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Abrasion-resistant tool bit

A cutter head and tooth head technology, applied in cutting machinery, earth-moving drilling, slitting machinery, etc., can solve the problem of non-wear-resistant service life of cemented carbide picks, and achieve improved service life, reasonable structural design, Avoid the effect of partial wear

Inactive Publication Date: 2017-03-22
新昌县东韩机械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the hard alloy picks have problems such as non-wear resistance and short service life during use

Method used

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  • Abrasion-resistant tool bit

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Embodiment Construction

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0014] see figure 1 , in an embodiment of the present invention, a wear-resistant cutter head includes a tooth body 1, a main tooth head 9, an auxiliary tooth head 13, a cutter head base 11 and a tooth handle 2, and the main tooth head 9 and the auxiliary tooth head The upper part of 13 is conical, the lower part of the main tooth head 9 and the auxiliary tooth head 13 is cylindrical, and the main tooth head 9 and the auxiliary tooth head 13 are composed of a ...

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Abstract

The invention provides an abrasion-resistant tool bit. The abrasion-resistant tool bit comprises a tooth body, a main tooth head, a tool bit base and a tooth handle. The upper portion of the main tooth head and the upper portions of auxiliary tooth heads are conical, and the lower portion of the main tooth head and the lower portions of the auxiliary tooth heads are cylindrical. The tool bit base is made of a cemented carbide material. A main cutting tooth groove is formed in the top surface of the tool bit base, and the lower portion of the main tooth head is embedded into the main cutting tooth groove. A plurality of auxiliary cutting tooth grooves are formed in the top surface of the tool bit base and located in the outer circle of the main cutting tooth groove. The lower portions of auxiliary tooth heads are embedded in the auxiliary cutting tooth grooves. A protruding rod is arranged in the center of the bottom surface of the tool bit base. A concave groove is formed in the top surface of the tooth body, and the protruding rod is embedded in the concave groove. The bottom surface of the tool bit base makes contact with the top surface of the tooth body and is fixedly connected with the top surface of the tooth body. A hole used for stress relief is formed in the bottom of the protruding rod. The tooth body is made of metal. The surface of the upper portion of the tooth body is covered with a hard-face alloy layer. The abrasion-resistant tool bit is reasonable in structural design, the abrasion resistance and impact resistance are improved, the tooth body is effectively protected, and the service life of the tool bit is prolonged.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a wear-resistant cutter head. Background technique [0002] Traditional coal and mine excavation and tunnel excavation and other drill bits are mainly composed of a base and a pick welded on the base. The base is made of ordinary metal materials such as chromium, manganese or tungsten steel, and includes two parts: a cylindrical gear shaft at the bottom and an umbrella-shaped tooth body at the top. The pick is made of cemented carbide material, its shape is similar to a bullet shape, and it is embedded in the top of the base (that is, the top center of the tooth body. However, the carbide pick is in use. There are problems such as non-wear resistance and short service life. Especially when encountering relatively hard rock formations, the traditional carbide picks are worn out after ten minutes of use, so the cost of use is very high and the efficiency is very low. How to im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C35/18E21C35/183E21C35/19
CPCE21C35/18E21C35/183E21C35/1835E21C35/19
Inventor 潘伟东
Owner 新昌县东韩机械有限公司
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