{"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\/cs\/planetary-gearbox-torsional-stiffness-dynamic-accuracy-ct-backlash\/","title":{"rendered":"Vysv\u011btlen\u00ed torzn\u00ed tuhosti planetov\u00e9 p\u0159evodovky \u2013 Pro\u010d je torzn\u00ed tuhost p\u0159i vysok\u00e9m to\u010div\u00e9m momentu d\u016fle\u017eit\u011bj\u0161\u00ed ne\u017e v\u016fle"},"content":{"rendered":"
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Korea Ever-Power<\/span>
\nTechnick\u00fd hlubok\u00fd ponor \u00b7 Dynamika<\/span><\/div>\n

Vysv\u011btlen\u00ed torzn\u00ed tuhosti planetov\u00e9 p\u0159evodovky \u2013 Pro\u010d je torzn\u00ed tuhost p\u0159i vysok\u00e9m to\u010div\u00e9m momentu d\u016fle\u017eit\u011bj\u0161\u00ed ne\u017e v\u016fle<\/h1>\n

Ka\u017ed\u00e1 p\u0159esnost planetov\u00e1 p\u0159evodovka<\/a> Datov\u00fd list uv\u00e1d\u00ed v\u016fli v \u00fahlov\u00fdch minut\u00e1ch. M\u00e9n\u011b ne\u017e 20% uv\u00e1d\u00ed torzn\u00ed tuhost. P\u0159esto p\u0159i zna\u010dn\u00e9m aplikovan\u00e9m kroutic\u00edm momentu \u2013 re\u00e1ln\u00fdch provozn\u00edch podm\u00ednk\u00e1ch CNC oto\u010dn\u00e9ho stolu, t\u011b\u017ek\u00e9ho robotick\u00e9ho kloubu nebo servolisu \u2013 elastick\u00e1 \u00fahlov\u00e1 v\u00fdchylka z torzn\u00ed poddajnosti zcela p\u0159ekra\u010duje specifikaci v\u016fle. Tato p\u0159\u00edru\u010dka to p\u0159esn\u011b vystihuje.<\/p>\n

Z\u00edskejte anal\u00fdzu tuhosti pro va\u0161i aplikaci \u2192<\/a><\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Parametr, kter\u00fd dominuje p\u0159esnosti p\u0159i zat\u00ed\u017een\u00ed \u2013 a jen z\u0159\u00eddka se objevuje v pr\u016fvodc\u00edch v\u00fdb\u011brem<\/h2>\n

V\u016fle je specifikace p\u0159esnosti, kterou zn\u00e1 ka\u017ed\u00fd voli\u010d p\u0159evodovky. Je to \u00fahlov\u00e1 mrtv\u00e1 z\u00f3na p\u0159i zm\u011bn\u011b sm\u011bru \u2013 m\u011b\u0159iteln\u00e1 bez zat\u00ed\u017een\u00ed, prominentn\u011b uveden\u00e1 v ka\u017ed\u00e9m datov\u00e9m listu a obvykle prvn\u00ed (a n\u011bkdy jedin\u00e9) krit\u00e9rium p\u0159esnosti pou\u017e\u00edvan\u00e9 p\u0159i porovn\u00e1v\u00e1n\u00ed planetov\u00fdch p\u0159evodovek. Torzn\u00ed tuhost, ozna\u010den\u00e1 Ct a m\u011b\u0159en\u00e1 v N\u00b7m\/\u00fahlovou minutu, je parametr, kter\u00fd ur\u010duje, o kolik se v\u00fdstupn\u00ed h\u0159\u00eddel elasticky oto\u010d\u00ed pod p\u016fsob\u00edc\u00edm zat\u00ed\u017een\u00edm. Objevuje se v m\u00e9n\u011b ne\u017e jedn\u00e9 z p\u011bti publikovan\u00fdch p\u0159\u00edru\u010dek pro v\u00fdb\u011br planetov\u00fdch p\u0159evodovek \u2013 a zcela chyb\u00ed ve v\u011bt\u0161in\u011b n\u00e1stroj\u016f pro dimenzov\u00e1n\u00ed specifick\u00fdch pro danou aplikaci.<\/p>\n

To systematicky vytv\u00e1\u0159\u00ed slep\u00e9 m\u00edsto: in\u017een\u00fd\u0159i pe\u010dliv\u011b specifikuj\u00ed v\u016fli, vyberou jednotku s n\u00edzkou v\u016fl\u00ed a pot\u00e9 zjist\u00ed, \u017ee p\u0159i jejich skute\u010dn\u00e9m provozn\u00edm to\u010div\u00e9m momentu zp\u016fsobuje elastick\u00e1 v\u00fdchylka od torzn\u00ed poddajnosti \u00fahlovou chybu dvakr\u00e1t a\u017e \u010dty\u0159ikr\u00e1t v\u011bt\u0161\u00ed ne\u017e v\u016fle, kterou specifikovali. Tyto dva jevy maj\u00ed zcela nez\u00e1visl\u00fd p\u016fvod \u2013 a p\u0159evodovka s malou v\u016fl\u00ed m\u016f\u017ee m\u00edt n\u00edzkou torzn\u00ed tuhost a naopak.<\/p>\n

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Zp\u011btn\u00e1 reakce \u2014 Chyba p\u0159i obr\u00e1cen\u00ed sm\u011bru<\/div>\n

\u00dahlov\u00e1 mrtv\u00e1 z\u00f3na mezi vstupem a v\u00fdstupem p\u0159i obr\u00e1cen\u00ed sm\u011bru pohonu. \u010cist\u011b geometrick\u00e1 \u2013 zp\u016fsoben\u00e1 v\u016fl\u00ed mezi zuby ozuben\u00e9ho kola. P\u0159\u00edtomna na nulov\u00e9 zat\u00ed\u017een\u00ed<\/strong>Pevn\u00e9 po v\u00fdrob\u011b (dokud opot\u0159eben\u00ed nezv\u00fd\u0161\u00ed jeho hodnotu). Ud\u00e1v\u00e1 se v \u00fahlov\u00fdch minut\u00e1ch.<\/p>\n

