Mechanization in agriculture & Conserving of the resources
Vol. 64 (2018), Issue 6, pg(s) 195-199

Optimization of tribological parameters in the design of rotary tiller blades

  • 1 Polytechnic University of Tirana, Albania
  • 2 Agricultural Machinery Station of Fier, Albania

Abstract

The argument of this paper is rotary the tiller blade, which undergoes severe surface wear during tillage of agricultural land. The study was conducted by comparing on H-shaped blades, of two different manufacturers, used in rotary tillers, mainly in the fields of Myzeqe, Lushnje. Our tests included the measurement of the abrasive wearing as weight loss of material of each blade to the end of lifecycle – recorded after every 10 hectares cultivated surface in field conditions. We experimented in laboratory the blade wearing through ‘pin on disk’ test. Another tribological parameter measured in the laboratory was the hardness in Vickers on cutting edge of the blade, before and after wearing. To make the targeted optimization, we initially computed a stressed situation on the blade cutting edge, and then processed through the SOLIDWORKS software, which generates a map of more stressed areas that lead to significant wear. By simulating with geometric parameters of tiller blades, we have sought the situation of stresses with less impact on wearing of tiller blades. This paper is also includes relevant recommendations.

Keywords

References

  1. A. Hasanaj, “The Study of experimental and laboratory results on wearing of rotary tiller blades” - Scientific work – Diploma on Material Engineering Master Level, Mechanical Engineering Faculty, PUT, 2016, pp. 5-78;
  2. S. K. Mandal, B. Bhattacharya, S. Mukherjee, “Optimization of Design Parameters for Rotary tiller‟s Blade”, Proceedings of the 1st International and 16th National Conference on Machines and Mechanisms”, Roorkee, India, 2013, pp. 533-539;
  3. MASCIO H205 – „Maschio Gaspardo‟ S. p. A., Manual
  4. M. Gavali, S. Kurkarni, “Development of Rotary weeder blades by Finite Element Method”, International Journal of Scientific Research Engineering & Technology, Vol. 3, Issue 6, 2014, pp. 941- 945;
  5. J. S. Mahal, G. S. Manes, A. Prakash, M. Singh, A. Dixit, “Study in Blade Characteristic of Commercially Available Rotavators in Punjab”, Agricultural Engineering Today, Vol. 36 (3), 2012, pp. 8- 11;
  6. A. S. Kang, G. S. Cheema, Sh. Singla, “Wear behavior of hardfacing on rotary tiller blades”, The 12th Global Congress on Manufacturing and Management, GCMM 2014, Procedia Engineering 97 (2014), pp. 1442-1451;
  7. Michael Ashby, Hugh Shercliff and David Cebon, “Materials Engineering Science Processing and Design”, Chapter 11, Butterworth Heinemann, GB 2007, pp. 227-243;
  8. Standard Test method, G-99, Wear Testing with Pin-on-disc apparatus;
  9. Gwidon W. Stachowiak, Andrew W. Batchelor: “Engineering Tribology”, Elsevier Butterworth Heinemann, ISBN 0 444 89235 4, Australia 2002, pp. 574-580;
  10. „Wear Testing Measurement‟ Chapter 6, pp. 84-93;
  11. Y. Shurdha, “Agricultural Mechanic” – Textbook, 1996, pp.235- 268;
  12. S. K. Mandal, B. Bhattacharya, S. Mukherjee, “Design of Rotary Tiller‟s Blade Using Specific Work Method (SWM)” Journal of Applied Mechanical Engineering, Vol. 4, Issue 3, 2015, pp. 01-06;
  13. SolidWorks 2012, software;

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