REDUKTIONSVEXELENHET FOR EN BERGBORRMASKIN

A reduction unit of a drilling motor comprises a casing (1), input and output shafts (6, 8) with spherical bearings (11), and a 2-stage epicyclic reduction gear (4) in an oil-filled chamber (A) delimited by seals (7, 9) protected against contact with the drilling fluid, by buffer fluid in divided sp...

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Bibliographische Detailangaben
Hauptverfasser:	3)E N KRUTIK, 4)G F CHUDAKOV, 7)J S VASILIEV, 9)E I IVANOV, 5)N P STROITELEV, 8)V N ANDOSKIN, 6)A P NATAROV, 1)J V VADETSKY, 2)N D DERKACH
Format:	Patent
Sprache:	swe
Schlagworte:	BLASTING COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MACHINE TOOLS MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A reduction unit of a drilling motor comprises a casing (1), input and output shafts (6, 8) with spherical bearings (11), and a 2-stage epicyclic reduction gear (4) in an oil-filled chamber (A) delimited by seals (7, 9) protected against contact with the drilling fluid, by buffer fluid in divided spaces (B, C). The first stage of the reduction gear has friction elements (28, 32, 30) to eliminate torque fluctuations and the second state has toothed elements (29, 33, 31) of which planets (33) are mounted in sleeves with convex external surfaces eliminating overloading of the gear.