To provide a gear change transmission device with a narrow vertical width or breadth and a short longitudinal length of a tractor.SOLUTION: A gear change output part 23 is located rearward of a complex planetary transmission part 22 on the rear side of a vehicle body. The planetary part output shaft core 22Y and the transmission part input shaft core 23X are the same shaft core. A power transmission part 24 from an engine 6 to a continuously variable transmission part 21 and the complex planetary transmission part 22 is interlocked with the output shaft 6a of the engine 6 and. a rotary transmission shaft 80 extending in a direction along the longitudinal direction of the vehicle body, a pump transmission part 85 for inputting the power of the rotation transmission shaft 80 to the continuously variable transmission part 21, and a planetary transmission part 81 for inputting the power of the rotation transmission shaft 80 to the complex planetary transmission part 22 are provided. The rotary transmission shaft 80 is on the vehicle body rear side of the engine 6, and is parallel to the motor shaft 50a and the pump shaft 51a. In the longitudinal direction of the vehicle body, the continuously variable transmission part 21 and both of the compound planetary transmission part 22 and the transmission output part 23 are at the same position.SELECTED DRAWING: Figure 2
【課題】上下幅又は横幅が狭く、前後長さが短いトラクタの変速伝動装置を提供する。【解決手段】変速出力部23が複合遊星伝動部22よりも車体後方側に在る。遊星部出力軸芯22Yと変速部入力軸芯23Xとが同一軸芯である。エンジン6から無段変速部21及び複合遊星伝動部22への動力伝達部24に、エンジン6の出力軸6aに連動連結されると共に車体前後方向に沿う方向に延びる回転伝動軸80、回転伝動軸80の動力を無段変速部21に入力するポンプ伝達部85、回転伝動軸80の動力を複合遊星伝動部22に入力する遊星伝達部81が備えられている。回転伝動軸80は、エンジン6よりも車体後方側に在り、かつモータ軸50a及びポンプ軸51aに対して平行である。車体前後方向において、無段変速部21と、複合遊星伝動部22及び変速出力部23の両方とが同じ箇所に在る。【選択図】図2
TRACTOR GEAR CHANGE TRANSMISSION DEVICE AND TRACTOR
トラクタの変速伝動装置及びトラクタ
20.06.2019
Patent
Elektronische Ressource
Japanisch
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