CN217519086U - Gapless rzeppa universal joint for steering column - Google Patents
Gapless rzeppa universal joint for steering column Download PDFInfo
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- CN217519086U CN217519086U CN202221846523.4U CN202221846523U CN217519086U CN 217519086 U CN217519086 U CN 217519086U CN 202221846523 U CN202221846523 U CN 202221846523U CN 217519086 U CN217519086 U CN 217519086U
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- connecting shaft
- bell
- star
- retainer
- shaped shell
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Abstract
The utility model relates to the technical field of automobile parts, in particular to a gapless ball cage type universal joint for a steering column, which comprises a bell-shaped shell, a retainer, a star-shaped sleeve and a connecting shaft I; the outer side of the star-shaped sleeve is sleeved with a retainer; the outer side of the retainer is sleeved with a bell-shaped shell; a plurality of connecting steel balls are uniformly distributed on the retainer; the inner end surface and the outer end surface of the connecting steel ball are respectively abutted against the star-shaped sleeve and the bell-shaped shell; a connecting shaft I is arranged in the star-shaped sleeve; a mounting hole and a threaded hole are sequentially formed in the connecting shaft I from the end part close to the bell-shaped shell; the outer side end of the connecting shaft I is fixedly connected with a connecting shaft II in a mode that a gap eliminating bolt is in threaded connection with a threaded hole; the end face of the inner side of the connecting shaft II is abutted to the star-shaped sleeve; the supporting columns are connected in the mounting holes in a sliding mode; a compression bolt is arranged between the support column and the anti-backlash bolt; an anti-backlash steel ball is arranged between the supporting column and the bell-shaped shell. The utility model discloses clearance when effectively having eliminated the assembly has improved fastening nature, need not to improve the parts machining precision, has improved assembly efficiency, has prolonged life.
Description
Technical Field
The utility model relates to the technical field of auto parts, concretely relates to zero clearance rzeppa universal joint for steering column.
Background
The steering column is a connecting part arranged between a steering wheel and a steering transmission shaft and is mainly used for controlling the advancing direction of an automobile, transmitting torque and absorbing energy generated when the automobile is impacted.
The ball cage universal joint is connected with the driving shaft and the driven shaft respectively through a ball cage outer ring, a star-shaped inner ring and a retainer, the centers of force transmission steel balls are all positioned in a plane passing through the center of the coupler and are arranged in a raceway formed by spherical outer rings and star-shaped inner ring outer spherical surface grooves, the centers of two spherical surfaces are superposed with the center of the universal coupler, and in order to ensure that the centers of all the steel balls are positioned on a plane bisecting an included angle between two shaft axes, the steel balls are arranged in a window of the retainer, so that when the included angle between the driving shaft and the driven shaft of the coupler is changed, a force transmission point can be always positioned on the bisecting line of the included angle, and therefore, the rotating speeds between the driving shaft and the driven shaft of the ball cage universal joint can be kept synchronous.
In the prior art, the conventional Rzeppa universal joint has certain tolerance in manufacturing, so that the Rzeppa universal joint has a gap in assembly and abnormal sound or vibration phenomenon in the use process; meanwhile, the method of reducing or eliminating the gap by improving the machining accuracy of the parts may result in an increase in manufacturing cost, a decrease in production efficiency, and a decrease in assembly efficiency.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a gapless rzeppa universal joint for a steering column to solve the above problems.
The technical scheme of the utility model as follows:
the utility model provides a steering column is with zero clearance rzeppa universal joint which characterized in that: the device comprises a bell-shaped shell, a retainer, a star-shaped sleeve and a connecting shaft I;
the retainer is sleeved on the outer side of the star-shaped sleeve; a plurality of connecting steel balls are uniformly distributed on the retainer, and the spherical surface of the connecting steel balls positioned on the inner side of the retainer is connected with the star-shaped sleeve; the bell-shaped shell is sleeved outside the retainer; the spherical surface of the connecting steel ball positioned outside the retainer is connected with the bell-shaped shell;
the connecting shaft I is arranged in the star-shaped sleeve; the connecting shaft I is sequentially provided with a mounting hole and a threaded hole from one end of the inner side of the bell-shaped shell to one end of the outer side of the bell-shaped shell; the mounting hole is connected with the threaded hole in a penetrating way; one end of the connecting shaft I, which is provided with a threaded hole, is sleeved with a connecting shaft II; the end part of the inner side of the connecting shaft II abuts against the end surface of the side of the star-shaped sleeve; the connecting shaft I and the connecting shaft II are fixedly connected in a mode of connecting the connecting shaft I and the connecting shaft II with threaded holes through anti-backlash bolts; a support column is connected in the mounting hole in a sliding manner; a compression spring is arranged between the supporting column and the bolt; and an anti-backlash steel ball is arranged in the mounting hole between the support column and the inner curved surface of the bell-shaped shell, and the left spherical surface and the right spherical surface of the anti-backlash steel ball are respectively abutted against the inner curved surface of the bell-shaped shell and the support column.
