{"id":1939,"date":"2026-04-09T06:06:55","date_gmt":"2026-04-09T06:06:55","guid":{"rendered":"https:\/\/wormwheelgear.top\/?p=1939"},"modified":"2026-04-09T06:06:55","modified_gmt":"2026-04-09T06:06:55","slug":"worm-gear-bearing-selection-calculating-thrust-load-radial-load-and-l10-service-life","status":"publish","type":"post","link":"https:\/\/wormwheelgear.top\/cs\/worm-gear-bearing-selection-calculating-thrust-load-radial-load-and-l10-service-life\/","title":{"rendered":"V\u00fdb\u011br lo\u017eiska \u0161nekov\u00e9ho p\u0159evodu \u2013 V\u00fdpo\u010det axi\u00e1ln\u00edho zat\u00ed\u017een\u00ed, radi\u00e1ln\u00edho zat\u00ed\u017een\u00ed a \u017eivotnosti L10"},"content":{"rendered":"
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Znalostn\u00ed \u0159ada \u00b7 B10 \u00b7 Stroj\u00edrenstv\u00ed h\u0159\u00eddel\u00ed a lo\u017eisek<\/p>\n

\u0160nekov\u00fd p\u0159evod V\u00fdb\u011br lo\u017eiska<\/span> \u2014 V\u00fdpo\u010det axi\u00e1ln\u00edho zat\u00ed\u017een\u00ed, radi\u00e1ln\u00edho zat\u00ed\u017een\u00ed a \u017eivotnosti L10<\/h1>\n

\u0160nekov\u00e1 h\u0159\u00eddel nese axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed 3\u20135kr\u00e1t v\u011bt\u0161\u00ed ne\u017e tangenci\u00e1ln\u00ed s\u00edla \u2013 co\u017e je o \u0159\u00e1dy v\u00edce ne\u017e u h\u0159\u00eddel\u00ed se spir\u00e1lov\u00fdmi ozuben\u00fdmi koly p\u0159i ekvivalentn\u00edm v\u00fdkonu. V\u011bt\u0161ina p\u0159ed\u010dasn\u00fdch poruch lo\u017eisek v pohonech \u0161nekov\u00fdch ozuben\u00fdch kol je zp\u016fsobena v\u00fdb\u011brem lo\u017eisek pro radi\u00e1ln\u00ed zat\u00ed\u017een\u00ed bez zohledn\u011bn\u00ed t\u00e9to axi\u00e1ln\u00ed axi\u00e1ln\u00ed s\u00edly. Tato p\u0159\u00edru\u010dka poskytuje v\u00fdpo\u010dty.<\/p>\n

Vzorec pro axi\u00e1ln\u00ed tah<\/span>V\u00fdpo\u010det radi\u00e1ln\u00edho zat\u00ed\u017een\u00ed<\/span>L10 Do\u017eivotn\u00ed<\/span>V\u00fdb\u011br typu lo\u017eiska<\/span><\/div>\n<\/div>\n
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\u2699 Korea Ever-Power Worm Gear Co., LtdAnsan-si, Gyeonggi-do, Koreasales@wormwheelgear.top<\/div>\n<\/div>\n
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Selh\u00e1n\u00ed lo\u017eiska dva m\u011bs\u00edce po v\u00fdm\u011bn\u011b ozuben\u00e9ho kola<\/h2>\n

V b\u0159eznu vym\u011bnil z\u00e1vod na zpracov\u00e1n\u00ed potravin \u0161nekov\u00fd p\u0159evod v rohov\u00e9m pohonu dopravn\u00edku. V kv\u011btnu pohon op\u011bt selhal \u2013 stejn\u00e9 p\u0159\u00edznaky, stejn\u00fd hlukov\u00fd profil. \u00dadr\u017eb\u00e1\u0159sk\u00fd t\u00fdm objednal dal\u0161\u00ed p\u0159evod a b\u011bhem \u010dek\u00e1n\u00ed na dod\u00e1vku pohon rozebral, aby potvrdil zp\u016fsob poruchy. Boky zub\u016f \u0161nekov\u00e9ho kola byly bezvadn\u00e9 \u2013 od b\u0159eznov\u00e9 instalace se jich sotva dotkly. Lo\u017eiska \u0161nekov\u00e9ho h\u0159\u00eddele selhala: vn\u011bj\u0161\u00ed krou\u017eek pevn\u00e9ho lo\u017eiska m\u011bl odlupovac\u00ed lom odpov\u00eddaj\u00edc\u00ed \u00fanav\u011b z axi\u00e1ln\u00edho p\u0159et\u00ed\u017een\u00ed.<\/p>\n

Vy\u0161et\u0159ov\u00e1n\u00ed odhalilo: dopravn\u00edk pou\u017e\u00edval kl\u00ednov\u00fd \u0159emenov\u00fd spoj od motoru k \u0161nekov\u00e9 h\u0159\u00eddeli s radi\u00e1ln\u00edm tahem \u0159emenu 2,5 kN na p\u0159esah h\u0159\u00eddele. \u00dadr\u017eb\u00e1\u0159sk\u00fd t\u00fdm vym\u011bnil ozuben\u00e9 kolo, ale ne lo\u017eiska \u2013 a nep\u0159epo\u010d\u00edtal, zda st\u00e1vaj\u00edc\u00ed lo\u017eiska (standardn\u00ed kuli\u010dkov\u00e1 lo\u017eiska s hlubokou dr\u00e1\u017ekou, \u0159ada 6206) zvl\u00e1dnou kombinovan\u00e9 radi\u00e1ln\u00ed a axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed. Standardn\u00ed kuli\u010dkov\u00e1 lo\u017eiska s hlubokou dr\u00e1\u017ekou zvl\u00e1daj\u00ed axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed p\u0159ibli\u017en\u011b 30% jejich radi\u00e1ln\u00ed \u00fanosnosti. Kombinovan\u00e9 zat\u00ed\u017een\u00ed lo\u017eiska na tomto h\u0159\u00eddeli p\u0159ekro\u010dilo jmenovitou \u00fanosnost 6206 1,8kr\u00e1t. Lo\u017eisko bylo odsouzeno k selh\u00e1n\u00ed, a\u0165 u\u017e bylo ozuben\u00e9 kolo vym\u011bn\u011bno, nebo ne.<\/p>\n

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Hlavn\u00ed probl\u00e9m:<\/strong> \u0160nekov\u00e9 p\u0159evodov\u00e9 h\u0159\u00eddele nesou jak radi\u00e1ln\u00ed zat\u00ed\u017een\u00ed (od tangenci\u00e1ln\u00ed s\u00edly v z\u00e1b\u011bru ozuben\u00e9ho kola, vn\u011bj\u0161\u00edho nap\u011bt\u00ed \u0159emenu nebo \u0159et\u011bzu), tak i vysok\u00e1 axi\u00e1ln\u00ed (axi\u00e1ln\u00ed) zat\u00ed\u017een\u00ed (od reak\u010dn\u00ed s\u00edly spir\u00e1lov\u00e9ho z\u00e1b\u011bru, kter\u00e1 se sna\u017e\u00ed tla\u010dit \u0161nekov\u00fd h\u0159\u00eddel pod\u00e9l jeho osy). Kuli\u010dkov\u00e1 lo\u017eiska s hlubokou dr\u00e1\u017ekou nejsou pro aplikace se \u0161nekov\u00fdmi h\u0159\u00eddeli vhodn\u00e1, s v\u00fdjimkou nejleh\u010d\u00edch provozn\u00edch podm\u00ednek. Kuli\u010dkov\u00e1 lo\u017eiska s koso\u00fahl\u00fdm stykem nebo ku\u017eel\u00edkov\u00e1 lo\u017eiska \u2013 v uspo\u0159\u00e1d\u00e1n\u00ed s pevnou plovouc\u00ed polohou nebo z\u00e1dy k sob\u011b pro zvl\u00e1d\u00e1n\u00ed obousm\u011brn\u00e9ho axi\u00e1ln\u00edho zat\u00ed\u017een\u00ed \u2013 jsou spr\u00e1vnou specifikac\u00ed pro \u0161nekov\u00fd h\u0159\u00eddel ve v\u0161ech aplikac\u00edch krom\u011b nejleh\u010d\u00edch.<\/p>\n<\/div>\n

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Axi\u00e1ln\u00ed axi\u00e1ln\u00ed tlak \u0161nekov\u00e9ho h\u0159\u00eddele \u2013 pro\u010d je tak velk\u00fd<\/h2>\n

