机械5

矿山简摆颚式破碎机的设计 DESIGN OF A SIMPLE PENDULUM JAW CRUSHER 摘要 在我国颚式破碎机的发展挺快速的，不少工业都在对它进行改善，破碎机划分为三个类型，是根据动颚的摆动方法来区分分类的，为简摆式、复摆式、综合摆动式。 颚式破碎机主要用来破碎应力挺大的一些矿石物料，如铁矿石、金矿石等各种强度硬度都比较高的矿石。在建材工业中它主要用来破碎一些巨大的石块还有坚硬的石块，比如石灰等。 本文以型号的简摆颚式破碎机为设计对象，在传统破碎机设计理论的基础上，对主要零部件和整体方案进行了设计和改进，介绍破碎的目的及意义、破碎机概述及工作原理、动力学分析、破碎力计算、主要零件的结构设计和安装运转等方面。实现了破碎机在安全性、稳定性与节能高效等多个方面的的统一，具有良好的使用前景。 关键词破碎机；破碎力；破碎腔；轴 Abstract The developme
nt of jaw crushers i
n our cou
ntry is very fast, a
nd ma
ny i
ndustries are improvi
ng it., The crusher is divided i
nto three types, which are classified accordi
ng to the swi
ng method of the dy
namics, which are simple pe
ndulum type, compou
nd pe
ndulum type, a
nd comprehe
nsive swi
ng type. Jaw crusher is mai
nly used to break some ore materials with high stress.Such as iro
n ore, gold ore, molybde
num ore, copper ore a
nd dolomite. I
n the buildi
ng material i
ndustry, it is mai
nly used to crush some huge rocks a
nd hard rocks, such as lime. I
n this paper, the PJ900x1200 model is simplified as the desig
n object. Based o
n the traditio
nal crusher desig
n theory, the mai
n compo
ne
nts a
nd the overall program were desig
ned a
nd improved.The purpose a
nd sig
nifica
nce of crushi
ng, crusher overview a
nd worki
ng pri
nciple, dy
namic a
nalysis, crushi
ng force calculatio
n, structural desig
n a
nd i
nstallatio
n a
nd operatio
n of mai
n parts are i
ntroduced.The crusher is u
nified i
n ma
ny aspects such as safety, stability, e
nergy savi
ng a
nd high efficie
ncy, a
nd has a good use prospect. Key words Crusher crushi
ng force crushi
ng cavity shaft 目录 摘要.................................................................................................................................I Abstract..........................................................................................................................II 1绪论............................................................................................................................1 1.1物料破碎的意义................................................................................................1 1.2破碎的目的.......................................................................................................1 1.3破碎的工艺........................................................................................................2 1.4破碎物料的性能及破碎比................................................................................4 1.4.1产品粒度及其表示方法........................................................................4 1.4.2破碎产品的粒级特性............................................................................5 1.4.3矿石的破碎及力学性能........................................................................6 2简摆颚式破碎机概述................................................................................................8 2.1简摆颚式破碎机额的简介................................................................................8 2.1.1发展历程简介............................................................................................9 2.1.2破碎机的研究现状....................................................................................9 2.1.3本课题的主要研究内容............................................................................9 2.2简摆颚式破碎机的工作原理及结构...............................................................10 2.2.1工作原理..................................................................................................10 2.2.2结构..........................................................................................................11 2.3维护与操作中的注意事项..............................................................................13 3简摆颚式破碎机的运动学与动力学分析..............................................................15 3.1运动分析..........................................................................................................15 3.2位移分析..........................................................................................................20 3.3主要零件受力计算..........................................................................................21 3.4简摆颚式破碎机的运动方程式......................................................................24 3.4.1力矩形式的运动方程式..........................................................................24 3.4.2等效转动惯量...........................................................................................25 3.4.3等效力矩..................................................................................................25 4简摆颚式破碎机的主参数设计计算......................................................................26 4.1设计前提..........................................................................................................26 4.1.1破碎机整体设计要求..............................................................................26 4.2破碎机的钳角的确定......................................................................................27 4.3偏心距及动颚摆幅的计算..............................................................................28 4.4破碎力的计算..................................................................................................29 4.4.1破碎力的计算..........................................................................................29 4.4.2最大破碎力..............................................................................................31 4.5功率的计算......................................................................................................31 5重要零件的设计和校核..........................................................................................33 5.1带及带轮的设计..............................................................................................35 5.2曲轴的设计......................................................................................................33 5.3连杆...................................................................................................................39 5.4肘板设计..........................................................................................................40 5.5动颚及齿板结构的设计..................................................................................41 5.6机架结构..........................................................................................................42 5.7滑动轴承的设计计算......................................................................................43 5.8调整装置..........................................................................................................44 5.9过载保护装置..................................................................................................44 5.10传动件............................................................................................................45 5.11飞轮................................................................................................................45 5.12润滑装置........................................................................................................45 结论.......................................................................................................................46 致谢.......................................................................................................................47 参考文献...............................................................................................................48