{"id":3312,"date":"2026-05-14T03:23:23","date_gmt":"2026-05-14T03:23:23","guid":{"rendered":"https:\/\/sprocket-chain.net\/?p=3312"},"modified":"2026-05-14T03:23:58","modified_gmt":"2026-05-14T03:23:58","slug":"chain-drive-power-rating","status":"publish","type":"post","link":"https:\/\/sprocket-chain.net\/sk\/chain-drive-power-rating\/","title":{"rendered":"V\u00fdkon re\u0165azov\u00e9ho pohonu: Od v\u00fdkonu motora po spr\u00e1vny rozstup re\u0165aze a po\u010det prame\u0148ov"},"content":{"rendered":"
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Pdizajn<\/sub><\/div>\n
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P_n\u00e1vrh = P_motor \u00d7 K_s \u2192 vyberte rozstup re\u0165aze \u2192 overte bezpe\u010dnostn\u00fd faktor<\/div>\n

V\u00fdkon re\u0165azov\u00e9ho pohonu: Od v\u00fdkonu motora po spr\u00e1vny rozstup re\u0165aze a po\u010det prame\u0148ov<\/h1>\n

Tabu\u013eky v\u00fdkonov\u00fdch parametrov pod\u013ea normy ANSI B29.1 uv\u00e1dzaj\u00fa maxim\u00e1lny v\u00fdkon, ktor\u00fd m\u00f4\u017ee jednovl\u00e1knov\u00e1 re\u0165az pren\u00e1\u0161a\u0165 pri danej r\u00fdchlosti a rozstupe \u2013 tieto parametre v\u0161ak obsahuj\u00fa predpoklady o prev\u00e1dzkov\u00fdch podmienkach, type mazania a malom po\u010dte zubov ozuben\u00e9ho kolesa, ktor\u00e9 je potrebn\u00e9 pred \u0161pecifik\u00e1ciou re\u0165aze overi\u0165 v porovnan\u00ed so skuto\u010dnou aplik\u00e1ciou.<\/p>\n

Nechajte si overi\u0165 v\u00fdpo\u010det v\u00e1\u0161ho v\u00fdkonu od na\u0161ich technikov<\/a><\/p>\n<\/div>\n<\/div>\n

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V\u00fdrobca priemyseln\u00fdch \u010derpadiel v Ulsane zaznamenal pred\u010dasn\u00e9 zlyhanie re\u0165aze na pohone \u010derpadla chladiacej vody \u2013 duplexn\u00e1 re\u0165az ANSI #80 dosiahla pred\u013a\u017eenie 3% za 11 mesiacov, pri\u010dom \u017eivotnos\u0165 pod\u013ea \u0161pecifik\u00e1cie bola 30+ mesiacov. Motor mal v\u00fdkon 18,5 kW pri 1 450 ot.\/min. s redukciou 3:1. Pri kontrole p\u00f4vodn\u00e9ho v\u00fdberu re\u0165aze sa uk\u00e1zalo, \u017ee in\u017einier vybral re\u0165az z tabu\u013eky ANSI B29.1 priamo s pou\u017eit\u00edm menovit\u00e9ho v\u00fdkonu motora. Tabu\u013eka ukazovala, \u017ee simplexn\u00e1 re\u0165az #80 pri 1 450 ot.\/min. mala menovit\u00fd v\u00fdkon 21,4 kW \u2013 \u010do je dostato\u010dn\u00e9 pre motor s v\u00fdkonom 18,5 kW s rezervou 15%. In\u017einier v\u0161ak nepou\u017eil servisn\u00fd faktor pre typ aplik\u00e1cie (stredn\u00fd r\u00e1z \u2013 pohon \u010derpadla s preru\u0161ovan\u00fdm \u0161tartovan\u00edm pri vysokom za\u0165a\u017een\u00ed: K_s = 1,4), korekciu mazania pre nain\u0161talovan\u00fd typ s odkvapk\u00e1vac\u00edm olejom (typ 2 \u2013 faktor 0,9 pri menovitom v\u00fdkone) a korekciu mal\u00e9ho ozuben\u00e9ho kolesa pre hnacie ozuben\u00e9 koleso 15T (faktor 0,9 pod referen\u010dnou hodnotou 17T). Korigovan\u00fd menovit\u00fd v\u00fdkon pre t\u00fato konkr\u00e9tnu in\u0161tal\u00e1ciu bol 21,4 \u00d7 0,9 \u00d7 0,9 = 17,3 kW \u2013 menej ako aplikovan\u00e9 za\u0165a\u017eenie 18,5 kW. Re\u0165az be\u017eala nepretr\u017eite nad svoj\u00edm korigovan\u00fdm menovit\u00fdm v\u00fdkonom o 7%, \u010do je viac ne\u017e dostato\u010dn\u00e9 na vysvetlenie skr\u00e1tenej \u017eivotnosti.<\/p>\n

Tabu\u013eky menovit\u00fdch v\u00fdkonov re\u0165azcov ANSI nenahr\u00e1dzaj\u00fa kompletn\u00fd v\u00fdpo\u010det menovit\u00fdch v\u00fdkonov pohonu. Ide o jeden vstup \u2013 maxim\u00e1lny menovit\u00fd v\u00fdkon za referen\u010dn\u00fdch podmienok. Referen\u010dn\u00e9 podmienky sa v re\u00e1lnych priemyseln\u00fdch aplik\u00e1ci\u00e1ch zriedka opakuj\u00fa. Ni\u017e\u0161ie uveden\u00fd v\u00fdpo\u010det poskytuje kompletn\u00fd postup.<\/p>\n

