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Device for drawing internal and outernal ring of bearing

A puller, inner and outer ring technology, applied in the field of machinery, can solve the problems that the disassembly device cannot be used normally, the bearing outer ring cannot be disassembled, and the working reliability is low, and achieves the effects of simple structure, low cost, and high use reliability.

Inactive Publication Date: 2012-10-17
张银根
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the through hole 1 on the sleeve and the through hole 2 on the jacket must be larger than the through hole 1, and the processing requirements are cumbersome.
[0006] At the same time, the ball is easy to get stuck in the process of rotating the jacket, which causes the disassembly device to be unable to use normally, and its working reliability is not high
In addition, the dismounting device can only disassemble the inner ring of the bearing installed on the shaft, and cannot disassemble the outer ring of the bearing installed in the bearing seat

Method used

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  • Device for drawing internal and outernal ring of bearing
  • Device for drawing internal and outernal ring of bearing
  • Device for drawing internal and outernal ring of bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 with figure 2 As shown, the bearing inner and outer ring puller is used to disassemble the bearing outer ring 9 installed in the bearing seat 6. It includes a cylindrical body 1, a screw 2, a slider seat 3, a slider 4, and a bush 5. .

[0030] There is a threaded hole through the middle of the main body 1, and the screw rod 2 is connected in the threaded hole. The inner end of the screw 2 is a sharp corner 21, and the outer end is a regular hexagon. The operator can hold the regular hexagonal part at the outer end of the screw 2 to rotate the screw 2.

[0031] A slider seat 3 is fixedly connected to the end of the main body 1, and the slider seat 3 is cylindrical. In this embodiment, in order to facilitate processing, the main body 1 and the slider seat 3 adopt an integrated structure. Six through holes 31 are uniformly opened on the outer side of the slider base 3, and a slider 4 is installed in each through hole 31. In this embodiment, the slider 4 use...

Embodiment 2

[0036] The principle and structure of this embodiment are basically the same as those of the first embodiment. The difference is that the diameter of the through hole 31 at the inner and outer sides of the slider seat 3 is slightly smaller than the outer diameter of the ball. The bushing 5 is directly sleeved on the outside of the slider base 3. In this embodiment, in order to prevent the bushing 5 from falling off, a stop edge 32 is provided at the bottom of the slider base 6 to block the bushing 5.

[0037] When in use, the slider seat 3 is sleeved on the inner ring 8 of the bearing. When the through hole 31 corresponds to the annular groove on the inner ring 8 of the bearing, the bushing 5 is lowered. The bushing 5 squeezes the sliding block 4 so that the sliding block 4 partially protrudes from the inner side of the through hole 31, and the partially extended sliding block 4 is clamped in the annular groove of the bearing inner ring 8. At this time, when the screw 2 is rotat...

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PUM

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Abstract

A pull-out device for internal and external rings of bearing is composed of a cylindrical main body, a screw bolt passing through said main body and coupled to main body via spiral threads, a cylindrical slide block seat fixed to the end of main body and with several through holes and an external diameter slightly less than the internal diameter of the external ring of bearing, several slide block in said through holes on slide block seat, and a lining sleeve of main body, whose end can be inserted in slide block seat to project slide blocks out of the slide block seat.

Description

Technical field [0001] The invention belongs to the technical field of machinery, and relates to a manual disassembly tool, particularly a puller used for disassembling the inner ring or the outer ring of a bearing. Background technique [0002] At present, in mechanical maintenance operations, especially in the maintenance of various vehicles and internal combustion engines, bearing damage is often encountered. Because the bearing and the shaft or the bearing seat have an interference fit, it is difficult to disassemble the bearing, and the disassembly effect is often not good. For example, after the inner ring of the bearing and the balls are removed, the outer ring of the bearing is left connected in the bearing seat, which causes great inconvenience to the maintenance work. [0003] In order to disassemble the remaining inner or outer ring of the shaft, the common method is to use oxygen cutting, and then take it out after cutting. Obviously, this is time-consuming and labori...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B27/06
Inventor 张银根
Owner 张银根