| 摘要 |
A rotary actuator for torsional fatigue test machine is provided to compensate for radial load by installing slide units at a rotary shaft. A rotary actuator for torsional fatigue test machine comprises a rotor housing(1), an output shaft(2), an operating unit, a sealing vane(4), an auxiliary operating unit, and a slide unit. The rotor housing includes an operating chamber(111). The output shaft is installed in the operation chamber and provided with a rotating body having rotor vanes. The operating unit sends fluid to the operating chamber and rotates the output shaft. The sealing vane outwards moves in an insertion hole formed at the center rotor vanes. The auxiliary operating unit moves each sealing vane outwards by supplying additional fluid. The output shaft includes front and rear rotary shafts(22) passing through front and rear covers(12) of the operating chamber. The slide unit is installed in a hole(121) formed at the front and rear covers and the front and rear rotary shafts. |
