CN203727104U - Automobile and driving axle assembly thereof - Google Patents
Automobile and driving axle assembly thereof Download PDFInfo
- Publication number
- CN203727104U CN203727104U CN201420061836.8U CN201420061836U CN203727104U CN 203727104 U CN203727104 U CN 203727104U CN 201420061836 U CN201420061836 U CN 201420061836U CN 203727104 U CN203727104 U CN 203727104U
- Authority
- CN
- China
- Prior art keywords
- bearing
- axle assembly
- drive axle
- differential
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Retarders (AREA)
Abstract
The utility model discloses an automobile and a driving axle assembly thereof. The driving axle assembly comprises an axle shell, a left bearing cap, a right bearing cap and a bearing base, the bearing base is fixedly connected with the axle shell, the right bearing cap and the left bearing cap, the axle shell is provided with a left positioning surface and a right positioning surface, and the axle shell is abutted to the left side face of the left bearing cap through the left positioning surface and abutted to the right side face of the right bearing cap through the right positioning surface. Compared with the prior art, the positional relations among the axle shell, the left bearing cap and the right bearing cap are limited, an existing cantilever structure of a lug hole portion for mounting a differential bearing is improved into a simple supporting beam structure with two supporting points, the supporting stiffness of the lug hole portion is greatly improved, so that deformation of the lug hole portion of the driving axle assembly in the working process can be decreased, namely, a deviation value between a theory axis and a real axis of a bearing mounting hole is decreased, so that abrasion of the differential bearing is decreased, the service life of the differential bearing is prolonged, and working performances of the driving axle assembly are optimized.
Description
Technical field
The utility model relates to Automobile drive axle assembly technical field, particularly a kind of automobile and drive axle assembly thereof.
Background technology
Drive axle assembly is one of important composition mechanism of automobile, and its effect is by motor torque reduction of speed increment and changes the direction of transfer of torque, realizes both sides wheel differential action simultaneously, ensures that medial and lateral wheel turns to different rotating speeds.
Now introduce the composition of drive axle assembly in conjunction with Fig. 1, drive axle assembly comprises axle housing 01, semiaxis 02 and main reduction gear, wherein, main reduction gear comprises drive bevel gear 031, driven wheel of differential 032, bearing base 033, left bearing lid 034, right bearing lid 035 and differential assembly, drive bevel gear 031 is in transmission connection with bearing base 033 and engages with driven wheel of differential 032, and left bearing lid 034 and right bearing lid 035 are fixedly connected to form left and right earhole structure with bearing base 033.Differential assembly comprises differential gear box 038 and planetary gear mechanism, differential gear box 038 is fixedly connected with driven wheel of differential 032, and be in transmission connection with bearing base 033 by left differential bearing 036 and right differential bearing 037, axle housing 01 cover dress main reduction gear is also fixedly connected with bearing base 033, and semiaxis 02 is fixedly connected with the axle side gear 039 of planetary gear mechanism.For the ease of understanding better the concrete structure of drive axle assembly, please also refer to Fig. 2, the figure shows the decomposition texture schematic diagram of main reduction gear shown in Fig. 1.
The principle of work of said structure drive axle assembly is: drive bevel gear 031 engages with driven wheel of differential 032, the moment of torsion that transmission shaft is passed over slows down to increase and turns round, realize 90 degree commutations simultaneously, then by differential assembly inner planet gear transmission device, moment of torsion is passed to respectively to semiaxis 02, to drive left and right wheels to rotate.
Disassemble main reduction gear after sale and find that two differential bearings all exist eccentric wear phenomenon, differential bearing eccentric wear causes bearing life to reduce and makes the larger noise of generation in drive axle assembly working process.
