Standard

 DDS 229 - Gears and Cams

Course Description

Emphasizes calculation, specification development, and drawing of gear and cam systems to produce desired results. Topics include: reference source utilization, solution for two unknowns, standard gear applications, standard cam applications, and gear ratios.

 

Competency Areas

Hours

 

Reference Source Utilization

Class

3

Solution for Two Unknowns

D. Lab

7

Standard Gear Applications

P. Lab/O.B.I.

0

Standard Cam Applications

Credit

6

Gear Ratios

 

 

 

 

 

Prerequisite:

DDS 201, DDS 226, MAT 104

Corequisite:

 

 

Course Guide

 

Competency

After completing this section, the student will:

Hours

Class

D.Lab

P.Lab/

O.B.I.

REFERENCE SOURCE UTILIZATION

4

2

0

Variables

List variables that are included in typical reference sources for cams and gears.

 

 

 

Sources

List sources of reference information for cams and gears.

 

 

 

SOLUTION FOR TWO UNKNOWNS

4

6

0

Gears

Solve gearing problems that contain at least two unknowns.

 

 

 

Cams

Solve cam problems that contain at least two unknowns.

 

 

 

STANDARD GEAR APPLICATIONS

10

30

0

Applications

List situations in which gearing is required for mechanical operations.

 

 

 

Cutting data

Determine required cutting data for various types of mating gears.

 

 

 

Working drawings

Draw working drawings for various types of gear applications.

 

 

 

STANDARD CAM APPLICATIONS

10

30

0

Applications

List situations in which cams are required in mechanical operations.

 

 

 

Motions

Identify and list applications for cam motions.

 

 

 

Working drawings

Draw displacement diagrams and cam profiles for various types of cams and followers.

 

 

 

GEAR RATIOS

2

2

0

Applications

Identify and explain applications for gear ratios.

 

 

 

Variables

Identify variables that affect gear ratios.

 

 

 

 

Suggested Resources

 

Books

 

American Gear Manufacturers Association. (1988). Design manual for bevel gears. Alexandria, VA: Author.

American Gear Manufacturers Association. (1989). Design manual for epicyclic gear drives. Alexandria, VA: Author.

Dudley, D. W. (1984). Handbook of practical gear design (rev ed.). New York: McGraw-Hill.