公开(公告)号：US20030195081A1

公开(公告)日：2003-10-16

申请号：US10437193

申请日：2003-05-14

Applicant: NSK Ltd.

Inventor： Hisashi Machida ,  Kouji Ishikawa ,  Takashi Imanishi ,  Hiroyuki Itoh ,  Tomofumi Yamashita

IPC: F16H015/38

CPC classification number: F16H15/38 ,  F16H61/664

Abstract: In a toroidal type continuously variable transmission, first pivot shafts provided on both ends of first trunnions are supported within support holes formed in yokes secured to an inner surface of a casing. The support portions are provided with ball splines and radial needle bearings. During operation, loads acting on the first trunnions are canceled within the yokes. Axial displacements and rocking displacements of the first trunnions are effected smoothly by the ball splines and the radial needle bearings.

Abstract translation: 在环形无级变速器中，设置在第一耳轴两端的第一枢轴被支撑在形成在固定到壳体内表面的轭的支撑孔中。 支撑部分设有滚珠花键和径向滚针轴承。 在操作期间，作用在第一耳轴上的负载在轭内取消。 第一耳轴的轴向位移和摆动位移由滚珠花键和径向滚针轴承平滑地实现。

公开(公告)号：US20030190994A1

公开(公告)日：2003-10-09

申请号：US10407246

申请日：2003-04-07

Applicant: NSK Ltd.

Inventor： Kouji Ishikawa ,  Takashi Imanishi

IPC: F16H015/38

CPC classification number: F16H57/043 ,  F16H15/38 ,  F16H57/049

Abstract: A toroidal-type continuously variable transmission, includes: a trunnion including: a support plate portion; and a pair of bent wall portions formed in longitudinal-direction two end portions of the support plate portion and bent on an inner surface side of the support plate portion, the pivot shafts being disposed concentrically with each other on outer surfaces of the bent wall portions; a trunnion shaft formed integrally with the pivot shaft; an oil pressure piston fitted with an outer peripheral surface of the trunnion shaft for moving the trunnions along the axial direction of the pivot shaft; and, a cut-away portion formed in the outer peripheral surface of the trunnion shaft for forming, between the cut-away portion and the oil pressure piston, an oil passage for a lubricating oil to be supplied to the bearing for a power roller.

Abstract translation: 环形无级变速器，包括：耳轴，包括：支撑板部分; 以及一对弯曲壁部，其形成在所述支撑板部的长度方向的两端部并且在所述支撑板部的内表面侧弯曲，所述枢轴在所述弯曲壁部的外表面上彼此同心地配置 ; 与枢转轴一体形成的耳轴; 安装有所述耳轴的外周面的油压活塞，用于沿所述枢轴的轴向移动所述耳轴; 以及形成在所述耳轴的外周面的切除部，用于在所述切除部和所述油压活塞之间形成供给到用于动力辊的轴承的润滑油的油路。

公开(公告)号：US20040116241A1

公开(公告)日：2004-06-17

申请号：US10653256

申请日：2003-09-03

Applicant: NSK LTD.

Inventor： Kouji Ishikawa ,  Eiji Inoue

IPC: F16H015/38

CPC classification number: F16H15/38

Abstract: A power roller unit for a toroidal-type continuously variable transmission, has: a trunnion including a support plate portion, a pair of bent wall portions, two pivot shafts, and a connecting member; a displacement shaft; a power roller; a thrust ball bearing including an outer ring, a ball, and a retainer; a thrust bearing, wherein the thrust bearing is held by a hold portion disposed in the support plate portion, and wherein, where the distance between the small end face of the power roller and the connecting member is expressed as a, the distance between the outer ring and the opposed surface of the hold portion opposed to the outer ring is expressed as b, and the thickness of the thrust bearing is expressed as c, the sum of a and b is set smaller than c.

Abstract translation: 一种用于环形无级变速器的动力辊单元，具有：包括支撑板部分，一对弯曲壁部分，两个枢转轴和连接部件的耳轴; 位移轴; 动力辊; 包括外圈，球和保持器的推力球轴承; 推力轴承，其中所述推力轴承由设置在所述支撑板部分中的保持部分保持，并且其中，当所述动力辊的小端面与所述连接构件之间的距离表示为a时，所述外部 并且与外圈相对的保持部的相对面被表示为b，推力轴承的厚度表示为c，将a和b的和设定为小于c。

公开(公告)号：US20030060324A1

公开(公告)日：2003-03-27

申请号：US10228141

申请日：2002-08-27

Applicant: NSK LTD.

