{"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\/sk\/produkt\/cylindrical-worm-wheel-sets-line-contact-worm-gearing\/","title":{"rendered":"Valcov\u00e9 z\u00e1vitovkov\u00e9 s\u00fapravy | Z\u00e1vitovkov\u00e9 prevody s line\u00e1rnym kontaktom"},"content":{"rendered":"
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Valcov\u00e9 z\u00e1vitovkov\u00e9 koleso \u2013 Preh\u013ead produktu<\/h2>\n

Valcov\u00fd z\u00e1vitovkov\u00e9 koleso<\/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

Spolo\u010dnos\u0165 Ever-Power dod\u00e1va obe rie\u0161enia, ale pribli\u017ene 90 k\u00f3rejsk\u00fdch priemyseln\u00fdch objedn\u00e1vok typu % \u0161pecifikuje skuto\u010dn\u00fd z\u00e1vitovkov\u00e9 koleso<\/a> p\u00e1r, preto\u017ee dodato\u010dn\u00e1 nosnos\u0165 zvy\u010dajne preva\u017euje nad miernym rozdielom v cene. Produkt sa dod\u00e1va ako sp\u00e1rovan\u00e1 sada \u2013 hriade\u013e plus koleso, vyrezan\u00e9 z rovnak\u00e9ho n\u00e1strojov\u00e9ho nastavenia, tak\u017ee profily zubov s\u00fa v dokonalom konjugovanom kontakte od prvej ot\u00e1\u010dky. Medzi typick\u00e9 aplik\u00e1cie patria pohony dopravn\u00edkov, index\u00e1tory baliacich liniek, prevodovky so sol\u00e1rnym sledovan\u00edm a v\u00fd\u0165ahy parkovac\u00edch syst\u00e9mov.<\/p>\n<\/section>\n

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Technick\u00e9 \u0161pecifik\u00e1cie<\/h2>\n

Ni\u017e\u0161ie uveden\u00e1 \u0161pecifik\u00e1cia pokr\u00fdva geometriu z katal\u00f3gu. Modul, osov\u00e1 vzdialenos\u0165 a po\u010det zubov s\u00fa parametre, ktor\u00e9 sa naj\u010dastej\u0161ie upravuj\u00fa zo z\u00e1kladn\u00e9ho katal\u00f3gu \u2013 po\u0161lite ope\u010diatkovan\u00fd v\u00fdkres alebo zodpovedaj\u00face koleso na meranie a technick\u00e1 kancel\u00e1ria v\u00e1m do dvoch pracovn\u00fdch dn\u00ed vypracuje cenov\u00fa ponuku.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\n\u0160pecifik\u00e1cia<\/th>\n<\/tr>\n<\/thead>\n
Typ usporiadania<\/strong><\/td>\nValcov\u00e9 z\u00e1vitovkov\u00e9 koleso (s priamym kontaktom) alebo z\u00e1vitovkov\u00e9 ozuben\u00e9 koleso (s bodov\u00fdm kontaktom)<\/td>\n<\/tr>\n
Rozsah modulov<\/strong><\/td>\nM1 \u2013 M12 (typick\u00fd rozsah)<\/td>\n<\/tr>\n
Materi\u00e1l kolesa<\/strong><\/td>\nHlin\u00edkovo-\u017eelezn\u00fd bronz (prim\u00e1rny) \/ c\u00ednov\u00fd bronz \/ tv\u00e1rna liatina (iba n\u00edzkor\u00fdchlostn\u00e1)<\/td>\n<\/tr>\n
Materi\u00e1l \u010derva<\/strong><\/td>\nOce\u013e C45 \/ cementovan\u00e1 zliatina 20CrMnTi \/ nehrdzavej\u00faca oce\u013e<\/td>\n<\/tr>\n
Obvodov\u00e1 r\u00fdchlos\u0165 \u010derva<\/strong><\/td>\nDo 10 m\/s (pod touto r\u00fdchlos\u0165ou posta\u010duje \u0161tandardn\u00fd olejov\u00fd k\u00fape\u013e)<\/td>\n<\/tr>\n
Presn\u00fd stupe\u0148<\/strong><\/td>\nDIN 6 \/ DIN 7 \/ DIN 8 \/ DIN 9<\/td>\n<\/tr>\n
O\u0161etrenie zubov<\/strong><\/td>\nOdva\u013eovan\u00e9, kalen\u00e9, fr\u00e9zovan\u00e9 alebo br\u00fasen\u00e9<\/td>\n<\/tr>\n
Kontaktn\u00e1 geometria<\/strong><\/td>\n\u010ciarov\u00fd kontakt na kot\u00fa\u010doch s fr\u00e9zovan\u00fdm z\u00e1vitovkov\u00fdm fr\u00e9zovan\u00edm (preferovan\u00e9)<\/td>\n<\/tr>\n
Mazanie<\/strong><\/td>\nOlejov\u00fd k\u00fape\u013e do 10 m\/s; rozstrekovac\u00ed kr\u00fa\u017eok alebo n\u00faten\u00e9 pod\u00e1vanie nad<\/td>\n<\/tr>\n
Typick\u00fd rozsah pomeru<\/strong><\/td>\n10:1 \u2013 100:1 v jednom stupni<\/td>\n<\/tr>\n
Dodacia lehota<\/strong><\/td>\n20 dn\u00ed pre vzorku; 25 dn\u00ed pre hromadn\u00e9 balenie<\/td>\n<\/tr>\n
S\u00falad so \u0161tandardmi<\/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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Ako valcov\u00fd z\u00e1vitovkov\u00fd pohon pren\u00e1\u0161a energiu<\/h2>\n

