【正文】 9N2＝N1/i＝108/＝108查圖《接觸疲勞壽命系數(shù)》得ZNT1＝1，ZNT2＝由式可得[σH] 1＝ZNT1σHlim1/ SH＝1560/1 MPa＝560 MPa[σH] 2＝ZNT2σHlim2/ SH＝530/1 MPa＝ MPa故由表《漸開線齒輪的模數(shù)》取標(biāo)準(zhǔn)模數(shù)m＝2主要尺寸計(jì)算（1）分度圓直徑dd1＝m z1＝225mm＝50mmd2＝m z2＝288mm＝176mm（2）齒寬bb2＝b＝ψdd1＝175mm＝75mmb1＝b2＋5mm＝80mm（3）標(biāo)準(zhǔn)中心距a（4）齒頂圓直徑da（我國規(guī)定的標(biāo)準(zhǔn)值為h a＊＝1，c＊＝）齒頂高h(yuǎn) a＝h a＊m＝m＝3mmd a1＝d1＋2h a＝75＋23=81mmd a2＝d2＋2h a＝195＋23=201mm（5）齒根圓直徑df齒根高h(yuǎn) f＝（h a＊＋c＊）m＝ m＝d f1＝d1－2h f＝75－2=d f2＝d2－2h f＝195－2=按齒根彎曲疲勞強(qiáng)度校核根據(jù)式則校核合格。確定有關(guān)系數(shù)與參數(shù)：（1）齒形系數(shù)YF由表《標(biāo)準(zhǔn)外齒輪的齒形系數(shù)YF》查得：YF1＝，YF2＝。=77176。=74176。η4＝＝ kW各軸輸入轉(zhuǎn)矩Ⅰ軸Ⅱ軸Ⅲ軸主軸： 運(yùn)動(dòng)和動(dòng)力參數(shù) 軸名 參數(shù)Ⅰ軸Ⅱ軸Ⅲ軸主軸轉(zhuǎn)速n/（r/min）輸入功率P/kW輸入轉(zhuǎn)矩T/（Nη1但兩級(jí)減速器的總中心距和總傳動(dòng)比相同時(shí)，傳動(dòng)比分配方案不同，減速器的外廓尺寸也不同。交流電動(dòng)機(jī)有異步電動(dòng)機(jī)和同步電動(dòng)機(jī)兩類，異步電動(dòng)機(jī)又分為籠型和繞線型兩種，其中以普通籠型異步電動(dòng)機(jī)應(yīng)用最多。 機(jī)械傳動(dòng)The Design of The Plate Mill’s GearJia GenqinClass of 0601 Machinery ManufacturingAbstract：Wheel gear’s spreading to move is a the most wide kind of the application spreads to move a form in the modern main advantage BE:spreads to move to settle, work than in a moment steady, spread to move accurate credibility, can deliver space arbitrarily sport and the motive of the of two stalks；Power and speed scope；applies are wide；spreads to move an efficiency high；work is dependable, service life long；Outline size outside the is small, structure tightly wheel gear constituted to；from wheel gear, stalk, bearings and box body decelerates a machine, useding for prime mover and work machine or performance organization of, have already matched to turn soon and deliver a function of turning , the application is extremely extensive in the modern machine. Local deceleration machine much with the wheel gear spread to move, the pole spread to move for lord, but widespread exist power and weight ratio small, or spread to move ratio big but the machine efficiency lead a low are also many weaknesses on material quality and craft level moreover, the especially large deceleration machine’s problem is more outstanding, the service life isn’t deceleration machine of abroad, with Germany, Denmark and