{"id":1138,"date":"2026-04-24T02:11:41","date_gmt":"2026-04-24T02:11:41","guid":{"rendered":"https:\/\/worm-and-worm-wheel.com\/?post_type=product&p=1138"},"modified":"2026-04-24T02:11:42","modified_gmt":"2026-04-24T02:11:42","slug":"cylindrical-worm-wheel-sets-line-contact-worm-gearing","status":"publish","type":"product","link":"https:\/\/worm-and-worm-wheel.com\/cs\/produkt\/cylindrical-worm-wheel-sets-line-contact-worm-gearing\/","title":{"rendered":"V\u00e1lcov\u00e9 sady \u0161nekov\u00fdch kol | \u0160nekov\u00e9 p\u0159evody s liniov\u00fdm kontaktem"},"content":{"rendered":"
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V\u00e1lcov\u00e9 \u0161nekov\u00e9 kolo \u2013 p\u0159ehled produkt\u016f<\/h2>\n

V\u00e1lcov\u00fd \u0161nekov\u00e9 kolo<\/strong> is a wheel whose teeth have been milled by a cutter ground to the same basic geometry as the mating shaft. This production method is what distinguishes the two major families inside the cylindrical worm family: the “worm and helical gear” pair, where a small-tooth helical pinion meshes at a crossed-shaft angle and contacts the wheel at a single point; and the “worm and worm wheel” pair, where the teeth are cut with the same mill as the shaft thread, producing line contact along the engaged tooth flank. Line contact is why the second arrangement carries significantly higher tooth force before surface fatigue becomes the limit.<\/p>\n

\"Sady<\/p>\n

Spole\u010dnost Ever-Power dod\u00e1v\u00e1 ob\u011b uspo\u0159\u00e1d\u00e1n\u00ed, ale p\u0159ibli\u017en\u011b 90 korejsk\u00fdch pr\u016fmyslov\u00fdch objedn\u00e1vek typu % specifikuje skute\u010dn\u00fd \u0161nekov\u00fd a \u0161nekov\u00fd kolo<\/a> p\u00e1r, proto\u017ee dodate\u010dn\u00e1 nosnost obvykle p\u0159eva\u017euje nad m\u00edrn\u00fdm rozd\u00edlem v cen\u011b. Produkt se dod\u00e1v\u00e1 jako sp\u00e1rovan\u00e1 sada \u2013 h\u0159\u00eddel a kolo, vy\u0159ezan\u00e9 ze stejn\u00e9ho n\u00e1stroje, tak\u017ee profily zub\u016f jsou v dokonal\u00e9m konjugovan\u00e9m kontaktu od prvn\u00ed ot\u00e1\u010dky. Mezi typick\u00e9 aplikace pat\u0159\u00ed pohony dopravn\u00edk\u016f, index\u00e1tory balic\u00edch linek, p\u0159evodovky se sol\u00e1rn\u00edm sledova\u010dem a v\u00fdtahy parkovac\u00edch syst\u00e9m\u016f.<\/p>\n<\/section>\n

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Technick\u00e9 specifikace<\/h2>\n

