Page 559 - Dynamics of Mechanical Systems

0593_C16_fm Page 540 Tuesday, May 7, 2002 7:06 AM

540 Dynamics of Mechanical Systems

Follower

Cam

Follower
Cam

FIGURE 16.1.1 FIGURE 16.1.2
A simple cam–follower pair. A translation to translation cam–follower pair.

Follower

FIGURE 16.1.3 Driver
A gear pair.

16.2 A Survey of Cam Pair Types
As noted earlier, the objective of a cam–follower pair is to transform one kind of motion
into another kind of motion. As such, cam-pairs are kinematic devices. When, in addition
to transforming and transmitting motion, cam-pairs are used to transmit forces, they are
called transmission devices.
There are many ways to transform one kind of motion into another kind of motion.
Indeed, the variety of cam–follower pair designs is limited only by one’s imagination. In
addition to those depicted in Figures 16.1.1, 16.1.2, and 16.1.3, Figures 16.2.1, 16.2.2, and
16.2.3 depict other common types of cams. Figures 16.2.4 and 16.2.5 depict various common

Rotation

Cam Follower
Cam Follower Track

Cam
Cam Follower Track
Rotation Cam Follower

FIGURE 16.2.1 FIGURE 16.2.2
Cam–follower with cam–follower track. Cylindrical cam with cam–follower track.