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Development of a potato digger [electronic resource].

By:

Younis, Samy M

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Language: English Summary language: bara Description: p.292-313Other title:

"تطوير الة لتقليع البطاطس".‪ [Added title page title]

Uniform titles:

Misr journal of agricultural engineering, 2006 v.23 (2) [electronic resource].

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In: Misr Journal of Agricultural Engineering 2006.v.23(2)Summary: A potato digger was developed by adding a vibrating device to operate the digging blades and reduce the required drawbar pull and potato tuber bruising. The vibrating device includes beam holder, follower, cam and transmission system. The overall operating parameter (T) was also analyzed. The natural frequencies of the digging blade, potato tuber and disturbed soil were determined. The developed digger was tested at four levels of forward speed (0.9, 1.5, 1.9 and 3.2 km/h), four levels of vibrating amplitude (3, 5, 6 and 10 mm) and five levels of vibrating frequency (400, 600, 800, 1000 and 1200 rpm). The results showed that the drawbar pull of the developed digger was decreased by 25.17, 25.91, 28.43 and 30.47% at forward speeds of 0.9, 1.5, 1.9 and 3.2 km/h, respectively comparing with the original digger records at amplitude of 10 mm frequency of 1200 rpm. On the other hand, the developed digger succeed to operate with lower power tractors thus the harvesting cost was reduced by 28.5 %.

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A potato digger was developed by adding a vibrating device to operate the digging blades and reduce the required drawbar pull and potato tuber bruising. The vibrating device includes beam holder, follower, cam and transmission system. The overall operating parameter (T) was also analyzed. The natural frequencies of the digging blade, potato tuber and disturbed soil were determined. The developed digger was tested at four levels of forward speed (0.9, 1.5, 1.9 and 3.2 km/h), four levels of vibrating amplitude (3, 5, 6 and 10 mm) and five levels of vibrating frequency (400, 600, 800, 1000 and 1200 rpm). The results showed that the drawbar pull of the developed digger was decreased by 25.17, 25.91, 28.43 and 30.47% at forward speeds of 0.9, 1.5, 1.9 and 3.2 km/h, respectively comparing with the original digger records at amplitude of 10 mm frequency of 1200 rpm. On the other hand, the developed digger succeed to operate with lower power tractors thus the harvesting cost was reduced by 28.5 %.

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