Chief Delphi

Chief Delphi (http://www.chiefdelphi.com/forums/index.php)
-   Extra Discussion (http://www.chiefdelphi.com/forums/forumdisplay.php?f=68)
-   -   pic: Drivetrain Side View (http://www.chiefdelphi.com/forums/showthread.php?t=50768)

AustinSchuh 27-12-2006 23:54

pic: Drivetrain Side View
 

Rafi Ahmed 27-12-2006 23:55

Re: pic: Drivetrain Side View
 
Looks like it is inspired from the 254/60/22 drive train.

Why couldn't the wheel be only two pieces by incorperating the hub into the wheel itself?

Travis Covington 27-12-2006 23:58

Re: pic: Drivetrain Side View
 
I love the button head screw to tension the chain. Nice touch.

amos229 28-12-2006 00:41

Re: pic: Drivetrain Side View
 
Just a few thoughts as 229 had a drive similar to this for triple play. Are you using a solid chain linking all the wheels together. We decided that we should use 2 chains one mid wheel to front wheel and one mid wheel to back wheel. in case one breaks you still have 2 wheels driving. Also if you use this in a game try to keep the robot balanced front to back otherwise you ed up with massive tread wear. But other than that great design, good luck in '07'

AustinSchuh 28-12-2006 01:33

Re: pic: Drivetrain Side View
 
I modeled the drive train off of ideas behind of 254's drive train, and 968's tensioner.
Quote:

Why couldn't the wheel be only two pieces by incorporating the hub into the wheel itself?
I designed the wheel so that it could be swapped out easily. All we have to do is to remove the six bolts, and the wheel is free to be swapped out. Also, one of our sponsors is a sheet metal manufacturer. They can easily cut out the 5 pieces of sheet metal that make up the wheel. The wheel has an 1/8 th inch thick rim, a 1/4 inch thick spoked section, two 1/4 inch body sections, and another 1/8 th thick rim. They would then spot weld these together in that order to make the wheel. By incorporating the hub into the wheel, we would have to start with a larger block of aluminum and wouldn't be able to make the wheel out of sheet metal.

Quote:

We decided that we should use 2 chains one mid wheel to front wheel and one mid wheel to back wheel. in case one breaks you still have 2 wheels driving.
I am doing the same thing. You can see the two sprockets on the main drive shaft in the other picture that I posted. Thanks for the advice on tread wear

Here is a render of our tensioning device. Once again, it is made out of sheet metal.

Nuttyman54 28-12-2006 02:39

Re: pic: Drivetrain Side View
 
Are the wheels being held on the shaft only by the clips, or is there something I'm missing?

AdamHeard 28-12-2006 03:19

Re: pic: Drivetrain Side View
 
Quote:

Originally Posted by Nuttyman54 (Post 545745)
Are the wheels being held on the shaft only by the clips, or is there something I'm missing?

It looks like snaprings. Those do a great job, I know 968 (and 254 as well?) used them this year. We also had all six of our wheels held on with snaprings and never popped one.

Rafi Ahmed 28-12-2006 03:20

Re: pic: Drivetrain Side View
 
Quote:

Originally Posted by Nuttyman54 (Post 545745)
Are the wheels being held on the shaft only by the clips, or is there something I'm missing?

It seems like it. The clips would be enough to keep on the wheels. 254, 60, 22, 968, 980, and 4 (thats all i can remember) used only clips and they work just fine

Nuttyman54 28-12-2006 03:27

Re: pic: Drivetrain Side View
 
Quote:

Originally Posted by raf4far (Post 545748)
It seems like it. The clips would be enough to keep on the wheels. 254, 60, 22, 968, 980, and 4 (thats all i can remember) used only clips and they work just fine

well then, I'm convinced. I've never used them, so I wasn't sure how strong they were.

AustinSchuh 28-12-2006 13:02

Re: pic: Drivetrain Side View
 
Quote:

It looks like snaprings.
Yes, those are snap rings. Good call.

Madison 28-12-2006 13:34

Re: pic: Drivetrain Side View
 
Quote:

Originally Posted by AustinSchuh (Post 545736)
I modeled the drive train off of ideas behind of 254's drive train, and 968's tensioner.

Here is a render of our tensioning device. Once again, it is made out of sheet metal.

Can you show a more detailed look at how the tensioner interfaces with the frame? I'm not clear on how it's supported.

I've been working on a similar design that requires as little complex machining as possible, as I'm the person who does all the CNC work on the team and there're few things I dislike more than sitting in front of the machine. The tensioning mechanism is one of the few details remaining, so it's interesting to see how others have decided to implement that detail.

AustinSchuh 28-12-2006 15:17

Re: pic: Drivetrain Side View
 
Here is a picture of how the part that I posted earlier fits into the frame. I moved one of the side plates out of the way so that you can see how the part fits in the frame.


Madison 28-12-2006 17:27

Re: pic: Drivetrain Side View
 
Quote:

Originally Posted by AustinSchuh (Post 545815)
Here is a picture of how the part that I posted earlier fits into the frame. I moved one of the side plates out of the way so that you can see how the part fits in the frame.

Thanks for clearing that up. Are you relying on the tension of the chain to prevent the buttonhead screw and tensioning mechanism from moving outward (left in the picture)?

Also, I like the display style a lot.

AustinSchuh 28-12-2006 17:37

Re: pic: Drivetrain Side View
 
Correct, I am relying on the tension of the chain to prevent the buttonhead screw from moving outward.

Bill_Hancoc 28-12-2006 22:30

Re: pic: Drivetrain Side View
 
that my friend is beautiful...i wish i had the patience to design something like that. Very nicely done.


All times are GMT -5. The time now is 22:24.

Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi