高速級齒輪傳動設計【單級圓柱齒輪減速器】【D=32mm T=130N·m V=1.6m-s ?=82%】
高速級齒輪傳動設計【單級圓柱齒輪減速器】【D=32mm T=130Nm V=1.6m-s =82%】,單級圓柱齒輪減速器,D=32mm T=130N·,m V=1.6m-s =82%,高速級齒輪傳動設計【單級圓柱齒輪減速器】【D=32mm,T=130N·,m,V=1.6m-s,=82%】,高速,齒輪,傳動
目 錄一、傳動方案的擬定及電動機的選擇2二、V帶選擇 4三高速級齒輪傳動設計6四、軸的設計計算 9五、滾動軸承的選擇及計算13六、鍵聯(lián)接的選擇及校核計算14七、聯(lián)軸器的選擇14八、減速器附件的選擇14九、潤滑與密封15十、設計小結16十一、參考資料目錄16數(shù)據(jù)如下:已知帶式輸送滾筒直徑320mm,轉矩T=130 Nm,帶速 V=1.6m/s,傳動裝置總效率為=82%。一、擬定傳動方案由已知條件計算驅動滾筒的轉速n,即r/min一般選用同步轉速為1000r/min或1500r/min 的電動機作為原動機,因此傳動裝置傳動比約為10或15。根據(jù)總傳動比數(shù)值,初步擬定出以二級傳動為主的多種傳動方案。2.選擇電動機1)電動機類型和結構型式按工作要求和工作條件,選用一般用途的Y(IP44)系列三相異步電動機。它為臥式封閉結構。2)電動機容量(1)滾筒輸出功率Pw (2)電動機輸出功率P 根據(jù)傳動裝置總效率及查表2-4得:V帶傳動1=0.945;滾動軸承2 =0.98;圓柱齒輪傳動 3 =0.97;彈性聯(lián)軸器4 =0.99;滾筒軸滑動軸承5 =0.94。(3)電動機額定功率Ped 由表20-1選取電動機額定功率Ped =2.2kw。3)電動機的轉速為了便于選擇電動機轉速,先推算電動機轉速的可選范圍。由表2-1查得V帶傳動常用傳動比范圍i1 =24,單級圓柱齒輪傳動比范圍i2 =36,則電動機轉速可選范圍為nd= ni1i2 =5732292r/min方案電動機型號額定功率(kw)電動機轉速(r/min)電動機質(zhì)量(kg)傳動裝置的傳動比同步滿載總傳動比V帶傳動單級減速器1Y100L1-42.2150014203414.8734.962Y112M-62.21000940459.842.53.94 由表中數(shù)據(jù)可知兩個方案均可行,方案1相對價格便宜,但方案2的傳動比較小,傳動裝置結構尺寸較小,整體結構更緊湊,價格也可下調(diào),因此采用方案2,選定電動機的型號為Y112M-6。4)電動機的技術數(shù)據(jù)和外形、安裝尺寸由表20-1,20-2查出Y112M-6 型電動機的主要技術數(shù)據(jù)和外形、安裝尺寸,并列表記錄備用(略)。3.計算傳動裝置傳動比和分配各級傳動比1)傳動裝置傳動比2)分配各級傳動比取V帶傳動的傳動比i1 =2.5,則單級圓柱齒輪減速器傳動比為所得i2值符合一般圓柱齒輪傳動和單級圓柱齒輪減速器傳動比的常用范圍。4.計算傳動裝置的運動和動力參數(shù)1)各軸轉速電動機軸為0軸,減速器高速軸為I軸,低速軸為軸,各軸轉速為 n0=nm=940r/min nI=n0/i1=940/2.5376nII=nI/i2=376/3.9495.5r/min2)各軸輸入功率按電動機額定功率Ped 計算各軸輸入功率,即P0=Ped=2.2kwPI=P01=2.2x0.9452.079kwPII=PI2 3 =2.079x0.98x0.971.976kw3)各軸轉矩 To=9550x P0/n0=9550x2.2/940=22.35NmTI=9550x PI/nI=9550x2.079/376=52.80NmTII=9550x PII/nII=9550x1.976/95.5=197.6Nm二、V帶選擇1 選擇V帶的型號根據(jù)任務書說明,每天工作8小時,載荷平穩(wěn),由精密機械設計的表7-5查得KA =1.0。則Pd=PIKA =1.02.2=2.2kW 根據(jù)Pd=2.2和n1=940r/min,由機械設計基礎課程設計圖7-17確定選取A型普通V帶。2 確定帶輪直徑D1,D2。由圖7-17可知,A型V帶推薦小帶輪直徑D1=125140mm。考慮到帶速不宜過低,否則帶的根數(shù)將要增多,對傳動不利。因此確定小帶輪直徑D1=125mm。大帶輪直徑,由公式D2=iD1(1-) (其中取0.02) 由查機械設計基礎課程設計表9-1,取 D2=315mm。3 檢驗帶速v v=1.6m/s25m/s4 確定帶的基準長度根據(jù)公式729:0.7(D1+D2)a2(D1+D2)初定中心距500mm依據(jù)式(7-12)計算帶的近似長度L= 1708.9mm由表7-3選取Ld=1800mm,KL=1.015 確定實際中心距a=545.6mm6 驗算小帶包角1 =16007 計算V帶的根數(shù)z。由表7-8查得P01.40,由表7-9查得Ka=0.95,由表7-10查得P0=0.11,則V帶的根數(shù) =1.52根 取z=28 計算帶寬BB=(z-1)e+2f由表7-4得:B=35mm三高速級齒輪傳動設計1) 選擇材料、精度及參數(shù)小齒輪:45鋼,調(diào)質(zhì),HB1 =240大齒輪:45鋼,正火,HB2 =190模數(shù):m=2齒數(shù):z1=24 z2=96齒數(shù)比: u=z2/z1=96/24=4精度等級:選8級(GB10095-88)齒寬系數(shù)d: d =0.83 (推薦取值:0.81.4)齒輪直徑:d1=mz1=48mm d2=mz2=192mm壓力角:a=200齒頂高:ha=m=2mm齒根高:hf=1.25m2.5mm全齒高:h=(ha+hf)=4.5mm中心距:a=m(z1+z2)/2=120mm小齒輪寬:b1=dd1=0.8348=39.84mm大齒輪寬:根據(jù)機械設計基礎課程設計P24,為保證全齒寬接觸,通常使小齒輪較大齒輪寬,因此得:b2=40mm1 計算齒輪上的作用力設高速軸為1,低速軸為2圓周力:Ft1=2T1/d=2200N Ft2=2T/d=2058.3N徑向力:Fr1=F1ttana=800.7N Fr2=F2ttana=749.2N軸向力為幾乎為零 2)齒輪許用應力H F 及校驗ZH節(jié)點齒合系數(shù)。對于標準直齒輪,an=20,=0,ZH=1.76ZE彈性系數(shù),。當兩輪皆為鋼制齒輪(=0.3,E1=E2=2.10x10N/mm2)時,ZE=271;Z重合系數(shù),。對于直齒輪,Z=1。.K載荷集中系數(shù),由精密機械設計圖8-38選取,k =1.08Kv動載荷系數(shù),精密機械設計圖8-39,kv=1.02計算得 H=465.00 Nmm-2對應于NHO的齒面接觸極限應力其值決定于齒輪齒輪材料及熱處理條件,精密機械設計表8-10;=2HBS+69=240x2+69=549Nmm-2。SH安全系數(shù)。對于正火、調(diào)質(zhì)、整體淬火的齒輪,去SH=1.1;KHL壽命系數(shù)。