\"vz\u0165ah<\/p>\n

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Postup hodnotenia v\u00fdkonu re\u0165azov\u00e9ho pohonu v \u0161iestich krokoch<\/h2>\n
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1<\/div>\n
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Ur\u010dite kon\u0161truk\u010dn\u00fd v\u00fdkon<\/div>\n
P_kon\u0161trukcia = P_motor \u00d7 K_s<\/div>\n

P_motor je menovit\u00fd v\u00fdstupn\u00fd v\u00fdkon motora v kW. K_s je servisn\u00fd faktor z tabu\u013eky v kroku 2. Ide o v\u00fdkon, ktor\u00fd mus\u00ed by\u0165 re\u0165az menovit\u00e1 na prenos \u2013 nie v\u00fdkon uveden\u00fd na \u0161t\u00edtku motora. Pre pohony so zna\u010dnou zotrva\u010dnos\u0165ou (zotrva\u010dn\u00edky, ve\u013ek\u00e9 rotory, rozbehov\u00e9 za\u0165a\u017eenia) pou\u017eite ako z\u00e1klad pre n\u00e1vrh P \u0161pi\u010dkov\u00fd rozbehov\u00fd kr\u00fatiaci moment, a nie menovit\u00fd prev\u00e1dzkov\u00fd v\u00fdkon.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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2<\/div>\n
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Ur\u010dte servisn\u00fd faktor K_s<\/div>\n
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Typ za\u0165a\u017eenia<\/th>\n10 h\/de\u0148 (K_s)<\/th>\n16 h\/de\u0148 (K_s)<\/th>\n24 hod\u00edn denne (K_s)<\/th>\nPr\u00edklady aplik\u00e1ci\u00ed<\/th>\n<\/tr>\n<\/thead>\n
Hladk\u00fd (bez otrasov)<\/td>\n1.0<\/td>\n1.1<\/td>\n1.2<\/td>\nOdstrediv\u00e9 \u010derpadl\u00e1, ventil\u00e1tory, \u013eahk\u00e9 dopravn\u00edky<\/td>\n<\/tr>\n
Mierny \u0161ok<\/td>\n1.3<\/td>\n1.4<\/td>\n1.5<\/td>\nPiestov\u00e9 \u010derpadl\u00e1, kompresory, obr\u00e1bacie stroje<\/td>\n<\/tr>\n
Siln\u00fd \u0161ok<\/td>\n1.5<\/td>\n1.7<\/td>\n1.9<\/td>\nDrvi\u010de, lisy, dopravn\u00edky s n\u00e1razov\u00fdm za\u0165a\u017een\u00edm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Faktor prev\u00e1dzkov\u00fdch hod\u00edn zoh\u013ead\u0148uje akumul\u00e1ciu tepelnej \u00fanavy. Pohony prev\u00e1dzkovan\u00e9 24 hod\u00edn denne nikdy nedosiahnu tepeln\u00fa rovnov\u00e1hu \u2013 teplota re\u0165aze zost\u00e1va po\u010das cel\u00e9ho procesu zv\u00fd\u0161en\u00e1, \u010do zvy\u0161uje mieru pred\u013a\u017eenia. Faktor 24 hod\u00edn\/de\u0148 je kv\u00f4li tomuto tepeln\u00e9mu efektu vy\u0161\u0161\u00ed ako \u00famern\u00fd po\u010dtu hod\u00edn.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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3<\/div>\n
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Vyberte rozstup z tabu\u013eky v\u00fdkonov ANSI B29.1 pri ot\u00e1\u010dkach hnacieho hriade\u013ea<\/div>\n

Vyh\u013eadajte tabu\u013eku menovit\u00e9ho v\u00fdkonu re\u0165aze ANSI pri ot\u00e1\u010dkach hriade\u013ea pohonu (n\u2081). N\u00e1jdite prv\u00fd rozstup re\u0165aze, pri ktorom menovit\u00fd v\u00fdkon (pri pohone 17T, mazanie olejov\u00fdm k\u00fape\u013eom typu 3 \u2013 referen\u010dn\u00e9 podmienky) presahuje P_design. Toto d\u00e1va predbe\u017en\u00fd rozstup. Ak \u017eiadna jednopramenn\u00e1 re\u0165az nesp\u013a\u0148a P_design, zv\u00e1\u017ete mo\u017enosti s duplexn\u00fdmi alebo trojpramenn\u00fdmi lanami (menovit\u00fd v\u00fdkon sa vyn\u00e1sob\u00ed pribli\u017ene 1,7 pre duplexn\u00e9 lank\u00e1, 2,5 pre trojpramenn\u00e9 lank\u00e1 v porovnan\u00ed s jednopramenn\u00fdmi lankami pri rovnakom rozstupe).<\/p>\n

