Thin coal seam shearer and its chute type coal retaining mechanism

Abstract

The invention discloses a thin-seam coal mining machine and a chute type coal blocking mechanism thereof. The coal mining machine comprises a rocking arm, the chute type coal blocking mechanism and a rotary drum, wherein the rocking arm comprises a rocking arm shell; the chute type coal blocking mechanism comprises a main coal blocking plate, a connecting rod, a chute pin, a chute plate and an auxiliary coal blocking plate; the main coal blocking plate of the chute type coal blocking mechanism is arranged in an interval formed between the end faces of the rotary drum and the rocking arm; the auxiliary coal blocking plate of the chute type coal blocking mechanism is arranged above the top surface of the rocking arm; the main coal blocking plate is connected with the rocking arm shell, is hinged with the connecting rod and is supported and limited by the connecting rod; the connecting rod is connected with a chute in the chute plate and can slide from a first end to a second end; the chute plate is fastened to the rocking arm shell and is located; the auxiliary coal blocking plate is hinged with the main coal blocking plate. According to the thin-seam coal mining machine, a coal charging effect can be improved; by utilizing the interval between the end faces of the rotary drum and the rocking arm and the space above the top surface of the rocking arm, a coal blocking function is realized without influencing the normal production operation.

Description

technical field [0001] The invention belongs to the technical field of coal mining machinery, and relates to a thin coal seam shearer, in particular to a chute type coal retaining mechanism of a thin coal seam shearer. Background technique [0002] With the need of reliability requirements for thin coal seam shearer, the power of the rocker arm is increased, the volume is increased, and the coal loading port of the rocker arm is correspondingly reduced; at the same time, due to the limitation of the mining height of the thin coal seam, the diameter of the drum is relatively small, and the coal loading of the drum is relatively small. The height of the blade is relatively reduced; in summary of the above reasons, the coal loading effect of the thin coal seam shearer is poor. [0003] In order to improve the coal loading effect of the thin coal seam shearer, the owner adopts various forms of coal baffles to solve this problem; but the effect cannot meet the requirements of mod...

AI Technical Summary

Problems solved by technology

[0002] With the need of reliability requirements for thin coal seam shearer, the power of the rocker arm is increased, the volume is increased, and the coal loading port of the rocker arm is correspondingly reduced; at the same time, due to the limitation of the mining height of the thin coal seam, the diameter of the drum is relatively small, and the coal loading of the drum is relatively small. The height of the blade is relatively reduced; in view of the above reasons, the coal loading effect of the thin coal seam shearer is poor

[0003] In order to improve the coal loading effect of the thin coal seam shearer, the owner adopts various forms of coal baffles to solve this problem; but the effect cannot meet the requirements of modern and efficient fully mechanized mining: if the thickness of the portal coal baffle is large, it often affects The coal loading distance of the drum, and the height is not small, it often cannot play a good coal retaining effect on the floating coal, especially when the mining height range changes greatly; another example is the arc-shaped coal retaining board, the cantilever connection strength of itself There are deficiencies, and at the same time, when changing directions such as oblique cutting, the turning of the arc-shaped coal retaining plate has greater requirements on the mining height and actual mining height, which cannot be well satisfied for efficient mining

For high-efficiency fully mechanized mining, the existing mining status of thin coal seam shearers cannot well meet the demand

[0004] In view of this, there is an urgent need to find a new structure to solve the problem of the coal loading effect of the thin coal seam shearer for the problems existing in the structural arrangement of the rocker arm of the high-power thin coal seam shearer

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