Mini Pulley
Ever-Power Group
A pulley is a small wheel with a groove around it and can rotate around the shaft. A simple machine that can rotate around the central axis is called a pulley, which is composed of a grooved disc that can rotate around the central axis and a flexible cable that can cross the disc.
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Basic information of pulley
Definition 1
when using pulley, the pulley whose axis position moves with the object being pulled is called moving pulley.
Definition 2
if the weight is directly hung on the pulley, the pulley also rises when lifting the weight, such a pulley is called the pulley
Texture of material
Wood pulley, steel pulley and engineering plastic pulley can be made of various materials according to actual use requirements.
Connection method
Hook type, chain type, wheel material type, ring type and chain type, cable-stayed type, etc.
“In mechanics, a typical pulley is a round wheel that can rotate around a central axis. There is a groove on the circular surface of the round wheel, and the rope is wound in the groove. If either end of the rope is pulled by force, the friction between the rope and the round wheel will make the round wheel rotate around the central axis.”
Pulley differentiation
According to whether the central axis of the pulley moves or not, the pulley can be divided into “fixed pulley” and “movable pulley”; the central axis of the fixed pulley is fixed, while the central axis of the movable pulley can move, each with its own advantages and disadvantages. The fixed pulley and movable pulley can be assembled together to form a pulley block, which not only saves labor, but also can change the direction of force.
Pulley & Features
Classification, Number
Fixed pulley, movable pulley and pulley block (or divided into single pulley, double pulley, three pulley, four pulley and even multi pulley).
Effect
Pull the load, change the direction of force application, transmit power, etc.
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