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MECHANISMS - Coggle Diagram
MECHANISMS
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CONECCTING MECHANIMS
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Movable connections are used to connect shafts that can move
along the axle or at an angle to each other.
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LEVERS
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types of levers (the classifications are based on the relative position of the lever, the effort applied and the resistance
class 1- the fulcrum is between the effort applied and the resistance. The effect of the effort applied can be multiplied or reduced
class 2- the resistance is between the fulcrum and the effort applied. The effect of the effort applied is always multiplied (d>r)
class 3- the effort applied is between the fulcrum and the resistance- The effect of the effort applied is always reduced (d<r)
ROTARY MOTION MECHANIMS
This mechanims transmit effort and motion in a circular way, from tjhe input to the output.
FRICTION PULLEYS
2 or more wheela that are in contact . the firts wheel = primary drive wheel, because when it moves, it drives the second= output wheel, causing it to move as well
the ratio between the rotation velocity of the wheels or pulleys depends on the relative size of the wheels. is expressed by the following equation----- N²· D¹= N¹· D²---> D¹:D² = N²:N¹
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PULLEYS WITH BELT
2 pulleys pr wheels. their axles are parallel and they rotate simountaneously due to the effect of the belt
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GEAR TRAIN
system of more than 2 gears, connected together as shown in the diagram. The gear ratio between the drive wheel (I) and the driven wheel (4) depends on the number ol geared teeth m the system
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mechanisms are devices that transmit and convert forces and motion from a driving force or input element to an output element. they allow us to carry out certain tasks more easly and more efficiently
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FIXED PULLEY
It's balanced when the effort F is equal to the resistance of the load, R
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COMPOUND PULLEY
this is a system of fixed pulley and movable pulley, often called block and tackle
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the most important element is the diving force that initiates the movement. It can be a spring, an electric motor or our own muscles
mechanisms that transmit motion and force in a straight line from one point to another. Like, lever and fixed, mobile and compound pulleys