FORM 2
THE PATENTS ACT 1970
(Act 39 of 70)
COMPLETE SPECIFICATION
(See Sect ion 10)
V
TITLE OF INVENTION
FLOOR CLEANING MACHINE APPLICANT(S):
1. Name: Ranjit Mashavsing Gautam
Nationality: Indian
Address: H.No.4-17-6 near jai durga lodge, mill corner, kotwalpura, 431001,
Aurangabad, Maharashtra, India
2. Name: Gajbhiye Harshit Bhimrao
Nationality: Indian
Address: Plot no. 5 panchsheel niwas, navyug colony, bhausingpura, 431002,
Aurangabad, Maharashtra, India
3. Name: Chandge Ashwin Anil
Nationality: Indian
Address: B-42/ 5 CIDCO Waluj MTDC Mahanagar 01 Aurangabad -431136,
Maharshtra, India
4. Name: MSPM's Mandals Deogiri Institute of Engineering and Management
Nationality: Indian university
Address: Railway Station Road Aurangabad - 431005
The following specification particularly describes the invention and the manner in which it is to be performed.

TITLE
Floor Cleaning Machine
Field of Invention:
The present disclosure relates generally to a floor cleaning machine and more specifically, a floor cleaning machine self-powered by a gear mechanism.
Background of the Invention:
A conventional cleaning apparatus is used to clean concrete and asphalt surfaces such as airport tarmacs and city streets, as well as congested areas like university campuses and city parks. These cleaning apparatus require electricity to operate and they are not very easy to handle.
US patent US 5048141 A titled "Floor-cleaning machine with improved brush pressure control" discloses an automatic floor-cleaning and floor-treating machine having improved brush-pressure control. The machine includes a body which is supported on wheels and a frame which is pivotally mounted with respect to the body. At least one rotating brush is mounted on one lateral side of the frame with respect to the pivot axis. The other lateral side of the frame with respect to the pivot axis is connected to one end of a spring. The other end of the spring can be displaced by operation of a motor. A second spring is provided which is connected at one end to the displaceable end of the first spring and at the other end to the frame on the side where the rotating brush is mounted. Preferably, the attachment site of the first spring to the second spring is connected to the actuator arm of a servomotor. It consumes lot of energy and human effort.
There are many new technology invented in electronic floor cleaning machine but their efficiency is quit less and they are having very high cost because of

electronics components. Hence, mechanical floor cleaning machine gives more efficiency, easy handling at lower cost.
Object of the invention:
1. It is the primary object of the present invention to provide a self-powered floor cleaning machine.
2. It is another object of the present invention to power the floor cleaning machines with a novel gear mechanism.
3. It is another object of the present invention to provide power to the gear mechanism with a help of belt and pulley mechanism.
4. It is another object of the present invention to reduce the cost for manufacturing a self-powered floor cleaning machine.
Summary of the invention:
This summary is provided to introduce concepts related to systems and methods for a self-powered floor cleaning machine and the concepts are further described below in the detailed description. This summary is not intended to identify essential features of the claimed subject matter nor is it intended for use in determining or limiting the scope of the claimed subject matter.
In one embodiment, a self-powered floor cleaning machine is disclosed. The self-powered floor cleaning machine comprises a chassis body or frame is the main structure of the machine the mechanism of a bevel gear is connected with the a belt and pulley arrangement followed by the two wheels and the shaft extended from the driven gear is connected by a brush, and water tank is fix over a frame to

supply the continuous water supply by the gravity to clean the floor conduit and a flow control valve to control water flow when the machine standing idle.
Brief description of the Drawings:
Figure-1 shows a self-powered floor cleaning machine in accordance with an example embodiment.
Figure-2shows a bevel gear mechanism of self-powered floor clearing machine in accordance with an example embodiment.
Figure-3shows a belt and pulley arrangement of self-powered floor clearing machine in accordance with an example embodiment.
Figure-4shows wheels self-powered floor clearing machine in accordance with an example embodiment.
Figure-5shows brushes of self-powered floor clearing machine in accordance with an example embodiment.
Figure-6 shows a flow control valve of floor clearing machine in accordance with an example embodiment.
Detailed description of the invention:
The present disclosure relates to a self-powered floor cleaning machine and is explained below with reference to the accompanying drawings in accordance with an embodiment of the present disclosure.

