输送带毕业设计

带式输送机设计

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皮带的选择计算，电机容量的选择，滚筒的选择计算，减速器及联轴器的选择，传动轴的选择计算及校核等部件。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。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；皮带校核；电机选用；传动轴

Belt conveyer design

Abstract

This graduation design is about the design of the mine fixed belt conveyer. First on the belt conveyor made simple overview; followed by analysis of the belt conveyor selection principle and the calculation method; then calculated based on these design criteria and selection method in accordance with the given parameters requires selection of design; then on the belt conveyor selection calculation, selection of the motor capacity calculation, selection of roller, reducer and coupling, drive shaft of the selection and calculation of checking components. The ordinary belt conveyor consists of six main parts: transmission device, tail and return device, the middle part of the frame, tensioner and belt. In the design, manufacture and application of belt conveyor, at present our country and the overseas advanced level compared to still have a large gap, the domestic in the design manufacturing conveyor process there are a lot of problems. This belt conveyer design represents the general process of design, and has certain reference value for future design work..

Keywords: belt conveyor; belt checking; motor selection; drive shaft;

目录

1.绪论 (1)

1.1 选题背景 (1)

1.2 国内带式输送机发展情况 (1)

1.3 国外带式输送机发展情况 (2)

1.4 研究内容 (3)

2.整体方案设计 (4)

2.1方案对比 (4)

2.2 减速器选择 (6)

2.3 联轴器的选择 (6)

2.4 液力耦合器的选择 (7)

2.5 布置方式的比较 (8)

3.电机容量的选择计算 (10)

3.1初始设计参数 (10)

3.2初定设计参数 (10)

3.3 驱动力计算 (10)

4.输送带最大张力计算及校核 (14)

4.1 输送带张力计算 (14)

4.2 输送带垂度与强度校核 (15)

4.2.1输送带垂度校核 (16)

4.2.2输送带强度校核 (16)

5.滚筒的选择与计算 (18)

5.1滚筒合力 (19)

5.2 传动滚筒的选择和计算 (19)

5.2.1滚筒直径 (20)

5.2.2滚筒长度 (20)

6.减速器及联轴器的选择 (21)

6.1减速器的选择计算 (21)

6.2联轴器的选择计算 (21)

7.轴的设计计算和校核及键的校核 (23)

7.1轴的尺寸设计 (23)

7.1.1输入轴转矩 (23)

7.1.2确定轴的最小直径 (23)

7.1.3 轴的结构设计 (23)

7.2轴上力的计算 (25)

7.2.1求轴承的支反力 (25)

7.2.2求B点处弯矩 (26)

7.2.3按弯扭合成强度校核轴的强度 (28)

7.3 传动轴轴承校核 (28)

7.3.1由前知轴承支反力 (28)

7.3.2轴承的当量动载荷 (29)

7.3.3计算轴承寿命 (29)

7.4传动轴上键的强度校核 (29)

8.拉紧装置的选择及计算 (31)

9.清扫装置 (32)

10.经济性分析 (35)

结论 (37)

致谢 (38)

参考文献 (39)