CN204403199U - A kind of internal spherical cage formula constant velocity universal joint - Google Patents
A kind of internal spherical cage formula constant velocity universal joint Download PDFInfo
- Publication number
- CN204403199U CN204403199U CN201420797912.1U CN201420797912U CN204403199U CN 204403199 U CN204403199 U CN 204403199U CN 201420797912 U CN201420797912 U CN 201420797912U CN 204403199 U CN204403199 U CN 204403199U
- Authority
- CN
- China
- Prior art keywords
- raceway groove
- steel ball
- contact
- outer raceway
- star sleeve
- 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 discloses a kind of internal spherical cage formula constant velocity universal joint, it comprises driving shaft, outer race, retainer, steel ball and star sleeve, star sleeve is connected with driving shaft by spline, the outer spherical surface of star sleeve is provided with 6 grooves, form outer raceway groove, described outer raceway groove is made up of more than two sections cambered surfaces of different radii or arc core, during steel ball raceway groove rolling outside, outer raceway groove curved surface forms plural point of contact, namely each section of cambered surface has respectively a point of contact to be connected with steel ball rolling.The outer raceway groove of the utility model internal spherical cage formula constant velocity universal joint passes through the design of two sections of cambered surfaces, because the arc core of cambered surface is different, during steel ball raceway groove rolling outside, outer raceway groove curved surface the point of contact of self-assembling formation will become two point contact by original single-contact, increase the area of contact of steel ball and star sleeve, make star sleeve more wear-resisting, stability gets a promotion, thus greatly improves the whole service life of product.
Description
Technical field
The utility model belongs to rotating shaft and the coupling technical field of transferring rotational motion and moment of torsion, relates to a kind of universal joint, is specifically related to a kind of internal spherical cage formula constant velocity universal joint.
Background technique
Internal spherical cage formula constant velocity universal joint, can change operating angle with constant-speed transmission power and carry out telescopic slide, simultaneously the joint arrangement that parallels to the axis of its working track.Link together with speed changer, by the steel ball of six between outer race and star sleeve by the transmission of power of speed changer in axle, its maximum functional angle is between 20 degree-30 degree, is applicable to the Japanese vehicle of part.
In prior art, internal spherical cage formula constant velocity universal joint mainly comprises driving shaft, outer race, retainer, steel ball and star sleeve, because the reason of processing technique generally can only reach single-contact (as depicted in figs. 1 and 2) between inner race and steel ball, the i.e. one position of the point of contact of steel ball on interior alley raceway groove outside, such structure can make the abrasion of the interior alley of star sleeve and steel ball comparatively large, and star sleeve stability is difficult to ensure.
Model utility content
For deficiency of the prior art, the purpose of this utility model is to provide a kind of internal spherical cage formula constant velocity universal joint.
Technical solution of the present utility model: a kind of internal spherical cage formula constant velocity universal joint, it comprises driving shaft, outer race, retainer, steel ball and star sleeve, star sleeve is connected with driving shaft by spline, the outer spherical surface of star sleeve is provided with 6 grooves, form outer raceway groove, described outer raceway groove is made up of more than two sections cambered surfaces of different radii or arc core, during steel ball raceway groove rolling outside, outer raceway groove curved surface forms plural point of contact, namely each section of cambered surface has respectively a point of contact to be connected with steel ball rolling.
Described outer raceway groove is made up of two sections of cambered surfaces with the different arc core of radius.
Two point of contact that described steel ball and outer raceway groove are formed are 40-45 degree relative to the angle that the steel ball centre of sphere is formed.
The outer raceway groove of the utility model internal spherical cage formula constant velocity universal joint passes through the design of two sections of cambered surfaces, because the arc core of cambered surface is different, during steel ball raceway groove rolling outside, outer raceway groove curved surface the point of contact of self-assembling formation two will become two point contact by original single-contact, increase the area of contact of steel ball and star sleeve, make star sleeve more wear-resisting, stability gets a promotion, thus greatly improves the whole service life of product.
