FIELD: mining, drilling.
SUBSTANCE: said invention relates to drilling equipment, in particular, to rock drilling bits designed for drilling in oil, gas, exploration, ore mining and other fields. The bit consists of the following individual parts: a bit body, a connector, and an assembly, which incorporates a pin-supported roller and bearings, a split-flange type locking device to secure the roller on the pin (the flange is secured with screws and located outside the pin operating area), and a seal. The pin base diameter d is 0.2 of the bit diameter D.
EFFECT: rock drilling bit with better performance characteristics.
2 dwg
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