ACTUATOR WITH POSITION DETECTING MECHANISM

摘要

An actuator with a position detection mechanism includes a main body, a transmission mechanism, a quick-release mechanism and a position detection mechanism. The transmission mechanism includes a worm gear with protruding keys and a lead screw shaft. The quick-release mechanism is mounted onto the lead screw shaft and includes a clutch gear with key slots for disengaging or engaging with the protruding keys in order to move axially relative to the worm gear. The position detection mechanism includes a variable resistor, an actuating gear mounted on the lead screw shaft to rotate altogether therewith and a driving gear connected to the variable resistor and engaged with the actuating gear. When the worm gear disengages from the clutch gear, a particular resistor value is formed at the variable resistor; therefore, disengaged or engaged positions of the worm gear and the clutch gear can be precisely controlled.

主权项

1. An actuator with a position detection mechanism, comprising:
a main body (10); a transmission mechanism (20) installed on said main body (10) and comprising a worm gear member (21) and a lead screw shaft (22) penetrating through said worm gear member (21); said worm gear member (21) comprising a plurality of protruding keys (211); a quick-release mechanism (30) mounted on said lead screw shaft (22) and arranged on one side of said worm gear member (21) and comprising an clutch gear (32); said clutch gear (32) configured to move axially relative to said worm gear member (21) and comprising a plurality of key slots (321) to engage in transmission or disengage from transmission with said plurality of protruding keys (211); and a position detection mechanism (40) comprising a variable resistor (41), an actuating gear (42) and a driving gear (43); said actuating gear (42) mounted on said lead screw shaft (22) to rotate altogether therewith; said driving gear (43) connected to said variable resistor (41) and engaged with said actuating gear (42) for transmission; wherein when said worm gear member (21) is released from said clutch gear (32), a particular resistor value is formed at said variable resistor (41).