Double-row roller bearing
By introducing lubrication devices and protective devices into double-row roller bearings, the wear problem caused by friction between the rollers and the inner and outer rings is solved, the long life and efficient lubrication of the bearings are achieved, and lubricating oil leakage and debris entry are avoided.
Patent Information
- Application Number
- CN202421883875.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-08-06
AI Technical Summary
When using double-row roller bearings, the friction between the rollers and the inner and outer rings of the bearings causes wear, which affects the service life of the bearings.
A double-row roller bearing with a lubrication device is designed. By setting placement grooves, threaded rods and through holes on the outer ring, the lubricating oil melts and lubricates the rollers, inner rings and outer rings when friction generates heat. The lubricating oil can be easily added through the threaded rods and auxiliary grooves, and a protective device is combined to prevent debris from entering.
The wear between the rollers and the inner and outer rings is reduced, the service life of the bearing is extended, and the leakage of lubricating oil and the entry of debris are prevented through sealing and protective measures.
Smart Images
Figure CN223344477U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearings, in particular to a double-row roller bearing. Background Art
[0002] Bearings are components that fix, rotate and reduce the load friction coefficient during mechanical transmission. They can reduce the friction coefficient during the transmission of motion between components that move relative to each other on the shaft and keep the center of the shaft fixed.
[0003] When using double-row roller bearings, the rollers will constantly rub against the inner and outer rings of the bearings, causing the rollers and the inner and outer rings of the bearings to continuously wear, and then the bearings will be damaged, which will lead to problems affecting the service life of the bearings. Utility Model Content
[0004] The utility model proposes a double-row roller bearing to solve the problem that when using a double-row roller bearing, the rollers and the inner ring and outer ring of the bearing will continuously rub against each other, thereby causing the rollers and the inner ring and outer ring of the bearing to continuously wear, and then causing damage to the bearing, thereby shortening the service life of the bearing.
[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a double-row roller bearing, comprising an outer ring, an inner ring is provided on the inner side of the outer ring, two rows of rollers are provided between the inner ring and the outer ring, a lubrication device is provided on one side of the outer ring, the lubrication device comprises a placement groove opened on the outer ring, a threaded groove is opened on the inner wall of the placement groove on the surface of the outer ring, a threaded rod is threadedly inserted into the inner part of the placement groove on the surface of the outer ring, a through hole is opened at the bottom of the placement groove on the surface of the outer ring, and solid lubricating oil is placed inside the placement groove on the surface of the outer ring.
[0006] The effect achieved by the above components is: when the bearing is in use, the rollers between the inner ring and the outer ring will continuously rub against the inner ring and the outer ring, and then when the outer ring rubs and generates heat, the lubricating oil in the placement groove on the surface of the outer ring will be heated and melted, and then pass through the through hole at the bottom of the placement groove on the outer ring surface to reach the rollers between the outer ring and the inner ring for lubrication, and then reduce the wear of the outer ring, inner ring and rollers. After the lubricating oil is used up, remove the threaded rod of the placement groove on one side of the outer ring, and then put the lubricating oil into the placement groove, and then use the threaded rod to seal one end of the placement groove to complete the addition of lubricating oil. By using the lubrication device, lubricating oil can be added between the inner ring and outer ring of the bearing when the bearing is in use, so that the wear of the rollers and the inner ring and outer ring is reduced, thereby improving the service life of the bearing.
[0007] Preferably, an auxiliary groove is formed on a side of the threaded rod away from the through hole, and the size of the auxiliary groove is adapted to the size of the threaded rod.
[0008] The effect achieved by the above components is that by using the auxiliary groove on the threaded rod, the operator can use tools to quickly rotate the threaded rod.
[0009] Preferably, an oblique groove is provided at the bottom of the placement groove on one side of the outer ring, and the oblique groove inside the placement groove on the surface of the outer ring is close to the through hole.
[0010] The effect achieved by the above components is: by using the inclined groove to guide the lubricating oil in the outer ring placement groove, the melted lubricating oil can more easily pass through the through hole to reach the rollers between the outer ring and the inner ring.
