Re: Conveyor Belt Turnower
George,
There is some guidence in the latest DIN 22101.
The standard references some papers by written others.
Regards,
Lyle ■
Re: Conveyor Belt Turnower
Dear George,
I understand you are using BELTSTAT. Does your version have the Belt Turnover analysis section? I believe it does.
If it does, do you know how to use it? If not, please contact CDI for assistance. BELTSTAT does the full analysis of the helix stresses, sag and bending stresses in the belt, with a more comprehensive analysis than found in any standard. ■
Belt Turn-Over
Lyle, Nordel,
Thank you for the reply.
Yes, the company has Prof version of the software Beltstat v7 but I would like to fully understand what is happening there and have mathematical formulae for that situation. I have also looked at the User Manual of the software, but I believe this is written for the user of the software to get the result, rather than somebody wanting to do that exercise manualy. Lets say that I was given a task to create a spread sheet to explain, how it works.
Thank you in advance. ■
Re: Conveyor Belt Turnower
The manual excercise would take you a very long time. The differential equation solution is not closed form and is non-linear. Thus, a method of solving a non-linear differential equation system must be applied such as Rugga-Kutta.
You must know what boundary conditions to apply and how to solve for the unknown variables in a systematic manner.
The algorithm details have not been published.
The methods in BELTSTAT are more comprehensive and more accurate than any standard. ■
Re: Conveyor Belt Turnower
Thanks Nordell,
I have no doubt about what you are saying here. Also it seems like I am asking something that takes a lot of time to develop and I understand that anybody might be a little resistant to give it away just like that. What my task is howewer, is to understand exactly what is happening at belt turn-over, get all the formulae needed and be able to explain to others, all complexity about the issue. Now, I could use help of people on this forum, otherwise I have to keep looking. I am in no mode to compete in anything with anybody. I was given a task that I am trying to complete.
Thank you for your time.
P.S. Are you in the country at the moment? Would be delighted to meet you.. ■
Belt Turovers
You may find some information in a paper published by Ryan Lemmon (now of AC-Tek) at one of teh SME conferences - teh title is " Local Stress in Belt Turnovers in Conveyor Belts" ■
Re: Conveyor Belt Turnower
adi,
Thank you for your time and your help. Some of us are in it for the pure fun...
George ■
Re: Conveyor Belt Turnower
We're all in it for the fun.
It might not be rocket science but it beats the hell out of working for a living.
Along with Adi's advice I would suggest you approach the belt manufacturers. If you hit the right spot they are most helpful. Apart from actually making the things, always a good point, they also see the cock-ups when they are asked to supply replacement belting etc etc. Good luck & let us know how you get on. ■
John Gateley johngateley@hotmail.com www.the-credible-bulk.com
Conveyor Belt Turnower
Dear Sir,
I am seeking information on long overland conveyor belt turn-over design and calculations. I understand the portion of having bend pulleys to gradually turn the belt 180 deg, but how do we calculate the optimal length of transfer and check the belt for stress and sag? Where do I find formulae for calculating above? Your help will be greatly appreciated.
Thank you very much in advance.
Kind Regards
George Chmelik
Mechanical Engineer - Design
Tarong Transport Alliance
AMP Place
Level 14, 10 Eagle Street
BRISBANE QLD 4000
Australia ■