CN212839004U

CN212839004U - Tooth-shaped elastic check ring

Info

Publication number: CN212839004U
Application number: CN202021270299.XU
Authority: CN
Inventors: 郝兴疆; 姜勇; 蒋长伟; 郝光全
Original assignee: Hubei Fengwei Automobile Technology Co ltd
Current assignee: Hubei Fengwei Automobile Technology Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-03-30
Anticipated expiration: 2030-07-02

Abstract

The utility model discloses a tooth-shaped elastic retainer ring, which comprises a circular retainer ring body, an inner tooth and an outer tooth; the inner teeth and the outer teeth are aligned in the radial direction of the retainer ring body; the outer end surface of the outer tooth back to the outer ring wall and the inner end surface of the inner tooth back to the inner ring wall are arc surfaces which are coaxial with the retainer ring body; a plurality of inner teeth are arranged along the circumferential direction of the inner ring of the retainer ring body at intervals; a plurality of external teeth are arranged along the outer ring of the retainer ring body at intervals; the internal teeth or the external teeth are elastic teeth. The utility model has the advantages that: the pin shaft is tightly connected with the corresponding matched bearing through the matching of the internal teeth and the external teeth which are arranged along the circumferential direction of the retainer ring body and are respectively aligned in the radial direction, so that the bearing or the pin shaft matched with the elastic retainer ring is prevented from axially moving; and the structure is simple and symmetrical, the cost is low, and the disassembly and the assembly are convenient.

Description

Tooth-shaped elastic check ring

Technical Field

The utility model relates to an automobile parts technical field specifically indicates a profile of tooth circlip.

Background

The retaining ring is used as a conventional fixing piece of the automobile pin shaft, and the structure and the shape of the retaining ring are various due to different fixing positions and fixing modes. When the automobile pin shaft is stressed unevenly or rotates forwards and backwards, axial movement is easy to occur, and the existing pin shaft retainer ring has a certain installation gap, so that the movement cannot be eliminated or reduced, the abrasion of relevant parts of the automobile is serious, and the service life is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a profile of tooth circlip, it has the characteristics that reduce round pin axle axial float.

In order to achieve the purpose, the tooth-shaped elastic retainer ring designed by the utility model comprises a circular retainer ring body, internal teeth and external teeth; the tooth root part of the external tooth is arranged on the outer ring wall of the retainer ring body, and the tooth crest part of the external tooth inclines towards the direction far away from the circle center of the retainer ring body; the tooth root part of the internal tooth is arranged on the inner ring wall of the retainer ring body, and the tooth top part of the internal tooth inclines towards the direction close to the circle center of the retainer ring body; the inner teeth and the outer teeth are aligned in a radial direction of the retainer body; the outer end surface of the outer tooth back to the outer ring wall and the inner end surface of the inner tooth back to the inner ring wall are arc surfaces which are coaxial with the retainer ring body; a plurality of inner teeth are arranged along the inner ring of the retainer ring body at intervals in the circumferential direction; a plurality of external teeth are arranged at intervals along the circumferential direction of the outer ring of the retainer ring body; the internal teeth or the external teeth are elastic teeth.

Furthermore, the inner end surface extension surface of the inner tooth and the outer end surface extension surface of the outer tooth of the retainer ring body in the same radial direction are intersected in space.

Further, the midline of the inner end surface extension surface and the midline of the outer end surface extension surface are intersected in space, and the included angle a is less than or equal to 60 degrees.

Furthermore, all the internal teeth are elastic teeth, and the external teeth comprise partial elastic teeth and partial hard teeth; the part of elastic teeth and the part of rigid teeth are alternately arranged.

Furthermore, a positioning groove is arranged on the retainer ring body.

Furthermore, the retainer ring body is provided with a mounting hole.

The utility model has the advantages that: the pin shaft is tightly connected with the corresponding matched bearing through the matching of the internal teeth and the external teeth which are arranged along the circumferential direction of the retainer ring body and are respectively aligned in the radial direction, so that the bearing or the pin shaft matched with the elastic retainer ring is prevented from axially moving; and the structure is simple and symmetrical, the cost is low, and the disassembly and the assembly are convenient.

Drawings

Fig. 1 is a schematic perspective view of the tooth-shaped elastic collar of the present invention.

Fig. 2 is a schematic perspective view of fig. 1 at another angle.

Fig. 3 is a schematic front view of the structure of fig. 1.

Fig. 4 is a schematic sectional view of the plane a-a in fig. 3.

Fig. 5 is a top view of fig. 3.

Fig. 6 is a schematic structural view of the retainer body in fig. 1, which is provided with a mounting hole and a positioning groove.

In the figure, a retainer ring body 1, internal teeth 2, external teeth 3, an outer ring wall 4, an inner ring wall 5, an arc surface 6, a positioning groove 7 and a mounting hole 8.

Detailed Description

The invention is described in further detail below with reference to the figures and the specific embodiments.

