1. Technology:
Links & Guides

2. A BASIC MECHANICAL FUNCTION is the role played by a component(s).
A technical object’s COMPONENTS are the parts or fluids that have a mechanical function.
A BASIC MECHANICAL FUNCTION is the role played by a component(s).

3. BASIC MECHANICAL FUNCTIONS:
We will be looking at TWO (of several)
BASIC MECHANICAL FUNCTIONS:
Linking Function
Guiding Function

4. A LINK helps connect two or more parts of a technical object.
LINKING is the basic mechanical function provided by any component that links an object’s parts.
A LINKING COMPONENT is one that has the basic mechanical function of linking.
P.385 textbook

5. Basically:
A component that performs the linking function is called a linking component.

6. A link always has
FOUR characteristics.
Direct or indirect
Rigid or flexible
Removable or non-removable
Complete or Partial

7. 1
DIRECT
INDIRECT
Two parts can hold together without a linking component.
Two parts must hold together WITH a linking component.

8. 2
RIGID
FLEXIBLE
The surfaces of linked parts or linking components can be deformed.
The surfaces of linked parts or linking components are rigid.

9. NON- REMOVABLE REMOVABLE 3
Linked parts can be separated with no resulting damage.
Separating the linked parts will cause damage.

10. 4
COMPLETE
PARTIAL
At least one part is capable of motion with respect to the other.
No movement between linked parts.

11. BASIC MECHANICAL FUNCTIONS:
We will be looking at TWO (of several)
BASIC MECHANICAL FUNCTIONS:
Linking Function
Guiding Function P 11

12. GUIDING is the basic mechanical function of any component that controls the motion of one or several moving parts.
A GUIDE is a component that has the basic mechanical function of guiding.

13. The two main guiding motions performed by technical objects are:
Rotational motions
Translational motions

14. There are 6 main TYPES of links:
There are 4 pairs of CHARACTERISTICS of links.
There are 6 main TYPES of links:
Fixed
Rotating
Sliding
Sliding Rotating
Spherical
Helical

15. FIXED link
There is NO MOVEMENT between linked parts.

16. ROTATING link
The guided part can undergo rotational motion around one axis.

17. SLIDING link
The guided part can undergo translational motion on one axis.

18. SLIDING ROTATING link
The guided part can undergo translational & rotational motion on the same axis.

19. SPHERICAL link
The guided part can undergo rotational motion in MANY directions.

20. HELICAL link
The guided part can undergo helical motion.