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三速變速箱設(shè)計(jì)畢業(yè)設(shè)計(jì)-閱讀頁

2025-07-12 07:53本頁面
  

【正文】 【2】197頁式(82)得 從以上計(jì)算可知兩類型的軸承均滿足各自的需求。滑移齒輪的定位系統(tǒng)由以下幾部分組成:拔叉:拔叉是用來撥動(dòng)滑移齒輪移動(dòng)的,滑移齒輪的移動(dòng)實(shí)現(xiàn)多對(duì)齒輪的不同時(shí)嚙合,由于傳動(dòng)比的不同,從而能夠?qū)崿F(xiàn)輸出軸的不同轉(zhuǎn)速。齒條軸:齒條軸通過扇形齒的帶動(dòng)左右移動(dòng),由于拔叉與軸通過銷連接,故拔叉也隨軸左右移動(dòng)了。手柄:手柄與扇形齒的中心軸固連,通過左右搖動(dòng)手柄來實(shí)現(xiàn)扇形齒的左右轉(zhuǎn)動(dòng)。當(dāng)齒輪圓周速度時(shí),圓柱齒輪浸入油的深度約一個(gè)齒高,三分之一齒輪半徑,大齒輪的齒頂?shù)接偷酌娴木嚯x≥30~60mm。潤(rùn)滑油的選擇:齒輪潤(rùn)滑,考慮到該裝置用于小型設(shè)備,選用LAN15潤(rùn)滑油。(二)密封:防止外界的灰塵、水分等侵入軸承,并阻止?jié)櫥瑒┑穆┦?。材料為:HT200。軸承蓋:根據(jù)結(jié)構(gòu)要求采用嵌入式軸承蓋各尺寸由【3】。由【3】第六節(jié) 裝配圖設(shè)計(jì)一、裝配圖的作用作用:裝配圖表明變速箱各零件的結(jié)構(gòu)及其裝配關(guān)系,表明變速箱整體結(jié)構(gòu),所有零件的形狀和尺寸,相關(guān)零件間的聯(lián)接性質(zhì)及變速器的工作原理,是變速箱裝配、調(diào)試、維護(hù)等的技術(shù)依據(jù),表明變速箱各零件的裝配和拆卸的可能性、次序及變速箱的調(diào)整和使用方法。選擇主視圖作為基本視圖,它將變速箱的工作原理和主要裝配關(guān)系集中反映在一個(gè)基本視圖上。b、各視圖之間應(yīng)留適當(dāng)?shù)某叽鐦?biāo)注和零件序號(hào)標(biāo)注的位置。如傳動(dòng)零件的中心距及其極限偏差等。如:軸承與軸、軸承外圈與機(jī)座、軸與齒輪的配合、等應(yīng)標(biāo)注公稱尺寸、配合性質(zhì)及精度等級(jí)。外形尺寸:變速箱的最大長(zhǎng)、寬、高外形尺寸表明裝配圖中整體所占空間。(三)標(biāo)題欄、序號(hào)和明細(xì)表:說明機(jī)器或部件的名稱、數(shù)量、比例、材料、標(biāo)準(zhǔn)規(guī)格、標(biāo)準(zhǔn)代號(hào)、圖號(hào)以及設(shè)計(jì)者姓名等內(nèi)容。裝備圖中每個(gè)零件都應(yīng)編寫序號(hào),并在標(biāo)題欄的上方用明細(xì)表來說明。 技術(shù)要求包括變速箱裝配前、滾動(dòng)軸承游隙、傳動(dòng)接觸斑點(diǎn)、嚙合側(cè)隙、變速箱的潤(rùn)滑、試驗(yàn)、包裝運(yùn)輸要求。通過這次設(shè)計(jì),對(duì)四年所學(xué)專業(yè)課程以及基礎(chǔ)課等均有了比較系統(tǒng),全面的認(rèn)識(shí)。同時(shí)養(yǎng)成了查資料的良好習(xí)慣, 樹立起嚴(yán)肅求實(shí)的科學(xué)作風(fēng)。通過這次設(shè)計(jì),使自己樹立了正確的設(shè)計(jì)思想,嚴(yán)謹(jǐn)求實(shí)的工作作風(fēng),培養(yǎng)了分析問題,提出問題,解決問題的能力,為我們將來順利地步入工作崗位打下了許多堅(jiān)實(shí)的基礎(chǔ),使我們更好地成為合格的工程技術(shù)人員,為我國(guó)的機(jī)械行業(yè)作出貢獻(xiàn)。s first Chinese products Gear Contents , catalog is fully reflect the good gear products industry, the most information, the most informative tool. Mechanical Department in 1997 in Beijing held a 97 39。s rapid development of the market economy, the industrial sector restructuring. Gear of production, and ancillary sales to break the original sectoral boundaries, professional production has developed rapidly. To be marketoriented, according to the laws of the market formed a vehicle with the gear system of the two major industrial gear.Gear for vehicles including cars, motorcycles, farm vehicles, farm machinery, engineering machinery supporting the largescale production of gear. Other metallurgical, construction, petroleum, chemical, mining, power, light industry, textiles, railways, aviation, ships, and other industrial outfits matching gear products, collectively called industrial gear. Gear Works to break the existing sectoral boundaries, crosssectoral and interdepartmental support, and gradually enter the international market. China has formed the backbone Gear Works nearly 200. National Gear annual output of about 25 billion yuan. The annual output of 200 million yuan to 20 billion yuan in 15 enterprises, sold 50 million yuan more than 45 enterprises. China has ascended to the world39。s automotive past five Gear39。s vitality. Agricultural Machinery Gear Works With multiplying market development, the majority of farm vehicles to change gear. For example, Changzhou Flying Group (formerly Changzhou Gear Works) has developed into the country39。s Buick four T65E automatic transmission, both high technological contents of the latest transmission products. At present, China39。