A readily removable bearing

Abstract

The utility model relates to bearing installation technical field, concretely is a kind of bearing of easy disassembly, including bearing seat and the bearing installed in the bearing seat, the positioner assembly is matched with the valve assembly, and the bearing is limited in the bearing seat, the positioner assembly includes snap ring sleeve threadedly installed in the front side of the bearing seat inner cavity, the snap ring sleeve and the half-arc-shaped sleeve jointly hold the outer ring of the bearing in position limit. The utility model, by setting positioner assembly and valve assembly jointly hold the bearing in position limit in bearing seat, when needing to take out bearing from bearing seat, half-arc-shaped sleeve is pushed down, after half-arc-shaped sleeve is retracted and is stored in groove, to release the radial position limit of half-arc-shaped sleeve to bearing, at this time, bearing is in released state, this process is similar to open a sliding door up and down, direct, labor-saving and no impact, the quick nondestructive disassembly of bearing is realized.

Description

Technical Field

[0001] This utility model relates to the field of bearing installation technology, and in particular to an easily disassembled bearing. Background Technology

[0002] Currently, the main methods for fixing bearings in bearing housings include interference fit, bolt fastening, and locking with a locking sleeve. While interference fit can provide excellent connection rigidity and running accuracy, it is extremely difficult to disassemble. It usually requires the use of pullers, hydraulic equipment, or even local heating. The process can easily cause irreversible damage to the bearing raceway, cage, and mating journal or bearing housing surface. This is a typical example of violent disassembly, which directly affects the secondary use of components and the accuracy of equipment restoration.

[0003] To facilitate maintenance, some easy-disassembly solutions have been proposed in existing technologies, such as using split bearing housings or bearings with adapter sleeves. However, these solutions have obvious limitations: split structures often have poor overall rigidity and sealing due to the presence of mating surfaces, making it difficult to meet the requirements of high-load or high-precision applications; while using adapter sleeves for locking requires strict control of the preload force during installation. Insufficient preload can easily lead to bearing loosening, while excessive preload may cause the bearing clearance to disappear or even seize. Furthermore, repeated disassembly and assembly can easily lead to positioning failure due to wear of the mating surfaces. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings by providing an easily detachable bearing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an easily detachable bearing, comprising a bearing housing and a bearing installed in the bearing housing, wherein a positioning assembly and a valve assembly are respectively provided on two mutually spaced sides of the bearing housing, and the positioning assembly and the valve assembly cooperate to limit the bearing within the bearing housing; The valve assembly includes a movable groove formed on the rear side of the bearing housing cavity, and a semi-circular retaining sleeve is slidably disposed in the movable groove; The positioning assembly includes a retaining ring sleeve threaded onto the front side of the bearing housing cavity, the retaining ring sleeve and the semi-circular retaining sleeve together clamping and limiting the outer ring of the bearing.

[0006] Furthermore, the valve assembly also includes a receiving groove and a threaded hole two respectively opened in the bearing seat. The receiving groove is connected to the movable groove, and the threaded hole two is connected to the receiving groove. A guide rod is fixedly installed inside the receiving groove. The bottom end of the semi-circular sleeve is adapted to the guide rod. A spring is sleeved on the outside of the guide rod. The two ends of the spring respectively abut against the bottom end of the semi-circular sleeve and the inner cavity of the receiving groove.

[0007] Furthermore, a handle screw is installed on the internal thread of the second threaded hole.

[0008] Furthermore, a wedge-shaped slope is provided at the end of the semi-circular sleeve away from the retaining ring sleeve.

[0009] Furthermore, the positioning assembly also includes a threaded hole in the bearing housing, a guide groove is provided through the lower side of the inner cavity of the threaded hole, a threaded rod is threaded in the threaded hole, and a sleeve rod for limiting the retaining ring is slidably installed in the guide groove.

[0010] Furthermore, the sleeve rod is rotatably connected to the threaded rod, and a retaining block is fixedly installed at the bottom end of the sleeve rod.

[0011] Furthermore, the retaining ring sleeve has a ring array of slots at one end near the retaining tooth block that engage with the retaining tooth block.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the bearing is clamped and limited in the bearing housing by setting the tracking component and the valve component together. When it is necessary to remove the bearing from the bearing housing, the semi-arc sleeve is pushed down. After the semi-arc sleeve retracts into the receiving groove, the radial limitation of the bearing by the semi-arc sleeve is released. At this time, the bearing is in the released state. This process is similar to opening a sliding door. It is direct, labor-saving and impact-free, and realizes the quick and non-destructive disassembly of the bearing.

