CN103832272A - Intermediate support assembly of heavy vehicle drive shaft - Google Patents
Intermediate support assembly of heavy vehicle drive shaft Download PDFInfo
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- CN103832272A CN103832272A CN201410087527.2A CN201410087527A CN103832272A CN 103832272 A CN103832272 A CN 103832272A CN 201410087527 A CN201410087527 A CN 201410087527A CN 103832272 A CN103832272 A CN 103832272A
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- support assembly
- inner frame
- bearing
- absorbing pad
- rubber shock
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Abstract
The invention relates to an intermediate support assembly of a heavy vehicle drive shaft. A bearing is assembled in an inner frame through clamp springs on two sides, sealing rings are arranged on two sides of the bearing, the inner frame is externally vulcanized with an outer cover into a whole through a rubber damping pad, the rubber damping pad is hollowed out internally to form an 'n'-shaped damping groove I which forms a semi-surrounded structure, the rubber damping pad on the upper portion of the inner frame and the inner frame are both covered in an 'n'-shaped empty space, clearances are formed at two side edges of the inner frame, and the lower portion of the rubber damping pad and the inner bottom of the outer cover are connected to form a connecting rib. After the assembly is subjected to complete vehicle trial assembly, the 'n'-shaped semi-surrounded structure of the rubber damping pad can absorb large axial movement of the intermediate support assembly, the angle of the intermediate support assembly is radially adjustable, the radial direction of the intermediate support assembly is ensured to be perpendicular to the axial direction of a center line of the drive shaft, and the intermediate support assembly is simple and feasible and remarkable in benefit, and has promotional value in the automobile industry.
Description
Technical field
The present invention relates to the running part of automobile, specifically heavy goods vehicles transmission shaft center support assembly.
Background technology
Present whole commercial vehicle market is towards high precision, high-speed future development, and driving-shaft assembly, as total member of transferring power, is connected between change speed gear box and back axle, must be the in the situation that of High Rotation Speed transmitting torque reliably.In the time that vehicle complete vehicle designs, for fear of causing resonance, noise decrease, is divided into multistage by driving-shaft assembly.Center support general assembly is on tween drive spindle and support assembly, and it is arranged on vehicle frame, should be able to compensate transmission shaft installation error and adaptation travel in because play and the vehicle frame of the driving engine of elastic mounting are out of shape the displacement causing.
Existing driving-shaft assembly is in the time assembling on car load, in the time of car load startup and emergency brake, driving-shaft assembly has axial reciprocating frequently to move, can reach ± 10mm of scope, former center support assembly is realized moving axially of driving-shaft assembly by bearing outside diameter (or internal diameter) axial slip on the part of assembling, bearing just must be gapped at external diameter (or internal diameter) with the part of assembling like this, and bearing hardness is higher, when driving-shaft assembly high-speed operation, especially heavy goods vehicles driving-shaft assembly, weight is heavier, the centnifugal force producing is larger, the part of the upper assembling of bearing and external diameter (or internal diameter) is under continuous frictional slip, the wearing and tearing of the relative slippage part contacting with bearing are accelerated, bearing radial gap strengthens, car load is in the time of high-speed cruising, center support assembly bearing abnormal noise, and the distribution of bearing internal load is worsened, shorten bearing life, affected by the manufacturing errors of manufacturing errors, driving-shaft assembly and the fabrication error of main engine plants' assembling of automobile component vehicle frame, cause line of centers (axis) the direction out of plumb of center support assembly and driving-shaft assembly after tween drive spindle general assembly, in the case, the axially reciprocating must adopt a kind of novel midship mounting assembly can absorb car load operation without move to axial in the situation that at bearing time could meet the operating needs of car load.
Application number: the invention of the 200810016604.X applying date: 2008-05-26, it is a kind of drive axle rolling type radial support apparatus, comprise the ring set being sleeved on transmission shaft, many group rolling assemblies have been periphery between ring set and transmission shaft, rolling assembly ring set and transmission shaft the two one of on affixed, each group rolling assembly comprises bearing seat, is contained in the pivot shaft on bearing seat and is contained in the antifriction-bearing box on pivot shaft.The drive axle rolling type radial support apparatus of said structure, simple in structure due to its rolling assembly, the process-cycle is short, low cost of manufacture, thereby can make this device for the conventional rolling bearing of large specification, its process-cycle is short, low cost of manufacture.
The present invention adopts many group rolling assemblies to realize support radially, and for when car load startup and the emergency brake, driving-shaft assembly has axial reciprocating frequently to move, and cannot eliminate the axial motion of can reach ± 10mm of scope.
