A folding arm lifting device

Abstract

The invention provides folding arm type lifting equipment. The folding arm type lifting equipment comprises a tower body, a main arm, a folding arm and a telescopic arm. The main arm is hinged to thetower body, the folding arm is hinged to the main arm, and the telescopic arm is slidably arranged in the folding arm. A first telescopic arm pulley and a second telescopic arm pulley are oppositely arranged at the top end of the telescopic arm, and a swing frame is hinged to the telescopic arm. A steel wire rope penetrates through the folding arm and the telescopic arm and penetrates out from theposition between the first telescopic arm pulley and the second telescopic arm pulley, and a hanging bracket is arranged at the tail end of the steel wire rope. The steel wire rope is arranged on thecenter of gravity of the hanging bracket, and the first telescopic arm pulley and the second telescopic arm pulley which are oppositely arranged limit the steel wire rope in a sliding groove to liftcargo at any position. After the steel wire rope is connected with the hanging bracket, pulling force of a winch on the steel wire rope directly acts on the center of gravity of the hanging bracket, so that the hanging bracket is evenly stressed. After the hanging bracket is tightened by the steel wire rope, rigid connection is formed between the swing frame, the hanging bracket and the cargo, thecargo is not shaken due to influence of external factors in the lifting process, and the safety and efficiency of lifting are improved.

Description

technical field [0001] The invention relates to box body hoisting equipment, in particular to a folding-arm type hoisting equipment. Background technique [0002] When transporting batches of goods, in order to ensure the safety of the transportation process and the convenience of transshipment, the goods are generally packed into boxes for transportation. For example, ocean shipping generally uses general-purpose containers to transport goods. When transporting specific goods Specific cabinets can be made according to the needs. The lifting of the cabinet on land generally uses a reach crane or an ordinary telescopic boom crane. The crane grabs the cabinet through the cabinet arm and lifts the cabinet through the movement of the cabinet. Transport to the transport vehicle or stack the boxes; in large ports, gantry cranes or mobile cranes are generally used to lift the boxes between the wharf and the box freighter; The crane is used to lift the box. The patent application n...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems existing in the prior art, the present invention provides a folding-arm type hoisting device, which solves the problem that the boom of the crane can still lift the box stably when it is rotated clockwise by more than 90 degrees from the horizontal direction and the steel wire rope can be balanced. The problem of lifting the box, and the problem of shaking or swinging of the box when lifting the box is solved by setting hangers and swing frames

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