Screw type bearing puller

Abstract

The utility model belongs to the technical field of bearing disassembly, and particularly relates to a screw type bearing puller. A sliding groove is formed in the center of the top of an assembly block, and assembly grooves are formed in the inner walls of the front and rear sides of the sliding groove; the two L-shaped abutting pieces are fixedly installed on the front side and the rear side of the assembling block correspondingly, and a moving groove is formed in the top of the transverse assembling block. The first driving mechanism is arranged in one assembling groove, and the two displacement blocks are slidably assembled on the left side and the right side in the moving groove correspondingly. The second driving mechanism is arranged in the moving groove; the two connecting blocks are fixedly installed at the bottoms of the two displacement blocks correspondingly, through grooves are formed in the lower portions of the sides, close to each other, of the two connecting blocks correspondingly, and clamping blocks are slidably assembled in the two through grooves correspondingly. The bearing dismounting tool is simple in structure and reasonable in design, pulling force can be selectively applied to an outer ring or an inner ring of a bearing according to the mounting mode of the bearing during use, the bearing is dismounted, functionality and applicability are enhanced, and operation is easy, convenient and fast.

Description

Technical Field

[0001] This utility model belongs to the field of bearing disassembly technology, specifically relating to a screw-type bearing puller. Background Technology

[0002] Bearing pullers are a common tool in the mechanical repair industry. Their main function is to remove bearings from shafts or bushings. Bearing pullers have a relatively simple structure but are highly practical, hence their widespread use. There are generally two types of existing bearing pullers: one that applies pulling force to the outer ring of the bearing to remove it, and another that applies pulling force to the inner ring. Each type of bearing puller typically only has one function, allowing it to remove bearings with the corresponding mounting method. Therefore, its functionality and applicability are limited and require improvement. Utility Model Content

[0003] The purpose of this utility model is to provide a screw-type bearing puller that allows for the application of pulling force to either the outer or inner ring of the bearing during use, depending on the bearing's installation method, to disassemble the bearing. This enhances the functionality and applicability of the bearing and makes it simple and convenient to operate.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0005] A screw-type bearing puller, comprising

[0006] An assembly block, wherein a sliding groove is provided at the center of the top of the assembly block, and assembly grooves are provided on the inner walls of both the front and rear sides of the sliding groove;

[0007] Two L-shaped abutment members are provided, and the two L-shaped abutment members are respectively fixedly installed on the front and rear sides of the assembly block;

[0008] A transverse assembly block, which is slidably assembled inside a slide groove, and a movable groove is provided on the top of the transverse assembly block;

[0009] A first driving mechanism is disposed inside one of the assembly slots and is used to drive the horizontal assembly block to move up and down.

[0010] Two displacement blocks are provided, and the two displacement blocks are slidably assembled on the left and right sides of the inside of the moving groove, respectively.

[0011] The second driving mechanism is disposed inside the moving slot and is used to drive the two displacement blocks to move closer or further apart from each other.

[0012] There are two connecting blocks. The two connecting blocks are fixedly installed on the bottom of the two displacement blocks respectively. The lower part of the two connecting blocks on the side close to each other is provided with a through groove. The two through grooves are slidably fitted with a locking block. The two locking blocks and the two connecting blocks are provided with a locking component.

[0013] As a preferred technical solution, the locking assembly includes a slider, a locking groove is provided on the lower side of the connecting block, the slider is slidably assembled inside the locking groove, a connecting groove is provided at the bottom of the locking groove and connected to the through groove, a triangular block is fixedly installed at the bottom of the slider, a plurality of triangular grooves are arranged on the top of the locking block, the lower end of the triangular block extends into one of the triangular grooves, a spring is fixedly installed at the upper end of the slider, and one end of the spring is fixedly connected to the inner wall of the locking groove.