N\u00ed\u017ee uveden\u00e1 specifikace zahrnuje geometrii z katalogu. Modul, osov\u00e1 vzd\u00e1lenost a po\u010det zub\u016f jsou parametry, kter\u00e9 se nej\u010dast\u011bji upravuj\u00ed podle z\u00e1kladn\u00edho katalogu \u2013 za\u0161lete oraz\u00edtkovan\u00fd v\u00fdkres nebo spojovac\u00ed kolo k m\u011b\u0159en\u00ed a technick\u00e9 odd\u011blen\u00ed v\u00e1m do dvou pracovn\u00edch dn\u016f vypracuje cenovou nab\u00eddku.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parametr<\/th>\nSpecifikace<\/th>\n<\/tr>\n<\/thead>\n
Typ uspo\u0159\u00e1d\u00e1n\u00ed<\/strong><\/td>\nV\u00e1lcov\u00e9 \u0161nekov\u00e9 kolo (s p\u0159\u00edm\u00fdm kontaktem) nebo \u0161nekov\u00e9 a \u0161ikm\u00e9 ozuben\u00e9 kolo (s bodov\u00fdm kontaktem)<\/td>\n<\/tr>\n
Rozsah modul\u016f<\/strong><\/td>\nM1 \u2013 M12 (typick\u00fd rozsah)<\/td>\n<\/tr>\n
Materi\u00e1l kola<\/strong><\/td>\nHlin\u00edkovo-\u017eelezn\u00fd bronz (prim\u00e1rn\u00ed) \/ c\u00ednov\u00fd bronz \/ tv\u00e1rn\u00e1 litina (pouze n\u00edzkorychlostn\u00ed)<\/td>\n<\/tr>\n
Materi\u00e1l \u010derv\u016f<\/strong><\/td>\nOcel C45 \/ kalen\u00e1 slitina 20CrMnTi \/ nerezov\u00e1 ocel<\/td>\n<\/tr>\n
Obvodov\u00e1 rychlost \u0161neku<\/strong><\/td>\nA\u017e 10 m\/s (pod touto hodnotou posta\u010duje standardn\u00ed olejov\u00e1 l\u00e1ze\u0148)<\/td>\n<\/tr>\n
P\u0159esn\u00fd stupe\u0148<\/strong><\/td>\nDIN 6 \/ DIN 7 \/ DIN 8 \/ DIN 9<\/td>\n<\/tr>\n
O\u0161et\u0159en\u00ed zub\u016f<\/strong><\/td>\nOdvalovan\u00e9, kalen\u00e9, fr\u00e9zovan\u00e9 nebo brou\u0161en\u00e9<\/td>\n<\/tr>\n
Kontaktn\u00ed geometrie<\/strong><\/td>\nLiniov\u00fd kontakt na kotou\u010d\u00edch s \u0161nekov\u00fdm fr\u00e9zov\u00e1n\u00edm (preferov\u00e1no)<\/td>\n<\/tr>\n
Maz\u00e1n\u00ed<\/strong><\/td>\nOlejov\u00e1 l\u00e1ze\u0148 a\u017e 10 m\/s; rozst\u0159ikovac\u00ed krou\u017eek nebo nucen\u00e9 pod\u00e1v\u00e1n\u00ed naho\u0159e<\/td>\n<\/tr>\n
Typick\u00fd rozsah pom\u011br\u016f<\/strong><\/td>\n10:1 \u2013 100:1 v jednom stupni<\/td>\n<\/tr>\n
Dodac\u00ed lh\u016fta<\/strong><\/td>\n20 dn\u00ed pro vzorek; 25 dn\u00ed pro hromadn\u00e9 dod\u00e1vky<\/td>\n<\/tr>\n
Shoda se standardy<\/strong><\/td>\nISO 1122, DIN 3974, JIS B 1723 (typick\u00fd rozsah)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Values noted “typical range” reflect the standard catalogue envelope; non-standard modules, speeds or ratios are supplied to customer drawing after a short engineering review.<\/p>\n<\/section>\n

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Jak v\u00e1lcov\u00fd \u0161nekov\u00fd pohon p\u0159en\u00e1\u0161\u00ed v\u00fdkon<\/h2>\n

V\u00e1lcov\u00e9 uspo\u0159\u00e1d\u00e1n\u00ed funguje, proto\u017ee z\u00e1vit \u0161neku a zuby kola byly vy\u0159\u00edznuty ze stejn\u00e9 z\u00e1kladn\u00ed geometrie. Kdy\u017e se h\u0159\u00eddel ot\u00e1\u010d\u00ed, jej\u00ed bok z\u00e1vitu klou\u017ee po boku zubu kola pod\u00e9l kontaktn\u00ed linie, kter\u00e1 se jednou za ot\u00e1\u010dku pohybuje po \u010deln\u00ed plo\u0161e zubu. Neust\u00e1l\u00e9 kluz\u00e1n\u00ed je d\u016fvodem, pro\u010d tyto pohony pot\u0159ebuj\u00ed hust\u0161\u00ed olej s vy\u0161\u0161\u00edm tlakem ne\u017e ozuben\u00e9 pohony a pro\u010d je jejich \u00fa\u010dinnost ni\u017e\u0161\u00ed \u2013 energie ztr\u00e1cen\u00e1 kluzn\u00fdm t\u0159en\u00edm se projevuje jako teplo v olejov\u00e9 van\u011b.<\/p>\n

