CN103216540A - Rzeppa universal joint with double pressure angles - Google Patents
Rzeppa universal joint with double pressure angles Download PDFInfo
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- CN103216540A CN103216540A CN2013101122641A CN201310112264A CN103216540A CN 103216540 A CN103216540 A CN 103216540A CN 2013101122641 A CN2013101122641 A CN 2013101122641A CN 201310112264 A CN201310112264 A CN 201310112264A CN 103216540 A CN103216540 A CN 103216540A
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- steel ball
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- curved surface
- circular arc
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Abstract
The invention provides a rzeppa universal joint with double pressure angles. The rzeppa universal joint with double pressure angles comprises a bell-like housing, a star-like sleeve and a steel ball, wherein the star-like sleeve is arranged in the bell-like housing; the steel ball is arranged between the bell-like housing and the star-like sleeve; the inner side wall of the bell-like housing is provided with an outer ball groove for containing the steel ball; the outer side wall of the star-like sleeve is provided with an inner ball groove for containing the steel ball; the steel ball is arranged between the outer ball groove and the inner ball groove and is restrained by a retainer; the wall surface of the outer ball groove comprises two first curved surfaces; each first curved surface is tangent with the steel ball arranged in the outer ball groove; and the intersecting lines of a plane determined by three points including the intersection points of the steel ball in the outer ball groove and the two first curved surfaces, and the center of the steel ball, and an upper ball groove wall of the bell-like housing, are two first circular arcs, each of which the radius is more than the radius of the steel ball. According to the rzeppa universal joint with double pressure angles, which is disclosed by the invention, the product cooperation precision is increased, a certain gap is formed between the steel ball and the bottom of each ball groove so as to bring convenience for grease to enter, inner components are fully lubricated, calorific power and abrasion loss under the high-speed operation state are lowered, and the transmission efficiency and the service life of a driving shaft are improved.
Description
Technical field
The present invention relates to the rzeppa universal joint field, be specifically related to the two pressure angle constant velocity universal joints of a kind of Rzeppa type.
Background technique
Present most widely used automobile driving axle mainly is made up of fixed-type constant-velocity universal joint, portable constant velocity universal joint and coupling shaft.The fixed-type constant-velocity universal joint is carrying the input of automobile driving wheel moment of rotation, especially and the varied angle transmission of torque between the coupling shaft, is the important mechanism in the automobile driving system.Existing fixed-type constant-velocity universal joint retrains steel ball in outer race and the axial uniform alley of star sleeve by retainer, with single circular arc contact form transmitting movement that the alley arc size approximates steel ball size greater than the single-point contact form or the alley arc size of steel ball size, realize the special transmission of moment under the constant velocity universal joint certain condition.It can satisfy the general operational requirement of fixed-type constant-velocity universal joint, but have certain restraining factors: the constant velocity universal joint of single-point contact alley is easy to wear when running up, phenomenons such as cooperation is not tight, kinematic accuracy is low are often arranged, the usability that not only is related to constant velocity universal joint also influences its working life; And single circular arc contact alley constant velocity universal joint workpiece radiating effect is poor, is prone to amount of localized heat during work and sharply rises.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Rzeppa type two pressure angle constant velocity universal joints, increased the product quality of fit, certain clearance is arranged at steel ball and alley bottom, make things convenient for grease to enter, internal component is carried out sufficient lubrication, reduce heating value and wear extent under the state that runs up, improve the transmission efficiency and the working life of live axle.
For solving above-mentioned existing technical problem, the present invention adopts following scheme: the two pressure angle constant velocity universal joints of a kind of Rzeppa type, comprise outer race, be located at the star sleeve in the outer race, be located at the steel ball between outer race and the star sleeve, described outer race madial wall is provided with the outer alley of ccontaining steel ball, described star sleeve outer side wall is provided with the interior alley of ccontaining steel ball, described steel ball is located between outer alley and the interior alley and by retainer and retrains, the alley wall of described outer alley comprises that two curved surface I and each curved surface I are all tangent with the steel ball that is located in the outer alley, and the intersection of alley wall is that two radiuses are all greater than the circular arc I of steel ball radius on the steel ball in the described outer alley and the intersection point of two curved surface I and 3 determined planes of this steel ball centre of sphere and the outer race.
