Hard rock tunnel boring machine

A technology of tunnel boring machine and boring machine, which is applied in the direction of tunnel, mining equipment, earth-moving drilling and mining, etc., can solve the problems of long structure length and so on.

Active Publication Date: 2014-08-20
CHINA RAILWAY CONSTR HEAVY IND
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the hard rock tunnel boring machine itself has a long structural length. Due to the limitation of its own structural length during the turning process, it can basically realize the turning excavation with a turning radius of 250m-300m. However, for special construction, such as coal mine tunnel construction conditions, turning is required. Turning excavation with a radius of less than 100m

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with accompanying drawing.

[0023] As shown in the figure, the hard rock tunnel boring machine proposed by the present invention includes a cutter head 10 , a drive system 20 , a main beam 30 and a propulsion support system. The main beam 30 includes a front main beam 31 and a rear main beam 32 . The hard rock tunnel boring machine of the present invention and its individual components will be described in detail below.

[0024] like figure 1 and figure 2 As shown, the cutter head 10 can cut cuttings, and according to the cut rock formation and production capacity, corresponding cutters, such as hobs, can be installed on the cutter head 10 . The cutterhead 10 is mounted to the front end of the drive system 20 via a cutterhead support device.

[0025] The drive system 20 generates a turning moment to drive the cutter head 10 to rotate, thereby realizing rock breaking by the hob. As shown in the fi...

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Abstract

The invention relates to a hard rock tunnel boring machine. The hard rock tunnel boring machine comprises a knife flywheel, a driving system, main beams and a boosting and supporting step change system. The knife flywheel is used for cutting rock. The driving system is used for driving the knife flywheel to rotate. The main beams include the front main beam and the rear main beam hinged to the front main beam. The knife flywheel is arranged on the driving system. The drying system is arranged on the front main beam. The boosting and supporting step change system is used for enabling the main beams to move forwards. The boosting and supporting step change system comprises a boosting device which is connected with the front main beam and the rear main beam respectively. In the turning tunneling process, the included angle between the front main beam and the rear main beam can be adjusted through the boosting device. Turning tunneling with the small turning radius can be achieved when the hard rock tunnel boring machine conducts tunneling.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a hard rock tunnel boring machine. Background technique [0002] Full-face rock tunnel boring machine (TBM) can realize tunnel construction operations such as propulsion, rock breaking, ballasting, and support at the same time. It has outstanding advantages such as fast, high-quality, safe, economical, and environmentally friendly. It has been more and more widely used in tunnel projects such as mines, transportation, subways and urban underground projects. [0003] In the tunnel route design, there are inevitably curved sections on the horizontal plane due to various reasons, which requires the hard rock tunnel boring machine to be able to turn and excavate according to a certain turning radius during the construction process. However, the hard rock tunnel boring machine itself has a long structural length. Due to the limitation of its own structural length during...

Claims

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Application Information

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IPC IPC(8): E21D9/10
Inventor 刘飞香程永亮苏翠侠梁海斌李大平薛静
Owner CHINA RAILWAY CONSTR HEAVY IND
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