[0013] 2. In this utility model, a retaining ring sleeve installed on the internal thread of the bearing housing is provided. The retaining ring sleeve, together with the semi-arc retaining sleeve, firmly clamps the outer ring of the bearing in the bearing housing, thereby realizing the installation of the bearing. At the same time, since the thickness of different bearing models is different, in order to facilitate the clamping of bearings of different thicknesses, the distance between the retaining ring sleeve and the semi-arc retaining sleeve can be adjusted according to the thickness of the bearing by rotating the retaining ring sleeve installed on the internal thread of the bearing housing. This improves the versatility of this device when installing bearings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front elevation of the entire utility model; Figure 2 This is a schematic diagram of the overall rear elevation structure of this utility model; Figure 3 This is a schematic diagram of the side elevation cross-sectional structure of the bearing housing in this utility model; Figure 4 This utility model Figure 3 A magnified schematic diagram of the node structure at point A in the middle; Figure 5 This utility model Figure 3 A magnified schematic diagram of the node structure at point B.

[0015] Legend: 1. Bearing housing; 2. Bearing; 3. Tracking assembly; 31. Threaded hole one; 32. Guide groove; 33. Threaded rod one; 331. Clamping block; 332. Sleeve rod; 34. Clamping ring sleeve; 341. Clamping groove; 4. Valve assembly; 41. Storage groove; 42. Movable groove; 43. Threaded hole two; 431. Handle screw; 44. Guide rod; 441. Spring; 45. Semi-arc ferrule. Detailed Implementation

[0016] Please see Figure 1-5 The present invention provides a technical solution: an easily detachable bearing, including a bearing housing 1 and a bearing 2 installed in the bearing housing 1. A positioning component 3 and a valve component 4 are respectively provided on two mutually spaced sides of the bearing housing 1. The positioning component 3 and the valve component 4 cooperate to limit the bearing 2 in the bearing housing 1. The valve assembly 4 includes a movable groove 42 opened on the rear side of the inner cavity of the bearing seat 1, and a semi-circular ferrule 45 is slidably disposed in the movable groove 42; The positioning assembly 3 includes a retaining ring 34 threadedly installed on the front side of the inner cavity of the bearing housing 1. The retaining ring 34 and the semi-arc retaining sleeve 45 together clamp and limit the outer ring of the bearing 2.

[0017] Let's discuss the specific settings and functions of 3 and 4 in detail below.

[0018] In this embodiment, the valve assembly 4 also includes a storage groove 41 and a threaded hole 43 respectively opened in the bearing seat 1. The storage groove 41 is connected to the movable groove 42, and the threaded hole 43 is connected to the storage groove 41. A guide rod 44 is fixedly installed inside the storage groove 41. A 452 adapted to the guide rod 44 is opened at the bottom end of the semi-arc sleeve 45. A spring 441 is sleeved on the outside of the guide rod 44. The two ends of the spring 441 are respectively held between the bottom end of the semi-arc sleeve 45 and the inner cavity of the storage groove 41.

[0019] Specifically, the handle screw 431 is installed in the internal thread of the threaded hole 43.

[0020] Specifically, the end of the semi-circular sleeve 45 away from the retaining ring sleeve 34 has a wedge-shaped slope.

[0021] The effect achieved by the above components is as follows: when the bearing 2 is installed in the bearing housing 1, the bearing 2 is directly inserted into the bearing housing 1 from the rear end of the bearing housing 1. During the insertion process, the bearing 2 is pressed down by the wedge-shaped surface of the semi-arc sleeve 45 and enters the receiving groove 41. After the bearing 2 passes through the semi-arc sleeve 45, the tension of the spring 441 pushes the semi-arc sleeve 45 to reset, so that the bearing 2 is clamped and limited by the retaining ring sleeve 34 and the semi-arc sleeve 45. When it is necessary to remove the bearing 2, first push the semi-circular sleeve 45 downward. After the semi-circular sleeve 45 slides into the storage groove 41, the bearing 2 loses the resistance of the semi-circular sleeve 45 and can be pulled directly out of the bearing seat 1 by using tools such as hooks. After the bearing 2 is installed in the bearing housing 1, in order to prevent the semi-circular sleeve 45 from opening and closing unnecessarily, the handle screw 431 is tightened. After the handle screw 431 enters the storage groove 41, it directly abuts against the bottom end of the semi-circular sleeve 45, thereby keeping the semi-circular sleeve 45 in a locked state.

