抽油機(jī)機(jī)械制動(dòng)機(jī)構(gòu)設(shè)計(jì).pdf

1、摘要電子機(jī)械制動(dòng)系統(tǒng)是利用電機(jī)驅(qū)動(dòng)制動(dòng)部件，取代傳統(tǒng)的液壓或氣動(dòng)執(zhí)行部件的制動(dòng)系統(tǒng)。液壓和氣壓制動(dòng)系統(tǒng)存在自身的缺點(diǎn)，電子機(jī)械制動(dòng)系統(tǒng)擁有效率高、反應(yīng)靈敏、制動(dòng)性能穩(wěn)定等優(yōu)點(diǎn)，在汽車、機(jī)械等領(lǐng)域有取代傳統(tǒng)制動(dòng)系統(tǒng)的趨勢(shì)及廣闊的應(yīng)用前景。為提高無游梁式抽油機(jī)抽油桿的換向效率，本文以電子機(jī)械制動(dòng)系統(tǒng)為研究對(duì)象，通過系統(tǒng)建模、動(dòng)力學(xué)仿真及有限元分析等方法，設(shè)計(jì)出符合無游梁式抽油機(jī)抽油桿換向功能的電子機(jī)械制動(dòng)系統(tǒng)。針對(duì)所應(yīng)用機(jī)械制動(dòng)機(jī)構(gòu)的工作環(huán)

2、境及結(jié)構(gòu)特點(diǎn)，對(duì)課題背景及國(guó)內(nèi)外電子機(jī)械制動(dòng)的發(fā)展?fàn)顩r及研究成果進(jìn)行了解。為了課題研究的方便，本文的抽油機(jī)機(jī)械制動(dòng)機(jī)構(gòu)為無游梁式抽油機(jī)樣機(jī)所設(shè)計(jì)的。本文研究的主要內(nèi)容有：（a）根據(jù)電子機(jī)械制動(dòng)系統(tǒng)的原理提出抽油機(jī)機(jī)械制動(dòng)機(jī)構(gòu)的總體設(shè)計(jì)方案，進(jìn)行總體設(shè)計(jì)。并根據(jù)設(shè)計(jì)方案，對(duì)總體設(shè)計(jì)中的主要組成機(jī)構(gòu)或部件進(jìn)行計(jì)算和研究，確定機(jī)械制動(dòng)機(jī)構(gòu)中驅(qū)動(dòng)電機(jī)、轉(zhuǎn)換機(jī)構(gòu)、增力機(jī)構(gòu)及制動(dòng)形式。（b）在確定機(jī)構(gòu)中主要組成部件后，對(duì)其進(jìn)行具體設(shè)計(jì)包括摩擦片、增

3、力機(jī)構(gòu)、滾珠絲杠副及驅(qū)動(dòng)電機(jī)，并對(duì)整個(gè)機(jī)構(gòu)的部件進(jìn)行加工裝配。（c）完成機(jī)構(gòu)設(shè)計(jì)，對(duì)機(jī)構(gòu)進(jìn)行動(dòng)力學(xué)仿真，對(duì)制動(dòng)過程進(jìn)行動(dòng)力學(xué)仿真分析，獲取制動(dòng)過程中的關(guān)鍵信息如制動(dòng)盤的速度、制動(dòng)機(jī)構(gòu)的制動(dòng)力及制動(dòng)力矩等。同時(shí)對(duì)關(guān)鍵零部件根據(jù)其物理參數(shù)及功能進(jìn)行有限元分析確保其強(qiáng)度、形變、固有頻率符合機(jī)構(gòu)的要求。（d）最后對(duì)機(jī)構(gòu)進(jìn)行物理試驗(yàn)，保證真實(shí)的制動(dòng)效果符合預(yù)期，并采集到的關(guān)鍵數(shù)據(jù)和理論計(jì)算進(jìn)行對(duì)比，證明機(jī)構(gòu)設(shè)計(jì)的正確合理。關(guān)鍵詞：機(jī)械制動(dòng)機(jī)構(gòu)；增

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