Trackless door operator applied in round hole

Abstract

The invention discloses a trackless portal crane applied in a circular tunnel. The trackless portal crane comprises hoisting beams, connecting beams, lower cross beams, uprights and hoisting devices, wherein the uprights are arranged between the lower cross beams and the corresponding hoisting beams, the connecting beams are mounted above the corresponding hoisting beams, the hoisting devices are mounted below the hoisting beams; the two lower cross beams parallel with a center line direction of the circular tunnel are positioned at two sides of a trackless portal crane body, the trackless portal crane further comprises rubber solid wheels, wherein the plurality of rubber solid wheels are mounted on the lower cross beams, used for supporting the trackless portal crane body, and placed on the ground in the circular tunnel; an included angle between supporting surfaces of the rubber solid wheels on the two lower cross beams is 5-80 degrees. According to the trackless portal crane, the rubber solid wheels are used as trolleys of the trackless portal crane, and the rubber solid wheels can be well matched with the ground of the inner wall of the circular tunnel without additionally mounting a track, in which the portal crane walks, in the circular tunnel, after the portal crane is mounted and regulated, the operating efficiency of the portal crane is slightly different from that of a flat track portal crane, when the portal crane is applied in the circular tunnel, the efficiency of dismantling a track sleeper is high, the labor force is saved, the time is saved, and the dismantling time is controllable.

Description

technical field [0001] The invention relates to a lifting door machine, in particular to a trackless door machine used in a round hole. Background technique [0002] Nowadays, TBMs are used on a large scale in the world for tunnel excavation, that is, full-face tunnel boring machines or shield machines. The diameter of the tunnels ranges from a few meters to more than ten meters. The excavation can reach more than 1,000 meters per month, and the excavation distance of a single head can reach tens of kilometers. In China's basic construction, large-scale TBM roadheaders or shield machines have been widely used in recent years. TBM roadheader is a one-time equipment that completes excavation, slag extraction, segment lining and filling. It is generally shaped as a circular hole. The construction equipment is mainly transported in and out by rail, and the laying of track sleepers is completed by the random mechanism of the roadheader. It is troublesome to dismantle the long-di...

AI Technical Summary

Problems solved by technology

In the current dismantling process, because the distance is short, the dismantling time contradiction is not prominent. If the distance is long and the weight of a single sleeper is heavy, the problem of dismantling time is very serious, and lifting, lifting and transportation are also a big problem.

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