Accompanying drawing explanation
Fig. 1 is the structural representation of star sleeve and steel ball in prior art;
Fig. 2 is the enlarged section of Fig. 1
Fig. 3 is the utility model embodiment 1 structural representation;
Fig. 4 is the structural representation of the utility model embodiment 1 star sleeve and steel ball;
Fig. 5 is the enlarged section of Fig. 4.
In figure: driving shaft 1, outer race 2, retainer 3, steel ball 4, cambered surface 4-1,4-2, star sleeve 5.
Embodiment
The utility model specifically can be implemented by disclosed technology, can be conducted further description by the following examples to the utility model, but scope of the present utility model is not limited to following embodiment.
Embodiment: as Figure 1-5, a kind of internal spherical cage formula constant velocity universal joint, it comprises driving shaft 1, outer race 2, retainer 3, steel ball 4 and star sleeve 5, star sleeve 5 is connected with driving shaft 1 by spline, and the outer spherical surface of star sleeve 5 is provided with 6 grooves, forms outer raceway groove, described outer raceway groove is made up of more than two sections cambered surfaces of different radii or arc core, during steel ball raceway groove rolling outside, outer raceway groove curved surface forms plural point of contact, namely each section of cambered surface has respectively a point of contact to be connected with steel ball rolling.
Described outer raceway groove is made up of two sections of cambered surfaces with the different arc core of radius.
Two point of contact that described steel ball and outer raceway groove are formed are 40-45 degree relative to the angle that the steel ball centre of sphere is formed.
Outer raceway groove adopts two ends section cambered surface design, and because the arc core of cambered surface 4-1,4-2 is different, steel ball 4 is when raceway groove rolls outside, and outer raceway groove curved surface will the point of contact of self-assembling formation two; Be mainly used in solving the limitation because of processing technique, be difficult to reach groove completely concentric with steel ball, cause groove and the actual single-contact of steel ball, the interior alley of star sleeve and the abrasion of steel ball increase, and star sleeve stability is difficult to the problem ensured.
Also can adopt Multi-contact in other embodiment, be generally the Multi-contact of symmetric design.
Claims (3)
1. an internal spherical cage formula constant velocity universal joint, it comprises driving shaft (1), outer race (2), retainer (3), steel ball (4) and star sleeve (5), star sleeve (5) is connected with driving shaft (1) by spline, the outer spherical surface of star sleeve (5) is provided with 6 grooves, form outer raceway groove, it is characterized in that: described outer raceway groove is made up of more than two sections cambered surfaces of different radii or arc core, during steel ball raceway groove rolling outside, outer raceway groove curved surface forms plural point of contact, namely each section of cambered surface has respectively a point of contact to be connected with steel ball rolling.
2. internal spherical cage formula constant velocity universal joint according to claim 1, is characterized in that: described outer raceway groove is made up of two sections of cambered surfaces with the different arc core of radius.
3. internal spherical cage formula constant velocity universal joint according to claim 2, is characterized in that: two point of contact that described steel ball and outer raceway groove are formed are 40-45 degree relative to the angle that the steel ball centre of sphere is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420797912.1U CN204403199U (en) | 2014-12-17 | 2014-12-17 | A kind of internal spherical cage formula constant velocity universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420797912.1U CN204403199U (en) | 2014-12-17 | 2014-12-17 | A kind of internal spherical cage formula constant velocity universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204403199U true CN204403199U (en) | 2015-06-17 |
Family
ID=53427062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420797912.1U Expired - Fee Related CN204403199U (en) | 2014-12-17 | 2014-12-17 | A kind of internal spherical cage formula constant velocity universal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204403199U (en) |
-
2014
- 2014-12-17 CN CN201420797912.1U patent/CN204403199U/en not_active Expired - Fee Related
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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: 20150617 Termination date: 20151217 |
|
| EXPY | Termination of patent right or utility model |