Waist-drum-shaped chain roller with high-speed bearing capacity

Abstract

The utility model relates to the technical field of mechanical transmission, and discloses a waist-drum-shaped chain roller with high-speed bearing capacity, which comprises a roller body, an anti-friction component is arranged on the outer wall of the roller body, the anti-friction component comprises a wear-resistant steel sleeve, the wear-resistant steel sleeve is arranged on the outer wall of the roller body, and the wear-resistant steel sleeve is arranged on the outer wall of the roller body. An inner connecting ring is fixedly connected to the outer wall of the roller body, a rotating sleeve is arranged on the outer wall of the roller body, an outer connecting ring is fixedly connected to the outer wall of the rotating sleeve, a plurality of balls are arranged between the outer connecting ring and the inner connecting ring, and oil absorption cotton is arranged between the rotating sleeve and the roller body. During operation, the rotating sleeve outside the roller body and the inner and outer connecting rings form a rolling structure through the balls, the oil absorption cotton continuously releases oil to reduce friction, the wear-resistant steel sleeve is used for protection, and the oil injection port guarantees lubrication, so that the purposes of improving the transmission efficiency, prolonging the service life and reducing the maintenance cost are achieved, and the stable operation of the roller under high-speed bearing is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission technology, and in particular to a drum-shaped chain roller with high-speed load-bearing capacity. Background Technology

[0002] In the field of modern industrial transmission, drum-shaped chain rollers with high-speed load-bearing capacity are widely used in key transmission systems such as automotive engines, aerospace equipment, and high-speed industrial machinery. These rollers, with their unique drum-shaped structure, can distribute contact stress more evenly under high-speed operation, meeting the transmission requirements of high precision and high load, and are core components ensuring the efficient operation of mechanical equipment.

[0003] In existing technologies, traditional drum-shaped chain rollers typically employ a mechanical structure where a cylindrical roller body directly meshes with the sprocket. They rely on surface heat treatment to improve wear resistance and are lubricated by periodically applying lubricating oil. Their technical principle is primarily based on the sliding friction between the roller and the sprocket teeth, utilizing the lubricating oil to form an oil film on the contact surface, reducing direct metal-to-metal contact and lowering friction and wear.

[0004] However, under actual high-speed operating conditions, the sliding friction of traditional chain rollers generates significant rotational resistance, leading to reduced transmission efficiency. Simultaneously, the large amount of heat generated by high-speed friction accelerates the evaporation and deterioration of lubricating oil, reducing its lubrication effect, accelerating roller wear, shortening the lifespan of the chain rollers, increasing equipment maintenance costs and downtime for repairs, and making it difficult to meet the demands of modern industry for high-speed, high-efficiency, and long-life transmission systems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a drum-shaped chain roller with high-speed load-bearing capacity, aiming to improve the problem of high friction and rapid wear of chain rollers when they operate at high speeds.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drum-shaped chain roller with high-speed load-bearing capacity, comprising a roller body, wherein an anti-friction component is provided on the outer wall of the roller body;

[0007] The anti-friction component includes a wear-resistant steel sleeve disposed on the outer wall of the roller body. An inner connecting ring is fixedly connected to the outer wall of the roller body. A rotating sleeve is disposed on the outer wall of the roller body. An outer connecting ring is fixedly connected to the outer wall of the rotating sleeve. A plurality of balls are disposed between the outer connecting ring and the inner connecting ring. Oil-absorbing cotton is disposed between the rotating sleeve and the roller body. A disassembly component is disposed on the inner wall of the wear-resistant steel sleeve. A sealing gasket is disposed on the upper surface of the roller body. An oil injection port is opened on the outer wall of the sealing gasket.

[0008] Furthermore, the disassembly assembly includes a limiting block, the outer wall of which is disposed on the inner wall of the wear-resistant steel sleeve, a spring is fixedly connected to the inner wall of the wear-resistant steel sleeve, a movable platform is fixedly connected to one end of the spring, an elastic sheet is disposed on the lower side inside the roller body, and a sealing gasket is attached to the surface of the elastic sheet.

[0009] Furthermore, the inner wall of the wear-resistant steel sleeve is threadedly connected to the outer wall of the rotating sleeve.

[0010] Furthermore, the inner wall of the limiting block is fixedly connected to the outer wall of the moving platform, and the moving platform is used to drive the limiting block to move.

[0011] Furthermore, the outer wall of the limiting block is slidably connected to the inner wall of the rotating sleeve, and the limiting block is used to limit the rotation of the sleeve.

[0012] Furthermore, a plurality of the ball bearings are arranged in a circular array between the outer connecting ring and the inner connecting ring.

[0013] Furthermore, the outer wall of the roller body is disposed on the inner wall of the oil-absorbing cotton, which is used to absorb lubricating oil.

[0014] Furthermore, the outer wall of the moving platform is slidably connected to the inner wall of the wear-resistant steel sleeve, and the moving platform is used to compress the spring.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, during operation, the rotating sleeve outside the roller body forms a rolling structure with the inner and outer connecting rings through the balls. The oil-absorbing cotton continuously releases oil to reduce friction, the wear-resistant steel sleeve provides protection, and the oil injection port ensures lubrication. This achieves the purpose of improving transmission efficiency, extending service life, reducing maintenance costs, and ensuring stable operation of the roller under high-speed load.

