4900kn冷剪机的设计毕业论文

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1、4900KN冷剪机设计摘　要冷剪机是在冶金工业中经常用来对轧件进行切头、切尾或者切定尺的机械设备。作为剪切机械中的一种，冷剪机在冶金、航空、国防工业，以及印刷等轻工业均有广泛的应用。早期的冷剪机由于结构比较笨重而且没有快速换刀装置，导致生产效率比较低，产品的质量也不高。为此，我们设计了结构更为紧凑的曲柄连杆上切式斜刃剪切机。该剪切机主要包括剪切部分及传动部分。剪切部分采用上切式斜刃刀片的剪切方式，大大降低了剪切力。传动部分采用电机通过联轴器带动减速器代替原来的带传动，避免了由于弹性滑动带来的功率损失，采用圆盘式摩擦离合器控制减速器与开式齿轮之间的离合，通过曲轴带动连杆的上下运

2、动来完成剪切动作。该机构的特点在于用大齿轮代替飞轮，联轴器传动代替带传动。该剪切机的生产效率比较高且生产成本较低，适用于中小型棒材生产线或是无缝钢管管坯的剪切。关键词：圆盘式摩擦离合器，曲柄连杆，斜刀刃，剪切机，联轴器传动TheDesignof4900KNColdShearAbstractColdshearmachinesareusuallyusedtocometocarryonthemachineequipmentsthatslicesthehead,slicesthetailandtosliceappointeddimensionofthepieceintherollin

3、gmetallurgyindustry.Theconductandactionsshearstoslicethemachineinofakindof,coldshearthemachineinthemetallurgy,aviation,industryofdefenses,andprinttheetc.,thelightindustryallhastheextensiveapplication.Earlierperiodofcoldshearthemachinebecausethestructureismorebulkyanddidnotchangetheknifethed

4、evicequickly,causeproducetheefficiencylower,thequantityoftheproductisalsonothigh.Forthis,wedesignedthestructuretoevenconnectthepoleforthecrankofthetightlypackeduptheinclinedbladeofslicetypeshearstoslicethemachine.Thissheartoslicethemachinetomainlyincludetosheartoslicethepartandspreadtomovet

5、hepart.Sheartoslicethepartadoptionuptheinclinedbladerazorbladeofslicetypeshearstoslicetheway,loweringtosheartoslicethedintconsumedly.Spreadtomovethepartadoptionelectricalengineeringtoarousetodeceleratethemachinetoreplacethroughtheadaptercouplingtotaketospreadtomoveoriginally,avoidbecauseoft

6、hepowerlossthattheflexibilityglidebring,adoptofadishtypefrictionclutchcontroldecelerationmachineandtheopentypewheelgeartoleavetomatch,arousetoconnectthetopandbottomofthepolethroughthesongstalksporttocompletetosheartoslicetheaction.Thecharacteristicsofthatorganizationliesintoreplacetheflywhe

7、elwiththebigwheelgear,theadaptercouplingspreadstomovetoreplacetotaketospreadtomove.Shouldsheartheproductionefficiencyofslicethemachinehigherandtheproductioncostislower,beingapplicabletothemediumsmallscaledandgoodmaterialproductionlineornoslotsteelpipebil