elektr dvigatelli yuk ko'targichlar
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mundarija kirish…………………………………………………………………………...3 i bob. yuk ko’tarishda ishlatiladigan kranlarning asosiy tasnifi……………………………………………………………….5 1.1 kranlarning asosiy tasnifi……………………………………………………..5 1.2 yuk ko‘tarish va tashishda qo‘llaniladigan mashina-mexanizmlar…………..14 ii bob. tayanchli yuk ko’taruvchi elektro dvigatelli ko’targich………………………………………...………………………...22 2.1 kranlarning turli xil o'rnatish turlari………………………………………….22 2.2 og'ir yuk ko'tarishni modernizatsiya qilish: elektr dvigatellari bilan ko'taruvchilarning evolyutsiyasi………………………………………………….27 xulosa…………………………………………………………………………31 foydalanilgan adabiyotlar………………………………………..33 kirish mavzuning dolzarbligi. elektr dvigatelli yuk ko'targichlar mavzusi bir necha sabablarga ko'ra bugungi sanoat landshaftida juda dolzarbdir: 1. xavfsizlik:...
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