Motor bearing remover

Abstract

The utility model relates to the technical field of small motor bearing dismantling construction, in particular to a motor bearing dismantling device which comprises a chuck and a connecting disc, a plurality of connecting rods arranged in the circumferential direction of the chuck are connected between the chuck and the connecting disc, and a clamping groove used for clamping a motor shaft is formed in the chuck. The side, away from the chuck, of the connecting disc is connected with a sliding rod, the side, away from the connecting disc, of the sliding rod is connected with a blocking plate, and the sliding rod is slidably sleeved with an impact steel pipe. The bearing dismounting device has the technical effect of reducing the damage to the bearing when the bearing on the small-sized motor is dismounted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of small -size motor bearing dismantling construction especially is related to a motor bearing dismantler. BACKGROUND

[0002] In the motor maintenance process, the bearing dismounting is a common and key operation. The traditional method adopts hammering, puller and other tools, but these methods often have the problems of low efficiency, easy damage to the bearing or shaft, and improper operation may cause harm to the maintenance personnel. Therefore, an electric motor bearing removal tool capable of simplifying the operation process, improving the dismounting efficiency and ensuring safety is urgently needed. SUMMARY

[0003] In order to solve the problems existing in the prior art, the utility model provides a motor bearing dismantler.

[0004] The utility model provides a motor bearing dismantler, adopts the following technical scheme:

[0005] A motor bearing dismantler, comprising a chuck and a connecting disc, a plurality of connecting rods are connected between the chuck and the connecting disc and arranged along the circumferential direction of the chuck, a clamping groove for clamping the motor shaft is formed on the chuck, a sliding rod is connected to the side of the connecting disc away from the chuck, a baffle is connected to the side of the sliding rod away from the connecting disc, and a steel pipe is slidably sleeved on the sliding rod.

[0006] Optionally, the connecting rod comprises integrally formed first, second and third connecting rods, the first connecting rod passes through the chuck, two first fixed nuts are threadedly connected to the first connecting rod, the two first fixed nuts are respectively located on the two sides of the chuck, the third connecting rod penetrates the connecting disc, two second fixed nuts are threadedly connected to the third connecting rod, and the two second fixed nuts are respectively located on the two sides of the connecting disc.

[0007] Optionally, a first locking rod is fixed to the end of the sliding rod away from the baffle, the first locking rod penetrates the connecting plate and is threadedly connected with a first locking nut.

[0008] Optionally, a connecting groove is formed on the connecting disc, the end of the sliding rod away from the baffle is rotationally connected with the groove wall of the connecting groove, a first mounting block is fixed to the side of the connecting disc close to the chuck, a second mounting block is fixed to the side of the connecting disc away from the chuck, a second locking hole is formed on the second mounting block, a third locking hole is formed on the sliding rod, a locking pin is arranged on the sliding rod, the locking pin can pass through the second locking hole and be inserted into the third locking hole, a first locking hole is formed on the first mounting block, after the sliding rod is rotated by 180 degrees, the third locking hole is aligned with the first locking hole, and the locking pin is inserted into the first locking hole and the third locking hole.

[0009] Optionally, a telescopic limit support rod is provided on the side of the chuck away from the connecting plate. A fixed rod and a limit block are fixed on the chuck. The fixed rod is located on one side of the chuck groove, and the limit block is located on the other side of the chuck groove. One end of the limit support rod is rotatably connected to the fixed rod, and the other end of the limit support rod is provided with a limit groove. By rotating the limit support rod, the limit block can be inserted into the limit groove.

[0010] Optionally, a second locking rod is fixed to the end of the sliding rod away from the connecting plate. The second locking rod passes through the blocking plate and is threadedly connected to a second locking nut.

[0011] Compared with the prior art, the present invention has the following technical effects:

[0012] This practical bearing remover has a simple structure, is convenient, flexible and practical, and improves work efficiency. Through the chuck groove 11, it can adapt to motor bearings of various specifications with an inner diameter of 30-45mm, which improves the versatility and practicality of the tool and minimizes damage to the bearing during disassembly. Attached Figure Description

[0013] Figure 1 This is a perspective view of the overall structure of Embodiment 1 of this utility model;

[0014] Figure 2 This is a front view of the overall structure of Embodiment 1 of this utility model;

[0015] Figure 3 This is a perspective view of the overall structure of Embodiment 2 of this utility model;

[0016] Figure 4 This is a schematic diagram of the first mounting block and the second mounting block in Embodiment 2 of this utility model;

[0017] Figure 5 This is a schematic diagram of the limiting support rod in Embodiment 2 of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Chuck; 11. Slot; 12. First fixing nut; 2. Connecting rod; 21. First connecting rod; 22. Second connecting rod; 23. Third connecting rod; 3. Connecting disc; 31. Second fixing nut; 32. Connecting groove; 4. Sliding rod; 41. Impact steel pipe; 42. Pulley; 43. Second locking rod; 44. Blocking plate; 45. Second locking nut; 46. Third locking hole; 47. Locking pin; 5. Connecting assembly; 51. First locking rod; 52. First locking nut; 53. First mounting block; 54. Second mounting block; 55. Second locking hole; 56. First locking hole; 6. Limiting support rod; 61. First limiting support rod; 62. Second limiting support rod; 63. Fixing rod; 64. Telescopic hole; 65. Spring; 66. Limiting block; 67. Limiting groove. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 The present invention will be described in further detail below.

