Folding arm-type crane counterweight system and control method thereof

Abstract

The invention relates to a folding arm-type crane counterweight system and a control method thereof, and relates to the field of engineering machinery, in particular to the improvement of a crane counterweight device. A position of a counterweight block can be adjusted in real time according to the actual use condition, so that a lifting moment can be adjusted in real time. A folding arm-type crane is arranged on a carrying cart; multiple pairs of support legs are arranged on the carrying cart; the folding arm-type crane comprises a crane jib; a lifting hook is arranged at the first end of thecrane jib; a counterweight device is arranged at the tail end of the crane jib, and comprises a support and a counterweight mechanism movably arranged on the support; the support is fixedly arrangedat the tail end of the crane jib of the folding arm-type crane; and during actual use, the position of the counterweight block is adjusted according to an actual load condition, so that the moment isadjusted actually for adapting to different loads, and the risk that the crane is toppled under a large-load condition can be effectively reduced.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to the improvement of a crane counterweight device. Background technique [0002] Knuckle-arm cranes are commonly used machinery for hoisting heavy objects in places with limited height. In order to increase the moment of the knuckle-arm crane, a counterweight is generally set at the end of the boom of the knuckle-jib crane to prevent the crane from turning over. The counterweight of the crane is set at the end of the boom and its position and weight cannot be changed, so the moment of the crane cannot be adjusted, and only objects with a fixed weight can be lifted. [0003] In response to the above problems, the State Intellectual Property Office published an invention patent application (CN105439017 A, crane) on March 30, 2016, which discloses a crane, and specifically discloses a suspension counterweight and a pushing device, and a suspension counterweight suspension setting....

AI Technical Summary

Problems solved by technology

However, the position of the counterweight can only be adjusted in advance according to the weight of the hoisted item before the hoisting starts, and the position of the counterweight cannot be adjusted in real time according to the actual situation during the hoisting process

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