Hand Mixer
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=='''Wormgear'''== | =='''Wormgear'''== | ||
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*Decisions Made | *Decisions Made | ||
**Number of teeth per length | **Number of teeth per length | ||
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**Max shear stress | **Max shear stress | ||
**Max torque transferred | **Max torque transferred | ||
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=='''Gear'''== | =='''Gear'''== | ||
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*Decisions Made | *Decisions Made | ||
**Number of teeth/gear reduction ratio | **Number of teeth/gear reduction ratio | ||
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**Max shear stress on inside diameter | **Max shear stress on inside diameter | ||
**Max torque transferred | **Max torque transferred | ||
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=='''Fan'''== | =='''Fan'''== | ||
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*Decisions Made | *Decisions Made | ||
**Number of fan blades | **Number of fan blades | ||
Latest revision as of 12:01, 20 February 2008
Ben Bouffard
Andrew Greulich
Chris Jones
- Return to Bucknell Mechanical Design page.
Contents |
Primary Function
The primary function of the hand mixer is to mix food (eggs, cake, etc.) by using a small motor to rotate two beaters.
User requirements:
- Mixes foods
- Is handheld and ergonomic
- Visually Appealing
- Does not Jam with food
- Durability
- Detachable beaters
Engineering specifications:
- Maximum mass (grams)
- Minimum mixer angular speed (radians/second)
- Variable speed (number of speeds)
- Minimum size of opening against beaters (mm)
- High gear reduction ratio
Customer Reviews
Parts
The table below contains the Bill of Materials for the Durabrand Hand Mixer:
| Part # | Part Name | Category | Function | Material | Picture |
|---|---|---|---|---|---|
| 1 | External Switch | Input | Turns on and changes the speed of the mixer | ABS plastic |  |
| 2 | Eject button | Input | Ejects the beaters | ABS plastic |  |
| 3 | Ejector springs | Other | Returns button back to unpressed position | Metal |  |
| 4 | Case | Structural | Seperates inner parts from user and provides an ergonomic handle | ABS plastic |  |
| 5 | Switch | Input | Allows different amounts of current to enter the motor | copper and plastic |  |
| 6 | Magnet | Transmission | Creates a magnetic flux to make the current carrying copper wire in the motor rotate | ABS plastic |  |
| 7 | Fan | Other | Cools motor by sending air past it | ABS plastic |  |
| 8 | Motor | Input | Converts electrical energy into mechanical rotation energy | Mostly Copper |  |
| 9 | Worm gear | Transmission | Carries rotational power from motor | Plastic |  |
| 10 | Gears | Transmission | Changes the shaft roatation from the motor into 2 parallel rotations | Metal |  |
| 11 | Power cord | Input | Plugs into wall and provides AC current | Copper and rubber |  |
| 12 | Beaters | Output | Mixes food | Metal |  |
| 13 | Wires | Input | carries current from switch to motor | Copper and rubber |  |
| 14 | Screws | Structural | Holds various pieces together | Metal |  |
Pro Engineer Models
Wormgear
- Decisions Made
- Number of teeth per length
- Material
- Critical Features/Dimensions
- size of teeth
- diameter
- length
- Type of Loading
- Torque
- Axial
- Measures of Performance
- Max RPM
- Max shear stress
- Max torque transferred
Gear
- Decisions Made
- Number of teeth/gear reduction ratio
- Material
- Critical Features/Dimensions
- size of teeth
- inner diameter
- outer diameter
- Type of Loading
- Torque
- Stress on teeth
- Measures of Performance
- Max RPM
- Max shear stress on inside diameter
- Max torque transferred
Fan
- Decisions Made
- Number of fan blades
- Material
- Critical Features/Dimensions
- size of fan blades
- diameter
- angle of fan blades
- shape of fan blades
- Type of Loading
- Torque
- Measures of Performance
- Max RPM
- Produced mass flow rate of air