式中NHO:循環(huán)基數(shù),查精密機械設計圖8-41,NHO=1.5x107;NH:齒輪的應力循環(huán)次數(shù),NH=60nt=60x376x60x8=1.08288x107;取KHL =1.06=529.04 Nmm-2H=465.00 Nmm-2=529.04 Nmm-2因此接觸強度足夠B齒寬,=0.83x48=39.84;許用彎曲應力;查表8-11得=1.8x240=432 Nmm-2,=1.8,=1 (齒輪雙面受載時的影響系數(shù),單面取1,雙面區(qū)0.70.8),(壽命系數(shù))循環(huán)基數(shù)取4x106 ,循環(huán)次數(shù)=60nt=60x376x60x8=1.08288x107 KFL =0.8471YF齒形系數(shù)。查精密機械設計圖8-44,YF=3.73計算得=240 Nmm-2F=113.45 Nmm-2F因此彎曲強度足夠四、軸的結構設計1 軸的材料選用45鋼2 估算軸的直徑根據(jù)精密機械設計P257式(10-2),查表10-2軸的最小直徑取C=110或=30計算得d1min20mmd2min30mm取 d1=20mm,d2=30mm3 軸的各段軸徑根據(jù)機械設計基礎課程設計P26,當軸肩用于軸上零件定位和承受內(nèi)力時,應具有一定高度,軸肩差一般可取610mm。用作滾動軸承內(nèi)圈定位時,軸肩的直徑應按軸承的安裝尺寸取。如果兩相鄰軸段直徑的變化僅是為了軸上零件裝拆方便或區(qū)分加工表面時兩直徑略有差值即可,例如取15mm也可以采用相同公稱直徑而不同的公差數(shù)值。按照這些原則高速軸的軸徑由小到大分別為:20mm,22mm,25mm,48mm,25mm;低速軸的軸徑由小到大分別為:30mm,32mm,35mm,40mm,48mm,35mm。4 軸的各段長度設計1) 根據(jù)機械設計基礎課程設計表3-1,表4-1以及圖4-1,得取8mm, 1取8mm, 齒輪頂圓至箱體內(nèi)壁的距離:1=10mm 齒輪端面至箱體內(nèi)壁的距離:2=10mm 軸承端面至箱體內(nèi)壁的距離(軸承用油潤滑時):3=5mm 箱體外壁至軸承座孔端面的距離:L1=+C1+C2+(510)=45mm 軸承端蓋凸緣厚度:e=10mm 2) 帶輪寬:35mm 聯(lián)軸器端:60mm1) 軸承的厚度B01=15mm,B02=17mm根據(jù)上面數(shù)據(jù),可以確定各段軸長,由小端到大端依次為:高速軸:35mm,42mm,16mm,12mm,40mm,12mm,16mm低速軸:60mm,40mm,30mm,40mm,10mm,17mm5 軸的校核計算(精密機械設計P257P262,機械設計手冊)對于高速軸校核:FrFtFzLc LaLb L垂直面內(nèi)支點反力:La:28.5帶輪中徑到軸承距離,Lb:67.5mm兩軸承間距離。校核FrA= Fr+ FrB1065.5N=(749.2+316.3)N類似方法求水平面內(nèi)支點反力:V帶在軸上的載荷可近似地由下式確定: ; F0單根V帶的張緊力(N)Pd計算功率Pd=2.079Kw ;ZV帶的根數(shù);=6.2 ms-1(為帶速)Ka包角修正系數(shù)Ka=0.95qV帶單位長度質(zhì)量q=0.10(kgm-1)精密機械設計表7-11計算得F0=144.7Fz=570N(lc =Lc =67中軸到軸承距離)N,MA=FrLa=21352.2NmmMB=0同理求得: M=A=FtLa=58662.4 NmmM=B=FzLc=38190 NmmNmmNmm已知T=52800Nmm,選用軸的材料為45鋼,并經(jīng)正火處理。查精密機械設計表10-1,其強度極限=600Nmm-2 ,并查表10-3與其對應的=55N mm-2,=95 Nmm-2故可求出Nmm同理得MvB=31098.7 Nmmmm在結構設計中定出的該處直徑dA=25mm,故強度足夠。同理對高速軸的校核中: d=33.2mm, 在結構設計中定出的該處直徑d=35mm,故強度足夠。五、滾動軸承的選擇及校核計算根據(jù)任務書上表明的條件:載荷平穩(wěn),以及軸承主要受到軸向力,所以選擇圓錐滾子軸承。由軸徑的相應段根據(jù)機械設計基礎課程設計表15-7選擇輕窄(2)系列,其尺寸分別為:內(nèi)徑:d1=25mm,d2=35mm外徑:D1=52mm. D2=72mm寬度:B1=15mm,B2=17mm滾動軸承的當量載荷為:0,X=1;Y=0;則C額定動載荷,機械設計基礎課程設計表15-7而題目要求的軸承壽命為,故軸承的壽命完全符合要求六、鍵聯(lián)接的選擇及校核計算1根據(jù)軸徑的尺寸,由機械設計基礎課程設計表14-1高速軸與V帶輪聯(lián)接的鍵為:鍵C8X30 GB1096-79大齒輪與軸連接的鍵為:鍵 12X32 GB1096-79軸與聯(lián)軸器的鍵為:鍵C8X50 GB1096-792鍵的強度校核 齒輪與軸上的鍵 :鍵C1232 GB1096-79bh=128,L=32,則Ls=L-b=20mm圓周力:Fr=2TII/d=2197600/40=9880N擠壓強度:=123.5125150MPa=p因此擠壓強度足夠剪切強度:=82.3120MPa=因此剪切強度足夠鍵C830 GB1096-79和鍵C856 GB1096-79根據(jù)上面的步驟校核,并且符合要求。七、 聯(lián)軸器的選擇 根據(jù)軸徑的和機械設計基礎課程設計表17-1選擇聯(lián)軸器的型號:GB3852-83 J1一對組合軸孔直徑:d=30mm,長度:L=60mm 八、減速器附件的選擇通氣器由于在室內(nèi)使用,選通氣器(一次過濾),采用M161.5油面指示器選用游標尺M16起吊裝置采用箱蓋吊耳、箱座吊耳,雙螺釘起吊螺釘放油螺塞選用外六角油塞及墊片M141.5根據(jù)機械設計基礎課程設計表13-7選擇適當型號:起蓋螺釘型號:GB578386 M620,材料Q235高速軸軸承蓋上的螺釘:GB578386 M620,材料Q235低速軸軸承蓋上的螺釘:GB578386 M620,材料Q235螺栓:GB578286 M1080,材料Q235九、潤滑與密封1.齒輪的潤滑采用浸油潤滑,由于為單級圓柱齒輪減速器,速度12m/s,當m20 時,浸油深度h約為1個齒高,但不小于10mm,所以浸油高度約為36mm。2.滾動軸承的潤滑由于軸承周向速度為,所以宜開設油溝、飛濺潤滑。3.潤滑油的選擇齒輪與軸承用同種潤滑油較為便利,考慮到該裝置用于小型設備,選用GB443-89全損耗系統(tǒng)用油L-AN15潤滑油。4.密封方法的選取選用凸緣式端蓋易于調(diào)整,采用悶蓋安裝骨架式旋轉軸唇型密封圈實現(xiàn)密封。密封圈型號按所裝配軸的直徑確定為GB894.1-86-25軸承蓋結構尺寸按用其定位的軸承的外徑?jīng)Q定。十、設計小結課程設計體會這次課程設計是繼上次電子技術課程設計的一次延續(xù),雖然不同科目,但是他們都需要刻苦耐勞,努力鉆研的精神。對于每一個事物都會有第一次的吧,而沒一個第一次似乎都必須經(jīng)歷由感覺困難重重,挫折不斷到一步一步克服,可能需要連續(xù)幾個小時、十幾個小時不停的工作進行攻關;最后出成果的瞬間是喜悅、是輕松、是舒了口氣!課程設計過程中出現(xiàn)的問題幾乎都是過去所學的知識不牢固,許多計算方法、公式都忘光了,要不斷的翻資料、看書,和同學們相互探討。雖然過程很辛苦,有時還會有放棄的念頭,但始終堅持下來,完成了設計,而且學到了,應該是補回了許多以前沒學好的知識,同時鞏固了這些知識,提高了運用所學知識的能力。