| How to maintain the electric chain hoist?
The electric chain hoist is a kind of light and small lifting equipment. It is now widely used in ports, construction, anti-corrosion, petroleum, chemical, steel, metallurgy, mining and other places,
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Nov 18, 2019
The electric chain hoist is a kind of light and small lifting equipment. It is now widely used in ports, construction, anti-corrosion, petroleum, chemical, steel, metallurgy, mining and other places, so the chain electric hoist will inevitably have problems in use. For example, if the abnormal situation occurs in the electric chain hoist gear, what is the cause? Let's take a look at it.
(1) Tooth surface wear
The form of tooth surface wear is mainly based on corrosion wear and abrasive wear. Corrosive wear is a chemical effect of the active material in the gear material and the lubricant, resulting in damage to the gear.
(2) Tooth surface plastic deformation
Plastic deformation means that the gear surface of the gear is in a concentrated state, and the gear material is subjected to an external force in the yield state, thereby causing a plastic change in the tooth body or the tooth surface. Plastic deformation is one of the main failure modes of the gear, and it is also a kind of permanent deformation of the gear.
(3) Root crack
Due to the internal non-uniformity of the gear material, even when the force is suitable, fatigue cracks may occur at the root of the partial gear, and then it may expand into a full-tooth fracture.
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