Anti-rotation pawl wave cage

Abstract

The utility model provides a prevent axial rotation's take claw wave shape retainer, including mutually butt -joint male half retainer and female half retainer, male half retainer includes wavelike no. One frame body, and female half retainer includes wavelike no. Two frame bodies, be equipped with a plurality of no. One pocket hole for accommodating steel ball and be located between adjacent no. One pocket hole no. One beam on no. One frame body, be equipped with a plurality of no. Two pocket holes for accommodating steel ball and be located between adjacent no. Two pocket hole no. Two beams on no. Two frame bodies, no. One pocket hole and no. Two pocket holes match, no. One beam and no. Two beams match, the integral formation has the lock claw that bends to female half retainer direction on no. One beam, be equipped with the recess of matching the end of lock claw after bending on no. Two beams, and the end of lock claw is embedded in recess, can realize male, female half retainer between reliable circumferential locking, effectively prevented the relative axial rotation of both in the bearing operation process.

Description

Technical Field

[0001] This invention belongs to the field of cage technology, specifically a clawed wave-shaped cage for preventing axial rotation. Background Technology

[0002] When conventional deep groove ball bearings use wave-shaped cages, the cage is typically drilled and riveted together. However, for some miniature deep groove ball bearings, the size itself dictates a small cage structure. Using rivets presents two main challenges: firstly, it's difficult to procure rivets of the appropriate size, and secondly, the riveting method is limited. Currently used clawed cages only have claw structures on the outer diameter. This structure is prone to rotation in the circumferential direction, causing misalignment of the pockets between the two cage halves. During operation, the steel balls can easily scrape against the pockets, affecting the bearing's rotational flexibility and operational performance. Utility Model Content

[0003] In view of the above problems, the purpose of this application is to provide a clawed wave-shaped cage that prevents axial rotation, so that the male and female half cages can be reliably circumferentially locked, effectively preventing relative axial rotation between the two during bearing operation.

[0004] To achieve some or all of the above objectives or other objectives, this application provides the following technical solution: a clawed wave-shaped retainer for preventing axial rotation, comprising a male half-retainer and a female half-retainer that are mated together. The male half-retainer includes a wave-shaped first frame body, and the female half-retainer includes a wave-shaped second frame body. The first frame body has several first pockets for accommodating steel balls and a first beam located between adjacent first pockets. The second frame body has several second pockets for accommodating steel balls and a second beam located between adjacent second pockets. The first and second pockets are matched, and the first and second beams are matched. A locking claw is integrally formed on the first beam, bending towards the female half-retainer. The second beam has a groove that matches the end of the bent locking claw, and the end of the locking claw is embedded in the groove.

[0005] Furthermore, the locking claw is formed by bending and extending the radial outer side of the first beam.

[0006] Furthermore, all the locking claws have the same bending angle.

[0007] Furthermore, the cross-section of the locking claw is trapezoidal, and the dimension along the circumferential direction of the cage is such that the end of the locking claw closer to the first beam is larger than the end farther away from the first beam.

[0008] Furthermore, the end of the locking claw away from the first beam is chamfered.

[0009] Furthermore, a deep groove ball bearing is equipped with a clawed wave-shaped cage to prevent axial rotation.

[0010] Compared with existing technologies, the advantages of this invention are as follows: By setting bent locking claws on the integrally formed male half-cage beam and corresponding matching grooves on the female half-cage, the ends of the locking claws are embedded in them, forming a mechanical interlocking structure, thereby completely eliminating the risk of circumferential relative displacement between the two half-cages. This design not only improves the integrity and stability of the cage, preventing misalignment or wear of the pockets due to cage misalignment, but also enhances the cage's impact resistance and deformation resistance. The overall structure is simple and compact, requiring no additional parts, easy to process, and highly reliable, making it suitable for deep groove ball bearing applications under harsh conditions such as high speed and high load. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the locking claw of this utility model when it is not bent; Figure 2 This is a schematic diagram of the structure of the lock claw end of this utility model when it is embedded in the groove; Figure 3 This is a front view of the locking claw end of this utility model when it is embedded in the groove; Figure 4 A schematic diagram of the mother half-cage structure; Figure 5 A schematic diagram of the male semi-cage; In the diagram: 1. Male half-cage, 2. Female half-cage, 3. No. 1 pocket, 4. No. 1 beam, 5. No. 2 pocket, 6. No. 2 beam, 7. Locking claw, 8. Groove. Detailed Implementation

