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LOW COST DC ACTUATOR

Discussion in 'Motor actuators and drivers' started by workfayer, Mar 11, 2022.

  1. workfayer

    workfayer New Member

    Joined:
    Jan 29, 2017
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    Brazil
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    My Motion Simulator:
    2DOF, 3DOF, Arduino
    Hello, first I thank those who took the time to open this topic to read, I appreciate even more who could help me with the doubts that are the following.
    I want to build a 4DOF more loss of traction the doubt and about the actuators I intend to use DC 24/12v motors and hall sensor, the doubt is how many NM do I need each actuator to have to lift the 4 together a load of 120kg?

    I did some basic math with this motor for example that has 0.3nm
    4800RPM
    160w power

    a spindle that has 30x reduction 4800/30=160Rpm
    30x0.3NM=9nm
    9nmx4=36nm ie the 4 actuators together would have 36nm theoretically these 36nm can lift how many kg on the platform?

    I don't know if these calculations are what I have to consider, if I'm wrong can someone show me the correct way?
    workfayer, Mar 11, 2022
    #1
  2. workfayer

    workfayer New Member

    Joined:
    Jan 29, 2017
    Messages:
    17
    Location:
    Brazil
    Balance:
    69Coins
    Ratings:
    +4 / 0 / -0
    My Motion Simulator:
    2DOF, 3DOF, Arduino
    Doing some research here I found out how to convert motor RPM into mm/min linear motion.
    The formula.
    P= 4mm P=spindle pitch in mm/min
    V=4800 V=Engine speed in RPM
    Vf=?? Vf= Speed in mm/min

    Formula (Vf=P*V)
    (Vf=4*4800)
    =19,200 mm/min
    being so and just divide the result by 60 to know that we have
    320mm/s

    The question now is how to convert the motor torque to linear movement of the spindle?
    Last edited: Mar 11, 2022
    workfayer, Mar 11, 2022
    #2
  3. superwhitewish

    superwhitewish Member

    Joined:
    Jul 3, 2016
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    Occupation:
    Avionic Engineer
    Location:
    Malaysia
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    225Coins
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    My Motion Simulator:
    2DOF, 3DOF, DC motor, Arduino, Motion platform
    Last edited by a moderator: May 24, 2022
    superwhitewish, May 24, 2022
    #3