LOPIFIT E BIKE

Abstract:

This project deals with conversion of a conventional bicycle into treadmill electric bicycle. In this bicycle the frame of the bicycle is completely modified and the treadmill is placed in between the two wheels, on which user will walk. As the user walks or runs on the treadmill the belt moves to the rear. At the rear roller RPM Sensor is attached to the roller from where Sensor will sense the speed of the roller and accordingly it will send signal to motor. The motion of motor is transmitted to the front wheel by which we can get the motion of wheel and bicycle runs. The system is expected to move as heavy weights up to 150 KGs approximately. The aim of the project work is to design and fabricate a walking cum cycle mechanism that makes much easier to move people from one place(section) to the other even while processing in the factories, industries, etc.

Introduction:

Renewable energy is reliable and plentiful and will potentially be very cheap. Renewable energy can be locally produced and therefore is not vulnerable to distant political upheavals. Many of the safety concerns surrounding fossil fuels, such as explosions on oil platforms and collapsing coal mines, do not exist with renewable energy. Renewable energy produces only minute levels of carbon emissions and therefore helps combat climate change caused by fossil fuel usage. Most renewable energy comes either directly or indirectly from the sun. Sunlight, or solar energy, can be used directly for heating and, for generating electricity, and for hot water heating, solar cooling, and a variety of commercial and industrial uses. Solar panels convert the sun's light in to usable solar energy using N-type and P-type semiconductor material. When sunlight is absorbed by these materials, the solar energy knocks electrons loose from their atoms, allowing the electrons to flow through the material to produce electricity. This process of converting light (photons) to electricity (voltage) is called the photovoltaic (PV) effect. Currently solar panels convert most of the visible light spectrum and about half of the ultraviolet and infrared light spectrum to usable solar energy.

Importance of  Lopifit  and Treadmill Bike:

1. The treadmill is a relatively easy piece of exercise equipment to use
2. The treadmill has a predictable surface that is much easier to negotiate than sidewalks, curbs or trails and the risk of tripping is reduced
3. All aspects of the workout can be controlled by the user: speed, incline, warm up period, cool down period, and energy spend
4. Generally, users can design custom programs to fit the time they have to exercise
5. Multiple users can use the same equipment without adjusting the structure
6. Some treadmills have special features such as step counters and heart rate monitors so fitness progress can be tracked
7. Running on a treadmill generally burns calories faster than most other forms of in-home exercise, such as biking

There are many health benefits to regular exercise, including an increase in the strength of the heart, weight loss, and decreased insulin resistance. Walking or running on a treadmill is great exercise and puts less stress on the body than walking or running on a flat outdoor surface. Treadmills also offer the option for careful monitoring of the heart rate and blood pressure for patients that are in poor health or have heart problems. This information helps the patient determine how much exercise they can do and when it’s time to stop. Here is some information about the health benefits of exercising on the treadmill.

The treadmill bicycle is a totally new way of moving. With the electric assist it takes less effort to walk then “a walk in the park”. It is the combination of the DC motor, Hall Effect Sensor and amplifier boosting your walking pace up to the higher speed. Increased use of fuel has resulted in increase of pollution and degradation of natural resources. With increasing population and their need, it has become necessary to control the use of fuel and decrease the pollution; so as to make it avail it’s important to our coming generation. Due to heavy busy schedule people are not able to give attention to their health and physical fitness. As it uses no fuel so it saves energy simultaneously it can be used as treadmill and Bicycle. No need to use it as conventional treadmill in closed room; you can roam on roads also.

Problem Statement:

1. In our day to day life we see that many people’s use bikes cars as a source of This results in environmental pollution and fuel consumption.
2. In manual treadmill the motion of the treadmill is rough to overcome this we use a motor to rotate the
3. Batteries which are widely used in automobile sector is not rechargeable thus when they disposed create
4. To improve all above phenomenon, we take initiative by designing something which would help to reduce these harmful phenomena.

