CN111365377A - Rzeppa constant velocity joint - Google Patents
Rzeppa constant velocity joint Download PDFInfo
- Publication number
- CN111365377A CN111365377A CN201811597510.6A CN201811597510A CN111365377A CN 111365377 A CN111365377 A CN 111365377A CN 201811597510 A CN201811597510 A CN 201811597510A CN 111365377 A CN111365377 A CN 111365377A
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- Prior art keywords
- arc
- channel
- constant velocity
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- star
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
- F16D2003/22309—Details of grooves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a ball cage type constant velocity universal joint, which comprises a bell-shaped shell, a retainer, a steel ball and an inner race; the method is characterized in that: the inner channel of the bell-shaped shell is an arc channel, the outer channel of the star-shaped sleeve is a double-center arc channel, the intersection point of the left arc line and the right arc line of the double-center arc channel is intersected on the O1 line, the centers of the steel balls in two adjacent outer channels of the star-shaped sleeve are different in position, the centers of part of the steel balls are intersected on the O1 line, the centers of part of the steel balls are intersected on the O2 line, and the linear distance between the O1 line and the O2 line is L; circular arc channel is selected for use through the interior channel with the bell housing, and selects for use the outer channel of star cover double-centre arc channel, through providing the ball cage constant velocity universal joint of the channel cross-section form of a steel ball with three point contact, has improved the inside contact condition of constant velocity universal joint, has effectively reduced inside contact stress, and then can improve this ball cage constant velocity universal joint's bearing capacity, prolongs its life simultaneously.
Description
Technical Field
The invention relates to the technical field of universal joints, in particular to a ball cage type constant velocity universal joint.
Background
Because its processing degree of difficulty of rzeppa constant velocity universal joint is big, it is high to make required precision, and rzeppa constant velocity universal joint will make the universal joint produce great vibration and noise in the course of the work in the clearance reason of direction of gyration, when the universal joint was too big in the direction of gyration's clearance, can take place the interference phenomenon between the universal joint is inside to further increase noise and the impact that this constant velocity universal joint will produce. In addition, the universal joint is subject to vibration from other external conditions.
Disclosure of Invention
The technical problem to be solved by the invention is; in order to overcome the defects in the prior art, the invention provides a ball cage type constant velocity universal joint.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the rzeppa constant velocity universal joint comprises a bell housing, a retainer, a steel ball and an inner race; the outer side of the retainer is provided with an outer bell-shaped shell, the inner side of the retainer is provided with an inner star-shaped sleeve, the steel balls pass through all notches of the retainer and are uniformly distributed along the circumferential direction of the retainer, and the steel balls are in contact fit with corresponding channels of the outer bell-shaped shell and the inner star-shaped sleeve; the method is characterized in that: the inner channel of the bell-shaped shell is an arc channel, the outer channels of the star-shaped sleeve are double-center arc channels, the intersection point of the left arc line and the right arc line of the double-center arc channel is intersected on the O1 line, the centers of the steel balls in two adjacent outer channels of the star-shaped sleeve are different in position, the centers of part of the steel balls are intersected on the O1 line, the centers of part of the steel balls are intersected on the O2 line, and the linear distance between the O1 line and the O2 line is L.
Further, the left arc and the right arc of the double-center arc channel have different radiuses.
Further, the radius of the left arc of the bi-center arc channel is smaller than the radius of the right arc.
Further, the spacing between the inner channel of the outer race and the outer channel of the inner race increases gradually in the left-to-right direction.
Furthermore, a positioning groove is further formed in the left side of the inner channel of the outer shell, and the positioning groove is an arc-shaped channel.
Further, the right end of the outer shell is provided with a tapered open end.
Furthermore, the left end of the star-shaped sleeve is provided with an arc-shaped raised head, and the right end of the star-shaped sleeve is provided with an arc-shaped convex strip.
Furthermore, a skirt portion is arranged at the left end of the star-shaped sleeve, and the arc-shaped raised heads are uniformly arranged on the periphery of the skirt portion at equal intervals.
Further, the radial dimension of the arc-shaped raised head is slightly larger than that of the arc-shaped convex strip.
Further, the outer channel of the star-shaped sleeve is formed between two adjacent arc-shaped convex strips.
The invention has the advantages that;
(1) circular arc channel is selected for use through the interior channel with the bell housing, and selects for use the outer channel of star cover double-centre arc channel, through providing the ball cage constant velocity universal joint of the channel cross-section form of a steel ball with three point contact, has improved the inside contact condition of constant velocity universal joint, has effectively reduced inside contact stress, and then can improve this ball cage constant velocity universal joint's bearing capacity, prolongs its life simultaneously.
