| 摘要 |
According to the present invention, a hydraulic rotary actuator is provided. A supply line and a discharge line of hydraulic oil for driving a hydraulic rotary actuator are installed in the hydraulic rotary actuator. The hydraulic rotary actuator comprises: a stator which has a hollow portion; a rotator which is inserted to the hollow portion and is rotated by hydraulic oil supplied to the hollow portion; a servo control valve which is coupled to the stator and controls a flow rate of the hydraulic oil; a supply line which is connected to the servo control valve, is connected from the servo control valve to the hollow portion, is formed as a hole penetrating the stator, and forms a supply path of the hydraulic oil in the stator; and a discharge line which is connected from the hollow portion to the servo control valve, is opened from the servo control valve to the outside of the stator, is formed as a hole penetrating the stator, and forms a discharge path of the hydraulic oil in the stator. Accordingly, it is possible to easily assemble and install the hydraulic rotary actuator and to eliminate restrictions on the operation range of the entire structure by a hydraulic rotary actuator which may be restricted in accordance with the length of a supply line and a discharge line of hydraulic oil. |
