International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 04 | Apr -2017
p-ISSN: 2395-0072
www.irjet.net
To Overcome the Problem of Air during the Electricity Cut in summer by Foot Operating Paddle Fan Ajeet Singh Sikarwar1, Anand Kumar2, Neelam Baghel3 123Asst.
Prof., Mechanical Engg. Deptt.,IITM, Gwalior,M.P.,India
---------------------------------------------------------------------***--------------------------------------------------------------------2. THEORY
Abstract – In the modern era the technology is higher, seeks
into more facts of daily uses the old fashioned singer’s foot powered mechanism of sewing machine has not quiet gone out of style. Paddle fan is being designed to problem of power cut off during summer season. As it uses very less human power with higher power output makes it the best for commercial as well as domestic uses rather than hand fan. Further it will also be an exercise machine but no expensive to pay and helpful mainly for arthritis disease. This mechanism, utilizes the mechanical power to generate the electricity and it also works as a grinding machine, if grinding wheel is attached on the output shaft. Key Words: Paddle fan, Flywheel, Pulley, Gear, Frame, Shaft, Treadle. 1. INTRODUCTION
The paddle fan is a mechanical device which runs on the basis of foot pressed treadle mechanism used in sewing treadle machine. It can run from 600 to 800 rpm. It uses very less human power and gives smooth operation. It has been designed to overcome the problem of power cut during summer seasons as new batteries per year are not affordable to all together with electricity expense. Further, it is much better than hand fan namely (pankha).
Paddle is operated by human feet requires maximum effort once and runs continuously for certain period due to inertia effect of paddle as well as flywheel next requires much less effort for continuous motion. Paddle is like a lever whose mechanical advantage is kept greater than one (M.A.>1, & L1 > L2) with specific dimension, requires less effort and obtains much greater effective force for driving flywheel. The line of action of force is kept along the central axis of pitmen whose one end is connected to the crank and one end is connected to paddle aligned in a plane for full effort transmission. Further fan is being designed for running up to 800 rpm, therefore a small diameter pulley will be mounted to the output shaft to achieve those rpm and driven by the rope drive through large sheave, thus motion transforms. Rotor of fan may be designed later for better CFM (discharge at cubic foot per minute). As India is a developing country, poverty is the greatest problem. The paddle fan is low cost equipment provides sufficient discharge rate with easy operation.
3. METHODOLOGY Oscillatory motion of treadle is converted into rotational motion of flywheel (large diameter sheave) through a link (pitmen). It is similar to the power transmission from the piston to the crankshaft via connecting rod.
3.1 Components of Paddle Fan TREADLE A Treadle is a big paddle like a lever that tips back & forth by applying effort through human feet during sitting on chair shown in figure. This action moves a push rod (connecting rod or pitmen) up and down, which cranks a flywheel results power at main shaft. Fig. 1 Treadle mechanism of Singer’s sewing machine
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