{"id":747,"date":"2026-06-03T01:47:04","date_gmt":"2026-06-03T01:47:04","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?p=747"},"modified":"2026-06-03T01:47:04","modified_gmt":"2026-06-03T01:47:04","slug":"planetary-gearbox-torsional-stiffness-dynamic-accuracy-ct-backlash","status":"publish","type":"post","link":"https:\/\/planetary-gearboxes.com\/sk\/planetary-gearbox-torsional-stiffness-dynamic-accuracy-ct-backlash\/","title":{"rendered":"Vysvetlenie torznej tuhosti plan\u00e9tovej prevodovky \u2013 pre\u010do je torzn\u00e1 tuhos\u0165 pri vysokom kr\u00fatiacom momente d\u00f4le\u017eitej\u0161ia ako v\u00f4\u013ea"},"content":{"rendered":"
\n

<\/p>\n

\n
\n
<\/div>\n
<\/div>\n
\n
K\u00f3rea Ever-Power<\/span>
\nTechnick\u00fd h\u013abkov\u00fd poh\u013ead \u00b7 Dynamika<\/span><\/div>\n

Vysvetlenie torznej tuhosti plan\u00e9tovej prevodovky \u2013 pre\u010do je torzn\u00e1 tuhos\u0165 pri vysokom kr\u00fatiacom momente d\u00f4le\u017eitej\u0161ia ako v\u00f4\u013ea<\/h1>\n

Ka\u017ed\u00e1 presnos\u0165 plan\u00e9tov\u00e1 prevodovka<\/a> V \u00fadajovom liste sa uv\u00e1dza v\u00f4\u013ea v uhlov\u00fdch min\u00fatach. Menej ako 20% uv\u00e1dza torzn\u00fa tuhos\u0165. Napriek tomu pri zna\u010dnom aplikovanom kr\u00fatiacom momente \u2013 v skuto\u010dn\u00fdch prev\u00e1dzkov\u00fdch podmienkach CNC oto\u010dn\u00e9ho stola, \u0165a\u017ek\u00e9ho robotick\u00e9ho k\u013abu alebo servolisu \u2013 elastick\u00e1 uhlov\u00e1 v\u00fdchylka z torznej poddajnosti \u00faplne prekra\u010duje \u0161pecifik\u00e1ciu v\u00f4le. T\u00e1to pr\u00edru\u010dka to presne vystihuje.<\/p>\n

Z\u00edskajte anal\u00fdzu tuhosti pre va\u0161u aplik\u00e1ciu \u2192<\/a><\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

Parameter, ktor\u00fd dominuje presnosti pri za\u0165a\u017een\u00ed \u2013 a zriedka sa objavuje vo v\u00fdberov\u00fdch pr\u00edru\u010dk\u00e1ch<\/h2>\n

V\u00f4\u013ea je \u0161pecifik\u00e1cia presnosti, ktor\u00fa pozn\u00e1 ka\u017ed\u00fd voli\u010d prevodovky. Je to uhlov\u00e9 m\u0155tve p\u00e1smo pri zmene smeru \u2013 merate\u013en\u00e9 bez za\u0165a\u017eenia, uveden\u00e9 na ka\u017edom technickom liste a zvy\u010dajne prv\u00e9 (a niekedy jedin\u00e9) krit\u00e9rium presnosti pou\u017e\u00edvan\u00e9 pri porovn\u00e1van\u00ed plan\u00e9tov\u00fdch prevodoviek. Torzn\u00e1 tuhos\u0165, ozna\u010den\u00e1 Ct a meran\u00e1 v N\u00b7m\/arcmin, je parameter, ktor\u00fd ur\u010duje, o ko\u013eko sa v\u00fdstupn\u00fd hriade\u013e elasticky ot\u00e1\u010da pri p\u00f4soben\u00ed za\u0165a\u017eenia. Objavuje sa v menej ako jednej z piatich publikovan\u00fdch pr\u00edru\u010diek pre v\u00fdber plan\u00e9tov\u00fdch prevodoviek \u2013 a \u00faplne ch\u00fdba vo v\u00e4\u010d\u0161ine n\u00e1strojov na dimenzovanie \u0161pecifick\u00fdch pre dan\u00fa aplik\u00e1ciu.<\/p>\n

Toto vytv\u00e1ra systematick\u00e9 slep\u00e9 miesto: in\u017einieri starostlivo \u0161pecifikuj\u00fa v\u00f4\u013eu, vyber\u00fa jednotku s n\u00edzkou v\u00f4\u013eou a potom zistia, \u017ee pri ich skuto\u010dnom prev\u00e1dzkovom kr\u00fatiacom momente sp\u00f4sobuje elastick\u00e1 v\u00fdchylka od torznej poddajnosti uhlov\u00fa chybu dva a\u017e \u0161tyrikr\u00e1t v\u00e4\u010d\u0161iu ako v\u00f4\u013ea, ktor\u00fa \u0161pecifikovali. Tieto dva javy maj\u00fa \u00faplne nez\u00e1visl\u00fd p\u00f4vod \u2013 a prevodovka s malou v\u00f4\u013eou m\u00f4\u017ee ma\u0165 n\u00edzku torzn\u00fa tuhos\u0165 a naopak.<\/p>\n

\n
\n
Sp\u00e4tn\u00e1 v\u00e4zba \u2014 Chyba zvr\u00e1tenia smeru<\/div>\n

Uhlov\u00e1 m\u0155tva z\u00f3na medzi vstupom a v\u00fdstupom pri zmene smeru pohonu. \u010cisto geometrick\u00e1 \u2013 sp\u00f4soben\u00e1 v\u00f4\u013eou medzi zubami ozuben\u00e9ho kolesa. Pr\u00edtomn\u00e1 na nulov\u00e9 za\u0165a\u017eenie<\/strong>Pevn\u00e9 po v\u00fdrobe (k\u00fdm opotrebenie nezv\u00fd\u0161i jeho hodnotu). \u0160pecifik\u00e1cia je v uhlov\u00fdch min\u00fatach.<\/p>\n

Meran\u00e9 pri: menovitom kr\u00fatiacom momente \u00b131 TP3T
\nNast\u00e1va, ke\u010f: sa smer zmen\u00ed
\nZ\u00e1vis\u00ed od: v\u00fdrobnej tolerancie<\/div>\n<\/div>\n
\n
Torzn\u00e1 deform\u00e1cia \u2013 chyba z\u00e1visl\u00e1 od za\u0165a\u017eenia<\/div>\n