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Rozstup re\u0165aze<\/th>\n400 ot.\/min. (kW)<\/th>\n700 ot.\/min. (kW)<\/th>\n1 000 ot.\/min. (kW)<\/th>\n1 450 ot.\/min. (kW)<\/th>\n2 000 ot.\/min. (kW)<\/th>\n<\/tr>\n<\/thead>\n
#40 (12,7 mm)<\/td>\n1.4<\/td>\n2.1<\/td>\n2.7<\/td>\n3.3<\/td>\n3.9<\/td>\n<\/tr>\n
#50 (15,9 mm)<\/td>\n2.8<\/td>\n4.4<\/td>\n5.7<\/td>\n7.3<\/td>\n8.5<\/td>\n<\/tr>\n
#60 (19,05 mm)<\/td>\n5.0<\/td>\n7.9<\/td>\n10.4<\/td>\n13.7<\/td>\n16.2<\/td>\n<\/tr>\n
#80 (25,4 mm)<\/td>\n9.4<\/td>\n15.2<\/td>\n20.1<\/td>\n21.4<\/td>\n22.8<\/td>\n<\/tr>\n
#100 (31,75 mm)<\/td>\n15.8<\/td>\n25.6<\/td>\n34.0<\/td>\n36.2<\/td>\n38.4<\/td>\n<\/tr>\n
#120 (38,1 mm)<\/td>\n24.6<\/td>\n39.9<\/td>\n51.5<\/td>\n54.7<\/td>\n56.1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Referen\u010dn\u00e9 podmienky: 17T meni\u010d, mazanie typu 3 (olejov\u00fd k\u00fape\u013e), jednovl\u00e1knov\u00fd. Skuto\u010dn\u00fd menovit\u00fd v\u00fdkon vo va\u0161ej aplik\u00e1cii vy\u017eaduje korek\u010dn\u00e9 faktory z krokov 4\u20135.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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4<\/div>\n
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Pou\u017eite korek\u010dn\u00fd faktor mazania K_L<\/div>\n

Tabu\u013eka ANSI B29.1 predpoklad\u00e1 mazanie typu 3 (olejov\u00fd k\u00fape\u013e alebo n\u00faten\u00fd obeh). Ak je skuto\u010dn\u00e9 mazanie menej \u00fa\u010dinn\u00e9, pou\u017eite faktor zn\u00ed\u017eenia v\u00fdkonu stola:<\/p>\n

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Typ 1 \u2013 Manu\u00e1lne\/kvapkacie olejov\u00e9 \u010derpadlo<\/div>\n
K_L = 0,7\u20130,8<\/div>\n
Manu\u00e1lna aplik\u00e1cia \u2265 ka\u017ed\u00fdch 8 hod\u00edn; kvapkac\u00ed olej<\/div>\n<\/div>\n
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Typ 2 \u2013 Kvapkov\u00e1 alebo kot\u00fa\u010dov\u00e1 maznica<\/div>\n
K_L = 0,85\u20130,95<\/div>\n
Spr\u00e1vne nastaven\u00e9 kvapkanie; kontinu\u00e1lne pod\u00e1vanie<\/div>\n<\/div>\n
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Typ 3 \u2013 Olejov\u00fd k\u00fape\u013e \/ cirkul\u00e1cia<\/div>\n
K_L = 1,0<\/div>\n
Referen\u010dn\u00fd stav \u2013 plat\u00ed hodnotenie celej tabu\u013eky<\/div>\n<\/div>\n<\/div>\n

Korigovan\u00fd menovit\u00fd v\u00fdkon = tabu\u013ekov\u00fd menovit\u00fd v\u00fdkon \u00d7 K_L. Ak t\u00e1to korigovan\u00e1 hodnota presiahne P_design, re\u0165az je pre mazac\u00ed syst\u00e9m vhodn\u00e1. Ak nie, bu\u010f vylep\u0161ite mazac\u00ed syst\u00e9m, alebo prejdite na najbli\u017e\u0161\u00ed v\u00e4\u010d\u0161\u00ed rozstup.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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5<\/div>\n
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Pou\u017eite korek\u010dn\u00fd faktor mal\u00e9ho ozuben\u00e9ho kolesa K_T<\/div>\n

Referen\u010dn\u00e1 podmienka tabu\u013eky je un\u00e1\u0161a\u010d 17T. Ak sa po\u010det zubov un\u00e1\u0161a\u010da l\u00ed\u0161i od 17T, pou\u017eite K_T:<\/p>\n

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Zuby vodi\u010da (N\u2081)<\/th>\n11<\/th>\n12<\/th>\n13<\/th>\n14<\/th>\n15<\/th>\n17<\/th>\n19<\/th>\n21+<\/th>\n<\/tr>\n<\/thead>\n
K_T<\/td>\n0.53<\/td>\n0.62<\/td>\n0.70<\/td>\n0.78<\/td>\n0.85<\/td>\n1.00<\/td>\n1.08<\/td>\n1.15<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Korigovan\u00fd menovit\u00fd v\u00fdkon = tabu\u013ekov\u00fd menovit\u00fd v\u00fdkon \u00d7 K_L \u00d7 K_T. Toto je v\u00fdkon, ktor\u00fd re\u0165az dok\u00e1\u017ee pren\u00e1\u0161a\u0165 v skuto\u010dnej in\u0161tal\u00e1cii. Porovnajte s P_design, aby ste ur\u010dili primeranos\u0165.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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6<\/div>\n
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Overte bezpe\u010dnostn\u00fd faktor napnutia re\u0165aze<\/div>\n
F_tesnos\u0165 = (P_n\u00e1vrh \u00d7 1000) \/ v_re\u0165az [N]
\nSF = F_prelom \/ F_tesn\u00fd<\/div>\n

