I have been following your thread too.
I notice that you said hinge. Aren't you going
to use an adjustable toggle,for regulating the
size of the output?
No. I know that chipmunks and probably others use this feature but I want this to be as absolutely simple as possible with as few moving parts as I can conjure. A simple hinge knuckle welded to the jaw tangentially that will accomodate a 2-1/2 IN DIA hinge pin will be the pivot point. I'm shooting for a 1/8 IN exit slot. After that, the material goes into the ball mill (an old cement mixer w/ trailer balls and sledgehammer heads acting as mill balls). So the real question becomes: Is it possible to take a 6IN DIA cobble sized piece of ore and reduce it to 1/8IN in one pass? I don't know but I'll soon find out. I don't care how long it takes but I am concerned about jamming. I have a jackhammer and I can reduce ore before I feed it in but I also have a blown disc in my back and I'd prefer to limit my time on the hammer.
Also are you using a roller
cam,crankshaft with bearing,or pitman arm
to move the jaw ? How much stroke are you
going to use on the movable jaw?
Friction cam, no roller, similar in principle to an auto cam/valve train. This will wear down of course and need to be refaced from time to time. Not sure about the stroke. My first guess is about 1/2IN eccentricty on a 2-1/2IN Dia shaft (major axis 3IN, minor axis 2-1/2). Looking at around 300 rpm on the shaft for about 5 cycles per second (!! seems like a lot??) Big flywheels.
set so it will only
open just a little more than the biggest rock
that you intend to crush at the top.
Determining the correct angle is mostly a
trial and error thing. Too much angle will
cause it to not feed well ,because it will
force the material up . Too small of an angle
will cause it to jam.
I'm worried about this. I'm guessing about 15 degrees but since my angle isn't adjustable, I'll be married to it once everything is welded up. But then again, it doesn't have to work well. It just has to work...
Cross hatch the jaws with
hardface all the way to the top,so they get
a good grip. You may not want to put any rocks
into orbit.
Yes, I was planning on stainless rod for that (which I already have). Hope that's a good choice...
Thx.Andy
Google small rock crusher,there is several old
patents with drawings,and specs.Top Report this postReply with quote
Chunlei contains other products and information you need, so please check it out.
The best value on the market, the Eagle Jaw Crushers are designed to eliminate premature failures to provide years of component life, durability, and reliability to meet the needs of your toughest crushing applications. The also feature flywheels with QD-type hubs for easy removal of the flywheels. All moving parts, including the reversible, full length- deep-ribbed jaw dies, are contained within the main housing, making Eagle Jaw Crushers ideal for portable or skid mounting.
For more jaw rock crusherinformation, please contact us. We will provide professional answers.
The jaw crusher processes abrasive hard rock, using the time tested overhead eccentric design. The short bearing span between the side frames reduces stress and shaft deflection. They eliminate premature failures caused by fatigue from uncontrolled stress with a 'stress control' design of the frame and alignment of the bearings, shaft, and toggle seat. Full 360-degree support at the bearing ensures maximum bearing life, with outer bearings mounted directly in line with the side frames to eliminate stress.
Want more information on crushing equipment? Feel free to contact us.