Thinking about making a winch...

[Ace]

Just starting on the design phase. 1st draft shown below...

I'm thinking of hobbing out the worm gears on my lathe. This will help keep the cost down, as a set of worm gears alone are about $20.

I'd like to come up with a free-wheel mechanism. I'm thinking a simple plunger that stabs the drum shaft. Or maybe sliding the drum over on it's shaft to engage/disengage the drive.

What do you think of the pic? VERY rought draft so comment away...

Motor is something I picked up at radioshack, we'll see if it has enough poop or not.

 

[SR5Dave]

That looks like a great design Ace, plenty of reduction, I think any motor would handle that with a healthy worm gear reduction

Definetely a KISS design

 

[mike]

i dought it ill have enouph power

 

[Ace]

Mike, care to add anything constructive? Why don't you think it will work?

Whats wrong with it?

 

[JasonInAugusta]

Looks good.

One of the guys on CT posted a winch made from the motor of some train accessory...won't say what it came from, though.

 

[AdamF]

Looks cool! I bet you could sell quite a few if you wanted! I'd buy one!

 

[rockraper]

i would buy one too~!!! you could run something like a GD-600 on it for a better reduction. let me know if you produce them and i will buy one

 

[mike]

ok, iv tryed this before not exactly the same but useing the same idea. i had to have twice the reduction of the one pictured to get it to have enouph power to pull out a wedged crawler. plus it was to big and bulky to make it look cleen on the truck.

 

[mike]

oh and unless tou have the worm gear on there secerly it will just slide off the pinion under load.

 

[BENDER]

oh and unless tou have the worm gear on there secerly it will just slide off the pinion under load.

All you have to do is scallop shaft, w/ grinder, for set screw and it's not going anywhere.

Looks sick Ace, I can't what to see results.

 

[yoda316]

what about one of these http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXVY65&P=0
would that work or would not have enough power

 

[SR5Dave]

i dought it ill have enouph power

Nice typing...

I think a 20:1 worm gear reduction would pull anything!

 

[mike]

were does it say its going to be 20:1.

 

[SR5Dave]

were does it say its going to be 20:1.

It doesn't, but I think Ace is smart enough to give it enough reduction so it'll work.

 

[Ace]

If I use a 20 pitch worm gear and about a 1" worm wheel It'll be about 62:1 ratio.

So, using a 3/4" spool with about 8,000 rpm motor it gives around 300 in/min line speed or about 1/4mph.

I don't think it'll have much problem pulling out my 10 pound rig.

 

[BultacoJim]

I'd like to come up with a free-wheel mechanism. I'm thinking a simple plunger that stabs the drum shaft. Or maybe sliding the drum over on it's shaft to engage/disengage the drive.

Ace,

I need to dig into my parts bin, but I may have an old Teletype clutch mechanism that you may be able to incorporate into your design. It looks like an old brake drum with two little shoes inside that act like brake shoes. It is about two inches in diameter and maybe about .250 wide. It’s all mechanical. If you’re interested, I’ll mike it and post some pictures of it. If you want it, I’ll beam it to ya. :lol:

 

[SR5Dave]

If I use a 20 pitch worm gear and about a 1" worm wheel It'll be about 62:1 ratio.

So, using a 3/4" spool with about 8,000 rpm motor it gives around 300 in/min line speed or about 1/4mph.

I don't think it'll have much problem pulling out my 10 pound rig.

Damn! At'll do,

 

[madste]

winch

I used a servo hitec 645 and shoved the red leed directly onto my 7.2 pack yes they still work at that voltage and it pull about 11 lbs on a single line pull ,take the line back to the truck and you can pull more .

 

[mike]

it will be able to pull the 10 pound truck, but will it pull it wedged in a crack

 

[Ace]

Jim, yeah toss me a pic or a drawing that would be great.

As far as it being able to pull out of a wedged rock, well I guess I could envision a rock wedge that no winch could pull out of, including a real Warn!

If that happens, I'll guess I'd go to plan B and pull it out with my hand. :roll: