3PH SSQA build

[Steve_Miller]

Well I put the post hole project on hold mainly because I haven't found an auger (cheap, I mean free) that I can use yet as a starting point. So I've started the quick attach for the 3PH. I am building from scratch and it may look similar to some other brand name hitch but I can assure you it is my own design. :mischievous: I used four by two tubing for the main uprights and two inch square tubing for the cross members. The rest of the parts and pieces are angle and flat bar. If anyone wants the dimensions I can post at a later date if you like. I built the main tubing part at work and used the wire feed welder, man what a treat compare to the Miller AC Thunderbolt. Some of my welds look professional and others look like a beginner. I have about 8-10 hours into it so far. I will post some more photos as I go along. Right now I am looking to perfect a simple pin setup other than the pivot type that usually come on the SSQA plates. I did a search several days ago and found a thread here somewhere where someone built a QA and used threaded rod and welded nuts on to screw the locking pins in place. Now I can find it for the life of me, I searched for an hour and couldn't find it, i was hoping someone could steer me to it. Any how more photos to come. You can criticize my welding if you like as I will have a chuckle over it, i know I do when I look at some of them, they usually look better after I grind them. Enjoy

 

[Rustyiron]

Lookin good. I have an extra (skid loader side) SSQA that I'm going to put a 3 pt. on to it. I know that NH sells the tapered "pins", I've replaced them before. I would guess that BC, JD, Case, all of them would sell this part. This would be easier than trying to fab something up. You'll still have to make the outer part or "sleeve" that the pin fits into. Then come up with a way to make sure the pin does not come out.

 

[puckgrinder85]

could probably use DOM tube for the sleeve, decent tolerance stuff.

 

[Roehm Farms]

Looking good.

Gravity works fine for my adapter. I used an old hex shaft and ground a taper on it. Nothing else holding it but gravity.

 

[94BULLITT]

Looks good so far Steve. Could you use a pin going horizontally to lock the latching pin in place?

 

[Steve_Miller]

I think the spring, however it is configured is to keep tension on the locking pin to keep the attachment snugly in place. Here are a few more shots.

Steve

 

[Roehm Farms]

I had planned for a spring or at least a locking bolt, but found it really isn't needed for mine.

Looks great

 

[Rustyiron]

Turned out real nice steve_! Should be real handy.

 

[ak9]

THIS IS BY FAR THE BEST ATTACHMENT I've BUILT HANDS DOWN . Back in 2008 I designed this and built it and still use it now ...I've weight tested it to 3800lbs with no problems ... As far as the locking pins here is a pic of how I did it ... basically a simple cam /lever with a spring to give tension and lock ...the pieces of chain are used to keep it "open" when hitchin up and never get out of the seat

 

[Steve_Miller]

Looks very simple. Just the way I like it. How did you attach the springs in the tube or is the other side open?

Steve

 

[ak9]

The way I designed the locking pins/levers ... I did not like the way the factory design was , when I would try to attach an implement with the stock set up my locking levers would become easily damaged by a little over rotation of the curl function and the locking levers would hit/bend when attaching an implement .So when I designed the converter ,3pt ssqt locking levers, I descided to make this Flaw in the factory set up work for me ... so now when I attach something with the way I built it the locking levers may hit and no damage AND the levers also retract the locking pins at the same time . The factory set up on my front loader rotate parallel to the back of say my bucket as the adapter I made rotate perpendicular to it .
As far as how I made It Positive lock... This was achieved by determining the apex of the stroke of the locking pin/lever ...so as the pins are fully deployed
the lever is in line with it and the spring keeps it there in that position so it really can't unlock . It did take me a bit of syferin to get the geometry right but it really is a simple design......and It all was made with FREE scrap metal:dance1:....oH TO ANSWER YOUR ? AFTER I built it I wrapped the lever set up with an angle iron piece to protect it all,,, tacked welded in place... but left some space to change the sofa bed springs I used if they fail:dance1:

 

[Steve_Miller]

Finally finished this last week. I guess I really don't need it too bad for the time it took me to build it. I guess the fabricating is more the necessity than the actual device.

 

[94BULLITT]

Finally finished this last week. I guess I really don't need it too bad for the time it took me to build it. I guess the fabricating is more the necessity than the actual device.

It looks good. I see you came up with a good solution for the latches. I think now that is it finished you will find plenty of uses for it.