| 摘要 |
PROBLEM TO BE SOLVED: To provide an alignment mechanism capable of reducing frictional resistance by alignment, a highly accurate thrust rotary test machine using the same, and a torque measuring device using the thrust rotary test machine.SOLUTION: A base 23 is supported in a non-contact manner by compressed gas to be evenly emitted from a static pressure gas bearing surface 27 of an alignment base 26. A load L is added from the alignment base 26 to the base 23 by a load mechanism 24, and a rotor 21 is rotated by a motor 22 in a state of pressing a test object 5 on the base 23. A load cell 3 detects torque to be transmitted to the base 23 via the test object 5. The static pressure gas bearing surface 27 has a spherical recessed shape, and the base 23 has a spherical projected surface 231 with the approximately same diameter as that of the static pressure gas bearing surface 27 as the opposite surface with the static pressure gas bearing surface 27. Thus, when the load L inclines relative to a thrust direction S, the alignment base 26 relatively slides relative to the base 23 while maintaining thickness of a compressed gas layer 28, and thus, the base 23 maintains a perpendicular state relative to the thrust direction S. |
