Diamond bit used for engineering investigation and its making method

A technology of diamond drill bit and engineering survey, which is applied in the direction of drill bit, drilling equipment, earthwork drilling and mining, etc., which can solve the problems of unsatisfactory drill bit diameter protection effect, reduced service life, and single structure, so as to achieve improved effect, improved efficiency, and reduced contact area effect

Pending Publication Date: 2018-10-23
WUHAN WAN BANG LASER DIAMOND TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the drill bits made by these two methods are relatively simple and single in structure, they are not effective for drilling into hard and dense rock formations and for engineering investigations.
Although the drill bit manufactured by the electroplating method has wide adaptability and high drilling speed, the service life of the drill bit is reduced due to the unsatisfactory effect of the diameter of the drill bit.

Method used

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  • Diamond bit used for engineering investigation and its making method
  • Diamond bit used for engineering investigation and its making method
  • Diamond bit used for engineering investigation and its making method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 , figure 2 A diamond drill bit for engineering survey shown includes a drill steel body 1 and fan-shaped cutting teeth 2 arranged at the front end of the drill bit steel body 1. A nozzle 3 is arranged between adjacent two fan-shaped cutter teeth 2. The number of nozzles is Eight, the width of each nozzle is 6.5mm, and the depth of 9 inner and outer water tanks is 1.5mm;

[0029] Such as image 3 As shown, the fan-shaped cutter 2 is composed of a fan-shaped cylindrical cutter 4 and a fan-shaped trapezoidal cutter 5, image 3 The fan-shaped cylindrical cutting teeth in 4 ( image 3 The polyhedron ABDCGEFH in the composition), the fan-shaped trapezoidal cutting tooth 5 (polyhedron CDLKJIHG is formed); the front cutting surface 5.1 of the sector-shaped trapezoidal cutting tooth 5 is a slope surface (consisting of the surface CKJG); the sector-shaped cutting tooth 2 is provided with a drill ring groove 7. The drill groove is 2mm deep and 2.5mm wide. Th...

Embodiment 2

[0037] A diamond drill bit for engineering investigation, comprising a steel body 1 of the drill bit and fan-shaped cutting teeth 2 arranged at the front end of the steel body 1 of the drill bit, and nozzles 3 are arranged between two adjacent fan-shaped cutting teeth 2, and the number of nozzles is seven. Each nozzle is 5mm wide, and the inner and outer water tanks 9 are each 1.5mm deep;

[0038] Such as image 3As shown, the fan-shaped cutter 2 is composed of a fan-shaped cylindrical cutter 4 and a fan-shaped trapezoidal cutter 5, image 3 The fan-shaped cylindrical cutting teeth in 4 ( image 3 The polyhedron ABDCGEFH in the composition), the fan-shaped trapezoidal cutting tooth 5 (polyhedron CDLKJIHG is formed); the front cutting surface 5.1 of the sector-shaped trapezoidal cutting tooth 5 is a slope surface (consisting of the surface CKJG); the sector-shaped cutting tooth 2 is provided with a drill ring groove 7. The drill groove is 2mm deep and 2mm wide. The projected...

Embodiment 3

[0046] A diamond drill bit for engineering investigation, comprising a drill steel body 1 and fan-shaped cutting teeth 2 arranged at the front end of the drill bit steel body 1, nozzles 3 are arranged between two adjacent fan-shaped cutting teeth 2, and the number of nozzles is eight 1, the width of each nozzle is 7mm, and the depth of the inner and outer water tanks is 1.5mm;

[0047] Such as image 3 As shown, the fan-shaped cutter 2 is composed of a fan-shaped cylindrical cutter 4 and a fan-shaped trapezoidal cutter 5, image 3 The fan-shaped cylindrical cutting teeth in 4 ( image 3 The polyhedron ABDCGEFH in the composition), sector trapezoidal cutting tooth 5 (polyhedron CDLKJIHG composition); the front end cutting surface 5.1 of sector trapezoidal cutting tooth 5 is a slope surface (consisting of surface CKJG); sector cutting tooth 2 is provided with two drill bit annular grooves 7. The drill groove is 2mm deep and 2.2mm wide. The projected area ratio of the bottom l...

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Abstract

The invention provides a diamond bit used for engineering investigation. The diamond bit includes a bit steel body and bit fan-shaped cutting teeth arranged at the front end of the bit steel body. A water port is arranged between every two adjacent fan-shaped cutting teeth, the fan-shaped cutting teeth are composed of fan-shaped cylindrical cutting teeth and fan-shaped trapezoidal cutting teeth, the cutting surfaces of the front ends of the fan-shaped trapezoidal cutting teeth are slope surfaces, and bit circular grooves are formed in the fan-shaped cutting teeth. The diamond bit has a scientific and reasonable structure, has wide adaptability to the stratum and is excellent in drilling effect. At the same time, the invention further provides a preparation method of the diamond bit, whichcombines a hot-pressing method with a cold-pressing method and exerts the dual advantages of the hot-pressing method and the cold-pressing method, the stable performance of the bit is ensured and theadaptability of the bit to the stratum is improved.

Description

technical field [0001] The invention relates to the technical field of geological engineering, in particular to a diamond drill bit for engineering survey and a preparation method thereof. Background technique [0002] At present, the market share of diamond drill bits used in engineering surveys in my country accounts for about 30% of the entire drill bit field. The characteristic of engineering investigation is that the borehole is shallow, generally no more than 150m, but the formation and lithology at this depth vary greatly. In order to adapt to the frequent movement of the drilling rig, small and portable drilling rigs are mostly used, which have small pressurization capacity and small turning torque. However, the existing ordinary diamond drill bit shows low drilling time efficiency, unsatisfactory drilling effect, and the service life of the drill bit is not long. [0003] Existing manufacturing of diamond drill bits often adopts hot pressing method or electroplati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/54
CPCE21B10/54
Inventor 叶宏煜杨凯华
Owner WUHAN WAN BANG LASER DIAMOND TOOLS
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