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公开(公告)号：US09067491B2
公开(公告)日：2015-06-30
申请号：US14354765
申请日：2012-10-24
Applicant: NSK Ltd.
Inventor： Kazutaka Tanaka , Eiji Inoue , Takashi Imanishi , Yasuyuki Matsuda , Daisuke Gunji
CPC classification number: B60K17/12 , B60K1/00 , B60K2001/001 , B60L15/2054 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/486 , F16H3/46 , F16H3/663 , F16H2003/442 , F16H2061/2884 , F16H2061/2892 , F16H2200/0021 , F16H2200/0034 , F16H2200/2005 , F16H2200/2023 , F16H2200/2035 , H02K7/116 , Y02T10/641 , Y02T10/645 , Y02T10/72 , Y02T10/7275
Abstract: Construction capable of improving the convenience of an electric automobile is achieved by making the drive apparatus for an electric automobile in which a planetary-gear transmission 11 is assembled more compact and simple, and increasing the distance traveled per charge. The planetary-gear transmission 11 comprises a single-pinion first planetary-gear mechanism 12 and a double-pinion second planetary-gear mechanism 13, and reduces power from an electric motor 1a by a desired reduction ratio before transmitting that power to a driven-side rotating shaft 5a. A first braking device 14 switches a ring gear 22 and a second braking device 15 switches a second sun gear 19 between a state of being allowed to rotate and a state of being prevented from rotating with respect to a fixed portion.
Abstract translation: 通过使行星齿轮传动装置11组装的电动汽车的驱动装置更紧凑，简单，并且增加每次充电的行驶距离，可以实现提高电动汽车便利性的结构。 行星齿轮传动装置11包括单小齿轮第一行星齿轮机构12和双小齿轮第二行星齿轮机构13，并且在将动力传递到被驱动机构13之前，将来自电动机1a的功率降低期望的减速比。 侧旋转轴5a。 第一制动装置14切换环形齿轮22，并且第二制动装置15在允许转动的状态和防止相对于固定部旋转的状态之间切换第二太阳齿轮19。
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公开(公告)号：US20140287863A1
公开(公告)日：2014-09-25
申请号：US14354765
申请日：2012-10-24
Applicant: NSK Ltd.
Inventor： Kazutaka Tanaka , Eiji Inoue , Takashi Imanishi , Yasuyuki Matsuda , Daisuke Gunji
CPC classification number: B60K17/12 , B60K1/00 , B60K2001/001 , B60L15/2054 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/486 , F16H3/46 , F16H3/663 , F16H2003/442 , F16H2061/2884 , F16H2061/2892 , F16H2200/0021 , F16H2200/0034 , F16H2200/2005 , F16H2200/2023 , F16H2200/2035 , H02K7/116 , Y02T10/641 , Y02T10/645 , Y02T10/72 , Y02T10/7275
Abstract: Construction capable of improving the convenience of an electric automobile is achieved by making the drive apparatus for an electric automobile in which a planetary-gear transmission 11 is assembled more compact and simple, and increasing the distance traveled per charge. The planetary-gear transmission 11 comprises a single-pinion first planetary-gear mechanism 12 and a double-pinion second planetary-gear mechanism 13, and reduces power from an electric motor 1a by a desired reduction ratio before transmitting that power to a driven-side rotating shaft 5a. A first braking device 14 switches a ring gear 22 and a second braking device 15 switches a second sun gear 19 between a state of being allowed to rotate and a state of being prevented from rotating with respect to a fixed portion.
Abstract translation: 通过使行星齿轮传动装置11组装的电动汽车的驱动装置更紧凑，简单，并且增加每次充电的行驶距离，可以实现提高电动汽车便利性的结构。 行星齿轮传动装置11包括单小齿轮第一行星齿轮机构12和双小齿轮第二行星齿轮机构13，并且在将动力传递到被驱动机构13之前，将来自电动机1a的功率降低期望的减速比。 侧旋转轴5a。 第一制动装置14切换环形齿轮22，并且第二制动装置15在允许转动的状态和防止相对于固定部旋转的状态之间切换第二太阳齿轮19。
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公开(公告)号：US10309501B2
公开(公告)日：2019-06-04
申请号：US15313167
申请日：2015-03-25
Applicant: NSK LTD.
Inventor： Hiroyasu Yoshioka , Yasuyuki Matsuda , Kazutaka Tanaka , Takashi Imanishi
Abstract: A sun roller of a friction roller-type transmission includes a movable sun roller element (23) capable of moving in an axial direction. Furthermore, the sun roller is provided with a loading cam mechanism which is formed along the circumferential direction of an input shaft (12), the loading cam mechanism having a first cam surface (75), a second cam surface (77) arranged facing the first cam surface (75) and secured to the input shaft (12), rolling elements (63) held between the first and second cam surfaces (75, 77), and an annular holding device (51), and the loading cam mechanism axially displacing the movable sun roller element (23). The holding device (51) has an inside-diameter-surface guiding part (81) for positioning the holding device relative to the input shaft by being fitted over the input shaft, the guiding part being provided to the inside diameter surface.
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公开(公告)号：US10167932B2
公开(公告)日：2019-01-01
申请号：US15514285
申请日：2014-09-26
Applicant: NSK LTD.
Inventor： Hiroyasu Yoshioka , Eiji Inoue , Takashi Imanishi , Hirotaka Kishida
Abstract: Projections protruding towards a cam plate and a disc are provided on both axial side surfaces of the retainer at a plurality of positions at which phases of the projections in the circumferential direction are offset from pockets. One axial direction surface of the cam plate and the disc are formed with concave portions at portions facing the respective projections. The concave portions have an axial depth deepest at a center portion thereof in the circumferential direction and becoming shallower towards both end portions thereof.
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