Servo oil cylinder hydraulic control system

Abstract

The invention discloses a servo oil cylinder hydraulic control system, and belongs to the field of maritime crane hydraulic technologies. The servo oil cylinder hydraulic control system comprises a motor, a main pump, a control pump, a hydraulic oil tank, a servo valve, a servo oil cylinder, a control module and a detection module, wherein the detection module is used for detecting the real-time position of a target object on the sea surface and sending the real-time position of the target object to the control module, and the control module is used for determining the moving direction and themoving distance of the target object according to the real-time position, which is sent by the detection module, of the target object and outputting corresponding control instructions to a main valveelement and a power-off automatic centering electromagnetic reversing valve according to the moving direction and the moving distance of the target object, so that a piston rod in the servo oil cylinder can be controlled to drive an external load for grabbing the target object to move along with the target object, the external load can automatically follow and grab the target object, and a closed-loop control system is formed. The hydraulic control system is high in reliability, and reduces the possibility of crashing the target object.

Description

technical field [0001] The invention relates to the technical field of marine crane hydraulics, in particular to a servo cylinder hydraulic control system. Background technique [0002] The marine environment is complex. In order to grab the targets on the sea, usually the cranes on the deck of the ship can only be used to grab them when the weather is good. [0003] Generally, each action of the crane adopts open-loop control. That is, when grabbing the target on the sea surface, the operator judges and estimates the subsequent movement state of the target object according to the up and down motion state of the target object on the sea surface, combined with his own experience, and at the same time quickly manually operates the handle to control the crane to perform corresponding actions , to follow and grab the target. [0004] However, the above methods have high professional requirements for operators. When the waves are large, it is often difficult to accurately grasp...

AI Technical Summary

Problems solved by technology

[0004] However, the above methods have high professional requirements for operators. When the waves are large, it is often difficult to accurately grasp the target, and may even damage the precious and precise target, which poses a certain safety risk.

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