The toothed elastic check ring shown in fig. 1-6 comprises a circular check ring body 1, internal teeth 2 and external teeth 3; the tooth root part of the external tooth 3 is arranged on the outer ring wall 4 of the retainer ring body 1, and the tooth top part of the external tooth 3 inclines towards the direction far away from the circle center of the retainer ring body 1; the tooth root part of the internal tooth 2 is arranged on the inner ring wall 5 of the retainer ring body 1, and the tooth top part of the internal tooth 2 inclines towards the direction close to the circle center of the retainer ring body 1; the internal teeth 2 and the external teeth 3 are aligned in the radial direction of the retainer body 1; the outer end surface of the outer teeth 3 back to the outer ring wall 4 and the inner end surface of the inner teeth 2 back to the inner ring wall 5 are arc surfaces 6 which are coaxial with the retainer ring body 1; a plurality of inner teeth 2 are arranged along the circumferential direction of the inner ring of the retainer ring body 1 at intervals; a plurality of external teeth 3 are arranged along the outer ring of the retainer ring body 1 at intervals; the internal teeth 2 or the external teeth 3 are elastic teeth.

The inner end surface extension surface of the inner teeth 2 and the outer end surface extension surface of the outer teeth 3 in the same radial direction of the retainer ring body 1 are intersected in space. The midline of the inner end surface extension surface and the midline of the outer end surface extension surface are intersected in space, and the included angle a is less than or equal to 60 degrees.

The plurality of internal teeth 2 are all elastic teeth, and the plurality of external teeth 3 comprise partial elastic teeth and partial hard teeth; part of the elastic teeth and part of the rigid teeth are alternately arranged.

When the outer ring of the retainer ring body 1 is matched with the bearing and the inner ring of the retainer ring body 1 is matched with the automobile pin shaft, the outer teeth 3 and the inner teeth 2 are extruded, and the extrusion forces are intersected and further compress the retainer ring body 1; axial play can be effectively avoided. In addition, after the internal teeth 2 of the elastic teeth are extruded and deformed, the tooth tops of the internal teeth 2 are close to the inner ring wall 5 due to the fact that the tooth tops of the internal teeth 2 are spaced from the inner ring wall 5 of the elastic retainer ring, so that the contact surface of the arc surface 6 of the internal teeth 2 and the contact surface of the pin shaft are enlarged, and the problem of axial movement is further solved.

As shown in fig. 6, the retainer body 1 is further provided with a positioning groove 7 and a mounting hole 8 for facilitating mounting. During installation, the external teeth 3 are inserted into the tooth holes of the inner wall of the bearing matched with the pin shaft, and the pin shaft is inserted into the inner ring of the elastic check ring, so that the elastic check ring, the bearing and the pin shaft are fixed.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that a person skilled in the art should also recognize that several modifications and decorations can be made without departing from the principle of the present invention, and the protection scope of the present invention is also covered.

Claims

1. A tooth-shaped elastic check ring is characterized by comprising a circular check ring body (1), internal teeth (2) and external teeth (3); the tooth root part of the external tooth (3) is arranged on the outer ring wall (4) of the retainer ring body (1), and the tooth top part of the external tooth (3) inclines towards the direction far away from the circle center of the retainer ring body (1); the tooth root part of the internal tooth (2) is arranged on the inner ring wall (5) of the retainer ring body (1), and the tooth top part of the internal tooth (2) inclines towards the direction close to the circle center of the retainer ring body (1); the internal teeth (2) and the external teeth (3) are aligned in the radial direction of the retainer body (1); the outer end surface of the outer tooth (3) back to the outer ring wall (4) and the inner end surface of the inner tooth (2) back to the inner ring wall (5) are arc surfaces (6) which are coaxial with the retainer ring body (1); a plurality of inner teeth (2) are arranged along the circumferential direction of the inner ring of the retainer ring body (1) at intervals; a plurality of external teeth (3) are arranged at intervals along the circumferential direction of the outer ring of the retainer ring body (1); the inner teeth (2) or the outer teeth (3) are elastic teeth.

2. A toothed circlip according to claim 1, characterised in that the inner end surface extension of the inner teeth (2) and the outer end surface extension of the outer teeth (3) of the circlip body (1) in the same radial direction intersect in space.

3. A tooth-shaped elastic collar as claimed in claim 2, wherein said centerline of said inner end surface extension and said centerline of said outer end surface extension spatially intersect at an angle a of 60 ° or less.

4. A toothed circlip according to claim 1, characterised in that a plurality of said internal teeth (2) are all elastic teeth and a plurality of said external teeth (3) comprise partly elastic teeth and partly hard teeth; the part of elastic teeth and the part of rigid teeth are alternately arranged.

5. Toothed circlip according to claim 1, characterized in that the circlip body (1) is provided with positioning grooves (7).

6. Toothed circlip according to claim 1, characterized in that the circlip body (1) is provided with mounting holes (8).