Virtual simulation analysis and verification on working stability of sugarcane tail-breaking mechanism
Sucrose accounts for about 90% of the total amount of sugar in China. However, the mechanization degree and working efficiency on planting, harvesting and sugaring of sugarcane in China is far lower than western countries, and especially the problem of high impurity rate affecting the sugaring effic...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2015-07-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2014.12.171 |
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| Summary: | Sucrose accounts for about 90% of the total amount of sugar in China. However, the mechanization degree and working efficiency on planting, harvesting and sugaring of sugarcane in China is far lower than western countries, and especially the problem of high impurity rate affecting the sugaring efficiency after sugarcane harvest is more serious. Because the tail of sugarcane is low in sugar, removing the tail of sugarcane in the harvest process can effectively improve the efficiency of sugaring.As the mechanical strength of the tail is significantly lower than the middle and the base of sugarcane stalk, an idea on design of the tail-breaking mechanism was proposed to remove the tail of sugarcane. In addition, by simulation analysis on the mechanism of work and virtual prototype, a reasonable tail-breaking mechanism was designed.Because the flexure strength, compressive strength and shock strength of the tail were significantly lower than any other part of the sugarcane, the design scheme of the tail-breaking mechanism on the whole stalk sugarcane harvester was discussed. Three kinds of tail-breaking mechanism were designed by analyzing the design requirements and working mechanism. Co-simulation analysis by ANSYS and ADAMS was employed to compare the difference among the three kinds of tail-breaking mechanism.The results showed that the anti-movement tail-breaking mechanism was proved to be reasonable and feasible, with better passing ability, and smaller degree of jumping up and down or running around. Besides, it also had good function of tail-breaking. Optimal structure parameters for this anti-movement tail-breaking mechanism were obtained by virtual tests as follows: 320-330 mm of center distance between the top and bottom tail-breaking wheels, and 5 10 degree of stagger angle between the top and bottom tail-breaking elements. According to the optimal structural parameters, the physical prototype verification test was operated with the whole stalk sugarcane harvester with anti-movement tail-breaking mechanism. The results showed that, the tail-breaking mechanism was reasonably practicable with the tail-breaking rate of 92.5%, and the ideal tail-breaking rate could reach 87.5%. It can provide a reference for the design of tail-breaking mechanism for the whole stalk sugarcane harvester. |
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| ISSN: | 1008-9209 2097-5155 |