{"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\/sk\/worm-gear-bearing-selection-calculating-thrust-load-radial-load-and-l10-service-life\/","title":{"rendered":"V\u00fdber lo\u017eiska z\u00e1vitovkov\u00e9ho prevodu \u2013 v\u00fdpo\u010det axi\u00e1lneho za\u0165a\u017eenia, radi\u00e1lneho za\u0165a\u017eenia a \u017eivotnosti L10"},"content":{"rendered":"
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S\u00e9ria znalost\u00ed \u00b7 B10 \u00b7 In\u017einierstvo hriade\u013eov a lo\u017e\u00edsk<\/p>\n

\u0160nekov\u00fd prevod V\u00fdber lo\u017eiska<\/span> \u2014 V\u00fdpo\u010det axi\u00e1lneho za\u0165a\u017eenia, radi\u00e1lneho za\u0165a\u017eenia a \u017eivotnosti L10<\/h1>\n

Z\u00e1vitovkov\u00fd hriade\u013e nesie axi\u00e1lne za\u0165a\u017eenie 3 a\u017e 5-n\u00e1sobok tangenci\u00e1lnej sily \u2013 r\u00e1dovo vy\u0161\u0161ie ako hriadele so \u0161pir\u00e1lov\u00fdmi ozuben\u00fdmi kolesami pri ekvivalentnom v\u00fdkone. V\u00e4\u010d\u0161ina pred\u010dasn\u00fdch por\u00fach lo\u017e\u00edsk v z\u00e1vitovkov\u00fdch prevodoch je sp\u00f4soben\u00e1 v\u00fdberom lo\u017e\u00edsk pre radi\u00e1lne za\u0165a\u017eenie bez zoh\u013eadnenia tohto axi\u00e1lneho axi\u00e1lneho za\u0165a\u017eenia. T\u00e1to pr\u00edru\u010dka poskytuje v\u00fdpo\u010dty.<\/p>\n

Vzorec pre axi\u00e1lny \u0165ah<\/span>V\u00fdpo\u010det radi\u00e1lneho za\u0165a\u017eenia<\/span>L10 Do\u017eivotnos\u0165<\/span>V\u00fdber 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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Porucha lo\u017eiska dva mesiace po v\u00fdmene ozuben\u00e9ho kolesa<\/h2>\n

V marci v z\u00e1vode na spracovanie potrav\u00edn vymenili z\u00e1vitovkov\u00e9 koleso na rohovom pohone dopravn\u00edka. V m\u00e1ji pohon op\u00e4\u0165 zlyhal \u2013 rovnak\u00e9 pr\u00edznaky, rovnak\u00fd hlukov\u00fd profil. \u00dadr\u017eb\u00e1rsky t\u00edm objednal \u010fal\u0161ie ozuben\u00e9 koleso a po\u010das \u010dakania na dodanie rozobral pohon, aby potvrdil sp\u00f4sob poruchy. Boky zubov z\u00e1vitovkov\u00e9ho kolesa boli bezchybn\u00e9 \u2013 od marcovej in\u0161tal\u00e1cie sa ich takmer nedotkli. Lo\u017eisk\u00e1 z\u00e1vitovkov\u00e9ho hriade\u013ea zlyhali: vonkaj\u0161\u00ed kr\u00fa\u017eok pevn\u00e9ho lo\u017eiska mal odlupovaciu trhlinu zodpovedaj\u00facu \u00fanave z axi\u00e1lneho pre\u0165a\u017eenia.<\/p>\n

Vy\u0161etrovanie odhalilo: dopravn\u00edk pou\u017e\u00edval spojenie klinov\u00fdm reme\u0148om od motora k z\u00e1vitovkov\u00e9mu hriade\u013eu s radi\u00e1lnym nap\u00e4t\u00edm reme\u0148a 2,5 kN na previs hriade\u013ea. \u00dadr\u017eb\u00e1rsky t\u00edm vymenil ozuben\u00e9 koleso, ale nie lo\u017eisk\u00e1 \u2013 a neprepo\u010d\u00edtal, \u010di existuj\u00face lo\u017eisk\u00e1 (\u0161tandardn\u00e9 gu\u013ekov\u00e9 lo\u017eisk\u00e1 s hlbokou dr\u00e1\u017ekou, s\u00e9ria 6206) dok\u00e1\u017eu zvl\u00e1dnu\u0165 kombinovan\u00e9 radi\u00e1lne a axi\u00e1lne za\u0165a\u017eenie. \u0160tandardn\u00e9 gu\u013ekov\u00e9 lo\u017eisk\u00e1 s hlbokou dr\u00e1\u017ekou zvl\u00e1daj\u00fa axi\u00e1lne za\u0165a\u017eenie pribli\u017ene 30% ich menovitej radi\u00e1lnej \u00fanosnosti. Kombinovan\u00e9 za\u0165a\u017eenie lo\u017eiska na tomto hriadeli prekro\u010dilo menovit\u00fa \u00fanosnos\u0165 6206 1,8-kr\u00e1t. Lo\u017eisko bolo ods\u00faden\u00e9 na poruchu bez oh\u013eadu na to, \u010di bolo ozuben\u00e9 koleso vymenen\u00e9 alebo nie.<\/p>\n

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Hlavn\u00fd probl\u00e9m:<\/strong> Hriadele z\u00e1vitovkov\u00fdch prevodov pren\u00e1\u0161aj\u00fa radi\u00e1lne za\u0165a\u017eenie (z tangenci\u00e1lnej sily v z\u00e1bere ozuben\u00fdch kolies, vonkaj\u0161ieho nap\u00e4tia reme\u0148a alebo re\u0165aze) aj vysok\u00e9 axi\u00e1lne (axi\u00e1lne) za\u0165a\u017eenie (z reak\u010dnej sily v \u0161pir\u00e1lovom z\u00e1bere, ktor\u00e1 sa sna\u017e\u00ed vytla\u010di\u0165 z\u00e1vitovkov\u00fd hriade\u013e pozd\u013a\u017e jeho osi). Dr\u00e1\u017ekov\u00e9 gu\u013ekov\u00e9 lo\u017eisk\u00e1 nie s\u00fa vhodn\u00e9 pre aplik\u00e1cie so z\u00e1vitovkov\u00fdmi hriade\u013emi, s v\u00fdnimkou naj\u013eah\u0161\u00edch prev\u00e1dzok. Spr\u00e1vnou \u0161pecifik\u00e1ciou pre z\u00e1vitovkov\u00fd hriade\u013e vo v\u0161etk\u00fdch aplik\u00e1ci\u00e1ch okrem naj\u013eah\u0161\u00edch s\u00fa gu\u013ekov\u00e9 lo\u017eisk\u00e1 s kosouhl\u00fdm stykom alebo ku\u017eel\u00edkov\u00e9 lo\u017eisk\u00e1 \u2013 v usporiadan\u00ed s pevn\u00fdm pl\u00e1vaj\u00facim povrchom alebo chrbtom k sebe na zvl\u00e1dnutie obojsmern\u00e9ho axi\u00e1lneho tlaku.<\/p>\n<\/div>\n

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Axi\u00e1lny \u0165ah z\u00e1vitovkov\u00e9ho hriade\u013ea \u2013 pre\u010do je tak\u00fd ve\u013ek\u00fd<\/h2>\n

