Ny-Lint Mobile Dragline Conversion

[Mikem]

Looks great !

[Rvjimd]

Man, this thread is worthless without the photos.

Here are a few of them in a video format.

http://youtu.be/h_wDThHiDg4

Jim

[frizzen]

Thank you very much for the montage video!

Do you still have any of the other videos on your youtube account?

[Rvjimd]

Frizz, glad to help out. I think the dragline videos of mine that survived are the new ones of the crawler undercarriage.

Did a bit of work in the shop yesterday, made two pulleys on the lathe and found a fairlead drawing that I'm going to use as an example. We will see how it goes. I'm not sure how I'm going to do it yet? I found an old thread on the die cast forum where 9W milled the one on the 9W from a solid block.

I was looking at it yesterday thinking maybe making it in two or three parts and bolting it together. I would like to keep the easy conversion from drag to clam if I can.



Pulleys to check size/scale.



Jim

[Rvjimd]

Question:

Since this thing sort of floats and is able to pivot, should the final rollers be positioned a bit off center high so that the rope would tend to keep the final rollers vertical? In the drawing it looks like it is on center.

Jim

[9W Monighan]

Originally Posted by Rvjimd

Question:

Since this thing sort of floats and is able to pivot, should the final rollers be positioned a bit off center high so that the rope would tend to keep the final rollers vertical? In the drawing it looks like it is on center.

Jim

My question is the same Jim. But, if you think about it, when the cable dips down or up it goes off center pulling on the wheels rather than the rollers.
Watch some of Bennett Shovels Lima 2400 videos. That machine has the same type as this B-E one. I think the reason for this type is because on these smaller machines the drag cable is whipping around way more than the giant dragline's ropes. Translating into more wear so the load is transferred into both sheaves. The large machines have more space to put larger diameter sheaves on turning slower lasting longer.

[frizzen]

Thanks i only saw it on the truck in a couple videos in a garage with a dirt pile. Killer looking crane.

That's a really slick roller fairlead. I would make a T plate adapter to mount that off the front so 3 fasteners or 2 fasteners and lifting a hook off a lip let you pull it to convert to clam.

I don't think it would need to be offset above or below much since it looks like the larger sheaves are close enough the cable is captive between their edges. How much float do you think it'd take to keep the line smoothly filling the winch drums instead of bunching up?