Novel low-noise cylindrical roller bearing

Abstract

The utility model discloses a novel low-noise cylindrical roller bearing, which relates to the technical field of bearings, and comprises an outer ring and an inner ring, a pin roller is connected between the outer ring and the inner ring in a rolling manner, both sides of the outer ring are connected with cover plates, one sides of the two cover plates are respectively connected with both sides of the inner ring in a sliding manner, one side of each cover plate is provided with a first rolling groove, and the other side of each cover plate is provided with a second rolling groove. Second rolling grooves are formed in the two sides of the inner ring, balls are connected between the first rolling grooves and the second rolling grooves in a rolling mode, a noise reduction plate is connected to one side of the cover plate, and a reinforcing mechanism is arranged on the outer side of the outer ring. The roller bearing has the advantages that noise generated during rolling of the rollers is isolated through cooperation of the two cover plates, the noise reduction effect is improved through cooperation of the cover plates and the noise reduction plates, noise generated during relative sliding of the cover plates and the inner ring is reduced through cooperation of the first rolling grooves, the second rolling grooves and the balls, and therefore the noise reduction effect is improved.

Description

Technical Field

[0001] The utility model relates to a cylindrical roller bearing, in particular to a new type of low-noise cylindrical roller bearing, belonging to the technical field of bearings. Background Art

[0002] Bearings are an important component in contemporary mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. According to the different friction properties of the moving elements, bearings can be divided into two categories: rolling bearings and sliding bearings. Rolling bearings generally consist of four parts: an outer ring, an inner ring, rolling elements, and a cage. According to the shape of the rolling elements, rolling bearings are divided into two categories: ball bearings and roller bearings. During the rolling process of the rolling elements, noise is easily generated, affecting surrounding work.

[0003] Among them, the "low-noise cylindrical roller bearing" disclosed in the application number "CN202020301057.6" is also an increasingly mature technology, including an outer ring and an inner ring, a retaining frame is arranged between the outer ring and the inner ring, a plurality of pockets are opened on the retaining frame, rolling bodies are arranged inside the pockets, and oil filling chambers are opened on the retaining frame between adjacent pockets, an oil filling port connected to the oil filling chamber is opened on the top of the retaining frame, and a plurality of oil outlet holes are opened on the two side walls of the oil filling chamber, and the oil outlet holes are connected to the pocket holes. The beneficial effects of the utility model are as follows: the utility model has high strength and strong load-bearing capacity, can evenly lubricate the surface of the rolling element, greatly improves the lubrication effect, can store the lubricating oil for a short time, thereby effectively avoiding oil loss, so that the rolling element can always be effectively lubricated, and when friction occurs between the rolling element and the pocket hole, it is not easy to cause noise and heat, thereby avoiding damage to the retaining frame, and greatly extending the service life of the cylindrical roller bearing. After further retrieval, the "a cylindrical roller bearing" disclosed in the application number "CN202320422049.0" includes a bearing body, the bearing body includes an outer ring and an inner ring, a limiting groove is opened on the inner wall of the inner ring, a sealing plate is rotatably installed between the outer ring and the inner ring, an opening is opened on the sealing plate, a bolt is installed inside the opening, and a nut is rotatably installed on the other end of the bolt, and limiting rings are welded on the inner walls of the inner ring and the outer ring, and a cylinder and a hollow cylinder are respectively installed between the limiting rings, and the hollow cylinder cooperates with the bolt. This cylindrical roller bearing, when in use, uses a needle tube and a needle to inject lubricating oil into the interior of a fixed tube, enters the interior of a fixed hole through a discharge hole on the fixed tube, and then flows from the fixed hole into between the cylinders for lubrication.

[0004] However, the above method still has the following defects in actual use: when isolating the noise, the cover plate and the inner ring slide relative to each other, which is also easy to generate noise, and the noise reduction effect is poor. Therefore, the utility model provides a new type of low-noise cylindrical roller bearing. Utility Model Content

[0005] The utility model aims to provide a novel low-noise cylindrical roller bearing to solve the problem in the above background technology that the relative sliding between the cover plate and the inner ring also easily generates noise and the noise reduction effect is poor.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new low-noise cylindrical roller bearing, comprising an outer ring and an inner ring, rollers are rollingly connected between the outer ring and the inner ring, cover plates are connected to both sides of the outer ring, one side of the two cover plates are respectively slidably connected to the two sides of the inner ring, a first rolling groove is opened on one side of the cover plate, and a second rolling groove is opened on both sides of the inner ring, balls are rollingly connected between the first rolling groove and the second rolling groove, a noise reduction plate is connected to one side of the cover plate, and a reinforcement mechanism is provided on the outside of the outer ring.