V z\u00e1vitovkovom prevode sa kontaktn\u00e1 sila zubov v mieste z\u00e1beru rozklad\u00e1 na tri zlo\u017eky p\u00f4sobiace na ka\u017ed\u00fd hriade\u013e: tangenci\u00e1lnu (vytv\u00e1raj\u00facu kr\u00fatiaci moment), radi\u00e1lnu (odde\u013eovacia sila kolm\u00e1 na rozstupov\u00fd valec) a axi\u00e1lnu (axi\u00e1lna sila pozd\u013a\u017e osi hriade\u013ea). V \u0161pir\u00e1lovom ozubenom p\u00e1re je axi\u00e1lna axi\u00e1lna sila typicky 20-40% tangenci\u00e1lnej sily. V z\u00e1vitovkovom prevode je tento vz\u0165ah z\u00e1sadne odli\u0161n\u00fd a ove\u013ea pr\u00edsnej\u0161\u00ed pre z\u00e1vitovkov\u00fd hriade\u013e.<\/p>\n

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Komponenty sily z\u00e1vitovkov\u00e9ho hriade\u013ea<\/div>\n
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Axi\u00e1lny tlak z\u00e1vitovkov\u00e9ho hriade\u013ea (=tangenci\u00e1lna sila kolesa)<\/div>\n
Fa1 = Ft2 = 2T2 \/ d2<\/div>\n
T2 = v\u00fdstupn\u00fd kr\u00fatiaci moment (Nm), d2 = priemer rozstupu kolies (m)<\/div>\n<\/div>\n
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Tangens\u00e1lna sila z\u00e1vitovkov\u00e9ho hriade\u013ea<\/div>\n
Ft1 = 2T1 \/ d1<\/div>\n
T1 = vstupn\u00fd kr\u00fatiaci moment (Nm), d1 = priemer rozstupu z\u00e1vitovky (m)<\/div>\n<\/div>\n
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Radi\u00e1lna sila z\u00e1vitovkov\u00e9ho hriade\u013ea<\/div>\n
Fr1 = Fa2 = Ft2 x tan(alfa_n) \/ cos(lambda)<\/div>\n
alfa_n = uhol norm\u00e1lneho tlaku (20 stup\u0148ov), lambda = uhol n\u00e1behu<\/div>\n<\/div>\n
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Vz\u0165ah medzi axi\u00e1lnym a tangenci\u00e1lnym (z\u00e1vitovkov\u00fd hriade\u013e)<\/div>\n
Fa1 \/ Ft1 = ix d1 \/ d2 = i \/ q<\/div>\n
Pre i=50, q=12: Fa1 = 50\/12 x Ft1 = 4,17 x Ft1<\/div>\n<\/div>\n<\/div>\n

Kritick\u00fd poznatok: pre z\u00e1vitovkov\u00fd pohon s prevodov\u00fdm pomerom 50:1 (q = 12) je axi\u00e1lna sila na z\u00e1vitovkovom hriadeli 4,17-n\u00e1sobok tangenci\u00e1lnej sily<\/strong> na z\u00e1vitovkovom hriadeli. Ke\u010f\u017ee v\u00e4\u010d\u0161ina in\u017einierov po\u010d\u00edta za\u0165a\u017eenie lo\u017eiska z kr\u00fatiaceho momentu hriade\u013ea a polomeru st\u00fapania (ud\u00e1vaj\u00face tangenci\u00e1lnu silu), vypo\u010d\u00edtavaj\u00fa iba 24% skuto\u010dn\u00e9ho axi\u00e1lneho za\u0165a\u017eenia lo\u017eiska. Lo\u017eisko z\u00e1vitovkov\u00e9ho hriade\u013ea dimenzovan\u00e9 len na tangenci\u00e1lnu silu je pre axi\u00e1lne za\u0165a\u017eenie poddimenzovan\u00e9 faktorom 4. Toto je naj\u010dastej\u0161ia chyba pri kon\u0161trukcii lo\u017eiska z\u00e1vitovkov\u00e9ho prevodu.<\/p>\n

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V\u00fdber typu lo\u017eiska \u2013 z\u00e1vitovkov\u00fd hriade\u013e vs. hriade\u013e kolesa<\/h2>\n
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Z\u00e1vitovkov\u00fd hriade\u013e \u2013 pevn\u00e9 lo\u017eisko<\/h4>\n
Gu\u013e\u00f4\u010dkov\u00e9 lo\u017eisko s kosouhl\u00fdm stykom (p\u00e1r, chrbtom k sebe)<\/div>\n

Pevn\u00e9 lo\u017eisko z\u00e1vitovkov\u00e9ho hriade\u013ea mus\u00ed nies\u0165 radi\u00e1lnu z\u00e1berov\u00fa silu aj pln\u00fd obojsmern\u00fd axi\u00e1lny posuv. T\u00fato kombinovan\u00fa nosnos\u0165 zabezpe\u010duj\u00fa gu\u013ekov\u00e9 lo\u017eisk\u00e1 s kosouhl\u00fdm stykom, ktor\u00e9 s\u00fa ulo\u017een\u00e9 chrbtom k sebe (uskladnenie DB) alebo \u010delom k sebe (uskladnenie DF). Kontaktn\u00fd uhol (zvy\u010dajne 25 \u2013 40 stup\u0148ov) ur\u010duje pomer axi\u00e1lnej a radi\u00e1lnej \u00fanosnosti \u2013 vy\u0161\u0161\u00ed kontaktn\u00fd uhol poskytuje v\u00e4\u010d\u0161iu axi\u00e1lnu \u00fanosnos\u0165. Pre v\u00e4\u010d\u0161inu aplik\u00e1ci\u00ed z\u00e1vitovkov\u00fdch hriade\u013eov s\u00fa vhodn\u00e9 lo\u017eisk\u00e1 s kosouhl\u00fdm stykom s kontaktn\u00fdm uhlom 30 alebo 40 stup\u0148ov.<\/p>\n<\/div>\n

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Z\u00e1vitovkov\u00fd hriade\u013e \u2013 pl\u00e1vaj\u00face lo\u017eisko<\/h4>\n
Gu\u013e\u00f4\u010dkov\u00e9 lo\u017eisko s hlbokou dr\u00e1\u017ekou (iba radi\u00e1lne, bez axi\u00e1lneho ulo\u017eenia)<\/div>\n

Pl\u00e1vaj\u00face lo\u017eisko na neaxi\u00e1lnom konci z\u00e1vitovkov\u00e9ho hriade\u013ea pren\u00e1\u0161a iba radi\u00e1lnu zlo\u017eku za\u0165a\u017eenia zo z\u00e1beru a ak\u00e9ko\u013evek vonkaj\u0161ie radi\u00e1lne za\u0165a\u017eenie. Umo\u017e\u0148uje axi\u00e1lne tepeln\u00e9 roz\u0165a\u017eenie hriade\u013ea bez vzniku axi\u00e1lnej obmedzuj\u00facej sily. \u0160tandardn\u00e9 gu\u013ekov\u00e9 lo\u017eisk\u00e1 s hlbokou dr\u00e1\u017ekou s\u00fa vhodn\u00e9 pre pl\u00e1vaj\u00facu polohu, preto\u017ee sa tu nepren\u00e1\u0161a \u017eiadne axi\u00e1lne za\u0165a\u017eenie. V\u0155tanie telesa pl\u00e1vaj\u00faceho lo\u017eiska je zvy\u010dajne dimenzovan\u00e9 tak, aby umo\u017e\u0148ovalo mal\u00fd vo\u013en\u00fd axi\u00e1lny pohyb (0,3 \u2013 0,8 mm) na prisp\u00f4sobenie sa tepelnej roz\u0165a\u017enosti.<\/p>\n<\/div>\n

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Hriade\u013e kolesa \u2014 obe lo\u017eisk\u00e1<\/h4>\n
Gu\u013ekov\u00e9 lo\u017eisk\u00e1 s hlbokou dr\u00e1\u017ekou alebo val\u010dekov\u00e9 lo\u017eisk\u00e1<\/div>\n

