A crane for small heavy objects that prevents the sling from shaking and stalls and self-locks when winding up

Abstract

The invention relates to the technical field of cranes, and discloses a crane for small heavy objects that prevents the sling from shaking and stalls and self-locks when rewinding. Under the joint action of group, rope, coil spring and fixed block, before the device lifts the heavy object, the rope is short and wrapped by the casing group, which is convenient for hooking the heavy object. Through the joint action of the casing group and the winding device , the casing group is contracted by the action of the winding device, and the rope of the stretching part is fully wrapped to ensure that the heavy object will not shake when the heavy object is lifted and moved. Through the joint action of the baffle and the splint, the rope stretch It has the function of positioning and slowing down when it is rewinding. Through the joint action of the rotating shaft, swing rod, cam and ratchet, it prevents the rotating shaft from rotating, effectively protects the rewinding device, avoids equipment wear due to excessive speed, and reduces use. life.

Description

technical field [0001] The invention relates to the technical field of cranes, in particular to a small crane for heavy objects that prevents the sling from swaying and stalls and self-locks when rewinding. Background technique [0002] Cranes are hoisting machinery used for vertical lifting and horizontal handling of heavy objects. They are widely used in factories, freight yards, warehouses, ports and other places. According to the structure and performance of cranes, they can be divided into light and small, bridge type, jib type and There are four types of cable type, which bring great convenience to the development of industrial production and construction industry. Cranes are usually composed of three parts: frame, mechanism and control system. The ropes of the crane play an indispensable role in this process. At present, the ropes of the crane have the following problems when they are used: [0003] Generally, the crane transports small heavy objects, and the machine...

AI Technical Summary

Problems solved by technology

[0003] Generally, the crane transports small heavy objects, and the machine changes from a moving state to a static state. During this process, the inertia of the rope will drive the heavy objects to tilt forward, resulting in swings, which is not conducive to the rapid placement of heavy objects, and the work efficiency is low. And when the rope swings violently, fragile items will be damaged by collision, resulting in unnecessary economic losses. Some cranes use the method of retracting and retracting the rope to avoid rope shaking, but the rope may move too fast when retracting and retracting. , thereby damaging the device

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