Vypo\u010d\u00edtajte nap\u00e4tie na pevnej strane z P_design a r\u00fdchlosti re\u0165aze v m\/s. Vyde\u013ete minim\u00e1lne medzn\u00e9 za\u0165a\u017eenie re\u0165aze (z tabu\u013eky v\u00fdrobcu) nap\u00e4t\u00edm na pevnej strane, aby ste z\u00edskali bezpe\u010dnostn\u00fd faktor. Norma ANSI B29.1 vy\u017eaduje SF \u2265 5,0 pre re\u0165azov\u00e9 pohony za norm\u00e1lnych podmienok. Ak SF < 5, zvo\u013ete bu\u010f najbli\u017e\u0161\u00ed v\u00e4\u010d\u0161\u00ed rozstup, alebo pridajte druh\u00fd prame\u0148. R\u00fdchlos\u0165 re\u0165aze: v_chain = (n\u2081 \u00d7 N\u2081 \u00d7 p) \/ 60 000, kde p = rozstup v mm a n\u2081 = ot\u00e1\u010dky re\u0165aze za min\u00fatu.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Pracovan\u00fd pr\u00edklad: Kompletn\u00fd v\u00fdpo\u010det menovit\u00e9ho v\u00fdkonu pre pod\u00e1vac\u00ed dopravn\u00edk drvi\u010da<\/h2>\n
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Dan\u00e9 podmienky<\/div>\n
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V\u00fdkon motora<\/div>\n
22 kW<\/div>\n<\/div>\n
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Ot\u00e1\u010dky hriade\u013ea hnacieho motora<\/div>\n
960 ot.\/min.<\/div>\n<\/div>\n
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Aplik\u00e1cia<\/div>\n
Pohon reme\u0148om pod\u00e1vacieho mechanizmu drvi\u010da \u2013 siln\u00fd tlmi\u010d<\/div>\n<\/div>\n
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Prev\u00e1dzka<\/div>\n
16 hod\u00edn denne nepretr\u017eite<\/div>\n<\/div>\n
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Ozuben\u00e9 koleso<\/div>\n
15T<\/div>\n<\/div>\n
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Mazanie<\/div>\n
Odkvapk\u00e1va\u010d oleja (typ 2)<\/div>\n<\/div>\n<\/div>\n
Rie\u0161enie krok za krokom<\/div>\n
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  1. K_s:<\/strong> Siln\u00fd \u0161ok, 16 h\/de\u0148 \u2192 K_s = 1.7<\/strong><\/li>\n
  2. P_dizajn<\/strong> = 22 \u00d7 1,7 = 37,4 kW<\/strong><\/li>\n
  3. V\u00fdber v\u00fd\u0161ky t\u00f3nu<\/strong> pri 960 ot.\/min z tabu\u013eky: interpol\u00e1cia medzi hodnotami 700 a 1 000 ot.\/min \u2014 v\u00fdkony #100 \u2248 31,0 kW pri 960 ot.\/min (pr\u00edli\u0161 n\u00edzke). v\u00fdkony #120 \u2248 47,5 kW pri 960 ot.\/min \u2192 predbe\u017en\u00fd sklon = #120<\/strong><\/li>\n
  4. K_L<\/strong> (Kvapkov\u00e1 olejova\u010dka typu 2) = 0.90<\/strong>Korigovan\u00fd v\u00fdkon = 47,5 \u00d7 0,90 = 42,8 kW<\/li>\n
  5. K_T<\/strong> (ovl\u00e1da\u010d 15T) = 0.85<\/strong>Kone\u010dn\u00e9 korigovan\u00e9 hodnotenie = 42,8 \u00d7 0,85 = 36,4 kW<\/strong><\/li>\n
  6. Porovnajte:<\/strong> 36,4 kW < 37,4 kW (P_design). Rezerva je \u22122,7%. Jednovl\u00e1knov\u00fd vodi\u010d #120 ZLYH\u00c1VA s mal\u00fdm rozdielom.<\/span><\/li>\n
  7. Mo\u017enosti:<\/strong> (a) Prechod na mazanie v olejovom k\u00fapeli (K_L = 1,0) \u2192 42,8 \u00d7 1,0 \u00d7 0,85 = 36,4 st\u00e1le margin\u00e1lne. (b) Zv\u00fd\u0161enie v\u00fdkonu meni\u010da na 17T \u2192 K_T = 1,0; menovit\u00fd v\u00fdkon sa zmen\u00ed na 47,5 \u00d7 0,90 \u00d7 1,0 = 42,8 kW. PRESADZUJE s rozdielom 14%. \u2713<\/span> (c) Pou\u017eite duplexn\u00fd zdroj #100: 31,0 \u00d7 1,7 \u00d7 0,90 \u00d7 0,85 = 40,3 kW. PRESADZUJE s rozdielom 8%. \u2713<\/span><\/li>\n
  8. Kontrola bezpe\u010dnostn\u00e9ho faktora (ovl\u00e1da\u010d 17T, #120, odkvapk\u00e1vac\u00ed olej):<\/strong> v_re\u0165az = (960 \u00d7 17 \u00d7 38,1) \/ 60 000 = 10,3 m\/s. F_tesn\u00fd = (37 400 W) \/ 10,3 = 3 631 N. SF = 124 500 \/ 3 631 = 34.3<\/strong>V\u00fdrazne nad minimom 5,0 \u2013 re\u0165az je \u0161truktur\u00e1lne primeran\u00e1; kontrola menovit\u00e9ho v\u00fdkonu je rozhoduj\u00facim krit\u00e9riom pre tento v\u00fdber.<\/li>\n<\/ol>\n<\/div>\n
    Protiintuit\u00edvne: pri v\u00e4\u010d\u0161ine re\u0165azov\u00fdch pohonov pri stredn\u00fdch \u00farovniach v\u00fdkonu je bezpe\u010dnostn\u00fd faktor proti statick\u00e9mu za\u0165a\u017eeniu pri pretrhnut\u00ed ve\u013emi vysok\u00fd (20 \u2013 50\u00d7) a nehr\u00e1 \u017eiadnu \u00falohu pri rozhodovan\u00ed o v\u00fdbere re\u0165aze. Z\u00e1v\u00e4zn\u00fdm obmedzen\u00edm je \u00fanavov\u00e1 nosnos\u0165 \u2013 cyklick\u00e1 \u00fanosnos\u0165 obmedzen\u00e1 \u00fanavou \u010dl\u00e1nkovej dosky a \u010dapu, nie statickou medzou klzu.<\/strong> Tabu\u013eky v\u00fdkonov\u00fdch parametrov ANSI uv\u00e1dzaj\u00fa medzu \u00fanavy, nie statick\u00fa kapacitu. Preto v\u00fdpo\u010det bezpe\u010dnostn\u00e9ho faktora (krok 6) zriedka vyber\u00e1 v\u00e4\u010d\u0161iu re\u0165az, ako s\u00fa uveden\u00e9 kroky v\u00fdkonov\u00fdch parametrov \u2013 re\u0165az, ktor\u00e1 prejde kontrolou v\u00fdkonov\u00fdch parametrov, m\u00e1 zvy\u010dajne bezpe\u010dnostn\u00fd faktor pri pretrhnut\u00ed 20 \u2013 50, \u010do je v\u00fdrazne nad po\u017eadovanou hodnotou 5,0. Naopak, aplik\u00e1cie s ve\u013emi n\u00edzkou r\u00fdchlos\u0165ou, ale ve\u013emi vysok\u00fdm kr\u00fatiacim momentom m\u00f4\u017eu vytv\u00e1ra\u0165 nap\u00e4tia na tesnej strane, ktor\u00e9 sa bl\u00ed\u017eia k minim\u00e1lnemu pretrhnutiu re\u0165aze \u2013 vtedy sa krok 6 st\u00e1va rozhoduj\u00facim obmedzen\u00edm. V\u017edy skontrolujte oboje.<\/div>\n

