{"id":705,"date":"2026-06-01T05:26:10","date_gmt":"2026-06-01T05:26:10","guid":{"rendered":"https:\/\/planetary-gearboxes.com\/?p=705"},"modified":"2026-06-01T05:26:10","modified_gmt":"2026-06-01T05:26:10","slug":"planetary-gearbox-injection-molding-machine-servo-drive","status":"publish","type":"post","link":"https:\/\/planetary-gearboxes.com\/cs\/planetary-gearbox-injection-molding-machine-servo-drive\/","title":{"rendered":"Planetov\u00e1 p\u0159evodovka pro vst\u0159ikovac\u00ed lisy"},"content":{"rendered":"
<\/p>\n
\"Planet\u00e1rn\u00ed<\/p>\n
\n
Pr\u016fvodce aplikac\u00ed \u00b7 Vst\u0159ikov\u00e1n\u00ed \/ Up\u00edn\u00e1n\u00ed \/ \u0160roubov\u00e1n\u00ed \/ Vyhazova\u010d \u00b7 V\u00fdb\u011br p\u011bti os<\/div>\n

Planetov\u00e1 p\u0159evodovka pro vst\u0159ikovac\u00ed lisy \u2014
\nP\u011bt servoos, p\u011bt r\u016fzn\u00fdch specifikac\u00ed<\/h1>\n

V\u00fdb\u011br spr\u00e1vn\u00e9 konfigurace osy vst\u0159ikov\u00e1n\u00ed plast\u016f s planetovou p\u0159evodovkou je rozhodnut\u00ed, kter\u00e9 odli\u0161uje spolehliv\u00e9 pln\u011b elektrick\u00e9 stroje od t\u011bch, u kter\u00fdch se lo\u017eiska vy\u0159azuj\u00ed ka\u017ed\u00fdch 14 m\u011bs\u00edc\u016f. Pln\u011b elektrick\u00fd korejsk\u00fd vst\u0159ikovac\u00ed lis m\u00e1 p\u011bt servopoh\u00e1n\u011bn\u00fdch os \u2013 vst\u0159ikov\u00e1n\u00ed, ot\u00e1\u010den\u00ed \u0161neku, up\u00edn\u00e1n\u00ed, vyhazova\u010d a oto\u010dn\u00fd st\u016fl \u2013 ka\u017ed\u00e1 s zcela odli\u0161n\u00fd profil to\u010div\u00e9ho momentu, rozsah ot\u00e1\u010dek a po\u017eadavek na v\u016fli<\/strong>Pou\u017eit\u00ed stejn\u00e9 specifikace p\u0159evodovky na v\u0161ech p\u011bt os bu\u010f nadhodnot\u00ed t\u0159i z nich (pl\u00fdtv\u00e1n\u00ed 800 000\u20132 000 000 \u20a9 na stroj), nebo podhodnot\u00ed tu nejd\u016fle\u017eit\u011bj\u0161\u00ed a zp\u016fsob\u00ed p\u0159ed\u010dasn\u00e9 selh\u00e1n\u00ed lo\u017eisek b\u011bhem prvn\u00edho milionu cykl\u016f.<\/p>\n

Zobrazit \u0159adu EP-AF s vysokou pevnost\u00ed \u2192
\n<\/a><\/p>\n<\/div>\n<\/section>\n

<\/p>\n

\n

Korejsk\u00e9 vst\u0159ikov\u00e1n\u00ed plast\u016f \u2013 Pro\u010d je pohonn\u00fd syst\u00e9m kritickou cestou stroje<\/h2>\n

Probl\u00e9m v\u00fdb\u011bru vst\u0159ikolis\u016f s planetovou p\u0159evodovkou je sv\u00fdm rozsahem a d\u016fsledky jedine\u010dn\u011b korejsk\u00fd. Korea je jedn\u00edm z nejv\u011bt\u0161\u00edch sv\u011btov\u00fdch v\u00fdrobc\u016f vst\u0159ikovan\u00fdch plastov\u00fdch komponent\u016f \u2013 d\u00edl\u016f interi\u00e9r\u016f automobil\u016f, elektronick\u00fdch kryt\u016f, pouzder zdravotnick\u00fdch prost\u0159edk\u016f a obalov\u00fdch materi\u00e1l\u016f pro sektor spot\u0159ebn\u00edho zbo\u017e\u00ed. Korej\u0161t\u00ed v\u00fdrobci vst\u0159ikolis\u016f (IMM) a korejsk\u00e9 tov\u00e1rny, kter\u00e9 provozuj\u00ed japonsk\u00e9 a evropsk\u00e9 IMM, \u010del\u00ed stejn\u00fdm z\u00e1kladn\u00edm ekonomick\u00fdm probl\u00e9m\u016fm stroj\u016f: doba cyklu je p\u0159\u00edjmem a doba cyklu je \u0159\u00edzena syst\u00e9mem servopohonu.<\/p>\n

