Mechanisms Flashcards
What is a mechanism
A mechanism is a system of moving parts that perform some function. they’re used to reduce the effort in relation to work
What are types of mechanisms
Leverages and linkages
Wheels
Pulleys
Gears
What are the 3 basic building blocks of mechanical control
Input
Process
Output
What is the input
The input is usually a force and initiates the process
What is the process
The process will change the magnitude or direction of the force
What is the output
The output performs the desired task
A mechanism:
Has a input, process and a output
Can change the direction in which a force acts
Can change the size of the force
Can change the place where the force acts
What is a lever
A lever is a type of mechanism
What are the 3 basic parts of a lever
The fulcrum, the load and the effort
What is a class 1 lever
It has the load first then the fulcrum and finally the effort
What is a class 2 lever
A class 2 lever has the fulcrum first and then 5h e-learning and finally the effort
What is a class 3 lever
A class 3 lever has the fulcrum first then the effort and finally the load
What are gears
Gears are wheels with teeth which mesh together to transmit rotary motion. When two or more gears mesh it is called a gear train
What are the 2 types of gears
Compound and simple
What are other types of gears
Rack and pinion
Worm and wheel
Bevel gears
