| 摘要 |
PURPOSE: An actuator for controlling a hydraulic transmission is provided to prevent an overload failure of an actuator based on a first sensor which stops the actuator regarding the displacement limit of a swash plate shaft as well as make an actuator and a hydraulic transmission more durable. CONSTITUTION: A first arm (111) is fixed on the swash plate shaft (110) of a hydraulic transmission (100) and a second arm (122) on the rotary shaft of an actuator (120). The first arm and the second arm are hinged to the two ends of a first link (123). The second arm spins having the rotary shaft as the center when the motor (125) of the actuator works. As the first link is connected to an end of the second link, the first link starts moving to spin the swash plate shaft. The L-shaped second arm is bended at the middle point, to which the rotary shaft is connected. While one end of the second arm is hinge-engaged with the first arm, the other end is hinged to one end of a second link (127). The other end of the second link is hinged to a third arm (131) of an angle measurement sensor (130). Limit sensors are placed on both sides of the bended point of the L-shaped second arm in order to stop the second arm from spinning regarding the limit of the swash plate shaft. |