As preferably, two curved surface I intersect.
As preferably, the radius of two circular arc I and arc length all equate and the center of circle does not overlap.
As preferably, the alley wall comprises that two curved surface II and each curved surface II are all tangent with the steel ball that is located in this alley in described, described in the crossing intersection of point of contact and 3 determined planes of this steel ball centre of sphere of steel ball in the alley and each curved surface II and interior alley wall be that two radiuses are all greater than the circular arc II of steel ball radius.
As preferably, two curved surface II intersect.
As preferably, the radius of two circular arc II and arc length all equate and the center of circle does not overlap.
As preferably, the radius of described circular arc II and circular arc I equates.
As preferably, the intersection of two curved surface I is the circular arc III, the alley wall comprises that two curved surface II and each curved surface II are all tangent with the steel ball that is located in the interior alley in described, the crossing intersection of alley wall is that two radiuses are all greater than the circular arc II of steel ball radius on steel ball in the interior alley and the point of contact of each curved surface II and 3 determined planes of this steel ball centre of sphere and the outer race, two curved surface II intersect, the intersection of two curved surface II is the circular arc IV, the radius of two circular arc II and arc length all equate and the center of circle does not overlap, the radius of described circular arc II and circular arc I equates that the center of circle of the center of circle of described circular arc III and circular arc IV equidistantly is positioned at the both sides, the center of circle of the determined circle of all steel ball centre ofs sphere respectively.
As preferably, described outer race oral area madial wall and oral area end face are by the transition of chamfering I.
As preferably, the bottom of described outer alley bottom and outer race is by the transition of chamfering II.
Beneficial effect:
The two pressure angle constant velocity universal joints of a kind of Rzeppa type that the present invention adopts technique scheme to provide have the following advantages:
1, the wall of outer alley is tangent with the steel ball that is located in this alley by two curved surface I, the crossing intersection of alley wall is that two radiuses are all greater than the circular arc I of steel ball radius on steel ball in this alley and the point of contact of each curved surface I and 3 determined planes of this steel ball centre of sphere and the outer race, make steel ball and alley bottom that certain clearance be arranged, make things convenient for grease to enter, internal component is carried out sufficient lubrication, reduce heating value and wear extent under the state that runs up, improve the transmission efficiency and the working life of live axle, increased the alley quality of fit on steel ball and the outer race.
2, the wall of interior alley is tangent with the steel ball that is located in this alley by two curved surface II, the crossing intersection of alley wall is that two radiuses are all greater than the circular arc II of steel ball radius on steel ball in this alley and the point of contact of each curved surface II and 3 determined planes of this steel ball centre of sphere and the outer race, make steel ball and alley bottom that certain clearance be arranged, make things convenient for grease to enter, internal component is carried out sufficient lubrication, reduce heating value and wear extent under the state that runs up, improve the transmission efficiency and the working life of live axle, increased the alley quality of fit on steel ball and the outer race.
3, because steel ball contacts with the equal two point of inside and outside alley, steel ball is that two 4 of pressure angles contact design with two alleys like this, can effectively increase the quality of fit of entire product.
4, the interior relative steel ball centre of sphere biasing in alley center with outer alley center, be the equidistant both sides, the center of circle that are positioned at outer race steel ball centre of sphere place circle, the center of circle of the center of circle of circular arc III and circular arc IV, guaranteed that effectively constant velocity universal joint finishes the transmission of torque task with constant angular velocity rotation form.
5, the design of transition chamfering formula can prevent effectively that product from ftractureing between interior alley bottom and the outer race bottom when heat treatment step, reduces the product process and scraps, and has processing Economy advantage.
6, outer race oral area chamfering formula design makes things convenient for packing into of retainer, promotes the product packaging efficiency, and economical with materials consumption has the characteristics of low-cost high-efficiency simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of outer race among the present invention;
Fig. 3 is the structural representation of alley on outer race among the present invention and the star sleeve and steel ball cooperation;
Fig. 4 is the structural representation of star sleeve among the present invention;
Fig. 5 is the partial structurtes schematic representation of retainer among the present invention.
