A tapered roller bearing with a retaining ring structure

Abstract

The utility model discloses a kind of conical roller bearings with retainer ring structure, it is related to bearing technical field, including retainer and retainer ring protection mechanism, the outer surface of the retainer is fixedly connected with retainer ring protection mechanism, and retainer ring protection mechanism includes the outside wear layer fixedly connected in the retainer outside position, the inside wear layer is fixedly connected with in the retainer, and the top of retainer is fixedly connected with magnetic attraction ring, the both sides of magnetic attraction ring are fixedly connected with sealing retainer ring, outside wear layer is tungsten carbide coating, fixed with the outside of retainer by plasma spraying process, inside wear layer is silicon nitride ceramic sheet.This conical roller bearing with retainer ring structure, compared with the existing ordinary conical roller bearing, form bearing all-around protection and working condition adaptation unit, increase impurity adsorption and dustproof sealing function, reduce maintenance cost, reduce oil leakage impurity invasion, and increase multi-environment adaptability, adapt electrostatic sensitive scene, guarantee bearing stable and efficient operation.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, specifically to a tapered roller bearing with a retaining ring structure. Background Technology

[0002] Bearings are core transmission components in the mechanical field. Essentially, they are support structures that reduce mechanical resistance by replacing sliding friction with rolling friction. Their main functions are to fix the position of the shaft, guide its rotational movement, and transfer the load (radial and axial loads) to the frame or equipment housing. They are widely used in automobiles, machine tools, motors, and construction machinery, and are key components ensuring efficient and stable operation of machinery. Tapered roller bearings are an important category of bearings, named for their tapered rolling elements and tapered raceways on both the inner and outer rings. The assembly consisting of the inner ring and rolling elements can be separated from the outer ring, facilitating installation, disassembly, and maintenance.

[0003] For example, a tapered roller bearing with a retaining ring structure, as described in application number CN202420271995.4, includes a bearing ring and two sealing retaining rings. The front and rear sidewalls of the bearing ring are stepped, and fixing holes are formed along its circumference. The outer sides of the two sealing retaining rings are engaged with the front and rear sides of the bearing ring. A locking device is provided between the sealing retaining rings and the bearing ring. The locking device includes a connecting hole, a spring fixedly connected to the bottom of the inner cavity of the connecting hole, and a locking pin fixedly connected to the upper end of the spring. The locking pin engages with the fixing hole. The advantages of this invention compared to existing technologies are: it can include sealing retaining rings and facilitates the disassembly and assembly of the sealing retaining rings. However, this tapered roller bearing is prone to failure due to oil swelling, oil leakage, and impurity intrusion, resulting in high maintenance costs. Furthermore, the bearing lubrication is easily broken, operating resistance is high, high-frequency operation generates static electricity that attracts impurities, and it is difficult to adapt to sensitive environments.

[0004] Therefore, in view of this, we studied and improved the existing structure to address its shortcomings, and proposed a tapered roller bearing with a retaining ring structure. Utility Model Content

[0005] The purpose of this invention is to provide a tapered roller bearing with a retaining ring structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tapered roller bearing with a retaining ring structure, comprising a cage and a retaining ring protection mechanism, wherein the retaining ring protection mechanism is fixedly connected to the outer surface of the cage, and the retaining ring protection mechanism includes an outer wear-resistant layer fixedly connected to the outer side of the cage, an inner wear-resistant layer fixedly connected to the inner side of the cage, and a magnetic ring fixedly connected to the top of the cage, wherein sealing retaining rings are fixedly connected to both sides of the magnetic ring.

[0007] Preferably, the cage is rotatably connected to a roller body, and a reinforcing mechanism is fixedly connected to the inner surface of the cage.

[0008] Preferably, the reinforcing mechanism includes an oil storage microcavity fixedly connected to the inside of the retainer, and a resin matrix is ​​embedded in the inner surface of the retainer. High-strength fiber filaments are fixedly connected to the inner wall of the resin matrix, and an anti-corrosion layer is fixedly connected to the outer surface of the retainer.

[0009] Preferably, the inner side of the roller body is connected to an inner ring, and the inner surface of the inner ring is embedded with reinforcing ribs.

[0010] Preferably, a carbon fiber layer is fixedly connected to the inner wall of the inner ring, and a carbon composite film is fixedly connected to one side of the carbon fiber layer.

[0011] Preferably, an outer ring is rolledly connected to the outer side of the roller body, and a reinforcing layer is fixedly connected to the outer surface of the outer ring.

