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Drill bit

A drill bit and drill body technology, used in drill bits, drilling equipment, earth-moving drilling, etc., can solve problems such as affecting the drilling effect and limited drilling effect.

Inactive Publication Date: 2020-03-03
刘春英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the existing drill bit is drilling, there is only one structure for drilling, and there is no other auxiliary structure, the drilling effect is limited, and the soil and gravel during drilling will bury the drill bit, which will also affect the drilling effect

Method used

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  • Drill bit

Examples

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Effect test

Embodiment 1

[0016] A kind of drill bit, it is characterized in that: comprise drill body 1 and be positioned at the telescopic point body 2 of drill body 1 bottom, the both sides of described telescopic point body 2 are provided with telescopic connecting rod 3, the bottom of described telescopic connecting rod 3 is provided with Auxiliary tip 4, the upper end of the telescopic connecting rod 3 is provided with an umbrella-shaped shielding portion 5, the telescopic tip body 2 is connected to the drill body 1 through a screw 6, and the telescopic tip body 2 is provided with a threaded hole inside, The bottom of the telescopic tip body 2 is provided with a plurality of detachable and closed drill pieces 9 . Compared with ordinary drill bits, this application can provide telescopic tip 2 and auxiliary tip 4 for drilling. When the two types of tips are used for piling drilling, they can drive a stronger downward force when rotating, forcing the drilled place to be easier. It is dug downwards,...

Embodiment 2

[0018] A kind of drill bit, it is characterized in that: comprise drill body 1 and be positioned at the telescopic point body 2 of drill body 1 bottom, the both sides of described telescopic point body 2 are provided with telescopic connecting rod 3, the bottom of described telescopic connecting rod 3 is provided with Auxiliary tip 4, the upper end of the telescopic connecting rod 3 is provided with an umbrella-shaped shielding portion 5, the telescopic tip body 2 is connected to the drill body 1 through a screw 6, and the telescopic tip body 2 is provided with a threaded hole inside, The bottom of the telescopic tip body 2 is provided with a plurality of detachable and closed drill pieces 9 .

[0019] The number of the telescopic connecting rods 3 is at least three.

[0020] Both ends of the telescopic rod are provided with slots, and the telescopic rod is fixed on both sides of the drill body 1 through the slots.

[0021] The top of the drill piece 9 is configured as a cutt...

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Abstract

The invention belongs to the field of machining equipment and in particular to a drill bit. The drill bit comprises a drill body and a telescopic tip body located at the bottom of the drill body. Telescopic connecting rods are arranged on two sides of the telescopic tip body, auxiliary tips are arranged at the bottoms of the telescopic connecting rods, umbrella-shaped shielding parts are arrangedat the upper ends of the telescopic connecting rods, the telescopic tip bodies are connected to the drill body through a lead screw, threaded holes are formed in the telescopic tip bodies, and a plurality of separable or closeable drill pieces are arranged at the bottoms of the telescopic tip bodies. Compared with a common drill bit, the drill bit provided by the invention can provide the telescopic tip bodies and the auxiliary tips for drilling. In piling drilling, the two types of tips can drive a larger down force during rotation, so that the drilled place is more easily excavated downward.Moreover, the shielding parts at the upper ends of the telescopic connecting rods can guide soil or macadam splashed upward from the lower direction to two sides, so that a condition that the soil and macadam are accumulated ceaselessly upward to bury drill bit equipment is avoided.

Description

technical field [0001] The application belongs to the field of mechanical processing equipment, and in particular relates to a drill bit. Background technique [0002] In the drilling process, the drill bit is the main tool for breaking rock, and the wellbore is formed by breaking the rock with the drill bit. Whether a wellbore is formed well or not, the length of time it takes is not only related to the characteristics of the drilled formation rock and the performance of the drill bit itself, but also to the degree of matching between the drill bit and the formation. The reasonable selection of the drill bit plays an important role in increasing the drilling speed and reducing the overall cost of drilling. The drill bit is one of the important tools for oil drilling. Whether the drill bit adapts to the rock properties and its quality plays a very important role in the selection of drilling technology, especially in terms of drilling quality, drilling speed and drilling cos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/36
CPCE21B10/36
Inventor 刘春英
Owner 刘春英