The main shaft coupling

A project log for WinDIY - HAWT Wind turbine

Mostly 3D printed HAWT windturbine incl. 3D printed disk-generator and brake system.

FabFab 07/13/2020 at 12:410 Comments

While I'm working on the adjustments for the pitch actuator, I thought it would be time to present how I imagine the coupling between the main shaft and the generator.

In principle, I didn't invent anything new here and was mostly inspired by the principle of well-known shaft couplings.

You can see the well-known principle in the following picture:

It consists of two parts that are firmly mounted on the respective shaft part and are inserted into each other. A rubber buffer inserted between them dampens any vibrations that may occur.

And here is my version of this type of coupling. I used cut pieces of a rubber mat as a damper. Unfortunately, it is very stiff. Maybe I will exchange this for a softer material. Otherwise, so far this principle seems to work well. :)