单级直齿圆柱齿轮减速器课程设计说明书

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1、课程设计说明书第16页共16页江苏大学工程图学课程设计单级直齿圆柱齿轮减速器设计说明书专业机械设计制造及其自动化班级学号姓名指导教师答辩日期2013年6月28号课程设计说明书第16页共16页目录第一章绪论一、减速器的简介········································3二、减速器的种类········································3第二章单级直齿圆柱齿轮减速器的工作原理与结构介绍一、减速器的工作原理··························

2、··········5二、减速器的结构介绍····································6三、减速器的拆卸顺序····································9第三章减速器各组成部分分析一、整体描述············································9二、减速装置············································9第四章壳体部分一、底座和箱盖··························

3、················11二、销的定位形式、螺纹连接形式及特殊结构················11三、润滑方式············································11第五章主要零件工作示意图一、箱盖················································12课程设计说明书第16页共16页二、箱体················································12三、大端盖············

4、··································13第六章减速器中的特殊装置一、油面指示器··········································13二、视孔装置············································14三、螺栓连接装置········································14四、清油装置············································14五、齿轮啮合·

5、···········································15第七章小结及改进意见一、小结················································15二、改进意见············································15第一章绪论一、减速器的简介减速器是一种动力传递机构，利用齿轮的速度转换课程设计说明书第16页共16页器，将电机的每分钟回转数（转速）减速到所需要的工作转速。如果以一对齿轮传动为例，减速比=N1/N2

6、=Z2/Z1,其中N1和N2分别表示两啮合齿轮的转速，Z1、Z2分别为两齿轮的齿数，这就是说，减速比等于两齿轮齿数的反比。二、减速器的种类减速器的种类很多。常用的齿轮及蜗杆减速器按其传动及结构特点，大致可分为三类：1.齿轮减速器（图1-2-1）主要有圆柱齿轮减速器、圆锥齿轮减速器和圆锥-圆柱齿轮减速器三种。（1）圆柱齿轮减速器：当传动比在8以下时，可采用单级圆柱齿轮减速器。大于8时，最好选二级以上的减速器。单级减速器的传动比如果过大，则其外廓尺寸将很大。二级和二级以上圆柱齿轮减速器的传动布置形式有展开式、分流式和同

7、轴式等数种。展开式最简单，但由于齿轮两侧的轴承不是对称布置，因而将使载荷沿齿宽分布不均匀，且使两边的轴承受力不等。（2）圆锥齿轮减速器：它用于输入轴和输出轴位置布置成相交的场合。二级和二级以上的圆锥齿轮减速器常由圆锥齿轮传动和圆柱齿轮传动组成，所以有时又称圆锥—圆柱齿轮减速器。因为圆锥齿轮常常是悬臂装在轴端的，为了使它受力小些，常将圆锥面崧，作为，高速极：山手面锥齿轮的精加工比较困难，允许圆周速度又较低，因此圆锥齿轮减速器的应用不如圆柱齿轮减速器广。（b）单级圆柱齿轮减速器（a）圆锥齿轮减速器（c）多级圆柱齿轮减速

8、器课程设计说明书第16页共16页（d）圆锥-圆柱齿轮减速器图1-2-1几种齿轮减速器2.蜗杆减速器（图1-2-2）主要有圆柱蜗杆减速器、圆弧齿轮蜗杆减速器、圆锥蜗杆减速器和蜗杆-齿轮减速器等。（1）蜗杆减速器：主要用于传动比较大(j>10)的场合。通常说蜗杆传动结构紧凑、轮廓尺寸小，这只是对传减速器的传动比较大的蜗杆减速器才是正确的，当传动比并不很大时，此优