Lifting system

The invention discloses a lifting system and belongs to the technical field of machinery. The lifting system comprises a mounting frame and a plurality of lifting units, all the lifting units are fixedly mounted on the mounting frame in the length direction of the mounting frame, and each lifting unit comprises a power mechanism, a decelerator and an output mechanism. As for any lifting unit, theoutput ends of the power mechanisms are connected with the input ends of the decelerators, the output ends of the decelerators are connected with the input ends of the output mechanisms, and the output mechanisms are fixedly mounted in the mounting frame. Output gears for driving lifting racks are arranged at the output ends of the output mechanisms. The output gears and the decelerators are located on the two opposite sides of the mounting frame correspondingly, gravity baffles and torsional blocks are arranged on the outer walls of the decelerators at intervals, and the gravity baffles and the torsional blocks are v