V pohonu \u0161nekov\u00fdm p\u0159evodem se kontaktn\u00ed s\u00edla zubu v m\u00edst\u011b z\u00e1b\u011bru rozkl\u00e1d\u00e1 na t\u0159i slo\u017eky p\u016fsob\u00edc\u00ed na ka\u017edou h\u0159\u00eddel: tangenci\u00e1ln\u00ed (vytv\u00e1\u0159ej\u00edc\u00ed kroutic\u00ed moment), radi\u00e1ln\u00ed (odd\u011blovac\u00ed s\u00edla kolm\u00e1 k rozte\u010dn\u00e9mu v\u00e1lci) a axi\u00e1ln\u00ed (axi\u00e1ln\u00ed s\u00edla pod\u00e9l osy h\u0159\u00eddele). U dvojice spir\u00e1lov\u00fdch ozuben\u00fdch kol je axi\u00e1ln\u00ed axi\u00e1ln\u00ed s\u00edla obvykle 20-40% te\u010dn\u00e9 s\u00edly. V pohonu \u0161nekov\u00fdm p\u0159evodem je vztah z\u00e1sadn\u011b odli\u0161n\u00fd a pro \u0161nekov\u00fd h\u0159\u00eddel je mnohem z\u00e1va\u017en\u011bj\u0161\u00ed.<\/p>\n

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Slo\u017eky s\u00edly \u0161nekov\u00e9ho h\u0159\u00eddele<\/div>\n
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Axi\u00e1ln\u00ed posuv \u0161nekov\u00e9ho h\u0159\u00eddele (=tangenci\u00e1ln\u00ed s\u00edla kola)<\/div>\n
Fa1 = Ft2 = 2T2 \/ d2<\/div>\n
T2 = v\u00fdstupn\u00ed to\u010div\u00fd moment (Nm), d2 = pr\u016fm\u011br rozte\u010de kol (m)<\/div>\n<\/div>\n
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Tangen\u010dn\u00ed s\u00edla na \u0161nekov\u00e9m h\u0159\u00eddeli<\/div>\n
Ft1 = 2T1 \/ d1<\/div>\n
T1 = vstupn\u00ed kroutic\u00ed moment (Nm), d1 = pr\u016fm\u011br stoup\u00e1n\u00ed \u0161neku (m)<\/div>\n<\/div>\n
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Radi\u00e1ln\u00ed s\u00edla \u0161nekov\u00e9ho h\u0159\u00eddele<\/div>\n
Fr1 = Fa2 = Ft2 x tan(alfa_n) \/ cos(lambda)<\/div>\n
alpha_n = \u00fahel norm\u00e1ln\u00edho tlaku (20 stup\u0148\u016f), lambda = \u00fahel stoup\u00e1n\u00ed<\/div>\n<\/div>\n
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Vztah mezi axi\u00e1ln\u00edm a tangenci\u00e1ln\u00edm (\u0161nekov\u00fd h\u0159\u00eddel)<\/div>\n
Fa1 \/ Ft1 = ix d1 \/ d2 = i \/ q<\/div>\n
Pro i=50, q=12: Fa1 = 50\/12 \u00d7 Ft1 = 4,17 \u00d7 Ft1<\/div>\n<\/div>\n<\/div>\n

D\u016fle\u017eit\u00fd poznatek: pro \u0161nekov\u00fd pohon s p\u0159evodov\u00fdm pom\u011brem 50:1 (q=12) je axi\u00e1ln\u00ed tlak na \u0161nekov\u00e9m h\u0159\u00eddeli 4,17n\u00e1sobek te\u010dn\u00e9 s\u00edly<\/strong> na \u0161nekov\u00e9m h\u0159\u00eddeli. Proto\u017ee v\u011bt\u0161ina in\u017een\u00fdr\u016f vypo\u010d\u00edt\u00e1v\u00e1 zat\u00ed\u017een\u00ed lo\u017eiska z kroutic\u00edho momentu h\u0159\u00eddele a polom\u011bru stoup\u00e1n\u00ed (ud\u00e1vaj\u00edc\u00edho tangenci\u00e1ln\u00ed s\u00edlu), vypo\u010d\u00edt\u00e1vaj\u00ed pouze 24% skute\u010dn\u00e9ho axi\u00e1ln\u00edho zat\u00ed\u017een\u00ed lo\u017eiska. Lo\u017eisko \u0161nekov\u00e9ho h\u0159\u00eddele dimenzovan\u00e9 pouze na tangenci\u00e1ln\u00ed s\u00edlu je pro axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed poddimenzov\u00e1no faktorem 4. Toto je nej\u010dast\u011bj\u0161\u00ed chyba p\u0159i konstrukci lo\u017eiska \u0161nekov\u00e9ho p\u0159evodu.<\/p>\n

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V\u00fdb\u011br typu lo\u017eiska \u2013 \u0161nekov\u00e1 h\u0159\u00eddel vs. h\u0159\u00eddel kola<\/h2>\n
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\u0160nekov\u00fd h\u0159\u00eddel \u2013 pevn\u00e9 lo\u017eisko<\/h4>\n
Kuli\u010dkov\u00e1 lo\u017eiska s koso\u00fahl\u00fdm stykem (p\u00e1r, z\u00e1dy k sob\u011b)<\/div>\n

Pevn\u00e9 lo\u017eisko \u0161nekov\u00e9ho h\u0159\u00eddele mus\u00ed n\u00e9st jak radi\u00e1ln\u00ed z\u00e1b\u011brovou s\u00edlu, tak i pln\u00fd obousm\u011brn\u00fd axi\u00e1ln\u00ed axi\u00e1ln\u00ed posuv. Tuto kombinovanou \u00fanosnost zaji\u0161\u0165uj\u00ed kuli\u010dkov\u00e1 lo\u017eiska s koso\u00fahl\u00fdm stykem montovan\u00e1 z\u00e1dy k sob\u011b (uspo\u0159\u00e1d\u00e1n\u00ed DB) nebo \u010dely k sob\u011b (uspo\u0159\u00e1d\u00e1n\u00ed DF). Kontaktn\u00ed \u00fahel (obvykle 25\u201340 stup\u0148\u016f) ur\u010duje pom\u011br axi\u00e1ln\u00ed a radi\u00e1ln\u00ed \u00fanosnosti \u2013 vy\u0161\u0161\u00ed kontaktn\u00ed \u00fahel poskytuje v\u011bt\u0161\u00ed axi\u00e1ln\u00ed \u00fanosnost. Pro v\u011bt\u0161inu aplikac\u00ed \u0161nekov\u00fdch h\u0159\u00eddel\u00ed jsou vhodn\u00e1 lo\u017eiska s koso\u00fahl\u00fdm stykem s \u00fahlem styku 30 stup\u0148\u016f nebo 40 stup\u0148\u016f.<\/p>\n<\/div>\n

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\u0160nekov\u00e1 h\u0159\u00eddel \u2013 plovouc\u00ed lo\u017eisko<\/h4>\n
Kuli\u010dkov\u00e9 lo\u017eisko s hlubokou dr\u00e1\u017ekou (pouze radi\u00e1ln\u00ed, bez axi\u00e1ln\u00edho posuvu)<\/div>\n

Plovouc\u00ed lo\u017eisko na neaxi\u00e1ln\u00edm konci \u0161nekov\u00e9ho h\u0159\u00eddele nese pouze radi\u00e1ln\u00ed slo\u017eku zat\u00ed\u017een\u00ed ze z\u00e1b\u011bru a jak\u00e9koli vn\u011bj\u0161\u00ed radi\u00e1ln\u00ed zat\u00ed\u017een\u00ed. Umo\u017e\u0148uje axi\u00e1ln\u00ed tepeln\u00e9 rozta\u017een\u00ed h\u0159\u00eddele bez vzniku axi\u00e1ln\u00ed omezuj\u00edc\u00ed s\u00edly. Standardn\u00ed kuli\u010dkov\u00e1 lo\u017eiska s hlubokou dr\u00e1\u017ekou jsou vhodn\u00e1 pro plovouc\u00ed polohu, proto\u017ee se zde nep\u0159en\u00e1\u0161\u00ed \u017e\u00e1dn\u00e9 axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed. Otvor t\u011blesa plovouc\u00edho lo\u017eiska je obvykle dimenzov\u00e1n tak, aby umo\u017e\u0148oval mal\u00fd voln\u00fd axi\u00e1ln\u00ed pohyb (0,3\u20130,8 mm) pro p\u0159izp\u016fsoben\u00ed se tepeln\u00e9 rozta\u017enosti.<\/p>\n<\/div>\n

