Linkage shaft for cable reel and cable unfolding and lifting device

Abstract

The invention discloses a linkage shaft for a cable reel and a cable unfolding and lifting device. The linkage shaft comprises a shaft body and two end covers; abutting assemblies are arranged at the two ends of the shaft body; each abutting assembly comprises an annular groove formed in the end of the shaft body; the groove bottoms, in the axial direction of the shaft body, of the annular grooves are connected with a plurality of sliding rods capable of sliding in the annular grooves through sliding rod elastic pieces; each abutting assembly further comprises an abutting connection port set; and abutting rings which can be matched with the annular grooves in an embedded mode and can act on the sliding rods are arranged at the inner side ends of the end covers. According to the linkage shaft for the cable reel and the cable unfolding and lifting device, through the arrangement of sliding blocks capable of moving in the radial direction, penetrating fit of the shaft body and the cable reel can be easily achieved during assembly, abutting connection of the shaft body and the cable reel can be achieved during rotation or movement of the cable reel, and therefore shaking of the cable reel can be effectively reduced. Besides, only the shaft body needs to be braked, the cable reel can be effectively and accurately braked, and therefore the problem of excessive pulling can be prevented.

Description

technical field [0001] The invention belongs to the technical field of cable construction, and in particular relates to an interlocking shaft for a cable reel and a cable spreading and lifting device. Background technique [0002] Cable is a necessary material for the construction of power lines, and it is usually wound on a cable drum to enter the construction site in rolls. In order to facilitate the deployment of cables, the support shaft is usually used to penetrate the cable roll (the cable has been wound on the cable reel), the cable roll is set on the support shaft, and then the support shaft is placed on the support frame, and then driven by a jack or other The device raises the support shaft or support frame to suspend the cable coil, so that the cable can be deployed. But existing support device (support frame and support shaft) has following problem: [0003] 1. The cable reel is usually provided with a cable reel support hole for penetrating the support shaft. ...

AI Technical Summary

Problems solved by technology

[0003] 1. The cable reel is usually provided with a cable reel support hole for penetrating the support shaft. In order to facilitate the penetration of the support shaft, the outer diameter of the support shaft will be smaller than the cable reel support through hole. In this way, under the action of its own weight, the cable reel will It cannot be coaxial with the support shaft. When the cable is deployed, the cable reel will rotate off-axis relative to the support shaft under the action of external force. This will easily cause the support shaft or cable reel to shake or jump, which will inevitably It will affect the stability of cable deployment

[0004] 2. The support frame is not provided with a structure that can brake the rotation of the cable reel. In this way, under the action of external force, the cable reel is likely to release too many cables. returned or discarded), it is bound to affect the efficiency of cable deployment

[0005] 3. Since the cables are mostly stored and transported in the form of coils, the cables will be bent when unfolded, which will greatly affect the efficiency and quality of the subsequent processing of the cables by the operator

Images