Motor assembly for drawworks systems and methods
AssigneeCameron International Corporation
InventorsPeter William Cave, Jonathan David Deagle, Michael Netecke, Rogelio Cabrera
Life of this patent
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Abstract
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.
Claims20
A system, comprising:
- a first transmission, comprising:
- a first planetary gearset;
- a first drive shaft;
- a first annular sleeve positioned circumferentially about the first drive shaft, wherein 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;
- and
- a motor assembly comprising the first transmission and a first motor, wherein the first transmission is configured to adjust a first power output of the first motor, and the motor assembly is configured to drive rotation of a drum of a drawworks system of a mineral extraction system.
A system, comprising:
- a motor assembly configured to drive rotation of a drum of a drawworks system of a mineral extraction system, comprising:
- a first motor housing supporting a first motor;
- a first transmission housing supporting a first transmission configured to adjust a first power output of the first motor, wherein the first transmission comprises a first drive shaft and a first annular sleeve positioned circumferentially about the first drive shaft, and the first annular sleeve is configured to move axially relative to the first drive shaft to change a first gear ratio of the first transmission;
- and
- a second motor and a second transmission configured to adjust a second power output of the second motor.
A method of operating a motor assembly of a drawworks system of a mineral extraction system, comprising:
- operating a first motor coupled to a first transmission to adjust a first power output of the first motor while a first annular sleeve positioned about a radially-outer surface of a first drive shaft of the first transmission is in a first axial position relative to the first drive shaft, wherein the first transmission provides a first gear ratio while the first annular sleeve is in the first axial position;
- adjusting the first annular sleeve from the first axial position to a second axial position relative to the drive shaft of the transmission to provide a second gear ratio;
- and
- operating a second motor coupled to a second transmission to adjust a second power output of the second motor.
Dependencies are inferred from the claim text.