Bearing dismounting and loading device
By designing a bearing device that integrates disassembly and loading, the problems of low disassembly and loading efficiency and easy damage in traditional methods are solved, and efficient disassembly and loading of bearings are achieved, with uniform force, reducing workload and cost.
Patent Information
- Application Number
- CN202423016032.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing technologies make it difficult to simultaneously and efficiently disassemble and load bearings. Traditional methods are prone to damage bearings or parts, and lack integrated disassembly and loading tools.
A device integrating bearing disassembly and loading is designed, which includes a base and a pressure shaft. The base has a stepped structure and a guide hole, and the pressure shaft is a variable diameter rotating body. The combined use can realize the disassembly and loading of the bearing.
The invention realizes efficient disassembly and loading of the bearing, uniform force, avoids damage to the bearing or parts, has a simple structure, low cost and convenient operation.
Smart Images
Figure CN223476839U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical disassembly and assembly technology, specifically relating to a bearing disassembly and loading device. Background Art
[0002] Bearings are widely used mechanical components in machinery, primarily used to enable rotation of mechanical parts, reduce the coefficient of friction during rotation, and ensure rotational accuracy. Typically, bearings are fixed to the shaft and housing via an interference fit. During the engineering development phase, bearings are usually loaded to test their performance against usage requirements. Furthermore, mechanical devices experience wear and tear during use, necessitating the replacement of components whose service life has exceeded their intended lifespan to ensure normal operation. During machinery maintenance, when bearings are damaged or have reached the end of their service life, they need to be replaced, requiring removal from the component. Therefore, simple, quick, and convenient loading or unloading of bearings would greatly facilitate engineering work.
[0003] Traditional methods for removing old bearings involve using a vise, hammer, and a mallet to slowly knock the bearing out. This method is inefficient, and the small contact area and uneven force during knocking can easily damage the bearing or other parts. Careless handling can also injure the disassembly personnel. Furthermore, most tools either remove bearings or load them; few combine both methods, allowing for both disassembly and loading of the bearing. Utility Model Content
[0004] This invention proposes a bearing disassembly and loading device that integrates bearing disassembly and loading, targeting common radial bearings. It can disassemble the bearing when it is damaged, and also load it for testing during bearing experiments.
[0005] The technical solution of this utility model is implemented as follows:
[0006] A bearing disassembly and loading device, comprising:
[0007] The base adopts a stepped structure design, and has working holes along the axial direction that are larger than the outer diameter of the bearing outer ring;
[0008] The pressure shaft, which is used in conjunction with the base, has an intermediate section shaft adapted to the outer ring of the bearing and an extended shaft adapted to the inner diameter of the inner ring of the bearing.
[0009] As a further embodiment of this utility model: a guide hole is also provided on the base, which is coaxially arranged with the working hole and located below the working hole, and the guide hole is adapted to the extension shaft.
[0010] As a further embodiment of this utility model: a through hole is also provided on the base, which is coaxially arranged with the working hole and the guide hole and located below the guide hole, and the diameter of the through hole is larger than the outer diameter of the protruding shaft.
[0011] As a further embodiment of this utility model: the pressure shaft is a rotating body with a variable diameter, including a handle, an intermediate shaft and an extension shaft arranged in sequence, wherein the handle has the largest diameter and is chamfered to the intermediate shaft.
[0012] As a further embodiment of this utility model: an annular groove centered on the axis of the pressure shaft is designed on the end face of the intermediate section shaft. The outer diameter of the annular groove is larger than the outer diameter of the bearing inner ring and smaller than the inner diameter of the bearing outer ring, and the inner diameter of the annular groove is smaller than the inner diameter of the bearing inner ring.
[0013] As a further embodiment of this utility model, a mesh pattern is designed on the rotating surface of the handle.
[0014] The beneficial effects of this application are as follows:
[0015] 1. Combining bearing disassembly and loading, it has a wide range of applications, enabling both bearing disassembly and loading.
[0016] 2. By using the base and the pressure shaft together, the load is applied to the top end face of the pressure shaft to achieve the disassembly and loading of the bearing. The disassembly / loading steps are simple, which improves the efficiency of bearing disassembly / loading and reduces the workload of bearing disassembly / loading.
[0017] 3. The large and uniform force distribution area during loading helps avoid damage to bearings or parts.
[0018] 4. It has a simple structure, low cost, and is easy to manufacture and carry.
[0019] The present application will be further described in detail below with reference to the accompanying drawings of the embodiments. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the bearing disassembly and loading device of this utility model;
[0021] Figure 2 This is a cross-sectional schematic diagram of the bearing disassembly and loading process of this utility model;
[0022] Figure 3 This is a schematic cross-sectional view of the base of this utility model;
[0023] Figure 4 This is a schematic cross-sectional view of the pressure shaft of this utility model.
