A system includes a first transmission having a first planetary gearset, a first drive shaft, and a first annular sleeve. The first annular sleeve is positioned circumferentially about the first drive shaft, and the first annular sleeve is configured to move axially relative to the first drive shaft and the first planetary gearset from a first axial position in which the first annular sleeve engages a first sun gear of the first planetary gearset to a second axial position in which the first annular sleeve engages a first ring gear of the first planetary gearset to adjust a gear ratio of the first transmission.
MOTOR ASSEMBLY FOR DRAWWORKS SYSTEMS AND METHODS
2018-09-06
Patent
Electronic Resource
English
IPC: | H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / F16H Getriebe , GEARING / B66D Haspeln , CAPSTANS / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren |