Inspection tool for preventing bearing from lacking steel balls
By designing an inspection tool that includes a steel ball support mechanism and a ventilation structure, the problem of inspection of the number of steel balls inside deep groove ball bearings is solved, and the accurate detection of the number of steel balls is achieved, ensuring the extension of the bearing service life and the avoidance of faults.
Patent Information
- Application Number
- CN202420532941.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-03-19
AI Technical Summary
The prior art is difficult to effectively check the number of steel balls inside deep groove ball bearings, resulting in the possibility of fewer steel balls, which in turn reduces the service life of the bearing or causes failure.
An inspection tooling to prevent the bearing from having few steel balls, including the steel ball support mechanism and ventilation structure. The steel ball support mechanism is equipped with steel ball detection grooves and ventilation holes. The ventilation structure detects the number of steel balls through the air pressure. If the quantity is insufficient, the air pressure will drop and the alarm will stop.
Through this inspection tooling, the accuracy of the number of bearing steel balls can be ensured, and the phenomenon of fewer steel balls can be discovered in a timely manner, so as to avoid shortening the service life of the bearing or failure.
Smart Images
Figure CN222618218U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of bearing manufacturing, in particular to an inspection tool for preventing a bearing from lacking steel balls. Background Art
[0002] Deep groove ball bearings are a common rolling bearing that is mainly used to bear radial loads, and can also bear certain axial loads. Its inner and outer ring raceways are both arc-shaped deep grooves, which enables it to withstand various loads. In addition, the self-aligning ability of deep groove ball bearings is also quite good, which makes it widely used in the industrial field.
[0003] The steel balls inside the deep groove ball bearing are the most important structural parts. They not only support the rotating body to bear the load, but also reduce the friction resistance. The number of steel balls must be guaranteed accurately. If there is a shortage of steel balls inside the bearing, the service life of the bearing will be greatly reduced, and it is more likely to directly cause bearing failure or other serious failure phenomena. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide an inspection tool for preventing the bearing from lacking steel balls.
[0005] In order to achieve the purpose of this utility model, the technical solution adopted is:
[0006] An inspection tool for preventing a bearing from lacking steel balls, comprising:
[0007] A steel ball support mechanism, wherein the upper edge of the steel ball support mechanism body is provided with a plurality of evenly distributed steel ball detection grooves;
[0008] A first vent hole is formed through the steel ball detection groove;
[0009] The inner periphery of the steel ball support mechanism body is a first hollow structure, and a ventilation structure is coaxially arranged in the cavity of the first hollow structure;
[0010] The upper surface of the ventilation structure is arranged in a first annular groove on the inner circumference of the steel ball support mechanism body;
[0011] The upper surface of the ventilation structure is provided with a plurality of second ventilation holes;
[0012] The middle periphery of the ventilation structure is fixed to the lower end of the steel ball supporting mechanism through a limiting portion;
[0013] The inner periphery of the ventilation structure is a second hollow structure, and a guide groove connected to an external ventilation device is arranged in the second hollow structure.
[0014] In a preferred embodiment of the utility model, a first mounting hole is provided at the axis center of the upper surface of the ventilation structure, a threaded groove is provided on the inner circumference of the steel ball support mechanism body near the first annular groove, and a threaded fastener penetrates the first mounting hole and is inserted into the threaded groove.
[0015] In a preferred embodiment of the present utility model, a sealing ring installation groove is provided on the outer periphery of the middle portion of the ventilation structure, and a sealing ring is provided in the sealing ring installation groove.
[0016] The beneficial effects of the utility model are:
[0017] The utility model can ensure that after the bearing ring is fitted with the balls, it can be timely and effectively checked whether the number of the bearing steel balls is correct. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0019] Figure 2 It is a structural schematic diagram (sectional view) of the utility model.
[0020] Figure 3 It is a schematic diagram of the local structure of the utility model Figure 1 .
[0021] Figure 4 It is a schematic diagram of the local structure of the utility model Figure 2 .
[0022] Figure 5 It is a schematic diagram of the local structure of the utility model Figure 3 . DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following structure, the description of the well-known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.
[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0025] like Figure 1-5 The inspection tool shown in the figure for preventing the bearing from lacking steel balls includes a steel ball support mechanism 100 , wherein a plurality of evenly distributed steel ball detection grooves 110 are arranged around the upper edge of the steel ball support mechanism 100 body, and a first vent hole 111 is opened through the steel ball detection groove 110 .
