Composite sealing roller bearing

Abstract

The utility model discloses a combined type sealing roller bearing, and relates to the field of bearings, the combined type sealing roller bearing comprises a bearing sleeve, a sealing mechanism is mounted on the inner wall of the bearing sleeve, the sealing mechanism comprises a sealing seat of an annular structure, two symmetrically-arranged mounting cavities are formed in the sealing seat, and openings are formed in the inner walls of one sides of the two mounting cavities; limiting blocks are slidably connected to the inner walls of the two openings, adjusting assemblies for adjusting the limiting blocks are arranged on the inner walls of the two mounting cavities, and a protective cover is fixedly connected to the outer wall of one side of the sealing seat. The sealing mechanism is arranged on the bearing sleeve, the protective cover on the sealing seat in the sealing mechanism is matched with the sealing ring, the sealing performance of the bearing is improved, the two limiting blocks are arranged on the sealing seat, and the limiting blocks are matched with the limiting grooves in the bearing sleeve, so that the sealing seat is conveniently fixed to the bearing sleeve, and the sealing performance of the bearing is improved. The problem that an existing bearing is relatively poor in sealing performance is solved.

Description

Technical Field

[0001] This application relates to the field of bearings, and more particularly to composite sealed roller bearings. Background Technology

[0002] Bearings are essential components in modern machinery. Their main function is to support rotating parts of the machine, reduce the coefficient of friction during movement, and ensure rotational accuracy. Rolling bearings generally consist of four parts: an outer ring, an inner ring, rolling elements, and a cage. Strictly speaking, they are composed of six main components: an outer ring, an inner ring, rolling elements, a cage, seals, and lubricating oil. Simply put, any bearing containing an outer ring, an inner ring, and rolling elements can be defined as a rolling bearing. Based on the shape of the rolling elements, rolling bearings are divided into two main categories: ball bearings and roller bearings.

[0003] Existing bearings often have poor sealing properties during actual use. Inadequate sealing can lead to lubricant leakage inside the bearing, while external dust can enter the bearing, causing increased wear and ultimately reducing its service life. Utility Model Content

[0004] To address the problem of reduced service life caused by poor sealing in existing bearings, this application provides a composite sealed roller bearing.

[0005] The composite sealed roller bearing provided in this application adopts the following technical solution:

[0006] A composite sealed roller bearing includes a bearing sleeve. A sealing mechanism is installed on the inner wall of the bearing sleeve. The sealing mechanism includes a ring-shaped sealing seat with two symmetrically arranged mounting cavities inside. An opening is provided on one side of the inner wall of each of the two mounting cavities, and a limit block is slidably connected to the inner wall of each opening. An adjusting component for adjusting the limit block is provided on the inner wall of each of the two mounting cavities. A protective cover is fixedly connected to one side of the outer wall of the sealing seat. A sealing ring is adhered to the outer wall of the sealing seat near the protective cover, and the sealing ring is located outside the protective cover.

[0007] By adopting the above technical solution, the bearing sleeve facilitates the protection of the rollers inside the bearing, and the sealing mechanism facilitates the sealing of the bearing sleeve, thereby protecting the roller structure inside the bearing sleeve and improving the service life of the bearing. The adjustment component inside the sealing seat of the sealing mechanism facilitates the adjustment of the position of the limit block, thereby facilitating the quick assembly and disassembly of the sealing seat.

[0008] Preferably, the adjustment assembly includes a screw rotatably connected to the inner wall of the mounting cavity, and a trapezoidal block is screwed to the outer wall of the screw, the trapezoidal block being slidably connected to the inner wall of the mounting cavity.

[0009] By adopting the above technical solution, the screw can be easily rotated and installed by opening the mounting cavity, and the screw can directly drive the trapezoidal block to slide in the mounting cavity when it rotates.

[0010] Preferably, the inner wall of the mounting cavity is fixedly connected to two symmetrically arranged mounting rods, and the limiting block is slidably connected to the outer wall of the two mounting rods.

[0011] By adopting the above technical solution, the installation cavity facilitates the installation of the mounting rod, and the mounting rod facilitates the sliding installation of the limiting block while restricting the sliding trajectory of the limiting block.

