Please enable JavaScript.
Coggle requires JavaScript to display documents.
MECHANISMS (Rotary motion mechanics (Pulley trains with belts (Variation…
MECHANISMS
Rotary motion mechanics
Worm gear
This is a screw that moves a helical cogwheel that is set perpendicular to the screw. 
-
-
-
Gear train
The gear ratio between the driven wheel and the dnven wheel
depends on the number of geared teeth in the system.
-
Pulleys with belt
It consists in 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.
-
Pulley trains with belts
The gear ratio between the drive pulley and the dnven pulley depends on the relative size of the pulleys in the systems
-
-
Friction drives
Are made up of two or mor wheels that are in contact.The first wheel is called the primary drive wheel. The second is called output wheel. It equation is : D1/D2=N2/N1
-
-
Linear motion mechanisms
Levers
Class 2
-
-
EXAMPLES
Plier
Bottle opener
Class 3
-
-
EXAMPLES
Fishing rod
Eyebrow tweezers
Class 1
-
-
EXAMPLES
Scissors
Hammmer
-
Definition
Mechanisms are devices that transmit and convert forces and motion from a driving force or input element to an output element.They allow us to carry out certain tasks more easily and more efficiently .