M\u011b\u0159eno p\u0159i: \u00b131 TP3T jmenovit\u00fd kroutic\u00ed moment
\nNast\u00e1v\u00e1, kdy\u017e: se sm\u011br obr\u00e1t\u00ed
\nZ\u00e1vis\u00ed na: v\u00fdrobn\u00ed toleranci<\/div>\n<\/div>\n
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Torzn\u00ed pr\u016fhyb \u2013 chyba z\u00e1visl\u00e1 na zat\u00ed\u017een\u00ed<\/div>\n

Elastick\u00e9 \u201enav\u00edjen\u00ed\u201c zub\u016f ozuben\u00fdch kol, h\u0159\u00eddel\u00ed a una\u0161e\u010de planetov\u00fdch kol p\u0159i p\u016fsob\u00edc\u00edm kroutic\u00edm momentu. \u00dam\u011brn\u00e9 zat\u00ed\u017een\u00ed. Doch\u00e1z\u00ed k n\u011bmu p\u0159i jak\u00fdkoli stupe\u0148 to\u010div\u00e9ho momentu<\/strong>Zmiz\u00ed po odstran\u011bn\u00ed zat\u00ed\u017een\u00ed (elastick\u00e9). Roste s ka\u017ed\u00fdm N\u00b7m aplikovan\u00e9ho kroutic\u00edho momentu za nulou.<\/p>\n

Vzorec: \u03b8_elastic = T \/ Ct (\u00fahlov\u00fd minut)
\nDoch\u00e1z\u00ed k: jak\u00e9mukoli aplikovan\u00e9mu kroutic\u00edmu momentu
\nZ\u00e1vis\u00ed na: tuhosti p\u0159evodovky Ct<\/div>\n<\/div>\n
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Celkov\u00e1 \u00fahlov\u00e1 chyba \u2013 co n\u00e1stroj skute\u010dn\u011b vid\u00ed<\/div>\n

V re\u00e1ln\u00fdch servopohonn\u00fdch aplikac\u00edch celkov\u00e1 chyba polohov\u00e1n\u00ed zahrnuje oba p\u0159\u00edsp\u011bvky sou\u010dasn\u011b. P\u0159i n\u00edzk\u00fdch momentech dominuje v\u016fle. P\u0159i vysok\u00fdch momentech \u2013 nad bodem k\u0159\u00ed\u017een\u00ed, kter\u00fd z\u00e1vis\u00ed na Ct \u2013 elastick\u00e1 v\u00fdchylka p\u0159evy\u0161uje v\u016fli a st\u00e1v\u00e1 se prim\u00e1rn\u00edm limitem p\u0159esnosti<\/strong>.<\/p>\n

\u03b8_celkov\u00fd \u2248 \u03b8_v\u016fle + \u03b8_pru\u017enost
\n= BL + T\/Ct (\u00fahlov\u00e1 minuta)
\nLine\u00e1rn\u00ed: E = R \u00d7 tan(\u03b8_total\/60 \u00d7 \u03c0\/180)<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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Kompletn\u00ed tabulka torzn\u00ed tuhosti \u0159ady EP \u2013 v\u0161echny velikosti r\u00e1m\u016f a \u0159ady<\/h2>\n

N\u00e1sleduj\u00edc\u00ed specifikace p\u0159edstavuj\u00ed certifikovan\u00e9 hodnoty torzn\u00ed tuhosti pro v\u0161echny p\u0159esn\u00e9 planetov\u00e9 p\u0159evodovky \u0159ady Korea Ever-Power EP. Torzn\u00ed tuhost Ct je definov\u00e1na jako v\u00fdstupn\u00ed to\u010div\u00fd moment pot\u0159ebn\u00fd k vytvo\u0159en\u00ed jedn\u00e9 obloukov\u00e9 minuty pru\u017en\u00e9 \u00fahlov\u00e9 v\u00fdchylky na v\u00fdstupn\u00edm h\u0159\u00eddeli pod zat\u00ed\u017een\u00edm, p\u0159i\u010dem\u017e vstupn\u00ed h\u0159\u00eddel je pevn\u011b uchycena. Vy\u0161\u0161\u00ed Ct znamen\u00e1 men\u0161\u00ed pru\u017enou v\u00fdchylku p\u0159i stejn\u00e9m aplikovan\u00e9m to\u010div\u00e9m momentu \u2013 a tedy lep\u0161\u00ed dynamickou p\u0159esnost polohov\u00e1n\u00ed.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n
S\u00e9rie<\/th>\nR\u00e1m (mm)<\/th>\nCt \u2014 1stup\u0148ov\u00fd
\n(N\u00b7m\/\u00fahlovou minutu)<\/span><\/th>\n		Ct \u2014 2stup\u0148ov\u00fd
\n(N\u00b7m\/\u00fahlovou minutu)<\/span><\/th>\n		Maxim\u00e1ln\u00ed to\u010div\u00fd moment
\n(N\u00b7m)<\/span><\/th>\n		T\u0159\u00edda Ct<\/th>\n<\/tr>\n<\/thead>\n
EP-ZDE \/ EP-ZDF<\/a><\/td>\n40 mm<\/td>\n0.7<\/td>\n\u2014<\/td>\n6<\/td>\nLehk\u00e1 u\u017eitkov\u00e1 vozidla<\/td>\n<\/tr>\n
EP-ZDE \/ EP-ZDF<\/td>\n60 mm<\/td>\n1.8<\/td>\n\u2014<\/td>\n16<\/td>\nNorma<\/td>\n<\/tr>\n
EP-ZDE \/ EP-ZDF<\/td>\n80 mm<\/td>\n4.5<\/td>\n\u2014<\/td>\n50<\/td>\nNorma<\/td>\n<\/tr>\n
EP-ZDE \/ EP-ZDF<\/td>\n120 mm<\/td>\n12<\/td>\n\u2014<\/td>\n110<\/td>\nM\u00edrn\u00fd<\/td>\n<\/tr>\n
EP-ZDE \/ EP-ZDF<\/td>\n160 mm<\/td>\n38<\/td>\n\u2014<\/td>\n450<\/td>\nStandardn\u00ed-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>\nStejn\u00e9 jako ZDE podle r\u00e1mu<\/td>\n<\/tr>\n
EP-ZDS<\/a><\/td>\n115 mm<\/td>\n20<\/td>\n22<\/td>\n210<\/td>\nVysok\u00fd<\/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>\nNejvy\u0161\u0161\u00ed (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 ne\u017e EP-ZDE-160 (38 N\u00b7m\/arcmin), proto\u017ee ZDS-115 m\u00e1 men\u0161\u00ed r\u00e1m \u2013 porovn\u00e1vejte v r\u00e1mci t\u0159\u00eddy r\u00e1mu, nikoli nap\u0159\u00ed\u010d. \u2605\u2605 EP-ZDS-190 dosahuje 130 N\u00b7m\/arcmin d\u00edky v\u011bt\u0161\u00ed v\u00fdstupn\u00ed h\u0159\u00eddeli (\u03a655h7 vs. \u03a640h7), tu\u017e\u0161\u00edmu nosi\u010di planetov\u00fdch kol a p\u0159edpjat\u00fdm v\u00fdstupn\u00edm lo\u017eisk\u016fm. Dvoustup\u0148ov\u00fd Ct p\u0159evy\u0161uje jednostup\u0148ov\u00fd, proto\u017ee p\u0159\u00eddavn\u00e9 planetov\u00e9 stupn\u011b zvy\u0161uj\u00ed tuhost nosi\u010de v konstrukci ZDS.<\/p>\n<\/section>\n

