The shock absorption performance of electric butterfly valve shall be judged through the shock absorption test. The vibration reduction test is usually carried out only when the electric butterfly valve is newly designed and trial produced, and it is not necessary to test the electric butterfly valve one by one after mass production; It only needs to carry out the type test. However, for the electric butterfly valves that are particularly important or must be conditioned in the vibration reduction test to meet the skill requirements, they should be tested one by one.
The vibration reduction experiment should be carried out on the whole machine, so the experimental condition is the practical working condition; The vibration reduction experiment can also be carried out on a special vibration reduction test bench, that is, to simulate the practical working conditions, artificially make the vibration source, compare the difference between the electric butterfly valve without it and the electric butterfly valve installed in the future, so as to evaluate the quality of the electric butterfly valve. According to different situations, various excitation methods can be used to artificially produce vibration sources, such as using eccentric wheel to rotate and drive the slider to generate reciprocating displacement excitation, using centrifugal force generated by unbalanced rotor to excite, using compressed air blower to excite, using loudspeaker to excite, and using electromagnetic induction to excite.
As an important valve element, electric butterfly valves have been widely used in various machinery, automobiles, railway locomotives, water transport vehicles, aircraft and other aircraft. It can be said that the electric butterfly valve is required for the center where valves and isolation are required.
To improve the service life of drill bits and other drilling tools. It is understood that the electric butterfly valve is mainly used to absorb shock and vibration loads generated in drilling.