[0012] To make the structure and function of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0013] See appendix Figure 1-3 A clawed wave-shaped retainer for preventing axial rotation includes a male half-retainer 1 and a female half-retainer 2 that are mated together. The male half-retainer 1 includes a wave-shaped first frame body, and the female half-retainer 2 includes a wave-shaped second frame body. The first frame body has several first pockets 3 for accommodating steel balls and a first beam 4 located between adjacent first pockets 3. The second frame body has several second pockets 5 for accommodating steel balls and a second beam 6 located between adjacent second pockets 5. The first pockets 3 and second pockets 5 are matched, and the first beams 4 and second beams 6 are matched. A locking claw 7 is integrally formed on the first beam 4, bending towards the female half-retainer 2. The second beam 6 has a groove 8 that matches the end of the bent locking claw 7, and the end of the locking claw 7 is embedded in the groove 8.

[0014] The locking claw 7 is formed by bending and extending the radial outer side of the first beam 4.

[0015] All the locking claws 7 have the same bending angle.

[0016] The cross-section of the locking claw 7 is trapezoidal, and the dimension along the circumferential direction of the cage is such that the end of the locking claw 7 closer to the first beam 4 is larger than the end farther away from the first beam 4.

[0017] The end of the locking claw 7 away from the first beam 4 is chamfered.

[0018] A deep groove ball bearing equipped with a clawed wave-shaped cage to prevent axial rotation.

[0019] This structure is suitable for miniature deep groove ball bearings, where the cage size is small and rivets cannot be used.

[0020] Due to the small size of the bearings, the structure and dimensions are limited when using a wave-shaped cage, making conventional riveting structures unsuitable. Considering the limitations of riveting operations, a claw-type half-cage structure is adopted to prevent axial rotation. The male half-cage has a claw structure, and the female half-cage has a groove structure that matches the claw. When the pockets of the male and female half-cages are aligned, the claw is wound into the groove, effectively preventing misalignment of the two half-cages in the axial direction.

[0021] Installation instructions: Place the steel ball into the male half-cage with claws, bend the several locking claws on the male half-cage at 90 degrees so that they are perpendicular to the beam of the male half-cage, and place them into the fixture; then precisely align the female half-cage (with the grooved side facing down) with the male half-cage, and after aligning the pocket positions, press the several locking claws into the grooves simultaneously through the fixture.

[0022] This ensures that the male and female half-cages are combined to form an assembly with the steel balls, while also preventing axial misalignment that could cause interference between the steel balls and the pocket during operation, thus affecting the normal operation of the bearing.

[0023] Several locking claws are simultaneously bent and embedded into the groove using a jig. A general-purpose jig of the appropriate size is sufficient; no special design is required. Pressing each claw individually with a tool is time-consuming, labor-intensive, and makes it difficult to control the pressing precision. Using a jig provides more precise pressing and more even pressure.

[0024] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

Claims

1. A clawed corrugated cage for preventing axial rotation, characterized in that: The device includes a male half-cage (1) and a female half-cage (2) that are connected to each other. The male half-cage (1) includes a wave-shaped first frame body, and the female half-cage (2) includes a wave-shaped second frame body. The first frame body is provided with several first pockets (3) for accommodating steel balls and a first beam (4) located between adjacent first pockets (3). The second frame body is provided with several second pockets (5) for accommodating steel balls and a second beam (6) located between adjacent second pockets (5). The first pockets (3) and second pockets (5) are matched, and the first beam (4) and second beam (6) are matched. A locking claw (7) bent toward the female half-cage (2) is integrally formed on the first beam (4). A groove (8) is provided on the second beam (6) that matches the end of the bent locking claw (7). The end of the locking claw (7) is embedded in the groove (8).

2. The anti-axial rotation corrugated cage with claws according to claim 1, characterized in that: The locking claw (7) is formed by bending and extending the radial outer side of the first beam (4).

3. The anti-axial rotation corrugated cage with claws according to claim 1, characterized in that: All the locking claws (7) have the same bending angle.

4. The clawed wave-shaped retainer for preventing axial rotation according to claim 1, characterized in that: The cross-section of the locking claw (7) is trapezoidal, and the dimension along the circumferential direction of the cage is such that the end of the locking claw (7) closer to the first beam (4) is larger than the end farther away from the first beam (4).

5. The anti-axial rotation corrugated cage with claws according to claim 1, characterized in that: The end of the locking claw (7) away from the first beam (4) is chamfered.

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