本科毕业设计（论文）通过答辩

摘 要

国内使用的颚式破碎机类型很多, 由于复摆颚式破碎机结构简单，制造容易、工作可靠、使用维修方便，所以应用最为广泛。本次设计的复摆颚式破碎机的参数要求为出料口尺寸：10-40mm；进料块最大尺寸：120mm；产量：10-40吨。根据参数要求，我设计的是PEX150×750复摆颚式破碎机，主要设计工作是分析了颚式破碎机的发展现状研究颚式破碎机的意义及复摆颚式破碎机机构尺寸对破碎性能的影响，计算确定了PEX150×750的设计参数。设计内容主要包括了复摆颚式破碎机的动颚、偏心轴、皮带轮、地基、动颚齿板、机架等一些重要部件；另外对颚式破碎机的工作原理及特点和主要部件作了介绍，包括保险装置、调整装 置、机架结构、润滑装置等；同时对机器参数（主轴转速、生产能力、破碎力、功率等）作了计算以及对偏心轴作了设计。此外也简单介绍了破碎的意义、破碎工艺和破碎比的计算，颚式破碎机的主要部件的安装、颚式破碎机的操作及维修等。

关键词：复摆颚式破碎机；传动；磨损

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本科毕业设计（论文）通过答辩

Abstract

There are various types of jaw crushers in our country. The most common one is a traditional pendulum jaw crusher, because it is easy to be made, reliable and convenient in working and maintaining with its simple structure. This graduation project is discussed to meet the production need of the outlet size: 10-40mm, maximum size of feeding block: 120mm, and output: 10-40t. According to the requirements above, I design this pendulum jaw crusher (PEX150X750). This project analyzes the current situation of jaw crusher, discusses the significance of jaw crusher and how its mechanism and size affect the crushed performance. The design parameter of PEX150X750 is determined by calculating. The designing content mainly includes jaw crusher’s move jaw, eccentric shaft, belt pulley, ground, toothed rack of move jaw, rank and some important components. Besides, it introduces jaw crusher’s working principle and features and its main components, including safety device, adjusting device, rack construction, and lubricating device, etc. Also, machine parameter (speed of main shaft, production capacity, crushed force, power etc.) is calculated and eccentric shaft is designed. Moreover, this project gives a brief outline of crushing significance, crushing process and calculation of reduction ratio, installation of jaw crusher’s main components, operation and maintenance of jaw crusher.

Key words: pendulum jaw crusher; transmission; attrition

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本科毕业设计（论文）通过答辩

目 录

摘 要 .......................................................................................................................................... I ABSTRACT ............................................................................................................................. II 1 绪论 ...................................................................................................................................... 1 1.1 引言 ................................................................................................................................ 1 1.2 历史发展 ........................................................................................................................ 3 2 总体方案设计 ...................................................................................................................... 5 2.1 颚式破碎机的类型 ........................................................................................................ 5 2.2 颚式破碎机的工作原理 ................................................................................................ 5 2.3 简述颚式破碎机的结构及运转 .................................................................................... 9 2.3.1 破碎腔 ..................................................................................................................... 9 2.3.2 动颚 ....................................................................................................................... 10 2.3.3 肘板 ....................................................................................................................... 11 2.3.4 齿板 ....................................................................................................................... 13 2.3.5 调整装置 ............................................................................................................... 14 3 颚式破碎机的参数 ............................................................................................................ 16 3.1 结构参数 ...................................................................................................................... 16 3.1.1 进料口与卸料口 ................................................................................................... 16 3.1.2 动颚板摆动行程S与偏心轴的偏心距r ............................................................ 16 3.1.3 啮角 ....................................................................................................................... 17 3.2 工作参数 ...................................................................................................................... 18 3.2.1 偏心轴的转速 ....................................................................................................... 18 3.2.2 生产能力 ............................................................................................................... 20 3.2.3 电动机的选择 ....................................................................................................... 20 4 部分关键部件的设计与校核 ............................................................................................ 22 4.1 轴的设计、校验 .......................................................................................................... 22 4.2 轴承的选择与校验 ...................................................................................................... 25 5 细碎颚式破碎机的使用与测试 ........................................................................................ 28 5.1 细碎颚式破碎机的操作 .............................................................................................. 28

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本科毕业设计（论文）通过答辩

5.1.1 起动前的准备工作 ............................................................................................... 28 5.1.2 操作顺序 ............................................................................................................... 28 5.1.3 起动和运转中应注意的事项 ............................................................................... 29 5.2 颚式破碎机的维护与保养 .......................................................................................... 29 5.2.1 颚式破碎机的日常维护 ....................................................................................... 29 5.2.2 颚式破碎机的故障分析与排除 ........................................................................... 30 5.3 颚式破碎机的安装修理与运转 .................................................................................. 33 5.3.1 颚式破碎机的安装 ............................................................................................... 33 5.3.2 颚式破碎机的运转 ............................................................................................... 35 5.3.3 颚式破碎机主要零件的修理 ............................................................................... 36 总 结 ...................................................................................................................................... 38 致 谢 ...................................................................................................................................... 39 参考文献 .................................................................................................................................. 40 附录A 英语原文 .................................................................................................................. 41 附录B 汉语翻译 .................................................................................................................. 50

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