Booth Setup for Karnival Inovasi

8/11/2019 Booth Setup for Karnival Inovasi

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WASH CLOTHES BY

USING BICYCLEPOWERED WASHING

MACHINE


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hypothesis

1. When a big gear (driver) meshesto a small gear (follower), it

produces more speed for the

washing machine.

2. When a big gear (driver) meshes

to a small gear (follower), it needsmore force to cycle.


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Material used

Old bicycle unused washing machine iron rods rollers

toolkits Bolt and nuts woods screws

Welding machine different size of gear hand drill PVC pipe


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Procedures

Step 1

Modify the washing machine

1. Remove the outer metal shell, usually white in colour,

from the washing machine by unscrewing every bolt onthe machine.

2. Take out the electric motor from the washing machine

frame.3. Remove the pulley from the motor shaft.

4. Take off the drain hose that connects the tub to the

pump.


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5. Make a stand to hold the washing machine with wood.

As shown in the picture below,

Making a stand for the washing machine


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6. Tie the washing machine to the wood with iron string.

7. Screw the each part of the wood stand with bold and nut.

( Do not use nail because it is not that strong to hold a

heavy load).

8. Then connect two different size of gears with horizontal

and vertical under the washing machine.

9. Weld the gears to the washing machine.

10. We also fixed rollers under the washing machine

stand.


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Step 2

Modify the bicycle1. Remove the second (bicycle) rim and a tyre from the

bicycle.

2. Connect the back gear of bicycle with the horizontal

gear of washing machine.3. Use an iron rod to connect both the gears.

4. Weld both the ends.

(Make sure both the gears and the iron rod rotates

together when the bicycle tyre is rotating.)5. Fix a stand for the iron rod.

6. When the bicycle gear rotates, the horizontal gear and

vertical gear under the washing machine will rotate

together.


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Step 3

Make the bicycle stable1. Fix a stand at the middle of the bicycle. (To

make the bicycle stable)

2. The outlet fixed must be connected to the breakof the bicycle.

3. Make sure all the parts are connected well.

4. When cycling all the gears will rotate. This will

enable the motor of the washing machine torotate.

5. Test the bicycle powered washing machine.


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Aim

TO FIND OUT WHICHCOMBINATION OF GEARS

THAT INCREASES SPEEDAND FORCE FOR THE

WASHING MACHINE.


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hypothesis

Combination of big gear(driver) and small gear

(follower) in the bicycleincrease the speed and

force in the washingmachine.


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Variables

What to change :Combination of gears

What to observe :

1. Rotating speed of washing machine

2. Force is determine by the number of

heartbeats (min)

Kept the same : Mass of clothes


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Experiment procedures

1. Put some of clothes and pour some water in thewashing machine with little amount of detergents.2. Cycle for few minutes or until the cloths are

completely washed.3. Press the break to discharge the water.4. Again pour some water in the washing machine

and cycle for a few minutes.5. Press the break to discharge the water.6. Repeat step 1 to 5 with different size of gears.

7. Find out which combination of gears gives morespeed and force.

8. Record the observation.


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results

Combination of

gears

Speed of rotation

(washingmachine)

Small (driver)

with small(follower)

less

Medium

(driver) withsmall

moderate

Big (driver) withsmall

fast


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Combinati

on ofgears

Force is determine by the number of

heartbeats (min)

Avik Bala Lesh Suwet kesh Average

Small(driver)with small(follower)

86 82 87 81 83 84

Medium

(driver)with small

89 85 90 83 87 87

Big (driver)with small

92 89 93 89 90 91


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Combination of gears with number of heartbeats

Number of heartbeats

Combination of gears

80

82

84

86

88

90

92

Small with

small

Medium with

small

Big with

small


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conc lus ion

A big gear (driver) mesh to asmall gear (follower), produce

more speed. This will enable to

increase the rotating speed ofthe washing machine.


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aim

To find out the

effects of gears onspeed, direction

and force.


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hypothes is

When the driver gear turn clockwisethe follower will turn anticlockwise.

Combination of big gear (driver) andsmall (follower) increase the speed inthe model.

Combination of big gear (driver) andsmall gear (follower) increase theforce needed.


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Safety precautions

1. Using gloves when handling materialsuch as gears, wood and toolkits.

2. Keep sharp objects such as gears,

cutters, player and screw driver in a

safety container.

3. Always have a safety box when

handling an experiment.


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Introduction

A gear is rotating machine part having cut teeth or cogs, which match with

another toothed part in order to transmit force. Geared devices can change the

speed, force, direction of a power source. By understanding more about, design

an experiment by using various numbers of teeth in a gear and explain its

principle.In transmissions which offer multiple gear ratios, such as bicycles and

cars, the term gear, as in first gear, refers to a gear ratio rather than an actual

physical gear. The term is used to describe similar devices even when the gear

ratio iscontinuousrather thandiscrete, or when the device does not actually

contain any gears, as in acontinuously variable transmission.
http://en.wiktionary.org/wiki/continuoushttp://en.wiktionary.org/wiki/discretehttp://en.wikipedia.org/wiki/Continuously_variable_transmissionhttp://en.wikipedia.org/wiki/Continuously_variable_transmissionhttp://en.wikipedia.org/wiki/Continuously_variable_transmissionhttp://en.wiktionary.org/wiki/discretehttp://en.wiktionary.org/wiki/continuous


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What do gears do... and how do they do i t?