Hriade\u013e z\u00e1vitovkov\u00e9ho kolesa pren\u00e1\u0161a v\u00fdstupn\u00fd kr\u00fatiaci moment radi\u00e1lne a reak\u010dn\u00fa radi\u00e1lnu silu z\u00e1beru (Fr2). Axi\u00e1lna sila na hriadeli kolesa (Fa2) sa rovn\u00e1 Fr1, radi\u00e1lnej sile na hriadeli z\u00e1vitovkov\u00e9ho kolesa \u2013 zvy\u010dajne malej v porovnan\u00ed s radi\u00e1lnou \u00fanosnos\u0165ou hriade\u013ea kolesa. Vo v\u00e4\u010d\u0161ine pr\u00edpadov s\u00fa pre aplik\u00e1cie s hriade\u013emi kolies posta\u010duj\u00face \u0161tandardn\u00e9 gu\u013ekov\u00e9 lo\u017eisk\u00e1 s hlbokou dr\u00e1\u017ekou. Pre aplik\u00e1cie s vysok\u00fdm v\u00fdstupn\u00fdm kr\u00fatiacim momentom (modul M8+, prev\u00e1dzkov\u00fd re\u017eim D3) m\u00f4\u017eu by\u0165 pre ich vy\u0161\u0161iu radi\u00e1lnu \u00fanosnos\u0165 uprednost\u0148ovan\u00e9 val\u010dekov\u00e9 lo\u017eisk\u00e1.<\/p>\n<\/div>\n

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Z\u00e1vitovkov\u00fd hriade\u013e \u2013 pridanie vonkaj\u0161ieho za\u0165a\u017eenia<\/h4>\n
Kombinovan\u00e9 za\u0165a\u017eenie: Sila siete + Napnutie reme\u0148a\/re\u0165aze<\/div>\n

Ke\u010f je z\u00e1vitovkov\u00fd hriade\u013e poh\u00e1\u0148an\u00fd z motora pomocou klinov\u00e9ho reme\u0148a alebo re\u0165aze, nap\u00e4tie reme\u0148a\/re\u0165aze prid\u00e1va k previsu hriade\u013ea radi\u00e1lnu silu, ktor\u00e1 m\u00f4\u017ee presiahnu\u0165 radi\u00e1lnu silu siete. T\u00e1to vonkaj\u0161ia sila sa mus\u00ed vektorovo pripo\u010d\u00edta\u0165 k radi\u00e1lnej sile siete pre v\u00fdpo\u010det za\u0165a\u017eenia lo\u017eiska. Nap\u00e4tie reme\u0148a p\u00f4sob\u00ed kolmo na rozp\u00e4tie reme\u0148a; radi\u00e1lna sila siete p\u00f4sob\u00ed pozd\u013a\u017e \u010diary medzi hriade\u013emi. V\u00fdslednica z\u00e1vis\u00ed od uhla medzi nimi. V najhor\u0161om pr\u00edpade ich s\u010d\u00edtajte line\u00e1rne: F_lo\u017eisko = F_reme\u0148 + F_radi\u00e1lna_sita.<\/p>\n<\/div>\n<\/div>\n

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V\u00fdpo\u010det \u017eivotnosti lo\u017eiska \u2014 L10 hod\u00edn pre aplik\u00e1ciu so z\u00e1vitovkov\u00fdm hriade\u013eom<\/h2>\n

V\u00fdpo\u010det \u017eivotnosti lo\u017eiska pod\u013ea normy ISO (L10 \u2013 \u017eivotnos\u0165, pri ktorej sa o\u010dak\u00e1va, \u017ee identick\u00e9 lo\u017eisk\u00e1 10% zlyhaj\u00fa v d\u00f4sledku \u00fanavy materi\u00e1lu) vy\u017eaduje ekvivalentn\u00e9 dynamick\u00e9 za\u0165a\u017eenie lo\u017eiska P, ktor\u00e9 kombinuje radi\u00e1lnu a axi\u00e1lnu zlo\u017eku pre lo\u017eisk\u00e1 s kosouhl\u00fdm stykom.<\/p>\n

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Postupnos\u0165 v\u00fdpo\u010dtu \u017eivotnosti L10<\/div>\n
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Krok 1: V\u00fdpo\u010det ekvivalentn\u00e9ho dynamick\u00e9ho za\u0165a\u017eenia lo\u017eiska P<\/div>\n
P = X x Fr + Y x Fa<\/div>\n
X = s\u00fa\u010dinite\u013e radi\u00e1lneho za\u0165a\u017eenia, Y = s\u00fa\u010dinite\u013e axi\u00e1lneho za\u0165a\u017eenia (z katal\u00f3gu lo\u017e\u00edsk, z\u00e1vis\u00ed od pomerov Fa\/C0 a Fa\/Fr), Fr = radi\u00e1lne za\u0165a\u017eenie lo\u017eiska (N), Fa = axi\u00e1lne za\u0165a\u017eenie lo\u017eiska (N)<\/div>\n<\/div>\n
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Krok 2: V\u00fdpo\u010det z\u00e1kladnej \u017eivotnosti L10 v mili\u00f3noch ot\u00e1\u010dok<\/div>\n
L10 = (C\/P)^p<\/div>\n
C = z\u00e1kladn\u00e1 dynamick\u00e1 \u00fanosnos\u0165 (N, z katal\u00f3gu lo\u017e\u00edsk), P = ekvivalentn\u00e9 dynamick\u00e9 za\u0165a\u017eenie (N), p = 3 pre gu\u013ekov\u00e9 lo\u017eisk\u00e1, 10\/3 pre valiv\u00e9 lo\u017eisk\u00e1<\/div>\n<\/div>\n
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Krok 3: Prevod na prev\u00e1dzkov\u00e9 hodiny<\/div>\n
L10h = (L10 x 10^6) \/ (60 x n)<\/div>\n
n = ot\u00e1\u010dky hriade\u013ea v ot.\/min. V\u00fdsledkom je \u017eivotnos\u0165 L10 v hodin\u00e1ch<\/div>\n<\/div>\n
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Krok 4: Pou\u017eite faktor modifik\u00e1cie \u017eivotnosti<\/div>\n
Lnm = a1 x a_ISO x L10<\/div>\n
a1 = faktor spo\u013eahlivosti (a1=1 pre spo\u013eahlivos\u0165 90%, 0,53 pre 95%), a_ISO = faktor syst\u00e9mov\u00e9ho pr\u00edstupu zoh\u013ead\u0148uj\u00faci mazanie a kontamin\u00e1ciu<\/div>\n<\/div>\n<\/div>\n

