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PULLEYS, fix-pulley, movable-pulley, 1968e3e81bb037d850750d91ddd1cfea,…
PULLEYS
Pulley trains with belts
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Pulleys 2 and 3, attached to the same axle, rotate at the same velocity
The motion of pulley 3 is transmitted to pullev 4 via the belt that
connects them All the pulleys rotate in the same direction
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types
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Compound
This is a set of fixed and moveable pulleys, often called a block and tackle if we use more pulleys it becomes more complex, but less effort is needed to move the load
Fixed
A fixed pulley is a wheel that has a groove for a rope, cham or belt to go round lt. It rotates around an axle that ls fixed to an immobile surface.
Friction drive
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Wheel 1 is called the primary drive wheel. When it moves,
, it turns or drives the output wheel 2 causing it as well
The output wheel rotates in the opposite direction to the primary wheel. If we use more thna two wheels, each one rotates in the opposite direction on the one next to it
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