[0024] The numbers in the diagram are explained as follows: 1. Base, 2. Pressure shaft, 3. Bearing, 4. Bearing seat, 1-1. Bearing drop area, 1-2. Working hole, 1-3. Guide hole, 1-4. Hole, 2-1. Annular groove, 2-2. Intermediate section shaft, 2-3. Extension shaft, 2-4. Handle. DETAILED DESCRIPTION
[0025] The technical solution of this application will now be clearly and completely described with reference to the accompanying drawings of the embodiments.
[0026] Figures 1 to 4 This is a schematic diagram illustrating one embodiment of the bearing disassembly and loading device of this utility model.
[0027] Referring to the accompanying drawings, the bearing disassembly and loading device of this application is as follows: Figure 1 As shown, it consists of two parts: a base 1 and a pressure shaft 2. Figure 2 As shown, by using the base 1 and the pressure shaft 2 together, the load is applied to the top end face of the pressure shaft 2, thereby realizing the removal of the bearing 3 from the bearing seat 4 or the axial force test of the bearing 3 on the bearing seat 4.
[0028] The base 1 is a disc with a boss, such as... Figure 3 As shown, the base 1 has coaxial holes (1-2, 1-3, 1-4) with three different diameters along the axial direction. Among them, the working hole 1-2 near the boss end and its lower end face form the bearing drop area 1-1. The diameter of the working hole 1-2 should be larger than the outer diameter of the outer ring of the bearing 3, which facilitates loading the bearing 3 and allows the bearing 3 to fall into the bearing drop area 1-1 when disassembling. The diameter of the guide hole 1-3 in the middle section is the same as the inner diameter of the inner ring of the bearing 3, so as to guide and position the pressure shaft 2 and ensure that the bearing 3 is subjected to force along the axial direction when disassembling or loading. The diameter of the through hole 1-4 near the base is slightly larger than the inner diameter of the inner ring of the bearing 3, so as to facilitate the installation and removal of the pressure shaft 2.
[0029] The pressure shaft 2 is a rotating body with a variable diameter, such as... Figure 4 As shown, the diameter of the protruding shaft 2-3 at the bottom of the pressure shaft 2 is the same as the inner diameter of the inner ring of the bearing 3; the diameter of the middle section shaft 2-2 of the pressure shaft 2 is smaller than the outer diameter of the outer ring of the bearing 3; an annular groove 2-1 centered on the axis of the pressure shaft 2 is designed on the end face of the middle section shaft 2-2; the outer diameter of the annular groove 2-1 should be larger than the outer diameter of the inner ring of the bearing 3 and smaller than the inner diameter of the outer ring of the bearing 3; the inner diameter of the annular groove 2-1 is slightly smaller than the inner diameter of the inner ring of the bearing; the upper section of the pressure shaft 2 is the handle 2-4; the handle 2-4 and the middle section shaft 2-2 of the pressure shaft 2 are chamfered to reduce stress concentration; the diameter of the handle 2-4 can be slightly larger to increase the force-bearing area when the bearing 3 is disassembled or loaded; the rotating surface of the handle 2-4 is designed with a textured surface to increase friction, making it easier to pull the pressure shaft 2 out of the base 1 and the bearing 3 after the bearing 3 is disassembled or loaded.
[0030] Thus, the objective of this utility model has been achieved.
[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A bearing disassembly and loading device, characterized in that, include: The base adopts a stepped structure design, and has working holes along the axial direction that are larger than the outer diameter of the bearing outer ring; The pressure shaft, which is used in conjunction with the base, has an intermediate section shaft adapted to the outer ring of the bearing and an extended shaft adapted to the inner diameter of the inner ring of the bearing.
2. The bearing disassembly and loading device according to claim 1, characterized in that, A guide hole is also provided on the base, which is coaxially arranged with the working hole and located below the working hole. The guide hole is adapted to the extension shaft.
3. The bearing disassembly and loading device according to claim 2, characterized in that, A through hole is also provided on the base, which is coaxially arranged with the working hole and the guide hole and located below the guide hole. The diameter of the through hole is larger than the outer diameter of the protruding shaft.
4. The bearing disassembly and loading device according to any one of claims 1-3, characterized in that, The pressure shaft is a rotating body with a variable diameter, including a handle, an intermediate shaft and an extension shaft arranged in sequence. The handle has the largest diameter and transitions to the intermediate shaft with a chamfer.
5. The bearing disassembly and loading device according to claim 4, characterized in that, An annular groove centered on the shaft axis is designed on the end face of the intermediate section shaft. The outer diameter of the annular groove is larger than the outer diameter of the bearing inner ring and smaller than the inner diameter of the bearing outer ring. The inner diameter of the annular groove is smaller than the inner diameter of the bearing inner ring.
6. The bearing disassembly and loading device according to claim 4, characterized in that, The rotating surface of the handle is designed with a textured pattern.