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H\u0159\u00eddel kola \u2014 ob\u011b lo\u017eiska<\/h4>\n
Kuli\u010dkov\u00e1 lo\u017eiska s hlubokou dr\u00e1\u017ekou nebo v\u00e1le\u010dkov\u00e1 lo\u017eiska<\/div>\n

H\u0159\u00eddel \u0161nekov\u00e9ho kola p\u0159en\u00e1\u0161\u00ed radi\u00e1ln\u011b v\u00fdstupn\u00ed kroutic\u00ed moment a radi\u00e1ln\u00ed s\u00edlu reakce z\u00e1b\u011bru (Fr2). Axi\u00e1ln\u00ed s\u00edla na h\u0159\u00eddeli kola (Fa2) se rovn\u00e1 Fr1, radi\u00e1ln\u00ed s\u00edle na h\u0159\u00eddeli \u0161neku \u2013 obvykle mal\u00e9 v porovn\u00e1n\u00ed s radi\u00e1ln\u00ed \u00fanosnost\u00ed h\u0159\u00eddele kola. Pro aplikace na h\u0159\u00eddeli kol jsou ve v\u011bt\u0161in\u011b p\u0159\u00edpad\u016f dosta\u010duj\u00edc\u00ed standardn\u00ed kuli\u010dkov\u00e1 lo\u017eiska. Pro aplikace s vysok\u00fdm v\u00fdstupn\u00edm kroutic\u00edm momentem (modul M8+, provozn\u00ed re\u017eim D3) mohou b\u00fdt pro jejich vy\u0161\u0161\u00ed radi\u00e1ln\u00ed \u00fanosnost up\u0159ednost\u0148ov\u00e1na v\u00e1le\u010dkov\u00e1 lo\u017eiska.<\/p>\n<\/div>\n

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\u0160nekov\u00fd h\u0159\u00eddel \u2013 p\u0159id\u00e1v\u00e1n\u00ed vn\u011bj\u0161\u00edho zat\u00ed\u017een\u00ed<\/h4>\n
Kombinovan\u00e9 zat\u00ed\u017een\u00ed: S\u00edla s\u00edt\u011b + Nap\u011bt\u00ed \u0159emene\/\u0159et\u011bzu<\/div>\n

Kdy\u017e je \u0161nekov\u00fd h\u0159\u00eddel poh\u00e1n\u011bn motorem pomoc\u00ed kl\u00ednov\u00e9ho \u0159emene nebo \u0159et\u011bzu, nap\u011bt\u00ed \u0159emene\/\u0159et\u011bzu p\u0159id\u00e1v\u00e1 k p\u0159esahu h\u0159\u00eddele radi\u00e1ln\u00ed s\u00edlu, kter\u00e1 m\u016f\u017ee p\u0159ekro\u010dit radi\u00e1ln\u00ed s\u00edlu v z\u00e1b\u011bru. Tato vn\u011bj\u0161\u00ed s\u00edla mus\u00ed b\u00fdt pro v\u00fdpo\u010det zat\u00ed\u017een\u00ed lo\u017eiska vektorov\u011b p\u0159i\u010dtena k radi\u00e1ln\u00ed s\u00edle v z\u00e1b\u011bru. Nap\u011bt\u00ed \u0159emene p\u016fsob\u00ed kolmo k rozp\u011bt\u00ed \u0159emene; radi\u00e1ln\u00ed s\u00edla v z\u00e1b\u011bru p\u016fsob\u00ed pod\u00e9l linie mezi h\u0159\u00eddeli. V\u00fdslednice z\u00e1vis\u00ed na \u00fahlu mezi nimi. V nejhor\u0161\u00edm p\u0159\u00edpad\u011b je se\u010dt\u011bte line\u00e1rn\u011b: F_lo\u017eisko = F_\u0159emen + F_radi\u00e1ln\u00ed_s\u00ed\u0165.<\/p>\n<\/div>\n<\/div>\n

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V\u00fdpo\u010det \u017eivotnosti lo\u017eiska \u2014 L10 hodin pro aplikaci se \u0161nekov\u00fdm h\u0159\u00eddelem<\/h2>\n

V\u00fdpo\u010det \u017eivotnosti lo\u017eiska dle ISO (L10 \u2013 \u017eivotnost, p\u0159i kter\u00e9 se u identick\u00fdch lo\u017eisek 10% o\u010dek\u00e1v\u00e1 selh\u00e1n\u00ed v d\u016fsledku \u00fanavy) vy\u017eaduje ekvivalentn\u00ed dynamick\u00e9 zat\u00ed\u017een\u00ed lo\u017eiska P, kter\u00e9 kombinuje radi\u00e1ln\u00ed a axi\u00e1ln\u00ed slo\u017eku pro lo\u017eiska s koso\u00fahl\u00fdm stykem.<\/p>\n

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Postup v\u00fdpo\u010dtu \u017eivotnosti L10<\/div>\n
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Krok 1: V\u00fdpo\u010det ekvivalentn\u00edho dynamick\u00e9ho zat\u00ed\u017een\u00ed lo\u017eiska P<\/div>\n
P = X x Fr + Y x Fa<\/div>\n
X = sou\u010dinitel radi\u00e1ln\u00edho zat\u00ed\u017een\u00ed, Y = sou\u010dinitel axi\u00e1ln\u00edho zat\u00ed\u017een\u00ed (z katalogu lo\u017eisek, z\u00e1vis\u00ed na pom\u011brech Fa\/C0 a Fa\/Fr), Fr = radi\u00e1ln\u00ed zat\u00ed\u017een\u00ed lo\u017eiska (N), Fa = axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed lo\u017eiska (N)<\/div>\n<\/div>\n
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Krok 2: V\u00fdpo\u010det z\u00e1kladn\u00ed \u017eivotnosti L10 v milionech ot\u00e1\u010dek<\/div>\n
L10 = (C\/P)^p<\/div>\n
C = z\u00e1kladn\u00ed dynamick\u00e1 \u00fanosnost (N, z katalogu lo\u017eisek), P = ekvivalentn\u00ed dynamick\u00e9 zat\u00ed\u017een\u00ed (N), p = 3 pro kuli\u010dkov\u00e1 lo\u017eiska, 10\/3 pro valiv\u00e1 lo\u017eiska<\/div>\n<\/div>\n
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Krok 3: P\u0159eve\u010fte na provozn\u00ed hodiny<\/div>\n
L10h = (L10 \u00d7 10^6) \/ (60 \u00d7 n)<\/div>\n
n = ot\u00e1\u010dky h\u0159\u00eddele v ot.\/min. V\u00fdsledkem je \u017eivotnost L10 v hodin\u00e1ch<\/div>\n<\/div>\n
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Krok 4: Pou\u017eit\u00ed faktoru modifikace \u017eivotnosti<\/div>\n
Lnm = a1 x a_ISO x L10<\/div>\n
a1 = faktor spolehlivosti (a1=1 pro spolehlivost 90%, 0,53 pro 95%), a_ISO = faktor syst\u00e9mov\u00e9ho p\u0159\u00edstupu zohled\u0148uj\u00edc\u00ed maz\u00e1n\u00ed a kontaminaci<\/div>\n<\/div>\n<\/div>\n

