采棉机发动机罩网自动清理装置设计与分析
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摘要
为解决采棉机发动机防护罩网易堵塞、人工清理性能低等问题、针对采棉机工作的实际需求,设计了一种采棉机发动机防护罩网自动清理装置,并分别对其结构、工作原理进行了阐述。在ANSYS Workbench环境下对刷辊进行模态分析,当转速为240r/min时刷辊不会发生共振,满足使用要求。同时,对吸附杂质的物理特性和刷辊刷毛的力学特性进行了分析,并对清理装置清扫刷辊清扫率和人工的清扫率进行试验对比。结果表明:人工清扫杂质清扫率在80%～85%之间,清理装置刷辊工作过程中杂质清扫率大于90%,装置在工作过程中可靠性高,各项性能均满足要求。本设计为该自动清理装置的后期进一步研发提供了技术支撑和理论依据。
In order to solve the problem of blockage of Net Ease in the hood of the cotton picker engine and the low performance of manual cleaning. In view of the actual needs of the work of the cotton picker,a kind of automatic cleaning device for the protective cover net of the engine of the cotton picker is designed and designed. The structure and working principle of the machine are expounded. In the environment of ANSYS Workbench,the modal analysis of the brush roller is carried out. When the brush roller is 240 r/min,the brush roll can not resonate and meet the requirements of the use.The physical characteristics of the adsorbed impurities and the mechanical properties of the brush bristles are analyzed.Finally,the comparison and analysis of the cleaning rate of cleaning brush roll and the manual cleaning rate of the cleaning device are carried out. The experimental results show that the cleaning rate of the artificial cleaning is between 80%-85% and the cleaning rate of the cleaning device is more than 90%,and the reliability of the device is high in the working process and the performance meets the requirements. The design and design provide technical support and theoretical basis for the further development of the automatic cleaning device at the later stage.
In order to solve the problem of blockage of Net Ease in the hood of the cotton picker engine and the low performance of manual cleaning. In view of the actual needs of the work of the cotton picker,a kind of automatic cleaning device for the protective cover net of the engine of the cotton picker is designed and designed. The structure and working principle of the machine are expounded. In the environment of ANSYS Workbench,the modal analysis of the brush roller is carried out. When the brush roller is 240 r/min,the brush roll can not resonate and meet the requirements of the use.The physical characteristics of the adsorbed impurities and the mechanical properties of the brush bristles are analyzed.Finally,the comparison and analysis of the cleaning rate of cleaning brush roll and the manual cleaning rate of the cleaning device are carried out. The experimental results show that the cleaning rate of the artificial cleaning is between 80%-85% and the cleaning rate of the cleaning device is more than 90%,and the reliability of the device is high in the working process and the performance meets the requirements. The design and design provide technical support and theoretical basis for the further development of the automatic cleaning device at the later stage.
引文
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[2]高学山,徐殿国,王炎,等.全方位地面移动清扫机器人[J].机械工程学报,2008,44(3):228-233.
[3]简洁.电动清扫车清扫作业装置的设计与研究[D].南京:南京理工大学,2012.
[4]鲁兵,王旭峰,张攀峰,等.新型落地红枣收获机的设计[J].农机化研究,2017,39(12):68-72.
[5]Abdel Wahab M,Parker G,Graham A,et al.Modeling rotary sweeping brushes and analyzing brush characteristic using finite element method[J].Finite Elements in Analysis and Design,2007,43(6):521-532.
[6]Libardo V,Vanegas M,Magd M,et al.Theoretical Model for the dynamics of an unconstrained cutting brush of a street sweeper[C]//Asme 8th Biennial Conference on Engineering Systems Design and Analysis.Torino:ASME,2006.
[7]郭枭,韩雪,田瑞,等.考虑光伏组件发电性能的自动除尘系统运行时间优化[J].农业工程学报,2015,31(21):211-219.
[8]党永强,李成松,杨兰涛,等.酿酒葡萄收获机收集输送装置的设计与理论分析[J].农机化研究,2018,40(11):251-256.
[9]彭宇源.电动清扫车的新型清扫装置设计与流场仿真[D].镇江:江苏大学,2017.
[10]王聪慧,张玉和,任谦,等.筒体旋转风刀自动清扫装置的研制与应用[J].烟草科技,2014(7):24-26.
[11]鲁兵,王旭峰,张攀峰,等.新型落地红枣收获机的设计[J].农机化研究,2017,39(12):68-72.
[12]柴康杰,胡志超,游兆延,等.基于ANSYS的半喂入花生摘果机机架模态分析[J].江苏农业科学,2016,44(8):407-409.
[13]魏效玲,王佳宁,刘强.基于ANSYS Workbench的滚珠丝杠副模态分析[J].河北工程大学学报:自然科学版,2017,34(1):103-106.
[14]魏俊,王云霞,石磊,等.刷辊式采棉机刷棉辊动力学分析[J].农机化研究,2016,38(6):106-109.
[15]刘彦杰,冯雄裕,袁兴,等.烟叶在线分选系统筛网自动清扫系统研究[J].机械制造与自动化,2016,45(3):210-212.
[16]彭宇源,顾寄南.基于MATLAB的清扫车滚筒装置设计和参数优化[J].机械制造,2016,54(7):48-50.
[17]严萍华.电动清扫车的总体设计以及动力系统的研究[D].南京:南京理工大学,2012.
[18]丁凯,张炳成,刁雪洋,等.红枣收获机激振装置激振频率优化与试验[J].农机化研究,2019,41(3):21.