Anti-offset radial needle bearing stretching retainer

Abstract

The utility model discloses an anti-offset radial needle bearing stretching retainer which comprises a retainer body and a butt joint assembly, a retaining ring is arranged at the top of the retainer body, movable grooves are formed in the top of the retaining ring in a staggered mode, and the butt joint assembly used for controlling butt joint or separation of the retaining ring and the retainer body is installed in the movable grooves. The butt joint assembly comprises an inner ring, a hook, a clamping groove and a limiting hole, the hook is perpendicularly arranged at the bottom of the inner ring, the clamping groove is formed in the position, corresponding to the hook, of the top of the holder, the limiting hole is formed in the upper portion of the left side of the holder, a limiting column is arranged in the limiting hole, and the top of the limiting column is fixed to the retaining ring. A rotating hole is vertically formed in the top of the inner ring, and a steering column is arranged in the rotating hole. According to the anti-deviation radial needle bearing stretching retainer, not only can the disassembly and assembly efficiency be improved, but also the friction force between the radial needle roller and the retainer can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing cages, and specifically relates to a stretching cage for an anti-offset centripetal needle roller bearing. Background Technique

[0002] In order to prevent the needle rollers from moving out of position, a cage is used to ensure the stability of the centripetal needle roller bearing. The centripetal needle roller bearing includes a cage and needle rollers arranged in the cage. Since there is no outer ring and inner ring structure, for the convenience of installation and transportation, the cage is designed with a double locking structure, that is, locking openings are designed at both the inner diameter and outer diameter positions of the cage. Therefore, the cage structure is generally "M-shaped".

[0003] For example, the patent document with the application number CN202323282524.8 discloses a cage and a centripetal needle roller bearing. The cage and centripetal needle roller bearing provided by this utility model can improve the load-bearing capacity and are suitable for working conditions with high rotational speed and high centrifugal force. However, there are certain inconveniences in assembling or disassembling this cage and centripetal needle roller bearing, which affects the overall installation efficiency of the bearing.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structural deficiencies, and a stretching cage for an anti-offset centripetal needle roller bearing is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a stretching cage for an anti-offset centripetal needle roller bearing to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A stretching cage for an anti-offset centripetal needle roller bearing, including a cage and a docking component. A retaining ring is arranged on the top of the cage, and movable grooves are alternately opened on the top of the retaining ring. The docking component for controlling the docking or separation of the retaining ring and the cage is installed inside the movable groove. The docking component includes an inner ring, a hook, a clamping groove, and a limiting hole. A hook is vertically arranged at the bottom of the inner ring, and a clamping groove is opened at the corresponding position of the top of the cage for the hook. A limiting hole is opened above the left side of the cage.

[0007] Preferably, a limiting post is arranged inside the limiting hole, and the top of the limiting post is fixed to the retaining ring.

[0008] Preferably, a rotating hole is vertically opened at the top of the inner ring, and a steering post is arranged inside the rotating hole.

[0009] Preferably, a docking plate is fixedly installed at the top of the steering post, and a handle is fixedly installed above the middle of the docking plate.

[0010] Preferably, the inner wall of the cage is provided with lubricating grooves, and the overall lubricating grooves are arranged in a "U" - shaped structure.

[0011] Preferably, a lubricating plate is provided on the top of the lubricating groove, and the top of the lubricating plate is fixed to the cage.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The anti - offset centripetal needle roller bearing stretching cage can not only improve the disassembly and assembly efficiency, but also reduce the friction between the centripetal needle rollers and the cage.

[0013] 1. Through the setting of the docking component in the present utility model, the centripetal needle rollers are turned into the inside of the cage from the notch above, and then the hooks arranged at the bottom of the retaining ring are inserted into the clamping grooves opened at the top of the cage. Moreover, the inner ring is driven to rotate clockwise through the docking plate and the steering column arranged at the bottom, and the hooks are clamped into the innermost part of the clamping grooves to achieve the purpose of improving the installation efficiency. By rotating the docking plate in the reverse direction, the retaining ring and the cage can be quickly separated.

[0014] 2. Through the setting of the lubricating grooves in the present utility model, the lubricating grooves cooperate with the lubricating plates to wrap the centripetal needle rollers. The lubricating grooves and the lubricating plates are made of a lead - containing alloy self - lubricating material, which is commonly used in fields such as bearings, motors, construction, and industrial equipment. It has good self - lubricating performance, excellent wear - resistance performance and toughness, and can reduce the friction coefficient and wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic three - dimensional structure diagram of the whole of the present utility model;

[0016] Figure 2 is a schematic unfolded structure diagram of the whole of the present utility model;

[0017] Figure 3 is of the present utility model Figure 2 is an enlarged structure diagram at A in

[0018] Figure 4 is a schematic three - dimensional structure diagram of the lubricating groove of the present utility model.

