The influence of the radius of the base circle on the cam mechanism
Increasing the influence of the cam base circle radius on the mechanism work
Advantages:
(1) Reduce the pressure angle of the cam mechanism, improve the force transmission performance, avoid self-locking, and improve the efficiency of the mechanism.
(2) Reducing the lateral force of the follower is beneficial to improve the life of the guide rail.
(3) Increasing the radius of curvature of the convex contour line helps to avoid interference, and the contact stress can also be reduced.
Adverse aspects:
(1) Increase the size and weight of the mechanism.
(2) The circumference of the cam profile is increased, which increases the machining amount and processing difficulty of the cam.
(3) The surface speed of the cam increases, which aggravates the machining error on the cam.
The impact of institutional work characteristics.
When designing the cam mechanism, under the condition that the mechanism is working normally, it is desirable that the radius of the cam base circle is as small as possible.