Assembled cylindrical bearing retainer

Abstract

The utility model discloses an assembly type cylindrical bearing retainer, which relates to the technical field of bearings and comprises a retainer seat and a retainer cover, the retainer seat comprises a bottom ring and hole beams which are integrally formed, a plurality of hole beams are arranged on the bottom ring along the circumferential direction at equal intervals, and a plurality of pockets for retaining rollers are formed among the hole beams; a C-shaped opening with an upward opening is formed in the top of the hole beam; the retainer cover comprises a connecting ring and cover bodies, the connecting ring is fixedly sleeved with the cover bodies distributed at equal intervals in the circumferential direction, the connecting ring is clamped in the C-shaped opening, and at the moment, the cover bodies are located at the tops of the pockets to lock the rollers; the C-shaped opening in the top of the retainer seat is matched with the connecting ring of the retainer cover, and a pressing type design is adopted, so that split assembly of the retainer seat and the retainer cover is realized, disassembly is convenient, mounting and replacement of a roller are greatly facilitated, the bearing retainer does not need to be damaged or replaced, the bearing production efficiency is effectively improved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to an assembled cylindrical bearing retainer. Background Art

[0002] The bearing cage, also known as the bearing retainer, is a crucial component in bearings. It fully or partially encloses the balls and rotates with the bearing. Existing cages are mostly one-piece structures made of copper and iron. This makes bearing installation very inconvenient, with rollers frequently falling off, making installation difficult and replacement challenging. They are also heavy, making them unsuitable for high-speed operation, wear-resistant, noisy, and inconvenient to use.

[0003] In addition, some existing split retainers, such as the cylindrical roller bearing retainer disclosed in CN202790114U, are fixed by riveting the square rivet head to the covered conical countersunk hole through deformation. Although this structure is assembled separately, the square rivet head is irreversibly deformed after being heated. When the roller needs to be replaced, the retainer cannot be used after the connection between the square rivet head and the conical countersunk hole is removed. It also has the defects of cumbersome installation, inconvenient roller replacement and inability to be recycled. Utility Model Content

[0004] In response to the deficiencies in the above-mentioned prior art, the present invention provides an assembled cylindrical bearing retainer, which cooperates with the C-shaped opening of the retainer seat and the connecting ring of the retainer cover through a press-type design to achieve assembly and disassembly of the retainer seat and the retainer cover, thereby facilitating the installation, fixation and replacement of the rollers, and obtaining a retainer that is easy to operate and recyclable, which is beneficial to improving bearing production efficiency and reducing costs.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An assembled cylindrical bearing cage comprises a cage seat and a cage cover, wherein the cage seat comprises an integrally formed bottom ring and a hole beam, wherein a plurality of the hole beams are evenly spaced along the circumferential direction on the bottom ring, and a plurality of pockets for retaining rollers are formed between the hole beams;

[0007] The top of the hole beam is provided with a C-shaped opening facing upwards;

[0008] The retainer cover includes a connecting ring and a cover body. A plurality of cover bodies are fixedly sleeved on the connecting ring along the circumferential direction and are evenly spaced. The connecting ring is snap-fitted into the C-shaped opening. At this time, the cover body is located at the top of the pocket to lock the roller.

[0009] As a further implementation method, the pocket is a U-shaped hole, and the inner wall of the pocket is an arc-shaped hole, which can better wrap the roller, meet the requirements of high-speed bearing vibration performance, and reduce vibration noise.

[0010] As a further implementation method, a wedge-shaped groove is processed on the edge of the connection between the hole beam and the C-shaped opening to reserve a deformation margin for the retaining frame seat when it is engaged and fixed with the retaining frame cover.

[0011] As a further implementation, the cross-section of the connecting ring is circular, and the diameter thereof is adapted to the C-shaped opening, so that the connecting ring can be easily inserted into the C-shaped opening.

[0012] As a further implementation method, the cover body is arranged at the top between adjacent hole beams; the cover body is an arc-shaped block, and the inner edge and the outer edge of the cover body are both designed to be arc-shaped.

[0013] As a further implementation, gaps are provided between the two ends of the cover and the side walls of the pocket to provide deformation space for the bearing retainer.

[0014] As a further implementation method, limiting protrusions are symmetrically provided on both sides of the C-shaped opening.

