LUBRICATION STRUCTURE OF POWER TRANSMISSION DEVICE

• Main Author: MATSUBARA KENJI
• Format: Patent
• Language: English; Japanese
• Published: 14.01.2021
• 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 secure a discharge amount of lubricant without deteriorating support rigidity of a rotational shaft, in a lubrication structure of a power transmission device that transmits power by a chain.SOLUTION: A lubrication structure of a power transmission device is provided with: a first oil drain hole 52 drilled in a case wall 40 below a second rotational shaft 32; and a second oil drain hole 54 bored in the case wall 40, which is intermediate between a first sprocket 44 and a second sprocket 48 in the flow passage for lubricant flowing down from the periphery of the first sprocket 44.SELECTED DRAWING: Figure 2 【課題】チェーンによって動力を伝達する動力伝達装置の潤滑構造において、回転軸の支持剛性を低下させることなく潤滑油の排出量を確保する。【解決手段】第二回転軸３２より下方のケース壁４０に穿設された第一排油孔５２と、第一スプロケット４４周辺から流下する潤滑油の流路において第一スプロケット４４と第二スプロケット４８との中間となるケース壁４０に穿設された第二排油孔５４とを設けた。【選択図】図２