Lifting device for main shaft bushing

Abstract

The invention discloses a lifting device for a main shaft bushing. The lifting device comprises a screw rod, a groove-shaped lifting socket and a bushing block, the groove-shaped lifting socket is provided with an opening groove with a downward opening, the width of the opening groove is in clearance fit with the distance between the two side faces of a main shaft bushing cover, two screw holes penetrating through the groove walls are formed in the symmetrical groove walls of the groove-shaped lifting socket correspondingly, screws are mounted in the screw holes, the ends of the screws are matched with transverse grooves in the side face of the main shaft bushing cover correspondingly, the top end of the screw rod is provided with a lifting ring, the bottom end of the screw rod is fixedlyconnected with the center part on the bushing block, the screw rod penetrates through the center of the groove-shaped lifting socket, a handle mounting ring is arranged on the upper part of the screwrod, and three handles are mounted on the handle mounting ring. The main shaft bushing cover is conveniently lifted away from a device body or conveniently lifted into the device body, generated ironscrap is cleared in time, operation is safe, the time and labor are saved, and the overhauling progress is accelerated.

Description

technical field [0001] The invention belongs to the technical field of fixtures, in particular to a main bearing bush hoisting device. Background technique [0002] During engine maintenance, it is necessary to hoist the diesel engine off the car and disassemble its various parts. When the main bearing bush and crankshaft are overhauled, the main bearing bearing cover needs to be dismantled and taken out by hand. Landing and handcuffing accidents often occur, which is time-consuming and laborious, which affects the maintenance progress. . During the production process of the engine, the main bearing shell needs to be pressed into the arc-shaped groove of the main shaft cover through a press-fitting device. During this process, some iron chips will be scraped out by the friction between the main bearing shell and the main shaft cover. After manually cleaning these iron chips During the operation, the iron filings are easy to fall into the inner surface of the main bearing bu...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a main bearing bush lifting device, so as to overcome the defects of main bearing and crankshaft journal strain caused by iron filings produced in the lifting / pressing process in the prior art, and conveniently remove the main bearing cover from the diesel engine. Body, safe operation, save time and effort, improve maintenance progress

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