The key components of the full hydraulic steering gear are the steering headlight valve, cycloidal needle wheel clutch pair Micro cycloidal hydraulic motor The linkage shaft, shift pin, spring and the product are composed. It is composed of valve core, valve sleeve and oil path plate to rotate the steering lamp valve and control the direction of the oil drain. The valve core of the full hydraulic steering gear is immediately connected to the steering column of the automobile steering wheel. The motor rotor and motor stator form a pair of internal gear, namely the cycloidal needle gear gear gear pair, which can measure and verify the effectiveness of the motor when driving power steering, Radial plunger hydraulic motor Ensure that the residual oil flowing to the steering hydraulic cylinder is positively related to the corner of the automobile steering wheel, which is equivalent to the electric oil pump during manual steering, and connects the motor rotor and the connecting shaft and shift pin of the valve sleeve; Wholesale of cycloidal hydraulic motors Ensure that the valve sleeve is in step with the motor rotor during the driving force steering, and transmit the torque during the manual steering. The function of the spring is to ensure that the return of the steering headlight valve is negatively correlated when the steering is not turned. The product in the middle of the oil inlet and return port sucks the oil in one chamber of the steering hydraulic cylinder into the oil inlet through the return port during the manual steering, and then presses it into another chamber of the hydraulic cylinder according to the cycloidal needle gear teeth, When the driving force turns, ensure that the hydraulic oil does not flow into the T port immediately from the P port.