Inventor： Kouji Ishikawa ,  Yutaka Sato ,  Masami Tanaka ,  Tomofumi Yamashita ,  Nobuo Goto

IPC: F16H015/38

CPC classification number: F16H15/38

Abstract: A trunnion of a toroidal-type continuously variable transmission has a support plate portion for supporting a displacement shaft and a pair of bent wall portions respectively bent toward the inner surface side of the support plate portion. The support plate portion and the pair of bent wall portions cooperates together in defining a pocket portion for storing a power roller therein. Pivot shafts are disposed concentrically with each other on the outer surfaces of the pair of bent wall portions. The pair of bent wall portions are connected together by a connecting member. The connecting member includes a pressure receive portion contactable with the inner surface of the pocket portion in a direction intersecting substantially at right angles to the thrust direction and receiving a pressing force acting on the pocket portion to crush the pocket portion.

Abstract translation: 环形无级变速器的耳轴具有用于支撑位移轴的支撑板部分和分别朝向支撑板部分的内表面侧弯曲的一对弯曲壁部分。 支撑板部分和一对弯曲壁部分配合在一起，以限定用于在其中存储动力辊的凹部。 枢转轴彼此同心地设置在一对弯曲壁部分的外表面上。 一对弯曲壁部分通过连接部件连接在一起。 连接构件包括压力接收部分，该压力接收部分沿着与推力方向成直角相交的方向与口袋部分的内表面接触并且接收作用在口袋部分上的挤压力以压缩口袋部分。

公开(公告)号：US20040142789A1

公开(公告)日：2004-07-22

申请号：US10754561

申请日：2004-01-12

Applicant: NSK Ltd.

Inventor： Masato Yoshida ,  Kouji Ishikawa ,  Takashi Imanishi

IPC: F16H015/38

CPC classification number: F16H57/0434 ,  F16H15/38 ,  F16H57/049

Abstract: In a toroidal continuously variable transmission the amount of traction oil provided to contact areas between the power rollers and the input and output discs is increased as a power to be transmitted is increased. Nozzle holes formed in rockable trunnions of the transmission so that the traction oil ejected from the nozzle holes is sprayed to circumferential positions of inner surfaces of input and output discs that are in contact with peripheral surfaces of power rollers. Transmission efficiency is enhanced while maintaining endurance and reliability without supplying excessive traction oil.

公开(公告)号：US20030134711A1

公开(公告)日：2003-07-17

申请号：US10345335

申请日：2003-01-16

Applicant: NSK LTD.

Inventor： Kouji Ishikawa ,  Yutaka Sato

IPC: F16H015/38

CPC classification number: F16H15/38

Abstract: A toroidal-type continuously variable transmission has: an input shaft; an input disk and an output disk; a displacement shaft having a support shaft portion and a pivotal shaft portion; a trunnion having a support hole for supporting the support shaft portion; a first radial bearing supporting the support shaft portion within the support hole; a power roller having an insertion hole for receiving the pivot shaft portion; a second radial bearing supporting the pivot shaft portion within the insertion hole; and a thrust bearing including an outer ring and rolling elements, wherein a first bottom plate portion is provided at the support hole so as to close an opening of the support hole, a second bottom plate portion is provided at the insertion hole so as to close an opening of the insertion hole; and the displacement shaft and the outer ring are formed integrally with each other.

Abstract translation: 环形无级变速器具有：输入轴; 输入盘和输出盘; 位移轴，其具有支撑轴部和枢转轴部; 具有用于支撑所述支撑轴部的支撑孔的耳轴; 第一径向轴承，其支撑所述支撑轴内的所述支撑轴部; 动力辊，具有用于容纳枢转轴部的插入孔; 在所述插入孔内支撑所述枢轴部的第二径向轴承; 以及包括外圈和滚动元件的止推轴承，其中在所述支撑孔处设置有第一底板部分，以便关闭所述支撑孔的开口，在所述插入孔处设置第二底板部分以关闭 插孔的开口; 并且位移轴和外圈彼此一体地形成。

公开(公告)号：US20020147069A1

公开(公告)日：2002-10-10

申请号：US10115127

申请日：2002-04-04

Applicant: NSK LTD.

Inventor： Kouji Ishikawa ,  Nobuo Goto ,  Takashi Imanishi

IPC: F16H015/38

CPC classification number: F16H15/38

Abstract: A double-cavity toroidal-type continuously variable transmission includes a case, a drive shaft and a toroidal transmission mechanism portion. The toroidal transmission mechanism portion includes a gear housing for supporting an output gear, and a yoke for supporting a pivot shaft of a trunnion in an oscillatable manner. The support post for supporting the yoke and a fixing member for fixing the gear housing and the support post to the case are connected together or are formed as an integral body.

