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Functional characteristics of chain hoists


When the chain hoist lifts the heavy object upwards, the manual chain is pulled clockwise and the manual wheel rotates, the friction plate ratchet and the brake seat are pressed together to rotate together, and the long axis of the teeth rotates the piece gear, the short axis of the teeth and the spline hole gear. Like this, the hoisting sprocket wheel that is installed on the spline hole gear just drives the hoisting chain, thereby lifts heavy object smoothly.

Pull the hand zipper chain counterclockwise when descending, the brake seat is separated from the brake pad, the ratchet is stationary under the action of the pawl, and the five-tooth long shaft drives the lifting sprocket to run in the opposite direction, thereby lowering the heavy object smoothly.

Chain hoists generally use a ratchet friction disc type one-way brake, which can brake automatically under load, and the pawl meshes with the ratchet under the action of a spring to make the brake work safely.

Chain hoists have the characteristics of safety and reliability, easy maintenance, high mechanical efficiency, small bracelet tension, light weight, easy to carry, beautiful appearance, small size, and durability. They are suitable for factories, mines, construction sites, docks, docks, warehouses, etc. It is used for installing machines and lifting goods, especially for open-air and no-power operations, which shows its superiority.

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