    <\/p>\n

    Kedy zvoli\u0165 viacvl\u00e1knov\u00fd vodi\u010d namiesto v\u00e4\u010d\u0161ieho rozstupu<\/h2>\n

    \"\"<\/p>\n

    Ke\u010f je v\u00fdkon jedn\u00e9ho lanka pri danom rozstupe nedostato\u010dn\u00fd, kon\u0161trukt\u00e9r m\u00e1 dve mo\u017enosti: zv\u00fd\u0161i\u0165 rozstup alebo zv\u00fd\u0161i\u0165 po\u010det laniek. Vo\u013eba medzi nimi z\u00e1vis\u00ed od obmedzen\u00ed priemeru ozuben\u00e9ho kolesa, dostupnosti a n\u00e1kladov.<\/p>\n

    \n\n\n\n\n\n\n\n\n\n\n
    Rozhodovac\u00ed faktor<\/th>\nZv\u00fd\u0161i\u0165 v\u00fd\u0161ku t\u00f3nu (napr. #80 \u2192 #100)<\/th>\nPrida\u0165 prame\u0148 (napr. #80 simplex \u2192 duplex)<\/th>\n<\/tr>\n<\/thead>\n
    Vplyv vonkaj\u0161ieho priemeru ozuben\u00e9ho kolesa<\/td>\nV\u00e4\u010d\u0161\u00ed vonkaj\u0161\u00ed priemer \u2013 m\u00f4\u017ee prekro\u010di\u0165 ob\u00e1lku<\/td>\nRovnak\u00fd vonkaj\u0161\u00ed priemer \u2014 iba \u0161ir\u0161ia plocha ozuben\u00e9ho kolesa<\/td>\n<\/tr>\n
    Zv\u00fd\u0161enie v\u00fdkonu<\/td>\n#80\u2192#100: +80% kapacita pri rovnak\u00fdch ot\u00e1\u010dkach<\/td>\nJednostranne\u2192obojstranne: kapacita \u00d71,7<\/td>\n<\/tr>\n
    \u0160\u00edrka re\u0165aze<\/td>\nU\u017e\u0161ie ako viacvl\u00e1knov\u00e9<\/td>\n\u0160ir\u0161ie \u2013 ovplyv\u0148uje po\u017eiadavky na zarovnanie hriade\u013eov<\/td>\n<\/tr>\n
    Vysokor\u00fdchlostn\u00fd v\u00fdkon<\/td>\nHor\u0161ie (v\u00e4\u010d\u0161\u00ed rozstup = v\u00e4\u010d\u0161\u00ed polyg\u00f3nov\u00fd efekt)<\/td>\nRovnak\u00e9 ako jednovl\u00e1knov\u00e9 s rovnak\u00fdm rozstupom<\/td>\n<\/tr>\n
    Cena<\/td>\nMierny n\u00e1rast<\/td>\nProporcion\u00e1lne zv\u00fd\u0161enie (\u00d71,7 pre duplex)<\/td>\n<\/tr>\n
    Preferovan\u00e9, ke\u010f:<\/td>\nVonkaj\u0161\u00ed priemer ozuben\u00e9ho kolesa nie je obmedzen\u00fd; ni\u017e\u0161ia r\u00fdchlos\u0165<\/td>\nVonkaj\u0161\u00ed priemer ozuben\u00e9ho kolesa mus\u00ed zosta\u0165 mal\u00fd; vy\u0161\u0161ia r\u00fdchlos\u0165<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    <\/p>\n