十一、參考資料目錄1機械設計基礎課程設計,高等教育出版社,王昆,何小柏,汪信遠主編,1995年12月第一版;2精密機械設計,機械工業(yè)出版社 龐振基,黃其圣主編 2005年1月第一版3機械設計手冊,化學工業(yè)出版社 成大先主編 1994年4月第三版16編號無錫太湖學院畢業(yè)設計(論文)相關資料題目: 工業(yè)機器人專用減速器的設計 信機 系 機械工程及自動化專業(yè)學 號: 0923229學生姓名: 賁素東 指導教師: 許菊若 (職稱:副教授 ) (職稱: )2013年5月25日目 錄一、畢業(yè)設計(論文)開題報告二、畢業(yè)設計(論文)外文資料翻譯及原文三、學生“畢業(yè)論文(論文)計劃、進度、檢查及落實表”四、實習鑒定表無錫太湖學院畢業(yè)設計(論文)開題報告題目: 工業(yè)機器人專用減速器的設計 信機 系 機械工程及自動化 專業(yè)學 號: 0923229 學生姓名: 賁素東 指導教師: 許菊若 (職稱:副教授 ) (職稱: )2012年11月25日 課題來源導師布置的任務科學依據(jù)(包括課題的科學意義;國內(nèi)外研究概況、水平和發(fā)展趨勢;應用前景等)(1)課題科學意義減速器是各種機械設備中最常見的部件,它的作用是將電動機轉速減少或增加到機械設備所需要的轉速, 擺線針輪行星減速器由于具有減速比大、體積小、重量輕、效率高等優(yōu)點,在許多情況下可代替二級、三級的普通齒輪減速器和渦輪減速器,所以使用越來越普及,為世界各國所重視。擺線針輪行星減速器作為重要的機械傳動部件具有體積小、重量輕、傳動效率高的特點。本設計在全面考慮多齒嚙合、運轉平穩(wěn)、輪齒均載等運動學和動力學的要求,實現(xiàn)高承載能力、高傳遞效率、高可靠性和優(yōu)良動力學性能等指標,而且要便于制造、裝配和檢修,設計了該具有合理結構的擺線針輪行星減速器。(2)擺線針輪減速器的研究狀況及其發(fā)展前景 擺線針輪傳動較之普通漸開線齒輪或蝸輪傳動的優(yōu)點是:高傳動比和高效率;同軸輸出,結構體積小和重量輕;傳動平穩(wěn)和噪聲低。由于擺線針輪傳動同時嚙合的齒數(shù)要比漸開線外齒輪傳動同時嚙合的齒數(shù)多,因而承載能力較大,嚙合效率要高;還由于擺線輪和針輪的輪齒均可淬硬、精磨,較漸開線少齒差傳動中內(nèi)齒輪的被加工性能要好,齒面硬度更高,因而使用壽命要長;加上擺線輪的加工技術已經(jīng)過關,專業(yè)加工設備齊全,擺線輪已納入專業(yè)通用件,在國內(nèi)已做到通用化批量生產(chǎn),生產(chǎn)成本下降,因此擺線針輪傳動的減速器當前廣為應用。擺線針輪減速技術至今,雖在品種、規(guī)格等方面做了不少改進,但再沒有作本質(zhì)、原理上的創(chuàng)新?,F(xiàn)今擺線針輪減速器,其原理和結構還是1926年德國的原型。研究內(nèi)容 了解工業(yè)機器人的總體設計的相關內(nèi)容; 熟悉擺線針輪行星減速器的各個部分; 熟練擺線針輪行星減速器的傳動比的計算; 掌握擺線輪行星曲線齒廓形成原理; 掌握對擺線輪、針輪及其他只要零件尺寸的計算及校核擬采取的研究方法、技術路線、實驗方案及可行性分析(1)技術路線:電動機的選擇及其基本參數(shù)計算;擺線輪材料的選擇;擺線輪、針輪、銷軸尺寸的計算;根據(jù)所得尺寸對零件進行校核。(2)研究方法研究方法:理論計算、校核、計算機繪圖;研究計劃及預期成果研究計劃:2012年11月12日-2012年12月2日:按照任務書要求查閱論文相關2012年12月3日-2013年1月20日:專業(yè)實訓。 2013年1月21日-2013年3月1日:按照要求修改畢業(yè)設計開題報告2013年3月1日-2013年3月8日:學習并翻譯一篇與畢業(yè)設計相關的英文資料2013年3月11日-2013年3月15日:分析資料,分析比較各種設計方案。2013年3月25日-2013年3月29日:總體設計。2013年4月8日-2013年4月12日:畢業(yè)論文撰寫和修改工作。2013年4月29日-2013年5月3日:整理說明書。2013年5月6日-2013年5月10日:完成設計說明書。預期成果:1.完成工業(yè)機器人專用減速器裝置二套(第二,三臂各一套),繪制擺線針輪減速器裝配圖(兩份)。2.完成部分零件圖設計,繪制零件圖4份。3.完成設計說明書一份。特色或創(chuàng)新之處 傳動比大,結構緊湊,傳動效率高,傳動穩(wěn)定,使用壽命長,與漸開線少齒差行星傳動相比無齒頂相碰和齒廓重疊現(xiàn)象。已具備的條件和尚需解決的問題 理論設計較為成熟,生產(chǎn)設備條件能夠得到滿足,材料的選擇能夠滿足要求。 制造成本高:擺線針輪行星減速器對材料的要求較高,因而增加了制造成本。 加工工藝復雜:加工擺線針輪需要專門的加床,對裝配工藝也有較嚴格的工藝要求。指導教師意見 指導教師簽名:年 月 日教研室(學科組、研究所)意見 教研室主任簽名: 年 月 日系意見 主管領導簽名: 年 月 日英文原文Mineral product monorail reduction gear synopsis、the main parts of the paper and the research on the noice reducerFirst:what is reducerReducer is a dynamic communication agencies, the use of gear speed converters, motor rotational speed reducer to the Rotary to be few, and have greater torque institutions. The reducer role 1) velocity at the same time increase the output torque, torque output ratio by motor output by slowdown, but the attention should be paid to exceed the rated torque reducer. 2) the speed at the same time reduce the inertia load, the inertia of deceleration than reduced to the square. We can look at the General Motors has a value of inertia. The type of reducer General helical gear reducer has reducer (including parallel shaft helical gear reducer, a worm reducer, bevel gear reducer, etc.), planetary gear reducer, Cycloid reducer, a worm reducer, a planetary friction CVT mechanical machines. Common reducer 1) worm reducer is the main characteristics of a reverse self-locking function, can be larger than a slowdown, input shaft and output shaft axis is not the same, nor in the same plane. But generally larger, transmission efficiency is not high, the accuracy is not high. 2) Harmonic Harmonic Drive reducer is controllable using flexible components to transfer elastic deformation and dynamic movement, not volume, high precision, but the disadvantage is that flexible wheel limited life, impatient shocks, rigidity and pieces of metal relatively poor. Not too high speed input. 