Influence of Geometric and Setup Parameters of the Arrangement of Working Tools on Agrotechnical and Power Characteristics

The paper contains the analysis results of the influence of geometric and setup parameters of the plow working tools on agrotechnical indicators and traction resistance of a plow.

(Research purpose) To determine the agrotechnical indicators of tillage quality depending on the type of a plow moldboard and determine the optimal moldboard for loamy soils.

(Materials and methods) Agrotechnical indicators included crumbling, soil layer turnover, and the incorporation (embedding) degree of plant residues. More intensive lumpiness is observed as the content of clay particles increases. The angle of plow body setup relative to the furrow walls is changed using the middle bolts securing the plow body rack of the frame and installing additional washers on one of the two remaining bolted joints. For experiments on the influence of the inclination angle of the plow-bottom surface relative to the furrow wall, the plow bodies were located at angles of 30 to 55 degrees.

(Results and discussion) It has been established that at angles of 30-35 degrees, the diameter of clods increases to values exceeding the permissible norm by 10-20 percent. An increase in the angle of more than 45 degrees reduced the diameter of clods to 10-30 millimeters. With an increase in angle to 50-55 degrees, shearing chips changed into shifting chips. The authors determined traction resistance of plows with various types of moldboards and identified the results of analytical calculations and experimental data in field trials using a dynamometer. Traction resistance of the plow decreases as cylinder moldboards are substituted with screw (auger-type) ones.

(Conclusions) It has been determined that as the angle of plow body setup relative to the furrow walls increases, the size of soil fragments decrease, and shearing chips change into shifting chips. It has been proved that general-purpose and half-screw moldboards demonstrate the best agrotechnical indicators on loamy soils

1. Kashtanov A.N., Sizov O.A. Problemy vosstanovleniya ugodiy, vybyvshikh iz sel'skokhozyaystvennogo ispol'zovaniya [Problems of restoring out-of-use farmlands]. Ekonomika sel'­skogo khozyaystva Rossii. 2008. N11. 174-176 (In Russian).

2. Lobachevskiy Ya.P. Prochnostnye i deformatsionnye svoystva svyazannykh zadernennykh pochv [Strength and deformation properties of coherent sod-covered soils]. Sel'skokhozyaystvennye mashiny i tekhnologii. 2011. N3. 18-21 (In Russian).

3. Liskin I.V., Mironov D.A. Vliyanie pochvennykh usloviy na iznos rabochikh organov [Influence of soil conditions on the wear of working tools]. Sel'skokhozyaystvennye mashiny i tekhnologii. 2013. 5. 29-31 (In Russian).

4. Karmakar S., Kushwaha R. CFD Simulation of Soil Forces on a Flat Tillage Tool. ASAE Meeting Presentation. 2005. N2. 56-61 (In English).

5. Liskin I.V., Panov A.I., Gorbachev I.V. Rezul'taty ispytaniy lemekhov s nakladnym dolotom [Test results of chisel shares]. Sel'skiy mekhanizator. 2017. N5. 8-9 (In Russian).

6. Mironov D.A., Liskin I.V., Sidorov S.A. Vliyanie geometricheskikh parametrov dolota na tyagovye kharakteristiki i resurs lemekhov otechestvennykh plugov [Influence of the geometrical parameters of the chisel on the traction characteristics and the resource share of domestic plows]. Sel'skokhozyaystvennye mashiny i tekhnologii. 2015. N6. 25-29 (In Russian).

7. Liskin I.V., Mironov D.A., Sidorov S.A. Ravnovesie pluga v prodol'no-vertikal'noy ploskosti [Equilibrium of the plow in the longitudinal vertical plane]. Sel'skokhozyaystvennye mashiny i tekhnologii. 2014. N6. 41-46 (In Russian).

8. Sidorov S.A., Mironov D.A. Obosnovanie povysheniya ekspluatatsionnykh kharakteristik lemekhov plugov [Grounds for improving the operational characteristics of plowshares]. Sel'skokhozyaystvennye mashiny i tekhnologii. 2013. N6. 14-17 (In Russian).

9. Izmaylov A.Yu., Liskin I.V., Lobachevsky Ya.P., Sido­rov S.A., Khoroshenkow V.K., Mironova A.V., Luznova Ye.S. Simulation of soil-cutting blade wear in a artificial abrasive environment based on the similarity theory. Russian Agricultural Sciences. 2017. Vol. 43. N1. 71-74 (In English).

10. Raper R.L., Reeves D.W., Burt E.C. Using In-Row Subsoiling to Minimize Soil Compaction Caused by Traffic. The Journal of Cotton Science. 1998. N2. 130-135 (In English).

11. Lobachevskiy Ya.P., Kolchina L.M. Sovremennoe sostoyanie i tendentsii razvitiya pochvoobrabatyvayushchikh mashin [Current state and development trends of tillage machines]. Moscow: Rosinformagrotekh. 2005. 116 (In Russian).

12. Rudenko N.E., Padal'tsin K.D. Issledovanie protsessa vzaimodeystviya kombinirovannogo rabochego organa s pochvoy [Study of the interaction of a combined working tool with the soil]. Sel'skokhozyaystvennye mashiny i tekhnologii. 2014. N2. 26-29 (In Russian).

13. Lobachevskiy Ya.P., Panov A.I., Panov I.M. Perspektivnye napravleniya sovershenstvovaniya konstruktsiy lemeshno-otval'nykh plugov [Promising directions for improving the design of moldboard plows]. Traktory i sel'khozmashiny. 2000. N5. 1218 (In Russian).

14. Goryachkin V.P. Sobranie sochineniy [Collected works]. Vol. 2. Moscow: Kolos. 1965. 459 (In Russian).

15. Sineokov G.N., Panov I.M. Teoriya i raschet pochvoobrabatyvayushchikh mashin [Theory and calculation of tillage machines]. Moscow: Mashinostroenie. 1977. 328 (In Russian).

16. Burchenko P.N. Mekhaniko-tekhnologicheskie osnovy pochvoobrabatyvayushchikh mashin novogo pokoleniya [Mechanical and technological foundations of a new generation of tillage machines]. Moscow: Rossiyskaya akademiya sel'sko­khozyaystvennykh nauk. 2002. 212 (In Russian).

17. Liskin I.V., Lobachevskiy Ya.P., Mironov D.A., Sidorov S.A., Panov A.I. Rezul'taty laboratornykh issledovaniy pochvorezhushchikh rabochikh organov [Laboratory study results of soil-cutting tools]. Sel'skokhozyaystvennye mashiny i tekhnologii. 2018. Vol. 12. N4. 41-47 (In Russian).

18. Mazitov N.K., Shogenov Yu.Kh., Tsench Yu.S. Sel`skokhozyaystvennaya tekhnika: resheniya i perspektivy [Agricultural machinery: solutions and prospects]. Vestnik VIESH. 2018. N3(32). 94-100 (In Russian).

19. Lobachevskiy Ya.P., Starovoytov S.I., Chemisov N.N. Ener­geticheskaya i tekhnologicheskaya otsenka pochvoobrabatyva­yushchego rabochego organa [Energy and technological assessment of the tillage working body]. Sel`skokhozyaystvennye ma­shiny i tekhnologii. 2015. N5. 10-13 (In Russian).