Differential compensating and protecting device used for taking up power cables

Abstract

The invention discloses a differential compensating and protecting device used for taking up power cables. The differential compensating and protecting device comprises a bottom plate. A first supporting rod is fixedly connected to the bottom plate. An installing base is fixedly connected to the first supporting rod. A reciprocating lead screw is arranged in the installing base. A winding roller is fixedly connected to one end of the reciprocating lead screw. A second supporting rod is fixedly connected to the bottom plate. A fixing block is fixedly connected to the second supporting rod. According to the differential compensating and protecting device, by arranging a transmission ratio gradual reducing type transmission device, every time the winding roller winds one layer of the power cable, a drive wheel set changes one time correspondingly through the transmission ratio between a transmission belt and a driven wheel, thus differential compensating is carried out for take-up speed acceleration caused by increase of the numbers of layers, the take-up speed keeps constant, then the situation that the power cables are damaged due to too large force in the take-up process is avoided, and differential compensating and protecting to rolling and taking up of the power cables can be achieved.

Description

technical field [0001] The invention relates to the technical field of power cable recovery, in particular to a differential compensation protection device for power cable recovery. Background technique [0002] Power cables are cables used to transmit and distribute electric energy. Power cables are often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. After the power cable is used for a long time, when it fails due to aging and other reasons, the power cable needs to be replaced with a new one, and the used cable drawn out from the wiring tube cannot be discarded, and the metal cable core inside it can be recycled. In addition, some power cables will also need to be pulled out and recycled due to engineering changes and other reasons. [0003] When the existing power cable recovery device is in use, it usually uses a servo motor to...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings in the prior art, such as: when the existing power cable recovery device is in use, it usually uses a servo motor to rotate at a constant speed to drive the winding roller to rotate to rewind and recover the power cable. During the process, since the power cable needs to be wound up on the winding roller layer by layer, as the number of layers increases, the winding speed will increase, which will increase the tension on the power cable, and excessive tension will cause power failure. The cable is damaged and cannot be used any longer. At the same time, it is difficult to achieve neat winding of the power cable layer by layer because the position of the winding roller is not fixed relative to the position of the outlet tube.

Images