A universal tunnel boring machine for special-shaped and round sections

Abstract

Provided is universal type tunnel heading equipment used for deformed and circular fracture surfaces. The equipment comprises a shell body, a motor, a driving shaft, a rear part giant slalom bearing, a front part giant slalom bearing, an enclosed type differential gear train and a cutter, wherein the rear part giant slalom bearing and the front part giant slalom bearing are arranged on the rear part and the front part of the inner cavity of the shell body through bearing structures respectively and can rotate in the rear part and the front part of the inner cavity of the shell body, the enclosed type differential gear train is arranged in the inner part of the shell body, the motor is connected to the input end of the enclosed type differential gear train through the driving shaft, and the output end of the enclosed differential gear train is connected to the cutter through a cutter shaft which penetrates through the front part giant slalom bearing; the motor drives the cutter shaft and the cutter to simultaneously conduct translational motion and spin motion through the enclosed type differential gear train, by changing the shape of the cutter, the interior transmission ratio of the enclosed type differential gear train and the moving path of the cutter, different moving tracks of the cutter are achieved, and headwork of various deformed sections or circular fracture surfaces is accomplished. The universal tunnel heading equipment used for the deformed and circular fracture surfaces has the advantages of being simple in structure, comprehensive in performance, high in universal type and the like, and can be qualified in constructions of various kinds of tunnels with deformed sections and circular sections.

Description

technical field [0001] The invention relates to a construction device for tunnel engineering, in particular to a general-purpose tunnel excavation equipment for special-shaped and circular sections, and belongs to the technical field of construction engineering machinery. Background technique [0002] With the construction of urban rail transit and other underground projects in full swing in my country, the demand for shield equipment is also rising. However, the existing shield tunneling equipment can only generally cut circular sections. Construction equipment for tunnels with special-shaped cross-sections (such as rectangles and ellipses) has always been a difficult point in the field of underground engineering technology. In order to solve this problem, technicians in the industry have been making unremitting efforts. For example, the Chinese patent (Patent No.: 200920067574.5) entitled "Multi-cutter Rectangular Pipe Jacking Machine" realizes rectangular tunnel pipe jac...

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Problems solved by technology

In order to solve this problem, technicians in the industry have been making unremitting efforts. For example, the Chinese patent (Patent No.: 200920067574.5) entitled "Multi-cutter Rectangular Pipe Jacking Machine" realizes rectangular tunnel pipe jacking construction by cutting soil with multiple cutter heads. However, the pipe jacking machine described in this patent is only suitable for the construction of rectangular tunnels, and it cannot do anything for other special-shaped tunnels, nor can it be used for the construction of circular cross-section tunnels.

In the prior art, there has not been a kind of excavation equipment that can adapt to the construction of various special-shaped cross-sections and circular cross-section tunnels.

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