Cutting disc type rotating arm heading machine cutting device

A technology of rotating arms and cutting blades, which is applied in the field of gas, roadway roof treatment, and roadheader cutting devices. It can solve problems such as roof accidents, threats to the safety of shaft construction, and broken roadway roofs, so as to prevent roof accidents and protect the integrity of the roof. performance, and the effect of ensuring safe production
CN103670397AInactive Publication Date: 2014-03-26ηŽ‹εΊ†ε†›
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
ηŽ‹εΊ†ε†›
Publication Date
2014-03-26
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to treatment of gas under a coalmine well and laneway roofs, in particular to a heading machine cutting device capable of preventing coal and gas outburst and effectively reducing breaking of laneway roofs. The cutting disc type rotating arm heading machine cutting device comprises the following components: a cutting head, a cutting arm, a power transmission system and a power unit, wherein rotating arms on the cutting head are driven by a rotary arm motor to rotate at low speed; cutting discs mounted on the rotating arms are driven by a main power system to rotate at high speed and rotate together to cut coal; vibration is not generated when the cutting discs rotate at high speed to cut coal-rock mass, so that a vibration source for generating mechanical waves is eliminated, the roof completeness of a working face is effectively protected, the occurrence of a roof accident is prevented, the energy is prevented from being delivered to the deep coal-rock mass, the formation condition of coal and gas outburst is prevented, the occurrence of coal and gas outburst phenomenon is completely prevented, and the safety production in a coal mine is guaranteed.
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Description

technical field

[0001] The invention relates to gas and roadway roof control in coal mines, in particular to a roadheader cutting device capable of preventing coal and gas from protruding and effectively reducing roadway roof breakage, and belongs to the field of mining machinery.

[0002] Background technique

[0003] In coal mine excavation roadway construction, when the existing roadheader cutting device is used to cut coal and rock mass, the rock mass will generate strong mechanical waves. After the surrounding rock is affected by the mechanical wave, the pressure on the coal body changes periodically, forming a tamping effect, causing the pressure between the rock formation and the coal body to be several times or ten times that of the original, causing the coal body to be broken, and a large amount of adsorbed gas to be decomposed into a free state. As the coal body is broken, its fluidity increases, the gaps in the coal body shrink, the volume of the coal body is re...

Claims

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