Title:
インベアリングトルクセンサ機器
Document Type and Number:
Japanese Patent JP2005527832
Kind Code:
A
Abstract:
The present disclosure provides a device for sensing a torque applied through a shaft (18). The device includes a shaft (18) and a bearing (40) attached to the shaft (18). The bearing (40) includes an inner race (44), an outer race (42) and a plurality of rolling elements (46). A magnetoelastic ring (24) is press-fit onto the inner race (44). An eddy current or a magnetic field sensor (30) is placed in close proximity to the magnetoelastic ring (24). In the case of an eddy current sensor (30), the magnetoelastic ring (24) is not magnetized. In the case of a magnetic field sensor (30), the magnetoelastic ring (24) is magnetically circularly polarized. In either case, the chosen sensor (30) senses the induced changes of the magnetoelastic ring (24) characteristics and its associated electronics provides a measure of the applied torque.
Inventors:
Valonis, Orestes, Jay.
Application Number:
JP2004509364A
Publication Date:
September 15, 2005
Filing Date:
May 29, 2003
Export Citation:
Assignee:
THE TIMKEN COMPANY
International Classes:
F16C19/36; F16C19/52; G01L3/10; (IPC1-7): G01L3/10
Domestic Patent References:
| JPH07158636A | 1995-06-20 | |||
| JP2001033322A | 2001-02-09 | |||
| JPS589034A | 1983-01-19 | |||
| JPS60143735A | 1985-07-30 | |||
| JPS637337U | 1988-01-19 | |||
| JPS62184323A | 1987-08-12 | |||
| JPH11132878A | 1999-05-21 | |||
| JPH08271355A | 1996-10-18 |
Attorney, Agent or Firm:
Tetsuro Hoshino
Akihiko Yamashita
Kishimoto Tatsuto
Akihiko Yamashita
Kishimoto Tatsuto