O kvalit\u011b z\u00e1b\u011bru rozhoduj\u00ed dv\u011b mo\u017enosti v\u00fdroby. Prvn\u00ed je, zda je kolo fr\u00e9zov\u00e1no specializovanou fr\u00e9zou (preferovan\u00e1 metoda, kter\u00e1 zaji\u0161\u0165uje p\u0159\u00edm\u00fd kontakt), nebo standardn\u00ed spir\u00e1lovou odvalovac\u00ed fr\u00e9zou (levn\u011bj\u0161\u00ed, ale vytv\u00e1\u0159ej\u00edc\u00ed pouze bodov\u00fd kontakt). Druhou je, zda je z\u00e1vit h\u0159\u00eddele po tepeln\u00e9m zpracov\u00e1n\u00ed brou\u0161en, aby se odstranila deformace \u2013 krok, kter\u00fd se st\u00e1v\u00e1 povinn\u00fdm, jakmile specifikace vy\u017eaduje normu DIN 7 nebo ni\u017e\u0161\u00ed. U vysokorychlostn\u00edch pohon\u016f, kde obvodov\u00e1 rychlost h\u0159\u00eddele p\u0159es\u00e1hne 10 m\/s, za\u010d\u00edn\u00e1 maz\u00e1n\u00ed olejovou l\u00e1zn\u00ed selh\u00e1vat, proto\u017ee z\u00e1vit nem\u016f\u017ee nas\u00e1t dostatek oleje z j\u00edmky; v tomto bod\u011b se kolo pohybuje nad h\u0159\u00eddel\u00ed (tzv. uspo\u0159\u00e1d\u00e1n\u00ed shora) a je p\u0159id\u00e1n rozst\u0159ikovac\u00ed krou\u017eek, kter\u00fd p\u0159iv\u00e1d\u00ed olej k lo\u017eisk\u016fm. Tato jedin\u00e1 zm\u011bna p\u0159inese dal\u0161\u00edch 3\u20135 m\/s vyu\u017eiteln\u00e9 obvodov\u00e9 rychlosti.<\/p>\n

\"Princip<\/p>\n<\/section>\n

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Bronzov\u00e9 jakosti a litina \u2013 Matice materi\u00e1l\u016f kol<\/h2>\n

Volba materi\u00e1lu na stran\u011b kola ovliv\u0148uje t\u00e9m\u011b\u0159 v\u0161echny dlouhodob\u00e9 vlastnosti pohonu: m\u00edru opot\u0159eben\u00ed, \u00fa\u010dinnost, teplotn\u00ed stabilitu a jednotkovou cenu. N\u00ed\u017ee uveden\u00e1 tabulka shrnuje t\u0159i jakosti, kter\u00e9 m\u00e1me na sklad\u011b, s uveden\u00edm v\u00fdhod pro ka\u017edou z nich.<\/p>\n

\n\n\n\n\n\n\n\n
Materi\u00e1l kola<\/th>\nProti od\u00edr\u00e1n\u00ed<\/th>\nPevnost<\/th>\nN\u00e1klady<\/th>\nNejlep\u0161\u00ed st\u0159ih<\/th>\n<\/tr>\n<\/thead>\n
C\u00ednov\u00fd bronz (CuSn10)<\/td>\nVynikaj\u00edc\u00ed<\/td>\nM\u00edrn\u00fd<\/td>\nVysok\u00fd<\/td>\nPohony pro nep\u0159etr\u017eit\u00fd provoz, aplikace citliv\u00e9 na teplo<\/td>\n<\/tr>\n
Hlin\u00edkovo-\u017eelezn\u00fd bronz (CuAl10Fe3)<\/td>\nDobr\u00fd<\/td>\nVysok\u00fd<\/td>\nM\u00edrn\u00fd<\/td>\nPohony odoln\u00e9 n\u00e1raz\u016fm, v\u011bt\u0161\u00ed moduly<\/td>\n<\/tr>\n
Tv\u00e1rn\u00e1 litina (s \u00fapravou proti st\u00e1rnut\u00ed)<\/td>\nChud\u00fd<\/td>\nM\u00edrn\u00fd<\/td>\nN\u00edzk\u00fd<\/td>\nPouze pomal\u00e9, nekritick\u00e9 disky<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Praktick\u00e9 pravidlo: c\u00ednov\u00fd bronz pro pohony, kter\u00e9 b\u011b\u017e\u00ed osm a v\u00edce hodin denn\u011b a netoleruj\u00ed zad\u0159en\u00ed; hlin\u00edkovo-\u017eelezn\u00fd bronz pro sporadick\u00e9, ale vysok\u00e9 zat\u00ed\u017een\u00ed; litina pouze tehdy, kdy\u017e se pohon ot\u00e1\u010d\u00ed m\u00e9n\u011b ne\u017e n\u011bkolikr\u00e1t denn\u011b a rozpo\u010det je omezen\u00fd. St\u00e1rnut\u00ed je u litinov\u00fdch kol povinn\u00e9, proto\u017ee odstra\u0148uje vnit\u0159n\u00ed pnut\u00ed v lit\u00ed, kter\u00e9 by jinak kolo b\u011bhem obr\u00e1b\u011bn\u00ed deformovalo.<\/p>\n

\"V\u00e1lcov\u00e1<\/p>\n<\/section>\n

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V\u00fdkonnostn\u00ed \u00fadaje: \u00da\u010dinnost, kontaktn\u00ed vzor a v\u016fle<\/h2>\n

