升降會(huì)議桌設(shè)計(jì)

機(jī)械設(shè)計(jì)制造及其自動(dòng)化論文，論文編號(hào):JX1001  論文字?jǐn)?shù):18899.頁(yè)數(shù):41

摘     要

 本文介紹了單液壓缸驅(qū)動(dòng)自動(dòng)升降會(huì)議桌的設(shè)計(jì)過程。平臺(tái)機(jī)械部分由機(jī)構(gòu)、液壓部分、若干行程開關(guān)和位置開關(guān)組成。其中機(jī)構(gòu)由兩組交叉運(yùn)動(dòng)部件、中間連接構(gòu)件、底盤組件組成，在液壓缸的推動(dòng)下完成平臺(tái)的上升、下降動(dòng)作。
 在進(jìn)行自動(dòng)升降會(huì)議桌的升降機(jī)構(gòu)設(shè)計(jì)時(shí)，面臨的關(guān)鍵問題是如何實(shí)現(xiàn)平臺(tái)的平穩(wěn)上升和上止點(diǎn)下止點(diǎn)的位置保持。目前常用的方法有采用液壓缸驅(qū)動(dòng)和渦輪蝸桿螺旋上升。本文設(shè)計(jì)采用單液壓缸推動(dòng)中間連接進(jìn)而推動(dòng)兩個(gè)X型交叉連桿實(shí)現(xiàn)上下運(yùn)動(dòng)的方案。保持位置功能主要在設(shè)計(jì)液壓部分體現(xiàn)，液壓回路可以設(shè)計(jì)成鎖緊回路，換向閥選擇中位閉鎖的M型。本文分零件設(shè)計(jì)、液壓系統(tǒng)設(shè)計(jì)、電路設(shè)計(jì)幾個(gè)部分詳細(xì)敘述了自動(dòng)升降液壓會(huì)議桌的設(shè)計(jì)過程。

關(guān)鍵詞：升降會(huì)議桌  交叉連桿  液壓  換向閥  

Abstract

 This paper introduces the design process of a single-cylinder drive autolift council board. Mechanical parts of the platform include Agencies, hydraulic parts, a number of switches and locations trip switch. The agencies are composed by two cross-moving parts, the middle connecting part and chassis components, to promote the movement of platform ascending, descending by the cylinder.
 During the design of the automatic lift conference table, the key question is how to achieve the stable platform when it rise and demand to keep it at the top and bottom point. At present, the common methods are hydraulic cylinder and the turbine-driven worm spiral. This paper describes the design with a single hydraulic cylinder to promote further promote the link between X-2 cross rod upper campaign. The function of keeping location is reflect by the design of the hydraulic parts, embodiment of hydraulic circuit can be designed to lock loop, Choice-valve artesian-M. This paper is divided into design of parts, hydraulic system design and the circuit design which described the processing of the autolift council board designment. 
 
Keywords： Autolift council board  Cross rod  Hydraulic  Valve

目  錄
摘   要 I
Abstract II
目  錄 III
第一章 緒論 1
1.1 研究動(dòng)機(jī)與目的 1
1.2 研究背景 1
1.3 研究方法與系統(tǒng)描述 2
1.4 本章小結(jié) 3
第二章 零件設(shè)計(jì) 4
2.1 零件設(shè)計(jì) 4
2.1.1 避免在預(yù)定壽命期內(nèi)失效的要求 4
2.1.2 結(jié)構(gòu)工藝性要求 4
2.1.3 經(jīng)濟(jì)性要求 5
2.1.4 質(zhì)量小的要求 5
2.1.5 可靠性要求 5
2.2 機(jī)械零件設(shè)計(jì)的一般步驟 5
2.3 系統(tǒng)受力分析強(qiáng)度校核 8
2.4 本章小結(jié) 12
第三章 液壓系統(tǒng)設(shè)計(jì) 13
3.1 采用液壓傳動(dòng)的優(yōu)點(diǎn) 13
3.2 液壓系統(tǒng)的設(shè)計(jì)步驟與設(shè)計(jì)要求 13
3.3 具體設(shè)計(jì) 14
3.3.1 進(jìn)行工況分析，確定系統(tǒng)的主要參數(shù) 14
3.3.2 制定基本方案，擬定液壓系統(tǒng)原理圖 14
3.3.3 液壓元件的選擇 15
3.3.4 液壓系統(tǒng)的校核 17
3.4 本章小結(jié) 19
第四章 電路設(shè)計(jì) 20
4.1 電路分析 20
4.2 擬定原理圖，確定方案 20
4.3 本章小結(jié) 22
第五章 總 結(jié) 23
參考文獻(xiàn) 24
致 謝 25