Gears are used for transmitting power from one part of a machine

to another. In a bicycle, for example, it's gears (with the help of a

chain) that take power from the pedals to the back wheel.

Similarly, in a car, gears transmit power from the crankshaft(the

rotating axle that takes power from the engine) to the driveshaftrunning under the car that ultimately powers the wheels.
http://www.explainthatstuff.com/cranks-and-cams.htmlhttp://www.explainthatstuff.com/carengines.htmlhttp://www.explainthatstuff.com/carengines.htmlhttp://www.explainthatstuff.com/cranks-and-cams.html


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Four different ways to use gears

Gears for speedIn this simple gearbox, I've got (from right to left) a large gearwheel with 40 teeth, a medium wheel with 20 teeth, and a smallwheel with 10 teeth. When I turn the large wheel round once, themedium wheel has to turn twice to keep up. Similarly, when the

medium wheel turns once, the small wheel has to turn twice tokeep up. So, when I turn the large gear wheel on the right, thesmall wheel on the left turns four times faster but with one quarteras much turning force. This gearbox is designed for increasingspeed.


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Gears for force

If I power the same gearbox in the opposite direction, byturning the small wheel, I'll make the large wheel spin aquarter as fast but with four times as much force. That'suseful if I need to make a heavy truck go up a hill, forexample.


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Worm gears

Here an electric motor (the gray box on the right) and along screw-like gear to drive a large gear wheel. Thisarrangement is called a worm gear. It reduces the speedof the motor to make the large wheel turn with moreforce, but it's also useful for changing the direction of

rotation in gear-driven machinery.


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Rack and pinion gearsIn a rack and pinion gear, a slowly spinning gear wheel (the pinion)

meshes with a flat ridged bar (the rack). If the rack is fixed in place,the gear wheel is forced to move along it (as in a railroad). If thegear is fixed, the pinion shifts instead. That's what happens in carsteering: you turn the steering wheel (connected to a pinion) and itmakes a rack shift from side to side to swivel the car's front wheels

to the left or the right. In simple weighing scales, when you load aweight on the pan at the top, it pushes a rack straight downward,causing a pinion to rotate. The pinion is attached to a pointer thatrotates as well, showing the weight on the dial.


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Why we choose a bicycle poweredwashing machine as an innovation?

From the findings we decided to do a bicycle powered washing machine. This

is because a washing machine can cost hundreds and even thousands of dollars a

year to run depending on your type of washing machine, whether or not you use

hot, warm, or cold water, your energy companys prices, watercompanys prices,

and the number of loads you run per week. So, how about a bike pedal-powered

washing machine? Currently, there are many different designs and ideas for pedal

powered washing machines. The goals differ, but they include reducing energy

and water consumption and costs, and increasing accessibility for people who

cannot afford and/or do not have the energy capacity to own conventionally

powered washing machines. By now you are probably wondering how you can

manage to get your hands on a pedal powered washing machine... Unfortunately,

at this time there are no pedal powered washing machines available for mass

production and thus for purchase by consumers.


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ADDITIONAL INFO

If a gear gives you more force, it must give you lessspeed at the same time. If it gives more speed, it has

to give you less force. That's why, when you're going

up the hill in a low gear, you have to pedal much

faster to go the same distance. When you're going

along a straight road, gears give you more speed but

they reduce the force you're producing with the

pedals in the same proportion.


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Factors affecting the experiments results.

1. It will be hard to get a result, if two gears do notmesh together.

2. The speed can only be achieved according to theratio of the gears.

3. It is difficult to find out the ratio of gears which

produce more speed and power.


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Advantages of us ing our b icyc le powered wash ing machine

1. Our bicycle powered washing clothes not only helps in

washing clothes, but contribute in our health because

cycling is a form of exercise for our body.

2. The energy released from our body while cycling is not

wasted because it is used in washing clothes.3. This bicycle-powered washing machine is environment

friendly because we save electricity and water.

4. This bicycle powered washing machine is a reusableconcept because it makes use of old and worn out

bicycle and washing machine.

5. Saves time when compared to washing clothes without


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a machine

6. Cheaper than an electric washing machine and

portable.7. Unlike an electric washing machine, it is not dependent

on electricity - if electrical supply fails, the washing can

still be done quickly.


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Disadvantages of us ing our b icyc le powered wash ing machine.

1. To conduct the bicycle powered

washing machine needs more timeallocation.

2. People with physical disabilities cannotdo this bicycle powered washingmachine.

3. Pregnant woman or elderly people withillness cannot perform such activity.


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Booth Setup for Karnival Inovasi

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