公开(公告)号：US20180313708A1

公开(公告)日：2018-11-01

申请号：US15771313

申请日：2016-10-27

Applicant: NSK LTD.

Inventor： Hiroki HAMADA ,  Yasuyuki MATSUDA ,  Masafumi HIKIDA ,  Hiroshi KAWAHARA ,  Daisuke GUNJI

IPC: G01L5/00 ,  B60B27/00

CPC classification number: G01L5/0023 ,  B60B27/0005 ,  B60B27/0026 ,  B60B27/0068 ,  B60B35/02 ,  F16C19/18 ,  F16C19/186 ,  F16C19/522 ,  F16C41/00 ,  F16C2326/02 ,  G01L5/00 ,  G01P15/18

Abstract: A vehicle wheel supporting rolling bearing unit includes a stationary side bearing ring member, a rotation side bearing ring member, and plural rolling elements. The rotation side bearing ring member is provided with a first acceleration sensor, a second acceleration sensor, and a third acceleration sensor which are fixed on a virtual plane orthogonal to a center axis of the rotation side bearing ring member. The first acceleration sensor and the second acceleration sensor are arranged on a virtual line passing through a rotation center of the rotation side bearing ring member with a same distance from the rotation center while detection directions thereof are directed in a radial direction and are opposite to each other in the radial direction. The third acceleration sensor is arranged such that a detection direction thereof is non-parallel to the detection directions of the first acceleration sensor and the second acceleration sensor.

公开(公告)号：US20160195442A1

公开(公告)日：2016-07-07

申请号：US14916668

申请日：2014-09-03

Applicant: NSK Ltd.

Inventor： Tomoharu SAITO ,  Yasuyuki MATSUDA ,  Daisuke GUNJI ,  Masafumi HIKIDA ,  Kazutaka TANAKA ,  Tohru UEDA ,  Yuka KANEKO ,  Tetsu TAKEHARA ,  Hiroyasu YOSHIOKA

IPC: G01L3/10

CPC classification number: G01L3/104 ,  G01L3/101 ,  G01L3/109 ,  G01L25/003

Abstract: In order to implement a structure capable of improving the resolution of torque measurement while preventing the plastic deformation of a torsion bar (15), an input-side stopper (61) having an uneven shape (gear shape) in the circumferential direction is provided in a portion of an input-side rotating body (55) that includes an input shaft (13) and an input gear (7), and an output-side stopper (63) having an uneven shape (gear shape) in the circumferential direction is provided in a portion of an output-side rotating body (56) that includes an output shaft (14) and an output gear (8). The input-side stopper (61) and the output-side stopper (63) are combined so as to be engaged to be able to transmit torque only when the torsional angle within the elastic range of the torsion bar (15) reaches a predetermined amount.

Abstract translation: 为了实现能够在防止扭杆（15）的塑性变形的同时提高转矩测量的分辨率的结构，在周向上具有不均匀形状（齿轮形状）的输入侧止动器（61）设置在 包括输入轴（13）和输入齿轮（7）的输入侧旋转体（55）的一部分和沿圆周方向具有不平坦形状（齿轮形状）的输出侧止动件（63） 设置在包括输出轴（14）和输出齿轮（8）的输出侧旋转体（56）的一部分中。 输入侧止动器（61）和输出侧止动器（63）被组合以仅在扭杆（15）的弹性范围内的扭转角达到预定量时才能够传递扭矩 。