Re: Locating C.g Of Grizzly Feeder
Greetings Sheev,
I do not see anything wrong with the C of G falling inside the basket of a linear motion feeder, and don't understand why you should want it below.
The important thing is that a line passing through your unbalanced exciters (at the angle of action - I presume say 30 degrees?) should pass through the C of G of the feeder, or slightly towards the discharge end - by perhaps 20 to 50mm for a 2500 long feeder. ■
Re: Locating C.g Of Grizzly Feeder
hello JOHN
GREETINGS
I AM PLANNING WITH DRIVE AND BEARING ARRANGEMENT LIKE WHAT WE FOLLOW IN SCREENS
THEN SHAFT AND BEARING SHOULD LOCATE AT C OF G OF THE TOTAL BASKET NO??
I WILL SEND SOME OTHER DETAILS TO YOUR MAIL IF REQUIRED.
KEEP SMILING
YOURS ■
Re: Locating C.g Of Grizzly Feeder
Hi Sheev
Perhaps I am misunderstanding the problem ( I was assuming a linear motion feeder).
If you like to email a sketch or drawing, I would be happy to comment. ■
Is C Of G Is Must???? In Grizzly Feeders
HELLO JOHN
I HAVE ATTACHED A COPY OF A DRAWING TO YOUR MAIL ID
PLEASE HAVE THE ATTACHMENT.
I CALCULATED C.G LIKE I DID IN MY SCREEN BUT IT IS FOULING WITH GRIZZLY BARS. BRG ARRANGEMENT BELOW GRIZZLY BARS (I THINK) IT IS NOT SUGGESTABLE...
I AM DOING AGAIN BY INCREASING MY DECK SIZE RIGHT NOW IT IS 2500(L)X500(H) MM
I AM DOING GROUND WORK IN THIS REGARD PLEASE HELP & GUIDE ME
KEEP SMILING
YOURS ■
C.g
Hi Siva,
The C.G point location of various equipments vary for different shapes of equipment bodies.
However it is more of importance to locate the c.g point through which the actual force is to be transmitted for the equipment to vibrate as in your case.
I hope this clears your query.
Arvind kumar. ■
Centre Of Gravity On Brute Force Grizzly Feeders
Hi Sheev: I am not smart enough technically to answer but, I did take the liberty of asking a mechanical engineer friend of mine who has been designing these for about 35 years.
He says he: Takes the weight of all component parts, ie deck members and various parts and calculates the centre of each and then the total centre of mass.
Once the total centre of mass is calculated, he strikes a line down thru it and if it falls on the line it is okay.
Also added.......if you change the timing, like lay it more flat, to speed the material travel up......you should always move the head to re-establish the proper c g of the unit. He typically puts extra holes in sideplate at 6" centres to allow adjustment.
NOTE: I am talking about a brute force feeder, a heavy duty basket with a PAN followed by a GRIZZLY BAR section typically 3,4,5,6 feet long which has a GEAR MOUNTED DRIVE attached to the underside with a timing angle of typically 45 deg achieved by engaging the two gears on the gearset.
I will attach a typical pic for you on the device I am speaking about for review.
HOPING this is helpful...........Keep the questions coming.....
George
Attachments
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Re: Locating C.g Of Grizzly Feeder
I know that this is an old post but I wanted to add my two cents to it. We are planning on modifying the drive on a feeder, and we need to find the center of gravity. If you have access to an overhead crane or even a forklift you should be able to hang the feeder from a strap/chain. You could move the strap around on the feeder until it is balanced indicating the CG. This takes all of the calculations and guesswork out of it.
Rob Brooker
Conveyor Services Inc.
Covington, KY ■
Locating C.g Of Grizzly Feeder
HELLO TO FORUM
"SEASONAL GRETINGS" TO THE FORUM MEMBERS
I AM VERY MUCH THANKFULL TO THE FORUM HELP REGARDING MY VIBRATING SCREEN PROBLEMS SPECIALLY THANKS TO GOERGE & JOHN FOR HELPING ME
RECENTLY I STARTED WORKING ON GRIZZLY FEEDER(1000X2500mm) BUT I AM UNABLE TO LOCATE ITS C.G. AS PER MY CALCULATIONS C.G IS ON BASKET BUT IT REQUIRES BELOW THE BASKET. IS THERE ANY STANDARD PRACTISE FOR LOCATING THE C.G IN GRIZZLY FEEDER I WOULD LIKE TO KNOW ABOUT IF IT IS
THIS FEEDER IS FEED +300 TO -75 MM PRODUCT CAPACITY 75TPH
PLEASE GUIDE ME
WITH WARM REGARDS
YOURS ■