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Spiral blades for shearer drums, shearer drums and shearers

A technology of shearer drums and spiral blades, which is applied in cutting machinery, slitting machinery, earthwork drilling and mining, etc., can solve the problems of weak coal loading capacity of shearer drums, achieve reduction of labor force, small fluctuations, The effect of reducing friction

Active Publication Date: 2020-10-13
SANY HEAVY EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a spiral blade for a shearer drum, a shearer drum and a shearer, so as to solve the technical problem of weak coal loading capacity of the shearer drum in the prior art

Method used

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  • Spiral blades for shearer drums, shearer drums and shearers
  • Spiral blades for shearer drums, shearer drums and shearers
  • Spiral blades for shearer drums, shearer drums and shearers

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Embodiment Construction

[0022] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0023] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

[0024] It should be noted that the working face...

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Abstract

The invention relates to the technical field of coal production, in particular to a coal cutter drum, a spiral blade for the same and a coal cutter. The spiral blade comprises a first blade and a second blade which are sequentially connected from one end close to a working face to one end away from the working face, and spiral lead angle of the first blade is smaller than that of the second blade.The spiral lead angle of the first blade in the spiral blade is small than that of the second blade, the first blade can increase cutting tooth capacity, and the drum is stressed uniformly in the process of cutting, thereby being little in fluctuation and conducive to cutting; the second blade increases coal containing space, friction between coal and the blades is reduced, and coal throwing speed is increased, so that coal loading capacity of the drum is improved, manual labor is reduced, and coal mining efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of coal mining, in particular to a spiral blade for a shearer drum, a shearer drum and a shearer. Background technique [0002] With the continuous mining of coal, there are fewer and fewer medium-thick coal seams, and more and more thin coal seam working faces are mined. The market demand for thin coal seam shearers is increasing, and the drum shearer is currently the most widely used coal mining machinery. [0003] The drum shearer cuts the coal through the drum and then loads the coal. However, the diameter of the drum of the thin coal seam shearer is small, and the helical blades of the drum are relatively small, resulting in a relatively small coal storage space, weak coal loading capacity, and poor coal loading effect, which will affect the movement of the scraper. This will affect the coordination of the entire fully mechanized mining face. In addition, when the coal loading capacity is weak and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C25/10E21C35/18E21C35/19
CPCE21C25/10E21C35/18E21C35/19
Inventor 赵晋锋张祚明郑仰东
Owner SANY HEAVY EQUIP CO LTD
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