What are the common failure situations of vacuum pump accessories? The editor has compiled some for you.
1. Wear and tear
Wear is a common failure mode of vacuum pump accessories. One is the frictional wear on the contact surfaces between components under lubricated conditions, which often occurs in gears, cylinder bodies, blades, rotor sliding bearings, and rolling bearings. This type of wear has a slow speed, and the wear failure is mainly related to lubrication and sealing conditions. Another type is wear caused by mutual friction between parts or material friction on the surface of parts under non lubricated conditions, which is particularly prominent in vacuum pumps. Such as couplings, belt pulleys for 2X pumps, double screws for screw vacuum pumps, and so on. This type of wear rate is much faster than the former, mainly related to the properties of metal materials and material properties. For oil vacuum pumps, wear during lubrication is particularly prominent, mostly due to deterioration of the vacuum pump oil and poor lubrication caused by foreign impurities.
2. Fatigue rupture
Fatigue is a failure mechanism, and cracking is a failure mode. They often end up causing the parts to break. This fatigue fracture failure process generally exists in gear teeth subjected to alternating loads. Commonly found in connecting bolts, anchor bolts, springs and other parts, it can also occur in important parts such as gear transmission shafts. There are many factors involved in fatigue fracture, and specific analysis is needed for the failed parts to identify the causes and take countermeasures.
3. Deformation
Deformation is also a common failure mode of vacuum pump components. Due to the high temperature generated by the pump during high-speed operation. Items such as shells and plates are often in a heated state and are most prone to occur. The gradual plastic deformation cannot restore the original geometric dimensions and shape of the components, and in severe cases, it will cause equipment failure. Such as sealing rings, oil seals, etc.
4. Corrosion
Corrosion is another mode of failure for vacuum pump components. Commonly found in vacuum pumps operating under complex process conditions such as PCBs and chemical engineering.
The above accessories are all fragile consumables, and they need to be replaced if any of the above situations occur. When the vacuum pump malfunctions, we need to investigate and handle it, determine that its accessories are faulty, and take corresponding solutions for the above problems. To prolong the service life of the device, it is necessary to regularly maintain and repair it to reduce the frequency of malfunctions.