[0019] In the figure: 1, cage; 2, retaining ring; 3, movable groove; 4, docking component; 401, inner ring; 402, hook; 403, clamping groove; 404, limiting hole; 5, limiting column; 6, rotating hole; 7, steering column; 8, docking plate; 9, handle; 10, lubricating groove; 11, lubricating plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] As Figures 1 - 3 shown, an anti-offset centripetal needle roller bearing stretching cage includes a cage 1 and a docking assembly 4. A retaining ring 2 is provided at the top of the cage 1, and movable grooves 3 are alternately arranged at the top of the retaining ring 2. The docking assembly 4 for controlling the docking or separation of the retaining ring 2 and the cage 1 is installed inside the movable groove 3. The docking assembly 4 includes an inner ring 401, a hook 402, a card slot 403, and a limiting hole 404. A hook 402 is vertically provided at the bottom of the inner ring 401, and a card slot 403 is provided at the corresponding position of the top of the cage 1 for the hook 402. A limiting hole 404 is provided above the left side of the cage 1.

[0022] Turn the centripetal needle roller into the inside of the cage 1 from the upper notch, and then insert the hook 402 provided at the bottom of the retaining ring 2 into the card slot 403 provided at the top of the cage 1. And, the inner ring 401 is driven to rotate clockwise through the docking plate 8 and the steering column 7 provided at the bottom, and the hook 402 is engaged into the innermost part of the card slot 403 to achieve the purpose of improving the installation efficiency. The retaining ring 2 and the cage 1 can be quickly separated by rotating the docking plate 8 in the reverse direction. After installation.

[0023] As Figures 1 - 4 shown, a limiting post 5 is provided inside the limiting hole 404, and the top of the limiting post 5 is fixed to the retaining ring 2.

[0024] The limiting post 5 prevents the retaining ring 2 from rotating self.

[0025] Further, a rotating hole 6 is vertically provided at the top of the inner ring 401, and a steering column 7 is provided inside the rotating hole 6.

[0026] The steering column 7 is used to drive the inner ring 401 to rotate.

[0027] Further, a docking plate 8 is fixedly installed at the top of the steering column 7, and a handle 9 is fixedly installed above the middle of the docking plate 8.

[0028] The handle 9 facilitates applying a rotating force to the steering column 7.

[0029] Further, a lubricating groove 10 is provided on the inner wall of the cage 1, and the overall shape of the lubricating groove 10 is set in a "U" shape.

[0030] Further, a lubricating plate 11 is provided at the top of the lubricating groove 10, and the top of the lubricating plate 11 is fixed to the cage 1.

[0031] The lubricating plate 11 reduces the frictional force on the top of the centripetal needle roller.

[0032] Working principle: When using this anti-offset centripetal needle roller bearing to stretch the cage, first turn the centripetal needle roller into the inside of the cage 1 from the notch above, then insert the hook 402 provided at the bottom of the retaining ring 2 into the card slot 403 opened at the top of the cage 1, and drive the inner ring 401 to rotate clockwise through the docking plate 8 and the steering column 7 provided at the bottom, and make the hook 402 snap into the innermost part of the card slot 403. After installation, the lubricating groove 10 cooperates with the lubricating plate 11 to wrap the centripetal needle roller. The lubricating groove 10 and the lubricating plate 11 are made of a lead-containing alloy self-lubricating material, and are commonly used in fields such as bearings, motors, construction, and industrial equipment. It has good self-lubricating performance, excellent wear resistance and toughness, can reduce the friction coefficient and reduce wear. This is the working principle of this anti-offset centripetal needle roller bearing stretching cage.

Claims

1. A centripetal needle roller bearing stretching cage for preventing deviation, comprising a cage (1) and a docking assembly (4), characterized in that, A retaining ring (2) is provided at the top of the cage (1), and movable slots (3) are staggeredly formed at the top of the retaining ring (2). The docking assembly (4) for controlling the docking or separation of the retaining ring (2) and the cage (1) is installed inside the movable slots (3). The docking assembly (4) includes an inner ring (401), a hook (402), a clamping slot (403), and a limiting hole (404). A hook (402) is vertically provided at the bottom of the inner ring (401), and a clamping slot (403) is formed at the position of the cage (1) corresponding to the hook (402). A limiting hole (404) is formed above the left side of the cage (1).

2. The centripetal needle roller bearing stretching cage for preventing deviation according to claim 1, wherein, A limiting post (5) is provided inside the limiting hole (404), and the top of the limiting post (5) is fixed to the retaining ring (2).

3. A centripetal needle roller bearing tension cage for preventing deviation according to claim 1, characterized in that, A rotating hole (6) is vertically formed at the top of the inner ring (401), and a steering post (7) is provided inside the rotating hole (6).

4. A centripetal needle roller bearing tension cage for preventing deviation, according to claim 3, characterized in that A docking plate (8) is fixedly installed at the top of the steering post (7), and a handle (9) is fixedly installed above the middle of the docking plate (8).

5. The centripetal needle roller bearing tension cage for preventing deviation according to claim 1, characterized in that A lubricating groove (10) is provided on the inner wall of the cage (1), and the overall shape of the lubricating groove (10) is a "U" - shaped structure.

6. The centripetal needle roller bearing stretching cage against deviation according to claim 5, characterized in that, A lubricating plate (11) is provided at the top of the lubricating groove (10), and the top of the lubricating plate (11) is fixed to the cage (1).

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