Study of the spring suspension mechanism of the coulter of the sod seeder

One of the promising technologies for restoring degraded forage lands that meets the requirements of organic farming is direct strip sowing of grass seeds into the sod with mechanical cultivation of strips of soil, the width of which ensures the successful development of seedlings without the use of herbicides. To improve the quality of seeding of sod seeders, a modernized design of the coulter group has been proposed with a shoe opener mounted on a parallelogram suspension mechanism in the form of torsion springs, characterized by their vertical placement on the seeder frame (RF patent No. 2772128). To study the influence of the design and technological parameters of the coulter group based on the spring suspension mechanism on the time the mechanical system returns to the condition of dynamic balance, a laboratory installation was developed. It includes a set of measuring and recording equipment based on the multifunctional sensor WitMotion WT901WIFI MPU9250. In the process of the research, a second-order Box-Benkin experiment plan for three factors was implemented, which made it possible to determine the dependence of the damping time of oscillations of the suspension mechanism of the coulter group on the following system parameters: depth of furrow formation, length of the leashes of the suspension mechanism and mass of the shoe opener. For the selected geometrical parameters of the experimental sample of the coulter group and the established equivalent stiffness of the torsion springs, equal to 240 N‧m/rad, the range of minimum values of the transition period time is within 0.212…0.218 s and corresponds to the furrow formation depth 41.3…50.0 mm, the length of the leashes 0.13 m, the weight of the coulter 1.7...1.8 kg. The trajectory of the shoe opener during the transition process in most experiments corresponds to a damped oscillatory motion, in some cases represents an extremely aperiodic motion.

1. Khukhta Kh., Minin V. B. Basic principles of organic agriculture. Saint-Petersburg: ASPIRST; Mikkeli, 2014. 40 p. URL: https://search.rsl.ru/ru/record/01007979139

2. Zotov A. A., Kosolapov V. M., Kobzin A. G., Trofimov I. A., Ulanov A. N., Shevtsov A. V., Shelmenkina Kh. Kh., Shchukin N. N. Hayfields and pastures on drained lands of the Non-Black Earth Region. Kokshetau: IP "Izotova K. U.", 2012. 1198 p. URL: https://elibrary.ru/item.asp?id=18823927&

3. Baker C. J., Saxton K. E., Ritchie W. R., Chamen W. C. T., Reicosky D. C., Ribeiro M. F. S., Justice S. E., Hobbs P. R. No-tillage seeding in conservation agriculture. 2nd ed. FAO and CAB International, 2007. 326 p. URL: http://www.fao.org/3/a-al298e.pdf

4. Welty L. E., Hensleigh P. F., Stewart V. R. Methods for Sod-Seeding of Small-Seeded Legumes and Grasses. Montana State University is an Equal Opportunity. 15 p. URL: https://animalrangeextension.montana.edu/forage/documents/methods%20for%20sod-seeding%20of%20small-seeded%20legumes%20and%20grasses.pdf

5. Sokolov A. V., Zamana S. P., Patlay V. V., Fedorovskiy T. G., Kindsfater V. Ya. Improving the technological process and means for direct grasses undersowing into grassland sod of natural fodder lands. Kormoproizvodstvo = Forage Production. 2012;(4):44-46. (In Russ.). URL: http://kormoproizvodstvo.ru/files/arhiv/4.12.pdf

6. Revenko V. Yu., Belousov M. M. Results of tests of the car for band podsev of herbs in dernina. Mezhdunarodnaya agroinzheneriya = International Agro-engineering. 2014;(4 (12)):53-61. (In Kazakhstan). URL: http://www.spcae.kz/uploads/images/2014%204.pdf

7. Polishchuk Yu. V., Laptev N. V., Komarov A. P. Combined implements for strip seeding in the technology of surface improvement of old-growth perennial grasses. Scientific support for animal husbandry in Siberia: materials of the V International. scientific-practical conf. Krasnoyarsk, 2021. pp. 52-56.

8. Kurbanov R. F., Sozontov A. V. An efficiency of a technology of multi-component strip sowing of perennial grasses in sod. Permskiy agrarnyy vestnik = Perm Agrarian Journal. 2017;(3 (19)):40-44. (In Russ.). URL: https://www.elibrary.ru/item.asp?id=30009673

9. Demshin S. L., Isupov A. Yu., Gaydidey S. V., Zyryanov D. A., Demshin K. S. Opener suspension mechanism: Patent RF, no. 2772128, 2022. URL: https://patents.google.com/patent/RU2772128C1/ru

10. Sysuev V. A., Demshin S. L., Cheremisinov D. A., Doronin M. S. A method for strip sowing grass seeds in turf and a seeder for its implementation: Patent RF, no. 2641073. 2018. URL: https://patents.google.com/patent/RU2641073C2/ru

11. Sysuev V. A., Kurbanov R. F., Demshin S. L., Saitov V. E., Doronin M. S. Parameters and operating modes of the coulter group of the sod seeder. IOP Conference Series: Earth and Environmental Science. 2021;723(2):022050. DOI: https://doi.org/10.1088/1755-1315/723/2/022050

12. Sysuev V. A., Demshin S. L., Cheremisinov D. A., Doronin M. S. Improvement quality of strip sowing of grasses’ seeds into a sod. Agrarnaya nauka Evro-Severo-Vostoka = Agricultural Science Euro-North-East. 2017;(5):63-67. (In Russ.). URL: https://www.agronauka-sv.ru/jour/article/view/163/163

13. Gaydidey S. V., Demshin S. L., Isupov A. Yu. Analysis of the dynamics of the coulter group of the sod seeder for strip sowing. Tavricheskiy vestnik agrarnoy nauki = Taurida herald of the agrarian sciences. 2022;(4 (32)):34-46. (In Russ.). URL: https://elibrary.ru/item.asp?id=49982561

14. Kormshchikov A. D. Equipment and technologies for sloping lands. Theory, technological calculation, development. Kirov: NIISKh Severo-Vostoka, 2002. 297 p. URL: https://search.rsl.ru/ru/record/01002460263