1. Design and Fabrication of Pedal Powered Washing Machine (DONE)

International Journal of Computer Trends and Technology (IJCTT) – volume 3 Issue 6 Number 1 – Nov 2012

DESIGN AND FABRICATION OF PEDAL POWER

WASHING MACHINE

ABSTRACT
In the developing world, washing laundry is a difficult, time-consuming

task the falls solely on women. Mothers and daughter typical spend 8 hours
each week scribing each piece of their family’s clothing and writing out the
harsh washing solution by hand.

Powered washing machine exist, but they are impractical in rural reasons
because running water and electric are expensive or unavailable. Several groups
already tried to build a machine for the regions but they have been unsuccessful.
Their machines were either to build and repair because they improved parts or
they do not wash effectively.

Our invention is a low cost, pedal power washing machine that designed
around readily available parts. Its innovation is its simple design and its use
inexpressive plastic barrel and bicycle components. The parts are available
locally, so we can be manufactured and repaired in the community without
depending on imported goods.

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International Journal of Computer Trends and Technology (IJCTT) – volume 3 Issue 6 Number 1 – Nov 2012

1. INTRODUCTION:-

In our developing country, rural women are among the least privileged. Women are
both essential to the family unit and integral to the economy, yet they rarely have equal
opportunities for career development, or social status when compared to men. One factor
behind the inequality is the long list of responsibilities that traditionally fall to women. Not
only do women perform agricultural duties and care for livestock alongside men, but women
are also responsible for many domestic works. Usually, new technology improves people’s
efficiency, but women benefits less from new technology for several reasons. First, women’s
duties are neglected by technological improvement efforts because of domestic works are
often seen as cultural obligations for women little efforts is expended to diminish them.

Second, foreign aid in the form of appropriate technologies is unevenly distributed
because women are often considered less technically competent than man. Factors like this
these tend to prevent the development of improvement technology for women’s
uncompensated, time-consuming, and laborious task. Our team intends to directly address the
plight faced by laborious task. Our team intends to directly address the plight faced by
women by developing a pedal-powered washing machine. An average woman may do two to
three loads per week for a family about four children and her husband. It generally takes at
least 8 hours of washing time , not including the extra time needed to walk to the public
washing machine reservoir or hang up clothes to dry.

Additionally, while washing machine clothes by hand, women spend hours learning
over a concrete basin. Clothes are washing by laboriously scrubbing each section of clothes
over a cement washboard with their hands immersed in detergents that are harmful to the
skin.

The pulley works like the wheel on the bike. The belt attaches it to the generator. This
allows the work done on the bike to be translated to the generator. The belt and the pulley are
each one of six simple machines, commonly used for all sorts of mechanical projects.

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International Journal of Computer Trends and Technology (IJCTT) – volume 3 Issue 6 Number 1 – Nov 2012

On pedal power devices the type of pulley needed is divided between whether the
pedal-power device replaces a motor device (as in the case of the washing machine), or if the
pedal power device generates electricity (as in the pedal-powered television) The motor-
replacing devices commonly use a shaft-mounted drive pulley. However the pulley for
electricity-generating devices uses a fan belt.

BEVEL GEAR http://www.ijcttjournal.org Page 22
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International Journal of Computer Trends and Technology (IJCTT) – volume 3 Issue 6 Number 1 – Nov 2012

BALL BEARING

A ball bearing is a type of rolling-element bearing that uses balls to maintain the
separation between the bearingraces.

The purpose of a ball bearing is to reduce rotational friction and support radial and
axial loads. It achieves this by using at least two races to contain the balls and transmit the
loads through the balls. In most applications, one race is stationary and the other is attached
to the rotating assembly. As one of the bearing races rotates it causes the balls to rotate as
well. Because the balls are rolling they have a much lower coefficient of friction than if two
flat surfaces were sliding against each other.

Ball bearings tend to have lower load capacity for their size than other kinds of
rolling-element bearings due to the smaller contact area between the balls and races.
However, they can tolerate some misalignment of the inner and outer races.

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International Journal of Computer Trends and Technology (IJCTT) – volume 3 Issue 6 Number 1 – Nov 2012

BICYCLE PEDAL

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International Journal of Computer Trends and Technology (IJCTT) – volume 3 Issue 6 Number 1 – Nov 2012

BOLTS & NUTS http://www.ijcttjournal.org Page 25

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International Journal of Computer Trends and Technology (IJCTT) – volume 3 Issue 6 Number 1 – Nov 2012

A nut is a type of fastener with a threaded hole. Nuts are almost always used
opposite a mating bolt to fasten a stack of parts together. The two partners are kept
together by a combination of their threads' friction, a slight stretch of the bolt, and
compression of the parts. In applications where vibration or rotation may work a nut
loose, various locking mechanisms may be employed: Adhesives, safety pins or lock
wire, nylon inserts, or slightly oval-shaped threads.

