Bearing puller

Abstract

The utility model provides a bearing puller, which belongs to the technical field of bearing disassembly and is provided with a claw and a pulling mechanism for driving the claw to move. The drawing mechanism is provided with a drawing shaft and a drawing sleeve, and the drawing shaft is movably sleeved with the drawing sleeve; a pull rod and an adjusting rod are arranged between the claw and the drawing sleeve, and the adjusting rod is detachably mounted behind the pull rod; the rear end of the adjusting rod is hung on the drawing sleeve, and the claw is arranged at the front end of the pull rod; the hook hooks the bearing on the shaft, and the drawing mechanism drives the hook to move in the axial direction of the shaft, so that the bearing can be conveniently disassembled; the axial distance between the front end of the drawing shaft and the hook claw can be adjusted by using the adjusting rods with different lengths, so that various bearings can be disassembled, and the applicability of the drawing device is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of bearing disassembly, and more specifically, relates to a bearing puller. Background Art

[0002] Bearings are components that fix and reduce the load friction coefficient during mechanical transmission. They are an important component in modern mechanical equipment. Bearing pullers are devices that remove inner bearings from bearing seats. Bearing pullers include mounting plates, tension bolts and through-thread bolts. There are no less than two tension bolts. The bottom of each tension bolt has a claw that can hang on the bottom of the internal bearing. A fastening nut is installed on each tension bolt. There is no less than one long hole in the middle of the mounting plate. The width of the long hole is greater than the diameter of the tension bolt. The lower end of each tension bolt passes through the long hole and extends to the bottom of the mounting plate. The fastening nut can be stuck on the mounting plate at the long hole. No less than two positioning nuts are fixed on the mounting plate outside the long hole.

[0003] The existing bearing puller has the following disadvantages: the length of the hook of the bearing puller cannot be adjusted, the application range is small, the bearings of different models cannot be disassembled, and the use is inconvenient. Summary of the invention

[0004] The utility model aims to make up for the deficiencies of the prior art and provide a bearing puller. The technical solution adopted in this application is:

[0005] A bearing puller is used to disassemble bearings, and is provided with a hook claw and a pulling mechanism that drives the hook claw to move; the pulling mechanism is provided with a pulling shaft and a pulling sleeve, and the pulling sleeve is movably sleeved on the pulling shaft; a pulling rod and an adjusting rod are provided between the hook claw and the pulling sleeve, and the adjusting rod is detachably installed behind the pulling rod; the rear end of the adjusting rod is hung on the pulling sleeve, and the hook claw is provided at the front end of the pulling rod.

[0006] Preferably, a fixing bolt and a fixing nut are provided at the connection between the pull rod and the adjusting rod, and the fixing nut is screwed onto the fixing bolt; the fixing bolt passes through the pull rod and the adjusting rod, and both the pull rod and the adjusting rod have connecting holes that are compatible with the fixing bolt.

[0007] Preferably, the pull rod is provided with a plurality of connection holes, and the plurality of connection holes are evenly distributed along the axial direction of the pull rod.

[0008] Preferably, the pull rod is provided with three connecting holes.

[0009] Preferably, an orientation mechanism is provided between the pull rod and the adjusting rod, the orientation mechanism is provided with an orientation slot and an orientation block, the shapes of the orientation slot and the orientation block are adapted to each other; the orientation slot is provided on the adjusting rod, and the orientation block is provided on the pull rod.

[0010] Preferably, a hanging rod is provided on the outside of the pulling sleeve, the hanging rod is arranged along the radial direction of the pulling sleeve, and a hook hole is provided at the rear end of the adjusting rod, and the hook hole is in the shape of an oblong hole.

[0011] Preferably, the hanging rod is provided with a left hanging rod and a right hanging rod, and the left hanging rod and the right hanging rod are arranged opposite to each other; and two pull rods and two adjusting rods are also provided.

[0012] Preferably, the drawing shaft and the drawing sleeve are provided with mutually matching threads.

