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顿国强,于春玲,郭艳玲,李海山,杨永振,陈海涛,纪文义.间隙啮合渐开线齿轮排肥器的结构优化仿真及试验[J].华中农业大学学报,2020,39(1):171-179
间隙啮合渐开线齿轮排肥器的结构优化仿真及试验
Optimization simulation and experiment of structure of interval meshing involute gear fertilizer apparatus
投稿时间:2019-03-28  
DOI:
中文关键词:  排肥器  间隙啮合渐开线齿轮  排肥均匀性  外槽轮式排肥器  施肥机械  结构参数  3D打印
英文关键词:fertilizer apparatus  interval meshing involute gear  discharging uniformity  outer groove wheel fertilizer apparatus  fertilizing machinery  structural parameters  3D printing
基金项目:国家重点研发计划项目(2018YFD0201004); 国家科技支撑计划项目(2014BAD11B01-A02);中央高校基本科研业务费专项(2572017BB10); 东北林业大学大学生国家级创新训练计划项目(201810225056);中央高校建设世界一流大学(学科)和特色发展引导专项资金暨双一流经费(41113278)
作者单位E-mail
顿国强 东北林业大学机电工程学院哈尔滨 150040 dunguoqiang1986@163.com 
于春玲 东北林业大学机电工程学院哈尔滨 150040  
郭艳玲 东北林业大学机电工程学院哈尔滨 150040 guo.yl@hotmail.com 
李海山 东北林业大学机电工程学院哈尔滨 150040  
杨永振 东北林业大学机电工程学院哈尔滨 150040  
陈海涛 北农业大学工程学院哈尔滨 150030  
纪文义 北农业大学工程学院哈尔滨 150030  
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中文摘要:
      为解决排肥器排肥不均匀的问题,设计了间隙啮合渐开线齿轮排肥器,为考察排肥齿轮结构参数对排肥均匀性的影响规律,在理论分析的基础上应用离散元法对排肥过程进行仿真分析。以排肥轮齿数、排肥轮间隙、轮齿压力角为试验因素,以排肥均匀度变异系数为评价指标进行正交优化试验,结果发现,影响排肥均匀度的因素大小为排肥轮齿数>排肥轮间隙>轮齿压力角,其中,排肥轮齿数对排肥均匀度有显著影响(P<0.05),排肥轮的最优结构参数组合为排肥轮齿数12、排肥轮间隙6 mm、轮齿压力角25°,此时排肥均匀度变异系数最小,为17.59%。加工最优结构参数组合下的间隙啮合渐开线齿轮排肥器,并进行台架试验,试验结果显示,台架试验排肥量与理论排肥量相对误差为-0.95%,与仿真值相对误差为-2.41%,台架试验均匀度变异系数为19.01%,与仿真值基本一致,同等条件下外槽轮排肥器的变异系数为31.96%,台架试验排肥器变异系数比外槽轮排肥器变异系数小12.95个百分点,结构优化提高了排肥均匀性,符合设计要求。
英文摘要:
      The interval meshing involute gear fertilizer apparatus was designed to solve the problems of uneven discharging of outer-groove fertilizer apparatus. Based on theoretical analysis,the fertilizer discharging process has been simulated by the discrete element method to study the effects of the structural parameters of fertilizer wheel on the uniformity of discharging performance. The orthogonal optimization test using the tooth number,interval and pressure angle of gear tooth of the fertilizer wheel as test factors and the variation coefficient of the uniformity of fertilizer discharging as test index was conducted. The results showed that three factors affecting index was in the order of tooth number > interval > pressure angle. The tooth number had significant influence on the uniformity of fertilizer discharging (P<0.05).The optimal structural parameters of fertilizer wheel included the tooth number of 12,6 mm interval,25° gear pressure angle. The minimum variation coefficient of the uniformity of fertilizer discharging of fertilizer apparatus is 17.59%. The interval meshing involute gear fertilizer apparatus with optimal structure parameters was trial-developed and experimented. The results showed that relative error of the fertilizer discharging mass of the test with theoretical value,simulation value the variation coefficient of the test was -0.95%,-2.41%,and 19.01%,respectively. The results were basically consistent with the simulation result. The variation coefficient of outer groove wheel fertilizer apparatus was 31.96%. The variation coefficient of the test was 12.95 percentage point,smaller than that of outer groove wheel fertilizer apparatus. The results meet design requirements and will provide references for the optimization of fertilizer apparatus.
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