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Five-wing fourteen-tooth anti-concretion drill bit

An anti-nodule and drill bit technology, used in drill bits, drilling equipment, earth-moving drilling, etc., can solve problems such as drill bit fatigue and unusability, and achieve the effects of increasing propulsion pressure, reducing friction load, and reducing flash temperature phenomenon.

Pending Publication Date: 2021-08-27
金沙县仁德钻探工具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Φ75mm, Φ94mm, and Φ105mm are widely used in the prior art, and the drill bits in such a layout are prone to friction sparks in the pyrite concretion rock layer, resulting in fatigue, making them unusable

Method used

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  • Five-wing fourteen-tooth anti-concretion drill bit
  • Five-wing fourteen-tooth anti-concretion drill bit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] refer to Figure 1-2 As shown, the present invention provides a five-wing fourteen-tooth anti-tuberculosis drill bit, which includes a drill body 1, and takes the center of the drill body 1 as a circle to make a ring of cutting tooth lines 1a, a second ring of cutting tooth lines 1b, The three-ring cutting tooth line 1c, the fourth-ring cutting tooth line 1d, and the fifth-ring cutting tooth line 1e, these five cutting tooth lines are used as auxiliary lines when the drill bit is processed, and the first ring cutting tooth line 1a is located outside the drill body 1. The outer edge of the drill body 1 is provided with five drill teeth A2, the five drill teeth A2 are located in the first plane and the center of the tooth surface of the drill teeth A2 is located on a ring cutting tooth line 1a, between the side walls of the two adjacent drill teeth A2 A slag discharge groove is formed in between, and five drill teeth B3 are arranged near the inner side of the drill tooth ...

Embodiment 2

[0020] On the basis of the above embodiments, another embodiment of the present invention is that an included angle 10 is formed between the center extension lines of two adjacent drill teeth A2, and the angle of the included angle 10 is 72°, so that the drill teeth A2 Located in the same circle center, the distance between the drill teeth A2 is equal, the second plane is 10mm higher than the first plane, and the third plane is 1.5mm higher than the second plane, so that the whole drill bit is stepped, forming an umbrella-like dynamic during rotation , Favorable slag discharge and water rejection.

Embodiment 3

[0022] On the basis of the above embodiments, another embodiment of the present invention is that the diameter of the drill bit body (1) is 98-105mm. The distance difference between the first-ring cutting tooth line 1a and the second-ring cutting tooth line 1b is 2mm, so that during the rock crushing process, rocks not cut by this 2mm will fall by themselves under the action of external force, and the fourth-ring cutting tooth line The diameter difference between 1d and the five-ring cutting tooth line 1e is 4mm, and the side wall surface of the drill tooth A2 is provided with a gage bar 9 .

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Abstract

The invention discloses a five-wing fourteen-tooth anti-concretion drill bit. The five-wing fourteen-tooth anti-concretion drill bit comprises a drill bit body, wherein a first-ring cutting tooth line, a second-ring cutting tooth line, a third-ring cutting tooth line, a fourth-ring cutting tooth line and a fifth-ring cutting tooth line, of which the diameters are sequentially reduced are made by using the center of the drill bit body as a circle point, and the first-ring cutting tooth line is located outside the drill bit body. Five drill teeth A are arranged on the outer edge of the drill bit body and located in a first plane, the tooth surface centers of the drill teeth A are located on the first-ring cutting tooth line, five drill teeth B are arranged close to the inner sides of the drill teeth A, the five drill teeth B are located in a second plane, and the tooth surface centers of the drill teeth B are located on the second-ring cutting tooth line. The drill bit body is further provided with a drill tooth C, a drill tooth D, a drill tooth E and a drill tooth F. The invention aims to provide the five-wing fourteen-tooth anti-concretion drill bit, so that the friction load of the drill bit is reduced, and the drill bit can be efficiently suitable for drilling work of yellow iron concretion.

Description

technical field [0001] The invention relates to the technical field of drill bits, in particular to a five-wing fourteen-tooth anti-tuberculosis drill bit. Background technique [0002] The rocks in Guizhou Province are the hardest, and there are many pyrite nodules formed in the rocks and coal seams. Many coal mines are difficult to drill due to gas extraction, which greatly affects the normal production of coal mines. The most typical one is the Jinsha County mining area in Bijie area. The mines here are basically high-gas mines or outburst mines. The coal mines in Xinhua Township, Jinsha County have the most concentrated pyrite nodules underground. The hardness of pyrite nodules is basically the same as that of basalt and granite. Friction sparks are generated, and this friction flash temperature phenomenon will cause high-temperature micro-carbonization reaction of the diamond composite blade, thereby causing friction fatigue of the diamond blade. Widely used in the pri...

Claims

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Application Information

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IPC IPC(8): E21B10/42E21B10/43E21B10/60
CPCE21B10/42E21B10/43E21B10/602
Inventor 钟建设刘湘
Owner 金沙县仁德钻探工具有限公司
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