(2) Arranging the channels in the rzeppa constant velocity universal joint into offset channels and non-offset channels which are equally divided in the circumferential direction and alternately distributed; compared with the original structure, the ball number of the axial thrust generated in the universal joint is reduced, the stress at the notch of the retainer is correspondingly reduced, meanwhile, the frictional resistance between the outer surface of the retainer and the inner spherical surface of the bell-shaped shell and between the inner surface of the retainer and the outer spherical surface of the inner race is also correspondingly reduced, and the efficiency of the ball cage type constant velocity universal joint is improved.
Drawings
Fig. 1 is a structural sectional view of a birfield constant velocity joint of the present invention, as viewed from one direction;
fig. 2 is a structural sectional view of the birfield constant velocity joint of the present invention, as viewed from another direction.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1-2, the birfield constant velocity universal joint includes an outer race 1, a cage 2, a steel ball 3, and an inner race 4; the outer side of the retainer 2 is provided with an outer bell-shaped shell 1, the inner side of the retainer 2 is provided with an inner star-shaped sleeve 4, the steel balls 3 penetrate through all notches of the retainer 2 and are uniformly distributed along the circumferential direction of the retainer 2, and the steel balls 3 are in contact fit with corresponding channels of the outer bell-shaped shell 1 and the inner star-shaped sleeve 4; the inner channel 11 of the outer bell-shaped shell 1 is an arc channel, and the outer channel 41 of the inner bell-shaped shell 4 is a double-center arc channel, so that the ball cage type constant velocity universal joint with the section of the channel with the steel ball in three-point contact is provided, the contact condition inside the constant velocity universal joint is improved, the internal contact stress is effectively reduced, the bearing capacity of the ball cage type constant velocity universal joint can be improved, and the service life of the ball cage type constant velocity universal joint is prolonged; the intersection point of the left arc line 411 and the right arc line 412 of the double-center arc channel is intersected on the O1 line, the centers of the steel balls 3 in the two adjacent outer channels 41 of the star-shaped sleeve 4 are different, the centers of part of the steel balls 3 are intersected on the O1 line, the centers of part of the steel balls 3 are intersected on the O2 line, the linear distance between the O1 line and the O2 line is L, and the channels in the ball cage type constant velocity universal joint are divided into offset channels and non-offset channels in the circumferential direction and are distributed alternately; compared with the original structure, the ball number of the axial thrust generated in the universal joint is reduced, the stress at the notch of the retainer is correspondingly reduced, meanwhile, the frictional resistance between the outer surface of the retainer and the inner spherical surface of the bell-shaped shell and between the inner surface of the retainer and the outer spherical surface of the inner race is also correspondingly reduced, and the efficiency of the ball cage type constant velocity universal joint is improved.
Specifically, the left arc 411 and the right arc 412 of the bi-centric arc channel have different radii; preferably, the radius of left arc 411 of the bi-center arc channel is smaller than the radius of right arc 412; and specifically, the spacing between the inner channel 11 of the outer race 1 and the outer channel 41 of the inner race 4 increases gradually in the left-to-right direction, so that while the number of steel balls of leftward axial thrust generated inside the universal joint is reduced, sufficient space is reserved for the arrangement position of the offset channel inner steel balls 3 by the larger radius of the right arc 412 and the gradually increasing spacing between the inner channel 11 of the outer race 1 and the outer channel 41 of the inner race 4 in the left-to-right direction.
Specifically, the left side of the inner channel 11 of the outer shell 1 is further provided with a positioning groove 12, and the positioning groove 12 is an arc channel, so that the retainer 2, the steel ball 3 and the inner race 4 are prevented from further falling into the left side of the outer shell 1, and the positioning groove 12 is arranged as the arc channel, so that the collision and abrasion between the retainer 2, the steel ball 3 and the inner race 4 and the inner wall of the outer shell 1 during installation are effectively avoided.
Specifically, the right end of the outer race 1 is provided with a tapered open end 13, so that the holder 2, the steel balls 3, and the inner race 4 are easily fitted into the inner portion of the outer race 1 through one large open end.
Specifically, the left end of the inner race 4 is provided with an arc-shaped protrusion 42, and the right end of the inner race 4 is provided with an arc-shaped protruding strip 43, so that an outer channel 41 is formed between the adjacent 2 arc-shaped protruding strips 43.
Specifically, the left end of the inner race 4 is provided with a skirt 40, and the arc-shaped protruding heads 42 are uniformly arranged on the circumference of the skirt 40 at equal intervals, so as to reserve an installation position and a space for the arc-shaped protruding heads 42.
Specifically, the radial dimension of the arc-shaped raised head 42 is slightly larger than the radial dimension of the arc-shaped raised line 43, so that the function of positioning the steel ball 3 is achieved, and the steel ball 3 is prevented from further falling into the inner part of the outer shell 1 towards the left end.