The analysis showed that, differential bearing eccentric wear is mainly to deform because earhole part is subject to the derivation axial force that axial force, differential bearing predetermincd tension and differential bearing radial weight that the engagement of driving and driven finishing bevel gear cuter produces produce, and causes due to the bearing mounting hole and differential gear box axle journal disalignment of earhole part.Particularly, refer to Fig. 3, the figure shows the sectional structure schematic diagram of the main reduction gear of the assembly of drive axle shown in Fig. 1, wherein, α and β are respectively the theoretical axis L of left and right earhole split bearing mounting hole and the angle of actual axis L '.
In order to address the above problem, currently used scheme is for strengthening thickening earhole portion size, and particularly, as shown in Figure 4, in this figure, solid line and dotted line represent respectively the outer contour that improves front and back earhole part.Although can improve its rigidity by the mode that increases earhole portion size, but owing to being subject to the restriction of arrangement space, it is limited that earhole portion size strengthens thickening condition, and limited rigidity promotes well support ear bore portion stress deformation, therefore, this scheme produces little effect in the time improving differential bearing eccentric wear problem.
In view of this, how actv. reduces differential bearing eccentric wear, to optimize the properties of product of main gearbox assembly, is those skilled in the art's technical matterss urgently to be resolved hurrily.
Utility model content
For above-mentioned defect, the utility model provides a kind of drive axle assembly, to solve the problem of retarder bearing eccentric wear in prior art.On this basis, the utility model also provides a kind of automobile that comprises above-mentioned drive axle assembly.
For solving the problems of the technologies described above, the utility model provides a kind of drive axle assembly, comprise axle housing, left bearing lid, right bearing lid and bearing base, wherein, bearing base is fixedly connected with axle housing, and be fixedly connected with left bearing lid with right bearing lid, axle housing has left locating surface and right locating surface, and axle housing is offseted, is offseted by the right flank of right locating surface and right bearing lid by the left surface of left locating surface and left bearing lid.
The utility model is by limiting the assembly relation of axle housing and left and right bearing cap shim, be used in the earhole part that differential bearing is installed, be improved to the simple beam structure with two strong points by existing cantilever design, greatly improve the support stiffness of earhole part, can reduce like this deflection of drive axle assembly working process middle ear bore portion, the theoretical axis of bearing mounting hole and the departure of actual axis have been reduced, thereby reduced differential bearing abrasion loss, extended its service life, and then optimized drive axle assembly serviceability.
In a preferred version of the present utility model, above-mentioned axle housing has through hole, and wherein, left locating surface and right locating surface are specially the hole wall of through hole.
Be appreciated that, this programme is on axle housing existing structure basis, by processing suitable through hole and adopting the hole wall of through hole to coordinate with bearing cap shim, realize cleverly axle housing and left and right bearing mounts cover allotment of labor's skill, there is processing and the simple feature of assembly technology, thereby can control to the maximum limit axle housing improving cost.
In another preferred version of the present utility model, the axle housing of said structure and left bearing lid and right bearing lid interference fit.This programme is by the assembly technology of interference fit between three, can revise the deflection that earhole part produces in main reduction gear fitting process, the axial force that this deflection is mainly formed by engagement between the predetermincd tension of differential bearing and gear drive middle gear causes, thereby can further reduce the abrasion loss of differential bearing, and then further extend its service life.
Preferably, the magnitude of interference of described axle housing and described left bearing lid and described right bearing lid interference fit is 0～0.03mm.
Preferably, the cross sectional shape of described through hole is circular, and described right flank and described left surface are the arc surface suitable with described hole wall.
Preferably, the hole wall of described through hole comprises at least two planes, and in two described planes, one is left locating surface, and another one is right locating surface, and described right flank and described left surface are plane.
Except above-mentioned drive axle assembly, the utility model also provides a kind of automobile, and this automobile comprises drive axle assembly, and this drive axle assembly is specially said structure.
Be appreciated that because above-mentioned drive axle assembly has above-mentioned technique effect, comprise that the automobile of this drive axle assembly has identical technique effect equally, so do not repeat them here.
