齿链式残膜回收机设计与试验
Design and experiment of a toothed chain residual membrane recycling machine
目的 针对现有残膜回收机存在自动卸膜困难、地膜漏收等问题,设计了1种齿链式残膜回收机。 方法 对齿链式残膜回收机的整体结构、关键部件的设计思路及工作原理进行了分析。该残膜回收机的关键部件包括:起膜装置、输送装置、拾膜装置和卸膜机构,并对影响拾膜率的主要因素进行了试验分析和参数优化。 结果 试验因素对拾膜率影响大小顺序为:拾膜装置下从动链轮转速>机具作业速度>起膜装置入土角.优化模型最优参数组合为:拾膜装置下从动链轮转速197.579 r/min,机具作业速度 7 km/h,起膜装置入土角 41.173 °,此参数下,仿真试验结果拾膜率为89.0%。以拾膜装置下从动链轮转速200 r/min,机具作业速度7 km/h,起膜装置入土角 41°,的参数进行试验验证,拾膜率平均值达到91.4%。 结论 田间试验表明,优化参数组合可靠,满足回收机作业要求,可为齿链式残膜回收机后续研究提供参考。
Objective Since the existing residual membrane recycling machine has the problem of automatic membrane unloading difficulty and membrane leakage,a toothed chain type residual membrane recycling machine has been designed. Method The overall design scheme was described,and the key devices included membrane lifting device,conveying device,membrane picking device and membrane unloading device,etc.The main factors affecting the membrane picking rate were analyzed and the parameters were optimized. Result The order of influence of the test factors on the membrane picking rate is: driven sprocket speed under the membrane picking device > working speed of the machine > penetrating angle of the membrane lifting device.The optimal parameter combination of the optimization model is: the driven sprocket speed under the membrane picking device is 197.579 r/min,the working speed of the machine is 7 km/h,and the penetration angle of the membrane lifting device is 41.173°.Under these parameters,the membrane picking rate is 89.0% according to the simulation test results.The experimental results show that the average membrane picking rate reaches 91.4% under the parameters of the driven sprocket speed 200 rpm under the membrane picking device,the working speed of the machine is 7 km/h,and the penetration angle of membrane lifting device is 41°. Conclusion The field experiment shows that the optimized parameter combination is reliable and meets the design requirements of the residual membrane recycling machine,which can provide a reference for the subsequent research of the tooth chain type residual membrane recycling machine.
齿链式 / 残膜回收机 / 起膜装置 / 拾膜装置 / 参数优化
tooth chain / residual membrane recycling machine / membrane-lifting device / pick up membrane device / parameter optimization
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