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时间:2018-11-04
《机械原理课程设计--棒料输送线布料装置》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、哈尔滨工业大学课程设计说明书HarbinInstituteofTechnology课程设计说明书课程名称:机械原理课程设计设计题目:棒料输送线布料装置(方案9)院系:英才学院班级:1136005班设计者:高劲军学号:6110810529指导教师:张锋设计时间:2013.07.01-2013.07.05哈尔滨工业大学182哈尔滨工业大学课程设计说明书目录机械原理课程设计任务书························································11.题目要求·············································
2、······················22.题目解答··································································22.1工艺方法分析······························································22.2运动功能分析及运动功能系统图··············································32.3系统运动方案拟定·····················································
3、·····62.4系统运动方案设计·························································102.4.1传送带部分设计··························································102.4.2两轴滑移齿轮设计························································102.4.3圆锥齿轮以及运动分支减速部分设计········································122.4.4传送带带轮设计··
4、························································122.4.5料斗口送料装置设计······················································132.5运动方案执行构件的运动时序分析···········································142.5.1执行机构1传送带的运动时序分析·········································14182哈尔滨工业大学课程设计说明书2.5.2执行机构2、3、4的运动时序分析····
5、·····································142.5.3转向示意图······························································162.5.4经过设计后的运动循环图··················································17棒料输送线布料装置(方案9)1.题目要求如图下图1所示棒料输送线布料装置的功能简图。料斗中分别装有直径35mm,长度150mm的钢料和铜料。在输送线上按照图2所示的规律布置棒料。原动机转速为1430rpm,每分钟布置棒料45,75
6、,95块分3档可以调节。182哈尔滨工业大学课程设计说明书功能简图2.题目解答2.1工艺方法分析分析题目和功能简图,使推动输送带上运动的是执行机构1,使钢料下落的是执行构件2,使铜料下落的是执行构件3,使铝料下落的是执行构件4,四个执行构件的运动协调关系如图所示。下图1中T1为执行构件1的工作周期,T2是执行构件2的工作周期,T3是执行构件3的工作周期,T3是执行构件3的动作周期,T4是执行构件4的动作周期。可以看出,执行构件1做连续圆周运动,执行构件2、执行构件3、执行构件4都做间歇往复移动。4个执行构件的工作周期关系为:T1=T2=T3=T4。工作周期T1执行机构运动情况执行构件1
7、运动执行构件2关闭开启执行构件3关闭开启182哈尔滨工业大学课程设计说明书执行构件4关闭开启T1=T2=T3=T4运动循环图2.2运动功能分析及运动功能系统图为保证系统过载时不至于损坏,在电动机和传动系统之间加一个过载保护环节。过载保护运动功能单元可采用带传动实现,这样,该运动功能单元不仅具有过载保护能力,还具有减速功能,如图3所示。其中带传动的传动比。图3过载保护运动功能单元根据前面的分析可知,驱动执行构件1工作的执行机构应该具有运动功能如图
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