Chief Delphi - Chain Tensioning

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Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- Technical Discussion (http://www.chiefdelphi.com/forums/forumdisplay.php?f=22)

- - Chain Tensioning (http://www.chiefdelphi.com/forums/showthread.php?t=84937)

NyCityKId

08-04-2010 10:30

Re: Chain Tensioning

Quote:

Originally Posted by dodar (Post 949936)

Our team just slotted our wheels and then on each side of the wheel's axle we put small cams and then just turned them till the chain was tight, then we tighted down countersunk screws into them to keep them in place

Do you have any pictures of this? i cant visualize this.

Alan Anderson

08-04-2010 11:05

Re: Chain Tensioning

Quote:

Originally Posted by dodar (Post 949936)

Our team just slotted our wheels...

Like Andre, I can't visualize how slotted wheels would work. I think you mean you used slots in your frame through which you mounted your axles, right?

dodar

08-04-2010 11:09

Re: Chain Tensioning

Sorry, yes that is what I meant.
We cut slots into our frame and then placed our wheels in

Rion Atkinson

08-04-2010 11:43

Re: Chain Tensioning

Quote:

Originally Posted by dodar (Post 949936)

I'm seen this done before. It really is a good idea. You typically see it on WCD chassis though don't you? And, at the moment; my team only has hand drills and a drill press. No mill in which to do slotting on.

CraigHickman

08-04-2010 11:58

Re: Chain Tensioning

Quote:

Originally Posted by Dick Linn (Post 949931)

Team 975 once used an old skateboard wheel for a tensioner/idler. A groove was turned in the tire to prevent lateral movement.

I really dig this idea for a quick fix! But I suppose I'm biased *points to 14x24x24 box of skate wheels next to the door*.

NyCityKId

09-04-2010 02:19

Re: Chain Tensioning

Okay, I get it now.

angelawence11

09-04-2010 21:27

Re: Chain Tensioning

lol sorry. By better way, i mean for what we were making it for. the chain for our gear box wasnt very long, and the cim was mounted pretty close. basically, we ended up with slits on one side and holes for bolts on the other. we could slide it in easily and bolt it down. before we realized this, though, we were going to do that. actually, im pretty sure it was sent to me with the caption "genius tensioner design" :)
Really, i think that the method of tensioning is gonna vary based on the situation. For ours, we would have liked to do this, but when we followed the KISS method we figured this might be better

Racer26

09-04-2010 22:05

Re: Chain Tensioning

I'm a big fan of the put the holes in the right spot method of chain tensioning. It does however get more complicated with weird chain runs like we had on our 2010 bot in Waterloo.

Bruce Newendorp

10-04-2010 09:29

Re: Chain Tensioning

525 has used the Fenner Drives composite idler (Mfr #: CS3502) for many years. It is lightweight and has a high quality bearing. It's available from MSC Direct.
http://www1.mscdirect.com/CGI/GSDRVS...00000134143903

AustinSchuh

10-04-2010 23:23

Re: Chain Tensioning

Hmm. I'm getting a bad link from the post above me for the idler...

R.C.	10-04-2010 23:44

Re: Chain Tensioning

Quote:

Originally Posted by AustinSchuh (Post 951971)

Hmm. I'm getting a bad link from the post above me for the idler...

Austin,

Just copy and paste the part number at the top, I had the same issue.

-RC

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