P\u0159echod z hydraulick\u00fdch na pln\u011b elektrick\u00e9 vst\u0159ikovac\u00ed lisy \u2013 kter\u00fd Korea p\u0159ijala rychleji ne\u017e v\u011bt\u0161ina trh\u016f, a to d\u00edky energeticky \u00fasporn\u00fdm vlastnostem korejsk\u00e9 v\u00fdroby \u2013 stav\u00ed servo p\u0159evodovku do centra v\u00fdkonu stroje. V hydraulick\u00e9m IMM obsluhuje jedno hydraulick\u00e9 \u010derpadlo v\u0161echny funkce postupn\u011b. V pln\u011b elektrick\u00e9m IMM m\u00e1 ka\u017ed\u00e1 osa vlastn\u00ed servomotor a p\u0159evodovku a v\u0161echny osy mohou pracovat sou\u010dasn\u011b \u2013 sv\u011brka se m\u016f\u017ee zav\u00edrat, zat\u00edmco \u0161roub plastifikuje materi\u00e1l pro dal\u0161\u00ed vst\u0159ik. Tento paraleln\u00ed provoz zn\u00e1sobuje propustnost, ale tak\u00e9 po\u010det rozhodnut\u00ed o v\u00fdb\u011bru p\u0159evodovky v ka\u017ed\u00e9m kusovn\u00edku stroje.<\/p>\n

Korej\u0161t\u00ed v\u00fdrobci pln\u011b elektrick\u00fdch IMM \u2013 v\u010detn\u011b t\u011bch, kte\u0159\u00ed dod\u00e1vaj\u00ed do dom\u00e1c\u00edho automobilov\u00e9ho sektoru (dr\u017e\u00e1ky bateriov\u00fdch \u010dl\u00e1nk\u016f Hyundai, Kia, Samsung SDI) a elektronick\u00e9ho sektoru (komponenty pouzder LG Electronics) \u2013 obvykle specifikuj\u00ed 5\u20138 servoos na stroj. Vzhledem k objemu v\u00fdroby stroj\u016f 200\u20132 000 kus\u016f ro\u010dn\u011b na hlavn\u00edho korejsk\u00e9ho v\u00fdrobce origin\u00e1ln\u00edho vybaven\u00ed (OEM) maj\u00ed rozhodnut\u00ed o specifikaci p\u0159evodovky v\u00fdznamn\u00fd vliv na kusovn\u00edk a kvalitu.<\/p>\n<\/section>\n

\"Aplikace<\/p>\n

\n

P\u011bt servoos \u2013 pro\u010d ka\u017ed\u00e1 vy\u017eaduje jinou specifikaci p\u0159evodovky<\/h2>\n