N\u00ed\u017ee uveden\u00e9 hodnoty poch\u00e1zej\u00ed z na\u0161\u00ed laborato\u0159e kontroly kvality, m\u011b\u0159en\u00e9 na sad\u011b DIN 7 M5 s kolem z hlin\u00edkov\u00e9ho a \u017eelezn\u00e9ho bronzu a brou\u0161en\u00fdm vstupn\u00edm h\u0159\u00eddelem 20CrMnTi p\u0159i vstupn\u00edch ot\u00e1\u010dk\u00e1ch 1 500 ot\/min, mazan\u00e9m v olejov\u00e9 l\u00e1zni p\u0159evodov\u00fdm olejem ISO VG 460. M\u011bly by b\u00fdt ch\u00e1p\u00e1ny sp\u00ed\u0161e jako typick\u00fd rozsah ne\u017e jako garantovan\u00e1 hodnota pro ka\u017edou \u0161ar\u017ei.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
Parametr<\/th>\nTypick\u00fd rozsah<\/th>\nPozn\u00e1mky<\/th>\n<\/tr>\n<\/thead>\n
\u00da\u010dinnost pohonu p\u0159i 20:1<\/td>\n82 \u2013 88 %<\/td>\nMlet\u00fd \u010derv, bronzov\u00e9 kolo, olejov\u00e1 l\u00e1ze\u0148<\/td>\n<\/tr>\n
\u00da\u010dinnost pohonu p\u0159i 60:1<\/td>\n65 \u2013 72 %<\/td>\nStejn\u00e1 konfigurace, vy\u0161\u0161\u00ed p\u0159evodov\u00fd pom\u011br<\/td>\n<\/tr>\n
Pokryt\u00ed kontaktn\u00edho vzoru<\/td>\n\u2265 60 zub\u016f %<\/td>\nPo 4 hodin\u00e1ch z\u00e1b\u011bhu p\u0159i zat\u00ed\u017een\u00ed 50 %<\/td>\n<\/tr>\n
V\u016fle zub\u016f (DIN 7)<\/td>\n60 \u2013 110 \u00b5m<\/td>\nNastaveno podlo\u017ekou s rozte\u010d\u00ed mezi st\u0159edy<\/td>\n<\/tr>\n
Zv\u00fd\u0161en\u00ed teploty olejov\u00e9 vany<\/td>\n30\u201345 \u00b0C nad okoln\u00ed teplotou<\/td>\nNep\u0159etr\u017eit\u00fd provoz, bez extern\u00edho chlazen\u00ed<\/td>\n<\/tr>\n
Hluk p\u0159i 1 500 ot.\/min<\/td>\n58 \u2013 64 dB ve vzd\u00e1lenosti 1 m<\/td>\nZku\u0161ebn\u00ed komora bez isopropylalkoholu<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Rozd\u00edl v \u00fa\u010dinnosti mezi 20:1 a 60:1 je nejd\u016fle\u017eit\u011bj\u0161\u00edm konstruk\u010dn\u00edm ponau\u010den\u00edm u t\u011bchto pohon\u016f: ka\u017ed\u00fd bod sn\u00ed\u017een\u00ed nad 40:1 stoj\u00ed dva a\u017e t\u0159i procentn\u00ed body \u00fa\u010dinnosti. Pokud n\u00e1sledn\u00fd stroj pot\u0159ebuje v\u00edce ne\u017e 40:1 a z\u00e1rove\u0148 vysokou \u00fa\u010dinnost, je kombinace jednostup\u0148ov\u00e9ho vstupu se spir\u00e1lov\u00fdm nebo \u010deln\u00edm sekund\u00e1rn\u00edm stupn\u011bm t\u00e9m\u011b\u0159 v\u017edy levn\u011bj\u0161\u00ed ne\u017e pou\u017eit\u00ed samotn\u00e9ho prim\u00e1rn\u00edho stupn\u011b.<\/p>\n<\/section>\n

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Pr\u016fvodce v\u00fdb\u011brem v\u00e1lcov\u00fdch \u0161nekov\u00fdch kol<\/h2>\n

\u0160est vstup\u016f rozhoduje o v\u011bt\u0161in\u011b dimenzov\u00e1n\u00ed nov\u00e9ho v\u00e1lcov\u00e9ho \u0161nekov\u00e9ho pohonu. Spr\u00e1vn\u00e9 zad\u00e1n\u00ed t\u011bchto vstup\u016f ji\u017e na prvn\u00edm v\u00fdkresu u\u0161et\u0159\u00ed t\u00fddny dohadov\u00e1n\u00ed b\u011bhem ov\u011b\u0159ov\u00e1n\u00ed prototypu.<\/p>\n