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A bottom-clearing drum shearer

A technology for shearers and drums, applied in the field of bottom-clearing drum shearers, can solve problems such as increased costs and reduced working efficiency of shearers, prolong service life, reduce mechanical manufacturing costs and process requirements, and improve installation The effect of the coal effect

Active Publication Date: 2018-04-10
国科中迈(徐州)能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem of forming "triangular coal" has not been effectively solved. After "triangular coal" is formed, manual or other auxiliary equipment is required to clean it up. The working efficiency of the shearer is reduced, and additional costs will be added.

Method used

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  • A bottom-clearing drum shearer
  • A bottom-clearing drum shearer
  • A bottom-clearing drum shearer

Examples

Experimental program
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Effect test

Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0021] like Figure 1 to Figure 5 As shown, a bottom-clearing roller shearer includes a structurally symmetrical left cutting part 1 and a right cutting part 5, a structurally symmetrical left traction part 2 and a right traction part 4, a structurally symmetrical left walking part 6 and The right traveling part 7, the middle control box 3, the left cutting part 1 is hinged with the left drawing part 2 through the connecting ear, the right cutting part 5 is hinged with the right drawing part 4 through the connecting ear, and the left traveling part 6 and the right traveling part 7 are respectively It is fixedly installed on the side of the left traction part 2 and the right traction part 4, and the left traction part 2 and the right traction part 4 are respectively fixedly docked on both sides of the middle control box 3, and each cutting part includes a cutt...

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Abstract

The invention discloses a bottom-clearing roller coal mining machine. Each cutting part of the coal mining machine includes two cutting drums, the first cutting drum (a14) and the first cutting drum transmission chamber casing (a6 ) extends to the coal wall (15) through the transition section shell (a3), and the rear part of the first cutting drum drive chamber shell (a6) extends beyond the middle trough of the scraper conveyor and the trough side (10) of the transition trough , and at the same time the first cutting drum drive chamber casing (a6) bends downward. The first cutting drum of the present invention has enough undercover to avoid the formation of "triangular coal" at the head and tail of the scraper conveyor, and the second cutting drum has a smaller production distance to improve the coal loading effect and ensure sufficient load bearing Strength; at the same coal mining height, two cutting drums with smaller diameters are used in pairs to ensure the full height of one-time mining, prolong the service life of the cutting drum, optimize the overall performance of the cutting part, and have good adaptability to changes in coal seam thickness. Reduce cost and process requirements.

Description

technical field [0001] The invention relates to a coal shearer, in particular to a bottom-clearing drum shearer. Background technique [0002] The common coal mining process generally requires a full-height mining. In order to adapt to the mining height range of the shearer, it is usually necessary to increase the diameter of the cutting drum on the cutting part accordingly. However, the larger the diameter of the cutting drum, the greater the cutting force required. Correspondingly, the power of the cutting part and the whole machine needs to be increased. The performance requirements of the shearer are higher, and the mechanical manufacturing cost and process requirements should also be corresponding At the same time, the larger the diameter of the cutting drum, the worse the adaptability of the shearer to the change of coal seam thickness. [0003] In order to make the cutting drum of the shearer adapt to the change of coal seam thickness and ensure flexible mining, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C25/06E21C25/10E21C35/22
CPCE21C25/06E21C25/10E21C35/22
Inventor 杜长龙蒋庆胜陆健伟邢方方张猛杜迈
Owner 国科中迈(徐州)能源科技有限公司
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