CN205468311U - Dump truck - Google Patents

Abstract

The utility model discloses a dump truck. This dump truck includes the frame, the first and second bridge assemblies, second and first bridge assembly along the spaced apart setting of fore -and -aft direction, second bridge assembly includes two axle assemblies, and every axle assembly all includes the axle housing assembly, and the axle housing assembly includes axle housing subassembly and two semi -axiss, in two axle assemblies at least one is the electric drive axle assembly, the electric drive axle assembly still includes electric power assembly and linkage, the electric power assembly includes motor power, the derailleur, differential mechanism, the derailleur has gearbox housing, motor power fixes on gearbox housing, differential mechanism is located the axle housing subassembly, gearbox housing fixes on the axle housing subassembly, the derailleur includes a plurality of transmission shafts, a plurality of transmission shafts set gradually from the top down, linkage connects between electric power assembly and frame, suspension system, every axle assembly all link to each other with the frame through suspension system. According to the utility model discloses a dump truck, compact structure, green and transmission are more steady.

Description

Dumper

Technical field

This utility model relates to engineering truck field, in particular to a kind of dumper.

Background technology

In correlation technique, power motor, variator, power transmission shaft and vehicle bridge are separated layout, and power one-level one-level is transmitted, transmission link is many, transmission chain length, and transmission efficiency is low, volume is big, difficult arrangement, particularly, some dumpers are this, for meeting significant power demand, power motor, variator volume generally the biggest, it is big that vehicle bridge bears moment of torsion, vehicle bridge and variator bonding strength are difficult to ensure card, there is room for improvement.

Utility model content

One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.A kind of have that volume is little, degree of integration is high and the dumper of the driving axis of stable transmission to this end, the utility model proposes.

Include according to dumper of the present utility model: vehicle frame；First axle assembly；Second axle assembly, described second axle assembly and the described first the most spaced apart setting of axle assembly, described second axle assembly includes two axle assemblies of the most spaced apart setting, each described axle assembly all includes axle case assy, described axle case assy includes that axle housing assembly and two semiaxis, two described semiaxis are positioned at described axle housing assembly；At least one in two described axle assemblies is electric drive axle assembly, described electric drive axle assembly also includes electric power assembly and suspension arrangement, described electric power assembly includes power motor, variator, differential mechanism, described variator has case of transmission, described power motor is fixed on described case of transmission, described differential mount is on described case of transmission, described differential mechanism is positioned at described axle housing assembly, described case of transmission is fixed on described axle housing assembly, described variator includes multiple power transmission shaft, the plurality of power transmission shaft sets gradually from the top down, described suspension arrangement is connected between described electric power assembly and described vehicle frame；Suspension system, each described axle assembly is all connected with described vehicle frame by described suspension system.

Dumper according to utility model, by at least one in two axle assemblies in the second axle assembly is set to compact conformation, driving-chain is short, transmission efficiency is high and arranges easy electric drive axle assembly so that dumper realize driving process steadily, environmental protection, zero-emission, no pollution, low noise；By suspension system, vehicle frame is connected with each axle assembly, make dumper more comfortable, by multiple power transmission shafts are set gradually from the top down, it is greatly shortened the barycenter distance to the center of axle case assy of electric power assembly, the opposing torque of axle case assy is reduced by electric power assembly, connecting reliable, transmission is more steady.

Accompanying drawing explanation

Fig. 1 is the structural representation of the second axle assembly according to this utility model embodiment and vehicle frame；

Fig. 2 is the top view of Fig. 1；

Fig. 3 is the structural representation of the second axle assembly according to this utility model embodiment；

Fig. 4 is the top view of Fig. 3；

Fig. 5 is the structural representation looking up angle of Fig. 3；

Fig. 6 is the structural representation of the electric drive axle assembly according to this utility model embodiment；

Fig. 7 is the sectional view of Fig. 6；

Fig. 8 is the enlarged drawing at the E of Fig. 7；

Fig. 9 is the structural representation of the axle case assy according to this utility model embodiment；

Figure 10 is the structural representation of the electric power assembly according to this utility model embodiment；

Figure 11 is the internal structure schematic diagram of the variator according to this utility model embodiment；

Figure 12 is the side view of Figure 11；

Figure 13 is the structural representation of the power takeoff according to this utility model embodiment；

Figure 14 is the drive mechanism schematic diagram according to dumper of the present utility model；

Figure 15 is the front view of the dumper according to this utility model embodiment.

Reference:

nullDumper 10000、Second axle assembly 1000、Electric drive axle assembly 100、Electric power assembly 101、Power motor 11、Motor output shaft VI、Coolant circulation passage 111、Entrance A、Outlet B、Variator 12、Case of transmission 121、First axle I、Second axle II、3rd axle III、First shaft part III-1、Second shaft part III-2、4th axle IV、Input gear q、Idle pulley q '、First gear k1、Second gear k2、One gear driving gear 1、One gear driven gear 1 '、Two gear driving gears 2、Two gear driven gears 2 '、Three gear driving gears 3、Three gear driven gears 3 '、Output gear z、One or four gear lock unit S1、Two or three gear lock unit S2、Bearing B1、Bearing B2、Differential mechanism 13、Differential mechanism driven gear z '、Power takeoff 14、Power taking axle V、Power take-off gear k3、Power taking lock unit S3、Power takeoff housing 141、Power takeoff bearing 142、Electro-hydraulic gearshift performs module 15、Device 16 to be driven、Axle case assy 102、Hub reduction gear 20、Hub reduction gear housing 201、Sun gear 202、Planetary gear 203、Ring gear 204、Ring gear support 205、Back-up ring 206、Axle housing assembly 21、Axle housing 210、Cap 213、Brake mounting board 214、Semiaxis 22、Axle tube 23、Hub assembly 24、Hub bearing 241、Brake 25、Brake drum 251、Axial limiting part 27、Stop nut 271、Locking gasket 272、First axle assembly 300、Vehicle frame 400、Suspension system 500、Elastic component 50、Balance shaft assembly 51、U-bolts 52、First distance rod 53、Second distance rod 54、First distance rod vehicle frame mounting seat 551、First distance rod axle housing mounting seat 552、Second distance rod balance axle mounting seat 553、Second distance rod axle housing mounting seat 554、Elastic component mounting seat 555、First distance rod V-arrangement axle housing mounting seat 556、Bolt 403、Bolt 405、Bolt 406.

Detailed description of the invention

Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings.The embodiment described below with reference to accompanying drawing is exemplary, it is intended to be used for explaining this utility model, and it is not intended that to restriction of the present utility model.

Referring to Fig. 1-Figure 15, the dumper 10000 according to this utility model embodiment is described.As shown in Fig. 1-Figure 15, include vehicle frame the 400, first axle assembly the 300, second axle assembly 1000 and suspension system 500 according to the dumper 10000 of this utility model embodiment.

First axle assembly 300 and the second axle assembly 1000 are along the spaced apart setting in direction before and after dumper 10000, such as shown in Figure 15, the first axle assembly 300 is the front axle assembly of dumper 10000, and the second axle assembly 1000 is the rear axle assembly of dumper 10000.

Wherein, as shown in figure 15, the second axle assembly 1000 includes two axle assemblies of the spaced apart setting in direction before and after dumper 10000.As Figure 1-Figure 5, each axle assembly all includes that axle case assy 102, axle case assy 102 include axle housing assembly 21 and two semiaxis 22, and two semiaxis 22 are positioned at axle housing assembly 21.

At least one in two axle assemblies is electric drive axle assembly 100, and one in i.e. two axle assemblies can be electric drive axle assembly 100, and another is driven bridge；Or two axle assemblies are electric drive axle assembly 100.

Two axle assemblies be all electric drive axle assembly 100 embodiment in, each axle assembly all can drive dumper 10000 to travel, thus the second axle assembly is drive axle and powerful, adapts to level road and climbing, and comprehensive economy is good.

Preferably, two electric drive axle assemblies 100 are arranged to an electric drive axle assembly 100 is that another electric drive axle assembly 100 is formed after the axis being perpendicular to fore-and-aft direction rotates 180 °.It is to say, an electric drive axle assembly 100 is rear driving axle, another electric drive axle assembly 100 is middle drive axle, and another electric drive axle assembly 100 is that this electric drive axle assembly 100 is formed after the axis being perpendicular to fore-and-aft direction rotates 180 °.Thus, the more compact structure of the second axle assembly 1000, it is simple to arrange, space availability ratio is high and load is evenly distributed.

