PROBLEM TO BE SOLVED: To provide a prime mover part structure of a work vehicle, which has high suction performance of a radiator fan and high exhaust performance of a dust discharge fan with less frequently of maintenance/inspection work.SOLUTION: The prime mover part structure of a work vehicle includes: a radiator fan 20 for outer air suction and a dust discharge fan 30 for exhaust, which are disposed between an engine E and a radiator 50 and can be switched between a drive state and a stop state; an intermediate transmission part 150 to which drive force of the engine E is transmitted; and a fan transmission part 160 to which the drive force is transmitted from the intermediate transmission part 150 and which drives the radiator fan 20 and the dust discharge fan 30. The intermediate transmission part 150 is located outside of a rotation locus of the radiator fan 20 when viewed in the radiator fan 20 rotation axis direction, and rotation power of the engine E is transmitted to the intermediate transmission part 150 from a portion on an opposite side to the radiator 50 with respect to the engine E in a crank shaft 60 of the engine E.
【課題】ラジエータファンの吸入能力と排塵ファンの排気能力が高く、保守・点検作業の頻度が少ない作業車両の原動部構造を提供する。【解決手段】エンジン(E)とラジエータ(50)の間に配置され、駆動状態と停止状態に切換可能な外気吸入用のラジエータファン(20)及び排気用の排塵ファン(30)と、エンジン(E)の駆動力が伝達される中間伝動部(150)と、中間伝動部(150)から駆動力が伝達され、ラジエータファン(20)及び排塵ファン(30)を駆動するファン伝動部(160)とを備え、ラジエータファン(20)の回転軸心方向視で、中間伝動部(150)が、ラジエータファン(20)の回転軌跡の外側に配置され、エンジン(E)のクランクシャフト(60)における、エンジン(E)に対してラジエータ(50)とは反対側の部位から、エンジン(E)の回転動力が前記中間伝動部(150)に伝動されることにより解決される。【選択図】図20
PRIME MOVER PART STRUCTURE OF WORK VEHICLE
作業車両の原動部構造
2015-11-24
Patent
Electronic Resource
Japanese