Elastick\u00e9 \u201enav\u00edjanie\u201c zubov ozuben\u00fdch kolies, hriade\u013eov a un\u00e1\u0161a\u010da plan\u00e9t pri p\u00f4soben\u00ed kr\u00fatiaceho momentu. \u00damern\u00e9 za\u0165a\u017eeniu. Vyskytuje sa pri ak\u00e1ko\u013evek \u00farove\u0148 kr\u00fatiaceho momentu<\/strong>Zmizne po odstr\u00e1nen\u00ed za\u0165a\u017eenia (elastick\u00e9). Rastie s ka\u017ed\u00fdm N\u00b7m aplikovan\u00e9ho kr\u00fatiaceho momentu za nulou.<\/p>\n

Vzorec: \u03b8_elastic = T \/ Ct (uhlov\u00fd min\u00fat)
\nVyskytuje sa pri: akomko\u013evek aplikovanom kr\u00fatiacom momente
\nZ\u00e1vis\u00ed od: tuhosti prevodovky Ct<\/div>\n<\/div>\n
\n
Celkov\u00e1 uhlov\u00e1 chyba \u2013 \u010do n\u00e1stroj skuto\u010dne vid\u00ed<\/div>\n

V re\u00e1lnych servo aplik\u00e1ci\u00e1ch celkov\u00e1 chyba polohovania zah\u0155\u0148a oba pr\u00edspevky s\u00fa\u010dasne. Pri n\u00edzkych kr\u00fatiacich momentoch dominuje v\u00f4\u013ea. Pri vysok\u00fdch kr\u00fatiacich momentoch \u2013 nad bodom prekro\u010denia, ktor\u00fd z\u00e1vis\u00ed od Ct \u2013 elastick\u00e1 v\u00fdchylka prevy\u0161uje v\u00f4\u013eu a st\u00e1va sa prim\u00e1rnym limitom presnosti<\/strong>.<\/p>\n

\u03b8_celkov\u00fd \u2248 \u03b8_v\u00f4\u013ea + \u03b8_pru\u017enos\u0165
\n= BL + T\/Ct (uhl. min\u00fata)
\nLine\u00e1rne: E = R \u00d7 tan(\u03b8_total\/60 \u00d7 \u03c0\/180)<\/div>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

Kompletn\u00e1 tabu\u013eka torznej tuhosti s\u00e9rie EP \u2013 v\u0161etky ve\u013ekosti r\u00e1mov a s\u00e9rie<\/h2>\n

Nasleduj\u00face \u0161pecifik\u00e1cie predstavuj\u00fa certifikovan\u00e9 hodnoty torznej tuhosti pre v\u0161etky presn\u00e9 plan\u00e9tov\u00e9 prevodovky s\u00e9rie Ever-Power EP od spolo\u010dnosti Korea. Torzn\u00e1 tuhos\u0165 Ct je definovan\u00e1 ako v\u00fdstupn\u00fd kr\u00fatiaci moment potrebn\u00fd na vytvorenie jednej obl\u00fakovej min\u00faty elastickej uhlovej v\u00fdchylky na v\u00fdstupnom hriadeli pri za\u0165a\u017een\u00ed, pri\u010dom vstupn\u00fd hriade\u013e je pevn\u00fd. Vy\u0161\u0161ia tuhos\u0165 Ct znamen\u00e1 men\u0161iu elastick\u00fa v\u00fdchylku pri rovnakom aplikovanom kr\u00fatiacom momente \u2013 a teda lep\u0161iu presnos\u0165 dynamick\u00e9ho polohovania.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n
S\u00e9ria<\/th>\nR\u00e1m (mm)<\/th>\nCt \u2014 1-stup\u0148ov\u00e1
\n(N\u00b7m\/uhlov\u00fa min\u00fatu)<\/span><\/th>\n		Ct \u2014 2-stup\u0148ov\u00e1
\n(N\u00b7m\/uhlov\u00fa min\u00fatu)<\/span><\/th>\n		Maxim\u00e1lny kr\u00fatiaci moment
\n(N\u00b7m)<\/span><\/th>\n		Trieda Ct<\/th>\n<\/tr>\n<\/thead>\n
EP-ZDE \/ EP-ZDF<\/a><\/td>\n40 mm<\/td>\n0.7<\/td>\n\u2014<\/td>\n6<\/td>\n\u013dahk\u00e9<\/td>\n<\/tr>\n
EP-ZDE \/ EP-ZDF<\/td>\n60 mm<\/td>\n1.8<\/td>\n\u2014<\/td>\n16<\/td>\n\u0160tandard<\/td>\n<\/tr>\n
EP-ZDE \/ EP-ZDF<\/td>\n80 mm<\/td>\n4.5<\/td>\n\u2014<\/td>\n50<\/td>\n\u0160tandard<\/td>\n<\/tr>\n
EP-ZDE \/ EP-ZDF<\/td>\n120 mm<\/td>\n12<\/td>\n\u2014<\/td>\n110<\/td>\nMierne<\/td>\n<\/tr>\n
EP-ZDE \/ EP-ZDF<\/td>\n160 mm<\/td>\n38<\/td>\n\u2014<\/td>\n450<\/td>\n\u0160tandardn\u00e1-vysok\u00e1 \u2605<\/td>\n<\/tr>\n
EP-ZDWE \/ ZDWF<\/a><\/td>\n60\u2013160 mm<\/td>\n1,5 \u2013 38<\/td>\n2,5 \u2013 43<\/td>\n16 \u2013 450<\/td>\nRovnak\u00e9 ako ZDE pod\u013ea r\u00e1mu<\/td>\n<\/tr>\n
EP-ZDS<\/a><\/td>\n115 mm<\/td>\n20<\/td>\n22<\/td>\n210<\/td>\nVysok\u00e1<\/td>\n<\/tr>\n
EP-ZDS<\/td>\n142 mm<\/td>\n44<\/td>\n46<\/td>\n910<\/td>\nVysok\u00e1 (1,16 \u00d7 ZDE-160)<\/td>\n<\/tr>\n
EP-ZDS<\/td>\n190 mm<\/td>\n130<\/td>\n140<\/td>\n1,800<\/td>\nNajvy\u0161\u0161ia (3,4\u00d7 ZDE-160) \u2605\u2605<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u2605 EP-ZDS-115 Ct (20 N\u00b7m\/arcmin) je ni\u017e\u0161\u00ed ako EP-ZDE-160 (38 N\u00b7m\/arcmin), preto\u017ee ZDS-115 m\u00e1 men\u0161\u00ed r\u00e1m \u2013 porovn\u00e1vajte v r\u00e1mci triedy r\u00e1mu, nie medzi nimi. \u2605\u2605 EP-ZDS-190 dosahuje 130 N\u00b7m\/arcmin v\u010faka v\u00e4\u010d\u0161iemu v\u00fdstupn\u00e9mu hriade\u013eu (\u03a655h7 oproti \u03a640h7), tuh\u0161iemu nosi\u010du plan\u00e9t a predp\u00e4t\u00fdm v\u00fdstupn\u00fdm lo\u017eisk\u00e1m. 2-stup\u0148ov\u00fd Ct prevy\u0161uje 1-stup\u0148ov\u00fd, preto\u017ee pr\u00eddavn\u00e9 stupne plan\u00e9t zvy\u0161uj\u00fa tuhos\u0165 nosi\u010da v kon\u0161trukcii ZDS.<\/p>\n<\/section>\n

