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Hard rock cutterhead and cantilever heading machine comprising same

A cutter head, hard rock technology, applied in mining equipment, earth-moving, tunnels, etc., can solve the problem of slow excavation efficiency in hard rock formations, and achieve the effect of high excavation efficiency, low equipment cost, and reduced deformation.

Active Publication Date: 2019-12-03
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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  • Hard rock cutterhead and cantilever heading machine comprising same
  • Hard rock cutterhead and cantilever heading machine comprising same
  • Hard rock cutterhead and cantilever heading machine comprising same

Examples

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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Abstract

The invention provides a hard rock cutterhead and a cantilever heading machine comprising the same. The hard rock cutterhead comprises a conical cutterhead main structure; the cutterhead main structure comprises a head, spokes and a flange; the head is connected with the spokes, the spokes are connected with the flange, and the head and the spokes are provided with detachable cutters. The cantilever heading machine comprises the hard rock cutterhead. The hard rock cutterhead and the cantilever heading machine comprising the same have the advantages that the stress of the cutterhead structure is more uniform, the deformation resistance and break resistance are high, and the high-thrust high-rotation-speed excavating working condition can be borne; the cutterhead is formed by machining a complete plate or welding steel plates, and the overall strength and stiffness are better; the cutters adopt the form that end covers are located on cutter seat installation surfaces, and the rock breaking efficiency can be improved; a cutterhead center hobbing cutter can be drawn back when the cutterhead conducts swing cutting, and eccentric abrasion, cutting edge breaking and other abnormal damageoccurring to the center hobbing cutter are effectively avoided; hobbing cutters and toothed cutters are subjected to interchange installing, soft soil excavation can be achieved, and in addition, hardrock can be subjected to expanding excavation; and the cutterhead swings up and down as well as leftwards and rightwards, and round and special-shaped fracture surfaces can be excavated.

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 Applications(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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