[0011] Preferably, a breaking block is fixedly connected to one side of the threaded rod close to the through hole, and the cross section of the breaking block is T-shaped.
[0012] The effect achieved by the above components is that by breaking up the blocks, the solid lubricant in the placement groove can be broken up when the threaded rod seals the outer ring, so that the solid lubricant can be melted more easily by heat.
[0013] Preferably, a rubber ring is fixedly connected to one side of the threaded rod, and the size of the rubber ring is adapted to the size of the threaded rod.
[0014] The effect achieved by the above components is: by using the rubber ring, the sealing between the threaded rod and the outer ring is improved to prevent the lubricating oil from leaking out from the thread groove.
[0015] Preferably, protective devices are provided on both sides of the outer ring, and the protective devices include a card slot opened on the outer ring, a card block is clamped inside the card slot on the surface of the outer ring, one side of the card block is fixedly connected to a protective plate, and a bolt is inserted into the internal thread of the card block, and one side of the bolt is threadedly connected to the outer ring.
[0016] The effect achieved by the above components is: when using the bearing, the protective plate can be moved to make the block fit into the slot of the outer ring, and then the bolt is turned to make the bolt pass through the block and fix it to the outer ring. Then the protective plate blocks and protects the gap between the outer ring and the inner ring. By using the protective device, debris can be prevented from reaching the roller and affecting the use of the bearing.
[0017] Preferably, a plurality of anti-sliding blocks are fixedly connected to one side of the bolt, and the plurality of anti-sliding blocks are arranged at equal distances on one side of the bolt.
[0018] The effect achieved by the above components is: by using the anti-sliding block, the friction between the bolt and the operator is increased, making the bolt easier to turn.
[0019] Preferably, one side of the bolt abuts against a gasket, and one side of the gasket abuts against a blocking block.
[0020] The effect achieved by the above components is: by using the gasket, the contact area between the bolt and the block is increased, so that the bolt can fix the block more firmly.
[0021] In summary, the beneficial effects of the present invention are as follows:
[0022] By using a lubrication device, lubricating oil can be added between the inner ring and outer ring of the bearing when the bearing is in use, so that the wear of the rollers and the inner ring and outer ring is reduced, thereby increasing the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0024] Figure 2 This is a cross-sectional view of the outer ring of the utility model;
[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the threaded rod of the utility model;
[0026] Figure 4 For this utility model Figure 1 Enlarged view of point A.
[0027] Legend: 1. Outer ring; 2. Lubrication device; 21. Placement groove; 22. Threaded groove; 23. Threaded rod; 24. Through hole; 25. Auxiliary groove; 26. Inclined groove; 27. Breaking block; 28. Rubber ring; 3. Protective device; 31. Slot; 32. Block; 33. Protective plate; 34. Bolt; 35. Anti-sliding block; 36. Gasket; 4. Inner ring; 5. Roller. DETAILED DESCRIPTION
[0028] Reference Figure 1-4 As shown, this embodiment discloses a double-row roller bearing, including an outer ring 1, an inner ring 4 is provided on the inner side of the outer ring 1, two rows of rollers 5 are provided between the inner ring 4 and the outer ring 1, and a lubrication device 2 is provided on one side of the outer ring 1.
