Bearing retainer

Abstract

The invention discloses a bearing retainer, and relates to the technical field of bearing retainers, the bearing retainer comprises an annular body, and the annular body is formed by combining an upper half ring body and a lower half ring body; the rotor rotates in the annular body, and the rotor is used for assisting the bearing in rotating; and the limiting assembly is arranged on one side of the annular body, and the limiting assembly is used for limiting the rotor. According to the invention, the rotor is limited by the limiting assembly, so that the rotor is more convenient to install and more convenient to disassemble and replace, the situation that the annular body is easily damaged and is inconvenient to disassemble when the rotor is installed due to a transmission embedded mode is avoided, and meanwhile, the bearing is convenient to install due to the detachable arrangement of the upper half ring body and the lower half ring body.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing cages, and particularly relates to a bearing cage. Background Art

[0002] A cage (i.e., a bearing cage, also known as a bearing retainer) refers to a bearing part that partially wraps all or part of the rolling elements and moves therewith, used to isolate the rolling elements, and usually also guides the rolling elements and holds them in the bearing. When a rolling bearing is working, especially when the load is complex and rotating at high speed, the cage has to bear a large centrifugal force, impact and vibration. There is a large sliding friction between the cage and the rolling elements, generating a large amount of heat. The combined action of force and heat will lead to cage failure, and in severe cases, cage burning and fracture will occur. Therefore, it is required that the cage material has good thermal conductivity, good wear resistance, a small friction coefficient, a small density, a certain combination of strength and toughness, good elasticity and stiffness, a thermal expansion coefficient similar to that of the rolling elements, and good machining process performance. In addition, the cage is also affected by chemical media such as lubricants, lubricant additives, organic solvents and coolants.

[0003] The existing technology has the following deficiencies: Most of the existing rotors are installed in an embedded manner during installation, making it easy for the bearing cage to be damaged during the installation of the rotor. At the same time, when the cage made of metal rotates at high speed, the friction coefficient between it and the rolling elements is relatively large, generating more heat and easily affecting the rotation effect. Summary of the Invention

[0004] The purpose of the present invention is to provide a bearing cage to solve the problems existing in the above background art.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A bearing cage includes an annular body, and the annular body is composed of an upper half-ring body and a lower half-ring body;

[0007] A rotor rotates inside the annular body, and the rotor is used to assist the bearing in rotating;

[0008] A limiting component is arranged on one side of the annular body, and the limiting component is used to limit the rotor.

[0009] As a further solution of the present invention: A plurality of groups of process grooves are arranged in an inner ring of the annular body, and limiting columns are arranged in the process grooves. At the same time, the limiting columns are fixedly connected to the inside of the annular body, and the rotor rotates on the limiting columns.

[0010] As a further solution of the present invention: The rotor, the limiting columns and the process grooves are evenly arranged along the circumferential direction of the annular body.

[0011] As a further solution of the present invention: Connecting blocks are fixedly connected to both sides of one end of the upper semi-ring body, connecting grooves are provided on both sides of one end of the lower semi-ring body, and the connecting blocks are slidably connected in the connecting grooves.

[0012] As a further solution of the present invention: The limiting component includes a limiting disc, and the limiting disc slides on one side of the annular body;

[0013] Limiting blocks, two groups of limiting blocks are provided and respectively slide on both sides of the middle of the limiting disc;

[0014] Springs, the springs are arranged in the middle of the two groups of limiting blocks and are respectively connected to the two groups of limiting blocks;

[0015] Moving grooves, the moving grooves are provided on both sides of the top of the annular body, and moving plates are slidably connected in the moving grooves. At the same time, one side of the moving plate is connected to the top of the limiting block.

[0016] As a further solution of the present invention: The annular body is made of a composite material, and the composite material includes the following components: carbon fiber, resin matrix, nano-ceramic particles, graphene, lubricating material.

[0017] As a further solution of the present invention: The mass parts of each component in the composite material are: 35-55 parts of carbon fiber, 20-40 parts of resin matrix, 10-20 parts of nano-ceramic particles, 5-10 parts of graphene, and 5-15 parts of lubricating material.

[0018] As a further solution of the present invention: The inner cavity of the annular body is filled with solid lubricating grease.

[0019] As a further solution of the present invention: Release ports are provided on both sides of the process groove of the annular body, and the release ports communicate with the placement place of the solid lubricating grease in the inner cavity of the annular body. The release ports are in contact with the surface of the rotor.

