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MECHANISMS - Coggle Diagram
MECHANISMS
ROTARY MOTION MECANISMS
These mechanisms transmit motion and effort in a circular way, from the input to the output. They include friction drives, pulley systems, gears and worm gears.
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Pulleys with belt
They consist of two pulleys or wheels that are a certain distance apart.
Their axles are parallel and they rotate simultaneously due to the effect
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Gear train
This is a system of more than two gears, connected together as shown in
the diagram
The rotary motion ofthe first wheel ( I) doves the second wheel (2), and so on.
In this system, the rotary movement of the first axle is transmitted to the second by means of wheels I and 2.
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Wheel 3 rotates with the same velocity as wheel 2 and doves wheel 4, to which it's connected
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Friction drives
Fnctton dnves are made up of two or more wheels that are in contact
The first wheel is called the primary drive wheeL When it moves, itturns or drives the second or output wheel, causing it to move as well.The output wheel rotates in the opposite direction of the pnmary wheel
lf we use more than two wheels, each one rotates tn the opposite directionto the one next to it.
FORMULA
N, D, = N, D
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D, and D, are the corresponding diameters
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LINEAR MOTION MECHANISMS
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FIXED PULLEY
A fixed pulley is a wheel that has a groove around lt into which a rope,
cham or belt fits It rotates around an axle that is fixed to an immobile
MOVABLE PULLEY
A moveable pulley ts a set of two pulleys — one ts fixed while the other
can move tn a linear direction.
COMPOUND PULLEY
This ts a system of fixed and moveable pulleys, often called block and
tackle.If we use more pulleys, the system becomes more complex, but less
effort is needed to move the load.
DEFINITION
Mechamsms are devices that transmit and convert forces and motion from adnvmg force or input element to an output element.They allow us to carry out certam tasks more easily and more effioently
OTHER MECANISMS
a treatise on different types of mechanisms and various methods of transmitting, controlling and modifying motion, to secure changes of velocity, direction,
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