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优秀论文 审核通过 未经允许 切勿外传

摘要

本次毕业设计是关于矿用固定式带式输送机的设计。首先对胶带输送机作了简单的概述；接着分析了带式输送机的选型原则及计算方法；然后根据这些设计准则与计算选型方法按照给定参数要求进行选型设计；接着对所选择的输送机各主要零部件进行了校核。普通型带式输送机由六个主要部件组成：传动装置，机尾和导回装置，中部机架，拉紧装置以及胶带。最后简单的说明了输送机的安装与维护。目前，胶带输送机正朝着长距离，高速度，低摩擦的方向发展，近年来出现的气垫式胶带输送机就是其中的一个。在胶带输送机的设计、制造以及应用方面,目前我国与国外先进水平相比仍有较大差距,国内在设计制造带式输送机过程中存在着很多不足。

本次带式输送机设计代表了设计的一般过程, 对今后的选型设计工作有一定的参考价值。 关键词：带式输送机；选型设计；主要部件

Abstract

The design is a graduation project about the belt conveyor used in coal mine. At first, it is introduction about the belt conveyor. Next, it is the principles about choose component parts of belt conveyor. After that the belt conveyor abase on the principle is designed. Then, it is checking computations about main component parts. The ordinary belt conveyor consists of six main parts: Drive Unit, Jib or Delivery End, Tail Ender Return End, Intermediate Structure, Loop Take-Up and Belt. At last, it is explanation about fix and safeguard of the belt conveyor. Today, long distance, is the direction of belt conveyor’s development. Air cushion belt conveyor is one of them. At present, we still fall far short of abroad advanced technology in design, manufacture and using. There are a lot of wastes in the design of belt conveyor. Keyword: belt conveyor; Lectotype Design;main parts

目录

摘要 ..................................................................................................................................... 1 Abstract .............................................................................................................................. 1 1绪论 .................................................................................................................................. 1 2带式输送机概述 .............................................................................................................. 2

2.1 带式输送机的应用 ............................................................................................. 2 2.2 带式输送机的分类 ............................................................................................. 2 2.3 各种带式输送机的特点 ..................................................................................... 3 2.4 带式输送机的发展状况 ..................................................................................... 4 2.5 带式输送机的工作原理 ..................................................................................... 5 2.6 带式输送机的结构和布置形式 ......................................................................... 6

2.6.1 带式输送机的结构 ................................................................................. 6

2.6.2 布置方式 ................................................................................................. 7

3 带式输送机的设计计算 ................................................................................................. 9

3.1 已知原始数据及工作条件 ................................................................................. 9 3.2 计算步骤 ........................................................................................................... 10

3.2.1 带宽的确定: ......................................................................................... 10 3.2.2输送带宽度的核算 ................................................................................ 13 3.3 圆周驱动力 ....................................................................................................... 13

3.3.1 计算公式 ............................................................................................... 13 3.3.2 主要阻力计算 ....................................................................................... 14 3.3.3 主要特种阻力计算 ............................................................................... 16 3.3.4 附加特种阻力计算 ............................................................................... 17 3.3.5 倾斜阻力计算 ....................................................................................... 18 3.4传动功率计算 .................................................................................................... 18

3.4.1 传动轴功率（）计算 ........................................................................... 18 3.4.2 电动机功率计算 ................................................................................... 18 3.5 输送带张力计算 ............................................................................................... 19

3.5.1 输送带不打滑条件校核 ....................................................................... 20 3.5.2 输送带下垂度校核 ............................................................................... 21 3.5.3 各特性点张力计算 ............................................................................... 21 3.6 传动滚筒、改向滚筒合张力计算 ................................................................... 24

3.6.1 改向滚筒合张力计算 ........................................................................... 24 3.6.2 传动滚筒合张力计算 ........................................................................... 24 3.7 传动滚筒最大扭矩计算 ................................................................................... 25 3.8 拉紧力计算 ....................................................................................................... 25 3.9绳芯输送带强度校核计算 ................................................................................ 25