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輪胎側(cè)面撞擊試驗(yàn)裝置機(jī)電系統(tǒng)畢業(yè)論文-免費(fèi)閱讀

  

【正文】 同時(shí)孫老師還為我提出了一些富于創(chuàng)造性的建議,孫老師一絲不茍的作風(fēng),嚴(yán)謹(jǐn)求實(shí)的態(tài)度使我深受感動(dòng),沒(méi)有這樣的幫助關(guān)懷和熏陶,我不會(huì)這么順利的完成畢業(yè)設(shè)計(jì)。本次畢業(yè)設(shè)計(jì)是在我的導(dǎo)師孫旭光老師的親切關(guān)懷和悉心指導(dǎo)下完成的。我今天認(rèn)真地進(jìn)行畢業(yè)設(shè)計(jì),學(xué)會(huì)腳踏實(shí)地地邁開這一步,就是為了明天能穩(wěn)健地在社會(huì)大潮中奔跑打下堅(jiān)實(shí)的基礎(chǔ)。(6)操作者離開機(jī)器應(yīng)把總電源和氣源關(guān)閉結(jié) 論經(jīng)過(guò)三個(gè)多月的長(zhǎng)時(shí)間努力,我的畢業(yè)設(shè)計(jì)終于順利完成了。(6)定期檢查油杯附近空氣凈化器內(nèi)的凝結(jié)物。在進(jìn)行任何維修保養(yǎng)的工作之前,應(yīng)斷開電源并使電源插頭在維修.人員的監(jiān)控范圍之內(nèi),同時(shí)關(guān)掉氣源并將氣體開關(guān)推到關(guān)閉(Off)位置且踏下大氣缸腳踏和扭轉(zhuǎn)夾緊氣缸控制手柄。~,接一個(gè)配入器。 分水濾氣器:AF500010 油霧器:AL500010 消聲器:配于三位五通的閥排氣口、快速排氣閥的排氣口處,起消聲、濾塵作用。當(dāng)轉(zhuǎn)角或伸縮達(dá)到要求后,鎖緊螺釘,橫臂即被鎖定,可以進(jìn)入下一級(jí)操作環(huán)節(jié)。變頻器在出廠的時(shí)候,所有的功能碼都已設(shè)定。接觸器用于電動(dòng)機(jī)在工頻電網(wǎng)和變頻器之間的切換,保證變頻器的輸出端不會(huì)接到工頻電網(wǎng)上去,以免損壞變頻器.選擇適合的電抗器與變頻器配套使用,既可以抑制諧波電流,降低變頻器系統(tǒng)所產(chǎn)生的諧波總量,調(diào)高變頻器的功率因素,又可以抑制來(lái)自電網(wǎng)的浪涌對(duì)變頻器的沖擊,保護(hù)變頻器、降低電動(dòng)機(jī)噪聲。異步電動(dòng)機(jī)調(diào)速運(yùn)轉(zhuǎn)時(shí),通常由變頻器主電路給電動(dòng)機(jī)提供低壓調(diào)頻電源。儲(chǔ)氣罐有立式和臥式兩種形式,使用時(shí)數(shù)臺(tái)空壓機(jī)可以合用一個(gè)儲(chǔ)氣罐,也可以每臺(tái)單獨(dú)配用,儲(chǔ)氣罐通常安裝在基礎(chǔ)上。開門時(shí),電磁鐵K4得電 壓縮空氣從活塞上部輸入, 活塞桿下降,首先整個(gè)門下降, 打開門的閉鎖, 然后開始門的開啟動(dòng)作。設(shè)d/D=~ D=(~) 式(7) 式中 F=1000N;工作壓力P=1MPa;?。?D=~由缸的內(nèi)徑范圍應(yīng)選用 QGBQ系列氣缸,且取D=63mm。(3).正常安裝時(shí),氣源進(jìn)口處要設(shè)置油霧器,以利工作中潤(rùn)滑,氣缸的合理潤(rùn)滑尤為重要。為了降低噪聲,在排氣口安裝上了消聲器??傮w氣壓系統(tǒng)原理控制圖如下:圖10:裝置氣壓系統(tǒng)控制原理圖如圖所示,整個(gè)氣壓系統(tǒng)共有4條支路,分別為沖擊氣缸回路、工作臺(tái)夾緊氣缸回路、立柱后傾氣動(dòng)控制和氣動(dòng)門開關(guān)控制。正反轉(zhuǎn)控制通過(guò)FWD、REV、CM的開關(guān)信號(hào)來(lái)進(jìn)行。變頻器輸出變頻電壓(U、V、W),經(jīng)熱繼電器RJ1接到負(fù)載電動(dòng)機(jī)上。操作時(shí)候需要經(jīng)過(guò)思考決定下一步的動(dòng)作。因此, 在活塞上移時(shí),門在水平分力的作用下關(guān)閉。δ——門開啟后,門內(nèi)板到機(jī)身側(cè)壁的距離50mmα——AA′連線與車門處于關(guān)閉位置時(shí)的夾角其中α與B、B、t和δ之間的關(guān)系是: 式(4)則α=176。一因此, 要改變?chǔ)さ拇笮? 最有效的方法就是調(diào)整支撐臂的安裝角度θ。根據(jù)四桿機(jī)構(gòu)的運(yùn)動(dòng)規(guī)律, 車門在移動(dòng)過(guò)程中,它們的軌跡均為圓弧。這種門密封性好,門的設(shè)計(jì)與裝置的設(shè)計(jì)能很好的一致起來(lái), 使整個(gè)裝置的造型更加美觀,同時(shí)門是外擺式的,這樣可以節(jié)省內(nèi)部空間是整個(gè)裝置結(jié)構(gòu)更加緊致。mm范圍內(nèi),這個(gè)范圍是在汽車輪胎垂直撞擊到物體上并且速度減為0的前提下計(jì)算出的結(jié)果,顯然實(shí)際情況下達(dá)不到這么大的撞擊功。在根據(jù)所需的沖擊功選定沖擊氣缸的缸徑后, 沖擊能量的大小還可以通過(guò)改變氣源壓力、,工作行程及控制管路的長(zhǎng)短適當(dāng)加以調(diào)整。若受加工條件限制, 也可加工成60176。當(dāng)活塞開始沖擊時(shí), 排氣孔關(guān)閉, 腔室中的壓縮空氣不向外泄漏。表1:Y160M4型電動(dòng)機(jī)參數(shù)技術(shù)數(shù)據(jù)表型號(hào)Y160M4額定功率(KW)11滿載轉(zhuǎn)速(r/min)1460同步轉(zhuǎn)速(r/min)1500級(jí)數(shù)4額定電流(A)額定轉(zhuǎn)矩(N選擇Y系列異步電機(jī)。