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MECHANISMS, worm gear, cam, mechanisms that transform motion, levers,…
MECHANISMS
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The most important element all of them is the motor or dnvmg
force that starts the movement. This motor can be a spring, an electric
motor or our own muscles. The movement (or motion) produced by
the motor can be transformed and is transmitted via different
mechanisms to the output elements.
Mechanisms are devices that transmit and convert forces and mouons
from a driving forceto an output element.) hey enable us to
carry out certain tasks with greater comfort and less effort
worm gear
Each time the screw rotates the gear moves forward as many teeth
as grooves in the screw (normally a small number, I, 2 or 3)
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cam
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A cam transforms rotary motion into reciprocating motion in the follower or bar. This is touched and moved by the edge
of the cern when it rotates
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levers
A lever is a rigid bar that is used with a point of support or a fulcrum . The mechanical force or effort is applied on one end of the lever
compound pulleys
This is a set of fixed and moveable pulleys often called a block and
tackle. If we use more pulleys it becomes more complex but less effort is needed to move the load
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