Mechanical Components Flashcards
(14 cards)
What is the function of a wheel and axle in mechanical systems?
To reduce friction and make movement easier by rotating together.
Describe the physical appearance of gears.
Circular wheels with teeth around the edge that mesh with other gears.
What is the role of a cam in a mechanical system?
To convert rotary motion into reciprocating or oscillating motion.
What does a follower do in a cam system?
It follows the shape of the cam to produce specific movement.
How would you describe a lever?
A rigid bar that pivots around a fixed point (fulcrum) to amplify force.
What is the purpose of belts in mechanical systems?
To transmit rotary motion between pulleys, often over a distance.
What is a pulley used for?
To change the direction of a force or to lift loads more easily.
What is the function of a shaft?
To transmit rotary motion and torque from one component to another.
How can you select appropriate mechanical components?
By considering the type of motion, force requirements, space, and function of the system.
Name one advantage and one disadvantage of using gears.
Advantage: precise motion control; Disadvantage: can be noisy and require lubrication.
Why are cams and followers useful?
They allow complex motion patterns to be produced from simple rotary input.
When would you use a lever in a mechanical system?
To increase force or change direction of movement.
What factors should be evaluated when choosing belts and pulleys?
Strength, flexibility, slip resistance, and size.
How do shafts contribute to mechanical systems?
By efficiently transferring power between components.
