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Agricultural Engineering Agriscience Applications

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Title: Agricultural Engineering Agriscience Applications


1
Agricultural Engineering Agriscience Applications
2
Careers
3
Careers
  • Attracts students interested in operation,
    maintenance, service, and selling of agricultural
    equipment.
  • Varied careers in Production support such as
    Tractor mechanic, farm machinery assembler,
    Agriculture Safety Engineer.

4
Careers
  • Careers also in horticulture such as irrigation
    engineer, Lawn mower mechanic, Agriculture
    Equipment designer.
  • Education varies with the type of Agriscience
    mechanics career chosen and working conditions.
  • Broad field includes agricultural processing.

5
Careers
  • Electricians design wire agricultural equipment
    structures.

6
Careers
  • Use of engineering equipment like levels
    tripods to survey, layoff, and construct
    terraces.
  • Use of earth moving machinery to control erosion.

7
Careers
  • Diesel mechanics are in demand because..
  • Of the large amounts of diesel powered equipment.
  • Builders of structures equipment.

8
Safety Awareness
  • Safety is being prepared since almost 50 of all
    farm related accidents involve working with
    machinery equipment.
  • Safety is developing an environment free from
    danger, risk, or injury.

9
Safety Awareness
  • The 1 key to shop safety is the people who use
    the shop.
  • Workers should always.
  • Be trained in proper tool operations.
  • Pass a safety test before using the shop.

10
Principles for Safety
  • Keep the shop in an orderly manner to prevent
    tripping and related injuries.
  • Remove unnecessary hazards such as
    oily rags.
  • Minimize danger by making certain all machines
    have safety shields to place prior to an during
    operation.

11
Principles for Safety
  • Wear appropriate protective clothing
    devices.
  • Safety glasses goggles prevent eye injury from
    dust and flying objects.
  • Leather steel-toed shoes offer protection should
    items be dropped or fall on the feet.
  • Ear plugs or ear muffs can prevent hearing loss
    when the noise level exceeds 90 dB (decibels).

12
Safety Color Coding
  • National organizations worked together.
  • Code was published by the.
  • American Society of Agricultural Engineers
  • Safety Committee of the American Vocational
    Association
  • Color coding alerts people to dangers hazards,
    provides information to help one react quickly in
    an emergency.

13
Basic Colors
  • Red
  • Identifies areas of danger.
  • Used on safety switches fire extinguishers.
  • Danger

14
Basic Colors
  • Orange
  • Identifies wheels, levers, and knobs.
  • Warning

15
Basic Colors
  • Yellow
  • Identifies that wheels, levels, and knobs that
    adjust or control machines.
  • Caution

16
Basic Colors
  • Blue
  • Used on signs such as Out of order to identify
    broken shop equipment that does not work
    properly.
  • Information

17
Basic Colors
  • Green
  • Indicates the presence of first aid and safety
    equipment.
  • Safety

18
Fire Hazards in the Agricultural Mechanics Shop
19
The Fire Triangle
20
The Fire Triangle
  • Fuel
  • Any combustible material that will burn
  • Examples
  • Oily rags
  • Saw dust
  • Paper

21
The Fire Triangle
  • Heat
  • Most materials will burn if they are made hot
    enough.

22
The Fire Triangle
  • Oxygen
  • Gas in the atmosphere that is not a fuel, but
    must be present for fuels to burn.

23
Fire Prevention
  • Take away one of the components of the fuel
    triangle and fire will not start or will stop if
    it has started.
  • Safe storage of fuels is the easiest fire
    prevention technique.
  • Clean shop facilities also decrease the chance of
    fire.

24
Fire Extinguishers
  • Know the kind of fire extinguisher that is used
    for different kinds of fires prior to the fire.
  • Class A is used for ordinary combustibles.
  • Class B is used for flammable liquids.
  • Class C is used for electrical equipment.
  • Class D is used for combustible metals.

D
C
B
A
25
Fire Extinguishers
  • Know the placement of fire extinguishers so that
    time is not taken looking for them if a fire
    occurs.
  • Should be hung on walls within easy reach in
    areas where fires would most likely occur.

