Vintage Manual Chain Hoist Restoration скачать в хорошем качестве

Vintage Manual Chain Hoist Restoration

More on Chain Hoists A manual chain hoist, also known as a fairy hoist or hand chain block, is a simple-to-use, easy-to-carry manual lifting equipment, also referred to as a “chain hoist” or “down the chain.” It is suitable for short-distance lifting small equipment and cargo, the weight is generally not more than 100 T. Chain hoists' shell material is high-quality steel, extremely resistant, high safety performance. When chain hoists lift weights upward, the chains are pulled clockwise chain bracelet wheel rotates counterclockwise when pulling hands to pull the chains down. The stopper is engaged with separate brakes, the ratchet pawl is still under the effect of the five teeth long long-axis lifting sprocket drive runs in the opposite direction, so that the weight steadily declines. Chain hoist, as an upgraded version of the fixed pulley, fully inherited the advantages of the fixed pulley while using a combination of reverse check brakes, reducer, and chain pulley block, symmetrical arrangement of two spur gears rotating structure, simple, durable, and efficient. Chain hoists hands by pulling the chain, the bracelet wheel rotation, the friction plate ratchet wheel, the brake pressure into one common rotating seat, the long axis of the tooth will be turning piece gear, and a minor axis spline hole gear. This means lifting the sprocket holes in the splines on the gear-driven lifting chains, lifting weights so smoothly. Using a one-way ratchet friction plate brake, brake in the load on its own, with the ratchet pawl engaging under the action of the spring brake safety. When chain hoists lift weights upward, the chains are pulled clockwise chains' bracelets wheel rotates counterclockwise when pulling hands to pull the chains down. The stopper is engaged with separate brakes, the ratchet pawl is still under the effect of the five teeth long long-axis lifting sprocket drive runs in the opposite direction, so that the weight steadily declines. Chain hoists generally use a one-way ratchet friction disc brake, brake in the load on their own, with the ratchet pawl engaging under the action of the spring, and the brake safety. It is safe, reliable, easy maintenance, high mechanical efficiency, bracelets pull small, lightweight, and portable, smaller size and beautiful appearance, durable, and suitable for factories, mines, construction sites, wharves, docks, and warehouses for installation of equipment, lifting goods, especially for open and no power supply, but also shows its superiority. Selection of main parts chain hoists steel materials, the use of chain 800 Mpa high-strength lifting chain, the material is generally 20M2, intermediate frequency quenching, low wear, corrosion of the chain; high-strength hook material is generally steel, forging playing style hook design ensures slow lifting to prevent overload; meet European CE safety standards. Manual chain hoists are mainly used in factories, mines, construction sites, wharves, docks, warehouses, and other places, for the installation of equipment, lifting goods, especially in open and no power supply, showing their superiority.