Adjustable trolley power-taking arm, crane and use method

Abstract

The invention discloses an adjustable trolley power-taking arm, a crane and a use method. The power-taking arm comprises a power-taking arm traction part and an adjusting part, the adjusting part comprises an adjustable bracket and a cable guide frame, one end of the adjustable bracket is connected with the power-taking arm traction part, the cable guide frame is detachably installed at the otherend of the adjustable bracket, and the cable guide frame is installed on a trolley. The adjustable trolley power-taking arm replaces a traditional trolley power-taking arm, and comprises the adjustable bracket and the cable guide frame, and when the trolley cannot continue to run due to the accumulation of cable trolleys, the position of the cable guide frame on the adjustable bracket can be adjusted according to actual needs, so that on the one hand, the distance between the power-taking arm traction part and a trolley at the tail end when the trolley is in the limit position can be increased, the accumulation problem of the cable trolleys can be effectively solved, and on the other hand, the limit distance of the trolley can be reduces, the working dead zone of the trolley is reduced, and the utilization rate of the crane is greatly improved.

Description

technical field [0001] The invention relates to the technical field of cranes, in particular to an adjustable electric trolley arm, a crane and a method of use. Background technique [0002] Usually, the trolley power supply system of a crane is composed of a trolley power supply cable, a hanging cable block, a trolley track, a trolley electric arm and a drawbar. Glide left and right on the track. The electric fetching arm of the trolley is fixed on the trolley, and the traction rod is fixed on the electric fetching arm. The hanging cable block is installed on the hanging cable block track successively from the end of the main girder, and the block near the end of the main girder is called the tail end block, which is fixed on the pulley track. Other hanging cable cars can slide along the direction of the main beam on the track. The block farthest from the end of the main girder is called the head block, and there is a traction ring on it, which is used to install the dra...

AI Technical Summary

Problems solved by technology

[0003] For bridge cranes or gantry cranes with relatively large spans, the power supply cable of the trolley will be very long, so more cables are needed. , there will be a phenomenon of accumulation of cable tackle on the trolley track. If the power supply cable is suspended too long, it will interfere with the equipment below the user's factory building; Thus increasing the limit distance of the trolley on the crane will increase the blind area of ​​the trolley, resulting in low utilization of the crane

Images