Drive assembly with overspeed brake

Details Drive assembly with overspeed brake Drive assembly with overspeed brake

1987-03-13

1991-02-19

Diehl, Dwight

Machine element or mechanism

Gearing

With brake means for gearing

74606R, 166 78, 188184, 188185, F04B 4910

Patent

active

049932764

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 embodiments 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.

REFERENCES:
patent: 2080952 (1937-05-01), Rathje
patent: 2171171 (1939-08-01), Brauer
patent: 2174115 (1939-09-01), Auld et al.
patent: 2327962 (1943-08-01), Drake
patent: 3205726 (1965-09-01), Stoeckhicht
patent: 3318550 (1967-05-01), Quenot
patent: 3485109 (1969-12-01), Dunlap
patent: 3543598 (1970-12-01), Lanzenberger
patent: 3779355 (1973-12-01), Okuno
patent: 4216848 (1980-08-01), Shimodaira
patent: 4275609 (1981-06-01), Delaney
patent: 4372379 (1983-02-01), Kulhaneic

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