Valcov\u00e9 usporiadanie funguje preto, lebo z\u00e1vit z\u00e1vitu a zuby kolesa boli vyrezan\u00e9 z rovnakej z\u00e1kladnej geometrie. Ke\u010f sa hriade\u013e ot\u00e1\u010da, jeho bok z\u00e1vitu sa k\u013a\u017ee po boku zuba kolesa pozd\u013a\u017e kontaktnej \u010diary, ktor\u00e1 sa pres\u00fava cez plochu zuba raz za ot\u00e1\u010dku. Neust\u00e1le k\u013azanie je d\u00f4vodom, pre\u010do tieto pohony potrebuj\u00fa hustej\u0161\u00ed olej s vy\u0161\u0161\u00edm tlakom ako ozuben\u00e9 pohony a pre\u010do je \u00fa\u010dinnos\u0165 ni\u017e\u0161ia \u2013 energia straten\u00e1 klzn\u00fdm tren\u00edm sa prejavuje ako teplo v olejovej vani.<\/p>\n

O kvalite z\u00e1beru rozhoduj\u00fa dve mo\u017enosti v\u00fdroby. Prvou je, \u010di sa koleso fr\u00e9zuje skuto\u010dne \u0161pecializovanou fr\u00e9zou (preferovan\u00e1 met\u00f3da, ktor\u00e1 zabezpe\u010duje priamy kontakt) alebo \u0161tandardnou \u0161pir\u00e1lovou odva\u013eovacou fr\u00e9zou (lacnej\u0161ia, ale vytv\u00e1ra iba bodov\u00fd kontakt). Druhou je, \u010di sa z\u00e1vit hriade\u013ea po tepelnom spracovan\u00ed br\u00fasi, aby sa odstr\u00e1nila deform\u00e1cia \u2013 krok, ktor\u00fd sa st\u00e1va povinn\u00fdm, ke\u010f \u0161pecifik\u00e1cia vy\u017eaduje normu DIN 7 alebo pr\u00edsnej\u0161iu. Pri vysokor\u00fdchlostn\u00fdch pohonoch, kde obvodov\u00e1 r\u00fdchlos\u0165 hriade\u013ea presiahne 10 m\/s, mazanie olejov\u00fdm k\u00fape\u013eom za\u010d\u00edna zlyh\u00e1va\u0165, preto\u017ee z\u00e1vit nem\u00f4\u017ee nasa\u0165 dostatok oleja z olejovej vane; v tomto bode sa koleso pohybuje nad hriade\u013eom (tzv. usporiadanie nad hlavou) a na dod\u00e1vanie oleja do lo\u017e\u00edsk sa prid\u00e1 rozstrekovac\u00ed kr\u00fa\u017eok. T\u00e1to jedin\u00e1 zmena prinesie dodato\u010dn\u00e9 3 \u2013 5 m\/s vyu\u017eite\u013enej obvodovej r\u00fdchlosti.<\/p>\n

