Optimization of seed flow evenness of fluted rolls used in seed drills by Taguchi method

Ozturk, Ilhan

doi:10.5897/sre11.1445

Cited by 9 publications

(4 citation statements)

References 4 publications

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“…For example, Guler et al [9] obtained the effective working length, diameter, and number scope of revolutions of a spiral sheath with a uniform arrangement of alfalfa seeds, but they did not study the influence of helix angle on uniformity. Ozturk et al [10] experimented on the effects of groove pattern length, revolving speed, and groove pattern shape on wheat flow uniformity by using the Taguchi optimization method and established the order of importance of these influence factors. however, they did not study other influence factors.…”

Section: State Of the Artmentioning

confidence: 99%

Fertilizer Feeding Mechanism and Experimental Study of a Spiral Grooved-Wheel Fertilizer Feeder

Zhang¹,

Zhang²,

Zheng³

2018

JESTR

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Outer grooved-wheel fertilizer feeders are extensively used for the application of solid fertilizers. As a key structure of the fertilizer feeding apparatus, this type of feeder's performance directly affects fertilizer feeding quality. Given that the teeth ridge of the traditional outer straight grooved-wheel fertilizer feeder is parallel to the axis, the teeth ridge and groove appear in a staggered manner during fertilizer feeding, and the fertilizer appears a pulsation phenomenon that affects the uniformity of fertilizer feeding. Therefore, for the fertilizer feeding pulsation problem caused by the structure of the outer straight grooved-wheel fertilizer feeder during fertilizer feeding, the spiral grooved-wheel was used in this study to replace the straight grooved-wheel. Design optimization was performed on the key structural parameters of the spiral grooved-wheel fertilizer feeder, and the uniform fertilizer feeding mechanism of the spiral grooved-wheel was studied using particular discrete element. Then, an experimental comparison and analysis of the fertilizer feeding performance of the two grooved-wheel types were implemented. Results showed that under similar conditions, the fertilizer feeding quantity of the spiral grooved-wheel was higher than that of the straight grooved-wheel when the helix angle was 60.83°. Through this mechanism, the spiral grooved-wheel was always a constant axial teeth ridge section participating in the fertilizer feeding process. The uniformity of fertilizer feeding is improved. The fertilizer feeding uniformity of the spiral grooved-wheel fertilizer feeder is much better than that of the straight grooved-wheel fertilizer feeder when the revolving speed is low. This study is important for mechanical-structural optimization of solid fertilizer feeders and improvement of fertilizer feeding precision.

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Section: State Of the Artmentioning

confidence: 99%

Fertilizer Feeding Mechanism and Experimental Study of a Spiral Grooved-Wheel Fertilizer Feeder

Zhang¹,

Zhang²,

Zheng³

2018

JESTR

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“…Therefore, increases in the roller speed favor a more uniform distribution of the seeds in the sowing row. Ozturk et al (2012), while evaluating the deposition flow of wheat seeds, found that the length of the roller exposition and the axis rotation speed are factors that most influenced the ( )…”

Section: Resultsmentioning

confidence: 99%

Use of graphite in the distribution of rice seeds with constant flow seed metering device

Savi

Zimmermann

Jasper

et al. 2023

Rev. bras. eng. agríc. ambient.

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The performance of the seed metering mechanism is evaluated according to the deposition uniformity during its operation and interference in the seed quality. The study aimed to assess the influence of graphite on the deposition homogeneity and the break index of rice seeds, distributed with a constant flow metering device with different exposition rates of the fluted roller. The rice seeds were treated with 4 g of graphite per kilogram and had a sowing density of 100 kg ha-1. The completely randomized design was arranged in a double factorial scheme (2 × 5). The first factor was the use of graphite, and the second was the fluted roller exposition rate (20; 40; 60; 80; and 100%). The sowing density and the coefficient of variation were collected by gravimetry using a load cell. The use of graphite as a solid lubricant decreased the mechanical damage. Nevertheless, it also reduced the homogeneity in seed distribution. The increase of the roller exposition rate negatively interfered with the coefficient of distribution variation and positively with the break index of rice seeds, not influencing the sowing density. In this way, the use of graphite as a solid lubricant for sowing small grains distributed from the fluted rotor becomes promising.

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“…where: V is the seeds volume discharged at one rotation, in m 3 /rot; nm -the flute cylinder rotation speed, in rpm; s -seeds specific mass, in kg/m 3…”

Section: Theoretical Researchmentioning

confidence: 99%

“…Several authors [3,4] performed researches regarding optimization of drills seed flow, concluding that the cylinder dimension, flutes number, flutes length and revolution had important effects on the uniformity of seeds distribution.…”

Section: Introductionmentioning

confidence: 99%

Theoretical and experimental research on sowing rate optimization of grassland drills

et al. 2019

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In this paper, sowing rate optimization of grassland drills consisted in finding an optimum combination between the seed flow of the seed metering device and the drill working speed, in order to achieve the sowing rates required by agro-technique for herbs seeds. It was developed a mathematical model that describes the seed flow variation depending on the working speed of the grassland drill and the active length of the groove cylinders. The experimental research was conducted using a grassland drill with eight metering devices and an automated installation, which simulates the working speed of the drill, collects and weighs seeds from each individual metering device. By using MathCad 14.0, it have been drawn the variation diagram of seed flow depending on active length of the groove and working speed. The comparative study of the variation diagrams based on experimental data and the variation diagrams obtained from mathematical modelling highlighted that the downward trend of the seed flow was observed in 66,67% of the results. Based on the mathematical model presented in this paper, it might be developed an algorithm enabling for fast obtain the optimal combination between the adjustment parameters, in order to apply a desired sowing rate.

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Optimization of seed flow evenness of fluted rolls used in seed drills by Taguchi method

Cited by 9 publications

References 4 publications

Fertilizer Feeding Mechanism and Experimental Study of a Spiral Grooved-Wheel Fertilizer Feeder

Fertilizer Feeding Mechanism and Experimental Study of a Spiral Grooved-Wheel Fertilizer Feeder

Use of graphite in the distribution of rice seeds with constant flow seed metering device

Theoretical and experimental research on sowing rate optimization of grassland drills

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