PROBLEM TO BE SOLVED: To provide a cycloid speed reducer showing superior acoustic performance and durability life.SOLUTION: This invention relates to a cycloid speed reducer comprising curved plates 26a, 26b rotatably fitted to the outer circumferences of eccentric parts 25a, 25b through a first rolling bearing Rb1; a motion converting mechanism for converting a rotation movement of the curved plates into a rotating motion of an output shaft 28; and a counter weight 29 arranged to be adjacent to an axial outside of the eccentric parts and the motion converting mechanism includes an inner pin 31 inserted into an open hole 30a of the curved plate and a second rolling bearing Rb2 fitted to the opposing part against the inner wall surface of open-hole in the inner pin, there are provided first and second oil supply passages F1, F2 for supplying lubricant oil flowing at an oil passage 25c extending in an input shaft 25 in an axial direction to each of the first and second rolling bearings. The second oil supply passage F2 is constituted by an oil passage 29c opened at both end surfaces of the counterweight and an oil passage 25d1 extending within the input shaft in a radial direction to cause the oil passage to be communicated with an oil passage of the counterweight 29.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】第1転がり軸受Rb1を介して、偏心部25a,25bの外周に回転自在に嵌合された曲線板26a,26bと、曲線板の自転運動を出力軸28の回転運動に変換する運動変換機構と、偏心部の軸方向外側に隣接配置されたカウンタウェイト29とを備え、運動変換機構が曲線板の貫通孔30aに挿入された内ピン31と内ピンのうち貫通孔の内壁面との対向部に嵌合された第2転がり軸受Rb2とを含むサイクロイド減速機において、入力軸25の内部を軸方向に延びた油路25cを流通する潤滑油を、第1及び第2転がり軸受のそれぞれに供給する第1及び第2の給油路F1,F2を有し、第2の給油路F2をカウンタウェイトの両端面に開口した油路29cと入力軸の内部を径方向に延び、油路とカウンタウェイト29の油路とを連通させる油路25d1とを含んで構成した。【選択図】図2
CYCLOID SPEED REDUCER AND IN-WHEEL MOTOR DRIVE WITH CYCLOID 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
2016-06-23
Patent
Elektronische Ressource
Japanisch
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