The most common shape is hexagonal. for similar reasons as the bolt head - 6
sides give a good granularity of angles for a tool to approach from (good in tight
spots), but more (and smaller) corners would be vulnerable to being rounded off.
Other specialized shapes exist for certain needs, such as wing nuts for finger
adjustment and captive nuts for inaccessible areas.

BOLTS

Bolts are defined as headed fasteners having external threads that meet an
exacting, uniform bolt thread specification such that they can accept a no tapered nut.

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International Journal of Computer Trends and Technology (IJCTT) – volume 3 Issue 6 Number 1 – Nov 2012

cutting, as well as for more closely controlled operations. Each process has particular
capabilities and limitations. Special applications include shape cutting, grooving,
gouging, and underwater cutting.

Operation on the part of the assemblies

GEAR
Facing, Taper turning, Drilling, Boring, Gear tooth cutting of module 3.
SHAFT
Facing, Turning, Grooving, Drilling, Internal thread cutting of equal pitch.
WASHER
Facing, Turning, Drilling and internal thread cutting.
HANDLE
Facing, Turning, Drilling and internal thread cutting.
BASE & COLUMN
Drilling, Boring, Surface Grinding, Electric arc welding.
All operation has been done with specific dimension.

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International Journal of Computer Trends and Technology (IJCTT) – volume 3 Issue 6 Number 1 – Nov 2012

CALCULATION
DESIGN CALCULATION:
FOR OPEN BELT DRIVE:

Warp angle – small pulley = αs =

=
=
=
= -17.59°
Warp angle – large pulley =

=

Length of belt =
=23.8°
= L = 2C+(

2*250+(
= 861.29+8.1
= 869.39mm
= 86.9cm

(where D= diameter of large pulley
d= diameter of small pulley
C= centre distance of 2 pulley)

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International Journal of Computer Trends and Technology (IJCTT) – volume 3 Issue 6 Number 1 – Nov 2012

CONSTRUCTION

Construction a cylindrical drum using metal of require dimension. Present the bicycle
and make the bicycle carriers using tube, angles or other flat irons available. All elements are
together to the bicycle. Slots are drilled into the plates, which allow for the adjustment of teh
voltage belt. Place the bicycle on the chassis, measuring using a string the length of the belt if
necessary. Drill hour holes into the flame and secure. Use chain to transmit power from pedal
to pulley putting it in place, tighten tender and the machine is ready effectively.

Clean your clothes, the rotation of the tank should not be too fast about 70- 80 rpm.
Manufacture, use and maintenance of the pedal powered washing machine is available.

GEARING

The machine uses a regular mountain bicycle transmission which can provide gar
ratios between 1:1. The user is expected to turn the pedal of the machine about 70 rpm the
wash cycle and a higher 80 rpm during the dry cycle, where the lack of resistance from makes
pedalling easier. With a inner drum diameter of 19in, at a 1:1 gear ratio, pedalling at 70rpm
results in a centripetal acceleration on the clothing of about 0.87g, which results in efficient
clothing tumbling. For the spin cycle, the user would which switch to the highest available
gear, and a pedal speed of 80 rpm in an acceleration of 20 kg. This has been shown to extract
50% of water from wet cotton clothing; remaining water weight in clothing is approximately
90% of the dry fabric weight comparable to commercial vertical axis washing machine.

WORKING PRINCIPLE

Basically it’ separate like as a washing machine. But in this project we don’t use the
electric power to move the washing machine wheel. We are using cycle pedal; by pedalling
the washing wheel be moving. We use in it two pulley which ratio is 1:4, means when small
one is moving 4 times big one is rotating ones. After the power transfer through a bevel gear,
though another pulley; which is connect to the end of the bevel gear. When we moving the
first pulley 1time; means the washing pulley will rotate 16times. During, this clothes will be
wash.

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International Journal of Computer Trends and Technology (IJCTT) – volume 3 Issue 6 Number 1 – Nov 2012

CONCLUTION

As per curriculum vitae of mechanical engineering we introduced pedal powered
washing machine. We introduced this for an alternative for washing machine in this power
cry sis situation. Here, we are having a low cost washing machine with cycle power, it can be
used as an exercise equipment. It is a low cost, economical & energy saving.

REFERANCE

1. Gitin M Maitra, (2002) ‘Hand book of gear design’ second edition, helical gear p.p. 3.1-
3.44.
2. S.K.F Industries (1991) ‘bearing design table’ p.p 9-10
3. T. Jayachandra Prabhu (2008) ‘design of transmission elements’ helical gear p.p. 2.1-2.15

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