[0007] As a preferred technical solution of the utility model, a retaining frame is provided between the outer ring and the inner ring, a through groove is opened on one side of the retaining frame, and the roller is rollingly connected inside the through groove.

[0008] As a preferred technical solution of the utility model, the cover plate is connected to one side of the outer ring by bolts, and a circular hole is opened on the other side of the cover plate, and the bolt is located inside the circular hole.

[0009] As a preferred technical solution of the utility model, a circular ring is connected to one side of the cover plate, and connecting grooves are provided on both sides of the outer ring, and the circular ring is snap-connected with the connecting grooves.

[0010] As a preferred technical solution of the utility model, oil filling grooves are provided on both sides of the inner ring, a first oil leakage hole is provided on one side of the oil filling groove, the first oil leakage hole is connected to one side of the second rolling groove, and a second oil leakage hole is provided on the outer side of the inner ring, the second oil leakage hole is connected to the other side of the second rolling groove.

[0011] As a preferred technical solution of the utility model, a reinforcing plate is provided in the middle of the noise reduction plate, both sides of the reinforcing plate are connected to sound-absorbing cotton layers, and one side of the sound-absorbing cotton layer is connected to a sound insulation sealing layer.

[0012] As a preferred technical solution of the present utility model, the reinforcing mechanism includes a reinforcement ring, the reinforcement ring is arranged on the outside of the outer ring, and the outside of the reinforcement ring is connected to a heat insulation protective layer.

[0013] As a preferred technical solution of the utility model, the outer side of the thermal insulation protective layer is connected to an anti-aging layer, the outer side of the anti-aging layer is connected to a polyurethane waterproof layer, and the outer side of the polyurethane waterproof layer is provided with a wear-resistant layer.

[0014] Compared with the related art, the low-noise new cylindrical roller bearing provided by the utility model has the following beneficial effects:

[0015] The cooperation of the two cover plates can isolate the noise generated when the rollers roll, and the cooperation of the cover plate and the noise reduction plate can improve the noise reduction effect. The cooperation of the first rolling groove, the second rolling groove and the ball can reduce the noise generated when the cover plate and the inner ring slide relative to each other, thereby improving the noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the inner ring of the utility model;

[0019] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0020] Figure 5 For this utility model Figure 2 Schematic diagram of the enlarged structure at B.

[0021] In the figure: 1. outer ring; 2. inner ring; 3. cover plate; 4. reinforcement mechanism; 5. roller; 6. noise reduction plate; 7. first rolling groove; 8. second rolling groove; 9. ball; 10. retaining frame; 11. through groove; 12. round hole; 13. circular ring; 14. connecting groove; 15. oil filling groove; 16. first oil leakage hole; 17. second oil leakage hole; 18. reinforcement plate; 19. sound-absorbing cotton layer; 20. sound insulation sealing layer; 401. reinforcement ring; 402. heat insulation protective layer; 403. polyurethane waterproof layer; 404. anti-aging layer; 405. wear-resistant layer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1:

[0024] See also Figure 1-5The utility model provides a new type of low-noise cylindrical roller bearing, including an outer ring 1 and an inner ring 2, a roller 5 is rollingly connected between the outer ring 1 and the inner ring 2, a plurality of rollers 5 are arranged, and are equidistantly arranged between the outer ring 1 and the inner ring 2, both sides of the outer ring 1 are fixedly connected with cover plates 3, one side of the two cover plates 3 is respectively slidably connected with the two sides of the inner ring 2, the cover plates 3 isolate the noise of the rollers 5 when rolling, and reduce the noise, a first rolling groove 7 is opened on one side of the cover plate 3, and a second rolling groove 8 is opened on both sides of the inner ring 2, a ball 9 is rollingly connected between the first rolling groove 7 and the second rolling groove 8, a plurality of ball 9 are arranged, and are equidistantly arranged between the first rolling groove 7 and the second rolling groove 8, a noise reduction plate 6 is fixedly connected to one side of the cover plate 3, and the noise reduction performance is further improved by the noise reduction plate 6, and a reinforcement mechanism 4 is provided on the outer side of the outer ring 1;

[0025] A cage 10 is provided between the outer ring 1 and the inner ring 2. A through slot 11 is provided on one side of the cage 10. There are a plurality of through slots 11, which correspond to the rollers 5 one by one. The rollers 5 are rollingly connected inside the through slots 11, which can improve the rolling stability of the plurality of rollers 5.