As a further improvement of the utility model, the utility model also comprises a dustproof cover; the dustproof sleeve is fixedly connected to the outer side of the bell-shaped shell; one end of the dustproof sleeve is fixedly connected to the outer end face of the bell-shaped shell, and the other end of the dustproof sleeve is fixedly connected to the outer end face of the connecting shaft II.
As a further improvement, the connecting shaft II is arranged at one end outside the dustproof sleeve and is provided with a connecting hole for connecting a steering shaft.
As a further improvement, the connecting hole is internally provided with an internal spline.
According to the technical scheme, compared with the prior art, the invention has the following advantages:
the utility model can effectively eliminate the clearance between the star-shaped sleeve, the connecting shaft I and the connecting shaft II through the arrangement of the clearance eliminating bolt; through the arrangement of the compression spring, the support column and the anti-backlash steel ball, the circumferential clearance between the bell-shaped shell and the internal part can be effectively reduced. The utility model effectively eliminates the clearance between each part of the rzeppa universal joint, improves the matching tightness of each part and prevents the occurrence of jitter or abnormal sound; meanwhile, the problems of increased production cost and reduced production efficiency caused by eliminating the clearance by improving the machining precision of parts are solved; the utility model discloses assembly efficiency has effectively been improved, the life of rzeppa universal joint has been prolonged.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
FIG. 2 is a sectional view of a connecting shaft I;
fig. 3 is a sectional view of the connecting shaft ii.
The labels in the figure are:
1. bell housing 2, retainer 3, star-shaped sleeve 4 and connecting shaft I
5. Connecting steel ball 6, connecting shaft II 7, anti-backlash bolt 8 and support column
9. Compression spring 10, anti-backlash steel ball 11, dust-proof sleeve 401 and mounting hole
402. Threaded hole 403, limiting block 404, connecting boss 601 and connecting hole
602. Internal spline
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention to be solved clearer, the present invention will be further described with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
It is to be understood that the terms "upper end surface, top end, left and right ends, left side, right side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, a gapless rzeppa universal joint for a steering column includes an outer race 1, a retainer 2, an inner race 3, a connecting shaft i 4, and a connecting shaft ii 6; the axes of the bell-shaped shell 1, the retainer 2, the star sleeve 3, the connecting shaft I4 and the connecting shaft II 6 are all overlapped.
As shown in fig. 1, the star sleeve 3 is provided with a through hole along the axial direction thereof for mounting a connecting shaft i 4; six circular arc raceways for connecting and connecting the steel balls 5 are uniformly distributed on the star-shaped sleeve 3.
As shown in fig. 1, the retainer 2 is sleeved outside the inner race 3 and is spaced from the inner race 3; six connecting steel balls 5 are arranged on the retainer 2; the inner spherical surface of the connecting steel ball 5 is abutted against the arc raceway of the star-shaped sleeve 3, and the connecting steel ball 5 can move in the arc raceway of the star-shaped sleeve 3. The retainer 2 is used for isolating the six connecting steel balls 5 and guiding the connecting steel balls 5 to move.
As shown in fig. 1, the outer race 1 is sleeved on the outer side of the retainer 2 and is arranged at an interval with the retainer 2; the outer spherical surface of the connecting steel ball 5 is abutted against the inner curved surface of the outer bell-shaped shell 1, and the connecting steel ball 5 can move on the inner curved surface of the outer bell-shaped shell 1.
As shown in fig. 2, a limiting block 403 is circumferentially arranged on the left circumferential surface of the connecting shaft i 4, and a connecting boss 404 for connecting a through hole of the inner race 3 is circumferentially arranged on the right side of the limiting block 403; the width of the connection boss 404 is smaller than the width of the through hole of the inner race 3. A mounting hole 401 and a threaded hole 402 are sequentially formed in the connecting shaft I4 from the left end to the right end in the axial direction, and the mounting hole 401 is in through connection with the threaded hole 402. Referring to fig. 1, the connecting shaft i 4 is inserted into the through hole of the inner race 3, and the left end surface of the inner race 3 is limited by the limiting block 403.
As shown in fig. 1, a connecting shaft II 6 is sleeved at the right end of the connecting shaft I4 provided with the threaded hole 402; the connecting shaft II 6 is fixedly connected with the connecting shaft I4 in a way that the anti-backlash bolt 7 is in threaded connection with the threaded hole 402; the left end face of the connecting shaft II 6 is tightly abutted with the right end face of the star-shaped sleeve 3.
In this embodiment, the original integrally designed connecting shafts for connecting the star sleeve 3 are respectively set as the connecting shaft I4 and the connecting shaft II 6 and connected through the anti-backlash bolt 7, so that the connecting gap between the star sleeve 3 and the integrally designed connecting shafts is effectively eliminated.
As a further optimization of the present invention, referring to fig. 3, it can be known that the right end of the connecting shaft ii 6 is provided with a connecting hole 601 along the axial direction for connecting the steering shaft, and the connecting hole 601 is internally provided with an internal spline 602 along the circumferential direction. The steering shaft is fixedly connected with the connecting shaft II 6 in a mode that the external splines are meshed with the internal splines 602.
