Hydraulic main clutch mechanism of rear engine

The utility model provides a hydraulic main clutch mechanism of a rear engine, and relates to the field of clutch mechanisms. Comprising a machine body, the right side of the front side surface of the machine body is fixedly connected with a supporting frame, the lower side of the front side surface of the machine body is rotationally connected with a middle wheel through a first rotating shaft, and the right side of the lower side of the front side surface of the machine body is rotationally connected with a driving rotating wheel through a second rotating shaft; a pinch roller is arranged on the upper side surface of the triple belt, a connecting frame is arranged above the pinch roller, and the front side and the rear side of the inner wall of the connecting frame are jointly and rotationally connected with the inner wall of the pinch roller through a third rotating shaft. The belt pressing wheel is arranged to press the triple belt, so that the phenomenon that the triple belt is loosened due to long-time