Tower crane and its jacking self-balancing control system and control method

Abstract

The invention discloses a lifting-up self-balance control method of a tower crane. The control method is used for controlling balance of the tower crane during a lifting-up section-adding process of the tower crane. The control method includes following steps: obtaining an unbalance moment of a climbing bracket of the tower crane, calculating a balance position of a lifting trolley of the tower crane and moving the lifting trolley to the balance position. The invention also provides a lifting-up self-balance control system of the tower crane and the tower crane having the lifting-up self-balance control system. By means of the tower crane, the lifting-up self-balance control system and the control method thereof in the invention, the balance of the tower crane can be automatically and accurately adjusted.

Description

technical field [0001] The invention relates to the field of construction hoisting machinery, and in particular to a tower crane and its jacking self-balancing control system and control method. Background technique [0002] Tower crane, referred to as tower crane, also known as tower crane, is a kind of lifting equipment used in building construction. The performance advantages of tower cranes in terms of lifting height and working range make them widely used in high-rise building construction. [0003] Due to the characteristics of high-altitude operation of tower cranes, there are many factors that induce safety accidents. In the process of installation, use, and dismantling of large tower cranes, the level of safety technology management and operators is extremely high, and a little carelessness will cause serious accidents. Judging from the safety accident cases of tower cranes that have occurred in my country in recent years, the accidents mainly occurred during the ...

AI Technical Summary

Problems solved by technology

Even so, in the jacking process of existing tower cranes, especially extra-large tower cranes, due to the gap between the actual weight of each component and the theoretical weight, the weight error of the trim weight, and the position error of the lifting trolley, etc. It is easy to cause misjudgment by the operator, and the center of gravity of the lifted part is not at the center of the resultant force of the oil cylinder, so that the climbing frame of the tower crane is unbalanced during the jacking process, resulting in unstable jacking and jointing, and in severe cases, tower cranes The tipping of the crane caused a major safety accident

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