Rockwell Automation Motion Analyzer Software - Manual (Page 182)

182 Rockwell Automation Publication MOTION-UM004B-EN-P - October 2012
Chapter 2 Sizing Your System
2.3.3. Chain and Sprocket
A chain and sprocket is a rotary motor coupled to a sprocket wheel that drives a
linked chain, with its coupled load, back and forth between idler sprocket guides.
Figure 134 - Chain and Sprocket Dialog Box
Enter the following parameters for chain and sprocket mechanisms, if relevant.
Table 105 - Chain and Sprocket Properties
Parameters Description
Mechanism Type From the pull-down menu, choose the mechanism type.
Mechanism Data
(label 1 in
Figure 134 )
The Load, Stroke, Speed, and Acceleration values are calculated based on the parameters
entered in the previous Load and Profile tabs and displayed here for reference.
Chain and Sprocket
Application
(label 2 in
Figure 134 )
PCD
Pitch Circle Diameter. This can be calculated by multiplying the link pitch
by the number of teeth on the sprocket and dividing by pi.
Inertia (1)
(1) Use the Inertia Calculator Template on page 105 to calculate the inertia value for your application, if the value is not readily
available.
The inertia of the driver and idler groups.
Friction
Torque The torque loss due to friction at the driver or idler shaft. This value can be
obtained from the supplier or Engineering tables.
No. of
Sprockets
The number of sprockets for each idler group.
Additional Loads
(label 3 in
Figure 134 )
Table Mass
The mass of the linear load table. This mass is affected by gravity if the
inclination in the
Load Type Tab on page 82 is non-zero.
Chain Mass The mass of the chain. This mass is not affected by gravity.
Losses
The total torque loss due to friction at the driver and the idler groups is
calculated and displayed here.