Japan be placed in to lead a position, occupying advantage in the material and the manufacturing craft specially, decelerating the machine work credibility like, service life it spreads to move a form to still take settling stalk wheel gear to spread to move as lord, physical volume and weight problem, don’t also resolve likeThe direction which decelerates a machine to is the facing big power and spread to move ratio, small physical volume, high machine efficiency and service life to grow greatly nowadays the connecting of machine and electric motor body structure is also the form which expands strongly, and have already produced various structure forms and various products of power model close to ten several in the last yearses, control a technical development because of the modern calculator technique and the number, make the machine process accuracy, process an efficiency to raise consumedly, pushed a machine to spread the diversification of movable property article thus, the mold piece of the whole machine kit turns, standardizing, and shape design the art turn, making product more fine, the beauty turns.Bee a set a machine material in 21 centuries medium, the wheel gear is still a machine to spread a dynamic basic tool machine and the craft technical development, pushed a machine to spread to move structure to fly to develop spreading to move the electronics control, liquid in the system design to press to spread to move, wheel gear, take the mixture of chain to spread to move, will bee bee soon a box to design in excellent turn to spread to move a bination of academics that is in spread move the design crosses, will bee new spread a movable property article the important trend of the development.Key words： Reduction gear Bearing gear mechanical drive一、傳動(dòng)裝置的總體設(shè)計(jì) （一）傳動(dòng)方案分析傳動(dòng)裝置的布局要求：在分析盤磨機(jī)傳動(dòng)裝置方案時(shí)，首先應(yīng)該滿足機(jī)械設(shè)計(jì)的基本要求，此外還要保證工作可靠，傳動(dòng)效率高，結(jié)構(gòu)簡(jiǎn)單，工藝性能好等，同時(shí)應(yīng)注意常用機(jī)械傳動(dòng)方式的特點(diǎn)及在布局上的要求：（1）帶傳動(dòng)平穩(wěn)性好，能緩沖吸振，但承載能力小，宜布置在高速級(jí)；（2）鏈傳動(dòng)平穩(wěn)性差，且有沖擊、振動(dòng)，宜布置在低速級(jí)；（3）蝸桿傳動(dòng)放在高速級(jí)時(shí)蝸輪材料應(yīng)選用錫青銅，否則可選用鋁鐵青銅；（4）開式齒輪傳動(dòng)的潤滑條件差，磨損嚴(yán)重，應(yīng)布置在低速級(jí)；（5）錐齒輪、斜齒輪宜放在高速級(jí)；根據(jù)工作需要，所以，盤磨機(jī)與減速器之間應(yīng)該選用錐齒輪進(jìn)行傳動(dòng)。