Development of pedal operated Syzygium cumini tree shaker with catching unit
2015
Pathak, Vishnudas Sachin (Agricultural University Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. (India). College of Agricultural Engineering and Technology) | Vijay, Chavan Manishkumar (Agricultural University Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. (India). College of Agricultural Engineering and Technology) | Uttamrao, Shahare Prashant (Agricultural University Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Dist. (India). College of Agricultural Engineering and Technology)
The objective of this research work was to develop a pedal operated tree shaker for jamun (Syzygium cumini) fruit harvesting. The prototype machine was constructed and tested on jamun fruit. The tree shaker was powered by manually foot pedal. The output power of the foot pedal was transmitted through a steel wire rope, where it was converted to a reciprocating motion. The eccentricity of the mechanism was constant to provide stroke lengths of 160 mm. The slider motion was transmitted to the shaker clamp to generate the inertia forces to shaking of the branch. The study included frequency and amplitude to obtain maximum fruit removal percentage, harvesting rate of shaker and physical properties of jamun fruit. Harvesting rate was calculated by weighing both the harvested and unharvested jamun. During the test, the limb of tree was attached to a clamp, which was reciprocated at 160 mm amplitude through steel wire rope (4 mm in diameter) and pedal assembly. The frequency of reciprocation was varied from 40, 50, 60, 70, 80 and 90 cpm respectively. The results were recorded to the maximum fruit removal percentage. Maximum fruit removal percentage was observed to 80-90% by operating the tree shaker at amplitude of 160 mm and a frequency of 90 cpm.
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