JBC limited NZ

[andyathome]

hey Justin heres a real quick video of the crusher crushing dirt lumps.
just fitted battery drill to shaft and had it set on low 0- 400 rpm, it appears to work better at the higher speed but needs conveyors running to take away the crushed dirt as it blocks up with out them running.
the crusher motor is a 1200 rpm unit so I can slow it down on the pot on my power supply box.

http://youtu.be/TE4-31RpFto

cheers andy

[andyathome]

heres test #2 , big rock ( hard dirt) may have to change crusher plate to make gap smaller at bottom but first I need my conveyors running so it has a chance to break the lumps.

I think the problem is that the dirt is pilling up on conveyor and dirt isn't going far enough into jaws to be broken down.

I think once the conveyors are running and there is weight ( more dirt) on top of the rocks in the jaws they will be forced down the shute to be crushed.

heres a quick video , let me know if my theory is right?



cheers andy



http://youtu.be/Oce8bhDK7gE

[Lil Giants]

Your screening holes prior to the crusher, I've discovered the fines help move the chunks around in the box, constantly changing the bite of the jaws. Sometimes chunks lodge & stay in one position, then the jaw pivots on that one chunk, not breaking it any further.

O rings for belts... to drive your crusher? Won't last very long, they stretch too easily. Cog belt or V belt with steel in it.

[andyathome]

I have been told the same about the fines shute.
we have a guy at work who used to repair them in South Africa and he suggested a sliding mech under the hopper slots that I can adjust to suit the material im crushing and that the shute must be full to work properly. And apparently it needs to lift the rocks on the jaws when crushing other wise they will jam in place.
I do intend to use a toothed or a vee belt but I had the seals ( o rings ) lying around so for initial testing and a zero budget they will have to do for a couple of weeks.
this has been a bit of a learning curve but still fun.
by the way Ive also learnt that you dont put a large plastic handle of a screw driver into it to see what happens.
I now have a large square shanked handle less screw driver and lots of yellow plastic bits.

cheers andy

[Lil Giants]

So what is your offset of the crankshaft?

[andyathome]

Never realy measured it , but im guessing around 6mm.
the top moves more than the bottom of the crusher plate..
I also need to change the shape of the jaws to a rounded shape so the majority of the crushing happens in the middle of the plates.
there is a lot more to just smashing up rocks.
my design is a little different to a real jaw crusher but it actually works.
maybe I should pattern my design LOL.

cheers andy

[andyathome]

just a small up date , got all motors mounted and tested.
track drives all good .
a few hand rails to go and a total repaint, also still having trouble finding drive belts that im happy with.

Also picked up a king hauler day cab with a wedico 3 stage hydraulic ram on a home made tipper trailer , needs some loving but that's what winter is for.

any way heres some crusher progress







cheers andy

[Lil Giants]

As fast as it seemed to initially go together, I was hoping to see a video by now of it breaking rocks?

[andyathome]

you and me both, but the mrs dosent quite share the same enthusiasm , hence the jobs that need doing around the farm.
now that the fencing is all finished and creek cleared, did I mention trees cut down and made into next years firewood......

I now have a few days play time, I need to find some closed loop timing belts for the crusher drive as the home made ones don't last and my initial orings were never going to be permanent .
I will measure up what I need and order them and also make a start on the control wiring.
I want be able to drive tracks via rc but want to use my power supply to run vibrator, conveyors and crusher motor.

cheers andy

[andyathome]

still waiting for some belts to show up for the crusher , so I made a start on the latest project.
I picked up a second hand king hauler with a home made tipper trailer , which has a 4 stage wedico hydraulic system.
the plan was to clean it up and a quick paint job....
the previous owner wasn't too kind to the truck and a little rough in the building side of things.
so the plan changed a little, I was going to make a trailer and fit the hydraulics but looking at the truck , as a day cab it looked too long.
plan B , make the truck into a dump truck and make a smaller pup since Ive already ordered some axels I might as well use them.

heres a few progress pictures, The cab will be lowered as all the plastic parts holding the cab were broken of butchered.















cheers andy

[andyathome]

more time spent in the shed.
this is how the truck started in the morning and how it sits now.
lots of sanding to finish off tipper body and then its the tail gate to make.















slowly getting there

cheers andy

[andyathome]

got a little more done on the dump truck.

not overly happy with the tipper body, due to a little warping when welding.

No gas for the tig so had to use the mig, blown a few holes here and there but nothing a little filler wont hide.
I will also replace the plastic tanks and make two stainless ones so that one of them will be full of hydraulic oil and the other possibly to hold the pump.

its been an interesting week, the mrs has been laid off , new parts are turning up daily for the dump truck and pup build and the dogs ate the spa pool cover and chewed through the spa pool power cord when it was turned on!!!!!
what do ya do...



Ive also got another wedico ram and pump coming from a fellow RC chap in ausie , so pup will match the truck.



got some more sanding to do then it is the big decision on colour choice.



enough talk heres a few pictures













cheers andy

[Lil Giants]

So what size wire do you run in your mig? I have .023" in a small hobby mig & welding light gauge works very well.

So... did the dog(s) get electrocuted?

[andyathome]

Im useing 1mm wire at the moment but have several different nozel sizes.
would usualy tig most of the time as I can weld better with it and less chance of burnning my shed down.

and as for he dogs, they are lucky they are alive either way.
just got back from a four hour round trip to get another spa cover .

cheers andy

[Lil Giants]

Yeah, I use 035" wire in my 200amp mig to do my various farm welding tasks, that's a bit smaller than 1mm. The smaller 023" wire takes less voltage to melt & splatters a lot less too... so what do you use the big wire for?

[calum_scania]

Really enjoying the updates on the crusher, its really taking shape

Do you have any pictures of the jaw setup? I'm thinking to make something similar and I was wondering how to attach the jaw at the bottom?

What speed are you going to run the jaw at?

Calum

[andyathome]

Hey joe. I use the mig to do structual things, roll cages, chassis mods.
what ever the guys need. Running high amps and a good sized wire is more forgiving on heavier structual steel.
I used to race off roaders running a turbo charged subaru engine , did pretty good but now its time to spend more time at home.
broke too many bones racing cars and bikes.
I still look at the trophies and think I could be the ledgend again, but the cold mornings remind me im not 20 years old any more.
Would rather help the young crowd and try and pass on a bit of advice.

I do love my small 3 in one tig/ plasma cutter/ stick welder awesome for most jobs, just need some more gass.

[andyathome]

ok , colour choice for the truck, real simple.
checked cabinet for spray paint, only had black.
so truck is black.
also sprayed dump in the aluminium.
need to start fitting some exhausts ect to break up the black.
Ive sprayed most of the chrome bits in aluminium paint , and it dosent look too bad.
the steps ect that came with the truck were all corroded and needed painting, also when I make up the hydraulic oil tank that will get the aluminium to match.


fresh out of the paint shop



cheers andy

[Supermario]

I think it looks great ! correct me if I'm wrong... Your putting this rig to work! Not trying to win a beauty contest right? Function before fashion!
Can't wait to see it hauling.

[andyathome]

cheers , its defiantly no beauty queen, but it aint too ugly

got a bit more done due to average winter weather, sprayed the plastic chrome parts in aluminium that I will be using and fitted.
I don't know whats on the windows but nothing takes it off so may have to order some new glass.
I will make some exhausts and air filters ,I also made a start on the trailer.
cant do much more until my wheels and axel turn up,

heres a picture update







cheers andy