Pneumatic cleaning and drag reduction device for reciprocating coal cutting path of plow head

Abstract

The invention relates to the technical field of underground coal mine thin coal seam coal plough exploitation, in particular to a pneumatic cleaning and resistance reducing device for a coal plough head reciprocating coal cutting path. The device mainly comprises pneumatic cleaning brushes installed on the front side and the back side of the coal plough head coal cutting path, resistance reducing sliding wheels installed at the bottom of a coal plough head and a high-pressure gas delivery pipeline, wherein the pneumatic cleaning brushes and the coal plough head are connected through thread fastening devices. The pneumatic cleaning and resistance reducing device is characterized in that obstacles on the coal plough head reciprocating coal cutting path are blown and removed by adopting pneumatic cleaning brush bodies, and the coal plough head is borne by the resistance reducing sliding wheels, so that sliding friction of the coal plough head in the reciprocating coal cutting path is changed into rolling friction. According to the pneumatic cleaning and resistance reducing device, on one hand, accumulated coal and rock on the coal plough head reciprocating coal cutting path can be removed, and therefore the resistance of the obstacles on the coal cutting path is reduced; on the other hand, the convenient reciprocating sliding effect of the coal plough head can be achieved, the friction resistance of the coal plough head is reduced, abrasion of the coal plough head and a traction plough chain is reduced, the output working efficiency of a plough head driving motor is improved, and the normal service life of a coal plough is prolonged.

Description

technical field

[0001] The invention relates to the technical field of coal plow mining for thin coal seams in underground coal mines, in particular to a plow plow head reciprocating coal cutting path pneumatic cleaning and drag reduction device. Background technique

[0002] my country's thin coal seam has outstanding advantages such as abundant reserves, wide distribution and local concentration, and good coal quality. At the same time, with the development of the coal mining industry in recent years, the mining of thin coal seams has been put on the agenda, and mining has been implemented in many coal mining enterprises. thin coal seam. With the maturity of plow mining thin coal seam technology, the application in thin coal seam is also becoming more and more important. Through the use of coal plows in the mine, it is found that the existing coal plows have major disadvantages such as large frictional resistance between the plow head, the conveyor and the floor, and low m...

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