| 刘小鹏,史增录,姚洁婷,张学军,鄢金山,张朝书,刘蕾.卷辊式耕层残膜回收机卸膜装置的设计与试验[J].干旱地区农业研究,2024,(5):271~282 |
| 卷辊式耕层残膜回收机卸膜装置的设计与试验 |
| Design and experiment of film unloading device for roller\|type residual film recycling machine |
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| DOI：10.7606/j.issn.1000-7601.2024.05.28 |
| 中文关键词: 残膜回收机 卸膜装置 卷辊式 设计 试验 |
| 英文关键词:residual film recycling machine film unloading device roller\|type design experiment |
| 基金项目:国家自然科学基金(52105278)；新疆维吾尔自治区农机研发制造推广应用一体化项目(YTHSD2022-10)；新疆维吾尔自治区重点研发计划项目（2022B02038） |
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| 中文摘要: |
| 针对卷辊式耕层残膜回收机卸膜装置存在卸膜性能不可靠的问题，设计了一种卷辊反转松膜及卸膜辊强制卸膜装置。卸膜装置主要由正反转机构和卸膜辊组成，可有效实现卸膜功能。对关键工作部件进行了分析和参数计算，并确定有效卸膜条件：卸膜辊转速为167.86 r·min-1，卷辊反转转速为43 r·min-1。以机具前进速度、卸膜辊转速及卷辊反转转速为试验因素，以卸膜率与回收混合物含土率为评价指标，设计了三因素三水平正交试验。运用Design-Expert 13.0软件对试验结果进行分析，得到各因素与评价指标之间的交互作用，分析得出各试验因素对卸膜率的影响程度大小依次为卷辊反转转速、卸膜辊转速、机具前进速度；对残膜回收混合物含土率的影响程度大小依次为卸膜辊转速、机具前进速度、卷辊反转转速。通过对回归模型的优化，得到适合该卸膜装置作业最优参数组合为：机具前进速度为4.37 km·h-1，卷辊反转转速为184.70 r·min-1，卸膜辊转速为61.95 r·min-1。以最优参数组合进行了田间试验，结果表明该装置的卸膜率为73.21%，回收混合物含土率为16.20%，与理论优化值相对误差均不超过1%，能满足作业的需要。 |
| 英文摘要: |
| To solve the problem of unreliable performance of the film unwinding device in the film recovery machine for the plow layer, a device for loosening the film by reversing the roller and forcibly unwinding the film from the unwinding roller was designed. The film unwinding device mainly consists of a forward and reverse mechanism and an unwinding roller, effectively achieving the film unwinding function. Analysis and parameter calculations were conducted for key working components, and effect of film unwinding conditions were determined. The experiment set the unwinding roller speed set at 167.86 r·min-1 and the roller reversal speed at 43 r·min-1. Using the forward speed of the implement, the unwinding roller speed, and the roller reversal speed as experimental factors, and using the film unwinding rate and the soil content in the recovered mixture as evaluation indicators, a three\|factor, three\|level orthogonal experiment was used. The experimental results were analyzed using Design\|Expert 13.0 software to obtain the interaction effects between each factor and the evaluation indicators. It was found that the factors affecting the film unwinding rate (in decreasing order of impact) were the roller reversal speed, the unwinding roller speed, and the implement’s forward speed. For the soil content in the recovered mixture, the influencing factors (in decreasing order of impact) were the unwinding roller speed, the implement’s forward speed, and the roller reversal speed. By optimizing the regression model, the most suitable parameter combination for the operation of the film unwinding device was determined to be an implement forward speed of 4.37 km·h-1, a roller reversal speed of 184.70 r·min-1, and an unwinding roller speed of 61.95 r·min-1. Field tests were conducted using this optimal parameter combination. The results demonstrated that the film unwinding rate of the device was 73.21%, and the soil content in the recovered mixture was 16.20%. The relative errors compared to the theoretically optimized values did not exceed 1%, meeting the design requirements. |
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