3) planetary reducer its comparative advantage is compact structure, the return gap small, high precision, and have a long life span rated output torque can be done great. However, a price slightly expensive, the requirements of parts before assembly 1. Rolling cleaning with gasoline, kerosene other parts cleaning. All parts and Xiangbenna not allowed to have any impurities exist. Gear box and the inner wall (Worm), unprocessed surface has not been coated twice erosion-resistant oil paint, box has the outer surface coated primer and paint color (color requested by host). 2. Parts coated with a face wash after lubricants Second, the requirements of installation and adjustment 1. Rolling installation Rolling bearing inner ring should be installed at the shaft shoulder close to gap must not pass 0.05 mm thick Cypriot feet. 2. Bearing axial clearance of the clearance can not be adjusted bearings (such as deep groove ball bearings), axial clearance of 0.25 to 0.4 mm; the clearance adjustable bearing axial clearance numerical table. Click Tapered Roller Bearings axial clearance; angular contact ball bearing axial clearance 3. Gear (Worm) meshing tooth space available Cypriot side foot of lead or pressure. Will be lead wire on the alveolar, and then turning gear and squash lead wire, measuring two teeth side was crushed lead wire thickness and the size of which is adjacent teeth. 4. Tooth contact dot cylinder gear tooth contact Dot 2-10-4; bevel gear tooth contact Dot 2-11-4; Gearing contact Dot 2-12-4 Third, seal requirements 1. Box partition between the surface does not allow any pads filled, but can be coated or water glass sealant to ensure that the seal; 2. Assembly, the bolt tightening box, before using 0.05 mm Cypriot-foot inspection Covers Block with me and between the sealing surface; 3. Shaft seal should stretch to smear grease. The seal should be installed in strict accordance with the requirements Forth, lubrication requirements 1. Rationally determine the types of lubricants and greases and grades 2. Bearing lubrication fat, grease filled in the general Fatliquor space can be 1 / 2 to 2 / 3. 3. Lubricants should be regularly replaced, the new reducer used for the first time, the operation of oil-7 14 days, according to the situation can be after every 3 to 6 months for first oil. Fifth, the test requirements 1. Empty operation: at rated speed is, anti-running 1 to 2 hours; 2. Load test: at rated speed, rated load operation, the oil temperature balance to date. On the gear reducer, requested the pool temperature is not more than 35 oC, bearing temperature rise no more than 40 oC; the worm reducer, requested the pool temperature not more than 60 oC, bearing temperature of not more than 50 oC; 3. Entire testing process for the smooth