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mechanisms, image, image, image, image - Coggle Diagram
mechanisms
the system of gears with a chain for bicycle, the cogweels of a clock, the lever of a seesaw, the pulley used to get water from the well are some of the simplest mechanisms that are part of many mechanical objects.
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The motor or driving force is the most important part, as it starts the movement. It can come from a spring, electric motor, or muscles. This movement is then transformed and passed through mechanisms to output elements like wheels or arms, so the machine can do its job.
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linear motion mechanisms
these transmit motion and force in a straight line from one point to other, for example, a lever or a pulley
levers
a lever is a rigid bar used with a point of support or a fulcrum. The mechanical force or effort is applied on one end of the lever,F, with the aim of counteractin the resistance or load,R, which act on the other end of the lever
Types of levers
there are three types of levers- class 1, class 2 and class 3
ther are classified according to the position of the load and effort applied in relation to the fulcum
Fixed pulleys
a fixed pulley is a wheel that has a groove for a ropem, chain or belt to go round it. It rotates around an axle that is fixed to an immobile, this reduces the load,R, when effort, F, is applied
pulleys
Moveables pulleys
A moveable pulley has two pulleys- one is fixed, while the other can move in a linear direction.
Compound pulleys
This is a set of fixed and moveabls 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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