davomiy rejimda ishlovchi mexanizm uchun dvigatel quvvatini hisoblash va tanlash

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amaliy mashg'ulot № 21 mavzu: davomiy rejimda ishlovchi mexanizm uchun dvigatel quvvatini hisoblash va tanlash. 1. ishdan maqsad: ishchi mexanizmning yuklanish diagrammasi mc = f(t) bo’yicha dvigatel quvvatini hisoblashni o’rganish va katalogdan dvigatel tanlashni bilish. 1. topshiriq: davomiy rejimda ishlovchi mexanizmining yuklanish diagrammasi (21.1 – jadval) bo’yicha dvigatel quvvatini hisoblang va katalogdan dvigatel quvvatini tanlang. 21.1 – jadval: mc, nm ωm = rad/sek t, sek jm = kg∙m2 mexanizmning yuklanish diagrammasi mc = f(t) kattaliklarini o’z variantingiz uchun 21.2 – jadvaldan oling. 1. ishni bajarish tartibi: 0. davomiy rejimda ishlovchi mexanizmining yuklanish diagrammasi mc = f(t) ni quring 0. yuklanish diagrammasi bo’yicha ekvivalent momentni hisoblaymiz. mэ.с = ; 0. mexanizmni static momenti bo’yicha static quvvatni aniqlang pc.ek = mc.ek∙ωm ; 0. hisobiy quvvat bo’yicha katalogdan tezligi va quvvati yaqin bo’lgan dvigatel oling ph ≥ pd ; ωh > ωm ; 0. tanlangan dvigatel parametrlani yozing: dvigatel tipi -……………….. nominal quvvati …

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el tanlashni bilish. ii. topshiriq: davomiy rejimda ishlovchi mexanizmining yuklanish diagrammasi (21.1 – jadval) bo’yicha dvigatel quvvatini hisoblang va katalogdan dvigatel quvvatini tanlang. 21.1 – jadval: m c , nm ω m = rad/sek t, sek j m = kg • m 2 mexanizmning yuklanish diagrammasi m c = f(t) kattaliklarini o’z variantingiz uchun 21.2 – jadvaldan oling. iii. ishni bajarish tartibi: 1. davomiy rejimda ishlovchi mexanizmining yuklanish diagrammasi m c = f(t) ni quring 2. yuklanish diagrammasi bo’ yicha ekvivalent momentni hisoblaymiz. m э . с = ? ?? 1 2 ?? 1 + ?? 2 2 ?? 2 + ?? 3 2 ?? 3 + ?? 4 2 ?? 4 + ?? 5 2 ?? 5 + ?? 6 2 ?? 6 + ?? 7 2 ?? 7 ?? 1 + ?? 2 + ?? 3 + ?? 4 + ?? 5 + ?? 6 + ?? 7 …

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amaliy mashg'ulot № 21 mavzu: davomiy rejimda ishlovchi mexanizm uchun dvigatel quvvatini hisoblash va tanlash. 1. ishdan maqsad: ishchi mexanizmning yuklanish diagrammasi mc = f(t) bo’yicha dvigatel quvvatini hisoblashni o’rganish va katalogdan dvigatel tanlashni bilish. 1. topshiriq: davomiy rejimda ishlovchi mexanizmining yuklanish diagrammasi (21.1 – jadval) bo’yicha dvigatel quvvatini hisoblang va katalogdan dvigatel quvvatini tanlang. 21.1 – jadval: mc, nm ωm = rad/sek t, sek jm = kg∙m2 mexanizmning yuklanish diagrammasi mc = f(t) kattaliklarini o’z variantingiz uchun 21.2 – jadvaldan oling. 1. ishni bajarish tartibi: 0. davomiy rejimda ishlovchi mexanizmining yuklanish diagrammasi mc = f(t) ni quring 0. yuklanish diagrammasi bo’yicha ekvivalent momentni hisoblaymiz. mэ.с = ; 0. mexa...

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