Steam turbine cylinder joint surface gap repairing device

The utility model provides a steam turbine cylinder joint surface gap repairing device. Comprising a main body, a partition plate, a cylinder body, a flange, a fixing hole, a shell, a discharging net, a guide groove, a side plate, a screening plate, a storage box, a bottom plate, a sliding block, a plate body, a pressing block, a spring, an inner pressing base, a vibration motor, a rubber pad, a transmission rod, a protective shell, a base, a polishing layer, a grinding layer, a repairing roller, a protective shell, a motor, a connector, a connecting plate, a telescopic column, a hydraulic cylinder, a limiting plate and a base body. A partition plate is installed on the lower side of the front end of the main body, a fixing hole is formed in the flange, a discharging net is installed at the upper end of the inner side of the shell, and a motor is installed on the inner side of the protective shell. And metal crushed materials in the chamber grinding process can be recycled, and the repairing effect of the cha