CN204196592U - A kind of vehicle rear-axle housing - Google Patents
A kind of vehicle rear-axle housing Download PDFInfo
- Publication number
- CN204196592U CN204196592U CN201420567387.4U CN201420567387U CN204196592U CN 204196592 U CN204196592 U CN 204196592U CN 201420567387 U CN201420567387 U CN 201420567387U CN 204196592 U CN204196592 U CN 204196592U
- Authority
- CN
- China
- Prior art keywords
- bonnet
- axle
- case assy
- vehicle rear
- axle case
- 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
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Abstract
The utility model relates to a kind of vehicle rear-axle housing, comprises axle case assy and bonnet, and described bonnet is as a whole and be rhombus, and intermediate portion outwardly convex; Described bonnet is connected with described axle case assy, the diagonal line of two less interior angles of described bonnet and the axis being parallel of described axle case assy.Brace panel after circular bonnet of the prior art and two is integrated into the bonnet of a rhombus, decreases the quantity of back axle part, adopt one and strike out the in-use performance that shaped piece substitutes three parts, shorten Fabrication procedure, reduce productive costs; Improve axle housing structure rigidity and X-direction mode of flexural vibration, avoid resonance frequency territory, improve car load NVH quality.
Description
Technical field
The utility model relates to technical field of automobile parts, is specifically related to a kind of vehicle rear-axle housing.
Background technology
As shown in Figure 1, circular bonnet 1 welds with axle case assy 3, makes back axle form hermetically-sealed construction, prevents gear oil from flowing out axle housing, causes gear and bearing lubrication deficiency, occurs ablation, the phenomenons such as clamping stagnation, affect the service life of back axle; Rear brace panel 2 welds with circular bonnet 1, axle case assy 3 respectively, back axle X-direction mode can be strengthened, avoid resonance of the car frequency domain, improve car load NVH (english abbreviation of noise, vibration and sound vibration roughness is a global question of measurement Automobile manufacturing quality) quality.
This scheme needs welding more, need by manual welding, and technological requirement is high, weldquality poor stability, the circular bonnet 1 (circular bonnet wall thickness 2.5mm) of easy through welding, in road examination proof procedure, brace panel 2 and circular bonnet 1 weld seam oil leakage phenomenon after occurring.
Utility model content
In view of above-mentioned the deficiencies in the prior art part, the utility model provides a kind of vehicle rear-axle housing, to solve the problem of bonnet and axle case assy poor sealing performance and weldquality poor stability in prior art.
In order to achieve the above object, the utility model adopts following technical scheme.
A kind of vehicle rear-axle housing, comprises axle case assy and bonnet, and described bonnet is as a whole and be rhombus, and intermediate portion outwardly convex; Described bonnet is connected with described axle case assy, the diagonal line of two less interior angles of described bonnet and the axis being parallel of described axle case assy.The bonnet of described rhombus instead of circular bonnet of the prior art and rear brace panel, and has gathered both functions: sealing and raising X-direction mode of flexural vibration; Avoid circular bonnet in prior art simultaneously and caused the risk of leakage of oil by through welding.
Further, the edge of described bonnet is turnup structure.Adopt turnup structure to be conducive to described bonnet to be connected with described axle case assy.
Further, the flange part of described bonnet is welded by machine with described axle case assy.In this way, the leak tightness of welding can be made more good, avoid the risk of leakage of oil.
Further, the flange width of described bonnet is 4mm-8mm, so that welding, avoids welding heat to affect bonnet described in part.
Further, the wall thickness of described axle case assy is 4mm-6mm.The risk adopting this thickness to reduce described bonnet and described axle case assy through welding in welding process to cause leakage of oil.
Further, the wall thickness of described bonnet and flange is 4mm-6mm, both ensure that stamping forming convenience, also ensure that rigidity and the intensity of described bonnet, meets best cost requirement.
Compared with prior art, the vehicle rear-axle housing that the utility model provides, brace panel after circular bonnet of the prior art and two is integrated into a part, decrease the quantity of back axle part, adopt one and strike out the in-use performance that shaped piece substitutes three parts, shorten Fabrication procedure, reduce productive costs; Improve axle housing structure rigidity and X-direction mode of flexural vibration, avoid resonance frequency territory, improve car load NVH quality; Avoid the circular bonnet of thin-walled in prior art and caused the risk of leakage of oil by through welding; In addition, this rhombus rear cover structure rule, weld seam quantity obviously reduces, and changes robot welding into simultaneously, improve the stability of weldquality by manual welding.
Accompanying drawing explanation
Fig. 1 is the structural representation of vehicle rear-axle housing of the prior art.
The structural representation of the vehicle rear-axle housing that Fig. 2 provides for the utility model.
The bonnet block diagram of the vehicle rear-axle housing that Fig. 3 provides for the utility model.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 2, a kind of vehicle rear-axle housing, comprises axle case assy 3 and bonnet 4, and described bonnet 4 is as a whole and be rhombus, and intermediate portion outwardly convex, define a cavity; Described bonnet 4 is connected with described axle case assy 3, the diagonal line of two less interior angles of described bonnet 4 and the axis being parallel of described axle case assy 3.Described bonnet 4 centre portion is protruding to the reversing sense of axle case assy 3, and this projection is made up of multiple inclined-plane around the curved surface of an outwardly convex of described bonnet center and this curved surface.