[0012] Preferably, a wedge plate is fixedly connected to one side of the outer wall of the limiting block, and a sliding groove is provided on one side of the outer wall of the trapezoidal block, with one end of the wedge plate slidably connected to the inner wall of the sliding groove.

[0013] By adopting the above technical solution, the trapezoidal block is moved by the rotation of the screw, and when the trapezoidal block moves, it directly cooperates with the wedge plate to drive the limit block to slide.

[0014] Preferably, the outer wall of one side of the sealing seat has two symmetrically arranged circular grooves, and the bottom inner wall of each of the two circular grooves is rotatably connected to a rotating part, one end of the drive shaft of the rotating part being fixedly connected to a screw.

[0015] By adopting the above technical solution, the opening of the circular groove facilitates the rotational installation of the rotating part, and the setting of the rotating part facilitates the rotation of the screw.

[0016] Preferably, the inner wall of the bearing sleeve has two symmetrically arranged limiting grooves, and the specifications of the limiting grooves match the specifications of the limiting blocks. The inner wall of the bearing sleeve has two symmetrically arranged positioning grooves, and the outer wall of the sealing seat is fixedly connected to two symmetrically arranged positioning blocks, and the specifications of the positioning blocks match the specifications of the positioning grooves.

[0017] By adopting the above technical solution, the limiting block is inserted into the limiting groove, which facilitates the fixing of the sealing seat on the inner wall of the bearing sleeve. The cooperation between the positioning block and the positioning groove facilitates the installation and positioning of the sealing seat.

[0018] Preferably, the inner wall of the bearing sleeve is provided with an inner ring, and a retainer is fixedly connected to the outer wall of the inner ring. The outer wall of the retainer is provided with a plurality of rollers, and the rollers are in contact with the inner wall of the bearing sleeve.

[0019] By adopting the above technical solution, the inner ring facilitates the installation of the cage, and the roller shaft facilitates the rotation of the inner ring relative to the bearing sleeve.

[0020] Preferably, the outer wall of the bearing sleeve is provided with an oil injection hole, and the inner wall of the oil injection hole is fitted with a sealing plug.

[0021] By adopting the above technical solution, the oil injection hole facilitates the injection of lubricating oil into the bearing sleeve, and the sealing plug facilitates the sealing of the oil injection hole.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. This application improves the sealing performance of the bearing by setting a sealing mechanism on the bearing sleeve, and the cooperation between the protective cover on the sealing seat and the sealing ring in the sealing mechanism. In addition, two limiting blocks are set on the sealing seat, and the cooperation between the limiting blocks and the upper limit groove of the bearing sleeve makes it easy to fix the sealing seat on the bearing sleeve, thus solving the problem of relatively poor sealing performance of existing bearings.

[0024] 2. This application provides two adjustment components in the sealing seat. The adjustment components facilitate the adjustment of the position of the limiting block. When the limiting block is inserted into the limiting groove, it is convenient to fix the sealing seat on the inner wall of the bearing sleeve. The rotating part on the sealing seat facilitates the adjustment of the position of the limiting block in conjunction with the adjustment components. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the composite sealed roller bearing according to an embodiment of this application;

[0026] Figure 2 This is a schematic diagram illustrating the main bearing sleeve structure of the embodiments of this application;

[0027] Figure 3 This is a schematic diagram illustrating the main structure of the sealing mechanism in the embodiments of this application;

[0028] Figure 4 This is a schematic diagram illustrating the three-dimensional structure of the sealing mechanism, which is the main feature of the embodiments of this application.

[0029] Figure 5 This is a schematic diagram illustrating a partial cross-sectional view of the sealing seat, representing a key embodiment of this application.

[0030] Reference numerals: 1. Bearing sleeve; 2. Inner ring; 3. Cage; 4. Roller shaft; 5. Oil injection hole; 6. Sealing mechanism; 7. Positioning groove; 8. Limiting groove; 9. Sealing seat; 10. Circular groove; 11. Rotating part; 12. Limiting block; 13. Positioning block; 14. Sealing ring; 15. Protective cover; 16. Mounting cavity; 17. Screw; 18. Trapezoidal block; 19. Wedge plate; 20. Mounting rod. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0032] This application discloses a composite sealed roller bearing.