P\u0159\u00edklad proveden\u00ed: \u0160nekov\u00fd pohon 50:1, 3 kW, vstupn\u00ed ot\u00e1\u010dky 1450 ot.\/min.<\/h3>\n
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Geometrie ozuben\u00fdch kol<\/span>
\nz1=1, z2=50, m=4, d1=48 mm, d2=200 mm, lambda=1,52 stup\u0148\u016f, \u00fa\u010dinnost 62%<\/span><\/div>\n
V\u00fdstupn\u00ed to\u010div\u00fd moment<\/span>
\nT2 = 3000 x 0,62 \/ (29,0 x p\u00ed\/30) = 3000 x 0,62 \/ 3,036 = 612 Nm<\/span><\/div>\n
Axi\u00e1ln\u00ed axi\u00e1ln\u00ed tlak \u0161nekov\u00e9 h\u0159\u00eddele (Fa1)<\/span>
\nFa1 = 2T2\/d2 = 2 x 612 \/ 0,200 = 6 120 N<\/span><\/div>\n
Tangenci\u00e1ln\u00ed s\u00edla na \u0161nekov\u00e9m h\u0159\u00eddeli (Ft1)<\/span>
\nFt1 = 2T1\/d1 = 2 x (3000\/3,036\u00d70,62)\/(0,048 \u00d7 2) = ??? Nech\u0165 T1=P\/(omega1) = 3000\/(1450x2\u03c0\/60) = 19,75 Nm; Ft1 = 2\u00d719,75\/0,048 = 823 N<\/span><\/div>\n
Kontrola pom\u011bru: Fa1\/Ft1<\/span>
\n6120\/823 = 7,4x \u2014 axi\u00e1ln\u00ed osa \u0161nekov\u00e9ho h\u0159\u00eddele je 7,4kr\u00e1t te\u010dn\u00e1<\/span><\/div>\n
Ekvivalentn\u00ed zat\u00ed\u017een\u00ed lo\u017eiska pro koso\u00fahl\u00fd styk 7210 (z\u00e1dy k sob\u011b)<\/span>
\nFr=1200N (s\u00ed\u0165ovina + p\u00e1s), Fa=6120N; z katalogu X=0,35, Y=0,57: P = 0,35\u00d71200 + 0,57\u00d76120 = 420 + 3488 = 3908 N<\/span><\/div>\n
\u017divotnost L10 (7210, C=32500N, n=1450 ot.\/min)<\/span>
\nL10 = (32500\/3908)^3 = 578 milion\u016f ot\u00e1\u010dek; L10h = 578e6\/(60\u00d71450) = 6644 hodin<\/span><\/div>\n
Porovn\u00e1n\u00ed s dr\u00e1\u017ekovanou fr\u00e9zou 6210 (C=28100N, pouze radi\u00e1ln\u00ed)<\/span>
\nNespr\u00e1vn\u011b dimenzov\u00e1no pouze pro radi\u00e1ln\u00ed zat\u00ed\u017een\u00ed: P_wrong = Fr = 1200N; L10h_wrong = (28100\/1200)^3\/(60\u00d71450) = zd\u00e1nliv\u00fdch 56 000 hodin \u2013 ale skute\u010dn\u00e1 Fa=6120N p\u0159et\u00ed\u017e\u00ed 6210 zcela: axi\u00e1ln\u00ed \u00fanosnost 6210 ~30% z C0=16500N = 4950N \u2013 6120N tuto \u00fanosnost p\u0159ekra\u010duje<\/span><\/div>\n<\/div>\n
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P\u011bt b\u011b\u017en\u00fdch chyb ve specifikaci lo\u017eisek \u0161nekov\u00fdch p\u0159evod\u016f<\/h2>\n
\n\n\n\n\n\n\n\n\n\n
Chyba<\/th>\nCo se pokaz\u00ed<\/th>\nSpr\u00e1vn\u00fd p\u0159\u00edstup<\/th>\n<\/tr>\n<\/thead>\n
Kuli\u010dkov\u00e1 lo\u017eiska s hlubokou dr\u00e1\u017ekou na \u0161nekov\u00e9 h\u0159\u00eddeli<\/td>\nDGBB zvl\u00e1dne jako axi\u00e1ln\u00ed lo\u017eisko pouze lo\u017eisko 30% s radi\u00e1ln\u00edm jmenovit\u00fdm odporem. Axi\u00e1ln\u00ed odpor \u0161nekov\u00e9ho h\u0159\u00eddele m\u016f\u017ee b\u00fdt 4-7n\u00e1sobn\u00fd. P\u0159et\u00ed\u017een\u00ed lo\u017eiska v axi\u00e1ln\u00edm sm\u011bru - \u00fanava lo\u017eiska zp\u016fsoben\u00e1 odlupov\u00e1n\u00edm v t\u00fddnech a\u017e m\u011bs\u00edc\u00edch.<\/td>\nKuli\u010dkov\u00e1 lo\u017eiska s koso\u00fahl\u00fdm stykem (p\u00e1r z\u00e1dy k sob\u011b) nebo ku\u017eel\u00edkov\u00e1 lo\u017eiska na pevn\u00e9 (axi\u00e1ln\u00ed) pozici lo\u017eiska.<\/td>\n<\/tr>\n
Zapomenut\u00ed napnut\u00ed \u0159emene nebo \u0159et\u011bzu p\u0159i radi\u00e1ln\u00edm zat\u00ed\u017een\u00ed<\/td>\nNap\u011bt\u00ed kl\u00ednov\u00e9ho \u0159emene m\u016f\u017ee b\u00fdt radi\u00e1ln\u011b 1 500\u20134 000 N na p\u0159esahu h\u0159\u00eddele. Pokud nen\u00ed zapo\u010d\u00edt\u00e1no, je lo\u017eisko Fr dramaticky podhodnoceno.<\/td>\nP\u0159ipo\u010dt\u011bte vektor s\u00edly nap\u011bt\u00ed \u0159emene k radi\u00e1ln\u00ed s\u00edle s\u00edt\u011b. Pro nejhor\u0161\u00ed p\u0159\u00edpad pou\u017eijte sou\u010det nap\u011bt\u00ed \u0159emene na napjat\u00e9 stran\u011b a na voln\u00e9 stran\u011b.<\/td>\n<\/tr>\n
Dimenzov\u00e1n\u00ed obou lo\u017eisek \u0161nekov\u00e9ho h\u0159\u00eddele jako pevn\u00fdch lo\u017eisek<\/td>\nDv\u011b pevn\u00e1 lo\u017eiska na \u0161nekov\u00e9 h\u0159\u00eddeli vytv\u00e1\u0159ej\u00ed axi\u00e1ln\u00ed omezen\u00ed, kter\u00e9 zabra\u0148uje tepeln\u00e9 rozta\u017enosti. S zah\u0159\u00edv\u00e1n\u00edm h\u0159\u00eddele jsou ob\u011b lo\u017eiska axi\u00e1ln\u011b p\u0159edpjat\u00e1, co\u017e urychluje \u00fanavu materi\u00e1lu.<\/td>\nJedno pevn\u00e9 (axi\u00e1ln\u00ed) lo\u017eisko + jedno plovouc\u00ed lo\u017eisko. Plovouc\u00ed lo\u017eisko umo\u017e\u0148uje axi\u00e1ln\u00ed tepelnou rozta\u017enost.<\/td>\n<\/tr>\n
Pou\u017eit\u00ed katalogov\u00e9ho jmenovit\u00e9ho momentu k odhadu zat\u00ed\u017een\u00ed lo\u017eiska<\/td>\nKatalogov\u00fd jmenovit\u00fd v\u00fdstupn\u00ed kroutic\u00ed moment je jmenovit\u00fd kroutic\u00ed moment za jmenovit\u00fdch podm\u00ednek. Skute\u010dn\u00e9 \u0161pi\u010dkov\u00e9 kroutic\u00ed momenty (rozb\u011bh, p\u0159et\u00ed\u017een\u00ed) mohou b\u00fdt 2\u20133kr\u00e1t vy\u0161\u0161\u00ed a zp\u016fsobit proporcion\u00e1ln\u011b vy\u0161\u0161\u00ed zat\u00ed\u017een\u00ed lo\u017eisek.<\/td>\nVypo\u010d\u00edtejte zat\u00ed\u017een\u00ed lo\u017eiska p\u0159i \u0161pi\u010dkov\u00e9m provozn\u00edm momentu (provozn\u00ed moment x provozn\u00ed faktor), nikoli jmenovit\u00fd katalogov\u00fd moment.<\/td>\n<\/tr>\n
Ignorov\u00e1n\u00ed typu lo\u017eiska p\u0159i v\u00fdm\u011bn\u011b vadn\u00e9ho lo\u017eiska<\/td>\nVadn\u00e9 lo\u017eisko, kter\u00e9 bylo nespr\u00e1vn\u011b specifikov\u00e1no, sel\u017ee znovu, pokud se nahrad\u00ed stejn\u00e9 lo\u017eisko s nespr\u00e1vnou specifikac\u00ed. Nahrazov\u00e1n\u00ed stejn\u00e9ho lo\u017eiska za podobn\u00e9 pouze udr\u017euje konstruk\u010dn\u00ed chybu.<\/td>\nP\u0159i v\u00fdm\u011bn\u011b vadn\u00e9ho lo\u017eiska ov\u011b\u0159te p\u0159ed objedn\u00e1n\u00edm n\u00e1hradn\u00edho lo\u017eiska, zda byla p\u016fvodn\u00ed specifikace spr\u00e1vn\u00e1. Pokud k poru\u0161e do\u0161lo p\u0159ed\u010dasn\u011b, m\u016f\u017ee b\u00fdt jej\u00ed p\u0159\u00ed\u010dinou p\u016fvodn\u00ed specifikace.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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P\u0159esn\u00e1 v\u00fdroba pro spolehliv\u00fd v\u00fdkon h\u0159\u00eddel\u00ed a lo\u017eisek<\/h2>\n\n\n\n\n
\"\"<\/td>\n\"\"<\/td>\n<\/tr>\n
\"\"<\/td>\n\"\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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Korea Ever-Power<\/span><\/p>\n

