NOVEL AXIAL PISTON PUMP

摘要

An axial piston pump, comprising an end cover (15), a front cover (9), a pump shaft (10) provided within the front cover (9), a back cover (4), a swashplate (17) and a cylinder body (8) installed inside the back cover (4). The end cover (15), the front cover (9), and the back cover (4) and the cylinder body (8) are fixedly connected in sequence. One end of the pump shaft (10) facing away from the cover is connected to swashplate (17). The piston pump is further provided therein with a cross-shaped wobble plate (18) and a piston module (13). The cylinder body (8) is provided therein with a piston hole, a valve hole, a pressing output valve group (12) and a pressing input valve group. The pressing output valve group (12) and the pressing input valve group are disposed within the valve hole. One end of the piston module (13) is inserted in the piston hole, and another end of the piston module (13) is connected to the cross wobble plate. The piston pump, by providing a slipper plate, inserts and integrates a return plate and a slipper, and a slipper and a piston ball head of the prior art, decreasing a lateral force of the cylinder body and piston seat, increasing the tilt angle of a swashplate, increasing the return distance of the piston seat, increasing piston pump displacement, improving piston pump efficiency and further simplifying cylinder body design.