Wear-resistant bearing shell

Abstract

The utility model relates to the technical field of bearings, and discloses a wear-resistant bearing shell, which solves the problem that the existing wear-resistant bearing shell does not have the self-lubricating capability, so that the wear-resistant bearing shell is worn when the lubricating oil of the bearing is dried, and comprises an outer shell, an oil injection nozzle is fixedly installed on the circumferential face of the outer shell, a plurality of rollers are movably installed between the outer shell and the inner shell, positioning rings are rotationally installed between the two ends of each roller, an oil storage cavity is formed in the upper portion of the outer shell, a pushing block is arranged on the upper side in the outer shell, and oil absorption cotton is fixedly installed at the bottom of the pushing block. A moving column is fixedly mounted at the top of the pushing block, two oil inlet grooves are formed in the upper portion in the moving column, and an oil passing groove is formed in the middle in the moving column; the wear-resistant bearing shell has the self-lubricating capability, so that the wear-resistant bearing shell is prevented from being worn when the lubricating oil of the bearing is dried up, and the service life of the bearing shell is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bearing technical field, concretely is a kind of wear-resistant bearing shell. BACKGROUND

[0002] Wear-resistant bearing shell is a kind of shell structure specially designed to improve the wear resistance of bearing;It refers to the bearing shell made of high-strength, high-hardness wear-resistant material, which mainly protects the bearing from external damage and improves the wear resistance of the bearing, prolongs the service life of the bearing;Wear-resistant bearing shell is usually made of high-strength alloy steel, wear-resistant cast iron, ceramic or composite materials;These materials have excellent wear resistance, hardness and fatigue resistance, which can effectively improve the service life and carrying capacity of the bearing shell;Wear-resistant bearing shell is widely used in various mechanical equipment, which is of great significance to improve the reliability and stability of equipment;The existing wear-resistant bearing shell does not have self-lubricating ability, which will cause wear to itself when the bearing lubricating oil dries up, affecting the service life of the bearing shell. SUMMARY

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a wear-resistant bearing shell, which effectively solves the problem that the existing wear-resistant bearing shell does not have self-lubricating ability, which will cause wear to itself when the bearing lubricating oil dries up.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: a wear-resistant bearing shell, comprising an outer shell, an inner shell is arranged in the inner part of the outer shell, an oil injection nozzle is fixedly installed on the circumferential surface of the outer shell, a plurality of rollers are movably installed between the outer shell and the inner shell, a positioning ring is rotatably installed between the two ends of the plurality of rollers, an oil storage cavity is formed in the upper part of the inner part of the outer shell, a pushing block is arranged on the upper side of the inner part of the outer shell, an oil absorbing cotton is fixedly installed on the bottom of the pushing block, a moving column is fixedly installed on the top of the pushing block, two oil inlet grooves are formed in the upper part of the inner part of the moving column, an oil passing groove is formed in the middle part of the inner part of the moving column, three oil distribution grooves are formed in the inner part of the pushing block, the oil passing groove, the two oil inlet grooves and the three oil distribution grooves are communicated, a sealing groove is formed in the inner bottom of the oil storage cavity, a sealing pad is fixedly installed on the inner bottom of the sealing groove, a sealing disc is fixedly installed on the surface of the moving column, the sealing disc is installed on the upper part of the inner part of the sealing groove, the sealing disc is tightly attached to the sealing pad, an elastic return assembly is arranged on the top of the moving column, and the elastic return assembly is pushed to shrink when the moving column moves.

[0005] Preferably, the elastic reset assembly comprises a mounting head fixedly installed at the top of the moving column, the surface of the moving column is annularly and equidistantly fixedly installed with four connecting rods, one end of each of the four connecting rods is fixedly installed with a sliding sleeve, the inside of each of the four sliding sleeves is inserted with a sliding rod, the bottom of each of the four sliding rods is fixedly connected with the inner bottom of the oil storage cavity, the surface of each of the four sliding rods is sleeved with a reset spring, and both ends of each of the four reset springs are fixedly connected with the sliding rod and the sliding sleeve.

[0006] Preferably, the top of the mounting head is fixedly installed with a pushing rod, the surface of the pushing rod is sleeved with a sleeve, the inside of the sleeve is provided with a telescopic spring, and both ends of the telescopic spring are fixedly connected with the inner wall of one end of the sleeve and one end of the pushing rod.

[0007] Preferably, the top of the sleeve is fixedly installed with a mounting block, the circumferential surface of the mounting block is fixedly installed with four supporting rods, and one end of each of the four supporting rods is fixedly connected with the inner wall of the oil storage cavity.

[0008] Compared with the prior art, the utility model has the advantages that in working, the inner shell body rotates and drives a plurality of rollers to rotate in the inside of the outer shell body, the setting of the two positioning rings guarantees the stability of the plurality of rollers when rotating, the rollers rotate and intermittently push the oil absorbing cotton and the pushing block, the pushing block is pushed and drives the moving column to move to the inside of the oil storage cavity, the moving column moves to the inside of the oil storage cavity and drives the pushing rod to move to the inside of the sleeve through the mounting head and simultaneously extrudes the telescopic spring, so that the moving column has the effect of elastic reset.

