Design and experiment of the double-seed hole seeding precision seed metering device for peanuts

Zhao, Xiaoshun; Ran, Wenjing; Hao, Jianjun; Bai, Wenjie; Yang, Xianfeng

doi:10.25165/j.ijabe.20221503.6608

Cited by 6 publications

(5 citation statements)

References 6 publications

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“…After the seeds fall into the seed tube, take a single seed as the research object to conduct mechanical analysis [22][23][24] , establish a mathematical model, and clarify the control conditions of "zero speed" seed falling (as shown in Figure 2). The seed is subjected to the supporting force F N in the seed tube, the seed gravity G, the sliding friction force F f between the seed and the tube wall and the centripetal force Fʹ, from the equilibrium condition of seed C at point B we know that:…”

Section: Analysis Of the Seed Guide Processmentioning

confidence: 99%

Seed guide path planning and parameter optimization for air-suction carrot seed-metering device

Wang,

Zhang,

Jiang

2023

International Journal of Agricultural and Biological Engineering

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To meet the requirement of "zero speed" for precision sowing, the instantaneous speed of seed falling into the seed bed should be equal to the opposite direction of the forward speed of the machine. Through analyzing the principle of seed guiding process, the main influencing factors affecting the contour curve of the seed tube were determined to plan the seed guiding path and realize zero speed seed delivery. With the help of EDEM simulation software, taking the inclination angle of seed tube end, operating speed of the metering disc, and machine's forward speed as the experimental factors, a single-factor simulation test was conducted with the pass rate, replay rate, and missing seeding rate as experimental indexes. The results of the simulation test showed that the range of inclination angle of the seed tube end was 23°-40°, the range of machine forward speed was 5-9 km/h, and the range of operating speed of the metering disc was 15-40 r/min. The quadratic orthogonal rotation combination test method was carried out using the bench test, and a mathematical regression model was established between experimental factors and experimental indexes to determine the priority order of factors, and the best combination of factors. The test results showed that the pass rate was 93.25%, the replay rate was 2.97% and the missing seeding rate was 3.78% under the condition with the inclination angle of seed tube end of 32.28°, the forward speed of the machine of 6.89 km/h and the operating speed of the metering disc of 28.67 r/min, which can meet the requirements of relevant national standards.

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Section: Analysis Of the Seed Guide Processmentioning

confidence: 99%

Seed guide path planning and parameter optimization for air-suction carrot seed-metering device

Wang,

Zhang,

Jiang

2023

International Journal of Agricultural and Biological Engineering

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“…The forward speed of the machine was adjusted to 0.36 km/h, and the disc rotating speed was 0.1 r/s. The test was carried out to obtain the relationship curve between the number of disc seeding grooves and the seeding uniformity [21] , as shown in Figure 13. SPSS software was adopted to perform regression statistical analysis on the test results; the mathematical model of the number of disc seeding grooves and the seeding uniformity was obtained as follows:…”

Section: The Number Of Disc Seeding Groovesmentioning

confidence: 99%

Design and experimental research on disc-type seeding device for single-bud sugarcane seeds

Liu¹,

Niu²,

Li³

et al. 2023

International Journal of Agricultural and Biological Engineering

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Mechanized sugarcane seeding is one of the effective technical measures for improving seeding uniformity and operation efficiency. However, the imperfection of supporting equipment limits the promotion and application of this technology. As there are some problems in domestic sugarcane planting machines currently, such as large auxiliary labor, high labor intensity, low seeding uniformity, and large amount of seeds, a disc-type single-bud sugarcane seed metering device was innovatively designed on the basis of the analysis of physical properties of single-bud sugarcane seeds and the combination with agronomic requirements for field planting in this paper. Solidworks was used to simulate and analyze the mechanism, check the theoretical parameters, and process the test prototype. Through single-factor experiments, the effective factors affecting seeding uniformity were determined. A multi-factor orthogonal rotation test was designed, data were collected and then SPSS was used to get the optimal parameters for the seeding uniformity: the advancement speed of machine is 0.22 m/s, the number of disc seeding grooves is 10, the rotating disc speed is 0.18 r/s, and the seeding uniformity is 86.2%; the seeding uniformity was verified by field trial, and the results showed that the average seeding uniformity of the field verification was 83%, with the error 3.2% relative to the optimization result. The relative error is within 10%, indicating that the optimization result is reliable and meets the requirements of seeding uniformity, thus providing theoretical basis for the research and development of the disc-type single-bud seeding device.

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“…Precision sowing operations require uniform and stable plant spacing, the design structure and driving method of the seeder are crucial, which is an important component to ensure uniform plant distance [4] . The continuous optimization of the mechanical structure of the current peanut seed metering device [5,6] can make sure that the seeder can complete the operation stably at a certain working speed [7][8][9] . However, the traditional seed metering device adopts ground-wheel-driven chain transmission for seeding, by which the high-speed seeding effect is unsatisfied, the ground wheel slippage and the chain jam are prone to occur, which seriously declines the performance of peanut mechanized sowing operations [10] .…”

Section: Introduction mentioning

confidence: 99%

Design of motor-driven precision seed-metering device with improved fuzzy PID controller for small peanut planters

Shang

et al. 2023

International Journal of Agricultural and Biological Engineering

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Traditional passive ground wheel drive of peanut planters has displayed poor high-speed seeding performance and the slippage caused in case of sticky and wet soil. Given this, an integrated electric-driven precision seed metering device and controller were designed, which features the application of improved fuzzy PID algorithm. Based on a small peanut planter with one ridge width and duplicate rows, the servo motor drive is used to replace the traditional passive ground wheel. In addition, the satellite speed measurement is employed to complete the electric driving and controlling modification of the seed meter and precise seeding control. A working process mathematical model for the peanut metering device was established to conduct motor speed and field tests which aim at comparing performances between the conventional and the improved fuzzy PID controls. The motor speed trial shows that the average error of the actual speed of the improved fuzzy PID motor was ±1 rad/min, and the coefficient of variation was less than 1%. Against the conventional one, it can better suppress overshoot and improve the response speed. The stable output speed can still be obtained even in case of step changes. Field tests show that when working at medium and low speeds, the qualified rate of plant spacing was greater than 98%, and the rate of missed sowing is <2%; while working at high speed, the qualified rate was greater than 94%, and the rate of missed sowing was less than 4%. The average plant spacing qualification rate of the seed device increased by 6.72%; compared with other electric-driven peanut seed meters, the plant spacing qualification rate increased by 4% during high-speed sowing. In summary, this study has provided an effective technical reference for high-speed precision planting of peanuts.

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Design and experiment of the double-seed hole seeding precision seed metering device for peanuts

Cited by 6 publications

References 6 publications

Seed guide path planning and parameter optimization for air-suction carrot seed-metering device

Seed guide path planning and parameter optimization for air-suction carrot seed-metering device

Design and experimental research on disc-type seeding device for single-bud sugarcane seeds

Design of motor-driven precision seed-metering device with improved fuzzy PID controller for small peanut planters

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