Gear Driven Hydraulic Scarifier System on Boxblade

[3RRL]

A little paint does wonders, doesn't it?...Thank you Loretta!
Here it is with the rippers down. I was able to move the system easily with the manual handle for "bench testing" the system. Later when hooked up to the tractor hydraulics, it worked like a dream...way better than I thought it would.

 

[3RRL]

So there you have it.

That's what I did on my vacation last week. Worked my @$$ off on the darn implement improvements. I will say it was very gratifying to have them come out as good as they did. I am sooo pleased. I have a couple of short videos showing the new boxblade in action where am cutting down a bank above a graded area to creat some slope, not such a sharp drop off. So I back up the tractor, lower the scarifiers down, lower the boxblade and take a big rip off the edge. Then I raise them as I pull away form the edge so I don't rip the entire area.
Here's my last picture for tonight showing the boxblade in actions.
Hope you enjoyed the story.

 

[Ductape]

Rob,
Only a mad man would go to all the trouble of building gear driven scarifier teeth for their box blade !!!!

Its a work of art !

 

[RonR]

Great Job!

I also get amused at fine machinists. I used to work in the biz and our shop would build parts (if machined, to .001 tolerance or so). They'd send the stuff to the field where we'd eyeball it in place and weld it on!

One time back at the plant, they needed a four row potato digger built to run some tests--only they didn't have one in stock. They did have a six row. So my task was to make a four row out of the six row.

For the structure, I was told to put it on metal sawhorses, then mark and cut like 48" from the frame from front to back, then re-weld it. So that's what I did.

The machine shop remade the rollers and stuff, but I thought that was an interesting mix of torch and lathe.................

Have fun. Keep those great project pics coming.

Ron

 

[Bird]

It's beautiful, and I'll bet no one else ever has one like it. Just the material costs, not to mention the machining and labor, would be tough. How much weight did it add to the box blade?

 

[M4800]

That's Awesome. You are the Man!

 

[BloomingtonMike]

Rob.

Holy cow my friend. You are amazing!

OK - So where is your shop pics??? And where is the paint booth for your awesome wife!! Her work is amazing as well!

You two have an amazing way with steel and paint. You both do a great job!

Lets see the shop!

 

[GaryM]

It's a beautiful thing! /forums/images/graemlins/ooo.gif

 

[3RRL]

Ductape,
Pretty cool idea though? Even for a mad man... /forums/images/graemlins/cool.gif
If you guys don't mind, I'll post a few more details on the boxblade.

This is a close up of one end riser bar and gear assembly. These end ones hold 2 scarifiers. Notice there are no retainer rings or cotter pins to keep the shaft in place. This is because each gear is keyed and the key/gear/shaft are held between those side plates locking them in place but out of sight. This made for tricky, sequenced assembly. I will also add protective covers to these after the photo session.

 

[3RRL]

Ron,
Boy are you ever right...It's a complete different mind set. Things not being "exact" used to drive me crazy. But now that I'm old it's easy to make stuff ±.050" instead of ±.0005". It also works just fine in the field.

This picture is a close up of the center riser bar that holds 3 scarifiers. It has the same gear/rack relationship as the outside ones except additionally it has the racks coming from the hydraulic cylinder on the opposite side to power the drive train. When the cylinder pushes down, those racks turn the gear which in turn "lift up" the racks that are bolted to the riser bars. The gear acts like an "idler" gear in this instance. I did have to keep the distance between the gears/racks reasonably close to keep the proper running clearance between them and avoid "jumping" off track.