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Author Topic: After the sanity check!  (Read 9455 times)

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Offline Satamax

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Re: After the sanity check!
« Reply #60 on: July 27, 2018, 05:36:40 PM »
Liteul progress!

(Image hidden from quote, click to view.)


(Image hidden from quote, click to view.)


(Image hidden from quote, click to view.)



Now, it need a fairlead, a PTO, a fairlead support. An hydraulic pump. New batteries.
Guys, an idiotic question, it's a doozer winch. Originally. How do i attach this to my machine. I can have pretty much all the steel i want. I beams, C beams. There is a plate at the back, with plenty of holes. But not much underneath. I know i need to make a fake chassis. Or do you call that sub frame? 
Thanks a lot guys. 
French CD4 sawmill. Latil TL 73. Self moving hydraulic crane. Iveco daily 4x4 lwb.

Offline mike_belben

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Re: After the sanity check!
« Reply #61 on: July 27, 2018, 05:55:28 PM »
Build a big "headache rack" and bolt it to chassis with stout triangulated bracing.  Put safety cage in between to catch broken cable. 
Revelation 3:20

Offline Satamax

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Re: After the sanity check!
« Reply #62 on: July 27, 2018, 06:13:55 PM »
Thanks Mike. 

Well, i think i see what you mean. But would you have a few pics from the net to show me? 

Thanks a lot. 
French CD4 sawmill. Latil TL 73. Self moving hydraulic crane. Iveco daily 4x4 lwb.

Offline mike_belben

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Re: After the sanity check!
« Reply #63 on: July 27, 2018, 10:22:34 PM »
Post up an image of the mounting bolts on the winch and ill draw something up that will hopefully help give you some ideas
Revelation 3:20

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Re: After the sanity check!
« Reply #64 on: July 28, 2018, 09:43:32 AM »
Here you go Mike. 

French CD4 sawmill. Latil TL 73. Self moving hydraulic crane. Iveco daily 4x4 lwb.

Offline mike_belben

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Re: After the sanity check!
« Reply #65 on: July 28, 2018, 07:44:35 PM »
Would something like this work?

Revelation 3:20

Offline Satamax

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Re: After the sanity check!
« Reply #66 on: July 29, 2018, 04:30:57 AM »
Thanks a lot Mike, for all you do for me. 

That's pretty much what i was thinking. I would like the winch to sit as low as possible. But that's no prob. The only problem i see, is the gusset triangles, i think i need something beefier. I need to calculate. the loads and pulling stresses one the welds. I understand now what you said about a headache rack. I should double the winch support with a sort of roll cage. Actually, i didn't think of doing this, this way. But makes perfect sense. 

Thanks again. 
French CD4 sawmill. Latil TL 73. Self moving hydraulic crane. Iveco daily 4x4 lwb.

Offline james

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Re: After the sanity check!
« Reply #67 on: July 29, 2018, 08:49:39 AM »
reminds me of the MB-4 Coleman aircraft tug we used in the Air Force
james

Offline Satamax

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Re: After the sanity check!
« Reply #68 on: July 29, 2018, 10:48:31 AM »
They-ve been used as aircraft tugs, train pushers, snow blowers or clearer with a v blade. Forestry tractors, post setters etc. 

I've checked  MB-4 Coleman aircraft tug and true, there is some looking exactly like this. 
French CD4 sawmill. Latil TL 73. Self moving hydraulic crane. Iveco daily 4x4 lwb.

Offline mike_belben

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Re: After the sanity check!
« Reply #69 on: July 30, 2018, 09:15:30 AM »
Yeah you can make your brackets however you need to get the winch down low and reduce that pto shaft angle.  You may also want to set it more rearward in the cradle for better weight balance and a longer pto shaft.  

