PROBLEM TO BE SOLVED: To prevent backlash and reduction of a transmission force due to wear of a roller in a planetary roller reduction gear.SOLUTION: In a planetary roller reduction gear 100, a sun roller 2, an outer roller 4 and a plurality of pieces of planetary rollers 5 are accommodated in a space formed by a casing 11 and a lid 8. The planetary roller reduction gear 100 is provided in which: each of the plurality of pieces of planetary rollers 5 has a rotation axis 6 in which a support member 7 is fixed at one end part, and is arranged around the rotation axis 6 in a rotatable manner; the support member 7 is fixed to the lid 8, and is orthogonal to the rotation axis 6 of the planetary roller 5; and also, the rigidity of a first direction from the rotation axis 6 of the planetary roller 5 toward a central axis of the sun roller 2 is smaller than the rigidity of a second direction orthogonal to the rotation axis 6 of the planetary roller 5 and the first direction.

    【課題】遊星ローラ減速機において、バックラッシの防止及びローラの摩耗による伝達力の減少を防止する。【解決手段】太陽ローラ2、アウターローラ4及び複数個の遊星ローラ5は、ケーシング11と8蓋とで形成された空間に収納された遊星ローラ減速機100において、前記複数個の遊星ローラ5はそれぞれ、一方の端部に支持部材7を固定した回転軸6を有し、前記回転軸6の周りに回転可能に配置され、前記支持部材7は、前記蓋8に固定され、前記遊星ローラ5の中心軸6と直交し、かつ、前記遊星ローラ5の中心軸6から前記太陽ローラ2の中心軸に向かう第1の方向の剛性が、前記遊星ローラ5の中心軸6及び前記第1の方向に直交する第2の方向の剛性よりも小さいことを特徴とする遊星ローラ減速機100を提供する。【選択図】図1


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    Title :

    PLANETARY ROLLER REDUCTION GEAR AND ELEVATOR USING THE SAME


    Additional title:

    遊星ローラ減速機並びにこれを用いたエレベーター


    Contributors:

    Publication date :

    2015-12-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16H Getriebe , GEARING / B66B Aufzüge , ELEVATORS



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