For cement material with strong grinding cut, hard material particles enter into the gap between bucket elevator sleeve and the pin shaft, forms of particle abrasion and it is the main failure form for pin shaft and sleeve fatigue failure. The surface hardness of each part is the core factors for chain abrasion resistance level. Make sure the wear resistance as well as resistance to fatigue, must give attention to the surface hardness matching of sleeve, pin shaft and roller.
The chain pin shaft surface hardness shortage, poor wear resistance of chain bucket elevator conveyor will bring a lot of wear and tear and change the chain pitch, increase operation impact vibration, and deterioration chain operating mode, which is the the important reason for chain broken accident.
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