[0026] The inner periphery of the body of the steel ball supporting mechanism 100 is a first hollow structure 101 , and a ventilation structure 200 is coaxially arranged in the cavity of the first hollow structure 101 .
[0027] The upper surface of the ventilation structure 200 is disposed in the first annular groove 102 on the inner periphery of the steel ball support mechanism 100.
[0028] Specifically, a first mounting hole 203 is provided at the axis center of the upper surface of the ventilation structure 200, a threaded groove 103 is provided on the inner circumference of the body of the steel ball support mechanism 100 near the first annular groove 102, and the threaded fastener 300 penetrates the first mounting hole 203 and is inserted into the threaded groove.
[0029] A plurality of second ventilation holes 211 are disposed on the upper surface 210 of the ventilation structure 200 .
[0030] The middle periphery of the ventilation structure 200 is fixed to the lower end of the steel ball supporting mechanism 100 through the limiting portion 220 .
[0031] The inner periphery of the ventilation structure 200 is a second hollow structure 201 , and a guide groove 202 connected to an external ventilation device (not shown in the figure) is arranged in the second hollow structure 201 .
[0032] A sealing ring installation groove 204 is provided on the outer periphery of the middle portion of the ventilation structure 200 , and a sealing ring 400 is provided in the sealing ring installation groove 204 .
[0033] Because of the above structure, the working principle of the utility model is:
[0034] In actual work, when the bearing passes through the ball distribution station after the balls are inserted, the steel balls inside the bearing will be evenly distributed. In this way, the steel balls inside the bearing will evenly fall into the ball pocket holes of the tooling. And the bottom of the steel ball will fall above the first vent hole 111 of the steel ball support mechanism 100, and the surface of the steel ball will block the first vent hole 111.
[0035] When the pneumatic solenoid valve of the external ventilation device (not shown in the figure) is working, it will start to inhale air from the bottom guide groove 202 of the ventilation structure 200, and the introduction of air through the second ventilation hole 211 and the first annular groove 102 of the ventilation structure 200 will simultaneously affect the first ventilation hole 111 of the steel ball support mechanism 100 (because the steel ball support mechanism 100 and the ventilation structure 200 are both hollow structures to facilitate gas circulation).
[0036] If the actual number of bearing steel balls is less and the bottom of the steel balls does not fall above any of the first vent holes 111 of the steel ball support mechanism 100, the air pressure will drop, and the sensor will alarm and shut down.
[0037] On the contrary, if the number of steel balls is correct, the air pressure will rise and reach a certain value, and the test will automatically pass. The sealing performance of the ventilation structure 200 is very important, so the ventilation structure 200 is matched with an O-ring and fixed with a threaded fastener 300, which greatly improves the airtightness function.
Claims
1. An inspection tool for preventing the lack of steel balls in a bearing, characterized in that: include: A steel ball support mechanism, wherein the upper edge of the steel ball support mechanism body is provided with a plurality of evenly distributed steel ball detection grooves; A first vent hole is formed through the steel ball detection groove; The inner periphery of the steel ball support mechanism body is a first hollow structure, and a ventilation structure is coaxially arranged in the cavity of the first hollow structure; The upper surface of the ventilation structure is arranged in a first annular groove on the inner circumference of the steel ball support mechanism body; The upper surface of the ventilation structure is provided with a plurality of second ventilation holes; The middle periphery of the ventilation structure is fixed to the lower end of the steel ball supporting mechanism through a limiting portion; The inner periphery of the ventilation structure is a second hollow structure, and a guide groove connected to an external ventilation device is arranged in the second hollow structure.
2. The inspection tool for preventing the bearing from lacking steel balls as claimed in claim 1, characterized in that: A first mounting hole is arranged at the axis center of the upper surface of the ventilation structure, a threaded groove is arranged on the inner circumference of the steel ball support mechanism body near the first annular groove, and a threaded fastener penetrates through the first mounting hole and is inserted into the threaded groove.
3. The inspection tool for preventing the lack of steel balls in a bearing as claimed in claim 1, characterized in that: A sealing ring installation groove is arranged on the outer periphery of the middle part of the ventilation structure, and a sealing ring is arranged in the sealing ring installation groove.