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\"P\u0159esn\u00e1<\/p>\n
\u0158ada EP-ZDS dosahuje torzn\u00ed tuhosti a\u017e 130 N\u00b7m\/\u00fahlovou minutu (1 stupe\u0148) d\u00edky v\u011bt\u0161\u00edmu pr\u016fm\u011bru v\u00fdstupn\u00ed h\u0159\u00eddele, tu\u017e\u0161\u00ed geometrii una\u0161e\u010de planetov\u00fdch kol a p\u0159edpjat\u00fdm v\u00fdstupn\u00edm lo\u017eisk\u016fm \u2013 p\u0159i stejn\u00e9m aplikovan\u00e9m kroutic\u00edm momentu poskytuje 3,4\u00d7 lep\u0161\u00ed dynamickou p\u0159esnost ne\u017e EP-ZDE-160. Porovnejte specifikace planetov\u00fdch p\u0159evodovek \u2192<\/a><\/div>\n<\/div>\n

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Bod k\u0159\u00ed\u017een\u00ed \u2013 kde torzn\u00ed deformace p\u0159evy\u0161uje zp\u011btn\u00fd r\u00e1z jako dominantn\u00ed chyba<\/h2>\n

P\u0159i n\u00edzk\u00fdch \u00farovn\u00edch kroutic\u00edho momentu dominuje v\u016fle celkov\u00e9 \u00fahlov\u00e9 chyb\u011b, proto\u017ee elastick\u00e1 v\u00fdchylka je mal\u00e1. S rostouc\u00edm aplikovan\u00fdm kroutic\u00edm momentem roste elastick\u00e1 v\u00fdchylka line\u00e1rn\u011b s T\/Ct, zat\u00edmco v\u016fle z\u016fst\u00e1v\u00e1 konstantn\u00ed. Existuje bod k\u0159\u00ed\u017een\u00ed kroutic\u00edho momentu, nad kter\u00fdm se elastick\u00e1 v\u00fdchylka st\u00e1v\u00e1 v\u011bt\u0161\u00edm ze dvou zdroj\u016f chyby \u2013 a tento bod k\u0159\u00ed\u017een\u00ed se mezi \u0159adami EP-ZDE a EP-ZDS dramaticky li\u0161\u00ed.<\/p>\n

Toto je v\u00fdpo\u010det, kter\u00fd v\u011bt\u0161ina pr\u016fvodc\u016f v\u00fdb\u011brem zcela opom\u00edj\u00ed \u2013 a z\u00e1sadn\u011b m\u011bn\u00ed zp\u016fsob, jak\u00fdm by se m\u011bla torzn\u00ed tuhost v\u00e1\u017eit v procesu specifikace pro aplikace s vysok\u00fdm to\u010div\u00fdm momentem.<\/p>\n

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K\u0159\u00ed\u017eov\u00fd moment: Kdy\u017e \u03b8_elastic = \u03b8_backlash<\/div>\n
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Podm\u00ednka k\u0159\u00ed\u017een\u00ed: T_k\u0159\u00ed\u017een\u00ed = 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 \u00fahlov\u00fdch minut, Ct=130): T_cross = 8 \u00d7 130 = 1 040 N\u00b7m<\/strong><\/div>\n
Nad T_crossover: torzn\u00ed pr\u016fhyb je V\u011aT\u0160\u00cdM zdrojem chyby \u2013 nikoli v\u016fle.<\/div>\n<\/div>\n