[0029] Reference Figure 1-4As shown, this embodiment discloses a lubricating device 2 including a placement groove 21 provided on the outer ring 1, a threaded groove 22 provided on the inner wall of the placement groove 21 on the surface of the outer ring 1, a threaded rod 23 inserted into the inner thread of the placement groove 21 on the surface of the outer ring 1, a through hole 24 provided at the bottom of the placement groove 21 on the surface of the outer ring 1, and solid lubricating oil placed inside the placement groove 21 on the surface of the outer ring 1. When the bearing is in use, the roller 5 between the inner ring 4 and the outer ring 1 will continuously rub against the inner ring 4 and the outer ring 1. Then, when the outer ring 1 is heated by friction, the lubricating oil in the placement groove 21 on the surface of the outer ring 1 will be heated and melted, and then pass through the through hole 24 at the bottom of the placement groove 21 on the surface of the outer ring 1 to reach the roller 5 between the outer ring 1 and the inner ring 4 for lubrication. Then, the wear of the outer ring 1, the inner ring 4 and the roller 5 is reduced. After the lubricating oil is used up, remove the threaded rod 23 of the placement groove 21 on one side of the outer ring 1, and then put the lubricating oil into the placement groove 21, and then use the threaded rod 23 to seal one end of the placement groove 21 to complete the addition of the lubricating oil. By using the lubricating device 2, lubricating oil can be added between the inner ring 4 and the outer ring 1 of the bearing when the bearing is in use, so that the wear of the roller 5 and the inner ring 4 and the outer ring 1 is reduced, thereby improving the service life of the bearing.
[0030] Reference Figure 1-4 As shown, this embodiment discloses an auxiliary groove 25 on the side of the threaded rod 23 away from the through-hole 24. The dimensions of the auxiliary groove 25 match those of the threaded rod 23. The auxiliary groove 25 on the threaded rod 23 allows an operator to quickly rotate the threaded rod 23 using a tool. An inclined groove 26 is formed at the bottom of the placement groove 21 on one side of the outer ring 1. The inclined groove 26 is located inside the placement groove 21 on the surface of the outer ring 1 near the through-hole 24. The inclined groove 26 guides the lubricating oil in the placement groove 21 of the outer ring 1, allowing the melted lubricating oil to more easily pass through the through-hole 24 and reach the roller 5 between the outer ring 1 and the inner ring 4. A disintegrating block 27 is fixedly attached to the side of the threaded rod 23 near the through-hole 24. The disintegrating block 27 has a T-shaped cross-section. The disintegrating block 27 can disperse the solid lubricating oil inside the placement groove 21 while the threaded rod 23 is sealing the outer ring 1, making it easier for the solid lubricating oil to melt under heat. A rubber ring 28 is fixedly connected to one side of the threaded rod 23, and the size of the rubber ring 28 is adapted to the size of the threaded rod 23. By using the rubber ring 28, the sealing performance between the threaded rod 23 and the outer ring 1 is improved to prevent lubricating oil from leaking out from the thread groove 22.
[0031] Reference Figure 1-4As shown, this embodiment discloses that protective devices 3 are provided on both sides of the outer ring 1. The protective devices 3 include a groove 31 formed in the outer ring 1. A block 32 is clamped inside the groove 31 on the surface of the outer ring 1. A protective plate 33 is fixedly connected to one side of the block 32. A bolt 34 is inserted into the internal thread of the block 32. One side of the bolt 34 is threadedly connected to the outer ring 1. When using the bearing, the protective plate 33 can be moved to allow the block 32 to fit into the groove 31 of the outer ring 1. The bolt 34 is then rotated to pass through the block 32 and fixed to the outer ring 1. The protective plate 33 then blocks and protects the gap between the outer ring 1 and the inner ring 4. By using the protective device 3, debris is prevented from reaching the roller 5 and affecting the use of the bearing.
[0032] Reference Figure 1-4 As shown, this embodiment discloses a plurality of anti-slip blocks 35 fixedly connected to one side of a bolt 34. These anti-slip blocks 35 are equidistantly arranged on one side of the bolt 34. The use of anti-slip blocks 35 increases the friction between the bolt 34 and the operator, making it easier to rotate the bolt 34. A washer 36 abuts one side of the bolt 34, and one side of the washer 36 abuts the clamping block 32. The use of the washer 36 increases the contact area between the bolt 34 and the clamping block 32, allowing the bolt 34 to more securely secure the clamping block 32.
