Device for prolonging service life of self-lubricating bearing

Abstract

The utility model relates to the technical field of self-lubricating bearings, in particular to a self-lubricating bearing service life prolonging device which comprises a bearing outer ring, a bearing inner ring is arranged in the bearing outer ring, concave holes are evenly formed in the outer wall of the bearing inner ring, first solid lubricants are arranged in the concave holes, and second solid lubricants are arranged in the first solid lubricants. Grooves are evenly formed in the inner wall of the bearing outer ring in a front-back symmetry mode, second solid lubricants are arranged in the grooves, oil leakage holes are evenly formed in the middle of the inner wall of the bearing outer ring, an oil filling hole is formed in the middle of the outer wall of the bearing outer ring, and a hole plug is arranged in the oil filling hole. Heat dissipation through holes are evenly formed in the front face of the bearing inner ring, the lubrication degree of the bearing outer ring and the bearing inner ring can be increased through the concave hole, the first solid lubricant, the groove and the second solid lubricant, and therefore when the bearing outer ring and the bearing inner ring rotate, the friction force between the bearing outer ring and the bearing inner ring can be reduced, and the service life of the bearing is prolonged. The service life of the bearing is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of self-lubricating bearing technology, specifically a device for extending the life of self-lubricating bearings. Background Technology

[0002] Self-lubricating bearings are a type of sliding bearing product, specifically a sliding bearing made by perforating and slotting holes and using a solid lubricant. Solid-inserted self-lubricating bearings are products made by embedding a solid lubricant of a specific shape and strength into the friction surfaces of ordinary sliding bearings (shoulder sleeves), bearing shells, sliders, guide rails, and other parts with relative mechanical movement, through a reasonable perforation and slotting pattern. Embedded lubricants include: graphite, sulfides (molybdenum disulfide, tungsten disulfide, etc.), calcium fluoride, synthetic resins, polytetrafluoroethylene, etc. The coefficient of thermal expansion of the embedded solid lubricant is greater than that of the embedded substrate. The type of embedded solid lubricant is selected based on the operating conditions.

[0003] Existing self-lubricating bearings only have solid lubricant on the outer wall of the inner ring, resulting in a short service life. Furthermore, the inner ring generates heat during rotation, which also affects the service life.

[0004] Therefore, a self-lubricating bearing life extension device is needed to improve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a self-lubricating bearing life extension device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A self-lubricating bearing life extension device includes a bearing outer ring, an inner bearing ring disposed inside the outer ring, recesses uniformly formed on the outer wall of the inner ring, a first solid lubricant disposed inside the recesses, symmetrical grooves uniformly formed on the front and back of the inner wall of the outer ring, a second solid lubricant disposed inside the grooves, an oil leakage hole uniformly formed in the middle of the inner wall of the outer ring, an oil filling hole formed in the middle of the outer wall of the outer ring, a plug disposed inside the oil filling hole, and heat dissipation through holes uniformly formed on the front side of the inner ring.

[0008] As a preferred embodiment of this utility model, the first solid lubricant has a cylindrical structure design, the first solid lubricant is embedded in the concave hole, and the connection between the first solid lubricant and the concave hole is a fixed bonding.

[0009] As a preferred embodiment of this utility model, the groove is designed as a circular ring structure, the second solid lubricant is embedded in the groove, and the connection between the second solid lubricant and the groove is a fixed adhesive bonding.

[0010] As a preferred embodiment of this utility model, the inner middle part of the outer ring of the bearing is designed as a hollow structure, and the oil filling hole and the oil leakage hole are connected in a through manner.

[0011] As a preferred embodiment of this utility model, the plug is adapted to the size of the filling hole, and the connection structure between the plug and the filling hole is a sliding plug connection.

[0012] As a preferred embodiment of this utility model, the heat dissipation through holes and concave holes are designed to be staggered.

[0013] As a preferred embodiment of this utility model, the outer wall of the bearing inner ring is tightly attached to the inner wall of the bearing outer ring, and the connection between the bearing inner ring and the bearing outer ring is a rotatable connection.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, the concave hole, the first solid lubricant, the groove, and the second solid lubricant can increase the lubrication of the outer ring and the inner ring of the bearing. The oil leakage hole, the oil filling hole, and the plug can facilitate the addition of lubricating oil between the outer ring and the inner ring of the bearing. This reduces the friction between the outer ring and the inner ring of the bearing when they rotate, thus increasing the service life of the bearing. The heat dissipation hole can dissipate heat from the inner ring of the bearing in a timely manner. In summary, the design can extend the overall service life of the self-lubricating bearing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;

[0017] Figure 2 This is a schematic diagram of the external structure of the bearing inner ring of this utility model;

[0018] Figure 3 This is a schematic diagram of the external structure of the bearing outer ring of this utility model.

[0019] In the diagram: 1. Bearing outer ring; 2. Bearing inner ring; 3. Concave hole; 4. First solid lubricant; 5. Groove; 6. Second solid lubricant; 7. Oil leakage hole; 8. Oil filling hole; 9. Hole plug; 10. Heat dissipation through hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0025] A self-lubricating bearing life extension device includes an outer bearing ring 1, an inner bearing ring 2 disposed inside the outer bearing ring 1, recesses 3 uniformly formed on the outer wall of the inner bearing ring 2, a first solid lubricant 4 disposed inside the recesses 3, grooves 5 symmetrically and uniformly formed on the front and back of the inner wall of the outer bearing ring 1, a second solid lubricant 6 disposed inside the grooves 5, an oil leakage hole 7 uniformly formed in the middle of the inner wall of the outer bearing ring 1, an oil filling hole 8 formed in the middle of the outer wall of the outer bearing ring 1, a plug 9 disposed inside the oil filling hole 8, and heat dissipation through holes 10 uniformly formed on the front side of the inner bearing ring 2.

