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  1. 1 point
    Hi everyone, I am an electrical enginner with very little knowledge about the usage of gears and how to calculate the torque and gear ratio, so I am looking for help here. I have the following problem at work. A long circular tube (3 meters) is placed vertically and inside it about 30 cm from the top openning there is a half of a disc attached to a metal rode. I want to rotate the semicircle precisely with a stepper motor, the idea is to have a gear placed at the shaft of the motor, which rotates a bigger gear, which the semicircle is attached to by a rode. The picture I uploaded illustrates the setup of the motor and gears I want to use. Just try to imagine a rode being attached to the bigger gear and at the end of the rode there is a semicircle. Now the real question, the semicircle with the rode weigh about 500 grams, I have no idea how to choose the right torque for the motor and how to calculate the number of teeth and size of the gears I want to use to be able to rotate the object. Thanks in advance
  2. 1 point
    Gaurav Jani

    Books required

    Hope it will help..... UPDATED mechanical all subjects ebooks-1.pdf
  3. 1 point
    Kabilan Kamaraj

    Official Web Address

    Hi, Hello friends, https://kabilmech.wordpress.com This is my offical website. I have atatched a pdf which contails all mechanical bookds please take a overview and plesae like and leave yoyur comment in my likned in page.. Thank you Best Regards.
  4. 1 point
    super bro....thank you so much
  5. 1 point
    Wow thanks mate!
  6. 1 point
    Kabilan Kamaraj

    Books required

    hi, Its ok...anyway thank you for your valuable reply... Best regards.
  7. 1 point
    Esat Aykurt

    CAD CAM ENGINEER

    Hi friends, I am a SolidCAM training expert and thecnical support engineer. I know intermediate level post prosses. I can help you about SolidWorks and SolidCAM software.
  8. 1 point
    rshirsagar5

    CAD CAM ENGINEER

    Which Are The Top Websites That Every Mechanical Engineer Should Know ? Please let me know.
  9. 1 point
    Bhupinder.singh003

    want to learn cad cam

    Go to you tube and learn solidworks
  10. 1 point
    Hi.. Greetings to all.. While I respect, all the three of you, yes, the answers from all the three of you are right, but partly. You need a bigger tire, just because, the tractor is operated in wet sludgy crop fields, where your normal size tire cannot work since, normal tire will simply keep spinning without any plough action. In technical terms, the need for bigger rear wheel in tractor is not just one , but many.. they are 1. The Broader, bigger wheel with a Thick Lug Pattern in the Tires will help for a very good contact pattern with the surface, in this case, mostly the crop fields are expected to be wet and slippery. Hence, Bigger broader wheel for better contact with the ground surface, which will inturn enable the tractor to plough the field better. In contrast, the Front wheels are made small , comparatively slim and only intermittent rib pattern in the tires, this will help for ease of steering even in wet sludgy surfaces. 2.Most importantly, the bigger wheel enables, addition of Dead Weights on its Rim Plate, (hope u have seen the rear wheels with dead weights), these deadweights are added for higher grip with the wet sludgy field where the tractor is operated. 3.Higher Ground Clearance : As DrD pointed out, Higher ground clearance is achieved with a bigger wheel, so as to pass over the plants in the field. 4.Regarding Torque / other info... its very simple, dont get too complicated. The bigger the Tire, more is the torque need to rotate the tires, which means, you will need bigger engines, inturn, there will be higher fuel consumption and the cost of tractor becomes heavy. So, from a design perspective, no tractor is designed to intentionally make them big, unless there is a need for it. As such, the Torque of the engine being a reason for the big size tire is ruled out.
  11. 1 point
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