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Heading machine with high-pressure water-jet and mechanical-coupling integrated type disc hobbing cutter

A high-pressure water jet, integrated technology, applied in mining equipment, earthwork drilling, tunnels, etc., can solve the problems of limited excavation efficiency of roadheaders and low degree of tool coordination, and achieve improved rock breaking efficiency, improved excavation efficiency, The effect of simplifying the installation design

Active Publication Date: 2019-12-20
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the shortcomings in the above-mentioned background technology, the present invention proposes a roadheader equipped with a high-pressure water jet-mechanical coupling integrated disc-shaped hob, which solves the problem of low coordination between the high-pressure water jet and the self-rotating cutter in the prior art. The problem of limited driving efficiency of roadheader

Method used

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  • Heading machine with high-pressure water-jet and mechanical-coupling integrated type disc hobbing cutter
  • Heading machine with high-pressure water-jet and mechanical-coupling integrated type disc hobbing cutter
  • Heading machine with high-pressure water-jet and mechanical-coupling integrated type disc hobbing cutter

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1, such as figure 1 As shown, a roadheader equipped with a high-pressure water jet-mechanical coupling integrated disc hob includes a roadheader 1, ancillary equipment 2 and a slag cleaning system. The above-mentioned technical features can adopt the components on the existing roadheader. The excavation main engine 1 includes a cutter head 3, and the cutter head is connected with the main drive provided in the excavation main engine to provide the power for the rotation of the cutter head. The rear supporting equipment 2 is provided with a high-pressure water system, and the cutter head 3 is provided with an integrated disc-shaped hob 4, the high-pressure water system is connected with the integrated disc-shaped hob 4, and the integrated disc-shaped hob 4 provides High-pressure water forms a high-pressure water jet-mechanical coupling integrated disc hob, which realizes a high degree of cooperation between high-pressure water jet and self-rotating cutters, and h...

Embodiment 2

[0033] Example 2, such as Figure 3~6As shown, a roadheader carrying a high-pressure water jet-mechanical coupling integrated disc hob, the high-pressure water inlet channel 4 includes an axial water inlet channel 401 and several radial water inlet channels 402, the axial The water inlet channel 401 communicates with the rotating high-pressure pipe 8, and the high-pressure water in the rotating high-pressure pipe 8 enters into the axial water inlet channel. The radial water inlet channel 402 communicates with the axial water inlet channel 401 to realize the reversing of the high pressure water from the axial direction to the radial direction. The central axis of the axial water inlet channel 401 coincides with the central axis of the cutter shaft 4-1, and the radial water inlet channel 402 is located on the same cross section of the cutter shaft 4-1. That is, the radial water inlet channels are arranged in a divergent shape, and the number of radial water inlet channels is th...

Embodiment 3

[0037] Embodiment 3, a rock-breaking method of a roadheader carrying a high-pressure water jet-mechanical coupling integrated disc hob, such as Figure 7 shown, including the following steps:

[0038] S1: The high-pressure water outlet channel on the cutter shaft is connected to the rotating high-pressure pipe 8 of the high-pressure water system;

[0039] S2: During the tunneling process of the roadheader, the high-pressure water of the high-pressure water system enters the high-pressure water inlet channel through the fixed high-pressure pipe 9, the high-pressure rotary joint 7 and the rotating high-pressure pipe 8 under the action of the high-pressure pump group 5 and the booster device 6, and then The high-pressure water jet is sprayed out through the high-pressure water distribution channel and the high-pressure water outlet channel to impact the rock surface, causing cracks on the rock surface, and then the hob crushes the rock surface to break the rock, realizing high-pr...

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Abstract

The invention discloses a heading machine with a high-pressure water-jet and mechanical-coupling integrated type disc hobbing cutter, and the heading machine solves the problems that matching degree for high-pressure water jet with a rotatable tool in the prior art is not high, and heading efficiency of the heading machine is limited. The heading machine comprises a heading main machine, rear matched equipment and a residue clearing system, wherein the heading main machine comprises a cutter head; a high-pressure water system is arranged on the rear matched equipment; an integrated type disc hobbing cutter is arranged on the cuter disc; and the high-pressure water system is connected to the integrated type disc hobbing cutter. The heading machine disclosed by the invention integrates high-pressure water jet with mechanical coupling for breaking rocks, high-pressure water jet impacts rock surfaces earlier than the hobbing cuter to generate cracks, and the hobbing cutter (a cutter ring)grinds and crushes the rock surfaces with the cracks, so that heading efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of roadheaders, in particular to a roadheader equipped with a high-pressure water jet-mechanical coupling integrated disc hob. Background technique [0002] Tunnel boring machine is a large-scale tunnel excavation equipment integrating mechanical, electronic, hydraulic, laser and other technologies. It plays an important role in the construction of mountain tunnels and urban subway projects. In the process of hard rock excavation, the hardness of the rock is relatively high, the force on the cutter head is complicated, the wear of the cutter is fast, and the frequency of changing the cutter is relatively high, which greatly restricts the construction efficiency. In addition, the tool change operation of the shield machine is not only costly and takes a long time, but also the operating environment is harsh, and the operators will bear great safety risks. It is an imminent task to develop a new hob suitable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/10E21D9/12
CPCE21D9/10E21D9/1066E21D9/12
Inventor 姜礼杰赵梦媛杨航原晓伟欧阳凯
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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