CN201236895Y - Crossing-groove rzeppa universal joint - Google Patents
Crossing-groove rzeppa universal joint Download PDFInfo
- Publication number
- CN201236895Y CN201236895Y CNU2008201509860U CN200820150986U CN201236895Y CN 201236895 Y CN201236895 Y CN 201236895Y CN U2008201509860 U CNU2008201509860 U CN U2008201509860U CN 200820150986 U CN200820150986 U CN 200820150986U CN 201236895 Y CN201236895 Y CN 201236895Y
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- CN
- China
- Prior art keywords
- grooves
- eccentric
- star sleeve
- outer race
- universal joint
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- Expired - Fee Related
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Abstract
The utility model relates to a ball-basket universal joint with crossed grooves. The ball-basket universal joint comprises a transmission shaft (1), a bell housing (2), steel balls (3), a retaining ring (4), a star sleeve (5) and a circlip (6); wherein the grooves of the bell housing (2) and the star sleeve (5) are eight, and the quantity of the steel balls in the retaining ring (4) corresponding to the bell housing (2) and the star sleeve (5) is eight; in the eight grooves of the bell housing (2), the centers of four grooves are homocentric with the center of the inner spherical surface, eccentric distances exist between the other four grooves and the center of the inner spherical surface, the homocentric point and the eccentric points are crossed and arranged at equal intervals; in the eight grooves of the star sleeve (5), the centers of four grooves are homocentric with the center of the outer spherical surface, eccentric distances exist between the other four grooves and the center of the outer spherical surface, the homocentric point and the eccentric points are crossed and arranged at equal intervals; the homocentric grooves of the bell housing (2) and the star sleeve (5) are corresponding one by one, and the eccentric grooves thereof are also corresponding one by one; the ball-basket universal joint has the advantages that the bearing capacity can be improved, and the service life can be prolonged.
Description
Technical field
The utility model relates to a kind of center fixation type constant velocity universal joint, relates in particular to channel shape in a kind of this universal joint.
Background technique
Center fixation type constant velocity universal joint is when master and slave moving axis has angular displacement, can transmitting movement and the mechanism of torque.
The structure of rzeppa universal joint of the prior art is that outer race and star sleeve are 6 raceway grooves, and 6 groove curvature centers of outer race and 6 groove curvature centers of star sleeve, be positioned at both sides, Rzeppa type retainer internal and external spherical surfaces center respectively, and throw of eccentric all equates, but such raceway groove is provided with following deficiency:
Outer race and star sleeve all are 6 equally distributed raceway grooves on circumference, and 6 steel ball work are arranged in rzeppa universal joint, do not make full use of enough inner spaces, and bearing stress is lower;
6 groove curvature centers of outer race and star sleeve all overlap, and when the universal joint transfer high torque, Rzeppa type retainer and steel ball can bear sizable stress because of the raceway groove biasing, cause breaking, and have shortened working life.
Summary of the invention
The utility model technical issues that need to address have provided a kind of intersection channel ball cage type universal joint, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: transmission shaft, outer race, steel ball, retainer, star sleeve, jump ring; The raceway groove of described outer race and star sleeve is 8, with steel ball number in outer race and the corresponding retainer of star sleeve be 8; In 8 raceway grooves of described outer race, 4 raceway groove centers are concentric with inner ball surface, and in addition 4 exist throw of eccentric with the inner ball surface center, and intersect the five equilibrium arrangement with one heart with eccentric; In 8 raceway grooves of star sleeve, 4 raceway groove centers and outer spherical surface centres, 4 exist throw of eccentric with outer spherical surface in addition, and intersect the five equilibrium arrangement with one heart with eccentric; Outer race is corresponding one by one with the concentric channel of star sleeve, and eccentric raceway groove is also corresponding one by one.
Compared with prior art, the beneficial effects of the utility model are: because 8 steel balls at universal joint center are set to have only 4 steel balls to enter the symmetry plane of two crossed axis angles by raceway groove control, all the other 4 steel balls by the control of Rzeppa type retainer, rotate in the entire depth of raceway groove; Because of the raceway groove center overlaps with sphere centre, it does not apply any thrust load to the Rzeppa type retainer, is well suited for transmitting torque; Axially angle is made as 20
0, having only four pairs of biasing control raceway grooves, all the other four pairs of raceway groove cross facets also can be controlled maximum axial angle, can improve bearing capacity, increase the service life.