<\/p>\n

\"Presn\u00e1<\/p>\n
Rad EP-ZDS dosahuje torzn\u00fa tuhos\u0165 a\u017e 130 N\u00b7m\/obl\u00fakov\u00e1 min\u00fata (1-stup\u0148ov\u00fd) v\u010faka v\u00e4\u010d\u0161iemu priemeru v\u00fdstupn\u00e9ho hriade\u013ea, tuh\u0161ej geometrii un\u00e1\u0161a\u010da plan\u00e9t a predp\u00e4t\u00fdm v\u00fdstupn\u00fdm lo\u017eisk\u00e1m \u2013 \u010d\u00edm poskytuje 3,4\u00d7 lep\u0161iu dynamick\u00fa presnos\u0165 ako EP-ZDE-160 pri rovnakom aplikovanom kr\u00fatiacom momente. Porovnajte \u0161pecifik\u00e1cie plan\u00e9tovej prevodovky \u2192<\/a><\/div>\n<\/div>\n

<\/p>\n

\n

Bod kr\u00ed\u017eenia \u2013 kde torzn\u00e1 deform\u00e1cia prevy\u0161uje sp\u00e4tn\u00fd r\u00e1z ako dominantn\u00e1 chyba<\/h2>\n

Pri n\u00edzkych \u00farovniach kr\u00fatiaceho momentu dominuje v\u00f4\u013ea v celkovej uhlovej chybe, preto\u017ee elastick\u00e1 v\u00fdchylka je mal\u00e1. S rast\u00facim aplikovan\u00fdm kr\u00fatiacim momentom rastie elastick\u00e1 v\u00fdchylka line\u00e1rne s T\/Ct, zatia\u013e \u010do v\u00f4\u013ea zost\u00e1va kon\u0161tantn\u00e1. Existuje prekr\u00ed\u017een\u00fd kr\u00fatiaci moment, za ktor\u00fdm sa elastick\u00e1 v\u00fdchylka st\u00e1va v\u00e4\u010d\u0161ou z dvoch zdrojov chyby \u2013 a tento bod prekr\u00ed\u017eenia sa medzi s\u00e9riami EP-ZDE a EP-ZDS dramaticky l\u00ed\u0161i.<\/p>\n

Toto je v\u00fdpo\u010det, ktor\u00fd v\u00e4\u010d\u0161ina v\u00fdberov\u00fdch pr\u00edru\u010diek \u00faplne vynech\u00e1va \u2013 a z\u00e1sadne men\u00ed sp\u00f4sob, ak\u00fdm by sa mala torzn\u00e1 tuhos\u0165 v\u00e1\u017ei\u0165 v procese \u0161pecifik\u00e1cie pre aplik\u00e1cie s vysok\u00fdm kr\u00fatiacim momentom.<\/p>\n

\n
Kr\u00fatiaci moment: Ke\u010f \u03b8_elastick\u00fd = \u03b8_v\u00f4\u013ea<\/div>\n
\n
Podmienka kr\u00ed\u017eenia: T_kr\u00ed\u017eenie = BL \u00d7 Ct<\/div>\n
EP-ZDE-160 (BL=8 arcmin, Ct=38): T_cross = 8 \u00d7 38 = 304 N\u00b7m<\/strong><\/div>\n
EP-ZDS-190 (BL=8 obl\u00fakov\u00fdch min\u00fat, Ct=130): T_cross = 8 \u00d7 130 = 1 040 N\u00b7m<\/strong><\/div>\n
Nad T_crossover: torzn\u00e1 deform\u00e1cia je V\u00c4\u010c\u0160\u00cdM zdrojom chyby \u2013 nie v\u00f4\u013ea.<\/div>\n<\/div>\n

