ELECTRICALLY-DRIVEN OPERATION DEVICE AND WORKING MACHINE USING SAME

摘要

Provided are a highly reliable electrically-driven operation device capable of automatically correcting balance by a simple configuration with a small number of components, and a working machine using the same. A first electrically-driven actuator (1) is provided with an electric motor (M1) comprising a rotor position sensor (S), and a second electrically-driven actuator (2) is provided with an electric motor (M2) comprising no rotor position sensor. The outputs of the first electrically-driven actuator (1) and the second electrically-driven actuator (2) are combined by a trapezoidal link (3). The electric motor (M1) has a positional relationship between a rotor and a magnetic field in which the maximum torque under the operating condition thereof is generated. The electric motor (M2) deviates from a positional relationship between a rotor and a magnetic field in which the maximum torque under the operating condition thereof is generated, and gets into an operating state in which torque lower than the maximum torque is generated.