Anti-breakage electric chain hoist

Abstract

The invention discloses an anti-breakage electric chain hoist which comprises a tank body, wherein the tank body is internally provided with a motor, a chain wheel, a chain and a transmission mechanism. The anti-breakage electric chain hoist is characterized in that the chain wheel is arranged in the middle of the tank body; one side of the chain wheel is provided with the motor; the other side of the chain wheel is provided with a transmission case; a protective rope penetrates through the chain in an interference manner and is respectively fixedly arranged at two ends of the chain. The chain is provided with one protective rope used for preventing losses caused by article falling due to abrupt breakage of the chain; when the chain breaks abruptly, the protective rope arranged in an interference manner is tensioned so as to protect articles from falling off, furthermore, the tensioned protective rope triggers an alarm device, and the alarm device gives out an alarm, so that working personnel can deal with dangerous cases in time. The anti-breakage electric chain hoist has the advantages of simple structure, safety in use and the like.

Description

technical field [0001] The invention relates to an electric hoist, in particular to a breakage-proof chain electric hoist. Background technique [0002] Electric hoist is a kind of special lifting equipment, which is installed on the crane and gantry crane. The electric hoist has the characteristics of small size, light weight, simple operation and convenient use. It is used in industrial and mining enterprises, storage docks and other places. The electric hoist can lift heavy objects high or from one place to another, but during the lifting process, the objects move in space, and most electric hoists need to be hung on the beam, so a long rope is needed to pull the hoist. The hook moves up and down. Most of the existing electric hoists are pulled by steel ropes. The steel ropes are easy to expand and contract. When the steel ropes are pulled up, the excess steel ropes are wound around the outer ring of the drum. Poor, can not be applied to large-tonnage electric hoist; Sec...

AI Technical Summary

Problems solved by technology

The electric hoist can lift heavy objects high or from one place to another, but during the lifting process, the objects move in space, and most electric hoists need to be hung on the beam, so a long rope is needed to pull the hoist. The hook moves up and down. Most of the existing electric hoists are pulled by steel ropes. The steel ropes are easy to expand and contract. When the steel ropes are pulled up, the excess steel ropes are wound around the outer ring of the drum. Poor, unable to apply to large-tonnage electric hoists; Second, the excess steel rope is easy to cause entanglement when it is wound outside the drum

Therefore someone designs and adopts the chain to pull the hook, the chain strength is high, the load-bearing capacity is good, the gear teeth of the transmission gear drive the chain up and down, and the redundant chain falls into the bag containing the chain from the other side of the transmission gear when rising, but , the chains are all connected by links. After long-term use, a link may become loose, but it is difficult for people to find the looseness of the link, so it will cause certain safety hazards

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