[0013] The advantages of this application are as follows:

[0014] The hook hooks the bearing on the shaft, and the pulling mechanism drives the hook to move along the axial direction of the shaft, which can facilitate the removal of the bearing;

[0015] The rear end of the adjusting rod is hung on the drawing sleeve, and the hook is arranged at the front end of the drawing rod. By using adjusting rods of different lengths, the axial distance between the front end of the drawing shaft and the hook can be adjusted, and various bearings can be disassembled, thereby increasing the applicability of the puller.

[0016] The pull rod is provided with a plurality of connection holes, and the fixing bolts are inserted into different connection holes, and the axial distance between the front end of the pulling shaft and the hook claw can also be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained like these drawings without paying any creative labor.

[0018] Figure 1 is a schematic diagram of a bearing puller;

[0019] Figure 2 It is a schematic diagram of the pull rod and the adjustment rod;

[0020] Figure 3 is a schematic diagram of the adjustment rod of Example 1;

[0021] Figure 4 Schematic diagram of the adjustment rod of Example 2.

[0022] Explanation of symbols in the figure:

[0023] 1 is a hook, 11 is a pull rod, and 111 is a connecting hole;

[0024] 2 is a pulling mechanism, 21 is a pulling shaft, 211 is a handle, 22 is a pulling sleeve, 221 is a hanging rod, 2211 is a left hanging rod, and 2212 is a right hanging rod;

[0025] 3 is an adjusting rod, 31 is a hook hole;

[0026] 4 is a fixing bolt;

[0027] 5 is a fixing nut;

[0028] 6 is an orientation mechanism, 61 is an orientation slot, and 62 is an orientation block. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] A bearing puller provided in an embodiment of the present application is now described.

[0031] Example 1

[0032] like Figure 1 As shown, a bearing puller is used to disassemble bearings. It is provided with a hook claw 1 and a pulling mechanism 2 for driving the hook claw 1 to move. The hook claw 1 hooks the bearing on the shaft, and the pulling mechanism 2 drives the hook claw 1 to move along the axial direction of the shaft, so that the bearing can be easily disassembled.

[0033] like Figure 1 and Figure 2 As shown, the drawing mechanism 2 is provided with a drawing shaft 21 and a drawing sleeve 22, and the drawing sleeve 22 is movably mounted on the drawing shaft 21; a drawing rod 11 and an adjusting rod 3 are provided between the hook 1 and the drawing sleeve 22, and the adjusting rod 3 is detachably mounted behind the drawing rod 11; the rear end of the adjusting rod 3 is hung on the drawing sleeve 22, and the hook 1 is arranged at the front end of the drawing rod 11. By using adjusting rods 3 of different lengths, the axial distance between the front end of the drawing shaft 21 and the hook 1 can be adjusted, and various bearings can be disassembled, thereby increasing the applicability of the puller.

[0034] A fixing bolt 4 and a fixing nut 5 are provided at the connection between the pull rod 11 and the adjusting rod 3, and the fixing nut 5 is screwed on the fixing bolt 4; the fixing bolt 4 passes through the pull rod 11 and the adjusting rod 3, and the pull rod 11 and the adjusting rod 3 are both provided with connecting holes 111 adapted to the fixing bolt 4.

[0035] like Figures 1 to 3As shown, an orientation mechanism 6 is provided between the pull rod 11 and the adjustment rod 3, and the orientation mechanism 6 is provided with an orientation groove 61 and an orientation block 62, and the shapes of the orientation groove 61 and the orientation block 62 are adapted to each other; the orientation groove 61 is provided on the adjustment rod 3, and the orientation block 62 is provided on the pull rod 11; the provision of the orientation mechanism 6 can ensure that the pull rod 11 and the adjustment rod 3 are smoothly connected together, and also ensure the stability of the pull rod 11 and the adjustment rod 3 after being connected, and avoid the pull rod 11 from shaking. In this embodiment, the positioning groove 61 extends from the front end to the rear end along the axial direction of the adjustment rod 3, the pull rod 11 is cylindrical, and the positioning block 62 is provided at the rear end of the pull rod 11.

