The Troubleshooting of electric valves

      Chinabase Machinery is a group of manufacturing facilities, offering one-stop solution for mechanical power transmission products in China. 

     Our product range also covers locking assemblies (clamping elements/locking device), taper bushes, QD bushes, bolt-on hubs, torque limiters, sprocket gear，shaft collars, timing chain，motor bases and motor slides, chain detachers, chain guides, universal joint, rod ends and yokes.

   China couplings manufacturer & exporter, we specialize in: chain couplings, Jaw couplings, flexible couplings, HRC couplings, NM couplings, MH couplings, Pin coupling, Spacer Coupling, Flange Coupling, Sleeve Coupling, nylon sleeve coupling.

     

    Troubleshooting

    Electric valve actuator is generally controlled by the electronicparts, the two part power part, so the electric valve actuator faultand common can be divided into the control part and power partfault fault two. Below we introduce dynamic analysis of common faults and causes and eliminating measures. Power electric valve actuators generally provided by the motor, therefore, master some motor knowledge is very necessary. So we can do as much as possible to discover and eliminate electric actuatormotor accident hidden danger, ensure the safe operation of the electric actuator and electric valve.

    Mechanical problems

    1 Motor sweep chamber: gap between the rotor and the stator,the motor is very small, easy to cause the fixed, between the rotorcollide. But the occurrence of frame, end cover, a rotor threedifferent axial phenomenon, will cause the rotor fixed, touching,sweep chamber is also often say. Factors common cause ofdifferent axial phenomenon: the motor bearing serious error, end盖内孔 wear, end cover check hole and the base hole wear deformation check. Such as the discovery of these phenomenashould replace the bearings, or on the end caps are replaced orbrush plating process.

timing belt pulleys

    2 The motor vibration: vibration should distinguish is the motoritself, or the transmission device of the poor, or mechanical loadtransfer over, then in the light of specific conditions wereexcluded. The vibration motor is caused by itself, the majority is due to the rotor dynamic balance is not good and bad, bearings,shaft bending, or end cover, a rotor axis, different, or motorinstallation foundation and uneven, the installation is not in place,resulting in loose fasteners. Vibration will produce noise, will generate additional load.

   3 The bearing is not working properly: if the bearing does not work properly, can be empirically using auditory and temperature to judge. Use to listen to the bar (bar) contact bearing box, if you hear the impact sound, says there may be one or a few ballcrushing, if you hear a hiss, that means lack of lubricating oilbearing. In the add grease is not easy too much, if too much willmake great friction and heat between the bearing rotating part andgrease, the general bearing box put grease is about 1/2 to 2/3 can be fully dissolved product. In the bearing installation if not correct,tolerance on fit too tight or too loose, it will cause the bearing heating.