Electric single beam crane
Electric single beam crane (traveling crane) is a common lifting machine, including beam frame, crane, trolley, electric hoist and control mechanism. The beam frame is composed of end beams on both sides and main beams connecting the end beams. The end beams are driven by the crane and run on the end beam track. The electric hoist runs on the main beam track with the trolley, thus lifting the workpiece at the corresponding position through the hook. There are some defects in the structure of the existing electric single beam crane: for example, the main beam and end beam are assembled and welded box structures, and the utilization of materials is not reasonable, which is not conducive to reducing the cost; For another example, the guide wheels of crane and trolley can not adjust the gap with the track, which affects the running stability; For another example, there are many intermediate steps when the anti offside system of crane, trolley and electric hoist stops. If there is a problem in a certain link, it will lead to safety accidents due to the failure to stop in time; Wait. In view of the above shortcomings, it is necessary to improve the existing electric single beam crane.