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October 13, 2022
Piston Air Compressor Is Easy To Fault And Analysis
The cause of air compressor failure is multi-faceted, and should be determined according to the site conditions and failure mechanism analysis. The troubleshooting method for each fault is not necessarily unique. It should be based on actual conditions, comprehensive comparison, and take effective measures.
The crankshaft fractures the crankshaft to break. The crankshaft fracture is mostly at the rounded corner transition between the journal and the crank arm.
1. Analysis of the cause
(1) Cracks are generated at the oil hole of the crankshaft, and the penetration of the lubricating oil causes the crack to gradually expand, eventually causing the fracture.
(2) The crankshaft transition fillet is too small. When heat treatment, the rounded corners are not treated in place, resulting in stress concentration at the junction.(5) The crankshaft fillet is irregularly machined, the radius is not equal, and the stress is concentrated due to excessive unevenness.
2. Treatment measures
(1) Strictly control the processing technology and quality of the crankshaft oil hole to prevent cracks, and remove the burrs in time after processing.
(2) Properly increase the crankshaft transition fillet to maintain uniform heat treatment and eliminate stress concentration.(3) The clearance between the cylinder and the piston is too small, or the metal piece and other hard objects fall into the cylinder, and the piston hits the cylinder head and is blocked.
2. Treatment measures.
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