Hydraulic cycloid motor

The invention discloses a hydraulic cycloid motor. The hydraulic cycloid motor comprises a stator, a rotor and a variable control assembly; a rotating hole penetrating left and right is formed in thestator; the stator is fixedly provided with a connecting block at the right end of the rotating hole; a shaft hole and a valve hole are formed in the connecting block; the connecting block is fixedlyprovided with a right end cover at the right end of the valve hole; a pintle valve is rotationally connected into the valve hole, and an output shaft extending out of the right end cover is arranged at the right end of the pintle valve; a port A and a port B are formed in the outer side of the connecting block; a first annular groove and a second annular groove are formed in the outer side of thecircumference of the pintle valve; a plurality of needle teeth are arranged on the inner side wall of the rotating hole, an d the rotor is eccentrically arranged in the rotating hole and makes contactwith the needle teeth; when