[0026] The cover plate 3 is fixedly connected to one side of the outer ring 1 by bolts. A plurality of bolts are provided and are equidistantly arranged on the other side of the cover plate 3. A circular hole 12 is opened on the other side of the cover plate 3. A plurality of circular holes 12 are provided and are equidistantly arranged on the other side of the cover plate 3. The bolts are located inside the circular holes 12. The circular holes 12 can prevent the bolts from protruding, thereby ensuring the flatness of the bearing surface.

[0027] A circular ring 13 is fixedly connected to one side of the cover plate 3, and connecting grooves 14 are provided on both sides of the outer ring 1. The circular ring 13 is engaged with the connecting groove 14, and the connection position of the cover plate 3 is limited by the cooperation between the circular ring 13 and the connecting groove 14.

[0028] An oil filling groove 15 is provided on both sides of the inner ring 2, and a first oil leakage hole 16 is provided on one side of the oil filling groove 15. A plurality of first oil leakage holes 16 are provided, which are equidistantly arranged on one side of the oil filling groove 15. The first oil leakage hole 16 is communicated with one side of the second rolling groove 8, so that the lubricating oil can enter between the balls 9 from the oil filling groove 15 and the first oil leakage hole 16, lubricate the rolling of the balls 9 and reduce noise. A second oil leakage hole 17 is provided on the outer side of the inner ring 2, and a plurality of second oil leakage holes 17 are provided, which are equidistantly arranged on the outer side of the inner ring 2. The second oil leakage hole 17 is communicated with the other side of the second rolling groove 8. The lubricating oil enters between the plurality of rollers 5 from the second oil leakage hole 17, lubricates the rolling of the rollers 5 and reduces noise.

[0029] A reinforcement plate 18 is fixedly provided in the middle of the noise reduction plate 6, and the reinforcement plate 18 reinforces and supports the noise reduction plate 6. Both sides of the reinforcement plate 18 are fixedly connected with sound-absorbing cotton layers 19, and the sound-absorbing cotton layers 19 can absorb the noise of the roller 5. A sound insulation sealing layer 20 is fixedly connected to one side of the sound absorption cotton layer 19, and the sound insulation sealing layer 20 can isolate the noise of the roller 5 to a certain extent.

[0030] Specifically, the inner ring 2 rotates to make the roller 5 roll, and the two cover plates 3 cover the roller 5. The sound-absorbing cotton layer 19 can absorb the noise of the roller 5, and the sound-insulating sealing layer 20 can isolate the noise of the roller 5 to a certain extent, thereby reducing the noise when the roller 5 rolls. At the same time, the inner ring 2 and the cover plate 3 slide relative to each other, so that the ball 9 rolls, reducing the noise during relative sliding, thereby further improving the noise reduction of the bearing.

[0031] Embodiment 2:

[0032] The reinforcement mechanism 4 includes a reinforcement ring 401, which is fixedly arranged on the outer side of the outer ring 1. The reinforcement ring 401 can improve the compressive strength of the outer ring 1. A heat-insulating protective layer 402 is fixedly connected to the outer side of the reinforcement ring 401. The bearing generates heat when working, and the heat-insulating protective layer 402 improves the heat resistance of the bearing.

[0033] An anti-aging layer 404 is fixedly connected to the outer side of the heat-insulating protective layer 402, and the anti-aging layer 404 improves the service life of the bearing. A polyurethane waterproof layer 403 is fixedly connected to the outer side of the anti-aging layer 404, and the polyurethane waterproof layer 403 is provided to prevent the bearing from being corroded by moisture. A wear-resistant layer 405 is fixedly provided on the outer side of the polyurethane waterproof layer 403, and the wear-resistant layer 405 can improve the wear resistance of the outer ring 1 and the outside world, thereby further improving the service life of the bearing;

[0034] Specifically, the reinforcement ring 401 can improve the compressive strength of the outer ring 1, the heat-insulating protective layer 402 can improve the heat resistance of the bearing, the polyurethane waterproof layer 403 can prevent the bearing from being corroded by moisture, and the wear-resistant layer 405 can improve the wear resistance of the outer ring 1 and the outside world. The wear-resistant layer 405 and the aging-resistant layer 404 can increase the service life of the bearing.