Produkty s \u00fadaji o zat\u00ed\u017een\u00ed lo\u017eiska pro spr\u00e1vn\u00fd v\u00fdb\u011br lo\u017eiska<\/h2>\n<\/div>\n
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\"\u0160nekov\u00e9<\/div>\n
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\u00dadaje o zat\u00ed\u017een\u00ed lo\u017eiska zahrnuty \/ S\u00edly na \u0161nekov\u00e9 h\u0159\u00eddeli<\/div>\n
\u0160nekov\u00e9 p\u0159evodovky \u2013 s \u00fadaji o v\u00fdpo\u010dtu zat\u00ed\u017een\u00ed h\u0159\u00eddele<\/div>\n
Spole\u010dnost Korea Ever-Power poskytuje \u00fadaje o zat\u00ed\u017een\u00ed lo\u017eiska h\u0159\u00eddele jako sou\u010d\u00e1st potvrzen\u00ed specifikace pro jakoukoli objedn\u00e1vku \u0161nekov\u00e9ho p\u0159evodu, u kter\u00e9ho z\u00e1kazn\u00edk uvede, \u017ee navrhuje uspo\u0159\u00e1d\u00e1n\u00ed lo\u017eiska. \u00dadaje o zat\u00ed\u017een\u00ed lo\u017eiska zahrnuj\u00ed: axi\u00e1ln\u00ed s\u00edlu \u0161nekov\u00e9ho h\u0159\u00eddele (Fa1 = Ft2 = 2T2\/d2 p\u0159i jmenovit\u00e9m to\u010div\u00e9m momentu a p\u0159i maxim\u00e1ln\u00edm n\u00e1vrhov\u00e9m to\u010div\u00e9m momentu); radi\u00e1ln\u00ed zat\u00ed\u017een\u00ed \u0161nekov\u00e9ho h\u0159\u00eddele od tangenci\u00e1ln\u00edch a radi\u00e1ln\u00edch sil v z\u00e1b\u011bru; a potvrzen\u00ed geometrie \u0161nekov\u00e9ho h\u0159\u00eddele (d1, d2, \u00fahel stoup\u00e1n\u00ed) pot\u0159ebn\u00e9 pro v\u00fdpo\u010det zat\u00ed\u017een\u00ed lo\u017eiska. Tyto \u00fadaje nep\u0159edstavuj\u00ed standardn\u00ed p\u0159epravn\u00ed dokumentaci \u2013 jsou poskytov\u00e1ny na vy\u017e\u00e1d\u00e1n\u00ed p\u0159i zad\u00e1v\u00e1n\u00ed objedn\u00e1vky. \u00dadaje o zat\u00ed\u017een\u00ed lo\u017eiska si m\u016f\u017eete vy\u017e\u00e1dat zahrnut\u00edm do popt\u00e1vky na specifikaci. Spole\u010dnost Korea Ever-Power nespecifikuje uspo\u0159\u00e1d\u00e1n\u00ed lo\u017eiska z\u00e1kazn\u00edka \u2013 v\u00fdb\u011br lo\u017eiska z\u016fst\u00e1v\u00e1 v konstruk\u010dn\u00ed odpov\u011bdnosti z\u00e1kazn\u00edka \u2013 ale \u00fadaje o zat\u00ed\u017een\u00ed lo\u017eiska z geometrie na\u0161eho p\u0159evodu jsou poskytov\u00e1ny na podporu tohoto v\u00fdb\u011bru.<\/div>\n

Zobrazit \/ Po\u017e\u00e1dat<\/a><\/p>\n<\/div>\n<\/div>\n

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\"Dvojit\u00e1<\/div>\n
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Kompatibiln\u00ed s koso\u00fahl\u00fdm stykem \/ P\u0159esn\u00e1 geometrie h\u0159\u00eddele<\/div>\n
Dvojit\u00e1 \u0161nekov\u00e1 p\u0159evodovka \u2013 aplikace s kritick\u00fdmi lo\u017eisky<\/div>\n
Pro pohony robotick\u00fdch kloub\u016f, p\u0159esn\u00e9 polohova\u010de a sledovac\u00ed syst\u00e9my, kde je uspo\u0159\u00e1d\u00e1n\u00ed \u0161nekov\u00e9ho p\u0159evodu navr\u017eeno jak pro nosnost, tak pro minim\u00e1ln\u00ed pr\u016fhyb p\u0159i kombinovan\u00e9m zat\u00ed\u017een\u00ed, poskytuje duplexn\u00ed \u0161nekov\u00fd p\u0159evod dal\u0161\u00ed v\u00fdhodu: funkce nastaviteln\u00e9 v\u016fle umo\u017e\u0148uje samostatnou optimalizaci p\u0159edp\u011bt\u00ed lo\u017eiska od v\u016fle v z\u00e1b\u011bru ozuben\u00e9ho kola. U standardn\u00edch uspo\u0159\u00e1d\u00e1n\u00ed \u0161nekov\u00fdch p\u0159evod\u016f se zmen\u0161en\u00edm v\u016fle lo\u017eiska (p\u0159edp\u011bt\u00ed lo\u017eisek pro tuhost) m\u011bn\u00ed zd\u00e1nliv\u00e1 v\u016fle, proto\u017ee pr\u016fhyb lo\u017eiska p\u0159isp\u00edv\u00e1 k chyb\u011b polohy. Duplexn\u00ed \u0161nekov\u00fd p\u0159evod tyto dva parametry odd\u011bluje: uspo\u0159\u00e1d\u00e1n\u00ed lo\u017eiska je optimalizov\u00e1no z hlediska tuhosti; v\u016fle v z\u00e1b\u011bru ozuben\u00e9ho kola je samostatn\u011b nastavena na c\u00edlovou hodnotu. Geometrie h\u0159\u00eddele (d1, \u00fahel stoup\u00e1n\u00ed, profil boku) pot\u0159ebn\u00e1 pro v\u00fdpo\u010det zat\u00ed\u017een\u00ed lo\u017eiska je uvedena v dodac\u00ed dokumentaci pro ka\u017ed\u00fd duplexn\u00ed \u0161nekov\u00fd p\u0159evod.<\/div>\n

Zobrazit \/ Po\u017e\u00e1dat<\/a><\/p>\n<\/div>\n<\/div>\n

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\"Anal\u00fdza<\/div>\n
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Konzultace s v\u00fdb\u011brem lo\u017eisek \/ Podpora p\u0159i aplikaci<\/div>\n
Anal\u00fdza zat\u00ed\u017een\u00ed lo\u017eisek a kontrola specifikac\u00ed<\/div>\n
Pro in\u017een\u00fdrsk\u00e9 t\u00fdmy, kter\u00e9 navrhuj\u00ed syst\u00e9my pohon\u016f \u0161nekov\u00fdmi p\u0159evody, u kter\u00fdch je v\u00fdb\u011br lo\u017eiska kritick\u00fdm konstruk\u010dn\u00edm parametrem \u2013 robotick\u00e9 klouby se specifikacemi pr\u016fhybu, vysokocyklov\u00e9 automatiza\u010dn\u00ed syst\u00e9my s c\u00edlovou \u017eivotnost\u00ed lo\u017eisek a stavebn\u00ed za\u0159\u00edzen\u00ed, u kter\u00fdch je selh\u00e1n\u00ed lo\u017eiska ud\u00e1lost\u00ed kritickou z hlediska bezpe\u010dnosti \u2013 poskytuje Korea Ever-Power anal\u00fdzu zat\u00ed\u017een\u00ed lo\u017eisek jako sou\u010d\u00e1st slu\u017eby aplika\u010dn\u00edho in\u017een\u00fdrstv\u00ed. Za\u0161lete specifikaci soukol\u00ed, vstupn\u00ed v\u00fdkon, ot\u00e1\u010dky motoru, konfiguraci mont\u00e1\u017ee, vn\u011bj\u0161\u00ed zat\u00ed\u017een\u00ed (nap\u011bt\u00ed \u0159emene, zat\u00ed\u017een\u00ed \u0159et\u011bzu, spojovac\u00ed s\u00edly) a c\u00edlovou \u017eivotnost lo\u017eiska v hodin\u00e1ch. Korea Ever-Power vypo\u010d\u00edt\u00e1 s\u00edly v lo\u017eisku \u0161nekov\u00e9ho h\u0159\u00eddele a h\u0159\u00eddele kola, identifikuje po\u017eadovan\u00fd typ lo\u017eiska a uspo\u0159\u00e1d\u00e1n\u00ed a poskytne ekvivalentn\u00ed dynamick\u00e9 zat\u00ed\u017een\u00ed P pro ka\u017edou pozici lo\u017eiska, aby v\u00e1\u0161 t\u00fdm mohl prov\u00e9st v\u00fdpo\u010det \u017eivotnosti L10 podle v\u00e1mi zvolen\u00e9ho katalogu lo\u017eisek. Tato slu\u017eba je poskytov\u00e1na zdarma pro objedn\u00e1vky zadan\u00e9 u Korea Ever-Power a pro seri\u00f3zn\u00ed konstruk\u010dn\u00ed dotazy.<\/div>\n

