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Qo'l tormozi valfi nima

1.Qo'l tormozi klapan nima
Qo'lni boshqarish valfi avtomobilni xizmat ko'rsatish tormozi jarayonida to'xtash, to'xtash tormozi va egzoz tormozining asosiy qurilmasi.
Avtotransportning to'xtash tormozi to'liq bo'shatilgan va avtomobil ishlayotgan holatda;Tutqich qulflash holatida bo'lsa, poezd to'liq tormozlangan holatda;Tutqich nazorat holatida bo'lsa, traktorning to'xtash tormozi tormoz holatida, lekin treyler to'liq bo'shatilgan tormoz holatida.
Tutqich harakatlanayotganda tutqich kamerasi katta porshenni pastga suradi, muvozanat prujinasini bosadi, pistonni pastga suradi, egzoz klapanini yopadi, qo'shimcha valfning kirish klapanini to'liq ochadi va bo'shliqdagi siqilgan havo bo'shliqqa kiradi. , va keyin ikki yo'lga bo'linadi.Bir yo'l traktorning to'xtash tormozini bo'shatish uchun og'iz orqali bahor tormoz xonasiga kiradi;Treyler to'xtash tormozini bo'shatish uchun port orqali treyler tormoz valfini kiriting.Tutqich diapazonda bo'lganda, mashinaning to'xtash tormozi to'liq chiqariladi.
2.Qo'lda boshqarish valfining funktsiyasi
Dvigatelning tormozlanishi egzoz tormozidir.Og'ir transport vositalari uchun tormozlash asosan xizmat tormozini o'z ichiga oladi;Avtoturargoh, to'xtash tormozi, egzoz tormozi.Xizmat tormozi ikki kamerali tormoz asosiy valfi orqali amalga oshiriladi, to'xtash tormozi va to'xtash tormozi qo'lda boshqaruv valfi orqali amalga oshiriladi va egzoz tormozi egzoz tormozi kelebek valfi orqali amalga oshiriladi.Egzoz tormozi kelebek valfi dvigatelning egzoz shlangining orqasida o'rnatiladi.Bosish tugmasi valfi ishlaganda, havo bosimi egzoz tormozi kelebek klapanining ishchi tsilindridan o'tib, ishlaydigan silindrdagi havo pistonini harakatga keltiradi va shu bilan kapalak klapan diskini 90 gradusga aylantirish uchun surish tayog'ini haydab, egzozni yopadi. shlang, vosita chiqindisini blokirovka qilish.Dvigatel egzozi bloklanganda, dvigatel tsilindridagi piston normal harakatlana olmaydi va u bu qarshilikka qarshi turishi kerak, Shunday qilib, havo qarshiligi ta'sirida dvigatel pistonining ta'siri kamayadi.Tortishish kuchi tufayli avtomobil tezligi pasayadi.
3.Avtomatik qo'lda boshqaruv valfining umumiy xatolari
3-1 Tutqich harakatlanayotganda katta piston, muvozanat kamon va muvozanat pistoni yuqoriga qarab harakatlanadi, egzoz valfi ochiladi va kirish valfi yopiladi;Qo'shimcha valfning kirish valfi yopiq.Chiqish havo bosimi P, I “22 tutqich burchagi ortishi bilan chiziqli ravishda nolga tushadi.
3-2 Tutqich 730 dan 820 gacha bo'lganida, qo'shimcha valfning havo kirish valfi 6 ochiladi va treylerning tormozlash effekti chiqariladi.
3-3Avtomobil rampada faqat traktorning to'xtash tormozi ostida to'xtab turishi mumkinligini tekshiring.Tutqich qo'yib yuborilganda, tutqich avtomatik ravishda to'xtash tormozini qulflash holatiga qaytadi.
3-4 Zararlangan qismlarni tekshirish va pastki tana va o'rta tana orqali almashtirish mumkin.
3-4 Agar qo'lda boshqarish klapanining ichida turli xil narsalar bo'lsa, O-ring shikastlangan, piston eskirgan, ichki bo'shliq yoki ba'zi bir qismi tiqilib qolgan yoki tiqilib qolgan bo'lsa, oddiy tormozlash effekti ishlab chiqarilmaydi.
3-5Muammolarni bartaraf etish:
1.(1) Qo'lda boshqarish valfining pastki uchi qopqog'ining murvatlarini echib oling, ichki kameradagi pistonni chiqarib oling, tekshiring, tozalang va oqilona yig'ilishni qiling.
2.(2) Qo'lda boshqarish klapanining belgilangan foydalanish chegarasi taxminan 50000 km.Uni "har tomonlama tekshirish" uchun qismlarga ajratish va texnik xizmat ko'rsatish uchun qulay sharoitlarni ta'minlash uchun maxsus ta'mirlash to'plami bilan jihozlangan bo'lishi kerak.
4. Qo'lda boshqaruv klapanining funktsiyasi
Qo'lda boshqaruv valfi kabinadagi almashtirish tugmachasiga ulangan.Shlangi yog'ning konversiyasini nazorat qilish uchun valf tanasidagi g'altakning valfining harakati qo'lda boshqariladi.Asosiy yog 'bosimi qo'lda boshqaruv klapaniga beriladi va asosiy yog' pallasining bosim moyi surma valfining harakati orqali turli xil ish sharoitida mos keladigan yog' konturiga etkazib beriladi.
5. Qo'lda vana interfeysi
Xaltadan changni tozalash uchun ko'taruvchi valfning boshqaruv qismi havo tsilindridan, elektromagnit teskari valfdan, valf plitasidan va ko'taruvchi novdadan iborat.
Kalit chegarasi zarur bo'lganda, aniqlash kaliti qo'shilishi mumkin va silindrdagi magnit kalit chegarani aniqlash uchun ham ishlatilishi mumkin.Umumiy bypass klapanida sayohatni aniqlash mavjud.
Elektr boshqaruvida elektromagnit teskari valfni boshqarish uchun faqat bitta nazorat ta'sir chizig'i ishlatiladi.Chiziqlar soni tanlangan teskari valfga muvofiq aniqlanadi.
e'tibor talab qiladigan masalalar:
Ba'zi joylarda harorat chegarasi tufayli poppet valfi havo tsilindrining o'rniga elektr valfni ham tanlashi mumkin.Aksariyat poppet klapanlari havo tsilindri bilan boshqariladi.
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Xabar vaqti: 2023 yil 18-yanvar