Z\u00e1kladn\u00ed chybou ve specifikaci vst\u0159ikov\u00e1n\u00ed planetov\u00fdch p\u0159evodovek je zach\u00e1zen\u00ed s p\u011bti servoosami jako s ekvivalentn\u00edmi servopohony, kter\u00e9 pot\u0159ebuj\u00ed stejnou p\u0159evodovku. To v\u0161ak nen\u00ed pravda. Ka\u017ed\u00e1 osa m\u00e1 jedine\u010dnou kombinaci \u0161pi\u010dkov\u00e9ho to\u010div\u00e9ho momentu, trval\u00e9ho to\u010div\u00e9ho momentu, rychlosti, citlivosti na v\u016fli, radi\u00e1ln\u00edho zat\u00ed\u017een\u00ed a tepeln\u00e9ho pracovn\u00edho cyklu, kter\u00e1 ukazuje na jinou \u0159adu a r\u00e1m.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Osa<\/th>\nV\u00fdstupn\u00ed rychlost<\/th>\n\u0160pi\u010dkov\u00fd \/ Trval\u00fd to\u010div\u00fd moment<\/th>\nPot\u0159eba zp\u011btn\u00e9 reakce<\/th>\nPrim\u00e1rn\u00ed omezen\u00ed<\/th>\nKorea Ever-Power<\/th>\n<\/tr>\n<\/thead>\n
\u2460 Osa vst\u0159ikov\u00e1n\u00ed<\/td>\n10\u2013200 mm\/s line\u00e1rn\u00ed<\/td>\n3\u20138\u00d7 \/ 1,0\u00d7<\/td>\nP1 (hmotnost st\u0159ely)<\/td>\n\u0160pi\u010dkov\u00fd to\u010div\u00fd moment + axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed<\/td>\nEP-AF P1<\/a> (vysok\u00fd axi\u00e1ln\u00ed)<\/td>\n<\/tr>\n
\u2461 Ot\u00e1\u010den\u00ed \u0161roubu<\/td>\n5\u2013200 ot.\/min<\/td>\n1,5\u00d7 \/ 0,8\u00d7<\/td>\nP2 (pouze rychlost)<\/td>\nTrval\u00fd to\u010div\u00fd moment \u00d7 hodiny<\/td>\nEP-AB P2<\/a> nebo EP-BPG<\/td>\n<\/tr>\n
\u2462 Svorka (p\u0159ep\u00ednac\u00ed)<\/td>\n50\u2013300 mm\/s line\u00e1rn\u00ed<\/td>\n2\u00d7 \/ 0,6\u00d7<\/td>\nP1\u2013P2 (pozice)<\/td>\nPo\u010det cykl\u016f \u00d7 dopad<\/td>\nEP-AB P1<\/a><\/td>\n<\/tr>\n
\u2463 Vyhazova\u010d<\/td>\n20\u2013150 mm\/s line\u00e1rn\u00ed<\/td>\n2,5\u00d7 \/ 0,5\u00d7<\/td>\nP2 (pouze pozice)<\/td>\nKompaktn\u00ed, st\u0159edn\u00ed to\u010div\u00fd moment<\/td>\nEP-AB P2 (men\u0161\u00ed r\u00e1m)<\/td>\n<\/tr>\n
\u2464 Oto\u010dn\u00fd st\u016fl<\/td>\nIndex ot\u00e1\u010dek 1\u201330 ot.\/min<\/td>\n1,5\u00d7 \/ 0,7\u00d7<\/td>\nP0 (p\u0159esnost d\u00edlu)<\/td>\nP\u0159esnost indexu<\/td>\nEP-AFH<\/a> nebo EP-AB P0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Tabulka okam\u017eit\u011b ukazuje n\u00e1klady na nadm\u011brnou specifikaci. Pokud korejsk\u00fd konstrukt\u00e9r IMM specifikuje EP-AFH (\u22641 arcmin standard, nejvy\u0161\u0161\u00ed p\u0159esnost) na v\u0161ech p\u011bti os\u00e1ch, proto\u017ee se jedn\u00e1 o jednoduch\u00fd a bezpe\u010dn\u00fd v\u00fdchoz\u00ed parametr, plat\u00ed pr\u00e9mii na os\u00e1ch \u2461\u2462\u2463, kde je P1 nebo P2 pln\u011b dosta\u010duj\u00edc\u00ed. Spr\u00e1vn\u00e1 specifikace osa po ose poskytuje ekvivalentn\u00ed v\u00fdkon stroje p\u0159i v\u00fdrazn\u011b ni\u017e\u0161\u00edch n\u00e1kladech na kusovn\u00edk p\u0159evodovky.<\/p>\n<\/section>\n

<\/p>\n

\n

Osa vst\u0159ikov\u00e1n\u00ed \u2014 pom\u011br maxim\u00e1ln\u00edho to\u010div\u00e9ho momentu a axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed od protitlaku taveniny<\/h2>\n

Osa vst\u0159ikov\u00e1n\u00ed poh\u00e1n\u00ed kuli\u010dkov\u00fd \u0161roub, kter\u00fd p\u0159ev\u00e1d\u00ed rota\u010dn\u00ed pohyb serva na line\u00e1rn\u00ed s\u00edlu, kter\u00e1 tla\u010d\u00ed vst\u0159ikovac\u00ed \u0161roub (plun\u017er) dop\u0159edu a vst\u0159ikuje roztaven\u00fd plast do dutiny formy pod vysok\u00fdm tlakem (obvykle tlak taveniny 800\u20132 500 bar\u016f). Toto je osa s nejvy\u0161\u0161\u00edm \u0161pi\u010dkov\u00fdm kroutic\u00edm momentem ve stroji \u2013 a je to osa, kterou korej\u0161t\u00ed konstrukt\u00e9\u0159i IMM nej\u010dast\u011bji podce\u0148uj\u00ed, proto\u017ee se zam\u011b\u0159uj\u00ed na trval\u00fd kroutic\u00ed moment sp\u00ed\u0161e ne\u017e na \u0161pi\u010dkov\u00fd.<\/p>\n

