A method for controlling the counterweight system of a knuckle-arm crane
A control method and crane technology, applied in cranes and other directions, can solve the problem of inability to adjust the position of the counterweight, and achieve the effects of reducing the number of counterweight plates, preventing overload and overturning, and accelerating the lifting speed.
Active Publication Date: 2019-12-06
江苏宏昌天马物流装备有限公司
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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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[0060] As shown in the figure, the present invention is a counterweight system of a folding-arm crane. The folding-arm crane 2 is arranged on a carrier vehicle 1, and several pairs of outriggers 11 are arranged on the carrier vehicle. The folding-arm crane includes a boom 21. A hook is provided at the head end of the boom, and a counterweight device 22 is provided at the end of the boom. The counterweight device includes a bracket 221 and a counterweight mechanism 222 movable on the bracket. The bracket 221 is fixedly located at the end of the boom of the knuckle-arm crane;
[0061] The counterweight mechanism includes a counterweight 2221 and a telescopic mechanism 2222 that drives the counterweight to move. The telescopic mechanism is arranged in the support, and a guide rail groove 2211 is provided in the support 221. The guide rail groove The guide rail 2212 is engaged inside, one end of the guide rail is connected with the telescoping mechanism 2222 , and the counterweigh...
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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....
Claims
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IPC IPC(8): B66C23/72
CPCB66C23/72
Inventor 李文峰田兴明于少萌薛小兵柴峰涛
Owner 江苏宏昌天马物流装备有限公司