How big the motor need?

[Riton]

also need to calculate the speed of travel!
Ex:
16 Rpm with a 180 ° work, an inclination of 20 ° on the average

with 32/36 Rpm, this is a great up! the simulator becomes too violent.

[kubing]

riton:can you give me a spec of your motor?

[Riton]

16 Rpm 0.55Kw in 50Hz

for more ,You can see my post, and my youtube video

[motiondave]

Then again I suppose I like my sim a bit nasty.
All personal taste, that what makes our setups unique.

[kubing]

what about this
http://malaysia.rs-online.com/web/p/ac-geared-motors/0407710/

[Mertensbart20]

Hello guys,

Maybe you can follow our project:

viewtopic.php?f=37&t=335

I will be * soon with some pictues. We use 15rpm motors, 0.37kW SEW-motors, 151Nm. If you use 3-phase (400V) invertors with forced cooling on the motors you can get to a speed of 26RPM without losing torque.

Greetings,
Bart

[Riton]

I tried at 16 rpm, 50Hz. on my videos, I'm faster because I'm 70Hz on drives, look at the video, it is so fast that it becomes violent!
So I stayed at 60hz

if I compare with your electric motors 80 Rpm, I see that it is much less rapid and violent, I think the speed should fall due to the weight, I see a big difference ...
I find it hard to understand how my home with 16 rpm is already impressive

[vicpopo]

Hello guys,

Maybe you can follow our project:

viewtopic.php?f=37&t=335

I will be * soon with some pictues. We use 15rpm motors, 0.37kW SEW-motors, 151Nm. If you use 3-phase (400V) invertors with forced cooling on the motors you can get to a speed of 26RPM without losing torque.

Greetings,
Bart

Hi Mertensbart20,
I fully agree with you , the speed is important but the torque is almost important to move the charge!
Which inverter would you be use ? Sew movitrac (you talk about 400volts for tension phase).You project to supply the simulator with 3 phases or single phase?
Best Regards

[kubing]

thanks Mertensbart20 for your suggestion. your project look impressive. 0.37kw 15RPM ? i will use siemens micromaster 0.37kw 3phase 240 inverter btw. here is di picture ofmy inverter btw.

[Mertensbart20]

Hello kubing,

For the moment we are using two older monophase invertors (I'm not going to bother with the types since they are in on the market anymore). So we are limited at 50Hz. I have asked Siemens if we can borrow two G120 threephase invertors. As a school Siemens is more open to helping us with equipment. And we are planning to compete in some awards.

I'm not yet going to buy the G120 (the project is funded by myself and has already cost enough ). It could be that the monophase invertors are fast enough at 50Hz or that the load is small enough so we can go higher in frequency without the need of the G120's. And for the load, it is not the static load that is important but the dynamic load. With this I mean the motors have to have enough torque to move the load a high accelerations (minimum 20°/s for the platform).

I think you invertor is also monophase so you could have the same problem we have. Make sure to allow an overcurrent of 150% and buy motors that have a thermal safety. That thermal safety is usually a normally closed contact which opens when your motor gets to hot. You can use that signal for the invertor so it shuts down as soon as the motor gets to hot. And also use forced cooling. We are going to install 3 three computersfans to continually cool the motors.

As I said I will keep the project up to date but I will make a new post once we can start testing the motors. And since the students will have to do this it will take anothers 3 weeks I guess (unfortunately we don't have a lot of room in the timeschedules of school so everything moves slowly).

Greetings,
Bart