    Be\u017en\u00e9 chyby vo v\u00fdpo\u010dtoch a ako sa im vyhn\u00fa\u0165<\/h2>\n

    Pou\u017eitie v\u00fdkonu motora bez servisn\u00e9ho faktora.<\/strong> Naj\u010dastej\u0161ia chyba \u2013 v\u00fdber re\u0165aze na z\u00e1klade v\u00fdkonu motora uveden\u00e9ho na \u0161t\u00edtku bez vyn\u00e1sobenia K_s. Pre motor s v\u00fdkonom 22 kW v aplik\u00e1cii na nap\u00e1janie drvi\u010da (K_s = 1,7) je kon\u0161truk\u010dn\u00fd v\u00fdkon 37,4 kW. Re\u0165az s menovit\u00fdm v\u00fdkonom 22 kW pri tejto r\u00fdchlosti je v\u00fdrazne poddimenzovan\u00e1. Pred vyh\u013eadan\u00edm tabu\u013eky v\u00fdkonu pou\u017eite servisn\u00fd faktor. Technick\u00e9 \u0161pecifik\u00e1cie re\u0165az\u00ed pre v\u0161etky \u0161tandardn\u00e9 rozstupy ANSI<\/a> s\u00fa k dispoz\u00edcii od n\u00e1\u0161ho produktov\u00e9ho t\u00edmu.<\/p>\n

    \"ozuben\u00e9<\/p>\n

    Ignorovanie korekcie mal\u00e9ho ozuben\u00e9ho kolesa pod 17T.<\/strong> Pohony s obmedzen\u00fdm priestorom \u010dasto pou\u017e\u00edvaj\u00fa mal\u00e9 ozuben\u00e9 koles\u00e1 s 12 \u2013 15 zubami. Oto\u010dn\u00fd prevodn\u00edk 13T pri 1 000 ot.\/min zni\u017euje efekt\u00edvny menovit\u00fd v\u00fdkon re\u0165aze na 701 TP3T tabu\u013ekovej hodnoty. T\u00e1to korekcia sa nach\u00e1dza v norme ANSI B29.1, ale in\u017einieri ju \u010dasto neuplat\u0148uj\u00fa pou\u017e\u00edvaj\u00faci zjednodu\u0161en\u00e9 tabu\u013eky. Jedin\u00fdm rie\u0161en\u00edm pre pohon, ktor\u00fd u\u017e m\u00e1 nain\u0161talovan\u00fd mal\u00fd ozuben\u00fd prevodn\u00edk, je zv\u00fd\u0161i\u0165 po\u010det zubov ozuben\u00e9ho kolesa \u2013 v\u00fdmena rozstupu re\u0165aze nevyrie\u0161i nedostatok K_T, ak po\u010det ozuben\u00fdch kolies zostane pod 17T.<\/p>\n

    Zanedbanie obmedzen\u00ed r\u00fdchlosti re\u0165aze pri ve\u013ekom rozstupe a vysok\u00fdch ot\u00e1\u010dkach.<\/strong> Tabu\u013eka v\u00fdkonov\u00fdch parametrov ANSI zobrazuje \u0161pi\u010dkov\u00fd v\u00fdkon pri optim\u00e1lnej r\u00fdchlosti re\u0165aze pre ka\u017ed\u00fd rozstup, pri\u010dom nad touto r\u00fdchlos\u0165ou sa v\u00fdkon zni\u017euje. Re\u0165az #120 pri 1 450 ot.\/min. na un\u00e1\u0161a\u010di 17T m\u00e1 r\u00fdchlos\u0165 re\u0165aze (1 450 \u00d7 17 \u00d7 38,1) \/ 60 000 = 15,6 m\/s \u2013 nad optim\u00e1lnou r\u00fdchlos\u0165ou pre tento rozstup. Menovit\u00fd v\u00fdkon v tabu\u013eke za t\u00fdchto podmienok odr\u00e1\u017ea zn\u00ed\u017een\u00fd v\u00fdkon, ale in\u017einieri, ktor\u00ed \u010d\u00edtaj\u00fa skr\u00e1ten\u00fa tabu\u013eku, m\u00f4\u017eu \u0161pi\u010dkov\u00fd v\u00fdkon pou\u017ei\u0165 nespr\u00e1vne. V\u017edy pou\u017e\u00edvajte st\u013apec \u0161pecifick\u00fd pre ot\u00e1\u010dky, nie maxim\u00e1lnu hodnotu v riadku rozstupu.<\/p>\n

    Pre sady re\u0165az\u00ed a ozuben\u00fdch kolies na mieru<\/a> kde v\u00fdpo\u010det vedie k nezvy\u010dajn\u00e9mu rozstupu re\u0165aze alebo po\u010dtu zubov<\/strong>, po\u0161lite \u0161es\u0165 vstupn\u00fdch hodn\u00f4t (v\u00fdkon motora, ot\u00e1\u010dky, typ slu\u017eby, prev\u00e1dzkov\u00e9 hodiny, typ mazania, po\u010det zubov un\u00e1\u0161a\u010da) n\u00e1\u0161mu technick\u00e9mu t\u00edmu \u2013 pred zadan\u00edm akejko\u013evek objedn\u00e1vky over\u00edme cel\u00fd \u0161es\u0165krokov\u00fd v\u00fdpo\u010det a potvrd\u00edme \u0161pecifik\u00e1ciu.<\/p>\n

