畢業(yè)論文-臺(tái)式電風(fēng)扇搖頭裝置設(shè)計(jì)(存儲(chǔ)版)
【正文】 圖 左右擺動(dòng)方案三立體圖 該方案在方案改變了四桿機(jī)構(gòu)的機(jī)架及各桿的位置，消除了其自轉(zhuǎn)，達(dá)到扇葉隨搖桿左右擺動(dòng)的效果。 表一 電風(fēng)扇擺頭的機(jī)構(gòu)選形 0 功能 執(zhí)行機(jī)構(gòu) 工藝動(dòng)作 執(zhí)行機(jī)構(gòu) 設(shè)計(jì)矩陣 左右擺動(dòng) 連桿機(jī)構(gòu) 急進(jìn)急回 往復(fù)運(yùn)動(dòng) 齒輪機(jī)構(gòu) 連桿機(jī)構(gòu) A1 上下擺動(dòng) 連桿機(jī)構(gòu) 扇形往復(fù)運(yùn)動(dòng) 連桿機(jī)構(gòu) ～ A2 電風(fēng)扇 左右 擺頭機(jī)構(gòu) 考慮到用電動(dòng)機(jī)驅(qū)動(dòng)、而且空間比較狹小，又需要的三個(gè)基本動(dòng)作和高傳動(dòng)比要求。 ③ 風(fēng)扇需要轉(zhuǎn)換 傳動(dòng) 軸線和改變 轉(zhuǎn)速 ，因此需要設(shè)計(jì)相應(yīng)的齒輪系機(jī)構(gòu)。 2. 設(shè)計(jì)要求 ① 電風(fēng)扇搖頭機(jī)構(gòu)至少包括連桿機(jī)構(gòu)、蝸輪蝸 桿機(jī)構(gòu) 和齒輪傳動(dòng)機(jī)構(gòu)三種機(jī)構(gòu)。、俯仰角度 φ＝ 15176。 3. 功能分解 電風(fēng)扇的 工作原理是將電風(fēng)扇的送風(fēng)區(qū)域進(jìn)行周期性變換，達(dá)到增大送風(fēng)區(qū)域的目的。 的 要求 下，第 4 頁(yè) 共 14 頁(yè) 盡量保持運(yùn)動(dòng)的平穩(wěn)轉(zhuǎn)換和減小機(jī)構(gòu)間的摩擦。 電風(fēng)扇上下仰俯機(jī)構(gòu) 考慮到能實(shí)行仰俯運(yùn)動(dòng)，事先計(jì)劃使用（凸輪機(jī)構(gòu)） a11 設(shè)計(jì)仰俯機(jī)構(gòu)，但第 5 頁(yè) 共 14 頁(yè) 由于電扇的機(jī)殼大小有限，并且凸輪只常使用在低負(fù)載的傳動(dòng)過(guò)程，假如當(dāng)電風(fēng)扇的機(jī)頭被某重物壓住，則很容易損壞凸輪。 最終方案： 左右擺動(dòng)方案三 與 上下擺動(dòng)的結(jié)合。其中 Z3為內(nèi)嚙合齒輪， Z1=18， m1=1； Z2=33， m2=1，第 9 頁(yè) 共 14 頁(yè) 39。 蝸輪蝸桿各參數(shù)和校核 由于動(dòng)力的傳遞方向需要變向，同時(shí)也需要將轉(zhuǎn)速降低，所以我們?cè)谠O(shè)計(jì)中使用了蝸輪蝸桿減速器。 第 13 頁(yè) 共 14 頁(yè) 三、小結(jié) 經(jīng)過(guò) 1 周的機(jī)械設(shè)計(jì)課程設(shè)計(jì)，讓我認(rèn)識(shí)和了解到，機(jī)械設(shè)計(jì)必須認(rèn)真，細(xì)致，不能有任何的馬虎。s largest virgin forest, and known for its spring and ecological environment, Arxan is marveled at by many tourists as the purest land on earth. You cannot miss out the Autumn of Arxan. It is definitely the best with brightlycolored scenery full of emotions. Autumn in the northern part of the country es earlier than the South. A September rain followed by the footprints of Autumn brings more colors to the once emerald green mountain and blooming grassland. Shutterbugs flock to see for themselves the marvel of splendid colors around the mountains and waters, many of whom have travel a long 第 14 頁(yè) 共 14 頁(yè) distance and even camp here only to capture a moment of the nature wonder. The silver birch turns golden, while the larch is still proudly green. You will find yourself drowned in the intoxicating red of the wild fruits as well as the glamour of flowers in full blown. And your heart will be lingering on the woods as it39。s Day! in shops, hotels and restaurants. But few young women will mark the festival with their boyfriends, or take part in traditional activities to pray for cleverness. 。 四、參考文獻(xiàn) （ 1） 裘建新 . 機(jī)械原理課程設(shè)計(jì)指導(dǎo)書 . 北京 高等教育出版社 2021 （ 2） 申永勝 . 機(jī)械 原理教程（第 2版） . 北京 清華大學(xué)出版社 2021 （ 3） 孫恒 . 機(jī)械原理第七版 .高等教育出版社 請(qǐng)您刪除一下內(nèi)容， O(∩ _∩ )O謝謝?。?！ Many people have the same mixed feelings when planning a trip during Golden Week. With heaps of time, the sevenday Chinese National Day holiday could be the best occasion to enjoy a destination. However, it can also be the easiest way to ruin how you feel about a place and you may bee more fatigued after the holiday, due to battling the large crowds. During peak season, a dream about a place can turn to nightmare without careful planning, especially if you travel with children and older people. As most Chinese people will take the holiday to visit domestic tourist destinations, crowds and busy traffic are inevitable at most places. Also to be expected are increasing transport and acmodation prices, with the possibility that there will be no rooms available. It is also
畢業(yè)設(shè)計(jì)相關(guān)推薦
鄂ICP備17016276號(hào)-1