PROBLEM TO BE SOLVED: To improve the transmission efficiency of a cooling fan by simplifying the transmission structure to improve the cooling efficiency of an engine when installing an HST performing normal and reverse rotation driving of the cooling fan, and improve maintainability of the engine and the HST.SOLUTION: A combine-harvester comprises: an engine (E) which is arranged in an engine room (6); a radiator (50) which cools cooling water for the engine (E); a cooling fan (11) which is arranged between the engine (E) and the radiator (50); an input shaft (15) to which a driving force of the engine (E) is transmitted; a discharging transmission part (170) through which the driving force from the input shaft (15) is transmitted to a discharger (130); and a fan transmission part (160) through which the driving force from the input shaft (15) is transmitted to the cooling fan (11). The fan transmission part (160) comprises a stepless speed variator (18) which steplessly changes a speed of the driving force of the engine (E) inputted from the input shaft (15) and outputs the changed driving force to the cooling fan (11).SELECTED DRAWING: Figure 3
【課題】冷却ファンを正逆転駆動するHSTの設置にあたり、伝動構造を簡素化することで、冷却ファンの伝動効率を高めてエンジンの冷却効率を向上させると共に、エンジンやHSTのメンテナンス性向上を図る。【解決手段】エンジンルーム(6)内に配置されるエンジン(E)と、エンジン(E)の冷却水を冷却するラジエータ(50)と、エンジン(E)とラジエータ(50)の間に配置される冷却ファン(11)と、エンジン(E)の駆動力が伝達される入力軸(15)と、入力軸(15)からの駆動力を排出装置(130)へ伝達する排出伝動部(170)と、入力軸(15)からの駆動力を冷却ファン(11)へ伝達するファン伝動部(160)とを備え、ファン伝動部(160)には、入力軸(15)から入力されたエンジン(E)の駆動力を無段階に変速して冷却ファン(11)側へ出力する無段変速装置(18)を有することにより解決される。【選択図】図3
COMBINE-HARVESTER
コンバイン
2016-03-10
Patent
Electronic Resource
Japanese
IPC: | A01D Ernten , HARVESTING / A01F THRESHING , Dreschen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F01P Kühlung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein , COOLING OF MACHINES OR ENGINES IN GENERAL |