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White Table Tops Text Books & Work Books
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Mechanical Engineering Linking in Technical Objects Guiding Controls
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Pages Work book p. 217 Text book p. 427
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Linking in technical objects
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Mechanical Engineering is… A branch of engineering that focuses on the design, production, analysis, working and improvement of technical objects with moving parts
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A link allows… Two or more parts of a technical object to be held together
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In mechanics, a component is… a part or fluid that performs a mechanical function
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Linking is… The mechanical function performed by any component that connects different parts of a technical object
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The degrees of freedom are… The set of independent movements that are possible for a given part in a technical object
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Possibilities of Independent Motion
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Translational Motion
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Translational motion From left to right From top to bottom From back to front Tx Ty Tz
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Left to Right (Tx) X- Axis
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Top to Bottom (Ty) Y- Axis
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Back to Front (Tz) Z-Axis
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Rotational Motion
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About the x axis About the y axis About the z axis Rx Ry Rz
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X-Axis (Rx) X-Axis
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Y-Axis (Ry) Y-Axis
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Z-Axis (Rz) Z-Axis
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Characteristics of links p. 218
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1 st Characteristic pair Direct Indirect
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Direct A direct link exists when two parts can hold together without requiring a linking component
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Cell Phone > Case
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Indirect An indirect link exists when the parts require a linking component to hold them together
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Arm > Frame ?
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2 nd Characteristic pair Rigid Flexible
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Rigid A rigid link exists when the surfaces of the linked parts or the linking component are rigid
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Base > monitor
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Flexible A flexible link exists when the surface of the linked parts or the linking component can be deformed
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Pages > spine
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3 rd Characteristic pair Removable Non-removable
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Removable A removable link exists when linked parts can be separated without damaging them
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Laces > eyelets
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Non-removable A non-removable link exists when separating the linked parts damages them or the linking component
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Sole > upper ?
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4 th Characteristic Pair Complete Partial
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Complete link There is a complete link when there is no movement between linked parts
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Top > bottom
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Partial There is a partial link when at least one part is capable of motion with respect to the other
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Cap > pen
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Guiding Controls Work book p. 221 Text book p. 431
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Guiding is… The mechanical function performed by any component that controls the motion of one or more moving parts
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A Guiding Component or Control is.. A component whose mechanical function is to guide the motion of moving parts
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Adhesion is… The phenomenon by which two surfaces tend to remain in contact with each other without slipping
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In Mechanics, Friction is… A force that resists the slipping of one moving part over another
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Lubrication is… The mechanical function performed by any component that reduces friction between two parts
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Main Types of Guiding
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Translational Guiding Ensures the straight translational motion of a moving part
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Translational Guide
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Rotational Guiding Ensures the rotational motion of a moving part
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Rotational Guide
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Helical Guiding… Ensures the translational motion of a moving part while it rotates about the same axis
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Helical Guide
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Homework Pp. 217-224
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Activity # 1 Table = group 1 student with white board + pen Group I.D. characteristics of link Write answers on white board Winners = prize
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The types of « Links » between Parts The “link” between the frame and the adjusting screw is: ? Non-removable or removable, Complete or partial, direct or indirect, rigid or flexible,.
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The types of « Links » between Parts The “link” between the frame and the adjusting screw is: ? Non-removable or removable, Complete or partial, direct or indirect, rigid or flexible,
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The types of « Links » between Parts The “link” between the frame and the adjusting screw is: ? Non-removable or removable, Complete or partial, direct or indirect, rigid or flexible,
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The types of « Links » between Parts The “link” between the frame and the adjusting screw is: ? Non-removable or removable, Complete or partial, direct or indirect, rigid or flexible,
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The types of « Links » between Parts The “link” between the frame and the adjusting screw is: ? Non-removable or removable, Complete or partial, direct or indirect, rigid or flexible,
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Types if GUIDES
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The types of « Guides » between Parts The Guide between the frame and the adjusting screw is: ? Translational Rotational Helical
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The types of « Links » between Parts The “link” between the bottom handle and the top handle is: ? permanent or removable, fixed or moveable, direct or indirect, rigid or flexible,.
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The types of « Links » between Parts The “link” between the bottom handle and the top handle is: ? PERMANENT or removable, fixed or moveable, direct or indirect, rigid or flexible,.
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The types of « Links » between Parts The “link” between the bottom handle and the top handle is: ? PERMANENT or removable, fixed or MOVEABLE, direct or indirect, rigid or flexible,.
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The types of « Links » between Parts The “link” between the bottom handle and the top handle is: ? PERMANENT or removable, fixed or MOVEABLE, direct or INDIRECT, rigid or flexible,.
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The types of « Links » between Parts The “link” between the bottom handle and the top handle is: ? PERMANENT or removable, fixed or MOVEABLE, direct or INDIRECT, RIGID or flexible,.
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Wind Turbine Project
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Horizontal Axis
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