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Comb-like fan-shaped block diamond-impregnated bit

A technology for impregnating diamonds and fan-shaped blocks is applied in the field of comb-shaped fan-shaped block-impregnated diamond drill bits to achieve the effects of increasing the ROP, reducing the hole inclination, and avoiding abnormal wear.

Active Publication Date: 2014-04-23
中地装(无锡)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

To solve the above-mentioned problems existing in the existing diamond drill bit

Method used

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  • Comb-like fan-shaped block diamond-impregnated bit
  • Comb-like fan-shaped block diamond-impregnated bit
  • Comb-like fan-shaped block diamond-impregnated bit

Examples

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Embodiment Construction

[0021] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0022] Please refer to Figure 1 to Figure 6 As shown, in this embodiment, a comb-shaped fan-shaped block-impregnated diamond drill bit includes a drill bit matrix 1, and the drill bit matrix 1 is provided with concentric annular grooves composed of several and fan-shaped blocks, and the drill bit matrix There are several nozzles 2 on the 1, saw-toothed cutting teeth are provided on the sector block, and the sector block includes a first sector block 3 and a second sector block 4, and the first sector block 3 and the second sector block The sector blocks 4 are alternately arranged in turn, and the cutting teeth of the first sector block 3 and the second sector block 4 have the same tooth width and both include a cutting tooth convex portion 5 and a cutting tooth concave portion 6. The first sector ...

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Abstract

The invention discloses a comb-like fan-shaped block diamond-impregnated bit. The comb-like fan-shaped block diamond-impregnated bit comprises a bit blank, wherein the bit blank is provided with a concentric ring groove consisting of a plurality of fan-shaped block; the fan-shaped blocks are provided with cutting teeth; each cutting tooth comprises a projecting portion and a depressed portion; the fan-shaped blocks comprise first and second fan-shaped blocks which are arranged alternatively; the depressed portions of the cutting teeth on the first fan-shaped blocks correspond to the projecting portions of the cutting teeth on the second fan-shaped blocks; the projecting portions of the cutting teeth on the first fan-shaped blocks are unequal to the projecting portions of the cutting teeth on the second fan-shaped blocks in heights. When the diamond bit is used for smashing rock, the rock is cut saw tooth forms by using the first fan-shaped blocks, and the projecting portions of the first fan-shaped blocks are cut off by using the second fan-shaped blocks. The cut rock debris is prevented from repeatedly abrading the working layers of the fan-shaped blocks, thereby discharging the rock debris more effectively, and increasing the mechanical drilling speed, bit footage and drilling technical index.

Description

technical field [0001] The invention relates to a diamond drill bit, in particular to a comb-shaped sector block impregnated diamond drill bit. Background technique [0002] At present, in domestic geological exploration construction, diamond drilling technology is widely used. Diamond drill bits are generally used in construction, and concentric ring grooves are mostly used in the lip surface of the carcass. Since the shape of the working lip of each sector of the concentric ring groove diamond drill bit is the same, during the drilling process, the working lip of the next sector will repeatedly break rocks in the groove formed by cutting the previous sector, while the previous sector Part of the cuttings cut by the block stays at the bottom of the groove, which will grind the diamond in the working layer of the next fan-shaped block, which causes useless wear of the diamond. Contents of the invention [0003] The object of the present invention is to solve the above pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/43E21B10/56
Inventor 维克托·费多罗维奇·契霍特金高申友蒋国盛彭莉李晓磊
Owner 中地装(无锡)钻探工具有限公司
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