Mine hard alloy tooth

A cemented carbide tooth and mining technology, which is applied in the field of cemented carbide teeth, can solve the problems of limited change, fast wear of alloy teeth, and low service life of drilling tools, and achieves the effect of improving height and having broad application prospects.

Inactive Publication Date: 2009-11-04
苏州虹锐管理咨询有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

For cemented carbide conical teeth and elastic teeth, although the crown of the alloy teeth has been improved, the contact area between the alloy teeth and the broken rock is small and the change is limited. Although the drilling speed is faster, the wear of the alloy teeth is faster , the service life of the drilling tool is not high

Method used

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  • Mine hard alloy tooth
  • Mine hard alloy tooth
  • Mine hard alloy tooth

Examples

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Embodiment Construction

[0020] The cemented carbide mining tooth composed of a multi-layer tooth crown can not only avoid the wear interface of the single-layer tooth during use, the wear interface of the tooth is getting larger, and the friction force at the contact interface between the alloy tooth and the broken rock formation is too large, The drill had to be taken out of service. At the same time, it can also avoid the defect that the double-layer teeth contact the broken rock formation at the beginning because the interface area is too small, and the alloy teeth wear quickly during the use of the drilling tool, resulting in a short service life of the drilling tool.

[0021] Cemented carbide teeth for mining mainly include a tooth body and a tooth crown. The shape of the tooth body is cylindrical, and a tooth crown is set on the upper end of the tooth body, such figure 1 As shown, the tooth crown includes top and side parts, and the profile of the top of the tooth crown is a convex arc; the pro...

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Abstract

The invention provides a mine hard alloy tooth, which comprises a tooth body and a tooth crown, wherein the tooth crown is arranged on the tooth body and comprises a top and a lateral part, and the outline of the top of the tooth crown has a shape of a convex arc line; the outline of the lateral part of the tooth crown consists of three sections, the first section of the outline has a shape of a straight line, a concave arc line or a convex arc line, the second section of the outline has a shape of a straight line, a concave arc line or a convex arc line, the third section of the outline has a shape of a straight line, a concave arc line or a convex arc line, and the first section of the outline, the second section of the outline and the third section of the outline are in transitional engagement with one another. The multilayer mine hard alloy tooth not only can improve the tooth-revealing height of the hard alloy, but also can conveniently control the contact area of the hard alloy tooth and a broken rock stratum; and the mine hard alloy tooth is widely applied to mines, water wells and geological drilling.

Description

technical field [0001] The invention relates to a cemented carbide tooth used on a mining drill bit, belonging to the technical field of mining drilling tool manufacturing. Background technique [0002] At present, in the selection of cemented carbide teeth for mining, the crown shape of the alloy teeth is single, or spherical teeth, or conical spherical teeth, or elastic teeth, and these types of alloy teeth are also used in the cloth teeth. combination. In the design of cemented carbide teeth, carbide ball teeth are called single-layer teeth, that is, there is only one parameter at a certain tooth height, the ball head R; carbide taper ball teeth and elastic teeth are called double-layer teeth Teeth, that is, there are two parameters at a certain tooth height, the ball head R and the cone angle or two ball heads R. Chinese patent 00230273.X discloses a cemented carbide tooth for a drill bit, including a tooth body and a tooth crown, and the shape of the tooth crown is he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/46
Inventor 李雄明陆庆忠刘华平
Owner 苏州虹锐管理咨询有限公司
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