Secondary grouting rack for tunnel boring machine (TBM) segmental lining support

The utility model discloses a TBM (tunnel boring machine) segment lining support secondary grouting rack, which belongs to the technical field of shield and TBM subway tunnel construction and comprises a base, a first fixing frame is arranged on the upper end face of the base, a top plate is fixedly connected onto the first fixing frame, a sliding groove is arranged on the first fixing frame, a lifting mechanism is arranged on the top plate, and the lifting mechanism is arranged on the top plate. The lifting mechanism comprises a motor, a rotating rod, a fixing block, a winding wheel and a steel cable, the steel cable is fixedly connected with a rack, the rack comprises a bottom plate, a guardrail, a protective door and a sliding block, the sliding block is provided with a brake mechanism, the brake mechanism comprises an electromagnet, an armature, a spring, a connecting rod and a friction plate, the base is provided with a grouting machine, and the grouting machine is connected with the motor. A hydraulic p