毕业设计任务书学生姓名：任务下达日期：年月日设计开题日期：年月日设计开始日期：年月日中期检查日期：年月日设计完成日期：年月日一、设计题目：掘进机行走机构的结构设计二、设计的主要内容：说明书：1、中英文摘要、中英文目录；2、掘进机行走部方案比较；3、掘进机行走部的总体结构设计4、.减速器的结构设计与计算；5、相关零部件选择及校核。

图纸：1、行走部总装配图A0一张；2、行走部减速器A0一张；3、主要零部件图（手绘图1张）。

四、设计目标：设计参数：机重40000kg,行走速度6.6m/min,行走部接地长度440cm,行走部接地宽度59.5cm.综合运用知识，多种方案比较，确定方案，满足设计参数要求。

指导教师：院（系）主管领导：年月日开题报告摘要掘进机是一种较先进的井下掘进设备。

行走机构由履带、支重轮、托链轮、引导轮、驱动轮、张紧装置、行星齿轮减速器、液压马达和履带架等部分组成。

按照掘进机行走部及行走减速器的工作原理进行初步设计。

在此基础上通过对此题目的分析以及对一些相关书籍和文献的查阅，进一步研究掘进机行走部的设计及行走减速器的设计原理。

设计重点应在于行走部的履带行走机构设计及行走减速器的行星传动设计。

首先阐述行走部的履带行走机构的一般结构，简易的叙述总体方案设计，其次对减速器进行细致的设计，包括行星减速器的选择、计算、校核。

通过研究掘进机行走部及行走减速器的基本原理，获得了大量有关设计掘进机行走部及行走减速器的要领。

关键词：掘进机；行走机构；减速器AbstractBoring machine is a more advanced underground boring equipment. Travel agencies from the track, supporting wheels, asked sprocket, guide wheel, driving wheel, tensioning device, planetary gear reducer, hydraulic motors and track aircraft components.In accordance with the driving and walking to walking part reducer preliminary design works. Based on this analysis and through this topic a number of books and documents on access, further driving to walking part of the design and running gear reducer design principles. Design should focus on running the Department of Design and crawler running gear reducer planetary transmission design. First, the Department set to walk the general structure of crawler, a simple description of the overall program design, followed by a careful design of the reducer, planetary reducer selection, calculation and check.Department of walking through the tunnel boring machine and the basic principles of running reducer to obtain a lot of walking part of the design driving and walking reducer essentials.Key words：Boring machine; Travel agencies; Reducer目录摘要 (IX)Abstract............................................................................................................. I I 第1章绪论. (1)1.1 问题的提出 (1)1.2 国内外发展状况 (1)1.3 悬臂式掘进机行走机构的发展特点 (3)1.4 悬臂式掘进机行走机构的发展趋势 (4)第2章方案论证 (5)2.1 驱动方式的分析 (6)2.1.1 液压驱动 (6)2.1.2 电驱动 (6)2.2 传动方式分析与选择 (6)第3章掘进机总体结构设计 (9)3.1 行走部的工作要求 (9)3.2 掘进机行走部的组成及行走原理 (9)3.2.1 掘进机行走部的组成 (9)3.2.2 掘进机的行走原理 (10)3.3 行走机构的型式选择 (11)3.3.1 行走型式的选择 (11)3.4 行走机构的设计计算 (11)3.4.1 履带节距的计算 (11)3.4.2 履带牵引力的计算 (12)3.5 行走机构各种阻力计算 (13)3.6 驱动轮各主要参数的确定 (14)3.7 行走机构液压马达的选择 (15)3.8 重轮的设计计算 (17)3.9 张紧装置 (18)第4章行走减速器的设计计算 (19)4.1 行走减速器方案的确定 (19)4.1.1 输出轴的转速计算 (19)4.1.2 传动比的分配 (20)4.1.3 圆柱齿轮传动部分的计算 (21)4.2 一级圆柱齿轮传动圆柱齿轮的设计计算 (22)4.2.1 选定齿轮类型、精度等级、材料及齿数 (22)4.2.2 按齿面强度设计 (23)4.2.3 根据弯曲强度设计 (26)4.2.4 几何尺寸计算 (28)4.3 行星齿轮传动的设计计算说明 (29)4.3.1 行星齿轮传动的概述 (29)4.3.2 行星齿轮传动方式的选择 (29)4.3.3 传动比的分配 (30)4.3.4 高速级计算 (31)4.3.5 低速级计算 (34)4.4 轴的设计计算 (38)4.4.1 轴的概述 (38)4.4.2 轴材料的选择 (38)4.4.3 各轴的计算 (39)4.4.4 轴的校核 (41)4.5 轴承的选择 (42)4.5.1 滚动轴承类型的选择 (42)4.5.2 润滑与密封 (43)4.5.3 滚动轴承的校核计算 (44)4.6 键的选用 (45)4.6.1 键的选择 (45)4.6.2 键的校核 (46)结论 (48)致谢 (49)参考文献 (50)CONTENTSAbstract........................................................................... (I)Chapter1 Introduction (1)1.1 Overview and issues raised (1)1.2 Domestic and international development (1)1.3 Roadheader walking characteri stics of the development agencie (3)1.4 Roadheader trend walking mechanism (4)Chapter2 Demonstration (5)2.1 Analysis of driving mode (6)2.1.1 Hydraulic drive (6)2.1.2 Electric drive (6)2.2 Transmission mode and select (6)Chapter3 The overall structural design of tunnel boring machine (9)3.1 The department requirements for the workto walk…………………… .93.2 Composition of the department of boring machine running …………..and walking principle (9)3.2.1 Department of the composition of the boring machine running .93.2.2 Principles to walk TBM (10)3.3 Type Selection travel agencies (11)3.3.1 Choose the type of walking (11)3.4 Design and calculation of travel agencies (11)3.4.1 Calculation of track pitch (11)3.4.2 Calculation of traction track (12)3.5 Calculation of travel organizations of various resistanc........ .. (13)3.6 Determination of main parameters driving wheel………………. .143.7 The choice of running gear hydraulic mo tor (15)3.8 Design and calculation of roller (17)3.9 Tensioning device (18)Chapter4 Design and Calculation of walking speed reducer (19)4.1 Program to determine walking speed reduce r (19)4.1.1 Calculation of the output shaft rotational speed……… ..194.1.3 Calculation of gear transmission part (21)4.2 A cylindrical gear design and calculation (22)4.2.1 The sele allocation of transmission ratiocted gear type, precisiongrade, material and number of teeth (22)4.2.2 Design of according to tooth surface strength (23)4.2.3 According to the design bending strength of (26)4.2.4 Calculation of the geometric dimensions of (28)4.3 Calculation of planetary gear design description (29)4.3.1 Overview planetary gear (29)4.3.2 Planetary gear transmission t o the choice.................... . (29)4.3.3 The allocation of transmission ratio (30)4.3.4 Calculation of high-level (31)4.3.5 Calculation of low-level (34)4.4 Shaft design calcula tion (38)4.4.1 Overview of shaft (38)4.4.2 Shaft material selection ........................................ . (38)4.4.3 The calculation of the shaft (39)4.4.4 Check of shaft (41)4.5 Bearing selection (42)4.5.1 Bearing type selection ....................................... .. (42)4.5.2 Lubrication engineering....................................... .. (43)4.5.3 Check calculation of beari ng................................ (44)4.6 Selection of key (45)4.6.1 Key selection (45)4.6.2 Checking key (46)Conclusion (48)Thanks (49)References (50)第1章绪论1.1 问题的提出掘进机采用履带行走机构，它支撑机器的自重和牵引转载机行走，当掘进作业时，它承受切割机构的反力、倾覆力矩和动载荷。