90176。各部分結(jié)構(gòu)如下:(1)機(jī)身的設(shè)計(jì)機(jī)身由底座、轉(zhuǎn)盤、立柱、沖擊桿、踏腳控制器、手動(dòng)控制器等組成。通過(guò)本次設(shè)計(jì)誕生的設(shè)備將是完全具備實(shí)際使用價(jià)值的。二是在輪胎脫圈、老化、透氣性及道路危險(xiǎn)性試驗(yàn)等方面的要求也較以前嚴(yán)格。關(guān)鍵詞:輪胎側(cè)面; 外力撞擊; 測(cè)試 畢業(yè)設(shè)計(jì)(論文)外文摘要Electromechanical system design oftires side impact test deviceAbstract: In recent years, more and more consumer begin to pay close attention to the car driving safety problems with the tires manufacturers, sales units and users to automobile tires pay more and more attention to the safety requirements. Car professionals know, tire surface is the entire tire side the most vulnerable parts, and once the damage will be difficult to repair. According to our research, the industry at present is lack of quantitative inspection equipment to used in tire side impact of safety testing. For many cars safety operation and the correct maintenance bring big problem. According to the important issue of the car runs security, this topic put forward the tire side impact test device for mechanical and electrical system design and research tasks. This design subject involves the purpose of new products is expected that provide a tire side impact resistance of the external force ability test device to tire manufacturers, 4S repair shops and related research unit, and expect to finish all kinds of the equipment on car tires resistance force ability of product profile analysis and parison, for many of the manufacturers, the user to provide maintenance a set of scientific side of the status identification equipment tires. so this topic and the design of the product, innovative products, for many vehicles running safety and in side impact study of tire damage all have the basic theoretical and practical significance.The design of the main content of tire is side impact experiment device overall layout, transmission scheme parison, pressure control system, electrical control system and safety protection system analysis and design. Design is fully considering to the existing of tire installed, keep the original basic tire installed function, Increases the speed variable functions work dish(Variable frequency speed regulation),wishbone can adjustable and rotate, impact stem impact tire side function, column can tilt back function, pneumatic door protection function and so on. Design content more prehensive coverage of the new product design requirements
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