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山東大學(xué)畢業(yè)設(shè)計（論文）
摘要
根據(jù)電機的工作環(huán)境選擇電動機類型，采用臥式安裝，防護式電機，鼠籠式三相異步電動機。選擇三級減速，先是一級帶減速，再兩級齒輪減速。一級帶傳動，它具有緩沖、吸振、運行平穩(wěn)、噪聲小、合過載保護等優(yōu)點，并安裝張緊輪。兩級齒輪減速，齒輪傳動可用來傳遞空間任意兩軸間的運動和動力，并具有功率范圍大，傳動效率高，傳動比準(zhǔn)確，使用壽命長，工作安全可靠等特點。動力由電動機輸出,通過減速系統(tǒng)傳動,把動力輸入到執(zhí)行機構(gòu)。由于傳動系統(tǒng)作 的是回轉(zhuǎn)運動,而鋼筋切斷機的執(zhí)行機構(gòu)需要的直線往復(fù)運動,為了實現(xiàn)這種轉(zhuǎn)換,可以采用曲柄滑塊機構(gòu),盤行凸輪移動滾子從動件機構(gòu),齒輪齒條機構(gòu)。本課題采用曲柄滑塊機構(gòu)作為本機械的執(zhí)行機構(gòu)?。
關(guān)鍵詞 切斷 建筑 鋼筋 齒輪 曲柄滑塊
Abstract
According to the working environment choice the type of electric motors, using horizontal installation, protection of the electrical, squirrel-cage three-phase asynchronous motor. Option three slowdown,
first level belt slowdown, followed by the secondary gear deceleration. First level with the introduction of automated, because it has a buffer, absorb shock and operate smoothly, small noise, and can protect the over loading. Then introduce a secondary gear deceleration slowdown, because gear transmission can be used to transmit arbitrary space between the two axis movement and momentum, and the scope of power, transmission efficient transmission accurately, long using life, such as safe and reliable character. Power output by electric motors through slow down transmission system to import power to the executive body. As the system make rotation movement, The steel cutting machine needs the back and forth straight line sport ,in order to achieve this transformation, we can use c slider-crank institutions or gear and rack. I decided to consider realistic conditions using slider-crank as the executing machinery.
Keywords cutting architectural reinforcing steel dar gear slider-crank
目錄
1.引言 3
1．1 概述 3
1．2 題目的選取 4
1．3 鋼筋切斷機的工作原理 4
2 電機選擇 4
2.1切斷鋼筋需用力計算 5
2.2 功率計算 5
3. 傳動結(jié)構(gòu)設(shè)計 5
3.1 基本傳動數(shù)據(jù)計算 5
3.2 帶傳動設(shè)計 6
3.3 齒輪傳動設(shè)計 8
3.4 軸的校核 15
3.5 鍵的校核 21
3.6 軸承的校核 22
4 鋼筋切斷機的摩擦、磨損和潤滑 24
參 考 文 獻 25
結(jié)束語 26
致謝 27