s car industry development. The current lack of good economic performance and low cost of the CVT series of products. Light vehicle transmission products do better : the introduction and assimilation of the Isuzu MSB series, Changchun Gear plant CAS5 series, the love letter Tangshan Gear Limited 5 Y series, Harbin gearbox plant HS5 1613 light vehicle gearbox assembly of the new 1995 National Product Award. Tianjin Automobile Gear Limited production TJ1010 gearbox and TJ7130UQ five stall speed drive axle 19 98 through the identification. Qijiang GEAR FACTORY production S690 gearbox assembly is heavy domestic automobile gearbox new products, 1998 was the Department of Mechanical Technology Third progress. Datong Gear Corporation production of heavy vehicle gearbox, in 1995 was Shengyouchanpin. Qijiang GEAR FACTORY production QJ50B gearbox assembly, Shaanxi Automobile Gear production plants JS180 series of mechanical gearbox, in 1998 through the identification of new products. In the industrial gear products, China39。s most advanced level. a modular design means, development geared to the 21st century, new products such as highspeed gearbox Nanjing plant new products PR Series modular reduction gears speed detector, the most representative. Gearbox exclusive industrial products, Nanjing highspeed gear box production plants maximum speed reached 67 min. The maximum speed of 168 round Gear m / s, the largest power transmission 44 kW. Chongqing gearbox Limited production of highpower marine gearbox series, the tube mill gearbox JS series can replace imported products. and enter the international market. CITIC heavy machinery panies slowdown yard at slow speed, high torque drive the development of new products in recent years has achieved significant results, If ZJ2240 planetary gear reducer (2 kW power transmission), Commodities water for the dam the largest domestic 4 5000 N Main Drive SZJ3500 shiplift reducer. Press the main transmission TD5 reducer. Drawing of the main transmission perforation KF300 reducer (transmission torque three kN ? m) are the nation39。s engine speed range is smaller, and the torque range can not meet the actual needs of the traffic. 2. Vehicle achieve reversing engine crankshaft are usually only one direction to the rotation. Vehicle sometimes needs to be regressive moving, it is often used to set up the gearbox to achieve Reverse reversing moving vehicle. 3. When achieving free clutch engagement, the gearbox can output power. For example, we can guarantee that the driver of the engine flameout when the clutch pedal is released from the driver seat. Gearbox Transmission by the variable speed control agencies and organizations posed of two parts. Transmission of primary role is to change the torque and rotational speed and direction of the numerical。鑒于中國(guó)的齒輪企業(yè)在計(jì)劃經(jīng)濟(jì)的體制下,長(zhǎng)期被分散在原機(jī)械工業(yè)部(以下簡(jiǎn)稱機(jī)械部)的七個(gè)工業(yè)局與其他八個(gè)工業(yè)部的相關(guān)部門中管理,被分散在大而全小側(cè)全的機(jī)械工廠中生產(chǎn)。齒輪行業(yè)的科研、標(biāo)準(zhǔn)、情報(bào)的歸口工作由機(jī)械科學(xué)研制院分遷鄭州的鄭州機(jī)械研究所承擔(dān)。在過去的政府統(tǒng)計(jì)資料中,沒有完整的齒輪產(chǎn)品統(tǒng)計(jì)項(xiàng)目。1986年由機(jī)械部與國(guó)家技術(shù)監(jiān)督局聯(lián)合投資在鄭州機(jī)械研究所籌建了國(guó)家齒輪產(chǎn)品質(zhì)量監(jiān)督檢測(cè)中心,開始了國(guó)家齒輪產(chǎn)品質(zhì)量的監(jiān)督性抽查。 1992年由機(jī)械部與河南省政府聯(lián)合下文以機(jī)電生(1992)2069號(hào)文成立了面向全國(guó)的鄭州齒輪產(chǎn)品與技術(shù)交易高層孫昌基副部長(zhǎng)專程來鄭州剪彩。1995年由中國(guó)齒輪專業(yè)協(xié)會(huì)協(xié)助機(jī)械部編制了 甸第一部齒輪行業(yè)九五規(guī)劃。1997年機(jī)械部在北京舉辦了9739。包括齒輪與軸承展覽。與國(guó)際展覽展銷的交易方式接軌。問題的關(guān)鍵是缺少專業(yè)化生產(chǎn),沒有規(guī)范的市場(chǎng)競(jìng)爭(zhēng)
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