Polishing equipment for polysulfide sealant at abutted seam of precast beam

The invention discloses polishing equipment for a polysulfide sealant at a precast beam abutted seam, and relates to the technical field of precast beam abutted seam construction. The polishing equipment comprises a machine body, a cavity is formed in the machine body, a motor is installed in the cavity, and a sliding hole is formed in the end face of an output shaft of the motor; a lifting rod and a driving rod are slidably arranged in the cavity in the vertical direction, one end of the lifting rod is slidably installed in the sliding hole, a limiting strip is fixedly connected to the lifting rod, a limiting groove allowing the limiting strip to slide is formed in the inner wall of the sliding hole, a grinding disc is installed at the other end of the lifting rod, and a through groove allowing the grinding disc to stretch out is formed in the bottom face of the machine body; the through groove is communicated with the cavity, one end of the driving rod is fixedly connected with a connecting ring, an annular