CN202557219U - Axle casing middle section reinforcing plate structure for automobile rear axle - Google Patents
Axle casing middle section reinforcing plate structure for automobile rear axle Download PDFInfo
- Publication number
- CN202557219U CN202557219U CN2012201958480U CN201220195848U CN202557219U CN 202557219 U CN202557219 U CN 202557219U CN 2012201958480 U CN2012201958480 U CN 2012201958480U CN 201220195848 U CN201220195848 U CN 201220195848U CN 202557219 U CN202557219 U CN 202557219U
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- axle
- rear axle
- brace panel
- reinforcing plates
- middle section
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Abstract
The utility model discloses an axle casing middle section reinforcing plate structure for an automobile rear axle. The axle casing middle section reinforcing plate structure can reduce vibration and noise of the rear axle. The structure is that four reinforcing plates are fixedly connected in the axle casing middle section of the rear axle, the reinforcing plates are matched with the size of a space of an inner cavity an axle casing, the reinforcing plates are arranged on the outer side of an axle casing installation ring. Each reinforcing plate is provided with an obtuse bent plate, and a semicircle hole for a rear axle shaft to pass through is arranged on one plate face of the bent plate. Two of the four reinforcing plates are oppositely and symmetrically arranged, the semicircle holes of the upper reinforcing plates and the lower reinforcing plate are opposite and arranged on the outer side of an encircled structure formed by the four reinforcing plates, and a gap more than 4mm is reserved between the upper reinforcing plates and the lower reinforcing plates. Therefore, strength and rigidity of the rear axle casing and the rear axle are improved, deflection of the rear axle is reduced, using work conditions of a bearing of the rear axle shaft are improved, natural vibration frequency of the rear axle casing and the rear axle is changed, external vibrational excitation interference is reduced, vibration and noise of the rear axle are reduced, and the axle casing middle section reinforcing structure is applied to improvement of axle casing structures of various automobile rear axles.
Description
Technical field
The utility model relates to a kind of automobile axle axle housing, especially a kind of automobile axle axle housing stage casing brace panel structure.
Background technology
The automobile drive axle assembly is made up of main reduction gear, diff, semiaxis, universal-joint, axle housing etc. by the car load requirement.Automobile drive axle housing is a comparatively complicated parts of geometric configuration; It is the assembling matrix of main reduction gear, diff, semiaxis, generally adopts three stage structure, is welded through axle housing stage casing, axle tube; Its main function is the supporting vehicle weight; And bear road surface counter-force and the counter torque that transmits by wheel, and pass to vehicle frame through suspension, its performance directly influences the safety and the reliability of transport vehicle.Therefore, automobile drive axle housing should have enough strength and stiffness, and requires to reduce quality to improve the ride comfort of running car as far as possible.
Generally outside the increasing of girth joint has U type brace panel to existing rear axle case in the axle housing stage casing, is used to increase rear axle case intensity.
In the rear-end gear reduction structure, the master subtracts driving gear and propeller shaft couplings, is bearing the moment of torsion that change-speed box passes over; Main subtract that the ingear frequency is called between the driving and driven gear tooth " nibbling frequently ", can resonate when close, cause rear-axle whine when nibbling frequently natural frequency with the back bridge construction.
Further raising along with the vibration and noise reducing requirement; In order to reduce the influence of back axle to the car load vibration noise, need angle theoretical from vibration and mechanics of elasticity carry out the rear-axle casing design improvement, cater to the car load vibration performance; Improve the back axle vibrational excitation, to improve the riding traveling comfort of car load.
The utility model content
For the brace panel structure that overcomes existing rear axle case stage casing in the deficiency aspect the vibration and noise reducing, the utility model technical matters to be solved provides a kind of automobile axle axle housing stage casing brace panel structure that can reduce back axle vibration and noise.
The utility model solves the technical scheme that its technical matters adopted: automobile axle axle housing stage casing brace panel structure; In the rear axle case stage casing internal fixation be connected with four adaptive and be positioned at the brace panel that axle housing is installed the circle outside with axle housing intracavity space size; Brace panel is the bent plate with an obtuse angle bending; One of them plate face of bent plate is provided with the semicircle orifice that supplies rear axle shaft to pass through; These four brace panels in twos relatively and about, symmetric arrangement up and down, the said semicircle orifice of upper and lower brace panel relatively and be positioned at by said four outsides of surrounding structure that brace panel constituted keeps the above gap of 4mm between the upper and lower brace panel.
