Introduction to the use of pulleys

A pulley block is a simple mechanical device. In a pulley block, it can easily change the direction of force, and during use, its effort saving is usually determined by the number of strands of the rope. The mechanical efficiency of the pulley block is determined by the gravity, friction and gravity of the object being pulled.

Pulley blocks are used in many places, such as:

(1) Port loading and unloading (2) Pulleys (3) Metallurgical machinery (4) Hoisting and transportation (5) Mining machinery (6) Shipbuilding