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A brief analysis of the working principles of crane pulleys and hook pulleys: The pulley is a small wheel with grooves around it and can rotate around an axis. A simple machine that can rotate around a central axis, consisting of a grooved disc that can rotate around a central axis and a flexible cable (rope, tape, steel cable, chain, etc.) that spans the disc, is called a pulley.
The pulley is a deformed lever, which is a simple lever machine and has a wide range of uses. The pulley with a fixed central axis is called a fixed pulley, which is a deformed equal-arm lever that does not save effort but can change the direction of the force. The pulley whose central axis moves together with the weight is called a movable pulley. It is a deformed unequal arm lever that can save half the force but does not change the direction of the force. In practice, a certain number of movable pulleys and fixed pulleys are often combined into various forms of pulley blocks. The pulley block saves effort and can change the direction of force. The differential pulley (commonly known as a hand chain hoist) commonly used in factories is also a pulley block.
Pulley blocks are widely used in cranes, hoists, lifts and other machinery.
Usage: Fixed pulley, movable pulley and pulley set composed of movable and fixed pulleys;
Number: single pulley, double pulley, three pulley, four pulley or even multiple pulleys;
Function: guide pulley, balance pulley; connection method: hook type, chain ring type, lifting ring type and hanging chain type.
The pulley block is made up of several fixed pulleys and movable pulleys, which can save labor and change the direction of force action. During use, the amount of effort saved and the method of winding the rope depend on the effectiveness of the pulley block. The movable pulley is borne by two ropes, that is, each rope bears a fraction of the total weight of the object and the movable pulley. Generally speaking, two ropes are equipped with a movable pulley, and a movable pulley is usually equipped with a fixed pulley. When the direction of the force does not need to be changed, a fixed pulley can be added to the even-numbered rope section; to change the direction of the force, a fixed pulley needs to be added.
Please feel free to contactus Parts Sea engineers or sales for help if you have no parts No.
tse@partssea.com | sales@partssea.com
A brief analysis of the working principles of crane pulleys and hook pulleys: The pulley is a small wheel with grooves around it and can rotate around an axis. A simple machine that can rotate around a central axis, consisting of a grooved disc that can rotate around a central axis and a flexible cable (rope, tape, steel cable, chain, etc.) that spans the disc, is called a pulley.
The pulley is a deformed lever, which is a simple lever machine and has a wide range of uses. The pulley with a fixed central axis is called a fixed pulley, which is a deformed equal-arm lever that does not save effort but can change the direction of the force. The pulley whose central axis moves together with the weight is called a movable pulley. It is a deformed unequal arm lever that can save half the force but does not change the direction of the force. In practice, a certain number of movable pulleys and fixed pulleys are often combined into various forms of pulley blocks. The pulley block saves effort and can change the direction of force. The differential pulley (commonly known as a hand chain hoist) commonly used in factories is also a pulley block.
Pulley blocks are widely used in cranes, hoists, lifts and other machinery.
Usage: Fixed pulley, movable pulley and pulley set composed of movable and fixed pulleys;
Number: single pulley, double pulley, three pulley, four pulley or even multiple pulleys;
Function: guide pulley, balance pulley; connection method: hook type, chain ring type, lifting ring type and hanging chain type.
The pulley block is made up of several fixed pulleys and movable pulleys, which can save labor and change the direction of force action. During use, the amount of effort saved and the method of winding the rope depend on the effectiveness of the pulley block. The movable pulley is borne by two ropes, that is, each rope bears a fraction of the total weight of the object and the movable pulley. Generally speaking, two ropes are equipped with a movable pulley, and a movable pulley is usually equipped with a fixed pulley. When the direction of the force does not need to be changed, a fixed pulley can be added to the even-numbered rope section; to change the direction of the force, a fixed pulley needs to be added.