192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1979-04-09
1981-08-04
Krizmanich, George H.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
B60K 6700
Patent
active
042817463
ABSTRACT:
An inching device for a grinding mill which allows selective rotation of the mill at reduced speed for mill alignment, maintenance and the like. The device is comprised of a hydraulic motor having an output drive shaft and a disc type brake assembly operably associated with the output shaft. The entire inching device is mountable to the end of a shaft included in the mill drive train. Preferably, this mounting is at an overhanging end area of a high speed shaft included in a drive train speed reducer and is effected by a coupler structure which accommodates selective inching device installation and removal. This coupler structure also comprises the sole support for the inching device. Torque arms fixedly secured to the hydraulic motor and brake assembly extend radially outward of the output shaft generally parallel and coextensive with each other to be affixed by a common retaining member to some rigid structure adjacent the mill. The disc type brake assembly includes a pair of oppositely disposed caliper assemblies which may be selectively spring biased to a braking condition and selectively hydraulically moved to a non-braking condition. Operation of the brake assembly is arranged so that it is only movable from the braking to the non-braking condition when hydraulic fluid charge pressure is simultaneously supplied to the hydraulic motor. Moreover, the brake assembly will be automatically moved to a braking condition upon loss of hydraulic fluid charge pressure in the system.
REFERENCES:
patent: 2905289 (1959-09-01), Lee et al.
patent: 3257104 (1966-06-01), Marland
patent: 3757912 (1973-09-01), Ball et al.
patent: 3892300 (1975-07-01), Hapeman et al.
Krizmanich George H.
Pickands Mather & Co.
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