wyn
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- Location
- Cardiff
I've been collecting a few bits together over the last few years to knock up a powered ring roller.
I made a bit of a start a few months ago with the frame and tubes for bushes to sit in. I had a bit of spare time the last couple of days so was able to do a bit more.
Some pics...
A gearbox i got hold of that reduces from 1400 rpm down to 25 rpm. The shaft used to be a flange mounted 3phase motor but i'll mount a pulley on it so i can run it from a single phase motor.
Turning down a bit of pipe to mount bushes for the main shafts...the bushes are 63mm ID.
Test fitting the tubes in a bit of 20mm flat...the holes were cut out with a plasma.
An extra bit of flat was welded on top on each side to give enough height for the centre shaft to move up and down
The extra bit welded on top.
The slot cut with a plasma then the surfaces machined for the centre shaft to run up and down.
The plate on the bottom was also machined to run up and down the slot.
The two plates and tubes ready to be welded together
Bottom tubes welded in and bushes fitted with a few more bars welded between the side plates to keep everything spaced right.
The bushes were a tight fit in the tubes but i also fitted grub screws in bottom of the tubes incase the bushes want to wander around.
I also fitted grease nipples to the centre of the tubes.
Test fitting the tube for the movable shaft.
Testing the tube travels up and down ok.
I'm going to try to use a 10 ton jack to force the middle shaft down.
Just getting a feel for how it will work.
There are a few trampoline springs attached to the middle tube to pull it back up.
The ram will be mounted as close to the front plate as possible.
I have also machined down the red cast iron fitting on the table and it's now welded to a steel tube ready to mount the main body of the ram to the frame.
The cast iron fitting i turned a shoulder on it and also the steel tube it fits in so it doesn't rely totaly on the weld.
I've started choping up some more 20mm plate ready to mount the hydraulic ram.
That's about as far as i've got so far.
I've also got hold of some 80' ish mm EN8 for the shafts and am hoping to turn it down from 63mm in the bushes to 50mm for the tooling end.
The other side of the shafts will be chain driven...i think i will be able to drive all three rollers in the right directions with the use of a few idler rollers to get the top shaft to run on the opposite side of the chain to the other two shafts.
More pics as it progresses.
I made a bit of a start a few months ago with the frame and tubes for bushes to sit in. I had a bit of spare time the last couple of days so was able to do a bit more.
Some pics...
A gearbox i got hold of that reduces from 1400 rpm down to 25 rpm. The shaft used to be a flange mounted 3phase motor but i'll mount a pulley on it so i can run it from a single phase motor.
Turning down a bit of pipe to mount bushes for the main shafts...the bushes are 63mm ID.
Test fitting the tubes in a bit of 20mm flat...the holes were cut out with a plasma.
An extra bit of flat was welded on top on each side to give enough height for the centre shaft to move up and down
The extra bit welded on top.
The slot cut with a plasma then the surfaces machined for the centre shaft to run up and down.
The plate on the bottom was also machined to run up and down the slot.
The two plates and tubes ready to be welded together
Bottom tubes welded in and bushes fitted with a few more bars welded between the side plates to keep everything spaced right.
The bushes were a tight fit in the tubes but i also fitted grub screws in bottom of the tubes incase the bushes want to wander around.
I also fitted grease nipples to the centre of the tubes.
Test fitting the tube for the movable shaft.
Testing the tube travels up and down ok.
I'm going to try to use a 10 ton jack to force the middle shaft down.
Just getting a feel for how it will work.
There are a few trampoline springs attached to the middle tube to pull it back up.
The ram will be mounted as close to the front plate as possible.
I have also machined down the red cast iron fitting on the table and it's now welded to a steel tube ready to mount the main body of the ram to the frame.
The cast iron fitting i turned a shoulder on it and also the steel tube it fits in so it doesn't rely totaly on the weld.
I've started choping up some more 20mm plate ready to mount the hydraulic ram.
That's about as far as i've got so far.
I've also got hold of some 80' ish mm EN8 for the shafts and am hoping to turn it down from 63mm in the bushes to 50mm for the tooling end.
The other side of the shafts will be chain driven...i think i will be able to drive all three rollers in the right directions with the use of a few idler rollers to get the top shaft to run on the opposite side of the chain to the other two shafts.
More pics as it progresses.