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MECHANISMS by Mind Map: MECHANISMS

1. WHAT IS IT?

1.1. PARTS OF A MECHANISM

1.1.1. INPUT OF FORCE AND MOTION

1.1.1.1. INPUT SOURCE

1.1.1.1.1. OUTPUT RECEPTOR

1.1.1.2. LEG MUSCLES

1.1.2. MECHANISM

1.1.2.1. TRANSMIT AND TRANSFORM

1.1.2.1.1. FORCE

1.1.2.1.2. MOTION

1.1.2.2. LESS EFFORT

1.1.2.3. PEDAL MECHANISM

1.1.3. OUTPUT FORCE AND MOTION

1.1.3.1. RECEPTORS

1.1.3.1.1. ARRIVE FORCE AND MOTION

1.1.3.1.2. PERFORM WORK

1.1.3.2. BACK WHEEL

1.2. CLASSIFICATION OF MECHANISMS

1.2.1. TRANSMISSION OF MOTION

1.2.2. TRANSFORMATION OF MOTION

1.2.3. MOTION CONTROL

1.2.4. ENERGY ACCUMULATION

1.2.5. CONNECTION

1.3. CONSERVATION OF ENERGY AND WORK IN MECHANISMS

1.3.1. PRODUCE ENERGY LOST TO

1.3.1.1. FRICTION

1.3.1.2. HEAT

1.3.2. INCREASES FORCE

1.3.2.1. DECREASE MOTION

2. LINEAR TRANSMISSION OF MOTION

2.1. LEVERS

2.1.1. TURNS AROUND

2.1.1.1. FULCRUM

2.1.2. RIGID BAR

2.1.3. TORQUE=FORCE x DISTANCE

2.2. CLASSES OF LEVERS

2.2.1. CLASS 1

2.2.1.1. FULCRUM MIDDLE

2.2.2. CLASS 2

2.2.2.1. RESISTANCE MIDDLE

2.2.3. CLASS 3

2.2.3.1. FORCE MIDDLE

2.2.4. BRAKE LEVERS

2.2.4.1. CABLES ACTIVATE BRAKES

2.2.5. HAND CRANK

2.2.5.1. TWO PARTS

2.2.5.1.1. CONNECTED A ROTATING SHAFT

2.2.5.1.2. FORMS A HANDLE

2.2.5.2. APPLY FORCE AT A DISTANCE

2.2.5.3. F x D= R x r

2.2.5.4. MAKE ROTATION EASIER

2.2.6. BYCICLE HANDLEBARS

2.2.6.1. LARGER DISTANCE BETWEEN

2.2.6.1.1. OUTSIDE OF WHEEL

2.2.6.1.2. AXIS OF ROTATION IN CENTRE

2.3. PULLEYS AND COMPOUND PULLEY SYSTEMS

2.3.1. PULLEYS

2.3.1.1. WHEEL ROTATES AROUND AN AXIS

2.3.1.1.1. FIXED PULLEY

2.3.1.1.2. MOVABLE PULLEY

2.3.2. COMPOUND PULLEY SYSTEMS

2.3.2.1. COMBINATION

2.3.2.1.1. FIXED

2.3.2.1.2. MOVABLE PULLEYS

2.3.2.2. BLOCK AND TACKLE SYSTEM

2.3.2.3. SYSTEMS

2.3.2.3.1. VERTICAL SYSTEM

2.3.2.3.2. HORIZONTAL SYSTEM

2.3.2.3.3. EXPONENTIAL SYSTEM

3. ENERGY ACCUMULATION MECHANISMS

3.1. ENERGY THEY RECEIVE

3.1.1. ABSORB

3.1.2. ACCUMULATE

3.1.3. DISSIPATE

3.2. ACCUMULATION SPRINGS

3.2.1. ABSORB ENERGY

3.2.1.1. COMPRESSION SPRINGS

3.2.1.2. TRACTION SPRINGS

3.2.1.3. TORSION SPRINGS

3.3. DISSIPATION: SUSPENSION SYSTEMS

3.3.1. SHOCK ABSORBERS

3.3.1.1. SPIRAL STEEL SPRINGS

3.3.2. LEAF SPRINGS

3.3.2.1. LONG, CURVED PIECES OF STEAL

4. MECHANISMS THAT CONTROL MOTION

4.1. DIRECTION CONTROL: RATCHETS

