红枣采收激振器的设计与运动仿真
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摘要
为了降低人工采收成本,提高红枣的收获效率,促进红枣机械化收获方式及红枣产业的健康发展,设计了一种由3个偏心块为动力源的激振器。该激振器采用液压马达驱动,利用同步带轮驱动偏心块转动产生的离心力力偶做功使激振器的壳体振动。对壳体进行受力分析和运动形式的理论分析,并利用Solid Works软件建立激振器的三维模型,导入ADAMS软件中进行无阻尼仿真分析,通过受力分析和理论分析证明壳体的运动规律符合简谐运动。仿真结果表明:壳体的运动规律与理论分析基本一致,验证了阻尼装置是激振器不可缺少的一部分。本研究可为红枣收获机激振装置的设计提供理论基础和技术支持。
In order to reduce the cost of artificial harvesting,improve the harvesting efficiency of jujube and promote the healthy development of jujube mechanized harvesting methods and jujube industry. A vibration exciter with three eccentric blocks as power source was designed. The vibration exciter driven by a hydraulic motor. The centrifugal force generated by the rotation of the eccentric block driven by the timing belt pulley couples the vibration of the vibration exciter to the shell of the exciter. The force analysis and the movement form of the vibration case are analyzed,and the Solid Works is used to establish the 3 D model of the exciter. The three-dimensional model is stored in the ADAMS for undamped simulation analysis. The simulation results show that the movement law of the shell is basically the same as the theoretical analysis,which is harmonic motion. It is also verified that the damping device is an indispensable part of the exciter.This study can provide theoretical basis and technical support for the design of the excitation device for jujube harvester.
In order to reduce the cost of artificial harvesting,improve the harvesting efficiency of jujube and promote the healthy development of jujube mechanized harvesting methods and jujube industry. A vibration exciter with three eccentric blocks as power source was designed. The vibration exciter driven by a hydraulic motor. The centrifugal force generated by the rotation of the eccentric block driven by the timing belt pulley couples the vibration of the vibration exciter to the shell of the exciter. The force analysis and the movement form of the vibration case are analyzed,and the Solid Works is used to establish the 3 D model of the exciter. The three-dimensional model is stored in the ADAMS for undamped simulation analysis. The simulation results show that the movement law of the shell is basically the same as the theoretical analysis,which is harmonic motion. It is also verified that the damping device is an indispensable part of the exciter.This study can provide theoretical basis and technical support for the design of the excitation device for jujube harvester.
引文
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[2]张莹,刘芳,何忠伟.我国红枣产业的经济分析与前景展望[J].农业展望,2011,7(10):36-40.
[3]漆联全.新疆红枣产业的现状、要求及其发展趋势[J].新疆农业科学,2010,47(S2):8-12.
[4]刘孟军.中国红枣产业的现状与发展建议[J].果农之友,2008(3):3-4,26.
[5]杨红英.矮化密植红枣采收装置采收部件的设计及试验研究[D].石河子:石河子大学,2013.
[6]王田利.我国红枣产销概况[J].中国果业信息,2008,25(1):21-22.
[7]张亚欧,坎杂,李成松,等.矮化密植红枣收获机捡拾装置的设计[J].农机化研究,2016,38(4):71-75.
[8]郭晓成,李倩娥.枣树栽培新技术[M].杨凌:西北农林科技大学出版社,2005:8-10.
[9]付威,张志元,刘玉冬,等.振动激励下枣树力传递效果室内模拟试验[J].农业工程学报,2017,33(17):65-72.
[10]史高昆.气吸式红枣收获机设计与试验研究[D].阿拉尔:塔里木大学,2014.
[11]汤智辉,贾首星,沈从举,等.VIBROLIV干果采收机的引进与试验[J].新疆农机化,2009(4):38-40.
[12]汤智辉,孟祥金,沈从举,等.机械振动式林果采收机的设计与试验研究[J].农机化研究,2010,32(8):65-69.
[13]汤智辉,沈从举,孟祥金,等.4YS-24型红枣收获机的研制[J].新疆农机化,2010(1):30-32.
[14]孟祥金.手持式红枣振动收获机的设计研究[D].石河子:石河子大学,2014.
[15]王长勤,许林云,周宏平,等.偏心式林果振动采收机的研制与试验[J].农业工程学报,2012,28(16):10-16.
[16]刘进宝,韩长杰,杨宛章,等.振动式林果采摘机械的设计[J].中国农机化,2014,35(3):41-44,58.
[17]刘进宝,韩长杰,郭辉,等.偏心式林果采摘振动系统[J].农业工程,2013,3(1):68-71.
[18]付威,何荣,曲金丽,等.自走式矮化密植红枣收获机的设计[J].农机化研究,2014,36(4):106-109.
[19]何荣,坎杂,付威,等.矮化密植红枣收获机激振装置设计与运动分析[J].农机化研究,2014,36(2):64-67.
[20]杜小强,倪柯楠,潘珂,等.可调振幅单向拽振式林果采收机构参数优化[J].农业工程学报,2014,30(16):25-32.