operation, noise, not loosening the fixed link, sealed, not with the Sixth, packaging and transportation requirements 1. Protruding shaft and its annex should Oiler packaging; 2. Handling, lifting may not use screw rings and lug all of the above technical requirements are not necessarily listed, and sometimes also by other projects, mainly by the specific design requirements. Seventh. Technical requirements 1. Assembly, all parts cleaning with kerosene, gasoline Rolling cleansing, while the existence of any debris. Oil is not painted wall corrosion coatings twice; 2. Backlash with lead wire mesh test of not less than 0.16 mm, lead wire Backlash may not exceed the smallest of the four times; 3. Used Tu-color dot test. Tooth high point of contact by not less than 40% of contact spots on teeth not less than 50 per cent. Can be used when necessary, grinding or scraping after grinding to improve contacts; 4. Bearing axial clearance should be adjusted: 40 0.05 - 0.1 mm, 55 0.08 - 0.15 mm; 5. Test reducer subdivision surface, the contact surface and seal, oil spills are not allowed. Split-Tu allowed to paint or water glass seal and allow the use of any filler; 6. Engine lubricants to the contents N100 provisions height; Below I introduce our country reduction gear the development present situation First, the domestic reduction gear many by the gear drive, the worm drive primarily, but has the power and the load ratio generally is small, or velocity ratio great and mechanical efficiency excessively low question.Moreover, in the material quality and the technological level also has many weakness, the large-scale reduction gear question is specially more prominent, the service life is not long.The domestic use large-scale reduction gear (above 500kw), many from overseas (for example Denmark, Germany and so on) imports The 60s start few tooth reduction gears and so on difference transmission, cycloid pin gear transmission, overtone transmission which produces has the velocity ratio to be big, volume small, mechanical efficiency higher merit? .But its transmission theory limit, cannot transmit the oversized power, the power all must be smaller than generally 40kw. Because in the transmission theoretically, the technological level and the material quality aspect has not broken through, therefore, has not been able fundamentally to solve the transmission power in a big way, the velocity ratio big, the volume small, the weight light, mechanical efficiency higher these requests basically.The 90s initial period, the home appears three links (gear) the reduction gear, is one kind of outside stable motion gear drive reduction gear, it may realize the great velocity ratio, transmission load ability is also big. Its volume and the weight are all lighter than the dead axle speed reducer gear, the structure is simple, the efficiency is also high.Because this reduction gear three axle parallel structure, therefore caused the power/volume (or weight) the ratio is still small.Also its input axis and the output shaft on the identical spool thread, this do not have in the use many inconveniently. Not only Beijing Institute of Technology develops in successful stable motion