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Air compressor connecting rod repair method
Aug 14 , 2024

The air compressor connecting rod is a key component that bears the piston thrust and transmits it to the crankshaft. Its repair is extremely important. The following measures can be taken to repair the air compressor connecting rod:

1.Check whether the connecting rod bearing, connecting rod bushing, main bearing bearing are worn, pulled or burned, and whether the connecting rod bolts are loose. If worn or loose, replace the severely worn parts and tighten the connecting rod bolts to the standard torque (for example, 35~40N.m). At the same time, ensure that the main oil channel is unobstructed and unblocked.

2.Material selection: The connecting rod material is usually 35#, 40#, 45# high-quality carbon structural steel, and ductile iron and malleable cast iron can also be selected. Aluminum alloy connecting rods are also widely used in small piston air compressors due to their low density.

3.Structural optimization: Based on finite element analysis, the stress distribution of the connecting rod under tension and compression loads is analyzed, and the geometric structure dimensions of the connecting rod are optimized based on the results. This can reduce the mass of the connecting rod and improve its reliability.

4.Modal analysis: Through modal analysis, the vibration characteristics of the connecting rod are understood, and the areas that may cause high resonant frequency and vibration amplitude are identified. Based on this, the connecting rod structure is optimized or improved to reduce vibration damage.

5.Lubrication and maintenance: Ensure that the connecting rod parts are properly lubricated, regularly check the oil quality and impurity content of the lubricating oil, and replace the lubricating oil when necessary to reduce abnormal noise caused by metal friction.

6.Inspection and replacement of bolts: Connecting rod bolts are key components that bear heavy loads. They need to be regularly inspected for fatigue resistance. Once damage or fatigue signs are found, they should be replaced immediately.

Through the above measures, the connecting rod of the air compressor can be effectively repaired and maintained to ensure the stable operation and long life of the air compressor.

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