带式输送机毕业论文

摘 要

本设计是长距离矿用皮带输送机总体设计。长距离皮带输送机可实现在长距离运输巷道内连续的、大运量的运输，减少能源损耗，节约成本，同时提高生产效率。

在设计中首先根据运输巷道的布置图提出并确定设计方案。其次根据原始参数进行皮带输送机总体的设计：确定带宽；计算输送机总圆周驱动力；计算输送机各点的张力并确定圆周驱动力的分配；电动机装机功率的计算及确定电动机布置方案；输送机的拉紧力及拉紧行程的计算。最后对主要传动部件进行设计：减速器的设计计算及托辊的校核。

本设计主要应用于运输巷道，主要的特点为长距离、大运量。解决了在长距离的情况下输送机多点驱动的问题，以及长距离皮带拉紧的问题。 关键词：长距离输送机；张力计算；减速器设计；

I

Abstract

This design is the long-distance belt conveyor for mine design. Through the conveyor belt to achieve the overall design of roadway in the long-distance transport continuous, large capacity of transport, reducing energy consumption, saving costs while increasing productivity.

First of all, in the design layout of the roadway under the proposed transport and determine the design. Second, according to the original parameters of the overall design of belt conveyor: identification bandwidth; calculated the total circumference of conveyor drive; calculate the points of tension conveyor and determine the circumference of the driving force distribution; motor installed power of calculation and determine the electrical layout of the program; delivery Machine tension force and tension calculation trip. Finally, the design of the main transmission components: speed reducer design calculations and check idlers.

This design is mainly used in the transport tunnel, the main features of the long-distance, large capacity. Solved in the case of long distance multi-point drive conveyor, as well as long-distance belt tensioner problem.

Keywords: Long distance conveyor;tension calculation;reducer design

II

目 录

摘 要 ..................................................................................................................... I Abstract ................................................................................................................ II

第1章 绪论 ........................................................................................................ 1

1.1 国内外带式输送机的发展现状 ........................................................... 1 1.2 带式输送机的分类 ............................................................................... 2 1.3 选题的目的、意义和本文主要的研究内容........................................ 3 1.4 设计目标及原始参数 ........................................................................... 4 第2章 输送机总体结构设计计算 .................................................................... 5

2.1 输送机总体方案确定 ........................................................................... 5 2.2 输送机的基本功能参数 ....................................................................... 6

2.2.1 输送带的宽度及校核 ................................................................ 6 2.2.2 输送带层数的计算 .................................................................... 8 2.2.3 输送带强度的校核 .................................................................... 9 2.2.4 输送带最大的物料横截面积 .................................................. 11 2.2.5 总圆周驱动力计算 .................................................................. 12 2.3 输送带张力计算 ................................................................................. 17 2.3.1 输送带允许最大的下垂度计算最小张力 ............................... 17 2.3.2 输送带不打滑条件 .................................................................. 18 2.3.3 各种驱动力分配情况下各点张力计算................................... 20 2.4 电动机功率计算及布置方案 ............................................................. 24 2.5 液压拉紧装置的原件选择和计算 ..................................................... 25

2.5.1 拉紧力和拉紧行程的计算 ...................................................... 25 2.5.2 拉紧行程的确定 ...................................................................... 25 第3章 主要传动部件设计 .............................................................................. 27

3.1 减速器设计 ......................................................................................... 27

3.1.1 传动比的分配和传动效率的选择 .......................................... 27 3.1.2 传动装置的运动和动力参数计算 .......................................... 28

III

3.1.3 齿轮传动设计 .......................................................................... 30 3.1.4 轴的设计 .................................................................................. 40 3.1.5 键的选择和校核 ...................................................................... 50 3.1.6 滚动轴承的选择与校核 .......................................................... 50 3.2 托辊的校核 ......................................................................................... 52

3.2.1 校核辊子载荷 .......................................................................... 53 3.2.2 托辊的额定负荷和最大转速 .................................................. 54 3.3 其它设备的选型 ................................................................................. 55

3.3.1 滚筒的选择 .............................................................................. 55 3.3.2 导料槽及清扫器选型 .............................................................. 56 3.3.3 制动及逆止装置 ...................................................................... 56 3.3.4 保护设备与其他辅助设备选型 .............................................. 57

第4章 经济与技术分析 .................................................................................. 58 结 论 .................................................................................................................. 59 致 谢 .................................................................................................................. 60 参考文献 .............................................................................................................. 61

IV

CONTENTS

Abstract(Chinese) ............................................................... 错误！未定义书签。 Abstract ............................................................................... 错误！未定义书签。

Chapter 1 Introduction ..................................................................................... 1

1.1 Development of belt conveyor at home and abroad .............................. 1 1.2 Classification of belt conveyor .............................................................. 2 1.3 The purpose of topics, significance and content of this major research 3 1.4 Design objectives and the original parameters ...................................... 4 Chapter 2 Conveyor demonstrate the overall program ................................. 5 Chapter 3 Conveyor design and calculation of the overall structure ........... 7

3.1 The parameters of the basic functions of conveyor ............................... 7

3.1.1 The width of conveyor belt and check........................................ 7 3.1.2 Calculation of belt layers ............................................................ 9 3.1.3 Check of belt strength ............................................................... 10 3.1.4 The largest cross section area of conveyor belt material .......... 12 3.1.5 Calculation of the total circle drive .......................................... 13 3.2 Calculation of belt tension ................................................................... 18 3.2.1 Conveyor belt to allow the largest minimum tension sag calculation ............................................................................................................ 18

3.2.2 Conveyor belt does not slip conditions .................................... 19 3.2.3 Distribution of the various drivers points under tension

calculation ............................................................................................................ 21

3.3 Motor power calculation and Layout .................................................. 25 3.4 Hydraulic tensioning device of the original selection and calculation 26 3.4.1 Tension force and tension calculation of travel ........................ 26 3.4.2 Determination of tension trip ................................................... 26

Chapter 4 Design of the main transmission parts ........................................ 28

4.1 Reducer design .................................................................................... 28

V

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