Need a torsion spring 100 NM at 45 degrees
Need a torsion spring 100 NM at 45 degrees
(OP)
Application is to protect an installation from abuse. The driveshaft will be connected to the external arm through a torsion spring. At 45 deg rotation of the arm we need at least 100 NM resistance. It would be great if we could allow 120 degrees arm rotation without killing the spring, at least for 50 times.
Space is somewhat limited -- maybe 12" length limit. Diameter has to be limited to 2" because the pivot point is close to the ground
Looking for a solution or suggestions.
Space is somewhat limited -- maybe 12" length limit. Diameter has to be limited to 2" because the pivot point is close to the ground
Looking for a solution or suggestions.





RE: Need a torsion spring 100 NM at 45 degrees
How many spring you need?
RE: Need a torsion spring 100 NM at 45 degrees
We will need a few hundred in the first year, then hopefully more. It is a volume, low cost product.
Does the quantity affect the conceptual solution?
RE: Need a torsion spring 100 NM at 45 degrees
RE: Need a torsion spring 100 NM at 45 degrees
RE: Need a torsion spring 100 NM at 45 degrees
RE: Need a torsion spring 100 NM at 45 degrees
RE: Need a torsion spring 100 NM at 45 degrees
RE: Need a torsion spring 100 NM at 45 degrees
It seems that the 120 degree is possible with the above mentioned points.
You didn't mention any environment (temp, corrosive, etc) requirements.
RE: Need a torsion spring 100 NM at 45 degrees
RE: Need a torsion spring 100 NM at 45 degrees
As you probably understood it is a non-standard custom designed spring. I don't believe you can find a standard off the shelf such a spring. To approach a spring designer or manufacturer you need to be able to clearly define the spring requirements, specifications and probably how it will be used/installed. Not all spring designers or manufacturer will be able to come with the solution. The design process is quite tricky and need some specific experience and expertise which is not common in the design process and manufacture of torsion spring design.
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