A pdc drill bit with cutting elements arranged in pairs
A cutting element, paired technology, used in drill bits, drilling equipment, earth-moving drilling, etc., can solve problems such as rapid wear failure of composite sheets, reduced cutting efficiency and working life of drill bits, and limited impact resistance and thermal wear resistance. , to improve the efficiency of rock breaking, enhance the ability to eat into the formation, and prolong the life.
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[0033] The following non-limiting examples illustrate the invention.
[0034] Such as figure 1 , 2 As shown, a PDC drill bit with cutting elements arranged in pairs, including a drill body 1, a fixed blade 2, a cutting element 4, a water hole or a nozzle 5, etc. are arranged on the fixed blade, and it is characterized in that: there are at least two Cutting elements 31 and 32 are angled and are provided in pairs on 2 cutting element bits.
[0035] Preferably, the deflection angle θ of the paired cutting elements 3 ranges from 5°≤|θ|≤85°, such as figure 1 , 2 , 3 shown.
[0036] Preferably, the paired cutting elements 3 are arranged on the same fixed blade 2, and the deflection angle directions of the paired cutting elements are opposite, that is, one is positive and the other is negative, such as figure 2 shown.
[0037] Preferably, the paired cutting elements are arranged on different fixed blades, such as Image 6 shown. Pairs of cutting elements are angled in the...
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