Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!
Gearmotor Clutch to protect output gear
- Thread starter plasgears
- Start date
- Thread starter
- #2
diamondjim
Mechanical
Why not put a limit switch on the
output of the motor? Is it hydraulic,
electric or ? I think this would be
a cheaper solution.
output of the motor? Is it hydraulic,
electric or ? I think this would be
a cheaper solution.
- Thread starter
- #4
My preference is limit switches in this electrical actuator, but the customer sometimes dictates the config. Another approach is a current limiter, which creates high resistance at overload. Upon removing the voltage, the current limiter quickly resets. The current limiter is not an option here because there is one already: slow acting and rated at high current.
- Thread starter
- #5
The following designs went to production:
- Gear on shaft with collar; belleville spring behind it with adj nut. A little complex but compact.
- A one way ratchet clutch made from plastic. The tapered fingers were acetal. A two way clutch could be made the same way by changing 90 deg stops to 45 deg.
- USA Tolerance Rings (dot com) is showing a tolerance ring for limited slip gears on shafts. The mfr says that it has to be developed on an individual basis.
Any other ideas for simple clutches?
- Gear on shaft with collar; belleville spring behind it with adj nut. A little complex but compact.
- A one way ratchet clutch made from plastic. The tapered fingers were acetal. A two way clutch could be made the same way by changing 90 deg stops to 45 deg.
- USA Tolerance Rings (dot com) is showing a tolerance ring for limited slip gears on shafts. The mfr says that it has to be developed on an individual basis.
Any other ideas for simple clutches?
- Status
