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KS_108975741-Visitor
1-Visitor
January 28, 2024
Question

Lead screw constraint problem

  • January 28, 2024
  • 1 reply
  • 868 views

Hello, I am designing a mechanism in which I want my Lead screw to rotate on its axis only.  fixed to one housing so that the lead screw does not transverse, I want the nut to translate but avoid rotation 

 

I already tried the cylinder connection but it is not working for my problem 

 

And if anybody suggests providing a generic gear connection please also describe the reason behind it I am not able to understand the reason behind providing a gear connection 

 

I am using Creo Parametric 

1 reply

tbraxton
22-Sapphire II
tbraxton22-Sapphire II
22-Sapphire II
January 28, 2024

The gear connection could be valid as it can be kinematically valid in describing the motion to the solver. Obviously, you must define the connection in a way that is consistent with the kinematics of your design. There is a relationship between the rotation of the lead screw and travel of component driven by the screw.

 

If you consider a rack and pinion mechanism (gear pair), you can create one which is the kinematic equivalent of the lead screw mechanism. It results in the same linear motion.

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