[0020] Embodiment 1 of this utility model

[0021] Reference Figure 1 and Figure 2 This utility model discloses a motor bearing remover, including a chuck 1, connecting rods 2, and a connecting plate 3. The chuck 1 has stepped grooves 11 to accommodate motor bearings with inner diameters ranging from 30-45mm. Three connecting rods 2 are arranged between the connecting plate 3 and the chuck 1, evenly distributed along the circumference of the chuck 1. Each connecting rod 2 includes an integrally formed first connecting rod 21, second connecting rod 22, and third connecting rod 23, both of which are threaded rods. The axis of the chuck 1 coincides with the axis of the connecting plate 3. The chuck 1 has three evenly distributed first connecting holes in its circumference, and the connecting plate 3 has three evenly distributed second connecting holes in its circumference.

[0022] The first connecting rod 21 passes through the first connecting hole, and two first fixing nuts 12 are threaded onto the first connecting rod 21. The first fixing nuts 12 are located on both sides of the chuck 1, and the first fixing nuts 12 abut against the chuck 1. The second connecting rod 22 passes through the second connecting hole, and two second fixing nuts 31 are threaded onto the second connecting rod 22. The two second fixing nuts 31 are located on both sides of the connecting plate 3, and the second fixing nuts 31 abut against the connecting plate 3.

[0023] A sliding rod 4 is provided on the side of the connecting plate 3 away from the chuck 1. A connecting assembly 5 is provided on the connecting plate 3. The end of the sliding rod 4 near the connecting plate 3 is fixed by the connecting assembly 5. An impact steel pipe 41 is sleeved on the sliding rod 4, and the impact steel pipe 41 can slide along the axis of the sliding rod 4. A lever 42 is fixed on the outer wall of the impact steel pipe 41 for the operator to grip the impact steel pipe 41.

[0024] The connecting assembly 5 includes a first locking rod 51 and a first locking nut 52. The end of the sliding rod 4 closest to the connecting plate 3 is fixed to the first locking rod 51. The first locking rod 51 passes through the connecting plate 3 and is threadedly connected to the first locking nut 52. A second locking rod 43 is fixed to the end of the sliding rod 4 furthest from the connecting plate 3. A blocking plate 44, which is a round or square steel plate, is provided on the side of the sliding rod 4 furthest from the connecting plate 3. The second locking rod 43 passes through the blocking plate 44 and is threadedly connected to a second locking nut 45. When the remover is not in use, the sliding rod 4 can be removed for easy storage, reducing the space occupied by the remover.

[0025] The implementation principle of this utility model of a motor bearing removal tool is as follows: When disassembling a motor bearing, first remove the motor end cover, and then clamp the slot 11 on the chuck 1 onto the motor shaft. The chuck 1 is located on the side of the bearing away from the connecting plate 3. Then, hold the impact steel pipe 41 and the lever 42, and forcefully impact the blocking plate 44 with the impact steel pipe 41. The bearing is subjected to force, thereby causing the bearing to fall off the shaft. This utility model of a bearing removal tool causes minimal damage to the bearing.

[0026] This practical bearing remover has a simple structure, is convenient, flexible and practical, and improves work efficiency. Through the slot 11 on the chuck 1, it can adapt to motor bearings of various specifications with an inner diameter of 30-45mm, thus improving the tool's versatility and practicality.

[0027] Embodiment 2 of this utility model

[0028] Reference Figure 3 , Figure 4 and Figure 5 The difference from Embodiment 1 is that the connecting assembly 5 includes a first mounting block 53 and a second mounting block 54. The two first mounting blocks 53 are fixed on the side of the connecting plate 3 near the chuck 1, and the two second mounting blocks 54 are fixed on the side of the connecting plate 3 away from the chuck 1. A connecting groove 32 is provided on the connecting plate 3, and one end of the sliding rod 4 is rotatably connected to the groove wall of the connecting groove 32. The sliding rod 4 passes between the two second mounting blocks 54.

[0029] The second mounting block 54 has a second locking hole 55, the sliding rod 4 has a third locking hole 46, and the sliding rod 4 is provided with a locking pin 47. The locking pin 47 passes through the second locking hole 55 on the second mounting block 54 and the third locking hole 46 on the sliding rod 4, thereby fixing the sliding rod 4 and the second mounting block 54.

[0030] To facilitate the storage of the motor bearing remover and reduce its footprint, a first locking hole 56 is provided on the first mounting block 53. When the remover is not in use, the locking pin 47 is pulled out from the second locking hole 55, the sliding rod 4 is rotated 180 degrees to align the third locking hole 46 with the first locking hole 56, and then the locking pin 47 is inserted into the first locking hole 56 and the third locking hole 46.

