| 摘要 |
A rotational torsion tester, comprising: a first drive shaft that rotates about a predetermined rotation axis, an end of a workpiece being attached to the first drive shaft; a second drive shaft that rotates about the predetermined rotation axis, the other end of the workpiece being attached to the second drive shaft; a load applying unit that applies a torsional load to the workpiece by supporting the first drive shaft and by driving and rotating the first drive shaft; at least one first bearing that supports the load applying unit to be rotatable about the predetermined rotation axis; a rotation drive unit that drives the first drive shaft and the load applying unit to rotate in phase; and a torque sensor that detects the torsional load. The load applying unit comprises a frame having a cylindrical shaft part into which the first drive shaft is inserted, the frame is supported by the first bearing at the shaft part and the frame supports the first drive shaft, and the torque sensor is attached to a part at which the first drive shaft is inserted into the shaft part, and detects the torsional load at the part. |
