PROBLEM TO BE SOLVED: To provide a cycloidal speed reducer excellent in acoustic performance, durability, and the like.SOLUTION: A cycloidal speed reducer comprises: an input shaft 25 including eccentric portions 25a and 25b; and rolling bearings 37 rotatably supporting the input shaft 25 relatively to an output shaft 28, the input shaft 25 including therein a lubricant passage 25c extending axially within the input shaft 25; and a first oil supply hole Pextending radially and supplying lubricant flowing in the lubricant passage 25c to rolling bearings 41 supporting curved plates 26a and 26b, the cycloidal speed reducer being configured so that the rolling bearings 37 are fitted into the input shaft 25 with clearances, and the input shaft 25 further includes a second oil supply hole Pextending radially, and having an inside-diameter end portion opening in the lubricant passage 25c and an outer-diameter end portion opening in fitting portions M1 and M2 for the respective rolling bearings 37.SELECTED DRAWING: Figure 2
【課題】音響性能および耐久寿命等に優れたサイクロイド減速機を提供する。【解決手段】偏心部25a,25bを有する入力軸25と、該入力軸25を出力軸28に対して回転自在に支持する転がり軸受37,37とを備え、入力軸25に、その内部を軸方向に延びる潤滑油路25cと、径方向に延び、潤滑油路25c内を流通する潤滑油を曲線板26a,26bを支持する転がり軸受41,41に供給する第1給油孔P1とが設けられたサイクロイド減速機であって、転がり軸受37,37が入力軸25に対してすきま嵌めで嵌合され、入力軸25が、径方向に延び、内径端部が潤滑油路25cに開口すると共に外径端部が転がり軸受37,37との嵌合部M1,M2に開口した第2給油孔P2をさらに有する。【選択図】図2
CYCLOIDAL SPEED REDUCER AND IN-WHEEL MOTOR DRIVE DEVICE WITH CYCLOIDAL SPEED REDUCER
サイクロイド減速機およびこれを備えたインホイールモータ駆動装置
2016-03-17
Patent
Elektronische Ressource
Japanisch
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