HEENAN WC 212/214
Heavy duty water cooled eddy current drive
The HEENAN 212/214 series drives and couplings are heavy duty water cooled units capable of providing high starting and running torques.
Thse units are ruggedly constructed for long performance in arduous
conditions, with four bearings for rotating parts and low-power DC
excitation coils. The units provide complete control of torque and speed
without harmful supply harmonics or RFI effects.
In operation, a smooth bore hollow input drum is driven at a fixed
speed by a prime mover (normally an AC industion motor). A multi-polar
output rotor is free to rotate within the drum, with a narrow radial gap
between the two. When the stationary low-power DC coil is excited with a
controllable level of DC current, a magnetic linkage is established
between the rotating members and torque is transmitted from the input drum
to the output rotor/shaft. Controlling the DC field current varies the
torque transmitted by the unit.
