Variable-Diameter Drum with Concentric Threshing Gap and Performance Comparison Experiment
Abstract
:1. Introduction
2. Materials and Methods
2.1. Comparative Analysis of Both Adjustment Methods
2.2. Design of Variable-Diameter Drum
2.2.1. Overall Structure of Variable-Diameter Drum
2.2.2. Diameter Adjustment Device
2.2.3. Electronic Control Self-Locking Device
2.3. Comparative Experiment in Terms of Threshing Performance
3. Results and Discussion
3.1. Overall Assembly and Operating Principle of Variable-Diameter Drum
3.2. Grain-Entrainment Loss Rate
3.3. Grain Damage Rate and Threshing Efficiency
3.4. Power Consumption of Thresher Device
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Forward Speed/(m/s) | Initial Gap/mm | Threshing Gap with Threshing Drum Adjustment Type/mm | Threshing Gap with Concave Adjustment Type/mm |
---|---|---|---|
0.6 | 20 | 30 | 20–30 |
10 | 10–20 | ||
0.8 | 20 | 30 | 20–30 |
10 | 10–20 | ||
1.0 | 20 | 30 | 20–30 |
10 | 10–20 | ||
1.2 | 20 | 30 | 20–30 |
10 | 10–20 | ||
1.4 | 20 | 30 | 20–30 |
10 | 10–20 |
Parameter | Value |
---|---|
Crop height/cm | 78.5 |
Spike head height/cm | 17.2 |
Grain moisture content /% | 20.8 |
Straw moisture content /% | 70.4 |
MOG(material other than grain)/Grain ratio | 2.65 |
Number of grains per spike seed | 129 |
Weight of 1000 grains /g | 31.9 |
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Li, Y.; Su, Z.; Liang, Z.; Li, Y. Variable-Diameter Drum with Concentric Threshing Gap and Performance Comparison Experiment. Appl. Sci. 2020, 10, 5386. https://doi.org/10.3390/app10155386
Li Y, Su Z, Liang Z, Li Y. Variable-Diameter Drum with Concentric Threshing Gap and Performance Comparison Experiment. Applied Sciences. 2020; 10(15):5386. https://doi.org/10.3390/app10155386
Chicago/Turabian StyleLi, Yaoming, Zhan Su, Zhenwei Liang, and Yu Li. 2020. "Variable-Diameter Drum with Concentric Threshing Gap and Performance Comparison Experiment" Applied Sciences 10, no. 15: 5386. https://doi.org/10.3390/app10155386
APA StyleLi, Y., Su, Z., Liang, Z., & Li, Y. (2020). Variable-Diameter Drum with Concentric Threshing Gap and Performance Comparison Experiment. Applied Sciences, 10(15), 5386. https://doi.org/10.3390/app10155386