DRAWWORKS Russian patent published in 1994 - IPC

Abstract RU 2023645 C1

FIELD: drilling rigs. SUBSTANCE: drawworks have frame 1, drum 2, shaft 3 on bearings 4, 5 which is passed through drum 2. Clutches 6,7 connect shaft 3 with main engines 8, 9. Planetary reduction unit 10 is installed on shaft 3. Sun gear 14 of reduction unit is arranged between disks 12 and 13. Disk 12 is connected with hub 16 of drum 2. Gear wheel 24 is connected through clutch-gear 25 with auxiliary drive 26. EFFECT: enlarged operating capabilities. 3 dwg

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RU 2 023 645 C1

Authors

Gramolin V.N.

Klevanskij F.V.

Peretrukhin V.V.

Grin M.Ja.

Bobrov V.N.

Dates

1994-11-30—Published

1991-06-07—Filed