Preferably, two electric drive axle assemblies 100 can be just the same, and so middle drive axle and rear driving axle can share, thus reduce and manufacture cost.Certainly, in other embodiment more of the present utility model, two electric drive axle assemblies 100 can have nuance.

Further, two axle assemblies be all electric drive axle assembly 100 embodiment in, dumper 10000 can also include two electric machine controllers, two electric machine controllers and two electric drive axle assembly 100 one_to_one corresponding, and each electric machine controller individually controls the power motor 11 of electric drive axle assembly 100 of correspondence.Thus, two electric drive axle assemblies 100 work independently, non-interference, are controlled by two electric machine controllers respectively, by being precisely controlled the rotating speed of unit motivation of adjustment motor 11, thus realize real-time synchronization.Additionally, due to two electric drive axle assemblies 100 can work independently, even if there being an electric drive axle assembly 100 not work, another electric drive axle assembly 100 also can drive car load to run, and there are two independent power sources, i.e. two independent power motors 11 so that car load power is more powerful.

In two axle assemblies one is electric drive axle assembly 100, and in the embodiment that another is driven bridge in two axle assemblies, electric drive axle assembly 100 drives driven bridge, it is achieved the traveling of dumper 10000, and simple in construction and layout are easily.

As shown in Fig. 6-Figure 14, electric drive axle assembly 100 includes electric power assembly 101 and axle case assy 102.Electric power assembly 101 includes power motor 11, variator 12 and differential mechanism 13.As shown in Fig. 6-Fig. 9, axle case assy 102 includes axle housing assembly 21 and two semiaxis 22.Two semiaxis 22 and differential mechanism 13 are respectively positioned in axle housing assembly 21.

It is understandable that, the power of power motor 11 output adjusts torsion to pass to differential mechanism 13 through the speed change of variator 12, two outfans of differential mechanism 13 output power to two semiaxis 22, and semiaxis 22 imparts power to coupled wheel, thus drives dumper 10000 to travel.

As shown in Figure 6 and Figure 7, in the electric drive axle assembly 100 of this utility model embodiment, variator 12 has variator 12 housing 121, and power motor 11 is fixed on variator 12 housing 121, differential mechanism 13 is bearing on variator 12 housing 121, and variator 12 housing 121 is fixed on axle housing assembly 21.Such as, in embodiments more of the present utility model, power motor 11 can be threaded connection part and be fixed on variator 12 housing 121, and variator 12 housing 121 can be threaded connection part and be fixed on axle housing assembly 21, and differential mechanism 13 is bearing on variator 12 housing 121 by bearing.

That is, in electric drive axle assembly 100, variator 12 housing 121 can be as the installation carrier of power motor 11, and the connection member that variator 12 housing 121 is electric power assembly 101 and axle case assy 102, thus power motor 11, variator 12, differential mechanism 13 and axle case assy 102 are integrated.

Electric drive axle assembly 100 according to this utility model embodiment, by power motor 11, variator 12, differential mechanism 13 and axle case assy 102 are integrated, thus compact conformation, assembling is simple, alleviate quality, volume is little, it is little to take up room, be easy on dumper 10000 arrange, and shorten driving chain, transmission loss is little, transmission efficiency is high.

Variator 12 includes multiple power transmission shaft, multiple power transmission shafts set gradually from the top down, are thus greatly shortened the barycenter distance to the center of axle case assy 102 of electric power assembly 101 so that the opposing torque of axle case assy 102 is reduced by electric power assembly 101, connecting reliable, transmission is more steady.

Further, electric drive axle assembly 100 can also include suspension arrangement, and suspension arrangement is connected between electric power assembly 101 and vehicle frame 400.It is to say, electric power assembly 101 is not to be carried by axle case assy 102 completely, electric power assembly 101 is connected with vehicle frame 400 also by suspension arrangement, so can active balance electric power assembly 101 centroid motion and to axle case assy 102 produce moment of torsion.By arranging suspension arrangement, impact can be effectively reduced, reach electric power assembly 101 as far as possible and beat Tong Bu with axle case assy 102, moment between electric power assembly 101 and axle case assy 102 is almost dropped to zero, ensure connection reliability between the two, ensure power transmission stability, it is ensured that the safety in utilization of whole electric drive axle assembly 100.

The arrangement of this electric drive axle assembly 100, more conducively electric power assembly 101 volume are big, the high-power dumper of power motor 11 10000, thus meet the traveling demand of the dumper 10000 of heavy-load type well.

Suspension arrangement can be connected between the one end away from axle case assy 102 and the vehicle frame 400 of variator 12 housing 121, thus more conducively balance electric power assembly 101 centroid motion and to axle case assy 102 produce moment of torsion, make electric power assembly 101 more stable with the installation of axle case assy 102.

Alternatively, suspension arrangement can include that two vibroshocks, two vibroshocks can be symmetricly set on the left and right sides of variator 12 housing 121.Thus, the stress of electric power assembly 101 more equalizes.Vehicle frame 400 can include crossbeam, and one end of vibroshock is arranged on crossbeam, and the other end of vibroshock is arranged on variator 12 housing 121.

Electric drive axle assembly 100 according to this utility model embodiment, by arranging suspension arrangement between electric power assembly 101 and vehicle frame 400, impact can be effectively reduced, reach electric power assembly 101 as far as possible and beat Tong Bu with axle case assy 102, moment between electric power assembly 101 and axle case assy 102 is almost dropped to zero, it is ensured that connection reliability between the two, it is ensured that power transmission stability, the use making whole electric drive axle assembly 100 is more reliable, safer.

Each axle assembly is all connected with vehicle frame 400 by suspension system 500.It is to say, the connection member that suspension system 500 is vehicle frame 400 and each axle assembly, so that the impact of car load is greatly reduced by the vibration of the drive system of dumper 10000, draw high the comfortableness of car load.

Dumper 10000 according to utility model embodiment, by at least one in two axle assemblies in the second axle assembly is set to compact conformation, driving-chain is short, transmission efficiency is high and arranges easy electric drive axle assembly so that dumper 10000 realize driving process steadily, environmental protection, zero-emission, no pollution, low noise；By suspension system 500, vehicle frame 400 is connected with each axle assembly, make dumper 10000 more comfortable, by multiple power transmission shafts are set gradually from the top down, it is greatly shortened the barycenter distance to the center of axle case assy 102 of electric power assembly 101, the opposing torque of axle case assy 102 is reduced by electric power assembly 101, connecting reliable, transmission is more steady.

The dumper 10000 according to this utility model embodiment is described in detail referring to Fig. 1-Figure 15.As shown in figure 15, dumper 10000 includes vehicle frame the 400, first axle assembly the 300, second axle assembly and suspension system 500.

First axle assembly 300 and the second axle assembly 1000 are along the spaced apart setting in direction before and after dumper 10000, second axle assembly 1000 includes two axle assemblies, at least one in two axle assemblies is electric drive axle assembly 100, and each axle assembly is all connected with vehicle frame 400 by suspension system 500.

The suspension system 500 according to this utility model embodiment is described in detail referring to Fig. 1-Fig. 5.As Figure 1-Figure 5, suspension system 500 includes the first distance rod group of two elastic components 50, balance shaft assembly 51 and the most spaced apart setting and the second distance rod group of the most spaced apart setting.

Two the most spaced apart settings of elastic component 50, a left side being positioned at dumper 10000, a right side being positioned at dumper 10000.The two ends (i.e. front-end and back-end) of each elastic component 50 are connected with two axle housing assemblies 21 respectively, and each elastic component 50 is respectively positioned on the top of two axle housing assemblies 21.Alternatively, elastic component 50 includes at least one of which leaf spring, it is preferable that elastic component 50 is multilamellar leaf spring, and the stacking from top to bottom of multilamellar leaf spring is arranged.

In other words, the front end of elastic component 50 in left side is connected with the left end of the axle housing assembly 21 of located anteriorly axle assembly, the rear end of elastic component 50 in left side is connected with the left end of the axle housing assembly 21 of the axle assembly being located behind, and the elastic component 50 in left side is positioned at the top of two axle housing assemblies 21；The front end of elastic component 50 on right side is connected with the right-hand member of the axle housing assembly 21 of located anteriorly axle assembly, the rear end of elastic component 50 on right side is connected with the right-hand member of the axle housing assembly 21 of the axle assembly being located behind, and the elastic component 50 on right side is positioned at the top of two axle housing assemblies 21.

That is, according to dumper 10000 of the present utility model, it is placed in elastic component less than 50 owing to axle housing assembly 21 is whole, i.e. axle case assy 102 and electric power assembly 101 is respectively positioned on elastic component 50 (leaf spring) lower section, make electric power assembly 101 vibrate the impact on car load to greatly reduce, draw high the comfortableness of car load, and the process of driving steadily, environmental protection, zero-emission, no pollution, low noise.