Pracovan\u00fd pr\u00edklad: Z\u00e1vitovkov\u00fd pohon 50:1, 3 kW, vstup 1450 ot.\/min.<\/h3>\n
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Geometria ozuben\u00e9ho kolesa<\/span>
\nz1=1, z2=50, m=4, d1=48 mm, d2=200 mm, lambda=1,52 stup\u0148a, \u00fa\u010dinnos\u0165 62%<\/span><\/div>\n
V\u00fdstupn\u00fd kr\u00fatiaci 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\u00e1lny posuv z\u00e1vitovkov\u00e9ho hriade\u013ea (Fa1)<\/span>
\nFa1 = 2T2\/d2 = 2 x 612 \/ 0,200 = 6 120 N<\/span><\/div>\n
Tangenci\u00e1lna sila z\u00e1vitovkov\u00e9ho hriade\u013ea (Ft1)<\/span>
\nFt1 = 2T1\/d1 = 2 x (3000\/3,036\u00d70,62)\/(0,048 x 2) = ??? Nech T1=P\/(omega1) = 3000\/(1450x2\u03c0\/60) = 19,75 Nm; Ft1 = 2\u00d719,75\/0,048 = 823 N<\/span><\/div>\n
Kontrola pomeru: Fa1\/Ft1<\/span>
\n6120\/823 = 7,4x \u2014 axi\u00e1lna os z\u00e1vitovkov\u00e9ho hriade\u013ea je 7,4-kr\u00e1t tangenci\u00e1lna<\/span><\/div>\n
Ekvivalentn\u00e9 za\u0165a\u017eenie lo\u017eiska pre uhlov\u00fd styk 7210 (chrbtom k sebe)<\/span>
\nFr=1200N (sie\u0165ovina + p\u00e1s), Fa=6120N; z katal\u00f3gu X=0,35, Y=0,57: P = 0,35\u00d71200 + 0,57\u00d76120 = 420 + 3488 = 3908 N<\/span><\/div>\n
\u017divotnos\u0165 L10 (7210, C=32500N, n=1450 ot.\/min.)<\/span>
\nL10 = (32500\/3908)^3 = 578 mili\u00f3nov ot\u00e1\u010dok; L10h = 578e6\/(60\u00d71450) = 6644 hod\u00edn<\/span><\/div>\n
Porovnanie s hlbokou dr\u00e1\u017ekou 6210 (C=28100N, iba radi\u00e1lna)<\/span>
\nNespr\u00e1vne dimenzovan\u00e9 iba pre radi\u00e1lne za\u0165a\u017eenie: P_wrong = Fr = 1200N; L10h_wrong = (28100\/1200)^3\/(60\u00d71450) = zdanliv\u00fdch 56 000 hod\u00edn \u2013 ale skuto\u010dn\u00e1 Fa=6120N \u00faplne pre\u0165a\u017euje 6210: axi\u00e1lna kapacita 6210 ~30% z C0=16500N = 4950N \u2013 6120N t\u00fato kapacitu prekra\u010duje<\/span><\/div>\n<\/div>\n
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P\u00e4\u0165 be\u017en\u00fdch ch\u00fdb v \u0161pecifik\u00e1cii lo\u017eiska z\u00e1vitovkov\u00e9ho prevodu<\/h2>\n
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Chyba<\/th>\n\u010co sa pokaz\u00ed<\/th>\nSpr\u00e1vny pr\u00edstup<\/th>\n<\/tr>\n<\/thead>\n
gu\u013e\u00f4\u010dkov\u00e9 lo\u017eisk\u00e1 s hlbokou dr\u00e1\u017ekou na z\u00e1vitovkovom hriadeli<\/td>\nDGBB dok\u00e1\u017ee spracova\u0165 iba radi\u00e1lne prevedenie 30% ako axi\u00e1lne. Axi\u00e1lne prevedenie z\u00e1vitovkov\u00e9ho hriade\u013ea m\u00f4\u017ee ma\u0165 4-7-n\u00e1sobok radi\u00e1lneho pre\u0165a\u017eenia. Pre\u0165a\u017eenie lo\u017eiska v axi\u00e1lnom smere - \u00fanava materi\u00e1lu sp\u00f4soben\u00e1 odlupovan\u00edm v priebehu t\u00fd\u017ed\u0148ov a\u017e mesiacov.<\/td>\nGu\u013ekov\u00e9 lo\u017eisk\u00e1 s kosouhl\u00fdm stykom (p\u00e1r chrbtom k sebe) alebo ku\u017eel\u00edkov\u00e9 lo\u017eisk\u00e1 na pevnej (axi\u00e1lnej) polohe lo\u017eiska.<\/td>\n<\/tr>\n
Zabudnutie na napnutie reme\u0148a alebo re\u0165aze pri radi\u00e1lnom za\u0165a\u017een\u00ed<\/td>\nNapnutie klinov\u00e9ho reme\u0148a m\u00f4\u017ee by\u0165 radi\u00e1lne 1 500 \u2013 4 000 N na previse hriade\u013ea. Ak nie je zahrnut\u00e9, lo\u017eisko Fr je dramaticky podhodnoten\u00e9.<\/td>\nPripo\u010d\u00edtajte vektor sily napnutia reme\u0148a k radi\u00e1lnej sile siete. V najhor\u0161om pr\u00edpade pou\u017eite s\u00fa\u010det napnutia reme\u0148a na tesnej strane a uvo\u013enenej strane.<\/td>\n<\/tr>\n
Dimenzovanie oboch lo\u017e\u00edsk z\u00e1vitovkov\u00e9ho hriade\u013ea ako pevn\u00fdch lo\u017e\u00edsk<\/td>\nDve pevn\u00e9 lo\u017eisk\u00e1 na z\u00e1vitovkovom hriadeli vytv\u00e1raj\u00fa axi\u00e1lne nap\u00e4tie, ktor\u00e9 zabra\u0148uje tepelnej roz\u0165a\u017enosti. Ke\u010f sa hriade\u013e zahrieva, obe lo\u017eisk\u00e1 s\u00fa axi\u00e1lne predp\u00e4t\u00e9, \u010do ur\u00fdch\u013euje \u00fanavu materi\u00e1lu.<\/td>\nJedno pevn\u00e9 (axi\u00e1lne) lo\u017eisko + jedno pl\u00e1vaj\u00face lo\u017eisko. Pl\u00e1vaj\u00face lo\u017eisko umo\u017e\u0148uje axi\u00e1lnu tepeln\u00fa roz\u0165a\u017enos\u0165.<\/td>\n<\/tr>\n
Pou\u017eitie katal\u00f3gov\u00e9ho kr\u00fatiaceho momentu na odhad za\u0165a\u017eenia lo\u017eiska<\/td>\nKatal\u00f3gov\u00fd v\u00fdstupn\u00fd kr\u00fatiaci moment je menovit\u00fd kr\u00fatiaci moment pri menovit\u00fdch podmienkach. Skuto\u010dn\u00e9 \u0161pi\u010dkov\u00e9 kr\u00fatiace momenty (rozbeh, pre\u0165a\u017eenie) m\u00f4\u017eu by\u0165 2 a\u017e 3-kr\u00e1t vy\u0161\u0161ie a m\u00f4\u017eu sp\u00f4sobi\u0165 \u00famerne vy\u0161\u0161ie za\u0165a\u017eenie lo\u017e\u00edsk.<\/td>\nVypo\u010d\u00edtajte za\u0165a\u017eenie lo\u017eiska pri \u0161pi\u010dkovom prev\u00e1dzkovom kr\u00fatiacom momente (prev\u00e1dzkov\u00fd kr\u00fatiaci moment x prev\u00e1dzkov\u00fd faktor), nie menovit\u00fd katal\u00f3gov\u00fd kr\u00fatiaci moment.<\/td>\n<\/tr>\n
Ignorovanie typu lo\u017eiska pri v\u00fdmene chybn\u00e9ho lo\u017eiska<\/td>\nLo\u017eisko, ktor\u00e9 zlyhalo a bolo nespr\u00e1vne \u0161pecifikovan\u00e9, zlyhaje znova, ak sa nahrad\u00ed rovnakou nespr\u00e1vnou \u0161pecifik\u00e1ciou. Nahradenie rovnak\u00e9ho lo\u017eiska podobn\u00fdm lo\u017eiskom udr\u017eiava kon\u0161truk\u010dn\u00fa chybu.<\/td>\nPri v\u00fdmene chybn\u00e9ho lo\u017eiska pred objednan\u00edm n\u00e1hradn\u00e9ho dielu overte, \u010di bola p\u00f4vodn\u00e1 \u0161pecifik\u00e1cia spr\u00e1vna. Ak k poruche do\u0161lo pred\u010dasne, p\u00f4vodn\u00e1 \u0161pecifik\u00e1cia m\u00f4\u017ee by\u0165 jej hlavnou pr\u00ed\u010dinou.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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Presn\u00e1 v\u00fdroba pre spo\u013eahliv\u00fd v\u00fdkon hriade\u013ea a lo\u017eiska<\/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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K\u00f3rea Ever-Power<\/span><\/p>\n