Embodiment
Shown in Fig. 1 to 5, the two pressure angle constant velocity universal joints of a kind of Rzeppa type, comprise outer race 4, be located at the star sleeve 3 in the outer race 4, be located at the steel ball 1 between outer race 4 and the star sleeve 3, described outer race 4 madial walls are provided with the outer alley of ccontaining steel ball 1, described star sleeve 3 outer side walls are provided with the interior alley of ccontaining steel ball 1, described steel ball 1 is located between outer alley and the interior alley and by retainer 2 and retrains, the alley wall of described outer alley comprises that two curved surface I 41 and each curved surface I 41 are all tangent with the steel ball 1 that is located in the outer alley, and the intersection of alley wall is that two radiuses are all greater than the circular arc I 411 of steel ball 1 radius on the steel ball 1 in the described outer alley and the intersection point of two curved surface I 41 and these 3 determined planes of steel ball 1 centre of sphere and the outer race 4.Two curved surface I 41 intersect, and the intersection of two curved surface I 41 is the circular arc III.The radius of two circular arc I 411 and arc length all equate and the center of circle does not overlap.In described the alley wall of alley comprise two curved surface II 31 and each curved surface II 31 all be located in steel ball 1 in the alley tangent, described in the intersection of the intersection point of the interior steel ball 1 of alley and two curved surface II 31 and these 3 determined planes of steel ball 1 centre of sphere and interior alley wall be that two radiuses are all greater than the circular arc II 311 of steel ball 1 radius.Two curved surface II 31 intersect, and the intersection of two curved surface II 31 is the circular arc IV.The radius of two circular arc II 311 and arc length all equate and the center of circle does not overlap.The radius of described circular arc II 311 and circular arc I 411 equates.The center of circle of the center of circle of described circular arc III and circular arc IV equidistantly is positioned at the both sides, the center of circle of the determined circle of all steel ball 1 centre ofs sphere respectively.Described outer race 4 oral area madial walls and oral area end face are by 6 transition of chamfering I.The bottom of described outer alley bottom and outer race 4 is by 7 transition of chamfering II.
In the present embodiment, preferred 6 of steel ball number, corresponding outer alley and interior alley number average are 6 roads, the ball hole on the retainer 2 also is 6; In use, star sleeve 3 drives rotation by cooperating with driving shaft by driving shaft, pass torque to outer race 4 by steel ball 1 and retainer 2 again and then drive outer race 4 rotations, because the relative steel ball biasing in outer alley center with interior alley center, be the both sides, the center of circle that the center of circle of the center of circle of circular arc III and circular arc IV equidistantly is positioned at 6 determined circles of steel ball 1 centre of sphere respectively, guaranteed like this when star sleeve 3 drives outer race 4 rotations by steel ball 1 and retainer 2,6 determined planes of steel ball 1 centre of sphere are positioned on the bisector plane of the central shaft angle of cut of the central shaft of star sleeve 3 and outer race 4 all the time, have guaranteed that effectively constant velocity universal joint carries out the transmission of torque task with the constant angular velocity form; The design of transition chamfering formula can prevent effectively that product from ftractureing between outer alley bottom and outer race 4 bottoms when heat treatment step, reduces the product process and scraps, and has processing Economy advantage; The design of outer race 4 end-beveling formulas makes things convenient for packing into of retainer, promotes the product packaging efficiency, and economical with materials consumption has the characteristics of low-cost high-efficiency simultaneously.
In the present embodiment, two curved surface I 41 also can be non-intersect, and groove is set between two curved surface I 41, make the gap of steel ball and alley bottom bigger, convenient grease enters with reduction run up heating value and wear extent under the state, equally, two curved surface II 31 also can be non-intersect, and groove is set between two curved surface II 31; Two curved surface I 41 can adopt chamfering or round-corner transition with outer race 4 internal faces, the convenient steel ball of installing, and same, two curved surface II 31 also can adopt chamfering or round-corner transition with star sleeve 3 outer walls; The radius of circular arc I 411 and circular arc II 311 is slightly larger than the steel ball radius, as greater than 0.05mm-2mm, can be preferably 1mm; Outer alley is distributed on outer race 4 inwalls, and interior alley is distributed on star sleeve 3 outer walls.