Balance shaft assembly 51 is fixed on vehicle frame 400, and balance shaft assembly 51 is in the longitudinal direction between two axle assemblies, i.e. two axle assemblies lay respectively at the both sides of balance shaft assembly 51, the middle part of each elastic component 50 is each attached on balance shaft assembly 51, that is, balance shaft assembly 51 can be as the connection member of elastic component 50 with vehicle frame 400, the middle part of the elastic component 50 in left side is fixed on the left end of balance shaft assembly 51, and the middle part of the elastic component 50 on right side is fixed on the right-hand member of balance shaft assembly 51.Thus elastic component 50 is fixing more firm, and on the end of the same side that the two ends of the most each elastic component 50 are separately fixed at two axle housing assemblies 21, and the middle part of each elastic component 50 is fixed in the respective end of balance shaft assembly 51.

Including as a example by least one of which leaf spring by elastic component 50, the middle part of elastic component 50 is fixed on balance shaft assembly 51 by U-bolts 52, i.e. at least one of which leaf spring is fixed on corresponding one end of balance shaft assembly 51 by U-bolts 52.

Alternatively, each elastic component 50 is fixed in the respective end of balance axle by the U-bolts 52 that two fore-and-aft directions are spaced apart.

As Figure 1-Figure 5, first distance rod group includes the most symmetrically arranged two the first subgroups, two the first subgroups and two axle housing assembly 21 one_to_one corresponding, the most each first subgroup all includes that multiple first distance rod 53, each first distance rod 53 are both connected between vehicle frame 400 and corresponding axle housing assembly 21.

Second distance rod group includes the most symmetrically arranged two the second subgroups, two the second subgroups and two axle housing assembly 21 one_to_one corresponding, each second subgroup all includes that multiple second distance rod 54, each second distance rod 54 are both connected between balance shaft assembly 51 and corresponding axle housing assembly 21.

In other words, any one first distance rod 53 in first distance rod group is both connected between vehicle frame 400 and corresponding axle housing assembly 21, any one second distance rod 54 in second distance rod group is both connected between balance shaft assembly 51 and corresponding axle housing assembly 21, by above-mentioned two distance rod group and balance shaft assembly 51 and the connection with vehicle frame 400, the position making two axle assembly relative frame 400 is fixed, when second axle assembly produces power, vehicle body is pushed advance.

In an embodiment specifically of the present utility model, first distance rod group is positioned at the top of the second distance rod group, one end of each first distance rod 53 is connected with the middle part of corresponding axle housing assembly 21, one end of the most each first distance rod 53 is all connected with the middle part of corresponding axle housing assembly 21 by the first distance rod axle housing mounting seat 552, first distance rod axle housing mounting seat 552 is fixed on the middle part of axle housing assembly 21, and the first distance rod axle housing mounting seat 552 is positioned at the top of axle housing assembly 21.

The other end of each first distance rod 53 is connected with vehicle frame 400 by the first distance rod vehicle frame mounting seat 551, and the first distance rod vehicle frame mounting seat 551 is fixed on vehicle frame 400, and the first distance rod vehicle frame mounting seat 551 is positioned at the centre of two axle housing assemblies 21.

In other words, each the most corresponding first distance rod axle housing mounting seat 552 of first distance rod 53 and a first distance rod vehicle frame mounting seat 551, the front end of the first distance rod 53 in the first located anteriorly subgroup is connected with the middle part of the axle housing assembly 21 in front by the first distance rod axle housing mounting seat 552, and the rear end of the first distance rod 53 in the first located anteriorly subgroup is connected with vehicle frame 400 by the first distance rod vehicle frame mounting seat 551；The rear end of the first distance rod 53 in the first subgroup being located behind is connected with the middle part of the axle housing assembly 21 at rear by the first distance rod axle housing mounting seat 552, and the front end of the first distance rod 53 in the first subgroup being located behind is connected with vehicle frame 400 by the first distance rod vehicle frame mounting seat 551.

Preferably, one end of each first distance rod 53 is respectively positioned on the inner side of the other end of same first distance rod 53, that is, each first distance rod 53 is all obliquely installed, and the first distance rod 53 in the first located anteriorly subgroup stretches out from front to back, the first distance rod 53 in the first subgroup being located behind extends internally from front to back.

Preferably, the first distance rod vehicle frame mounting seat 551 is fixed on the inner side of vehicle frame 400, the thus more compact structure of suspension system 500, and connects and assemble more convenient.It is understood that vehicle frame 400 can include two longerons of the most spaced apart setting, the first distance rod vehicle frame mounting seat 551 in left side is positioned at the side rail inner in left side, and the first distance rod vehicle frame mounting seat 551 on right side is positioned at the side rail inner on right side.

In concrete examples more of the present utility model, each first subgroup all includes two the first distance rods 53, one end of two the first distance rods 53 is integrally formed, the first distance rod axle housing mounting seat 552 corresponding with the first subgroup is two, and two the first distance rods 53 are connected one to one with two the first distance rod axle housing mounting seats 552；The first distance rod vehicle frame mounting seat 551 corresponding with the first subgroup is two, the other end of two the first distance rods 53 and two the first distance rod vehicle frame mounting seat 551 one_to_one corresponding.

In other words, two corresponding with two the first distance rod 53 structures of each first subgroup the first distance rod axle housing mounting seats 552 are integrated into a first distance rod V-arrangement axle housing mounting seat 556.

Preferably, the first distance rod vehicle frame mounting seat 551 being connected with the rear end of first distance rod 53 in the left side of the first subgroup being positioned at front side and the first distance rod vehicle frame mounting seat 551 being connected with the front end of first distance rod 53 in the left side of the first subgroup being positioned at rear side may be integrally formed, the first distance rod vehicle frame mounting seat 551 being connected with the rear end of first distance rod 53 on the right side of the first subgroup being positioned at front side and the first distance rod vehicle frame mounting seat 551 being connected with the front end of first distance rod 53 on the right side of the first subgroup being positioned at rear side may be integrally formed.The most integral part of two the first distance rod vehicle frame mounting seats 551, structural strength is high, and the assembling with vehicle frame 400 is simpler.Alternatively, the first distance rod vehicle frame mounting seat 551 after this is integrated can be threaded connection part and be fixed on vehicle frame 400.

In an embodiment specifically of the present utility model, first distance rod group is positioned at the top of the second distance rod group, one end of each second distance rod 54 is connected with the end of corresponding axle housing assembly 21, one end of the most each second distance rod 54 is all connected with the end of corresponding axle housing assembly 21 by the second distance rod axle housing mounting seat 554, second distance rod axle housing mounting seat 554 is fixed on the end of axle housing assembly 21, and the second distance rod axle housing mounting seat 554 is positioned at the lower section of corresponding axle housing assembly 21.

The other end of each second distance rod 54 is connected with balance shaft assembly 51 by the second distance rod balance axle mounting seat 553, second distance rod balance axle mounting seat 553 is fixed on the end of balance shaft assembly 51, and the end of axle housing assembly 21 corresponding with same second distance rod 54 and the end of balance shaft assembly 51 are positioned at the same side of the second axle assembly.

In other words, the most corresponding second distance rod axle housing mounting seat 554 of each second distance rod 54 and a second distance rod balance axle mounting seat 553, the front end of second distance rod 54 in the located anteriorly left side in the second subgroup is connected with the left part of the axle housing assembly 21 in front by the second distance rod axle housing mounting seat 554, and the front end of second distance rod 54 on the located anteriorly right side in the second subgroup is connected with the right part of the axle housing assembly 21 in front by the second distance rod axle housing mounting seat 554；The rear end of second distance rod 54 in the located anteriorly left side in the second subgroup is connected with the left end of balance shaft assembly 51 by the second distance rod balance axle mounting seat 553, and the rear end of second distance rod 54 on the located anteriorly right side in the second subgroup is connected with the right-hand end of balance shaft assembly 51 by the second distance rod balance axle mounting seat 553.

The rear end of second distance rod 54 in the left side in the second subgroup being located behind is connected with the left part of the axle housing assembly 21 at rear by the second distance rod axle housing mounting seat 554, and the rear end of second distance rod 54 on the right side in the second subgroup being located behind is connected with the right part of the axle housing assembly 21 at rear by the second distance rod axle housing mounting seat 554；The front end of second distance rod 54 in the left side in the second subgroup being located behind is connected with the left end of balance shaft assembly 51 by the second distance rod balance axle mounting seat 553, and the front end of second distance rod 54 on the right side in the second subgroup being located behind is connected with the right-hand end of balance shaft assembly 51 by the second distance rod balance axle mounting seat 553.