[0020] As a further solution of the present invention: A plurality of reinforcing ribs are provided in the annular body, and the reinforcing ribs are distributed radially.

[0021] The beneficial effects of the present invention:

[0022] (1) In the present invention, the rotor is limited by the limiting component, so that the rotor is more convenient to install and easier to disassemble and replace. It avoids the damage to the annular body caused by the transmission embedding during the installation of the rotor and is not convenient for disassembly. At the same time, the disassembly setting of the upper semi-ring body and the lower semi-ring body improves the convenience during the installation of the bearing;

[0023] (2) In the present invention, solid lubricating grease is evenly distributed inside the annular inner cavity, so that the solid lubricating grease in the annular inner cavity can be affected by high temperature and then melt, flow out from the release port and then be guided to the surface of the rotor. The surface of the rotor contacts with the surface of the bearing, so that the liquid lubricating grease is evenly smeared on the bearing, thereby improving the lubricity when the bearing rotates, effectively reducing friction, and further improving the effect and efficiency when the bearing rotates;

[0024] (3) In the present invention, by using a composite material for the annular body, the weight of the bearing cage is greatly reduced, the inertial force of the bearing is reduced, and it can withstand large loads and impacts, ensuring the stable operation of the bearing. At the same time, it can effectively reduce the wear between the cage and the rolling elements, extend the service life of the bearing, and can reduce the friction force between the cage and the rolling elements, reduce energy consumption, and improve the operating efficiency of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the drawings.

[0026] Figure 1 is a schematic three-dimensional structure of a bearing cage of the present invention Figure 1 ;

[0027] Figure 2 is a schematic three-dimensional structure of a bearing cage of the present invention Figure 2 ;

[0028] Figure 3 is a schematic exploded view of the annular body of the present invention;

[0029] Figure 4 is a schematic cross-sectional structure of a bearing cage of the present invention Figure 1 ;

[0030] Figure 5 is Figure 4 an enlarged view of part A in

[0031] Figure 6 is a schematic cross-sectional structure of a bearing cage of the present invention Figure 2 ;

[0032] Figure 7 is an exploded view of a bearing cage of the present invention.

[0033] In the figure: 1. Annular body; 101. Upper half-ring body; 102. Lower half-ring body; 103. Process groove; 104. Connection block; 105. Connection groove; 2. Rotor; 3. Limiting column; 4. Limiting component; 400. Limiting disk; 401. Moving groove; 402. Moving plate; 403. Limiting block; 404. Spring; 5. Release port; 6. Reinforcing rib; 7. Solid lubricating grease. DETAILED DESCRIPTION OF THE INVENTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1

[0036] Please refer to Figure 1-7 As shown, the present invention is a bearing cage, including an annular body 1, and the annular body 1 is composed of an upper half-ring body 101 and a lower half-ring body 102 combined;

[0037] A rotor 2 rotates inside the annular body 1, and the rotor 2 is used to assist the bearing in rotating;

[0038] A limiting component 4 is arranged on one side of the annular body 1, and the limiting component 4 is used to limit the rotor 2.

[0039] It should be noted that both the upper half-ring body 101 and the lower half-ring body 102 are arc-shaped.

[0040] In the present invention, preferably, a plurality of process grooves 103 are annularly arranged inside the annular body 1, and limiting columns 3 are arranged in the process grooves 103. At the same time, the limiting columns 3 are fixedly connected inside the annular body 1, and the rotor 2 rotates on the limiting columns 3.

[0041] It should be noted that the limiting columns 3 penetrate through the middle of the rotor 2, enabling the rotor 2 to rotate evenly when rotating. A connection hole is arranged on one side surface of the annular body 1 for facilitating the placement of the rotor 2.

[0042] In the present invention, preferably, the rotor 2, the limiting columns 3, and the process grooves 103 are evenly arranged along the circumferential direction of the annular body 1.

[0043] It should be noted that the rotor 2, the limiting columns 3, and the process grooves 103 are evenly arranged along the circumferential direction of the annular body 1, which can balance the overall strength distribution of the cage and avoid adverse working phenomena such as offset, vibration, noise, wear, and fracture caused by uneven strength.

