机械设计毕业设计球绞轴承综合试验机设计.docx

机械设计毕业设计球绞轴承综合试验机设计.docx

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机械设计毕业设计球绞轴承综合试验机设计

摘要

本文介绍了球铰轴承试验机研制的背景和意义,通过分析关节轴承的结构、运动原理、失效形式,探讨了试验机的主要技术参数、结构、系统组成及控制方案等。

采用液压缸控制技术模拟加载载荷，采用千分表对关节轴承各种试验参数进行测量。

确定了方案后进行了相关的参数计算。

轴的设计计算，平键的选择于校核，液压缸的计算与选择等

绘制了机械结构图纸，液压原理图、机架结构图以及夹具零件图等。

关键词：

球绞轴承测试机游隙刚度寿命

Abstract

Thisarticledescribesthehingeballbearingtestingmachinedevelopedbythebackgroundandsignificance,byanalyzingthestructureofjointbearing,movementprinciples,failuremodesofthetestingmachinemaintechnicalparameters,structure,systemcomponentsandcontrolprograms.Hydrauliccylindercontroltechnologytosimulateloadloadbearingjointsusingmicrometertomeasurethevarioustestparameters.

Aftertheprogramidentifiedtherelevantparametercalculation.Shaftdesigncalculation,thechoiceofflatkeysincheck,thecalculationofhydrauliccylindersandselection,andsoall.

Drawthemechanicalstructuredrawings,hydraulicschematics,rackandclampspartsdiagrammaps,andsoall.

Keywords:

balltwisterbearingtestingmachineClearancestiffnessLifespan

1.1.2国内外打包机的主要研究成果....................................................1

1.1.3我国引进线材打包机现状............................................................5

1.1.4打包机的发展趋势........................................................................6

1.1.5PCH-4KNA型打捆机备件的国产化...............................................7

1.2当前国内外打包机存在的问题..........................................................10

1.3小结......................................................................................................11

2.1打包机的基本原理..............................................................................12

2.2打包头功能及其主要性能.................................................................12

2.2.1功能..............................................................................................12

2.2.2主要技术性能..............................................................................12

2.3打包结构.............................................................................................13

2.4打包动作.............................................................................................15

2.5打包机在自动方式下操作注意事项.................................................16

2.6新型打包头KNB的结构特点..............................................................16

2.6.1扭结机构......................................................................................16

2.6.2剪切机构......................................................................................18

2.6.3导向机构......................................................................................18

2.7新型打包头KNB的维护要点..............................................................19

2.7.1KNB的气动和液压系统的工作介质要求...................................19

2.7.2各机构的维护方法......................................................................19

2.8小结.....................................................................................................19

3.1.1特性要求......................................................................................20

3.1.2性能指标..................................................................................20

3.2液压系统设计分析..........................................................................20

3.3液压系统设计要点..........................................................................25

3.4液压原理及分析说明......................................................................26

3.4.1液压原理图..............................................................................26

3.4.2分析说明..................................................................................26

3.5小结..................................................................................................28

第4章扭结机构中各参数的确定....................................................................29

4.1液压马达的确定..............................................................................29

4.2齿轮的设计计算..............................................................................29

4.2.1扭结轮淬火，中间大齿轮正火，驱动轮调质.......................29

4.2.2驱动轮分度圆直径..................................................................30

4.2.3确定齿轮的尺寸......................................................................32

4.2.4校核齿根弯曲疲劳强度并确定最终的齿轮尺寸..................32

4.3轴设计计算及轴承和键的选择.......................................................34

4.3.1选材料，轴承润滑方式，密封方式......................................34

4.3.2结构设计..................................................................................34

4.4联轴器及夹紧装置的选择...............................................................36

4.4.1联轴器的选择..........................................................................36

4.4.2夹紧装置的选择......................................................................36

4.5小结.....................................................................................................36

附录3...................................................................................................................61

第1章绪论