EP-ZDE-160 prekra\u010duje hranicu pri 304 N\u00b7m \u2013 \u010do je v r\u00e1mci jeho menovit\u00e9ho rozsahu 450 N\u00b7m. V hornej polovici rozsahu kr\u00fatiaceho momentu (304 \u2013 450 N\u00b7m) je elastick\u00e1 v\u00fdchylka u\u017e v\u00e4\u010d\u0161ia ako v\u00f4\u013ea. Z\u00fa\u017eenie \u0161pecifik\u00e1cie v\u00f4le z 8 obl\u00fakov\u00fdch min\u00fat na 3 obl\u00fakov\u00e9 min\u00faty v tomto rozsahu kr\u00fatiaceho momentu u\u0161etr\u00ed iba 5 obl\u00fakov\u00fdch min\u00fat m\u0155tveho p\u00e1sma, zatia\u013e \u010do elastick\u00e1 v\u00fdchylka pri 380 N\u00b7m je 10 obl\u00fakov\u00fdch min\u00fat \u2013 chyba, ktor\u00fa u\u017e\u0161ia v\u00f4\u013ea v\u00f4bec nedok\u00e1\u017ee vyrie\u0161i\u0165. EP-ZDS-190 neprekro\u010d\u00ed hranicu sk\u00f4r ako 1 040 N\u00b7m \u2013 \u010do je za jeho menovit\u00fdm 1-stup\u0148ov\u00fdm rozsahom \u2013 tak\u017ee v\u00f4\u013ea zost\u00e1va dominantnou chybou pre cel\u00fd jeho prev\u00e1dzkov\u00fd rozsah, a preto EP-ZDS dosahuje lep\u0161iu celkov\u00fa presnos\u0165 ako EP-ZDE, a to aj pri rovnakej \u0161pecifik\u00e1cii v\u00f4le (<8 obl\u00fakov\u00fdch min\u00fat).<\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n\n\n\n
Pou\u017eit\u00fd kr\u00fatiaci moment<\/th>\nZDE-160
\nV\u00f4\u013ea (uhl. min.)<\/th>\n		ZDE-160
\nElastick\u00e9 \u03b8 (uhl. min.)<\/th>\n		ZDE-160
\nCelkom (uhl. min\u00fata)<\/th>\n		ZDS-190
\nElastick\u00e9 \u03b8 (uhl. min.)<\/th>\n		ZDS-190
\nCelkom (uhl. min\u00fata)<\/th>\n		Zv\u00fd\u0161enie presnosti<\/th>\n<\/tr>\n<\/thead>\n
50 N\u00b7m<\/td>\n8.0<\/td>\n1.3<\/td>\n9.3<\/td>\n0.4<\/td>\n8.4<\/td>\n1,1\u00d7 lep\u0161ie<\/td>\n<\/tr>\n
100 N\u00b7m<\/td>\n8.0<\/td>\n2.6<\/td>\n10.6<\/td>\n0.8<\/td>\n8.8<\/td>\n1,2\u00d7 lep\u0161ie<\/td>\n<\/tr>\n
200 N\u00b7m<\/td>\n8.0<\/td>\n5.3<\/td>\n13.3<\/td>\n1.5<\/td>\n9.5<\/td>\n1,4\u00d7 lep\u0161ie<\/td>\n<\/tr>\n
304 N\u00b7m \u2190 Kr\u00ed\u017eenie<\/td>\n8.0<\/td>\n8,0 \u2190 elastick\u00fd = BL<\/td>\n16.0<\/td>\n2.3<\/td>\n10.3<\/td>\n1,6\u00d7 lep\u0161ie<\/td>\n<\/tr>\n
380 N\u00b7m<\/td>\n8.0<\/td>\n10,0 > BL<\/td>\n18.0<\/td>\n2.9<\/td>\n10.9<\/td>\n1,7\u00d7 lep\u0161ie<\/td>\n<\/tr>\n
800 N\u00b7m<\/td>\n8.0<\/td>\n21.1<\/td>\n29.1<\/td>\n6.2<\/td>\n14.2<\/td>\n2,0\u00d7 lep\u0161ie<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Obe jednotky s\u00fa \u0161pecifikovan\u00e9 pre v\u00f4\u013eu <8 obl\u00fakov\u00fdch min\u00fat. Ct: ZDE-160 = 38 N\u00b7m\/obl\u00fakov\u00e1 min\u00fata; ZDS-190 = 130 N\u00b7m\/obl\u00fakov\u00e1 min\u00fata. \u03b8_elastic = T\/Ct. Celkom = v\u00f4\u013ea + pru\u017enos\u0165. Zlep\u0161enie ZDS-190 rastie s kr\u00fatiacim momentom, preto\u017ee Ct je jedin\u00fd rozli\u0161ovac\u00ed faktor \u2013 v\u00f4\u013ea je pre obe rovnak\u00e1.<\/p>\n<\/section>\n

<\/p>\n

\n

Z uhlov\u00fdch min\u00fat na milimetre \u2013 chyba dynamick\u00e9ho polohovania pri va\u0161om polomere za\u0165a\u017eenia<\/h2>\n

Ako je uveden\u00e9 v pr\u00edru\u010dke o v\u00f4li, prevod z uhlovej chyby na line\u00e1rnu chybu pri \u0161pecifickom polomere za\u0165a\u017eenia je: E_linear = R \u00d7 tan(\u03b8\/60 \u00d7 \u03c0\/180). Nasleduj\u00faca tabu\u013eka aplikuje tento prevod iba na elastick\u00fa zlo\u017eku vych\u00fdlenia \u2013 zobrazuje milimetrov\u00fa chybu dynamick\u00e9ho polohovania z torznej poddajnosti pri \u0161tyroch reprezentat\u00edvnych polomeroch za\u0165a\u017eenia. Toto je chyba, ktor\u00fa presnej\u0161ia \u0161pecifik\u00e1cia v\u00f4le nedok\u00e1\u017ee vyrie\u0161i\u0165.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Kr\u00fatiaci moment<\/th>\nElastick\u00e1 chyba ZDE-160 (Ct=38)<\/th>\nElastick\u00e1 chyba ZDS-190 (Ct=130)<\/th>\nVylep\u0161enie ZDS<\/th>\n<\/tr>\n
Pou\u017eit\u00fd kr\u00fatiaci moment<\/th>\nR=100 mm<\/th>\nR=300 mm<\/th>\nR=100 mm<\/th>\nR=300 mm<\/th>\npri R=300 mm<\/th>\n<\/tr>\n<\/thead>\n
100 N\u00b7m<\/td>\n0,077 mm<\/td>\n0,230 mm<\/td>\n0,022 mm<\/td>\n0,067 mm<\/td>\n3,4\u00d7 lep\u0161ie<\/td>\n<\/tr>\n
200 N\u00b7m<\/td>\n0,153 mm<\/td>\n0,459 mm<\/td>\n0,045 mm<\/td>\n0,134 mm<\/td>\n3,4\u00d7 lep\u0161ie<\/td>\n<\/tr>\n
380 N\u00b7m (\u0165a\u017ek\u00fd rez)<\/td>\n0,291 mm<\/td>\n0,873 mm<\/td>\n0,085 mm<\/td>\n0,254 mm<\/td>\n3,4\u00d7 lep\u0161ie<\/td>\n<\/tr>\n
800 N\u00b7m<\/td>\n0,613 mm<\/td>\n1,839 mm<\/td>\n0,179 mm<\/td>\n0,538 mm<\/td>\n3,4\u00d7 lep\u0161ie<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n