    \"ozuben\u00e9<\/p>\n

    \u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
    \nAko zoh\u013ead\u0148uje menovit\u00fd v\u00fdkon ANSI vzdialenos\u0165 os\u00ed a d\u013a\u017eku re\u0165aze?<\/summary>\n
    Menovit\u00e9 v\u00fdkony pod\u013ea ANSI B29.1 s\u00fa zalo\u017een\u00e9 na referen\u010dnej vzdialenosti os\u00ed, ktor\u00e1 d\u00e1va pribli\u017ene 120 \u010dl\u00e1nkov v hnacej slu\u010dke \u2013 stredn\u00fd rozsah, ktor\u00fd predstavuje typick\u00e9 prev\u00e1dzkov\u00e9 podmienky. Pri ve\u013emi kr\u00e1tkych vzdialenostiach os\u00ed (pod rozstup 20\u00d7) je po\u010det \u010dl\u00e1nkov v kontakte na hnacom ozubenom kolese ni\u017e\u0161\u00ed ako v referen\u010dnom stave a za\u0165a\u017eenie na \u010dl\u00e1nok je vy\u0161\u0161ie, \u010do mierne zni\u017euje efekt\u00edvny menovit\u00fd v\u00fdkon. Pri ve\u013emi dlh\u00fdch vzdialenostiach os\u00ed (nad rozstup 80\u00d7) sa v\u00fdznamn\u00fdmi faktormi st\u00e1vaj\u00fa previs re\u0165aze a vibr\u00e1cie. \u0160tandardnou korekciou je udr\u017eiava\u0165 vzdialenosti os\u00ed medzi 30 a 50-n\u00e1sobkom rozstupu re\u0165aze pre optim\u00e1lny v\u00fdkon pohonu. Pohony mimo tohto rozsahu by mali pou\u017ei\u0165 korek\u010dn\u00e9 tabu\u013eky ANSI B29.1 pre vplyvy vzdialenosti os\u00ed alebo by sa mali overi\u0165 v\u00fdpo\u010dtom oproti skuto\u010dn\u00e9mu napnutiu re\u0165aze pri \u0161pecifickej geometrii.<\/div>\n<\/details>\n
    \nD\u00e1 sa postup pre hodnotenie v\u00fdkonu pou\u017ei\u0165 na vysokopevnostn\u00fa re\u0165az s\u00e9rie SP?<\/summary>\n
    \u00c1no \u2013 re\u0165aze s\u00e9rie SP pou\u017e\u00edvaj\u00fa rovnak\u00fd postup pre hodnotenie v\u00fdkonu s jednou \u00fapravou: menovit\u00fd v\u00fdkon z tabu\u013eky ANSI B29.1 sa vz\u0165ahuje na \u0161tandardn\u00fa re\u0165az. Pre s\u00e9riu SP je limit \u00fanavy pribli\u017ene o 751 TP3T vy\u0161\u0161\u00ed ako pre \u0161tandardn\u00fa re\u0165az pri rovnakom rozstupe, \u010do sa odr\u00e1\u017ea v tabu\u013ek\u00e1ch menovit\u00e9ho v\u00fdkonu s\u00e9rie SP publikovan\u00fdch v\u00fdrobcami s\u00e9rie SP. V praxi to znamen\u00e1, \u017ee ak \u0161es\u0165krokov\u00fd postup prinesie hrani\u010dn\u00fd v\u00fdsledok so \u0161tandardnou re\u0165azou (kon\u0161truk\u010dn\u00fd v\u00fdkon v rozmedz\u00ed 20 \u2013 301 TP3T od korigovan\u00e9ho menovit\u00e9ho v\u00fdkonu), re\u0165az s\u00e9rie SP m\u00f4\u017ee poskytn\u00fa\u0165 primeran\u00fa rezervu bez zmeny rozstupu alebo po\u010dtu prame\u0148ov. Pre aplik\u00e1cie, kde \u0161tandardn\u00e1 re\u0165az prech\u00e1dza s pohodlnou rezervou (kon\u0161truk\u010dn\u00fd v\u00fdkon men\u0161\u00ed ako 701 TP3T od korigovan\u00e9ho menovit\u00e9ho v\u00fdkonu), s\u00e9ria SP neposkytuje \u017eiadnu \u010fal\u0161iu v\u00fdhodu \u2013 re\u0165az sa neprev\u00e1dzkuje na \u00farovni za\u0165a\u017eenia, kde je zlep\u0161en\u00fd limit \u00fanavy relevantn\u00fd.<\/div>\n<\/details>\n
    \nAk\u00fd je spr\u00e1vny prev\u00e1dzkov\u00fd faktor pre pohon dopravn\u00edka, ktor\u00fd sa sp\u00fa\u0161\u0165a 4 \u2013 6-kr\u00e1t za hodinu s vysok\u00fdmi zotrva\u010dn\u00fdmi za\u0165a\u017eeniami?<\/summary>\n
    \u010cast\u00e9 \u0161tartovanie s vysokou zotrva\u010dnos\u0165ou spad\u00e1 do kateg\u00f3rie \u201e\u0165a\u017ek\u00fdch r\u00e1zov\u201c \u2013 K_s = 1,5 (10 h\/de\u0148), 1,7 (16 h\/de\u0148) alebo 1,9 (24 h\/de\u0148). Av\u0161ak pre pohony dopravn\u00edkov so zotrva\u010dnos\u0165ou v\u00fdrazne v\u00e4\u010d\u0161ou ako prev\u00e1dzkov\u00e9 za\u0165a\u017eenie m\u00f4\u017ee by\u0165 samotn\u00fd prev\u00e1dzkov\u00fd faktor ANSI B29.1 nedostato\u010dn\u00fd. V t\u00fdchto pr\u00edpadoch vypo\u010d\u00edtajte \u0161pi\u010dkov\u00fd \u0161tartovac\u00ed kr\u00fatiaci moment z krivky kr\u00fatiaceho momentu motora a ot\u00e1\u010dok a pripojenej zotrva\u010dnosti, preve\u010fte ho na napnutie re\u0165aze pomocou polomeru ozuben\u00e9ho kolesa a overte bezpe\u010dnostn\u00fd faktor (krok 6) oproti tomuto \u0161pi\u010dkov\u00e9mu nap\u00e4tiu, a nie vo\u010di ust\u00e1len\u00e9mu prev\u00e1dzkov\u00e9mu nap\u00e4tiu. Bezpe\u010dnostn\u00fd faktor re\u0165aze mus\u00ed zosta\u0165 nad 5,0 pri \u0161pi\u010dkovom \u0161tartovacom stave, nielen pri menovitom prev\u00e1dzkovom stave. Pre pohony s ve\u013emi vysokou \u0161tartovacou frekvenciou alebo ve\u013emi ve\u013ek\u00fdmi pomermi zotrva\u010dnosti (zotrva\u010dnos\u0165 rota\u010dnej hmoty v\u00e4\u010d\u0161ia ako 5-n\u00e1sobok zotrva\u010dnosti rotora motora) m\u00f4\u017ee by\u0165 potrebn\u00e9 re\u0165az dimenzova\u0165 iba na z\u00e1klade \u0161tartovacieho kr\u00fatiaceho momentu, pri\u010dom prev\u00e1dzkov\u00e9 za\u0165a\u017eenie mus\u00ed by\u0165 v r\u00e1mci kapacity.<\/div>\n<\/details>\n

