What Is This Mechanism Called?

1.  Look at the figure.

·  What is this mechanism called?

·  Next to the drawing, label which element is the rack and which is the pinion.

·  If the pinion turns in the direction indicated by the arrow (clockwise), in which way will the rack move forward? Show this by drawing an arrow.

·  Write the formula that corresponds to this mechanism.

·  Given a rack and pinion mechanism with a distance between the teeth of 3mm and a pinion with 20 teeth with 30rpm, calculate the velocity of the movement of the rack in mm per minute.

·  What applications does this mechanism have?

2.  In the figure.

·  What is this mechanism called?

·  Next to the drawing, label which element is the nut and which element is the bolt or ......

·  If the pinion turns in the direction indicated by the arrow (clockwise), in which way will the bolt move forward? Show this by drawing an arrow.

·  Which direction must the bolt move so that the nut moves towards the right?

·  What applications does this mechanism have?

3.  Look at the figure.

·  What is this mechanism called?

·  Next to the drawing, label which element is the winch and which is the crank handle.

·  If the crank handle turns in the direction indicated by the arrow, in which way will the winch turn? Will the force of the hanging weight increase or decrease? Indicate this in the drawing by drawing an arrow.

·  Write the formula that corresponds to this mechanism.

·  Given a winch with a radius of 10cm and a crank handle with a radius of 50cm, what is the maximum weight that could be lifted given a force of 5N? If we wanted to lift a load or 75kg, what force should be applied?

4.  In the figure.

·  What is this mechanism called?

·  Next to the drawing, label which element is the crank, as well as the connecting rod and flywheel.

·  If the flywheel turns in the direction indicated by the arrow (direction:...... ) indicate the direction of the connecting rod and the crank. This movement is called......

·  A crank is coupled with the edge of a flywheel that is 25cm in radius. At the same time, the crank is connected to a connecting rod. What distance will this cover in its swinging motion?

5.  In the figure.

·  What is this mechanism called?

·  Next to the drawing, label which element is the eccentric cam, the slide support and the follower.

·  If the eccentric cam turns as indicated by the arrow (direction...... ) indicate the movement that will take place in the slide support and the follower.

6.  In the figure.

·  What is this mechanism called?

·  Label the elements. Which way of turning is possible and which is blocked?

7.  What are the names of these mechanisms?

·  Label the elements that compose each of the following mechanisms.

·  Explain in one word (and its synonym) the basic function of each mechanism.

8.  Label the following mechanisms.

·  What type of mechanisms do these belong to?

·  Explain the function of each of these in one sentence.

9.  Make an outline of the mechanisms that accumulate energy.

10.  Explain the difference between journal bearings and ball bearings.

Do a schematic drawing of each one.