Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1985-01-02
1987-07-14
Braun, Leslie
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74785, 267 6415, 267124, 188303, F16H 5708
Patent
active
046794646
ABSTRACT:
In the speed reducer disclosed, the gear ring (12) of the planetary gear train is connected via a pair of diametrically-opposed appendages (13) with a corresponding pair of vertically disposed and parallel double-acting hydraulic cylinders (14) suspended via ball-and-socket joints beween the gear unit and a fixed structure. Each cylinder shows a low pressure (31) and a high pressure (32) oil chamber connected to low and high pressure hydraulic accumulators (33, 34) respectively by means of respective throttle valves (35, 36) in parallel with respective ball check valves (37, 38). There are no bearings between the gear case (18, 19)and the shaft instead, the output shaft hub is fitted with an assembly which incorporates thrust rings and a rotary seal (20) featuring diametrial-flow lubrication to ensure freedom from foreign matter.
REFERENCES:
patent: 1923777 (1933-08-01), Delaval-Crow
patent: 2992532 (1961-07-01), Miller
patent: 3383937 (1968-05-01), Toenne et al.
patent: 4091897 (1978-05-01), Andrepont
patent: 4266639 (1981-05-01), Schloth
patent: 4312247 (1982-01-01), Silvestri
Braun Leslie
Rolnicki Joseph M.
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