Application number: the utility model of 201320242770.8 applyings date: 2013-05-08, its name is called: a kind of transmission shaft support unit.It is mainly to solve the very easily sequence of sanqu songs within a particular musical mode, rubber pad afunction and the problem that causes cardan-shaft suspension unit to damage comprises supporting base, Rubber shock-absorbing pad, block bearing, seal ring of existing block bearing; Supporting base endoporus arranges two jump-ring slots and imperial palace jump ring; In the two sides circumferential end surfaces of Rubber shock-absorbing pad, offer cellular blind hole groove; Two jump-ring slots, little interior jump ring and wavy spring are set on becket endoporus; Block bearing adopts the all-in-one-piece four-point contact ball of Internal and external cycle; The outer lip of seal ring is fixed on the endoporus of becket, and internal diameter sealing lip gently contacts cooperation mutually with block bearing inner ring external diameter.The utlity model has and improve bearing axial carrying capacity, reduce axial impact loading, improve health torque capability, avoid the block bearing sequence of sanqu songs within a particular musical mode, thereby improve the bearing feature in service life, be mainly used in propeller-shaft bearing unit.
In the two sides circumferential end surfaces of the Rubber shock-absorbing pad in the utility model patent, offer cellular blind hole groove; Rubber pad ring damping trough is cellular feature: rubber pad ring intensity is better.Weak point: 1) rigidity is large, the absorbing impact of performance is bad, and easily there is jitter phenomenon in car load; 2) in the time that long-term axial slip amount is larger, easily tear.(as shown in Figure 1)
Application number: the utility model of 201320099317.6 applyings date: 2013-03-05, it is a kind of adjustable automobile transmission shaft midship mounting assembly, comprise outer skeleton, vulcanized rubber mat, bearing seat, radial ball bearing, vulcanized rubber mat is arranged between outer skeleton and bearing seat, outer skeleton, vulcanized rubber mat and bearing seat are overall sulfuration formula structure, radial ball bearing is contained in bearing seat, and bearing seat two ends are provided with oil sealing, and radial ball bearing and bearing seat are bearing fit; Outer skeleton protrudes and adjusts end to both sides, and the adjustment end of both sides is provided with internal point and angular adjustment hole.Adopt the utility model, reduced the driving-shaft assembly inefficacy frequency; Because radial ball bearing can axially horizontally slip in bearing seat, on outer skeleton, there are internal point and angular adjustment hole, and then guarantee that driving-shaft assembly can adjust at midship mounting place radial angle, and axially can horizontally slip, can eliminate radially and the axially accumulated error in car load fitting process.
This utility model China and foreign countries skeleton, vulcanized rubber mat and bearing seat are overall sulfuration formula structure, and rubber pad ring damping trough is staggered dentition formula structure, its feature: rigidity is moderate, and vibration absorption ability is good.Weak point: 1), in the time of assembling heavy goods vehicles driving-shaft assembly, intensity is slightly inadequate, tears phenomenon; 2) in the time of long-term axial slip, the undercapacity between muscle and muscle; 3) due to complex structure, rubber production technology is poor, in the time producing, easily produces the recessive defect of rubber.(as shown in Figure 2); 4) end float misalignment of driving-shaft assembly is realized by the slippage of bearing and bearing seat, for the continuous friction of metal and metal, can produce certain impulsive force, increase the soruce of vibration of driving-shaft assembly, intermetallic frequent relative motion simultaneously, accelerates the wearing and tearing of part, affects the life-span of center support assembly.
Above-mentioned patented product also cannot eliminate vehicle frame, driving-shaft assembly and fitting process in when assembling in radial angle accumulated error, to axial error, what have can not eliminate, or but produces other adverse consequences after eliminating, thereby causes unnecessary trouble.
Summary of the invention
The present invention is in order to eliminate cumulative path in vehicle frame, driving-shaft assembly and fitting process to angular error and to absorb end float misalignment, specially proposes a kind of heavy goods vehicles transmission shaft center support assembly.
For this reason, technical scheme of the present invention is, heavy goods vehicles transmission shaft center support assembly, comprise bearing, bearing is assemblied in inner frame by the jump ring on both sides, two outsides of bearing are provided with seal ring, it is characterized in that: inner frame is outer as a whole by Rubber shock-absorbing pad and outer cover sulfuration, wherein the interior hollow out of Rubber shock-absorbing pad becomes the damping trough one of " several " font, damping trough one forms Semi surrounding type structure, Rubber shock-absorbing pad and the inner frame on inner frame top are all covered in " several " font neutral gear, the dual-side of inner frame forms gap, Rubber shock-absorbing pad bottom is connected and becomes connection muscle with bottom in outer cover.