\"princ\u00edp<\/p>\n<\/section>\n

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Bronzov\u00e9 triedy a liatina \u2013 Matica materi\u00e1lov kolies<\/h2>\n

V\u00fdber materi\u00e1lu na strane kolesa ovplyv\u0148uje takmer ka\u017ed\u00fa dlhodob\u00fa charakteristiku pohonu: mieru opotrebenia, \u00fa\u010dinnos\u0165, teplotn\u00fa stabilitu a jednotkov\u00fa cenu. V tabu\u013eke ni\u017e\u0161ie s\u00fa zhrnut\u00e9 tri druhy, ktor\u00e9 m\u00e1me na sklade, s uveden\u00edm v\u00fdhod pre ka\u017ed\u00fa z nich.<\/p>\n

\n\n\n\n\n\n\n\n
Materi\u00e1l kolesa<\/th>\nProti zadrhnutiu<\/th>\nSila<\/th>\nCena<\/th>\nNajlep\u0161ie prisp\u00f4sobenie<\/th>\n<\/tr>\n<\/thead>\n
C\u00ednov\u00fd bronz (CuSn10)<\/td>\nVynikaj\u00face<\/td>\nMierne<\/td>\nVysok\u00e1<\/td>\nPohony s nepretr\u017eitou prev\u00e1dzkou, aplik\u00e1cie citliv\u00e9 na teplo<\/td>\n<\/tr>\n
Hlin\u00edkovo-\u017eelezn\u00fd bronz (CuAl10Fe3)<\/td>\nDobr\u00e9<\/td>\nVysok\u00e1<\/td>\nMierne<\/td>\nPohony odoln\u00e9 vo\u010di n\u00e1razom, v\u00e4\u010d\u0161ie moduly<\/td>\n<\/tr>\n
Tv\u00e1rna liatina (s \u00fapravou proti starnutiu)<\/td>\nChudobn\u00fd<\/td>\nMierne<\/td>\nN\u00edzka<\/td>\nIba pomal\u00e9, nekritick\u00e9 disky<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Praktick\u00e9 pravidlo: c\u00ednov\u00fd bronz pre pohony, ktor\u00e9 be\u017eia osem alebo viac hod\u00edn denne a netoleruj\u00fa zadretie; hlin\u00edkovo-\u017eelezn\u00fd bronz pre sporadick\u00e9, ale vysok\u00e9 za\u0165a\u017eenie; liatina iba vtedy, ke\u010f sa pohon ot\u00e1\u010da menej ako nieko\u013eko ot\u00e1\u010dok za de\u0148 a rozpo\u010det je obmedzen\u00fd. \u00daprava proti starnutiu je pri liatinov\u00fdch koles\u00e1ch povinn\u00e1, preto\u017ee odstra\u0148uje vn\u00fatorn\u00e9 nap\u00e4tia v liat\u00ed, ktor\u00e9 by inak koleso po\u010das obr\u00e1bania deformovali.<\/p>\n

\"Valcov\u00e9<\/p>\n<\/section>\n

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\u00dadaje o v\u00fdkone: \u00da\u010dinnos\u0165, kontaktn\u00fd vzor a v\u00f4\u013ea<\/h2>\n

