Standing test tool for detecting oil leakage of sealed bearing
By designing a static test fixture for inspecting oil leakage in sealed bearings, the problem of detecting oil leakage in sealed bearings was solved, the sealing performance was accurately evaluated, and the stable operation of the bearings under actual working conditions was ensured.
Patent Information
- Application Number
- CN202520496326.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Existing technologies make it difficult to inspect the oil leakage of sealed bearings by allowing them to stand for a long time, which makes it impossible to accurately assess their sealing performance and affects the stable operation of bearings and equipment.
A static test fixture for inspecting oil leakage in sealed bearings is designed, including an outer support body, a bearing mounting cavity, first and second sealing grooves and a sealing ring. The sealing performance is ensured through the design of the sealing grooves and sealing rings, and the oil leakage is observed after standing for 24 hours.
It enables effective oil leakage detection of sealed bearings, ensures reliable assessment of sealing performance, and guarantees stable operation of bearings under actual working conditions.
Smart Images
Figure CN223896972U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sealed bearing manufacturing, specifically to a static test fixture for inspecting oil leakage in sealed bearings. Background Technology
[0002] According to the customer's requirements, a 24-hour oil leakage static test needs to be carried out on the sealed ring bearing.
[0003] By allowing the sealed bearing to remain stationary for up to 24 hours, it is possible to closely observe whether any oil leakage occurs. In actual working scenarios, the sealing performance of the bearing directly affects the stable operation of the entire mechanical system. If a sealing problem leads to oil leakage, it will not only affect the service life of the bearing itself, but may also damage other connected components, thereby affecting the normal operation of the entire equipment.
[0004] This static test is like a rigorous examination, accurately verifying whether the bearing's sealing performance meets the standards. Only through such long-term, meticulous monitoring of oil leaks can reliable data be provided to customers to determine whether the bearing with the sealing ring meets the requirements, thereby ensuring that the bearing put into use can stably and efficiently perform its due function under actual working conditions, meeting the stringent sealing requirements of various equipment. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the purpose of this utility model is to provide a static test fixture for inspecting oil leakage in sealed bearings.
[0006] To achieve the objective of this utility model, the technical solution adopted is as follows:
[0007] A static test fixture for inspecting oil leakage in sealed bearings includes:
[0008] An outer support body for supporting a sealed bearing is provided in the outer support body, and the inner wall of the bearing mounting cavity is in contact with the lower surface near the sealed bearing through a support boss.
[0009] A first sealing groove is provided on the inner wall of the bearing mounting cavity near the upper surface of the sealed bearing. A first sealing ring is provided in the first sealing groove to contact and seal with the first side surface of the upper surface of the sealed bearing.
[0010] A sealing test structure, wherein the lower end of the sealing test structure is a T-shaped structure that contacts a sealing bearing, and the T-shaped structure is provided with a second sealing groove near the upper surface of the sealing bearing. A second sealing ring is provided in the second sealing groove to contact and seal with the second side of the upper surface of the sealing bearing.
[0011] In a preferred embodiment of the present invention, the horizontal height of the second sealing groove is higher than that of the first sealing groove.
[0012] In a preferred embodiment of the present invention, the upper end of the T-shaped structure is provided with a cylindrical portion that provides downward pressure.
[0013] In a preferred embodiment of this utility model, the upper opening of the outer support body allows test oil to be dripped into the internal sealed bearing.
[0014] In a preferred embodiment of this utility model, the first sealing ring is a first O-ring.
[0015] In a preferred embodiment of this utility model, the second sealing ring is a second O-ring.
[0016] The beneficial effects of this utility model are as follows:
[0017] The static test fixture for inspecting oil leakage in sealed bearings according to this utility model can effectively inspect whether the sealed bearing has oil leakage, thereby judging its sealing performance. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .
[0019] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .
[0020] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 . Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, in the following descriptions, well-known structures and technologies have been omitted to avoid unnecessary confusion regarding the concept of this utility model.
