High-rotating-speed three-disc return stroke structure

The utility model belongs to the technical field of transmission, and discloses a high-rotating-speed three-disc return stroke structure which comprises a plunger, a sliding shoe, a return stroke disc, a transition disc and a wear-resisting disc, the ball head end of the plunger is arranged in a ball head seat of the sliding shoe, the rear end of the ball head seat of the sliding shoe is a disc-shaped sliding shoe bottom face, the return stroke disc is of a circular ring structure, nine evenly-distributed holes are formed in the return stroke disc, and the wear-resisting disc is arranged in the transition disc. An assembly consisting of nine plungers and sliding shoes is arranged in nine holes of the return plate; the wear-resisting disc is of a circular ring structure, the bottom faces of the nine sliding shoes are evenly distributed on the wear-resisting disc, and the transition disc is arranged between the wear-resisting disc and the return disc. And the return disc, the transition disc and the wear-resist