speed reducer gear to have outside three link reduction gear merit, but also has the big power/weight (or volume) the ratio, as well as the input axis and the output shaft on identical spool thread merit, is at the domestic leading position.The home has the minority college and the factory and mining enterprise does the research work to in stable motion gear drive certain principles, has published some research paper, in has done some work using the cycloidal tooth crop rotation stable motion reduction gear. Second, the stable motion speed reducer gear principle of work synopsis, the stable motion speed reducer gear is refers to in a counter gear transmission, a gear in the stable motion generator actuation mean plane parallel motion, meshing through tooth profile between, actuates another tooth crop rotation dead axle to decelerate the rotation, the realization reduction gear function.The stable motion generator may use the parallelogram organization, either sine organization or cross slide organization.This achievement uses the parallelogram organization to take the stable motion generator. The stable motion generator may be the hypothesized use parallelogram organization, also may be the entity use parallelogram organization.Has the practical value stable motion gear mechanism for in counter gear organization, therefore may divide into the internal tooth crop rotation stable motion movement and the external tooth crop rotation stable motion movement two kind of situations.Outside the stable motion gear reduction organization, its internal tooth crop rotation stable motion movement, actuates the external gear and makes the deceleration rotation output.This organization also calls three links (gear) the reduction gear. As a result of the internal tooth crop rotation stable motion, two crank centers establish outside the annular gear tooth ring, therefore its size is not compact, cannot solve the volume major problem.? In stable motion gear reduction, its external tooth crop rotation stable motion movement, actuation internal tooth crop rotation deceleration rotation output.As a result of the external tooth crop rotation stable motion, two crank centers can establish in the external gear tooth ring, reduced the organization overall size greatly. Because in stable motion gear mechanism transmission efficiency high, volume small, input output coaxial line, therefore by widespread application prospect. Third, this project technical characteristic and key technologies? 1. this project technical characteristics, in this new stable motion speed reducer gear and domestic and foreign had the speed reducer gear compares, has the following characteristic: (1) velocity ratio scope is big, gets up from I=10, may reach most greatly several thousand.If manufactures the great velocity ratio the reduction gear, then demonstrates this reduction gear the merit.(2) transmission power scope is big: And may connect a body manufacture with the electric motor. (3) structure simple, the volume small, the weight is light.Reduces about 1/3 compared to the existing speed reducer gear.