EP-ZDE-160 p\u0159ekra\u010duje hranici p\u0159i 304 N\u00b7m \u2013 co\u017e je zcela v r\u00e1mci jmenovit\u00e9ho rozsahu 450 N\u00b7m. V horn\u00ed polovin\u011b rozsahu kroutic\u00edho momentu (304\u2013450 N\u00b7m) je pru\u017en\u00e1 v\u00fdchylka ji\u017e v\u011bt\u0161\u00ed ne\u017e v\u016fle. Z\u00fa\u017een\u00ed specifikace v\u016fle z 8 \u00fahlov\u00fdch minut na 3 \u00fahlov\u00e9 minuty v tomto rozsahu kroutic\u00edho momentu u\u0161et\u0159\u00ed pouze 5 \u00fahlov\u00fdch minut mrtv\u00e9ho p\u00e1sma, zat\u00edmco pru\u017en\u00e1 v\u00fdchylka p\u0159i 380 N\u00b7m je 10 \u00fahlov\u00fdch minut \u2013 chyba, kterou u\u017e\u0161\u00ed v\u016fle v\u016fbec nedok\u00e1\u017ee vy\u0159e\u0161it. EP-ZDS-190 nep\u0159ekra\u010duje hranici, dokud nen\u00ed 1 040 N\u00b7m \u2013 mimo jmenovit\u00fd 1stup\u0148ov\u00fd rozsah \u2013 tak\u017ee v\u016fle z\u016fst\u00e1v\u00e1 dominantn\u00ed chybou v cel\u00e9m jeho provozn\u00edm rozsahu, a proto EP-ZDS dosahuje lep\u0161\u00ed celkov\u00e9 p\u0159esnosti ne\u017e EP-ZDE i p\u0159i stejn\u00e9 specifikaci v\u016fle (<8 \u00fahlov\u00fdch minut).<\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n\n\n\n
Pou\u017eit\u00fd kroutic\u00ed moment<\/th>\nZDE-160
\nV\u016fle (\u00fahlov\u00e1 minuta)<\/th>\n		ZDE-160
\nElastick\u00e9 \u03b8 (\u00fahlov\u00fdch minut)<\/th>\n		ZDE-160
\nCelkem (\u00fahlov\u00e9 minuty)<\/th>\n		ZDS-190
\nElastick\u00e9 \u03b8 (\u00fahlov\u00fdch minut)<\/th>\n		ZDS-190
\nCelkem (\u00fahlov\u00e9 minuty)<\/th>\n		Zv\u00fd\u0161en\u00ed p\u0159esnosti<\/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\u0161\u00ed<\/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\u0161\u00ed<\/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\u0161\u00ed<\/td>\n<\/tr>\n
304 N\u00b7m \u2190 K\u0159\u00ed\u017een\u00ed<\/td>\n8.0<\/td>\n8,0 \u2190 elastick\u00fd = BL<\/td>\n16.0<\/td>\n2.3<\/td>\n10.3<\/td>\n1,6\u00d7 lep\u0161\u00ed<\/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\u0161\u00ed<\/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\u0161\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Ob\u011b jednotky jsou specifikov\u00e1ny pro v\u016fli <8 \u00fahlov\u00fdch minut. Ct: ZDE-160 = 38 N\u00b7m\/\u00fahlovou minutu; ZDS-190 = 130 N\u00b7m\/\u00fahlovou minutu. \u03b8_elastic = T\/Ct. Celkem = v\u016fle + pru\u017enost. Zlep\u0161en\u00ed ZDS-190 roste s to\u010div\u00fdm momentem, proto\u017ee Ct je jedin\u00fdm rozli\u0161ovac\u00edm faktorem \u2013 v\u016fle je pro ob\u011b jednotky stejn\u00e1.<\/p>\n<\/section>\n

<\/p>\n

\n

Z \u00fahlov\u00fdch minut na milimetry \u2013 chyba dynamick\u00e9ho polohov\u00e1n\u00ed p\u0159i va\u0161em polom\u011bru zat\u00ed\u017een\u00ed<\/h2>\n

Jak je stanoveno v p\u0159\u00edru\u010dce pro v\u016fli, p\u0159evod \u00fahlov\u00e9 chyby na line\u00e1rn\u00ed chybu p\u0159i specifick\u00e9m polom\u011bru zat\u00ed\u017een\u00ed je: E_linear = R \u00d7 tan(\u03b8\/60 \u00d7 \u03c0\/180). N\u00e1sleduj\u00edc\u00ed tabulka aplikuje tento p\u0159evod pouze na slo\u017eku pru\u017en\u00e9ho vych\u00fdlen\u00ed \u2013 ukazuje milimetrovou dynamickou chybu polohov\u00e1n\u00ed z torzn\u00ed poddajnosti p\u0159i \u010dty\u0159ech reprezentativn\u00edch polom\u011brech zat\u00ed\u017een\u00ed. Toto je chyba, kterou p\u0159\u00edsn\u011bj\u0161\u00ed specifikace v\u016fle nedok\u00e1\u017ee vy\u0159e\u0161it.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
To\u010div\u00fd moment<\/th>\nChyba pru\u017enosti ZDE-160 (Ct=38)<\/th>\nChyba pru\u017enosti ZDS-190 (Ct=130)<\/th>\nVylep\u0161en\u00ed ZDS<\/th>\n<\/tr>\n
Pou\u017eit\u00fd kroutic\u00ed moment<\/th>\nR=100 mm<\/th>\nR=300 mm<\/th>\nR=100 mm<\/th>\nR=300 mm<\/th>\np\u0159i 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\u0161\u00ed<\/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\u0161\u00ed<\/td>\n<\/tr>\n
380 N\u00b7m (t\u011b\u017ek\u00fd \u0159ez)<\/td>\n0,291 mm<\/td>\n0,873 mm<\/td>\n0,085 mm<\/td>\n0,254 mm<\/td>\n3,4\u00d7 lep\u0161\u00ed<\/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\u0161\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n

D\u016fle\u017eit\u00e9 informace pro specifikaci oto\u010dn\u00e9ho stolu CNC:<\/strong> Oto\u010dn\u00fd st\u016fl CNC s osou B s polom\u011brem uchycen\u00ed obrobku 300 mm a \u0161pi\u010dkov\u00fdm \u0159ezn\u00fdm momentem 380 N\u00b7m bude akumulovat Chyba elastick\u00e9ho polohov\u00e1n\u00ed 0,873 mm<\/strong> pouze z torzn\u00ed poddajnosti, pokud je osazen EP-ZDE-160. Tato chyba se m\u011bn\u00ed s ka\u017edou zm\u011bnou \u0159ezn\u00e9 s\u00edly \u2013 je dynamick\u00e1, nikoli statick\u00e1 a zp\u011btn\u00e1 vazba serva ji nem\u016f\u017ee kompenzovat, proto\u017ee kod\u00e9r motoru m\u011b\u0159\u00ed polohu motoru, nikoli polohu n\u00e1stroje. Stejn\u00fd st\u016fl osazen\u00fd EP-ZDS-190 m\u00e1 pouze 0,254 mm<\/strong> elastick\u00e9 chyby za stejn\u00fdch \u0159ezn\u00fdch podm\u00ednek \u2013 3,4n\u00e1sobn\u00e9 zlep\u0161en\u00ed, kter\u00e9 se p\u0159\u00edmo prom\u00edt\u00e1 do u\u017e\u0161\u00edch toleranc\u00ed d\u00edl\u016f.<\/p>\n<\/div>\n<\/section>\n