\n
\n

Profil maxim\u00e1ln\u00edho to\u010div\u00e9ho momentu osy vst\u0159ikov\u00e1n\u00ed<\/strong> li\u0161\u00ed se od v\u0161ech ostatn\u00edch servoos stroj\u016f: b\u011bhem f\u00e1ze pln\u011bn\u00ed servomotor dod\u00e1v\u00e1 nep\u0159etr\u017eit\u00fd to\u010div\u00fd moment, aby udr\u017eel rychlost vst\u0159ikov\u00e1n\u00ed proti rostouc\u00edmu tlaku taveniny. P\u0159i p\u0159echodu z pln\u011bn\u00ed do pln\u011bn\u00ed (bod \u201epol\u0161t\u00e1\u0159e\u201c) mus\u00ed servo okam\u017eit\u011b poskytnout 3\u20135n\u00e1sobek plnic\u00edho momentu, aby stla\u010dil taveninu proti uzav\u0159en\u00e9 plo\u0161e formy. Tento vrchol je kr\u00e1tk\u00fd (50\u2013200 ms), ale vyskytuje se p\u0159i ka\u017ed\u00e9m vst\u0159iku \u2013 p\u0159i 8sekundov\u00e9 dob\u011b cyklu a 6 000 hodin\u00e1ch ro\u010dn\u011b se vyskytuje p\u0159ibli\u017en\u011b 2,7 milionkr\u00e1t ro\u010dn\u011b.<\/p>\n

\n

OSA VST\u0158IKOV\u00c1N\u00cd \u2014 AXI\u00c1LN\u00cd S\u00cdLA ZP\u011aTN\u00ddM TLAKOM<\/p>\n

B\u011bhem zatahov\u00e1n\u00ed \u0161roubu (f\u00e1ze plastifikace):
\nProtitlak taveniny p\u016fsob\u00ed na plochu \u010dela \u0161roubu F_axi\u00e1ln\u00ed = P_zadn\u00ed \u00d7 A_\u0161roub
\nP_back = nastaven\u00ed protitlaku (MPa, typicky 5\u201330 MPa)
\nA_\u0161roub = plocha pr\u016f\u0159ezu \u0161roubu (mm\u00b2)<\/p>\n

P\u0159\u00edklad: \u0160roub \u00d850 mm, P_back = 15 MPa:
\nA_\u0161roub = \u03c0 \u00d7 25\u00b2 = 1 963 mm\u00b2
\nF_axi\u00e1ln\u00ed = 15 \u00d7 1,963 = 29 450 N (\u22483 tuny)<\/span><\/p>\n

Tato axi\u00e1ln\u00ed s\u00edla p\u016fsob\u00ed na p\u0159evodovku osy vst\u0159ikov\u00e1n\u00ed
\nv\u00fdstupn\u00ed h\u0159\u00eddel b\u011bhem cel\u00e9 f\u00e1ze plastifikace
\n(obvykle 2\u20134 sekundy na cyklus).<\/p>\n

P\u0159i 2,7 mil. cyklech\/rok \u2192 5,4\u201310,8 mil. s\/rok
\ntrval\u00e9ho axi\u00e1ln\u00edho zat\u00ed\u017een\u00ed v\u00fdstupn\u00edho lo\u017eiska.<\/p>\n<\/div>\n<\/div>\n

