Hand chain hoist for easy lifting of goods

Hand chain hoist is a mechanical device used for lifting various heavy loads, equipment and all kinds of objects. It consists of 2 chains, and if you pull one, then the other raises the load. The current produced by the force increases the rate of ascent by a factor of thirty.

How does the power of manual hoists increase?

The mechanism of action is quite simple. The hand chain hoist works by the principle of converting light effort, which is attached to the drive chain, into an incredible force by which the loads are lifted.

What does manual talism consist of?

The design includes:

• Drive wheel;
• Drive chain;
• Gears;
• drive shaft;
• Lifting chain;
• Wheel of a chain.

The chain hoist itself is suspended directly above the load, which must be lifted, using a special hook. The chain is attached directly to the load. If you pull the drive chain, the wheel turns the drive shaft that drives the gears. At the same time, it is possible to lift the load from the other end of the mechanism.

How do the gears concentrate the force that enters the wheel of the chain?

The drive chain is attached to the drive wheel in special segments, the number of which is 7. At the moment we pull the chain, it turns it. The wheel is screwed close to the friction plate attached to the ratchet. At the moment when the whole of the three-component system is turning, the latch gets directly into the ratchet teeth, while not allowing the wheel to spin in the opposite direction under the weight of the load.

Also, considering how the manual chain hoist works, it is worth noting that the drive wheel is attached to the drive shaft. The rotation of the first part activates the second. On the opposite end of the shaft is a small gear with five teeth. If it turns, the force that is transmitted through the drive wheel with the help of the drive chain increases many times. Consequently, it increases in a ratio of seven to five.

A cogged small pinion drives simultaneously two other large gear wheels. Thus, the driving force of a small gear is distributed proportionally by another 2. Thus, only five prongs operate at once thirty-two. Behind each of the large wheels is another small wheel with 4 teeth, it increases the power of the system in the ratio of eighteen to four. The final element of the design is another large gear with nineteen teeth, concentrating all the force on the links of the load chain, which is attached to the drive wheel. Thus, the force that can be produced by hand chain hoists (3 tons in particular) increases thirty times.

This is an incredibly simple mechanism, consisting of several gears and two chains. Hand chain hoist (1t it rises easily) increases strength by transforming effortless effort that is available to many people.