Buffer structure beneficial to high impact resistance of ball bearing and assembly method
By using a disc spring buffer structure in the motor, the problem of bearing damage to the motor in a high-impact environment is solved, achieving normal operation of the bearing and cost savings.
Patent Information
- Application Number
- CN202411460332.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-01-21
AI Technical Summary
Existing motors are prone to damage in high impact environments, especially ball bearings, which lead to degradation of motor performance and special bearings are required to avoid damage, which increases costs and cycles.
A buffer structure including a shaft, bearing, disc spring and end cover is adopted to buffer the impact force of the bearing through the disc spring to avoid internal damage of the bearing, and ensure the bearing through the interference fit between the shaft and the bearing and the clearance fit between the bearing and the bearing chamber. Works normally.
Effectively avoid damage under high shocks, ensure the normal work of the motor system, reduce costs, and avoid the need to use special bearing.
Smart Images
Figure CN119341275A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of motors, and in particular to a buffer structure and an assembly method that are beneficial to a ball bearing's high-impact resistance. Background Art
[0002] Motors are widely used in modern society, whether in industry, manufacturing, service industry or various electrical appliances used in life. In some special environments, motors need to be subjected to high impact, such as electric servos, electric toys, cars, etc.
[0003] At present, most motors will be damaged to varying degrees after being subjected to high impact. Most of the time, this is because the motor's internal bearings (ball bearings) will be damaged after being subjected to high impact, causing the bearings to not work properly. This requires the production of some special bearings to ensure that they will not be damaged by high impact; however, this greatly increases the cost and cycle of the entire motor system. Summary of the invention
[0004] The object of the present invention is to provide a buffer structure which is beneficial for a ball bearing to resist high impact, comprising a shaft, a bearing, a disc spring and an end cover.
[0005] A bearing chamber is provided at one end of the end cover.
[0006] An axial hole is arranged at the center of the end cover, and the axial hole passes through the bearing chamber.
[0007] A bearing is placed in the bearing chamber, and a disc spring is provided between the bearing and the bearing chamber.
[0008] The shaft passes through the shaft hole and also penetrates the inner hole of the bearing and the disc spring.
[0009] Furthermore, the center line of the bearing chamber and the axis of the shaft hole are located on the same straight line.
[0010] Furthermore, the bearing and the shaft are interference fit.
[0011] Furthermore, the bearing is clearance-matched with the bearing chamber.
[0012] A second object of the present invention is to provide an assembly method based on a buffer structure that is beneficial for ball bearings to resist high impact, comprising the following steps:
[0013] 1) Place the disc spring and bearing into the bearing chamber in sequence;
[0014] 2) Insert the shaft into the inner hole of the bearing and the shaft hole to complete the assembly.
[0015] The technical effect of the present invention is unquestionable, and the beneficial effects of the present invention are as follows:
[0016] The present invention uses disc springs to buffer the impact force on the bearing, which not only avoids internal damage to the bearing and ensures the normal operation of the bearing, but also avoids the need to manufacture special bearings and uses ordinary bearings, thus greatly saving costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a diagram of the disc spring assembly;
[0018] In the figure: 1-shaft; 2-bearing; 3-disc spring; 4-end cover. DETAILED DESCRIPTION
[0019] The present invention is further described below in conjunction with the embodiments, but it should not be understood that the above subject matter of the present invention is limited to the following embodiments. Without departing from the above technical ideas of the present invention, various substitutions and changes are made according to the common technical knowledge and customary means in the art, which should all be included in the protection scope of the present invention.
[0020] Embodiment 1:
[0021] A buffer structure that helps a ball bearing resist high impacts includes a shaft 1, a bearing 2, a disc spring 3 and an end cover 4.
[0022] A bearing chamber is provided at one end of the end cover 4 .
[0023] An axial hole is provided at the center of the end cover 4, and the axial hole passes through the bearing chamber.
