METHOD AND SYSTEM FOR CONTROLLING ROTARY MOVEMENT OF ROTARY CRANE

摘要

Provided are a method and system for controlling rotary movement of a rotary crane, to solve the problems in the prior art that the control effect is undesirable when the rotary jitter of the rotary crane is to be alleviated, the power utilization efficiency is low, and the equipment cost is increased. The method comprises: when a crane is in rotary movement, recording current values input into an electromagnetic valve of a rotary pump, and detecting the current pressure of a rotary system; and comparing the current pressure of the rotary system with a pump standard pressure, corresponding to the current values, of the crane to obtain a pressure difference, and when the pressure difference exceeds a preset value, performing pressure compensation on a hydraulic system in rotary movement. This solution helps to improve the control effect on the rotary movement of the crane, achieve high power utilization efficiency, and reduce the rotary jitter.