[0009] The mounting head also drives the four sliding sleeves to slide along the surface of the four sliding rods through the four connecting rods and simultaneously extrudes the four reset springs when moving, so that the effect of elastic reset of the moving column is improved, the moving column moves to the inside of the oil storage cavity and drives the sealing disc to move away from the sealing pad and to the outside of the sealing groove, simultaneously drives the oil inlet groove to move up, the lubricating oil in the inside of the oil storage cavity flows down through the oil inlet groove, the oil passing groove and the three oil distribution grooves and is absorbed by the oil absorbing cotton when the oil inlet groove moves up, so that the rollers can realize self-lubrication when contacting the oil absorbing cotton, the bearing shell body has the self-lubricating capacity, avoids the abrasion of the bearing when the lubricating oil of the bearing dries up, and improves the service life of the bearing shell body. BRIEF DESCRIPTION OF DRAWINGS

[0010] The accompanying drawings are used to provide a further understanding of the utility model, constitute part of the specification, are used to explain the utility model together with the embodiments of the utility model, and do not constitute the limitation on the utility model.

[0011] In the drawings:

[0012] Figure 1 It is a structure schematic view of the utility model bearing shell body of wear resistance type.

[0013] Figure 2 This is a schematic diagram of the internal structure of the wear-resistant bearing housing of this utility model. Figure 1 ;

[0014] Figure 3 This is a schematic diagram of the internal structure of the wear-resistant bearing housing of this utility model. Figure 2 ;

[0015] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0016] Figure 5 This utility model Figure 3 Enlarged structural diagram at point B;

[0017] In the diagram: 1. Outer shell; 2. Oil inlet nozzle; 3. Inner shell; 4. Roller; 5. Positioning ring; 6. Oil reservoir; 7. Oil-absorbing cotton; 8. Push block; 9. Moving column; 10. Sealing disc; 11. Sealing groove; 12. Sealing gasket; 13. Oil inlet groove; 14. Oil passage groove; 15. Oil distribution groove; 16. Push rod; 17. Sleeve; 18. Telescopic spring; 19. Mounting block; 20. Support rod; 21. Connecting rod; 22. Sliding sleeve; 23. Sliding rod; 24. Return spring; 25. Mounting head. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of 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.

[0019] Depend on Figures 1 to 5 As shown, this utility model includes an outer shell 1, an inner shell 3 inside the outer shell 1, an oil injection nozzle 2 fixedly installed on the circumferential surface of the outer shell 1, a plurality of rollers 4 movably installed between the outer shell 1 and the inner shell 3, a positioning ring 5 rotatably installed between the two ends of the plurality of rollers 4, an oil storage cavity 6 opened in the upper part of the outer shell 1, a pushing block 8 provided on the upper side inside the outer shell 1, and an oil-absorbing cotton 7 fixedly installed at the bottom of the pushing block 8;

[0020] When the inner shell 3 rotates, it will drive several rollers 4 to rotate inside the outer shell 1. The setting of two positioning rings 5 ​​ensures the stability of the several rollers 4 when they rotate. The rotation of the rollers 4 will intermittently push the oil-absorbing cotton 7 and the pushing block 8.

[0021] The top of the pushing block 8 is fixedly provided with a moving column 9. Two oil inlet grooves 13 are formed in the upper part of the moving column 9. An oil passing groove 14 is formed in the middle part of the moving column 9. Three oil distribution grooves 15 are formed in the pushing block 8. The oil passing groove 14, the two oil inlet grooves 13 and the three oil distribution grooves 15 are communicated. A sealing groove 11 is formed in the inner bottom of the oil storage cavity 6. A sealing gasket 12 is fixedly arranged on the inner bottom of the sealing groove 11. A sealing disc 10 is fixedly arranged on the surface of the moving column 9 and arranged in the upper part of the sealing groove 11. The sealing disc 10 is tightly attached to the sealing gasket 12. The top of the moving column 9 is provided with an elastic reset assembly. When the moving column 9 moves, the elastic reset assembly is pushed to contract.

[0022] When the pushing block 8 is pushed, the moving column 9 is driven to move towards the inside of the oil storage cavity 6. When the moving column 9 moves towards the inside of the oil storage cavity 6, the elastic reset assembly is pushed, so that the moving column 9 has a good elastic reset effect.

[0023] When the moving column 9 moves towards the inside of the oil storage cavity 6, the sealing disc 10 is driven to move away from the sealing gasket 12 and to the outside of the sealing groove 11, and at the same time, the oil inlet grooves 13 are also driven to move upwards. When the oil inlet grooves 13 move upwards, the lubricating oil in the oil storage cavity 6 flows down through the oil inlet grooves 13, the oil passing groove 14 and the three oil distribution grooves 15 and is absorbed by the oil absorption cotton 7, so that when the roller 4 contacts the oil absorption cotton 7, self-lubrication can be realized. The self-lubricating ability of the bearing shell is achieved, which avoids the abrasion of the bearing caused by the dryness of the bearing lubricating oil, thereby improving the service life of the bearing shell.