Zobrazit \/ Po\u017e\u00e1dat<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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\u010casto kladen\u00e9 ot\u00e1zky k lo\u017eisk\u016fm<\/span><\/p>\n

V\u00fdb\u011br lo\u017eiska \u0161nekov\u00e9ho p\u0159evodu \u2013 ot\u00e1zky od strojn\u00edch konstrukt\u00e9r\u016f<\/h2>\n<\/div>\n
\nMoje \u0161nekov\u00e1 h\u0159\u00eddel je poh\u00e1n\u011bna spir\u00e1lov\u00fdm ozuben\u00fdm kolem \u2013 nikoli \u0159emenem. Zm\u011bn\u00ed to v\u00fdpo\u010det vn\u011bj\u0161\u00edho radi\u00e1ln\u00edho zat\u00ed\u017een\u00ed?+<\/span><\/summary>\n
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Ano. Vstupn\u00ed \u0161roubovicov\u00e9 kolo p\u0159id\u00e1v\u00e1 na \u0161nekov\u00fd h\u0159\u00eddel radi\u00e1ln\u00ed s\u00edlu, ale tak\u00e9 p\u0159id\u00e1v\u00e1 axi\u00e1ln\u00ed s\u00edlu. Tangenci\u00e1ln\u00ed s\u00edla \u0161roubovicov\u00e9ho kola Ft_hel p\u016fsob\u00ed te\u010dn\u011b v z\u00e1b\u011bru a p\u0159isp\u00edv\u00e1 k radi\u00e1ln\u00edmu zat\u00ed\u017een\u00ed \u0161nekov\u00e9ho h\u0159\u00eddele. Axi\u00e1ln\u00ed s\u00edla \u0161roubovicov\u00e9ho kola Fa_hel p\u016fsob\u00ed axi\u00e1ln\u011b na \u0161nekov\u00fd h\u0159\u00eddel a p\u0159id\u00e1v\u00e1 nebo ode\u010d\u00edt\u00e1 axi\u00e1ln\u00ed axi\u00e1ln\u00ed s\u00edlu Fa1 v z\u00e1b\u011bru \u0161neku v z\u00e1vislosti na stran\u011b \u0161roubovice \u0161roubovicov\u00e9ho kola. U \u0161roubovic se stejnou stranou se s\u00edly s\u010d\u00edtaj\u00ed; u \u0161roubovic s opa\u010dnou stranou se ode\u010d\u00edtaj\u00ed. P\u0159ed v\u00fdb\u011brem axi\u00e1ln\u00ed \u00fanosnosti pevn\u00e9ho lo\u017eiska v\u017edy zkontrolujte znam\u00e9nko kombinovan\u00e9 axi\u00e1ln\u00ed s\u00edly. Vstupn\u00ed \u0161roubovicov\u00e9 kolo se stejnou stranou \u0161roubovice jako z\u00e1vit \u0161neku m\u016f\u017ee v\u00fdrazn\u011b zv\u00fd\u0161it celkov\u00e9 axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed \u0161nekov\u00e9ho h\u0159\u00eddele.<\/p>\n<\/div>\n<\/details>\n

\nMohu pro pevn\u00e9 lo\u017eisko \u0161nekov\u00e9ho h\u0159\u00eddele pou\u017e\u00edt ku\u017eel\u00edkov\u00e1 lo\u017eiska m\u00edsto kuli\u010dkov\u00fdch lo\u017eisek s koso\u00fahl\u00fdm stykem?+<\/span><\/summary>\n
\n

Ano, a u vysoce v\u00fdkonn\u00fdch \u0161nekov\u00fdch pohon\u016f (D3-D4, vysok\u00fd v\u00fdstupn\u00ed to\u010div\u00fd moment) se ku\u017eel\u00edkov\u00e1 lo\u017eiska \u010dasto up\u0159ednost\u0148uj\u00ed p\u0159ed kuli\u010dkov\u00fdmi lo\u017eisky s koso\u00fahl\u00fdm stykem pro pevnou polohu lo\u017eiska. Ku\u017eel\u00edkov\u00e1 lo\u017eiska maj\u00ed vy\u0161\u0161\u00ed radi\u00e1ln\u00ed a axi\u00e1ln\u00ed \u00fanosnost ne\u017e kuli\u010dkov\u00e1 lo\u017eiska s koso\u00fahl\u00fdm stykem se stejn\u00fdm pr\u016fm\u011brem d\u00edry a jsou vhodn\u011bj\u0161\u00ed pro zne\u010di\u0161t\u011bn\u00e9 prost\u0159ed\u00ed, proto\u017ee kontakt s v\u00e1le\u010dky vytv\u00e1\u0159\u00ed vy\u0161\u0161\u00ed zat\u00ed\u017een\u00ed valiv\u00e9ho t\u011blesa p\u0159i kontaminaci \u010d\u00e1sticemi ne\u017e kontakt s kuli\u010dkami. Ku\u017eel\u00edkov\u00e9 lo\u017eisko vy\u017eaduje p\u0159i instalaci nastaven\u00ed p\u0159edp\u011bt\u00ed nebo pracovn\u00ed v\u016fle \u2013 jedn\u00e1 se o slo\u017eit\u011bj\u0161\u00ed postup nastaven\u00ed ne\u017e u kuli\u010dkov\u00fdch lo\u017eisek s koso\u00fahl\u00fdm stykem v uspo\u0159\u00e1d\u00e1n\u00ed z\u00e1dy k sob\u011b, ale poskytuje vynikaj\u00edc\u00ed \u00fanosnost a robustnost pro n\u00e1ro\u010dn\u00e9 aplikace.<\/p>\n<\/div>\n<\/details>\n

\nM\u00e1m \u0161nekov\u00fd p\u0159evod, kde vstup je z kl\u00ednov\u00e9ho \u0159emene. Jak vypo\u010d\u00edt\u00e1m nap\u00ednac\u00ed s\u00edlu \u0159emene pro v\u00fdpo\u010det zat\u00ed\u017een\u00ed lo\u017eiska?+<\/span><\/summary>\n
\n

Efektivn\u00ed nap\u011bt\u00ed kl\u00ednov\u00e9ho \u0159emene (s\u00edla vytv\u00e1\u0159ej\u00edc\u00ed kroutic\u00ed moment) se rovn\u00e1 kroutic\u00edmu momentu motoru d\u011blen\u00e9mu polom\u011brem \u0159emenice: F_efektivn\u00ed = T_motor \/ r_\u0159emenice. Celkov\u00e9 nap\u011bt\u00ed \u0159emene aplikovan\u00e9 radi\u00e1ln\u011b na h\u0159\u00eddel je vektorov\u00fd sou\u010det nap\u011bt\u00ed na napnut\u00e9 stran\u011b T1 a nap\u011bt\u00ed na voln\u00e9 stran\u011b T2: F_\u0159emen = T1 + T2. Pro p\u0159evod kl\u00ednov\u00fdm \u0159emenem plat\u00ed T1\/T2 = e^(mu_V x theta), kde mu_V je koeficient t\u0159en\u00ed kl\u00ednov\u00e9ho \u0159emene (~0,4-0,5) a theta je \u00fahel op\u00e1s\u00e1n\u00ed. Konzervativn\u00ed aproximace pro v\u00fdpo\u010det zat\u00ed\u017een\u00ed lo\u017eiska: F_\u0159emen = 2,5 x F_efektivn\u00ed pro norm\u00e1ln\u011b napnut\u00fd pohon kl\u00ednov\u00fdm \u0159emenem. Tato s\u00edla \u0159emene p\u016fsob\u00ed radi\u00e1ln\u011b v poloze st\u0159edov\u00e9 osy \u0159emene na h\u0159\u00eddeli a p\u0159id\u00e1v\u00e1 se k radi\u00e1ln\u00ed s\u00edle z\u00e1b\u011bru. Kombinovan\u00e1 radi\u00e1ln\u00ed s\u00edla Fr_celkov\u00e1 pro v\u00fdpo\u010det lo\u017eiska je vektorov\u00fd sou\u010det F_\u0159emen a Fr_z\u00e1b\u011bru v z\u00e1vislosti na \u00fahlu mezi nimi.<\/p>\n<\/div>\n<\/details>\n

