Development Report:
Development of an Electro-Hydrostatic Actuator CADUCEUS and an Actuator-Equipped Rotary Mechanism
Kwanwai Mak*
and Koichi Osuka**
*Komatsu MIRAI Construction Equipment Cooperative Research Center, Graduate School of Engineering, Osaka University
Central Terrace 5F, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
**Graduate School of Engineering, Osaka University
2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
An actuator for achieving the same force in both directions, and a mechanism for supporting rotary motion with the actuator are proposed. By fabricating models and performing tests, the action of the actuator mechanism, and its application on an excavator was demonstrated. Simulations on the arm-moving task performed on a conventional excavator and an excavator with the actuator mechanism show an efficiency improvement with the use of the proposed actuator mechanism, particularly when the arm is driven at low speed.
A model with proposed rotary mechanisms
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