Question

Para el mecanismo del tipo leva-seguidor en la figura, el programa de movimiento es como sigue: • LOW DWELL (Descanso o detención) durante 45° Elevación 5 mm en 135° • HIGH DWELL (Descanso o detencion) durante 45° • Caida o descenso 5 mm en 135° Si el radio base es 21 mm, cuanto es L2 en mm si 02=221 grados? L3 YA 03 0 02 L2

For the cam-follower type mechanism in the figure, the movement program is as follows:

LOW DWELL (Rest or Stop) for 45 °

Elevation 5mm at 135 °

HIGH DWELL (rest or stop) for 45 °

Drop or drop 5mm by 135 °

If the base radius is 21 mm, how much is L2 in mm if θ2 = 221 degrees?

Answer 1

By analyzing the follower motion at various given Cam rotation angle we can easily find L2 as shown below :

PAGE: Solution : Given i 5 mm low dwell Cert or stop) for 450 Elevatich at 135° high dwell Crest or stop) for us drop 13.50 base sadius W 5 00 by that for from the given data it is clear the initial 45 datation of cam. does not fire. follower 5mm. for next means 1350 at xotation follower sises by h5*+135= 100; L (x+5) now cam follower Now for next 45° solation of does not move / lift again Lence her from = I do to o= (do tus = 225° follower remains at L = (Cr+ 5)mm. that at o= clearly say 2210 12= 8+5 21+ 5 = L2=