三梁四柱式液壓機的總體設(shè)計及液壓系統(tǒng)【標稱壓力2500KN】【優(yōu)秀課程畢業(yè)設(shè)計含3張CAD圖紙+帶開題報告+外文翻譯】

三梁四柱式液壓機的總體設(shè)計及液壓系統(tǒng)【標稱壓力2500KN】

摘要

液壓機是制品成型生產(chǎn)中應(yīng)用最廣的設(shè)備之一，也是理想的成型工藝設(shè)備，特別是當液壓機系統(tǒng)實現(xiàn)具有對壓力、行程、速度單獨調(diào)整功能后，不僅能實現(xiàn)對復(fù)雜工件以及不對稱工件的加工，而且，廢品率非常低，與機械加工系統(tǒng)相比，有極大的優(yōu)越性。近年來，隨著微電子技術(shù)、液壓技術(shù)等的發(fā)展，液壓機有了更進一步的發(fā)展，其高技術(shù)含量增多，眾多機型已采用CNC或PC機來控制，提高了產(chǎn)品加工質(zhì)量和生產(chǎn)率。

首先，本論文從總體上對液壓機本體結(jié)構(gòu)，及主要結(jié)構(gòu)部件進行設(shè)計及必要的校核。其次，對整個液壓控制系統(tǒng)進行初步設(shè)計，對液壓機主缸主要參數(shù)進行計算，并對所得結(jié)果進行分析、驗算。從而力爭使液壓機主缸能夠滿足生產(chǎn)工藝要求，并從整體上提高液壓機的工藝水準，使液壓機設(shè)計水平更上一個新的臺階。本次設(shè)計主要針對不同工藝要求下，根據(jù)液壓機總體結(jié)構(gòu)，主缸的推力大小及工作條件的要求來對液壓缸的部件類別進行選擇，同時涉及到液壓缸的支撐型式及活塞與活動橫梁的連接型式和導(dǎo)套及密封件等進行選擇，力求達到提高液壓機整體使用強度及壽命，同時使工藝精度符合生產(chǎn)要求的目的。

關(guān)鍵詞：液壓機；液壓控制系統(tǒng)；主缸

Abstract

The hydraulic brake is one of the applied broadest equipment in the productions, and also the ideal forming technological equipment. Especially when the system of hydraulic brake realized the adjustment to the press, traveling schedule and speed, the equipment not only completes the processing of the complex and asymmetrical work-pieces, and moreover the rate of its rejection is very low, comparing with the machine-finishing system, which has the enormous superiority. In the resent years, with the development of the microelectronic and hydraulic technology, the hydraulic brake has the further development, whose high-tech content is increasing, and the numerous types had controlled by the CNC or PC machine which increases the processing quality and the productivity.

At first, this paper as a whole carries the design and the essential examination on the hydraulic brake. Second, it carries on the preliminary design to the entire hydraulic control system, and the computation to the main parameters of its master cylinder, then analyses the obtained results. Thus it enables the master cylinder of the hydraulic brake to satisfy the request of the product technique, and enhances its standard overall, which causes its design level on a new stair. This design is mainly in the view of different technological requests, according to the main structures of the equipment, the force sizes of the master cylinder and the request of the working conditions to choose the kinds of every part. At the same time, it involves the choices of hydraulic cylinder's support pattern and piston and active crossbeam connection pattern and guide sleeve and seal, enhancing the hydraulic press whole use intensity and the life and causing the craft precision to conform to the request goal productions.

Keywords: The hydraulic brake; the hydraulic controlling system; master cylinder

目錄

摘要 1

Abstract 2

前言 5

1 液壓機概述 6

1.1液壓機工作原理 6

1.2 液壓機的特點及分類 7

1.2.1液壓機的特點 7

1.2.2 液壓機的分類 8

1.3 液壓機典型結(jié)構(gòu) 9

1.4液壓機技術(shù)的發(fā)展現(xiàn)狀 10

1.5液壓機技術(shù)發(fā)展趨勢 12

2 液壓機本體設(shè)計 13

2.1液壓機的基本參數(shù)及其選用 13

2.2四柱式組合機架的設(shè)計計算 14

2.2.1立柱的受力分析 14

2.2.2力柱尺寸的取值 16

2.2.3立柱的強度較核 16

2.2.4橫梁強度和剛度計算 17

2.2.5整體框架式機身強度、剛度計算 22

2.3 液壓機的液壓系統(tǒng) 24

2.3.1 液壓系統(tǒng)機構(gòu)形式及特點 24

2.3.2一般通用液壓機的液壓系統(tǒng) 25

2.3.2  液壓系統(tǒng)工作過程 26

3 液壓機主缸設(shè)計 30

3.1液壓缸的主要性能參數(shù)的計算 31

3.1.1液壓缸的壓力值 31

3.1.2活塞的運動速度 31

3.1.3液壓缸的速比 32

3.1.4活塞的理論推力和拉力 32

3.2液壓缸缸筒設(shè)計 33

3.2.1液壓缸缸筒機構(gòu)及材料的選擇 33

3.2.2 液壓缸缸筒的計算 34

3.2.3液壓缸缸筒部分較核 37

3.2.4 缸筒螺紋連接部分計算 37

3.3液壓缸活塞的設(shè)計 39

3.4活塞桿的設(shè)計計算 40

3.4.1活塞桿直徑的計算 40

3.4.2 活塞桿的強度計算 40

3.5活塞桿的導(dǎo)向套和密封 42

3.5.1 導(dǎo)向套結(jié)構(gòu)及相關(guān)計算 42

3.6 緩沖裝置 43

3.7 排氣閥的設(shè)計 44

3.8 與液壓缸相關(guān)的連接結(jié)構(gòu)設(shè)計 45

3.8.1 液壓缸與上橫梁連接結(jié)構(gòu)設(shè)計 45

3.8.2 活塞桿與活動橫梁連接結(jié)構(gòu)設(shè)計 46

4 結(jié)論 47

致謝 48

參考文獻 49

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A0-整體結(jié)構(gòu)圖.dwg

A0-整體結(jié)構(gòu)圖.exb

A2-液壓系統(tǒng)圖.dwg

A2-液壓系統(tǒng)圖.exb

三梁四柱式液壓機的總體設(shè)計及液壓系統(tǒng)【標稱壓力2500KN】開題報告.doc

三梁四柱式液壓機的總體設(shè)計及液壓系統(tǒng)【標稱壓力2500KN】說明書正文.doc

內(nèi)封.doc

實習(xí)報告.doc

摘要.doc

文件清單.txt

正文.doc

液壓缸A1.dwg

液壓缸A1.exb