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US 10,208,817 B2Granted
Drawworks gearbox with redundant braking on input side
AssigneeCameron International Corporation
InventorsMichael R. Netecke, Rogelio Cabrera
Life of this patent
Estimating the term…
Abstract
A drawworks gearbox includes additional braking on the input side of the gearbox to provide a redundant emergency brake and, optionally, a separate parking brake with the drum-side brakes being the emergency brake. An air-cooled brake disc is attached to a high speed coupling connected to the gearbox input pinion. A hydraulic-apply, spring-release brake is mounted to the gearbox housing at each pinion location and arranged to act on its respective disc.
Claims6
A drawworks brake system comprising:
- at least one set of emergency and parking brakes located on each side of a drawworks drum,
- the at least one set of emergency and parking brakes including a brake disc acted upon by a drum brake;
- at least one set of redundant brakes located on an input side of a drawworks gearbox, the at least one set of redundant brakes including:
- an air-cooled disc attached to a high speed coupling connected to an input pinion of the drawworks gearbox;
- a brake mounted to a housing of the drawworks gearbox and arranged to engage the air-cooled disc.
2 more elements
Dependencies are inferred from the claim text.