[0012] Preferably, the outer surface of the reinforcing layer is fixedly connected with a heat dissipation coating, and the outer surface of the outer ring is fixedly connected with an oil injection nozzle.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the setting of the retaining ring protection mechanism, forms a core unit for all-round protection and working condition adaptation of the bearing. Based on the basic wear resistance, impurity adsorption, and dustproof sealing functions, it relies on the material characteristics and process design of tungsten carbide coating, silicon nitride ceramic sheet, neodymium iron boron strong magnet, fluororubber and other materials to further achieve multiple values ​​such as enhanced working condition adaptability, guaranteed bearing operation accuracy, and reduced maintenance costs. It provides key support for the stable operation of the bearing in complex environments. The oil resistance of fluororubber (which can withstand the corrosion of mineral oil and synthetic lubricating oil) can prevent the retaining ring from being swollen by lubricating oil, ensuring the long-term stability of the sealing structure, reducing lubricating oil leakage and external impurity intrusion caused by seal failure, and reducing bearing lubrication and maintenance costs.

[0015] 2. By enhancing the mechanism, this utility model, based on the fundamental functions of preventing grease backflow, precise lubrication, strengthening the cage, and linking internal and external protection, further achieves multiple benefits such as continuous lubrication, reduced operating resistance, and improved adaptability to various environments, relying on the material characteristics and structural design of the components. It provides key support for the long-term stable and efficient operation of bearings. The insulating properties of epoxy resin can prevent the bearing from generating static electricity during high-frequency operation, prevent static electricity from adsorbing metal impurities, and adapt to static-sensitive applications such as electronic equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the retaining ring protection mechanism 2 of this utility model;

[0018] Figure 3 This is a schematic diagram of the reinforcing mechanism 4 of this utility model;

[0019] Figure 4 This is a schematic diagram of the outer surface structure of the outer ring 9 of this utility model.

[0020] In the diagram: 1. Cage; 2. Retaining ring protection mechanism; 201. Outer wear-resistant layer; 202. Inner wear-resistant layer; 203. Magnetic ring; 204. Sealing retaining ring; 3. Roller body; 4. Reinforcing mechanism; 401. Oil storage microcavity; 402. Resin matrix; 403. High-strength fiber filament; 404. Anti-corrosion layer; 5. Inner ring; 6. Reinforcing rib; 7. Carbon fiber layer; 8. Carbon composite film; 9. Outer ring; 10. Reinforcing layer; 11. Heat dissipation coating; 12. Oil injection nozzle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-2 As shown, a tapered roller bearing with a retaining ring structure includes a cage 1 and a retaining ring protection mechanism 2. The retaining ring protection mechanism 2 is fixedly connected to the outer surface of the cage 1, and the retaining ring protection mechanism 2 includes an outer wear-resistant layer 201 fixedly connected to the outer side of the cage 1, an inner wear-resistant layer 202 fixedly connected to the inner side of the cage 1, and a magnetic ring 203 fixedly connected to the top of the cage 1. Sealing retaining rings 204 are fixedly connected to both sides of the magnetic ring 203. The outer wear-resistant layer 201 is a tungsten carbide coating, which is fixed to the outer side of the cage 1 by plasma spraying. The inner wear-resistant layer 202 is a silicon nitride ceramic sheet, which is bonded by high-temperature adhesive to improve the wear resistance of the inner and outer sides of the cage 1. The magnetic ring 203 is a neodymium iron boron strong magnetic material to attract metal impurities. The sealing retaining rings 204 are made of fluororubber to cover the gaps and prevent impurities and dust from entering the bearing.

[0023] like Figure 3As shown, a roller body 3 is rotatably connected inside the cage 1, and a reinforcing mechanism 4 is fixedly connected to the inner surface of the cage 1. The reinforcing mechanism 4 includes an oil storage microcavity 401 fixedly connected to the inside of the cage 1, and a resin matrix 402 is embedded in the inner surface of the cage 1. High-strength fiber filaments 403 are fixedly connected to the inner wall of the resin matrix 402, and an anti-corrosion layer 404 is fixedly connected to the outer surface of the cage 1. The oil storage microcavity 401 is sealed to the oil injection nozzle 12 by welding through a capillary tube. The oil injection nozzle 12 is equipped with a one-way valve to prevent... The oil reservoir microcavity 401 is designed to prevent grease backflow and contamination. The bottom of the oil reservoir microcavity 401 has a small oil outlet hole that is aligned with the rolling trajectory of the roller body 3, ensuring that the grease accurately covers the contact points. The resin matrix 402 is made of epoxy resin, and the high-strength fiber filament 403 is made of carbon fiber. It is embedded in the cage 1 in a grid pattern, which improves the tensile strength and deformation resistance of the cage 1 matrix. The anti-corrosion layer 404 is a polytetrafluoroethylene coating that covers the outer surface and edge gaps of the cage 1, forming an internal and external protective linkage with the resin matrix 402, thereby improving the overall corrosion resistance.

