Wave spiral blade roller

A helical blade, wave-shaped technology, applied in the field of wave-shaped helical blade drum, can solve the problems of high cutting specific energy consumption, less lump coal, and large optimization space, and achieves the improvement of lump coal rate, convenient installation and operation, and stress avoidance. concentrated effect

Active Publication Date: 2017-04-19
CHINA UNIV OF MINING & TECH
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  • Description
  • Claims
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AI Technical Summary

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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Embodiment Construction

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

[0012] Such as figure 1 As shown, the wave-shaped spiral blade drum of the present invention is mainly composed of a cylinder hub 1, a wave-shaped spiral blade 2, an end plate 3, and a pick-shaped 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 e5 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 respectively 35°, 20°, 0°, -7°, -15°; two helical blades 2 with wavy outer edges are welded on the cylinder hub 1, the pick picks 4 on each helical blade 2 are arranged at intervals, and the two helical blades 2 are There are a total of f-P11 helical blade section li...

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Abstract

An undulant spiral blade roller is disclosed. The roller is suitable for a roller type mining machine and includes a cylinder hub (1), spiral blades (2), an end plate (3) and pick-shaped teeth (4). The cylinder hub (1) is cylindrical, the head of the cylinder hub (1) is welded with the end plate (3), the cylinder hub (1) is welded with two spiral blades (2) to form a double-end roller, and the pick-shaped teeth (4) are arranged and mounted on the end plate (3) and the spiral blades (2). The outer edges of the spiral blades (2) are undulated, and the crest of one spiral blade corresponds to the valley of another spiral blade in the same cutting line to make the total cutting thickness of each cutting line equal. The pick-shaped cutting teeth (4) are sequentially arranged and mounted at the crests and the valleys of the spiral blades to achieve different mounting height. The roller is high in coal-breaking efficiency and 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. Contents of the invention [0003] Technical problem: the purpose of the present invention i...

Claims

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Application Information

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Patent Type & Authority Patents(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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