192 clutches and power-stop control – Clutches – Torque responsive
Patent
1985-07-11
1987-05-26
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Torque responsive
192150, F16D 702, F16D 43286
Patent
active
046677909
ABSTRACT:
A gearing unit has a housing containing gearing drivably interconnecting a rotary input to an output shaft used to propel a drive chain of a mineral mining machine. A clutch is provided which is released by hydraulic pressure to disengage the drive automatically should excessive loading occur. A spigot rotatably locked to the shaft provides a fluid passage for hydraulic fluid used to release the clutch and the fluid flow is controlled by an electromagnetic valve. A torsion bar carrying a load sensor is located within the spigot and the sensor provides an electrical signal transferred to control means for operating the valve via a slip-ring system. The torsion bar is rotatably locked to the shaft via a coupling rod disposed within the shaft and a push-in connection. The torsion bar is also rotatably secured to the spigot for easy release therefrom. Access to the bar from outside the housing is facilitated and by releasing at least the connection between the spigot and the bar, the latter can be withdrawn axially while leaving the other components intact.
REFERENCES:
patent: 2973067 (1961-02-01), Eddy, Jr.
patent: 3245285 (1966-04-01), Van Den Kieboom
patent: 3828900 (1974-08-01), Anderson
patent: 4245526 (1981-01-01), Frain et al.
patent: 4601218 (1986-07-01), Bohle
Bonck Rodney H.
Gewerkschaft Eisenhutte Westfalia
Lorence Richard M.
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