Bidirectional bearing fastening sleeve

Abstract

The utility model relates to the technical field of bearing fastening sleeves, in particular to a bidirectional bearing fastening sleeve. According to the technical scheme, the device comprises stop rings and a fastening lining, connecting rings are arranged at the two ends of the fastening lining respectively, first inclined faces are arranged on the outer surfaces of the two connecting rings, the outer surfaces of the two connecting rings are slidably connected with the stop rings in a sleeving mode, and pressing rings are fixedly connected to the outer sides of the two stop rings; and second inclined planes are arranged on the inner walls of the two pressing rings correspondingly, through holes are formed in the positions, close to the front surface and the rear surface, of the outer surface of the fastening lining correspondingly, bidirectional threaded rods are movably inserted into the two through holes correspondingly, and threaded holes are formed in the positions, close to the front surface and the rear surface, of the outer surfaces of the two stop rings correspondingly. According to the utility model, the fastening bushing can be locked and fixed from two directions of the two ends of the fastening bushing, so that the tight fitting degree between the fastening bushing and the shaft is improved, and the sliding phenomenon is prevented.

Description

Technical Field

[0001] This utility model relates to the field of bearing fastening sleeve technology, specifically a bidirectional bearing fastening sleeve. Background Technology

[0002] Bearing retaining sleeves, also known as bearing locking sleeves or bearing fixing sleeves, are important components widely used in mechanical equipment. Their main function is to fix the bearing and prevent it from loosening or falling off during operation, thereby ensuring the normal operation of the equipment and extending the service life of the bearing.

[0003] Current bearing fastening sleeves fix the bearing to the shaft by friction between an external tapered fastening bushing and the bearing with a tapered bore. However, this fastening bushing is only fixed to the shaft in one direction by a locking nut, which reduces the fit between the fastening bushing and the shaft and makes it prone to slippage. To address this, we propose a two-way bearing fastening sleeve. Utility Model Content

[0004] The purpose of this utility model is to provide a bidirectional bearing fastening sleeve, which can be locked and fixed from both ends of the fastening bushing, improving the tightness of the fit between the fastening bushing and the shaft and preventing slippage. It solves the problem that current bearing fastening sleeves fix the bearing to the shaft by friction between the external tapered fastening bushing and the bearing with a tapered hole, while the current fastening bushing is only fixed to the shaft in one direction by a locking nut, resulting in a reduced fit between the fastening bushing and the shaft and easy slippage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bidirectional bearing fastening sleeve, comprising a stop ring and a fastening bushing, wherein connecting rings are respectively provided at both ends of the fastening bushing, and a first inclined surface is provided on the outer surface of each of the two connecting rings. A stop ring is slidably sleeved on the outer surface of each of the two connecting rings. A pressure ring is fixedly connected to the outer side of each of the two stop rings, and a second inclined surface is provided on the inner wall of each of the two pressure rings. Through holes are provided on the outer surface of the fastening bushing near the front and rear surfaces, and a bidirectional threaded rod is movably inserted into the two through holes. Threaded holes are provided on the outer surface of each of the two stop rings near the front and rear surfaces.

[0006] Preferably, the two bidirectional threaded rods pass through four threaded holes at their ends, and the threads on the inner wall of the threaded holes mesh with the threads on the outer surface of the bidirectional threaded rods.

[0007] Preferably, the outer surface of the fastening bushing is provided with a through slot.

[0008] Preferably, the inner wall of the stop ring is provided with a limiting block, and the limiting block is located inside the through slot.

[0009] Preferably, both ends of the two bidirectional threaded rods are provided with hexagonal heads.

[0010] Preferably, annular grooves are provided on the outer surfaces of the two bidirectional threaded rods near the two ends of the fastening bushing, and retaining rings are engaged inside the four annular grooves.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by setting a fastening bushing, a connecting ring, a first inclined surface, a stop ring, a pressure ring, a second inclined surface, a bidirectional threaded rod, and a threaded hole, achieves the ability to lock and fix the fastening bushing from two directions at both ends, improving the tightness of the fit between the fastening bushing and the shaft, and preventing slippage. The optical shaft passes through the inside of the fastening bushing, the bearing is sleeved on the outer surface of the fastening bushing, and the end of the bidirectional threaded rod passes through the threaded hole. When the bidirectional threaded rod is turned, the two stop rings move in opposite directions and fix the two sides of the bearing. During the process of the stop rings moving with the pressure ring, the contacting first and second inclined surfaces will force the connecting ring to drive the fastening bushing to contract, making the fastening bushing tightly fit against the outer surface of the shaft.

[0013] 2. By setting an annular groove and a retaining ring, this utility model achieves the function of limiting the bidirectional threaded rod and facilitates the synchronous movement of the two stop rings. The retaining ring inside the annular groove limits the bidirectional threaded rod inside the through hole. During the rotation of the bidirectional threaded rod, the two stop rings can move synchronously toward or away from the fastening bushing. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a partial three-dimensional structural diagram of the fastening bushing of this utility model;

[0016] Figure 3 This is a partial three-dimensional structural diagram of the stop ring of this utility model;

[0017] Figure 4 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 5 This is a partial three-dimensional structural diagram of the bidirectional threaded rod of this utility model.