Axi\u00e1ln\u00ed s\u00edla z protitlaku taveniny je polo\u017ekou specifikace, kter\u00e1 se p\u0159i v\u00fdb\u011bru p\u0159evodovky s osou vst\u0159ikov\u00e1n\u00ed nej\u010dast\u011bji opom\u00edj\u00ed. Korej\u0161t\u00ed konstrukt\u00e9\u0159i IMM, kte\u0159\u00ed vyb\u00edraj\u00ed p\u0159evodovku s osou vst\u0159ikov\u00e1n\u00ed pouze na z\u00e1klad\u011b v\u00fdstupn\u00edho kroutic\u00edho momentu \u2013 co\u017e je spr\u00e1vn\u00e9 pro rota\u010dn\u00ed pohon \u2013 zcela opom\u00edjej\u00ed zat\u00ed\u017een\u00ed axi\u00e1ln\u00edho lo\u017eiska. Vysoce tuh\u00e1 \u0159ada korejsk\u00fdch Ever-Power EP-AF je standardn\u00edm doporu\u010den\u00edm pro pohony s osou vst\u0159ikov\u00e1n\u00ed pr\u00e1v\u011b proto, \u017ee jej\u00ed zv\u011bt\u0161en\u00fd v\u00fdstupn\u00ed h\u0159\u00eddel a vylep\u0161en\u00e9 uspo\u0159\u00e1d\u00e1n\u00ed lo\u017eisek poskytuj\u00ed podstatn\u011b vy\u0161\u0161\u00ed axi\u00e1ln\u00ed \u00fanosnost p\u0159i stejn\u00e9 velikosti r\u00e1mu a jmenovit\u00e9m kroutic\u00edm momentu jako EP-AB.<\/p>\n

Pouzdro IMM pro korejsk\u00e9 automobily \u2013 polypropylenov\u00e1 sou\u010d\u00e1st n\u00e1razn\u00edku: <\/strong>
\nU d\u00edl\u010d\u00edch komponent\u016f automobilov\u00fdch n\u00e1razn\u00edk\u016f z polypropylenu vyr\u00e1b\u011bn\u00fdch korejskou spole\u010dnost\u00ed IMM s n\u00e1honem 500T doch\u00e1zelo k opakovan\u00fdm poruch\u00e1m lo\u017eisek p\u0159evodovky vst\u0159ikovac\u00ed osy po 14\u201318 m\u011bs\u00edc\u00edch. P\u016fvodn\u00ed specifikace (EP-AB140 P1) spl\u0148ovala po\u017eadavek na to\u010div\u00fd moment, ale ignorovala axi\u00e1ln\u00ed s\u00edlu protitlaku \u0161roubu o pr\u016fm\u011bru 60 mm, kter\u00e1 dosahovala p\u0159ibli\u017en\u011b 42 000 N. P\u0159echod na EP-AF140 (stejn\u00fd r\u00e1m, 2,3\u00d7 vy\u0161\u0161\u00ed axi\u00e1ln\u00ed \u00fanosnost) poruchy lo\u017eisek zcela vy\u0159e\u0161il \u2013 v dob\u011b psan\u00ed tohoto textu trval 28 m\u011bs\u00edc\u016f nep\u0159etr\u017eit\u00e9ho provozu bez probl\u00e9m\u016f s lo\u017eisky.<\/span><\/div>\n<\/div>\n
\n

\"Axi\u00e1ln\u00ed<\/p>\n

\n
Kontroln\u00ed seznam specifikac\u00ed osy vst\u0159ikov\u00e1n\u00ed<\/div>\n
\u2713 Trval\u00fd to\u010div\u00fd moment z rychlosti pln\u011bn\u00ed
\n\u2713 Maxim\u00e1ln\u00ed to\u010div\u00fd moment na t\u011bsn\u011bn\u00ed (3\u20135\u00d7 kontinu\u00e1ln\u011b)
\n\u2713 Axi\u00e1ln\u00ed s\u00edla z protitlaku
\n\u2713 Cykly\/rok \u00d7 doba trv\u00e1n\u00ed \u0161pi\u010dkov\u00e9ho to\u010div\u00e9ho momentu
\n\u2713 Pro axi\u00e1ln\u00ed \u00fanosnost specifikujte EP-AF (ne EP-AB)
\n\u2713 V\u016fle P1 adekv\u00e1tn\u00ed (hmotnost vst\u0159iku, ne p\u0159esnost CNC)<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

Osa ot\u00e1\u010den\u00ed \u0161roubu \u2013 nejvy\u0161\u0161\u00ed tepeln\u00fd pracovn\u00ed cyklus ve stroji<\/h2>\n

