PROBLEM TO BE SOLVED: To provide a twin-motor vehicle driving device having a structure in which radial sizes of speed reducers 2L, 2R are small, the number of oil seals 39 for lubricant oil filled in the speed reducers 2L, 2R is made minimum and the oil seals 39 are contacted with only the shaft rotated in the minimum speed rotation.SOLUTION: A motor shaft 12a for electric motors 1L, 1R has a hollow structure axially passing through the electric motors. An input gear 23 is integrally arranged at an end part of the motor shaft 12a of the speed reducers 2L, 2R. An output shaft 25 is coaxially arranged within the hollow motor shaft 12a. An output gear 25a is integrally arranged at the end part of the output shaft 25 of the speed reducers 2L, 2R. One or more intermediate shafts 24 are rotatably arranged in parallel with the motor shaft 12a and the output shaft 25. Rotation of the motor shaft 12a is reduced under engagement among a plurality of gears integrally arranged at the intermediate shafts 24, the input gear 23 of the motor shaft 12a and the output gear 25a of the output shaft 25 and then transmitted to the output shaft 25.SELECTED DRAWING: Figure 1
【課題】 減速機2L、2Rの半径方向の大きさが小さく、減速機2L、2R内に充填される潤滑油のオイルシール39の個数を最小限にし、オイルシール39が最も低速回転する軸のみと接触する構造の2モータ車両駆動装置を提供する。【解決手段】 電動モータ1L、1Rのモータ軸12aは軸方向に貫通する中空構造であり、モータ軸12aの減速機2L、2R側端部には入力歯車23が一体的に設けられ、出力軸25は、前記中空のモータ軸12aの内部に同軸上に設けられ、前記出力軸25の減速機2L、2R側端部には出力歯車25aが一体的に設けられ、減速機2L、2Rには1つ以上の中間軸24が、モータ軸12aと出力軸25に平行に回転自在に設けられ、中間軸24に一体的に設けられる複数の歯車とモータ軸12aの入力歯車23ならびに出力軸25の出力歯車25aとの噛み合いによりモータ軸12aの回転が減速されて出力軸25に伝達されるようにした。【選択図】図1
TWIN-MOTOR VEHICLE DRIVING DEVICE
2モータ車両駆動装置
2016-08-22
Patent
Elektronische Ressource
Japanisch
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