How To Better Control The Accuracy Of Electric Actuators

How To Better Control The Accuracy Of Electric Actuators

Date:Jan 20, 2019

Learn about its operational considerations.

1. First find the vibration source, the oscillation caused by the external, should make the control valve away from the vibration source; eliminate or weaken the oscillation intensity of the vibration source; use the method of increasing the fulcrum to reduce the oscillation of the regulating valve. The oscillation caused by the flow of the inner media should try to reduce the resistance of the regulating valve. A bypass pipe can be added to adjust the conditions that are permitted by experience. For a quick response tanning system, a logarithmic special nature spool can be used. The butterfly valve tries its best to work within the range of 10~70°, avoiding the effect of the interfacial valve body.

2. The electric actuator brake does not work. The brake is used to eliminate the influence of the inertia of the rotor and the output shaft and the force of the load after the electric actuator is powered off, so that the output shaft is properly stopped at the corresponding position. If the brake does not work, the precision of the electric actuator will be reduced. Because this should do the following.

(1) According to the load volume, the whole braking torque;

(2) The clearance between the brake wheel and the brake disc should be adjusted properly;

(3) Brake brake shoes should have sufficient friction coefficient to prevent dripping oil (do not exceed the maximum position of the oil mark when filling lubricating oil).

3. There is a backward link in the output of the electric actuator. The main backward link exists in the connection part of the output shaft of the angular stroke electric actuator and the adjustment mechanism. Because of this, all the connecting rods and levers cannot be loosened or voided when installed. Try to use a dedicated coupling to replace the linkage. The pressure control system of the coke oven gas collection tube of our factory is considered suitable and a special coupling is used, which is satisfactory.

Previous: The Installation And Operation Methods Of The Electric Butterfly Valve

Next: Valve Electric Device Selection Basis And Characteristics