Gear Engagement
Click the figure above to activate the associated
video simulation file.
Software copyright © 2004 by The McGraw-Hill Companies, Inc. All rights reserved.
Info
The white narrow rectangular line represents the pressure line, the common normal of two engaged teeth. The pressure angle of the gears is 20 degrees.
The gear on the left (in dark green) is the driving gear, turning counterclockwise. The contact point starts at the bottom of the pressure line of the simulation, and it moves up along the pressure line in the motion simulation.
In the beginning and the end of the simulation, two pairs of teeth are engaged, indicating that the gear set has a contact ratio greater than one.
This file is the close-up view of the external gear simulation file with the pressure line added.
Source
This Working Model file is adapted from Figure 9.6 on p. 466 in Design of Machinery, 3rd ed. by Norton, R.L., McGraw-Hill, 2004.
Credits
This Working Model file was first developed by Fan (Michael) Mo.