Produkty s \u00fadajmi o za\u0165a\u017een\u00ed lo\u017eiska pre spr\u00e1vny v\u00fdber lo\u017eiska<\/h2>\n<\/div>\n
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\"Sada<\/div>\n
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\u00dadaje o za\u0165a\u017een\u00ed lo\u017eiska zahrnut\u00e9 \/ Sily z\u00e1vitovkov\u00e9ho hriade\u013ea<\/div>\n
Z\u00e1vitovkov\u00e9 koleso \u2013 s \u00fadajmi o v\u00fdpo\u010dte za\u0165a\u017eenia hriade\u013ea<\/div>\n
Spolo\u010dnos\u0165 Korea Ever-Power poskytuje \u00fadaje o za\u0165a\u017een\u00ed lo\u017eiska hriade\u013ea ako s\u00fa\u010das\u0165 potvrdenia \u0161pecifik\u00e1cie pre ka\u017ed\u00fa objedn\u00e1vku z\u00e1vitovkov\u00e9ho prevodu, kde z\u00e1kazn\u00edk uv\u00e1dza, \u017ee navrhuje usporiadanie lo\u017eiska. \u00dadaje o za\u0165a\u017een\u00ed lo\u017eiska zah\u0155\u0148aj\u00fa: axi\u00e1lnu silu z\u00e1vitovkov\u00e9ho hriade\u013ea (Fa1 = Ft2 = 2T2\/d2 pri menovitom kr\u00fatiacom momente a pri \u0161pi\u010dkovom n\u00e1vrhovom kr\u00fatiacom momente); radi\u00e1lne za\u0165a\u017eenie z\u00e1vitovkov\u00e9ho hriade\u013ea z tangenci\u00e1lnych a radi\u00e1lnych s\u00edl v z\u00e1bere; a potvrdenie geometrie z\u00e1vitovkov\u00e9ho hriade\u013ea (d1, d2, uhol st\u00fapania) potrebn\u00e9 na v\u00fdpo\u010det za\u0165a\u017eenia lo\u017eiska. Tieto \u00fadaje nie s\u00fa \u0161tandardnou prepravnou dokument\u00e1ciou \u2013 poskytuj\u00fa sa pri zad\u00e1van\u00ed objedn\u00e1vky na po\u017eiadanie. \u00dadaje o za\u0165a\u017een\u00ed lo\u017eiska si m\u00f4\u017eete vy\u017eiada\u0165 zahrnut\u00edm do dopytu po \u0161pecifik\u00e1cii. Spolo\u010dnos\u0165 Korea Ever-Power ne\u0161pecifikuje usporiadanie lo\u017eiska z\u00e1kazn\u00edka \u2013 v\u00fdber lo\u017eiska zost\u00e1va zodpovednos\u0165ou z\u00e1kazn\u00edka za n\u00e1vrh \u2013 ale na podporu tohto v\u00fdberu sa poskytuj\u00fa \u00fadaje o za\u0165a\u017een\u00ed lo\u017eiska z geometrie n\u00e1\u0161ho prevodov\u00e9ho prevodu.<\/div>\n

Zobrazi\u0165 \/ Vy\u017eiada\u0165<\/a><\/p>\n<\/div>\n<\/div>\n

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\"Dvojit\u00e1<\/div>\n
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Kompatibiln\u00e9 s koso\u00fahlym stykov\u00fdm lo\u017eiskom \/ presn\u00e1 geometria hriade\u013ea<\/div>\n
Dvojit\u00e1 z\u00e1vitovkov\u00e1 prevodovka \u2013 aplik\u00e1cia kritick\u00e1 pre lo\u017eisk\u00e1<\/div>\n
Pre k\u013abov\u00e9 pohony robotov, presn\u00e9 polohova\u010de a sledovacie syst\u00e9my, kde je usporiadanie lo\u017e\u00edsk z\u00e1vitovkov\u00e9ho hriade\u013ea navrhnut\u00e9 pre nosnos\u0165 aj minim\u00e1lne priehyb pri kombinovanom za\u0165a\u017een\u00ed, poskytuje duplexn\u00e1 z\u00e1vitovkov\u00e1 s\u00faprava \u010fal\u0161iu v\u00fdhodu: nastavite\u013en\u00e1 v\u00f4\u013ea umo\u017e\u0148uje samostatn\u00fa optimaliz\u00e1ciu predp\u00e4tia lo\u017eiska od v\u00f4le v z\u00e1bere ozuben\u00fdch kolies. V \u0161tandardn\u00fdch z\u00e1vitovkov\u00fdch s\u00faprav\u00e1ch sa zn\u00ed\u017een\u00edm v\u00f4le lo\u017eiska (predp\u00e4tie lo\u017e\u00edsk pre tuhos\u0165) men\u00ed zdanliv\u00e1 v\u00f4\u013ea, preto\u017ee priehyb lo\u017eiska prispieva k polohovej chybe. Duplexn\u00e1 z\u00e1vitovka odde\u013euje tieto dva parametre: usporiadanie lo\u017eiska je optimalizovan\u00e9 pre tuhos\u0165; v\u00f4\u013ea v z\u00e1bere ozuben\u00fdch kolies sa samostatne nastavuje na cie\u013eov\u00fa hodnotu. Geometria hriade\u013ea (d1, uhol n\u00e1behu, profil boku) potrebn\u00e1 na v\u00fdpo\u010det za\u0165a\u017eenia lo\u017eiska je uveden\u00e1 v dodacej dokument\u00e1cii pre ka\u017ed\u00fa duplexn\u00fa z\u00e1vitovkov\u00fa s\u00fapravu.<\/div>\n

