Auxiliary tool for disassembling and assembling valve shaft

The utility model discloses an auxiliary tool for valve shaft disassembly and assembly, which belongs to the technical field of valve shaft disassembly and assembly tools, and comprises a device body, a telescopic mechanism and a transmission mechanism, an installation cavity is arranged in the device body, the telescopic mechanism is arranged in the installation cavity, fixing grooves are symmetrically arranged on one side of the installation cavity, and pull blocks are movably arranged in the fixing grooves. Transmission mechanisms are arranged on the two sides of the pull block. Through the structural design of the pull block, the fixing groove and the transmission mechanism, the valve shaft can be pulled out quickly, operation is easy, working efficiency is high, maintenance personnel can carry out maintenance work better, and the problem that in the process of dismantling the valve shaft by means of a chain block, the maintenance personnel discover that the valve shaft is damaged due to limitation of sit