Awesome gas powered winch on you tube.

[dtwigden]

I have been gearing up log enough trees to build my 1200sft house and garage from Dug Fir and one of my biggest problems has been so find a portable strong winch for skidding the logs to my trails. I just found this on YouTube and it looks perfect for my needs. It's a Honda 5hp engine directly driving a winch. 
https://youtu.be/KrYNi3GVciE

But I can't figure out what's going on with it mechanically. The engine is driving right to the winch shaft and not through the gearbox and so I'm unsure how it's getting it's gear reduction. I'm obviously missing something so I thought I'd share this and see if smarter mind can shed some light on what's happening. I just love this design and will make one and post it here if I can figure out its workings. 

[dtwigden]

Here's another video of the same design skidding logs. 
https://youtu.be/Lc8deEnmuSg

[dtwigden]

 

 

[Haleiwa]

The winch is driven by the planetary in the hub on the end away from the engine.  The shaft passes through the center of the hub without being connected to it, and the planetary drives the winch drum through a gear that is on the winch drum inside the hub.

[Quebecnewf]

You have seen the ones made by PortableWinch.com.   .?.?

Quebecnewf 

[John Mc]

The winch is driven by the planetary in the hub on the end away from the engine.  The shaft passes through the center of the hub without being connected to it, and the planetary drives the winch drum through a gear that is on the winch drum inside the hub.

As Haleiwa noted, most winches are geared down internally. The 3000 - 5000# electric winches I've seen are typically geared down by 135:1 or 180:1.
If you need further reduction, there are engines that ship with gear reduction added. The engine in the video does not appear to have gear reduction, however.
The winch shown in those videos seems to be an interesting way to repurpose an old, blown electric winch. If the gearing is still in good shape, it does not look difficult to do.
I've seen the portablewinch.com winches that Quebecnewf mentioned. Those are a great setup. And since they are a capstan design, rather than a spool, you are only limited by the length of the rope you have (and how far you can see what is going on), rather than the +/-50 ft of cable that fits on a typical electric winch.

[MikeON]

How did they cut the roots off so close to the stump? 

[mike_belben]

Shovel and sawzall will do it. 


Im curious how that winch can be put in neutral or reverse now.  Can it?

[Puffergas]

neutral is easy with belts and such. Reverse would only be free spool. Some gearing would be in the CV transmission, that is if the winch side has the matching pulley.

[mike_belben]

Yeah youre right.. Neutral can be accompished by just removing belt tension.  And the winch planetary disengage lever uncouples the drum for freespool.  Perfect.

It looks like he used torque convertor stuff in that video, no? 

I have a smittybilt XRC 8 with a busted something or other that isnt the planetary.  Guess this might be a good project.  My kubota PTO would be happy to spin it. Ive collected many drillpress pyramid pulley sets over the years as well.  3 speed would be nice.

[Haleiwa]

That engine has a centrifugal clutch.  Direct drive with a belt would be dangerous, as the winch would turn as soon as the engine turned.

[mike_belben]

Agreed.  I dont think i have ever seen a centrifugal clutch with inboarded weights like that.  Or is it some kinda dust cover i am looking at?

[John Mc]

I'm thinking that's a torque converter, not just a clutch. I think I can see the tapered side plate moving out around the 28 second mark in the first video.