Accessories for Couplings and Clutches

For PNEUMAFLEX and PNEUMASTAR clutches, the Electro Pneumatic Remote Control Device PFA 8600 serves to adjust the engaging time and trigger alarm in the event of compressed air failure. If the standard solenoid valves have been actuated by external interlocking devices, the remote control device automatically disengages the clutch or blocks its engagement. Furthermore, the device serves to control the automatic changeover from engaging air pressure to operating air pressure as well as the automatic disengagement of the clutch if the clutching air pressure falls below the level required for slip-free torque transmission.

The Electronic Alternating Angle Measuring Device FA serves to monitor excessive torques resulting from torsional vibrations. The device measures and monitors alternating angles superimposed on the nominal angle of twist in highly torsionally elastic SPIROFLEX and PNEUMAFLEX couplings respectively clutches. Measurement parameter is the changing angle of twist between the primary and secondary part of highly elastic rubber elements of the coupling. The measuring device is maintenance-free, operates contact-free and does not suffer mechanical wear. To ensure a high degree of functional reliability this monitoring system is equipped with integrated circuits.

The Electronic Slippage Monitoring Device CA indicates on PNEUMAFLEX and PNEUMASTAR clutches inadmissible clutch slippage. The monitoring function of the unit is based on measuring the speed difference arising between the primary and secondary part of the clutch. Thus the maintenance-free and contact-free monitoring unit offers additional safety to prevent damage due to overloading.

The Electronic Engaging Blockade Device EEB is an independent monitoring unit for clutches. It prevents PNEUMAFLEX and PNEUMASTAR clutches from being destroyed in the event the secondary side of a propulsion system is blocked by external influence. During engagement the primary and secondary speed rates are compared within a selectable time span. Measurement is taken in a contactless manner via pulse encoder. Initiating the engagement of the clutch is governed by monitoring the secondary side speed rate. The electronic components are maintenance-free and do not suffer mechanical wear.