Claims (10)
1. two pressure angle constant velocity universal joints of a Rzeppa type, comprise outer race (4), be located at the star sleeve (3) in the outer race (4), be located at the steel ball (1) between outer race (4) and the star sleeve (3), described outer race (4) madial wall is provided with the outer alley of ccontaining steel ball (1), described star sleeve (3) outer side wall is provided with the interior alley of ccontaining steel ball (1), described steel ball (1) is located between outer alley and the interior alley and by retainer (2) and retrains, it is characterized in that: the alley wall of described outer alley comprises that two curved surface I (41) and each curved surface I (41) are all tangent with the steel ball (1) that is located in the outer alley, and the steel ball (1) in the described outer alley and the intersection point of two curved surface I (41) and 3 determined planes of this steel ball (1) centre of sphere and outer race (4) the upward intersection of alley wall are that two radiuses are all greater than the circular arc I (411) of steel ball (1) radius.
2. the two pressure angle constant velocity universal joints of a kind of Rzeppa type according to claim 1, it is characterized in that: two curved surface I (41) intersect.
3. the two pressure angle constant velocity universal joints of a kind of Rzeppa type according to claim 2, it is characterized in that: the radius of two circular arc I (411) and arc length all equate and the center of circle does not overlap.
4. the two pressure angle constant velocity universal joints of a kind of Rzeppa type according to claim 1 and 2, it is characterized in that: in described the alley wall of alley comprise two curved surface II (31) and each curved surface II (31) all be located in steel ball (1) in the alley tangent, described in the intersection of the intersection point of steel ball (1) in the alley and two curved surface II (31) and 3 determined planes of this steel ball (1) centre of sphere and interior alley wall be that two radiuses are all greater than the circular arc II (311) of steel ball (1) radius.
5. the two pressure angle constant velocity universal joints of a kind of Rzeppa type according to claim 4, it is characterized in that: two curved surface II (31) intersect.
6. the two pressure angle constant velocity universal joints of a kind of Rzeppa type according to claim 5, it is characterized in that: the radius of two circular arc II (311) and arc length all equate and the center of circle does not overlap.
7. the two pressure angle constant velocity universal joints of a kind of Rzeppa type according to claim 4, it is characterized in that: the radius of described circular arc II (311) and circular arc I (411) equates.
8. the two pressure angle constant velocity universal joints of a kind of Rzeppa type according to claim 3, it is characterized in that: the intersection of two curved surface I (41) is the circular arc III, the alley wall of alley comprises that all interior with being located at this alley steel ball (1) single-point of two curved surface II (31) and each curved surface II (31) contacts in described, the crossing intersection of steel ball (1) in described in the alley and the point of contact of each curved surface II (31) and 3 determined planes of this steel ball (1) centre of sphere and interior alley wall is that two radiuses are all greater than the circular arc II (311) of steel ball (1) radius, two curved surface II (31) intersect, the intersection of two curved surface II (31) is the circular arc IV, the radius of two circular arc II (311) and arc length all equate and the center of circle does not overlap, the radius of described circular arc II (311) and circular arc I (411) equates that the center of circle of the center of circle of described circular arc III and circular arc IV equidistantly is positioned at the both sides, the center of circle of the determined circle of all steel balls (1) centre of sphere respectively.
9. according to claim 1 or the two pressure angle constant velocity universal joints of 2 or 3 or 5 or 6 or 7 or 8 described a kind of Rzeppa types, it is characterized in that: described outer race (4) oral area madial wall and oral area end face are by chamfering I (6) transition.
