A lifting beam mechanism of a hoist used for cable laying in a tunnel

Abstract

The invention discloses a hoisting beam mechanism of a hoist for laying a cable in a tunnel. The hoisting beam mechanism comprises a hoisting beam bracket, a hoisting cross beam, a motor unit, a pulley block and a hydraulic lifting gantry. The hydraulic lifting gantry comprises a pedestal, an inner gantry, an outer gantry and a hydraulic cylinder. The inner gantry comprises an inner gantry left stand column and an inner gantry right stand column. The bottom end of the inner gantry left stand column and that of the inner gantry right stand column are separately fixed to the pedestal. The outer gantry comprises an outer gantry cross beam, an outer gantry left stand column and the outer gantry right stand column. The hydraulic cylinder is arranged in the inner gantry. An output shaft of the hydraulic cylinder is connected with the outer gantry cross beam. The hoisting beam mechanism is high in safety, high in working efficiency, reduced in production cost, and convenient for cooperation, saves lots of space for the working environment in the tunnel, and is more convenient and quicker.

Description

technical field [0001] The invention relates to a lifting beam mechanism of 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...

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

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