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Worm driving a servo actuator with spring return and rotary valve employing same
Worm driving a servo actuator with spring return and rotary valve employing same
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机译:蜗杆驱动带有弹簧复位的伺服执行器和采用该伺服执行器的旋转阀
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摘要
A motorized servo actuator has an output shaft rotated by a sector gear driven by a worm. The worm has a co-axially disposed torsion spring which is wound as the worm rotates. The worm is driven by a motor and gear train. In the event of motor failure during rotation of the sector gear in a given direction from an initial position, the wound torsion spring has sufficient stored energy to rotate the worm to return the sector gear to the initial position.
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