kerr54
Local Delivery Truck Driver
Posts: 189
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Post by kerr54 on Jan 10, 2012 20:21:36 GMT -5
Hello Guys, I read your comments and I agree, this thing is mine and I am proud of it as it is and even though I don't have the fancy tools I do enjoy cutting out and shaping each tiny piece to where it fits like I want it by hand. I enjoy it so much. But someone had told me that I need to make a device to wind the drums after it is assembled so as to take up some slack or to let out some slack on the cables for like when I raise or stow the boom. I think it's a good idea and I have not thought of that so I need to think of a way to do that now before I close up this part. But thanks guys for your comments and I enjoy your conversation. Kerry
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okdoky
Local Delivery Truck Driver
Keep your knives sharp and your glue lids on
Posts: 365
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Post by okdoky on Jan 10, 2012 21:06:01 GMT -5
Hi Kerry
Is there scope for adding a rubber tire from a diecast model car in direct contact with the drums but hidden by your bodywork, but with a detachable alan key for winding the tire to pay out or pay in the rope to the drums.
Maybe you could find a bolt for a hub with an alan key head that is small enough diameter to be inconspicuous on the sides of the bodywork but with a tire big enough inside that would not take you ages to adjust the ropes.
If the bolts are placed one on each side and linked by a mounted tube for additional support through the bodywork, the tires can get good purchase on the drums and not wobble when winding.
Probably as clear as mud, but maybe an idea?
Good luck
Nige
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kerr54
Local Delivery Truck Driver
Posts: 189
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Post by kerr54 on Jan 10, 2012 21:17:26 GMT -5
Hey Nige, that's a heck of an idea, I will study your suggestion and figure that one out. It sounds like a very good idea, just need to work out how it works. Thanks so much Nige. Kerry
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41chevy
CDL Student Driver
MY B-61
Posts: 743
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Post by 41chevy on Jan 11, 2012 13:08:35 GMT -5
Instead of a tire try using rubber "O" rings. A lot less space and much more discrete. Paul
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kerr54
Local Delivery Truck Driver
Posts: 189
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Post by kerr54 on Jan 11, 2012 20:00:18 GMT -5
Hey Guys I thought of an idea today at work and I am going to look around alittle and see what I can find parts wise, before I let you in on my idea. If I can find the parts, it should be kinda cool. Kerry
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kerr54
Local Delivery Truck Driver
Posts: 189
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Post by kerr54 on Jan 12, 2012 5:32:00 GMT -5
One questions guys, what drum controls the cables we talk about? Only one or both.
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Post by gatormarcstaug on Jan 12, 2012 11:46:18 GMT -5
Kerry, Each of the drums are usually independent of each other. The rearmost drum is most often used for the boom, and is routed through the gantry. Some cranes have a double drum for this and the both ends of boom cable is locked into the drums, which turn in unison. I like that system as opposed to the boom cable having one end dead ended on the gantry. The other drums, One will be the main hoist line and most often has a power down feature as well as free fall. A second and third drum can also be used for hoisting and may or may not have power down. Hope this helps, I might not have all my terminology right, but this is the basic concept, as well as I can explain it.
Be Well Gator
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kerr54
Local Delivery Truck Driver
Posts: 189
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Post by kerr54 on Jan 12, 2012 19:38:29 GMT -5
Okay thanks Gator, that really helps so much.
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kerr54
Local Delivery Truck Driver
Posts: 189
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Post by kerr54 on Jan 15, 2012 12:46:16 GMT -5
Okay Guys, Another update and it is coming along. Although I am beginning to think that this thing is bigger than I thought it would be. Really cool though. Anyways in these photos I begin with adding some supports for the cab and the other pieces. In this photo you can just see the gear that is on one of the drum shaft that will turn the drum and take up or let out the cable as needed. Second photo is of the set-up where the motor will sit. More of this will come when I get it a little farther along. Next I started shaping up the main body and getting a feel of how it is going to work out. Keep in mind that there is a ton of clean-up and details that still have to be done. Okay now to see what this thing looks like roughly sitting on the frame. Ofcourse I couldn't help but think of what it will look like sitting on my truck. I don't think it is going to fit............. gonna have to extend my trailer I think.... I have a few details to work out such as where the line comes from that feeds the A-frame or Gantry. I'm puzzled over that one but I will find an answer to this problem as I am getting very close to that section of this build. But that's it for now and I will continue to build this thing and see what happens. It just doesn't stop growing......so tell me what you guys think and thanks for looking. Kerry
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okdoky
Local Delivery Truck Driver
Keep your knives sharp and your glue lids on
Posts: 365
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Post by okdoky on Jan 15, 2012 13:54:14 GMT -5
Hi Kerry
A simple fix for the low loader is the usual hinged swing out extensions that have planks added on top to widen the floor. That is some beast of a crane already and I see you managed to mask the crank for tightening the ropes. How are you intending to adjust the rear drum?
Lovely work !!!!!
Nige
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kerr54
Local Delivery Truck Driver
Posts: 189
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Post by kerr54 on Jan 15, 2012 14:34:01 GMT -5
Hey Nige, I have been trying to find out just exactly how these drums work and for me to not have even seen one of these things work before, it is still a mystery. But as I am learning, the drum I have chained operates the actual lifting and such through the boom. Correct me if I am wrong but, the line from the front drum will go directly to the top set of sheaves at the tip of the boom and downward to the load via a block and tackle set-up. Now the back drum " I think" is there to supply the A-Frame or Gantry and I am not sure at all on how the line runs from the drum to the gantry if in fact it feeds the gantry. I am searching the net to try and find that out but it is not easy so far. Any help would be very very much appreciated. But yes, this thing is a brute and I had already made preparations on upgrading my heavy hauler for this load. Extending the sides of the trailer is one of them along with other modifications to both trailer and tractor. Kerry
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Post by gatormarcstaug on Jan 15, 2012 18:17:36 GMT -5
Kerry, You are making some real progress now! I like it. As for the front drum, yes you can run it right up the boom to the tip and over. and you might want to add a couple of single shivs on the top side of the boom as cable guides. Be Well Gator
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kerr54
Local Delivery Truck Driver
Posts: 189
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Post by kerr54 on Jan 15, 2012 18:50:33 GMT -5
Hey Gator, Thanks for the tip, I did find out where the line comes from for the gantry. I have to back up alittle and rebuild a portion of the drum area. No problem. Thanks again Gator
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41chevy
CDL Student Driver
MY B-61
Posts: 743
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Post by 41chevy on Jan 18, 2012 14:25:38 GMT -5
Coming along fantastic!!! You and I are going to need our own table at the Freeport show for your crane and my concrete pump!! Paul
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kerr54
Local Delivery Truck Driver
Posts: 189
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Post by kerr54 on Jan 18, 2012 19:58:00 GMT -5
Thanks Paul, I've been so busy lately and not had time to look around on here. Do you have a thread of your concrete pumper? Love to see it.. But your right I think, this thing is taking up some space man... Kerry
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