剪板机设计论文.doc

齐齐哈尔大学毕业设计（论文）用纸I摘要该设计的对称传动剪板机，其冲剪力为10吨，滑块的行程为22mm，每分钟剪切30次。由电动机提供动力，经过一级带传动和一级齿轮传动减速。设计中采用的执行机构为对心曲柄滑块机构，这一机构将剪板机传动系统的旋转运动转变为滑块的往复直线运动，实现对板料的剪切。曲柄滑块机构具有结构简单、加工容易、维修方便、经济实用的优点，在机械设备中应用广泛。本设计中，通过对平面曲柄滑块机构的数学建模，用TurborC编程，输入曲柄滑块机构的机构参数和运功参数，实现对整个机构运动过程的仿真。关键词TurborC运动仿真曲柄滑块剪板机齐齐哈尔大学毕业设计（论文）用纸IIAbstractThedesignofsymmetrictransmissionshears,shearto10tons,theitineraryfortheslider22mmper30minutesshear.PoweredbythemotorthroughabeltdriveandaslowdownGear.Designoftheimplementationagenciesrightmindcrankslider,Thiswillshearstransmissionrotationsliderintothereciprocatinglinearmotion,therealizationoftherightofsheetmetalshear.Cranksliderissimpleinstructure,easyprocessing,easytomaintainandrepair,economicandpracticaladvantagesinmachinery,equipmentwidelyused.Thedesign,rightthroughtheplanecrankslidermathematicalmodeling,TurborCprogramming,inputslidercrankagenciesthatsuchremarksparametersandtheparametersofthewholemovementofthesimulationprocess.KeywordsTurborCMotionsimulationCrankandslideblockCuttingmachine齐齐哈尔大学毕业设计（论文）用纸III目录摘要........................................................IAbstract...................................................II第1章绪论................................................1第2章方案论证............................................22.1液压传动方案..................................22.2机械传动方案..................................32.2.1凸轮机构方案...................................32.2.2曲柄滑块机构方案...............................4第3章总体传动方案........................................5第4章电动机的选择........................................64.1电动机类型和结构形式的选择.......................64.2电动机功率的选择.................................64.3计算传动装置的运动和动力参数....................84.3.1计算传动装置的合理传动比.......................84.3.2计算运动和动力参数.............................8第5章带传动的设计及计算.................................105.1确定计算功率....................................105.2选择带型........................................105.3确定小带轮的基准直径............................105.3.1初选小带轮的基准直径..........................105.3.2验算带的速度..................................115.3.3计算从动轮的基准直径..........................115.4确定中心距a和带轮的基准长度....................115.5验算主动轮上的包角..............................125.6确定带的根数....................................135.7确定带的预紧力..................................135.8计算带传动作用在轴上压轴力......................145.9带轮结构的设计..................................145.9.1小带轮的结构设计..............................145.9.2大带轮的结构设计..............................17齐齐哈尔大学毕业设计（论文）用纸IV第6章轴的设计...........................................196.1主动轴设计......................................196.1.1轴的材料......................................196.1.2轴径的最小许用值..............................206.1.3确定轴上的零件的装配方案......................206.1.4轴上的零件定位................................206.1.5轴各段直径和长度的确定........................206.1.6绘制主轴上零件的装配图及轴的结构图...........206.1.7轴的强度校核计算..............................216.2从动轴的设计....................................236.2.1材料选择......................................236.2.2轴径的最小许用值..............................246.2.3确定轴上零件的装配方案........................246.2.4绘制从动轴上零件的装配图及轴的结构图..........24第7章齿轮设计...........................................257.1选定齿轮类型、精度等级、材料及齿数..............257.1.1齿轮类型的选择................................257.1.2齿轮材料的选择................................257.1.3选取精度等级..................................257.1.4选择齿数......................................257.2按齿面接触强度设计..............................257.2.1确定公式内的各个计算数值......................267.2.2计算..........................................277.3按齿根弯曲强度设计..............................287.3.1确定公式内各计算数值..........................287.3.2设计计算......................................297.4几何尺寸计算....................................307.4.1计算分度圆直径................................307.4.2计算中心距....................................307.4.3计算齿轮宽度..................................307.5验算............................................317.6结构设计及绘制齿轮零件图........................317.6.1对小齿轮的结构设计............................317.6.2对大齿轮的机构设计............................32第8章曲柄滑块机构设计...................................348.1材料的选择......................................348.2确定曲柄滑块杆件长度............................348.3结构设计........................................35