(4) mechanical efficiency is high.95 (5) this reduction gear input axis and the output shaft are on the identical spool thread.This reduction gear see Table 1 with other reduction gear performance comparison. Because lacks the data, various reduction gears power/load ratio which in the table arranges in order is most superior.? Table 1? Each kind of reduction gear comparison model power (kw) reduction gear ratio quality (kg) QI-450? 93 31.5 1820 ZSY-250? 95 31.5 540 NGW-92 88.1 31.5 577 SEW (Germany)? 90 28.61 1300 NP-100? 100 30 400 Note: NP-100 is in the stable motion speed reducer gear, the SEW reduction gear quality contains the electrical machinery.2. this project key technologies? May know by Figure 2, in “stable motion speed reducer gear is by annular gear Z2, external gear Z1 and the parallelogram organization combination becomes.Its transmission principle is: The electrical machinery input rotary motion, the external tooth crop rotation parallel migration, its center of circle path is a circle, makes the dead axle rotation with it meshing annular gear. Because external tooth crop rotation parallel migration, therefore name stable motion gear mechanism.The gear parallel migration needs to have the auxiliary body help realization, may use (612) to sell the axis, the roller takes the hypothesized auxiliary stable motion organization, also may use the eccentric shaft to take the entity auxiliary stable motion organization.In the stable motion speed reducer gear key technologies and the essential craft are the composition parallelogram component size computation and the request processing precision, the gear teeth main parameter choice. These factors will all affect the transmission ability and the transmission quality.Overall speaking, the group cost reduction gear various spare parts all request to have the high precision, they will be deciding the reduction gear overall transmis3. this project survey this project has obtained the Chinese practical new patent, the patent number: ZL95227767.0? .? This project trial produced the first prototype from 1995 (power 2.5kW, after velocity ratio I=32), with some factory and mine cooperation, has one after another designed following several kind of different powers, the different velocity ratio reduction gear.(1) electrically operated on rollers gate uses the reduction gear, power 550W, velocity ratio I=26, is united as one body with the electrical machinery.sion quality. (2) mixer uses the reduction gear, power 370W, velocity ratio I=17.(3) some military goods use two kind of reduction gears, one kind of power 370W, velocity ratio I=23.5; Another kind of power 370W, velocity ratio I=103 two level of transmission reduction gear.(4) steel mill large package rotary abutment reduction gear, power 7.5kw, velocity ratio I=64.