CN204239506U - The two throw of eccentric rzeppa universal joint of a kind of eight raceway groove centre ofs sphere - Google Patents
The two throw of eccentric rzeppa universal joint of a kind of eight raceway groove centre ofs sphere Download PDFInfo
- Publication number
- CN204239506U CN204239506U CN201420694119.9U CN201420694119U CN204239506U CN 204239506 U CN204239506 U CN 204239506U CN 201420694119 U CN201420694119 U CN 201420694119U CN 204239506 U CN204239506 U CN 204239506U
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- Prior art keywords
- eccentric
- raceway
- throw
- sphere
- steel ball
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
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Abstract
The two throw of eccentric rzeppa universal joint of a kind of eight raceway groove centre ofs sphere.Mainly solve existing eight channel ball cage type constant velocity universal joints when pendulum angle is to the limit, in its eight raceway groove due to steel ball alley female surface too small, cause steel ball with alley excessive wear, universal joint is short for working life, and steel ball holds caducous problem.The utility model is provided on eight traditional channel constant velocity universal joint bases and has established a centre of sphere distance more, in one of them, the throw of eccentric of raceway is in the left side of the centre of sphere, and adjacent interior raceway throw of eccentric is on the right side of the centre of sphere, along eight the outer raceways arranging common sphere about star sleeve axial direction is also dispersed with two groups of throw of eccentric uniformly on star sleeve outer spherical surface. when universal joint swings corner, because adjacent raceway throw of eccentric is different, when steel ball between inside and outside raceway swings to maximum angle, its steel ball female surface can crossing change, make the steel ball uniform stressed in eight raceway grooves, decrease because alley female surface is too small, cause steel ball with alley excessive wear, also reduce and cross small ball because of female surface and to come off risk.
Description
Technical field
The utility model belongs to auto parts and components field, particularly the two throw of eccentric rzeppa universal joint of a kind of eight raceway groove centre ofs sphere.
Background technique
What eight channel ball cage type universal joints that existing eight raceway groove centre of sphere biases ball type constant velocity joint are traditional adopted is constant velocity universal joint principle, and structure is that these three centre ofs sphere of the centre of sphere of the mutually concentric internal and external spherical surfaces centre of sphere of the outer race inner ball surface centre of sphere and retainer and star sleeve outer spherical surface coincide with a common point A in universal joint assembly.Outer race internal spherical surface is dispersed with eight altogether raceways in spheres uniformly along outer race axial direction, its be total to the centre of sphere of sphere and the centre of sphere decentraction of outer race inner ball surface, but on outer race axis, be provided with a throw of eccentric C; Star sleeve outer spherical surface is dispersed with uniformly the outer raceway of eight altogether spheres along star sleeve axial direction, its be total to the centre of sphere of sphere and the centre of sphere decentraction of star sleeve outer spherical surface, but on star sleeve axis, be provided with a throw of eccentric C; Above-mentioned two throw of eccentric C are symmetrically distributed in the both sides of an A, like this when universal joint swings, outer race is in intersection with the corresponding raceway of star sleeve, to the steel ball be between inside and outside raceway be automatically positioned in the bisecting plane of outer race and star sleeve axis angle, thus keep universal joint isogonism speed transferring power.
But, existing eight channel ball cage type constant velocity universal joints in vehicle travel process, when pendulum angle is to the limit, steel ball alley female surface in its eight raceway groove is too small, causes steel ball with alley excessive wear, and reduces universal joint working life, meanwhile, also cross small ball because of female surface to come off risk.
Model utility content
In order to overcome the deficiency of background technique, the utility model provides a kind of eight raceway groove centre ofs sphere two throw of eccentric rzeppa universal joint, mainly solve existing eight channel ball cage type constant velocity universal joints in vehicle travel process, when pendulum angle is to the limit, steel ball alley bag in its eight raceway groove is too small owing to holding face, cause steel ball with alley excessive wear, universal joint is short for working life, and steel ball holds caducous problem.
