Posted by T_Bone on December 18, 2008 at 11:29:59 from (4.254.166.121):
In Reply to: Gantry crane posted by robertmn on December 17, 2008 at 20:33:51:
Hi Bob,
Your design calls for a ZERO deflection on the I-beam at maximum load weight. Any deflection of the I-beam would allow for too much side loading of the vertical supports that will cause the vertical supports too kick out at the bottom.
Just guessing but it appears to be a 12ft span on a 6" I-beam? That's not very much load weight. Your existing chain fall load rating will far exceed your structural design load rating.
Then there's a design problem at the I-beam too vertical tube support connection. The I-beam should have been placed on "top" of the vertical supports and not on the side.
Be careful here as I would like too see your threads next year on your completed projects.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Restoration Story: 1951 Farmall H - by The Red (John Fritz). I have been a collector of Farmall tractors since 1990 when I first obtained part of the family farm in Eastern Indiana. My current collection includes a 1938 F20, 1945 H, 1946 H, and the recently purchased 1951 H. This article will focus on what I encountered and what I did to bring the 1951 NEAR DEATH Farmall H back to life.
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.