Preferably, one end of each second distance rod 54 is respectively positioned on the inner side of the other end of same second distance rod 54, that is, each second distance rod 54 is all obliquely installed, and the second distance rod 54 in the second located anteriorly subgroup extends internally from front to back, the second distance rod 54 in the second subgroup being located behind stretches out from front to back.

In concrete examples more of the present utility model, each second subgroup all includes two the second distance rods 54, and the second distance rod axle housing mounting seat 554 corresponding with the second subgroup is two.Further, as shown in Figure 3, two the elastic component mounting seats 555 being respectively fixed at two ends with the most spaced apart setting of the axle housing assembly 21 corresponding with the second subgroup, two elastic component mounting seats 555 and two the second distance rod axle housing mounting seat 554 one_to_one corresponding, each second distance rod axle housing mounting seat 554 is each attached to the lower section of the elastic component mounting seat 555 of correspondence, and each second distance rod balance axle mounting seat 553 is each attached to the lower section of balance shaft assembly 51.

In other words, the left end of the axle housing assembly 21 corresponding with the second subgroup fixes an elastic component mounting seat 555, second distance rod axle housing mounting seat 554 of corresponding left end is fixed on the lower section of the elastic component mounting seat 555 of left end, and a second distance rod balance axle mounting seat 553 is fixed in the lower section of the left end of the balance shaft assembly 51 corresponding with the second subgroup；The right-hand member of the axle housing assembly 21 corresponding with the second subgroup fixes an elastic component mounting seat 555, second distance rod axle housing mounting seat 554 of corresponding right-hand member is fixed on the lower section of the elastic component mounting seat 555 of right-hand member, and a second distance rod balance axle mounting seat 553 is fixed in the lower section of the right-hand member of the balance shaft assembly 51 corresponding with the second subgroup.So, second distance rod group is disposed entirely within the lower section of the first distance rod group, the top making axle assembly is all fixed with vehicle frame 400 with lower section, such that it is able to make vehicle frame 400 be relatively fixed with the position of axle assembly, and stress more balances, load is more evenly distributed, and optimizes the arrangement of dumper 10000.

Preferably, the two ends of each first distance rod 53 and the two ends of each second distance rod 54 are respectively provided with ball articulated structure, thus the first distance rod 53 and vehicle frame 400 and the junction of axle assembly, and second distance rod 54 and balance shaft assembly 51 and the junction of axle assembly, it is respectively provided with certain flexibility, good damping result, easy to connect.

Preferably, in some embodiments as Figure 1-Figure 5, two axle assemblies are electric drive axle assembly 100, and an electric drive axle assembly 100 is to be formed after another electric drive axle assembly 100 revolves turnback, thus middle drive axle and rear driving axle can share, an axle assembly only need to be developed, and four first distance rods 53 of the first distance rod group and four second distance rods 54 of the second distance rod group, each only need develops a kind of state, greatly reduces development cost.

In brief, dumper 10000 according to this utility model embodiment, electric drive axle assembly 100 is by power motor 11, variator 12 and axle case assy 102 are integrated in one, compact conformation and transmission efficiency are high, and the second axle assembly 1000 of dumper 10000 all uses electric drive mode, capacity usage ratio is high, response speed block, and have higher power performance, in addition the whole power section of dumper 10000 is all located under elastic component 50, the i.e. vibration source of car load is placed in elastic component 50 times, after the vibration damping of suspension system 500, vibration weakening, car load comfortableness is greatly improved, and multiple parts (such as axle assembly, first distance rod 53, second distance rod 54) can share, development cost is low.Preferably, when two axle assemblies are electric drive axle assembly 100, two electric drive axle assemblies 100 can work asynchronously, can also work independently, even if there being an electric drive axle assembly 100 another electric drive axle assembly 100 that can not work that car load also can be driven to run, two independent power sources so that car load power is more powerful.

The electric drive axle assembly 100 according to this utility model embodiment is described in detail referring to Fig. 6-Figure 15.Electric drive axle assembly 100 as shown in Fig. 6-Figure 15 includes electric power assembly 101, axle case assy 102 and suspension arrangement.Alternatively, electric power assembly 101 can be bolted on axle case assy 102 by multiple, thus is integrated into electric drive axle assembly 100.

As shown in Fig. 6, Fig. 7, Figure 10-Figure 14, electric power assembly 101 includes that power motor 11, variator 12 and differential mechanism 13, electro-hydraulic gearshift perform module 15, and wherein variator 12 has variator 12 housing 121.

As shown in Figure 6, power motor 11 can be bolted on variator 12 housing 121 by multiple, and multiple bolts are provided at circumferentially spaced around power motor 11.Power motor 11 can be permagnetic synchronous motor.Power motor 11 is by triple line external power supply, it is achieved power motor 11 drives.

As shown in Figure 10, power motor 11 includes active cooling structure.Active cooling structure is for actively cooling down power motor 11.In some optional embodiments, active cooling structure includes the coolant circulation passage 111 for power motor 11 cooling, is cooled down power motor 11 by coolant circulation in coolant circulation passage 111.As shown in Figure 10, coolant circulation passage 111 has entrance A and outlet B, and coolant can enter coolant circulation passage 111 from entrance A, and after carrying out heat exchange with power motor 11, from outlet B output.

Thus, by making power motor 11 carry active cooling structure, it is possible to prevent power motor 11 overheated, raising efficiency indirectly, prevent power motor 11 from burning out, and rotating speed high-power, high and long operational requirements can be met, preferably mate with the operating condition of trucd mixer, and may be used for light-duty to heavy complete set vehicle.

Preferably, active cooling structure can also include that coolant actuator, coolant actuator are located in coolant circulation passage 111 to drive coolant to flow in coolant circulation passage 111.Alternatively, coolant actuator can be cooling oil pump.Thus, active cooling structure carries coolant actuator, and degree of integration is high, and assembling is simple.

Certainly in optional embodiments more of the present utility model, coolant circulation passage 111 can also be connected with the coolant of the outside being positioned at electric drive axle assembly 100, that is, coolant can be introduced from outside into, i.e. the coolant circulation passage 111 of active cooling structure can share coolant actuator with the coolant peripheral passage of other parts on trucd mixer.

Variator 12 housing 121 can be bolted on the axle housing assembly 21 of axle case assy 102.Axle housing assembly 21 includes axle housing 210 and cap 213.The middle part of axle housing 210 has the differential mechanism receiving space that both sides end face all opens wide, cap 213 is removably mounted on axle housing 210 side end face opened wide at the middle part to close axle housing 210, and variator 12 housing 121 is fixed on the opposite side end face opened wide at the middle part of axle housing 210.

Alternatively, cap 213 can be threaded connection part and be removably mounted on axle housing 210, specifically, as shown in Fig. 6, Fig. 7 and Fig. 9, threaded connector is bolt 403, and cap 213 can be by being threaded in along the circumferentially spaced multiple bolts 403 of this cap 213 on the side end face opened wide at the middle part of axle housing 210.So, by being removably mounted on axle housing 210 by cap 213, the installation that can make electric power assembly 101 is more convenient, and fixed structure is simple, easy to operate.Specifically, the cap 213 of a side end face (i.e. a side end face at wheel bag) at the middle part of axle housing 210 makes assembled, can efficiently reduce electric power assembly 101 and the assembly difficulty of two semiaxis 22, be more beneficial for the maintenance of differential mechanism 13.

Preferably, electric drive axle assembly 100 also includes multiple bolt, variator 12 housing 121 is provided with multiple screwed hole, axle housing 210 is provided with via the most multiple with multiple screwed holes, multiple bolts and multiple via one_to_one corresponding, the screwed hole that each bolt is fixed on correspondence through corresponding via is interior to be fixed on by variator 12 housing 121 on the opposite side end face opened wide at the middle part of axle housing 210.

It is to say, according to the electric drive axle assembly 100 of this utility model embodiment, screwed hole is arranged on variator 12 housing 121, and via is arranged on axle housing 210, so in the case of ensureing bonding strength, it is also possible to making variator 12 volume the least, structure is the compactest.

Further, as Fig. 7 shows, the two ends (i.e. left end and right-hand member) of axle housing assembly 21 can be respectively welded and be fixed with two axle tubes 23.

