Citation

Crolla DA. J. Agric. Eng. Res. 1977; 22(2): 197-208.

Copyright

(Copyright © 1977, Elsevier Publishing)

DOI

10.1016/0021-8634(77)90063-4

PMID

unavailable

Abstract

Excessive torques are often imposed on p.t.o. drivelines when starting up high inertia agricultural machines. This is particularly true where the factor is fitted with a fast response, hydraulically engaged p.t.o. clutch and the problem has caused growing concern as machine sizes and power levels have increased. A theoretical analysis of a simplified tractor and machine driveline shows that overload protection can be obtained by suitable modulation of the torque rise of the tractor p.t.o. clutch or by fitting a simple slip clutch in the driveline. Various modulation characteristics are examined using a computer model of the driveline and simple expressions are derived to predict slip clutch performance.

Language: en