Figure-1 illustrates anisometric view of self-powered floor cleaning machine. The floor cleaning machine comprises a chassis body or frame, a bevel gear mechanism, a belt and pulley arrangement, two wheels, brush, a cleaner storage, a conduit and a flow control valve. The chassis or frame comprises horizontal frame element and vertical frame element connected together at an angle of 135 degree. The vertical frame element has a rack for a cleaning storage. A conduit is attached to clearing storage and the flow of the cleaner is controlled by a valve connected with the conduit. The horizontal frame of the chassis is placed on at least two wheels for easy movement. The axle of the wheel is connected to the belt and pulley arrangement. The horizontal frame of the chassis gives firm support to the belt and pulley arrangement. The belt and pulley arrangement is further connected the bevel gear mechanism with shaft. The relative motion of bevel gear and the belt and pulley arrangement is maintained with the help of shaft. The shaft keyed joint allows relative axial movement when the floor cleaning machine is dragged forward and backward. A brush is connected to the bevel gear with shaft. The chassis is made up of mild steel material which is having capability to sustain all the load acting by the components on the chassis of the floor cleaning machine. The chassis is made from tubular steel which is having circular cross section and having internal diameter 19.76mm and outer diameter is 25.4mm (linch).The angle of frame is kept about 135degree to reduce the pushing effort on the operator.
The material which we are using for chassis and its properties are given below:

Plane carbon steel 0.3% of carbon
Coefficient of friction 0.28
Shear module 7.9E10
Tensile strength 399.82E3 N/rara2
Density 7800kg/mm3

Figure-2 illustrates a bevel gear mechanism for the floor cleaning machine. The bevel gear is used for maximum power transmission in exactly at right angle that is 90 degree. The bevel gear is attached to the horizontal frame element of the chassis. The height and position of the bevel gear can be adjusted within the frame. The Pulley and the brush are connected to the bevel gear with the help of the shaft. The bevel gears are made up of gray cast iron of material standard FG150 (150=ultimate tensile strength). The bevel gears are brittle in nature but they are able to absorb the sudden shock. The bevel gear having gear and pinion are perfectly mesh into each other to transmit the required amount of power to rotate the brush fitted in the self-powered floor cleaning machine.
Figure-3 illustrates a belt and pulley arrangement (2) for the self-powered cleaning floor machine. The belt and pulley arrangement is used for transmitting the power from the wheel to the bevel gear shaft. The arrangement consists of two pulleys and one v-belt. The drive element of the pulley system can be a rope, cable, belt, or chain that runs over the pulley inside the groove. Power transmitting from one shaft to another shaft when the distance between the shafts is up to 0.8 meter. The pulleys are mounted on the shaft continuous belt or rope is passed over them.
Specification for belt:
(1) Angle of groove, 2p=35° or p=17.5°
(2) Pulleys diameter,

• Smaller pulley (rl) =45mm
• Larger pulley (r2) =5 5mm

(3) Tensile strength for belt material, 6(Sigma)= 2mpa = 2 N/mm2
(4) Length of belt= 780mm
(5) Distance between two pulleys (X)= 260mm
(6) Area of belt (b*t)= 7*8mm = 56mm2
(7) Coefficient of friction=0.3
(8) Mass of belt = 52.5 gm for 0.78m & 0.067kg/meter length

STEP-1:
To calculate a:
Sin a = r1- x2/ x
Sin α = 0.055-0.45/0.26
Sin α = 0.03846
α = 2.204
To calculate 6:
For open belt drive,
θ=(180-2a)
= (180-2*2.204)
θ=175.59°
θ= 3.06 rad.
STEP 2: Tension in Belt in tight side and slack side
Let,
Tl=Tension in tight side of belt, and T2=Tension in slack side of belt. Hence,
For derivation of ratio of driving tension for v-belt
2.3 log (T1/T2) = μ θ cosec β
= 0.3*3.06* cosecl7.5
= 3.0528
(T1/T2) = 3.77082 ...(1)
We know, Tl= 6. b. t
=2*106*0.007*0.008

Tl = 112 N and T2 = 29.70 N
STEP 3: Power of Belt.
We know that power transmitted by the belt, P = (Tl- T2)*V.... (V =0.428 m/s) P = (112-29.70)*0.428 P = 35.22 watt Therefore, Power transmitted by v-belt is 35.22 watt.
Figure-4 illustrates wheels for the cleaning floor machine. The horizontal frame of the chassis is placed on at least two wheels for easy movement. The axel (4) of the wheel is connected to the belt and pulley arrangement. The main function of the wheels is to support the chassis and provide the relative motion to the gears and the pulley. The wheels (3) are made up of rubber.
Figure-5 illustrates brushes (5) for the cleaning floor machine. The brush is for the cleaning purpose. Brush is connected to the bevel gear with the help of the shaft key. The brush is made up of nylons and fiber. The brush with bristles, wire or other filaments can be used. The brush consists of a handle or block to which filaments are affixed either parallel- or perpendicular-wise, depending on the way the brush is to be gripped during use. The material of both the block and bristles or filaments is chosen to withstand hazards of its application, such as corrosive chemicals, heat or abrasion.
Figure-6 illustrates flow control valve for the cleaning floor machine. The flow control valve is a valve with a spherical disc, the part of the valve which controls the flow of the cleaner. The sphere has a hole, or port, through the middle so that when the port is in line with both ends of the valve, flow will occur. When the

