• Welcome to engineeringclicks.com

    • Hand fed machine rotating knob question

    Discussion in 'The main mechanical design forum' started by mohamed.elsabagh, Dec 23, 2011.

    Page 1 of 2
    1. mohamed.elsabagh

      mohamed.elsabagh Member

      Joined:
      Dec 2011
      Posts:
      18
      Likes Received:
      0
      I understand that I can use ball screw driver with a motor shaft but it's not desirable with hand fed machines. My purpose is to design a manual knob which when rotates clockwise or anti-clock wise it moves a vertical rod up or down. what should I use??
       
      mohamed.elsabagh, Dec 23, 2011
      mohamed.elsabagh, Dec 23, 2011
      #1
    2.  
    3. Dana

      Dana Well-Known Member

      Joined:
      Sep 2010
      Posts:
      368
      Likes Received:
      3
      What is a "hadfed machine"?
       
      Dana, Jan 3, 2012
      Dana, Jan 3, 2012
      #2
    4. GarethW

      GarethW Chief Clicker Staff Member

      Joined:
      Jul 2009
      Posts:
      1,429
      Likes Received:
      5
      Perhaps a typo for "hand fed" (i.e. manual)?
       
      GarethW, Jan 3, 2012
      GarethW, Jan 3, 2012
      #3
    5. other

      other Member

      Joined:
      Dec 2011
      Posts:
      22
      Likes Received:
      0
      bolt and nut can do the same as ball screw, can it work?
       
      other, Jan 5, 2012
      other, Jan 5, 2012
      #4
    6. ranjan.ajm

      ranjan.ajm New Member

      Joined:
      Jan 2012
      Posts:
      2
      Likes Received:
      0
      Screw and nut can be used

      Screw and nut can be used as you are using knob to rotate the screw. The ball screw will be reversible, i mean when ball screw is used friction will be very low and your slide may not stay on position you want.
       
      ranjan.ajm, Jan 6, 2012
      ranjan.ajm, Jan 6, 2012
      #5
    7. cct3000

      cct3000 Member

      Joined:
      Mar 2011
      Posts:
      7
      Likes Received:
      0
      may be typing mistake you mean "hand fed" ?
       
      cct3000, Jan 6, 2012
      cct3000, Jan 6, 2012
      #6
    8. cct3000

      cct3000 Member

      Joined:
      Mar 2011
      Posts:
      7
      Likes Received:
      0
      hand fed mechanism by hand

      A Trapezoidal thread of bolt and nut may suit your application of vertical up and down motion, especially if you want to be done by hand. thread selection --> http://en.wikipedia.org/wiki/Acme_thread_form
       
      cct3000, Jan 6, 2012
      cct3000, Jan 6, 2012
      #7
    9. mohamed.elsabagh

      mohamed.elsabagh Member

      Joined:
      Dec 2011
      Posts:
      18
      Likes Received:
      0
      I mean handfed sure I am sorry
       
      mohamed.elsabagh, Jan 7, 2012
      mohamed.elsabagh, Jan 7, 2012
      #8
    10. GarethW

      GarethW Chief Clicker Staff Member

      Joined:
      Jul 2009
      Posts:
      1,429
      Likes Received:
      5
      OK - I changed the thread title so things make a bit more sense. :)
       
      GarethW, Jan 8, 2012
      GarethW, Jan 8, 2012
      #9
    11. cct3000

      cct3000 Member

      Joined:
      Mar 2011
      Posts:
      7
      Likes Received:
      0
      DryLin® - Trapezoidal leadscrew nut

      igus have a product can be refer to , you can make it by using hand driven . see the movie in the link you will get the idea.

      the [h=2]DryLin® - Trapezoidal leadscrew nut also can purchase and make your own vertical motion mechanism[/h]
      hope this will help

      http://www.igus.com.my/wpck/default.aspx?pagename=drylin_trapezgewindemutter
       
      cct3000, Jan 8, 2012
      cct3000, Jan 8, 2012
      #10
    Page 1 of 2

    Share This Page

    ▲