Design and Experimental Study of Potato-Soil Separation Device for Sticky Soils Condition

Wu, Bei; Huang, Tianci; Qiu, Xuanxuan; Zuo, Tianlin; Wang, Xiushan; Xie, Fangping

doi:10.3390/app112210959

Cited by 9 publications

(4 citation statements)

References 26 publications

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“…Before operation, the amount of hydraulic oil feed is changed by adjusting the hydraulic speed control valve (16) according to the field operation condition. During operation, the output shaft of the hydraulic motor (22) drives the sprocket to rotate and drives the wheel axle (23) and the front and rear two vibration axles (25) and ( 24) under the action of chain drive (27), conveying the separating device to operate.…”

Section: Overall Structural Design and Operating Principlementioning

confidence: 99%

“…The main requirements of the potato breeding harvester's conveying and separating device are to ensure the integrity of the potato plant, reduce the rate of injured potatoes, and have no mixing between plants. The rate of soil removal is 70-80% [23]. When the concave and convex fences are alternately arranged, potatoes are stuck between the two fences, easily causing potatoes and stolons to separate.…”

Section: Conveying and Separating Device Design 241 Conveying And Sep...mentioning

confidence: 99%

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Design and Experimental Study of Single Plant Harvester for Potato Breeding Experiments

Wang,

Yang,

Pan

et al. 2023

Agriculture

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In order to solve the current problems of time-consuming manual work and low harvesting efficiency during the harvesting of potato breeding trials and the inability of traditional harvesting machinery to meet the requirements of potato single plant harvesting, a single plant harvester for potato breeding with a combined excavation device and a conveying and separating device with alternating concave and straight units is designed. This paper analyzes the force, motion, and collision of potato plants in the digging transition stage and conveying and separating stage. The key factors affecting the rate of single plant integrity and the rate of injured potatoes are determined. A three-factor quadratic regression orthogonal rotating combination experiment is conducted with the rate of single plant integrity and the rate of injured potatoes as experiment indexes, forward speed, conveying speed to forward speed ratio, and the rotational speed of the rear-vibration device as influencing factors. Based on the experiment results, a mathematical regression model is established, and response surface analysis and parametric analysis are conducted to determine that when the forward speed is 0.65 m∙s−1, the ratio of conveying speed to forward speed is 0.98, and the speed of the post-vibration device is 11.52 rad∙s−1, the single plant integrity rate is 97.14% and the rate of injured potatoes is 0.67%. The machine can better meet the requirements of potato single plant harvesting and solve the problem of plant mixing. From the perspective of potato damage rate, potato breeding harvesters are also suitable for traditional potato harvesting.

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Section: Overall Structural Design and Operating Principlementioning

confidence: 99%

Section: Conveying and Separating Device Design 241 Conveying And Sep...mentioning

confidence: 99%

Design and Experimental Study of Single Plant Harvester for Potato Breeding Experiments

Wang,

Yang,

Pan

et al. 2023

Agriculture

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“…Regarding the lifting chain, it usually consists of two stages of cleaning. Chain's vibration and impact, with the lifting chain rod, are the main method of the lifting chain to separate the soil from the tuber [56][57][58][59][60]. When combined with the vibrator, the lifting chain will produce a wider vibration amplitude, which can enhance the cleaning effect [61].…”

Section: Structure Optimizationmentioning

confidence: 99%

Development and Evaluation of Mechanical Harvesting of Root Crops and Its Performance Optimization

Gong¹,

Yang²

2023

Preprint

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Root crops grow in the soil deeply and bond with soil closely, which results in that the process of the separation between soil and root becomes the most difficult during the harvesting processes. In order to harvest root crops efficiently, the mechanical harvesting has become the main developing trend. However, high power and high damage rate are still occurred when mechanical harvester gets in touch with the roots. In this paper, we review the research of the development and evaluation of the mechanical harvesting of root crops and its performance optimization on the past years. The process of soil separation mainly consists in the initial separation between root and the ground and further separation between root and adhered soil. In general, the soil-cutting operation in the initial separation and the sieving mechanism in the further separation require high draught and power. And the dramatic friction, impact, pressure and so on, which happen in the components and soil-roots, are the key reasons to lead to root damage. The optimization of harvesting methods and parameters, including the digging shovel shape, working conditions, vibration, and screening way, is more significant in improving the harvesting performance. But there are still some limitations in the research and application of the mechanical harvester for root crops. Future research is suggested to focus on the development of the soil break-up when the digging shovel cutting soil, the insight into the interaction between soil and roots by different external compression loads, and the long-term studies to verify the high-efficiency and low-damage performances of mechanical harvester in practical application.

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“…Li Wang et al [4] studied the effect of the design and operating parameters of an inclined elevator on the damage of potato tubers using a test bench. Wu Huang et al [5] optimized the parameters of a potato digger for wet soils. However, most of the research on devices for separating tubers from the soil when harvesting potatoes was carried out in bench tests.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Analysis of Separation of Potato Tubers From Soil in a Belt-Rod Elevator

2022

IJeR

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In this study, the mechanism of operation of the belt-rod elevator of a small-sized potato digger and the efficiency of separating tubers from the soil were studied. The main factors influencing the characteristics of the separation of tubers from the soil were obtained on the basis of a theoretical analysis of the tilt angle of the elevator, the linear speed of the belt-rod elevator and the speed of movement of the digger. As a result, the optimal parameters were obtained: equal elevator tilt angle of 18°, linear elevator speed of 1.4 m/s and forward speed of the digger of 0.80 m/s.

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Design and Experimental Study of Potato-Soil Separation Device for Sticky Soils Condition

Cited by 9 publications

References 26 publications

Design and Experimental Study of Single Plant Harvester for Potato Breeding Experiments

Design and Experimental Study of Single Plant Harvester for Potato Breeding Experiments

Development and Evaluation of Mechanical Harvesting of Root Crops and Its Performance Optimization

Theoretical Analysis of Separation of Potato Tubers From Soil in a Belt-Rod Elevator

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