CN105179499A - Eight-steel-ball rzeppa constant velocity joint - Google Patents
Eight-steel-ball rzeppa constant velocity joint Download PDFInfo
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- CN105179499A CN105179499A CN201510620520.7A CN201510620520A CN105179499A CN 105179499 A CN105179499 A CN 105179499A CN 201510620520 A CN201510620520 A CN 201510620520A CN 105179499 A CN105179499 A CN 105179499A
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- outer race
- steel ball
- star sleeve
- windows
- annular retainer
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Abstract
The invention discloses an eight-steel-ball rzeppa constant velocity joint. An annular retainer is located in a gap between the inner wall of a bell housing and the outer wall of a starlike sleeve; eight outer channels matched with steel balls are evenly formed in the surface of an inner cavity of the bell housing, eight inner channels formed corresponding to the outer channels are evenly formed in the outer surface of the starlike sleeve, and eight windows corresponding to the inner channels and the outer channels are formed in the annular retainer; four windows are large, the other four windows are small, and the four large windows and the four small windows are evenly distributed alternately; and each window is internally provided with one steel ball, and the steel balls are matched with the inner channels and the outer channels in a contact manner. The sizes of the channels of the bell housing and the channels of the starlike sleeve are small, and the size of the reference circle of a spline of a driving shaft connected with the starlike sleeve is large; and the structure is more compact, the mass is lower, power transfer capacity is higher, and mating cost is lower.
Description
Technical field
The present invention relates to auto parts and components field, particularly relate to a kind of rzeppa universal joint.
Background technique
The high-performance constant velocity shaft assembly of passenger car is made up of fixed joint, sliding universal joint and the jack shaft be connected between universal joint usually.
Usually, universal joint role transmits rotational power and moment of torsion between two rotating shafts connected with an angle each other.In the transmission shaft situation with little power transmission angle, use hook universal joint, flexible universal joint etc., and in the live axle situation of f-w-d vehicle with large power transmission angle, use constant velocity universal joint.Because also can with uniform velocity reliably transferring power when the angle of constant velocity universal joint even between live axle and driven shaft is very large, so constant velocity universal joint be mainly used in the axletree of independent suspension type f-w-d vehicle.When from the angle of axle, Y-type constant speed universal joint be arranged on axle towards one end of motor and the medial extremity of axle, and rzeppa universal joint be arranged on axle towards the other end of tire and the outboard end of axle.High performance constant velocity shaft assembly is except requiring, stably except transferring power, to also have reliable, the long-lived requirement of intensity.
Along with the anxiety of global resources and national governments are to the pay attention to day by day of environmental protection, the lightweight of automobile has become the inexorable trend of current automobile industry development.
Six traditional steel ball rzeppa universal joint steel numbers are relatively less, universal joint outer race, star sleeve channel dimensions are larger, and the jack shaft spline standard pitch circle size be connected with star sleeve is less, so six traditional steel ball rzeppa universal joint volumes and quality are all comparatively large, transmitting torque limited in one's ability.As reduced the physical dimension of six traditional steel ball rzeppa universal joints greatly, then intensity can not meet design requirement.
Summary of the invention
Object of the present invention solves the above-mentioned problems in the prior art exactly, there is provided a kind of outer race, star sleeve channel dimensions less, the live axle spline standard pitch circle size be connected with star sleeve is comparatively large, and the eight steel ball rzeppa universal joints that more compact structure, quality are lighter, stronger, the supporting cost of transferring power ability is lower.
For achieving the above object, technical solution of the present invention is: a kind of eight steel ball rzeppa universal joints, comprises the outer race being provided with inner chamber, the star sleeve being arranged in inner chamber, annular retainer and eight uniform and steel balls of circular array; In the gap of described annular retainer between outer race inwall and star sleeve outer wall; The inwall of described outer race and the outer wall of described annular retainer form one group of spherical pair, the inwall of described annular retainer and the other one group of spherical pair of outer wall composition of described star sleeve, and two groups of spherical pairs are Spielpassung; Described outer race surface of internal cavity evenly has eight outer raceway grooves matched with steel ball, described star sleeve outer surface evenly have eight with the interior raceway groove of the corresponding setting of described outer raceway groove, described annular retainer has eight windows corresponding with inside and outside raceway groove; These eight windows, wherein four is larger window, and other four is comparatively wicket, and four larger windows are alternate compared with wicket with four to be uniformly distributed; Be provided with a steel ball in each window, described steel ball and interior raceway groove contact with outer raceway groove and coordinate.
