Fluid actuated clutch having fluid slip fitting safety interlock

Details Fluid actuated clutch having fluid slip fitting safety interlock Fluid actuated clutch having fluid slip fitting safety interlock

1988-02-19

1989-06-13

Hirsch, Paul J.

Harvesters

Motorized harvester

With selective control of drive means

56 115, A01D 6908

Patent

active

048380113

ABSTRACT:
A main drive for crop cutting, conveying and/or processing components of a self-propelled harvester includes an input shaft which extends crosswise to and is coupled for being driven by a longitudinally extending engine output shaft. The input shaft carries a spring-released, hydraulically-engageable disc clutch, which, when engaged, transfers power from the clutch to a multi-grooved belt drive sheave which is coupled to respective driven sheaves of the crop cutting, conveying and/or processing components by a drive belt. The clutch is mounted on the shaft outboard of the drive sheave and the shaft is provided with a fluid passage that extends inwardly from its outboard end and is coupled in fluid communication with the clutch piston. A slip fitting is releasably coupled to the outboard end of the shaft and is adapted for being coupled to a conduit for conveying fluid to or returning fluid from the clutch piston. The shaft includes splined outboard section located between the fitting and the clutch which is adapted for receiving a dynamometer drive element, once the slip fitting is removed, so that the engine output may be checked without any danger of inadvertent clutch engagement.

REFERENCES:
patent: 2535812 (1950-12-01), Phillips
patent: 3599407 (1971-08-01), Bichel
patent: 3701239 (1972-10-01), Hennen
patent: 4122652 (1978-10-01), Holtermann
patent: 4408685 (1983-10-01), Schilling et al.
patent: 4455812 (1984-06-01), James
patent: 4483430 (1984-11-01), Carmichael et al.
patent: 4663919 (1987-05-01), Stroh et al.

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