近十幾年來,由于近代計(jì)算機(jī)技術(shù)與數(shù)控技術(shù)的發(fā)展，使得機(jī)械加工精度，加工效率大大提高，從而推動(dòng)了機(jī)械傳動(dòng)產(chǎn)品的多樣化，整機(jī)配套的模塊化，標(biāo)準(zhǔn)化，以及造型設(shè)計(jì)藝術(shù)化，使產(chǎn)品更加精致，美觀化。盤磨機(jī)傳動(dòng)裝置設(shè)計(jì)畢業(yè)論文盤磨機(jī)傳動(dòng)裝置設(shè)計(jì)【摘 要】齒輪傳動(dòng)是現(xiàn)代機(jī)械中應(yīng)用最廣的一種傳動(dòng)形式。減速器與電動(dòng)機(jī)的連體結(jié)構(gòu)，也是大力開拓的形式，并已生產(chǎn)多種結(jié)構(gòu)形式和多種功率型號(hào)的產(chǎn)品。 齒輪電動(dòng)機(jī)類型和結(jié)構(gòu)型式的選擇電動(dòng)機(jī)有交流電動(dòng)機(jī)和直流電動(dòng)機(jī)之分，一般工廠都采用三相交流電，因而多采用交流電動(dòng)機(jī)。（2）應(yīng)使傳動(dòng)裝置的結(jié)構(gòu)尺寸較小、重量較輕。各軸轉(zhuǎn)速nⅠ＝n0＝1440 r/min各軸的輸入功率 Ⅰ軸 PⅠ＝Pdη22－16176。+3176。按齒根彎曲疲勞強(qiáng)度校核當(dāng)齒根彎曲疲勞強(qiáng)度計(jì)算的校核公式為則校核合格。mm（2）載荷系數(shù)，查表《載荷系數(shù)》表取K=（3）齒數(shù)z1和齒寬系數(shù)ψd小齒輪齒數(shù)z1取25，因i=，則大齒輪齒數(shù)z2＝65，因直齒圓柱齒輪傳動(dòng)為對(duì)稱布置，而齒輪齒面又為軟齒面，由表《齒寬系數(shù)》取齒寬系數(shù)ψd =1（4）許用接觸應(yīng)力由《接觸疲勞強(qiáng)度極限》圖查得σHlim1＝560MPa，σHlim2＝530MPa由表《安全系數(shù)SH和SF》查得安全系數(shù)SH＝1N1＝60njLh＝601（85240）＝108N2＝N1/i＝108/＝108查圖《接觸疲勞壽命系數(shù)》得ZNT1＝，ZNT2＝由式可得[σH] 1＝ZNT1σHlim1/ SH＝560/1 MPa＝ MPa[σH] 2＝ZNT2σHlim2/ SH＝530/1 MPa＝故由表《漸開線齒輪的模數(shù)》取標(biāo)準(zhǔn)模數(shù)m＝3主要尺寸計(jì)算（1）分度圓直徑dd1＝m z1＝325mm＝75mmd2＝m z2＝365mm＝195mm（2）齒寬bb2＝b＝ψd按齒輪面接觸疲勞強(qiáng)度設(shè)計(jì)因兩齒輪均為鋼質(zhì)齒輪，可由下式可求出d1值，先確定有關(guān)參數(shù)與系數(shù)：（1）轉(zhuǎn)矩T1 T1=104N由表 《軸的常用材料及部分機(jī)械性能》查得抗拉強(qiáng)度極限σB＝650MPa，屈服極限σS＝360MPa，σ1＝300MPa，彎曲疲勞極限再由表《軸的許用彎曲應(yīng)力》得許用彎曲應(yīng)力[σ1b] ＝60MPa。軸承安裝于減速器的另一側(cè)，其軸向用軸肩固定，軸向采用過盈配合固定。=1086N（標(biāo)準(zhǔn)的法向嚙合角α=20176。mmⅠⅠ截面右側(cè)彎矩為：M VⅠ右= 64FVB=642347= 150 208N中間軸的設(shè)計(jì)（1）選擇軸的材料，確定許用應(yīng)力選擇軸的材料為45鋼，調(diào)質(zhì)處理。2)確定各軸段的直徑如下圖2，軸段①（外伸端）直徑最小，d1=25mm，則d5=d1=25mm；由于小齒輪軸段②和大齒輪軸段④的直徑為d2=d4=30mm；用相同的方法確定軸段③的直徑d3=35mm；為了便于拆卸左右軸承，可查出6205型滾動(dòng)軸承的安裝高度為3mm。又由式得：考慮到該軸段上裝聯(lián)軸器和有鍵槽，故將估算直徑加大3%～5%，～。按設(shè)計(jì)結(jié)果畫出軸的結(jié)構(gòu)草圖（見圖3）圖3（五）齒輪的結(jié)構(gòu)設(shè)計(jì)直齒圓柱齒輪Ⅰ的設(shè)計(jì)由于直齒齒輪的齒頂圓直徑da≤200mm時(shí)，采用實(shí)體式結(jié)構(gòu)，此結(jié)構(gòu)型式的齒輪常用鍛鋼制造。m2許用補(bǔ)償量徑向△Y軸向△XmmmmHL1902177。m由上表知：額定轉(zhuǎn)矩Tm=160N中間軸②段鍵槽鍵寬b為8mm，鍵高h(yuǎn)為7mm，鍵長(zhǎng)L為70mm。由于鍵載荷性質(zhì)為輕微沖擊，經(jīng)查表《鍵連接的許用應(yīng)力》得：鍵連接中最弱材料的許用擠壓應(yīng)力[σjy]=100～120MPa；又因此，選用該鍵是合適的。箱體時(shí)減速器中的一個(gè)重要零件，是