载煤车厢平整系统研究与设计

机械论文编号:JX228 所有图纸,任务书.论文字数:11803.页数:95

目  录
任务书.......................................................................i
中文摘要 ....................................................................ii
ABSTRAC .....................................................................iii
1 绪论.......................................................................1
1.1车厢煤面存在的问题........................................................1

1.1.1 弊端 ..................................................................1
1.1.2人工平整的利弊..........................................................4
1.1.3车厢平整的标准和意义....................................................5
2  平整装置设计要求..........................................................6
2.1平整装置设计特点原则和要求 ...............................................6
2.1.1 设计特点...............................................................6
2.1.2 设计原则...............................................................7
3 平整装置设计方案...........................................................10
3.1平整装置伸缩动臂机构柔性设计方案..........................................7
3.1.1柔性伸缩动臂机构的原理以及结构特征......................................7
3.1.2柔性伸缩动臂机构的优点..................................................8
4平整装置液压系统的设计......................................................9
4.1功能概述..................................................................9
4.2液压泵的主要性能参的理论设计..............................................10
4.2.1液压泵的压力............................................................11
4.2.2液压泵的排量、流量和容积效率............................................11
4.2.3液压泵的功率和效率......................................................12
4.2.4液压泵的流量及主要参数的确定............................................12
4.2.5泵的工作压力的确定......................................................13
4.2.6泵的驱动功率............................................................14
4.2.7液压动力源电动机计算与选型..............................................15
4.3执行液压缸的设计..........................................................15
4.3.1伸缩动臂缸B缸参数计算...................................................15
4.3.2  活塞杆稳定性校核......................................................19
4.3.3  活塞杆的强度计算......................................................20
4.3.4缸筒壁厚的计算及校核....................................................21
4.4缸筒的设计与计算..........................................................24
4.4.1缸筒结构................................................................24
4.4.2缸筒材..................................................................25
4.4.3对缸筒的要求............................................................26
4.4.4缸筒计算................................................................26
4.4.5缸筒与端盖螺纹联接部分 .................................................26
4.4.6缸筒与端部焊接..........................................................27
4.4.7缸筒制造加工技术要求 ...................................................28
4.5活塞......................................................................33
4.5.1活塞结构型式............................................................33
4.5.2活塞与活塞杆的连接......................................................33
4.5.3活塞的密封..............................................................34

摘   要

     文章主要介绍平整装置的液压系统主动臂、副动臂、伸缩臂、铲斗的尺寸参数设计和有关计算。首先介绍平整装置设计目的和设计依据，适用性等。重点是工作概况及性能参数的设计计算和设计要求，并根据性能参数来选择主要的工作元件如液压缸，销轴等。接着介绍各个工作装置的工作原理，铲斗、动臂、斗杆、推杆、的工作情况。然后对工作装置的驱动进行设计，包括液压缸主要参数的设计及液压缸工作时主要参数的计算如液压泵，电机的选型设计和计算。最后，对多功能铲斗尺寸参数进行设计和计算，然后对工作装置设计的各个阶段进行了分析研究，并且用设计软件建模对平整装置的主动臂、副动臂、伸缩动臂的受力分析，运动仿真，参数优化，强度校核等。

【关键词】  工作装置;液压系统;设计;建模;优化; 动臂;动力分析

ABSTRACT

       This article mainly presents the design  and   relevant  calculation of the hydraulic system the master arm, vice-moves the arm, expands and contracts the arm size parameter in  the formation  devices. First of all, design goal and design basis Serviceability And so on The key point is the work survey and the performance parameter design calculation and designs the request and how to choose the  major components according to the parameters If the hydraulic cylinder, sells the axis and so Secondly, the article presents the working principle of every part in the design how the bucket, the arm and the boom斗Throwout lever  respectively works. A After that, it reveals the design of the drive of the working settings including the design of the major parameters of the hydraulic cylinder and it alculation at work，If hydraulic pump, electrical machinery shaping design and computation In the end, Carries on the design and the computation to the multi-purpose scoop size parameter Then every phases of Working device design is studied on ，and with design software modelling to the smooth installment master arm, vice-moves the arm, the expansion and contraction moves the arm the stress analysis, the movement simulation, the parameter optimizes, intensity examination and so on.

【Key Word】：Working device ;hydraulic system ; design; Modeling; Optimization; lift-arm；namic analysis