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1、摘要摘 要本設(shè)計(jì)為200T液壓機(jī)液壓系統(tǒng)。液壓系統(tǒng)主要由主缸運(yùn)動(dòng)、頂出缸運(yùn)動(dòng)等組成。本文重點(diǎn)介紹了液壓系統(tǒng)的設(shè)計(jì)。通過具體的參數(shù)計(jì)算及工況分析，制定總體的控制方案。經(jīng)方案對(duì)比之后，擬定液壓控制系統(tǒng)原理圖。液壓系統(tǒng)選用插裝閥集成控制系統(tǒng)，插裝閥集成控制系統(tǒng)具有密封性好，通流能力大，壓力損失小等特點(diǎn)。為解決主缸快進(jìn)時(shí)供油不足的問題，主機(jī)頂部設(shè)置補(bǔ)油油箱進(jìn)行補(bǔ)油。主缸的速度換接與安全行程限制通過行程開關(guān)來控制；為了保證工件的成型質(zhì)量，液壓系統(tǒng)中設(shè)置保壓回路，通過保壓使工件穩(wěn)定成型；為了防止產(chǎn)生液壓沖擊，系統(tǒng)中設(shè)有泄壓回路，確保設(shè)備安
2、全穩(wěn)定的工作；本系統(tǒng)應(yīng)用的電氣控制系統(tǒng)，便于對(duì)系統(tǒng)進(jìn)行控制，可以實(shí)現(xiàn)半自動(dòng)控制，可以實(shí)現(xiàn)過載保護(hù)，保證系統(tǒng)正常運(yùn)行。此外，本文對(duì)液壓站進(jìn)行了總體布局設(shè)計(jì)，對(duì)重要液壓元件進(jìn)行了結(jié)構(gòu)、外形、工藝設(shè)計(jì)。通過液壓系統(tǒng)壓力損失和溫升的驗(yàn)算，本文液壓系統(tǒng)的設(shè)計(jì)可以滿足壓力機(jī)順序循環(huán)的動(dòng)作要求，能夠?qū)崿F(xiàn)塑性材料的鍛壓、沖壓、冷擠、校直、彎曲等成型加工工藝。關(guān)鍵詞：液壓系統(tǒng)；液壓機(jī)；畢業(yè)設(shè)計(jì)IIIAbstracAbstractThispaperdesignforthebolsterpressofhydraulicmachines.Mainfra
3、memainlybythemotionofmastercylinderandthemotionofcylinderheadoutofcomponentsetc.Thispaperfocusesonthehydraulicsystemdesign.Throughspecificparametersandhydraulicmechanicsituationanalyzes,formulationofamastercontrolprogram.Bycontrast,developedhydrauliccontrolsystemdiag
4、ram.Hydraulicsystemsusecartridgevalveintegratedcontrolsystem,integratedcartridgevalvecontrolsystemhasgoodsealing,flowcapacity,smallpressurelosscharacteristicsetc.Tosolvethemastercylinderexpressenteredtheshortageofoilsupplyinthetopofthemainframeinstalledoiltank.Master
5、cylinderforthespeedofaccessrestrictionsandsecuritythroughthetripexchangingtocontrolswitches.Toensurethequalityofthework-piecemolding,inthehydraulicsysteminstalledpackingloopthroughpackingwork-piecestabilitymolding;Topreventhydraulicshocks,pressurereliefsystemwithaloo
6、ptoensurethatthisequipmentcanbeasafeandstablework.Thissystemapplicateelectricitycontrolsystem,tofacilitatethesystemofcontrol,wecanachievesemi-automaticcontrolandachieveoverloadprotection,ensurenormaloperationsystem.Inaddition,thepaperhydraulicstationontheoveralllayou
7、tofthekeycomponentsofthehydraulicstructure、shape、techniqueforaspecificdesign.Bythelossofhydraulicsystempressureandtemperaturechecked.Hydraulicsystemisdesignedtomeetthehydraulicactionsequenceandcyclerequirementscanbeachievedbyforgingplasticmaterials,stamping,coldextru
8、sion,straightening,bending,andothermoldingprocesses.KeyWords:hydraulicsystem,bolsterpress,graduationdesignIII目錄目 錄摘 要IAbstractII1緒
