Wavy helical blade roller

A helical blade and wave-shaped technology, which is applied in the field of wave-shaped helical blade drums, can solve the problems of less lump coal, high cutting specific energy consumption, and large optimization space, so as to improve the lump coal rate, facilitate installation and operation, and avoid stress concentrated effect

Active Publication Date: 2015-07-01
CHINA UNIV OF MINING & TECH
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  • Abstract
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Problems solved by technology

The drum shearer is the most widely used coal mining machine. It cuts the coal seam through the picks on the shearer drum. However, most of the currently used drum shearers have high cutting specific energy consumption and lump coal Therefore, reducing the specific energy consumption of cutting and increasing the lump coal rate have always been the direction to improve the performance of the shearer
In recent years, although the cutting specific energy consumption of coal shearers has gradually decreased and the lump coal rate has gradually increased, there is still a lot of room for optimization

Method used

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  • Wavy helical blade roller
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Embodiment Construction

[0011] An implementation of the present invention will be further described below in conjunction with accompanying drawing:

[0012] Such as figure 1 As shown, the corrugated helical blade drum of the present invention is mainly composed of a cylinder hub 1, a corrugated helical blade 2, an end plate 3 and a pick pick 4. The cylinder hub 1 is cylindrical, and the head of the cylinder hub 1 is welded with an end plate 3, and pick-shaped picks 4 with different inclination angles are installed on the end plate 3, and there are a, b, c, d on the end plate 3 and e 5 helical blade section lines 5, the intercept is 20mm, and the inclination angles of the pick picks 4 installed on each section of a, b, c, d and e are 35°, 20°, 0° respectively , -7°, -15°; two helical blades 2 with wavy outer edges are welded on the cylinder hub 1, and the pick-shaped picks 4 on each helical blade 2 are arranged at intervals, and the two helical blades 2 There are a total of f-P11 helical blade secti...

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Abstract

The invention discloses a wavy helical blade roller which is suitable for a roller type mining machine. The wavy helical blade roller comprises a cylinder hub, helical blades, an end plate and pickaxe-type cutting teeth, wherein the cylinder hub is cylindrical; the end plate is welded on the head part of the cylinder hub; two helical blades are welded on the cylinder hub to form a double-end roller; the pickaxe-type cutting teeth are mounted on the end plate and the helical blade. The outer edges of the helical blades are wavy; on the same cutting line, a crest of one of the helical blade corresponds to a valley bottom of the other one of the helical blades to ensure that the total cutting thicknesses of the cutting lines are same; the pickaxe-type cutting teeth are sequentially mounted on the crest and at the valley bottom of the helical blades to realize different mounting height. The roller is high in coal breaking efficiency, high in lump coal rate, simple in structure and convenient to mount and operate.

Description

Technical field: [0001] The invention relates to a wave-shaped spiral blade drum, in particular to a wave-shaped spiral blade drum suitable for a drum shearer. Background technique: [0002] Coal is the most important energy in our country, and mining machinery is the main tool for coal mining. The drum shearer is the most widely used coal mining machine. It cuts the coal seam through the picks on the shearer drum. However, most of the currently used drum shearers have high cutting specific energy consumption and lump coal Therefore, reducing the specific energy consumption of cutting and increasing the lump coal rate has always been the direction to improve the performance of the shearer. In recent years, although the specific energy consumption of shearer cutting has gradually decreased and the lump coal rate has gradually increased, there is still a lot of room for optimization. Invention content: [0003] Technical problem: the purpose of the present invention is to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C25/10
CPCE21C25/10
Inventor 刘送永吴洪状杜长龙薛玉刚崔新霞李建平刘晓辉
Owner CHINA UNIV OF MINING & TECH
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