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Wear resistant cutting pick for coal mining and engineering

A technology of pick and engineering, applied in the field of wear-resistant picks for coal mining and engineering, can solve the problems of affecting the normal use of picks and the falling off of the tooth tips, so as to overcome the easy knock-off of the tooth tips, increase the strength, and be less brittle. Effect

Inactive Publication Date: 2007-04-18
杨晓军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the picks used in coal shearers are composed of a low-alloy structure pick body and a hard alloy tooth tip. The hard alloy tooth tip is welded to the head of the pick body by brazing. The head is subjected to strong extrusion and friction, and the pick body around the carbide tip wears off first, causing the tip to fall off, affecting the normal use of the pick

Method used

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  • Wear resistant cutting pick for coal mining and engineering
  • Wear resistant cutting pick for coal mining and engineering
  • Wear resistant cutting pick for coal mining and engineering

Examples

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Embodiment Construction

[0016] As shown in the drawings, the present invention consists of a hard alloy tooth tip 1 and a pick body 2, and a wear-resistant body 3 is arranged on the peripheral pick body 2 of the cemented carbide tooth tip 1, and the wear-resistant body 3 It is a cylinder, a cuboid, a polygonal prism or a sheet. Examples shown in accompanying drawings 1, 2, 3, and 4: the pick model is JGC102 / 35, and as shown in accompanying drawing 1, six cemented carbide cylinders are evenly embedded in the periphery of the cemented carbide tooth tip 1 as Wear-resistant bodies, each with a diameter of 3.5mm and a height of 15mm. Accompanying drawing 2 is that the pick body 2 of the present invention is provided with the rectangular parallelepiped wear-resistant body 3, and accompanying drawing 3 is provided with the flake wear-resistant body 3 on the pick body 2 of the present invention, and accompanying drawing 4 is the pick body 2 of the present invention Cylinders and plate-shaped wear-resistant ...

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Abstract

This invention relates to a kind of wearing pick for coal cutting and engineer. It is composed of horniness alloy point and picks body. There is wearing body in the surrounding pick body of the horniness alloy point. The invention improves the strength, hardness, wearing resistance of the pick, it is difficult to brittle fracture, overcome the electrophoresis that the pick wear and tear premature and it is easy to crash the sharp teeth. It improves the mechanical strength and fatigue resistance of pick, its life is 2-3 times than the general pick body.

Description

technical field [0001] The invention relates to a wear-resistant pick for coal mining and engineering. technical background [0002] At present, the picks used in coal shearers are composed of low-alloy structure pick body and hard alloy tooth tip. The hard alloy tooth tip is inlaid and welded on the head of the pick body by brazing. The head is strongly squeezed and rubbed, and the pick body around the carbide tip wears off first, causing the tip to fall off, affecting the normal use of the pick. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a wear-resistant pick for coal mining and engineering that can improve the wear resistance and strength of the pick body and prolong the life of the pick. [0004] The present invention adopts following technical scheme: [0005] The present invention consists of hard alloy tooth tip and pick body, and is characterized in that a wear-resistant body is arranged on the per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C35/183
CPCB25D2222/51B25D17/02E21C35/183E21C2035/1809E21C35/1833
Inventor 杨晓军
Owner 杨晓军