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1. (WO2018162683) SLIP COUPLING FOR A WORK MACHINE

Pub. No.:    WO/2018/162683    International Application No.:    PCT/EP2018/055837
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Fri Mar 09 00:59:59 CET 2018
IPC: F16D 7/02
F16D 7/04
Applicants: CNH INDUSTRIAL BELGIUM NV
CNH INDUSTRIAL AMERICA LLC
CNH (CHINA) MANAGEMENT CO., LTD
Inventors: REUBENS, Sam
VANDENDRIESSCHE, Jean-Pierre
Title: SLIP COUPLING FOR A WORK MACHINE
Abstract:
A slip coupling (100) for a work machine includes a main clutch in the form of a friction-based and spring-operated slip clutch (11), and in addition to that, an auxiliary clutch (27) configured to maintain a pre-set spring-induced clamping force on the friction plates (15,16) of the slip clutch, when the slip coupling rotates in a forward direction, and further configured to be able to increase the spring-induced clamping force, when the slip coupling rotates in the reverse rotational direction. The increase of the clamping force is enabled by the fact that one of the two auxiliary clutch parts is axially movable when the slip coupling rotates in the reverse rotational direction, the axial movement actuating an increase in the pre-tension of the mechanical spring or springs (25) of the slip clutch. A work machine such as a combine harvester equipped with a slip coupling is equally included in the disclosure.