Description of drawings
Fig. 1 is a vertically positive insight structural map of the present utility model;
Fig. 2 is the horizontal section side view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
By Fig. 1, Fig. 2 as seen: the utility model comprises: transmission shaft 1, outer race 2, steel ball 3, retainer 4, star sleeve 5, jump ring 6; The raceway groove of described outer race 2 and star sleeve 5 is 8, with steel ball numbers in outer race 2 and the star sleeve 5 corresponding retainers 4 be 8; In 8 raceway grooves of described outer race 2,4 raceway groove centers are concentric with inner ball surface, and in addition 4 exist throw of eccentric with the inner ball surface center, and intersect the five equilibrium arrangement with one heart with eccentric; In 8 raceway grooves of star sleeve 5,4 raceway groove centers and outer spherical surface centres, 4 exist throw of eccentric with outer spherical surface in addition, and intersect the five equilibrium arrangement with one heart with eccentric; Outer race 2 is corresponding one by one with the concentric channel of star sleeve 5, and eccentric raceway groove is also corresponding one by one.
In Fig. 1, star sleeve 5 is installed in the retainer 4,8 fenestras of 8 raceway groove corresponding retainer 4, and star sleeve 5 and retainer 4 assemblies installed to outer race 2 inner chambers, respectively 8 steel balls 3 are put into respectively in 8 raceway grooves of star sleeve 5 and outer race 2 again.O is the centre of curvature of retainer internal and external spherical surfaces, star sleeve 5 outer spherical surfaces, outer race 2 inner ball surface, also is the centre of curvature of star sleeve 5,24 raceway grooves of outer race wherein; O
1Centre of curvature, O for outer race 2 and 4 raceway grooves
2Centre of curvature for star sleeve 5 and other 4 raceway grooves.According to rzeppa universal joint constant speed principle, throw of eccentric O
1O=O
2O=e, 4 concentric channel are along circumference 4 five equilibriums, 4 eccentric raceway grooves are also along circumference 4 five equilibriums in addition, 8 raceway groove centers are along circumference 8 five equilibriums, transmission shaft 1 connects by spline with star sleeve 5, by jump ring 6 lockings that place transmission shaft 1 jump ring groove, the torque when angular displacement being arranged by star sleeve, outer race raceway groove, Rzeppa type retainer and 8 steel ball transmission.
Claims (1)
1. an intersection channel ball cage type universal joint comprises: transmission shaft (1), outer race (2), steel ball (3), retainer (4), star sleeve (5), jump ring (6); The raceway groove of described outer race (2) and star sleeve (5) is 8, with the corresponding interior steel ball number of retainer (4) of outer race (2) and star sleeve (5) be 8; It is characterized in that: in 8 raceway grooves of described outer race (2), 4 raceway groove centers are concentric with inner ball surface, and in addition 4 exist throw of eccentric with the inner ball surface center, and intersect the five equilibrium arrangement with one heart with eccentric; In 8 raceway grooves of star sleeve (5), 4 raceway groove centers and outer spherical surface centres, 4 exist throw of eccentric with outer spherical surface in addition, and intersect the five equilibrium arrangement with one heart with eccentric; Outer race (2) is corresponding one by one with the concentric channel of star sleeve (5), and eccentric raceway groove is also corresponding one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201509860U CN201236895Y (en) | 2008-07-18 | 2008-07-18 | Crossing-groove rzeppa universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201509860U CN201236895Y (en) | 2008-07-18 | 2008-07-18 | Crossing-groove rzeppa universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201236895Y true CN201236895Y (en) | 2009-05-13 |
Family
ID=40649635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201509860U Expired - Fee Related CN201236895Y (en) | 2008-07-18 | 2008-07-18 | Crossing-groove rzeppa universal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201236895Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806651A (en) * | 2015-05-18 | 2015-07-29 | 上海纳铁福传动系统有限公司 | Fixed type constant-speed universal joint |
| CN112211915A (en) * | 2020-09-28 | 2021-01-12 | 万向钱潮股份有限公司 | Efficient rzeppa constant velocity universal joint |
-
2008
- 2008-07-18 CN CNU2008201509860U patent/CN201236895Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806651A (en) * | 2015-05-18 | 2015-07-29 | 上海纳铁福传动系统有限公司 | Fixed type constant-speed universal joint |
| CN112211915A (en) * | 2020-09-28 | 2021-01-12 | 万向钱潮股份有限公司 | Efficient rzeppa constant velocity universal joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20100718 |