[0014] As a preferred technical solution, the first driving mechanism includes a threaded rod, one end of which is rotatably connected to the inner wall of the bottom side of one of the assembly slots, the upper end of which extends out of the assembly block and is fixedly installed with a first screw block, and adjusting blocks are fixedly installed on both the front and rear sides of the transverse assembly block, the two adjusting blocks are slidably connected to the two assembly slots respectively, and one of the adjusting blocks is threadedly connected to the threaded rod.

[0015] As a preferred technical solution, the second driving mechanism includes a bidirectional threaded rod, one end of which is rotatably connected to the inner wall of the right side of the moving groove, and the other end of which passes through two displacement blocks in sequence and extends out of the transverse assembly block. A second screw block is fixedly installed on one end of the bidirectional threaded rod, and the two displacement blocks are respectively threaded to the forward thread section and the reverse thread section of the bidirectional threaded rod.

[0016] The beneficial effects of this utility model are:

[0017] When using it, select and adjust the relative position of the two locking blocks according to the bearing disassembly method. Adjustment is simple and convenient; just push the locking blocks to move them. The adjusted locking blocks can be used to disassemble the bearing using the outer or inner ring of the bearing, further improving its functionality and applicability. It can also be used to disassemble bearings of different diameters, making it more practical. Attached Figure Description

[0018] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0021] Figure 3This is a partial cross-sectional structural diagram of the present invention;

[0022] Figure 4 for Figure 3 A magnified structural diagram at point A;

[0023] Figure 5 This is a partial structural schematic diagram of the present invention.

[0024] Reference numerals: Assembly block 1, slide groove 11, assembly groove 12, L-shaped abutment 2, transverse assembly block 3, moving groove 31, first drive mechanism 4, threaded rod 41, first tightening block 42, adjusting block 43, displacement block 5, bidirectional threaded rod 51, second tightening block 52, second drive mechanism 501, connecting block 6, through groove 61, locking block 62, slider 63, locking groove 631, connecting groove 64, triangular block 65, triangular groove 66, spring 67. Detailed Implementation

[0025] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] like Figure 1-5 As shown, this utility model discloses a screw-type bearing puller, comprising:

[0027] Assembly block 1, with a sliding groove 11 at the center of the top of assembly block 1, and assembly grooves 12 on the inner walls of the front and rear sides of the sliding groove 11.

[0028] Two L-shaped abutment parts 2 are provided, and the two L-shaped abutment parts 2 are fixedly installed on the front and rear sides of the assembly block 1 respectively;

[0029] A horizontal assembly block 3 is slidably assembled inside the slide groove 11, and a moving groove 31 is provided on the top of the horizontal assembly block 3.

[0030] The first driving mechanism 4 is disposed inside one of the assembly slots 12 and is used to drive the transverse assembly block 3 to move up and down. Specifically, the first driving mechanism 4 includes a threaded rod 41, one end of which is rotatably connected to the inner wall of the bottom side of one of the assembly slots 12. The upper end of the threaded rod 41 extends out of the assembly block 1 and is fixedly installed with a first screw block 42. Adjusting blocks 43 are fixedly installed on both the front and rear sides of the transverse assembly block 3. The two adjusting blocks 43 are slidably connected to the two assembly slots 12 respectively, and one of the adjusting blocks 43 is threadedly connected to the threaded rod 41.

[0031] In the initial state, the threaded rod 41 locks the position of the adjusting block 43, so the transverse assembly block 3 cannot move up or down. When the bearing needs to be pulled out, the state of the two locking blocks 6 is adjusted according to the pulling state. When one end of the two locking blocks 6 is close to each other, the bearing can be pulled out by the top of the two locking blocks 3 abutting against the outer ring of the bearing. When the two locking blocks 6 are far apart, they abut against the inner ring of the bearing and pull out the bearing. During the pulling out, the two L-shaped abutting parts 2 abut against the components at the bearing assembly. After the position of the two locking blocks 62 is adjusted, the two connecting blocks 6 are controlled to move down, driving the two locking blocks 62 to move down below the bearing. Then, under the action of the second drive mechanism 501, the two locking blocks 62 are locked in the designated position of the bearing. Then, the transverse assembly block 3 is controlled to move up again, generating driving force to drive the two locking blocks 62 to move up. After the locking blocks 62 abut against the inner or outer ring of the bearing, the bearing is pulled out as the transverse assembly block 3 moves up. The operation is simple and convenient.

