Drive mechanism demonstrates teaching aid

The utility model discloses a drive mechanism demonstrates teaching aid, the cam mechanism who includes the support and install on the support demonstrates the part, and link mechanism demonstration subtotal gear demonstrates the part, the partial frame that includes of cam mechanism demonstration, and cam and follower, cam and follower all set up in the frame outside, and the cam passes through the camshaft to be connected with the frame rotation, is fixed with the handle on the cam, and the frame is fixed on the support, link mechanism demonstration part is including the rocker, the connecting rod, and pivot and first bevel gear, pivot one end and rotate bracket connection, the pivot other end rotate with rocker one end and are connected, and the rocker other end is articulated with connecting rod one end, and the connecting rod other end is articulated with first bevel gear, and first bevel gear passes through first gear shaft and rotate bracket connection, first bevel gear and installing at the epaxial deuteropyramid gear engagement of cam, the deuteropyramid gear lies in the frame inboard the utility model discloses can be vivid, specifically, the motion of the direct multiple mechanism of demonstration, the student understands very easily, and the quality of instruction is high