[0022] In this embodiment, the positioning component 3 also includes a threaded hole 31 opened in the bearing housing 1, a guide groove 32 is provided through the lower side of the inner cavity of the threaded hole 31, a threaded rod 33 is threaded in the threaded hole 31, and a sleeve rod 332 of the limit ring sleeve 34 is slidably installed in the guide groove 32.

[0023] Specifically, the sleeve rod 332 is rotatably connected to the threaded rod 33, and a retaining block 331 is fixedly installed at the bottom end of the sleeve rod 332.

[0024] Specifically, the retaining ring sleeve 34 has a ring array of slots 341 that engage with the retaining tooth block 331 at one end near the retaining tooth block 331.

[0025] The effect achieved by the above components is as follows: rotating the retaining ring sleeve 34 causes the retaining ring sleeve 34 to move closer to the semi-arc retaining sleeve 45, thereby causing the semi-arc retaining sleeve 45 and the retaining ring sleeve 34 to hold and limit the outer ring of the bearing 2. Then, the semi-arc retaining sleeve 45 can be rotated according to the thickness of the bearing 2 to adjust the distance between the semi-arc retaining sleeve 45 and the retaining ring sleeve 34. To prevent unnecessary rotational displacement of the retaining ring sleeve 34 caused by vibrations generated during the operation of the bearing housing 1 and the bearing 2, after adjusting the position of the retaining ring sleeve 34, the threaded rod 33 inside the threaded hole 31 is screwed in. After the threaded rod 33 retracts into the threaded hole 31, it drives the retaining tooth block 331 to engage with the retaining groove 341 opened on the retaining ring sleeve 34 through the sleeve rod 332, thereby locking the retaining ring sleeve 34 so that it cannot rotate or move.

Claims

1. A disassembleable bearing, comprising a bearing housing (1) and a bearing (2) mounted within the bearing housing (1), characterized in that: On the bearing housing (1), a positioning component (3) and a valve component (4) are respectively provided on the two sides that are far apart from each other. The positioning component (3) and the valve component (4) cooperate to limit the bearing (2) within the bearing housing (1). The valve assembly (4) includes a movable groove (42) opened on the rear side of the inner cavity of the bearing seat (1), and a semi-arc sleeve (45) is slidably disposed in the movable groove (42). The positioning assembly (3) includes a retaining ring (34) threaded onto the front side of the inner cavity of the bearing housing (1). The retaining ring (34) and the semi-arc retaining ring (45) together clamp and limit the outer ring of the bearing (2).

2. The easily detachable bearing according to claim 1, characterized in that: The valve assembly (4) also includes a storage groove (41) and a threaded hole (43) respectively opened in the bearing seat (1). The storage groove (41) is connected to the movable groove (42), and the threaded hole (43) is connected to the storage groove (41). A guide rod (44) is fixedly installed inside the storage groove (41). The bottom end of the semi-arc sleeve (45) is provided with a (452) adapted to the guide rod (44). A spring (441) is sleeved on the outside of the guide rod (44). The two ends of the spring (441) respectively abut against the bottom end of the semi-arc sleeve (45) and the inner cavity of the storage groove (41).

3. The easily detachable bearing according to claim 2, characterized in that: The threaded hole 2 (43) is internally threaded with a handle screw (431).

4. The easily detachable bearing according to claim 2, characterized in that: The semi-circular sleeve (45) has a wedge-shaped slope at the end away from the retaining ring sleeve (34).

5. The easily detachable bearing according to claim 1, characterized in that: The tracking component (3) also includes a threaded hole (31) opened in the bearing seat (1), a guide groove (32) is provided through the lower side of the inner cavity of the threaded hole (31), a threaded rod (33) is threaded in the threaded hole (31), and a sleeve rod (332) for limiting the retaining ring (34) is slidably installed in the guide groove (32).

6. The easily detachable bearing according to claim 5, characterized in that: The sleeve (332) is rotatably connected to the threaded rod (33), and a toothed block (331) is fixedly installed at the bottom end of the sleeve (332).

7. The easily detachable bearing according to claim 6, characterized in that: The retaining ring sleeve (34) has a ring array of slots (341) that engage with the retaining tooth block (331) at one end near the retaining tooth block (331).

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