PROBLEM TO BE SOLVED: To provide a pluriaxial type power transmission device which inhibits burning of a bearing for supporting a rotary shaft of a second electric motor while inhibiting loss even if the second electric motor is positioned at a case upper part.SOLUTION: In a transaxle 1, an output shaft 70 of a second electric motor MG2 is positioned at an uppermost side and a counter shaft 50 is disposed between an input shaft 10 connected with an engine and the output shaft 70. The transaxle 1 includes: a case 2; a planetary gear mechanism 20 disposed at the inner side of the cylindrical output member 30; an oil pump 40 which supplies an oil to the planetary gear mechanism 20; a first ball bearing 72 which supports the output shaft 70 on the case 2; and an oil storage part 7 which stores an oil so that a part of a rolling surface of the first ball bearing 72 is immersed in the oil. Communication holes 6, which penetrate through the output member 30 in a radial direction, are formed at the output member 30. The oil storage part 7, the communication holes 6, and a counter drive gear 52 provided at the counter shaft 50 are formed so as to overlap with each other in an axial direction.SELECTED DRAWING: Figure 1
【課題】複軸式の動力伝達装置において、ケース上部に第2電動機が位置する場合でも、損失を抑えつつ、第2電動機の回転軸を支持する軸受の焼き付きを抑制する。【解決手段】第2電動機MG2の出力軸70が最も上方に位置し、且つ、エンジンに接続される入力軸10と出力軸70との間にカウンタ軸50が配置されるトランスアクスル1である。ケース2と、円筒状の出力部材30の内側に配置される遊星歯車機構20と、遊星歯車機構20へオイルを供給するオイルポンプ40と、出力軸70をケース2に支持する第1ボールベアリング72と、第1ボールベアリング72の転走面の一部が浸漬されるようにオイルを貯留するオイル貯留部7と、を備えている。出力部材30には径方向に貫通する連通孔6が形成されている。オイル貯留部7と連通孔6とカウンタ軸50に設けられたカウンタドライブギヤ52とが軸方向に重なるように形成されている。【選択図】図1
POWER TRANSMISSION DEVICE
動力伝達装置
2017-03-23
Patent
Elektronische Ressource
Japanisch
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