[0033] Reference Figure 1-3 A composite sealed roller bearing includes a bearing sleeve 1. The inner wall of the bearing sleeve 1 is provided with an inner ring 2, and a cage 3 is fixedly connected to the outer wall of the inner ring 2. Multiple rollers 4 are provided on the outer wall of the cage 3, and the rollers 4 are in contact with the inner wall of the bearing sleeve 1. The inner ring 2 facilitates the installation of the cage 3, and the rollers 4 facilitate the rotation of the inner ring 2 relative to the bearing sleeve 1. An oil injection hole 5 is provided on the outer wall of the bearing sleeve 1, and a sealing plug is engaged on the inner wall of the oil injection hole 5. The oil injection hole 5 facilitates the injection of lubricating oil into the bearing sleeve 1, and the sealing plug facilitates the sealing of the oil injection hole 5. A sealing mechanism 6 is installed on the inner wall of the bearing sleeve 1.

[0034] Reference Figure 3-4 The sealing mechanism 6 includes a sealing seat 9 with an annular structure. The sealing seat 9 has two symmetrically arranged mounting cavities 16 inside. Each mounting cavity 16 has an opening on one side of its inner wall. Each opening has a limit block 12 slidably connected to its inner wall. Each mounting cavity has an adjusting component for adjusting the limit block 12. A protective cover 15 is fixedly connected to one side of the outer wall of the sealing seat 9. A sealing ring 14 is bonded to the outer wall of the sealing seat 9 near the protective cover 15. The sealing ring 14 is located outside the protective cover 15.

[0035] In use, the bearing sleeve 1 facilitates the protection of the rollers inside the bearing, and the sealing mechanism 6 facilitates the sealing of the bearing sleeve 1, thereby protecting the roller structure inside the bearing sleeve 1 and improving the service life of the bearing. The adjustment component inside the sealing seat 9 in the sealing mechanism 6 facilitates the adjustment of the position of the limit block 12, thereby facilitating the quick assembly and disassembly of the sealing seat 9.

[0036] Reference Figure 1-3 The adjusting assembly includes a screw 17 rotatably connected to the inner wall of the mounting cavity 16, and a trapezoidal block 18 screwed to the outer wall of the screw 17. The trapezoidal block 18 is slidably connected to the inner wall of the mounting cavity 16. Two symmetrically arranged mounting rods 20 are fixedly connected to the inner wall of the mounting cavity 16. A limiting block 12 is slidably connected to the outer wall of the two mounting rods 20. A wedge plate 19 is fixedly connected to one side of the outer wall of the limiting block 12. A groove is formed on one side of the outer wall of the trapezoidal block 18. One end of the wedge plate 19 is slidably connected to the inner wall of the groove. The sealing seat 9... Two symmetrically arranged circular grooves 10 are provided on the outer side wall, and a rotating part 11 is rotatably connected to the bottom inner wall of each of the two circular grooves 10. One end of the drive shaft of the rotating part 11 is fixedly connected to the screw 17. Two symmetrically arranged limiting grooves 8 are provided on the inner wall of the bearing sleeve 1, and the specifications of the limiting grooves 8 match the specifications of the limiting block 12. Two symmetrically arranged positioning grooves 7 are provided on the inner wall of the bearing sleeve 1. Two symmetrically arranged positioning blocks 13 are fixedly connected to the outer wall of the sealing seat 9, and the specifications of the positioning blocks 13 match the specifications of the positioning grooves 7.

[0037] In use, the opening of the mounting cavity 16 facilitates the rotational installation of the screw 17. When the screw 17 rotates, it directly drives the trapezoidal block 18 to slide in the mounting cavity 16. The opening of the mounting cavity facilitates the installation of the mounting rod 20. The setting of the mounting rod 20 facilitates the sliding installation of the limiting block 12 and restricts the sliding trajectory of the limiting block 12. The rotation of the screw 17 drives the trapezoidal block 18 to move. When the trapezoidal block 18 moves, it directly cooperates with the wedge plate 19 to drive the limiting block 12 to slide. The opening of the circular groove 10 facilitates the rotational installation of the rotating part 11. The setting of the rotating part 11 facilitates the rotation of the screw 17. The limiting block 12 is inserted into the limiting groove 8, which facilitates the fixing of the sealing seat 9 on the inner wall of the bearing sleeve 1. The cooperation between the positioning block 13 and the positioning groove 7 facilitates the installation and positioning of the sealing seat 9.