    <\/p>\n

    \n
    <\/div>\n
    \n
    P_design \u2192 Hodnotenie tabu\u013eky \u00d7 K_L \u00d7 K_T \u2192 Kontrola SF \u2192 Potvrdenie re\u0165azca<\/div>\n

    Potrebujete si pred objednan\u00edm overi\u0165 v\u00fdber re\u0165aze?<\/h2>\n

    Odo\u0161lite v\u00fdkon motora (kW), ot\u00e1\u010dky hnacieho hriade\u013ea, ot\u00e1\u010dky hnan\u00e9ho hriade\u013ea, typ aplik\u00e1cie, prev\u00e1dzkov\u00e9 hodiny a typ mazania. Na\u0161i technici vykonaj\u00fa \u0161es\u0165krokov\u00fd v\u00fdpo\u010det pod\u013ea normy ANSI B29.1 a pred v\u00fdrobou potvrdia spr\u00e1vny rozstup, po\u010det prame\u0148ov a po\u010det zubov ozuben\u00e9ho kolesa.<\/p>\n

    Prehliada\u0165 sortiment re\u0165az\u00ed pod\u013ea rozte\u010de<\/a>
    \n    Odoslanie parametrov pohonu na v\u00fdpo\u010det<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n

    Redaktor: Cxm<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Pdesign P_design = P_motor \u00d7 K_s \u00a0\u2192\u00a0 select chain pitch \u00a0\u2192\u00a0 verify safety factor Chain Drive Power Rating: From Motor Output to Correct Chain Pitch and Strand Count The ANSI B29.1 power rating tables give the maximum power a single-strand chain can transmit at a given speed and pitch \u2014 but these ratings contain assumptions […]<\/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":[6634],"tags":[78,9,69],"class_list":["post-3312","post","type-post","status-publish","format-standard","hentry","category-chain-sprocket","tag-chain-sprocket","tag-roller-chain","tag-sprocket-china"],"_links":{"self":[{"href":"https:\/\/sprocket-chain.net\/sk\/wp-json\/wp\/v2\/posts\/3312","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sprocket-chain.net\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sprocket-chain.net\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sprocket-chain.net\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sprocket-chain.net\/sk\/wp-json\/wp\/v2\/comments?post=3312"}],"version-history":[{"count":1,"href":"https:\/\/sprocket-chain.net\/sk\/wp-json\/wp\/v2\/posts\/3312\/revisions"}],"predecessor-version":[{"id":3313,"href":"https:\/\/sprocket-chain.net\/sk\/wp-json\/wp\/v2\/posts\/3312\/revisions\/3313"}],"wp:attachment":[{"href":"https:\/\/sprocket-chain.net\/sk\/wp-json\/wp\/v2\/media?parent=3312"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sprocket-chain.net\/sk\/wp-json\/wp\/v2\/categories?post=3312"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sprocket-chain.net\/sk\/wp-json\/wp\/v2\/tags?post=3312"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}