Seed drill instrumentation for spatial coulter depth measurements

Nielsen, Søren Kirkegaard; Munkholm, Lars J.; Lamandé, Mathieu; Nørremark, Michael; Skou-Nielsen, Nick; Edwards, Gareth; Green, Ole

doi:10.1016/j.compag.2017.07.014

Cited by 21 publications

(8 citation statements)

References 17 publications

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“…Тому, на сьогоднішній день, все більше уваги приділяється забезпеченню максимальній ефективності виконання технологічного процесу за рахунок удосконалення конструкцій робочих органів посівних машин [2, 3,4]. На основі досліджень [5,6] було встановлено, що розміщення насіння по глибині і довжині рядка напряму впливає на швидкість його проростання і, як наслідок, на врожайність культури. Висівні апарати, які використовуються на сучасних просапних сівалках, забезпечують висів насіння із задовільною точністю [5,7].…”

Section: вступunclassified

Study of design parameters of coulter elements for sowing row crops

Artemenko

2023

Scientific and Technical Research in the Field of Mechanical Engineering and Transport

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Третій розділ присвячено питанням розвитку та удосконалення конструкцій робочих органів сільськогосподарських машин. Теоретично обґрунтовані основні технологічні параметри удосконаленої конструкції наральника сошника просапної сівалки: кут входження в ґрунт верхньої і нижньої частини наральника та п’яти. Розроблені удосконалені щоки сошника та теоретично встановлено закон руху часток ґрунту після сходу з їх поверхні. Нова конструкція сошника може забезпечити якісне укладання і загортання насіння просапних культур згідно агровимог.

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Section: вступunclassified

Study of design parameters of coulter elements for sowing row crops

Artemenko

2023

Scientific and Technical Research in the Field of Mechanical Engineering and Transport

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“…In addition, downforce is one of the key indicators affecting seeding quality, which directly affects the qualified rate of seeding depth and spacing. In the range of 600~900 N, the variation coefficient of seeding depth decreases with the increase in downforce [10,11]. Stable downforce is an essential guarantee for achieving stable seeding depth, preventing competition for sunlight, water and nutrients, and obtaining a high emergence rate and final yield [12,13].…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Pneumatic Downforce Regulating Device for No-Till Corn Planter

Cao

Wang

et al. 2022

Agriculture

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To avoid the issues of undesired soil compaction and seeding depth variation caused by the downforce fluctuation of the corn no-till planter, the influence of the structural parameters of the air spring on the downforce was researched in this paper, by establishing the gas–solid coupling simulation model of the air spring. The downforce test bench was built to verify the simulation model; the test showed that the vertical output force error of the simulation model was 4.79%, the pitch diameter error was 0.76%, and the pressure error was 5.07%. The cord angle, piston angle and piston diameter were used as influencing factors to carry out single-factor experiments. The influences of structural parameters on downforce were analyzed from four aspects: the vertical output force, the vertical stiffness, the pressure difference and the deformation rate. The results showed that the cord angle reduced the effective area and its change rate during deformation by limiting the radial deformation of the bellow. When the cord angles were 30°, 45° and 60°, the deformation rates were 65.6%, 20.3% and 4.8%, respectively. The cord angle had a positive effect on the vertical output force when the cord angle was in the range of 30~56°, and it had a negative impact in the range of 56~60°. As the cord angle increased, the vertical stiffness decreased. As the piston angle increased, the effective area of the air spring decreased, and the change in internal pressure decreased, reducing its vertical output force and stiffness. The piston diameter had little effect on the internal pressure and deformation rate. It increased the vertical output force and stiffness by increasing the effective area. The structural parameters of the air spring had a significant impact on the stability of the downforce; the structure of the air spring should be optimized according to the downforce demand of the corn no-till planter.

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“…For this reason, nowadays, the attention is being increasingly focused on securing of maximum accomplish efficiency of the technological process by improving the designs of working tools of seeding machines (Brunotte J. et al, 2005;Vasylkovska K. et al, 2016;Nanka A. et al, 2019). Through the prism of researches (Volokha M.P., 2015, Nielsen S. et al, 2017, it has been establised that the placement of seeds relatively to the depth and length of the row directly influences the speed of its germination and, as a consequence, the crop yield. Seeding aggregates used on modern precision seed drills ensure seeding of satisfactory accuracy (Volokha M.P., 2015;Mostypan M. et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Grounding of Design and Technology Parameters of Combined Coulter Furrow Opener of Precision Seed Drill

Artemenko¹,

Mykola²,

Volodymyr³

et al. 2021

Alinteri

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A formation of a seedbed is an important step during seed sowing process. A quality of seedbed formation influences on seeds distribution along both a row and a depth and is triggering the opportunity to obtain early and even sprouts. The design of the furrow opener is the main element that has a direct impact on the qualitative formation of seedbed and technological parameters of coulter operation. During the research, there has been analyzed the modern construction of precision seed drills coulters and specified advantages and disadvantages of their operation. It has been established that the most advanced are coulters having a working section with a combined angle (sharp and obtuse) of entry into the soil. The attained results afforded to develop an improved design of the coulter furrow opener of the precision seed drill. There was brought forward a combined wedge furrow opener, the upper part of which has a working section with a sharp angle of entry into the soil, lower - and compactor, located in the rear part of the furrow opener, which forms seedbed has a working surface with an obtuse angle of entry into the soil. There were obtained analytical dependences targeted to determine the main structural and technological parameters of the operating elements of a combined coulter furrow opener which is used to seed cultivated crops: the angles of entry into the soil of the upper and lower part of the furrow opener, compactor in the rolling plane and the angle of tip of the furrow opener in the horizontal plane.

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Seed drill instrumentation for spatial coulter depth measurements

Cited by 21 publications

References 17 publications

Study of design parameters of coulter elements for sowing row crops

Study of design parameters of coulter elements for sowing row crops

Design and Analysis of Pneumatic Downforce Regulating Device for No-Till Corn Planter

Grounding of Design and Technology Parameters of Combined Coulter Furrow Opener of Precision Seed Drill

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