CN208148960U - A kind of internal-expansion type driving axle housing - Google Patents
A kind of internal-expansion type driving axle housing Download PDFInfo
- Publication number
- CN208148960U CN208148960U CN201820400862.7U CN201820400862U CN208148960U CN 208148960 U CN208148960 U CN 208148960U CN 201820400862 U CN201820400862 U CN 201820400862U CN 208148960 U CN208148960 U CN 208148960U
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- Prior art keywords
- axle housing
- shaft portion
- middle piece
- housing middle
- reinforcement part
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Abstract
A kind of internal-expansion type driving axle housing, including axle housing middle piece, first shaft portion, the second shaft portion；Axle housing middle piece, first shaft portion and the second shaft portion are integrally formed；Axle housing middle piece includes opposite two side walls, the both ends of two sidewalls are connected respectively in the inner end of first shaft portion, the opening that the front of axle housing middle piece is provided with and is surrounded by the front end of two sidewalls front end and first shaft portion, the front end of side wall and the front end of first shaft portion are bent to form an extension towards opening inner side, the surface of the extension is shaped on extension towards the reinforcement part for convexing to form an annular on the outside of axle housing middle piece, reinforcement part；The rear portion of axle housing middle piece is provided with a rear cover, and the edge of rear cover is shaped in the rear end of side wall and the rear end of first shaft portion.The utility model is integrally formed an annular reinforcement part in axle housing middle piece opening, improves the intensity of axle housing middle piece opening, eliminates in vehicle travel process because of security risk caused by driving axle housing strength problem.
Description
Technical field
The utility model relates to technical field of vehicle, and in particular to a kind of internal-expansion type driving axle housing.
Background technique
At this stage, the driving axle housing of vehicle includes cast type axle housing, punching welding type axle housing and tube-expanding type axle housing, casting
Formula axle housing generallys use the Chinese lute shaped opening shell and hollow pipe blank of the integrally formed axle housing middle piece of high-strength cast iron, subsequently through
Axle housing finished product is made in multiple tracks machining processes, and consumptive material is more, and processing step is complex.Punching welding type axle housing is by bridge
Shell is divide into upper part and lower part, and after which passes through punch forming, then carries out butt welding, since weld seam is vertical along axle housing
To extension, the stress for welding generation is larger, is easy to lead to workpiece deformation, to influence the integral strength of axle housing and use the longevity
Life.Tube-expanding type axle housing be make the middle section of axle housing by the pipe fitting bulging to an entirety and hollow pipe be integrally formed, and
Manufacturing procedure is simple, and processing efficiency is higher.However, current tube-expanding type axle housing is in use, due to the opening in its middle section
Place（That is the opening of Chinese lute shape shell）Intensity is lower, and there are some potential safety problemss in vehicle travel process.
Utility model content
In view of the deficiencies of the prior art, the purpose of this utility model is intended to provide a kind of internal-expansion type driving axle housing, energy
Increase the intensity of axle housing middle piece opening, enough to evade the security risk in vehicle travel process.
To achieve the above object, the utility model adopts the following technical solution：
A kind of internal-expansion type driving axle housing, including axle housing middle piece, two first axles extended respectively by axle housing middle piece both ends
Portion and two are connected respectively in the second shaft portion of two first shaft portion outboard ends；Axle housing middle piece, first shaft portion and the second shaft portion by
Single pipe fitting is integrally formed by interior swollen mode；Axle housing middle piece includes opposite two side walls, the both ends difference of two sidewalls
It is connected in the inner end of first shaft portion, the front of axle housing middle piece is provided with encloses with the front end by two sidewalls front end and first shaft portion
At opening, the front end of side wall and the front end of first shaft portion be bent to form an extension towards opening inner side, the extension
Surface is shaped on extension towards the reinforcement part for convexing to form an annular on the outside of axle housing middle piece, reinforcement part；In axle housing
The rear portion of section is provided with a rear cover, and the edge of rear cover is shaped in the rear end of side wall and the rear end of first shaft portion.
The section of first shaft portion is rectangle, and the section of the second shaft portion is circle, is arranged between first shaft portion and the second shaft portion
There is a changeover portion.
The height of reinforcement part is 8-12mm.
The beneficial effects of the utility model are：
Compared with the prior art, the internal-expansion type driving axle housing of the utility model, due to axle housing middle piece opening one at
One annular reinforcement part of type, improves the intensity of axle housing middle piece opening, eliminates in vehicle travel process because of drive axle
Security risk caused by shell intensity problem.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is the enlarged view in Fig. 2 at B.