Specifically, the outer groove 41 of the inner race 4 is formed between two adjacent arc-shaped protruding strips 43, so that the arc-shaped protruding strips 43 and the outer groove 41 together form a moving space of the steel ball 3, and the stress generated in the moving process of the steel ball 3 inside the constant velocity universal joint is controlled and adjusted together through the surfaces of the protruding strips and the surfaces of the grooves.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A ball-cage constant velocity universal joint comprises an outer race (1), a retainer (2), a steel ball (3) and a star sleeve (4); the outer side of the retainer (2) is provided with an outer bell-shaped shell (1), the inner side of the retainer (2) is provided with an inner star-shaped sleeve (4), the steel balls (3) penetrate through all notches of the retainer (2) and are uniformly distributed along the circumferential direction of the retainer (2), and the steel balls (3) are in contact fit with corresponding channels of the outer bell-shaped shell (1) and the inner star-shaped sleeve (4); the method is characterized in that: the inner channel (11) of the bell-shaped shell (1) is an arc channel, the outer channel (41) of the star-shaped sleeve (4) is a double-center arc channel, the intersection point of the left arc line (411) and the right arc line (412) of the double-center arc channel is intersected on an O1 line, the positions of the centers of circles of the steel balls (3) in two adjacent outer channels (41) of the star-shaped sleeve (4) are different, the positions of the centers of circles of part of the steel balls (3) are intersected on an O1 line, the positions of the centers of circles of part of the steel balls (3) are intersected on an O2 line, and the linear distance between the O1 line and the O2 line is L.
2. A birfield constant velocity joint according to claim 1, wherein: the left arc (411) and the right arc (412) of the bi-centric arc channel have different radii.
3. A birfield constant velocity joint according to claim 2, wherein: the radius of the left arc (411) of the bi-centric arc channel is smaller than the radius of the right arc (412).
4. A birfield constant velocity joint according to claim 2, wherein: the distance between the inner channel (11) of the outer shell (1) and the outer channel (41) of the inner star-shaped sleeve (4) is gradually increased along the left-to-right direction.
5. A birfield constant velocity joint according to claim 1, wherein: and a positioning groove (12) is further arranged on the left side of the inner channel (11) of the outer shell (1), and the positioning groove (12) is an arc channel.
6. A birfield constant velocity joint according to claim 1, wherein: the right end of the outer shell (1) is provided with a conical opening end (13).
7. A birfield constant velocity joint according to claim 1, wherein: the left end of the star-shaped sleeve (4) is provided with an arc-shaped raised head (42), and the right end of the star-shaped sleeve (4) is provided with an arc-shaped convex strip (43).
8. A birfield constant velocity joint according to claim 7, wherein: the left end of the star-shaped sleeve (4) is provided with a skirt portion (40), and the arc-shaped raised heads (42) are uniformly arranged on the circumferential direction of the skirt portion (40) at equal intervals.
9. A birfield constant velocity joint according to claim 7, wherein: the radial size of the arc convex head (42) is slightly larger than that of the arc convex strip (43).
10. A birfield constant velocity joint according to claim 7, wherein: the outer channel (41) of the star-shaped sleeve (4) is formed between two adjacent arc-shaped convex strips (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597510.6A CN111365377A (en) | 2018-12-26 | 2018-12-26 | Rzeppa constant velocity joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811597510.6A CN111365377A (en) | 2018-12-26 | 2018-12-26 | Rzeppa constant velocity joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111365377A true CN111365377A (en) | 2020-07-03 |
Family
ID=71204137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811597510.6A Pending CN111365377A (en) | 2018-12-26 | 2018-12-26 | Rzeppa constant velocity joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111365377A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5122096A (en) * | 1989-11-30 | 1992-06-16 | Lohr & Bromkamp Gmbh | Constant velocity ratio universal joint |
| JP2007309366A (en) * | 2006-05-16 | 2007-11-29 | Ntn Corp | Constant velocity joint |
| CN102575720A (en) * | 2009-10-08 | 2012-07-11 | Ntn株式会社 | Fixed type constant velocity universal joint |
| CN103562580A (en) * | 2011-05-30 | 2014-02-05 | Ntn株式会社 | Fixed constant velocity universal joint |
-
2018
- 2018-12-26 CN CN201811597510.6A patent/CN111365377A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5122096A (en) * | 1989-11-30 | 1992-06-16 | Lohr & Bromkamp Gmbh | Constant velocity ratio universal joint |
| JP2007309366A (en) * | 2006-05-16 | 2007-11-29 | Ntn Corp | Constant velocity joint |
| CN102575720A (en) * | 2009-10-08 | 2012-07-11 | Ntn株式会社 | Fixed type constant velocity universal joint |
| CN103562580A (en) * | 2011-05-30 | 2014-02-05 | Ntn株式会社 | Fixed constant velocity universal joint |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200703 |