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畢業(yè)設(shè)計(jì)說明書
雙鉸接剪叉式液壓升降臺(tái)的設(shè)計(jì)
摘要：雙鉸接剪叉式升降臺(tái)的設(shè)計(jì)是在原由的剪叉式升降臺(tái)的基礎(chǔ)上，運(yùn)用現(xiàn)在的靈活性、安全性、經(jīng)濟(jì)性等指標(biāo)；結(jié)構(gòu)以能夠滿足靈活性要求較高的汽車維修需要為前提,通過不同型號(hào)和響應(yīng)福建達(dá)到滿足物流、汽車維修等性能要求。
通過對(duì)雙鉸接剪叉式升降臺(tái)機(jī)構(gòu)位置參數(shù)和動(dòng)力參數(shù)的技術(shù)，結(jié)合具體實(shí)例，對(duì)機(jī)構(gòu)中良種液壓缸布置方式分析比較，并根據(jù)要求對(duì)液壓傳動(dòng)系統(tǒng)個(gè)部分進(jìn)行設(shè)計(jì)計(jì)算最終確定液壓執(zhí)行元件-液壓缸，通過對(duì)叉桿的各項(xiàng)受力分析確定臺(tái)板與叉桿的載荷要求，最終完成剪叉式液壓升降臺(tái)的設(shè)計(jì)要求。
關(guān)鍵字：升降臺(tái)；剪叉式 ；液壓
Double-hinged scissors hydraulic lifting platform design
Abstract: Double-hinged scissors lifts in the design of the previously scissors lifts on the basis of the present application flexibility, security, economic and other indicators, structural flexibility to meet higher requirements of vehicle maintenance the need for premise, and the response by different models to meet Fu jian logistics, vehicle maintenance, and other performance requirements.
Through the double-hinged scissors lifts Position parameter and the dynamic parameters of technology, combined with specific examples, the agency improved in the hydraulic cylinder layout analysis and comparison, and in accordance with the requirements of part of a hydraulic system design and calculation of final Pressure implementation components - hydraulic cylinder, through analysis of the fork-defined plate and fork-load requirements, the final completion of scissors hydraulic lifts the design requirements.
Key Words：Cage assembly；Scissors forks are dyadic；Hydraulic pressure
目 錄
第一章 緒 論························································ 1
1.1 舉升機(jī)的發(fā)展簡史·····················································1
1.2 汽車舉升機(jī)的設(shè)計(jì)特點(diǎn) ···············································2
1.3 汽車舉升機(jī)的安全保證措施 ···········································3
1.3.1 設(shè)計(jì)制造方面的安全保證措施······································· 3
1.3.2 使用維護(hù)方面的安全保證措施······································· 4
第二章 剪叉式升降臺(tái)的應(yīng)用及其受力分析的討論························· 5
2.1剪叉式升降平臺(tái)的三種結(jié)構(gòu)形式······································· 5
2.2 雙鉸接剪叉式升降平臺(tái)機(jī)構(gòu)的位置參數(shù)計(jì)算··························· 6
2.3 雙鉸接剪叉式升降平臺(tái)機(jī)構(gòu)的動(dòng)力參數(shù)計(jì)算··························· 8
2.4 剪叉式升降平臺(tái)機(jī)構(gòu)設(shè)計(jì)時(shí)應(yīng)注意的問題······························9
2.5 針對(duì)性比較小實(shí)例：··················································· 9
2.6雙鉸接剪叉式升降平臺(tái)機(jī)構(gòu)中兩種液壓缸布置方式的分析比較········· 12
2.6.1問題的提出：······················································13
2.6.2兩種布置方式的分析和比較：······································14
2.6.3實(shí)例計(jì)算·························································15
第三章液壓傳動(dòng)系統(tǒng)的設(shè)計(jì)計(jì)算·········································· 20
3.1明確設(shè)計(jì)要求 制定基本方案：········································· 20
3.2制定液壓系統(tǒng)的基本方案·············································· 20
3.2.1確定液壓執(zhí)行元件的形式 ·······································20
3.2.2 確定液壓缸的類型················································22
3.2.3 確定液壓缸的安裝方式···········································22
3.2.4 缸蓋聯(lián)接的類型··················································22
3.2.5擬訂液壓執(zhí)行元件運(yùn)動(dòng)控制回路···································22
3.2.6液壓源系統(tǒng)························································22
3.3確定液壓系統(tǒng)的主要參數(shù)·············································· 23
3.3.1載荷的組成與計(jì)算：················································23
3.3.2初選系統(tǒng)壓力······················································25
3.3.3計(jì)算液壓缸的主要結(jié)構(gòu)尺寸········································26
3.3.4確定液壓泵的參數(shù)·················································28
3.3.5管道尺寸的確定 ··············································…30
3.3.6油箱容量的確定················································ 31
3.4液壓缸主要零件結(jié)構(gòu)、材料及技術(shù)要求································31
3.4.1缸體·····························································31
3.4.2活塞·····························································32
3.4.3活塞桿···························································33
3.4.4活塞桿的導(dǎo)向、密封和防塵·······································33
3.4.5液壓缸的排氣裝置················································34
3.4.6液壓缸安裝聯(lián)接部分的型式及尺寸································35
3.4.7繪制液壓系統(tǒng)原理圖··············································35
第四章 臺(tái)板與叉桿的設(shè)計(jì)計(jì)算 ···········································39
4.1確定叉桿的結(jié)構(gòu)材料及尺寸 ···········································39
4.2橫軸的選取···························································· 43
結(jié) 論································································· 44
致 謝································································· 45
參考文獻(xiàn)································································· 46
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