10. according to claim 1 or the two pressure angle constant velocity universal joints of 2 or 3 or 5 or 6 or 7 or 8 described a kind of Rzeppa types, it is characterized in that: the bottom of described outer alley bottom and outer race (4) is by chamfering II (7) transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101122641A CN103216540A (en) | 2013-04-01 | 2013-04-01 | Rzeppa universal joint with double pressure angles |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101122641A CN103216540A (en) | 2013-04-01 | 2013-04-01 | Rzeppa universal joint with double pressure angles |
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| CN103216540A true CN103216540A (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013101122641A Pending CN103216540A (en) | 2013-04-01 | 2013-04-01 | Rzeppa universal joint with double pressure angles |
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| CN (1) | CN103216540A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402181A (en) * | 2016-11-11 | 2017-02-15 | 安徽英克尔汽车零部件有限公司 | Spherical cage type spherical face oil groove constant velocity universal joint |
| CN106678192A (en) * | 2017-04-05 | 2017-05-17 | 苏州苏万万向节有限公司 | Dust proof and lubricating cardan joint for automobile |
| CN107614911A (en) * | 2015-04-08 | 2018-01-19 | Ntn轴承美国公司 | Grease indwelling component for the joint of vehicle drive shaft |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2297587Y (en) * | 1996-11-20 | 1998-11-18 | 李振怀 | Pin Rzeppa synchronous universal coupling |
| CN2396230Y (en) * | 1999-12-06 | 2000-09-13 | 李振怀 | Half-Rzeppa synchronous universal coupling |
| EP1512879A1 (en) * | 2003-09-04 | 2005-03-09 | Ntn Corporation | Fixed type constant velocity universal joint |
| CN1637309A (en) * | 2003-12-25 | 2005-07-13 | Ntn株式会社 | Fixed constant velocity universal joint |
| CN101268294A (en) * | 2005-09-22 | 2008-09-17 | Ntn株式会社 | Sliding-type constant velocity universal joint |
| CN201651035U (en) * | 2010-04-01 | 2010-11-24 | 洛阳巨创轴承科技有限公司 | Four-point contact ball bearing |
| CN202326789U (en) * | 2011-11-21 | 2012-07-11 | 黑旋风锯业股份有限公司 | Three-point contact rolling way spherical cage type constant speed universal joint |
| CN203114931U (en) * | 2013-04-01 | 2013-08-07 | 浙江欧迪恩传动科技股份有限公司 | Rzeppa type double-pressure-angle constant-velocity universal joint |
-
2013
- 2013-04-01 CN CN2013101122641A patent/CN103216540A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2297587Y (en) * | 1996-11-20 | 1998-11-18 | 李振怀 | Pin Rzeppa synchronous universal coupling |
| CN2396230Y (en) * | 1999-12-06 | 2000-09-13 | 李振怀 | Half-Rzeppa synchronous universal coupling |
| EP1512879A1 (en) * | 2003-09-04 | 2005-03-09 | Ntn Corporation | Fixed type constant velocity universal joint |
| CN1637309A (en) * | 2003-12-25 | 2005-07-13 | Ntn株式会社 | Fixed constant velocity universal joint |
| CN101268294A (en) * | 2005-09-22 | 2008-09-17 | Ntn株式会社 | Sliding-type constant velocity universal joint |
| CN201651035U (en) * | 2010-04-01 | 2010-11-24 | 洛阳巨创轴承科技有限公司 | Four-point contact ball bearing |
| CN202326789U (en) * | 2011-11-21 | 2012-07-11 | 黑旋风锯业股份有限公司 | Three-point contact rolling way spherical cage type constant speed universal joint |
| CN203114931U (en) * | 2013-04-01 | 2013-08-07 | 浙江欧迪恩传动科技股份有限公司 | Rzeppa type double-pressure-angle constant-velocity universal joint |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107614911A (en) * | 2015-04-08 | 2018-01-19 | Ntn轴承美国公司 | Grease indwelling component for the joint of vehicle drive shaft |
| CN107614911B (en) * | 2015-04-08 | 2019-06-18 | Ntn轴承美国公司 | The grease indwelling component of connector for vehicle drive shaft |
| CN106402181A (en) * | 2016-11-11 | 2017-02-15 | 安徽英克尔汽车零部件有限公司 | Spherical cage type spherical face oil groove constant velocity universal joint |
| CN106678192A (en) * | 2017-04-05 | 2017-05-17 | 苏州苏万万向节有限公司 | Dust proof and lubricating cardan joint for automobile |
| CN106678192B (en) * | 2017-04-05 | 2017-09-12 | 苏州苏万万向节有限公司 | A kind of automobile dust-proof lubricating universal joint |
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Application publication date: 20130724 |