Elektr texnikasi elektr mexanikasi

Tohirjonov Z. Z.			Islom Karimov nomidagi TDTUOF KEM 5312200 № (214-19) 2021y. KI
varaq
		G’aniyev S. T.				7
O’zg.	varaq	Hujjat №.	Imzo	Sana

1. Yuritma motori quvvatini va qarshilik momentlarni hisoblash Podshipnikning sirpanish momentini quyidagi ifoda bilan hisoblaymiz G  d   M   ц ц ^СИР2 , ^bu^erda^ц ^-^podshipnikning sirpanish^koeffistienti,^^^0,015^^0,15^; ц ^G ^yuk va aravachaning yig’indi og’irligi, ^G ^^2(^GАРАВА ^^GЮК ^); ^dц ^podshipnik sapfasi diametri. Podshipnikning sirpanshida sarf bo’ladigan quvvat isrofi G  d    V    ц ц арава сирп   D , гил bu erda ^^foydali ish koeffistienti, ^^^0,8; Dg’il – g’ildirakning diametri. Tebranma moment ^МСИР ^^G ^^f^,, bu erda ^f^tebranshning proporstionallik koeffistienti, ^f^^(5^^12)^^10^^4^. Aravachaning yuki bo’lgan holdagi yig’indi moment M ^`  M  M  (G  G )  d    2(G  G )  f.. СТ CT CK арава ЮК ц ц арава .юю Aravachaning yuki bo’lgan holdagi yig’indi quvvati 2G G  d    V 4(G  G ) f V `      ^арава^юк^ц^ц^арава ^арава^юк^арава ^СТ CT CK  D   D . гилд гилд Aravachaning yuki bo’lmagan holdagi yig’ma moment M ^`  G  d    2G  f . СП арава ц ц арава Aravachaning yuki bo’lmagan holdagi yig’ma quvvati
		Tohirjonov Z. Z.			Islom Karimov nomidagi TDTUOF KEM 5312200 № (214-19) 2021y. KI	varaq
		G’aniyev S. T.				8
O’zg.	varaq	Hujjat №.	Imzo	Sana

2G  d    V 4  G f V БЮ  ^арава^ц^ц^арава ^арава^арава. ^СТ  D   D -илд илд Hisob ishlari. Berilgan: ^Garava^= 2 Gyuk = 47 Dgil = 0.9 m dst = 0.1 m Varava = 1.33 m/sek Podshipnikning sirpanish momentini quyidagi ifoda bilan hisoblaymiz G  d   M  ^ц ц  ^98^^0.1^^0.15 0.735kNm СИР 2 2 ^bu erda^ц ^-^podshipgnkning sirpanish^koeffistienti,^^^0,015^^0,15^; ц ^G ^yuk va aravachaning yig’indi og’irligi, G  2(GАРАВА  GЮК )  2(2  47)  98kN ^dц ^podshipnik stapfasi diametri. Podshipnikning sirpanishida sarf bo’ladigan quvvat isrofi G  d    V    ^ц ц^арава 98  0.1 0.151.33  2.72Vt ^сирп  D 0.8  0.9 ^, гил bu erda ^^foydali ish koeffistienti, ^^^0,8; Dg’il – g’ildirakning diametri. 4 Tebranma moment МТеб  G  f  98 12 10  0.11kNm
		Tohirjonov Z. Z.			Islom Karimov nomidagi TDTUOF KEM 5312200 № (214-19) 2021y. KI	varaq
		G’aniyev S. T.				9
O’zg.	varaq	Hujjat №.	Imzo	Sana

