X type open full-section tunnel boring machine

Abstract

The invention discloses an X type open full-section tunnel boring machine. The X type open full-section tunnel boring machine comprises a driving system (2) and a cutter head (1) installed at the front end of the driving system, wherein the driving system (2) is connected with a protective shield system (3), an inner clamp assembly (6) and a rear supporting assembly (7) in sequence, an outer clamp assembly (5) is installed on the inner clamp assembly (6) through a propelling system (4), the outer clamp assembly (5) is composed of outer clamp structural components (15), supporting boots (16), supporting boot oil cylinders (17) and supporting boot oil cylinder guiding pillars (18), and the protective shield system (3) is composed of a top protective shield (8), side protective shields (10), a middle protective shield (12) and a bottom protective shield (13). By means of the structure of the X type open full-section tunnel boring machine, only a supporting point is needed to bear the gravity of the tunnel boring machine, the supporting area of a supporting boot plate is large, the X type open full-section tunnel boring machine is wide in application range of surrounding rocks and high in flexibility, the gravity center of the tunnel boring machine is balanced so that the phenomenon of sinking in the tunneling process of the main machine can be avoided, and the work mode can be changed in order to adapt to variation of different surrounding rocks in the tunneling process.

Description

technical field [0001] The invention relates to an open full-section tunnel boring machine, in particular to an X-type open full-section tunnel boring machine. Background technique [0002] Full-face tunnel boring machine (TBM) is a large-scale tunnel boring equipment integrating mechanical, electronic, hydraulic, laser and other technologies. It plays an important role in the construction of mountain tunnels and urban subways. The open full-face tunnel boring machine is mainly composed of cutter head, shield, drive assembly, main beam, propulsion and support system and other auxiliary systems. The working principle of the roadheader is to break and excavate the rock wall of the tunnel face through the rotation of the cutterhead under the thrust of the propulsion cylinder. The traditional open full-face tunnel boring machine only has a pair of boot system. When the tunnel boring machine is working, firstly, the bottom shield of the boot system and the shield system is used...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is the first in the prior art. The roadheader needs the boot system and the shield system to be the two fulcrums of the roadheader at the same time. Limited and poor flexibility. Third, the center of gravity of the roadheader is forward, which is not enough to resist the gravity of the roadheader, and it is easy to cause the roadheader to sink during tunneling.

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