Invention Application
- Patent Title: TORQUE MEASURING DEVICE
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Application No.: US17637263Application Date: 2021-07-01
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Publication No.: US20220268649A1Publication Date: 2022-08-25
- Inventor: Takahiro ODERA , Junji ONO , Masahiro KOBAYASHI , Kota FUKUDA
- Applicant: NSK Ltd.
- Applicant Address: JP Tokyo
- Assignee: NSK Ltd.
- Current Assignee: NSK Ltd.
- Current Assignee Address: JP Tokyo
- Priority: JP2020-155208 20200916
- International Application: PCT/JP2021/025004 WO 20210701
- Main IPC: G01L3/10
- IPC: G01L3/10

Abstract:
A torque measuring device includes: a magnetostrictive sensor having a ring-shaped holder arranged around a magnetostrictively affected section of a rotating shaft, a detecting section embedded in the holder and that changing a voltage according to a change in magnetic permeability of the magnetostrictively affected section; and a sensor-side engaging section; and a fixed member having a fixed-side engaging section, the fixed member not rotating even during operation. One of the sensor-side engaging portion and the fixed-side engaging section is a convex section and the other is a concave section. With the sensor-side engaging section and the fixed-side engaging section engaged with a concave-convex engagement, shifting of the position of the magnetostrictive sensor in the direction of rotation and the radial direction with respect to the substrate is prevented.
Public/Granted literature
- US11473988B2 Torque measuring device Public/Granted day:2022-10-18
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