Guide sliding shoe remanufacturing method

Abstract

The invention discloses a guide sliding shoe remanufacturing method. The method comprises the following steps that a guide groove of a guide sliding shoe is machined so as to remove an original wear-resisting layer and expose a guide sliding shoe base body; a chamfer is machined at an end opening of the guide groove; wear-resisting plates are welded on the surface of the guide sliding shoe base body; a first groove matched with the chamfer is formed in the wear-resisting plate located at the position of the end opening in the length direction, and second grooves are formed in the connecting positions of the adjacent wear-resisting plates in the length direction; and stress relief annealing is conducted after welding. Compared with the prior art, the method has the beneficial effects that the grinding procedure after surfacing of the wear-resistant layer is omitted, the labor intensity of workers is reduced, the time is saved, meanwhile, the wear-resisting layer is made of the same material, the size and the wear-resisting hardness are easy to guarantee, the wear-resisting performance is enhanced, the service life is prolonged, the defects that the surface of the wear-resisting layer is uneven and uneven in hardness due to improper grinding can be avoided, the walking effect of a coal mining machine is good, and abrasion to a conveyor is reduced.

Description

technical field [0001] The invention relates to the technical field of guide shoe processing, in particular to a method for remanufacturing a guide shoe. Background technique [0002] The guide shoe is one of the important parts of the shearer. It not only bears the weight of the whole shearer, but also slides on the surface of the pin row. Therefore, the guide shoe must not only have high strength and toughness, but also Has high wear resistance. In actual use, the guide shoe is listed as one of the vulnerable parts of the shearer. Every time the shearer is overhauled, the guide shoe needs to be repaired or scrapped, which will bring adverse effects and economic losses to the coal mine production. [0003] The easily damaged part of the guide shoe is mainly the guide groove. When the wear-resistant surface of the guide groove is severely worn, it will affect the guiding performance of the guide shoe, which will cause the road wheel and the pin row to not mesh normally, whi...

AI Technical Summary

Problems solved by technology

2. There are differences between the material of the guide shoe itself and the composition of the wear-resistant electrode. Sometimes a transition layer is surfacing between the two, and the depth of the surfacing wear-resistant layer is not uniform. deep hard to control

The above two situations not only cause damage to the surface of the conveyor, but also make it difficult to control the wear cycle of the wear-resistant layer

Although the subsequent grinding of surfacing welding will improve the unevenness of the wear-resistant layer, it will affect the depth of the wear-resistant layer and reduce the strength of the wear-resistant layer after surfacing, which will affect the service life and cannot guarantee the size of the wear-resistant layer

If the wear-resistant layer after surfacing is processed by machine tools, due to the hardness limit of the wear-resistant layer, only expensive superhard alloy tools can be used, which increases the cost of remanufacturing and prolongs the cycle, which violates the original intention of saving costs and shortening time in overhaul

Images