Axle case assy 102 can also include 24, two brakes 25 of 20, two hub assemblies of two hub reduction gears and two brake mounting boards 214, each hub assembly 24 is all installed in rotation on accordingly on axle tube 23, two axle tubes 23 are set in outside two semiaxis 22 correspondingly, two hub reduction gears 20 and two hub assembly 24 one_to_one corresponding, the input of each hub reduction gear 20 is connected with corresponding semiaxis 22, and the outfan of each hub reduction gear 20 is connected with corresponding hub assembly 24.

In specific embodiments more of the present utility model, as shown in Figure 8, hub reduction gear 20 is planetary reducer.Planetary reducer includes sun gear 202, planetary gear 203 and ring gear 204, sun gear 202 is fixed on semiaxis 22, with with semiaxis 22 synchronous axial system, planetary gear 203 engages with sun gear 202 and ring gear 204 respectively, and ring gear 204 is fixed on the axle tube 23 of correspondence by ring gear support 205.Thus, volume is little, and transmission efficiency is high, and reduction range is wide.

Alternatively, as shown in Figure 8, hub reduction gear 20 includes that hub reduction gear 20 housing 201, hub reduction gear 20 housing 201 can be fixed on hub assembly 24, reduces the volume of axle case assy 102, and compact conformation the most further, saves space.

Further, ring gear support 205 engages with ring gear 204, planetary reducer can also include back-up ring 206, back-up ring 206 is folded between ring gear support 205 and ring gear 204 diametrically, thus ring gear 204 is carried out the most spacing, preferably ensure that the assembly precision of hub reduction gear 20 and hub assembly 24.

Two brakes 25 and two hub assembly 24 one_to_one corresponding, i.e. one the corresponding hub assembly 24 of brake 25 is to be braked this hub assembly 24.Two brake mounting boards 214 are respectively welded on the two ends being fixed on axle housing assembly 21, two brakes 25 are threaded connection part and are fixed on correspondingly on two brake mounting boards 214, and the brake drum 251 of two brakes 25 is fixed on two hub assemblies 24 correspondingly.

Axle case assy 102 can also include two groups of axial limiting parts 27, two groups of axial limiting parts 27 and two hub assembly 24 one_to_one corresponding, and the i.e. one group corresponding hub assembly 24 of axial limiting part 27 is to carry out axial limiting to this hub assembly 24.Each ring gear support 205 is all set in by spline structure outside the axle tube 23 of correspondence, and often group axial limiting part 27 all includes stop nut 271 and locking gasket 272.Stop nut 271 and locking gasket 272 are all set in outside the axle tube 23 of correspondence, and stop nut 271 is threaded with corresponding axle tube 23 corresponding ring gear 204 and corresponding hub assembly 24 to be pressed between locking gasket 272 with the brake drum 251 of corresponding brake 25.

It is understandable that, 25, two brake mounting boards of 23, two brakes of 24, two axle tubes of 20, two hub assemblies of two hub reduction gears equal one_to_one corresponding of 27, two semiaxis of 214, two groups of axial limiting parts 22, and in a width direction of the vehicle, it is positioned at the two ends, left and right of axle housing assembly 21 with being respectively symmetrically.

Below as a example by right-hand member, the hub reduction gear 20 of this end, hub assembly 24, axle tube 23, brake 25, brake mounting board 214, the annexation of axial limiting part 27 and position relationship described:

Specifically, as shown in Figure 8, the right-hand member of axle housing assembly 21 is welded with an axle tube 23, and the hub assembly 24 of right-hand member is installed in rotation on the axle tube 23 of right-hand member, and the axle tube 23 of right-hand member is set in outside the semiaxis 22 on right side.Hub assembly 24 is a part for wheel, and the rotation of hub assembly 24 can realize the rotation of wheel.More specifically, as shown in Figure 8, the right-hand member of the semiaxis 22 of right-hand member is through the axle tube 23 of right-hand member, and it is threaded connection the hub reduction gear 20 of part (bolt 406 as in Fig. 8) and right-hand member (such as, hub reduction gear 20 housing 201) tighten together, the left end of the semiaxis 22 of right-hand member is connected with differential mechanism 13 by spline, the power that differential mechanism 13 exports is passed to the input of the hub reduction gear 20 of right-hand member by the semiaxis 22 of right-hand member, deceleration through the hub reduction gear 20 of right-hand member, then the hub assembly 24 that power passes to right-hand member via the outfan of the hub reduction gear 20 of right-hand member is driven vehicle wheel rotation.

The brake 25 of the right-hand member corresponding with the hub assembly 24 of right-hand member is arranged on the brake mounting board 214 of right-hand member, the brake mounting board 214 of right-hand member is fixed on the right-hand member of axle housing assembly 21, the brake drum 251 of the brake 25 of right-hand member is also fixed on the hub assembly 24 of right-hand member to rotate with hub assembly 24, such as brake mounting board 214 can be sheathed and be weldingly fixed on the axle housing 210 of axle housing assembly 21, the brake 25 of right-hand member is threaded connection part and is fixed on the brake mounting board 214 of right-hand member, and the brake drum 251 of the brake 25 of right-hand member can be fixed on the hub assembly 24 of right-hand member by bolt 405, wherein threaded connector and bolt 405 are multiple.The most in the axial direction, i.e. on the left and right directions of vehicle, the brake 25 of corresponding end is between the brake mounting board 214 and the hub assembly 24 of corresponding end of corresponding end.

The axial limiting part 27 corresponding with the hub assembly 24 of right-hand member is right-hand member group, then the stop nut 271 of right-hand member group and the locking gasket 272 of right-hand member group are all set in outside the axle tube 23 of right-hand member, and the stop nut 271 of right-hand member group threadeds with the axle tube 23 of right-hand member the ring gear support 205 of right-hand member and the hub assembly 24 of right-hand member to be pressed between the brake drum 251 of the locking gasket 272 of right-hand member group and the brake 25 of right-hand member.Thus hub assembly 24 can carry out axial locking by the cooperation of the brake drum 251 of stop nut 271 and brake 25, and in like manner, hub reduction gear 20 can also carry out axial locking by the cooperation of the brake drum 251 of stop nut 271 and brake 25.Specifically, hub reduction gear 20 housing 201, the brake drum 251 of brake 25, a part for hub assembly 24 are fixed together by bolt 405.

Locking gasket 272 is possible to prevent stop nut 271 to get loose.Specifically, each hub assembly 24 is all rotatably sleeved on by hub bearing 241 on the axle tube 23 of correspondence, and axial limiting part 27 can adjust the play of hub bearing 241.

Pass through above description, those skilled in the art, the hub reduction gear 20 of left end, hub assembly 24, axle tube 23, brake 25, brake mounting board 214, the annexation of axial limiting part 27 and position relationship can be derived, describe the most in detail at this.

Preferably, as shown in Figure 10, electric power assembly 101 can also include that electro-hydraulic gearshift performs module 15, and electro-hydraulic gearshift performs module 15 and is used for controlling variator 12, and electro-hydraulic gearshift performs module 15 and is arranged on variator 12 housing 121.This electro-hydraulic gearshift performs in module 15 equipped with the sensor matched and delicate flow valve, outside electronic control unit can be responded by the signal collected, the shift speed of variator 12, the time point of gear switching can be accurately controlled, make variator 12 smooth gear shifting, fast response time, maneuverability good, and driving fatigue can be reduced.

Differential-speed lock mechanism is arranged on variator 12, and differential-speed lock mechanism is arranged to optionally differential casing locking by two semiaxis 22 with the differential mechanism 13 of integrated electric drive axle.

The operation principle of differential-speed lock mechanism is, when driving wheel-slip for one, differential casing is locked integral with semiaxis 22, differential mechanism 13 is made to lose differential action, such that it is able to all torsion torque is transferred on the driving wheel of opposite side, for operating in the engineering truck particular importance that muddy road easily skids.

Axle case assy 102 according to this utility model embodiment, by arranging differential-speed lock mechanism, differential mechanism 13 can be made according to the different driving cycles of vehicle, it is achieved differential mechanism 13 differential function or the differential function of releasing differential mechanism 13, it is particularly well-suited to the trucd mixer that bad working environments is run, trucd mixer has strong impetus, and differential-speed lock mechanism is integrated on variator 12, compact conformation, firmly install, working stability, reliability is high, makes that electric drive axle assembly 100 reliability is higher, function is more perfect.

Variator includes transmission power input unit and transmission power output unit.Transmission power input unit is joined directly together with the motor output shaft of power motor, transmission power output unit is configured and adapted to export to differential mechanism from the power in transmission power input unit, and is exported to the wheel of dumper by differential mechanism to drive dumper to travel.Alternatively, as it is shown in figure 5, differential mechanism 13 can be bearing on case of transmission 121 by differential bearing.