[0024] A bearing 2 is placed in the bearing chamber, and a disc spring 3 is provided between the bearing 2 and the bearing chamber to buffer the impact force on the bearing 2.
[0025] The shaft 1 passes through the shaft hole and also penetrates the inner hole of the bearing 2 and the disc spring 3.
[0026] Embodiment 2:
[0027] The main structure of this embodiment is the same as that of Embodiment 1. Furthermore, the center line of the bearing chamber and the axis of the shaft hole are located on the same straight line.
[0028] Embodiment 3:
[0029] The main structure of this embodiment is the same as any one of Embodiments 1 to 2. Furthermore, the bearing 2 and the shaft 1 are interference fit.
[0030] Embodiment 4:
[0031] The main structure of this embodiment is the same as any one of Embodiments 1 to 3. Furthermore, the bearing 2 is clearance-matched with the bearing chamber.
[0032] Embodiment 5:
[0033] The main structure of this embodiment is the same as any one of embodiments 1 to 4. Furthermore, an assembly method of a buffer structure that is beneficial to the high impact resistance of a ball bearing based on any one of claims 1 to 4 is characterized in that it includes the following steps:
[0034] 1) Place the disc spring 3 and the bearing 2 into the bearing chamber in sequence;
[0035] 2) Insert shaft 1 into the inner hole of bearing 2 and the shaft hole to complete the assembly.
[0036] Embodiment 6:
[0037] The main structure of this embodiment is the same as any one of embodiments 1 to 5. Furthermore, the disc spring 3 complies with GB / T1972-1992.
[0038] Embodiment 7:
[0039] The main structure of this embodiment is the same as any one of the embodiments 1 to 6. Furthermore, the disc spring (GB / T1972-1992) is used to buffer the impact force on the bearing. At the same time, the shaft 1 needs to support the inner circle of the bearing 2 so that the impact force on the bearing 2 is transmitted to the inner ring of the bearing, thereby avoiding internal damage to the bearing 2 and ensuring that the bearing 2 can work normally. Ordinary bearings can be used in the motor system, which greatly saves costs.
[0040] Embodiment 8:
[0041] The main structure of this embodiment is the same as any one of Embodiments 1 to 7. Furthermore, the shaft 1 needs to be tightly fitted with the bearing 2, and the bearing 2 needs to be loosely fitted with the bearing chamber.
[0042] First put the disc spring 3 into the bearing chamber of the end cover, then assemble it into the bearing 2, and finally assemble the shaft 1 into the bearing 2 to complete the assembly, ensuring that the impact force can be buffered by the disc spring 3 without directly damaging the bearing 2.
Claims
1. A buffer structure that helps a ball bearing resist high impact, characterized in that: It comprises a shaft (1), a bearing (2), a disc spring (3) and an end cover (4). A bearing chamber is provided at one end of the end cover (4); An axial hole is provided at the center of the end cover (4), and the axial hole passes through the bearing chamber; A bearing (2) is placed in the bearing chamber, and a disc spring (3) is provided between the bearing (2) and the bearing chamber; The shaft (1) passes through the shaft hole and also penetrates the inner hole of the bearing (2) and the disc spring (3).
2. A buffer structure that helps ball bearings resist high impact according to claim 1, characterized in that: The center line of the bearing chamber and the axis of the shaft hole are located on the same straight line.
3. The buffer structure for ball bearings to resist high impact according to claim 1, characterized in that: The bearing (2) and the shaft (1) are interference fit.
4. The buffer structure for ball bearings to resist high impact according to claim 1, characterized in that: The bearing (2) is clearance-matched with the bearing chamber.
5. An assembly method of a buffer structure that is beneficial to ball bearings in resisting high impacts based on any one of claims 1 to 4, characterized in that: The following steps are involved: 1) Place the disc spring (3) and bearing (2) into the bearing chamber in sequence. 2) Insert the shaft (1) into the inner hole (2) of the bearing and the shaft hole to complete the assembly.