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  • Motor torque calculation.

    Discussion in 'Calculations' started by Udaya, Jun 15, 2015.

    1. Udaya

      Udaya New Member

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      Hello,
      I need to calculate the torque requirement for a mechanism like attached image.
      Weight of mounted object is 200Kg.
      Weight of the beam is 50Kg.
      Length from motor axis to mounted object center 1500mm.
      [​IMG]

      Any body can help me in this calculation?.
      I'm happy to learn the calculation method step by step.
      Thank you.
      Udaya.
       
      Last edited: Jun 15, 2015
    2.  
    3. Erich

      Erich Well-Known Member

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      It is not clear exactly what your drawing represents. Please describe how this device moves. What torque do you need to calculate?

      How is this device supported. As drawn it is floating in air. I don't know which parts are fixed together, fixed to the earth or move with respect to each other.
       
    4. Udaya

      Udaya New Member

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      Hello Erich,
      Thank you very much for helping me. Here i have attached plane view of the drawing which i need to calculate.
      In this the motor is the fixed component and structural member (50Kg item) which attached a weight (200 Kg) is rotate together around the motor axis.The movement need rotate 90 degree around motor axis with in 4 seconds.Rotating direction is shows in black color arrow.[​IMG]
      Thank you very much again.
      Udaya.
       
    5. Erich

      Erich Well-Known Member

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      Is the item rotating continuously? Do you need the torque to accelerate from a stop.

      Is the axis of rotation vertical as shown in your first picture?

      This system is terribly unbalanced. This will cause large fluctuating loads on the motor shaft, bearings and mounting points.
      Not good at all.
       

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