Said brace panel and axle housing stage casing full weld connect.
The beneficial effect of the utility model is: improved the strength and stiffness of rear-axle casing and back axle, reduced the back axle degree of deflection, improved rear axle shaft bearing applying working condition; Can change the rear-axle casing and the back axle natural frequency of vibration, reduce the external vibration excitation and disturb, reduce back axle vibration and noise, can be used for all kinds of automobile axle axle housing structural development.
Description of drawings
Fig. 1 is the front view of the utility model.
Fig. 2 is the C-C cutaway view of Fig. 1.
Fig. 3 is the front view of brace panel among Fig. 1.
Fig. 4 is the A-A cutaway view of Fig. 3.
Fig. 5 is that the axle of the utility model is surveyed scheme drawing.
Be labeled as among the figure, 1-axle housing stage casing, the 2-brace panel, the 11-axle housing is installed circle, 12-weld seam, 21-semicircle orifice, the bending of 22-obtuse angle, 23-chamfering, 3-gap, 4-and the vertical plane of axle housing semiaxis axial line, 5-axle housing semiaxis axial line.The width of B-brace panel, the height of H-brace panel, the thickness of δ-brace panel, α-obtuse angle angle bending, the axial installation site of L-size.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4; The automobile axle axle housing stage casing brace panel structure of the utility model be in the rear axle case stage casing 1 internal fixation be connected with four adaptive and be positioned at the brace panel 2 that axle housing is installed circular arc 11 outsides with axle housing intracavity space size; Brace panel 2 is for having the bent plate of an obtuse angle bending 22; One of them plate face of bent plate is provided with the semicircle orifice 21 that supplies rear axle shaft to pass through; These four brace panels 2 in twos relatively and about, symmetric arrangement up and down, the said semicircle orifice 21 of upper and lower brace panel 2 relatively and be positioned at by said four outsides of surrounding structure that brace panel 2 is constituted keeps the above gap 3 of 4mm between the upper and lower brace panel 2.Said structure has improved existing axle housing brace panel structure; Make its except the strength and stiffness that can improve rear-axle casing and back axle, reduce the back axle degree of deflection, improve the rear axle shaft bearing applying working condition; Can also change the rear-axle casing and the back axle natural frequency of vibration, make the back axle natural frequency avoid automobile and often nibble frequent section under the mode of operation, avoid taking place resonance effect; Reduce the external vibration excitation and disturb, thereby reduce back axle vibration and noise.
Particularly; The diameter of the semicircle orifice 21 of brace panel 2 should be suitable with the corresponding size of rear axle shaft; According to axle housing size, and the variation of axial installation site size L; The angle [alpha] respective change of the width B of brace panel 2, height H, obtuse angle bending 22 is considered the material and the thickness δ factor of brace panel 2 again, is variable with the relevant parameter of above-mentioned parameter L, B, H, α, δ and material; With being minimised as optimization aim and can calculating preferable variable-value of vibration, noise, thereby accomplish design to concrete size according to limited element analysis technique.In addition, brace panel 2 is not provided with on another plate face of semicircle orifice 21 and can basis with the needs of axle housing form fit chamfering 23 be set, and the concrete size of chamfering 23 also can be used as variable and includes aforesaid computation optimization in.
For guaranteeing reliable connection, said brace panel 2 should connect with axle housing stage casing 1 full weld.
Embodiment:
Like Fig. 1～shown in Figure 4, certain is fully loaded to be to have abandoned original outer plate structure of strengthening in the back axle of 1.4 tons of automobiles, adopts the automobile axle axle housing stage casing brace panel structure of the utility model; Brace panel 2 adopts Q235; Take the pressing and bending forming process, the width B of brace panel 2 is 5mm, and height H is 61mm; Axially installation site size L is 130mm, and the angle [alpha] of obtuse angle bending 22 is 145 °.Through the CAE finite element analysis, axle housing rigidity is compared with original structure and is improved 10.7%, and simultaneously, car load NVH damping noise reduction test vibration noise is compared with original structure and lowered 10.3%.
