Belt drive – Rockwell Automation Motion Analyzer Software User Manual
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Rockwell Automation Publication MOTION-UM004B-EN-P - October 2012
Chapter 2
Sizing Your System
2.3.1. Belt Drive
A belt drive is a rotary motor coupled to a timing pulley that drives a flexible
toothed belt, with its coupled load, back and forth between two idler pulley
guides.
Figure 132 - Mechanism Type - Belt Drive
Enter the following parameters for belt drive mechanisms, if relevant.
Table 103 - Belt Drive Properties
Parameters
Description
Mechanism Type
From the pull-down menu, choose the mechanism type.
Mechanism Data
(label 1 in
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.
Belt Drive and Application
(1)
(label 2 in
(1) The Driver is the shaft that is driven by the motor through optional gearbox and transmission stages. The Idlers are the rotary
elements driven by the belt. You may enter data for up to three Idler Groups. Check the corresponding box to add a second or third
group of idlers. A graphic is displayed to help visualize the orientation of the additional idler groups and rollers.
Diameter
The diameter of the drive shaft and idler shafts that make contact with
the belt.
Inertia
(2)
(2) Use the
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
Torque loss due to friction at the driver or idler shaft. You can obtain this
value from the supplier or Engineering tables.
No. of
Rollers
The number of rollers for each idler group.
Additional Loads
(label 3 in
Table
Mass
The mass of the linear load table. This mass is affected by gravity if the
inclination in the
is non-zero.
Belt Mass
The mass of the belt. 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.