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Rock-breaking cutter head and roadheader

A roadheader and cutter head technology, which is applied to mining equipment, tunnels, earthwork drilling and mining, etc., can solve the problems of low rock breaking efficiency and low effective force, so as to improve rock breaking efficiency, reduce abnormal damage, and reduce cutter head vibration effect

Active Publication Date: 2022-04-22
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

The existing positive conical cutterhead has a conical surface protruding towards the rock surface, a plurality of hobs are installed on the conical surface and arranged vertically to the conical surface, and the hobs are aligned with the axial direction (the central axis of the cutterhead) With a relatively large angle, the effective force of the positive pressure of the hob to break the rock is small, and the rock breaking efficiency is low

Method used

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  • Rock-breaking cutter head and roadheader
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  • Rock-breaking cutter head and roadheader

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Embodiment Construction

[0031] The details of the present invention can be understood more clearly with reference to the accompanying drawings and the description of specific embodiments of the present invention. However, the specific embodiments of the present invention described here are only for the purpose of explaining the present invention, and should not be construed as limiting the present invention in any way. Under the teaching of the present invention, the skilled person can conceive any possible modification based on the present invention, and these should be regarded as belonging to the scope of the present invention.

[0032] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may be present.

[0033] Please...

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Abstract

The present invention proposes a rock-breaking cutterhead and a roadheader, which relate to the technical field of engineering tunnel equipment. The cutterhead body has a rotation axis, the cutterhead body rotates around the rotation axis, and one end of the cutterhead body has a In the recessed cloth knife groove, a plurality of hobs can be rotatably installed in the cloth knife groove. The rock-breaking cutter head and the tunneling machine proposed by the invention are beneficial to improving the rock-breaking efficiency of the hob.

Description

technical field [0001] The invention relates to the technical field of engineering tunnel equipment, in particular to a rock-breaking cutterhead and a roadheader. Background technique [0002] Tunneling machine is a kind of comprehensive equipment that performs continuous operations by mechanically crushing rocks, removing slag and supporting, and is widely used in hydropower, railway, and subway tunnel projects. The cutter head is the key component of the roadheader for excavation. The common rock breaking method of the cutter head is the positive extrusion of the hob to break the rock. Under the action of the thrust exerted by the longitudinal oil cylinder, the disc-shaped hob on the cutter head is pressed into the rock; the cutter head is driven by the rotating device to drive the hob to revolve around the central axis of the cutter head, and at the same time, each hob also revolves around its own cutter head. The shaft rotates to make the hob roll continuously on the ro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/10
CPCE21D9/1006
Inventor 张家年贾连辉李翔孙恒刘点点
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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