【正文】 編號(hào)： 畢業(yè)設(shè)計(jì)（論文） 說明 書 題 目： 切紙機(jī)壓紙機(jī)構(gòu)的結(jié)構(gòu)設(shè)計(jì) 學(xué) 院： 機(jī)電工程學(xué)院 專 業(yè)： 機(jī)械電子工程 學(xué)生姓名 ： 學(xué) 號(hào)： 指 導(dǎo)教師單位： 機(jī)械電子系 姓 名 ： 彭曉楠 職 稱： 副教授 題目類型 ： ? 理論研究 ?實(shí)驗(yàn)研究 ?工程設(shè)計(jì) ?工程技術(shù)研究 ?軟件開 發(fā) 2021 年 05 月 20 日 摘 要 本次畢業(yè)設(shè)計(jì)的課題是壓紙機(jī)構(gòu)的設(shè)計(jì)。在選定畢設(shè)課題后，我進(jìn)行了方案的擬定。初步擬定了兩個(gè)方案，其一是用絲杠傳遞壓力進(jìn)行 設(shè)計(jì)的壓紙機(jī)構(gòu)，其二是采用連桿傳遞壓力而設(shè)計(jì)的壓紙機(jī)構(gòu)。但是本次設(shè)計(jì)要求壓紙的最大壓力為 35KN，所以采用絲杠傳遞動(dòng)力會(huì)使得整個(gè)機(jī)構(gòu)顯得很大，成本也會(huì)提高。最終確定了使用連桿傳遞壓力，而采用液壓系統(tǒng)提供動(dòng)力和壓紙的速度，這樣整個(gè)機(jī)構(gòu)就不會(huì)太大，成本大大降低，而且能夠高效的工作。 本次課題設(shè)計(jì)的壓紙機(jī)構(gòu)的工作原理是：通過電動(dòng)機(jī)帶動(dòng)液壓泵運(yùn)動(dòng)，液壓泵在液壓系統(tǒng)中產(chǎn)生動(dòng)力通過液壓系統(tǒng)使液壓缸的液壓缸進(jìn)行伸縮運(yùn)動(dòng)，液壓系統(tǒng)提供的運(yùn)動(dòng)和力通過連桿傳遞到壓紙部件，從而實(shí)現(xiàn)壓紙機(jī)構(gòu)壓紙和壓紙后的退回工作。而壓紙機(jī)構(gòu)的構(gòu)成 為：壓紙架，連接壓紙架與連桿的連接件，底板小底板，用于固定的各軸，滑塊以及把滑塊和連桿連接的軸及軸承，連桿能在滑塊中運(yùn)動(dòng)。本文中對(duì)于各結(jié)構(gòu)件進(jìn)行了結(jié)構(gòu)設(shè)計(jì)、尺寸設(shè)計(jì)和材料的選擇，完成尺寸和機(jī)構(gòu)設(shè)計(jì)后，對(duì)承受壓力較為敏感的零件進(jìn)行了校核，最終證明整個(gè)機(jī)構(gòu)符合強(qiáng)度和剛度要求，最后編制了重要零件的加工工藝。 最后是液壓系統(tǒng)的設(shè)計(jì)，根據(jù)要求對(duì)液壓系統(tǒng)進(jìn)行設(shè)計(jì)。選定各種液壓元件后繪制了液壓系統(tǒng)圖。然后就是對(duì)各種元件的校核，結(jié)果證明符合要求。這樣就完成了整個(gè)設(shè)計(jì)。 關(guān)鍵詞 :壓紙機(jī)構(gòu) ； 液壓系統(tǒng) ； 壓紙部件 ； 連桿 ； 連接件 Abstract The graduation project is the subject of the platen mechanism design. Albert located at the selected topic, I did a program development. Initially developed two programs, one of which is designed with a delivery pressure screw platen mechanism, and the second is the use of rod designed transmit pressure platen agency. However, this design requires platen maximum pressure of 35KN, so the use of screw transmission of power will make the entire anization bees large, the cost will increase. Ultimately determine the use of link transmit pressure, while the use of hydraulic systems provide power and speed of the platen so that the entire anization will not be too large, greatly reduce the cost, but also to efficient work. The topic of the platen mechanism designed working principle is: the hydraulic pump driven by a motor movement, the pump in the hydraulic system, hydraulic system to generate power by the hydraulic cylinder for telescopic movement of the hydraulic cylinder, the hydraulic system of motion and force by connecting transmitted to the platen unit lever, enabling anizations platen platen and the platen returned after work. The mechanism is constituted by the platen: a platen holder, the platen frame and the connecting rod connecting member, the small base plate, for fixing each axis, the slider and the slider and the axis of the connecting rod and bearing, even rod in the slider movement. Herein for structural parts of the structural design, size design and material selection, dimensions and mechanical design, after the pletion of pressure sensitive parts of the check, that the mechanism in accordance with the final strength and stiffness requirements, the final preparation of important parts of the process. Finally, the design of the hydraulic system, the hydraulic system according to the design requirements. After various hydraulic ponents selected hydraulic system diagram drawn. Then check that the various ponents, the results demonstrate pliance with requirements. This pletes the entire : Platen mechanism Hydraulic system Platen assembly Keywords: Platen mechanism； Hydraulic system； Platen assembly； connecting rod； Connections 目 錄 引言 ...............................................................................................................1 1 切紙機(jī)壓紙機(jī)構(gòu)的方案確定 ....................................................................2 設(shè)計(jì)方案的確定 ................................................................................................................. 2 ........................................................................................................... 2 ............................................................................................................... 2 ............................................................................................................................... 3 ........................................................................................................................... 3 2 壓紙機(jī)構(gòu)設(shè)計(jì) ...........................................................................................3 設(shè)計(jì)的原始參數(shù) ................................................................................................................. 3 設(shè)計(jì)時(shí)考慮的問題 ............................................................................................................. 3 液壓壓紙機(jī)構(gòu)的兩種方案 ................................................................................................. 4 ............................................................................... 4 ........................................................................................... 5 壓紙部件的設(shè)計(jì) ................................................................................................................. 5 連接件強(qiáng)度校核 ............................................................................................................... 14 傳動(dòng)部件的設(shè)計(jì) ............................................................................................................... 19 底板的設(shè) 計(jì) ....................................................................................................................... 26 支撐板的設(shè)計(jì) ................................................................................................................... 26 小底板的設(shè)計(jì) ................................................................................................................... 27 3 液壓系統(tǒng)的設(shè)計(jì) ..................................................................................... 30 液壓系統(tǒng)的方案設(shè)計(jì) ....................................................................................................... 30 液壓系統(tǒng)的參數(shù)計(jì)算 ......................................