Brief description of the drawings
Fig. 1 shows the sectional structure schematic diagram of drive axle assembly;
Fig. 2 shows the decomposition texture schematic diagram of the main reduction gear of the assembly of drive axle shown in Fig. 1;
Fig. 3 shows the sectional structure schematic diagram of main reduction gear shown in Fig. 2;
Fig. 4 shows the structural representation of the part of earhole shown in Fig. 3;
Fig. 5 shows the sectional structure schematic diagram of drive axle assembly the first specific embodiment provided by the utility model;
Fig. 6 shows the plan structure schematic diagram of the assembly of drive axle shown in Fig. 5;
Fig. 7 shows the sectional structure schematic diagram of drive axle assembly the second specific embodiment provided by the utility model;
Fig. 8 shows the plan structure schematic diagram of the assembly of drive axle shown in Fig. 7.
Corresponding relation in Fig. 1 to 4 between Reference numeral and all parts title:
01 axle housing, 02 semiaxis, 031 drive bevel gear, 032 driven wheel of differential, 033 bearing base, 034 left bearing lid, 035 right bearing lid, 036 left differential bearing, 037 have differential bearing, 038 differential gear box, 039 axle side gear.
Corresponding relation in Fig. 5 to 8 between Reference numeral and all parts title:
Bridge 1 shell, 11 through holes, 2 bearing bases, 3 left bearing lids, 4 right bearing lids.
Detailed description of the invention
Core of the present utility model is, a kind of drive axle assembly is provided, by limiting the position relationship of axle housing and left and right bearing cap shim, reduce to install the deflection of the earhole part of differential bearing, thereby reduce the abrasion loss of differential bearing, extend its service life, reduced the noise producing in working process, and then optimized the serviceability of drive axle assembly.On this basis, the utility model also provides a kind of automobile that comprises above-mentioned drive axle assembly.
Now, in conjunction with Figure of description, the detailed description of the invention of drive axle assembly provided by the utility model is described.It should be noted that, the related noun of locality " left side " and " right side " are to set taking accompanying drawing as benchmark herein, are appreciated that the appearance of the above-mentioned noun of locality does not limit protection domain of the present utility model.
Refer to Fig. 5 and Fig. 6, wherein, Fig. 5 shows the sectional structure schematic diagram of drive axle assembly the first specific embodiment provided by the utility model, and Fig. 6 shows the plan structure schematic diagram of the assembly of drive axle shown in Fig. 5.
As shown in Figure 5, the drive axle assembly providing in the present embodiment, comprises axle housing 1, bearing base 2, left bearing lid 3 and right bearing lid 4, wherein, left bearing lid 3 and right bearing lid 4 are symmetrically fixedly connected on the two ends of bearing base 2, shown in axle housing 1 be fixedly connected with bearing base 2.Axle housing 1 has left locating surface and right locating surface, and axle housing 1 is offseted, offseted by the right flank of right locating surface and right bearing lid 4 by the left surface of left locating surface and left bearing lid 3.For the ease of understanding better the concrete structure of drive axle assembly, please also refer to Fig. 6.
Particularly, as shown in Figure 6, axle housing 1 has through hole 11, the cross sectional shape of this through hole 11 is circular, left locating surface and right locating surface are the hole wall of this through hole 11, and correspondingly, the right flank of the left surface of left bearing lid 3 and right bearing lid 4 is the arc surface suitable with this through hole 11 inwalls.
The present embodiment is by limiting the concrete structure of axle housing and left and right bearing cap shim, be used in the earhole part that differential bearing is installed, be improved to the simple beam structure with two strong points by existing cantilever design, greatly improve the support stiffness of earhole part, can reduce like this deflection of drive axle assembly working process middle ear bore portion, the theoretical axis of bearing mounting hole and the departure of actual axis have been reduced, thereby reduced differential bearing abrasion loss, extended its service life, and then optimized drive axle assembly serviceability.
