Oilfield "Pumpjack" model plans

[Brian Rupnow]

One final bit of information, for anyone who considers building a pumpjack, using the gears which I specified. The "optimum" center to center distance for the two small pinion gears seems to be 0.355". The center to center distance on the large 72 tooth gear and the small pinion gear driving it is 1.317", and the overall ratio from the steam engine driving to the counterweight shaft works out to about 18.5:1----Brian

 

[goodyerie]

Read this many times and decided to do this. Here is the link to my video.
Thanks

Goody

http://madmodder.net/index.php?topic=6100.0

 

[tontam]

Brian:
I was looking for drawings to do for my business website for show and this is beyond perfect!!!! Outstanding work!! I am a mechanical designer and need something to put on my site that is not proprietary. I hope you do not mind. I also will take it an extra step and creat a video of this in simulation mode. Please check my site and contact me if you wish. Thanks!
http://www.ascmechanicaldesignservice.com

 

[Brian Rupnow]

Tontam--You are welcome to it. Thats why I post my plans, or links to them, so people like you can use them.---Brian