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GQ50鋼筋切斷機(jī)結(jié)構(gòu)設(shè)計(jì)與運(yùn)動(dòng)仿真 潘林豐 （陜理工學(xué)院機(jī)械工程學(xué)院機(jī)自專業(yè)1008班，陜西 漢中 723003） 指導(dǎo)老師：賈吉林 【摘要】 鋼筋切斷機(jī)是把鋼筋切成所需長(zhǎng)度的專用機(jī)械,在大型建筑工地上的應(yīng)用非常廣泛。鋼筋切斷機(jī)分為機(jī)械傳動(dòng)和液壓傳動(dòng)兩種。機(jī)械傳動(dòng)式鋼筋切斷機(jī),工作時(shí)大都采用電動(dòng)機(jī)經(jīng)一級(jí)三角帶傳動(dòng)和三級(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。GQ50型鋼筋切斷機(jī)，其剪切運(yùn)動(dòng)是由一偏心輪連桿機(jī)構(gòu)完成的。但是由于切斷機(jī)機(jī)體內(nèi)腔狹小，在裝配曲軸連桿時(shí)比較困難。尤其是在使用中發(fā)生故障需要維修時(shí)，拆卸曲軸連桿更加不容易，給維修造成很大的不變，因此在不改變?cè)O(shè)備功能的情況下，我對(duì)曲軸連桿機(jī)構(gòu)做了一些改進(jìn)。改進(jìn)后的偏心輪結(jié)構(gòu)直接從機(jī)體的注冊(cè)孔中裝入和取出。而不必拆卸連桿，大大簡(jiǎn)化了裝配程序，減輕的工人的勞動(dòng)強(qiáng)度。同時(shí)也極大的方便了維修，還簡(jiǎn)化了零件的工藝過(guò)程，取得良好的經(jīng)濟(jì)效益。 【關(guān)鍵詞】：鋼筋切斷機(jī)；偏心輪；曲軸連桿機(jī)構(gòu) GQ50 reinforcing steel cutter structural design and movement simulation Pan Linfeng （Grade10,Class08,Major Mechanical Design，Manufacturing and Automation Dept.，Shaanxi University of Technology，Hanzhong 723003Shaanxi） Tutor：Jia Jilin Abstract Reinforcing steel cutting machine is used to cut the required length of steel machinery specialized for large construction sites in the application of very extensive. Reinforcing steel cutting machine into mechanical transmission and hydraulic transmission of two. Mechanical transmission reinforced cutting machine, working mostly used as a V-belt drive motor and gear drive slow down after three, driven crankshaft rotation, promoting the crankshaft and connecting rod to move the slider blade in the frame of the chute in a reciprocating linear motion So that the activities of the blade and a fixed blade and cut off the wrong steel. GQ50-steel cutter, whose movement from one type of the crankshaft linkage to complete. However, due to cut off the small inner cavity of the body, in the assembly when the crankshaft link more difficult. Especially in the use of a fault in need of repair, demolition crank link more difficult to repair a big change, so do not change the function of the equipment under the circumstances, we have made some improvement to crank linkage. The improved structure of the cam directly from the body of the aircraft registered in the hole and packed out. Without dismantling the link, greatly simplifies the assembly, reducing labor intensity of workers. But also greatly facilitate the maintenance, has also simplified the process of parts and achieved good economic returns. Key words: steel cutting machine, the structure design, proe, virtual assembling, movement simulation 目錄 1 緒論 1 1.1 鋼筋切斷機(jī)的研究現(xiàn)狀 1 1.2 本次設(shè)計(jì)的任務(wù) 2 1.3 本次設(shè)計(jì)目的與意義 3 2 鋼筋切斷機(jī)的總體設(shè)計(jì) 4 2.1 鋼筋切斷機(jī)的基本介紹 4 2.2 GQ50型鋼筋切斷機(jī)的改良方向 5 2.3鋼筋切斷機(jī)的工作原理 6 2.4 鋼筋切斷機(jī)的基本結(jié)構(gòu) 6 2.4.1 GQ50型鋼筋切斷機(jī)主傳動(dòng)機(jī)構(gòu)的設(shè)計(jì)方案的確定 6 2.4.2 GQ50型鋼筋切斷機(jī)主傳動(dòng)機(jī)構(gòu)設(shè)計(jì)的基本思路 7 2.4.3 GQ50型鋼筋切斷機(jī)主傳動(dòng)機(jī)構(gòu)設(shè)計(jì)的方法 7 3 方案設(shè)計(jì)比較 8 3.1驅(qū)動(dòng)裝置方案選擇 8 3.1.1液壓驅(qū)動(dòng) 8 3.1.2 手動(dòng)驅(qū)動(dòng) 8 3.1.3 電機(jī)驅(qū)動(dòng) 8 3.2傳動(dòng)裝置方案選擇 9 3.2.1 液壓傳動(dòng) 9 3.2.2 帶傳動(dòng) 9 3.2.3 齒輪傳動(dòng) 9 3.2.4 組合傳動(dòng) 9 3.3執(zhí)行裝置方案選擇 9 3.3.1曲柄滑塊機(jī)構(gòu) 9 3.3.2齒輪齒條機(jī)構(gòu) 10 3.3.3凸輪機(jī)構(gòu) 10 4 鋼筋切斷機(jī)傳動(dòng)設(shè)計(jì) 12 4.1電動(dòng)機(jī)的選擇 12 4.2 基本傳動(dòng)數(shù)據(jù)計(jì)算 12 4.2.1傳動(dòng)比的分配 12 4.2.2 各軸的運(yùn)動(dòng)及動(dòng)力參數(shù)分析 13 4.3 帶傳動(dòng)的設(shè)計(jì) 14 4.3.1帶型的選擇 14 4.3.2帶輪基準(zhǔn)直徑的確定 14 4.3.3帶速的確定 15 4.3.4中心距、帶長(zhǎng)及包角的確定 15 4.3.5確定帶的根數(shù) 16 4.4 齒輪傳動(dòng)的設(shè)計(jì) 16 4.4.1選材料、確定初步參數(shù) 16 4.4.2齒面疲勞強(qiáng)度計(jì)算 18 4.4.3齒根抗彎疲勞強(qiáng)度驗(yàn)算 20 4.5 軸的設(shè)計(jì) 21 4.6鍵的選取與校核 22 4.6.1鍵的選取 22 4.6.2鍵強(qiáng)度的校核 22 4.7軸承的組合設(shè)計(jì) 23 4.8連桿的設(shè)計(jì) 24 4.9切斷鋼筋需用力計(jì)算 24 4.10減速器附件的選擇 25 5 鋼筋切斷機(jī)的摩擦、磨損和潤(rùn)滑 26 6 機(jī)械式鋼筋切斷機(jī)調(diào)整及保養(yǎng)的使用 27 6.1 鋼筋切斷機(jī)的使用調(diào)整 27 6.2 鋼筋切斷機(jī)的保養(yǎng) 28 6.3鋼筋切斷機(jī)的一般安全的規(guī)定 29 7 建模與仿真 30 7.1 三維軟件的介紹 30 7.2 鋼筋切斷機(jī)的建模與仿真 31 7.2.1 鋼筋切斷機(jī)主要零件的三維建模 31 7.2.2 GQ50型鋼筋切斷機(jī)主傳動(dòng)機(jī)構(gòu)的裝配與仿真 40 致謝 43 參考文獻(xiàn) 44 - IV - 第 5頁(yè) 共44 頁(yè)