畢業(yè)論文標準WORD格式排版 共 74頁 24725字 附底座.exb 液壓支架.exb



摘要

本設(shè)計介紹的是煤礦行業(yè)中使用的支撐掩護式液壓支架和液壓支架中一個重要部件底座的設(shè)計。支撐式液壓支架在煤炭行業(yè)是一種非常重的設(shè)備，它在采煤工作面中為了防止頂板冒頂，維持一定的間空，保證工人安全和各項工作的正常運行，必須對頂板進行支護。液壓支架是以高壓液體作為動力的，由液壓元件與金屬構(gòu)件組成支護和控制頂板的設(shè)備安是實現(xiàn)支撐和切頂、移動液壓支架和推移輸送機等一整理套工序。

底座的用途是為了支架和其它結(jié)構(gòu)和工作機構(gòu)提供安全設(shè)備的基礎(chǔ)，還有為了與前后連桿和掩護梁一起組成四連桿機構(gòu)和將立柱前后連傳遞的頂板壓力傳遞給底板。底座又分為分式鉸接底座和鋼性底座兩種。

關(guān)鍵詞：液壓支架、立柱、底座、連桿。



Abstract

This design introduces the support shield type hydraulic pressure support and the pedestal design which is an important part of the hydraulic pressure support, they are used in the coal mine profession. The hydraulic pressure support in the coal profession is one kind of extremely heavy equipment, it must support and protect the roof, in mining coal working surface, in order to prevent the roof braves to gore, maintain certain space, guarantee the workers’ safety and each work’s normal operation. The hydraulic pressure support takes the power by the high-pressured liquid, the equipment of timbering and controlling the roof is composed by the hydraulic pressure part and the steel work, realizes one whole set working procedures which include the support and cut、the motion of hydraulic pressure support and the process of conveyer and so on.

Not only the pedestal provides the foundation of the safety equipment for the support and other structure operating mechanism, moreover with the front, the rear connecting rod and shields girder compose four link motion gears together, and transmits roof pressure which transmitted by the column front and rear to the bottom plate. The pedestal is divided into the hinged pedestal and the steel pedestal two kinds.

Key words: hydraulic pressure support; column; pedestal; connecting rod。



目錄

前言………………………………………………………………………………1

1.液壓支架的概述………………………………………………………………2

1.1液壓支架的組成和用途 ……………………………………………………2

1.1.1液壓支架的組成…………………………………………………………2

1.1.2液壓支架的用途………………………………………………………2

1.2液壓支架的工作原理……………………………………………………2

1.2.1升柱 …………………………………………………………………2

1.2.2降柱……………………………………………………………………2

1.2.3支架和輸送機前移……………………………………………………2

1.3液壓支架設(shè)計目的、要求和設(shè)計支架必要的基本參數(shù)……………………3

1.3.1設(shè)計目的………………………………………………………………3

1.3.2液壓支架的基本要求…………………………………………………4

1.3.3設(shè)計液壓支架必需的基本參數(shù)…………………………………………4

1.4液壓支架的選型…………………………………………………………5

1.4.1液壓支架的支撐力與承載關(guān)系………………………………………5

1.4.2液壓支架架型的分類………………………………………………5

1.4.3 液壓支架選型原則………………………………………………7

1.4.4 液壓支架設(shè)計的原始條件……………………………………………8

2.液壓支架的整體結(jié)構(gòu)尺寸設(shè)計……………………………………………9

2.1液壓支架基本技術(shù)參數(shù)的確定…………………………………………9

2.1.1支護高度………………………………………………………………9

2.1.2支架間距………………………………………………………………10

2.1.3底座長度………………………………………………………………10

2.1.4支護強度………………………………………………………………10

2.2液壓支架四連桿機構(gòu)的確定……………………………………………11

2.2.1四連桿機構(gòu)的作用……………………………………………………11

2.2.2四連桿機構(gòu)的幾何作圖法……………………………………………13

2.2.3幾何作圖法作圖過程………………………………………………14

2.2.4四連桿機構(gòu)的優(yōu)選設(shè)計法……………………………………………19

2.3液壓支架配套設(shè)備和頂梁參數(shù)的確定…………………………………20

2.3.1采煤機和運輸機型號的確定…………………………………………20

2.3.2頂梁的確定……………………………………………………………20

2.3.3對頂梁長度的影響……………………………………………………22

2.3.4頂梁主要尺寸的確定…………………………………………………22

2.4掩護梁的結(jié)構(gòu)及參數(shù)的確定……………………………………………24

2.4.1掩護梁的作用和用途……………………………………………24

2.4.2掩護梁的結(jié)構(gòu)型式………………………………………………24

2.4.3掩護梁的參數(shù)確定………………………………………………25

2.5立柱及主要參數(shù)的確定………………………………………………25

2.5.1立柱布置………………………………………………25

2.5.2立柱主要參數(shù)確定………………………………………………27

2.6千斤頂?shù)募夹g(shù)參..