Improvement to such scheme is: described outer cover is divided into lower bracket and two parts of upper cover plate, and upper cover plate is embedded in lower bracket.
Improvement to such scheme is: below the side of lower bracket and upper cover plate intersection, be respectively provided with two thread bushs, and as a whole with Rubber shock-absorbing pad sulfuration.
Improvement to such scheme is: the horizontal shock-absorbing groove two that is provided with again hollow out on the connection muscle that Rubber shock-absorbing pad bottom is connected with bottom in outer cover.
Improvement to such scheme is: Rubber shock-absorbing pad forms the arc transition that is greater than R10 in " several " font neutral gear.
Beneficial effect:
The present invention in use bearing part is relatively fixing, the center support assembly end float misalignment producing in the time that car load moves is absorbed by " several " font damping trough one of Rubber shock-absorbing pad completely, the axial motion of can reach ± 10mm, have under the prerequisite of rational sound rigidity, there is good vibration absorption ability, good absorbing axial angle is automatically adjustable, is applicable to moment of torsion at 6000N.m-24000 N.m.Connect muscle that intensity is set is better, can bear for a long time larger axial slip amount.
In the middle of making it after assembling car load, support assembly radial direction is vertical with center transmission shaft line axial direction, bearing when driving-shaft assembly High Rotation Speed in midship mounting is in free state, avoid radial force, heating, abnormal sound, shake etc., reduce the driving-shaft assembly inefficacy frequency.
Outer cover is divided into lower bracket and two parts of upper cover plate, and upper cover plate is embedded in lower bracket, is for easy to assembly and have a relative buffering surplus when the polysulphide rubbers cushion blocking, makes it more substantial.
Arranging of thread bush guaranteed that the angle at its middle support assembly place is radially adjustable.
The setting of horizontal shock-absorbing groove two makes the rigidity of bearing assembly for becoming rigidity, has the large damping of low frequency, the variation parameter characteristics of the low rigidity of high frequency, and absorbing is functional.
Rubber shock-absorbing pad forms the arc transition that is greater than R10 in " several " font neutral gear, and transition position circular arc is larger, while producing rubber, has reduced the possibility that produces the recessive defect of rubber.
State after assembling, can eliminate the accumulated error in vehicle frame, driving-shaft assembly and fitting process, and heavy goods vehicles transmission shaft fixed type angle adjustable rigidity-changing center support assembly, by automatically adjusting, can be eliminated the radially accumulated error in car load fitting process.
This assembly is after car load trial assembly, in the time that center support assembly internal bearings is fixed relatively, rely on " several " font Semi surrounding type structure of Rubber shock-absorbing pad can absorb the end float misalignment that center support assembly is larger, and the angle at midship mounting assembly place is radially adjustable, guarantee that midship mounting assembly radial direction is vertical with center transmission shaft line axial direction, bearing when driving-shaft assembly High Rotation Speed in midship mounting is in free state, and then avoid premature wear and the inefficacy of midship mounting assembly, the change stiffness characteristics of " several " font Semi surrounding type of glue cushion blocking makes it to have good vibration absorption ability simultaneously, can effectively alleviate car load jitter phenomenon.
The method is simple, and remarkable benefit has the value of promoting in auto trade.
Accompanying drawing explanation
Fig. 1 is that rubber pad ring damping trough is cellular structural representation.
Fig. 2 is that rubber pad ring damping trough is the structural representation of staggered dentition formula.
Fig. 3 is that master of the present invention looks sectional structure schematic diagram.
Fig. 4 is the left TV structure schematic diagram of Fig. 3.
Fig. 5 is the profile front view of Fig. 3.
Fig. 6 is that A-A in Fig. 4 is to enlarged diagram.
Fig. 7 is that Fig. 3 is assemblied in the schematic diagram on transmission shaft.
In figure, 1 is bearing, the 2nd, and jump ring, the 3rd, inner frame, the 4th, upper cover plate, the 5th, lower bracket, the 6th, seal ring, the 7th, Rubber shock-absorbing pad, the 8th, damping trough one, 9th, damping trough two, 10th, thread bush, the 11st, transmission shaft, R10 is arc transition.
The specific embodiment
The present invention is as shown in Fig. 3,4,5,6.