Specific embodiment
In the following, being further described in conjunction with the drawings and specific embodiments to the utility model：
It as shown in Figure 1, 2, 3, is a kind of internal-expansion type driving axle housing of the utility model comprising axle housing middle piece, two the
One axle portion 20 and two the second shaft portions 30, axle housing middle piece 10, first shaft portion 20 and the second shaft portion 30 are passed through by single pipe fitting
Interior swollen mode is integrally formed, specifically, two first shaft portions 20 are extended outwardly by the both ends of axle housing middle piece 10 respectively, two
A the second shaft portion 30 is then to be extended outwardly respectively by the outboard end of two first shaft portions 20, and axle housing middle piece 10 includes two phases
To the side wall 11 of setting, the both ends of the two sidewalls 11 are connected respectively in the inner end of first shaft portion 20, the front of axle housing middle piece 10
It is provided with an opening 12, which is surrounded by the front end of two sidewalls 11 and the front end of first shaft portion 20, also, two sidewalls 11
Front end and first shaft portion 20 front end towards opening 12 inside be bent to form one around and prolonging on the inside of open edge
Extending portion 13 is provided with reinforcement part 14 towards the outside of axle housing middle piece 10 protrusion and in a ring on the surface of extension 13, should add
Strong portion 14 is shaped on extension 13, and particularly in tube expansion by tube expansion mold, being open, 12 edges are applied
Add suitable extruding force, makes reinforcement part 14 and 13 one-pass molding of extension.The rear portion of axle housing middle piece 10 is additionally provided with a rear cover 15,
The edge of the rear cover 15 is shaped in the rear end of side wall 11 and the rear end of first shaft portion 20, in a preferred embodiment, after this
The shape of lid 15 can be a part of a spherical surface, and specific middle section outwardly protrudes, to be suitable for passing inside driving axle housing
The installation of dynamic component.
Compared with the prior art, the internal-expansion type driving axle housing of the utility model, due to axle housing middle piece opening one at
One annular reinforcement part of type, improves the intensity of axle housing middle piece opening, eliminates in vehicle travel process because of drive axle
Security risk caused by shell intensity problem.
In the utility model, the section of first shaft portion 20 is rectangle, and the section of the second shaft portion 30 is circle, first shaft portion 20
A changeover portion 40, the curve smoothing setting of the changeover portion 40 are provided between the second shaft portion 30.
In the utility model, the height of reinforcement part 14 is chosen as 8-12mm, wherein being preferable to provide as 9.5mm.
Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality
Example is applied the utility model is described in detail, those skilled in the art should understand that, it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features, and these
It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (3)
1. a kind of internal-expansion type driving axle housing, which is characterized in that extended respectively by axle housing middle piece both ends including axle housing middle piece, two
First shaft portion and two be connected respectively in the second shaft portion of two first shaft portion outboard ends；Axle housing middle piece, first shaft portion and
Two axle portions are integrally formed by single pipe fitting by interior swollen mode；Axle housing middle piece includes opposite two side walls, two sidewalls
Both ends are connected respectively in the inner end of first shaft portion, and the front of axle housing middle piece is provided with and by two sidewalls front end and first shaft portion
The opening that surrounds of front end, the front end of side wall and the front end of first shaft portion be bent to form an extension towards opening inner side, should
The surface of extension is shaped in extension towards the reinforcement part for convexing to form an annular on the outside of axle housing middle piece, reinforcement part
On；The rear portion of axle housing middle piece is provided with a rear cover, after the edge of rear cover is shaped in rear end and the first shaft portion of side wall
End.
2. internal-expansion type driving axle housing as described in claim 1, which is characterized in that the section of first shaft portion is rectangle, the second axis
The section in portion is circle, and a changeover portion is provided between first shaft portion and the second shaft portion.
3. internal-expansion type driving axle housing as described in claim 1, which is characterized in that the height of reinforcement part is 8-12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820400862.7U CN208148960U (en) | 2018-03-23 | 2018-03-23 | A kind of internal-expansion type driving axle housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820400862.7U CN208148960U (en) | 2018-03-23 | 2018-03-23 | A kind of internal-expansion type driving axle housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208148960U true CN208148960U (en) | 2018-11-27 |
Family
ID=64392874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820400862.7U Active CN208148960U (en) | 2018-03-23 | 2018-03-23 | A kind of internal-expansion type driving axle housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208148960U (en) |
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2018
- 2018-03-23 CN CN201820400862.7U patent/CN208148960U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |