Tipping warning device of automobile crane

Abstract

The invention discloses a tipping warning deice of an automobile crane, which comprises a plurality of oil pressure sensors (1) matched with the number of supporting legs, an analog quantity input circuit (2), a microprocessor (3) and a warning indicator (4), wherein an input end of the analog quantity input circuit (2) is connected with an output end of each oil pressure sensor (1), an output end of the analog quantity input circuit (2) is connected with an A / D module of the microprocessor (3), and the microprocessor (3) is connected with the warning indicator (4) to integrally form the tipping warning device. The tipping warning device detects the bearing reaction condition of each supporting leg of the automobile crane in real time to judge the tipping risk degree of the automobile crane, and warn an operator in time when the automobile crane is confirmed to be in a tipping dangerous condition so that the operator has time to eliminate tipping dangers by an operating method.

Description

technical field [0001] The invention relates to an early warning device, in particular to an early warning device for an automobile crane tipping over. Background technique [0002] Crane truck is a car that installs lifting equipment on a car or a special chassis to complete the task of loading and unloading goods or hoisting building components. It is widely used in transportation, construction projects, etc., especially suitable for scattered goods, narrow sites, and high lifting heights. construction site. In order to expand the load-bearing surface and load-bearing strength of the truck crane and increase the stability during operation, the truck crane uses outriggers to support the truck crane on a solid ground. Truck cranes with a simple structure use mechanical devices and visual inspection methods to determine the inclination angle of the arm stem, the length of the arm stem, and the working radius, and check the actual lifting weight by consulting the rated liftin...

AI Technical Summary

Problems solved by technology

Truck cranes with a simple structure use mechanical devices and visual inspection to determine the inclination angle, length of the arm stem, and working radius, and check the actual lifting capacity by consulting the rated lifting capacity table. The error is relatively large, and it is easy to cause a tipping accident.

Imported relatively advanced truck cranes have fully automatic overload prevention devices, but the structure is complex, the cost is high, and it will still be affected by the unevenness of the road surface

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