<\/p>\n

\"Provozn\u00ed<\/p>\n
V planetov\u00e9 p\u0159evodovce doch\u00e1z\u00ed p\u0159i p\u016fsoben\u00ed kroutic\u00edho momentu k elastick\u00e9 deformaci na t\u0159ech m\u00edstech: na boc\u00edch zub\u016f planetov\u00e9ho kola (Hertzova kontaktn\u00ed deformace), v z\u00e1b\u011bru centr\u00e1ln\u00edho kola a v konstrukci una\u0161e\u010de planetov\u00e9ho kola. Torzn\u00ed tuhost Ct je souhrnnou m\u00edrou v\u0161ech t\u0159\u00ed deformac\u00ed dohromady \u2013 vy\u0161\u0161\u00ed Ct znamen\u00e1 men\u0161\u00ed celkov\u00e9 elastick\u00e9 nav\u00edjen\u00ed p\u0159i stejn\u00e9m kroutic\u00edm momentu.<\/div>\n<\/div>\n

<\/p>\n

\n

Torzn\u00ed tuhost a rezonan\u010dn\u00ed frekvence \u2013 d\u016fsledky lad\u011bn\u00ed serv<\/h2>\n

Torzn\u00ed tuhost p\u0159esn\u00e9 planetov\u00e9 p\u0159evodovky p\u0159\u00edmo ur\u010duje mechanickou rezonan\u010dn\u00ed frekvenci syst\u00e9mu p\u0159evodovka-zat\u00ed\u017een\u00ed. Tato rezonan\u010dn\u00ed frekvence ur\u010duje horn\u00ed hranici \u0161\u00ed\u0159ky p\u00e1sma smy\u010dky rychlosti serva \u2013 rychlost, s jakou m\u016f\u017ee regul\u00e1tor reagovat na chyby polohy bez vyvol\u00e1n\u00ed struktur\u00e1ln\u00ed rezonance. P\u0159evodovka s vy\u0161\u0161\u00edm Ct zvy\u0161uje rezonan\u010dn\u00ed frekvenci, co\u017e umo\u017e\u0148uje agresivn\u011bj\u0161\u00ed lad\u011bn\u00ed serva a t\u00edm i lep\u0161\u00ed dynamick\u00fd polohovac\u00ed v\u00fdkon.<\/p>\n

\n
Vzorec pro rezonan\u010dn\u00ed frekvenci<\/div>\n
\n
f_rezonance = (1\/2\u03c0) \u00d7 \u221a(v\u00fdstupn\u00ed Ct[N\u00b7m\/rad] \/ zat\u00ed\u017een\u00ed 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
C\u00edl: f_rezonance > 3\u00d7 \u0161\u00ed\u0159ka p\u00e1sma servo\u0159\u00edzen\u00ed (obvykle 50\u2013150 Hz pro servo osy)<\/div>\n<\/div>\n<\/div>\n
\n\n\n\n\n\n\n\n\n
P\u0159evodovka<\/th>\nCt (N\u00b7m\/\u00fahlovou minutu)<\/th>\nrezonan\u010dn\u00ed
\nCNC st\u016fl J=5 kg\u00b7m\u00b2<\/span><\/th>\n		rezonan\u010dn\u00ed
\nRobot J2 J=97 kg\u00b7m\u00b2<\/span><\/th>\n		Limit Kv serva<\/th>\nPosouzen\u00ed lad\u011bn\u00ed<\/th>\n<\/tr>\n<\/thead>\n
ZDE-160<\/td>\n38<\/td>\n25,7 Hz<\/td>\n5,8 Hz<\/td>\nOmezen\u00fd<\/td>\nCNC st\u016fl: OK. Robot J2: pod servopohonem \u2013 riziko kmit\u00e1n\u00ed<\/td>\n<\/tr>\n
ZDS-115<\/td>\n20<\/td>\n18,7 Hz<\/td>\n4,2 Hz<\/td>\nN\u00edzk\u00fd<\/td>\nNi\u017e\u0161\u00ed Ct ne\u017e ZDE-160 \u2013 spr\u00e1vn\u00e9 pouze pro aplikace s men\u0161\u00edm r\u00e1mem, nikoli pro p\u0159\u00edm\u00fd upgrade<\/td>\n<\/tr>\n
ZDS-142<\/td>\n44<\/td>\n27,7 Hz<\/td>\n6,3 Hz<\/td>\nDobr\u00fd<\/td>\nM\u00edrn\u00e9 zlep\u0161en\u00ed oproti ZDE-160 \u2013 preferov\u00e1no pro CNC stroje s vysokou z\u00e1t\u011b\u017e\u00ed a roboty J2\/J3<\/td>\n<\/tr>\n
ZDS-190<\/td>\n130<\/td>\n47,6 Hz<\/td>\n10,8 Hz<\/td>\nNejvy\u0161\u0161\u00ed<\/td>\nNejlep\u0161\u00ed dynamick\u00e1 odezva \u2013 doporu\u010deno pro velk\u00e9 CNC stoly a roboty J1\/J2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n
\n
\u26a0 D\u016fle\u017eit\u00e9: ZDS-115 m\u00e1 ni\u017e\u0161\u00ed Ct ne\u017e ZDE-160<\/div>\n

EP-ZDS-115 (Ct=20 N\u00b7m\/arcmin) m\u00e1 ni\u017e\u0161\u00ed torzn\u00ed tuhost ne\u017e EP-ZDE-160 (Ct=38 N\u00b7m\/arcmin), proto\u017ee se jedn\u00e1 o men\u0161\u00ed r\u00e1m. Nep\u0159edpokl\u00e1dejte, \u017ee \u201eZDS = tu\u017e\u0161\u00ed ne\u017e ZDE\u201c \u2013 srovn\u00e1n\u00ed je platn\u00e9 pouze v r\u00e1mci stejn\u00e9 nebo srovnateln\u00e9 velikosti r\u00e1mu. ZDS-142 (44) nepatrn\u011b p\u0159evy\u0161uje ZDE-160 (38). ZDS-190 (130) jej v\u00fdrazn\u011b p\u0159evy\u0161uje. Aby \u0159ada ZDS poskytovala svou v\u00fdhodu v tuhosti, mus\u00ed aplikace vy\u017eadovat rozsah r\u00e1m\u016f 115\u2013190 mm, kter\u00fd ZDS pokr\u00fdv\u00e1.<\/p>\n<\/div>\n