In addition, on axle housing 1 existing structure basis, by processing through hole 11 adopt the hole wall of through hole 11 to coordinate with bearing cap shim, realize cleverly axle housing 1 and left and right bearing mounts cover the relation of joining, there is processing and the simple feature of assembly technology, thereby can control to greatest extent the improving cost of axle housing.
It should be noted that, meeting on function, processing technology and the assembly technology basis coordinating with left and right bearing cap shim by locating surface, the left and right locating surface of axle housing also can be realized by increase the structures such as earthen platform in axle housing.
Next, introduce another specific embodiment of drive axle assembly provided by the utility model in conjunction with Fig. 7 and Fig. 8, wherein, Fig. 7 shows the sectional structure schematic diagram of drive axle assembly the second specific embodiment provided by the utility model, and Fig. 8 shows the plan structure schematic diagram of the assembly of drive axle shown in Fig. 7.
This embodiment is identical with last embodiment basic structure, and distinctive points is, in the latter, the hole wall of through hole 11 comprises at least two planes, in two planes, one is left locating surface, another one is right locating surface, and correspondingly, the right flank of the left surface of left bearing lid 3 and right bearing lid 4 is plane.
In addition, it should be noted that, in above-mentioned two kinds of embodiment, axle housing 1 and left bearing lid 3 and right bearing lid 4 interference fit, its object is, revises by interference fit relation the deflection that earhole part produces in main reduction gear fitting process, and the axial force that this deflection is mainly formed by engagement between the predetermincd tension of differential bearing and gear drive middle gear causes, thereby can further reduce the abrasion loss of differential bearing, and then further extend its service life.
Show through assembling test statistics repeatedly, when the magnitude of interference of interference fit is 0～0.03mm, ensureing, on the basis of the normal work of main gearbox assembly internal gear transmission mechanism, can to reduce to greatest extent the abrasion loss of differential bearing in drive axle assembly working process.
Be appreciated that on the basis requiring at function and the assembly technology of satisfied minimizing differential bearing abrasion loss, axle housing 1 can be by other conventional machineries assembling modes such as free-running fit and transition fit with left and right bearing cap shim.
Except above-mentioned drive axle assembly, the utility model also provides a kind of automobile, comprises drive axle assembly, and drive axle assembly is specially structure as above.The primary functional elements and the principle of work thereof that are appreciated that this automobile of formation are identical with prior art, and those skilled in the art can realize completely by prior art, so do not repeat them here.
The foregoing is only preferred implementation of the present utility model, do not form the restriction to the utility model protection domain.Any any amendment of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in claim protection domain of the present utility model.
Claims (7)
1. a drive axle assembly, comprise axle housing (1), bearing base (2), left bearing lid (3) and right bearing lid (4), described bearing base (2) is fixedly connected with right bearing lid (4) with described left bearing lid (3), and be fixedly connected with described axle housing (1), it is characterized in that, described axle housing (1) has left locating surface and right locating surface, described axle housing (1) offsets by the left surface of described left locating surface and described left bearing lid (3), right flank by described right locating surface and described right bearing lid (4) offsets.
2. drive axle assembly as claimed in claim 1, is characterized in that, described axle housing (1) has through hole (11), and described left locating surface and described right locating surface are specially the hole wall of described through hole (11).
3. drive axle assembly as claimed in claim 2, is characterized in that, described axle housing (1) and described left bearing lid (3) and described right bearing lid (4) interference fit.
4. drive axle assembly as claimed in claim 3, is characterized in that, described axle housing (1) is 0～0.03mm with the magnitude of interference of described left bearing lid (3) and described right bearing lid (4) interference fit.
5. the drive axle assembly as described in any one in claim 2 to 4, is characterized in that, the cross sectional shape of described through hole (11) is circular, and described right flank and described left surface are the arc surface suitable with described hole wall.
6. the drive axle assembly as described in any one in claim 2 to 4, it is characterized in that, the hole wall of described through hole (11) comprises at least two planes, and in two described planes, one is left locating surface, another one is right locating surface, and described right flank and described left surface are plane.