[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] like Figure 1 As shown in Figure 2 or 3, a static test fixture for inspecting oil leakage in a sealed bearing includes an outer support body 100 for supporting the sealed bearing 200. A bearing mounting cavity 101 is provided inside the outer support body 100. The inner wall of the bearing mounting cavity 101 contacts the lower surface 201 of the sealed bearing 200 via a support boss 102.
[0024] The upper opening of the outer support 100 allows for the dripping of test oil into the internal sealed bearing 200 as needed.
[0025] A first sealing groove 110 is provided on the inner wall of the bearing mounting cavity 101 near the side wall of the upper surface of the sealed bearing 200. A first sealing ring 120 is provided in the first sealing groove 110 to make contact and seal with the first side 202 near the upper surface of the sealed bearing 200.
[0026] The lower end of the sealing test structure 300 is a T-shaped structure 310 that contacts the sealing bearing 200, and the upper end of the T-shaped structure 310 is provided with a cylindrical part 340 that provides downward pressure.
[0027] The T-shaped structure 310 has a second sealing groove 320 located near the upper surface of the sealed bearing 200. A second sealing ring 330 is provided in the second sealing groove 320 to make contact and seal with the second side surface 203 near the upper surface of the sealed bearing 200.
[0028] The horizontal height of the second sealing groove 320 is higher than the horizontal height of the first sealing groove 110.
[0029] Because of the above structure, the working principle of this utility model is as follows:
[0030] Before the test begins, the first and second O-rings are visually inspected to ensure that they are free from deformation and damage. Then, they are installed in the first and second sealing grooves respectively.
[0031] Then the test sealed bearing is placed inside the outer support 100, so that the bearing mounting cavity of the outer support 100 and the outer diameter of the sealed bearing fit together tightly.
[0032] At the same time, the T-shaped structure is installed into the inner hole of the sealed bearing, so that the T-shaped structure and the inner hole of the sealed bearing fit tightly together to ensure a seal.
[0033] A certain amount of oil is dripped onto the upper surface of the sealed bearing, and after 24 hours, the lower surface of the sealed bearing is observed to see if there is any oil leakage.
[0034] The static test fixture for inspecting oil leakage in sealed bearings according to this utility model can effectively inspect whether the sealed bearing has oil leakage, thereby judging its sealing performance.
[0035] The above shows and describes the basic principles, main features, and advantages of this utility model.
[0036] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of this utility model as defined by the appended claims and their equivalents.
Claims
1. A static test fixture for inspecting oil leakage in sealed bearings, characterized in that, include: An outer support body for supporting a sealed bearing is provided in the outer support body, and the inner wall of the bearing mounting cavity is in contact with the lower surface near the sealed bearing through a support boss. A first sealing groove is provided on the inner wall of the bearing mounting cavity near the upper surface of the sealed bearing. A first sealing ring is provided in the first sealing groove to contact and seal with the first side surface of the upper surface of the sealed bearing. A sealing test structure, wherein the lower end of the sealing test structure is a T-shaped structure that contacts a sealing bearing, and the T-shaped structure is provided with a second sealing groove near the upper surface of the sealing bearing. A second sealing ring is provided in the second sealing groove to contact and seal with the second side of the upper surface of the sealing bearing.
2. The static test fixture for inspecting oil leakage in sealed bearings as described in claim 1, characterized in that, The horizontal height of the second sealing groove is higher than that of the first sealing groove.
3. The static test fixture for inspecting oil leakage in sealed bearings as described in claim 1, characterized in that, The upper end of the T-shaped structure is provided with a cylindrical part that provides downward pressure.
4. The static test fixture for inspecting oil leakage in sealed bearings as described in claim 1, characterized in that, The upper opening of the outer support allows test oil to be dripped into the internal sealed bearing.
5. The static test fixture for inspecting oil leakage in sealed bearings as described in claim 1, characterized in that, The first sealing ring is a first O-ring.
6. The static test fixture for inspecting oil leakage in sealed bearings as described in claim 1, characterized in that, The second sealing ring is a second O-ring.