There is throw of eccentric at the inwall sphere centre of outer race described above and the center of described outer race each outer fissure road track, and described star sleeve outer wall sphere centre has identical throw of eccentric with each interior channel center of described star sleeve.Throw of eccentric is identical is to be positioned on equidistant point by steel ball, thus ensure live axle constant-speed transmission power, but in actual applications, consider the throw of eccentric that affects dynamically the inwall sphere centre of outer race and the center of the outer race each outer fissure road track throw of eccentric slightly larger than star sleeve outer wall sphere centre and each interior channel center of star sleeve.
Star sleeve described above is connected with live axle by involute splines.
Outer race described above is connected with wheel hub by involute splines, and the screw thread of described outer race outermost end has locking function, ensures that wheel hub is not easy to come off.
Owing to present invention employs such scheme, adopt eight steel balls, when bearing identical torsion with six steel balls, the volume that steel ball can do is less, like this, the channel dimensions of outer race and the channel dimensions of star sleeve just can diminish, gap between outer race and star sleeve can diminish, it is less that outer race, star sleeve and annular retainer also can do, and live axle can be thicker, live axle spline standard pitch circle size becomes large, and universal joint overall structure is compacter, quality is lighter, transferring power ability is stronger.Four on annular retainer alternate equally distributed larger windows and four less windows, to ensure that described annular retainer has enough intensity.
Accompanying drawing explanation
Fig. 1 is axial cross section schematic diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1, the present embodiment comprises the outer race 1 being provided with inner chamber, the star sleeve 2 being arranged in inner chamber, annular retainer 4 and eight uniform and steel balls 3 of circular array.In the gap of described annular retainer 4 between outer race 1 inwall and star sleeve 2 outer wall.The inwall of described outer race 1 and the outer wall of described annular retainer 4 form one group of spherical pair, and the inwall of described annular retainer 4 and the other one group of spherical pair of outer wall composition of described star sleeve 2, two groups of spherical pairs are Spielpassung.Described outer race 1 surface of internal cavity evenly has the outer raceway groove matched with eight steel balls 3, described star sleeve 2 outer surface evenly have eight with the interior raceway groove of the corresponding setting of described outer raceway groove, described annular retainer 4 has eight windows corresponding with inside and outside raceway groove, these eight windows, wherein four is larger window, other four is comparatively wicket, and four larger windows are alternate compared with wicket with four to be uniformly distributed; Be provided with a steel ball in each window, described steel ball and interior raceway groove contact with outer raceway groove and coordinate.Further preferably, the inwall sphere centre O point of described outer race 1 and the center O of described outer race 1 each outer fissure road track
1there is throw of eccentric C
1, the center O of described star sleeve outer wall sphere centre O and described star sleeve each septal fossula road track
2there is identical throw of eccentric C
2, but in actual applications, consider and affect C dynamically
1slightly larger than C
2, R is the radius of outer race 1 each outer fissure road track, and r is each septal fossula road orbital radius.Further preferably, described star sleeve 2 is connected with live axle by involute splines.Described outer race 1 is connected with wheel hub by involute splines, and the screw thread of described outer race 1 outermost end has locking function.
The eight steel ball rzeppa universal joints that the present embodiment provides, compared to six traditional steel ball rzeppa universal joints, steel ball size is less, structure is compacter, quality is lighter, bearing capacity is higher, and supporting cost is lower.
Above-described embodiment is exemplary illustration principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar is improving, in protection scope of the present invention the equivalent technologies that above-described embodiment carries out under spirit of the present invention and category.
Claims (5)
1. eight steel ball rzeppa universal joints, is characterized in that: it comprises the outer race being provided with inner chamber, the star sleeve being arranged in inner chamber, annular retainer and eight uniform and steel balls of circular array; In the gap of described annular retainer between outer race inwall and star sleeve outer wall; The inwall of described outer race and the outer wall of described annular retainer form one group of spherical pair, the inwall of described annular retainer and the other one group of spherical pair of outer wall composition of described star sleeve, and two groups of spherical pairs are Spielpassung; Described outer race surface of internal cavity evenly has eight outer raceway grooves matched with steel ball, described star sleeve outer surface evenly have eight with the interior raceway groove of the corresponding setting of described outer raceway groove, described annular retainer has eight windows corresponding with inside and outside raceway groove; These eight windows, wherein four is larger window, and other four is comparatively wicket, and four larger windows are alternate compared with wicket with four to be uniformly distributed; Be provided with a steel ball in each window, described steel ball and interior raceway groove contact with outer raceway groove and coordinate.
