Dual-purpose assembling and disassembling tool for motor bearing and bearing assembling and disassembling method

Abstract

The invention relates to a dual-purpose assembling and disassembling tool for a motor bearing and a bearing assembling and disassembling method. The dual-purpose assembling and disassembling tool comprises a bottom plate, and a front vertical plate and a back vertical plate arranged on the bottom plate. A manual hydraulic jack is mounted on the front vertical plate, a middle vertical plate is arranged between the front vertical plate and the back vertical plate on the bottom plate, a penetrating inner thread hole for mounting the manual hydraulic jack is formed in the front vertical plate, anouter thread is arranged on the excircle of a shell of the manual hydraulic jack, the excircle of the shell of the manual hydraulic jack is mounted in the inner thread hole through the outer thread, atelescopic head of the manual hydraulic jack faces the direction of the back vertical plate, a blind hole for positioning and jacking one end of a motor shaft is formed in the front end surface of the telescopic head, a jacking head for jacking the other end of the motor shaft is arranged on the back vertical plate, and a U-shaped open slot for embedding the neck of the motor shaft is formed in the middle vertical plate. The dual-purpose assembling and disassembling tool provided by the invention improves the bearing assembling and disassembling efficiency and guarantees the assembling and disassembling quality.

Description

technical field [0001] The invention relates to the technical field of bearing assembly, in particular to a dual-purpose tool for assembling and disassembling motor bearings and a method for assembling and disassembling the bearings. Background technique [0002] Bearings are installed on the journals at both ends of the motor shaft (also known as the motor rotor). When the motor shaft is being repaired, the bearings at both ends need to be removed and replaced with new ones. [0003] The assembly and disassembly of the bearing on the motor shaft in the prior art has the following problems: [0004] One is that the bearing assembly is usually carried out after heating the bearing with a heater. During the installation process of the bearing, because the bearing is small and dissipates heat quickly, it is easy to get stuck halfway, resulting in rework and roughening of the journal, which not only reduces the efficiency of assembly, It also reduces the quality of product ass...

AI Technical Summary

Problems solved by technology

[0004] One is that the bearing assembly is usually carried out after heating the bearing with a heater. During the installation process of the bearing, because the bearing is small and dissipates heat quickly, it is easy to get stuck halfway, resulting in rework and roughening of the journal, which not only reduces the efficiency of assembly, It also reduces the quality of product assembly and leads to waste of materials and increased costs

[0005] The second is that during the disassembly process of the bearing, the puller is used for disassembly, which requires 2-3 people to cooperate with the operation. During the operation, misalignment and slippage are prone to occur, and a wrench is used to rotate the screw and withstand the motor shaft. During the operation, the rotor shaft head is subjected to uneven force, which easily deforms and bends the rotor shaft. On the one hand, the disassembly efficiency is extremely low, and on the other hand, the quality of the product is also reduced.

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