That's true, but my motor is only 140 watts, or around 11.7 amps from the battery. I have succesfully run the vacuum off of an inverter connected to a single battery before, so I'm not too concerned.Well, I have a "4000w" power inverter. To even get close to 4000w out, one would need a minimum of 170amps in. Most car batteries are ~50amp/hr. You would need three car batteries to make that 4000w, and it would last less than an hr at peak power. You are talking about taking two 7amp batteries, far too little. For 1000w, you will need ~40amp/hr.
You'll never get even a fraction of that 140W power delivered to the road. A bench test isn't realistic as there's no applied load. Locked-rotor amps will rapidly deplete batteries, and windings of that motor are way too small, it was made for high RPM not torque.That's true, but my motor is only 140 watts, or around 11.7 amps from the battery. I have succesfully run the vacuum off of an inverter connected to a single battery before, so I'm not too concerned.
Haha, yeah I expect some smoke on my attempts. I hope to achieve at least 75w of actual power output? I mean if people are able to go ~5mph using a cheap coordless drill, I would hope my setup would be a bit more powerfull.You'll never get even a fraction of that 140W power delivered to the road. A bench test isn't realistic as there's no applied load. Locked-rotor amps will rapidly deplete batteries, and windings of that motor are way too small, it was made for high RPM not torque.
Honestly I don't see that motor pulling its weight in batteries and inverter.
I do see it letting out lots of smoke trying, or the inverter will simply overload.
Or both!
Test in well-ventilated area away from hazards, wear PPE. AND...take video! It'll be cool.
The vid...not the motor, it'll be smoking!
I think it's around 1cm in diameter, but I'll measure it when I need to install a gear/wheel.A hand drill motor and vacuum motor are nothing alike. Would you try to run your air compressor with a vacuum cleaner motor, or vice versa? Also, the drill motor as a transmission and planetary gears built in. DeWalt used to have a pit bike that ran on an 18v drill. https://www.asme.org/topics-resources/content/make-way-for-drillpowered-bikes A couple friend at the track had them back in the day. They were quite expensive IIRC.
Simple bench test to display. Take the batteries, inverter, and vacuum motor and hook them up. Shove a pencil in the fan, flip the switch and watch the magic smoke leave the motor. Alternatively, start the motor, then shove a pencil in the fan and watch it self destruct.
Another engineering standpoint to think about: What is the diameter of the armature shaft in the vacuum motor? You add a clutch, get the motor going, engage, and the motor will be playing "divided and conquered". How do you plan on transferring the rotation of the armature to the bicycle?
I'm almost hoping you will do this just for the entertainment factor.