GRCS protoype
- Thread starter tnttree
- Start date
And here's the video, had a good time doing some real tree work for a change.
http://www.branchmanagerattachments.com/video/hydgrcsvid06.wmv
We didn't need to drag this tree across this yard, but we wanted to see what it would do. I think we both agreed it worked fairly well. Need to figure out a fairlead system, and some anchoring rings, once thats figured out you could use it on . . . . ahhhhhh ... I guess ...I imagined it sucking things up a ravine, or pulling trees over, lifting things lighter than the mini loader, pretty specialized tool but that self tailoring feature is awsome! /forum/images/graemlins/cool.gif
http://www.branchmanagerattachments.com/video/hydgrcsvid06.wmv
We didn't need to drag this tree across this yard, but we wanted to see what it would do. I think we both agreed it worked fairly well. Need to figure out a fairlead system, and some anchoring rings, once thats figured out you could use it on . . . . ahhhhhh ... I guess ...I imagined it sucking things up a ravine, or pulling trees over, lifting things lighter than the mini loader, pretty specialized tool but that self tailoring feature is awsome! /forum/images/graemlins/cool.gif
TreeCo
Carpal tunnel level member
A hydraulic motor on the bollard combined with a micro processor raises some very interesting possibilities as far a braking systems and shock load minimization. Shades of Dar Robinson.
It would be neat if the GRCS came with a hydraulic motor and an accumulator that would become pressurized from the bollard spinning as the load was lowered. This stored hydraulic pressure could then be used to power the bollard.
No external power source (hand crank) would be needed after the first few pieces are lowered. There would be much more energy captured from the lowering of parts of the tree then would ever be needed to tension the rope.
It may be pneumatics would work better than hydraulics.
It would be neat if the GRCS came with a hydraulic motor and an accumulator that would become pressurized from the bollard spinning as the load was lowered. This stored hydraulic pressure could then be used to power the bollard.
No external power source (hand crank) would be needed after the first few pieces are lowered. There would be much more energy captured from the lowering of parts of the tree then would ever be needed to tension the rope.
It may be pneumatics would work better than hydraulics.
Here's a zip file containing all the images resized to 25% and sharpened. 200KB total.
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And here's the video, had a good time doing some real tree work for a change.
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You have to be carefull with videos saying things like that as some only believe it's possible to do so in the UK!
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We didn't need to drag this tree across this yard, but we wanted to see what it would do. I think we both agreed it worked fairly well. Need to figure out a fairlead system, and some anchoring rings, once thats figured out you could use it on . . . . ahhhhhh ... I guess ...I imagined it sucking things up a ravine, or pulling trees over, lifting things lighter than the mini loader, pretty specialized tool but that self tailoring feature is awsome! /forum/images/graemlins/cool.gif
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Besides being blatantly obvious that you were demonstrating the sytems capabilities it is wise to explain that as there are "arborists" who would argue the system was not practical for the application and indeed took longer etc ... I can see why lawyers are so predominant amongst the human species.
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I think that it has a huge potential as an accessory to do tree work. With development the unit could still be anchored to the tree and the hydraulic's of the miniloader connected for the lifting of limbs.
Congrats to Greg and you are certainly a spoilt bloke to hang out with guys like that who go as far as developing systems and looking beyond the box so many a doomed in .... the only limits to which we are bound is that of our imagination. Hoorah to you both and keep up the Good work. /forum/images/graemlins/grin.gif
And here's the video, had a good time doing some real tree work for a change.
[/ QUOTE ]
You have to be carefull with videos saying things like that as some only believe it's possible to do so in the UK!
[ QUOTE ]
We didn't need to drag this tree across this yard, but we wanted to see what it would do. I think we both agreed it worked fairly well. Need to figure out a fairlead system, and some anchoring rings, once thats figured out you could use it on . . . . ahhhhhh ... I guess ...I imagined it sucking things up a ravine, or pulling trees over, lifting things lighter than the mini loader, pretty specialized tool but that self tailoring feature is awsome! /forum/images/graemlins/cool.gif
[/ QUOTE ]
Besides being blatantly obvious that you were demonstrating the sytems capabilities it is wise to explain that as there are "arborists" who would argue the system was not practical for the application and indeed took longer etc ... I can see why lawyers are so predominant amongst the human species.
......................
I think that it has a huge potential as an accessory to do tree work. With development the unit could still be anchored to the tree and the hydraulic's of the miniloader connected for the lifting of limbs.
Congrats to Greg and you are certainly a spoilt bloke to hang out with guys like that who go as far as developing systems and looking beyond the box so many a doomed in .... the only limits to which we are bound is that of our imagination. Hoorah to you both and keep up the Good work. /forum/images/graemlins/grin.gif
- Location
- healdsburg, CA
Uhhh, EKKA. that is 'Good' tree work, not goode tree work. 
Thanks Eric, I thought someone would blast me wonderin why we dragged that tree when we had the loader and Gregs swinger! You have to Anchor the thing to take advantage of the power. I need to scratch my head and play with it a little more. Wish Greg lived closer.
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It would be neat if the GRCS came with a hydraulic motor and an accumulator that would become pressurized from the bollard spinning as the load was lowered. This stored hydraulic pressure could then be used to power the bollard.