valve is closed, the hole is perpendicular to the ends of the valve, and flow is blocked. The handle or lever will be in line with the port position letting you "see" the valve's position. The ball valve, along with the butterfly valve and plug valve, are part of the family of quarter turn valves.
Working principle
The self-powered floor cleaning works on the principal of manual effort. When the machine operator pushes the machine with very small manual effort the wheels of the machine rotates and frictional effect with the floor. The motion of the wheels is given to bevel gear mechanism as they are mesh with each other. The- power of wheel is transmitted to the gear in 90degree by using bevel gears. The cleaning brush is fixed with the bevel gear and it get rotates as wheel rotates, But the brush rotation is faster than the wheel. Hence, the floor is clean with less human efforts.
SYSTEM DEVELOPMENT
Calculation for transmitting drives.
To calculate the velocity required to transmit the power for the floor cleaning applications, let assume that the average speed of the person at the floor cleaning is approximately 5Kmph.
Hence,
Mass of the total machine (L) = 15kg approx.
Weight = 15x10 =150N
To calculate the force required to move the machine from rest position is by doing experimentally by Using, spring balance considering that the force required moving the prototype of the machine is

Force = 70N by considering (μ=0.4approx) Assumption
1. Force required after it moves from rest is 20% less than the actual force.
2. The machine cover 3 meter distance in 7 second when the wheels will rotates one complete revolution.
3. The brush will complete 3 revolutions when the wheels will rotates one complete revolution.
Hence:
Distance =3m
Time = 7sec
Mass of the machine = 15kg
To find velocity
V= Distance traveled/time
V=3/7 V=0.4728m/s To find Acceleration Acceleration= velocity/time
A= 0.428/7 A=0.016m/s2 Force = mass* acceleration
= 196.2*0.061 F =12N Work = force*displacement
W=12*3 W=36.036N-m

To calculate power
Power =work done/time Work done= force x displacement Work done = 36.036Nmm Power = 36.036/7 Power = 18.25watt
To calculate torque:
Torque = P*60/2*3.14*N
N = Revolution per minute
N= Distance/3.14*diameter of wheel
N= 3000/ 3.14*200
N= 4.77rps approximately 5 revolution per second
N= 5*60 N= 300rpm
Torque = 18.25*60/2*3.14*300
Torque = 0.580Nmm
Diameter of larger pulley (D) = 110mm R = 55mm
Diameter of smaller pulley (d) = 90mm r = 45mm
To calculate a:
Sin a = R-r/x (x = centre distance between pulley 0.26m)
Sin a = 0.055-0.45/0.26
Sin a = 0.03846
a = 2.204
To calculate 8:

For open belt drive,
θ=(180-2α)
θ= (180-2*2.204)
θ=175.59°
θ= 3.06 rad.
Let,
Tl=Tension in tight side of belt, and T2=Tension in slack side of belt.
Hence,
For derivation of ratio of driving tension for v-belt
2.3 log (T1/T2) =μ θ cosec β
= 0.3*3.06* cosecl7.5
= 3.0528
(T1/T2) = 3.77082 ...(1)
We know, Tl= 6. b. t
=2*106*0.007*0.008 Tl = 112 N and T2 = 29.70
To find out the diameter of shaft
∑Fx = 0 ∑Fy = 0
Reaction of the load acting on the shaft ( ↑ +Ve↓ -Ve )
RD + RE -7.8 -2.94- 2.94=0
RD + RE = 13.68 (1)
Taking moment about point D ( +Ve —Ve)
∑MD=0
(2.94*570) - (RE*500) + (7.8*250) - (2.94*70)

500RE = 1675.8 + 1950 - 205.8
RE = 6.84N Putting the value in (1)
RD = 6.84N
Binding the maximum moment
Bending moment at the end of the shaft will be zero i.e (A and C = 0)
B.M at D = -2.94*70
= -205.8 Nmm
B.M at E = -2.94*70
= -205.8 Nmm
B.M at B = -2.94*20+6.84*250
= 1651.2Nmm
Therefore the maximum bending moment is at point B = 1651.2N
Te = (M2+ T2)1/2
Te = (1651.22 + 5802)1/2
Te= 1750.01
3.14/16*D3*τ= 1750.01
Material for shaft is Fe290 (Ultimate tensile stress = 290N/mm2 and
F.O.S = 3)
Allowable shear stress = Ultimate tensile stress / F.O.S
τ = 96.66Nmm
D3 = 1750.01/3.14/16*96.66
D = 4.517mm
Design of bevel gear
Bench mark data
P= 18.25 watt
T = 580 N.m