\n
\u2705 Pro\u010d m\u00e1 ZDS 2f\u00e1zov\u00fd opar m\u00edrn\u011b vy\u0161\u0161\u00ed Ct ne\u017e 1f\u00e1zov\u00fd<\/div>\n

Protiintuitivn\u011b je to, \u017ee Ct u dvoustup\u0148ov\u00e9 p\u0159evodovky EP-ZDS p\u0159evy\u0161uje Ct u jednostup\u0148ov\u00e9 p\u0159evodovky (ZDS-190: 140 vs. 130 N\u00b7m\/\u00fahl. minutu). Je to proto, \u017ee dal\u0161\u00ed planetov\u00fd stupe\u0148 v ZDS p\u0159isp\u00edv\u00e1 ke struktur\u00e1ln\u00ed tuhosti sestavy una\u0161e\u010de planet \u2013 una\u0161e\u010d se s upnut\u00fdm sekund\u00e1rn\u00edm stupn\u011bm st\u00e1v\u00e1 efektivn\u011b tu\u017e\u0161\u00edm. Toto je specifick\u00e9 pro konstrukci ZDS a nevztahuje se na \u0159adu ZDE, kde v\u00edcestup\u0148ov\u00e1 p\u0159evodovka zvy\u0161uje poddajnost sp\u00ed\u0161e ne\u017e tuhost.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

Kdy specifikovat torzn\u00ed tuhost jako prim\u00e1rn\u00ed krit\u00e9rium v\u00fdb\u011bru<\/h2>\n

Torzn\u00ed tuhost by m\u011bla b\u00fdt prim\u00e1rn\u00edm krit\u00e9riem pro p\u0159esnost \u2013 p\u0159ed v\u016fl\u00ed \u2013 ve \u010dty\u0159ech aplika\u010dn\u00edch kategori\u00edch. Ve v\u0161ech ostatn\u00edch kategori\u00edch je posta\u010duj\u00edc\u00ed samotn\u00e1 specifikace v\u016fle a \u0159ada EP-ZDE\/ZDF poskytuje spr\u00e1vn\u00fd v\u00fdkon za ni\u017e\u0161\u00ed cenu.<\/p>\n

\n
\n
\u2460 CNC oto\u010dn\u00e9 stoly pro vysok\u00e9 zat\u00ed\u017een\u00ed (osa B\/C)<\/div>\n

\u0160pi\u010dkov\u00e9 \u0159ezn\u00e9 momenty 200\u2013800 N\u00b7m ve velk\u00fdch horizont\u00e1ln\u00edch obr\u00e1b\u011bc\u00edch centrech. P\u0159i t\u011bchto momentech dominuje pru\u017en\u00e9 vych\u00fdlen\u00ed celkov\u00e9 \u00fahlov\u00e9 chyb\u011b. Rozm\u011brov\u00e1 tolerance sou\u010d\u00e1sti u velk\u00fdch obrobk\u016f (kruhovitost d\u00edry, kolmost \u010deln\u00ed plochy) p\u0159\u00edmo odr\u00e1\u017e\u00ed dynamickou tuhost p\u0159evodovky. Specifikujte: EP-ZDS-142 nebo EP-ZDS-190 podle t\u0159\u00eddy momentu.<\/p>\n<\/div>\n

\n
\u2461 Klouby pr\u016fmyslov\u00e9ho robota J1 a J2<\/div>\n

Struktur\u00e1ln\u011b vysok\u00fd pom\u011br setrva\u010dnosti v bodech J1\/J2 znamen\u00e1, \u017ee \u0161\u00ed\u0159ka p\u00e1sma serva mus\u00ed b\u00fdt omezena, aby se zabr\u00e1nilo rezonanci. Vy\u0161\u0161\u00ed Ct zvy\u0161uje rezonan\u010dn\u00ed frekvenci, co\u017e umo\u017e\u0148uje \u0161ir\u0161\u00ed \u0161\u00ed\u0159ku p\u00e1sma serva a lep\u0161\u00ed p\u0159esnost sledov\u00e1n\u00ed dr\u00e1hy. Nav\u00edc \u0161pi\u010dkov\u00e9 dynamick\u00e9 momenty b\u011bhem zrychlov\u00e1n\u00ed velk\u00fdch robotick\u00fdch ramen p\u0159ekra\u010duj\u00ed bod k\u0159\u00ed\u017een\u00ed ZDE-160.<\/p>\n<\/div>\n

\n
\u2462 Hlavn\u00ed pohonn\u00e9 osy servolisu<\/div>\n

Operace tv\u00e1\u0159en\u00ed r\u00e1zem vystavuj\u00ed p\u0159evodovku impulzn\u00edm moment\u016fm o velikosti 2\u20133n\u00e1sobku trval\u00e9 jmenovit\u00e9 hodnoty v okam\u017eiku kontaktu s d\u00edlem. P\u0159i impulzn\u00edm zat\u00ed\u017een\u00ed je elastick\u00e1 deformace okam\u017eit\u00e1 a poloha hrotu n\u00e1stroje se odchyluje od po\u017eadovan\u00e9 polohy. Vy\u0161\u0161\u00ed hodnota Ct tuto odchylku sni\u017euje a zlep\u0161uje rozm\u011brovou konzistenci tv\u00e1\u0159en\u00ed lisov\u00e1n\u00edm. Pro pohony lis\u016f je spr\u00e1vn\u00fd p\u0159\u00edstup provozn\u00ed faktor 2,5+ plus specifikace tuhosti.<\/p>\n<\/div>\n

\n
\u2463 Port\u00e1lov\u00e9 osy s vysokorychlostn\u00edm obr\u00e1cen\u00edm sm\u011bru<\/div>\n

