192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1992-03-05
1993-09-07
Lorence, Richard M.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
192 0094, 192 0098, 192 18B, 192 7019, 192 7028, 192 90, 74625, 74661, 188 723, 188156, 188171, F16H 3706, F16D 6706
Patent
active
052420396
ABSTRACT:
A two-speed drive utilizing an electromagnetically operated control system wired with respective drive motors, automatically braked in the event of a loss of power, provided with pre-assembled clutch and brake disc stacks, and provided with a manual over-ride. A primary drive motor is connected at one end to an external drive shaft and at an opposite end to a primary clutch drive shaft. The primary clutch drive shaft is connected with a first set of discs of an oil shear clutch disk stack. A secondary clutch drive shaft is connected with a second set of discs of the clutch disk stack. The clutch disc stack is biased by springs to be in a normally clamped mode which is released by a clutch electromagnetic coil assembly. The secondary clutch drive shaft is connected by a gear reducer to a shaft which is connected at one end to a secondary drive motor, and at the other end to a first set of discs of an oil shear brake disk stack. A second set of discs of the brake disk stack is connected to a housing component. The brake disc stack is biased by springs to be in a normally clamped mode, which is released by operation of a brake electromagnetic coil assembly. The clutch and brake disc stacks are pre-assembled and held in a pre-aligned orientation by a plurality of alignment pins and wave washers carried on the alignment pins. A manual over-ride is provided which permits selective release of spring biasing with respect to the brake disc stack so that a manual crank may be operated.
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Easom Engineering and Manufacturing Corporation
Keefe Peter D.
Lorence Richard M.
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