[0038] The implementation principle of the composite sealed roller bearing in this application embodiment is as follows: During use, when assembling the bearing, the inner ring 2 and the cage 3 are first installed into the bearing sleeve 1, then the roller shaft 4 is installed on the cage 3, and finally the sealing mechanism 6 is installed on the bearing sleeve 1. During installation, the positioning block 13 on the sealing seat 9 is first inserted into the positioning groove 7 to assist the sealing seat 9 in positioning. When the positioning block 13 is fully inserted into the positioning groove 7, the sleeve wrench is connected to the rotating part 11. The wrench drives the rotating part 11 to rotate. When the rotating part 11 rotates, it directly drives the screw 17 to rotate. When the screw 17 rotates, it directly drives the trapezoidal block 18 to move. When the trapezoidal block 18 moves down, the wedge plate 19 drives the limiting block 12 to be inserted into the limiting groove 8, thereby facilitating the fixing of the sealing seat 9 onto the bearing sleeve 1. The cooperation between the sealing ring 14 and the protective cover 15 on the sealing seat 9 facilitates the sealing of the bearing sleeve 1.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A composite sealed roller bearing, comprising a bearing sleeve (1), characterized in that: The inner wall of the bearing sleeve (1) is equipped with a sealing mechanism (6). The sealing mechanism (6) includes a sealing seat (9) with an annular structure. The sealing seat (9) has two symmetrically arranged mounting cavities (16) inside. One side of the inner wall of each of the two mounting cavities (16) is provided with an opening. The inner walls of the two openings are slidably connected with limit blocks (12). The inner walls of the two mounting cavities are provided with adjustment components for adjusting the limit blocks (12). One side of the outer wall of the sealing seat (9) is fixedly connected with a protective cover (15). A sealing ring (14) is bonded to the outer wall of the sealing seat (9) near the protective cover (15). The sealing ring (14) is located outside the protective cover (15).

2. The composite sealed roller bearing according to claim 1, characterized in that: The adjustment assembly includes a screw (17) rotatably connected to the inner wall of the mounting cavity (16), and a trapezoidal block (18) is screwed to the outer wall of the screw (17), the trapezoidal block (18) being slidably connected to the inner wall of the mounting cavity (16).

3. The composite sealed roller bearing according to claim 2, characterized in that: The inner wall of the mounting cavity (16) is fixedly connected to two symmetrically arranged mounting rods (20), and the limiting block (12) is slidably connected to the outer wall of the two mounting rods (20).

4. The composite sealed roller bearing according to claim 3, characterized in that: A wedge plate (19) is fixedly connected to one side of the outer wall of the limiting block (12), and a sliding groove is provided on one side of the outer wall of the trapezoidal block (18). One end of the wedge plate (19) is slidably connected to the inner wall of the sliding groove.

5. The composite sealed roller bearing according to claim 4, characterized in that: The sealing seat (9) has two symmetrically arranged circular grooves (10) on one side of its outer wall, and the bottom inner walls of the two circular grooves (10) are rotatably connected to rotating parts (11). One end of the drive shaft of the rotating part (11) is fixedly connected to the screw (17).

6. The composite sealed roller bearing according to claim 5, characterized in that: The inner wall of the bearing sleeve (1) has two symmetrically arranged limiting grooves (8), and the specifications of the limiting grooves (8) match the specifications of the limiting block (12). The inner wall of the bearing sleeve (1) has two symmetrically arranged positioning grooves (7), and the outer wall of the sealing seat (9) is fixedly connected to two symmetrically arranged positioning blocks (13), and the specifications of the positioning blocks (13) match the specifications of the positioning grooves (7).

7. The composite sealed roller bearing according to claim 6, characterized in that: The inner wall of the bearing sleeve (1) is provided with an inner ring (2), and a retainer (3) is fixedly connected to the outer wall of the inner ring (2). The outer wall of the retainer (3) is provided with a plurality of rollers (4), and the rollers (4) are in contact with the inner wall of the bearing sleeve (1).

8. The composite sealed roller bearing according to claim 7, characterized in that: The outer wall of the bearing sleeve (1) is provided with an oil injection hole (5), and the inner wall of the oil injection hole (5) is fitted with a sealing plug.

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