To improve insufficient lubrication of a bearing due to reduction of a scraping amount of a lubricant at a low speed, while reducing an amount of the lubricant stored in a case of an oil transmission device.SOLUTION: In a lubrication structure of a power transmission device, a lubricant stored at a lower portion of a housing space Z1 for housing a first gear 21 and a second gear 22 is scraped and supplied to a first gear 21 side, and an oil receiving portion 92 extending from axial one side to the axial other side of the first gear 21 and receiving the scattered lubricant by an upper surface, and an oil path 90 including a branch guide portion 93 disposed at the axial other side from a downstream end of the oil receiving portion 92 for branching and guiding the lubricant to a first bearing 81 supporting the first gear 21 and a second bearing 83 supporting the second gear 22, are provided. The oil receiving portion 92 is composed of an inclined surface of which a central portion in a width direction is positioned below both end portions in a width direction, and the central portion and a branch point 93c of the branch guide portion 93 are disposed to be aligned at the downstream end.SELECTED DRAWING: Figure 4
【課題】オイル伝達装置のケース内に貯留される潤滑油の量の低減を図りつつ、低速時の潤滑油の掻き上げ量の減少に伴う軸受の潤滑不足を改善する。【解決手段】動力伝達装置の潤滑構造は、第1ギヤ21と第2ギヤ22を収容する収容空間Z1の下部に貯留された潤滑油が掻き上げられて、第1ギヤ21側に供給され、第1ギヤ21の軸方向一方側から軸方向他方側に向けて延びるとともに飛散した潤滑油を上面に受けるオイル受け部92と、オイル受け部92の下流端から、軸方向他方側に設けられて第1ギヤ21を支持する第1軸受81及び第2ギヤ22を支持する第2軸受83に潤滑油を分岐させて案内する分岐案内部93を備えたオイルパス90を有し、オイル受け部92は、幅方向の中央部が幅方向の両端部よりも下方に位置する傾斜面によって形成され、下流端において、前記中央部と分岐案内部93の分岐点93cとが一致するように設定される。【選択図】図4
LUBRICATION STRUCTURE OF POWER TRANSMISSION DEVICE
動力伝達装置の潤滑構造
13.04.2022
Patent
Elektronische Ressource
Japanisch