How does a tapping head reverse direction?

[Cactus Farmer]

Anyone have one apart? I just want to know how it changes direction. Pictures are great but a description will work too.

 

[Ulma Doctor]

Anyone have one apart? I just want to know how it changes direction. Pictures are great but a description will work too.

i don't have one apart but i did find a link for one

https://www.google.com/search?tbm=i...a=X&ei=27r-UsWbKMX9oATk7oG4Aw&ved=0CCMQwg4oAA


they work through a clutch action that reverses the rotational direction when the tap bottoms out or comes to predetermined torque

 

[uncle harry]

I was gifted a Procunier with a a # 2 Jacobs taper. I went online & found a manual PDF which shows how to maintain & repair it. They use 2 cone clutches and a planetary gear system. The clutches appear to be significantly tapered and produce a good tactile feel when tapping, When the tapping is accomplished, retracting disengages from the tapping cone clutch and engages the reversing clutch. The planetary action speeds up the reverse rpm making tapping operations faster. The clutch/gearbox assembly runs in oil. Hope this helps.