Ni\u017e\u0161ie uveden\u00e9 \u010d\u00edsla poch\u00e1dzaj\u00fa z n\u00e1\u0161ho laborat\u00f3ria kontroly kvality, meran\u00e9 na s\u00faprave DIN 7 M5 s kolesom z hlin\u00edkovo-\u017eelezn\u00e9ho bronzu a br\u00fasen\u00fdm vstupn\u00fdm hriade\u013eom 20CrMnTi pri vstupn\u00fdch ot\u00e1\u010dkach 1 500 ot.\/min, mazan\u00fdm v olejovom k\u00fapeli prevodov\u00fdm olejom ISO VG 460. Mali by sa ch\u00e1pa\u0165 ako typick\u00fd rozsah, a nie ako zaru\u010den\u00e1 hodnota pre ka\u017ed\u00fa \u0161ar\u017eu.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nTypick\u00fd rozsah<\/th>\nPozn\u00e1mky<\/th>\n<\/tr>\n<\/thead>\n
\u00da\u010dinnos\u0165 pohonu pri 20:1<\/td>\n82 \u2013 88 %<\/td>\nMlet\u00fd \u010derv, bronzov\u00e9 koleso, olejov\u00fd k\u00fape\u013e<\/td>\n<\/tr>\n
\u00da\u010dinnos\u0165 pohonu pri pomere 60:1<\/td>\n65 \u2013 72 %<\/td>\nRovnak\u00e1 konfigur\u00e1cia, vy\u0161\u0161\u00ed pomer<\/td>\n<\/tr>\n
Pokrytie kontaktn\u00e9ho vzoru<\/td>\n\u2265 60 % zubov\u00e1 plocha<\/td>\nPo 4 hodin\u00e1ch z\u00e1behu pri za\u0165a\u017een\u00ed 50 %<\/td>\n<\/tr>\n
V\u00f4\u013ea zubov (DIN 7)<\/td>\n60 \u2013 110 \u00b5m<\/td>\nNastaven\u00e9 podlo\u017ekou s rozstupom medzi stredmi<\/td>\n<\/tr>\n
Zv\u00fd\u0161enie teploty olejovej vane<\/td>\n30 \u2013 45 \u00b0C nad okolit\u00fa teplotu<\/td>\nNepretr\u017eit\u00e1 prev\u00e1dzka, bez extern\u00e9ho chladenia<\/td>\n<\/tr>\n
Hluk pri 1 500 ot.\/min.<\/td>\n58 \u2013 64 dB vo vzdialenosti 1 m<\/td>\nTestovacia komora bez izopropylalkoholu<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Rozdiel v \u00fa\u010dinnosti medzi 20:1 a 60:1 je najd\u00f4le\u017eitej\u0161\u00edm ponau\u010den\u00edm z kon\u0161trukcie t\u00fdchto pohonov: ka\u017ed\u00fd bod redukcie nad 40:1 stoj\u00ed dva a\u017e tri percentu\u00e1lne body \u00fa\u010dinnosti. Ke\u010f n\u00e1sledn\u00fd stroj potrebuje viac ako 40:1 a z\u00e1rove\u0148 potrebuje vysok\u00fa \u00fa\u010dinnos\u0165, kombin\u00e1cia jednostup\u0148ov\u00e9ho vstupu so \u0161pir\u00e1lov\u00fdm alebo \u010deln\u00fdm sekund\u00e1rnym stup\u0148om je takmer v\u017edy lacnej\u0161ia ako pou\u017e\u00edvanie samotn\u00e9ho prim\u00e1rneho stup\u0148a.<\/p>\n<\/section>\n

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Sprievodca v\u00fdberom valcov\u00fdch z\u00e1vitovkov\u00fdch kolies<\/h2>\n

\u0160es\u0165 vstupov ur\u010duje v\u00e4\u010d\u0161inu rozmerov nov\u00e9ho valcov\u00e9ho z\u00e1vitovkov\u00e9ho pohonu. Spr\u00e1vne zadanie t\u00fdchto vstupov u\u017e na prvom v\u00fdkrese u\u0161etr\u00ed t\u00fd\u017edne dohadovania po\u010das overovania prototypu.<\/p>\n