[0036] A hanging rod 221 is provided on the outside of the drawing sleeve 22, and the hanging rod 221 is arranged along the radial direction of the drawing sleeve 22. A hook hole 31 is provided at the rear end of the adjusting rod 3, and the hook hole 31 is in the shape of an oblong hole. Within a certain range of the axial distance between the front end of the drawing shaft 21 and the hook claw 1, the hanging rod 221 can be directly inserted into the hook hole 31, and the adjusting rod 3 is hung on the drawing sleeve 22, which is convenient for operation.

[0037] The hanging rod 221 is provided with a left hanging rod 2211 and a right hanging rod 2212, and the left hanging rod 2211 and the right hanging rod 2212 are arranged opposite to each other; the pull rod 11 and the adjusting rod 3 are also provided with two. The hook 1 hooks the bearing on the shaft from opposite sides at the same time, which can prevent the hook 1 from falling off the edge of the bearing, and ensure the smooth removal of the bearing.

[0038] The pulling shaft 21 and the pulling sleeve 22 are provided with mutually matching threads, and the pulling sleeve 22 can be conveniently driven to move along the pulling shaft 21 by rotating the pulling shaft 21, which is convenient to operate. In this embodiment, the pulling shaft 21 is also provided with a handle 211.

[0039] Example 2

[0040] Figure 4 A second embodiment of the bearing puller is shown. Figure 4 As shown, the bearing puller of the second embodiment is basically the same as the embodiment 1, and the similarities are not repeated here. The difference is that the pull rod 11 is provided with three connection holes 111, and the three connection holes 111 are evenly distributed along the axial direction of the pull rod 11. The fixing bolts 4 are inserted into different connection holes 111, and the axial distance between the front end of the pulling shaft 21 and the hook 1 can also be conveniently adjusted. Among them, the connection holes 111 on the pull rod 11 can also be selected according to actual needs. Other quantities of not less than 2.

[0041] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A bearing puller for disassembling a bearing, characterized in that: A pulling mechanism is provided with a hook claw and a pulling mechanism for driving the hook claw to move; the pulling mechanism is provided with a pulling shaft and a pulling sleeve, and the pulling sleeve is movably sleeved on the pulling shaft; a pulling rod and an adjusting rod are provided between the hook claw and the pulling sleeve, and the adjusting rod is detachably installed at the rear of the pulling rod; the rear end of the adjusting rod is hung on the pulling sleeve, and the hook claw is provided at the front end of the pulling rod.

2. A bearing puller according to claim 1, characterized in that: A fixing bolt and a fixing nut are provided at the connection between the pull rod and the adjusting rod, and the fixing nut is screwed onto the fixing bolt; the fixing bolt passes through the pull rod and the adjusting rod, and both the pull rod and the adjusting rod have connecting holes that are compatible with the fixing bolt.

3. A bearing puller according to claim 2, characterized in that: The pull rod is provided with a plurality of the connection holes, and the plurality of the connection holes are evenly distributed along the axial direction of the pull rod.

4. A bearing puller according to claim 3, characterized in that: The pull rod is provided with three connecting holes.

5. A bearing puller according to claim 4, characterized in that: An orientation mechanism is provided between the pull rod and the adjusting rod. The orientation mechanism is provided with an orientation slot and an orientation block. The shapes of the orientation slot and the orientation block are adapted to each other. The orientation slot is provided on the adjusting rod, and the orientation block is provided on the pull rod.

6. A bearing puller according to any one of claims 1 to 5, characterized in that: A hanging rod is arranged on the outer side of the pulling sleeve, and the hanging rod is arranged along the radial direction of the pulling sleeve. A hook hole is arranged at the rear end of the adjusting rod, and the hook hole is in the shape of an oblong hole.

7. A bearing puller according to claim 6, characterized in that: The hanging rod is provided with a left hanging rod and a right hanging rod, and the left hanging rod and the right hanging rod are arranged opposite to each other; and two of the pulling rod and the adjusting rod are also provided.

8. A bearing puller according to any one of claims 1 to 5, characterized in that: Mutually matching threads are arranged between the drawing shaft and the drawing sleeve.

Images