7. an automobile, comprises drive axle assembly, it is characterized in that, described drive axle assembly is specially the drive axle assembly as described in any one in claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420061836.8U CN203727104U (en) | 2014-02-11 | 2014-02-11 | Automobile and driving axle assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420061836.8U CN203727104U (en) | 2014-02-11 | 2014-02-11 | Automobile and driving axle assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203727104U true CN203727104U (en) | 2014-07-23 |
Family
ID=51197206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420061836.8U Expired - Fee Related CN203727104U (en) | 2014-02-11 | 2014-02-11 | Automobile and driving axle assembly thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203727104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103818189A (en) * | 2014-02-11 | 2014-05-28 | 柳州五菱汽车有限责任公司 | Automobile and drive axle assembly thereof |
-
2014
- 2014-02-11 CN CN201420061836.8U patent/CN203727104U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103818189A (en) * | 2014-02-11 | 2014-05-28 | 柳州五菱汽车有限责任公司 | Automobile and drive axle assembly thereof |
| CN103818189B (en) * | 2014-02-11 | 2017-01-25 | 广西汽车集团有限公司 | Automobile and drive axle assembly thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203594767U (en) | Car drive axle main reducer assembly | |
| CN103818189A (en) | Automobile and drive axle assembly thereof | |
| CN104455226A (en) | Three cycloidal gear type RV speed reducer | |
| CN203727104U (en) | Automobile and driving axle assembly thereof | |
| CN203412971U (en) | Connecting structure between speed reducer and motor | |
| CN201972150U (en) | Vibratory hammer with changeable eccentric torque | |
| CN206230515U (en) | A kind of robot rotating base | |
| CN103115113B (en) | Stir speed reducer | |
| CN204664183U (en) | Bearing block assembly and motor | |
| CN104832602A (en) | Power output device of multi-crankshaft cycloid speed reducer | |
| CN201170292Y (en) | Speed reducing mechanism | |
| CN207416444U (en) | Agricultural machine vehicle bridge | |
| CN203114876U (en) | Back end driving crankshaft component of six-cylinder diesel | |
| CN206215932U (en) | A kind of sealing and the good main axle structure of anti-seismic performance | |
| CN204459011U (en) | A kind of compound full-depth tooth drives eccentric active-tooth transmission | |
| CN204942499U (en) | A kind of Light Aluminum Alloy structure RV speed reducer | |
| CN204253583U (en) | Bearing type roll wheel assembly and feedway | |
| CN202597594U (en) | Gearbox for miniature reducing motor | |
| CN202251732U (en) | Planet wheel speed reducer provided with wear-resistant part | |
| CN218480139U (en) | Shaft-mounted speed reducer easy to assemble | |
| CN104653716A (en) | Compound full-tooth driven eccentric movable tooth driving device | |
| CN207814390U (en) | A kind of transmission device for vacuum special-shaped tin seamer | |
| CN104193146A (en) | Transmission mechanism for secondary rollers of glass calender | |
| CN217271695U (en) | Short-wheelbase large-speed-ratio tooth set structure | |
| CN204226565U (en) | Three pieces type cycloid wheel RV retarder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGXI PROVINCE AUTOMOBILE GROUP CO., LTD. Free format text: FORMER NAME: WULING AUTOMOBILE CO., LTD., LIUZHOU |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 545007 Liuzhou Hexi Road, the Guangxi Zhuang Autonomous Region, No. 18 Patentee after: Guangxi company limited of automobile group Patentee after: Liuzhou Wuling Automobile Industry Co., Ltd. Address before: 545007 Liuzhou Hexi Road, the Guangxi Zhuang Autonomous Region, No. 18 Patentee before: Liuzhou Wuling Motors Co., Ltd. Patentee before: Liuzhou Wuling Automobile Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20170211 |