Hand crank right angle drive

Question

Hand crank right angle drive

grunt58 (Mechanical)

(OP)

2 Feb 17 18:26

I need to design some adjustable guides that will move on a lead screw with a hand crank. The problem I have is I don't have enough room to come straight out of the lead screw with a hand wheel. I need it to be 90 deg from the lead screw. I can't seem to find a right angle drive for a hand wheel. All I find are for motors which I won't be anywhere near the rpm. Any suggestions on where to source?

Nescius (Mechanical) · Answer 1 · 2017-02-02 18:33:03

RE: Hand crank right angle drive

Nescius (Mechanical) 2 Feb 17 18:33

How about bevel gears?

grunt58 (Mechanical) · Answer 2 · 2017-02-02 18:35:32

Yes I suppose that would work. I was hoping there would be an enclosed off the shelf solution like a electric motor right angle drive.

drawoh (Mechanical) · Answer 3 · 2017-02-02 18:55:36

grunt58,

Bevel gear boxes are out there. How about a low ratio worm drive?

--
JHG

Nescius (Mechanical) · Answer 4 · 2017-02-02 18:56:53

What are your objections to adapting a hand wheel to something that might not usually operate with one?

I am assuming a 1:1 gear ratio. Is this correct? How strong does this mechanism need to be? Are you lifting a truck or lifting a microscope stage?

MadMango (Mechanical) · Answer 5 · 2017-02-02 19:02:27

Worm gear.

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grunt58 (Mechanical) · Answer 6 · 2017-02-02 19:02:53

Guess this is what I'm looking for.

http://files.engineering.com/getfile.aspx?folder=841cad95-6f96-483b-a755-08

grunt58 (Mechanical) · Answer 7 · 2017-02-02 19:19:14

I'm not opposed to adapting I just couldn't find a gear box that wasn't expensive or made to mount to a motor. 1:1 ratio with same direction output. Its for centering a .080 thick sheet coil into the press right before the die. We haven't sized the rollers yet but on similar but much more heavy duty centering guide we have 2 osborn rollers per side with a radial load of 1620 lbs.

Jboggs (Mechanical) · Answer 8 · 2017-02-02 19:31:56

http://www.andymark.com/product-p/am-2622.htm
http://www.wmberg.com/products/assembly/gear-boxes
http://www.pic-design.com/gear-assemblies.html
McMaster.com Right-Angle Gear Boxes

btrueblood (Mechanical) · Answer 9 · 2017-02-02 23:13:07

Sounds like you might want one of these? Handwheel connected worm gear turning an acme nut?

http://www.screw-jack.com/mini-worm-gear-linear-ac...

Same site has miter gear boxes, ie 1:1 ratio too.

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