Please enable JavaScript.
Coggle requires JavaScript to display documents.
MECHANISMS, From rotary into linear, F is the force or effort applied at…
-
From rotary into linear
-
Rack and pinion system
This uses a pinion that is a small cogwheel, mounted on a rack that is a
toothed belt or bar
-
-
-
-
-
-
-
-
-
A crank is a bar attached to an axle that is used to turn it. A winch and crank handle system consists of a drum that rotates and a crank handle that allows to pull or lift obiects
This consists of a bolt or threaded bar and a nut that has the same
intenor diameter as the diameter of the bolt.
-
Crank-link-slider
This is composed of a crank and a rod called a connecting rod or link. This rod has articulated joints at each end — one is connected to the
crank and the other to the slider.
This is a set of connecting rods attached to a jointed axle. Each of the
joints of the axle acts as a crank.
-
This is basically a rotating object that pushes a follower as it moves. We can change the shape and the usable profiles-the outside ege of the piece-that are more or less pointed to produce more complex movements.
This consists of a wheel with an off-centre rotation axle that doesn't coincide with the centre of its circumference. It transforms the rotary motion of the
wheel into reciprocating motion in the follower
-
-
Band brakes consist of a metal band that puts pressure on a drum
attached to the axle of the object we want to slow down.
-
-
By traction. The spring is streched, in a bed frame for example.
Springs are devices that absorb energy. This energy can be released
later, little by little or all at once.
-
-
Mechaisms are devices that transmit and convert forces and motion from a
driving force or input element to an output element.
-
Compound pulley: this is a system of fixed and moveable pulleys, often called block and
tackle.
-
-
-
F=R
Fixed pulley: a fixed pulley is balanced when the effort F is equal to the resistance of the load, R:
-
F=R:2
Movable pulley: A moveable pulley is a set of two pulleys — one is fixed while the other
can move in a linear direction.
-
-
-
The gear ratio between the drive wheel and the driven wheel depends on the number of geared teeth in the system.
This is a system of more than two gears, connected together
-
The gear ratio between the drive pulley and the driven pulley depends on the relative size of the pulleys in the system. It's expressed as a function of their diameters.
is a system of pulleys, or wheels, with a belt
formed by more than two wheels.
-
-
-
By compression. The spring is compressed, in a chair for example
-
By torsion. The spring is twisted, in a clothes peg for example.
-
In bushings the axle or the shaft is inserted in a plain circular piece
that is placed inside a housing to provide a bearing surface.
-
-
-
-
-
-
-
-
-
-