Electric power assembly 101 can also include that power takeoff 14, power takeoff 14 include power takeoff input and power takeoff outfan.Power takeoff input is arranged to and at least one linkage in transmission power input unit and transmission power output unit.That is, power takeoff input can be arranged to link with transmission power input unit, power takeoff input can also be arranged to link with transmission power output unit, and power takeoff input can also be arranged to the linkage of transmission power input unit and link with transmission power output unit simultaneously.The action referred between two parts that wherein " links " has actively and driven relation, and a component actuation drives another component actuation.

Power takeoff outfan is arranged to be selectively engageable power takeoff input to export the power from power takeoff input.During it is to say, power takeoff outfan engages with power takeoff input, the power from power takeoff input can be exported to device 16 to be driven by power takeoff outfan.

Alternatively, power takeoff 14 is fixed on case of transmission 121, say, that power takeoff 14 is integrated on case of transmission 121, thus the more compact structure of electric power assembly 101.Specifically, power takeoff 14 can include power takeoff housing 141, and this power takeoff housing 141 is connected with case of transmission 121 or power takeoff housing 141 is integrally formed with case of transmission 121.

When variator 12 only needs to drive dumper, the power of power motor 11 passes sequentially through transmission power input unit, transmission power output unit, differential mechanism 13 export to the wheel of dumper, thus drive dumper to travel.

When needs drive device 16 to be driven, a part for the power of power motor 11 passes sequentially through transmission power input unit, transmission power output unit, differential mechanism 13 export to the wheel of dumper.Another part of the power of power motor 11 passes sequentially through at least one in transmission power input unit and transmission power output unit, power takeoff input, power takeoff outfan export to device 16 to be driven.

In a specific embodiment of the present utility model, device 16 to be driven is an oil pump, and this oil pump, under the driving of power takeoff 14, can produce high pressure liquid force feed, can be that the automobile-bucket lifting mechanism etc. of dumper provides power source, meet the demand of other power of car load.

It is to say, according to the electric drive axle assembly 100 for dumper of this utility model embodiment, by arranging power takeoff 14, power can be exported mechanism in need, more market demand can be met, make electric drive axle assembly 100 more practical.Additionally, due to power takeoff input and at least one linkage in transmission power input unit and transmission power output unit, thus drive disk assembly is few, transmission efficiency is high, and can reduce rate of breakdown, reduces manufacturing cost.

Power takeoff input can include that power take-off gear k3, power takeoff outfan can include power taking axle V, and as shown in figure 13, power taking axle V can be bearing on power takeoff housing 141 by power takeoff bearing 142.Power take-off gear k3 empty set is on power taking axle V, i.e. power take-off gear k3 can rotate relative to power taking axle V, say, that when power take-off gear k3 rotates, power taking axle V can not rotate.

Power takeoff 14 can also include that power taking lock unit S3, power taking lock unit S3 are arranged to optionally synchronize power take-off gear k3 and power taking axle V.It is to say, when device 16 to be driven needs power, power taking lock unit S3 is synchronize with power taking axle V by power take-off gear k3, thus the power that power take-off gear k3 exports is exported to device 16 to be driven by power taking axle V.When device 16 to be driven need not power, power take-off gear k3 separates with power taking axle V, and power take-off gear k3 can dally around power taking axle V.

In a specific embodiment of the present utility model, as shown in figures 11-14, multiple power transmission shafts can include first axle the I, second axle the II, the 3rd axle the III and the 4th axle IV.First axle the I, second axle the II, the 3rd axle the III and the 4th axle IV is all bearing on case of transmission 121 by bearing.Specifically, as shown in Figure 11, Figure 12 and Figure 14, first axle the I, second axle the II, the 3rd axle the III and the 4th axle IV all extends along the width of dumper, and the width of the dumper i.e. left and right directions of dumper, power motor 11 can be arranged in the right side of case of transmission 121.

First axle I is connected with the motor output shaft VI of power motor 11, such as, shown in Figure 11, the first axle I can be connected by spline structure with motor output shaft VI, and specifically, the first axle I has internal spline, and motor output shaft VI has the external splines coordinated with this internal spline.Certainly, the first axle I can also be connected by shaft coupling with motor output shaft VI.Electric power assembly 101 according to this utility model embodiment, by the motor output shaft VI of power motor 11 and the first axle I being joined directly together, driving-chain is short, and simple in construction.

As shown in Figure 11 and Figure 14, the first axle I is fixed with input gear q, i.e. input gear q can be with the first axle I synchronous axial system, and the second axle II is fixed with idle pulley q ', i.e. idle pulley q ' can be with the second axle II synchronous axial system, and idle pulley q ' engages with input gear q.

As shown in figure 14,3rd axle III includes the first shaft part III-1 and the second shaft part III-2 being coaxially disposed, and second shaft part III-2 be arranged to optionally engage with the first shaft part III-1, that is, second shaft part III-2 can engage with the first shaft part III-1 with the first shaft part III-1 synchronous axial system, and the second shaft part III-2 and the first shaft part III-1 can also the most individually rotate.

nullAs shown in figure 14，One end of first shaft part III-1 is set in outside the second shaft part III-2，One end near the first shaft part III-1 of i.e. second shaft part III-2 is bearing on the first shaft part III-1，First shaft part III-1 is further supported on case of transmission 121，Specifically，First shaft part III-1 is hollow axle，First shaft part III-1 has dead eye，Being bearing in the dead eye (internal perisporium of the i.e. first shaft part III-1) of the first shaft part III-1 by bearing B1 near one end of the first shaft part III-1 of second shaft part III-2，First shaft part III-1 (periphery wall of the i.e. first shaft part III-1) is bearing on case of transmission 121 also by bearing B2，Bearing B1 includes a pair taper roll bearing being positioned at one end that the second axle II holds，Bearing B2 includes two cylinder roller bearings laying respectively at the two ends of the first shaft part III-1.Being arranged by this inside and outside different types of bearing, the stress making the 3rd axle III is more reasonable, indirectly extends the service life of variator 12.

It is fixed with the first gear k1 on first shaft part III-1, i.e. first gear k1 can be with the first shaft part III-1 synchronous axial system, and first shaft part III-1 when not engaging with the second shaft part III-2, first gear k1 can relative second shaft part III-2 freely rotatable, when first shaft part III-1 engages with the second shaft part III-2, first gear k1 also can be with the second shaft part III-2 synchronous axial system, first gear k1 engages with idle pulley q ', it is set with multiple gear driven gear on second shaft part III-2, i.e. gear driven gear can rotate relative to the second shaft part III-2, that is, when gear driven gear rotates, second shaft part III-2 can not rotate.

Being fixed with the second gear k2 and multiple gear driving gear on 4th axle IV, the i.e. second gear k2 can be with the 4th axle IV synchronous axial system with each of which in the 4th axle IV synchronous axial system, and multiple gear driving gear.Second gear k2 and the first gear k1 engagement, multiple gear driving gears engage correspondingly with multiple gear driven gears.

Alternatively, the 3rd axle III has multiple with length and the structure of the 4th axle IV, and on the 3rd axle the III and the 4th axle IV, meshed gears also has different logarithms, thus variator 12 has more gear to export.

Wherein, first axle I, input gear q, the second axle II, idle pulley q ' constitute transmission power input unit, and the 3rd axle the III, first gear k1, the 4th axle the IV, second gear k2, multiple gear driving gear and multiple gear driven gear constitute transmission power output unit.

Further, as shown in figure 14, it is further fixed on output gear z on second shaft part III-2, i.e. output gear z can be with the second shaft part III-2 synchronous axial system, output gear z can engage with the differential mechanism driven gear z ' of differential mechanism 13, thus the power that power motor 11 is exported, it is delivered to differential mechanism 13 through variator 12, and driving semiaxis 22 and wheel by differential mechanism 13, it is achieved dumper travels.

It is further preferred that input gear q, idle pulley q ', the first gear k1, the second gear k2, multiple gear driving gear and multiple gear driven gear are angular gear.Output gear z is also angular gear.Thus, the travelling gear of electric power assembly 101 all uses angular gear, and whole variator 12 stable drive, noise is low, transmission efficiency is high and driving torque is big.

In a specific embodiment of the present utility model, multiple gear driven gears include gear driven gear 1 ', a two gear driven gear 2 ' and three gear driven gears 3 '.Multiple gear driving gears include gear driving gear 1, two gear driving gear 2 and three gear driving gears 3, one gear driven gear 1 ' engages with a gear driving gear 1, two gear driven gears 2 ' engage with two gear driving gears 2, and three gear driven gears 3 ' engage with three gear driving gears 3.