Abstract translation: 双腔环形无级变速器包括壳体，驱动轴和环形传动机构部分。 环形传动机构部分包括用于支撑输出齿轮的齿轮壳体和用于以可振荡的方式支撑耳轴的枢转轴的轭。 用于支撑轭的支撑柱和用于将齿轮壳体和支撑柱固定到壳体的固定构件连接在一起或形成为一体。

公开(公告)号：US20040157695A1

公开(公告)日：2004-08-12

申请号：US10775102

申请日：2004-02-11

Applicant: NSK LTD.

Inventor： Kouji Ishikawa ,  Masami Tanaka ,  Takashi Imanishi

IPC: F16H037/02

CPC classification number: F16H15/38 ,  F16H37/086 ,  F16H57/0428 ,  F16H57/049 ,  F16H2037/0886

Abstract: A toroidal-type continuously variable transmission, includes: an input shaft; a pair of mutually opposed input and output disks disposed side-by-side in an axial direction of the input shaft; a pressing mechanism pressing said input disk toward said output disk; a hollow shaft disposed around an outer periphery of the input shaft concentrically with the input shaft, and connecting the pair of input disks to each other; an oil hole formed in a no-penetrating portion of the input shaft where the input shaft does not penetrate through the hollow shaft, and opened on an outer peripheral surface of the no-penetrating portion; and, an oil passage formed between an inner peripheral surface of the hollow shaft and an outer peripheral surface of a penetrating portion of the input shaft where the input shaft penetrates through the hollow shaft.

公开(公告)号：US20030198422A1

公开(公告)日：2003-10-23

申请号：US10431236

申请日：2003-05-06

Applicant: NSK Ltd.

Inventor： Kouji Ishikawa

IPC: F16C033/58

CPC classification number: F16C19/10 ,  F16H15/38

Abstract: In a toroidal type continuously variable transmission, a power roller bearing that serves as a thrust bearing includes an inner race composed of a part of a power roller, an outer race opposed to the inner race, and balls arranged for rolling motion between the outer and inner races. The power roller is in rolling contact with input and output disks and pressed thereby in a thrust direction. An end face of the inner race is formed having a first raceway groove having an arcuate cross section and in contact with the balls. An end face of the outer race is formed having a second raceway groove having an arcuate cross section and in contact with the balls. The second raceway groove is shallower than the first raceway groove, and the center of each of the balls is situated nearer to the inner race than a center position between the respective end faces of the outer and inner races is.

Abstract translation: 在环形无级变速器中，用作推力轴承的动力滚子轴承包括由动力辊的一部分组成的内圈，与内圈相对的外座圈和布置成在外圈和外圈之间滚动的滚珠 内在的种族 动力辊与输入和输出盘滚动并按推力方向按压。 内圈的端面形成有具有弓形横截面并与球接触的第一滚道槽。 外圈的端面形成有具有弓形横截面并与球接触的第二滚道槽。 第二滚道槽比第一滚道槽浅，并且每个滚珠的中心比外圈和内圈的各个端面之间的中心位置更靠近内圈。

公开(公告)号：US20020115525A1

公开(公告)日：2002-08-22

申请号：US10058032

申请日：2002-01-29

Applicant: NSK LTD.

Inventor： Takashi Imanishi ,  Masami Tanaka ,  Tomofumi Yamashita ,  Kouji Ishikawa ,  Nobuo Goto

IPC: F16H015/38

CPC classification number: F16H15/38

Abstract: The present invention relates to a toroidal-type continuously variable transmission which comprises: a casing; input and output disks respectively including inner surfaces, disposed concentrically with each other inside the casing, and supported so as to rotated independently of each other; a plurality of trunnions each including even-numbered pivot shafts existing at right angles to a central-axis direction of the disks and disposed concentrically with to in parallel to each other, and being swingable about the pivot shafts; a plurality of shift shafts respectively projected out from the trunnions; a plurality of power rollers held by and between respective inner surfaces of the disks so as to be rotatably supported on the shift shafts; and a support member fixed directly to the casing and supporting the pivot shafts so as to be shifted in an axial and an inclined rotation direction thereof.

Abstract translation: 环形无级变速器技术领域本发明涉及一种环形无级变速器，其包括：壳体; 输入和输出盘，分别包括内壳体内同心设置的内表面，并被支撑为彼此独立地旋转; 多个耳轴，每个耳轴包括与盘的中心轴线方向成直角的偶数的枢转轴，并且彼此同心地设置并且可围绕枢转轴摆动; 分别从耳轴突出的多个换档轴; 多个动力辊，其由所述盘的内表面之间保持并且在所述盘的相应的内表面之间，以便被可旋转地支撑在所述换档轴上; 以及支撑构件，其直接固定到所述壳体并支撑所述枢轴，以便沿轴向和倾斜的旋转方向移动。