\nJak dlouho by m\u011bla vydr\u017eet lo\u017eiska ve spr\u00e1vn\u011b navr\u017een\u00e9m \u0161nekov\u00e9m p\u0159evodu?+<\/span><\/summary>\n
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P\u0159i spr\u00e1vn\u00e9m v\u00fdb\u011bru lo\u017eiska (kuli\u010dkov\u00e1 lo\u017eiska s koso\u00fahl\u00fdm stykem pro \u0161nekov\u00fd h\u0159\u00eddel, spr\u00e1vn\u00fd v\u00fdpo\u010det kombinovan\u00e9ho zat\u00ed\u017een\u00ed, spr\u00e1vn\u00e9 uspo\u0159\u00e1d\u00e1n\u00ed mont\u00e1\u017ee) by c\u00edlov\u00e1 \u017eivotnost lo\u017eiska L10 m\u011bla odpov\u00eddat nebo p\u0159ekra\u010dovat \u017eivotnost soukol\u00ed \u2013 obvykle 15 000\u201330 000 hodin u pr\u016fmyslov\u00fdch pohon\u016f. Pokud je \u017eivotnost lo\u017eiska v\u00fdrazn\u011b krat\u0161\u00ed ne\u017e \u017eivotnost p\u0159evodu, je specifikace lo\u017eiska nespr\u00e1vn\u00e1 nebo je mont\u00e1\u017e nespr\u00e1vn\u00e1. V praxi jsou poruchy lo\u017eisek ve \u0161nekov\u00fdch p\u0159evodech t\u00e9m\u011b\u0159 v\u017edy zp\u016fsobeny jednou ze t\u0159\u00ed p\u0159\u00ed\u010din: nespr\u00e1vn\u00fd typ lo\u017eiska (DGBB, kde je vy\u017eadov\u00e1n koso\u00fahl\u00fd styk), nespr\u00e1vn\u00fd v\u00fdpo\u010det zat\u00ed\u017een\u00ed (nen\u00ed zahrnuto vn\u011bj\u0161\u00ed zat\u00ed\u017een\u00ed) nebo nespr\u00e1vn\u00e1 mont\u00e1\u017e (ob\u011b lo\u017eiska pevn\u00e1, co\u017e vytv\u00e1\u0159\u00ed tepeln\u00e9 omezen\u00ed). Spr\u00e1vn\u011b specifikovan\u00e9 a namontovan\u00e9 lo\u017eisko ve \u0161nekov\u00e9m p\u0159evodu by nem\u011blo b\u00fdt pl\u00e1novanou n\u00e1hradou b\u011bhem \u017eivotnosti soukol\u00ed.<\/p>\n<\/div>\n<\/details>\n

\nJak\u00e9 je spr\u00e1vn\u00e9 p\u0159edp\u011bt\u00ed pro kuli\u010dkov\u00e1 lo\u017eiska s koso\u00fahl\u00fdm stykem montovan\u00e1 z\u00e1dy k sob\u011b na \u0161nekov\u00e9 h\u0159\u00eddeli?+<\/span><\/summary>\n
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Velikost p\u0159edp\u011bt\u00ed z\u00e1vis\u00ed na velikosti lo\u017eiska, podm\u00ednk\u00e1ch zat\u00ed\u017een\u00ed a ot\u00e1\u010dk\u00e1ch. Obecn\u00e9 pokyny: st\u0159edn\u00ed p\u0159edp\u011bt\u00ed (obvykle 1-3% z\u00e1kladn\u00ed dynamick\u00e9 \u00fanosnosti C) pro pr\u016fmyslov\u00e9 \u0161nekov\u00e9 p\u0159evodovky p\u0159i norm\u00e1ln\u00edch ot\u00e1\u010dk\u00e1ch (\u0161nekov\u00e1 h\u0159\u00eddel 500\u20131500 ot.\/min). Lehk\u00e9 p\u0159edp\u011bt\u00ed pro vysokorychlostn\u00ed pohony (\u0161nekov\u00e1 h\u0159\u00eddel nad 1500 ot.\/min), aby se zabr\u00e1nilo nadm\u011brn\u00e9mu zah\u0159\u00edv\u00e1n\u00ed z valiv\u00e9ho kontaktu lo\u017eiska p\u0159i p\u0159edp\u011bt\u00ed. Vysok\u00e9 p\u0159edp\u011bt\u00ed pro po\u017eadavky na vysokou tuhost (p\u0159esn\u00e9 robotick\u00e9 spoje, polohovac\u00ed syst\u00e9my), kde je t\u0159eba minimalizovat pr\u016fhyb h\u0159\u00eddele p\u0159i zat\u00ed\u017een\u00ed. P\u0159edp\u011bt\u00ed lze aplikovat pomoc\u00ed distan\u010dn\u00edch podlo\u017eek lo\u017eiska mezi vnit\u0159n\u00edmi krou\u017eky, pomoc\u00ed pru\u017en\u00fdch podlo\u017eek nebo utahovac\u00edm momentem mont\u00e1\u017en\u00ed matice. Konkr\u00e9tn\u00ed ozna\u010den\u00ed lo\u017eiska a ot\u00e1\u010dky h\u0159\u00eddele naleznete v tabulce p\u0159edp\u011bt\u00ed v\u00fdrobce lo\u017eisek.<\/p>\n<\/div>\n<\/details>\n

\nM\u016fj \u0161nekov\u00fd p\u0159evod vyd\u00e1v\u00e1 duniv\u00fd zvuk, kter\u00fd se m\u011bn\u00ed s ot\u00e1\u010dkami h\u0159\u00eddele, ale neodpov\u00edd\u00e1 z\u00e1b\u011brov\u00e9 frekvenci. Mohlo by se jednat o probl\u00e9m s lo\u017eiskem?+<\/span><\/summary>\n
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Ano, t\u00e9m\u011b\u0159 jist\u011b. Hluk lo\u017eiska v pohonu \u0161nekov\u00fdm p\u0159evodem m\u00e1 odli\u0161n\u00fd charakter od hluku z\u00e1b\u011bru ozuben\u00e9ho kola: hluk lo\u017eiska obvykle produkuje \u0161irokop\u00e1smov\u00e9 dun\u011bn\u00ed nebo sy\u010den\u00ed, kter\u00e9 se zvy\u0161uje s rychlost\u00ed, sp\u00ed\u0161e ne\u017e t\u00f3nov\u00fd \u0161um na frekvenci z\u00e1b\u011bru a jej\u00edch harmonick\u00fdch, kter\u00e9 produkuj\u00ed probl\u00e9my se z\u00e1b\u011brem ozuben\u00e9ho kola. Pro rozli\u0161en\u00ed: vypo\u010d\u00edtejte frekvenci z\u00e1b\u011bru (ot\u00e1\u010dky \u0161nekov\u00e9ho h\u0159\u00eddele x z1 \/ 60 Hz). Pokud dominantn\u00ed \u0161umov\u00e1 frekvence kop\u00edruje ot\u00e1\u010dky h\u0159\u00eddele, ale NEN\u00cd na frekvenci z\u00e1b\u011bru nebo jej\u00edch harmonick\u00fdch, poch\u00e1z\u00ed hluk sp\u00ed\u0161e z kontaktu valiv\u00fdch t\u011bles v lo\u017eisk\u00e1ch ne\u017e ze z\u00e1b\u011bru ozuben\u00e9ho kola. Specifick\u00e9 frekvence vad lo\u017eisek (vnit\u0159n\u00ed krou\u017eek BPFI, vn\u011bj\u0161\u00ed krou\u017eek BPFO, valiv\u00e1 t\u011blesa BSF) lze vypo\u010d\u00edtat z geometrie lo\u017eiska, pokud je k dispozici, co\u017e umo\u017e\u0148uje je\u0161t\u011b p\u0159esn\u011bj\u0161\u00ed identifikaci.<\/p>\n<\/div>\n<\/details>\n

