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Old 08-08-17, 03:59 PM   #11
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Originally Posted by martinpaff View Post
That sounds right.

MP
Thanks Martin
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1929 Ruston-Hornsby 6 AP, 1925 Ruston-Hornsby 5 IP, 50/75V DC General Electric Dynamo.
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Old 08-08-17, 04:48 PM   #12
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https://www.blocklayer.com/pulley-belt.aspx
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Old 08-08-17, 05:34 PM   #13
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I used that calculator when working out the pulley sizes for my WD8 and Pump, it was spot on

Neil.
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Old 08-08-17, 06:07 PM   #14
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Thanks for the link, it will come in handy working out what I will need to drive a car dynamo from my Villiers C12

Stuart.
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Old 08-08-17, 06:47 PM   #15
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I'm sure folks would like to be able to provide more help, but this is another "how long is a piece of string?" Question. You need to give us some idea of what it's for, portable or in a building, run by what, driving what?

I think that generally the line shaft is likely to run slower than the crank, so a pulley bigger than the one on the engine. Then probably smaller pulleys for the driven, but really you are going to have to design this for yourself...

MP
sorry I was a little sketchy on the details. I want a portable workshop display for my hartop h type.

I have a mechanical hacksaw, flat belt driven drill and a belt driven grinder.

I was after some ideas on lineshaft size because if its too small I might have trouble finding pulleys to fit.

so any rough ideas are of great help
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Old 08-08-17, 07:01 PM   #16
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That one's good Rob, it tells you the belt length as well. I've been trying to work all this out in my head !
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Old 08-08-17, 07:23 PM   #17
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Originally Posted by listerman2011 View Post
sorry I was a little sketchy on the details. I want a portable workshop display for my hartop h type.

I have a mechanical hacksaw, flat belt driven drill and a belt driven grinder.

I was after some ideas on lineshaft size because if its too small I might have trouble finding pulleys to fit.

so any rough ideas are of great help
Ah... The Hartop isn't monstrously powerful at about 1hp, so will need gearing down a bit. I would look for a driven pulley about 3 times the engine pulley size. If you want to use flat belts then probably best to aim for imperial sizes, but to get exactly what you want I would guess some machining may be involved. I think I would use 1" shaft and pillow blocks and make the pulleys fit. For driving the tools I would look for pulleys around 4 or 5" diameter.

MP
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Old 08-08-17, 07:42 PM   #18
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Quote:
Originally Posted by martinpaff View Post
Ah... The Hartop isn't monstrously powerful at about 1hp, so will need gearing down a bit. I would look for a driven pulley about 3 times the engine pulley size. If you want to use flat belts then probably best to aim for imperial sizes, but to get exactly what you want I would guess some machining may be involved. I think I would use 1" shaft and pillow blocks and make the pulleys fit. For driving the tools I would look for pulleys around 4 or 5" diameter.

MP
thanks martin thanks brilliant, yes it isn't greatly powerful but with plenty of oil/grease on bearings it should run smoothly

thanks again
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Old 08-08-17, 07:58 PM   #19
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(snip) sorry I was a little sketchy on the details. I want a portable workshop display for my hartop h type.
Nice example here:-

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GlosVin17R050 by Robert Starr, on Flickr

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Old 19-08-17, 07:22 AM   #20
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Default Jumping in with a question

Is there a preferred rpm for the line shaft?
The reason is that I'm in the beginning stages of planning a off grid woodshop where the machines are to run from a line shaft all driven by my Lister LD2.
The engine pulls from the camshaft with 750 rpm and as I need 720, 1440 and 2880 rpm on the machines ( the speed of the electric motors on them) I would like to have the line shaft running at 720-750rpm but are that to fast?

Jesper
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