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Pickaxe-shaped pick

A pick and pick-type technology, which is applied in the field of picks, can solve the problems of uneven wear of picks, shedding of hard alloy cutter heads, and high consumption, so as to improve the life of picks, reduce consumption of picks, and uniform wear Effect

Inactive Publication Date: 2012-05-16
吕增和
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because during the cutting process of the cutting mechanism of the coal shearer, the cutting depth of the broken coal is about 3 to 4 cm deep. Since the tooth body itself is a round table, the pick cannot rotate smoothly, thus causing the pick The wear is extremely uneven, the carbide tip falls off and is scrapped, the life of the pick is very low, and the consumption is high, which has been an unresolved problem for many years

Method used

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  • Pickaxe-shaped pick
  • Pickaxe-shaped pick

Examples

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Embodiment Construction

[0015] see figure 1 , a pick-type pick, including a pick body and a hard alloy bit 2, the pick body is composed of a pick head 1 and a pick shank 3, and the hard alloy bit 2 is embedded in the pick The front end of the tooth head 1, the said pick head 1 is in the shape of a truncated cone, the conical surface of the said pick head 1 is provided with three spiral ribs 7, and the outer surface of the said pick head 1 is provided with hard alloy resistant Abrasive material layer 4, the pick shank 3 is inserted into the tooth shoe 5 and cooperates with the tooth shoe 5 as a shaft and sleeve, the outer surface of the pick shank 3 is coated with a solid lubricating film layer 8, and the The tooth shoe 5 is fixed on the tooth holder 6 .

[0016] The embodiment is only for the convenience of understanding the technical solution of the present invention, and does not constitute a limitation to the protection scope of the present invention. Any simple modification, equivalent change an...

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Abstract

The invention discloses a pickaxe-shaped pick which comprises a pick body, a cemented carbide cutter head; the pick body comprises a pick head and a pick handle; the cemented carbide cutter head is inlaid at the front end of the pick head; a cemented carbide wear-resistant material layer is disposed on the external surface of the pick head; the pick handle is inserted in a pick shoe, and is engaged with the pick shoe as a shaft and a sleeve; the pick head has a truncated cone shape; the conical surface of the pick head is provided with spiral fins; the pick shoe is fixed on a pick seat. When the pickaxe-shaped pick is working, the pick is worn out uniformly; thus the service life of the pick is increased, and the using cost is reduced.

Description

Technical field: [0001] The invention relates to a pick, in particular to a pick-shaped pick in a cutting mechanism of a coal shearer. Background technique: [0002] At present, there are many kinds of ordinary picks sold on the market, but there are many problems. First, ordinary picks can still be used when working on soft rock mass. Experience accelerated wear and cannot effectively protect the center alloy. When the pick wears to a certain extent, the center alloy will fall off, resulting in shortened service life of the pick and leading to early scrapping. Secondly, ordinary picks The use of teeth is restricted, which is unfavorable for popularization and use. Pick picks are mainly used in the cutting mechanism of underground boring machines, and later in the cutting mechanism of coal shearers. Because during the cutting process of the cutting mechanism of the coal shearer, the cutting depth of the broken coal is about 3 to 4 cm deep. Since the tooth body itself is a ...

Claims

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Application Information

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IPC IPC(8): E21C35/18
Inventor 吕增和
Owner 吕增和
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