Heavy goods vehicles transmission shaft center support assembly, comprise bearing 1, the jump ring 2 that bearing logical 1 is crossed both sides is assemblied in inner frame 3, two outsides of bearing 1 are provided with seal ring 6, inner frame 3 is outer as a whole by Rubber shock-absorbing pad 7 and outer cover sulfuration, wherein the interior hollow out of Rubber shock-absorbing pad 7 becomes the damping trough 1 of " several " font, damping trough 1 forms Semi surrounding type structure, Rubber shock-absorbing pad 7 and the inner frame 3 on inner frame 3 tops are all covered in " several " font neutral gear, the dual-side of inner frame 3 forms gap, Rubber shock-absorbing pad 7 bottoms are connected and become connection muscle with bottom in outer cover.
Outer cover is divided into lower bracket 5 and 4 two parts of upper cover plate, and upper cover plate 4 is embedded in lower bracket 5.
The below of the side of lower bracket 5 and upper cover plate 4 intersections is respectively provided with two thread bushs 10, and vulcanizes as a whole with Rubber shock-absorbing pad 7.
On the connection muscle that Rubber shock-absorbing pad 7 bottoms are connected with bottom in outer cover, be provided with the horizontal shock-absorbing groove 29 of hollow out.
Rubber shock-absorbing pad 7 forms the arc transition that is greater than R10 in " several " font neutral gear.
As shown in Figure 7 in use this general assembly on transmission shaft 11.
Bearing 1 external diameter and inner frame 3 adopt jump ring 2 fixing in the axial direction, bearing 1 transmission shaft 11 interference fit, also relatively fixing, so the end float misalignment of center support assembly is realized by Rubber shock-absorbing pad 7: the part that Rubber shock-absorbing pad 7 encases inner frame 3 is not connected with upper cover plate 4, be connected to connect muscle in down either side with lower bracket 5, in the time of center support assembly generation end float misalignment, the damping trough 1 of the Semi surrounding type structure by " several " font both can reduce the resistance of Rubber shock-absorbing pad 7 and lower bracket 5 plaies, connect muscle and guarantee again the intensity between Rubber shock-absorbing pad 7 and lower bracket 5.And the edge of Rubber shock-absorbing pad 7 all adopts the arc transition that is greater than R10, avoid rubber pad ring stress to concentrate breakage occurs.Lower bracket 5 two ends stud with thread bush, integral with the vulcanization of rubber, are above two internal points, below two holes be angular adjustment hole, and then guarantee driving-shaft assembly can adjust at midship mounting place radial angle.
Claims (5)
1. heavy goods vehicles transmission shaft center support assembly, comprise bearing, bearing is assemblied in inner frame by the jump ring on both sides, two outsides of bearing are provided with seal ring, it is characterized in that: inner frame is outer as a whole by Rubber shock-absorbing pad and outer cover sulfuration, wherein the interior hollow out of Rubber shock-absorbing pad becomes the damping trough one of " several " font, damping trough one forms Semi surrounding type structure, Rubber shock-absorbing pad and the inner frame on inner frame top are all covered in " several " font neutral gear, the dual-side of inner frame forms gap, Rubber shock-absorbing pad bottom is connected and becomes connection muscle with bottom in outer cover.
2. heavy goods vehicles transmission shaft center support assembly according to claim 1, is characterized in that: described outer cover is divided into lower bracket and two parts of upper cover plate, and upper cover plate is embedded in lower bracket.
3. heavy goods vehicles transmission shaft center support assembly according to claim 2, is characterized in that: below the side of lower bracket and upper cover plate intersection, be respectively provided with two thread bushs, and as a whole with Rubber shock-absorbing pad sulfuration.
4. according to heavy goods vehicles transmission shaft center support assembly described in claim 1 or 2 or 3, it is characterized in that: the horizontal shock-absorbing groove two that is provided with again hollow out on the connection muscle that Rubber shock-absorbing pad bottom is connected with bottom in outer cover.
