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1. (WO2018088054) ROTATIONAL TORSION TESTER

Pub. No.:    WO/2018/088054    International Application No.:    PCT/JP2017/035139
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Fri Sep 29 01:59:59 CEST 2017
IPC: G01M 13/02
Applicants: SAGINOMIYA SEISAKUSHO, INC.
株式会社鷺宮製作所
Inventors: HOSAKA Tomohiro
保阪 友宏
IN Eisei
伊 栄生
Title: ROTATIONAL TORSION TESTER
Abstract:
A rotational torsion tester (1) which eliminates the need for a hydraulic actuator for rotationally rocking a rotary drive motor side rotating shaft in forward and reverse rotational directions, and which achieves an energy saving, is provided with: a rotary drive motor (4) for driving in rotation a specimen target object (2a), held on an output side rotating shaft (6); a rocking excitation drive motor (5) for rotationally rocking the specimen target object (2a) in forward and reverse rotational directions; a speed reducer mechanism (7) to an input side of which a rotary drive shaft (4a) of the rotary drive motor (4) and a rotational rocking drive shaft (5a) of the rocking excitation drive motor (5) are coupled, and which is coupled by way of an output side rotating shaft (6) to the specimen target object (2a); and a reaction force shaft (8) which is coupled between a specimen holding unit (3) and the rotary drive shaft (4a) of the rotary drive motor (4), and which transmits a reaction force relative to a load acting on a specimen (2) to the speed reducer mechanism (7). A combination of the rotation of the rotary drive motor (4) and the rotational rocking of the rocking excitation drive motor (5) is transmitted by the speed reducer mechanism (7) to the specimen (2).