Claims (2)
1. automobile axle axle housing stage casing brace panel structure; It is characterized in that: in rear axle case stage casing (1) internal fixation be connected with four adaptive and be positioned at the brace panel (2) that axle housing is installed circular arc (11) outside with axle housing intracavity space size; Brace panel (2) is for having the bent plate of an obtuse angle bending (22); One of them plate face of bent plate is provided with the semicircle orifice (21) that supplies rear axle shaft to pass through; These four brace panels (2) in twos relatively and about, symmetric arrangement up and down, the said semicircle orifice (21) of upper and lower brace panel (2) relatively and be positioned at the outside of surrounding structure that is made up of said four brace panels (2) keeps the above gap (3) of 4mm between the upper and lower brace panel (2).
2. automobile axle axle housing as claimed in claim 1 stage casing brace panel structure is characterized in that: said brace panel (2) connects with axle housing stage casing (1) full weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201958480U CN202557219U (en) | 2012-05-03 | 2012-05-03 | Axle casing middle section reinforcing plate structure for automobile rear axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201958480U CN202557219U (en) | 2012-05-03 | 2012-05-03 | Axle casing middle section reinforcing plate structure for automobile rear axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202557219U true CN202557219U (en) | 2012-11-28 |
Family
ID=47206913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201958480U Expired - Lifetime CN202557219U (en) | 2012-05-03 | 2012-05-03 | Axle casing middle section reinforcing plate structure for automobile rear axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202557219U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104290537A (en) * | 2014-10-28 | 2015-01-21 | 重庆长安汽车股份有限公司 | Axle housing assembly of rear drive axle |
| CN104309409A (en) * | 2014-09-29 | 2015-01-28 | 上汽通用五菱汽车股份有限公司 | Automobile rear axle case |
| CN108081871A (en) * | 2016-11-23 | 2018-05-29 | 仪征跃进车桥有限责任公司 | A kind of automobile rear axle housing |
| CN108317237A (en) * | 2018-01-24 | 2018-07-24 | 广西汽车集团有限公司 | Main gearbox assembly and its speed reducer housing |
| CN108603429A (en) * | 2015-12-10 | 2018-09-28 | 大陆汽车有限公司 | Case system for reducing agent |
-
2012
- 2012-05-03 CN CN2012201958480U patent/CN202557219U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104309409A (en) * | 2014-09-29 | 2015-01-28 | 上汽通用五菱汽车股份有限公司 | Automobile rear axle case |
| CN104290537A (en) * | 2014-10-28 | 2015-01-21 | 重庆长安汽车股份有限公司 | Axle housing assembly of rear drive axle |
| CN108603429A (en) * | 2015-12-10 | 2018-09-28 | 大陆汽车有限公司 | Case system for reducing agent |
| CN108603429B (en) * | 2015-12-10 | 2021-03-05 | 大陆汽车有限公司 | Tank system for reducing agent |
| CN108081871A (en) * | 2016-11-23 | 2018-05-29 | 仪征跃进车桥有限责任公司 | A kind of automobile rear axle housing |
| CN108081871B (en) * | 2016-11-23 | 2020-01-17 | 仪征跃进车桥有限责任公司 | Automobile rear axle housing |
| CN108317237A (en) * | 2018-01-24 | 2018-07-24 | 广西汽车集团有限公司 | Main gearbox assembly and its speed reducer housing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANAN INDUSTRY CO., LTD., SICHUAN PROV. Free format text: FORMER OWNER: JIAN'AN REAR AXLE AUTOMOBILE CO., LTD. CHINA CHANG'AN SICHUAN BRANCH Effective date: 20150702 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150702 Address after: 625000 Ya'an City, Zhejiang Province, the city of Tibet Road No. 139 Patentee after: Jianan Industry Co., Ltd., Sichuan Prov. Address before: 625000 Ya'an City, Zhejiang Province, the city of Tibet Road No. 139 Patentee before: Jian'an Rear Axle Automobile Co., Ltd. China Chang'an Sichuan Branch |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121128 |