bu erda ^f^tebranshning proporstionallik koeffistienti, f  (5 12) 10^^4. Aravachaning yuki bo’lgan holdagi yig’indi moment M ^`  M  M  (G  G )  d    2(G  G )  f  СТ CT CK арава ЮК ц ц арава .юю  (2  47)0.1 0.15  2(2  47) 12 10^-4  0.85kNm ^. Aravachaning yuki bo’lgan holdagi yig’indi quvvati 2G G  d    V 4(G  G ) f V `      ^арава^юк^ц^ц^арава ^арава^юк^арава СТ CT CK   D   D гилд ЮФилд  2  (2  47)0.1 0.15 1.33  4  (2  47)12 10^^4 1.33  3.15kVt 0.8  0.9 0.8  0.9 Aravachaning yuki bo’lmagan holdagi yig’ma moment M ^`  G d    2G  f  2  0.1 0.15  2  2 12 10^^4  0.035kNm СП арава ц ц арава Aravachaning yuki bo’lmagan holdagi yig’ma quvvati 2G d    V 4 G f V БЮ  ^арава^ц^ц^арава ^арава^арава ^СТ   D   D -илд илд 2  2  0.1 0.151.33  4  2 12 10^^4 1.33  0.12kVt 0.8  0.9 08 0.9 2. Ko’priksimon kranning harakatlanuvchi aravachasi elektr yuritmasining yuklanish diagrammasi Harakatlanuvchi aravacha elektr yuritmasi diagrammasini qurish uchun quyidagi vaqt ko’rsatkichlarini aniqlash kerak bo’ladi: t1 – ilgakka ilingan yuukni ko’tarish uchun ketgan vaqt, t2 – aravachaning yuk bilan harakatlanish vaqti, t3 – kran ko’prigining harakatlanish vaqti, t4 – yukning tushirlish vaqti, t5 – yuksiz ilgakni ko’tarish vaqti,
		Tohirjonov Z. Z.			Islom Karimov nomidagi TDTUOF KEM 5312200 № (214-19) 2021y. KI	varaq
		G’aniyev S. T.				10
O’zg.	varaq	Hujjat №.	Imzo	Sana

t6 – kran ko’prigining orqaga qaytish vaqti, t7 – aravachanng orqaga qaytish vaqti, t8 – ilgakni tushirish va ilgakka yuk ortish uchun ketadigan vaqt. 2.56 2.23 ^024 18.75 96 24 24 96 18.75 24 ^t,^[s] 2 – rasm. Ko’priksimon kraning harakatlanuvchi aravachasi elektr yuritmasining yuklanish diagrammasi t3  t6 , t1  t4  t5  t8 , Bu erda L t2  t7  V . T Цikl vaqti: TЦ  t1  t2  t3  t4  t5  t6  t7  t8 [s]. Aravacha elektr yuritmasining ulanish vaqti davomiyligi ПВ  t 2  t7 . TЦ Aravacha elektr yuritmasining motori quvvati quyidagi formula bilan hisoblanadi
		Tohirjonov Z. Z.			Islom Karimov nomidagi TDTUOF KEM 5312200 № (214-19) 2021y. KI	varaq
		G’aniyev S. T.				11
O’zg.	varaq	Hujjat №.	Imzo	Sana

  К   ^ПВ,[кВт]; ^M ЗЎРТ .КВ ПВ НОМ Ю.2  t  БЮ.2  t bu erda   ^CT ^2 ^CT ^7 ,[кВт]; ЎРТ .КВ t  t 2 7 K3 = 1,2 – 1,7 – motorning dinamik rejimdagi yuklanishni hisobga oluvchi zahira koeffistienti. Hisoblangan ^M quvvat asosida katalogdan mos motor tanlanadi. Reduktorning uzatish sonini hisoblaymiz i  ^НОМ ^^Dгиа ^ред2 V , арава bu erda ^НОМ ^tanlangan motorning nominal burchak tezligi,   ^^^n^ном,[с^^1]. НОМ 30 Motorning nisbiy nominal sirpanishi s  ^0 ^^НОМ . НОМ  0 Elektr yuritma motori o’qiga keltirilgan yig’indi inerstiya momenti J  2  JM ,[кг  м ].. 2 Elektr yuritma motori o’qiga keltirilgan yig’indi qarshilik momenti (yuk bor holati uchun) М ` MC. Юк C.Ю. , Nm , iред  (yuksiz holati uchun) ` М ` MC. Юксиз C.Ю.Юкс , Nm iред 