Hoist and mount maintenance unit of dynamometer machine

The utility model relates to a hoist and mount maintenance unit of dynamometer machine for the operating repairs of dynamometer machine, the device be including lifting by crane the frame and set up the fixed dolly on lifting by crane the frame, the frame that lifts by crane include U type main frame, set up the hoist on U type main frame crossbeam and set up the gimbaled wheel in two stands bottoms of U type main frame, fixed dolly be connected with the hoist. Compared with the prior art, the utility model has the advantages of simple structure, with low costs, the operation reliably, maintain simultaneously, raise the efficiency.