Transmission power output unit can also include one or four gear lock unit S1 and two or three gear lock unit S2.One or four gear lock unit S1 are arranged to optionally in the first shaft part III-1 and gear driven gear 1 ' be engaged with the second shaft part III-2.That is, second shaft part III-2 can be engaged by one or four gear lock unit S1 and the first shaft part III-1 with the first shaft part III-1 synchronous axial system, or the second shaft part III-2 can be engaged by one or four gear lock unit S1 and a gear driven gear 1 ' so that the second shaft part III-2 and keeps off driven gear 1 ' synchronous axial system, or the second shaft part III-2 can also be positioned at the centre position not engaging with the first shaft part III-1 and not engaging with a gear driven gear 1 '.

Two or three gear lock unit S2 are arranged to optionally in two gear driven gears 2 ' and three gear driven gears 3 ' be engaged with the second shaft part III-2.That is, second shaft part III-2 can engage so that the second shaft part III-2 and two keeps off driven gear 2 ' synchronous axial system by two or three gear lock unit S2 and two gear driven gears 2 ', or the second shaft part III-2 can be engaged by two or three gear lock unit S2 and three gear driven gears 3 ' so that the second shaft part III-2 and three keeps off driven gear 3 ' synchronous axial system, or the second shaft part III-2 can also be positioned at the centre position not engaging with two gear driven gears 2 ' and not engaging with three gear driven gears 3 '.

Wherein, as shown in figure 14, output gear z is positioned between a gear driven gear 1 ' and two gear driven gears 2 '.The thus more compact structure of variator 12.

In this four-speed gear shift device 12, the two ends of the first axle I are bearing on case of transmission 121 by paired taper roll bearing, idle pulley q ' is connected by inside and outside spline structure with the second axle II, second axle II is bearing on case of transmission 121 by the taper roll bearing that two ends are paired, three gear driven gears 3 ', two gear driven gears 2 ' and one gear driven gear 1 ' is connected on the second shaft part III-2 by bearing fit, two or three gear lock unit S2, one or four gear lock unit S1 and output gear z pass through spline structure cooperation be connected on the second shaft part III-2.Second gear k2 is connected on the 4th axle IV by spline structure, and three gear driving gear 3, two gear driving gears 2 and a gear driving gear 1 are all connected on the 4th axle IV by spline structure.Differential mechanism driven gear z ' can be fixedly mounted on differential mechanism 13 to be threaded connection the form of part or welding, drives differential mechanism 13 to rotate.

From the above description it can be seen that this utility model provides a four-speed gear shift device 12, speed ratio is big, moment of torsion is big, have stronger power performance, preferable maneuverability, can meet the use requirement of heavy goods vehicles.

In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", on " ", D score, " front ", " afterwards ", " left ", " right ", " vertically ", " level ", " push up ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of the instruction such as " circumferential " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.

In this utility model, unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection ", the term such as " fixing " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood as the case may be.

In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.

In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means that the specific features, structure, material or the feature that combine this embodiment or example description are contained at least one embodiment of the present utility model or example.In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be to combine in one or more embodiments in office or example in an appropriate manner.Additionally, in the case of the most conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be combined and combine by those skilled in the art.

Although above it has been shown and described that embodiment of the present utility model, it is understandable that, above-described embodiment is exemplary, it is not intended that to restriction of the present utility model, above-described embodiment can be changed in the range of this utility model, revises, replace and modification by those of ordinary skill in the art.

Claims (44)

1. a dumper, it is characterised in that including:

Vehicle frame；

First axle assembly；

Second axle assembly, described second axle assembly and the described first the most spaced apart setting of axle assembly, described second axle assembly includes two axle assemblies of the most spaced apart setting, each described axle assembly all includes axle case assy, described axle case assy includes that axle housing assembly and two semiaxis, two described semiaxis are positioned at described axle housing assembly；

At least one in two described axle assemblies is electric drive axle assembly, described electric drive axle assembly also includes electric power assembly and suspension arrangement, described electric power assembly includes power motor, variator, differential mechanism, described variator has case of transmission, described power motor is fixed on described case of transmission, described differential mount is on described case of transmission, described differential mechanism is positioned at described axle housing assembly, described case of transmission is fixed on described axle housing assembly, described variator includes multiple power transmission shaft, the plurality of power transmission shaft sets gradually from the top down, described suspension arrangement is connected between described electric power assembly and described vehicle frame；

Suspension system, each described axle assembly is all connected with described vehicle frame by described suspension system.

Dumper the most according to claim 1, it is characterized in that, described suspension system includes two elastic components of the most spaced apart setting, and the two ends of each described elastic component are connected with two described axle housing assemblies respectively, and each described elastic component is respectively positioned on the top of two described axle housing assemblies.

Dumper the most according to claim 2, it is characterised in that described suspension system also includes:

Balance shaft assembly, described balance shaft assembly is fixed on described vehicle frame and is positioned in the middle of two described axle assemblies in the longitudinal direction, and the middle part of each described elastic component is each attached on described balance shaft assembly.

Dumper the most according to claim 3, it is characterised in that described elastic component includes at least one of which leaf spring.

Dumper the most according to claim 4, it is characterised in that the middle part of described elastic component is fixed on described balance shaft assembly by U-bolts.

Dumper the most according to claim 3, it is characterised in that described suspension system also includes the first distance rod group and the second distance rod group of the most spaced apart setting；

Described first distance rod group includes the most symmetrically arranged two the first subgroups, two described first subgroups and two described axle housing assembly one_to_one corresponding, each described first subgroup all includes that multiple first distance rod, each described first distance rod are both connected between described vehicle frame and corresponding described axle housing assembly；

Described second distance rod group includes the most symmetrically arranged two the second subgroups, two described second subgroups and two described axle housing assembly one_to_one corresponding, each described second subgroup all includes that multiple second distance rod, each described second distance rod are both connected between described balance shaft assembly and corresponding described axle housing assembly.

Dumper the most according to claim 6, it is characterised in that

One end of each described first distance rod is connected with the middle part of corresponding described axle housing assembly, the other end of each described first distance rod is connected with described vehicle frame by the first distance rod vehicle frame mounting seat, and described first distance rod vehicle frame mounting seat is fixed on described vehicle frame and is positioned at the centre of two described axle housing assemblies.

Dumper the most according to claim 7, it is characterised in that one end of each described first distance rod is respectively positioned on the inner side of the other end of same described first distance rod.

Dumper the most according to claim 7, it is characterized in that, one end of each described first distance rod is all connected with the middle part of corresponding described axle housing assembly by the first distance rod axle housing mounting seat, and described first distance rod axle housing mounting seat is fixed on the middle part of described axle housing assembly and is positioned at the top of described axle housing assembly.

Dumper the most according to claim 9, it is characterized in that, each described first subgroup all includes two described first distance rods, and the described first distance rod axle housing mounting seat corresponding with described first subgroup is two, and two described first distance rod axle housing mounting seats are integrally formed；

The described first distance rod vehicle frame mounting seat corresponding with described first subgroup is two, the other end of two described first distance rods and two described first distance rod vehicle frame mounting seat one_to_one corresponding.

11. dumpers according to claim 7, it is characterised in that described first distance rod vehicle frame mounting seat is fixed on the inner side of described vehicle frame.

12. dumpers according to claim 6, it is characterised in that

One end of each described second distance rod is connected with the end of corresponding described axle housing assembly, the other end of each described second distance rod is connected with described balance shaft assembly by the second distance rod balance axle mounting seat, described second distance rod balance axle mounting seat is fixed on the end of described balance shaft assembly, and the end of described axle housing assembly corresponding with same described second distance rod and the end of described balance shaft assembly are positioned at the same side of described second axle assembly.

13. dumpers according to claim 12, it is characterised in that one end of each described second distance rod is respectively positioned on the inner side of the other end of same described second distance rod.

14. dumpers according to claim 12, it is characterized in that, one end of each described second distance rod is all connected with the end of corresponding described axle housing assembly by the second distance rod axle housing mounting seat, and described second distance rod axle housing mounting seat is fixed on the end of described axle housing assembly and is positioned at the lower section of corresponding described axle housing assembly.

15. dumpers according to claim 14, it is characterised in that each described second subgroup all includes two the second distance rods, the described second distance rod axle housing mounting seat corresponding with described second subgroup is two；

Two the elastic component mounting seats being respectively fixed at two ends with the most spaced apart setting of the described axle housing assembly corresponding with described second subgroup, two described elastic component mounting seats and two described second distance rod axle housing mounting seat one_to_one corresponding, each described second distance rod axle housing mounting seat is each attached to the lower section of the described elastic component mounting seat of correspondence；

Each described second distance rod balance axle mounting seat is each attached to the lower section of balance shaft assembly.

