External power dredging equipment for small-pipe-diameter drainage blind pipe of tunnel and working method

Abstract

The invention discloses external power dredging equipment for a small-pipe-diameter drainage blind pipe of a tunnel and a working method. The external power dredging equipment comprises a rotary driving device; a power output end of the rotary driving device is connected with a vibration cutting mechanism through a power transmission mechanism; the power transmission mechanism is sleeved with a sliding pipe and a fixed pipe; one end of the sliding pipe is connected with the rotary driving device, the other end of the sliding pipe extends into the fixed pipe and is in sliding connection with the fixed pipe, and the vibration cutting mechanism extends out of the fixed pipe; the power transmission mechanism comprises a plurality of universal joints which are sequentially connected through connecting shafts, the universal joint at one end of the power transmission mechanism is connected with the rotary driving device, and the universal joint at the other end of the power transmission mechanism is connected with a cutting drill bit seat mounting column; and the multiple connecting shafts are rotatably sleeved with supporting pieces, and the multiple supporting pieces make contact with the inner walls of the corresponding sliding pipe and the corresponding fixed pipe. The blockage problem of the small-pipe-diameter drainage blind pipe can be quickly and conveniently dredged in a mechanical cutting and vibrating mode.

Description

technical field [0001] The invention belongs to the technical field of dredging blind drainage pipes of traffic tunnels, and in particular relates to a powered external dredging device and a working method for small-diameter drainage blind pipes of tunnels. Background technique [0002] In recent years, with the rapid development of the construction of highway tunnels, railway tunnels, subway tunnels and municipal pipe galleries in China, the status of the drainage system has become increasingly important. As important components of the drainage system, drainage blind pipes and drainage ditches are directly related to their blocking status. It is related to the service performance of the drainage system. [0003] In these tunnel projects, the problem of crystallization blockage of tunnel drainage blind pipes is relatively common during the operation of tunnels, especially in karst area tunnels. In severe cases, it can lead to increased leakage of tunnel water, increased lini...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems existing in the prior art, the present invention provides a power external dredging device and working method for small-diameter drainage blind pipes in tunnels, which can quickly and conveniently dredge small-diameter blind drainage pipes by means of mechanical cutting and vibration The cutting effect is good, it can adapt to the curved drainage blind pipe and the power transmission performance is good, the cutting mechanism can adapt to the drainage blind pipe of different pipe diameters, and the stability is good when cutting in the drainage blind pipe

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