[0015] As a further implementation, a limiting hole is provided on the connecting ring, and the limiting protrusion is engaged in the limiting hole and is detachably connected to prevent the retaining frame cover from falling off.

[0016] As a further implementation method, the cage seat and the cage cover are made of nylon plus glass fiber, making the bearing cage structure more wear-resistant and lightweight.

[0017] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0018] 1. The utility model adopts a press-type design by cooperating the C-shaped opening on the top of the cage seat with the connecting ring of the cage cover, so that the cage seat and the cage cover can be assembled separately and disassembled easily, which greatly facilitates the installation and replacement of the roller without damaging or replacing the bearing cage, effectively improving the bearing production efficiency and reducing costs.

[0019] 2. In the present invention, the limiting protrusion on the inner side of the C-shaped opening cooperates with the limiting hole on the connecting ring, so that the cage cover is assembled to the cage seat and maintains a stable connection, preventing the cage cover from slipping or falling off due to the movement of the roller, thereby improving the stability of the entire bearing.

[0020] 3. When the utility model is in use, the rollers are first installed in the inner and outer sleeves of the bearing, and then the cage seat is installed, and then the cage cover is covered. The operation is convenient and quick, and the disassembly can be done without damage, which solves the problems of difficult installation and replacement of bearing rollers. The cage cover can also prevent the rollers from falling off.

[0021] 4. The bearing cage of the present invention adopts a split design and is a detachable structure. When the local structure is worn, only the cage seat or the cage cover part of the structure can be replaced, which is convenient for the maintenance and repair of the cage.

[0022] 5. In the present invention, the pocket is set as a U-shaped hole with the opening upward and the pocket wall is set as an arc shape, which can better wrap the roller and lock the roller with the cage cover, meeting the vibration performance requirements of high-speed bearings and effectively reducing vibration noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the retainer seat according to an embodiment of the present utility model;

[0026] Figure 3 A partial schematic diagram of a retainer seat according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the retainer cover structure of an embodiment of the present utility model.

[0028] In the figure: 1, cage seat; 11, bottom ring; 12, hole beam; 13, pocket hole; 14, C-shaped mouth; 15, wedge-shaped groove; 16, limit protrusion;

[0029] 2. Cage cover; 21. Connecting ring; 22. Cover body; 23. Limiting hole. DETAILED DESCRIPTION

[0030] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0031] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] In a typical embodiment of the present application, an assembled cylindrical bearing cage is provided, such as Figure 1-4 As shown, it includes a cage seat 1 and a cage cover 2. The cage seat 1 includes an integrally formed bottom ring 11 and a hole beam 12. The bottom ring 11 is provided with a plurality of hole beams 12 spaced evenly along the circumferential direction. A plurality of pockets 13 for holding rollers are formed between the hole beams 12. The top of the hole beam 12 is provided with a C-shaped opening 14 with an upward opening.

[0034] The retainer cover 2 includes a connecting ring 21 and a cover body 22. A plurality of cover bodies 22 are fixedly sleeved on the connecting ring 21 along the circumferential direction. The connecting ring 21 is snap-fitted into the C-shaped opening 14. At this time, the cover body 22 is located at the top of the pocket 13 to lock the roller.

[0035] Specifically, the cylindrical bearing retainer of this embodiment adopts a split design, consisting of a retainer seat and a retainer seat, which are assembled and installed by pressing. Figure 1 、 2 As shown, the retainer seat 1 includes a bottom ring 11, and a plurality of pockets 13 are distributed on the bottom ring 11 along the circumferential direction for wrapping the bearing rollers. The pockets are formed by hole beams uniformly arranged at set intervals along the circumferential direction on the bottom ring. The hole beams 12 and the bottom ring 11 are integrally formed. The top of the hole beam 12 is processed into a C-shaped opening 14 with the opening facing upward. The retainer seat 1 is assembled with the retainer cover 2 through the C-shaped opening 14.

[0036] In this embodiment, the retaining frame cover 2 is composed of a fixedly connected connecting ring 21 and a plurality of cover bodies 22 mounted on the connecting ring. The connected cover bodies 22 have the same set intervals. The connecting ring 21 between the cover bodies can be pressed into the C-shaped opening 14 and engaged, thereby connecting and fixing the retaining cover seat to the retaining cover body.

