PRIME MOVER PART COOLING DEVICE OF WORK VEHICLE

摘要

PROBLEM TO BE SOLVED: To compactly configure a normal/reverse rotation mechanism while utilizing a planetary gear mechanism as the normal/reverse rotation mechanism of a fan for a radiator.SOLUTION: A prime mover part cooling device of a work vehicle includes: a sun gear 13 that is rotated integrally with an input shaft 11; a planetary gear 15 that is supported by a carrier 16 rotated integrally with an output shaft 12 and that is meshed with the sun gear 13; a ring gear 14 that is meshed with the planetary gear 15; a brake clutch 19 for normal rotation, which inhibits relative rotation of the ring gear 14 and the carrier 16; and a brake clutch 20 for reverse rotation, which inhibits rotation of the ring gear 14.