{"id":6981,"date":"2021-08-25T09:09:58","date_gmt":"2021-08-25T09:09:58","guid":{"rendered":"https:\/\/www.hndfcrane.com\/posts\/overhead-bridge-crane-installation-commissioning\/"},"modified":"2024-09-09T07:27:37","modified_gmt":"2024-09-09T07:27:37","slug":"overhead-bridge-crane-installation-commissioning","status":"publish","type":"posts","link":"https:\/\/www.hndfcrane.com\/uz\/posts\/overhead-bridge-crane-installation-commissioning\/","title":{"rendered":"Ko&#39;prikli kranni o&#39;rnatish va ishga tushirish"},"content":{"rendered":"<p><p><img loading=\"lazy\" decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/08\/eot-crane-banner-16.jpg\" alt=\" kengligi =\"876\" height=\"389\" class=\"alignnone size-full wp-image-12498\" \/>[notphone][symmen_model id=11 cat=news_Info][\/notphone][telefon][symmen_model id=12 cat=m-news_share][\/phone]<\/p>\n<div>O&#39;zgaruvchan chastota tezligi <a href=\"https:\/\/www.hndfcrane.com\/uz\/single-girder-overhead-cranes\/\">bir to&#39;sinli ko&#39;chma kran<\/a> o&#39;rnatish, ishga tushirish, foydalanish va texnik xizmat ko&#39;rsatish jarayonida quyidagi ehtiyot choralariga qat&#39;iy rioya qilish kerak, aks holda bu shaxsiy jarohatlar va jihozlarning shikastlanishiga olib keladi.<\/div>\n<p><span>Nazorat tizimiga quvvat berilgandan so&#39;ng, ishga tushirish va texnik xizmat ko&#39;rsatish xodimlari juda ehtiyot bo&#39;lishlari kerak. Elektr ta&#39;minotini o&#39;chirib qo&#39;ygandan so&#39;ng, inverter zaryadlash indikatori faqat susayganidan keyin kabinetdagi komponentlarga tegishi mumkin. Kirish quvvatini inverter chiqish terminallari u, V va W ga ulash taqiqlanadi, aks holda inverter yonib ketadi. U, V va w chiqish terminallari orasidagi izolyatsiya qarshiligini erga ulash taqiqlanadi, aks holda inverter buziladi. U, V, w chiqish terminallari orasidagi izolyatsiya qarshiligini yoki megohmmetr bilan erga o&#39;lchash taqiqlanadi, aks holda inverter shikastlanishi mumkin.<\/span><\/p>\n<p>Chastotani o&#39;zgartirgich bir nechta parallel motorlarni boshqarganda, masalan, bitta to&#39;sinli ko&#39;prikli kranning ishlashini tashkil etishda, chastota konvertori va har bir dvigatel o&#39;rtasidagi o&#39;rni isitish kerak bo&#39;lsa, ma&#39;lum bir dvigatelda chastota konvertorining ishlashini to&#39;xtatib turish uchun o&#39;rni kontakti boshqaruv pallasiga kirishi kerak, vosita haddan tashqari qizib ketishi. Yuk ko&#39;tarish tashkiloti inverterni faqat bitta dvigatelni boshqarish uchun ishlatganda, chunki inverter haddan tashqari oqim, qizib ketish va hokazo kabi turli xil parvarishlash funktsiyalariga ega va shuning uchun termal o&#39;rni o&#39;rnatish kerak emas.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/08\/overhead-bridge-crane-installation-and-commissioning1.jpg\" alt=\" kengligi =\"880\" height=\"660\" class=\"alignnone wp-image-12499\" \/><\/p>\n<p>Yagona to&#39;sinli kranlarni ishlab chiqarishda ishlatiladigan po&#39;lat plitalarning qalinligi odatda 6-12 mm, shuningdek, po&#39;lat plitaning o&#39;zi salbiy davlat xizmati. Shunday qilib, bitta to&#39;sinli ko&#39;chma krandagi zang qatlamini e&#39;tiborsiz qoldirmaslik kerak. Birgalikda, oksidli qatlam va zangning kranning bo&#39;yash hayotida paydo bo&#39;lishi ham katta ta&#39;sir ko&#39;rsatadi, chunki zang qatlami va oksidi qatlami yiqilib tushishi oddiy, shuning uchun bo&#39;yashdan oldin oksid qatlamini va zang qatlamini yo&#39;q qilmasangiz, bo&#39;yoqning orqa tomonida oksidli qatlam paydo bo&#39;ladi, qobiq paydo bo&#39;ladi, qobiq paydo bo&#39;ladi va hokazo. Natijada, po&#39;latdan tashqi ko&#39;rinish parvarish qilishni yo&#39;qotadi va keyinchalik zanglaydi, bu esa kranning strukturaviy xavfsizligiga tahdid soladi.