Kritick\u00fd poh\u013ead na \u0161pecifik\u00e1ciu oto\u010dn\u00e9ho stola CNC:<\/strong> Oto\u010dn\u00fd st\u00f4l CNC s osou B s polomerom uchytenia obrobku 300 mm a \u0161pi\u010dkov\u00fdm rezn\u00fdm kr\u00fatiacim momentom 380 N\u00b7m sa nahromad\u00ed Chyba elastick\u00e9ho polohovania 0,873 mm<\/strong> iba z torznej poddajnosti, ak je vybaven\u00fd EP-ZDE-160. T\u00e1to chyba sa men\u00ed s ka\u017edou zmenou reznej sily \u2013 je dynamick\u00e1, nie statick\u00e1 a sp\u00e4tn\u00e1 v\u00e4zba serva ju nem\u00f4\u017ee kompenzova\u0165, preto\u017ee k\u00f3dova\u010d motora meria polohu motora, nie polohu n\u00e1stroja. Ten ist\u00fd st\u00f4l vybaven\u00fd EP-ZDS-190 m\u00e1 iba 0,254 mm<\/strong> elastickej chyby za rovnak\u00fdch rezn\u00fdch podmienok \u2013 3,4-n\u00e1sobn\u00e9 zlep\u0161enie, ktor\u00e9 sa priamo premieta do u\u017e\u0161\u00edch toleranci\u00ed dielov.<\/p>\n<\/div>\n<\/section>\n

<\/p>\n

\"Prev\u00e1dzkov\u00e1<\/p>\n
Pri p\u00f4soben\u00ed kr\u00fatiaceho momentu doch\u00e1dza k elastickej deform\u00e1cii na troch miestach plan\u00e9tovej prevodovky: na bokoch zubov plan\u00e9tov\u00e9ho kolesa (Hertzova kontaktn\u00e1 deform\u00e1cia), v z\u00e1bere centr\u00e1lneho kolesa a v kon\u0161trukcii un\u00e1\u0161a\u010da plan\u00e9t. Torzn\u00e1 tuhos\u0165 Ct je s\u00fahrnn\u00e1 miera v\u0161etk\u00fdch troch deform\u00e1ci\u00ed dohromady \u2013 vy\u0161\u0161ia Ct znamen\u00e1 men\u0161ie celkov\u00e9 elastick\u00e9 natiahnutie pri rovnakom kr\u00fatiacom momente.<\/div>\n<\/div>\n

<\/p>\n

\n

Torzn\u00e1 tuhos\u0165 a rezonan\u010dn\u00e1 frekvencia \u2013 d\u00f4sledky ladenia serva<\/h2>\n

Torzn\u00e1 tuhos\u0165 presnej plan\u00e9tovej prevodovky priamo ur\u010duje mechanick\u00fa rezonan\u010dn\u00fa frekvenciu syst\u00e9mu prevodovka-za\u0165a\u017eenie. T\u00e1to rezonan\u010dn\u00e1 frekvencia ur\u010duje horn\u00fa hranicu \u0161\u00edrky p\u00e1sma r\u00fdchlostnej slu\u010dky serva \u2013 r\u00fdchlos\u0165, akou dok\u00e1\u017ee regul\u00e1tor reagova\u0165 na chyby polohy bez vyvolania \u0161truktur\u00e1lnej rezonancie. Prevodovka s vy\u0161\u0161\u00edm Ct zvy\u0161uje rezonan\u010dn\u00fa frekvenciu, \u010do umo\u017e\u0148uje agres\u00edvnej\u0161ie ladenie serva a t\u00fdm aj lep\u0161\u00ed dynamick\u00fd v\u00fdkon polohovania.<\/p>\n

\n
Vzorec pre rezonan\u010dn\u00fa frekvenciu<\/div>\n
\n
f_rezonancia = (1\/2\u03c0) \u00d7 \u221a(v\u00fdstupn\u00fd Ct[N\u00b7m\/rad] \/ za\u0165a\u017eenie J[kg\u00b7m\u00b2])<\/div>\n
Ct[N\u00b7m\/rad] = Ct[N\u00b7m\/arcmin] \u00d7 (60 \u00d7 180 \/ \u03c0) = Ct[N\u00b7m\/arcmin] \u00d7 3 438<\/div>\n
Cie\u013e: f_rezonancia > 3\u00d7 \u0161\u00edrka p\u00e1sma riadenia serva (typicky 50 \u2013 150 Hz pre osi serva)<\/div>\n<\/div>\n<\/div>\n
\n\n\n\n\n\n\n\n\n
Prevodovka<\/th>\nCt (N\u00b7m\/uhlov\u00fa min\u00fatu)<\/th>\nrezonan\u010dn\u00fd
\nCNC st\u00f4l J=5 kg\u00b7m\u00b2<\/span><\/th>\n		rezonan\u010dn\u00fd
\nRobot J2 J=97 kg\u00b7m\u00b2<\/span><\/th>\n		Limit Kv serva<\/th>\nPos\u00fadenie ladenia<\/th>\n<\/tr>\n<\/thead>\n
ZDE-160<\/td>\n38<\/td>\n25,7 Hz<\/td>\n5,8 Hz<\/td>\nObmedzen\u00e9<\/td>\nCNC st\u00f4l: OK. Robot J2: pod servopohonom \u2013 riziko kmitania<\/td>\n<\/tr>\n
ZDS-115<\/td>\n20<\/td>\n18,7 Hz<\/td>\n4,2 Hz<\/td>\nN\u00edzka<\/td>\nNi\u017e\u0161\u00ed Ct ako ZDE-160 \u2013 spr\u00e1vne len pre aplik\u00e1cie s men\u0161\u00edm r\u00e1mom, nie pre priamu moderniz\u00e1ciu<\/td>\n<\/tr>\n
ZDS-142<\/td>\n44<\/td>\n27,7 Hz<\/td>\n6,3 Hz<\/td>\nDobr\u00e9<\/td>\nMierne zlep\u0161enie oproti ZDE-160 \u2013 preferovan\u00e9 pre vysokoz\u00e1\u0165a\u017eov\u00e9 CNC a roboty J2\/J3<\/td>\n<\/tr>\n
ZDS-190<\/td>\n130<\/td>\n47,6 Hz<\/td>\n10,8 Hz<\/td>\nNajvy\u0161\u0161ia<\/td>\nNajlep\u0161ia dynamick\u00e1 odozva \u2013 odpor\u00fa\u010dan\u00e9 pre ve\u013ek\u00e9 CNC stoly a roboty J1\/J2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n
\n
\u26a0 D\u00f4le\u017eit\u00e9: ZDS-115 m\u00e1 ni\u017e\u0161iu hodnotu Ct ako ZDE-160<\/div>\n

