Control method and device for preventing engineering machine from overturning, and engineering machine

Abstract

The invention discloses a control method and device for preventing an engineering machine from overturning, and an engineering machine. The method comprises the following steps of: obtaining the positions of all supporting legs of the engineering machine and the supporting force of all the supporting legs; obtaining the gravity of the whole machine according to the supporting force of each of the supporting legs; calculating out the center-of-gravity position of the whole machine according to moment equilibrium; determining the overturning side; obtaining a safety coefficient according to the corresponding relation between the moment from the chassis of the whole machine to the overturning side and the moment from the center of gravity of the whole machine to the overturning side; and locking the engineering machine when the safety coefficient is smaller than the minimum value of the set range value. The method disclosed by the invention has the beneficial effects that the safety coefficient is obtained in real time, and whether the engineering machine can overturn or not is judged through the comparison of the safety coefficient and the set range value, so that the engineering machine can be detected in real time; in addition, whether the engineering machine can overturn or not can also be judged when the supporting legs are not completely unfolded, so that the safety of the engineering machine is improved.

Description

technical field [0001] The invention relates to the technical field of anti-tipping of construction machinery, in particular to a control method, a control device and construction machinery for anti-tipping of construction machinery. Background technique [0002] Hydraulic outrigger construction machinery equipment, such as concrete pump trucks, truck cranes, high-altitude fire ladders, aerial work vehicles, etc., use outriggers to support the ground to form the largest safe operating area, and then extend the multi-section boom system to move the load Delivered to the target location. [0003] Accidental tipping of construction machinery and equipment poses a huge threat to equipment and personnel. There may be several reasons for this: the center of gravity of the structure is seriously shifted due to overload and other reasons during operation, the operation exceeds the safe operation area when the outriggers are not fully opened, The outriggers are unevenly loaded due t...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the design of construction machinery equipment is to ensure the maximum operating capacity of the equipment by fully extending the outriggers. However, due to the limitation of the site, the outriggers cannot be fully opened and can only rely on the operator's judgment or specific support. ways to work safely

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