[0032] There are two displacement blocks 5, which are slidably assembled on the left and right sides of the inside of the moving groove 31, respectively.

[0033] The second drive mechanism 501 is located inside the moving groove 31 and is used to drive the two displacement blocks 5 to move closer to each other or further away from each other. Specifically, the second drive mechanism 501 includes a bidirectional threaded rod 51. One end of the bidirectional threaded rod 51 is rotatably connected to the inner wall of the right side of the moving groove 31, and the other end of the bidirectional threaded rod 51 passes through the two displacement blocks 5 in sequence and extends out of the transverse assembly block 3. A second screw block 52 is fixedly installed on one end of the bidirectional threaded rod 51, and the two displacement blocks 5 are respectively threadedly connected to the forward thread section and the reverse thread section of the bidirectional threaded rod 51.

[0034] In use, depending on the bearing diameter, the second screw block 52 is rotated, which drives the bidirectional threaded rod 51 to rotate. The bidirectional threaded rod 51 drives the two displacement blocks 5 to move closer or further apart, which in turn drives the two connecting blocks 6 to move closer or further apart synchronously, ultimately adjusting the position of the locking block 62. The operation is simple and convenient. With the rise and fall of the transverse assembly block 3, it can be used for bearings of different diameters.

[0035] There are two connecting blocks 6, which are fixedly installed on the bottom of the two displacement blocks 5 respectively. The lower part of the two connecting blocks 6 on the side close to each other is provided with a through groove 61. The two through grooves 61 are slidably fitted with a locking block 62. The two locking blocks 62 and the two connecting blocks 6 are provided with a locking component. The specific locking component includes a slider 63. The lower side of the connecting block 6 is provided with a locking groove 631. The slider 63 is slidably fitted into the locking groove 631. The bottom of the locking groove 631 is provided with a connecting groove 64 that communicates with the through groove 61. The bottom of the slider 63 is fixedly installed with a triangular block 65. The top of the locking block 62 is provided with several triangular grooves 66. The lower end of the triangular block 65 extends into one of the triangular grooves 66. The upper end of the slider 63 is fixedly installed with a spring 67. One end of the spring 67 is fixedly connected to the inner wall of the locking groove 631.

[0036] In the initial state, spring 67 generates a thrust, pushing triangular block 65 into one of the triangular grooves 66, thus locking the position of locking block 62. Locking block 62 will not displace within the through groove 61 without external force. Since the force is generated from bottom to top when the bearing is pulled out, locking block 62 is not subjected to a parallel thrust and will not displace. Simultaneously, the opening of several locking grooves 431 ensures that the top of locking block 62 is not flat, increasing the friction between locking block 62 and the bearing. Because the two sides of triangular block 65 are inclined, changing the position of locking block 62... When in use, simply push the locking block 62 to the left or right. After being pushed, the locking block 62 will overcome the pushing force generated by the spring 67. The triangular block 65 will be pushed by the inclined plane under the movement of the triangular groove 66, pushing the triangular block 65 upward to compress the spring 67 until it is aligned with the next triangular groove 66. The spring 67 will then generate a pushing force again, pushing the triangular block 65 downward to extend into the aligned triangular groove 66. This allows for convenient and quick adjustment of the positions of the two locking blocks 62, and they can be kept locked after adjustment. It is convenient and quick to use and can effectively improve the work efficiency of the staff.

