辊式破碎机主传动系统设计 全套附图.zip

辊式破碎机主传动系统设计

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辊式破碎机主传动系统设计

摘要

辊式破碎机主传动系统主要由两级圆锥-圆柱齿轮减速器和第三级的内齿圆柱齿轮传动机构组成，本系统具有原理简单、容易实现、工作可靠的优点。其减速器为一般减速机构，具有通用性。由于辊式破碎机主传动系统设计的主要部分是减速器，因此本次设计将通过和一般减速器的比较，进行改进和优化，使之达到一个很好的设计要求。本设计主要侧重于减速器的设计。
首先，本次设计将在总体方面进行了设计，确立了传动方案，分配了各级的传动比，并阐述了选择这样一个传动方案的理由。
其次，本次设计在总体设计的宏观基础上，对各级传动部件逐个分析设计，分别是圆锥齿轮传动、斜齿圆柱齿轮传动和内齿圆柱齿轮传动。
再次，本次设计对减速器的高速轴、中间轴、低速轴分别详细进行了设计。然后确立了减速器的大致框架，绘制了减速器装配图和若干零件图。
最后，本次设计选取了一到两个特殊零件进行了校核，保证了系统的安全和稳定运行。

关键词：辊式，传动，减速器，校核

Roll Crusher Main Drive System Design

Abstract

The roller crusher main drive system is composed of the cone - cylinder gear reducer and the third-class gear transmission within institutions .The system is simple in the principle, easy to realize and reliable at work. The reducer is the general slowdown framework so it has inter-operable. As the design of speed reducer is the main part of  the roller crusher main drive system, the design will be through comparison and optimization improvements for some general reducer to meet a good design requirements.The design focuses mainly on the design of speed reducer.
Firstly, this design was carried out in the overall design, established a transmission program, allotted the transmission ratio at all levels and described the reasons for such a transmission choice.
Secondly, the design was based on the macro-design , analysed and designed all transmission components which were named the cone gears drive, the helical gears transmission and the gears drive within institutions.
Third,  the high-speed reducer shaft, the intermediate shaft and the low speed shaft had been designed respectively in detail. Then a general framework of the reducer were establish and the reducer assembly drawings and a number of parts drawing were mapped.
Finally, the 1-2 special parts selected conducted a check to ensure the security and stability of  the system when to be running.

Keywords: roller, transmission, gear reducer, check

目录

1  绪论.............................................................1
1.1  本次设计的背景及目........................................1
1.2  本次设计的主要内容........................................1
1.3  本次设计的步骤............................................2
1.4  本次设计的具体要求........................................2
2  传动系统总体设计.................................................3
2.1  传动方案的拟定及说明......................................3
2.2  总体布置简图..............................................3
2.3  总体设计..................................................4
2.3.1  电动机的选择.......................................4
2.3.2  传动装置的总传动比及其分...........................4
2.3.3  传动装置的运动和动力参数计算.......................5
3  传动件设计计算...................................................6
3.1  直齿圆锥齿轮传动的设计....................................6
3.1.1  设定齿轮类型、精度等级、材料及齿数.................6
3.1.2  按齿面接触强度设计.................................6
3.1.3  按齿根弯曲强度设计.................................8
3.1.4  几何尺寸计算.......................................9
3.2  斜齿圆柱齿轮的设计.......................................10
3.2.1  选定齿轮类型、精度等级、材料及齿数................10
3.2.2  按齿面接触强度设计................................11
3.2.3  按齿根弯曲强度设计................................13
3.2.4  几何尺寸计算......................................14
3.3  内齿圆柱齿轮的设计.......................................15
3.3.1  设定齿轮类型、精度等级、材料及齿数................15 
3.3.2  按齿面接触强度设计................................16
3.3.3  按齿根弯曲强度设计................................17
3.3.4  几何尺寸计算......................................19
3.3.5  传动比校核........................................20
4  轴的设计........................................................20
4.1  轴的材料选择和最小直径估算...............................20
4.2  轴的结构设计.............................................21
4.2.1  高速轴的设计......................................21
4.2.2  中间轴结构设计....................................21
4.2.3  低速轴的结构设计..................................22
5  轴的校核........................................................23
5.1  轴的力学模型的建立........................................23
5.1.1 轴上力的作用点位置和支撑跨距的确定..................23
5.1.2 轴上力的作用点位置和支撑跨距的确定..................23
5.2  计算......................................................24
5.2.1 计算轴上的作用力....................................24
5.2.2  计算支反力.........................................25
5.2.3  绘制转矩、弯矩图...................................26
5.2.4  弯扭合成强度校核...................................27
5.2.5  安全系数法疲劳强度校核.............................27
6  键的选择与校核..................................................29
7  滚动轴承的选择..................................................29
8  联轴器的选择....................................................30
8.1  载荷计算..................................................30
8.2  载荷计算..................................................30
9  密封与润滑以及箱体附件的设计....................................31
结论...............................................................32
致谢...............................................................33
参考文献...........................................................34