4.1.1. MECHANISM CONTROLS DIRECTION OF MOTION

4.1.1.1. WATCHES

4.1.1.2. CABLE TENSORS

4.2. SPEED REDUCTION: BRAKES

4.2.1. USE FRICTION TO REDUCE SPPED

4.2.2. ACTIVATED FOR A LEVER

4.2.3. TYPES

4.2.3.1. DISC BRAKES

4.2.3.1.1. DISC CONNECTED AXLE

4.2.3.2. BAND BRAKES

4.2.3.2.1. DRUM CONNECTED AXLE

4.2.3.3. DRUM BRAKES

4.2.3.3.1. DRUM CONNECTED AXLE

5. TRANSFORMATION OF MOTION

5.1. ROTARY-LINEAR TRANSFORMATION

5.1.1. REDUCE CONTACT WITH GROUND

5.1.2. DECREASE FRICTION

5.1.3. MECHANISMS

5.1.3.1. RACK AND PINION MECHANISM

5.1.3.1.1. RACK

5.1.3.1.2. PINION

5.1.3.2. NUT AND BOLT MECHANISM

5.1.3.2.1. TRANSFORMS

5.1.3.3. WINCH AND CRANK MECHANISM

5.1.3.3.1. WINCH

5.1.3.3.2. CRANK

5.2. RECIPROCATING ROTARY-LINEAR TRANSFORMATION

5.2.1. RECIPROCATING MOVEMENTS

5.2.1.1. CONTINUOUS ROTARY MOTION

5.2.2. MECHANISMS

5.2.2.1. CRANK AND ROD MECHANISM

5.2.2.1.1. WINDSCREEN WIPER

5.2.2.1.2. ROD TURNS FIRST WHEEL

5.2.2.1.3. SECOND WHEEL CONNECTED

5.2.2.2. CAM MECHANISMS

5.2.2.2.1. CAM

5.2.2.2.2. FOLLOWER CAN MOVE OTHER PARTS

5.2.2.2.3. CAMSHAFT

6. ROTARY TRANSMISSION

6.1. MECHANISMS

6.1.1. FRICTION WHEELS

6.1.1.1. SIMPLE

6.1.1.2. TOYS

6.1.2. PULLEYS WITH BELTS

6.1.2.1. INDUSTRIAL ROLLERS

6.1.2.2. CONVEYOR BELT

6.1.3. INTERLOCKING GEARS

6.1.3.1. RELIABLE

6.1.3.2. CLOCKS

6.1.4. SPROCKETS WITH CHAINS

6.1.4.1. HOME APPLIANCES

6.2. CHANGES IN SPEED

6.2.1. INCREASE SPEED

6.2.1.1. ROTARY SYSTEM

6.2.1.1.1. TRANSMIT MOTION

6.2.2. ROTARY FORCE

6.2.2.1. REMAIN CONSTANT

6.2.3. SYSTEMS

6.2.3.1. INCREASING SPEED

6.2.3.2. CONSTANT SPEED

6.2.3.3. DECREASING SPEED

6.3. SPEED RATIOS

6.3.1. SMALLER WHEEL ROTATES FASTER THAN

6.3.1.1. LARGER WHEEL

6.3.2. RELATIONSHIP BETWEEN SPEEDS OF TWO WHEELS

6.3.2.1. INVERSELY PROPORTIONAL

6.4. BELT DRIVES AND GEAR TRAINS

6.4.1. BELT DRIVE

6.4.1.1. SYSTEM OF PULLEYS CONNECTED BY BELTS

6.4.1.2. RATIO OF TRANSMISSION

6.4.1.2.1. MULTIPLY THE RATIOS OF TRANSMISSION OF THE

6.5. CHANGES IN DIRECTION AND ROTATION

6.5.1. CHANGE AXIS OF ROTATION

6.5.2. GEARS HAVE SPECIAL PARTS

6.5.2.1. PARALLEL AXES

6.5.2.2. PERPENDICULAR AXES

6.5.2.3. CROSSED AXES

6.6. WORM DRIVE

6.6.1. REDUCES SPEED OF ROTARY SYSTEM

6.6.2. TWO PARTS

6.6.2.1. WORM SHAFT

6.6.2.2. WORM GEAR

6.6.3. USES

6.6.3.1. ELEVATOR MECHANISMS

6.6.3.2. SPEED REDUCING SYSTEMS