<\/p>\n<p>\u0130nverterni ulash tugallangandan so&#39;ng, birinchi navbatda, har bir chiziqning simini ulashning to&#39;g&#39;riligini tekshirish kerak. To&#39;g&#39;ri ulanishni ta&#39;minlash uchun avval har bir tashkilotning inverterining elektr ta&#39;minotini uzib qo&#39;ying va keyin umumiy quvvat manbaini ulang. Asosiy boshqaruv sxemasi, cheklovchilar, yordamchi quvvat manbai, yorug&#39;lik quvvati va boshqa yordamchi quvvat manbalarining to&#39;g&#39;riligini tekshiring va navbat bilan tegishli tashkilotlarning elektr ta&#39;minotini ulang va inverter va uning tezligini nazorat qilish tizimini disk raskadrovka qiling.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"\/wp-content\/uploads\/2021\/08\/overhead-bridge-crane-installation-and-commissioning2.jpg\" alt=\" kengligi =\"880\" height=\"660\" class=\"alignnone wp-image-12500\" \/><\/p>\n<p>Yagona to&#39;sinli ko&#39;prikli kranning asosiy tuzilishi po&#39;lat konstruktsiyali payvandlangan qismlar bo&#39;lib, keng tarqalgan bo&#39;lib foydalaniladigan ishlab chiqarish materiallari po&#39;lat plitalar, bo&#39;limlar va boshqalar. Ushbu materiallar odatda po&#39;lat bozoridan sotib olinadi, zang qatlami bo&#39;ladi. Zang, tashqi qism havodagi kislorod va suv bilan reaksiyaga kirishganda hosil bo&#39;lgan oksidlanish qatlamidan kelib chiqadi.<\/p>\n<p>Yagona to&#39;sinli ko&#39;prikli kranlarni ishlab chiqarish uchun po&#39;lat payvandlashdan oldin oldindan ishlov beriladi, ya&#39;ni tashqi pardozlash Sa2,5 spetsifikatsiyasiga etadi. Kran purkagichining zangni yo&#39;qotish darajasi va tashqi p\u00fcr\u00fczl\u00fcl\u00fc\u011f\u00fc talablarini qondirish uchun qo&#39;lda zangni olib tashlash talablarni qondira olmaydi. P\u00fcsk\u00fcrtme usulini qo&#39;llash kerak, ya&#39;ni quruq qumtosh, o&#39;q bilan portlatish va o&#39;q bilan tozalash. Uch usulning eng uzuni portlatishdir. O&#39;q otishdan so&#39;ng, 2 soat ichida po&#39;latning tashqi qismi zangga qarshi astar bilan qoplanishi kerak. Epoksi sinkga boy primer Xitoyda keng tarqalgan bo&#39;lib foydalaniladigan primer hisoblanadi. Primer po&#39;latning keyingi payvandlashiga juda oz ta&#39;sir qiladi va po&#39;latdan tashqi ko&#39;rinishini uzoqroq vaqt davomida saqlaydi.<\/p><\/p>","protected":false},"excerpt":{"rendered":"Yagona to&#39;sinli kranlarni ishlab chiqarishda ishlatiladigan po&#39;lat plitalarning qalinligi odatda 6-12 mm, shuningdek, po&#39;lat plitaning o&#39;zi salbiy davlat xizmati. Shunday qilib, bitta to&#39;sinli ko&#39;taruvchi krandagi zang qatlamini e&#39;tiborsiz qoldirmaslik kerak. Birgalikda kranda oksidli qatlam va zang paydo bo&#39;lishi [...]","protected":false},"featured_media":6001,"parent":0,"menu_order":0,"template":"","posts_category":[197],"posts_tag":[74,75],"acf":[],"_links":{"self":[{"href":"https:\/\/www.hndfcrane.com\/uz\/wp-json\/wp\/v2\/xmxposts\/6981"}],"collection":[{"href":"https:\/\/www.hndfcrane.com\/uz\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.hndfcrane.com\/uz\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":1,"href":"https:\/\/www.hndfcrane.com\/uz\/wp-json\/wp\/v2\/xmxposts\/6981\/revisions"}],"predecessor-version":[{"id":9197,"href":"https:\/\/www.hndfcrane.com\/uz\/wp-json\/wp\/v2\/xmxposts\/6981\/revisions\/9197"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hndfcrane.com\/uz\/wp-json\/wp\/v2\/media\/6001"}],"wp:attachment":[{"href":"https:\/\/www.hndfcrane.com\/uz\/wp-json\/wp\/v2\/media?parent=6981"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.hndfcrane.com\/uz\/wp-json\/wp\/v2\/posts_category?post=6981"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.hndfcrane.com\/uz\/wp-json\/wp\/v2\/posts_tag?post=6981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}