載煤車廂平整系統(tǒng)研究與設(shè)計(jì)

機(jī)械論文編號:JX228 所有圖紙,任務(wù)書.論文字?jǐn)?shù):11803.頁數(shù):95

目  錄
任務(wù)書.......................................................................i
中文摘要 ....................................................................ii
ABSTRAC .....................................................................iii
1 緒論.......................................................................1
1.1車廂煤面存在的問題........................................................1

1.1.1 弊端 ..................................................................1
1.1.2人工平整的利弊..........................................................4
1.1.3車廂平整的標(biāo)準(zhǔn)和意義....................................................5
2  平整裝置設(shè)計(jì)要求..........................................................6
2.1平整裝置設(shè)計(jì)特點(diǎn)原則和要求 ...............................................6
2.1.1 設(shè)計(jì)特點(diǎn)...............................................................6
2.1.2 設(shè)計(jì)原則...............................................................7
3 平整裝置設(shè)計(jì)方案...........................................................10
3.1平整裝置伸縮動臂機(jī)構(gòu)柔性設(shè)計(jì)方案..........................................7
3.1.1柔性伸縮動臂機(jī)構(gòu)的原理以及結(jié)構(gòu)特征......................................7
3.1.2柔性伸縮動臂機(jī)構(gòu)的優(yōu)點(diǎn)..................................................8
4平整裝置液壓系統(tǒng)的設(shè)計(jì)......................................................9
4.1功能概述..................................................................9
4.2液壓泵的主要性能參的理論設(shè)計(jì)..............................................10
4.2.1液壓泵的壓力............................................................11
4.2.2液壓泵的排量、流量和容積效率............................................11
4.2.3液壓泵的功率和效率......................................................12
4.2.4液壓泵的流量及主要參數(shù)的確定............................................12
4.2.5泵的工作壓力的確定......................................................13
4.2.6泵的驅(qū)動功率............................................................14
4.2.7液壓動力源電動機(jī)計(jì)算與選型..............................................15
4.3執(zhí)行液壓缸的設(shè)計(jì)..........................................................15
4.3.1伸縮動臂缸B缸參數(shù)計(jì)算...................................................15
4.3.2  活塞桿穩(wěn)定性校核......................................................19
4.3.3  活塞桿的強(qiáng)度計(jì)算......................................................20
4.3.4缸筒壁厚的計(jì)算及校核....................................................21
4.4缸筒的設(shè)計(jì)與計(jì)算..........................................................24
4.4.1缸筒結(jié)構(gòu)................................................................24
4.4.2缸筒材..................................................................25
4.4.3對缸筒的要求............................................................26
4.4.4缸筒計(jì)算................................................................26
4.4.5缸筒與端蓋螺紋聯(lián)接部分 .................................................26
4.4.6缸筒與端部焊接..........................................................27
4.4.7缸筒制造加工技術(shù)要求 ...................................................28
4.5活塞......................................................................33
4.5.1活塞結(jié)構(gòu)型式............................................................33
4.5.2活塞與活塞桿的連接......................................................33
4.5.3活塞的密封..............................................................34

摘   要

     文章主要介紹平整裝置的液壓系統(tǒng)主動臂、副動臂、伸縮臂、鏟斗的尺寸參數(shù)設(shè)計(jì)和有關(guān)計(jì)算。首先介紹平整裝置設(shè)計(jì)目的和設(shè)計(jì)依據(jù)，適用性等。重點(diǎn)是工作概況及性能參數(shù)的設(shè)計(jì)計(jì)算和設(shè)計(jì)要求，并根據(jù)性能參數(shù)來選擇主要的工作元件如液壓缸，銷軸等。接著介紹各個(gè)工作裝置的工作原理，鏟斗、動臂、斗桿、推桿、的工作情況。然后對工作裝置的驅(qū)動進(jìn)行設(shè)計(jì)，包括液壓缸主要參數(shù)的設(shè)計(jì)及液壓缸工作時(shí)主要參數(shù)的計(jì)算如液壓泵，電機(jī)的選型設(shè)計(jì)和計(jì)算。最后，對多功能鏟斗尺寸參數(shù)進(jìn)行設(shè)計(jì)和計(jì)算，然后對工作裝置設(shè)計(jì)的各個(gè)階段進(jìn)行了分析研究，并且用設(shè)計(jì)軟件建模對平整裝置的主動臂、副動臂、伸縮動臂的受力分析，運(yùn)動仿真，參數(shù)優(yōu)化，強(qiáng)度校核等。

【關(guān)鍵詞】  工作裝置;液壓系統(tǒng);設(shè)計(jì);建模;優(yōu)化; 動臂;動力分析

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