:..罿薆莄机械设计课程设计薁设计计算说明书聿羇设计题目:带式输送机的减速器螂莀腿莈学院:纺织与材料学院蒃班级:纺织072蒃姓名:陈真腿学号:0713661059蒄指导教师:杨文堤芅日期:2009-6-26膁目录艿一、二、袅设计任务书····································三、四、蚃传动方案分析··································五、六、羀电机的选择····································七、八、荿传动比分配····································九、十、芆运动及动力参数计算····························十一、十二、莅带传动的设计··································十三、十四、蝿齿轮转动的设计································十五、十六、葿轴的结构设计··································十七、十八、螇轴的强度计算··································十九、二十、袃键的选择及强度计算····························二十一、二十二、螂联轴器的选择·······························二十三、二十四、薈滚动轴承的选择及寿命计算···················二十五、二十六、袄密封件的选择·······························二十七、二十八、薅润滑剂及润滑方式的选择·····················二十九、三十、薁参考文献···································蚈一、设计任务书1、2、芅设计题目:设计一带式输送机制减速器肃已知减速器的输出功率为5Kw,输出转速为140转/分,减速器的工作寿命为12 年双班制工作,工作时有轻微振动,传动简图如图:芀螈蚆螅莃螈肇膂肂袈蒇袄袀羈薄莂虿肈3、4、羅课程设计要求肄应完成:①减速器装配图一张(A2)蚂②零件工作图二张膇③:减速器输出功率Pw为5Kw;输出转速为nw为140转/分;工作时间双班制工作,连续工作时间长;工作寿命12年,较长;工作时有轻微振动,要求减震。芇该工作机有轻微振动,由于V带有缓冲吸振能力,采用V带传动能减小振动带来的影响,并且该工作机属于小功率、载荷变化不大,可以采用V带这种简单的结构,并且价格便宜,标准化程度高,大幅度降低了成本。减速器部分用单级圆柱齿轮减速器。。蚂工作机功率:Pw=5Kw芃工作机转速:nw=140r/min莇传动装置总效率:ηa莅ηa=η1•η22•η3(由课设P6式2-4)蒄由课设书表2-2:羂机械传动和轴承等效率的概略值(P6)蒇取:V带传动效率η1===-1得:薇ηa=膆电动机所需功率:Pd(见课设P6)薃Pd====,蚇根据所需功率在(课设表16-1,P148)中选择具体型号。选择电动机为Y132M-4型薇Y132M-4电动机主要数据如下:.膀传动比分配1、2、膀总传动比蒆===、4、羃各级传动比分配:膃为了使传动系统结构较为紧凑,据P7所述,取V型带传动比=3,则得齿轮的传动比:=3蚅=、各轴的转速计算芈据课设P8式有:肃=480r/、各轴的输入功率的计算蒅取电动机的所需功率Pd为设计功率,则V带传递的功率为:Pd=×=、··m芆各轴功率、转速、转矩列于下表:羄轴名芁功率(Kw)蚀转速(r/min)蚇转矩(N·m)、2、节确定V带型号和带轮直径肀工作情况系数KA:由表13-8(P218)查得
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