[0035] When in use, the reinforcement ring 401 can improve the compressive strength of the outer ring 1, the heat insulation protective layer 402 improves the heat resistance of the bearing, the polyurethane waterproof layer 403 prevents the bearing from being corroded by moisture, and the wear-resistant layer 405 can improve the wear resistance of the outer ring 1 and the outside world. The wear-resistant layer 405 and the anti-aging layer 404 can increase the service life of the bearing;

[0036] The inner ring 2 rotates to make the roller 5 roll, and the two cover plates 3 cover the roller 5. The sound-absorbing cotton layer 19 can absorb the noise of the roller 5, and the sound-proof sealing layer 20 can isolate the noise of the roller 5 to a certain extent, thereby reducing the noise when the roller 5 rolls. At the same time, the inner ring 2 and the cover plate 3 slide relative to each other, so that the ball 9 rolls, reducing the noise during relative sliding, thereby further improving the noise reduction of the bearing. After the bearing has been used for a long time, lubricating oil is injected into the oil filling groove 15, so that the lubricating oil enters between the multiple balls 9 from the first oil leakage hole 16 to lubricate the balls 9, and the lubricating oil continues to be injected, so that the lubricating oil enters between the multiple rollers 5 from the second oil leakage hole 17 to lubricate the roller 5, which can further reduce the bearing noise.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of low-noise cylindrical roller bearing, comprising an outer ring (1) and an inner ring (2), characterized in that: A roller (5) is rollingly connected between the outer ring (1) and the inner ring (2); a cover plate (3) is connected to both sides of the outer ring (1); one side of the two cover plates (3) is slidingly connected to both sides of the inner ring (2); a first rolling groove (7) is provided on one side of the cover plate (3); a second rolling groove (8) is provided on both sides of the inner ring (2); a ball (9) is rollingly connected between the first rolling groove (7) and the second rolling groove (8); a noise reduction plate (6) is connected to one side of the cover plate (3); and a reinforcement mechanism (4) is provided on the outer side of the outer ring (1).

2. A new type of low-noise cylindrical roller bearing according to claim 1, characterized in that: A retaining frame (10) is provided between the outer ring (1) and the inner ring (2), a through groove (11) is provided on one side of the retaining frame (10), and the roller (5) is rollingly connected inside the through groove (11).

3. A new type of low-noise cylindrical roller bearing according to claim 1, characterized in that: The cover plate (3) is connected to one side of the outer ring (1) via bolts, and a circular hole (12) is provided on the other side of the cover plate (3), and the bolt is located inside the circular hole (12).

4. A new type of low-noise cylindrical roller bearing according to claim 1, characterized in that: A circular ring (13) is connected to one side of the cover plate (3), and connecting grooves (14) are provided on both sides of the outer ring (1), and the circular ring (13) is snap-fitted and connected to the connecting grooves (14).

5. A new type of low-noise cylindrical roller bearing according to claim 1, characterized in that: The inner ring (2) is provided with oil injection grooves (15) on both sides, a first oil leakage hole (16) is provided on one side of the oil injection groove (15), the first oil leakage hole (16) is connected to one side of the second rolling groove (8), and a second oil leakage hole (17) is provided on the outer side of the inner ring (2), the second oil leakage hole (17) is connected to the other side of the second rolling groove (8).

6. A new type of low-noise cylindrical roller bearing according to claim 1, characterized in that: A reinforcing plate (18) is provided in the middle of the noise reduction plate (6), both sides of the reinforcing plate (18) are connected to sound-absorbing cotton layers (19), and one side of the sound-absorbing cotton layer (19) is connected to a sound insulation sealing layer (20).

7. A new type of low-noise cylindrical roller bearing according to claim 1, characterized in that: The reinforcing mechanism (4) comprises a reinforcing ring (401), wherein the reinforcing ring (401) is arranged on the outside of the outer ring (1), and a heat-insulating protective layer (402) is connected to the outside of the reinforcing ring (401).

8. A new type of low-noise cylindrical roller bearing according to claim 7, characterized in that: The outer side of the heat-insulating protective layer (402) is connected to an anti-aging layer (404), the outer side of the anti-aging layer (404) is connected to a polyurethane waterproof layer (403), and the outer side of the polyurethane waterproof layer (403) is provided with a wear-resistant layer (405).

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