[0026] In this embodiment, the first solid lubricant 4 has a cylindrical structure and is embedded in the recess 3. The connection between the first solid lubricant 4 and the recess 3 is a fixed adhesive. The groove 5 has a circular structure, and the second solid lubricant 6 is embedded in the groove 5. The connection between the second solid lubricant 6 and the groove 5 is also a fixed adhesive. The inner middle of the bearing outer ring 1 has a hollow structure, and the oil filling hole 8 and the oil leakage hole 7 are connected in a through manner. The plug 9 is sized and matched to the oil filling hole 8, and the connection between the plug 9 and the oil filling hole 8 is a sliding plug. The heat dissipation through hole 10 is staggered from the recess 3. The outer wall of the bearing inner ring 2 is tightly attached to... The inner wall of the bearing outer ring 1, and the connection between the bearing inner ring 2 and the bearing outer ring 1 is a rotatable connection. The concave hole 3, the first solid lubricant 4, the groove 5, and the second solid lubricant 6 can increase the lubrication of the bearing outer ring 1 and the bearing inner ring 2. The oil leakage hole 7, the oil filling hole 8, and the hole plug 9 can facilitate the addition of lubricating oil between the bearing outer ring 1 and the bearing inner ring 2. This can reduce the friction between the bearing outer ring 1 and the bearing inner ring 2 when they rotate, thereby increasing the service life of the bearing. The heat dissipation hole 10 can dissipate heat from the bearing inner ring 2 in a timely manner. In summary, the design can extend the overall service life of the self-lubricating bearing.

[0027] The working process of this utility model is as follows: First, the inner ring 2 of the bearing is placed inside the outer ring 1 of the bearing. When the inner ring 2 rotates inside the outer ring 1, the first solid lubricant 4 and the second solid lubricant 6 will lubricate the inner ring 2 and the outer ring 1. Then, the heat generated by the inner ring 2 will be discharged through the heat dissipation hole 10. When lubricating oil needs to be added, the plug 9 is removed from the oil filling hole 8, and the lubricating oil is added to the outer ring 1 through the oil filling hole 8. Then, the lubricating oil will leak into the space between the outer ring 1 and the inner ring 2 through the oil leakage hole 7. Finally, the plug 9 is inserted into the oil filling hole. Within 8, the lubrication of the bearing outer ring 1 and bearing inner ring 2 can be increased through the concave hole 3, the first solid lubricant 4, the groove 5, and the second solid lubricant 6. The oil leakage hole 7, the oil filling hole 8, and the hole plug 9 can easily add lubricating oil between the bearing outer ring 1 and bearing inner ring 2, thereby reducing the friction between the bearing outer ring 1 and bearing inner ring 2 when they rotate, increasing the service life of the bearing. The heat dissipation through hole 10 can dissipate heat from the bearing inner ring 2 in a timely manner. In summary, the design can extend the overall service life of the self-lubricating bearing.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-lubricating bearing life extension device comprising a bearing outer ring (1), characterized in that: The inner part of the bearing outer ring (1) is provided with a bearing inner ring (2), the outer wall of the bearing inner ring (2) is uniformly provided with a recess hole (3), the inner part of the recess hole (3) is provided with a first solid lubricant (4), the inner wall of the bearing outer ring (1) is uniformly provided with a recess (5) which is symmetrical front and back, the inner part of the recess (5) is provided with a second solid lubricant (6), the middle part of the inner wall of the bearing outer ring (1) is uniformly provided with an oil leakage hole (7), the middle part of the outer wall of the bearing outer ring (1) is provided with an oil hole (8), the inner part of the oil hole (8) is provided with a hole plug (9), the front surface of the bearing inner ring (2) is uniformly provided with a heat dissipation through hole (10).

2. The self-lubricating bearing life extension device of claim 1, wherein: The first solid lubricant (4) is designed in a cylindrical structure, the first solid lubricant (4) is embedded in the recess hole (3), and the connection mode of the first solid lubricant (4) and the recess hole (3) is fixed bonding.

3. The self-lubricating bearing life extension device of claim 1, wherein: The recess (5) is designed in a circular ring structure, the second solid lubricant (6) is embedded in the recess (5), and the connection mode of the second solid lubricant (6) and the recess (5) is fixed bonding.

4. The self-lubricating bearing life extension device of claim 1, wherein: The inner part of the bearing outer ring (1) is designed in a hollow structure, and the oil hole (8) is connected with the oil leakage hole (7).

5. The self-lubricating bearing life extension device of claim 1, wherein: The structure size of the hole plug (9) and the oil hole (8) is matched, and the connection structure of the hole plug (9) and the oil hole (8) is sliding plug connection.

6. The self-lubricating bearing life extension device of claim 1, wherein: The heat dissipation through hole (10) and the recess hole (3) are designed in a staggered structure.

7. The self-lubricating bearing life extension device of claim 1, wherein: The outer wall of the bearing inner ring (2) is close to the inner wall of the bearing outer ring (1), and the connection mode of the bearing inner ring (2) and the bearing outer ring (1) is rotating connection.

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