EP-ZDS-115 (Ct=20 N\u00b7m\/arcmin) m\u00e1 ni\u017e\u0161iu torzn\u00fa tuhos\u0165 ako EP-ZDE-160 (Ct=38 N\u00b7m\/arcmin), preto\u017ee ide o men\u0161\u00ed r\u00e1m. Nepredpokladajte, \u017ee \u201eZDS = tuh\u0161\u00ed ako ZDE\u201c \u2013 porovnanie je platn\u00e9 iba v r\u00e1mci rovnakej alebo porovnate\u013enej ve\u013ekosti r\u00e1mu. ZDS-142 (44) mierne prevy\u0161uje ZDE-160 (38). ZDS-190 (130) ho v\u00fdrazne prevy\u0161uje. Aby s\u00e9ria ZDS poskytovala svoju v\u00fdhodu v tuhosti, aplik\u00e1cia mus\u00ed vy\u017eadova\u0165 rozsah r\u00e1mov 115 \u2013 190 mm, ktor\u00fd ZDS pokr\u00fdva.<\/p>\n<\/div>\n

\n
\u2705 Pre\u010do m\u00e1 2-stup\u0148ov\u00fd ZDS mierne vy\u0161\u0161\u00ed Ct ako 1-stup\u0148ov\u00fd<\/div>\n

Protiintuit\u00edvne, 2-stup\u0148ov\u00fd Ct EP-ZDS prevy\u0161uje 1-stup\u0148ov\u00fd (ZDS-190: 140 oproti 130 N\u00b7m\/arcmin). Je to preto, \u017ee dodato\u010dn\u00fd plan\u00e9tov\u00fd stupe\u0148 v ZDS prispieva k \u0161truktur\u00e1lnej tuhosti zostavy un\u00e1\u0161a\u010da plan\u00e9t \u2013 un\u00e1\u0161a\u010d sa st\u00e1va efekt\u00edvne tuh\u0161\u00edm, ke\u010f je sekund\u00e1rny stupe\u0148 upnut\u00fd na mieste. Toto je \u0161pecifick\u00e9 pre kon\u0161trukciu ZDS a neplat\u00ed pre s\u00e9riu ZDE, kde viacstup\u0148ov\u00fd syst\u00e9m prid\u00e1va sk\u00f4r poddajnos\u0165 ako tuhos\u0165.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

Kedy \u0161pecifikova\u0165 torzn\u00fa tuhos\u0165 ako prim\u00e1rne krit\u00e9rium v\u00fdberu<\/h2>\n

Torzn\u00e1 tuhos\u0165 by mala by\u0165 prim\u00e1rnou \u0161pecifik\u00e1ciou presnosti \u2013 pred v\u00f4\u013eou \u2013 v \u0161tyroch aplika\u010dn\u00fdch kateg\u00f3ri\u00e1ch. Vo v\u0161etk\u00fdch ostatn\u00fdch kateg\u00f3ri\u00e1ch je posta\u010duj\u00faca samotn\u00e1 \u0161pecifik\u00e1cia v\u00f4le a s\u00e9ria EP-ZDE\/ZDF poskytuje spr\u00e1vny v\u00fdkon pri ni\u017e\u0161\u00edch n\u00e1kladoch.<\/p>\n

\n
\n
\u2460 CNC oto\u010dn\u00e9 stoly pre vysok\u00e9 za\u0165a\u017eenie (os B\/C)<\/div>\n

\u0160pi\u010dkov\u00e9 rezn\u00e9 kr\u00fatiace momenty 200 \u2013 800 N\u00b7m vo ve\u013ek\u00fdch horizont\u00e1lnych obr\u00e1bac\u00edch centr\u00e1ch. Pri t\u00fdchto kr\u00fatiacim momentoch dominuje elastick\u00e1 deform\u00e1cia celkovej uhlovej chybe. Rozmerov\u00e1 tolerancia s\u00fa\u010diastky na ve\u013ek\u00fdch obrobkoch (kruhovitos\u0165 otvoru, kolmos\u0165 \u010dela) priamo odr\u00e1\u017ea dynamick\u00fa tuhos\u0165 prevodovky. \u0160pecifikujte: EP-ZDS-142 alebo EP-ZDS-190 pod\u013ea triedy kr\u00fatiaceho momentu.<\/p>\n<\/div>\n

\n
\u2461 Spoje priemyseln\u00e9ho robota J1 a J2<\/div>\n

\u0160truktur\u00e1lne vysok\u00fd pomer zotrva\u010dnosti na J1\/J2 znamen\u00e1, \u017ee \u0161\u00edrka p\u00e1sma serva mus\u00ed by\u0165 obmedzen\u00e1, aby sa predi\u0161lo rezonancii. Vy\u0161\u0161ia hodnota Ct zvy\u0161uje rezonan\u010dn\u00fa frekvenciu, \u010do umo\u017e\u0148uje \u0161ir\u0161iu \u0161\u00edrku p\u00e1sma serva a lep\u0161iu presnos\u0165 sledovania dr\u00e1hy. Okrem toho, maxim\u00e1lne dynamick\u00e9 kr\u00fatiace momenty po\u010das zr\u00fdch\u013eovania ve\u013ek\u00fdch robotick\u00fdch ramien prekra\u010duj\u00fa bod prekro\u010denia ZDE-160.<\/p>\n<\/div>\n

\n
\u2462 Hlavn\u00e9 pohonn\u00e9 osi servolisu<\/div>\n

Oper\u00e1cie tv\u00e1rnenia n\u00e1razom vystavuj\u00fa prevodovku impulzn\u00fdm kr\u00fatiacim momentom 2\u20133-n\u00e1sobku trvalej menovitej hodnoty v momente kontaktu s dielom. Pri impulznom za\u0165a\u017een\u00ed je elastick\u00e9 vych\u00fdlenie okam\u017eit\u00e9 a poloha hrotu n\u00e1stroja sa odchy\u013euje od po\u017eadovanej polohy. Vy\u0161\u0161ia hodnota Ct zni\u017euje t\u00fato odch\u00fdlku a zlep\u0161uje rozmerov\u00fa konzistenciu tv\u00e1rnenia lisovan\u00edm. Pre pohony lisov je spr\u00e1vny pr\u00edstup servisn\u00fd faktor 2,5+ plus \u0161pecifik\u00e1cia tuhosti.<\/p>\n<\/div>\n

\n
\u2463 Port\u00e1lov\u00e9 osi s vysokor\u00fdchlostn\u00fdm obr\u00e1ten\u00edm smeru<\/div>\n