2. eight steel ball rzeppa universal joints according to claim 1, it is characterized in that: there is throw of eccentric at the inwall sphere centre of described outer race and the center of described outer race each outer fissure road track, and described star sleeve outer wall sphere centre has identical throw of eccentric with each interior channel center of described star sleeve.
3. eight steel ball rzeppa universal joints according to claim 1 and 2, is characterized in that: described star sleeve is connected with live axle by involute splines.
4. eight steel ball rzeppa universal joints according to claim 3, described outer race is connected with wheel hub by involute splines, and the screw thread of described outer race outermost end has locking function.
5. eight steel ball rzeppa universal joints according to claim 1 and 2, described outer race is connected with wheel hub by involute splines, and the screw thread of described outer race outermost end has locking function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510620520.7A CN105179499A (en) | 2015-09-26 | 2015-09-26 | Eight-steel-ball rzeppa constant velocity joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510620520.7A CN105179499A (en) | 2015-09-26 | 2015-09-26 | Eight-steel-ball rzeppa constant velocity joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105179499A true CN105179499A (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510620520.7A Pending CN105179499A (en) | 2015-09-26 | 2015-09-26 | Eight-steel-ball rzeppa constant velocity joint |
Country Status (1)
| Country | Link |
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| CN (1) | CN105179499A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822683A (en) * | 2016-05-27 | 2016-08-03 | 台州钻煌汽车零部件有限公司 | Eight-window retainer and machining method thereof |
| CN107420446A (en) * | 2016-05-06 | 2017-12-01 | 株式会社捷太格特 | Constant velocity cardan joint |
| CN110821978A (en) * | 2019-12-18 | 2020-02-21 | 耐世特凌云驱动***(涿州)有限公司 | Eight steel ball rzeppa constant velocity joints of wide-angle high efficiency |
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| CN201173255Y (en) * | 2008-04-03 | 2008-12-31 | 宁波宏祥驱动轴有限公司 | Inner ball cage |
| CN201407293Y (en) * | 2009-03-18 | 2010-02-17 | 东营市信义汇丰汽车配件有限责任公司 | Eight-channel constant velocity universal joint |
| EP0802341B2 (en) * | 1995-12-26 | 2010-04-28 | Ntn Corporation | Constant velocity universal coupling |
| CN201593569U (en) * | 2010-01-11 | 2010-09-29 | 浙江凯迪汽车部件工业有限公司 | External ball cage of universal joint |
| CN203847578U (en) * | 2014-06-05 | 2014-09-24 | 浙江欧迪恩传动科技股份有限公司 | Constant velocity universal joint at EVJ fixing end |
| CN205047683U (en) * | 2015-09-26 | 2016-02-24 | 耐世特凌云驱动***(涿州)有限公司 | Eight steel ball rzeppa universal joint |
-
2015
- 2015-09-26 CN CN201510620520.7A patent/CN105179499A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0802341B2 (en) * | 1995-12-26 | 2010-04-28 | Ntn Corporation | Constant velocity universal coupling |
| CN201173255Y (en) * | 2008-04-03 | 2008-12-31 | 宁波宏祥驱动轴有限公司 | Inner ball cage |
| CN201407293Y (en) * | 2009-03-18 | 2010-02-17 | 东营市信义汇丰汽车配件有限责任公司 | Eight-channel constant velocity universal joint |
| CN201593569U (en) * | 2010-01-11 | 2010-09-29 | 浙江凯迪汽车部件工业有限公司 | External ball cage of universal joint |
| CN203847578U (en) * | 2014-06-05 | 2014-09-24 | 浙江欧迪恩传动科技股份有限公司 | Constant velocity universal joint at EVJ fixing end |
| CN205047683U (en) * | 2015-09-26 | 2016-02-24 | 耐世特凌云驱动***(涿州)有限公司 | Eight steel ball rzeppa universal joint |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420446A (en) * | 2016-05-06 | 2017-12-01 | 株式会社捷太格特 | Constant velocity cardan joint |
| CN105822683A (en) * | 2016-05-27 | 2016-08-03 | 台州钻煌汽车零部件有限公司 | Eight-window retainer and machining method thereof |
| CN110821978A (en) * | 2019-12-18 | 2020-02-21 | 耐世特凌云驱动***(涿州)有限公司 | Eight steel ball rzeppa constant velocity joints of wide-angle high efficiency |
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| PB01 | Publication | ||
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Application publication date: 20151223 |