DRILLING BIT BEARING STRUCTURE

FIELD: mining. ^ SUBSTANCE: invention concerns rock destruction tool. Particularly it concerns drilling bit bearing structures. Bit bearing structure contains claw with inclined pin and crusher, installed on pin by means of bearings, one of which is claw. At that link rail of pin and crusher for eac...

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Bibliographische Detailangaben
Hauptverfasser:	PANIN NIKOLAJ MITROFANOVICH, JASASHIN VITALIJ ANATOL'EVICH, SERIKOV DMITRIJ JUR'EVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	FIELD: mining. ^ SUBSTANCE: invention concerns rock destruction tool. Particularly it concerns drilling bit bearing structures. Bit bearing structure contains claw with inclined pin and crusher, installed on pin by means of bearings, one of which is claw. At that link rail of pin and crusher for each frictionless bearing is made of material with different friction ratio, at that friction ratio of couple: crusher - rolling element is more then of couple: pin - rolling element. ^ EFFECT: life time increasing offering structure at the expense of decreasing probability of bearing rolling element jamming. ^ 1 dwg