[0024] Furthermore, an inner ring 5 is rolledly connected to the inner side of the roller body 3, and a reinforcing rib 6 is embedded in the inner surface of the inner ring 5. A carbon fiber layer 7 is fixedly connected to the inner wall of the inner ring 5, and a carbon composite film 8 is fixedly connected to one side of the carbon fiber layer 7. The radius of curvature of the raceway of the inner ring 5 is adapted to the outer radius of the roller body 3. The reinforcing rib 6 is made of steel and is embedded in the inner ring 5 in a radial pattern, extending to the upper and lower end faces of the inner ring 5 at both ends, thereby improving the radial load resistance of the inner ring 5. The carbon fiber layer 7 and the carbon composite film 8 form a double layer of protection, which improves the wear resistance of the inner wall of the inner ring 5 and enhances the stability of the inner ring 5 in relation to the shaft.

[0025] Furthermore, an outer ring 9 is rolledly connected to the outer side of the roller body 3, and a reinforcing layer 10 is fixedly connected to the outer surface of the outer ring 9. A heat dissipation coating 11 is fixedly connected to the outer surface of the reinforcing layer 10, and an oil injection nozzle 12 is fixedly connected to the outer surface of the outer ring 9. The radius of curvature of the raceway of the outer ring 9 is adapted to the outer radius of the roller body 3 to ensure rolling contact stability and reduce operating noise. The reinforcing layer 10 is made of high manganese steel, which improves the impact resistance of the outer ring 9. The heat dissipation coating 11 is a ceramic-based heat dissipation coating 11, which is tightly attached to the reinforcing layer 10 to accelerate the heat dissipation of the outer ring 9. The oil injection nozzle 12 has a built-in filter screen, which can accurately inject oil into the raceway and form a lubrication linkage with the roller body 3 to extend the service life of the bearing.

[0026] Working principle: When using this tapered roller bearing with a retaining ring structure, first, start the equipment. The inner ring 5 rotates with the shaft, causing the roller body 3 to roll between the raceways of the inner ring 5 and the outer ring 9. The cage 1 guides the roller body 3 to be evenly distributed and prevents collisions. During operation, the oil storage micro-cavity 401 continuously supplies oil lubrication to the roller body 3, and the grease nipple 12 can replenish grease. The outer wear-resistant layer 201 and the inner wear-resistant layer 202 of the retaining ring protection mechanism 2 reduce the wear of the cage 1. The magnetic ring 203 adsorbs metal impurities, and the sealing retaining ring 204 prevents dust from entering. Then, the reinforcing layer 10 improves the impact resistance of the outer ring 9, the heat dissipation coating 11 accelerates heat dissipation, the reinforcing rib 6, the carbon fiber layer 7 and the carbon composite film 8 ensure the stable operation of the inner ring 5, the high-strength fiber filament 403 and the resin matrix 402 of the reinforcing mechanism 4 enhance the deformation resistance of the cage 1, and the anti-corrosion layer 404 protects the cage 1 from corrosion. Finally, the bearing is stopped for maintenance and cleaning. This is the working principle of the tapered roller bearing with a retaining ring structure.

Claims

1. A tapered roller bearing with a retaining ring structure, comprising a cage (1) and a retaining ring protection mechanism (2), characterized in that, The outer surface of the retainer (1) is fixedly connected to a retaining ring protection mechanism (2), and the retaining ring protection mechanism (2) includes an outer wear-resistant layer (201) fixedly connected to the outer side of the retainer (1), an inner wear-resistant layer (202) fixedly connected to the inner side of the retainer (1), and a magnetic ring (203) fixedly connected to the top of the retainer (1), and sealing retaining rings (204) fixedly connected to both sides of the magnetic ring (203).

2. A tapered roller bearing with a retaining ring structure according to claim 1, characterized in that, The cage (1) is rotatably connected to the roller body (3), and the inner surface of the cage (1) is fixedly connected to the reinforcing mechanism (4).

3. A tapered roller bearing with a retaining ring structure according to claim 2, characterized in that, The reinforcing mechanism (4) includes an oil storage microcavity (401) fixedly connected to the inside of the retainer (1), and a resin matrix (402) is embedded in the inner surface of the retainer (1). A high-strength fiber filament (403) is fixedly connected to the inner wall of the resin matrix (402), and an anti-corrosion layer (404) is fixedly connected to the outer surface of the retainer (1).

4. A tapered roller bearing with a retaining ring structure according to claim 2, characterized in that, The inner side of the roller body (3) is connected to an inner ring (5), and a reinforcing rib (6) is embedded in the inner surface of the inner ring (5).

5. A tapered roller bearing with a retaining ring structure according to claim 4, characterized in that, The inner wall of the inner ring (5) is fixedly connected with a carbon fiber layer (7), and a carbon composite film (8) is fixedly connected to one side of the carbon fiber layer (7).

6. A tapered roller bearing with a retaining ring structure according to claim 4, characterized in that, The outer ring (9) is rolledly connected to the outer side of the roller body (3), and a reinforcing layer (10) is fixedly connected to the outer surface of the outer ring (9).

7. A tapered roller bearing with a retaining ring structure according to claim 6, characterized in that, The outer surface of the reinforcing layer (10) is fixedly connected with a heat dissipation coating (11), and the outer surface of the outer ring (9) is fixedly connected with an oil injection nozzle (12).

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