[0033] Working principle: When the bearing is in use, the roller 5 between the inner ring 4 and the outer ring 1 will continuously rub against the inner ring 4 and the outer ring 1. Then, when the outer ring 1 is heated by friction, the lubricating oil in the placement groove 21 on the surface of the outer ring 1 will be heated and melted, and then pass through the through hole 24 at the bottom of the placement groove 21 on the surface of the outer ring 1 to reach the roller 5 between the outer ring 1 and the inner ring 4 for lubrication. Then, the wear of the outer ring 1, the inner ring 4 and the roller 5 is reduced. After the lubricating oil is used up, the threaded rod 23 of the placement groove 21 on one side of the outer ring 1 is removed through the tool and the auxiliary groove 25, and then the lubricating oil is put into the placement groove 21, and then the threaded rod 23 is used to seal one end of the placement groove 21 to complete the addition of the lubricating oil. By using the lubricating device 2, lubricating oil can be added between the inner ring 4 and the outer ring 1 of the bearing when the bearing is in use, so that the wear of the roller 5 and the inner ring 4 and the outer ring 1 is reduced, thereby improving the service life of the bearing.
[0034] When using the bearing, the protective plate 33 can be moved so that the block 32 is inserted into the slot 31 of the outer ring 1, and then the bolt 34 is rotated so that the bolt 34 passes through the block 32 and is fixed to the outer ring 1. Then the protective plate 33 blocks and protects the gap between the outer ring 1 and the inner ring 4. By using the protective device 3, debris can be prevented from reaching the roller 5 and affecting the use of the bearing.
Claims
1. A double-row roller bearing, comprising an outer ring (1), characterized in that: An inner ring (4) is provided on the inner side of the outer ring (1), two rows of rollers (5) are provided between the inner ring (4) and the outer ring (1), a lubricating device (2) is provided on one side of the outer ring (1), the lubricating device (2) comprises a placement groove (21) provided on the outer ring (1), a threaded groove (22) is provided on the inner wall of the placement groove (21) on the surface of the outer ring (1), a threaded rod (23) is inserted into the inner thread of the placement groove (21) on the surface of the outer ring (1), a through hole (24) is provided at the bottom of the placement groove (21) on the surface of the outer ring (1), and solid lubricating oil is placed inside the placement groove (21) on the surface of the outer ring (1).
2. A double-row roller bearing according to claim 1, characterized in that: An auxiliary groove (25) is provided on one side of the threaded rod (23) away from the through hole (24), and the size of the auxiliary groove (25) is adapted to the size of the threaded rod (23).
3. The double-row roller bearing according to claim 2, characterized in that: An oblique groove (26) is provided at the bottom of the placement groove (21) on one side of the outer ring (1), and the oblique groove (26) inside the placement groove (21) on the surface of the outer ring (1) is close to the through hole (24).
4. The double-row roller bearing according to claim 3, characterized in that: A breaking block (27) is fixedly connected to one side of the threaded rod (23) close to the through hole (24), and the cross section of the breaking block (27) is T-shaped.
5. The double-row roller bearing according to claim 4, characterized in that: A rubber ring (28) is fixedly connected to one side of the threaded rod (23), and the size of the rubber ring (28) is adapted to the size of the threaded rod (23).
6. The double-row roller bearing according to claim 5, characterized in that: Protective devices (3) are provided on both sides of the outer ring (1), and the protective devices (3) include a clamping groove (31) provided on the outer ring (1), a clamping block (32) is clamped inside the clamping groove (31) on the surface of the outer ring (1), one side of the clamping block (32) is fixedly connected to a protective plate (33), and a bolt (34) is inserted into the internal thread of the clamping block (32), and one side of the bolt (34) is threadedly connected to the outer ring (1).
7. The double-row roller bearing according to claim 6, characterized in that: One side of the bolt (34) is fixedly connected to a plurality of anti-sliding blocks (35), and the plurality of anti-sliding blocks (35) are arranged at equal distances on one side of the bolt (34).
8. The double-row roller bearing according to claim 7, characterized in that: One side of the bolt (34) abuts against a gasket (36), and one side of the gasket (36) abuts against a clamping block (32).