Plant Services - May 2008 - (Page 50) Power transmission Reliability The choices Important pieces Type A Type B Figure 1a. Double-pitch roller conveyor chain with small rollers (B29.4) Top Center Type D (Extended pin) Type E Type F 120 110 Pump curve 100 90 80 Figure 1b. Steel-bushed rollerless chain (B29.12) 70 60 50 40 30 20 System curve 10 0 2000 4000 6000 8000 10000 12000 Head (feet) Volumetric ow rate (gal/min) Type G Type H Type K Type M Type R Type RR Figure 1c. Double-pitch roller conveyor chain with large rollers (B29.4) Type S High sidebar Figure 1d. Steel roller-type conveyor chain (B29.15) Figure 2. Typical conveyor chain attachments. (The American Chain Association) solvent or fuel oil. Clean the chain with stationary or rotating brushes just before it passes an automatic oiler. Ask lubrication equipment suppliers for help in selecting a good system for your application. Inspect and correct The most important part of conveyor chain maintenance is inspection and correction. The goal is to find and correct problems before the conveyor breaks down. ManufacturJohn L. Wright is a technical consultant specializing in chain techers’ bulletins and the “Standard Handbook of Chains” have nology who lives in Indianapolis. Contact him at jcwright2@sbc checklists for doing this. It’s up to maintenance personnel to global.net and (317) 783-2636. consider the available resources and use them consistently. The main reason for planned maintenance is to verify the chain is getting proper lubrication. If it’s manual lubrication, More resources at www.PlantServices.com carefully clean the tracks and chain and apply suitable grease or oil. If automatic, clean the chain and tracks and make sure the Metal belts – “Metal belts provide a competitive edge” automatic oiler is operating as it should. Check and, if needed, Conflict in guarding standards – “Guarding power transmission equipment” reset the initial tension, or chain sag. The other is to check and, if needed, reset the track and sprocket alignment. For more, search www.PlantServices.com using the keywords Headline This has been a brief overview of conveyor chain care. alignment, conveyor and sprocket. More information is contained in the reference and in man50 www.PLANTSERVICES.com May 2008 ufacturers’ bulletins. Take advantage of the knowledge and experience that suppliers possess. Many plant professionals find that selecting and properly caring for conveyor chain is the most economical answer. If operating conditions are dirty, wet or corrosive, consider a specialty chain. But, it’s worthwhile to take a hard look at using standard chains first. And then plan to take good care of those chains. http://www.PlantServices.com http://www.PlantServices.com http://www.PLANTSERVICES.com
For optimal viewing of this digital publication, please enable JavaScript and then refresh the page. If you would like to try to load the digital publication without using Flash Player detection, please click here.