Steel bar planting hole drilling device for shield tunneling machine duct piece and repairing method

The invention provides a steel bar planting hole drilling device for a shield tunneling machine segment and a repairing method, and belongs to the technical field of shield segment repairing. The device comprises a sliding mechanism, a lifting mechanism and a drilling platform, two sets of drilling mechanisms are symmetrically arranged on the drilling platform, each set of drilling mechanism is provided with a plurality of drill rods facing the outer side, each drilling mechanism comprises a rotating synchronizing mechanism and a feeding synchronizing mechanism, the rotating synchronizing mechanisms enable the drill rods to rotate around the axes of the drill rods, and the feeding synchronizing mechanisms enable the drill rods to drill along the axes of the drill rods. Through the lifting mechanism and the sliding mechanism, the whole drilling platform can slide along the circumference of a tunnel to drill holes in different angles, and meanwhile, the whole drilling platform can ascend and descend in the radi