Input: blue shaft.
Output: green shaft rotating in the same direction of the input.
The output velocity depends on the input rotary direction.
Axial force of the helical gear drive moves the grey shaft.
Its is an application of the mechanism shown in:
https://youtu.be/J9kGUj8Nmzw
STEP files of this video:
http://www.mediafire.com/file/xycsr9r4vc2mvc6/AutoGearingWhenReversing1STEP.zip/file
Inventor files:
http://www.mediafire.com/file/46zzf8p69u3a6wa/AutoGearingWhenReversing1Inv.zip/file
آی-ویدئو