Zobrazi\u0165 \/ Vy\u017eiada\u0165<\/a><\/p>\n<\/div>\n<\/div>\n

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\"Anal\u00fdza<\/div>\n
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Konzult\u00e1cie pri v\u00fdbere lo\u017e\u00edsk \/ Podpora pri aplik\u00e1cii<\/div>\n
Anal\u00fdza za\u0165a\u017eenia lo\u017eiska a kontrola \u0161pecifik\u00e1ci\u00ed<\/div>\n
Pre in\u017einierske t\u00edmy, ktor\u00e9 navrhuj\u00fa syst\u00e9my pohonu z\u00e1vitovkov\u00fdmi prevodmi, kde je v\u00fdber lo\u017eiska kritick\u00fdm kon\u0161truk\u010dn\u00fdm parametrom \u2013 robotick\u00e9 k\u013aby so \u0161pecifik\u00e1ciami priehybu, vysokocyklov\u00e9 automatiza\u010dn\u00e9 syst\u00e9my s cie\u013eov\u00fdmi \u017eivotnos\u0165ami lo\u017e\u00edsk a stavebn\u00e9 zariadenia, kde je porucha lo\u017eiska udalos\u0165ou kritickou z h\u013eadiska bezpe\u010dnosti \u2013 spolo\u010dnos\u0165 Korea Ever-Power poskytuje anal\u00fdzu za\u0165a\u017eenia lo\u017e\u00edsk ako s\u00fa\u010das\u0165 slu\u017eby aplika\u010dn\u00e9ho in\u017einierstva. Odo\u0161lite \u0161pecifik\u00e1ciu prevodov\u00e9ho s\u00fastavy, vstupn\u00fd v\u00fdkon, ot\u00e1\u010dky motora, konfigur\u00e1ciu mont\u00e1\u017ee, vonkaj\u0161ie za\u0165a\u017eenie (napnutie reme\u0148a, za\u0165a\u017eenie re\u0165aze, spojovacie sily) a cie\u013eov\u00fa \u017eivotnos\u0165 lo\u017eiska v hodin\u00e1ch. Spolo\u010dnos\u0165 Korea Ever-Power vypo\u010d\u00edta sily v lo\u017eisk\u00e1ch z\u00e1vitovkov\u00e9ho hriade\u013ea a hriade\u013ea kolesa, identifikuje po\u017eadovan\u00fd typ a usporiadanie lo\u017eiska a poskytne ekvivalentn\u00e9 dynamick\u00e9 za\u0165a\u017eenie P pre ka\u017ed\u00fa polohu lo\u017eiska, aby v\u00e1\u0161 t\u00edm mohol dokon\u010di\u0165 v\u00fdpo\u010det \u017eivotnosti L10 pod\u013ea vami zvolen\u00e9ho katal\u00f3gu lo\u017e\u00edsk. T\u00e1to slu\u017eba je poskytovan\u00e1 bezplatne pre objedn\u00e1vky zadan\u00e9 spolo\u010dnosti Korea Ever-Power a pre seri\u00f3zne ot\u00e1zky t\u00fdkaj\u00face sa kon\u0161truk\u010dn\u00e9ho in\u017einierstva.<\/div>\n

Zobrazi\u0165 \/ Vy\u017eiada\u0165<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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\u010casto kladen\u00e9 ot\u00e1zky o lo\u017eisk\u00e1ch<\/span><\/p>\n

V\u00fdber lo\u017eiska z\u00e1vitovkov\u00e9ho prevodu \u2013 ot\u00e1zky od stroj\u00e1rskych kon\u0161trukt\u00e9rov<\/h2>\n<\/div>\n
\nM\u00f4j z\u00e1vitovkov\u00fd hriade\u013e je poh\u00e1\u0148an\u00fd \u0161pir\u00e1lov\u00fdm ozuben\u00fdm kolesom \u2013 nie reme\u0148om. Men\u00ed to v\u00fdpo\u010det vonkaj\u0161ieho radi\u00e1lneho za\u0165a\u017eenia?+<\/span><\/summary>\n
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\u00c1no. Vstup \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa prid\u00e1va radi\u00e1lnu silu na z\u00e1vitovkov\u00fd hriade\u013e, ale tie\u017e prid\u00e1va axi\u00e1lnu silu. Tangenci\u00e1lna sila \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa Ft_hel p\u00f4sob\u00ed tangenci\u00e1lne na z\u00e1ber a prispieva k radi\u00e1lnemu za\u0165a\u017eeniu z\u00e1vitovkov\u00e9ho hriade\u013ea. Axi\u00e1lna sila \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa Fa_hel p\u00f4sob\u00ed axi\u00e1lne na z\u00e1vitovkov\u00fd hriade\u013e a prid\u00e1va alebo od\u010d\u00edtava axi\u00e1lnu silu Fa1 v z\u00e1bere z\u00e1vitovky v z\u00e1vislosti od uhla z\u00e1vitu \u0161pir\u00e1ly \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa. Pri rovnakom uhle z\u00e1vitu sa sily s\u010d\u00edtavaj\u00fa; pri opa\u010dnom uhle z\u00e1vitu sa od\u010d\u00edtavaj\u00fa. Pred v\u00fdberom axi\u00e1lnej \u00fanosnosti pevn\u00e9ho lo\u017eiska v\u017edy skontrolujte znamienko kombinovanej axi\u00e1lnej sily. Vstup \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa s rovnak\u00fdm uhlom z\u00e1vitu ako z\u00e1vit z\u00e1vitu m\u00f4\u017ee v\u00fdrazne zv\u00fd\u0161i\u0165 celkov\u00e9 axi\u00e1lne za\u0165a\u017eenie z\u00e1vitovkov\u00e9ho hriade\u013ea.<\/p>\n<\/div>\n<\/details>\n

\nM\u00f4\u017eem pou\u017ei\u0165 ku\u017eel\u00edkov\u00e9 lo\u017eisk\u00e1 namiesto gu\u013ekov\u00fdch lo\u017e\u00edsk s kosouhl\u00fdm stykom pre pevn\u00e9 lo\u017eisko z\u00e1vitovkov\u00e9ho hriade\u013ea?+<\/span><\/summary>\n
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\u00c1no, a pre vysokov\u00fdkonn\u00e9 z\u00e1vitovkov\u00e9 pohony (D3-D4, vysok\u00fd v\u00fdstupn\u00fd kr\u00fatiaci moment) sa ku\u017eel\u00edkov\u00e9 lo\u017eisk\u00e1 \u010dasto uprednost\u0148uj\u00fa pred gu\u013e\u00f4\u010dkov\u00fdmi lo\u017eiskami s kosouhl\u00fdm stykom pre pevn\u00fa polohu lo\u017eiska. Ku\u017eel\u00edkov\u00e9 lo\u017eisk\u00e1 maj\u00fa vy\u0161\u0161iu radi\u00e1lnu a axi\u00e1lnu \u00fanosnos\u0165 ako gu\u013e\u00f4\u010dkov\u00e9 lo\u017eisk\u00e1 s kosouhl\u00fdm stykom s rovnak\u00fdm priemerom otvoru a s\u00fa vhodnej\u0161ie do zne\u010disten\u00e9ho prostredia, preto\u017ee kontakt s val\u010dekom vytv\u00e1ra vy\u0161\u0161ie za\u0165a\u017eenie valiv\u00e9ho telesa pri kontamin\u00e1cii \u010dasticami ako kontakt s gu\u013e\u00f4\u010dkou. Ku\u017eel\u00edkov\u00e9 lo\u017eisko vy\u017eaduje nastavenie predp\u00e4tia alebo pracovnej v\u00f4le pri in\u0161tal\u00e1cii \u2013 ide o zlo\u017eitej\u0161\u00ed postup nastavenia ako pri gu\u013e\u00f4\u010dkov\u00fdch lo\u017eisk\u00e1ch s kosouhl\u00fdm stykom v usporiadan\u00ed chrbtom k sebe, ale poskytuje vynikaj\u00facu \u00fanosnos\u0165 a robustnos\u0165 pre n\u00e1ro\u010dn\u00e9 aplik\u00e1cie.<\/p>\n<\/div>\n<\/details>\n

