Blade-rotated hydraulic steering engine

Abstract

The invention discloses a blade-rotated hydraulic steering engine, and belongs to the field of steering engines. The blade-rotated hydraulic steering engine comprises a first motor, a control unit, afirst hydraulic pump, a first driving loop, a first oil feeding loop, an oil replacing unit, an oil tank, a steering engine oil cylinder and blades; the control unit is used for controlling the rotating direction and the rotating speed of the first motor; the first hydraulic pump is used for adjusting the output direction and the displacement of hydraulic oil according to the rotating direction and the rotating speed of the first motor; the first driving loop is connected with the first hydraulic pump and the steering engine oil cylinder; the first oil feeding loop comprises a first oil feeding branch and a first return branch; the first oil feeding branch is connected with the first hydraulic pump and the oil tank, and is used for feeding the oil with a first flow in the oil tank into thefirst hydraulic pump; and the oil replacing unit is connected with the steering engine oil cylinder and the first return branch, and is used for returning the hydraulic oil with the first flow discharged by the steering engine oil cylinder during driving rotation of the blades to the first return branch.

Description

technical field [0001] The invention relates to the field of steering gear, in particular to a rotary vane hydraulic steering gear. Background technique [0002] The device that uses hydraulic oil as the working medium to make the ship turn the rudder and maintain the rudder position is called a hydraulic steering gear. The working principle of the hydraulic steering gear is that the pump outputs high-pressure oil driven by the motor to drive the rudder blades to rotate. According to the different steering control methods of the steering gear, the hydraulic steering gear can be divided into a valve-controlled hydraulic steering gear and a closed hydraulic steering gear. The difference between the two is that the valve-controlled hydraulic steering gear controls the direction of the high-pressure oil output by the pump through the reversing valve, and then realizes the reversing operation of the rudder blade; the closed hydraulic steering gear controls the forward and revers...

AI Technical Summary

Problems solved by technology

[0003] In the process of realizing the present invention, the inventor found that the prior art has at least the following problems: in the closed hydraulic steering gear, because the pump self-priming ability is poor and the displacement is small, it is only suitable for small steering gears, and the closed hydraulic steering gear The entire hydraulic system of the hydraulic steering gear is a closed loop, and the heat generated by the steering gear gradually accumulates, which affects the performance of the steering gear

Images