26
Using Fire Extinguishers
  • Know how to use the fire extinguisher.
  • Hold upright, pull the ring pin, press the lever.
  • The nozzle of the extinguisher is directed toward
    the base of the fire to discharge the
    extinguisher.

27
Smothering a Fire
  • Best used on a person whose clothes are on fire.
  • Wrap the person in a blanket to cut the oxygen
    off to the fire.

28
Planning Agricultural Engineering Projects
29
Instruments for Simple Designs
  • Sharp Lead Pencil
  • Needed for the highest quality scale drawing.
  • Protractor
  • Used for drawing measuring angles.
  • Good Eraser
  • Helps makes corrections without distorting the
    image.
  • 12 inch Ruler
  • Works for basic drawing.
  • Compass
  • Used for drawing circles arches.

30
Instruments for Detailed Designs
  • Drawing Board
  • Used for attaching the drawing paper.
  • Masking Tape
  • Used to secure the drawing paper to the drawing
    board.
  • T-Square
  • Helpful for drawing horizontal lines.

31
Instruments for Detailed Designs
  • Right Triangle
  • 30o x 60o x 40o
  • Used to draw vertical lines.
  • Scale
  • Instrument with all increments shortened
    according to proportion.
  • Two Types
  • Flat Scale looks similar to a ruler.
  • Triangular scales three sides, but six scales.

32
Basics of Drawing
  • Sketch
  • Rough drawing that is not to scale.
  • Sketches do not have dimensions included.
  • Pictorial Drawing
  • Shows all three sides dimensions at once.
  • All three views (front, side (end), and top are
    in view.

33
A Pictorial Drawing
34
Basics of Drawing
  • Scale drawing
  • Represents an object in exact proportion.
  • Object is larger/smaller than the drawing itself.
  • Examples ¼ 1
  • Then ¼ on the drawing would equal 1 on the
    actual object.
  • 2 line on the drawing would equal 8 on the
    object. (2 divided by ¼ 8)
  • The scale will vary depending on the size of the
    object being drawn.

35
Determining Materials
  • Bill of Materials
  • Complete list and description of all materials
    needed to construct a project.
  • Abbreviations are often used.
  • BF Board foot
  • LF Linear foot

36
Determining Board Feet
  • Determining board feet for small pieces.
  • BF Thickness (inches) x width (inches) x
    length (inches) 144
  • Determining board feet for large pieces.
  • BF Thickness (inches) x width (inches) x length
    (feet)

    12

37
Determining Board Feet
  • How many board feet are in a board
    4 x 6 x 24?
  • BF 4 x 6 x 24 576 4 BF
  • 144 144
  • How many board feet are in a board
    1 x 12 x 8?
  • BF 1 x 12 x 8 96 8 BF
  • 12 12

38
Basic Construction Projects Tips
39
Wood Projects
  • Fastest way to fasten wood is by nailing.
  • Nail hammer or nail gun are preferred
    tools for driving nails.
  • Screws hold better than nails and are driven
    quickly with power screwdrivers.
  • Flathead screw is the one most used
    in woodworking.

40
Wood Projects
  • Bolts are particularly useful for
    fastening wood at high stress points.
  • Gluing is the strongest method of
    fastening wood.
  • Often used along with nails, screws, etc.
  • Boards are held in place for gluing by clamps.
  • Dowel pins are round wood pins
    sometimes used to strengthen wood joints.

41
Metal Projects
  • Steel
  • Most commonly used metal in agricultural
    mechanics.

42
Marking Steel
  • Presents a special problem as pencil marks do not
    show up well.
  • Soapstone
  • Soft, gray rock.
  • Cut into thin pieces resembling pencils.
  • Shows up well on most metals.

43
Cutting Metal
  • Hack Saw
  • Hand tool most often used for cutting metal.
  • Especially useful for cutting thin conduit.
  • Metal Cutting Band Saw Power Hacksaws
  • May be used for large projects.

44
Practice Board Foot Problems
  1. 1 x 5 x 4
  2. 2 x 10 x 40
  3. 1.5 x 2.5 x 8
  4. 5 x 10 x 100
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