[0044] In the present invention, preferably, connection blocks 104 are fixedly connected to both sides of one end of the upper half-ring body 101, connection grooves 105 are arranged on both sides of one end of the lower half-ring body 102, and the connection blocks 104 are slidably connected in the connection grooves 105.

[0045] In the present invention, preferably, the limiting component 4 includes a limiting disk 400, and the limiting disk 400 slides on one side of the annular body 1;

[0046] The limiting blocks 403, with two sets of the limiting blocks 403 respectively sliding on both sides of the middle part of the limiting disk 400;

[0047] The springs 404, with the springs 404 arranged in the middle of the two sets of limiting blocks 403 and respectively connected to the two sets of limiting blocks 403;

[0048] The moving grooves 401, with the moving grooves 401 arranged on both sides of the top of the annular body 1, and both the moving grooves 401 are slidably connected with moving plates 402, and at the same time, one side of the moving plates 402 is connected to the top of the limiting blocks 403.

[0049] It should be noted that the limiting disk 400 is placed in the connecting hole, and the bottom of the limiting disk 400 is in contact with the top of the rotor 2. A groove is arranged inside the annular body 1 for connecting with the side of the limiting block 403 away from the moving plate 402 for limiting.

[0050] During the implementation process, during assembly, the rotor 2 is placed and sleeved on the limiting column 3 through the connecting hole on one side of the annular body 1. Push the two moving plates 402 inward. Both of the two moving plates 402 drive the two limiting blocks 403 to move inward along the middle part of the limiting disk 400. The two limiting blocks 403 move inward to squeeze the springs 404. Place the limiting disk 400 in the connecting hole on the surface of the annular body 1. The bottom of the limiting disk 400 is in contact with the top of the rotor 2. Release the moving plates 402. The two limiting blocks 403 move outward along the limiting disk 400 into the groove inside the annular body 1 under the reaction force of the springs 404 to limit the rotor 2 to prevent the rotor 2 from falling off, making the installation of the rotor 2 more convenient and more facilitating the disassembly and replacement of the rotor 2, avoiding damage to the annular body 1 caused by the embedded transmission during the installation of the rotor 2 and being not easy to disassemble. Place the bearing in the middle of the upper half ring body 101 and the lower half ring body 102, making the outer ring of the bearing in contact with the rotor 2. Pick up the upper half ring body 101 to make the upper half ring body 101 and the lower half ring body 102 in a height difference. Push the upper half ring body 101 into the connecting groove 105 through the connecting block 104 to install the bearing in the middle of the upper half ring body 101 and the lower half ring body 102, making the bearing remain removable to ensure the convenience during the installation of the bearing.

[0051] Embodiment 2

[0052] In the present invention, preferably, the annular body 1 is made of a composite material, and the composite material includes the following components: carbon fiber, resin matrix, nano-ceramic particles, graphene, lubricating material.

[0053] It should be noted that carbon fiber, as a reinforcing material, has the characteristics of high strength, high modulus and low density, which can significantly improve the strength and stiffness of the cage while reducing its weight; the resin matrix, as a matrix material, has good toughness and processing properties, and can bond reinforcing materials such as carbon fiber, nano-ceramic particles, graphene and lubricating materials together to form a uniform composite material structure; nano-ceramic particles have excellent wear resistance and thermal conductivity, which can effectively reduce the friction coefficient between the cage and the rolling elements, reduce heat generation, and improve the wear resistance of the cage; graphene has the characteristics of high thermal conductivity and low friction coefficient, which can further improve the thermal conductivity of the cage and reduce the friction coefficient, thereby extending the service life of the bearing; the lubricating material can maintain a stable lubrication state in the bearing.

[0054] In the present invention, preferably, the mass parts of the components in the composite material are: 35-55 parts of carbon fiber, 20-40 parts of resin matrix, 10-20 parts of nano-ceramic particles, 5-10 parts of graphene, and 5-15 parts of lubricating material.

[0055] It should be noted that these materials can achieve the best comprehensive performance in terms of strength, stiffness, wear resistance, thermal conductivity, friction coefficient and lubrication performance of the composite retainer by reasonably adjusting the proportion of each component.

[0056] In the present invention, preferably, the inner cavity of the annular body 1 is filled with solid grease 7 .

[0057] It should be noted that the solid grease 7 is evenly distributed in the inner cavity of the annular body 1 .

