Self-propelling earth pressure balance pipe-jacking heading machine

Abstract

The invention provides a self-propelling earth pressure balance pipe-jacking heading machine and relates to a heading machine. The self-propelling earth pressure balance pipe-jacking heading machine comprises a front shell and a rear shell, wherein the front shell and the rear shell are connected, a cutterhead is installed on the head of the front shell, a power mechanism which drives the cutterhead to rotate is installed in the front shell, a deviation correction oil cylinder is connected to the rear portion of the cutterhead, spiral augers are installed in the front shell and the rear shell, a muddy water stirring device is arranged below the spiral auger in the rear shell, and a self-propelling mechanism is connected to the rear portion of the rear shell. According to the self-propelling earth pressure balance pipe-jacking heading machine, a traditional jacking way is changed, the self-propelling mechanism is installed in a body of the pipe-jacking heading machine, and the jacking way is completely different from the traditional jacking way; the rear portion of the pipe-jacking heading machine is prevented from bearing pushing force of the oil cylinder, bearing of a large jacking load does not need to be considered when the wall thickness and the bearing capacity of a delivery pipeline are designed, designing and manufacturing can be conducted completely according to conventional parameters, and project cost is greatly reduced.

Description

technical field [0001] The invention relates to a tunneling machine, in particular to a self-propelled earth pressure balance pipe jacking tunneling machine. Background technique [0002] The motion and walking of the existing pipe jacking machine are through installing a backrest and an oil cylinder in the pit, utilizing the oil cylinder to push the pipe forward, hanging into the pipe fittings and then advancing, and so on. In this process, due to the continuous increase of the jacking depth of the jacking pipe, the jacking force of the backrest cylinder also increases accordingly. When it reaches a limit value, the inserted oil cylinder will not be able to withstand the thrust of the oil cylinder, and the pipe will be broken and damaged. Contents of the invention [0003] The purpose of the present invention is to provide an earth pressure balance pipe jacking machine with an autonomous propulsion mechanism, which prevents the rear of the roadheader from being subjected ...

AI Technical Summary

Problems solved by technology

In this process, due to the continuous increase of the jacking depth of the jacking pipe, the jacking force of the backrest cylinder also increases correspondingly. When it reaches a limit value, the inserted oil cylinder will not be able to withstand the thrust of the oil cylinder, and the pipe will be broken and damaged.

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