Quick replacement device for mechanical bearing

Abstract

The utility model discloses a quick replacement device for a mechanical bearing, which belongs to the technical field of mechanical bearings and comprises a fixed circular plate, a connecting sleeve is mounted at the center of the fixed circular plate, the fixed circular plate is rotatably connected with a movable circular plate through the connecting sleeve, a first sliding groove is formed in one side of the fixed circular plate, and a second sliding groove is formed in the other side of the fixed circular plate. A rubber pad is connected to the fixed circular plate, and a second sliding groove is formed in the fixed circular plate. According to the quick replacement device for the mechanical bearing, by rotating a movable circular plate, a guide groove can push supporting rods to slide, a sliding block is promoted to move along a second sliding groove, and therefore the distance between the three supporting rods is adjusted, the supporting rods can tension and fix bearings of different sizes, and then a threaded rod is rotated through a grip; after the push block at one end of the threaded rod abuts against the rotating shaft, the threaded rod continues to be rotated, so that the fixed circular plate can drive the supporting rod to move along the threaded rod, the bearing is driven to be separated from the rotating shaft, operation is simple, and workers conveniently detach and replace the bearing.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical bearings, in particular to a quick replacement device for mechanical bearings. Background Art

[0002] Bearings are an important component in mechanical equipment. They are components that fix and reduce the load friction coefficient during mechanical transmission. Bearings can be divided into two categories: rolling bearings and sliding bearings. During the installation process, the bearing requires a high precision between the shaft it matches, generally an interference fit, to achieve no movement during operation and to achieve operational reliability.

[0003] Bearings will wear out after working for a long time, so they need to be replaced as a protective measure. However, since the bearings are installed with an interference fit and the oil will mix with dust after long-term use, the bearings will stick to the holes in the bearing seat, making it difficult for workers to disassemble them, which is time-consuming and labor-intensive. Utility Model Content

[0004] In order to overcome the above-mentioned defects, the utility model provides a quick replacement device for mechanical bearings, which solves the problem that the bearings are difficult to disassemble and time-consuming and labor-intensive because the bearings are installed with an interference fit and the oil is mixed with dust after long-term use, causing the bearings to stick to the holes in the bearing seats.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick replacement device for mechanical bearings, comprising a fixed circular plate, a connecting sleeve is installed at the center of the fixed circular plate, the fixed circular plate is rotatably connected to a movable circular plate through the connecting sleeve, a first sliding groove is provided on one side of the fixed circular plate, a rubber pad is connected to the fixed circular plate, a second sliding groove is provided on the fixed circular plate, a slider is slidably connected in the second sliding groove, and a support rod is threadedly connected to the slider;

[0006] A threaded rod is connected to the inner thread of the connecting sleeve, one end of the threaded rod is connected to a push block, the other end of the threaded rod is connected to a handle, the handle is connected to a limiting plate, a fixing groove is provided in the handle, a movable plate is slidably connected to the handle, a groove is provided on the movable plate, a connecting spring is connected in the groove, and one end of the connecting spring is connected to a fixed block.

[0007] As a further solution of the utility model: a guide groove is opened on the movable circular plate, a fastening bolt is connected to one side of the movable circular plate, the fastening bolt slides in the first sliding groove, the sliding block is designed in an I-shape and the middle position of the sliding block slides in the second sliding groove.

[0008] As a further solution of the utility model: one end of the support rod is connected to a connection block, the other end of the support rod is connected to a magnet, and the support rod slides in the guide groove.

[0009] As a further solution of the utility model: the threaded rod passes through the movable circular plate, the rubber pad is arranged between the two second sliding grooves, the rubber pad is provided with anti-slip patterns, and the push block is of conical design.

[0010] As a further solution of the utility model: limiting grooves are provided on both sides of the movable plate, the limiting plate is U-shaped and in close contact with the limiting grooves, and one side of the fixed block is spherical and engaged with the fixed grooves.

[0011] As a further solution of the present invention: the second sliding grooves and guide grooves are both in number and are symmetrical about the center of the fixed circular plate, and the first sliding grooves and guide grooves are both in arc-shaped design.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The quick-changing device for mechanical bearings is provided with a movable circular plate, a guide groove, a slider, a support rod, a second slide groove, a magnet, a threaded rod and a handle. By rotating the movable circular plate, the arc-shaped guide groove can push the support rod to slide, and the slider moves along the second slide groove, so as to adjust the distance between the three support rods, so that the lower end of the support rod can be tightened to fix bearings of different sizes, and the magnet can absorb the bearing to prevent the support rod from sliding. Then, the threaded rod is rotated by the handle, and the push block at one end of the threaded rod is pressed against the rotating shaft, and the threaded rod is continued to be rotated, so that the fixed circular plate can drive the support rod to move along the threaded rod, thereby driving the bearing to be separated from the rotating shaft. The operation is simple and convenient for the staff to disassemble and replace the bearing.

