what to do with an old vacuum clener motormotor

Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking near and edifice electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click hither to register now.

• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who relish talking almost and building electronic circuits, projects and gadgets. To participate y'all demand to register. Registration is complimentary. Click here to register now.

• Forums
• Electronics Forums
• Full general Electronics Chat

You are using an out of date browser. Information technology may not display this or other websites correctly.
You should upgrade or utilise an alternative browser.

Uses for old vacuum motor?

• Thread starter Myrmidon
• Start date Aug v, 2009

Condition

Non open up for further replies.

• #1

Greetings all.

I take managed to pilfer ii vacuum cleaner motors, 1 rated at 1000W and one at 800W.

Simply wondering if anyone had any thought for using them for something? They appear to be a.c. motors though of which i have fiddling experience and demand to go over my uni notes once more.

I was curious about some kind of generator of some kind.

Any suggestions welcome.

• #2

They are universal motors, they piece of work on either Air-conditioning or DC.

• #three

Interesting.

Have you any idea how useful they could be in a air current generator experiment? I'5 tried testing them and spinning the motor to see what kinda voltage is produced only...and rather ashamedly, i tin can't become a voltage reading at all.

I'thou sure i'grand probing the correct pins.

• #4

Connect an auto 12V battery to it. Perhaps mountain a sprocket or friction shaft and on a cycle.

Unless has permanent magnets inside, it will not generate.

• #5

Vacuum forming car.

Inflating automobile, if you find a way to concentrate the air blowing out of the fan so you lot can use it to inflate things such as a dingy an air bed or even balloons. Balloons tend to burst very quickly though.

• #6

I've got a motor from a vacuum too and came to the same questions. Mine runs at 30,000 rpm...that seems very fast.

I'k thinking nigh using information technology like one using compressed air to clean debris off whatsoever it is you desire to clean, without take a tank. Merely need to make a nozzle with a small cantankerous section at the get out of the hose to increase the velocity. Take to fire it upwards when you desire to utilize it, and keep the cease open non to create backpressure...don't know if that will burn out motor.

My two cents.

• #7

I'll relate a story about Vacuum Cleaner Motors:

When I was in high school electronics shop form iii/4 of a lifetime ago, my buddy brought an old vacuum to school and took it apart. He had it on the work bench, and rigged a 120V suicide cord to ability it. He plugged it in. It began accelerating and began sounding like a siren or screaming banshee...

Mr Allen, the shop instructor was articulate across the room, and I think to this solar day how he looked up, had a puzzled look on his face, his optics got wide, and he began running toward my buddy. He only got about i/ii way beyond the room in the time that the motor reached (we figure) about 35000 rpm. With no impeller attached, there is aught but windage in the core gap to limit the speed of a serial-wound motor...

My buddy realized something bad was about to happen, so fortunately he ducked nether the table. I turned my confront away. I yet remember that fourth dimension had slowed and Mr Allen looked like he was moving in slow motion...

Merely equally the sound became piercing, the motor exploded. Pieces flew radially at right angles from the shaft axis, and fortunately no one was directly in line with it. It punched holes in the suspended ceiling tile to a higher place it, broke the florescent light fixture, broke out a window about 15' away, and threw pieces to both ends of the room. Made a hell of a bang.

It was a real physics lesson! Commencement, the speed of serial wound motors is limited only by friction; accept off the impeller, and there is merely a slight load due to windage. Second, when you spin a wound-rotor at ~35000 rpm, the centrifugal strength is enough to cause the copper wiring to come up out of the slots in the rotor. 3rd, when the copper wire comes out, you instantly transfer the momentum of the spinning rotor to the stationary stator, which causes an explosion equivalent to about 1/4stick of dynamite.

Bottom line: Do not plug in a vacuum cleaner motor with no load on it!!!

• #viii

There was an episode of Mythbusters on US television where they made a hovercraft from vacuum motors... sounds fun

• #ix

I've rigged a vacuum cleaner motor upwardly with no load any null bad happened. It was a serial wound motor and did spin pretty fast., ane of the brushes adult a minor bit in it merely it still worked. I suppose I was lucky, I now know that series wound motors should never exist run unloaded.

Most mod motors have the fan fixed to them and the only way of removing it is with a hacksaw.

• #10

Wanna try something scary, disconnect the field winding of a running fifty hp DC motor, first scare is the arc that follows the pb as you move it away from the terminal, the second scare is the audio of budgeted doom as the motor starts to build RPMs very rapidly and you know your about to lose your job, if not your life or limbs equally it comes apart if you don't get that atomic number 82 back on the terminal, the 3rd scare is the arc as you force yourself to put the lead back instead of running. You just exercise this exam once in your entire life!!!!! In that location is likewise that interesting sound as everything comes back to normal.
Kinarfi

• #11

I like this thread

• #12

Wanna endeavor something scary, disconnect the field winding of a running 50 hp DC motor, first scare is the arc that follows the lead as you move it away from the last, the second scare is the sound of approaching doom equally the motor starts to build RPMs very rapidly and you know your nearly to lose your task, if not your life or limbs as it comes apart if you don't get that lead back on the terminal, the third scare is the arc equally yous force yourself to put the lead back instead of running. You just do this test once in your entire life!!!!! There is too that interesting audio as everything comes dorsum to normal.
Kinarfi

I accidentally did the same matter in my motor class in school. Fortunately I immediately plugged the field connection back in when I heard the motor taking off. My instructor came over and said "Don't do that again".

• #fourteen

They probably build things 'safer' (less fun) these days.

• #15

Unless has permanent magnets inside, information technology volition not generate.

This is incorrect.
The residual magnetism in the armature starts the generating procedure.
The generated voltage supplies voltage and thus magnetic flux (field winding) to commencement the generating process.
The windings should be put in parallel for this to produce the best results.

• #xvi

You could connect the suction port to a desolder pump. Saves some piece of work and is more constructive than the piston inside the pump.

Programme for a bypass not to remove solder pads.

• #17

Quote:
Unless has permanent magnets within, information technology volition non generate.
This is incorrect.
The residual magnetism in the armature starts the generating process.
The generated voltage supplies voltage and thus magnetic flux (field winding) to start the generating process.
The windings should exist put in parallel for this to produce the best results.

Besides, if you want to hack into the motor and separate the armature and field winding, you lot could supply a controllable field electric current to get a steady output voltage. Non applied though considering generators have college field winding resistances.
Kinarfi

• #xviii

Yous could connect the suction port to a desolder pump. Saves some work and is more than effective than the piston within the pump.

Plan for a bypass not to remove solder pads.

I'd advise adding a filter to grab the solder otherwise those tiny blobs of solder volition brusk the brushes out.

• #xix

I'd suggest adding a filter to catch the solder otherwise those tiny blobs of solder volition short the brushes out.

I did not know that the dirt and droppings went into the motor itself. You would remember if that were the case more motors would get damaged through normal usage.

• #20

No, the dirt and debris don't usually go through the motor but are collected in a bag or bedchamber before the motor.

Even so, he has a vacuum cleaner motor and connecting a solder sucker directly to the air inlet would suck the solder through the motor.

Condition

Not open for further replies.

Like threads

• Forums
• Electronics Forums
• Full general Electronics Conversation

• This site uses cookies to help personalise content, tailor your experience and to continue you logged in if you register.
  Past standing to apply this site, you are consenting to our utilise of cookies.

dileofortannige.blogspot.com

Source: https://www.electro-tech-online.com/threads/uses-for-old-vacuum-motor.96087/

Share this post