\nM\u00e1m z\u00e1vitovkov\u00fd prevod, kde vstup je z klinov\u00e9ho reme\u0148a. Ako vypo\u010d\u00edtam nap\u00ednaciu silu reme\u0148a pre v\u00fdpo\u010det za\u0165a\u017eenia lo\u017eiska?+<\/span><\/summary>\n
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Efekt\u00edvne nap\u00e4tie klinov\u00e9ho reme\u0148a (sila vytv\u00e1raj\u00faca kr\u00fatiaci moment) sa rovn\u00e1 kr\u00fatiacemu momentu motora vydelen\u00e9mu polomerom remenice: F_efekt\u00edvne = T_motor \/ r_kladka. Celkov\u00e9 nap\u00e4tie reme\u0148a p\u00f4sobiace radi\u00e1lne na hriade\u013e je vektorov\u00fd s\u00fa\u010det nap\u00e4tia na pevnej strane T1 a nap\u00e4tia na uvo\u013enenej strane T2: F_reme\u0148 = T1 + T2. Pre prevod s klinov\u00fdm reme\u0148om je T1\/T2 = e^(mu_V x theta), kde mu_V je koeficient trenia klinov\u00e9ho reme\u0148a (~0,4-0,5) a theta je uhol op\u00e1sania. Konzervat\u00edvna aproxim\u00e1cia pre v\u00fdpo\u010det za\u0165a\u017eenia lo\u017eiska: F_reme\u0148 = 2,5 x F_efekt\u00edvne pre norm\u00e1lne napnut\u00fd pohon klinov\u00fdm reme\u0148om. T\u00e1to sila reme\u0148a p\u00f4sob\u00ed radi\u00e1lne v stredovej polohe reme\u0148a na hriadeli a prid\u00e1va sa k radi\u00e1lnej sile z\u00e1beru. Kombinovan\u00e1 radi\u00e1lna sila Fr_celkov\u00e1 pre v\u00fdpo\u010det lo\u017eiska je vektorov\u00fd s\u00fa\u010det F_reme\u0148a a Fr_z\u00e1beru v z\u00e1vislosti od uhla medzi nimi.<\/p>\n<\/div>\n<\/details>\n

\nAko dlho by mali vydr\u017ea\u0165 lo\u017eisk\u00e1 v spr\u00e1vne navrhnutom z\u00e1vitovkovom prevode?+<\/span><\/summary>\n
\n

Pri spr\u00e1vnom v\u00fdbere lo\u017eiska (gu\u013ekov\u00e9 lo\u017eisk\u00e1 s kosouhl\u00fdm stykom pre z\u00e1vitovkov\u00fd hriade\u013e, spr\u00e1vny v\u00fdpo\u010det kombinovan\u00e9ho za\u0165a\u017eenia, spr\u00e1vne usporiadanie mont\u00e1\u017ee) by cie\u013eov\u00e1 \u017eivotnos\u0165 lo\u017eiska L10 mala zodpoveda\u0165 alebo prekro\u010di\u0165 \u017eivotnos\u0165 ozuben\u00e9ho kolesa \u2013 zvy\u010dajne 15 000 \u2013 30 000 hod\u00edn pre priemyseln\u00e9 pohony. Ak je \u017eivotnos\u0165 lo\u017eiska v\u00fdrazne krat\u0161ia ako \u017eivotnos\u0165 ozuben\u00e9ho kolesa, \u0161pecifik\u00e1cia lo\u017eiska je nespr\u00e1vna alebo mont\u00e1\u017e je nespr\u00e1vna. V praxi s\u00fa poruchy lo\u017e\u00edsk v z\u00e1vitovkov\u00fdch prevodoch takmer v\u017edy sp\u00f4soben\u00e9 jednou z troch pr\u00ed\u010din: nespr\u00e1vny typ lo\u017eiska (DGBB, kde je potrebn\u00fd kosouhl\u00fd styk), nespr\u00e1vny v\u00fdpo\u010det za\u0165a\u017eenia (vonkaj\u0161ie za\u0165a\u017eenie nie je zahrnut\u00e9) alebo nespr\u00e1vna mont\u00e1\u017e (obe lo\u017eisk\u00e1 s\u00fa pevn\u00e9, \u010do vytv\u00e1ra tepeln\u00e9 obmedzenie). Spr\u00e1vne \u0161pecifikovan\u00e9 a namontovan\u00e9 lo\u017eisko v z\u00e1vitovkovom prevode by nemalo by\u0165 pl\u00e1novanou n\u00e1hradou po\u010das \u017eivotnosti ozuben\u00e9ho kolesa.<\/p>\n<\/div>\n<\/details>\n

\nAk\u00e9 je spr\u00e1vne predp\u00e4tie pre gu\u013ekov\u00e9 lo\u017eisk\u00e1 s kosouhl\u00fdm stykom namontovan\u00e9 chrbtom k sebe na z\u00e1vitovkovom hriadeli?+<\/span><\/summary>\n
\n

Ve\u013ekos\u0165 predp\u00e4tia z\u00e1vis\u00ed od ve\u013ekosti lo\u017eiska, podmienok za\u0165a\u017eenia a ot\u00e1\u010dok. V\u0161eobecn\u00e9 odpor\u00fa\u010danie: stredn\u00e9 predp\u00e4tie (typicky 1-3% so z\u00e1kladnou dynamickou \u00fanosnos\u0165ou C) pre priemyseln\u00e9 z\u00e1vitovkov\u00e9 prevody pri norm\u00e1lnych ot\u00e1\u010dkach (z\u00e1vitovkov\u00fd hriade\u013e 500 \u2013 1 500 ot.\/min). \u013dahk\u00e9 predp\u00e4tie pre vysokor\u00fdchlostn\u00e9 pohony (z\u00e1vitovkov\u00fd hriade\u013e nad 1 500 ot.\/min), aby sa zabr\u00e1nilo nadmern\u00e9mu vytv\u00e1raniu tepla z valiv\u00e9ho kontaktu lo\u017eiska pri predp\u00e4t\u00ed. Ve\u013ek\u00e9 predp\u00e4tie pre po\u017eiadavky na vysok\u00fa tuhos\u0165 (presn\u00e9 robotick\u00e9 spoje, polohovacie syst\u00e9my), kde je potrebn\u00e9 minimalizova\u0165 priehyb hriade\u013ea pri za\u0165a\u017een\u00ed. Predp\u00e4tie je mo\u017en\u00e9 aplikova\u0165 pomocou rozpern\u00fdch vlo\u017eiek lo\u017eiska medzi vn\u00fatorn\u00fdmi kr\u00fa\u017ekami, pomocou pru\u017en\u00fdch podlo\u017eiek alebo pomocou u\u0165ahovacieho momentu mont\u00e1\u017enej matice. Konkr\u00e9tne ozna\u010denie lo\u017eiska a ot\u00e1\u010dky hriade\u013ea n\u00e1jdete v tabu\u013eke predp\u00e4tia v\u00fdrobcu lo\u017e\u00edsk.<\/p>\n<\/div>\n<\/details>\n

\nM\u00f4j z\u00e1vitovkov\u00fd prevod vyd\u00e1va hrkotav\u00fd zvuk, ktor\u00fd sa men\u00ed s r\u00fdchlos\u0165ou hriade\u013ea, ale nie je na \u00farovni z\u00e1berovej frekvencie. Mohol by to by\u0165 probl\u00e9m s lo\u017eiskom?+<\/span><\/summary>\n
\n

\u00c1no, takmer ur\u010dite. Hluk lo\u017eiska v z\u00e1vitovkovom prevode m\u00e1 odli\u0161n\u00fd charakter od hluku z\u00e1beru ozuben\u00e9ho kolesa: hluk lo\u017eiska zvy\u010dajne produkuje \u0161irokop\u00e1smov\u00e9 dunenie alebo sy\u010danie, ktor\u00e9 sa zvy\u0161uje s r\u00fdchlos\u0165ou, a nie t\u00f3nov\u00fd \u0161um na frekvencii z\u00e1beru a jej harmonick\u00fdch, ktor\u00e9 produkuj\u00fa probl\u00e9my so z\u00e1berom ozuben\u00e9ho kolesa. Na rozl\u00ed\u0161enie: vypo\u010d\u00edtajte frekvenciu z\u00e1beru (ot\u00e1\u010dky z\u00e1vitovkov\u00e9ho hriade\u013ea x z1 \/ 60 Hz). Ak dominantn\u00e1 frekvencia \u0161umu kop\u00edruje r\u00fdchlos\u0165 hriade\u013ea, ale NIE JE na frekvencii z\u00e1beru alebo jej harmonick\u00fdch, hluk poch\u00e1dza sk\u00f4r z kontaktu valiv\u00fdch telies v lo\u017eisk\u00e1ch ne\u017e zo z\u00e1beru ozuben\u00e9ho kolesa. Konkr\u00e9tne frekvencie defektov lo\u017eiska (vn\u00fatorn\u00fd kr\u00fa\u017eok BPFI, vonkaj\u0161\u00ed kr\u00fa\u017eok BPFO, valiv\u00fd prvok BSF) je mo\u017en\u00e9 vypo\u010d\u00edta\u0165 z geometrie lo\u017eiska, ak je k dispoz\u00edcii, \u010do poskytuje e\u0161te presnej\u0161iu identifik\u00e1ciu.<\/p>\n<\/div>\n<\/details>\n

