耕王拖拉機(jī)離合器的設(shè)計(jì)畢業(yè)論文-展示頁(yè)
2024-09-07 09:10本頁(yè)面
【正文】 o increase the level of agricultural mechanization in farming, to accelerate the pace of agricultural modernization, according to the existing clutch of a tractor and use of the performance of the work to plete the design of the clutch of a tractor. Through the design of the clutch, so that more excellent performance vehicle. When the first clutch in the design should be based on the type of model, requirements for a reasonable choice to use the clutch type, and a reasonable choice reserve coefficient, paction, and friction, such as chip size of the specific value of the main parameters. Checked after the clutch (mainly for wear, sliding wear and heat checking Gong) and the main parts of the strength calculation, and the pletion of the assembly drawing and mapping a number of parts. To achieve good use of the clutch and the structure of technology. Key words : Tractor Clutch Reserve coefficient Pressed power Friction plate size 黃河水利職業(yè)技術(shù)學(xué)院 4 目 錄 論 ........................................................................................................................ 5 離合器概述 ...................................................................................................... 5 離合器的功能 .................................................................................................. 5 離合器的工作原理 .......................................................................................... 5 離合器的分類(lèi) .................................................................................................. 6 離合器的設(shè)計(jì)要求 ........................................................................................... 8 .................................................................................................... 9 、溫升的驗(yàn)算 ................................................... 11 離合器的儲(chǔ)備系數(shù) β...................................................................................... 11 摩擦襯面外徑 D2 和內(nèi)徑 D1 ......................................................................... 12 壓緊力 0Q （ N）的確定 ................................................................................ 13 離合器磨損驗(yàn)算 ............................................................................................ 14 滑磨功的驗(yàn)算 ................................................................................................. 15 離合器發(fā)熱驗(yàn)算 ............................................................................................. 17 離合器實(shí)際壓緊力的影響因素 ..................................................................... 18 件的結(jié)構(gòu)與設(shè)計(jì) .............................................................................. 19 離合器軸的計(jì)算 ............................................................................................ 19 壓緊彈簧的計(jì)算 ............................................................................................. 20 .......................................................................................................................... 23 參考文獻(xiàn) ...................................................................................................................... 25 致謝 .............................................................................................................................. 26 黃河水利職業(yè)技術(shù)學(xué)院 5 論 離合器概述 離合器位于發(fā)動(dòng)機(jī)和變速箱之間的飛輪殼內(nèi)，用螺釘將離合器總成固定在飛輪的后平面上，離合器的輸出軸就是變速箱的輸入軸。 在汽車(chē)行駛過(guò)程中，駕駛員可根據(jù)需要踩下或松開(kāi)離合器踏板，使發(fā)動(dòng)機(jī)與變速箱暫時(shí)分離和逐漸接合，以切斷或傳遞發(fā)動(dòng)機(jī)向變速器輸入的動(dòng)力。如果在起步時(shí)利用離合器暫時(shí)將發(fā)動(dòng)機(jī)和變速箱分離，然后離合器逐漸接合，由于離合器的主動(dòng)部分 與從動(dòng)部分之間存在著滑磨的現(xiàn)象，可以使離合器傳出的扭矩由零逐漸增大，而汽車(chē)的驅(qū)動(dòng)力也逐漸增大，從而讓汽車(chē)平穩(wěn)地起步。如果沒(méi)有離合器將發(fā)動(dòng)機(jī)與變速箱暫時(shí)分離，那么變速箱中嚙合的傳力齒輪會(huì)因載荷沒(méi)有卸除，其嚙合齒面間的壓力很大而難于分開(kāi)。即使強(qiáng)行進(jìn)入嚙合也會(huì)產(chǎn)生很大的齒端沖擊，容易損壞機(jī)件。而待嚙合的另一對(duì)齒輪，由于主動(dòng)齒輪與發(fā)動(dòng)機(jī)分開(kāi)后轉(zhuǎn)動(dòng)慣量很小，采用合適的換檔動(dòng)作就能使待嚙合的齒輪圓周速度相等或接近相等，從而避免或減輕齒輪間的沖擊。由于離合器是靠磨擦力來(lái)傳
高考資料相關(guān)推薦
鄂ICP備17016276號(hào)-1