As shown in fig. 1, a support column 8 is slidably connected in the mounting hole 401, and a compression spring 9 is arranged between the support column 8 and the right end of the anti-backlash bolt 7; a clearance eliminating steel ball 10 is also movably connected in the mounting hole 401 and is positioned on the left end surface of the support column 8; the left spherical surface of the anti-backlash steel ball 10 is abutted against the inner curved surface of the bell-shaped shell 1, and the right spherical surface is abutted against the left end surface of the support column 8.
In this embodiment, through the cooperation of gap eliminating steel ball 10, support column 8, compression spring 9 and gap eliminating bolt 7 use, can effectively eliminate the circumference clearance when bell housing 1 and star cover 3 assemble to through the original clearance change of compression spring 9 self-adaptation, strong adaptability has effectively improved assembly efficiency, has strengthened the fastening, has prolonged the life of rzeppa universal joint.
As a further optimization of the utility model, referring to fig. 1, the utility model can be known to comprise a dustproof cover 11, both ends of the dustproof cover 11 are open; the left end opening of the dustproof sleeve 11 is sleeved on the outer side surface of the bell-shaped shell 1 and is fixedly connected with the bell-shaped shell 1; the right end opening of the dustproof sleeve 11 is sleeved on the connecting shaft II 6 and is fixedly connected with the connecting shaft II 6. Dust cover 11 can prevent effectively that dust, silt from influencing the use of rzeppa universal joint, further prolongs the life of rzeppa universal joint.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (4)
1. The utility model provides a steering column is with zero clearance rzeppa universal joint which characterized in that: comprises a bell-shaped shell (1), a retainer (2), a star-shaped sleeve (3) and a connecting shaft I (4);
the retainer (2) is sleeved on the outer side of the star-shaped sleeve (3); a plurality of connecting steel balls (5) are uniformly distributed on the retainer (2), and the spherical surface of the connecting steel balls (5) positioned on the inner side of the retainer (2) is connected with the star-shaped sleeve (3); the outer side of the retainer (2) is sleeved with the bell-shaped shell (1); the spherical surface of the connecting steel ball (5) positioned at the outer side of the retainer (2) is connected with the bell-shaped shell (1);
the connecting shaft I (4) is arranged in the star-shaped sleeve (3); the connecting shaft I (4) is sequentially provided with a mounting hole (401) and a threaded hole (402) from one end of the inner side to one end of the outer side of the bell-shaped shell (1); the mounting hole (401) is connected with the threaded hole (402) in a penetrating manner; one end of the connecting shaft I (4) provided with a threaded hole (402) is sleeved with a connecting shaft II (6); the end part of the inner side of the connecting shaft II (6) is abutted against the end face of the side of the star-shaped sleeve (3); the connecting shaft I (4) and the connecting shaft II (6) are fixedly connected in a mode of connecting the anti-backlash bolt (7) with the threaded hole (402); a support column (8) is connected in the mounting hole (401) in a sliding manner; a compression spring (9) is arranged between the supporting column (8) and the bolt; a gap eliminating steel ball (10) is arranged in a mounting hole (401) between the support column (8) and the inner curved surface of the bell-shaped shell (1); spherical surfaces on two sides of the anti-backlash steel ball (10) are respectively abutted with the inner curved surface of the bell-shaped shell (1) and the support column (8).
2. A gapless birfield joint for a steering column according to claim 1 wherein: also comprises a dustproof sleeve (11); the dustproof sleeve (11) is fixedly connected to the outer side of the bell-shaped shell (1); one end of the dustproof sleeve (11) is fixedly connected to the outer end face of the bell-shaped shell (1), and the other end of the dustproof sleeve is fixedly connected to the outer end face of the connecting shaft II (6).
3. A gapless birfield joint for a steering column according to claim 1 wherein: and one end of the connecting shaft II (6) positioned at the outer side of the dustproof sleeve (11) is provided with a connecting hole (601) used for connecting a steering shaft.
4. A gapless birfield joint for a steering column according to claim 3 wherein: an internal spline (602) is arranged in the connecting hole (601).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221846523.4U CN217519086U (en) | 2022-07-18 | 2022-07-18 | Gapless rzeppa universal joint for steering column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221846523.4U CN217519086U (en) | 2022-07-18 | 2022-07-18 | Gapless rzeppa universal joint for steering column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217519086U true CN217519086U (en) | 2022-09-30 |
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ID=83393224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221846523.4U Active CN217519086U (en) | 2022-07-18 | 2022-07-18 | Gapless rzeppa universal joint for steering column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217519086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117052805A (en) * | 2023-10-11 | 2023-11-14 | 万向钱潮股份公司 | Ball cage universal joint and vehicle |
-
2022
- 2022-07-18 CN CN202221846523.4U patent/CN217519086U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117052805A (en) * | 2023-10-11 | 2023-11-14 | 万向钱潮股份公司 | Ball cage universal joint and vehicle |
| CN117052805B (en) * | 2023-10-11 | 2024-01-26 | 万向钱潮股份公司 | Ball cage universal joint and vehicle |
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