Please enable JavaScript.
Coggle requires JavaScript to display documents.
Pulleys (Fixed (A fixed pulley is a wheel that has a groove for a rope,…
Pulleys
Fixed
A fixed pulley is a wheel that has a groove for a rope, cham or belt to go round lt. It rotates around an axle that ls fixed to an immobile surface. This reduces the load. R when elfort, f, is applied
-
Compound
This is a set of fixed and moveable pulleys, often called a block and tackle. If we use more pulleys it bei.omes more complex, but less effort is needed to move the load
Friction drive
-
• Wheel(II>scalledtheprimary drive wheel When it mi>ves,
-
wheel (2), causing it to move as well.
-
• The output wheel rotates >n the opposite d>rection to the primary wheel. If we use more than two wheels, each one rotates in the oppos>te d>rect>on to the i>ne next to it
-
Gearbelts
Cogwheels are sets of wheels that have teeth called cogs.
The>mesh together so that one wheel moves another They transmit a rotary motion between the two r.onner.ted axles, which can be parallel, perpendicular or ublique Some common types of cvlindncal gears are spur gears and helical gears A bevel gear ts an example of a comcal gea
Work gear
-
Ea ch time the screw rotates the gear moves I'nrward as many teeth as grooves m the acre~ (normally a small number, I, 2 or 3)
-
-