杆齿式残膜回收机的设计与试验
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摘要
针对目前国内残膜回收机具存在拾膜、卸膜机构复杂且可靠性低的问题,设计了杆齿式残膜回收机。介绍了杆齿式残膜回收机的工作原理,对关键部件进行了设计分析,确定了拾膜机构、卸膜机构及起膜装置的关键设计参数。以机具行进速度、拾膜杆齿线速度与机具行进速度比、拾膜杆齿入土深度为影响因素,利用土槽台架试验系统,进行了三因素三水平响应面试验,并通过Design-Expert数据处理软件对拾膜率进行优化分析。结果表明:当机具行进速度为1.2m/s、速比为1.0、杆齿入土深度为55mm时,拾膜率和卸膜率达到最优。
According to the current domestic residual plastic film collectors which have complex picking-up film and unloading film mechanism and low reliability,the pole-tooth type residual plastic film collector was designed. This research introduced the working principle of the pole-tooth type residual plastic film collector,designed and analysed the key components,and determined the key design parameters of the picking-up film,unloading film and loosen film mechanism. Taking the machine operating speed,pole-tooth axis speed,machine operating ratio and the embedded depth of the pole-tooth for lifting film as the influence factors,the three factors and three levels response surface analysis test was did by using soil-bin trolley experiment. the picking-up film rate was optimized by the Design-Expert data analysis software. The results show that: when the machine operating speed is 1. 2 m/s and the speed ratio is 1,the embedded depth of the pole-teeth for lifting film is 55 mm,the rate of picking-up film and unloading film will reach optimum.
According to the current domestic residual plastic film collectors which have complex picking-up film and unloading film mechanism and low reliability,the pole-tooth type residual plastic film collector was designed. This research introduced the working principle of the pole-tooth type residual plastic film collector,designed and analysed the key components,and determined the key design parameters of the picking-up film,unloading film and loosen film mechanism. Taking the machine operating speed,pole-tooth axis speed,machine operating ratio and the embedded depth of the pole-tooth for lifting film as the influence factors,the three factors and three levels response surface analysis test was did by using soil-bin trolley experiment. the picking-up film rate was optimized by the Design-Expert data analysis software. The results show that: when the machine operating speed is 1. 2 m/s and the speed ratio is 1,the embedded depth of the pole-teeth for lifting film is 55 mm,the rate of picking-up film and unloading film will reach optimum.
引文
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[2]王频.残膜污染治理的对策和措施[J].农业工程学报,1998(3):190-193.
[3]刘艳霞.中国农村地膜残留污染现状及治理对策思考[D].杨凌:西北农林科技大学,2014.
[4]舒帆.我国农用地膜利用与回收及其财政支持政策研究[D].北京:中国农业科学院,2014.
[5]段文献,王吉奎,李阳,等.夹指链式残膜回收装置的设计及试验[J].农业工程学报,2016,32(19):35-42.
[6]陈发,史建新,王学农,等.弧型齿残膜捡拾滚筒捡膜的机理[J].农业机械学报,2006(6):36-41.
[7]张新超,毕新胜,王志欢,等.钉齿滚筒式残膜回收机关键部件的设计与研究[J].农机化研究,2017,39(10):72-76.
[8]宁松瑞,左强,石建初,等.新疆典型膜下滴灌棉花种植模式的用水效率与效益[J].农业工程学报,2013(22):90-99.
[9]孙恒,陈作模.机械原理[M].5版.北京:高等教育出版社,1996.
[10]谢建华.垄作残膜捡拾及脱卸装置的研究[D].北京:中国农业大学,2014.
[11]曹晓冉.小型移动土槽试验系统的设计及其振动分析[D].乌鲁木齐:新疆农业大学,2016.