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　　Many people don’t know much about what a lifting pulley is, but when it comes to the circular wheel that guides the steel cable during hoisting operations, it is probably many people know what it is, that’s right! This equipment is called a lifting pulley.

　　The lifting pulley adopts a principle of pulleys. This principle has relevant knowledge in physics books in junior high and high school. Similar to the flag-raising ceremony, the pulley at the top of the flagpole can allow the five-star red flag to rise smoothly. This is also because of this, and it has more functions in addition to this.

Many people may think that the lifting operation has become more labor-saving due to the participation of lifting pulleys. Overall, this is true, but in the strict sense of the theory, it is not exactly like this. Because this involves three concepts: fixed pulley, moving pulley and pulley set.

　　In our common lifting operations, the lifting pulley adopts a large number of fixed pulleys. The fixed pulley mainly plays a guiding role in the entire transmission system, that is, it changes the direction of force. If you want to lift the target up, you only need to pull the rigging down. This method cannot save effort. The target weight is the best, and the force to be output.

　　The other way is to move the pulley. The moving pulley will move synchronously with the direction of pulling. That is to say, if you want to lift the target upward, you need to pull the sling upward. You cannot change the direction of force, but it reduces the output of force and has a certain labor-saving effect.

　　The pulley set in the hoisting operation has both fixed pulleys and moving pulleys in this transmission system. It is obvious that relying on this combination method, on the one hand, the direction of force is changed, and on the other hand, the magnitude of force is changed, thus achieving a good lifting effect.

　　These are the physics principles used by the lifting pulley during the practical operation, and it is precisely because we master these principles that make the lifting work of the lifting pulley safer and smoother.

　　Many people don’t know much about what a lifting pulley is, but when it comes to the circular wheel that guides the steel cable during hoisting operations, it is probably many people know what it is, that’s right! This equipment is called a lifting pulley.

　　The lifting pulley adopts a principle of pulleys. This principle has relevant knowledge in physics books in junior high and high school. Similar to the flag-raising ceremony, the pulley at the top of the flagpole can allow the five-star red flag to rise smoothly. This is also because of this, and it has more functions in addition to this.

Many people may think that the lifting operation has become more labor-saving due to the participation of lifting pulleys. Overall, this is true, but in the strict sense of the theory, it is not exactly like this. Because this involves three concepts: fixed pulley, moving pulley and pulley set.

　　In our common lifting operations, the lifting pulley adopts a large number of fixed pulleys. The fixed pulley mainly plays a guiding role in the entire transmission system, that is, it changes the direction of force. If you want to lift the target up, you only need to pull the rigging down. This method cannot save effort. The target weight is the best, and the force to be output.

　　The other way is to move the pulley. The moving pulley will move synchronously with the direction of pulling. That is to say, if you want to lift the target upward, you need to pull the sling upward. You cannot change the direction of force, but it reduces the output of force and has a certain labor-saving effect.

　　The pulley set in the hoisting operation has both fixed pulleys and moving pulleys in this transmission system. It is obvious that relying on this combination method, on the one hand, the direction of force is changed, and on the other hand, the magnitude of force is changed, thus achieving a good lifting effect.

　　These are the physics principles used by the lifting pulley during the practical operation, and it is precisely because we master these principles that make the lifting work of the lifting pulley safer and smoother.