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Question different motos ? swapout possible ?

Discussion in 'DIY Motion Simulator Projects' started by sci666, Feb 7, 2023.

  1. sci666

    sci666 Active Member Gold Contributor

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    My Motion Simulator:
    DC motor, Arduino, Motion platform, 6DOF
    i have a question regarding to the motors in general.

    i have rv30 wormgears with 50:1 ratio.
    at the moment Motor with 24V - 120 watt and 1800rpm

    wattage should be clear... more watt = more power :)
    theres some alternatives with the RPM ... whats the difference with the 1800 and 3000 rpm motors ?

    does it make a difference to put on a 3000rpm motor ? - is it just faster with it or is it not worth it because the wormgear wore out faster ? or is more = better in any case ?
    sci666, Feb 7, 2023
    #1
  2. zapata_h

    zapata_h Active Member

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    The difference between a 1500 rpm motor and a 3000 rpm motor is that the rpm at the output shaft will be affected depending on the motor you use.
    zapata_h, Feb 9, 2023
    #2
  3. sci666

    sci666 Active Member Gold Contributor

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    i think that is clear ;D so it just increases the speed of the rotation of the worm gears ? or is the resistance of the gears and the lever forces so high that it is not really faster in the end ? i mean what is the best to choose ? more rpm or just more watt ? or more watt and more rpm ?! .... :D thanks
    sci666, Feb 10, 2023
    #3
  4. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
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    Have a play with SimCalc to help get your head around the tradeoffs in design, motor speed and torque Vs physics: https://www.xsimulator.net/communit...e-linear-speed-and-forces-of-your-design.270/
    • Like Like x 1
    noorbeast, Feb 10, 2023
    #4
  5. zapata_h

    zapata_h Active Member

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    You must do the calculations to know how much force the lever can exert, you must know engine power, rpm, and speed ratio of the reducer
    zapata_h, Feb 10, 2023
    #5
  6. zapata_h

    zapata_h Active Member

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    Torque is a turning force whose units are kilograms – meter, pound – foot, pound – inch or Newton – meter.

    This torque or couple mixed with a time of realization, application or execution becomes power:

    An electric motor has a certain amount of horsepower - horsepower - and has a certain operating speed at which the output shaft rotates.

    Both speed and power come with a certain torque or torque that can be released by the motor.

    The higher the torque, the greater the load that we can rotate, therefore, the torque will depend on whether or not we can rotate a certain load.

    Instead, the speed with which we can turn that load will depend on the power of the geared motor.

    The combination of power, torque and speed in a motor or gearmotor is articulated under the following formula:

    TORQUE (in kg-m) = Power (in HP) x 716 / Speed of rotation of the shaft of the motor or reducer (rpm)

    RPM = number of turns of the shaft per minute

    T= HP 716/RPM in kg-m



    That is why for a given power, the lower the final speed of rotation of the gearmotor shaft, the higher the torque will be even though the power remains the same. And the higher the final speed of the reducer or gearmotor, the lower the torque even when the power is the same.

    If we know what torque we need to move the load and at what turning speed the work we require is done properly, we can calculate the necessary gearmotor and motor power.
    • Like Like x 1
    zapata_h, Feb 10, 2023
    #6