Objectives:

While working out in gym people use treadmill for jogging and running. The main disadvantage of this treadmill is, it is stationary at particular place so sometimes people get bored by jogging at same place without any exposure to natural atmosphere. For travelling over short distances people often use a commercial vehicle which causes pollution and unnecessary wastage of fuel. So, we came to a solution for this type of problem by providing wheels to the treadmill and the concept is termed as treadmill electric bicycle. The main objectives of the treadmill electric bicycle are

1. Pollution
2. Useful for exercise
3. To reduce the use of non-renewable energy

Working of Treadmill Electric Bicycle:

The treadmill cycle is driven manually, more or less the same effort is required to drive the bike as the effort required in treadmill, and it consisting of DC motor and batteries are connected to it to run when various gear arrangements and two shafts provided to change the motion. The treadmill cycle will be the best in its segment.

Table 1: Components used in Lopifit electric bicycle

Components:

Bearings:

Single row deep groove ball bearings are the most widely used roller bearing type in the world due to their versatility and overall performance. They are characterized by having deep raceway grooves in which the inner and outer rings have circular arcs of slightly larger radius than that of the balls.

Treadmill:

 A treadmill is a device generally for walking or running while staying in the same place. Treadmills were introduced before the development of powered machines, to harness the power of animals or humans to do work.

Free wheels:

 In mechanical or automotive engineering, a freewheel or overrunning clutch is a device in a transmission that disengages the driveshaft from the driven shaft when the driven shaft rotates faster than the driveshaft. An overdrive is sometimes mistakenly called a freewheel.

Tread Belt

Tread belt comes in one-ply and two-ply options. One-ply tread belts are basically the cheapest option, needing replacement over time whereas two-ply tread belts are thicker and last much longer. Some tread belts come with cushioning and impact absorption which is highly recommended for your joints and comfort level. People with muscles or joint problems or obese users are advised to opt for a more cushioned running surface. Tread belts having harder surface may be used but cushioned docks are highly recommended. This is an important feature as it will help to make impact less jarring to your joints. Many treadmills can cushion up to 23% of the impact, with 12-14% being the average

Electric Bike Battery:

Electric bike batteries typically come in 24V, 36V, 48V and 72V batteries. Here is another analogy: electricity is water. If it is water flowing through the wires (tubes), then higher voltage means that the water (energy) moves 119 | P a g e faster, and through a smaller tubes typical battery is 36V on most E-Bikes with some at 24V and some at 48V. the electric bike manufactures spec these because they provide a good power to cost ratio.

Throttles:

We have two types (thumb & twist split) for your preferential option. The function of both types is to control the driving speed.

Brake Handles:

It's specialized to brake and cut off the current transmission to the motor.

Pedal Assistance Sensor:

If you turn on the motor power while riding, PAS will send a signal to make the motor work and assist you ride easier. Simply speaking, riding with pedal assistance sensor is very helpful to save your energy.

Battery:

It's the key component, also the most expensive one in the kits. A good battery can upgrade an electric bike to a higher level. PAPAMOTOR adopts the lifepo4 Battery Pack Which has a longer lifecycle than a SLA with the same Specification, and lighter much, also with much better Performance.

Materials used:

The materials used in this project are detailed as   Follows

1. Mild
2. Nylon rubber fabric.
3. PVC (polyvinyl chloride).

Mild Steel:

The frame of treadmill and front & rear rollers are made up of mild steel.

Reasons:

1.Mild steel is readily available in market.

2.It is economical to use.

3.It is available in standard

4.It has good mechanical properties. It is easily machinable.

5.It has moderate factor of safety, because factor of safety results in unnecessary wastage of material and Heavy selection.

6.It has high tensile strength.

7.Low co-efficient of thermal

Properties of Mild Steel:

M.S. has carbon content from 0.15% to 0.30%. They are easily wieldable thus can be hardened only. They are similar to wrought in properties. Both ultimate tensile and compressive strength of these steel increases with increasing carbon content. They can be easily gas welded or electric or arc welded. With increase in the carbon percentage weld ability decreases. Mild steel serves the purpose and hence selected because of above purpose.

Nylon Rubber Fabric: 

Standard material available for tread belt is nylon fabric. So we use this material for treadmill belt. Nylon rubber fabric is cheap and easily available, less in cost & having property of wear resistance.

