残膜回收机单组仿形搂膜机构的设计与试验

王科杰; 胡斌; 罗昕; 陈学庚; 郑炫; 颜利民; 缑海啸

doi:10.11975/j.issn.1002-6819.2017.08.002

残膜回收机单组仿形搂膜机构的设计与试验

1.
石河子大学机械电气工程学院，石河子 832000
2.
新疆农垦科学院机械装备研究所，石河子 832000

基金项目: 新疆生产建设兵团重大科技专项（2014AA002）；农业部行业专项（201503105）

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出版历程
- 收稿日期: 2016-07-13
- 修回日期: 2017-01-23
- 发布日期: 2017-04-14

Design and experiment of monomer profiling raking-film mechanism of residue plastic film collector

1.
College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
2.
Mechanical Equipment Research Institute, Xinjiang Academy of Agricultural and Reclamation Science, Shihezi 832000, China

摘要

摘要: 搂膜作业是新疆目前残膜回收的主要工作方式，在残膜回收机回收工作过程中，因棉地环境复杂，现有残膜回收机整体仿形搂膜效果差，使得搂膜弹齿无法对起伏程度不同的棉地同时进行单组仿形搂膜，造成残膜回收率低等问题，针对此问题，该文提出了一种单组仿形搂膜机构。通过对该机构进行理论设计，利用搭建的土槽台架试验装置，以弹齿数量、试验车速度、弹齿直径为影响因素，搂膜率为评价指标，进行了二次旋转正交组合试验。通过Design-Expert 8.0.6数据分析软件，建立各影响因素与指标的数学回归模型，分析了显著因素与评价指标之间的关系，优化试验参数，确定最优参数组合：弹齿数量5个，弹齿直径12 mm，试验车速度1.85 m/s。根据该试验参数组合，进行台架试验验证，结果表明：优化参数组合下的搂膜率>88.5%，优化预测模型可靠。通过在新疆昌吉五家渠共青团农场对站立棉秸秆的田间进行搂膜试验，表明该搂膜机构能够满足残膜回收的技术要求，为单组仿形搂膜机具的设计提供了参考依据。
- 农业机械 /
- 塑料薄膜 /
- 优化 /
- 单组仿形 /
- 搂膜机构 /
- 土槽试验 /
- 残膜回收
Abstract: Abstract: The collecting machinery of mulching plastic film offers an important technological means to curb the farmland residue pollution. The main method of residual film recycling in Xinjiang is the raking-film working. Due to the complex cotton field environment and the poor raking film effect of whole profiling of the used plastic film collector, the raking film tooth can not simultaneously carry out the monomer film collecting with copying with different cotton field terrain, which causes a low collecting rate during the process of residual film recycling. For the problem, this paper proposed a collecting-film mechanism of the profiling of the monomer. The theoretical design and mechanical analysis of the mechanism of collecting film were carried out. With the method of complex vector, the profiling-mechanism dynamics model was established, which involved the relationship between the reacting force of soil to land wheel of profiling and the spring-tooth resilience force. Based on the establishment and analysis of dynamics model, the collecting-film influencing factor could be initially determined. And the relevance of the spring-tooth stress states and the raking-film mechanism's operating condition was further explored. In order to confirm the operation parameters of the device of collecting film, the experiment of the response surface with 5 levels and 3 factors was accomplished on the soil bin trolley test-bed with the spring tooth of the raking film. Three test parameters, i.e. spring tooth number, test-car speed and spring tooth diameter, were chosen as the influence factors of the test-bed experiment. And collecting rate of residual film recycling was selected as the evaluation index of the test-bed experiment. Quadratic orthogonal rotation combination trial design was applied to build the quadratic polynomial regressive model, which interpreted the relationship between the experimental influence factors and evaluation index. Using the data analysis software of Design-Expert 8.0.6, the matching mathematical regression pattern was developed, the relation of salient factors with the evaluation index was analyzed, and the parameters of test were improved. The optimum combination of parameters could be reached when the number of spring teeth was 5, the diameter of spring tooth was 12 mm, and the speed of test car was 1.85 m/s. By using the soil bin trolley testing, the optimized results were verified on the basis of optimization parameters combination. The experimental consequences manifested that the collecting-film rate of the mechanism of monomer profiling raking-film was more than 88.5%, the optimization prediction model based on the quadratic multinomial fitting model was reliable, and the film recycling requirement could be met by the structure and working parameters combination. According to the standing cotton stalks standard field experiment in Changji, Xinjiang, the experimental cotton field was selected, which was pressed by the wheel of picking cotton locomotive and produced different fluctuation of pits and soil slope, and the results from the cotton field and the laboratory were basically consistent. The research provides an original theoretical reference for the design of raking film mechanism of single profiling, as well as the parameter optimization of remnant plastic film collector.
- agricultural machinery /
- plastic films /
- optimization /
- monomer profiling /
- collecting-film mechanism /
- test-bed experiment /
- residue plastic film

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参考文献(31)

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