[0017] 2. In this utility model, during disassembly and assembly, the wear-resistant steel sleeve is screwed on to compress the limiting block and spring to complete the fixation. Disassembly is performed in the reverse direction. The elastic sheet and the sealing gasket cooperate to prevent lubricating oil leakage, which achieves the effects of reducing maintenance difficulty, shortening maintenance time, and improving maintenance efficiency, ensuring that the roller maintenance is convenient and efficient. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the drum-shaped chain roller with high-speed load-bearing capacity proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the ball bearing portion of the drum-shaped chain roller with high-speed load-bearing capacity proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the outer connecting ring of the drum-shaped chain roller with high-speed load-bearing capacity proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of a portion of the sealing gasket of the waist-drum shaped chain roller with high-speed load-bearing capacity proposed in this utility model.

[0022] Figure 5 for Figure 2 Enlarged diagram of point A in the middle.

[0023] Legend:

[0024] 1. Roller body; 2. Wear-resistant steel sleeve; 3. Sealing gasket one; 4. Oil inlet; 5. Sealing gasket two; 6. Rotating sleeve; 7. Oil-absorbing cotton; 8. Ball bearing; 9. Outer connecting ring; 10. Inner connecting ring; 11. Elastic sheet; 12. Spring; 13. Moving table; 14. Limit block. Detailed Implementation

[0025] 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.

[0026] Reference Figures 1-4 An embodiment of this utility model is provided: a drum-shaped chain roller with high-speed load-bearing capacity, including a roller body 1, and an anti-friction component is provided on the outer wall of the roller body 1;

[0027] The anti-friction component includes a wear-resistant steel sleeve 2, which is installed on the outside of the rotating sleeve 6. It is made of high-strength wear-resistant material and directly bears the impact and friction during sprocket meshing. The wear-resistant steel sleeve 2 is set on the outer wall of the roller body 1. An inner connecting ring 10 is fixedly connected to the outer wall of the roller body 1. The rotating sleeve 6 is set on the outer wall of the roller body 1. An outer connecting ring 9 is fixedly connected to the outer wall of the rotating sleeve 6. Several balls 8 are set between the outer connecting ring 9 and the inner connecting ring 10, arranged in a ring array. Rolling friction replaces sliding friction, greatly reducing the resistance between the rotating sleeve 6 and the roller body 1 and improving the transmission efficiency. Oil-absorbing cotton 7 is set between the rotating sleeve 6 and the roller body 1, filling the space between the rotating sleeve 6 and the roller body 1. It pre-absorbs lubricating oil and continuously releases lubricating oil through compression during the rotation of the roller. The inner wall of the wear-resistant steel sleeve 2 is equipped with a disassembly component. A sealing gasket 3 is set on the upper surface of the roller body 1. An oil injection port 4 is opened on the outer wall of the sealing gasket 3.

[0028] Specifically, in use, the rotating sleeve 6 outside the roller body 1 forms a rolling connection structure with the inner connecting ring 10 and the outer connecting ring 9 through the balls 8, transforming traditional sliding friction into rolling friction, effectively reducing rotational resistance. The oil-absorbing cotton 7 between the rotating sleeve 6 and the roller body 1 absorbs lubricating oil and continuously releases lubrication when the chain rollers are running, further reducing friction. The wear-resistant steel sleeve 2 is installed on the outside of the rotating sleeve 6 to provide protection, and the sealing gasket 3, in conjunction with the oil filling port 4, facilitates the replenishment of lubricating oil and ensures the operation of the lubrication system.

[0029] Reference Figures 1-5 The disassembly assembly includes a limiting block 14, whose outer wall is slidably connected to the inner wall of the rotating sleeve 6. During installation, the wear-resistant steel sleeve 2 is compressed, causing the moving platform 13 to compress the spring 12. After the spring 12 resets, it engages inside the rotating sleeve 6, restricting the axial movement of the wear-resistant steel sleeve 2 and achieving stable installation. The outer wall of the limiting block 14 is set on the inner wall of the wear-resistant steel sleeve 2. A spring 12 is fixedly connected to the inner wall of the wear-resistant steel sleeve 2, and one end of the spring 12 is fixedly connected to the moving platform 13. An elastic plate 11 is provided on the lower side inside the roller body 1, and a sealing gasket 2 5 is attached to the surface of the elastic plate 11. The wear-resistant steel sleeve 2... The inner wall is threaded to the outer wall of the rotating sleeve 6. The inner wall of the limiting block 14 is fixedly connected to the outer wall of the moving platform 13. The moving platform 13 is used to drive the limiting block 14 to move. The outer wall of the limiting block 14 is slidably connected to the inner wall of the rotating sleeve 6. The limiting block 14 is used to limit the rotation of the rotating sleeve 6. Several balls 8 are arranged in a ring array between the outer connecting ring 9 and the inner connecting ring 10. The outer wall of the roller body 1 is set on the inner wall of the oil-absorbing cotton 7. The oil-absorbing cotton 7 is used to absorb lubricating oil. The outer wall of the moving platform 13 is slidably connected to the inner wall of the wear-resistant steel sleeve 2. The moving platform 13 is used to compress the spring 12.

