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mechanism - Coggle Diagram
mechanism
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3.Rotary motion mechanisms:These mechanisms transmit motion and effort in a circular way, from cthe input to the output. They include friction drives, pulley systems, gears and worm gears.
3.4. Worm gear: This is a screw that moves a helical cogwheel that is set perpendicular to the screw A worm screw fulfils this equation: Nwheel=Nscrew x Ngroves/Nwheel
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3.3. Gear mechanisms and cogwheels:Cogwheels are sets of wheels that have teeth called cogs.The cogs fit into the spaces between the cogs of another wheel, so that one wheel moves the other.
The ratio between the rotation veloaues of the wheels depends on the
number of teeth on each wheel. It's expressed by this equation:
N, Z ,=N ,.Z,= z1/Z2
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3.2. 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.
3.1. Friction drives:The first wheel is called the primary drive wheeL When it moves, it turns or drives the second or output wheel, causing it to move as well.
N, D, = N, Dr D1/D2=N2/N1
X] and fsfr are the velocities of the primary dmve wheel and the
D, and D, are the corresponding diameters
The ratio D ID, is called the gear ratio.
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Around us we can see many moving obiects and mechanisms that produce movement that we can also call motion.
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