SCISSORS GEAR OIL SUPPLY STRUCTURE

• Main Authors: MIZUKAMI NAOKI, HIROSE KAZUHIRO, ASAKURA TSUTOMU, MORI HIROAKI
• Format: Patent
• Language: English; Japanese
• Published: 25.05.2017
• 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

PROBLEM TO BE SOLVED: To provide a scissors gear oil supply structure which, even when a rotary member is fastened to the end of a shaft, can secure a lubrication path connecting to a scissors gear in the shaft.SOLUTION: A scissors gear oil supply structure comprises a scissors gear 1 provided on the outer periphery of the end of a shaft 3 which extends from the inside of an engine body 2, a first oil passage 12 formed extending forward on the central axis C of the shaft 3, a second oil passage 13 extending radially from the first oil passage 12, an extension hole part 18 opened in the front end face 3a of the shaft 3, a female screw 15 formed in the first oil passage 12 backward of the second oil passage 13, a rotary member 19, and a bolt 14 which is inserted in the extension hole part 18 and the first oil passage 12 and is screwed to the female screw 15 to fasten the rotary member 19 to the shaft 3. Lubrication oil is guided from the first oil passage 12 to the second oil passage 13 along a gap 20 between the screw groove 15a of the female screw 15 and the tread 14a of the bolt 14.SELECTED DRAWING: Figure 1 【課題】シャフトの先端に回転部材を締結した場合であってもシャフト内にシザースギアに繋がる潤滑経路を確保できるシザースギア給油構造を提供する。【解決手段】エンジン本体２内から延出するシャフト３の先端部外周に設けられたシザースギア１と、シャフト３の中心軸Ｃ上に前方に延びて形成された第１油路１２と、第１油路１２から半径方向に延びる第２油路１３と、シャフト３の前端面３ａで開口する延長孔部１８と、第２油路１３より後方の第１油路１２に形成された雌ネジ１５と、回転部材１９と、シャフト３に回転部材１９を締結すべく延長孔部１８及び第１油路１２に挿入されると共に雌ネジ１５に螺合されるボルト１４とを備え、潤滑油が、雌ネジ１５のネジ溝１５ａとボルト１４のネジ山１４ａの隙間２０に沿って第１油路１２から第２油路１３に導かれるものである。【選択図】図１