(5) steel mill table reduction gear, power 7.5kw, transmission I=11. In this patent foundation, has developed one kind of new ultra-large reduction gear, the power may reach 1000kw, at present is developing subminiature (outlook size for a millimeter level) miniature reduction gear. Graduation design task First, a design Monorail Driver Design reducer Second, the design of the original data 1 Monorail drive reducer Power Rating: 7.5 KW; 2 Monorail reducer drive the total transmission ratio: 15 around; 3 Monorail reducer drive car driven by the side of the output shaft from the race distance of not more than 200 mm; 4 Monorail reducer drive the total length of less than 420 mm, the width is not more than 450 mm and the total height of not more than 690 mm; Third, the equipment and the working environment This can be used to mine underground, open-air, dust, humidity, air quality, bad comparison bad work environment, and the operational requirements of a safe space. Fourth, the design requirements To meet the application requirements under the premise that the minimum cost of manufacturing. From the following aspects considered; (L) to streamline the shape of each parts, machinery simple structure; (2) merge the functions of spare parts, reducing the types or quantities of spare parts; (3) Application of the new structure, new technology, new materials, product reliability; (4) decomposition components, its assembly, the assembly of the most simple structure; (5) similar to parts of the division; (6) standards for similar products by product serial number sequence analysis; (7) The realization of the common parts of the product and standardization. (8) assembly equipment design a map (0), the Six Parts (3), the design specification of a (not less than 30,000 words), and the design of technical and economic analysis.GEAR AND SHAFT INTRODUCTIONIn the force analysis of spur gears, the forces are assumed to act in a single plane. We shall study gears in which the forces have three dimensions. The reason for this, in the case of helical gears, is that the teeth are not parallel to the axis of rotation. And in the case of bevel gears, the rotational axes are not parallel to each other. There are also other reasons, as we shall learn.Helical gears are used to transmit motion between parallel shafts. The helix angle is the same on each gear, but one gear must have a right-hand helix and the other a left-hand helix. The shape of the tooth is an involute helicoid. If a piece of paper cut in the shape of a parallelogram is wrapped around a cylinder, the angular edge of the paper becomes a helix. If we unwind this paper, each point on the angular edge generates an involute curve. The surface obtained when every point on the edge generates an involute is called an involute helicoid.The initial contact of spur-gear teeth is a line extending all the way across the face of the tooth. The initial contact of helical gear teeth is a point, which changes into a line as the teeth come into more engagement. In spur gears the line of contact is parallel to the axis of the rotation; in helical gears, the line is diagonal across the face of the tooth. It is this gradual of the teeth and the smooth transfer of load from one tooth to another, which give helical gears the ability to transmit heavy loads at high speeds. Helical gears subject the shaft bearings to both radial and thrust loads. When the thrust loads become high or are objectionable for other reasons, it may be desirable to use double helical gears. A double helical gear (herringbone) is equivalent to two heli
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