[0030] Specifically, when the rotating sleeve 6 is screwed on, the limiting block 14 is compressed, causing the moving platform 13 to compress the spring 12. The spring 12 then returns to its original position, pushing the limiting block 14 into the rotating sleeve 6 for fixation. To disassemble, the operation is reversed to separate the wear-resistant steel sleeve 2. The elastic sheet 11 cooperates with the sealing gasket 5 to prevent lubricating oil leakage.

[0031] Working principle: When a high-speed, load-bearing drum-shaped chain roller is required, the rotating sleeve 6 outside the roller body 1 forms a rolling connection structure with the inner connecting ring 10 and the outer connecting ring 9 through the balls 8, converting sliding friction into rolling friction and reducing rotational resistance. Simultaneously, the oil-absorbing cotton 7 between the rotating sleeve 6 and the roller body 1 absorbs lubricating oil and continuously releases lubrication during rotation, further reducing friction. The wear-resistant steel sleeve 2 is installed outside the rotating sleeve 6 for protection. The sealing gasket 3, in conjunction with the oil inlet 4, facilitates the injection of lubricating oil, maintaining the normal operation of the lubrication system.

[0032] In addition, when it is necessary to disassemble the wear-resistant steel sleeve 2, during installation, the wear-resistant steel sleeve 2 is screwed onto the rotating sleeve 6. At this time, the limiting block 14 is squeezed, the limiting block 14 squeezes the moving table 13, the moving table 13 squeezes the spring 12, and then the spring 12 pushes the moving table 13 and the limiting block 14 to reset. The limiting block 14 is locked into the rotating sleeve 6 to achieve fixation. The elastic sheet 11 cooperates with the sealing gasket 2 5 to prevent lubricating oil leakage, ensure the lubrication effect and normal operation of the roller. Disassembly can be performed by reversing the operation.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drum-shaped chain roller with high-speed load-bearing capacity, comprising a roller body (1), characterized in that: The outer wall of the roller body (1) is provided with an anti-friction component; The anti-friction component includes a wear-resistant steel sleeve (2), which is disposed on the outer wall of the roller body (1). An inner connecting ring (10) is fixedly connected to the outer wall of the roller body (1). A rotating sleeve (6) is disposed on the outer wall of the roller body (1). An outer connecting ring (9) is fixedly connected to the outer wall of the rotating sleeve (6). A plurality of balls (8) are disposed between the outer connecting ring (9) and the inner connecting ring (10). An oil-absorbing cotton (7) is disposed between the rotating sleeve (6) and the roller body (1). A disassembly component is disposed on the inner wall of the wear-resistant steel sleeve (2). A sealing gasket (3) is disposed on the upper surface of the roller body (1). An oil filling port (4) is opened on the outer wall of the sealing gasket (3).

2. The drum-shaped chain roller with high-speed load-bearing capacity according to claim 1, characterized in that: The disassembly assembly includes a limiting block (14), the outer wall of which is set on the inner wall of the wear-resistant steel sleeve (2), a spring (12) is fixedly connected to the inner wall of the wear-resistant steel sleeve (2), a moving platform (13) is fixedly connected to one end of the spring (12), an elastic sheet (11) is provided on the lower side inside the roller body (1), and a sealing gasket (5) is attached to the surface of the elastic sheet (11).

3. The drum-shaped chain roller with high-speed load-bearing capacity according to claim 2, characterized in that: The inner wall of the wear-resistant steel sleeve (2) is threaded to the outer wall of the rotating sleeve (6).

4. The drum-shaped chain roller with high-speed load-bearing capacity according to claim 2, characterized in that: The inner wall of the limiting block (14) is fixedly connected to the outer wall of the moving platform (13), and the moving platform (13) is used to drive the limiting block (14) to move.

5. The drum-shaped chain roller with high-speed load-bearing capacity according to claim 2, characterized in that: The outer wall of the limiting block (14) is slidably connected to the inner wall of the rotating sleeve (6), and the limiting block (14) is used to limit the rotating sleeve (6).

6. The drum-shaped chain roller with high-speed load-bearing capacity according to claim 1, characterized in that: Several of the ball bearings (8) are arranged in a ring array between the outer connecting ring (9) and the inner connecting ring (10).

7. The drum-shaped chain roller with high-speed load-bearing capacity according to claim 1, characterized in that: The outer wall of the roller body (1) is arranged on the inner wall of the oil-absorbing cotton (7), which is used to absorb lubricating oil.

8. The drum-shaped chain roller with high-speed load-bearing capacity according to claim 2, characterized in that: The outer wall of the movable stage (13) is slidably connected to the inner wall of the wear-resistant steel sleeve (2), and the movable stage (13) is used to compress the spring (12).

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