-
公开(公告)号：US08813904B2
公开(公告)日：2014-08-26
申请号：US13680375
申请日：2012-11-19
申请人： JTEKT Corporation
IPC分类号： B62D5/04 , F16C23/08 , F16H55/24 , F16C27/04 , F16H57/021
CPC分类号： B62D5/0403 , B62D5/0409 , F16C23/08 , F16C27/04 , F16C2326/24 , F16C2361/61 , F16H55/24 , F16H2057/0213
摘要： There is provided an urging mechanism that elastically urges a second end portion of a worm shaft that is supported so as to be pivotable about a first end portion. The urging mechanism is configured to adjust a backlash between the worm shaft and a worm wheel by elastically urging the second end portion in a perpendicular direction that is perpendicular to a direction in which an inter-axis distance between the worm shaft and the worm wheel increases and decreases, in a state where increases and decreases in the inter-axis distance is prevented.
摘要翻译： 提供了一种推动机构，其弹性地推动蜗杆轴的第二端部，该第二端部被支撑为能够绕第一端部枢转。 推动机构构造成通过在与蜗杆轴和蜗轮之间的轴间距离增加的方向垂直的垂直方向上弹性推动第二端部来调节蜗杆轴与蜗轮之间的间隙 并且在防止轴间距离的增减的状态下减小。
-
公开(公告)号：US09630647B2
公开(公告)日：2017-04-25
申请号：US13946289
申请日：2013-07-19
申请人： JTEKT CORPORATION
发明人： Arata Kikuchi , Yoshitomo Nagai
IPC分类号： B62D5/02 , B62D5/04 , F16H57/021 , F16H55/24
CPC分类号： B62D5/0454 , B62D5/0409 , F16H55/24 , F16H2057/0213
摘要： An electric power steering system includes a joint that connects a rotary shaft of an electric motor with a worm shaft of a speed reducer. The joint includes a first rotational element that has a boss into which a first end portion of the worm shaft is press-fitted, and a flange extending radially from the boss. The first bearing is held by a housing and supports the first end portion so that the first end portion is rotatable and movable in an axial direction. A first elastic body, which urges the worm shaft in the axial direction toward the electric motor through the first rotational element, is provided between an inner ring of the first bearing and the flange.
-
公开(公告)号：US10724620B2
公开(公告)日：2020-07-28
申请号：US15646197
申请日：2017-07-11
申请人： JTEKT CORPORATION
发明人： Akihiro Takeuchi , Yu Suematsu , Yuji Wakugawa , Yoshitomo Nagai , Koji Okumura , Hiroshi Kutsumi
摘要： A worm wheel includes: a sleeve; and a toothed portion provided by injection molding so as to cover a part of the sleeve, the toothed portion including a first thick portion provided on a first side face, which is a surface of the sleeve on a side closer to an injection-mold gate in an axial direction, and a second thick portion provided on a second side face, which is a surface on an opposite side to the first side face. A central part, in the axial direction, of the outer peripheral surface of the sleeve projects in the radial direction relative to both ends in the axial direction. The first thick portion of the toothed portion has a smaller thickness in the axial direction than the second thick portion.
-
公开(公告)号：US09499194B2
公开(公告)日：2016-11-22
申请号：US14332999
申请日：2014-07-16
申请人： JTEKT CORPORATION
IPC分类号： B62D5/04
CPC分类号： B62D5/0409 , B62D5/04 , Y10T74/18792
摘要： In a speed reducer of an electric power steering system, a first bearing supports a first end portion of a worm so that the first end portion is movable in an axial direction. Elastic members elastically support the worm in the axial direction. A second bearing supports a second end portion of the worm. An urging member oscillates and urges the worm. The sum of first frictional resistance in the axial direction between an inner ring of the first bearing and the worm and second frictional resistance in the axial direction between the urging member and an outer circumference of an outer ring of the second bearing is less than engagement frictional resistance in the axial direction of the worm.
摘要翻译： 在电动助力转向系统的减速器中，第一轴承支撑蜗杆的第一端部，使得第一端部能够沿轴向移动。 弹性构件沿轴向方向弹性地支撑蜗杆。 第二轴承支撑蜗杆的第二端部。 推动构件振动并促使蠕虫。 在第一轴承的内圈和蜗杆之间的轴向上的第一摩擦阻力的总和和第二轴承的外圈之间的推压部件和外周之间的轴向上的第二摩擦阻力的总和小于接合摩擦 蠕虫轴向阻力。
-
-
-
搜索结果
4 条记录 (耗时 0.011 秒)
