COOLING MECHANISM FOR ELECTROMAGNETIC POWDER CLUTCH

摘要

PROBLEM TO BE SOLVED: To extremely simplify and facilitate work such as the maintenance and repair, inspection and replacement of an electromagnetic powder clutch by only inserting the electromagnetic powder clutch to a main drive shaft so as to form a cooling passage with ease and simplify the detachment/attachment of the electromagnetic powder clutch. ;SOLUTION: A void 504 between the inner circumferential surface of the center hole of a main drive shaft 5 and the peripheral surface of a pump drive shaft 6 fitted to the center hole, is made to serve as a cooling oil supply passage, and the center hole of the pump drive shaft 6 is made to serve as a cooling oil return passage 602 so that cooling oil can be supplied from the void 504 to the supply passage 305 and annular cooling passage 304 of a driven member 3, and returned to a transmission from a discharge passage 306 through the return passage 602. Hereby, cooling oil can be circulated when the driven member 3 is rotated so that a clutch can be easily detached/attached from the transmission.;COPYRIGHT: (C)1997,JPO