As shown in Figure 1, compared with prior art, the bonnet 4 of described rhombus is the part that after circular bonnet 1 of the prior art and two, brace panel 2 is integrated, the bonnet 4 of described rhombus instead of circular bonnet 1, bonnet 4 and the axle case assy 3 of described rhombus are connected to form confined space, thus play sealing function; The bonnet 4 of described rhombus instead of rear brace panel 2 simultaneously, in the bending resistant section coefficient ratio prior art of the X-direction of the bonnet 4 of described rhombus, three welded coefficients of framing member are large, so rigidity is large, improve mode of flexural vibration, avoid resonance frequency territory simultaneously, improve the NVH quality of car load, it also avoid and occur that in prior art, circular cover 1 is caused the risk of leakage of oil by through welding.
As shown in Figure 2 and Figure 3, preferably, the edge of described bonnet 4 is flange 5 structure.Adopt flange 5 structure to be conducive to described bonnet 4 to be connected with described axle case assy 3.
In actual production process, due to the poor stability of human weld's weldquality, so in the present embodiment, flange 5 part of described bonnet 4 is welded by machine with described axle case assy 3.Because bonnet 4 tactical rule of the rhombus that the utility model provides, weld seam quantity also reduces, so preferably adopt robot welding in this embodiment, improves the stability of weldquality, guarantees the quality sealed.
For the ease of welding and cost-saving, the width of the flange 5 of described bonnet 4 can be 4mm-8mm, and flange 5 width of described bonnet 4 is preferably 6mm in the present embodiment.Adopt this width that machine can be made to weld comparatively convenient, also can avoid bonnet 4 described in the heat effects of welding simultaneously, make it be out of shape or occur damage.
The wall thickness of described axle case assy (3) can be 4mm-6mm, may by axle case assy 3 through welding when considering that bonnet 4 welds with axle case assy 3, cause leakage of oil, in the present embodiment, the wall thickness of axle case assy 3 is preferably designed to 5mm, and when greatly reducing welding, through welding causes the risk of leakage of oil.In addition, described bonnet (4) all can be 4mm-6mm with the wall thickness of flange (5), in the present embodiment, described bonnet 4 is preferably all designed to 5mm with the wall thickness of flange 5, both ensure that stamping forming convenience, also ensure that rigidity and the intensity of described bonnet 4, meet best cost requirement.
In sum, compared with prior art, the vehicle rear-axle housing that the utility model provides, brace panel 2 after circular bonnet 1 of the prior art and two is integrated into the bonnet 4 of a rhombus, decrease the quantity of back axle part, adopt one and strike out the in-use performance that shaped piece substitutes three parts, shorten Fabrication procedure, reduce productive costs; Improve axle housing structure rigidity and X-direction mode of flexural vibration, avoid resonance frequency territory, improve car load NVH quality; Avoid the circular bonnet 1 of thin-walled in prior art and caused the risk of leakage of oil by through welding; In addition, this rhombus bonnet 4 tactical rule, weld seam quantity obviously reduces, and changes robot welding into simultaneously, improve the stability of weldquality by manual welding.
Above content is in conjunction with concrete preferred implementation to the further description done by the utility model, can not assert that concrete enforcement of the present utility model is only limited to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. a vehicle rear-axle housing, is characterized in that, comprises axle case assy (3) and bonnet (4), and described bonnet (4) is as a whole and be rhombus, and intermediate portion outwardly convex; Described bonnet (4) is connected with described axle case assy (3), the diagonal line of two less interior angles of described bonnet (4) and the axis being parallel of described axle case assy (3).
2. vehicle rear-axle housing according to claim 1, is characterized in that, the edge of described bonnet (4) is flange (5) structure.
3. vehicle rear-axle housing according to claim 2, is characterized in that, flange (5) part of described bonnet (4) is welded by machine with described axle case assy (3).
4., according to the arbitrary described vehicle rear-axle housing of Claims 2 or 3, it is characterized in that, flange (5) width of described bonnet (4) is 4mm-8mm.
5. vehicle rear-axle housing according to claim 1, is characterized in that, the wall thickness of described axle case assy (3) is 4mm-6mm.
6. vehicle rear-axle housing according to claim 1, is characterized in that, described bonnet (4) is 4mm-6mm with the wall thickness of flange (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420567387.4U CN204196592U (en) | 2014-09-29 | 2014-09-29 | A kind of vehicle rear-axle housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420567387.4U CN204196592U (en) | 2014-09-29 | 2014-09-29 | A kind of vehicle rear-axle housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204196592U true CN204196592U (en) | 2015-03-11 |
Family
ID=52654587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420567387.4U Expired - Fee Related CN204196592U (en) | 2014-09-29 | 2014-09-29 | A kind of vehicle rear-axle housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204196592U (en) |
Cited By (2)
| 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 |
| CN106240235A (en) * | 2016-08-18 | 2016-12-21 | 山东杰达机械工业有限公司 | A kind of automobile axle housing and manufacture method thereof |
-
2014
- 2014-09-29 CN CN201420567387.4U patent/CN204196592U/en not_active Expired - Fee Related
Cited By (2)
| 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 |
| CN106240235A (en) * | 2016-08-18 | 2016-12-21 | 山东杰达机械工业有限公司 | A kind of automobile axle housing and manufacture method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20200929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |