A cable unwinder with self-pretensioning force

Abstract

A cable arrangement device with the self-pretightening force is characterized by comprising a left side bracket and a right side bracket, wherein a double-guiding screw rod, an intermediate shaft and a splined shaft are mounted on the two brackets; a first chain wheel and a second chain wheel are mounted at the two ends of the double-guiding screw rod respectively; the first chain wheel is connected with a winch transmission system; a sliding block is connected onto the double-guiding screw rod; a sliding block base is arranged outside the sliding block; a left guiding rack and a right guiding rack are mounted on the sliding block base; the upper ends of the two guiding racks are connected with the splined shaft; a first grooved pulley and a second grooved pulley are mounted on the intermediate shaft and the splined shaft respectively; the intermediate shaft is in sliding joint with the brackets on the two sides through shaft brackets A at the two ends; a unidirectional transmission wheel connected with the second chain wheel is mounted on the splined shaft; at least a cam is fixedly mounted on the splined shaft; the cable arrangement device further comprises an elastic compressing mechanism. Through the adoption of the cable arrangement device, when a rope is coiled or uncoiled under the non-load condition, a steel wire rope positioned between a winding drum and the cable arrangement device is kept at the tensioned state, so that the fact that the steel wire rope is wound on the winding drum uniformly and in order is guaranteed, pressed ropes and disordered ropes are avoided, and the non-load use working condition is met.

Description

technical field [0001] The invention relates to the technical field of traction and lifting equipment, in particular to a cable puller with its own pre-tightening force. Background technique [0002] The winch, also known as the hoist, is a light and small lifting device that uses a drum to wind a wire rope to lift or pull heavy objects. It is mainly used for material lifting or flat dragging in construction, water conservancy projects, forestry, mines, wharves, etc. During the use of the winch, it is a common problem that the ropes are easy to loosen, especially under the condition of no load. The speed of the rope is obviously faster than the descending speed of the steel wire rope, causing the wire rope on the reel to be fluffy and scattered; when the rope is taken up, there is no heavy object to pull, the steel wire rope cannot be tightly wound, and the problem of disordered rope may also occur. When the heavy object is fixed on the lower end of the wire rope with the a...

AI Technical Summary

Problems solved by technology

This kind of operation method has the disadvantages of time-consuming and labor-intensive, and it cannot be implemented when the working space is limited.

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