Machine element or mechanism – Gearing – Lubrication
Patent
1987-03-16
1989-01-31
Braun, Leslie A.
Machine element or mechanism
Gearing
Lubrication
74606R, 184 618, F16H 5704
Patent
active
048007714
ABSTRACT:
A drive assembly brake is mounted in the gearbox connecting a motor driven input shaft to an output shaft, the output shaft being connected by a tubing string to a submersed rotary pump. The gearbox includes an output shaft housing portion defining an oil chamber and an input shaft housing portion defining an oil-free centrifugal brake chamber. The relatively faster moving input shaft carries a centrifugal brake having weight members frictionally engageable with the brake chamber wall when the rotational speed of the input shaft reaches a sufficiently high degree, and the resulting braking action retards the rotation of the input shaft.
In one embodiment a split casing gearbox is used having matched passage portions in the faces of the connected gearbox portions to form a lubrication passage system for the shaft bearings.
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Edwards Wallace L.
Thomson Stewart L.
Anchell Scott
Braun Leslie A.
Superior Gear Box Company
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