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課程設計-二級圓柱齒輪主減速器設計(編輯修改稿)

2025-02-09 19:18 本頁面
 

【文章內(nèi)容簡介】 七、聯(lián)軸器的選擇計算低速軸與工作機鼓輪軸用聯(lián)軸器連接,由于彈性柱銷聯(lián)軸器結構簡單,更換柱銷方便,緩和沖擊,吸收振動,故選用彈性柱銷聯(lián)軸器。求計算轉(zhuǎn)矩 軸III轉(zhuǎn)矩為 由《機械設計教程》表132查得工作機為輸送機時,工作情況系數(shù),故計算轉(zhuǎn)矩為確定型號 由《機械基礎設計課程設計》 查得符合軸直徑為60mm的聯(lián)軸器選取型號為HL5彈性柱銷聯(lián)軸器,其公稱轉(zhuǎn)矩,軸材料為鋼時,許用轉(zhuǎn)速為4000r/min,允許的軸孔直徑在之間,故能滿足工作機與減速器聯(lián)接工作需要,從而確定聯(lián)軸器型號為HL4聯(lián)軸器 GB501485八、鑄件減速器機體結構尺寸計算表及附件的選擇鑄件減速器機體結構尺寸計算表名稱符號減速器及其形式關系機座壁厚δ+3mm=,取10mm機蓋壁厚δ1+3=6 mm8mm,取10mm機座凸緣厚度b=12mm機蓋凸緣厚度b1=15mm機座底凸緣厚度p=25mm地腳螺釘直徑df+12=地腳螺釘數(shù)目na250mm,n=4軸承旁連接螺栓直徑d1=12mm取12mm機蓋與機座連接螺栓直徑d2(~)df=8mm取8mm連接螺栓d2的間距l(xiāng)335mm窺視孔蓋螺釘直徑d4(~)df=68mm取M6定位銷直徑ddf、dd3至外機壁距離c122mmdd2至凸緣邊緣距離c218mm軸承旁凸臺半徑R1R1=C2=20外機壁至軸承座端面距離L1c1+c2+(5~8)=50mm內(nèi)機壁至軸承座端面距離L2δ+c1+c2+(5~8)=60mm大齒輪頂圓與內(nèi)機壁距離△1≥=12mm取12mm齒輪端面與內(nèi)機壁距離△2≥δ=10mm取12mm機蓋、機座肋厚m1,mm1=m≈=,減速器附件的選擇,在草圖設計中選擇包括:軸承蓋,窺視孔,視孔蓋,壓配式圓形油標,通氣孔,吊耳,吊鉤,螺塞,封油墊,氈圈等。九、潤滑與密封(潤滑與密封方式的選擇、潤滑劑的選擇)雙級減速器內(nèi)傳動零件(齒輪)采用浸油潤滑,,采用的浸油深度應為輪齒半徑。由于低級速v2m/s,故減速器滾動軸承采用脂潤滑。十 小結 這次的課程設計,我有了很大的收獲,通過系統(tǒng)地運用學過的相關知識來解決問題,不管是在結構設計中對零件的強度進行校核,還是在用CAD繪圖的過程中,我發(fā)現(xiàn)都有很多要注意的細節(jié)。從按照雙級減速箱的傳遞效率、傳遞功率等工作要求到對各個零件進行機構設計,會涉及多方面的事情,既要考慮制造成本,又要考慮工藝的合理性,在計算的過程中也比較容易出錯。很多數(shù)據(jù)要通過設計手冊和課本查取,雖然在做這個課程設計的過程中會遇到很多的困難,但一步一腳印,不懂得地方經(jīng)過請教老師或者和同學討論之后,還是可以弄明白的。完成這次的課程設計,我發(fā)現(xiàn)設計一個零部件真不是一件容易的事情,零件的工作條件,工作要求和使用壽命都要考慮,當然,箱體的設計也是很有講究的,通過參考前人的經(jīng)驗,能夠更好的設計出好的箱體。因為零件圖和裝配圖都是用CAD來作圖的,便很好地復習了一遍CAD的使用操作功能。 g an employment tribunal claimEmployment tribunals sort out disagreements between employers and employees.You may need to make a claim to an employment tribunal if: you don39。t agree with the disciplinary action your employer has taken against you your employer dismisses you and you think that you have been dismissed unfairly.For more information about dismissal and unfair dismissal, seeDismissal.You can make a claim to an employment tribunal, even if you haven39。tappealedagainst the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any pensation awarded to you as a result of your failure to appeal.Remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are plaining about happened. If your application is received after this time limit, the tribunal will not usually accept it.If you are worried about how the time limits apply to you, take advice from one of the organisations listed underFurther help.Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation.Most people find making a claim to an employment tribunal challenging. If you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the organisations listed underFurther help.If you are being represen
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