16. dumpers according to claim 6, it is characterised in that the two ends of each described first distance rod and each described second distance rod are respectively provided with ball articulated structure.

17. dumpers according to claim 1, it is characterized in that, two described axle assemblies are described electric drive axle assembly, and two described electric drive axle assemblies to be arranged to a described electric drive axle assembly be that another described electric drive axle assembly is formed after the axis being perpendicular to fore-and-aft direction rotates 180 °.

18. dumpers according to claim 17, it is characterized in that, also include: two electric machine controllers, two described electric machine controllers and two described electric drive axle assembly one_to_one corresponding, and each described electric machine controller individually controls the described power motor of corresponding described electric drive axle assembly.

19. dumpers according to claim 1, it is characterised in that in two described axle assemblies is electric drive axle assembly, another in two described axle assemblies is driven bridge.

20. according to the dumper according to any one of claim 1-19, it is characterised in that described power motor includes that active cooling structure, described active cooling structure include the coolant circulation passage cooled down for described power motor.

21. dumpers according to claim 20, it is characterised in that described active cooling structure also includes that coolant actuator, described coolant actuator are located in described coolant circulation passage to drive coolant to flow in described coolant circulation passage.

22. according to the dumper according to any one of claim 1-19, it is characterised in that described axle housing assembly includes:

Axle housing, the middle part of described axle housing has the differential mechanism receiving space that both sides end face all opens wide；

Cap, described cap is removably mounted on described axle housing the side end face opened wide at the middle part to close described axle housing, and described case of transmission is fixed on the opposite side end face opened wide at the middle part of described axle housing.

23. dumpers according to claim 22, it is characterised in that described cap is threaded connection part and is removably mounted on described axle housing.

24. dumpers according to claim 23, it is characterized in that, also include multiple bolt, described case of transmission is provided with multiple screwed hole, described axle housing is provided with and multiple the most multiple vias of described screwed hole, multiple described bolts and multiple described via one_to_one corresponding, the described screwed hole that each described bolt is fixed on correspondence through corresponding described via is interior to be fixed on by described case of transmission on the opposite side end face opened wide at the middle part of described axle housing.

25. according to the dumper according to any one of claim 1-19, it is characterized in that, the two ends of described axle housing assembly are respectively welded and are fixed with two axle tubes, described axle case assy also includes two hub assemblies, each described hub assembly is all installed in rotation on the most described axle tube, and two described axle tubes are set in outside two described semiaxis correspondingly.

26. dumpers according to claim 25, it is characterized in that, also include two hub reduction gears, two described hub reduction gears and two described hub assembly one_to_one corresponding, the input of each described hub reduction gear is connected with corresponding described semiaxis, and the outfan of each described hub reduction gear is connected with corresponding described hub assembly.

27. dumpers according to claim 26, it is characterized in that, described hub reduction gear is planetary reducer, described planetary reducer includes sun gear, planetary gear and ring gear, described sun gear is fixed on described semiaxis, described planetary gear engages with described sun gear and described ring gear respectively, and described ring gear is fixed on the described axle tube of correspondence by ring gear support.

28. dumpers according to claim 27, it is characterised in that described ring gear support engages with described ring gear, described planetary reducer also includes that back-up ring, described back-up ring are folded between described ring gear support and described ring gear diametrically.

29. dumpers according to claim 28, it is characterized in that, described axle case assy also includes two brakes and two brake mounting boards, two described brakes and two described hub assembly one_to_one corresponding, two described brake mounting boards are respectively welded on the two ends being fixed on described axle housing assembly, and two described brakes are all threaded connection part and are fixed on correspondingly on two described brake mounting boards, and the brake drum of two described brakes is fixed on two described hub assemblies correspondingly.

30. dumpers according to claim 29, it is characterized in that, also include and two described hub assemblies, two groups of axial limiting parts one to one, each described ring gear support is all set in by spline structure outside the described axle tube of correspondence, often organize described axial limiting part and all include stop nut and locking gasket, described stop nut and described locking gasket are all set in outside the described axle tube of correspondence and described stop nut connects with corresponding described half-axis sleeve screw thread corresponding described ring gear support and corresponding described hub assembly to be pressed between described locking gasket with the described brake drum of corresponding described brake.

31. according to the dumper according to any one of claim 1-19, it is characterized in that, described axle case assy also includes differential-speed lock mechanism, described differential-speed lock mechanism is arranged on described variator, and is arranged to optionally differential casing locking by two described semiaxis with described differential mechanism.

32. according to the dumper according to any one of claim 1-19, it is characterized in that, described variator includes transmission power input unit and transmission power output unit, described transmission power input unit is joined directly together with the motor output shaft of described power motor, and described transmission power output unit is configured and adapted to export to described differential mechanism from the power in described transmission power input unit.

33. dumpers according to claim 32, it is characterized in that, described electric power assembly also includes power takeoff, described power takeoff includes power takeoff input and power takeoff outfan, described power takeoff input is arranged to and at least one linkage in described transmission power input unit and described transmission power output unit, described power takeoff outfan is arranged to be selectively engageable described power takeoff input with output from the power of described power takeoff input, and described power takeoff is fixed on described case of transmission.

34. dumpers according to claim 33, it is characterized in that, described power takeoff input includes: power take-off gear, described power takeoff outfan includes power taking axle, described power take-off gear empty set is on described power taking axle, and described power takeoff also includes that power taking lock unit, described power taking lock unit are arranged to optionally synchronize described power take-off gear and described power taking axle.

35. dumpers according to claim 34, it is characterised in that the plurality of power transmission shaft includes:

First axle, described first axle is fixed with input gear, and described first axle is connected with described motor output shaft；

Second axle, described second axle is fixed with idle pulley, and described idle pulley engages with described input gear；

3rd axle, described 3rd axle includes the first shaft part and the second shaft part being coaxially disposed, described second shaft part is arranged to optionally engage with described first shaft part, it is fixed with the first gear on described first shaft part, described first gear engages with described idle pulley, and described second shaft part is set with multiple gear driven gear；

4th axle, described 4th axle is fixed with the second gear and multiple gear driving gear, and described second gear engages with described first gear, and multiple described gear driving gears engage correspondingly with multiple described gear driven gears；

Wherein, described first axle, described input gear, described second axle, described idle pulley constitute described transmission power input unit；Described 3rd axle, described first gear, described 4th axle, described second gear, multiple described gear driving gear and multiple described gear driven gear constitute described transmission power output unit.

36. dumpers according to claim 35, it is characterised in that the plurality of gear driven gear includes a gear driven gear, two gear driven gears and three gear driven gears；

The plurality of gear driving gear includes the two gear driving gears that the gear driving gear engaged with a described gear driven gear engages and the three gear driving gears engaged with described three gear driven gears with described two gear driven gears；

Described transmission power output unit also includes:

One or four gear lock units, described one or four gear lock units are arranged to optionally in described first shaft part and a described gear driven gear be engaged with described second shaft part；

Two or three gear lock units, described two or three gear lock units are arranged to optionally in described two gear driven gears and described three gear driven gears be engaged with described second shaft part.

37. dumpers according to claim 36, it is characterized in that, being further fixed on output gear on described second shaft part, described output gear keeps off between driven gear and described two gear driven gears described one, and the differential mechanism driven gear that described output gear is suitable to described differential mechanism engages.

38. dumpers according to claim 35, it is characterised in that described power take-off gear and described second direct geared engaged transmission.

39. dumpers according to claim 35, it is characterised in that described first shaft part is bearing on described case of transmission, one end of close described first shaft part of described second shaft part is bearing on described first shaft part.

40. dumpers according to claim 35, it is characterised in that described input gear, described idle pulley, described first gear, described second gear, multiple described gear driving gear and multiple described gear driven gear are angular gear.

41. dumpers according to claim 35, it is characterised in that described first axle is connected by spline structure or shaft coupling with the motor output shaft of described power motor.

42. according to the dumper according to any one of claim 1-19, it is characterised in that described electric power assembly also includes that electro-hydraulic gearshift performs module, and described electro-hydraulic gearshift performs module and is used for controlling described variator and being arranged on described case of transmission.

43. according to the dumper according to any one of claim 1-19, it is characterised in that described suspension arrangement is connected between one end away from described axle case assy of described case of transmission and described vehicle frame.

44. dumpers according to claim 42, it is characterised in that described suspension arrangement includes two vibroshocks, two described vibroshocks are symmetricly set on the left and right sides of described case of transmission.