Engineered Wheel Barrow Essay

1998 words - 8 pages

Ulladulla High SchoolPage 1 of 9Industrial Arts DepartmentEngineering StudiesWheelbarrowWill IslesMr MacdonellJune 2014Page 2 of 9AbstractThe report shows the design and engineered materials used in the production of a backyard wheelbarrow. Past designs of wheelbarrows have been compared with new designs and aspects. Carefully selected and suitable materials and parts for the construction of the wheelbarrow have been noted in the report. Orthogonal drawings and a free body diagram are included in the report.Page 3 of 9Table of Contents Page NumberTitle Page 1Abstract 2Table of Contents 3Introduction/Design Explanation 4Materials Used/Effects on People's Lives 5Comparing Design Ideas ...view middle of the document...

This will allow the wheelbarrow to not tip over and the materials in the tray will not fall out. The wheels also take majority of the weight of the load on them as they are placed in the middle of the tray compared to the operator taking half the load with a single wheel at the front of the wheelbarrow distributing the load.Materials UsedPage 5 of 9
Part of Wheelbarrow

Material Used

Why Material was Selected

Frame

Hardwood & Flat Steel Bar
OR
Steel Tubing & Flat Steel Bar

Strong, long lasting & can support a lot of weight.

Tray

Steel or Polyethylene

Strong and can resist materials and waste products being stored in/on it.

Axle

Stress-Proof Steel

Can sustain a lot of movement and work. Material is durable.

Brace

Steel

Durable and can sustain a large amount of weight.

Wheel

Steel or Plastic

Plastic - Lightweight and durable.
Steel - Strong, heavy and durable.

Tyre

Natural or Synthetic Rubber

Natural - Less heat build-up from flexing.
Low level of Damping
Synthetic - Resistant to oil.
Longer lasting

Handle

Hardwood

Long lasting and easily repairable or replaceable.

Effects on People's LivesThe wheelbarrow was invented in China as early as 100 B.C. The invention changed the way people transported their goods. Heavy loads such as agriculture supplies or construction materials were placed on a slab of wood behind a fixed wheel; the operator would pick up the load at the end of the slab of timber and transport it to the preferred destination. The wheelbarrow has been a success as it allows people to carry heavy loads close to the ground opposed to carrying a heavy load with one or two people at waist level. The load can be emptied by simply tilting and twisting it. The use of a wheelbarrow consists of only one operator so this allowed labour costs to be half. The wheelbarrow is now considered a necessity for a backyard gardener or trade worker.Comparing Design IdeasPage 6 of 9The modern wheelbarrow is considerably different compared to the first designs of the device. The first design consisted entirely of timber had two planks of timber acting as handles at one end and holding the wheel and axle in place on the other end. Animal fat was used as a lubricant for the wheel axle. As the years went...

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