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What Are The Mechanical Design Requirements For Electric Hoists?

By Author: Mahi Sheth
Total Articles: 3

An electric hoist is lifting equipment that is mounted on the gantry cranes, overhead, and Jib cranes. They are of small size, light-weighted, easy to operate and have simple features. The electric wire rope hoist find their usage in storage terminals, mining enterprises, industrial enterprises and so on.Their capacity ranges from 0.3 tons to 80 tons and has a lifting height of 3 to 30 meters. Motor, rolls, transmission are the components of an electric hoist. The electric hoists compactness and headroom availability are two factors, which are highly crucial in the selection of the hoist.

Let’s have a look at the mechanical design requirements that should be considered for the electric hoists-

1.Gear Train

For ensuring that the gear train operates smoothly and have a long life, the gear transmission should be getting done from accurate machine cut spur gears. The gears should positively run in an enclosed bath and should give splash lubrication to the gears and the bearing.

2.Bearings

All the gears, wheels, and shafts must be mounted on the roller bearings that are anti-friction. For hook block, thrust ball bearings must be used and for a wheel, spherical roller type bearings must be used.

3.Rope Drum

The rope drum should be made up of carbon steel and should have spiral grooves that should be suitable for the wire rope. Moreover, the rope drum should pass through the ultrasonic test.

4.Rope Guide

A rope guide that should encircle the complete drum should be provided in order to ensure that the rope should always be present at all times around the drum and should not get uncoiled on its own.

5.Wire Rope

A durable and flexible electric wire rope made of steel ensuring a long life should be used. Make sure that the wire rope has an appropriate safety factor.

6.Runner Wheels

The runner bills must be mounted on the ball bearings. The runner angles must be attached to the trolley drive assembly and should be adjusted as per the different joist sizes.

7.Frame

Since the frame supports the load, it shall have steel side and steel runner plates. The side plate should have an electrical control gear and a gear train attached to it. For oil sealing a gasket will be provided in between the side and the cover plate.

8.Lubrication

Both the bearings and the gears must run in oil bath. This ensures fast heat dissipation, smooth operation as well as longer life of the gears and bearings.

Get the Best Quality Electric Hoists

Looking forward to buying the best quality electric hoist for your industry? If yes, then nothing would be better than Ambica Engineering. It is one of the most trusted electric wire rope hoist manufacturers in India and serves the customers with the best quality products and solutions.

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