PVC (Polyvinyl chloride):

PVC pipes are used as a supportive roller in treadmill frame. PVC pipes are used because those are light in weight, easily available, cost is less and also having a smooth surface finish which gives smooth motion of belt on the surface of supporting rollers.

Design Methodology:

In our attempt to design a walking bike, we have adopted a very careful approach. Total design work has been divided into two parts mainly,

1. System
2. Mechanical Design

System design mainly concern with the various physical concern and ergonomics, space requirements, arrangement of various components on the main frame of treadmill, arrangement of tread belt and rollers, position of braking system, arrangement of motor, sprockets, ease of maintenance, scope of further improvements, ground clearance etc. In mechanical design, the components are categorized into two parts.

1. Design Parts
2. Parts to be

For design parts, detailed design is done and dimensions thus obtained are compared to next highest dimensions which are readily available in the market. This simplifies the assembly as well as post production servicing work. The various tolerances on work pieces are specified in the manufacturing drawing. The process sheets are prepared and passed on to the manufacturing drawing. The process sheets are prepared and pass on to the manufacturing stage. The parts are to be purchased directly are specified and selected from standard catalogue.

Design of main frame components:

Treadmill Frame design:

Material- Mild Steel.

As the standard available tread belt size is (980*340) mm. Frame design is done according to the tread belt size. As per space availability and clearance for reduction of friction, frame size is (1090*410) mm. Frame consists of a 21 rollers, in which first and last roller is for movement of belt and other are supportive rollers. Rollers are fitted in frame by means of bush.

Rollers: Front and Rear Roller width of the frame is 410 mm. So we choose length of rollers as 400mm. To reduce the friction of belt with Frame 5 mm clearance is provided on both sides. Front roller is of diameter 58mm and that of rear one have diameter 49mm. For easy and fast movement of belt Some taper should be provided to belt that’s why front roller is large in diameter and rear is in small diameter. Rollers are connected to frame by using MS rod of diameter 10 mm. PVC bush are placed in front roller and deep groove ball bearing 6000, which is use for light weight operation is used. Rear roller is directly welded to 10mm MS rod.

Supportive Rollers:

This roller serves the purpose of support to the tread belt. 19 supportive rollers are fitted in frame structure. They are made up of a PVC material. The PVC pipes have diameter of ¾ inch that is

19.05 mm and length is 390mm.All the design calculation of frame and rollers is done on the basis of load carrying capacity of walking bike and Space availability. Load carrying capacity of walking bike is 100kg.

Disadvantages:

1. They can be expensive.
2. Treadmills provide a limited kind of exercise - walking to running - so some people find treadmills boring after a while
3. They can take up a lot of The more sophisticated treadmill bike take up a fair amount of space.
4. Due to some drawbacks this cannot be used on the road.

FUTURE IMROVEMENTS

Walking bike has some advantages and some disadvantages. the main disadvantage of walking bike is its discharging battery. Due sudden discharge of battery in between of travelling leads to face many problems to overcome this disadvantage we can do some improvements in present model. To overcome this discharge problem we can install a solar panel to the system it will recharge the battery and continuous movement of walking bike can be possible. Solar panel is one of the simplest ways to charge the battery. Another way is generation of electricity by using dynamo generator. The mechanical energy generated by human due to walking on tread belt is converted to electrical energy by using dynamo generator. It will produce a small amount of energy. Small increment of energy in rechargeable battery will move the bike continuously.

Conclusion:

We developed a branch and bound approach which is coupled with quick, effective bounds to optimize the “Treadmill Electric Bicycle” which serves the purpose of exercise and travelling and also reduce the use of non- renewable energy resources. By this project we are creating a platform in which mechanical energy is converted into linear motion. By using our simple walking nature, we are changing it to a good running speed by which we are not only saving energy but also recreating a formula of using small investment to a big amount of achievement. This prototype can be a good promoted area to use the energy being wasted on treadmills in fitness centers. By using this prototype, we can not only save energy but also create a new idea of energy distribution in electrical field which is a common need to everyone in future.