Port\u00e1ly na laserov\u00e9 rezanie a vysokor\u00fdchlostn\u00e9 syst\u00e9my typu \u201epick-and-place\u201c vykon\u00e1vaj\u00fa zmeny smeru 50 \u2013 200-kr\u00e1t za min\u00fatu so zna\u010dnou zotrva\u010dnos\u0165ou os\u00ed. Pri ka\u017edej zmene smeru mus\u00ed prevodovka eliminova\u0165 m\u0155tvy p\u00e1smo v\u00f4le a s\u00fa\u010dasne absorbova\u0165 prechodov\u00fd kr\u00fatiaci moment z spoma\u013eovania a op\u00e4tovn\u00e9ho zr\u00fdch\u013eovania z\u00e1\u0165a\u017ee. Tuh\u0161ia prevodovka r\u00fdchlej\u0161ie tlm\u00ed prechodov\u00fd kr\u00fatiaci moment a zni\u017euje chybu polohy po\u010das intervalu zmeny smeru. Pre port\u00e1ly pracuj\u00face nad 3 m\/s s po\u017eiadavkami na polohovanie pod 0,1 mm zv\u00e1\u017ete EP-ZDS-142 aj pri miernych \u00farovniach kr\u00fatiaceho momentu.<\/p>\n<\/div>\n<\/div>\n

\n

Ke\u010f je EP-ZDE\/ZDF pri Ct=38 N\u00b7m\/arcmin posta\u010duj\u00face:<\/strong> Pre aplik\u00e1cie, kde je \u0161pi\u010dkov\u00fd aplikovan\u00fd kr\u00fatiaci moment pod bodom prekr\u00ed\u017eenia 304 N\u00b7m pre ZDE-160 \u2013 k\u013aby \u013eahk\u00fdch robotov (J3\u2013J6), servo osi baliacich syst\u00e9mov, hnacie koles\u00e1 AGV, pohony sol\u00e1rnych sledova\u010dov a index\u00e1tory dopravn\u00edkov \u2013 je v\u00f4\u013ea dominantn\u00fdm parametrom presnosti a EP-ZDE\/ZDF je spr\u00e1vnou a n\u00e1kladovo efekt\u00edvnej\u0161ou vo\u013ebou. Vy\u0161\u0161\u00ed Ct ZDS nie je potrebn\u00fd a dodato\u010dn\u00e9 n\u00e1klady nie s\u00fa od\u00f4vodnen\u00e9 \u017eiadnym merate\u013en\u00fdm zlep\u0161en\u00edm v\u00fdkonu aplik\u00e1cie.<\/p>\n<\/div>\n<\/section>\n

<\/p>\n

\"Kon\u0161truk\u010dn\u00e9<\/p>\n
Vy\u0161\u0161ia torzn\u00e1 tuhos\u0165 s\u00e9rie EP-ZDS v porovnan\u00ed s EP-ZDE je dosiahnut\u00e1 tromi \u0161truktur\u00e1lnymi zmenami: v\u00e4\u010d\u0161\u00edm v\u00fdstupn\u00fdm hriade\u013eom (\u03a655h7 oproti \u03a640h7 na najv\u00e4\u010d\u0161om r\u00e1me), tuh\u0161\u00edm un\u00e1\u0161a\u010dom plan\u00e9t so zv\u00e4\u010d\u0161enou hr\u00fabkou steny a predp\u00e4t\u00fdmi v\u00fdstupn\u00fdmi lo\u017eiskami, ktor\u00e9 eliminuj\u00fa v\u00f4\u013eu v podpore v\u00fdstupn\u00e9ho hriade\u013ea. V\u0161etky tri zmeny prispievaj\u00fa k 3,4-n\u00e1sobn\u00e9mu zlep\u0161eniu torzn\u00e9ho momentu Ct (130 oproti 38 N\u00b7m\/arcmin) s\u00e9rie ZDS-190 v porovnan\u00ed so ZDE-160.<\/div>\n<\/div>\n

<\/p>\n

\n

Praktick\u00e1 trojkrokov\u00e1 met\u00f3da na zahrnutie torznej tuhosti do v\u00e1\u0161ho v\u00fdberu<\/h2>\n

V\u00e4\u010d\u0161ina in\u017einierov uplat\u0148uje prev\u00e1dzkov\u00fd faktor a stupe\u0148 v\u00f4le, ale torzn\u00fa tuhos\u0165 z procesu v\u00fdberu \u00faplne vynech\u00e1va. Nasleduj\u00faca trojkrokov\u00e1 met\u00f3da integruje Ct do \u0161tandardn\u00e9ho p\u00e4\u0165krokov\u00e9ho procesu v\u00fdberu bez v\u00fdrazn\u00e9ho zv\u00fd\u0161enia zlo\u017eitosti.<\/p>\n

\n
\n
1<\/div>\n
\n
Vypo\u010d\u00edtajte kr\u00fatiaci moment kr\u00ed\u017eenia pre va\u0161u kandid\u00e1tsku prevodovku<\/div>\n

T_crossover = BL \u00d7 Ct. Pre EP-ZDE-160: 8 \u00d7 38 = 304 N\u00b7m. Porovnajte to so skuto\u010dn\u00fdm \u0161pi\u010dkov\u00fdm prev\u00e1dzkov\u00fdm kr\u00fatiacim momentom (po uplatnen\u00ed servisn\u00e9ho faktora). Ak je \u0161pi\u010dkov\u00fd kr\u00fatiaci moment > T_crossover, torzn\u00e1 tuhos\u0165 je u\u017e dominantn\u00fdm limitom presnosti a Ct sa mus\u00ed zv\u00fd\u0161i\u0165, aby sa zlep\u0161il v\u00fdkon polohovania \u2013 pr\u00edsnej\u0161ia \u0161pecifik\u00e1cia v\u00f4le nepom\u00f4\u017ee.<\/p>\n

Ak je T_peak_operating > T_crossover \u2192 zadajte vy\u0161\u0161iu hodnotu Ct (s\u00e9ria ZDS)<\/div>\n<\/div>\n<\/div>\n
\n
2<\/div>\n
\n
Vypo\u010d\u00edtajte prijate\u013en\u00e9 elastick\u00e9 priehyby z va\u0161ej rozmerovej tolerancie<\/div>\n

Ur\u010dte toleranciu obr\u00e1bania alebo polohovania (napr. \u00b10,1 mm pri va\u0161om \u0161pecifickom polomere za\u0165a\u017eenia R). Vypo\u010d\u00edtajte maxim\u00e1lnu akceptovate\u013en\u00fa elastick\u00fa deform\u00e1ciu: \u03b8_max = arctan(tolerancia \/ R) v arcmin. Potom vypo\u010d\u00edtajte po\u017eadovan\u00fd Ct: Ct_required = T_peak \/ \u03b8_max. Vyberte jednotku s\u00e9rie EP s Ct \u2265 Ct_required.<\/p>\n

