Up to journal
for Research & Developement
Journal of Materials Science: Materials in Electronics
Impact Factor
0/000
Available
2000 - 2020
Volumes
8
Issues
25
Articles
218
Open Access
66


Journal of Researches in Mechanics of Agricultural Machinery
Design, construction and evaluation of a chickpea harvesting header with fingers and evaluation the effects of header parameters on the losses


 submission: 28/04/2019 | acception: 01/06/2019 | publication: 19/10/2019

DOI 

Authors
Vahid Rostampour1*, Asad Modares Motlagh2

1-Urmia University،rostampoor2011@gmail.com

2-Urmia University،amodmot@gmail.com



478 Downloads

Abstract

The manual harvesting of chickpea is costly and tedious. Therefore, in this study a chickpea harvesting header was designed, constructed, and evaluated. This header has long stripper fingers and with forward movement of header, pods continuously jammed between the fingers and were separated from bushes. The following four points were considered in designing of header: geometry of fingers, angle of fingers to the horizontal surface (A), fingers length (L) and distance between fingers (S). In field evaluations, the effect of fingers angle (۱۵°, ۲۰° and ۲۵°) and fingers distance (۷ mm and ۱۰ mm) on losses due to remained pods on bushes (Lp) and losses due to spilled pods on the ground (Lf) were evaluated. Furthermore, by measuring total losses (LT = Lf + Lp) in different configuration of header, the best combination of fingers’ angle and fingers’ distance was determined. The results demonstrated that, the effect of increasing the fingers angle and fingers distance on both types of Lp losses and LF losses was significant (P<۱%) and incremental. However, the effect of the fingers angle (A) was greater on LF losses and the effect of the fingers distance (S) was higher on Lp losses. The lowest amounts in total losses (LT) (P< ۰.۰۵) were ۵۷.۴% and ۲۴.۷% in layouts of headers of number ۱ (S =۷mm and A=۱۵°) and number ۲ (S =۷mm and A=۲۰°), respectively. The manual harvesting of chickpea is costly and tedious. Therefore, in this study a chickpea harvesting header was designed, constructed, and evaluated. This header has long stripper fingers and with forward movement of header, pods continuously jammed between the fingers and were separated from bushes. The following four points were considered in designing of header: geometry of fingers, angle of fingers to the horizontal surface (A), fingers length (L) and distance between fingers (S). In field evaluations, the effect of fingers angle (۱۵°, ۲۰° and ۲۵°) and fingers distance (۷ mm and ۱۰ mm) on losses due to remained pods on bushes (Lp) and losses due to spilled pods on the ground (Lf) were evaluated. Furthermore, by measuring total losses (LT = Lf + Lp) in different configuration of header, the best combination of fingers’ angle and fingers’ distance was determined. The results demonstrated that, the effect of increasing the fingers angle and fingers distance on both types of Lp losses and LF losses was significant (P<۱%) and incremental. However, the effect of the fingers angle (A) was greater on LF losses and the effect of the fingers distance (S) was higher on Lp losses. The lowest amounts in total losses (LT) (P< ۰.۰۵) were ۵۷.۴% and ۲۴.۷% in layouts of headers of number ۱ (S =۷mm and A=۱۵°) and number ۲ (S =۷mm and A=۲۰°), respectively.




Keywords

Chickpea  Finger  Harvesting losses  Header 



Download fulltext PDF


Open Access

Download

Citation





References





Announcements  

  •  No announces available
Indexes  

 

no item exists