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017be19f9406012cc716cd338432eea555891b88 - Coggle Diagram
MECHANISMS
Mechanisms are devices that transmit and convert forces and motion from a driving force or imput element to an output element. : 
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LINEAR MOTION MECHANISMS
LEVERS
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FIXED PULLEY
A fixed pulley is balanced when the effortt F is equal to the resistance of the load, R: F = R
MOVABLE PULLEY
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COMPOUND PULLEY
This is a system of fixed and movable pulleys, often called block and tackle
ROTARY MOTION MECHANISMS
FRICTION DRIVES
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The ratio between the rotation velocity of the wheels or pulleys depends on the relative size of the wheels.
It is expressed by the following equation:
N1D1 = N2D2 -> D1/D2 = N2/N1
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 of the belt.
GEAR MECHANISMS AND COGWHEELS
Cogwheels are sets of wheels that have teeth called cogs
The cogs fit into the the spaces between the cogs of another wheel so that one wheel moves the other
The ratio between the rotation velocities of the wheels depends on the number of teeth on each wheel. Its expessed by this equation;
N1Z1 = N2Z2 -> Z1/Z2 = N2/N1
WORM GEAR
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GEAR MECHANISMS WITH A CHAIN
The relation between the rotation velocities of the wheels depends on the numbber of teeth on each gear:
N1Z1 = N2Z2 -> Z1/Z2 = N2/N1
GEAR TRAIN
This is a system of more than two gears connected together as shown in the diagram.
The gear ratio between the drive wheel and the driven wheel depends on the number of geared teeth in the system:
N4/N1 = Z1Z3/Z2Z4
PULLEY TRAINS WITH BELTS
The gear ratio between the drive pulley and the driven pulley depends on the relative size of the pulleys in the system. Its expressed as a funtion of their diametres.
N4/N1 = D1D3/D2D4
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OTHER MECHANISMS
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MECHANISMS THAT STORE ENERGY
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SUPPORTS: BUSHINGS AND BEARINGS
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