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Full-fracture-surface hard-rock tunneling machine cutter disc and tunneling method

A technology of tunnel boring machine and tunnel excavation, which is applied in tunnels, earth-moving drilling, mining equipment, etc., can solve the problems of large cutter head and cutter wear, large force on cutter head, and large driving stress, etc., so as to improve cutting efficiency. , Increase the cutting area, the effect of good cutting quality

Pending Publication Date: 2018-04-17
陈南南
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The full-face tunnel boring machine is the tunnel boring equipment that is often used in the world. It is widely used all over the world because of its small impact on the surface and fast construction speed. However, the cutting method of the cutter head of the existing full-face hard rock tunnel boring machine is Only the hob is used for pure friction cutting, and the excavation stress is large, so the force on the cutter head is large, so the wear of the cutter head and the cutter is relatively large, resulting in slow excavation speed and many construction failures
[0003] The cutting diameter of the existing cutter head is not easy to adjust, and cannot be applied to the needs of tunnels with various diameters

Method used

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  • Full-fracture-surface hard-rock tunneling machine cutter disc and tunneling method

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Embodiment Construction

[0053] The present invention will be further described in detail below in conjunction with the accompanying drawings, which are explanations rather than limitations of the present invention.

[0054] see Figure 1-19 , a full-section hard rock tunnel boring machine cutter head, characterized in that it includes a main cutter head mechanism, an expansion cutter head mechanism and a connecting body 3; the connecting body 3 is provided with a connecting body mounting hole for connecting the cutter head driving mechanism The main cutter head mechanism includes a main cutter head 1, a first slag removal knife 13, a first hob group for rolling and crushing tunnel rocks and a first water knife group capable of cutting tunnel rocks with water flow, and one end of the main cutter head 1 The end face of the mounting hole of the connecting body connected to the connecting body 3, the other end is a cutting end, and the cutting end is provided with a first hob unit, a first water knife un...

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Abstract

The invention belongs to the technical field of engineering machinery, and particularly discloses a full-fracture-surface hard-rock tunneling machine cutter disc and a tunneling method. The tunnelingmachine cutter disc comprises a main cutter disc mechanism, an expansion cutter disc mechanism and a connector; the connector is provided with connector mounting holes for connecting a cutter disc driving mechanism; the main cutter disc mechanism comprises a main cutter disc, a first slag removing cutter, a first hob assembly and a first water jet cutter assembly; the expansion cutter disc mechanism includes multiple auxiliary cutter disc mechanisms; each auxiliary cutter disc mechanism includes an auxiliary cutter disc, an auxiliary cutter disc mounting frame and a retractable mechanism; thecutting end of each auxiliary cutter disc is provided with a second hob assembly, a second water jet cutter assembly and a second slag removing cutter. The water jet cutter assembles of the cutter disc can carry out hydraulic incision on tunnel rock, the tunnel rock subjected to hydraulic incision is much looser, then the hob assemblies can roll and crush the much looser tunnel rock, the tunnelingstress is effectively reduced, and hobs are protected; the retractable mechanisms connected with the auxiliary cutter discs can change the cutting diameter of the auxiliary cutter discs, and the full-fracture-surface hard-rock tunneling machine cutter disc is capable of meeting demands of tunnels different in diameter.

Description

technical field [0001] The invention belongs to the technical field of construction machinery, and in particular relates to a full-section hard rock tunnel boring machine cutterhead and a tunneling method. Background technique [0002] The full-face tunnel boring machine is the tunnel boring equipment that is often used in the world. It is widely used all over the world because of its small impact on the surface and fast construction speed. However, the cutting method of the cutter head of the existing full-face hard rock tunnel boring machine is Only use hob pure friction cutting, the excavation stress is large, so the force on the cutter head is large, so the cutter head and cutter wear are relatively large, resulting in slow excavation speed and many construction failures. [0003] The cutting diameter of the existing cutter head is not easy to adjust, and cannot be adapted to the requirements of tunnels with various diameters. Contents of the invention [0004] Aiming...

Claims

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Application Information

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IPC IPC(8): E21D9/11E21D9/10
CPCE21D9/1066E21D9/112
Inventor 陈南南
Owner 陈南南
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