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1、卧式钢筋切断机设计摘要:本课题设计建筑上的卧式钢筋切断机的工作原理是:采用电动机经一级三角带传动和二级齿轮传动减速后,带动曲轴旋转,曲轴推动连杆使滑块和动刀片在机座的滑道中作往复直线运动,使活动刀片和固定刀片相错而切断钢筋。根据电机的工作环境选择电动机类型,采用卧式安装,防护式电机,鼠笼式三相异步电动机。选择三级减速,先是一级带减速,再两级齿轮减速。一级带传动,它具有缓冲、吸振、运行平稳、噪声小、合过载保护等优点,并安装张紧轮。两级齿轮减速,齿轮传动可用来传递空间任意两轴间的运动和动力,并具有功率范围大,传动效率高,传动比准确,使用寿命长,工作安全可靠等特点。动力由电动
2、机输出,通过减速系统传动,把动力输入到执行机构。由于传动系统作的是回转运动,而钢筋切断机的执行机构需要的直线往复运动,为了实现这种转换,可以采用曲柄滑块机构,盘行凸轮移动滚子从动件机构,齿轮齿条机构。本课题采用曲柄滑块机构作为本机械的执行机构 。关键词:切断建筑钢筋齿轮曲柄滑块lietypesteelcuttingmachines’designingAbstract:Thisarticleintroducesakindofarchitecturallietypesteelcuttingmachines.Itsoperatingprinciplesare:Ituseele
3、ctricmotorsleveltrianglebelttransmissionandsecondarygeartransmissiontoslowdown.Then,itdrivesthecrankrotate,Thecrankconnectedtoslideblockandmovingbladesintheslipperywaymakethebackandforthstraightlinesport,makesthemovingbladesandthefixedbladeshearandcutsteel.Accordingtotheworkingenvironmen
4、tchoicethetypeofelectricmotors,usinghorizontalinstallation,protectionoftheelectrical,squirrel-cagethree-phaseasynchronousmotor.Optionthreeslowdown,firstlevelbeltslowdown,followedbythesecondarygeardeceleration.Firstlevelwiththeintroductionofautomated,becauseithasabuffer,absorbshockandoper
5、atesmoothly,smallnoise,andcanprotecttheoverloading.Thenintroduceasecondarygeardecelerationslowdown,becausegeartransmissioncanbeusedtotransmitarbitraryspacebetweenthetwoaxismovementandmomentum,andthescopeofpower,transmissionefficienttransmissionaccurately,longusinglife,suchassafeandreliab
6、lecharacter.Poweroutputbyelectricmotorsthroughslowdowntransmissionsystemtoimportpowertotheexecutivebody.Asthesystemmakerotationmovement,Thesteelcuttingmachineneedsthebackandforthstraightlinesport,inordertoachievethistransformation,wecanusecslider-crankinstitutionsorgearandrack.Idecidedto
7、considerrealisticconditionsusingslider-crankastheexecutingmachinery.Keywords:cuttingarchitecturalreinforcingsteeldargearslider-crank目录第1章引言...............................................................................................................................11.1概述