Cold pressed wobbler drill bit for rock drilling

A plum-blossom drill and cold-pressing technology, applied in drill bits, drilling equipment, earthwork drilling, etc., can solve the problems of affecting the life of the side teeth, the inability to discharge the slag, and affecting the work efficiency, and achieve fast drilling speed and slag discharge area. Large, wear-reducing effect

Inactive Publication Date: 2018-11-23
DANYANG LANSI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] The existing plum blossom drill for rock drilling has a wedge-shaped symmetrical structure, and the slag discharge area is small. There is no water spray hole in the middle of the top of the head, and the s

Method used

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  • Cold pressed wobbler drill bit for rock drilling
  • Cold pressed wobbler drill bit for rock drilling

Examples

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Example Embodiment

[0009] Such as figure 1 with figure 2 As shown, the cold pressed plum drill for rock drilling of the present invention includes a head, and three arc-shaped slag discharge grooves 1 are evenly arranged along the circumference of the head, and the slag discharge grooves 1 intersect the top circular surface of the head. Three central bevel tooth holes 4 and a central water outlet hole 5 are arranged in the top circular surface; the slag discharge groove divides the head into three cone arc surfaces, and each cone arc surface is provided with two edge bevel tooth holes 3, bevel tooth holes Hard alloy bevel teeth are fixed in the middle; the slag discharge groove is provided with an edge water outlet 6 perpendicular to the axial direction of the head. The top circular surface is also provided with a slag discharge trench 7 connected to the slag discharge groove, and the water outlet hole on the top circular surface is arranged in the slag discharge trench. A bevel tooth hole on t...

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Abstract

The invention discloses a cold pressed wobbler drill bit for rock drilling comprising a head part; three curved slag discharge grooves are uniformly arranged along the circumference of the head part;the slag discharge grooves intersect the top circular surface of the head part; three tapered perforations and one water outlet are arranged in the top circular surface; the slag discharge grooves divide the head part into three conical arc surfaces, and two tapered perforations are arranged in each conical arc surface, cemented carbide bevel teeth are fixed in the tapered perforations; a drain hole perpendicular to the axial direction of the head part is disposed on the slag discharge groove. The invention has the advantages of large slag discharge area, fast drilling speed, uniform force, and reduced wear and simplified manufacturing process.

Description

technical field [0001] The invention relates to a plum-blossom drill, in particular to a cold-pressed plum-blossom drill for rock drilling. Background technique [0002] The existing plum blossom drill for rock drilling has a wedge-shaped symmetrical structure, and the slag discharge area is small. There is no water spray hole in the middle of the top of the head, and the slag material is blocked and cannot be discharged, which affects the work efficiency. In addition, due to the symmetrical arrangement of the teeth and side teeth, uneven force is caused, which affects the life of some side teeth. Contents of the invention [0003] Purpose of the invention: the present invention provides a cold-pressed torx drill for rock drilling to solve the above problems. [0004] Technical solution: A cold-pressed torx drill for rock drilling, including a head, and three arc-shaped slag discharge grooves are uniformly arranged along the circumference of the head, and the slag dischar...

Claims

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Application Information

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IPC IPC(8): E21B10/00E21B10/60
CPCE21B10/00E21B10/60
Inventor 王小玲
Owner DANYANG LANSI INFORMATION TECH CO LTD
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