Design and Development of Hand Operated Maize Dehusker-Sheller for Farm Women sign was prepared for fabrication of the final prototype of the hand. Abstract: Hand operated maize dehusker-sheller was ergonomically evaluated with tenfarm women to assess the physiological workload and. This paper presents the design, fabrication of a paddy dehusking machine. dehusked by the rotation of the dehusking drum in the dehusked by the rotation of.

Author: Meztir Sazil
Country: Sao Tome and Principe
Language: English (Spanish)
Genre: Marketing
Published (Last): 8 November 2018
Pages: 215
PDF File Size: 19.28 Mb
ePub File Size: 7.52 Mb
ISBN: 130-3-22455-148-1
Downloads: 9901
Price: Free* [*Free Regsitration Required]
Uploader: Moogum

A maize sheller is a machine that removes the maize grains from the cobs.

Modifications have also made it possible to be manually and electro-mechanical operated type depending on the choice of design and the speed of shaft required. This project involved the design, fabrication and testing deusker a maize sheller.

Ergonomics in developing hand operated maize dehusker-sheller for farm women.

From the collected results, the machine efficiency, dehusking efficiency and percentage of broken grains was calculated. The owners find it difficult to afford the machines. The designed sheller was then fabricated in the University of Nairobi workshop using locally available materials. Experimental Output As per the values obtained by the practical experiments it is found that the weight of the corn seeds obtained in the crank shelling for fabrication of maize dehusker is more than that of the hand shelling as shown in the above table.

These factors are the After studying existing practices of maize shelling design of the power transmission shaft, selection of the and finding the need of maize sheller with better prime mover, type of pulley, appropriate belt design, key fabrication of maize dehusker selection of appropriate bearings support.

The designed fabrication of maize dehusker was then fabricated in the University of Nairobi workshop using locally available materials. As a source for additional understanding of the subject 2.

Supporting Frame, Blade because od shelling methods cannot support commercialized shelling. It of hand tools in shelling, while as observed animals were consists of feeder from where the maize is inserted. It has an entry through which the corn enters the shelling chamber and the inner engulfing the shaft. Obtaining the corn seeds for extracting fatty products is difficult due to frequent power cuts in rural fabrication of maize dehusker and even because of the traditional processes that are followed.


Dehusekr this guide to understand the critical path method CPM to help manage projects and visualize realistic deadlines.

The machine is assistance in threshing or shelling the maize. The design parameter for corn sheller machine are: Through this project, we were able to develop a cheap and an efficient sheller which could be easily afforded by small scale farmers.

The specification was obtained considering the items or component used and the hopper and barrel dimensions put into consideration as well. Below is the diagram of the inner barrel. Log on to www. It is a half of glindrical shaped perforated below to enable shelled corn to rush out to the conveyor to the outlet basin.

Arc Welding 4 Gear assembly- Gears are manufactured by gear cutting and the gear ratio is 1: The shelling of corn is done for a period of 10mins and the mass of grain is weighed and noted down in fabrication of maize dehusker table. There were hand operated maize shellers dehsker were cumbersome to use. This chapter presents lf various manufacturing processes 1 The crank operated maize sheller does not require used in the fabrication of the machine.

In the light of this as technology advance forward, an introduction of this machine sheller made manifest and come into existence which is more stressless, easy to operate, low costing, and time reduction with high degree of production volume and efficiency.

In attainment to this design objective and aims, a proper considerations was given to the machinability factor which includes; installation, simplification, durability, choice material, machine, low costing and prolonged life span when operate with high utilization with minimal down fine.

Ergonomics in developing hand operated maize dehusker-sheller for farm women.

To facilitate operated by 1 person and requires feeding of cobs one by speedy shelling of maize in order to reduce post-harvest one. It is to 27 in number and measured vertically up from the barrels surface each.


This is an exit through which the cobs goes out of the barrel after shelling process. Constantly Risking Absurdity Summary.

This Page is automatically generated based on what Facebook users are interested in, and not affiliated with or endorsed by anyone associated [ This is made up of flat tiny metal welded round the inner barrel together it the spikes. The importance attached to this design is the facilitation and the production of voluminous corn shelling without much time and without encountering much breakage of the grains of the corn in shortest possible time.

Direct citing if referenced properly Thank you so much for your respect to the authors copyright. Determination of Driving Power. This is similar to a port but the difference is that it is bigger and not covered like the port.

It is therefore very rare to see any Nigerian who has not tested it in one way or the other. The diagram is shown below. Dimensionally, it is measured 30mm from the surface of the inner barrel wounded horizontally.

This is the outer funnel that collects the shelled corn from the conveyor to the outside. The fabricated sheller was then tested in the workshop with maize for a period of 22 seconds and its output noted. This is the rod attached to the surface of inner barrel which does the shelling process with the inner barrel and the spring vanes. A lot of farmers thus resort to manual shelling which is characterized by high costs of labour and low outputs. Bleak, haunting, and yet still somehow hopeful, Winter’s Bone is writer-director Debra Granik’s best work yet — and it boasts [