Engineering machinery anti-tilting control method, device and engineering machinery

Abstract

The invention provides an engineering machinery anti-tilting control method and device and engineering machinery, and belongs to the field of engineering machinery. The engineering machinery comprisesfour supporting legs, the anti-tilting control method comprises the following steps that the back force of the supporting legs of four supporting legs of the engineering machinery is detected; the anti-tilting threshold value is calculated according to the safety margin coefficient of the engineering machinery and the maximum set supporting leg counter force of the four supporting legs; and the operation action of the adjusting posture of the engineering machinery is controlled according to the supporting leg counter force of the four supporting legs and the anti-tilting threshold value. Theanti-tilting control method of the engineering machinery, device and the engineering machinery can accurately realize the anti-tilting safety protection of the engineering machinery under any posture.

Description

technical field [0001] The invention relates to engineering machinery, in particular to an anti-overturning control method and device for engineering machinery and engineering machinery. Background technique [0002] Many construction machinery need to use support mechanism to realize the support during work, so as to avoid the side tipping of construction machinery caused by excessive load during operation. The supporting mechanism generally includes four outrigger devices, that is, two front outrigger devices and two rear outrigger devices, and each outrigger device has two states of retracting and unfolding. When the construction machinery needs to move, each outrigger device can be retracted to facilitate the transition of the construction machinery; when the construction machinery is in the construction state, the outrigger device can be expanded to realize the support of the construction machinery. [0003] The outrigger type construction machinery is widely used in v...

AI Technical Summary

Problems solved by technology

The root of this scheme is how to accurately and truly detect the reaction force of each outrigger, while the outrigger pressure detection method used in the existing scheme is to install a single pressure sensor in the rodless chamber of the outrigger cylinder. When there is a large back pressure in the rod chamber , the detected pressure deviates greatly from the actual outrigger back pressure

In addition, when the outriggers are fully extended, the detection pressure is the overflow pressure of the system, not the real back pressure of the outriggers at this time, and there is a greater deviation

At the same time, in the control strategy adopted by the existing scheme, the detection error caused by factors such as the friction force of the oil cylinder is not considered

And the control mode is single, which cannot meet the flexible operation requirements of construction machinery and equipment

Therefore, the existing technical solutions have problems such as poor safety protection accuracy, single control strategy, and low intelligence.

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