Pr\u00edklad: \u00b10,3 mm pri R=300 mm, T_peak=380 Nm
\n\u03b8_max = arctan(0,3\/300) \u00d7 3438 = 3,44 arcmin
\nCt_required = 380\/3,44 = 110 N\u00b7m\/arcmin \u2192 \u0161pecifikujte ZDS-190 (Ct=130)<\/div>\n<\/div>\n<\/div>\n
\n
3<\/div>\n
\n
Overte, \u010di je rezonan\u010dn\u00e1 frekvencia nad \u0161\u00edrkou p\u00e1sma servoriadenia<\/div>\n

Vypo\u010d\u00edtajte f_rezonancia = (1\/2\u03c0) \u00d7 \u221a(Ct[N\u00b7m\/rad] \/ J_za\u0165a\u017eenie). Porovnajte so \u0161\u00edrkou p\u00e1sma riadenia v\u00e1\u0161ho serva. Z bezpe\u010dnostn\u00fdch d\u00f4vodov by f_rezonancia mala by\u0165 aspo\u0148 3\u00d7 zosilnenie frekvencie Kv serva. Ak je f_rezonancia ni\u017e\u0161ia ako 3\u00d7 \u0161\u00edrka p\u00e1sma serva, a to aj s najtuh\u0161ou pr\u00edslu\u0161nou jednotkou s\u00e9rie EP, zn\u00ed\u017ete \u0161\u00edrku p\u00e1sma serva (akceptujte pomal\u0161iu odozvu) alebo zv\u00e1\u017ete zn\u00ed\u017eenie zotrva\u010dnosti z\u00e1\u0165a\u017ee na v\u00fdstupe.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n


\n<\/span><\/p>\n

\n
\n
\n
Potrebujete anal\u00fdzu torznej tuhosti pre va\u0161u aplik\u00e1ciu?<\/div>\n

Spolo\u010dnos\u0165 Korea Ever-Power poskytuje in\u017einierstvo aplik\u00e1ci\u00ed a poskytuje v\u00fdpo\u010det kr\u00ed\u017eov\u00e9ho kr\u00fatiaceho momentu, anal\u00fdzu po\u017eiadaviek Ct a overenie rezonan\u010dnej frekvencie pre \u0161pecifick\u00e9 aplik\u00e1cie \u2013 vr\u00e1tane vstupov rozmerovej tolerancie a polomeru za\u0165a\u017eenia. Zadajte svoj \u0161pi\u010dkov\u00fd prev\u00e1dzkov\u00fd kr\u00fatiaci moment, polomer za\u0165a\u017eenia a po\u017eiadavky na rozmerov\u00fa presnos\u0165 a z\u00edskajte kompletn\u00e9 odpor\u00fa\u010danie \u0161pecifik\u00e1cie tuhosti v k\u00f3rej\u010dine alebo angli\u010dtine.<\/p>\n<\/div>\n

Vy\u017eiada\u0165 si anal\u00fdzu tuhosti \u2192<\/a><\/p>\n
sales@planet\u00e1rne-prevodovky.com<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n
S\u00e9ria EP \u2013 \u0160pecifik\u00e1cie torznej tuhosti<\/div>\n
\n
\n
S\u00e9ria EP-ZDS<\/div>\n
Ct 20\u2013130 N\u00b7m\/uhlov\u00fa min\u00fatu<\/strong> \u00b7 IP65 \u00b7 1 800 N\u00b7m \u00b7 kr\u00ed\u017eov\u00fd moment 1 040 N\u00b7m pre ZDS-190 \u2014 torzn\u00e1 tuhos\u0165 nikdy neobmedzuje presnos\u0165 v r\u00e1mci menovit\u00e9ho rozsahu<\/div>\n

Zobrazi\u0165 \u0161pecifik\u00e1cie \u2192<\/a><\/p>\n<\/div>\n

\n
S\u00e9ria EP-ZDE<\/div>\n
Ct 0,7\u201338 N\u00b7m\/uhlov\u00fa min\u00fatu<\/strong> \u00b7 prekr\u00ed\u017eenie kr\u00fatiaceho momentu pri 304 N\u00b7m (ZDE-160) \u00b7 spr\u00e1vna vo\u013eba pre kr\u00fatiaci moment pod 300 N\u00b7m, kde dominuje v\u00f4\u013ea \u2013 v\u00e4\u010d\u0161ina aplik\u00e1ci\u00ed automatiz\u00e1cie servopohonov<\/div>\n

Zobrazi\u0165 \u0161pecifik\u00e1cie \u2192<\/a><\/p>\n<\/div>\n

\n
S\u00e9ria EP-ZDF<\/div>\n
Rovnak\u00fd Ct ako EP-ZDE pod\u013ea r\u00e1mu \u00b7 \u0161tvorcov\u00e1 pr\u00edruba pre kon\u0161trukcie montovan\u00e9 na dosku \u00b7 rovnak\u00fd kr\u00fatiaci moment a tuhos\u0165 \u2014 zvo\u013ete ZDF, ak nie je k dispoz\u00edcii obr\u00e1banie otvorov<\/div>\n

Zobrazi\u0165 \u0161pecifik\u00e1cie \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

Prezrie\u0165 si v\u0161etk\u00fdch 5 s\u00e9ri\u00ed EP \u2192<\/a><\/div>\n<\/div>\n<\/section>\n

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

Korea Ever-Power Technical Deep-Dive \u00b7 Dynamics Planetary Gearbox Torsional Stiffness Explained \u2014 Why Ct Matters More Than Backlash at High Torque Every precision planetary gearbox datasheet lists backlash in arcminutes. Fewer than 20% list torsional stiffness. Yet under significant applied torque \u2014 the real operating condition of a CNC rotary table, a heavy robot joint, […]<\/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":[965],"tags":[],"class_list":["post-747","post","type-post","status-publish","format-standard","hentry","category-application-and-technical-guid"],"_links":{"self":[{"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/posts\/747","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/comments?post=747"}],"version-history":[{"count":1,"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/posts\/747\/revisions"}],"predecessor-version":[{"id":748,"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/posts\/747\/revisions\/748"}],"wp:attachment":[{"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/media?parent=747"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/categories?post=747"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/sk\/wp-json\/wp\/v2\/tags?post=747"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}