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KS_108975741-Visitor
1-Visitor
Jan 28, 2024 9:47 AM UTC
Question

Lead screw constraint problem

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
tbraxton22-Sapphire II
22-Sapphire II
Jan 28, 2024 1:30 PM UTC

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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