A kind of hard rock cutterhead and cantilever tunneling machine including the cutterhead

A cutter head and hard rock technology, applied in mining equipment, tunnels, earthwork drilling and mining, etc., can solve the problems of slow driving efficiency in hard rock formations, and achieve improved rock breaking efficiency, uniform force, and the ability to resist deformation and damage strong effect

Active Publication Date: 2021-08-27
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a hard rock cutterhead and a cantilever roadheader including the cutterhead, which solves the problem of slow tunneling efficiency of existing cantilever roadheaders in hard rock formations

Method used

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  • A kind of hard rock cutterhead and cantilever tunneling machine including the cutterhead
  • A kind of hard rock cutterhead and cantilever tunneling machine including the cutterhead
  • A kind of hard rock cutterhead and cantilever tunneling machine including the cutterhead

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Experimental program
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Effect test

Embodiment 1

[0032] Such as figure 1 and 2 As shown, a hard rock cutter head includes a main structure 1 of the cutter head. The main structure 1 of the cutter head includes a head 8, a spoke 9 and a flange 10. The head 8 is connected to the spoke 9, and the two are processed by the whole plate. The spokes 9 are welded to the flange 10, and the flange is used to connect with the rotating shaft of the roadheader. The spokes 9 are arranged in the shape of a rice. Similarly, the spokes 9 can be arranged in a cross or * shape. The head 8, the spokes 9 and the flange 10 forms a conical cutter head main structure 1 . There are detachable cutters on the head 8 and spokes 9, the cutter is the hob 2, the hobs on the conical surface of the cutter head are arranged with 12-inch or 14-inch hobs, 2 on the same track, and 3 edge hobs are arranged on the same track , the same cutter can be a gear cutter, which improves the adaptability of the cutter head to the formation.

[0033] Such as image 3 As...

Embodiment 2

[0037] A cantilever tunneling machine including a hard rock cutter head, the structure of the hard rock cutter head is the same as that in Embodiment 1.

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PUM

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Abstract

The present invention proposes a hard rock cutterhead and a cantilever roadheader comprising the cutterhead. The hard rock cutterhead includes a conical cutterhead main structure, the cutterhead main structure includes a head, spokes and flanges, and the head and spokes The spokes are connected to the flange, the head and the spokes are provided with detachable cutters, and the cantilever boring machine includes the above-mentioned hard rock cutter head. The advantages of the invention: the cutterhead structure is more uniform in force, has a strong ability to resist deformation and damage, and can withstand high thrust, high speed and other driving conditions; the cutterhead is made of whole plate processing or steel plate welding, and the overall strength and rigidity are higher. Good; the cutter adopts the form that the end cover is located on the mounting surface of the cutter seat, which can improve the rock-breaking efficiency; the center hob of the cutter head can be retracted when the cutter head swings and cuts, effectively avoiding abnormalities such as eccentric grinding and edge chipping of the center hob Damage problem; the interchangeable installation of the hob and toothed cutter can excavate not only soft soil but also hard rock; the cutter head can swing up and down, left and right, and can excavate circular and special-shaped sections.

Description

technical field [0001] The invention relates to a tunnel excavation cutter head, in particular to a hard rock cutter head and a cantilever boring machine including the cutter head. Background technique [0002] With the development of excavation technology, the construction in hard rock formations requires not only safety and reliability, but also the requirements for excavation efficiency are constantly increasing. However, the cost of using TBM equipment in hard rock formations is too high. If drilling and blasting is used The safety of the rock is low, and the excavation efficiency is low if a continuous miner or a bolter unit is used. As a safe, low-cost, and high-efficiency cantilever roadheader, it will be vigorously developed. [0003] At present, the driving head of the cantilever roadheader is mainly two left-right symmetrical hemispherical or drum-shaped cutting heads (for example, the name is "a horizontal-axis roadheader cutting simulation test bench", and the ap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/10
CPCE21D9/1006E21D9/104
Inventor 李建斌张家年兰磊王杜鹃郑康泰
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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