Design of variable screw pitch rib snapping roller and residue cutter for corn harvesters

The blocking between two snapping rollers will seriously constrict the harvesting efficiency for corn harvester. A variable screw pitch rib snapping roller was developed to solve this problem. The comparative experiment between fixed screw pitch rib snapping rollers and variable screw pitch rib snap...

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Bibliographic Details
Published in:International journal of agricultural and biological engineering 2016-01, Vol.9 (1), p.27-27
Main Authors: Gang, Wang, Honglei, Jia, Lie, Tang, Jian, Zhuang, Xinming, Jiang, Mingzhuo, Guo
Format: Article
Language:English
Subjects:
Design
Efficiency
Soil erosion
Velocity
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Summary:The blocking between two snapping rollers will seriously constrict the harvesting efficiency for corn harvester. A variable screw pitch rib snapping roller was developed to solve this problem. The comparative experiment between fixed screw pitch rib snapping rollers and variable screw pitch rib snapping rollers illustrated that variable screw pitch ribs can avoid corn-stalk blocking effectively, and it can improve working efficiency by 56.7%. Conservation tillage with standing corn residue was testified that it had a strong control of soil wind erosion. In order to implement this mode of conservation tillage at a production scale, a cutter was developed in this study. Subsequently, two experiments were conducted, one was to test the cutting ratio (defined as the totally cut off stalk population divided by total stalk population), and the other one was to test standing-residue height. The experiment results showed that the mean cutting ratio increased significantly (p
ISSN:1934-6344
1934-6352
DOI:10.3965/j.ijabe.20160901.1941