N = 300r.p.m Material for gear is FG150 with FOS = 3
Ultimate tensile stress = 150N/mm2
Beam strength = ultimate tensile / FOS
6b = 150/3 = 50N/mm2
No. of teeth on pinion (Tp) =19
No. of teeth on gear (Tg) = 25
Step 1: Formative no of teeth
TEP = Tp/ cos 6p
G = Tg/Tp
G = 25/19
G = 1.35
Tanθp = 1/G
θp = 37.234
TEP=19/cos37.234
TEP =23.86
TEG = Tg/cos 0g
θg = a - 0p
θg = 90-37.234
θg = 52.776
TEG = 25/cos52.776
TEG = 41.3269
Step 2: Tooth form factor
The tooth is 20° full depths involute ... (From design data book)
Tooth form factor for pinion.
Yp = 0.154-0.912/Tp

Yp = 0.154-0.192/19
Yp = 0.466
Tooth form factor for gear.
Yg = 0.154 -0.912/Tg
Yg = 0.477
Since, from the above value we can say that the pinion is weaker due to less no of tooth the both as well as pinion are made up of same material.
Step 3: Pitch line velocity
V=3.14DN/60
Hence, D= m*Tp
V=3.14*m*Tp*N/60
V= 0.826module
Velocity factor (Cv) = 6.1/6.1+V
Cv = 6.1/6.1+0.826
Step 4 : Lewis equation 6b = 150/3 = 50N/mm2
Fb = 6b*b*m*3.14*Yp(l-b/Ao) (b=10module)
Fb = 50*10m*m*3.14*0.466*(l-l/3)
Fb = 487.99E6m2N/mm2 (a)
Step 5: Effective loading Feff=P/V*Cs/Cv
Feff = 18.25/0.826m*6.1+0.826m/6.1 (b)
Comparing equation (a) and (b) we get
Fb = Feff
487.99E6m2*0.826m*6.1= 18.25+6 .l+0.826m
134.728 E6m3 = 6.1 + 0.826m

Module (m) = 3.55 mm approximately 4mm
In the foregoing description, the systems and methods of the present invention have been described with reference to a number of examples that are not to be considered limiting. Rather, it is to be understood and expected that variations in the principles of the systems and methods herein disclosed may be made by one skilled in the art, and it is intended that such modifications, changes, and/or substitutions are to be included within the scope of the present invention as set forth in the appended claims.

Claim
I/We claim:
1. A self-powered floor cleaning machine comprising:
a chassis body or frame placed on at least two wheels comprising a horizontal frame element and a vertical frame element, further the vertical frame element has a rack for a cleaning storage and a conduit;
a belt and pulley arrangement connected to axle of the wheels in the horizontal frame element;
a bevel gear mechanism connected the belt and pulley arrangement with the shaft, further the bevel gear mechanism is connected to the brushes wherein relative motion of bevel gear and the belt and pulley arrangement is maintained with the help of shaft
2. The self-powered floor cleaning machine as claimed in claim I wherein said horizontal frame clement and vertical frame clement arc connected together at an angle of the range of 130 degree to 140 degree.
3. The self-powered floor cleaning machine as claimed in claim 1, wherein one end of said conduit is connected to said cleaning storage and second end is kept free open.
4. The self-powered floor cleaning machine as claimed in claim 1, wherein a valve is connected to said conduit.
5. The self-powered floor cleaning machine as claimed in claim 1. wherein slot of the said bevel gear is fixed at 90 degree.
6. The self-powered floor cleaning machine as claimed in claim 1, wherein said belt and pulley arrangement consists of at least two pulleys and one v-belt, wherein smaller pulley has diameter 45mm and larger pulley has diameter 55mm and the distance between smaller pulley and larger pulley is 260mm.

7. The self-powered floor cleaning machine as claimed in claim 6. wherein one of the said two pulieys is connected to axie of the wheels and another pulley is connected to the bevel gear, wherein pinion of said bevel gear has 19 number of teeth and gear of said bevel gear has 25 number of teeth.
8. The self-powered floor cleaning machine as claimed in claim 1, wherein said brush is connected to the bevel gear with the help of the shaft key.