中文摘要

本課題設(shè)計(jì)建筑上的臥式鋼筋切斷機(jī)的工作原理是：采用電動(dòng)機(jī)經(jīng)一級(jí)三角帶傳動(dòng)和二級(jí)齒輪傳動(dòng)減速后,帶動(dòng)曲軸旋轉(zhuǎn),曲軸推動(dòng)連桿使滑塊和動(dòng)刀片在機(jī)座的滑道中作往復(fù)直線運(yùn)動(dòng),使活動(dòng)刀片和固定刀片相錯(cuò)而切斷鋼筋。
根據(jù)電機(jī)的工作環(huán)境選擇電動(dòng)機(jī)類型，采用臥式安裝，防護(hù)式電機(jī)，鼠籠式三相異步電動(dòng)機(jī)。選擇三級(jí)減速，先是一級(jí)帶減速，再兩級(jí)齒輪減速。一級(jí)帶傳動(dòng)，它具有緩沖、吸振、運(yùn)行平穩(wěn)、噪聲小、合過載保護(hù)等優(yōu)點(diǎn)，并安裝張緊輪。兩級(jí)齒輪減速，齒輪傳動(dòng)可用來傳遞空間任意兩軸間的運(yùn)動(dòng)和動(dòng)力，并具有功率范圍大，傳動(dòng)效率高，傳動(dòng)比準(zhǔn)確，使用壽命長(zhǎng)，工作安全可靠等特點(diǎn)。動(dòng)力由電動(dòng)機(jī)輸出,通過減速系統(tǒng)傳動(dòng),把動(dòng)力輸入到執(zhí)行機(jī)構(gòu)。由于傳動(dòng)系統(tǒng)作 的是回轉(zhuǎn)運(yùn)動(dòng),而鋼筋切斷機(jī)的執(zhí)行機(jī)構(gòu)需要的直線往復(fù)運(yùn)動(dòng),為了實(shí)現(xiàn)這種轉(zhuǎn)換,可以采用曲柄滑塊機(jī)構(gòu),盤行凸輪移動(dòng)滾子從動(dòng)件機(jī)構(gòu),齒輪齒條機(jī)構(gòu)。本課題采用曲柄滑塊機(jī)構(gòu)作為本機(jī)械的執(zhí)行機(jī)構(gòu) 。

關(guān)鍵詞  切斷 建筑  鋼筋  齒輪  曲柄滑塊
 

外文摘要

Title  lie type steel cutting machines’designing                                
                                                     
Abstract
This article introduces a kind of architectural lie type steel cutting machines. Its operating principles are: It use electric motors level triangle belt transmission and secondary gear transmission to slowdown. Then, it drives the crank rotate, The crank connected to slide block and moving blades in the slippery way make the back and forth straight line sport, makes the moving blades and the fixed blade shear and cut steel.  
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…………………………………………………………………………………… 1
1.1概述…………………………………………………………………………………………1
1.2題目的選取……………………………………………………………………………… 2
1.3鋼筋切斷機(jī)的工作原理…………………………………………………………………2
2 電機(jī)的選擇…………………………………………………………………………2
2.1 鋼筋切斷機(jī)需用力計(jì)算 …………………………………………………… 2
2.2 功率計(jì)算 ……………………………………………………………… 3
3 傳動(dòng)結(jié)構(gòu)設(shè)計(jì) ………………………………………………………………… 3
3.1 基本傳動(dòng)設(shè)計(jì)計(jì)算………………………………………………………… 3
3.2帶傳動(dòng)設(shè)計(jì)……………………………………………………………………5
3.3齒輪傳動(dòng)設(shè)計(jì) ………………………………………………………………… 6
3.4軸的校核 ……………………………………………………………………14
3.5 鍵的校核…………………………………………………………………… 22
3.6軸承的校核 ………………………………………………………………… 23
4 鋼筋切斷機(jī)的摩擦 磨損和潤(rùn)滑 ………………………………………………… 25
結(jié)論 ………………………………………………………………………………… 27
致謝 ………………………………………………………………………………… 28
參考文獻(xiàn)………………………………………………………………………………29

題目的選取

本次畢業(yè)設(shè)計(jì)的任務(wù)是臥式鋼筋切斷機(jī)的設(shè)計(jì)。要求切斷鋼筋的最大直徑14mm，切斷速度為15次/分。
在設(shè)計(jì)中通過計(jì)算和考慮實(shí)際情況選則合適的結(jié)構(gòu)及參數(shù)，從而達(dá)到設(shè)計(jì)要求，同時(shí)盡可能的降低成本，這也是一個(gè)綜合運(yùn)用所學(xué)專業(yè)知識(shí)的過程。

說明書.doc (30頁)
開題報(bào)告.doc
目錄.doc
任務(wù)書.doc
摘要.doc
A3齒輪二.dwg
A3齒輪一.dwg
A3導(dǎo)桿.dwg
A3二軸.dwg
A3飛輪.dwg
A1機(jī)架圖.dwg
A2三軸.dwg
受力分析圖.dwg
A2一軸.dwg
A2原理圖.dwg
A3張緊輪.dwg
A0總裝圖.dwg