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High abrasion-proof diamond composite cutter bit

A composite pick and diamond technology, applied in cutting machinery and other directions, can solve the problems of non-wear-resistance of pick shank, insignificant effect, damage and failure of picks, etc., so as to improve overall life, improve mining efficiency, and reduce mining costs. Effect

Inactive Publication Date: 2008-12-24
HUNAN FEIRAY COMPOSITE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, although the hard alloy pick head used has better wear resistance than steel, it still cannot meet the service life requirements, and due to the poor life of this kind of pick, it leads to frequent replacement of picks, making The efficiency of mining machinery cannot be fully utilized
At the same time, because the pick shank is made of alloy steel and other materials, the pick shank is extremely non-wear-resistant, causing the carbide pick head to fall off prematurely, resulting in premature damage and failure of the entire pick. The tooth shank is heat treated or a layer of wear-resistant welding rod is surfacing on the surface of the pick shank to increase the wear resistance and achieve the purpose of keeping the diameter, but the effect is not obvious

Method used

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  • High abrasion-proof diamond composite cutter bit
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  • High abrasion-proof diamond composite cutter bit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: as shown in Figure 1, Figure 2, Figure 3, Figure 4 and Figure 5 Shown, a kind of high wear-resisting diamond composite pick of the present invention, it comprises pick shank 1, pick seat 2 and pick head 3, pick seat 2 is connected to an end of pick handle 1, pick head 3 It is fixed in the pick holder 2, and the said pick holder 2 is made of hard alloy material, and the hard alloy pick holder 2 has good wear resistance, which ensures the radial stability of this part during use. The connection between the pick head 1 and the pick holder 2 can be silver brazing, or copper brazing, or cold pressure interference press-in, or hot-press interference press-in. The connection between the pick holder 2 and the pick shank 1 can also be silver brazing, or copper brazing, or cold pressure interference press-in, or hot-press interference press-in. In this embodiment, the connecting end of the pick shank 1 and the pick holder 2 is provided with a connecting portion 1...

Embodiment 2

[0034] Embodiment 2: as shown in Figure 1, Figure 5 , Figure 6, Figure 7 and Figure 8 Shown, a kind of high wear-resisting diamond composite pick of the present invention, it comprises pick shank 1, pick seat 2 and pick head 3, pick seat 2 is connected to an end of pick handle 1, pick head 3 It is fixed in the pick holder 2, and the said pick holder 2 is made of hard alloy material, and the hard alloy pick holder 2 has good wear resistance, which ensures the radial stability of this part during use. The connection between the pick head 1 and the pick holder 2 can be silver brazing, or copper brazing, or cold pressure interference press-in, or hot-press interference press-in. The connection between the pick holder 2 and the pick shank 1 can also be silver brazing, or copper brazing, or cold pressure interference press-in, or hot-press interference press-in. In this embodiment, the connecting end of the pick handle 1 and the pick holder 2 is provided with a pick holder accom...

Embodiment 3

[0035] Embodiment 3: as shown in Fig. 1, Fig. 2, Fig. 3, Figure 4 and Figure 5Shown, a kind of high wear-resisting diamond composite pick of the present invention, it comprises pick shank 1, pick seat 2 and pick head 3, pick seat 2 is connected to an end of pick handle 1, pick head 3 It is fixed in the pick holder 2, and the said pick holder 2 is made of hard alloy material, and the hard alloy pick holder 2 has good wear resistance, which ensures the radial stability of this part during use. The connection between the pick head 1 and the pick holder 2 can be silver brazing, or copper brazing, or cold pressure interference press-in, or hot-press interference press-in. The connection between the pick holder 2 and the pick shank 1 can also be silver brazing, or copper brazing, or cold pressure interference press-in, or hot-press interference press-in. In this embodiment, the connecting end of the pick shank 1 and the pick holder 2 is provided with a connecting portion 101, and...

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Abstract

The invention discloses a high wear-resistance diamond composite cutting pick, comprising a cutting pick handle, a cutting pick seat and a cutting pick head, wherein the cutting pick seat is connected with one end of the cutting pick handle; the cutting pick head is fixed inside the cutting pick seat; and the cutting pick seat is made of hard alloy materials. The high wear-resistance diamond composite cutting pick is simple and compact in structure and strengthens the effective gauge protection of the cutting pick seat, so as to prolong the overall service life of the cutting pick and improving the mining mechanical efficiency.

Description

technical field [0001] The invention mainly relates to the field of coal mines and mining equipment, in particular to a high wear-resistant diamond composite pick used for equipment such as coal shearers and roadheaders. Background technique [0002] In the prior art, coal mining and excavation picks are the key components of large coal shearers and roadheaders. Generally, carbide pick heads and alloy steel are welded (brazed) together, which are mainly used in mining in coal fields. In mining fields such as coal and roadway excavation, with the increasing demand for resources, large-scale mining machinery is used more and more widely, so higher requirements are put forward for the performance of mining picks. [0003] At present, although the hard alloy pick head used has better wear resistance than steel, it still cannot meet the service life requirements, and due to the poor life of this kind of pick, it leads to frequent replacement of picks, making The efficiency of mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C35/18
Inventor 周志平蒋诗军杨世珍罗利刚潘飞
Owner HUNAN FEIRAY COMPOSITE MATERIAL
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