公开(公告)号：US20020155919A1

公开(公告)日：2002-10-24

申请号：US10078060

申请日：2002-02-20

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Toshikazu Nanbu ,  Nobutaka Chiba ,  Makoto Kano ,  Yoshiteru Yasuda

IPC: F16H015/38

CPC classification number: F16H15/38 ,  Y10S977/724 ,  Y10S977/742 ,  Y10S977/863 ,  Y10T82/18

Abstract: A traction drive rotary assembly including a plurality of rolling elements having traction contact surfaces associating with each other to transmit power between the rolling elements. At least one of the traction contact surfaces has a surface microstructure including grooves and protrusions alternately arranged. The surface microstructure is represented by an unfiltered primary profile curve including recesses and projections corresponding to the grooves and the protrusions. Each projection includes a portion located higher than a center line of the unfiltered primary profile curve and having a shape selected from a generally trapezoidal shape with rounded corners, a generally crowning shape, a generally elliptic arc shape, a generally sinusoidal shape and a generally triangular shape with a rounded apex. A ratio null/AMP of a wavelength null of the unfiltered primary profile curve to a half depth AMP of the recess is in a range of 50-400.

Abstract translation: 牵引驱动旋转组件，其包括具有彼此相关联的牵引接触表面的多个滚动元件，以在所述滚动元件之间传递动力。 牵引接触表面中的至少一个具有交替布置的包括凹槽和凸起的表面微结构。 表面微观结构由未过滤的主轮廓曲线表示，其包括对应于凹槽和突起的凹槽和凸起。 每个突起包括位于高于未过滤的初级轮廓曲线的中心线的部分，并且具有选自具有圆角的大体梯形形状的形状，大致为凸面的形状，大致椭圆弧形，大致正弦形状和大致三角形 形状与圆顶。 未过滤的主轮廓曲线的波长长度与凹部的半深度AMP的比值lambd / AMP在50-400的范围内。

公开(公告)号：US20020002098A1

公开(公告)日：2002-01-03

申请号：US09893451

申请日：2001-06-29

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Toshikazu Oshidari ,  Jun Watanabe ,  Nobutaka Chiba ,  Toshikazu Nanbu ,  Makoto Kanou

IPC: F16H015/38 ,  F16H055/32

CPC classification number: F16H15/38 ,  F16H55/34

Abstract: A toroidal continuously variable transmission including input and output disks having a common first rotation axis about which the disks are rotatable, and a power roller swingably interposed between the disks and having a second rotation axis intersecting the first rotation axis, about which the power roller is rotatable. The input and output disks and the power roller have traction surfaces cooperating with each other to transmit rotation therebetween. At least one of the input and output disks and the power roller has a surface roughness on the traction surface thereof which varies in a direction of the rotation axis thereof.

Abstract translation: 一种环形无级变速器，包括具有共同的第一旋转轴的输入和输出盘，盘可旋转;以及动力辊，其可摆动地插入在盘之间并且具有与第一旋转轴线相交的第二旋转轴线，动力辊 可旋转 输入和输出盘和动力辊具有彼此协作以在其间传递旋转的牵引表面。 输入和输出盘和动力辊中的至少一个在其牵引表面上具有在其旋转轴线的方向上变化的表面粗糙度。

公开(公告)号：US20030200846A1

公开(公告)日：2003-10-30

申请号：US10425917

申请日：2003-04-30

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Nobutaka Chiba ,  Toshikazu Nanbu ,  Makoto Kano ,  Jun Watanabe ,  Kenshi Ushijima ,  Masahiro Omata ,  Minoru Oota ,  Hiroo Ueda ,  Manabu Wakuda

IPC: B23B005/28

CPC classification number: F16H55/32 ,  F16H15/38 ,  F16H2055/325 ,  Y10T82/18 ,  Y10T82/2522

Abstract: A rotary assembly for traction drives, including a plurality of rolling elements having a rotation axis and traction contact surfaces around the rotation axis and associating with each other to transmit a motive power between the rolling elements via a traction oil film formed between the traction contact surfaces, in which at least one of the traction contact surfaces has a microstructure with irregularities which sizes are larger than a thickness of the traction oil film. The process for the traction contact surface is also disclosed.