초록 ▼

A low voltage direct current motorized servoactuator having an output gear position feedback potentiometer with a ring gear received initially loosely on the potentiometer shaft and in engagement with the output gear. A collar keyed hinged to the potentiometer shaft, but axially movable thereon, per

A low voltage direct current motorized servoactuator having an output gear position feedback potentiometer with a ring gear received initially loosely on the potentiometer shaft and in engagement with the output gear. A collar keyed hinged to the potentiometer shaft, but axially movable thereon, permits the output gear to be positioned independently of the potentiometer for calibration without disengaging the ring gear. With the output gear in the desired position, the potentiometer shaft is rotated until the potentiometer reads the desired percentage of its full scale resistance or voltage output; and, the collar is then moved axially to a press fit with the ring gear to lock the calibration and thereafter to rotate the potentiometer shaft with rotation of the ring gear. The motor drive pinion is a worm formed of material having a minor fraction (18%) of chloro-fluorinated polymer and a lesser fraction (2%) of lubricant, balance polyimide plastic material. The driven gears are formed of material having a minor fraction (18%) of chloro-fluorinated polymer and a lesser fraction (2%) of lubricant, balance acetal plastic material.

대표청구항 ▼

A servoactuator comprising: (a) housing means; (b) motor means mounted on said housing means and operable upon electrical energization to provide rotation of a motor shaft; (c) speed reducing means driven by said motor shaft and having an output gear means adapted for connection to a device to be dr

A servoactuator comprising: (a) housing means; (b) motor means mounted on said housing means and operable upon electrical energization to provide rotation of a motor shaft; (c) speed reducing means driven by said motor shaft and having an output gear means adapted for connection to a device to be driven; (d) feedback means having a rotatable input shaft means having a rotatable input shaft means, said feedback means adapted for connection to a source of electrical potential and operative thereupon to provide an electrical signal indicative of the rotational position of said input shaft means, said feedback means including driven gear means engaging said speed reducing output gear means; (e) a retaining member movable axially with respect to said input shaft means between a first position permitting relative rotation between said driven gear means and said retaining member and a second position preventing relative rotation therebetween; and, (f) means operable to transmit torque between said retaining member and said input shaft means.