DEVELOPMENT OF A RUBBING THRESHER FOR SOME SEED CROPS | ||
| Misr Journal of Agricultural Engineering | ||
| Article 7, Volume 31, Issue 1, January 2014, Pages 133-154 PDF (944.54 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/mjae.2014.99955 | ||
| Authors | ||
| M.S. El-Shal1; A.S. El-Ashry2; A.M. El-Shal3; W.B. Fakhrany4 | ||
| 11Prof. Emeritus of Agric. Eng., Fac. of Agric., Zagazig University, Egypt. | ||
| 2Head of Research, Agric. Eng. Inst., Agric. Res. Center, Egypt. | ||
| 3Assistant Prof. of Agric. Eng., Fac. of Agric., Zagazig University, Egypt. | ||
| 4Assistant Researcher in Agric. Eng. Inst., Agric. Res. Center, Egypt. | ||
| Abstract | ||
| A rubbing thresher was developed and evaluated on threshing some seed crops as flax and sunflower. The performance of the developed machine was tested in two independent experiments according to the kind of crop by studying some engineering factors that affecting threshing operation such as threshing drum speed, threshing belt speed, and concave clearance. The flax experiment was performed by testing the drum speed at 4.2, 5.5, 6.4, and 7.3 m/s, threshing belt speed at 0.42, 0.67, 0.96, and 1.25 m/s, and concave clearance at 1.5, 2.5, and 4.0 cm. In addition, the sunflower experiment was performed at the same levels of drum speed and belt speed addition to other three levels of concave clearance of 2.5, 4.0, and 5.5 cm. The results showed that, the drum speed of 7.3 m/s, belt speed of 0.42 m/s, and concave clearance of 1.5 cm were the optimum conditions for threshing flax crop by the developed thresher. In addition, the optimum conditions for threshing sunflower by the rubbing thresher were 7.3 m/s, 0.42 m/s, and 2.5 cm of drum speed, belt speed, and concave clearance respectively. | ||
| Keywords | ||
| Rubbing thresher; flax threshing; sunflower threshing | ||
| References | ||
|
Bainer, R.; R.A. Kepner and E.L. Barger (1982). Principles of farm machinery. Willey and Sons Inc. New York.
El-Ashry, A.S. (2011). Design and construction of a flax rubbing deseeder. Misr J. of Agr. Eng., 28(2): 250-265.
El-Ashry, A.S.; O.A. Omar and E.H. Musa (2006). Improvement of tractor performance in respect of increasing threshing efficiency of flax crop. Misr J. of Agr. Eng., 23(3): 532-548.
Kepner, R.A.; R. Bainer and L.E. Barger (1982). Principle of farm machinery, The AVI Pub. Comp. INC, Westport conn.
Khater, A.E.A. (2000). Mechanization of sunflower threshing. M.Sc. thesis Agr. Mech. Dept. Fac. of Agr. Mansoura Univ. pp: 86.
Klenin, H.I.; I.F. Popover and V.A. Sakum (1985). Agriculture machines. American publishing. Pvt. LT D. New York.
Lockwood, F.B. and R. Dunstan (1971). Electrical engineering principles. Meinemann Educational Books. Ltd. London.
Mesquita, C.M. and M.A. Hanna (1993). Soybean threshing mechanics: I Frictional rubbing by flat belts. Transactions of ASAE, 36 (2): 275-279.
Schild, J.; P. Baltensperger; P. Lyon; G. Hein and E. Kerr (1991). Sunflower production in Nebraska. G 91 -1026- A: 1-7.
Sudajan, S.; V.M. Salokhe and K. Triratanasirichai (2002). Effect of type of drum, drum speed and feed rate on sunflower threshing. Biosystems Eng. J. 83 (4): 413–421 | ||
|
Statistics Article View: 152 PDF Download: 271 |
||
