公开(公告)号：US20040077456A1

公开(公告)日：2004-04-22

申请号：US10661592

申请日：2003-09-15

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Tatsuomi Nakayama ,  Minoru Ota ,  Hidenori Watanabe ,  Mamoru Saito

IPC: F16H015/38

CPC classification number: F16H15/38

Abstract: For producing a toroidal disc for a traction drive device, the following steps are employed. First, a circular steel body is prepared which has been subjected to a carbonitriding hardening/tempering process. The steel body has a concentric toroidal surface which is formed with a plurality of fine recesses each having a depth of smaller than 3 nullm. Then, the circular steel body is turned about a rotation axis thereof. Then, a ball member is pressed against the toroidal surface with a given pressing force. And then, the ball member is moved on a given angular range of the toroidal surface in a direction perpendicular to the rotation axis of the circular steel body while being pressed against the toroidal surface with the given pressing force.

Abstract translation: 为了制造用于牵引驱动装置的环形盘，采用以下步骤。 首先，制备已进行碳氮共渗硬化/回火处理的圆钢体。 钢体具有同心圆环表面，其形成有多个深度小于3μm的精细凹槽。 然后，圆钢体围绕其旋转轴线转动。 然后，以给定的按压力将球形构件压在环形表面上。 然后，在以给定的按压力压在环形表面上的同时，圆形构件在垂直于圆钢主体的旋转轴线的方向上在环形表面的给定角度范围上移动。

公开(公告)号：US20040082272A1

公开(公告)日：2004-04-29

申请号：US10686590

申请日：2003-10-17

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Tatsuomi Nakayama ,  Minoru Ota ,  Minoru Numakura ,  Mamoru Saito ,  Hidenori Watanabe

IPC: B24B049/00 ,  B24B051/00

CPC classification number: B24B19/02 ,  B23B5/40 ,  F16H15/38

Abstract: A method of forming a traction drive rolling element including: forming a preform having a working surface with an arcuate profile in section taken along a central axis; supporting the preform to be rotatable about the central axis; allowing a relative movement between the preform and a grooving tool for moving the grooving tool along the arcuate profile, simultaneously with rotating the preform about the central axis, to form microscopic recesses and projections alternately arranged in a direction perpendicular to the central axis along the arcuate profile; pressing a grindstone having a contact surface area of 25 mm2 or less, on the working surface; and allowing a relative movement between the preform and the grindstone for moving the grindstone along the arcuate profile simultaneously with rotating the preform while keeping pressing the grindstone on the working surface until a height of the microscopic projections becomes 3 nullm or less.

Abstract translation: 一种形成牵引驱动滚动元件的方法，包括：沿着中心轴线形成具有弓形轮廓的工作表面的预成型件; 支撑预成型件可围绕中心轴线旋转; 允许预成型件和用于沿着弧形轮廓移动切槽工具的切槽工具之间的相对运动，同时围绕中心轴线旋转预成型件，以形成沿着与弓形管的垂直于中心轴线的方向交替布置的微观凹槽和突起 简介 在工作面上挤压接触面积为25mm 2以下的磨石; 并且允许预成型件和砂轮之间的相对运动，用于沿着弓形轮廓同时移动砂轮，同时旋转预制件，同时保持将磨石压在工作表面上，直到微突起的高度为3μm或更小。