振动筛说明书

摘要

摘 要

双通道直线振动筛是目前我国煤炭企业使用率较高的一种振动筛。双通道直线振动筛也广泛应用于冶金、煤炭、化工、耐火、水泥、陶瓷、建材、粮食、矿山、建材、电力等各行各业中，用于对各种物料不同程度的分级要求作业。双通道直线振动筛采用双电机带动两根轴，两根轴做反向同步回转，从而使偏心块也做反向同步回转，产生离心力，使筛箱产生振动。筛箱振动使物料产生向前和向下两个方向的运动，从而使物料在筛面上便沿着与这个方向成一定角度的抛挣和筛分。主要通过对短轴，偏心块，筛框的设计，对轴承的选取和校核，对轴的校核等来完成直线振动筛的设计。传统的振动筛的设计，筛子筛框、横梁的等尺寸过大，整机重量过大，所需激振力及相应激振器的尺寸也过大，会带来零部件易损坏，整机的可靠性和寿命降低等许多问题。因此研究双通道的结构，可较好地解决振动筛大型化所带来的问题。

关键词 偏心块；轴；激振器；双通道直线振动筛

江南大学学士

Abstract

Vibrating straightly bolter is a kind of oscillation bolter that current our country choose the coal plant usage at most.Vibrate the bolter the too extensive applying straightly in the metallurgy, building materials, chemical engineering, refractor, cement, ceramic, food, mine mountain, coal, building materials, electrical power...etc. every trade inside, used for the operation of graduation to differ the degree to every kind of material.Vibrate the bolter the adoption straightly the dipeptide electrical engineering arouse two indogen axis, two indogen axises make the anti - faces the synchronous turn-over, from and make lack of impartiality the cake to also make the anti - face synchronous turn round, the centrifugal force of the creation, make bolter box occurrence oscillation.The bolter box oscillation make material generated forward the sum gets down two runnings of direction, from but material is on the bolter face then along this direction the certain angle throws the material and bolter bat batch.Pass primarily to the brachyaxis, eccentricity cake, the design of the crid of bolter, to the select of the bearing and school riboside, come to the design that over rectilinear vibrate bolter to the axial school riboside iso Conventional vibrating screen, sieve screen frame, beams and other oversized, heavy weight machine, the required excitation force and the corresponding size of the exciter is also too large, fragile parts will bring the whole machine reliability and lower life expectancy and many other issues. Therefore, the structure of dual-channel, shaker can solve the problems caused by large-scale.

Key words Eccentricity cake shaft Exciter Dual-channel linear vibrating screen

目录

目 录

摘 要 .......................................................................................................................... I 第1章 绪论 ............................................................................................................. 1

1.1 概述 ............................................................................................................ 1 1.2 典型介绍 .................................................................................................... 1

1.2.1 DSM系列直线振动筛 ...................................................................... 1 1.2.2 ZSM系列直线振动筛 ...................................................................... 2

第2章 方案拟订 ..................................................................................................... 2

2.1 传动方式分析 ........................................................................................... 2

2.1.1 非直接传动 ..................................................................................... 2 2.1.2 直接传动 ......................................................................................... 2 2.2 支撑形式与隔振装置分析 ........................................................................ 3 2.3 设计方案介绍与选择 ................................................................................ 4 第3章 工作原理分析 ............................................................................................. 6 第4章 结构简图 ..................................................................................................... 8

4.1 参数的计算程序 ........................................................................................ 8 4.2 惯性振动筛参振质量的计算 .................................................................... 8 4.3 计算隔振弹簧刚度 .................................................................................... 8 4.4 所需激振力力幅及质量矩的计算 ............................................................ 9 4.5 振动筛传给地基的负荷 ............................................................................ 9

4.5.1 静负荷: ............................................................................................ 9 4.5.2 动载荷 ........................................................................................... 10 4.5.3 最大动载荷 ................................................................................... 10 4.6 电动机功率的计算与电机选择 .............................................................. 10

4.6.1 所需电机功率 ............................................................................... 10 4.7 质心的计算和激振器位置的选择 .......................................................... 11

4.7.1 激振器位置的选择 ....................................................................... 11 4.7.2 质心的确定 ................................................................................... 11 4.8 惯性振动筛工艺参数的选择计算 .......................................................... 12

4.8.1 筛面倾角 ....................................................................................... 12 4.8.2 振动方向角? ............................................................................... 12 4.8.3 振幅是振动筛 ............................................................................... 12 4.8.4 筛面的振动频率n ........................................................................ 12 4.8.5 物料的运动速度 ........................................................................... 12 4.8.6 筛面的长度和宽度 ....................................................................... 13 4.8.7 生产率 ........................................................................................... 13

第5章 激振器的选择 ........................................................................................... 14

5.1 偏心块的设计 .......................................................................................... 14 5.2 轴的设计 .................................................................................................. 16

5.2.1 按扭矩初步估算轴径和选择连轴器 ........................................... 16 5.2.2 轴的结构设计和校核 ................................................................... 17 5.3 键的强度校核 .......................................................................................... 20 5.4 轴承的校核 .............................................................................................. 20 5.5 轴承的润滑 .............................................................................................. 21 5.6 筛箱的设计分析与计算 .......................................................................... 21

5.6.1 筛面 ............................................................................................... 21

III

江南大学学士

5.6.2 筛面的固定方法 ........................................................................... 26 5.6.2 筛框 ............................................................................................... 27

第6章支撑形式与隔振装置分析 ........................................................................... 29

6.1 安装 .......................................................................................................... 29 6.2 直线振动筛的使用和检修 ...................................................................... 29

6.2.1 筛帮及筛框横梁断裂 ................................................................... 29 6.2.2 筛箱横梁断裂 ............................................................................... 30 6.2.3 振动筛的检修 ............................................................................... 30 6.2.4 振动器润滑与密封 ....................................................................... 30

结论 ........................................................................................................................... 34 致谢 ........................................................................................................................... 35 参考文献 ................................................................................................................... 36