DX型钢丝绳芯式带式输送机的设计毕业论文

摘要

煤矿带式输送机从它诞生以来，历经几百年的不断完善及改进，现已进入冶金，煤炭，化工，矿山等各行各业之中。其机构简单，容易操作，输送物料的范围广，输送量大，运距较长，对线路适应性也强，装卸料十分方便，可靠性高，营运费低廉，基建投资省，耗能低，效率高，维修费少等优点。

根据初始数据和相应计算，本次选型设计为DX型钢丝绳芯式带式输送机，其采用机头双滚筒驱动，在保证滚筒不发生打滑的前提下，来完成传递较大的功率，使各部分正常运行，降低输送带的张力和提高胶带输送机的使用寿命。本次选型设计根据初始数据参数，依此算出胶带输送机的受力情况和其他部件的参数，进行选型设计。本次选型设计采用1:1分配，得出尾部张力最小，根据布置原则，张紧装置一般布置在输送带张力最小处，所以本文采用重载车式张紧装置进行张紧。如今，带式输送机正向长距离、高带速、大功率、大运量的大型化自动化方向发展，使其在煤炭行业得到广泛的应用。

关键词: 带式输送机；双滚筒驱动；张紧

Abstract

Coal belt conveyor from its inception, after hundreds of years of continuous improvement and improvement, has now entered the metallurgical, coal, chemical, mining and other industries. Which has the advantages of simple structure, easy operation, conveying material range wide, large conveying capacity, transportation distance is long, the adaptive line is also strong, handling material is very convenient, high reliability, low operating costs, investment in infrastructure, low energy consumption, high efficiency, less maintenance cost advantages.

The design is DX model core type belt conveyer of wire rope, the machine header adopts two cylinder drives ,in guarantee cylinder do not occur the prerequisite with slippery dozen transmit greater power, reduce raising the tension of belt conveyer and improve service life. The selection and design of the distribution, draw the tail tension minimum according to the principle of layout, tensioning device is generally arranged in conveying belt tension minimum. Therefore, this paper uses heavy truck type tensioning device for tensioning. Today, belt conveyor forward to a long distance, high belt speed, large power, large volume of large-scale automation development, so that it is widely used in the coal industry.

Keyword : Belt conveyer；two cylinder drive；tight

1 绪论 (1)

1.1 前言 (1)

1.2 带式输送机的发展史 (1)

1.2.1国外带式输送机的发展 (1)

1.2.2国内带式输送机的发展 (2)

1.2.3 矿山运输与提升的地位和作用 (2)

1.2.4带式输送机的发展趋势 (4)

1.3 带式输送机的分类 (5)

1.4 带式输送机的特点及应用 (6)

2 带式输送机的整体选型设计方案 (7)

2.1 方案的提出 (7)

2.2 工作原理 (8)

3 带式输送机的选型设计计算 (12)

3.1 选型设计初始参数 (12)

3.2 根据实际输送量计算带宽 (12)

3.3 运行阻力 (15)

3.4 牵引力及运行功率 (20)

3.5 输送带张力计算 (21)

3.6 输送带强度验算 (23)

3.7 滚筒直径的确定 (24)

3.8 驱动装置的选型及计算 (24)

3.8.1电动机的选型 (25)

3.8.2液力偶合器的选型 (25)

3.8.3减速器的选型 (25)

3.8.4联轴器的选型 (28)

3.8.5制动器的选型及计算 (29)

3.9 拉紧力计算 (33)

4 主要部件型号的选择 (35)

4.1 输送带 (35)

4.1.1输送带的发展 (35)

4.1.2输送带的种类及差异 (35)

4.1.3输送带的要求 (36)

4.1.4钢丝绳芯输送带 (36)

4.2 拉紧装置 (37)

4.2.1拉紧装置的作用 (37)

4.2.2拉紧装置的分类及特点 (38)

4.3 托辊 (38)

4.3.1托辊的结构及作用 (39)

4.3.2 静载荷计算 (39)

4.3.3 动载荷计算 (40)

4.3.4托辊的选择 (42)

4.4清扫装置 (44)

4.4.1清扫器的作用 (44)

4.4.2清扫器的形式 (44)

4.5 传动滚筒、改向滚筒 (45)

4.5.2改向滚筒的选取 (47)

4.5.3环形胀套 (47)

4.6 机架的设计与选取 (48)

结论 (50)

经济技术分析 (51)

致谢 (53)