\nAk\u00e9 usporiadanie lo\u017e\u00edsk by som mal pou\u017ei\u0165 pre vertik\u00e1lny z\u00e1vitovkov\u00fd hriade\u013e (motor hore, v\u00fdstupn\u00fd hriade\u013e dole)?+<\/span><\/summary>\n
\n

Vertik\u00e1lna orient\u00e1cia z\u00e1vitovkov\u00e9ho hriade\u013ea men\u00ed smer tia\u017ee vzh\u013eadom na os hriade\u013ea. Pri vertik\u00e1lnej orient\u00e1cii p\u00f4sob\u00ed tia\u017ee z\u00e1vitovkov\u00e9ho hriade\u013ea smerom nadol pozd\u013a\u017e osi hriade\u013ea \u2013 \u010d\u00edm sa zvy\u0161uje axi\u00e1lne za\u0165a\u017eenie lo\u017eiska na spodnom lo\u017eisku a potenci\u00e1lne sa zni\u017euje za\u0165a\u017eenie horn\u00e9ho lo\u017eiska. Pre vertik\u00e1lne hriadele: spodn\u00e9 lo\u017eisko mus\u00ed by\u0165 pevn\u00e9 (axi\u00e1lne) lo\u017eisko, schopn\u00e9 nies\u0165 axi\u00e1lnu silu Fa1 v z\u00e1bere z\u00e1vitovky aj zlo\u017eku tia\u017ee hriade\u013ea p\u00f4sobiacu nadol. Horn\u00e9 lo\u017eisko je pl\u00e1vaj\u00face lo\u017eisko. Overte, \u010di je tia\u017eev\u00e1 zlo\u017eka tia\u017ee hriade\u013ea zahrnut\u00e1 do v\u00fdpo\u010dtu axi\u00e1lneho za\u0165a\u017eenia pre spodn\u00e9 pevn\u00e9 lo\u017eisko. Pre z\u00e1vitovkov\u00fd hriade\u013e v module M5 m\u00f4\u017ee by\u0165 tia\u017eev\u00e1 zlo\u017eka tia\u017ee hriade\u013ea 3 \u2013 8 kg \u2013 \u010do vytv\u00e1ra axi\u00e1lne za\u0165a\u017eenie 30 \u2013 80 N z tia\u017ee, \u010do je mal\u00e9 v porovnan\u00ed s typick\u00fdmi axi\u00e1lnymi za\u0165a\u017eeniami nieko\u013ek\u00fdch kN, ale malo by sa to potvrdi\u0165.<\/p>\n<\/div>\n<\/details>\n

\nAko m\u00e1m \u0161pecifikova\u0165 osadenie hriade\u013ea a otvor v telese pre spr\u00e1vnu mont\u00e1\u017e lo\u017eiska s kosouhl\u00fdm stykom?+<\/span><\/summary>\n
\n

Gu\u013ekov\u00e9 lo\u017eisk\u00e1 s kosouhl\u00fdm stykom montovan\u00e9 chrbtom k sebe vy\u017eaduj\u00fa presn\u00e9 rozmery osadenia hriade\u013ea a podmienky otvoru telesa pre spr\u00e1vne ulo\u017eenie. Kritick\u00e9 parametre: v\u00fd\u0161ka osadenia hriade\u013ea by mala by\u0165 medzi 50% a 80% v\u00fd\u0161ky vn\u00fatorn\u00e9ho kr\u00fa\u017eku lo\u017eiska, aby sa zabezpe\u010dila dostato\u010dn\u00e1 kontaktn\u00e1 plocha bez interferencie s valiv\u00fdmi telesami. Priemer osadenia hriade\u013ea nesmie presiahnu\u0165 priemer vonkaj\u0161ieho okraja vn\u00fatorn\u00e9ho kr\u00fa\u017eku. Tolerancia otvoru telesa by mala by\u0165 H7 pre rotuj\u00face za\u0165a\u017eenie vn\u00fatorn\u00e9ho kr\u00fa\u017eku hriade\u013ea (\u010do plat\u00ed pre z\u00e1vitovkov\u00fd hriade\u013e), pri\u010dom by sa zabezpe\u010dila mierna interferencia, aby sa zabr\u00e1nilo ot\u00e1\u010daniu vn\u00fatorn\u00e9ho kr\u00fa\u017eku na hriadeli pod za\u0165a\u017een\u00edm. Vonkaj\u0161\u00ed kr\u00fa\u017eok v telese: tolerancia K7 pre pevn\u00e9 lo\u017eisk\u00e1, H7 alebo J7 pre pl\u00e1vaj\u00face lo\u017eisk\u00e1. N\u00e1pl\u0148 plastick\u00e9ho maziva pre lo\u017eisk\u00e1 z\u00e1vitovkov\u00e9ho hriade\u013ea: 1\/3 a\u017e 1\/2 vo\u013en\u00e9ho priestoru v dutine telesa lo\u017eiska, viac ako toto mno\u017estvo sp\u00f4sob\u00ed prehrievanie v d\u00f4sledku visk\u00f3zneho v\u00edrenia.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

\n
\n

Z\u00edskajte \u00fadaje o za\u0165a\u017een\u00ed lo\u017e\u00edsk pre va\u0161u aplik\u00e1ciu z\u00e1vitovkov\u00e9ho prevodu<\/h2>\n

Zadajte vstupn\u00fd v\u00fdkon, ot\u00e1\u010dky motora, prevodov\u00fd pomer, mont\u00e1\u017enu konfigur\u00e1ciu a vonkaj\u0161ie za\u0165a\u017eenie. Spolo\u010dnos\u0165 Korea Ever-Power poskytuje \u00fadaje o za\u0165a\u017een\u00ed lo\u017eiska (axi\u00e1lna axi\u00e1lna sila z\u00e1vitovkov\u00e9ho hriade\u013ea, radi\u00e1lne za\u0165a\u017eenie v oboch poloh\u00e1ch lo\u017eiska) na podporu v\u00fdpo\u010dtu v\u00fdberu lo\u017eiska.<\/p>\n

Vy\u017eiadanie \u00fadajov o za\u0165a\u017een\u00ed lo\u017eiska<\/a>
\nPrehliadajte presn\u00e9 produkty<\/a><\/div>\n<\/div>\n<\/div>\n

Redaktor: 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\/sk\/wp-json\/wp\/v2\/posts\/1939","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/comments?post=1939"}],"version-history":[{"count":2,"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/posts\/1939\/revisions"}],"predecessor-version":[{"id":1941,"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/posts\/1939\/revisions\/1941"}],"wp:attachment":[{"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/media?parent=1939"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/categories?post=1939"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wormwheelgear.top\/sk\/wp-json\/wp\/v2\/tags?post=1939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}