[0037] Specifically, if Figure 1 、 2As shown, the pocket hole 13 is set as a U-shaped hole, and the inner wall of the pocket hole is arc-shaped, which can better wrap the roller, meet the requirements of high-speed bearing vibration performance, and reduce vibration noise. Figure 3 As shown, a wedge-shaped groove 15 is processed on the edge of the connection between the hole beam and the C-shaped opening, which can reserve deformation margin for the cage seat when the cage seat and the cage cover are clamped and fixed, so as to avoid deformation of the inner and outer sleeves of the bearing.

[0038] Specifically, if Figure 4 As shown, the connecting ring 21 has a circular cross-section, and its diameter is compatible with the C-shaped opening, facilitating its insertion. Several covers 22 are mounted on the outer circumference of the connecting ring and evenly distributed along its circumference. After the retainer cover is secured to the retainer seat, each cover 22 is positioned at the top of the pocket between adjacent beams. The covers are arc-shaped blocks, with both inner and outer edges designed to align with the inner and outer diameters of the base ring to better seal the rollers and mate with the inner and outer sleeves of the bearing.

[0039] Specifically, if Figure 4 As shown, a gap is provided between the two ends of the cover body 22 and the side wall of the pocket 13 to provide a certain deformation space for the bearing retainer. In this embodiment, the gap is 0.2-0.5 mm to avoid interference with the inner and outer sleeves of the bearing and to avoid deformation, wear and noise during the operation of the bearing.

[0040] Specifically, in order to further improve the stability of the overall bearing structure, as Figure 2-4 As shown, two limiting protrusions 16 are symmetrically provided on both sides of the C-shaped opening 14 of the hole beam. Correspondingly, limiting holes 23 are provided on the connecting ring at positions corresponding to the limiting protrusions. When the retaining cover and the retaining seat are assembled, the limiting protrusions 16 can be engaged in the limiting holes 23 to prevent the retaining cover and the retaining cover from falling off due to roller vibration, and to facilitate connection and disassembly.

[0041] In addition, in this embodiment, the material of the cage seat and the cage cover is nylon plus glass fiber, which makes the bearing cage structure more wear-resistant and lightweight. Specifically, PA66GF10, that is, PA66 material reinforced with 10% glass fiber, is used.

[0042] It should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Those skilled in the art will appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An assembled cylindrical bearing cage, comprising a cage seat and a cage cover, wherein the cage seat comprises an integrally formed bottom ring and a hole beam, wherein the bottom ring is provided with a plurality of hole beams spaced evenly along the circumferential direction, and a plurality of pockets for retaining rollers are formed between the hole beams, characterized in that: The top of the hole beam is provided with a C-shaped opening facing upwards; The retainer cover includes a connecting ring and a cover body. A plurality of cover bodies are fixedly sleeved on the connecting ring along the circumferential direction and are evenly spaced. The connecting ring is snap-fitted into the C-shaped opening. At this time, the cover body is located at the top of the pocket to lock the roller.

2. The assembled cylindrical bearing retainer according to claim 1, characterized in that: The pocket hole is a U-shaped hole, and the inner wall of the pocket hole is an arc shape.

3. The assembled cylindrical bearing retainer according to claim 1, characterized in that: The edge of the connection between the hole beam and the C-shaped opening is processed with a wedge-shaped groove.

4. The assembled cylindrical bearing retainer according to claim 1, characterized in that: The cross section of the connecting ring is circular, and the diameter thereof is adapted to the C-shaped opening.

5. The assembled cylindrical bearing retainer according to claim 1, characterized in that: The cover body is arranged at the top between adjacent hole beams; the cover body is an arc-shaped block, and the inner edge and the outer edge of the cover body are both designed to be arc-shaped.

6. The assembled cylindrical bearing retainer according to claim 5, characterized in that: Gaps are provided between the two ends of the cover and the side walls of the pocket hole.

7. The assembled cylindrical bearing retainer according to claim 1, characterized in that: Limiting protrusions are symmetrically provided on both sides of the C-shaped opening.

8. An assembled cylindrical bearing retainer according to claim 7, characterized in that: A limiting hole is provided on the connecting ring, and the limiting protrusion is engaged in the limiting hole and is detachably connected.

9. The assembled cylindrical bearing retainer according to claim 1, characterized in that: The materials of the cage seat and the cage cover are nylon and glass fiber.

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