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摘要摘要双通道直线振动筛是目前我国煤炭企业使用率较高的一种振动筛。双通道直线振动筛也广泛应用于冶金、煤炭、化工、耐火、水泥、陶瓷、建材、粮食、矿山、建材、电力等各行各业中，用于对各种物料不同程度的分级要求作业。双通道直线振动筛采用双电机带动两根轴，两根轴做反向同步回转，从而使偏心块也做反向同步回转，产生离心力，使筛箱产生振动。筛箱振动使物料产生向前和向下两个方向的运动，从而使物料在筛面上便沿着与这个方向成一定角度的抛挣和筛分。主要通过对短轴，偏心块，筛框的设计，对轴承的选取和校核，对轴的校核等来完成直线振动筛的设计。传统的振动筛的设计，筛子筛框、横梁的等尺寸过大，整机重量过大，所需激振力及相应激振器的尺寸也过大，会带来零部件易损坏，整机的可靠性和寿命降低等许多问题。因此研究双通道的结构，可较好地解决振动筛大型化所带来的问题。关键词偏心块；轴；激振器；双通道直线振动筛江南大学学士AbstractVibratingstraightlybolterisakindofoscillationbolterthatcurrentourcountrychoosethecoalplantusageatmost.Vibratethebolterthetooextensiveapplyingstraightlyinthemetallurgy,buildingmaterials,chemicalengineering,refractor,cement,ceramic,food,minemountain,coal,buildingmaterials,electricalpower...etc.everytradeinside,usedfortheoperationofgraduationtodifferthedegreetoeverykindofmaterial.Vibratetheboltertheadoptionstraightlythedipeptideelectricalengineeringarousetwoindogenaxis,twoindogenaxisesmaketheanti-facesthesynchronousturn-over,fromandmakelackofimpartialitythecaketoalsomaketheanti-facesynchronousturnround,thecentrifugalforceofthecreation,makebolterboxoccurrenceoscillation.Thebolterboxoscillationmakematerialgeneratedforwardthesumgetsdowntworunningsofdirection,frombutmaterialisonthebolterfacethenalongthisdirectionthecertainanglethrowsthematerialandbolterbatbatch.Passprimarilytothebrachyaxis,eccentricitycake,thedesignofthecridofbolter,totheselectofthebearingandschoolriboside,cometothedesignthatoverrectilinearvibrateboltertotheaxialschoolribosideisoConventionalvibratingscreen,sievescreenframe,beamsandotheroversized,heavyweightmachine,therequiredexcitationforceandthecorrespondingsizeoftheexciterisalsotoolarge,fragilepartswillbringthewholemachinereliabilityandlowerlifeexpectancyandmanyotherissues.Therefore,thestructureofdual-channel,shakercansolvetheproblemscausedbylarge-scale.KeywordsEccentricitycakeshaftExciterDual-channellinearvibratingscreen目录III目录摘要..........................................................................................................................I第1章绪论.............................................................................................................11.1概述............................................................................................................11.2典型介绍....................................................................................................11.2.1DSM系列直线振动筛......................................................................11.2.2ZSM系列直线振动筛......................................................................2第2章方案拟订.....................................................................................................22.1传动方式分析...........................................................................................22.1.1非直接传动.....................................................................................22.1.2直接传动.........................................................................................22.2支撑形式与隔振装置分析........................................................................32.3设计方案介绍与选择................................................................................4第3章工作原理分析.............................................................................................6第4章结构简图.....................................................................................................84.1参数的计算程序........................................................................................84.2惯性振动筛参振质量的计算....................................................................84.3计算隔振弹簧刚度....................................................................................84.4所需激振力力幅及质量矩的计算............................................................94.5振动筛传给地基的负荷............................................................................94.5.1静负荷:............................................................................................94.5.2动载荷...........................................................................................104.5.3最大动载荷...................................................................................104.6电动机功率的计算与电机选择..............................................................104.6.1所需电机功率...............................................................................104.7质心的计算和激振器位置的选择..........................................................114.7.1激振器位置的选择.......................................................................114.7.2质心的确定...................................................................................114.8惯性振动筛工艺参数的选择计算..........................................................124.8.1筛面倾角.......................................................................................124.8.2振动方向角...............................................................................124.8.3振幅是振动筛...............................................................................124.8.4筛面的振动频率n........................................................................124.8.5物料的运动速度......................................................................