LIMA Fish Feed Machine,Chicken Feed Machine
The centrifuge is designed to allow a certain processing error to make the vibration of the centrifuge within the normal range. However, if the user is improper, it will destroy this design balance, resulting in a serious accident. JCQ China Feed Industry Information Network – Based on Feed, Service Animal Husbandry
The rotor can be smoothly moved when the working speed of the centrifuge is not in the critical speed. A low speed centrifuge that is not high at work speed, generally improves the critical speed as much as possible, so that the centrifuge is operated below the critical speed. This axis of this centrifuge is very thick and the stiffness is large, called a rigid axis. When the speed is required to be high, the critical speed is minimized, and the shaft is fine, the stiffness is small, called the flexible axis, and the modern supervertefficient uses a flexible axis. JCQ China Feed Industry Information Network – Based on Feed, Service Animal Husbandry
The critical speed is related to the centrifuge and the use of the rotor. A centrifuge can be applied to several rotors, so the inclusion design of the centrifuge should be considered when designing the centrifuge. The centrifuge has a wide range of work ranges from thousands of rpm to tens of thousands of rpm, the higher the speed of the vibration of the centrifuge, the greater the danger. JCQ China Feed Industry Information Network – Based on Feed, Serving Animal Husbandry
Once vibration under high speed, the centrifuge should be immediately stopped with the fastest dropping speed, all personnel should Quickly leave the scene to avoid harm when there is an accident in the accident. Never power off, a power-off, the brake (fast drop) is not, the rotor is very slow. The accident is generally caused by improper operation of the centrifuge. If the rotor is not put on the spindle, the rotor’s cover is not covered, and the hanging basket that is opened and the basket is not put. The structure of this accident is accompanied by a huge sound, and a centrifuge at 300 ~ 400kg suddenly rotates more 270 degrees. The opening of the cover saw the rotor lying in the cavity, removing the rotor observed that the outer edge surface of the rotor was severely scratched, and the inner wall of the centrifugal cavity would be damaged, even refrigerant leakage. Sometimes the rotor and the rotor cover are separated, the liquid in the test tube is sprinkled in the cavity, the spindle is turned off or severely curved. Since this accident caused by improper operations, modern centrifuges generally have unbalanced protection. That is, once the centrifuge is started, once the vibration of the rotor is greater than a certain size, the centrifuge automatically speeds up the stop, and the centrifuge with this performance is sometimes missing, and it is not necessary to ensure that the accident cannot be ensured. JCQ China Feed Industry Information Network – Based on Feed, Service Animal Husbandry
Cromatic machine machining error and centrifuge installation error can cause the rotor’s centrifuge to deviate from the spindle of the centrifuge at different degrees, so Vibration is generated when the rotor is rotated, and these vibrations resonate at certain speeds of the centrifuge drive system, causing strong vibration of the entire system. The speed of this phenomenon is called the critical speed. JCQ China Feed Industry Information Network – Based on Feed, Service Animal Husbandry
RotorThe vibration is caused during high speed, but the flexible axis is ldquo; automatic calorie effect rdquo ;.The principle of which is that the rotor generates a disc effect when the rotor is rotated, and the elastic reaction when the flexible shaft is bent, and the rotor deviated from the spindle geometry center line back to the geometry center line of the spindle, and the vibration disappears.Of course, at this time, there is a certain limit of the imbalance in the rotor, exceeding the limit, the vibration does not disappear. JCQ China Feed Industry Information Network – Based on Feed, Service Animal Husbandry
