CN207510220U - A kind of 2AMT electric axles assembly - Google Patents

Abstract

A kind of entitled 2AMT electric axles assembly of the utility model.Belong to field of automobile.It mainly solves the problems, such as that existing electric axle assembly is inefficient longer with traditional structure transmission chain there are driving motor.It is mainly characterized by：Including driving motor, differential mechanism, two shift transmissions, axle housing, wheel end semiaxis and wheel end；Two shift transmission is located in axle housing, and two shift transmissions coordinate with differential mechanism；The output terminal of the driving motor is the axocoel gear shaft of translator output gear, is connect with differential mechanism；The wheel end semiaxis is passed through out of gear shaft axocoel, and differential mechanism, wheel end retarder and wheel end are sequentially connected；Driving motor output shaft is in wheel end semiaxis on same axis, and the jackshaft with two shift transmissions forms parallel axle construction.The utility model has the characteristics that driving motor is made to be maintained at efficiency operation section, reduces energy consumption and reduce occupancy compartment passenger space, is mainly used for the 2AMT electric axle assemblies of pure electric automobile Deep integrating.

Description

A kind of 2AMT electric axles assembly

Technical field

The utility model belongs to field of automobile, and in particular to a kind of for pure electric automobile Deep integrating 2AMT electric axle assemblies.

Background technology

At present, most pure electric automobiles use the power transmission arrangment of traditional combustion engine automobile, including driving electricity Machine, transmission shaft, retarder/differential assembly, axle half shafts and wheel end.Since retarder fixed speed ratio will to driving motor performance It asks higher, driving motor is needed to have more wide in range efficiency operation section and keeps higher peak efficiency.Beyond high efficiency Operation interval driving motor causes energy waste more, this adversely affects the course continuation mileage of vehicle, is also selected for driving motor Type and cost control bring difficulty.Traditional structure transmission chain is longer simultaneously causes transmission efficiency that larger and each parts body is lost Product occupies spacial influence compartment passenger's handling capacity of passengers of partial automobile and battery arrangement spacial influence vehicle continual mileage compared with conference.

Invention content

In order to overcome the deficiencies of the prior art, the purpose of this utility model is to provide a kind of two gears that will be integrated with differential mechanism Speed changer and tradition machinery vehicle bridge are an electric axle assembly by Deep integrating.Due to being integrated with two shift transmissions, vehicle Traveling can make driving motor be operated in efficiency operation section in the case where requiring speed, improve driving motor efficiency, reduce Energy consumption, traveling and overgear are enough competent most cities traffic, while such compact structure arrangement can shorten biography Dynamic chain improves efficiency, promotes compartment passenger capacity and increases the battery capacity in compartment, so as to reduce unit mounted mass energy expenditure Amount.

To achieve the above object, the utility model uses following technical solution：A kind of 2AMT electric axles assembly, packet Include driving motor, differential mechanism, axle housing, wheel end semiaxis and wheel end, it is characterised in that：Two shift transmissions are further included, two gear becomes Fast device is located in axle housing, and two shift transmissions coordinate with differential mechanism；The output terminal of the driving motor is translator output gear Axocoel gear shaft, connect with differential mechanism；It is described wheel end semiaxis passed through out of gear shaft axocoel, by differential mechanism, wheel end retarder and Wheel end is sequentially connected；Driving motor output shaft is in wheel end semiaxis on same axis, and the jackshaft with two shift transmissions forms Parallel axle construction.

Two shift transmissions described in the technical solution of the utility model include jackshaft and on jackshafts Countershaft-gear, two gear gears；Differential mechanism includes the gear on gear shaft, takes turns the first driven gear on the semiaxis of end, combines Set and the second driven gear；Countershaft-gear coordinates with the gear on gear shaft, two gear gears and the first driven gear and second Driven gear coordinates.

Include bearing saddle bore on axle housing described in the technical solution of the utility model, kept off and become by bearings two Fast device and differential mechanism；Driving motor is connected with axle housing, forms common bearing structure.

Bearing saddle bore described in the technical solution of the utility model includes the bearing of two shift transmission housing parts Bore and the bearing saddle bore on axle housing central axes；Wherein, the bearing saddle bore of two shift transmission housing parts supports two respectively Shift transmission guide bearing, head bearing and tail bearing, play a supporting role to transmission assembly；Axis on axle housing central axes Bearing hole supports differential mechanism bearings at both ends, plays a supporting role to differential mechanism.

Power transmission arrangment of the utility model based on existing pure electric automobile, by two shift transmissions and tradition machinery vehicle Bridge is an electric axle assembly by Deep integrating, and two shift transmission self shifter are realized by automatically controlled gearshift execution unit； Transmission shaft is eliminated simultaneously, and power is directly inputted to wheel end by semiaxis.

Description of the drawings

Fig. 1 is the utility model pure electric vehicle vehicle bridge structure diagram.

In figure：1. driving motor；2. liang shift transmission；3. differential mechanism；4. take turns end semiaxis；5. axle housing；6. motor Output gear；7. countershaft-gear；8. jackshaft；9. liang gear gear；10. the first driven gear；11. combined cover；12. Poor shell；13. the second driven gear.

