Table of Contents
Design and Fabrication of Treadmill Bicycle – Mechanical Projects
ABSTRACT:
This paper deals with conversion of a conventional bicycle into treadmill 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.
Problem Statement
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 walking bicycle.
Read more – Design and Fabrication of Power Generating Manual Treadmill
Objectives
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.
Working
This is working of treadmill bicycle

METHODOLOGY
We are using DFM for our paper. Design for manufacturability also known as design for manufacturing. DFM is the general engineering art of designing products in such a way that they are easy to manufacture. The concept exists in almost all engineering fields. Depending on the manufacturing technology the application differs widely. DFM describes the process of designing a product for facilitating the manufacturing process and reducing its manufacturing costs.In DFM, the potential problems are fixed in the design phase which is the least expensive place to address them.
Other factors which may affect the manufacturability are: type of raw material, the form of the raw material, dimensional tolerances, and secondary processing such as finishing.
Designed component
The components that we designed are chassis, fork, axle of bicycle and treadmill, handle, treadmill roller and side frame of treadmill. First of all we studied various types of each components stated above. Then we select particular type of each component. Then we identified specific function of that component. After this we did material selection based on functional requirement. Then we identified material properties from manufacturing catalogue. Then we identified permissible stress using suitable factor of safety. After that we did stress analysis for various components, on Ansys software, then dimensions whose stress in within permissible limit is selected.

Arduino
Arduino is the heart of electronics circuit. A programme is stored in Arduino which controls the current. It also controls the speed of DC motor.
Brushless DC Motor
Brushless DC electric motor also known as electronically commutated motor ECM. Brushless DC motors are powered by a DC electric source by an integrated inverter or switching power supply, which produces an AC electric signal to drive the motor. In brushless motors, permanent magnets rotate around a fixed armature. Commutation with electronics has large scope of capabilities and flexibility. BLDC motor known for smooth operation, and holding torque when stationary. Additional sensors and electronics control the inverter output amplitude and waveform. Therefore percent of DC bus usage/efficiency and frequency i.e. rotor speed.
CONCLUSION
Exercise
Treadmill bicycle helps in maintaining proper physique. Physical fitness is of utmost importance in day to day life. People often get bored while exercising in a closed room such as gym. By using treadmill bicycle one can exercise outdoors in fresh air.
Fuel saving
People often use vehicle for travelling over short distance. This causes unnecessary wastage of fuel. Due to use of treadmill bicycle over short distance a large amount of fuel can be saved.
Travelling
Treadmill bicycle can be used for travelling over short distances. One can also exercise while travelling over short distance.
Eco- friendly
Treadmill bicycle does not require any fuel. Therefore it does not emit any pollutants. So it is an eco-friendly vehicle.
More Resources /articles
Robotic and automation projects List - Abstract , Report
Pedal Operated (Bicycle ) projects
Simple , Easy mechanical projectsManually Hand Operated projectsAffordable low budget Projects
New Mechanical Projects 2020 ( All Projects Post Index List )
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