[0014] 2. The quick-changing device for mechanical bearings is provided with a movable plate, a groove, a connecting spring, a fixed block, a fixed groove, a limit plate and a limit groove. By pulling the movable plate, the inner wall of the handle can push the fixed block to move through the spherical surface on one side of the fixed block, so that the fixed block moves to the inside of the groove to compress the connecting spring, and the fixed block is pushed into the fixed groove through the rebound of the connecting spring to fix the movable plate to prevent the movable plate from sliding, thereby extending the length of the handle to facilitate the staff to rotate the threaded rod, and when the movable plate moves, the limit plate and the limit groove will slide relative to each other, and finally the limit plate will contact with the end of the limit groove, thereby preventing the movable plate from slipping and falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the handle and the movable plate of the utility model;

[0017] Figure 3 for Figure 2 Schematic diagram of the enlarged structure in part A;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the fixed circular plate of the utility model;

[0019] In the figure: 1. fixed circular plate; 2. connecting sleeve; 3. movable circular plate; 4. first slide groove; 5. rubber pad; 6. second slide groove; 7. slider; 8. support rod; 9. threaded rod; 10. push block; 11. handle; 12. limit plate; 13. fixed groove; 14. movable plate; 15. limit groove; 16. groove; 17. connecting spring; 18. fixed block; 19. guide groove; 20. fastening bolt; 21. connecting block; 22. magnet. DETAILED DESCRIPTION

[0020] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0021] like Figure 1-4 As shown, the utility model provides a technical solution: a quick replacement device for mechanical bearings, comprising a fixed circular plate 1, a connecting sleeve 2 is installed at the center position of the fixed circular plate 1, the fixed circular plate 1 is rotatably connected to a movable circular plate 3 through the connecting sleeve 2, a first slide groove 4 is opened on one side of the fixed circular plate 1, a guide groove 19 is opened on the movable circular plate 3, a fastening bolt 20 is connected to one side of the movable circular plate 3, the fastening bolt 20 slides in the first slide groove 4, the slider 7 is I-shaped and the middle position of the slider 7 slides in the second slide groove 6, the position of the fastening bolt 20 in the first slide groove 4 is fixed by screwing the hexagonal nut, thereby preventing the movable circular plate 3 from rotating accidentally and causing the support rod 8 to move, and the I-shaped design of the slider 7 enables the slider 7 to slide smoothly in the second slide groove 6, preventing the slider 7 from tilting when moving.

[0022] A rubber pad 5 is connected to the fixed circular plate 1, and a second slide groove 6 is opened on the fixed circular plate 1. There are three second slide grooves 6 and three guide grooves 19, which are symmetrical with the center of the fixed circular plate 1. The first slide groove 4 and the guide groove 19 are both arc-shaped. The arc-shaped guide groove 19 can push the support rod 8 to move when the movable circular plate 3 rotates, so that the distance between multiple support rods 8 can be adjusted at the same time through multiple guide grooves 19. The operation is simple, so that the support rod 8 can contact bearings of different sizes, thereby improving the applicability of the replacement device.

[0023] A slider 7 is slidably connected in the second slide groove 6, a support rod 8 is threadedly connected to the slider 7, one end of the support rod 8 is connected to a connecting block 21, and the other end of the support rod 8 is connected to a magnet 22. The support rod 8 slides in the guide groove 19. When the movable circular plate 3 is rotated to tighten the lower end of the support rod 8 to fix the bearing, the magnet 22 will absorb the bearing, thereby preventing the support rod 8 from sliding due to unstable contact with the bearing.

[0024] The connecting sleeve 2 is internally threaded with a threaded rod 9, one end of the threaded rod 9 is connected to a push block 10, the threaded rod 9 passes through the movable circular plate 3, the rubber pad 5 is arranged between the two second slide grooves 6, the rubber pad 5 is provided with anti-slip texture, the push block 10 is conical in design, and the anti-slip texture on the rubber pad 5 can increase the friction between the palm of the staff, thereby assisting the staff to hold and fix the replacement device, avoiding the staff's hand slipping when the threaded rod 9 rotates, causing the fixed circular plate 1 to rotate, and affecting the disassembly efficiency of the bearing.

