Hi all
Has anyone got a link to a decent UK motor + gearbox supplier?
I need 12/24v 200RPM motor with gearbox of reasonably decent quality to drive a large mechanical screw.
I found this...
But AS I TOTALLY HATE .... even though the website is .co.uk, it ships from China.
I am getting caught out with that trick more and more.
It would be quite rare for a project requiring a keyed shaft for power.
Well not sure how else to drive this thing....
It spins pretty freely, but its 2m tall. Lifts golf balls from the bottom to the top.
I was thinking of a motor with integral gearbox.... approx 200RPM. Then, I control that speed with an ESC/H-Bridge if I needed to dial it back.
10mm GT2 belt on a 50/50 ratio (which then gives me the ability to alter the gearing if required).
Also, a magnetic clutch just in case of jams.
I could drop the gearing to say 60RPM and change the gear ratio
Maybe one of these.... looks like a keyway shaft (and I don't think a GT2 belt will cut the mustard)
OK. I am liking that 24v 45W motor. Need to work out the exact RPM I need.
Then thinking of steel gears from these guys:
(That gear is just an example).
I can get the 8mm gears in simplex with a 10mm bore for the motor and a 25mm bore for the rig (that is the centre drive shaft diameter).
The only thing I need to do then is add a keyway to the 10mm bored gear.
Then use an 8mm chain and make my mounting bracket adjustable for tension.
You can do that with a file.
How much torque / power does the screw require?
Screen wiper motors may fit your goal...
Looks like an auger, what is it moving / lifting?
I have used this UK based company for all sorts of motors.
If you want to control the exact speed then you will probably need a stepping motor.
You can spin the auger by hand as it's on some decent bearings. It just lifts a golf ball, so literally no 'load'. Just the weight of the mech itself.
Wipers motors are OK, but might be a bit slow (unless I gear them up).
Yea the keyway is an easy fix
The centre shaft on the block bearings is a 25mm shaft. Then they have made the auger sit on this centre 25mm shaft using another set of bearings, so the whole mech is actually running on two sets of bearings.
So, my plan was to make a 3d printed, solid 'clamp' that fits to the top of the auger shaft piece with embedded Neodymium magnets.
Then a matching piece that clamps to the 25mm shaft above it.
I am driving the 25mm shaft with my chain. So this would give me a 'clutch'
Do we think a BTS7960B 43A H-bridge will cope with that motor in post 3?
I have some here.
