Double-knife drilling bit

A technology of drill bit and cutter body, which is applied in the direction of drill repair, drill tool accessories, drilling/drilling equipment, etc. It can solve the problems of not very long service life of the drill bit, affecting work efficiency, and large wear of the drill bit, so as to achieve simple design, Strong practicability and fast speed effect

Inactive Publication Date: 2015-11-25
苏小明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The drill bit is a tool used to drill through holes on solid materials. With the rapid development of the industry, the requirements for the drill bit are getting higher and higher. According to different require

Method used

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  • Double-knife drilling bit

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Example Embodiment

[0018] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples cited are only used to explain the present invention, and are not used to limit the scope of the present invention.

[0019] Such as figure 1 As shown, a dual-blade drill bit is connected to the front end of a drill body, the drill bit includes a trough 1 and a cutter body 2, and the trough 1 is rotatably connected to the front end of the drill body, so The groove body 1 is cylindrical, the knife body 2 is provided with two, and the two knife bodies 2 are arranged side by side in the middle of the groove body 1 and extend forward, and the groove body 1 drives the knife body 2 Rotation, the connection between the tank body 1 and the drill bit is provided with a fixed valve 3 for locking the rotation of the tank body 1, and the outer side of the tank body 1 is provided with a plurality of oil injections connected to the cutter body 2. Hole 4...

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Abstract

The invention provides a double-knife drilling bit. The drilling bit is connected to the front end of a drill body and comprises a groove body and two knife bodies, wherein the groove body is rotationally connected to the front end of the drill body and is cylindrical; the two knife bodies are arranged in the middle of the groove body side by side and extend forwards, and the groove body drives the rotation of the knife bodies; a standing valve used for locking the rotation of the groove body is arranged at the connection position of the groove body and the drilling bit, and a plurality of oil charging holes communicated to the knife bodies are formed in the outer side of the groove body. The double-knife drilling bit has the beneficial effects that the rotation speed of the drilling bit is high, the impact force is strong, and the design is simple; the standing valve can be locked to fix the groove body not to rotate or can be opened to enable the groove body to rotate, the demands are adapted, and the practicality is strong.

Description

technical field [0001] The invention mainly relates to the field of drill bits, in particular to a double-cutter drill bit. Background technique [0002] The drill bit is a tool used to drill through holes on solid materials. With the rapid development of the industry, the requirements for the drill bit are getting higher and higher. According to different requirements, different drill bits need to be replaced, which is very inconvenient to replace and affects the work. Efficiency, and the wear of the drill bit is relatively large, and the service life of the drill bit is often not very long. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a double-cutter drill bit with fast rotating speed, strong impact force, simple design, fixed valve locking can fix the groove body not to rotate or open to make the groove body rotate, adapt to the demand, and has strong practicability. [0004] The technical solution of the ...

Claims

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Application Information

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IPC IPC(8): B23B51/00
CPCB23B51/00B23B2251/24
Inventor 苏小明
Owner 苏小明
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