[0024] The elastic reset assembly comprises a mounting head 25 fixedly arranged on the top of the moving column 9. Four connecting rods 21 are fixedly arranged on the surface of the moving column 9 in a ring shape at equal distances. One end of each of the four connecting rods 21 is fixedly provided with a sliding sleeve 22. The inside of each of the four sliding sleeves 22 is inserted with a sliding rod 23. The bottom of each of the four sliding rods 23 is fixedly connected with the inner bottom of the oil storage cavity 6. The surface of each of the four sliding rods 23 is sleeved with a reset spring 24. Both ends of each of the four reset springs 24 are fixedly connected with the sliding rod 23 and the sliding sleeve 22, respectively.

[0025] When the mounting head 25 moves, the four sliding sleeves 22 are driven to slide along the surface of the four sliding rods 23 through the four connecting rods 21, and at the same time, the four reset springs 24 are extruded, thereby improving the elastic reset effect of the moving column 9.

[0026] The top of the mounting head 25 is fixedly mounted with the pushing rod 16, the surface of the pushing rod 16 is sleeved with the sleeve pipe 17, the inside of the sleeve pipe 17 is provided with the telescopic spring 18, both ends of the telescopic spring 18 are fixedly connected with the inner wall of one end of the sleeve pipe 17 and one end of the pushing rod 16 respectively; the top of the sleeve pipe 17 is fixedly mounted with the mounting block 19, the circumferential surface of the mounting block 19 is fixedly mounted with four supporting rods 20, one end of the four supporting rods 20 is fixedly connected with the inner wall of the oil storage cavity 6;

[0027] When the mounting head 25 moves, the pushing rod 16 will move to the inside of the sleeve pipe 17, and at the same time, the telescopic spring 18 is extruded, so that the moving column 9 has the elastic reset effect.

Claims

1. A wear-resistant bearing housing, comprising an outer shell (1), characterized in that: The outer shell (1) has an inner shell (3) inside. An oil injection nozzle (2) is fixedly installed on the circumferential surface of the outer shell (1). Several rollers (4) are movably installed between the outer shell (1) and the inner shell (3). A positioning ring (5) is rotatably installed between the two ends of each roller (4). An oil storage cavity (6) is opened in the upper part of the outer shell (1). A pushing block (8) is provided on the upper side of the inner shell (1). An oil-absorbing cotton (7) is fixedly installed at the bottom of the pushing block (8). A moving column (9) is fixedly installed on the top of the pushing block (8). Two oil inlet grooves (13) are opened in the upper part of the moving column (9). An oil passage (14) is provided in the middle. Three oil distribution grooves (15) are provided inside the pushing block (8). The oil passage (14), two oil inlet grooves (13) and three oil distribution grooves (15) are connected. A sealing groove (11) is provided at the bottom of the oil storage chamber (6). A sealing gasket (12) is fixedly installed at the bottom of the sealing groove (11). A sealing plate (10) is fixedly installed on the surface of the moving column (9). The sealing plate (10) is installed in the upper part inside the sealing groove (11). The sealing plate (10) is close to the sealing gasket (12). An elastic reset component is provided at the top of the moving column (9). When the moving column (9) moves, it will push the elastic reset component to retract.

2. The wear-resistant bearing housing according to claim 1, characterized in that: The elastic reset assembly includes a mounting head (25), which is fixedly mounted on the top of the moving column (9). Four connecting rods (21) are fixedly mounted on the surface of the moving column (9) at equal intervals in a ring. A sliding sleeve (22) is fixedly mounted on one end of each of the four connecting rods (21). A sliding rod (23) is inserted into the interior of each of the four sliding sleeves (22). The bottom of each of the four sliding rods (23) is fixedly connected to the bottom of the oil storage chamber (6). A reset spring (24) is sleeved on the surface of each of the four sliding rods (23). The two ends of each of the four reset springs (24) are fixedly connected to the sliding rod (23) and the sliding sleeve (22), respectively.

3. The wear-resistant bearing housing according to claim 2, characterized in that: A push rod (16) is fixedly installed on the top of the mounting head (25). A sleeve (17) is fitted on the surface of the push rod (16). A telescopic spring (18) is provided inside the sleeve (17). The two ends of the telescopic spring (18) are fixedly connected to the inner wall of one end of the sleeve (17) and one end of the push rod (16), respectively.

4. A wear-resistant bearing housing according to claim 3, characterized in that: An installation block (19) is fixedly installed on the top of the sleeve (17), and four support rods (20) are fixedly installed on the circumferential surface of the installation block (19). One end of each of the four support rods (20) is fixedly connected to the inner wall of the oil storage cavity (6).

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