[0019] Reference numerals: 1. Bidirectional threaded rod; 2. Stop ring; 3. Fastening bushing; 4. Through hole; 5. First inclined surface; 6. Connecting ring; 7. Through slot; 8. Threaded hole; 9. Second inclined surface; 10. Pressure ring; 11. Limiting block; 12. Annular groove; 13. Snap ring; 14. Hexagonal head. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figures 1-4 As shown, this utility model proposes a bidirectional bearing fastening sleeve, including a stop ring 2 and a fastening bushing 3. Connecting rings 6 are respectively provided at both ends of the fastening bushing 3. A through slot 7 is provided on the outer surface of the fastening bushing 3, extending along the axial direction of the fastening bushing 3 to the outer sides of the two connecting rings 6. A first inclined surface 5 is provided on the outer surface of each of the two connecting rings 6. A stop ring 2 is slidably fitted onto the outer surface of each of the two connecting rings 6. A limiting block 11 is provided on the inner wall of the stop ring 2, and the limiting block 11 is located inside the through slot 7. During the process of the stop ring 2 being fitted onto the connecting rings 6, the limiting block 11 is inserted into the through slot 7 to provide positioning. Pressure plates are fixedly connected to the outer sides of both stop rings 2. The ring 10 has a second inclined surface 9 on its inner wall. The first inclined surface 5 and the second inclined surface 9 are in contact. The outer surface of the fastening bushing 3 has a through hole 4 near the front and rear surfaces. The two through holes 4 are movably inserted with a double-threaded rod 1. The outer surface of the two stop rings 2 has a threaded hole 8 near the front and rear surfaces. The two ends of the double-threaded rod 1 pass through the four threaded holes 8 respectively. The threads on the inner wall of the threaded hole 8 and the threads on the outer surface of the double-threaded rod 1 are engaged. The two ends of the double-threaded rod 1 are provided with a hexagonal head 14. The two ends of the double-threaded rod 1 are hexagonal prisms to facilitate rotation of the double-threaded rod 1 by a wrench.

[0023] When this utility model is in use, the optical axis passes through the inside of the fastening bushing 3, the bearing is sleeved on the outer surface of the fastening bushing 3, the end of the bidirectional threaded rod 1 passes through the threaded hole 8, and then the bidirectional threaded rod 1 is turned, so that the two stop rings 2 move in opposite directions and fix the two sides of the bearing. During the process of the stop rings 2 moving with the pressure ring 10, the first inclined surface 5 and the second inclined surface 9 that are in contact will force the connecting ring 6 to drive the fastening bushing 3 to contract, and make the fastening bushing 3 fit tightly against the outer surface of the shaft to prevent slippage.

[0024] Example 2

[0025] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the present invention proposes a bidirectional bearing fastening sleeve. Compared with the first embodiment, this embodiment also includes two bidirectional threaded rods 1 with annular grooves 12 on the outer surface near the two ends of the fastening bushing 3, and each of the four annular grooves 12 is fitted with a retaining ring 13.

[0026] In this embodiment, the retaining ring 13 inside the annular groove 12 plays a limiting role in the bidirectional threaded rod 1 inside the through hole 4. During the rotation of the bidirectional threaded rod 1, the two stop rings 2 can move synchronously toward or away from the fastening bushing 3.

[0027] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A bidirectional bearing fastening sleeve, comprising a stop ring (2) and a fastening bushing (3), characterized in that: The fastening bushing (3) is provided with connecting rings (6) at both ends. The outer surfaces of the two connecting rings (6) are provided with first inclined surfaces (5). The outer surfaces of the two connecting rings (6) are slidably fitted with stop rings (2). The outer sides of the two stop rings (2) are fixedly connected with pressure rings (10). The inner walls of the two pressure rings (10) are provided with second inclined surfaces (9). The outer surface of the fastening bushing (3) is provided with through holes (4) near the front and rear surfaces. The two through holes (4) are movably inserted with bidirectional threaded rods (1). The outer surfaces of the two stop rings (2) are provided with threaded holes (8) near the front and rear surfaces.

2. The bidirectional bearing fastening sleeve according to claim 1, characterized in that: The two bidirectional threaded rods (1) pass through four threaded holes (8) at their ends respectively, and the threads on the inner wall of the threaded holes (8) and the threads on the outer surface of the bidirectional threaded rods (1) mesh with each other.

3. The bidirectional bearing fastening sleeve according to claim 1, characterized in that: The outer surface of the fastening bushing (3) is provided with a through slot (7).

4. The bidirectional bearing fastening sleeve according to claim 3, characterized in that: The inner wall of the stop ring (2) is provided with a limiting block (11), and the limiting block (11) is located inside the through slot (7).

5. A bidirectional bearing fastening sleeve according to claim 1, characterized in that: Both ends of the two bidirectional threaded rods (1) are provided with hexagonal heads (14).

6. The bidirectional bearing fastening sleeve according to claim 1, characterized in that: Both of the two bidirectional threaded rods (1) have annular grooves (12) on their outer surfaces near the two ends of the fastening bushing (3), and each of the four annular grooves (12) has a retaining ring (13) inside.

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