\nJak\u00e9 uspo\u0159\u00e1d\u00e1n\u00ed lo\u017eisek m\u00e1m pou\u017e\u00edt pro vertik\u00e1ln\u00ed \u0161nekov\u00fd h\u0159\u00eddel (motor naho\u0159e, v\u00fdstupn\u00ed h\u0159\u00eddel dole)?+<\/span><\/summary>\n
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Vertik\u00e1ln\u00ed orientace \u0161nekov\u00e9ho h\u0159\u00eddele m\u011bn\u00ed sm\u011br gravita\u010dn\u00ed slo\u017eky vzhledem k ose h\u0159\u00eddele. Ve vertik\u00e1ln\u00ed orientaci p\u016fsob\u00ed hmotnost \u0161nekov\u00e9ho h\u0159\u00eddele sm\u011brem dol\u016f pod\u00e9l osy h\u0159\u00eddele \u2013 \u010d\u00edm\u017e se zvy\u0161uje axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed spodn\u00edho lo\u017eiska a potenci\u00e1ln\u011b se sni\u017euje zat\u00ed\u017een\u00ed horn\u00edho lo\u017eiska. U vertik\u00e1ln\u00edch h\u0159\u00eddel\u00ed: spodn\u00ed lo\u017eisko mus\u00ed b\u00fdt pevn\u00e9 (axi\u00e1ln\u00ed) lo\u017eisko, schopn\u00e9 n\u00e9st jak axi\u00e1ln\u00ed axi\u00e1ln\u00ed s\u00edlu Fa1 v z\u00e1b\u011bru \u0161neku, tak i slo\u017eku hmotnosti h\u0159\u00eddele p\u016fsob\u00edc\u00ed dol\u016f. Horn\u00ed lo\u017eisko je plovouc\u00ed lo\u017eisko. Ov\u011b\u0159te, zda je gravita\u010dn\u00ed slo\u017eka hmotnosti h\u0159\u00eddele zahrnuta ve v\u00fdpo\u010dtu axi\u00e1ln\u00edho zat\u00ed\u017een\u00ed pro spodn\u00ed pevn\u00e9 lo\u017eisko. U \u0161nekov\u00e9ho h\u0159\u00eddele v modulu M5 m\u016f\u017ee b\u00fdt hmotnost h\u0159\u00eddele 3\u20138 kg \u2013 co\u017e vytv\u00e1\u0159\u00ed axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed 30\u201380 N od gravitace, co\u017e je mal\u00e9 ve srovn\u00e1n\u00ed s typick\u00fdmi axi\u00e1ln\u00edmi zat\u00ed\u017een\u00edmi n\u011bkolik kN, ale m\u011blo by b\u00fdt potvrzeno.<\/p>\n<\/div>\n<\/details>\n

\nJak specifikuji osazen\u00ed h\u0159\u00eddele a otvor t\u011blesa pro spr\u00e1vnou mont\u00e1\u017e lo\u017eiska s koso\u00fahl\u00fdm stykem?+<\/span><\/summary>\n
\n

Kuli\u010dkov\u00e1 lo\u017eiska s koso\u00fahl\u00fdm stykem montovan\u00e1 z\u00e1dy k sob\u011b vy\u017eaduj\u00ed pro spr\u00e1vn\u00e9 usazen\u00ed p\u0159esn\u00e9 rozm\u011bry osazen\u00ed h\u0159\u00eddele a podm\u00ednky v otvoru t\u011blesa. Kritick\u00e9 parametry: v\u00fd\u0161ka osazen\u00ed h\u0159\u00eddele by m\u011bla b\u00fdt mezi 50% a 80% v\u00fd\u0161ky vnit\u0159n\u00edho krou\u017eku lo\u017eiska, aby byla zaji\u0161t\u011bna dostate\u010dn\u00e1 kontaktn\u00ed plocha bez kolize s valiv\u00fdmi t\u011blesy. Pr\u016fm\u011br osazen\u00ed h\u0159\u00eddele nesm\u00ed p\u0159ekro\u010dit pr\u016fm\u011br vn\u011bj\u0161\u00ed hrany vnit\u0159n\u00edho krou\u017eku. Tolerance otvoru t\u011blesa by m\u011bla b\u00fdt H7 pro zat\u00ed\u017een\u00ed vnit\u0159n\u00edho krou\u017eku h\u0159\u00eddele rotuj\u00edc\u00edm pohybem (co\u017e plat\u00ed pro \u0161nekov\u00fd h\u0159\u00eddel), s m\u00edrn\u00fdm p\u0159esahem, aby se zabr\u00e1nilo ot\u00e1\u010den\u00ed vnit\u0159n\u00edho krou\u017eku na h\u0159\u00eddeli pod zat\u00ed\u017een\u00edm. Vn\u011bj\u0161\u00ed krou\u017eek v t\u011blese: tolerance K7 pro pevn\u00e1 lo\u017eiska, H7 nebo J7 pro plovouc\u00ed lo\u017eiska. Plastick\u00e1 n\u00e1pl\u0148 pro lo\u017eiska \u0161nekov\u00e9ho h\u0159\u00eddele: 1\/3 a\u017e 1\/2 voln\u00e9ho prostoru v dutin\u011b t\u011blesa lo\u017eiska, v\u00edce ne\u017e toto mno\u017estv\u00ed zp\u016fsobuje p\u0159eh\u0159\u00edv\u00e1n\u00ed v d\u016fsledku visk\u00f3zn\u00edho v\u00ed\u0159en\u00ed.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

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Z\u00edskejte \u00fadaje o zat\u00ed\u017een\u00ed lo\u017eisek pro va\u0161i aplikaci \u0161nekov\u00e9ho p\u0159evodu<\/h2>\n

Uve\u010fte vstupn\u00ed v\u00fdkon, ot\u00e1\u010dky motoru, p\u0159evodov\u00fd pom\u011br, konfiguraci mont\u00e1\u017ee a vn\u011bj\u0161\u00ed zat\u00ed\u017een\u00ed. Spole\u010dnost Korea Ever-Power poskytuje \u00fadaje o zat\u00ed\u017een\u00ed lo\u017eiska (axi\u00e1ln\u00ed axi\u00e1ln\u00ed s\u00edla \u0161nekov\u00e9ho h\u0159\u00eddele, radi\u00e1ln\u00ed zat\u00ed\u017een\u00ed v obou poloh\u00e1ch lo\u017eiska) pro podporu v\u00fdpo\u010dtu v\u00fdb\u011bru lo\u017eiska.<\/p>\n

Vy\u017e\u00e1dat si data o zat\u00ed\u017een\u00ed lo\u017eiska<\/a>
\nProch\u00e1zet p\u0159esn\u00e9 produkty<\/a><\/div>\n<\/div>\n<\/div>\n

St\u0159iha\u010d: Cxm<\/p>","protected":false},"excerpt":{"rendered":"

Knowledge Series \u00b7 B10 \u00b7 Shaft and Bearing Engineering Worm Gear Bearing Selection — Calculating Thrust Load, Radial Load, and L10 Service Life The worm shaft carries a thrust load of 3-5x the tangential force — orders of magnitude higher than helical gear shafts at equivalent output. Most premature bearing failures in worm gear drives […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[4774],"tags":[1394,1399],"class_list":["post-1939","post","type-post","status-publish","format-standard","hentry","category-worm-gear","tag-worm-gear","tag-worm-gear-worm"],"_links":{"self":[{"href":"https:\/\/wormwheelgear.top\/cs\/wp-json\/wp\/v2\/posts\/1939","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wormwheelgear.top\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wormwheelgear.top\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wormwheelgear.top\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wormwheelgear.top\/cs\/wp-json\/wp\/v2\/comments?post=1939"}],"version-history":[{"count":2,"href":"https:\/\/wormwheelgear.top\/cs\/wp-json\/wp\/v2\/posts\/1939\/revisions"}],"predecessor-version":[{"id":1941,"href":"https:\/\/wormwheelgear.top\/cs\/wp-json\/wp\/v2\/posts\/1939\/revisions\/1941"}],"wp:attachment":[{"href":"https:\/\/wormwheelgear.top\/cs\/wp-json\/wp\/v2\/media?parent=1939"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wormwheelgear.top\/cs\/wp-json\/wp\/v2\/categories?post=1939"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wormwheelgear.top\/cs\/wp-json\/wp\/v2\/tags?post=1939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}