LUBRICATION DEVICE FOR ROTARY DRIVING MACHINE

• Main Authors: ONO YUTA, NEZU HIDEYUKI, SUZUKI RYOSUKE, MAEBAYASHI HIDETAKA, SHIRASAKI AKIRA, FURUKAWA KENTARO, HYODO YOSHINORI
• Format: Patent
• Language: English; Japanese
• Published: 13.09.2021
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

To provide a lubrication device for a rotary driving machine capable of efficiently lubricating the part to be lubricated, without installing a separate lubrication oil pump in a two-stage transmission for electrically driven vehicles.SOLUTION: Inside of a cover part 10, a lubrication oil storage chamber 62 is formed in a gap with an opposed face of a partition member 60, such that a lubrication oil which is dripped after lubrication of a gear engagement part is received in the lubrication oil storage change 62 and stored therein. The lubrication oil stored in the lubrication oil storage chamber 62 is supplied from the bottom thereof to a center oil hole 72. The center oil hole 72 is communicated to an inner peripheral edge of an oil supply hole 70 which is formed in a rotary part of a transmission in a radial direction. An outer peripheral edge of the oil supply hole 70 is communicated to a pinion pin hole 21-1 of a planetary gear mechanism 30. A lubrication oil flow from the lubrication oil storage chamber 62 to the pinion pin hole 21-1 can be generated by a centrifugal force acting on the lubrication oil in the oil supply hole 70.SELECTED DRAWING: Figure 2 【課題】 本発明は回転駆動機の潤滑装置に関し、電動駆動車用２段変速機において別設の潤滑油ポンプを設置することなく、要潤滑部の効率的な潤滑を行うことができるものである。【解決手段】 カバー10内部において、隔壁部材60の対向面との間に潤滑油貯留室62を形成し、ギヤ噛合部を潤滑後に落下してくる潤滑油を潤滑油貯留室62により受け止め、ここに溜めるようにする。潤滑油貯留室62に溜められた潤滑油はその底部より、中心油孔72に供給される。中心油孔72は、径方向において変速機の回転部に形成される給油孔70の内周端部に連通される。給油孔70の外周端部は、遊星歯車機構30のピニオンピン孔21-1に連通している。給油孔70において潤滑油にかかる遠心力はにより、潤滑油貯留室62からピニオンピン孔21-1に向けての潤滑油流を生成することができる。【選択図】 図２