The big diagonal line from roller down toward frame corner is supposed to be a brace i just scribbled on.   Im sure youll come up with something good.  Make the headache rack bigger than the cab and it can be the base for a cage, and the primary spot to mount your toolbox, saws, lights, extinguisher/water can, chokers and chains etc etc.  This way when you do roll none of that stuff is in the cab smashing you to pieces. 
Revelation 3:20

Offline Satamax

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Re: After the sanity check!
« Reply #70 on: August 22, 2018, 03:14:08 AM »
Hi everybody. 

Well, asking myself technical questions again. 

The input shaft of the winch is 1.5" six splines. , with a 1/2" hole across it for a pin. I wonder; wouldn't it be clever to just make the drive of the winch around this splined shaft, round, with no splines. And use the 1/2" pin to drive it and as a shear pin, to protect the winch? 

To drag 10 tons on the lowest layer, i need 330 kg or 726 lbs, resistance at the shearing planes, to power the winch. 

1/2" rod, is 126 mm, and i know it can easily cope with 5 kg/mm So a half inch rod can cope with 630 kg per shearing plane, 1260 total. That's plenty. 

So i think i don't have to bother myself dealing with that dang 1.5 splined shaft! 


What would you say? 

Thanks. 
French CD4 sawmill. Latil TL 73. Self moving hydraulic crane. Iveco daily 4x4 lwb.

Online Crusarius

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Re: After the sanity check!
« Reply #71 on: August 22, 2018, 08:18:46 AM »
I would be concerned about wallowing the hole out and breaking the splined shaft. The problem with a round hole through a round shaft is the edge of the hole is very thin. Once it starts to crack or tear it doesn't take much to finish it off. It will tear its just a matter of time.
I knew what I thought I meant.

Offline mike_belben

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Re: After the sanity check!
« Reply #72 on: August 22, 2018, 09:14:22 AM »
Itll work.  I piggybacked a hydraulic pump onto the back of a hydrostatic fan shaft using a rollpin to keep the lovejoy from spinning.  Maybe a 3/16 rollpin and its handled 14hp or so, never sheared.  

A 5/8 bolt will tow and panic stop a 14k trailer, so you arent breaking a half inch bolt in that aplication.  My huge forklift chain uses a pair 5/16 to fixed the chains at each end.  

You may want to start with 1/2" threaded rod.. Something soft to get a feel for the load.  Shattering the spline output would really stink.  Otoh if it does shear the debris may eat up your splines.  You want those pieces free to eject.
Revelation 3:20

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Re: After the sanity check!
« Reply #73 on: August 22, 2018, 09:25:36 AM »
Double jamb nuts on each end will be good for that. that way they only have 1 way to go.
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Offline mike_belben

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Re: After the sanity check!
« Reply #74 on: August 22, 2018, 09:35:28 AM »
True.  And add some mass to help them fly out.  
Revelation 3:20

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Re: After the sanity check!
« Reply #75 on: August 22, 2018, 10:14:59 AM »
If you put a guard around them you can usually recover the nuts and reuse them :)
I knew what I thought I meant.

Offline Satamax

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Re: After the sanity check!
« Reply #76 on: August 22, 2018, 10:37:51 AM »
Guys, this is how it looks like. 



 

Thanks for your replies. 
French CD4 sawmill. Latil TL 73. Self moving hydraulic crane. Iveco daily 4x4 lwb.

Offline mike_belben

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Re: After the sanity check!
« Reply #77 on: August 22, 2018, 08:07:51 PM »
Id do it.  If somehow the shaft should snap at the hole theres enough spline to put a yoke on still. 
Revelation 3:20

Offline Satamax

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Re: After the sanity check!
« Reply #78 on: August 23, 2018, 04:12:59 AM »
Thanks a lot Mike. 
French CD4 sawmill. Latil TL 73. Self moving hydraulic crane. Iveco daily 4x4 lwb.

Online Skeans1

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Re: After the sanity check!
« Reply #79 on: August 23, 2018, 07:29:53 AM »
Just curious why not set up a small truck tower yarder with the ground you guys have its be safer.


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