Specific embodiment

As shown in Figure 1, a kind of 2AMT electric axles assembly of the utility model keeps off speed change by driving motor 1, differential mechanism 3, two Device 2, axle housing 5, wheel end semiaxis 4 and wheel end composition.Wherein, two shift transmissions 2 are located in axle housing 5, two shift transmissions 2 and differential mechanism 3 cooperations.Two shift transmissions 2 include jackshaft 8 and the countershaft-gear 7, two on jackshaft 8 keeps off gear 9, jackshaft tooth Wheel 7 is close to 1 side of driving motor.Differential mechanism 3 includes the gear on gear shaft, takes turns the first driven gear 10, knot on end semiaxis 4 11 and second driven gear 13 of trap.The output terminal of driving motor 1 is the axocoel gear shaft of translator output gear 6, with differential Device 3 connects.Wheel end semiaxis 4 is passed through out of gear shaft axocoel, and differential mechanism 3 and wheel end are sequentially connected.1 output shaft of driving motor with Wheel end semiaxis 4 is on same axis, and the jackshaft 8 with two shift transmissions 2 forms parallel axle construction.Countershaft-gear 7 and tooth Gear cooperation on wheel shaft, motor output gear 6 drive countershaft-gear 7 to impart power to 8 liang of jackshaft gear gears 9 and the One driven gear 10 and the second driven gear 13 coordinate, and complete two gear gearshifts.Include bearing saddle bore on axle housing 5, pass through bearing branch Support two shift transmissions 2 and differential mechanism 3.Driving motor 1 is connected with axle housing 5, forms common bearing structure.Bearing saddle bore includes two gears The bearing saddle bore of transmission case body portion and the bearing saddle bore on axle housing central axes；Wherein, two shift transmission housing parts Bearing saddle bore support two shift transmission guide bearings, head bearing and tail bearing respectively, play a supporting role to transmission assembly； Bearing saddle bore support differential mechanism bearings at both ends on axle housing central axes, plays a supporting role to differential mechanism.Electronic gearshift is held Row mechanism drives shift fork to complete overgear gear selecting when making combination, and combined cover 11 is by 12 knot of the first driven gear 10 and poor shell at this time It closes synchronous rotary band driving wheel end semiaxis 4 and power is transmitted to wheel end, while differential mechanism is transmitted power by another wheel end semiaxis Opposite wheel end.When combined cover 11, which moves to right end, to be combined with the second driven gear 13, traveling shelves gear selecting is completed, is combined at this time Second driven gear 13 is combined synchronous rotary band driving wheel end semiaxis 4 with poor shell 12 and power is transmitted to wheel end, the same time difference by set 11 The opposite wheel end that fast device is transmitted power by another wheel end semiaxis.Axle housing 5 includes bearing saddle bore, is supported and subtracted respectively by bearing Fast device and differential mechanism.

The utility model pure electric vehicle vehicle bridge driving unit assembly incorporates tradition machinery in traditional pure electric vehicle driving unit The function of vehicle bridge, and structurally and functionally instead of them, and two shift transmissions are integrated in vehicle bridge, realize electric drive Self shifter.Two shift transmissions 2 are installed in axle housing 5 nearly motor side to integrate with differential mechanism 3, the power of driving motor 1 passes through Motor output gear 6, speed changer differential assembly, wheel end semiaxis 4 are input to two side wheel ends, eliminate bevel gear and cause power Input and output side is located at same axis, therefore the steady efficiency of power output is higher.Using two-speed automatic transmission, make driving electric Machine is maintained at efficiency operation section, reduces energy consumption.Cancelling transmission shaft reduces number of parts so that its compact-sized weight Mitigate, increase compartment passenger space and battery arrangement space, improve product applicability and competitiveness.

Claims (4)

1. a kind of 2AMT electric axles assembly, including driving motor（1）, differential mechanism（3）, axle housing（5）, wheel end semiaxis（4）And wheel End, it is characterised in that：Further include two shift transmissions（2）；Two shift transmission（2）Positioned at axle housing（5）It is interior, two shift transmissions （2）With differential mechanism（3）Cooperation；The driving motor（1）Output terminal be translator output gear（6）Axocoel gear shaft, with Differential mechanism（3）Connection；The wheel end semiaxis（4）It is passed through out of gear shaft axocoel, by differential mechanism（3）It is sequentially connected with wheel end；It drives Dynamic motor（1）Output shaft and wheel end semiaxis（4）On same axis, with two shift transmissions（2）Jackshaft（8）It forms parallel Axle construction.

2. a kind of 2AMT electric axles assembly according to claim 1, it is characterised in that：Two shift transmissions（2） Including jackshaft（8）And mounted on jackshaft（8）Countershaft-gear（7）, two gear gears（9）；Differential mechanism（3）Including gear shaft On gear, take turns end semiaxis（4）On the first driven gear（10）, combined cover（11）With the second driven gear（13）；Jackshaft Gear（7）Coordinate with the gear on gear shaft, two gear gears（9）With the first driven gear（10）With the second driven gear（13）Match It closes.

3. a kind of 2AMT electric axles assembly according to claim 1 or 2, it is characterised in that：The axle housing（5）Including Bearing saddle bore passes through two shift transmission of bearings（2）And differential mechanism（3）；Driving motor（1）Same axle housing（5）Connection, composition is altogether Same bearing structure.

4. a kind of 2AMT electric axles assembly according to claim 3, it is characterised in that：The bearing saddle bore includes two The bearing saddle bore of shift transmission housing parts and the bearing saddle bore on axle housing central axes；Wherein, two shift transmission housing section The bearing saddle bore being divided to supports two shift transmission guide bearings, head bearing and tail bearing respectively；Bearing on axle housing central axes Bore supports differential mechanism bearings at both ends.