[0031] A limit support rod 6 is provided on the side of the chuck 1 away from the connecting plate 3. The limit support rod 6 is a telescopic rod and includes a first limit support rod 61 and a second limit support rod 62. A fixing rod 63 is fixed on the chuck 1. One end of the first limit support rod 61 is rotatably connected to the fixing rod 63. A telescopic hole 64 is opened at the end of the first limit support rod 61 away from the fixing rod 63. A spring 65 is provided in the telescopic hole 64. One end of the second limit support rod 62 is inserted into the telescopic hole 64 and fixed to the spring 65. The end of the spring 65 away from the second limit support rod 62 is fixed to the inner wall of the telescopic hole 64. A limit block 66 is fixed on the chuck 1. The fixing rod 63 is located on one side of the chuck groove 11, and the limit block 66 is located on the other side of the chuck groove 11.

[0032] The second limiting support rod 62 has a limiting groove 67. Rotate the first limiting support rod 61 and the second limiting support rod 62, and move the second limiting support rod 62 into the telescopic hole 64 to compress the spring 65. When the second limiting support rod 62 is rotated to the horizontal position, the limiting block 66 is inserted into the limiting groove 67.

[0033] The limiting support rod 6 serves two purposes. First, when disassembling the bearing, the limiting support rod 6 is positioned horizontally, and the limiting block 66 is inserted into the limiting groove 67, thus confining the motor shaft within the retaining groove 11 and preventing it from slipping out of the bottom of the groove 11, facilitating bearing disassembly. Second, when not using the removal tool, the sliding rod 4 can be rotated 180 degrees, allowing it to pass through the retaining groove 11 and be secured by the locking pin 47 for storage. When the limiting support rod 6 is placed horizontally, if the locking pin 47 falls off, the end of the blocking plate 44 of the sliding rod 4 moves downwards, allowing the sliding rod 4 to rest on the limiting support rod 6, preventing it from slipping out of the retaining groove 11.

[0034] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An electric machine bearing puller characterized by: The utility model provides a chuck (1) and connecting disc (3) are connected with a plurality of connecting rod (2) who sets along the circumferential direction of chuck (1) between chuck (1) and connecting disc (3), chuck (1) is equipped with the clamping groove (11) for clamping motor shaft, the side of connecting disc (3) away from chuck (1) is connected with sliding rod (4), the side of sliding rod (4) away from connecting disc (3) is connected with the baffle (44), and sliding rod (4) is slidably sleeved with the impact steel pipe (41).

2. The motor bearing puller of claim 1, wherein: Connecting rod (2) includes integrally formed first connecting rod (21), second connecting rod (22) and third connecting rod (23), first connecting rod (21) passes through chuck (1), two first fixed nuts (12) are threadedly connected on first connecting rod (21), two first fixed nuts (12) are located on both sides of chuck (1) respectively, third connecting rod (23) penetrates connecting disc (3), and two second fixed nuts (31) are threadedly connected on third connecting rod (23), and two second fixed nuts (31) are located on both sides of connecting disc (3) respectively.

3. The motor bearing puller of claim 1 or 2, wherein: The end of sliding rod (4) away from baffle (44) is fixed with first locking rod (51), first locking rod (51) penetrates connecting plate and is threadedly connected with first locking nut (52).

4. The motor bearing puller of claim 1, wherein: Connecting disc (3) is provided with connecting groove (32), and the end of sliding rod (4) away from baffle (44) is rotatably connected with the groove wall of connecting groove (32), first mounting block (53) is fixed on the side of connecting disc (3) close to chuck (1), second mounting block (54) is fixed on the side of connecting disc (3) away from chuck (1), second mounting block (54) is provided with second locking hole (55), sliding rod (4) is provided with third locking hole (46), sliding rod (4) is provided with locking pin (47), locking pin (47) can be inserted into third locking hole (46) through second locking hole (55), first mounting block (53) is provided with first locking hole (56), after rotating sliding rod (4) by 180 degrees, third locking hole (46) is aligned with first locking hole (56), and locking pin (47) is inserted into first locking hole (56) and third locking hole (46).

5. The motor bearing puller of claim 1 or 4, wherein: The side of chuck (1) away from connecting disc (3) is provided with telescopic limiting support rod (6), chuck (1) is fixed with fixed rod (63) and limiting block (66), fixed rod (63) is located on one side of clamping groove (11), limiting block (66) is located on the other side of clamping groove (11), one end of limiting support rod (6) is rotatably connected with fixed rod (63), and the other end of limiting support rod (6) is provided with limiting groove (67), limiting block (66) can be inserted into limiting groove (67) by rotating limiting support rod (6).

6. The motor bearing puller of claim 1, wherein: The end of sliding rod (4) away from connecting plate is fixed with second locking rod (43), and second locking rod (43) penetrates baffle (44) and is threadedly connected with second locking nut (45).

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