The technological scheme that the utility model adopts is:
The two throw of eccentric rzeppa universal joint of a kind of eight raceway groove centre ofs sphere, comprise outer race, star sleeve is provided with in described outer race, retainer and steel ball, described outer race inwall is dispersed with eight interior raceways uniformly at axial direction, correspondingly with described interior raceway on described star sleeve be provided with outer raceway, described steel ball is respectively with interior, outer raceway is slidably matched, described interior raceway to comprise in adjacent first raceway groove in raceway groove and second, in described first, raceway groove is relative to eccentric on the left of the centre of sphere of steel ball, its throw of eccentric is a1, in described second, raceway groove is relative to eccentric on the right side of the centre of sphere of steel ball, its throw of eccentric is a2, described outer raceway comprises the first outer raceway corresponding with raceway groove in first and second and the second outer raceway, described first outer raceway is relative to eccentric on the left of the centre of sphere of steel ball, its throw of eccentric is a1, and described second outer raceway is relative to eccentric on the right side of the centre of sphere of steel ball, and its throw of eccentric is a2.
Described outer race comprises the first cambered surface, the second cambered surface and the 3rd cambered surface, and the section radius of described first and third cambered surface is equal, and fitting in described first and third cambered surface and retainer outer spherical surface two ends, has gap between described second cambered surface and retainer outer spherical surface.
The beneficial effects of the utility model are: the utility model provides a kind of eight raceway groove centre ofs sphere two throw of eccentric rzeppa universal joint, a centre of sphere distance has been established on eight traditional channel ball cage type constant velocity universal joint bases more in alley, feature is the left side of throw of eccentric at the centre of sphere of raceway in one of them, and adjacent interior raceway throw of eccentric is on the right side of the centre of sphere, along eight the outer raceways arranging common sphere about star sleeve axial direction is also dispersed with two groups of throw of eccentric uniformly on star sleeve outer spherical surface. like this when universal joint swings corner, because adjacent raceway throw of eccentric is different, when steel ball between inside and outside raceway swings to maximum angle, its steel ball female surface can crossing change, make the steel ball uniform stressed in eight raceway grooves, decrease because alley female surface is too small, cause steel ball with alley excessive wear, also reduce and cross small ball because of female surface and to come off risk.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model embodiment.
Fig. 2 is the worm's eye view of the outer race of the utility model embodiment.
Fig. 3 is Fig. 2 AA place sectional view.
Fig. 4 is the schematic diagram of the planet carrier of the utility model embodiment.
Fig. 5 is Fig. 4 BB place sectional view.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: as shown in the figure, the two throw of eccentric rzeppa universal joint of a kind of eight raceway groove centre ofs sphere, comprise outer race 1, star sleeve 2 is provided with in described outer race 1, retainer 3 and steel ball 4, described outer race 1 inwall is dispersed with eight interior raceways uniformly at axial direction, correspondingly with described interior raceway on described star sleeve 2 be provided with outer raceway, described steel ball 4 is respectively with interior, outer raceway is slidably matched, described interior raceway to comprise in adjacent first raceway groove in raceway groove and second, in described first, raceway groove is relative to eccentric on the left of the centre of sphere of steel ball 4, its throw of eccentric is a1, in described second, raceway groove is relative to eccentric on the right side of the centre of sphere of steel ball 4, its throw of eccentric is a2, described outer raceway comprises the first outer raceway corresponding with raceway groove in first and second and the second outer raceway, described first outer raceway is relative to eccentric on the left of the centre of sphere of steel ball 4, its throw of eccentric is a1, and described second outer raceway is relative to eccentric on the right side of the centre of sphere of steel ball 4, and its throw of eccentric is a2.The utility model provides a kind of eight raceway groove centre ofs sphere two throw of eccentric rzeppa universal joint, a centre of sphere distance has been established on eight traditional channel ball cage type constant velocity universal joint bases more in alley, feature is the left side of throw of eccentric at the centre of sphere of raceway in one of them, and adjacent interior raceway throw of eccentric is on the right side of the centre of sphere, along eight the outer raceways arranging common sphere about star sleeve axial direction is also dispersed with two groups of throw of eccentric uniformly on star sleeve outer spherical surface. like this when universal joint swings corner, because adjacent raceway throw of eccentric is different, when steel ball between inside and outside raceway swings to maximum angle, its steel ball female surface can crossing change, make the steel ball uniform stressed in eight raceway grooves, decrease because alley female surface is too small, cause steel ball with alley excessive wear, also reduce and cross small ball because of female surface and to come off risk.
