A hoist for cable laying in a tunnel

Abstract

The invention discloses a lifting machine for cable laying in a tunnel. The lifting machine comprises a base, a hosting rope, a hoisting rope motor and a lifting beam mechanism, wherein the lifting beam mechanism comprise a lifting beam support, a lifting cross beam, a motor group, a pulley group and a hydraulic lifting portal frame, the hydraulic lifting portal frame comprises a base, an internal portal frame, an external portal frame and a hydraulic cylinder, the base comprises a folded bottom disc and a plurality of rollers, the plurality of rollers are uniformly arranged at a lower end surface of the folded bottom disc, the internal portal frame comprises an internal portal frame left vertical post and an internal portal right vertical post, the external portal frame comprises an external portal frame cross beam, an external portal frame left vertical post and an external portal frame right vertical post, the hydraulic cylinder is arranged in the internal portal frame, and an output shaft of the hydraulic cylinder is connected with the external portal frame cross beam. The lifting machine for cable laying in the tunnel has the advantages of high safety and high working efficiency, the production cost is reduced, the synergistic effect is facilitated, the space is greatly reduced for a working environment in the tunnel, and the lifting machine is more convenient and rapid.

Description

technical field [0001] The invention relates to a hoist used for cable laying in a tunnel, and belongs to the technical field of automatic lifting and transportation. Background technique [0002] At present, in the construction of cable engineering in the tunnel, the lifting of the cable is mainly divided into the following parts with the cooperation of manpower, one is purely manual lifting after laying the cable, the other is the hoist wire traction cable with manual lifting of the cable, and the third is the laying of the cable car on the track The cable is combined with manual lifting of the cable. These three methods do not change the traditional manual operation method to lift the cable, and all require a lot of manpower to participate. [0003] For the current tunnel wellhead size requirement of 650mm, large-scale equipment cannot meet the requirements, and there are the following disadvantages when lifting cables purely manually: [0004] (1) Since most of the cabl...

AI Technical Summary

Problems solved by technology

[0004] (1) Since most of the cables in the tunnel are large cables, it is inevitable that there will be safety hazards when lifting the cables under manual operation;

[0005] (2) A large amount of manpower is required, which will inevitably result in high labor costs;

[0006] (3) Low work efficiency;

[0008] (5) The operator needs to take up a lot of space when working in the tunnel

[0009] In short, it is inconvenient and inconvenient to lift the cable purely manually

Images