Treeco thats a pretty cool Idea, sounds like a lot of hardware, could you realistically pac that around? I'm pretty lazy I like driving and riding in.
Glens everytime I post something I worry about you. I thought I downsized them Half@ss 3MB to ~ 5kb you are the compression master /forum/images/graemlins/type.gif
[ QUOTE ]
It would be neat if the GRCS came with a hydraulic motor and an accumulator that would become pressurized from the bollard spinning as the load was lowered. This stored hydraulic pressure could then be used to power the bollard.
Treeco thats a pretty cool Idea, sounds like a lot of hardware, could you realistically pac that around? I'm pretty lazy I like driving and riding in.
Glens everytime I post something I worry about you. I thought I downsized them Half@ss 3MB to ~ 5kb you are the compression master /forum/images/graemlins/type.gif
- Location
- Retired in Minneapolis
The place where I used to dump my chips was in a marshy area. Over time I had built up a roadway of chips. This worked just fine unless I slipped off. Then the truck plopped frame deep in muck. Too often, until I started to widen the road, I had to call a wrecker to pull me out.
The wrecker had some wheel chocks that would go behind the rear wheels and then get chained to the frame in some fashion. Right now I can't recall what the chains did but I do remember that they were integral in the whole winching setup. Get hold of Kelly's Towing or another heavy pull wrecker and find out how they use the chocks. I'm sure that the setup would work for the mini if you pulled in line to the unit.
Have you considered mounting the winch on a tube in tube setup so that you can spin it to face the drag line? This would make tieing the mini down much easier.
Aren't you concerned about tipping the mini on it's side since the winch is mounted up so high? I'd rather have it down low, a foot or so from the ground.
The wrecker had some wheel chocks that would go behind the rear wheels and then get chained to the frame in some fashion. Right now I can't recall what the chains did but I do remember that they were integral in the whole winching setup. Get hold of Kelly's Towing or another heavy pull wrecker and find out how they use the chocks. I'm sure that the setup would work for the mini if you pulled in line to the unit.
Have you considered mounting the winch on a tube in tube setup so that you can spin it to face the drag line? This would make tieing the mini down much easier.
Aren't you concerned about tipping the mini on it's side since the winch is mounted up so high? I'd rather have it down low, a foot or so from the ground.
- Location
- United Kingdom
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It would be neat if the GRCS came with a hydraulic motor and an accumulator that would become pressurized from the bollard spinning as the load was lowered. This stored hydraulic pressure could then be used to power the bollard.
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The bollard doesn't spin when the load is lowered!??
It would be neat if the GRCS came with a hydraulic motor and an accumulator that would become pressurized from the bollard spinning as the load was lowered. This stored hydraulic pressure could then be used to power the bollard.
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The bollard doesn't spin when the load is lowered!??
- Location
- Retired in Minneapolis
Several years ago on the ISA discussion forum the idea of a hydraulic lowering system was discussed. There were some really creative ideas using torque converters configured similar to a cars automatic transmission.
Think of the possibilities...power in from one side and the other could be a clutching system to dampen any slam dunk loads. I know that something like this could be designed. The challenge would be to make it cost-effective.
Think of the possibilities...power in from one side and the other could be a clutching system to dampen any slam dunk loads. I know that something like this could be designed. The challenge would be to make it cost-effective.
TreeCo
Carpal tunnel level member
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The bollard doesn't spin when the load is lowered!??
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In my imaginary lowering device the bollard would spin and be braked hydraulically. Rope wear would be reduced as would bollard wear.
http://www.answers.com/topic/dar-robinson
The bollard doesn't spin when the load is lowered!??
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In my imaginary lowering device the bollard would spin and be braked hydraulically. Rope wear would be reduced as would bollard wear.
http://www.answers.com/topic/dar-robinson
- Location
- United Kingdom
Ok, I'm with you now.
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Shades of Dar Robinson.
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Off topic, but I had the pleasure of meeting Dar Robinson several times, who was married to my friend's sister. Was stunned to hear of his death a couple of years after we met.
On the GRCS, I also think it would be better to have it in line with the machine. I have also used my Simpson capstan chainsaw winch to raise and lower branches. The only thing is that I limit it to 500 lbs or less and no shock loading.
Shades of Dar Robinson.
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Off topic, but I had the pleasure of meeting Dar Robinson several times, who was married to my friend's sister. Was stunned to hear of his death a couple of years after we met.
On the GRCS, I also think it would be better to have it in line with the machine. I have also used my Simpson capstan chainsaw winch to raise and lower branches. The only thing is that I limit it to 500 lbs or less and no shock loading.
Lumberjack
Branched out member
I have been thinking of a hydro motor/drill to attach to current GRCS's. With a pressure gage and regulator you could have a dial calibrated to show the actual force your dialing in on the rope with a quick blip of the trigger.
Basically I would attach like the drill adapter does now, but have a calibrated hydro drill, no cranking or tired arms and a higher level of control and feedback.
Basically I would attach like the drill adapter does now, but have a calibrated hydro drill, no cranking or tired arms and a higher level of control and feedback.
