An saba amfani da gyare-gyaren sarrafawa a cikin kayan aikin masana'antu da na farar hula. Amfani da su daidai yana da mahimmanci ga amintaccen aiki da ingantaccen kayan aiki. Wannan labarin yana nazarin matakan aiki, yanayin aikace-aikacen, kiyaye aminci, da sauransu, kuma yana haɗa ainihin bayanai don samar da jagora mai amfani ga masu aiki.
Abubuwan da ke ciki
1. Basic tsari na handwheel aiki
(I) Tsarin hannu da ka'ida
(II) daidaitattun matakan aiki
2. Aikace-aikacen hannu a yanayi daban-daban
(I) Mahimman wuraren aiki a fagen masana'antu
(II) Halayen amfani a wuraren farar hula
3. Amincewa da kiyaye amfani da ƙafar hannu
(I) Ƙayyadaddun aminci na aiki
(II) Kulawa na yau da kullun
(I) Tsarin hannu da ka'ida
Dabarar hannu tana kunshe da faifan dabaran, magana da hannun riga mai haɗawa. Ya dogara da ƙa'idar lefa don canza ƙarfin mutum zuwa jujjuyawar juyi don fitar da na'urar. Girman diski na dabaran da kayan yana shafar ƙwarewar aiki. Misali, keken hannu na ƙarfe tare da diamita na 200mm zai iya rage ƙarfin aiki da 30% idan aka kwatanta da samfurin 150mm; Nau'in zamewa a saman saman na iya ƙara juzu'in da kashi 25% don tabbatar da kwanciyar hankali na aiki.
(II) daidaitattun matakan aiki
Pre{0}Tsarin aiki: Kafin amfani, ya zama dole a tabbatar da cewa wheel wheel da abubuwan haɗin ba su kwance ko nakasa ba, kuma saman yana da tsabta kuma babu mai. Dangane da kididdigar masana'antu, kashi 80% na gazawar ƙafafun hannu ana haifar da su ta hanyar saɓon haɗi. Daidaitaccen dubawa zai iya rage haɗarin kayan aiki ta rage lokacin da kashi 40%.
Farawa aiki: Bi ka'idar "hannun agogo don rufewa da agogon agogo don buɗewa" kuma kunna ƙafar hannu a koyaushe. Nazarin ya nuna cewa ci gaba da aiki da sauri zai iya tsawaita rayuwar sabis na keken hannu da kashi 20% kuma ya guje wa lalacewar abubuwan da ke faruwa saboda tsananin karfin gaske nan take.
Matsayi da kullewa: Bayan isa wurin da aka yi niyya, ana buƙatar gyara wasu ƙafafun hannu tare da saka fil ko kulle goro. Bayanai na zahiri daga masana'antar sinadarai sun nuna cewa bayan amfani da na'urar kullewa, aikin kuskuren kayan aiki ya ragu daga 15% zuwa 5%.
Aikace-aikacen hannu a cikin yanayi daban-daban
(I) Mahimman wuraren aiki a fagen masana'antu
A cikin masana'antun man petrochemical da wutar lantarki, ana amfani da ƙafafun hannu don rufe gaggawa{0}kashe bawuloli da sarrafa bawuloli. Ɗaukar tsayin diamita na mm 300{3}} matsi na hannu a matsayin misali, ana buƙatar sarrafa ƙarfin aiki a 50-80N・m. Sama da -Aikin juzu'i zai ƙara haɗarin zubar bawul da sau 4. Ana amfani da ƙafafun hannu masu nauyi na ƙarfe a cikin irin waɗannan yanayi, waɗanda ba su da juriya kuma suna iya jurewa babban matsi. ;
(II) Halayen amfani da wuraren farar hula
Yanayin farar hula kamar samar da ruwa da tsarin magudanar ruwa da kula da lif suna ba da kulawa sosai ga dacewar aiki. Misali, Wuta hydrant handwheel yana ɗaukar ƙira mai sauri 90{2}} buɗewa, wanda za'a iya buɗewa kuma a rufe a cikin daƙiƙa 3; Ƙarfin aiki na ƙafar ƙafar filastik mai haske shine kawai 10-20N・m, wanda ya dace don kulawa yau da kullum.
| Yanayin aikace-aikace | Nau'in abin hannu | Kewayon ƙarfin aiki (N・m) | Lokacin aiki na yau da kullun |
| Petrochemical bawuloli | Dabarun hannu na ƙarfe mai nauyi | 50 - 80 | 15 - 30 seconds |
| Samar da ruwa da bututun magudanar ruwa | Wutar hannu na roba mai haske | Oktoba 20 | 5 - 10 seconds |
| Yanke gaggawa{0}} don kashe gobara | Saurin sakin keken hannu{{0} | 30 - 50 | 3 - 5 seconds |
(I) Ƙayyadaddun aminci na aiki
Lokacin aiki da keken hannu mai jujjuyawa mai tsayi -, an haramta shi sosai sanya safar hannu don hana haɗari. Alkaluma sun nuna cewa kashi 60% na hadurran raunin hannu na faruwa ne sakamakon sanya safar hannu ba bisa ka'ida ba. Lokacin aiki a tudu, dole ne a yi amfani da igiyoyin tsaro don tabbatar da amincin ma'aikata.
(II) Kulawa na yau da kullun
Ana ba da shawarar a duba lalacewa da maƙarƙashiyar ƙafar hannu kowane kwata kuma a sa mai a kowace shekara. Bayanai daga masana'antar karfe sun nuna cewa daidaitaccen kulawa na iya haɓaka matsakaicin rayuwar sabis na keken hannu daga shekaru 5 zuwa shekaru 8, yadda ya kamata rage farashin maye gurbin kayan aiki.
Tare da haɓaka bayanan masana'antu, ƙafafun hannu na iya haɗa na'urori masu auna firikwensin matsa lamba, saka idanu mai ƙarfi da sauran ayyuka a nan gaba don cimma ainihin bayanan aiki da gargaɗin kuskure, ƙara haɓaka aminci da matakin hankali na sarrafa kayan aiki. Daidaita yadda ake amfani da hanyoyin kula da ƙafafun hannu yana da matukar mahimmanci don tabbatar da kwanciyar hankali na kayan aiki da rage haɗarin aminci.