Port\u00e1ly pro laserov\u00e9 \u0159ez\u00e1n\u00ed a vysokorychlostn\u00ed syst\u00e9my pick-and-place prov\u00e1d\u011bj\u00ed zm\u011bny sm\u011bru 50\u2013200kr\u00e1t za minutu se zna\u010dnou setrva\u010dnost\u00ed osy. P\u0159i ka\u017ed\u00e9m obr\u00e1cen\u00ed mus\u00ed p\u0159evodovka eliminovat p\u00e1smo nehybnosti zp\u016fsoben\u00e9 v\u016fl\u00ed a sou\u010dasn\u011b absorbovat p\u0159echodov\u00fd moment kroutic\u00edho momentu zpomalov\u00e1n\u00ed a op\u011btovn\u00e9ho zrychlov\u00e1n\u00ed z\u00e1t\u011b\u017ee. Tu\u017e\u0161\u00ed p\u0159evodovka tlum\u00ed p\u0159echodov\u00fd moment rychleji a sni\u017euje chybu polohov\u00e1n\u00ed b\u011bhem intervalu obr\u00e1cen\u00ed. U port\u00e1l\u016f pracuj\u00edc\u00edch rychlost\u00ed nad 3 m\/s s po\u017eadavky na polohov\u00e1n\u00ed pod 0,1 mm zva\u017ete EP-ZDS-142 i p\u0159i st\u0159edn\u00edch \u00farovn\u00edch kroutic\u00edho momentu.<\/p>\n<\/div>\n<\/div>\n

\n

Pokud je EP-ZDE\/ZDF p\u0159i Ct=38 N\u00b7m\/arcmin dostate\u010dn\u00fd:<\/strong> Pro aplikace, kde je \u0161pi\u010dkov\u00fd aplikovan\u00fd kroutic\u00ed moment pod bodem k\u0159\u00ed\u017een\u00ed 304 N\u00b7m pro ZDE-160 \u2013 klouby lehk\u00fdch robot\u016f (J3\u2013J6), servoosy pro balen\u00ed, hnac\u00ed kola AGV, pohony sol\u00e1rn\u00edch sledova\u010d\u016f a index\u00e1tory dopravn\u00edk\u016f \u2013 je dominantn\u00edm parametrem p\u0159esnosti v\u016fle a EP-ZDE\/ZDF je spr\u00e1vnou a n\u00e1kladov\u011b efektivn\u011bj\u0161\u00ed volbou. Vy\u0161\u0161\u00ed Ct u ZDS nen\u00ed nutn\u00fd a dodate\u010dn\u00e9 n\u00e1klady nejsou od\u016fvodn\u011bny \u017e\u00e1dn\u00fdm m\u011b\u0159iteln\u00fdm zlep\u0161en\u00edm v\u00fdkonu aplikace.<\/p>\n<\/div>\n<\/section>\n

<\/p>\n

\"Konstruk\u010dn\u00ed<\/p>\n
Vy\u0161\u0161\u00ed torzn\u00ed tuhost \u0159ady EP-ZDS oproti EP-ZDE je dosa\u017eena t\u0159emi struktur\u00e1ln\u00edmi zm\u011bnami: v\u011bt\u0161\u00ed v\u00fdstupn\u00ed h\u0159\u00eddel (\u03a655h7 oproti \u03a640h7 u nejv\u011bt\u0161\u00edho r\u00e1mu), tu\u017e\u0161\u00ed una\u0161e\u010d planetov\u00fdch kol se zv\u011bt\u0161enou tlou\u0161\u0165kou st\u011bny a p\u0159edpjat\u00e1 v\u00fdstupn\u00ed lo\u017eiska, kter\u00e1 eliminuj\u00ed v\u016fli v podp\u011b\u0159e v\u00fdstupn\u00edho h\u0159\u00eddele. V\u0161echny t\u0159i zm\u011bny p\u0159isp\u00edvaj\u00ed k 3,4\u00d7 zlep\u0161en\u00ed torzn\u00ed tuhosti (Ct) u ZDS-190 oproti ZDE-160 (130 N\u00b7m\/\u00fahlovou minutu).<\/div>\n<\/div>\n

<\/p>\n

\n

Praktick\u00e1 t\u0159\u00edkrokov\u00e1 metoda pro zahrnut\u00ed torzn\u00ed tuhosti do va\u0161eho v\u00fdb\u011bru<\/h2>\n

V\u011bt\u0161ina in\u017een\u00fdr\u016f pou\u017e\u00edv\u00e1 sou\u010dinitel provozu a stupe\u0148 v\u016fle, ale torzn\u00ed tuhost z procesu v\u00fdb\u011bru zcela vynech\u00e1v\u00e1. N\u00e1sleduj\u00edc\u00ed t\u0159\u00edkrokov\u00e1 metoda integruje Ct do standardn\u00edho p\u011btikrokov\u00e9ho procesu v\u00fdb\u011bru bez v\u00fdznamn\u00e9ho zv\u00fd\u0161en\u00ed slo\u017eitosti.<\/p>\n

\n
\n
1<\/div>\n
\n
Vypo\u010d\u00edtejte to\u010div\u00fd moment k\u0159\u00ed\u017een\u00ed pro va\u0161i kandid\u00e1tskou p\u0159evodovku<\/div>\n

T_crossover = BL \u00d7 Ct. Pro EP-ZDE-160: 8 \u00d7 38 = 304 N\u00b7m. Porovnejte to se skute\u010dn\u00fdm \u0161pi\u010dkov\u00fdm provozn\u00edm momentem (po uplatn\u011bn\u00ed servisn\u00edho faktoru). Pokud je \u0161pi\u010dkov\u00fd moment > T_crossover, je torzn\u00ed tuhost ji\u017e dominantn\u00edm limitem p\u0159esnosti a Ct je nutn\u00e9 zv\u00fd\u0161it, aby se zlep\u0161il v\u00fdkon polohov\u00e1n\u00ed \u2013 p\u0159esn\u011bj\u0161\u00ed specifikace v\u016fle nepom\u016f\u017ee.<\/p>\n

Pokud je T_peak_operating > T_crossover \u2192 zadejte vy\u0161\u0161\u00ed Ct (\u0159ada ZDS)<\/div>\n<\/div>\n<\/div>\n
\n
2<\/div>\n
\n
Vypo\u010d\u00edtejte p\u0159ijateln\u00e9 elastick\u00e9 pr\u016fhyby z va\u0161\u00ed rozm\u011brov\u00e9 tolerance<\/div>\n

