CYCLOID DRIVE EPICYCLOID PLANET GEAR CAM

摘要

An epicycloid planet gear cam that converts rotational movement of a driveshaft into linear movement of an output device is disclosed. An epicycloid planet gear is assembled inside a stationary housing with an internal stationary ring gear. A driveshaft eccentric is connected to a driveshaft. The driveshaft eccentric rotates freely in a mounting hole of the epicycloid planet gear. When the driveshaft rotates, the driveshaft eccentric engages the epicycloid planet gear against the stationary ring gear and causes the epicycloid planet gear to rotate. A cam follower pin attached to an output device is held, via a follower roller ball against a cam track of the epicycloid planet gear. As the epicycloid planet gear rotates, the recessed cam track depth causes the cam follower pin to move up or down thereby moving the output device.

主权项

1. An epicycloid planet gear cam comprising:
an internal stationary ring gear comprising a plurality of ring gear lobes and a plurality of ring gear lobe clearances disposed between the plurality of ring gear lobes; and a cam follower pin; an epicycloid planet gear disposed in the internal stationary ring gear comprising a plurality of cycloid lobes and a plurality of cycloid lobe clearances disposed between the plurality of cycloid lobes;
wherein, the plurality of cycloid lobes and the plurality of cycloid lobe clearance engage with the plurality of ring gear lobes and the plurality of ring gear lobe clearances;an eccentric mounting hole disposed in the epicycloid planet gear; anda cam track disposed in a top surface of the epicycloid planet gear, the cam follower pin contacting the cam track, the cam track comprising a recessed pattern around the epicycloid planet gear that gradually increases or decreases in depth beneath the top surface of the epicycloid planet gear;wherein, as the epicycloid planet gear rotates, the cam track causes the cam follower pin to move in relation to variances in depth of the cam track; a driveshaft eccentric comprising:
an epicycloid planet gear eccentric driver, the epicycloid planet gear eccentric driver rotating freely in the eccentric mounting hole; anda lower stem connected to the epicycloid planet gear eccentric driver for connecting to a driveshaft.