In the utility model, as shown in the figure, described outer race 1 comprises the first cambered surface 11, second cambered surface 12 and the 3rd cambered surface 13, the section radius of described first and third cambered surface is equal, fitting in described first and third cambered surface and retainer 3 outer spherical surface two ends, has gap between described second cambered surface and retainer 3 outer spherical surface.When product moves, retainer outer spherical surface contacts with the two ends circular arc in outer race inner ball surface, intermediate section circular arc and retainer outer spherical surface about have the gap of 0.04mm, lubricant oil can fully be lubricated sphere, product is greatly improved working life, avoids simultaneously and cross ambassador's ball cage because of outer race inner ball surface and retainer outer spherical surface wearing clearance and produce sound.
Embodiment should not be considered as restriction of the present utility model, but any improvement done based on spirit of the present utility model, all should within protection domain of the present utility model.
Claims (2)
1. the two throw of eccentric rzeppa universal joint of the raceway groove centre of sphere, comprise outer race (1), star sleeve (2) is provided with in described outer race (1), retainer (3) and steel ball (4), described outer race (1) inwall is dispersed with eight interior raceways uniformly at axial direction, described star sleeve (2) is above corresponding with described interior raceway is provided with outer raceway, described steel ball (4) is respectively with interior, outer raceway is slidably matched, it is characterized in that: described interior raceway to comprise in adjacent first raceway groove in raceway groove and second, in described first, raceway groove is relative to eccentric on the left of the centre of sphere of steel ball (4), its throw of eccentric is a1, in described second, raceway groove is relative to eccentric on the right side of the centre of sphere of steel ball (4), its throw of eccentric is a2, described outer raceway comprises the first outer raceway corresponding with raceway groove in first and second and the second outer raceway, described first outer raceway is relative to eccentric on the left of the centre of sphere of steel ball (4), its throw of eccentric is a1, and described second outer raceway is relative to eccentric on the right side of the centre of sphere of steel ball (4), and its throw of eccentric is a2.
2. the two throw of eccentric rzeppa universal joint of a kind of eight raceway groove centre ofs sphere according to claim 1, it is characterized in that: described outer race (1) comprises the first cambered surface (11), the second cambered surface (12) and the 3rd cambered surface (13), the section radius of described first and third cambered surface is equal, fitting in described first and third cambered surface and retainer (3) outer spherical surface two ends, has gap between described second cambered surface and retainer (3) outer spherical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694119.9U CN204239506U (en) | 2014-11-19 | 2014-11-19 | The two throw of eccentric rzeppa universal joint of a kind of eight raceway groove centre ofs sphere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694119.9U CN204239506U (en) | 2014-11-19 | 2014-11-19 | The two throw of eccentric rzeppa universal joint of a kind of eight raceway groove centre ofs sphere |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239506U true CN204239506U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420694119.9U Expired - Fee Related CN204239506U (en) | 2014-11-19 | 2014-11-19 | The two throw of eccentric rzeppa universal joint of a kind of eight raceway groove centre ofs sphere |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239506U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114479A (en) * | 2015-09-14 | 2015-12-02 | 温州聚泉汽车部件有限公司 | Constant-velocity universal joint transmission shaft |
-
2014
- 2014-11-19 CN CN201420694119.9U patent/CN204239506U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114479A (en) * | 2015-09-14 | 2015-12-02 | 温州聚泉汽车部件有限公司 | Constant-velocity universal joint transmission shaft |
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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: 20150401 |