Ur\u010dete toleranci obr\u00e1b\u011bn\u00ed nebo polohov\u00e1n\u00ed (nap\u0159. \u00b10,1 mm p\u0159i specifick\u00e9m polom\u011bru zat\u00ed\u017een\u00ed R). Vypo\u010d\u00edtejte maxim\u00e1ln\u00ed p\u0159\u00edpustnou pru\u017enou deformaci: \u03b8_max = arctan(tolerance \/ R) v \u00fahlov\u00fdch minut\u00e1ch. Pot\u00e9 vypo\u010d\u00edtejte po\u017eadovan\u00fd Ct: Ct_required = T_peak \/ \u03b8_max. Vyberte jednotku \u0159ady EP s Ct \u2265 Ct_required.<\/p>\n

P\u0159\u00edklad: \u00b10,3 mm p\u0159i R=300 mm, T_peak=380 Nm
\n\u03b8_max = arctan(0,3\/300) \u00d7 3438 = 3,44 \u00fahlov\u00fdch minut
\nCt_required = 380\/3,44 = 110 N\u00b7m\/\u00fahlovou minutu \u2192 specifikujte ZDS-190 (Ct=130)<\/div>\n<\/div>\n<\/div>\n
\n
3<\/div>\n
\n
Ov\u011b\u0159te, zda je rezonan\u010dn\u00ed frekvence nad \u0161\u00ed\u0159kou p\u00e1sma servo\u0159\u00edzen\u00ed.<\/div>\n

Vypo\u010d\u00edtejte f_rezonan\u010dn\u00ed = (1\/2\u03c0) \u00d7 \u221a(Ct[N\u00b7m\/rad] \/ J_z\u00e1t\u011b\u017e). Porovnejte s \u0161\u00ed\u0159kou p\u00e1sma \u0159\u00edzen\u00ed va\u0161eho serva. Z bezpe\u010dnostn\u00edch d\u016fvod\u016f by f_rezonan\u010dn\u00ed m\u011bla b\u00fdt alespo\u0148 3\u00d7 zes\u00edlen\u00ed frekvence serva Kv. Pokud je f_rezonan\u010dn\u00ed ni\u017e\u0161\u00ed ne\u017e 3\u00d7 \u0161\u00ed\u0159ka p\u00e1sma serva i s nejtu\u017e\u0161\u00ed vhodnou jednotkou \u0159ady EP, sni\u017ete \u0161\u00ed\u0159ku p\u00e1sma serva (akceptujte pomalej\u0161\u00ed odezvu) nebo zva\u017ete sn\u00ed\u017een\u00ed setrva\u010dnosti z\u00e1t\u011b\u017ee na v\u00fdstupu.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n


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

\n
\n
\n
Pot\u0159ebujete anal\u00fdzu torzn\u00ed tuhosti pro va\u0161i aplikaci?<\/div>\n

Spole\u010dnost Korea Ever-Power poskytuje aplika\u010dn\u00ed in\u017een\u00fdrstv\u00ed a poskytuje v\u00fdpo\u010dty kroutic\u00edho momentu k\u0159\u00ed\u017een\u00ed, anal\u00fdzu po\u017eadavk\u016f Ct a ov\u011b\u0159en\u00ed rezonan\u010dn\u00ed frekvence pro specifick\u00e9 aplikace \u2013 v\u010detn\u011b vstup\u016f pro rozm\u011brov\u00e9 tolerance a polom\u011br zat\u00ed\u017een\u00ed. Zadejte sv\u016fj maxim\u00e1ln\u00ed provozn\u00ed to\u010div\u00fd moment, polom\u011br zat\u00ed\u017een\u00ed a po\u017eadavky na rozm\u011brovou p\u0159esnost a z\u00edskejte kompletn\u00ed doporu\u010den\u00ed specifikace tuhosti v korej\u0161tin\u011b nebo angli\u010dtin\u011b.<\/p>\n<\/div>\n

\u017d\u00e1dost o anal\u00fdzu tuhosti \u2192<\/a><\/p>\n
sales@planet\u00e1rn\u00ed-p\u0159evodovky.com<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n
\u0158ada EP \u2013 Specifikace torzn\u00ed tuhosti<\/div>\n
\n
\n
\u0158ada EP-ZDS<\/div>\n
Ct 20\u2013130 N\u00b7m\/\u00fahlovou minutu<\/strong> \u00b7 IP65 \u00b7 1 800 N\u00b7m \u00b7 p\u0159ep\u011b\u0165ov\u00e1 pevnost p\u0159i 1 040 N\u00b7m pro ZDS-190 \u2014 torzn\u00ed tuhost nikdy neomezuje p\u0159esnost v r\u00e1mci jmenovit\u00e9ho rozsahu<\/div>\n

Zobrazit specifikace \u2192<\/a><\/p>\n<\/div>\n

\n
\u0158ada EP-ZDE<\/div>\n
Ct 0,7\u201338 N\u00b7m\/\u00fahlovou minutu<\/strong> \u00b7 v\u00fdhybka p\u0159i 304 N\u00b7m (ZDE-160) \u00b7 spr\u00e1vn\u00e1 volba pro to\u010div\u00fd moment pod 300 N\u00b7m, kde dominuje v\u016fle \u2013 v\u011bt\u0161ina aplikac\u00ed servopohon\u016f<\/div>\n

Zobrazit specifikace \u2192<\/a><\/p>\n<\/div>\n

\n
\u0158ada EP-ZDF<\/div>\n
Stejn\u00fd Ct jako u EP-ZDE u r\u00e1mu \u00b7 \u010dtvercov\u00e1 p\u0159\u00edruba pro deskov\u00e9 konstrukce \u00b7 stejn\u00fd to\u010div\u00fd moment a tuhost \u2014 zvolte ZDF, pokud nen\u00ed k dispozici obr\u00e1b\u011bn\u00ed otvor\u016f<\/div>\n

Zobrazit specifikace \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

Prohl\u00e9dnout v\u0161ech 5 s\u00e9ri\u00ed EP \u2192<\/a><\/div>\n<\/div>\n<\/section>\n

St\u0159iha\u010d: 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\/cs\/wp-json\/wp\/v2\/posts\/747","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/comments?post=747"}],"version-history":[{"count":1,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/posts\/747\/revisions"}],"predecessor-version":[{"id":748,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/posts\/747\/revisions\/748"}],"wp:attachment":[{"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/media?parent=747"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/categories?post=747"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/tags?post=747"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}