5. according to heavy goods vehicles transmission shaft center support assembly described in claim 1 or 2 or 3, it is characterized in that: Rubber shock-absorbing pad forms the arc transition that is greater than R10 in " several " font neutral gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410087527.2A CN103832272A (en) | 2014-03-12 | 2014-03-12 | Intermediate support assembly of heavy vehicle drive shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410087527.2A CN103832272A (en) | 2014-03-12 | 2014-03-12 | Intermediate support assembly of heavy vehicle drive shaft |
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| CN103832272A true CN103832272A (en) | 2014-06-04 |
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| CN201410087527.2A Pending CN103832272A (en) | 2014-03-12 | 2014-03-12 | Intermediate support assembly of heavy vehicle drive shaft |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107284231A (en) * | 2016-03-31 | 2017-10-24 | 上汽通用五菱汽车股份有限公司 | It is a kind of to lift rigidity and the intermediate support structure of damping |
| CN107781295A (en) * | 2016-08-30 | 2018-03-09 | 株洲时代新材料科技股份有限公司 | A kind of propeller shaft for vehicle bearing assembly |
| CN108237909A (en) * | 2016-12-27 | 2018-07-03 | 郑州宇通客车股份有限公司 | Transmission shaft intermediate supports and the vehicle using the intermediate supports |
| CN112989492A (en) * | 2021-03-31 | 2021-06-18 | 华南理工大学 | Optimization method for dynamic characteristics of middle support of automobile transmission shaft |
| CN113733902A (en) * | 2021-09-08 | 2021-12-03 | 万向钱潮股份有限公司 | Inflatable transmission shaft intermediate support device |
| CN113844256A (en) * | 2021-10-14 | 2021-12-28 | 安徽江淮汽车集团股份有限公司 | Passenger car transmission shaft supporting structure |
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| US5161903A (en) * | 1990-10-03 | 1992-11-10 | The Zeller Corporation | Intermediate drive shaft support utilizing a standard bearing |
| CN201034121Y (en) * | 2007-02-02 | 2008-03-12 | 中国第一汽车集团公司 | Porous lateral-binding transmission shaft intermediate supporting structure |
| KR20080047136A (en) * | 2006-11-24 | 2008-05-28 | 현대자동차주식회사 | Propeller-shaft's center bearing structure |
| JP2009073385A (en) * | 2007-09-21 | 2009-04-09 | Nissan Diesel Motor Co Ltd | Supporting structure of propeller shaft |
| CN201890143U (en) * | 2010-11-03 | 2011-07-06 | 北汽福田汽车股份有限公司 | Intermediate support of transmission shaft |
| CN203727171U (en) * | 2014-03-12 | 2014-07-23 | 湖北省丹江口丹传汽车传动轴有限公司 | Intermediate bearing assembly for transmission shaft of heavy duty truck |
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2014
- 2014-03-12 CN CN201410087527.2A patent/CN103832272A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5161903A (en) * | 1990-10-03 | 1992-11-10 | The Zeller Corporation | Intermediate drive shaft support utilizing a standard bearing |
| KR20080047136A (en) * | 2006-11-24 | 2008-05-28 | 현대자동차주식회사 | Propeller-shaft's center bearing structure |
| CN201034121Y (en) * | 2007-02-02 | 2008-03-12 | 中国第一汽车集团公司 | Porous lateral-binding transmission shaft intermediate supporting structure |
| JP2009073385A (en) * | 2007-09-21 | 2009-04-09 | Nissan Diesel Motor Co Ltd | Supporting structure of propeller shaft |
| CN201890143U (en) * | 2010-11-03 | 2011-07-06 | 北汽福田汽车股份有限公司 | Intermediate support of transmission shaft |
| CN203727171U (en) * | 2014-03-12 | 2014-07-23 | 湖北省丹江口丹传汽车传动轴有限公司 | Intermediate bearing assembly for transmission shaft of heavy duty truck |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107284231A (en) * | 2016-03-31 | 2017-10-24 | 上汽通用五菱汽车股份有限公司 | It is a kind of to lift rigidity and the intermediate support structure of damping |
| CN107284231B (en) * | 2016-03-31 | 2023-11-17 | 上汽通用五菱汽车股份有限公司 | Intermediate supporting structure for improving rigidity and absorbing shock |
| CN107781295A (en) * | 2016-08-30 | 2018-03-09 | 株洲时代新材料科技股份有限公司 | A kind of propeller shaft for vehicle bearing assembly |
| CN107781295B (en) * | 2016-08-30 | 2020-07-14 | 株洲时代新材料科技股份有限公司 | Transmission shaft supporting assembly for vehicle |
| CN108237909A (en) * | 2016-12-27 | 2018-07-03 | 郑州宇通客车股份有限公司 | Transmission shaft intermediate supports and the vehicle using the intermediate supports |
| CN108237909B (en) * | 2016-12-27 | 2023-08-18 | 宇通客车股份有限公司 | Transmission shaft intermediate support and vehicle using same |
| CN112989492A (en) * | 2021-03-31 | 2021-06-18 | 华南理工大学 | Optimization method for dynamic characteristics of middle support of automobile transmission shaft |
| CN113733902A (en) * | 2021-09-08 | 2021-12-03 | 万向钱潮股份有限公司 | Inflatable transmission shaft intermediate support device |
| CN113844256A (en) * | 2021-10-14 | 2021-12-28 | 安徽江淮汽车集团股份有限公司 | Passenger car transmission shaft supporting structure |
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Application publication date: 20140604 |