Planetary gear transmission systems or components – Planetary gearing or element – Coaxial teeth around planet pinion engage axially spaced...
Patent
1991-09-09
1993-12-14
Braun, Leslie A.
Planetary gear transmission systems or components
Planetary gearing or element
Coaxial teeth around planet pinion engage axially spaced...
475182, 475330, F16H 374
Patent
active
052697347
ABSTRACT:
A gear reducing device which includes a housing, an input drive system characterized by an input shaft having one end projecting from one end of the housing and the opposite end rotatably terminating in one end of an output shaft, a spur and pinion gear mounted on the input shaft, a pair of input spur gears seated in oppositely-disposed relationship on the spur and pinion gear and carrying corresponding auxiliary spur gears, a disc rotatably mounted on the output shaft and receiving the input spur gears and auxiliary spur gears, and an output shaft spur gear keyed to the output shaft and rotatably engaging each of the auxiliary spur gears. The input spur gears and auxiliary spur gears are rotatably seated in pairs on separate spur gear shafts which are press-fitted in spaced relationship along a first diameter of the disc. An output drive system is located in the housing on the opposite side of the disc from the input drive system and includes an output spur gear keyed to the output shaft and engaging a pair of double spur gears rotatably secured to the disc along a second diameter which is ninety degrees disposed from the first diameter. The double spur gears also engage a fixed gear which is bolted to the housing. Driving of the disc and the output shaft by operation of the input and output drive systems creates a high torque, low speed mechanical advantage at the output shaft.
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Braun Leslie A.
Harrison John M.
Trousdell William O.
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