DESIGN OF FARM MACHINERY ATTACHABLE TO A POWER UNIT APPROPRIATE FOR MEDIUM AND SMALL-SCALE AGRICULTURE
FAYEZ MOHAMMED AL-NAJJAR;
Abstract
This investigation is about design of machines attached to a power unit to perform operations in small and medium scale agriculture. Machinery include:
l)Planter: suitable for large grains. The designed planter could be operated by power available on farm, such as a power tiller, a power unit, or pushed-manually.
2)Trailer: drawn by a power unit for field transportation.
Another principal aim of this work is studying some design factors that enable developing simple machines appropriate for Egypt, and developing countries. Materials available on the local market to are used to enable national workshops to manufacture and maintain the equipment.
Two groups of experiments were carried out to study the effect of design factors on the planter performance:
1) Laboratory experiments:
The main results in this study can be summarized in the following:
1: Dimensions and characteristics of seeds: the largest friction angle was for peas(28-30 Deg.) because of its surface roughness and wrinkles.
2: Seeds discharge per hills: slightly decreased as the forward speed increased, this is believed to be due to insufficient time available for seeds to fill in the flute.
l)Planter: suitable for large grains. The designed planter could be operated by power available on farm, such as a power tiller, a power unit, or pushed-manually.
2)Trailer: drawn by a power unit for field transportation.
Another principal aim of this work is studying some design factors that enable developing simple machines appropriate for Egypt, and developing countries. Materials available on the local market to are used to enable national workshops to manufacture and maintain the equipment.
Two groups of experiments were carried out to study the effect of design factors on the planter performance:
1) Laboratory experiments:
The main results in this study can be summarized in the following:
1: Dimensions and characteristics of seeds: the largest friction angle was for peas(28-30 Deg.) because of its surface roughness and wrinkles.
2: Seeds discharge per hills: slightly decreased as the forward speed increased, this is believed to be due to insufficient time available for seeds to fill in the flute.
Other data
| Title | DESIGN OF FARM MACHINERY ATTACHABLE TO A POWER UNIT APPROPRIATE FOR MEDIUM AND SMALL-SCALE AGRICULTURE | Other Titles | تصميم آلات حقلية بوحدة قدرة لتناسب الزراعات المتوسطة والصغيرة | Authors | FAYEZ MOHAMMED AL-NAJJAR | Issue Date | 1996 |
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