[0058] In the present invention, preferably, release ports 5 are provided on both sides of the process groove 103 of the annular body 1 , and the release ports 5 are communicated with the placement of the solid grease 7 in the inner cavity of the annular body 1 , and the release ports 5 are in contact with the surface of the rotor 2 .

[0059] In the present invention, preferably, a plurality of reinforcing ribs 6 are provided in the annular body 1, and the reinforcing ribs 6 are radially distributed.

[0060] It should be noted that the radial distribution of the reinforcing ribs 6 can improve the structural strength and rigidity of the cage, making it less likely to deform or break when subjected to greater centrifugal force, impact and vibration.

[0061] Implementation process: When the bearing rotates along the rotor 2, and the rotor 2 rotates along the annular body 1. When the rotation speed of the bearing is relatively high, high temperature is generated, causing the annular body 1 and the rotor 2 in contact with the bearing to conduct the high temperature. The solid lubricating grease 7 in the inner cavity of the annular body 1 is affected by the high temperature and melts, flows out from the release port 5 and is guided to the surface of the rotor 2. The surface of the rotor 2 is in contact with the surface of the bearing, enabling the liquid lubricating grease to be evenly applied to the bearing, thereby improving the lubricity when the bearing rotates, effectively reducing friction, and further improving the effect and efficiency when the bearing rotates.

[0062] The above has described a detailed implementation example of the present invention. However, the content described above is only a preferred implementation example of the present invention and cannot be considered as limiting the implementation scope of the present invention. Any equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A bearing retainer, characterized in that, It includes an annular body (1), and the annular body (1) is composed of an upper half annular body (101) and a lower half annular body (102); A rotor (2), the rotor (2) rotates inside the annular body (1), and the rotor (2) is used to assist the bearing to rotate; A limiting component (4), the limiting component (4) is arranged on one side of the annular body (1), and the limiting component (4) is used to limit the rotor (2).

2. A bearing cage according to claim 1, characterized in that, A plurality of process grooves (103) are annularly arranged inside the annular body (1), and limiting columns (3) are arranged in the process grooves (103). At the same time, the limiting columns (3) are fixedly connected inside the annular body (1), and the rotor (2) rotates on the limiting columns (3).

3. The bearing cage according to claim 2, characterized in that The rotor (2), the limiting columns (3), and the process grooves (103) are evenly arranged along the circumferential direction of the annular body (1).

4. A bearing cage according to claim 1, characterized in that, Connecting blocks (104) are fixedly connected to both sides of one end of the upper half annular body (101), connecting grooves (105) are arranged on both sides of one end of the lower half annular body (102), and the connecting blocks (104) are slidably connected in the connecting grooves (105).

5. A bearing cage according to claim 1, characterized in that, The limiting component (4) includes a limiting disc (400), and the limiting disc (400) slides on one side of the annular body (1); Limiting blocks (403), there are two groups of limiting blocks (403) and they slide on both sides of the middle of the limiting disc (400) respectively; Springs (404), the springs (404) are arranged in the middle of the two groups of limiting blocks (403) and are respectively connected to the two groups of limiting blocks (403); Moving grooves (401) are arranged on both sides of the top of the annular body (1), and moving plates (402) are slidably connected in the moving grooves (401). At the same time, one side of the moving plate (402) is connected to the top of the limiting block (403).

6. A bearing cage according to claim 1, characterized in that, The annular body (1) is made of a composite material, and the composite material includes the following components: carbon fiber, resin matrix, nano-ceramic particles, graphene, lubricating material.

7. The bearing retainer according to claim 6, characterized in that, The mass parts of each component in the composite material are: 35 - 55 parts of carbon fiber, 20 - 40 parts of resin matrix, 10 - 20 parts of nano-ceramic particles, 5 - 10 parts of graphene, and 5 - 15 parts of lubricating material.

8. A bearing cage according to claim 1, characterized in that, The inner cavity of the annular body (1) is filled with solid lubricating grease (7).

9. A bearing cage according to claim 1, characterized in that, Release ports (5) are arranged on both sides of the annular body (1) where the process grooves (103) are provided, and the release ports (5) communicate with the placement place of the solid lubricating grease (7) in the inner cavity of the annular body (1), and the release ports (5) are in contact with the surface of the rotor (2).

10. A bearing cage according to claim 1, characterized in that, A plurality of reinforcing ribs (6) are arranged in the annular body (1), and the reinforcing ribs (6) are distributed radially.

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