[0025] The other end of the threaded rod 9 is connected to a handle 11, and a limiting plate 12 is connected to the handle 11. A fixing groove 13 is provided in the handle 11. A movable plate 14 is slidably connected to the handle 11, and a groove 16 is provided on the movable plate 14. A connecting spring 17 is connected in the groove 16, and a fixing block 18 is connected to one end of the connecting spring 17. Limiting grooves 15 are provided on both sides of the movable plate 14. The limiting plate 12 is U-shaped and fits in contact with the limiting groove 15. One side of the fixing block 18 is spherical and fits in the fixing groove 13. The moving distance of the movable plate 14 is limited by the limiting plate 12, thereby preventing the movable plate 14 from detaching from the handle 11 and causing it to fall and be damaged. The spherical surface on one side of the fixing block 18 enables the movable plate 14 to be flexibly pushed by the inner wall of the handle 11 when it moves, thereby facilitating the staff to pull the movable plate 14.

[0026] The working principle of the utility model is:

[0027] By loosening the fastening bolts 20, the staff can rotate the movable circular plate 3, so that the guide groove 19 pushes the support rod 8 to slide, thereby driving the slider 7 to move along the second slide groove 6, so that the lower end of the support rod 8 can tighten and fix bearings of different sizes, and then tighten the hexagonal nut to fix the fastening bolts 20 to prevent the movable circular plate 3 from rotating, and then pull the movable plate 14 to move, so that the inner wall of the handle 11 can push the fixing block 18 into the groove 16, so that the fixing block 18 can compress the connecting spring 17, thereby rebounding the connecting spring 17. Push the fixing block 18 into the fixing groove 13 to fix the movable plate 14. By extending the overall length of the handle 11, it is convenient for the staff to rotate the threaded rod 9. When the threaded rod 9 rotates, the staff needs to hold the fixed circular plate 1 to prevent the fixed circular plate 1 from rotating. When the threaded rod 9 is rotated by the handle 11, the push block 10 at one end of the threaded rod 9 will first resist the rotating shaft, and then the threaded rod 9 will continue to be rotated, so that the fixed circular plate 1 can drive the support rod 8 to move along the threaded rod 9, thereby driving the bearing to disengage from the rotating shaft, completing the replacement and disassembly of the bearing.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A quick-change device for a mechanical bearing, comprising a fixed circular plate (1), characterized in that: A connecting sleeve (2) is installed at the center of the fixed circular plate (1), and the fixed circular plate (1) is rotatably connected to the movable circular plate (3) through the connecting sleeve (2). A first sliding groove (4) is provided on one side of the fixed circular plate (1), and a rubber pad (5) is connected to the fixed circular plate (1). A second sliding groove (6) is provided on the fixed circular plate (1), and a sliding block (7) is slidably connected in the second sliding groove (6), and a support rod (8) is threadedly connected to the sliding block (7); The connecting sleeve (2) is internally threadedly connected to a threaded rod (9), one end of the threaded rod (9) is connected to a push block (10), the other end of the threaded rod (9) is connected to a handle (11), the handle (11) is connected to a limiting plate (12), a fixing groove (13) is provided in the handle (11), a movable plate (14) is slidably connected to the handle (11), a groove (16) is provided in the movable plate (14), a connecting spring (17) is connected in the groove (16), and one end of the connecting spring (17) is connected to a fixing block (18).

2. A quick-change device for mechanical bearings according to claim 1, characterized in that: The movable circular plate (3) is provided with a guide groove (19), one side of the movable circular plate (3) is connected with a fastening bolt (20), the fastening bolt (20) slides in the first slide groove (4), the sliding block (7) is designed in an I-shape and the middle position of the sliding block (7) slides in the second slide groove (6).

3. A quick-change device for mechanical bearings according to claim 2, characterized in that: One end of the support rod (8) is connected to a connection block (21), the other end of the support rod (8) is connected to a magnet (22), and the support rod (8) slides in the guide groove (19).

4. A quick-change device for mechanical bearings according to claim 1, characterized in that: The threaded rod (9) passes through the movable circular plate (3), the rubber pad (5) is arranged between the two second sliding grooves (6), the rubber pad (5) is provided with anti-slip patterns, and the push block (10) is of conical design.

5. A quick-change device for mechanical bearings according to claim 1, characterized in that: The movable plate (14) has limiting grooves (15) on both sides, the limiting plate (12) is U-shaped and fits in contact with the limiting grooves (15), and one side of the fixed block (18) is spherical and fits in the fixed groove (13).

6. A quick-change device for mechanical bearings according to claim 2, characterized in that: There are three of each of the second sliding grooves (6) and the guide grooves (19) and they are symmetrical about the center of the fixed circular plate (1); and both of the first sliding grooves (4) and the guide grooves (19) are of arc-shaped design.

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