A self-sharpening ring tooth impregnated diamond drill bit
A technology of impregnated diamond and ring teeth, which is applied in the direction of drill bits, drilling equipment, earthwork drilling, etc., can solve the problems of low mechanical penetration rate and low service life of diamond drill bits, achieve high mechanical penetration rate, improve wear resistance, The effect of high drill life
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[0015] The present invention will be described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following embodiments.
[0016] The overall structure of the self-sharpening ring tooth impregnated diamond bit provided by the present invention is as follows: figure 1 As shown, it at least includes a cylindrical drill body 1, and the top of the drill body 1 is inlaid with 2-16 arc-shaped cutting blocks 2 along the circumferential direction. According to the different diameters of the drill body 1, the provided cutting blocks The quantity of 2 is also different, and eight cutting blocks 2 are provided in the present embodiment. The height and arc length of the cutting block 2 are the same, the cross section of the cutting block 2 is fan-shaped, and the top surface of the cutting block 2 is the working lip surface.
[0017] There are 3-10 arc-shaped cutting teeth 3 on the working lip surface. In ...
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