A running chain hoist operates based on mechanical principles involving power transmission, leverage, and pulley systems to lift and move heavy loads. Here's a breakdown of its working principle:

Power Source and Transmission:

The chain hoist is typically powered by an electric motor or a manual hand chain mechanism. In electric models, the motor drives a reduction gear system, which reduces the motor's high-speed rotation to a lower speed with higher torque.

This torque is then transmitted to the sprocket that engages with the load chain.

Leverage and Pulley System:

The chain hoist utilizes a system of sprockets and chains to amplify the force applied. When the operator pulls the hand chain or the electric motor rotates, it drives the sprocket, which in turn moves the load chain.

The sprocket and chain arrangement act as a pulley system, reducing the amount of force required to lift a heavy load. The mechanical advantage gained from this system allows a relatively small input force to lift a much larger load.

Load Lifting and Lowering:

As the load chain is pulled through the hoist by the sprocket, it lifts the load attached to the lower hook. The design of the chain hoist ensures that the load is evenly distributed and lifted smoothly.

To lower the load, the operator releases the hand chain slightly (in manual models) or the motor reverses its direction (in electric models), allowing the load chain to unwind and the load to descend.

Braking and Safety Mechanisms:

Chain hoists are equipped with braking systems to prevent the load from descending uncontrollably. These brakes can be mechanical, electromagnetic, or a combination of both.

Safety mechanisms, such as overload protection devices, are also incorporated to prevent the hoist from being used beyond its rated capacity, thereby avoiding damage to the hoist and potential accidents.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment