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논문 기본 정보
- 자료유형
- 학술저널
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- 저널정보
- 충남대학교 농업과학연구소 Korean Journal of Agricultural Science Korean Journal of Agricultural Science Vol.51 No.4
- 발행연도
- 2024.12
- 수록면
- 497 - 511 (15page)
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초록· 키워드
Appropriate pepper seedling picking mechanism significantly impacts the overall transplanting efficiency and mechanization rate. Theoretical analysis of the picking device helps to generate the necessary kinematic data for predicting the seedling transplanting performance in the actual field. This study aimed at determining feasible link bar combination, velocity, and acceleration, as well as the input driving torque required to convey and release the pepper seedlings smoothly. 3D model assembly of the five-bar sliding-type picking mechanism was theoretically modelled, and the motion was simulated using a commercial software. The model of the sliding pin and bar mechanism consisted of a driving link, a driven link, a connecting link, a slider, a fixed slot, and an end-effector. For the kinematic simulation, the dimensions of the driving link, driven link, connecting link, and end-effector were variable, while the dimensions of the fixed slot and slider remained constant. To select the proper link bar combination with the corresponding peak velocity and acceleration that maintains an appropriate picking trajectory, ten simulation trials of different link bar lengths were conducted. To calculate the driving torque needed to transplant one pepper seedling, six driving link speed trials were considered. The best link bar combination found was 54 mm, 106 mm, 116 mm, 114 mm, and 140 mm for the driving link, connecting link, driven link, end-effector, and fixed link, respectively. At a 30 rpm of driving link speed, the end-effector exhibited optimal velocities of 0.274 m·s<sup>-1</sup> and 0.199 m·s<sup>-1</sup>, and accelerations of 2.94 m·s<sup>-2</sup> and 8.249 m·s<sup>-2</sup> along the x- and y-axes, respectively. The driving torque required to complete one revolution cycle of pepper seedling picking was 2,700 Nm at a rate of 30 seedlings per minute. The results of this study would offer theoretical support for enhancing the design of the sliding pin and bar mechanism used pepper seedling transplanters.
#agricultural machinery
#kinematic analysis
#pepper seedling
#pepper transplanter
#sliding picking mechanism
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목차
- Abstract
- Introduction
- Materials and Methods
- Results and Discussion
- Conclusion
- References
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