Anti-rollover system and method for lorry-mounted crane

Abstract

The invention belongs to the field of engineering machinery, and particularly relates to an anti-rollover system and method for a lorry-mounted crane. The anti-rollover system comprises a support legstate monitoring system, an axle state monitoring system, an anti-rollover controller and a support leg hydraulic cylinder telescopic control valve, and is characterized in that pressure information detected by front side support leg pressure sensors and rear side support leg pressure sensors is transmitted to the support leg state monitoring system; displacement information detected by front axledisplacement sensors and rear axle displacement sensors is transmitted to the axle state monitoring system; the support leg state monitoring system and the axle state monitoring system separately transmit the pressure information and the displacement information to the anti-rollover controller; and the anti-rollover controller performs data treatment and drives the support leg hydraulic cylindertelescopic control valve to drive oil cylinders corresponding to different vertical support legs, so that stress states of the different vertical support legs and lorry posture are adjusted. By adopting the anti-rollover system and method, initiative anti-rollover of the lorry-mounted crane can be realized automatically and safely.

Description

technical field [0001] The invention belongs to the field of construction machinery, and in particular relates to an active anti-tipping system and method for a truck-mounted crane. Background technique [0002] As one of the special vehicles, the truck-mounted crane is to install the lifting operation mechanism on the heavy-duty truck. Because of its unique advantages of lifting, loading, and maneuverability, it is widely used in transportation, civil engineering, electric power, telecommunications, field With the rapid development of the national economy and the rapid improvement of people's living standards in fields such as operation, stone industry and wharf, manual labor is gradually replaced by mechanized labor, which brings greater market demand for truck-mounted cranes. [0003] The country has increasingly stringent requirements for construction safety and higher requirements for the safety performance of truck-mounted cranes. Relevant laws have clearly stipulated ...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the anti-tipping measures for truck-mounted cranes are to judge whether it is in a safe state by detecting the pressure of the hydraulic outrigger cylinder, the interaction force between the vertical outrigger and the ground, or judge whether it is in a safe state based on the torque limiter. Most of the anti-tipping methods mentioned are to control the hoisting system on the car to stop the movement, send an alarm to deal with the dangerous state of the truck-mounted crane, and rarely propose further active anti-tipping measures to improve the safety of the truck-mounted crane

Control the hoisting system on the vehicle to stop movement, send an alarm, etc. to deal with the dangerous state of the truck-mounted crane. The degree of automation and safety is low, and there is a risk of misoperation, which belongs to passive anti-rollover

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