[0037] The device is used as follows:

[0038] Due to different bearing installation methods, some bearings need to be pulled out from the inner ring, while others need to be pulled out from the outer ring. Depending on the bearing's operating state, the relative positions of the two locking blocks 62 are adjusted first. When the two locking blocks 62 extend out of the through groove 61 on one side, it is the outer ring pull-out state; when the two locking blocks 62 extend out of the through groove 61 on the opposite side, it is the inner ring pull-out state. To adjust the position of the locking blocks 62, simply push the two locking blocks 62 to move inside the through groove 61. During the adjustment process, the triangular block 65 can lock the position of the locking blocks 62 in real time. After the adjustment is completed, the second screwing block 52 drives the bidirectional threaded rod 51 to rotate. The bidirectional threaded rod 51 drives the two displacement blocks 5 to move closer or further apart to adjust the position of the two connecting blocks 6. Then, the threaded rod 41 drives the transverse assembly block 3 to move down through the bearing. Next, the two connecting blocks 6 are controlled to move closer together to control the two locking blocks 62 to engage in the designated position on the bearing. Finally, the transverse assembly block 3 is controlled to move up to complete the removal of the bearing. The operation is simple and convenient, and it has strong applicability.

[0039] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A screw-type bearing puller, characterized in that: include Assembly block (1), the top center of the assembly block (1) is provided with a sliding groove (11), and the inner walls of the front and rear sides of the sliding groove (11) are provided with assembly grooves (12); Two L-shaped abutment pieces (2) are provided, and the two L-shaped abutment pieces (2) are respectively fixedly installed on the front and rear sides of the assembly block (1); A transverse assembly block (3) is slidably assembled inside a slide groove (11), and a moving groove (31) is provided on the top of the transverse assembly block (3); The first driving mechanism (4) is disposed inside one of the assembly slots (12) and is used to drive the transverse assembly block (3) to move up and down. There are two displacement blocks (5), which are slidably assembled on the left and right sides inside the moving groove (31). The second drive mechanism (501) is disposed inside the moving slot (31) and is used to drive the two displacement blocks (5) to move closer to each other or further away from each other. There are two connecting blocks (6). The two connecting blocks (6) are fixedly installed on the bottom of the two displacement blocks (5). The two connecting blocks (6) are provided with through grooves (61) on the lower part of the side close to each other. The two through grooves (61) are slidably fitted with locking blocks (62). The two locking blocks (62) are provided with locking components between the two connecting blocks (6).

2. The screw-type bearing puller according to claim 1, characterized in that: The locking assembly includes a slider (63), and a locking groove (631) is provided on the lower side of the connecting block (6). The slider (63) is slidably assembled inside the locking groove (631). A connecting groove (64) connected to the through groove (61) is provided at the bottom of the locking groove (631). A triangular block (65) is fixedly installed at the bottom of the slider (63). Several triangular grooves (66) are arranged on the top of the locking block (62). The lower end of the triangular block (65) extends into one of the triangular grooves (66). A spring (67) is fixedly installed at the upper end of the slider (63). One end of the spring (67) is fixedly connected to the inner wall of the locking groove (631).

3. A screw-type bearing puller according to claim 1, characterized in that: The first driving mechanism (4) includes a threaded rod (41), one end of which is rotatably connected to the inner wall of the bottom side of one of the assembly slots (12). The upper end of the threaded rod (41) extends out of the assembly block (1) and is fixedly installed with a first screw block (42). Adjusting blocks (43) are fixedly installed on both the front and rear sides of the transverse assembly block (3). The two adjusting blocks (43) are slidably connected to the two assembly slots (12) respectively, and one of the adjusting blocks (43) is threadedly connected to the threaded rod (41).

4. A screw-type bearing puller according to claim 1, characterized in that: The second drive mechanism (501) includes a bidirectional threaded rod (51). One end of the bidirectional threaded rod (51) is rotatably connected to the inner wall of the right side of the moving groove (31). The other end of the bidirectional threaded rod (51) passes through two displacement blocks (5) in sequence and extends out of the transverse assembly block (3). A second screw block (52) is fixedly installed on one end of the bidirectional threaded rod (51). The two displacement blocks (5) are respectively threaded to the forward thread section and the reverse thread section of the bidirectional threaded rod (51).

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