Osa ot\u00e1\u010den\u00ed \u0161neku poh\u00e1n\u00ed vst\u0159ikovac\u00ed \u0161nek do rotace, \u010d\u00edm\u017e doch\u00e1z\u00ed k plastifikaci (taven\u00ed) polymern\u00ed prysky\u0159ice b\u011bhem f\u00e1ze zotaven\u00ed ka\u017ed\u00e9ho cyklu. Na rozd\u00edl od osy vst\u0159ikov\u00e1n\u00ed, kter\u00e1 pracuje s vysok\u00fdm to\u010div\u00fdm momentem po kr\u00e1tkou dobu, pracuje osa ot\u00e1\u010den\u00ed \u0161neku s m\u00edrn\u00fdm to\u010div\u00fdm momentem po celou dobu zotaven\u00ed, co\u017e m\u016f\u017ee p\u0159i efektivn\u00edm vst\u0159ikov\u00e1n\u00ed p\u0159edstavovat 40\u201370% celkov\u00e9 doby cyklu.<\/p>\n

D\u00edky tomuto nep\u0159etr\u017eit\u00e9mu provozu se st\u0159edn\u00edm to\u010div\u00fdm momentem je osa ot\u00e1\u010den\u00ed \u0161roubu pohonem s nejvy\u0161\u0161\u00edm tepeln\u00fdm pracovn\u00edm cyklem ve stroji. P\u0159i dob\u011b cyklu 60% v nep\u0159etr\u017eit\u00e9 t\u0159\u00edsm\u011bnn\u00e9 korejsk\u00e9 v\u00fdrob\u011b (6 300 hodin ro\u010dn\u011b) nashrom\u00e1\u017ed\u00ed p\u0159evodovka \u0161roubov\u00e9ho pohonu p\u0159ibli\u017en\u011b 3 780 provozn\u00edch hodin ro\u010dn\u011b \u2013 co\u017e je srovnateln\u00e9 s vysokocyklov\u00fdm pohonem dopravn\u00edku, nikoli s p\u0159eru\u0161ovanou servo osou. Teplotn\u00ed korekce z modulu 3 \u010dl\u00e1nku 15 se uplat\u0148uje p\u0159\u00edmo: p\u0159i zv\u00fd\u0161en\u00fdch korejsk\u00fdch letn\u00edch teplot\u00e1ch v tov\u00e1rn\u011b na plasty m\u016f\u017ee teplota sk\u0159\u00edn\u011b p\u0159evodovky \u0161roubov\u00e9ho pohonu dos\u00e1hnout 75\u201385 \u00b0C, co\u017e sni\u017euje \u017eivotnost plastick\u00e9ho maziva pod katalogovou hodnotu 20 000 hodin.<\/p>\n

Stupe\u0148 v\u016fle na ose ot\u00e1\u010den\u00ed \u0161roubu je skute\u010dn\u011b irelevantn\u00ed \u2013 osa \u0159\u00edd\u00ed rychlost ot\u00e1\u010den\u00ed \u0161roubu, nikoli jeho polohu. \u0160roub se p\u0159i ka\u017ed\u00e9m v\u00fdst\u0159elu m\u00edrn\u011b pohne zp\u011bt (axi\u00e1ln\u011b, nikoli rota\u010dn\u011b), ale p\u0159evodovka rota\u010dn\u00ed osy vn\u00edm\u00e1 pouze to\u010div\u00fd moment ze smyku materi\u00e1lu a odporu \u0161roubovice letu \u0161roubu. Spr\u00e1vn\u00e1 specifikace je P2 (\u22645 \u00fahlov\u00fdch minut); dodate\u010dn\u00e9 n\u00e1klady P0 nebo P1 na t\u00e9to ose neposkytuj\u00ed \u017e\u00e1dnou funk\u010dn\u00ed v\u00fdhodu.<\/p>\n

Pro\u010d je EP-BPG vynikaj\u00edc\u00ed volbou pro rotaci \u0161roub\u016f: <\/strong>
\nTen\/Ta\/To Energeticky \u00fasporn\u00e1 \u0159ada EP-BPG<\/a> (\u00fa\u010dinnost \u226597%, p\u0159\u00edruba IEC pro n\u00e1hradu \u0161neku) je siln\u00fdm kandid\u00e1tem pro osu ot\u00e1\u010den\u00ed \u0161roubu, pokud stroj pou\u017e\u00edv\u00e1 pro pohon \u0161roubu induk\u010dn\u00ed motor \u2013 co\u017e je b\u011b\u017en\u00e9 u korejsk\u00fdch st\u0159edn\u011b velk\u00fdch IMM, kde jsou servomotory \u0159\u00edzeny pouze osy vst\u0159ikov\u00e1n\u00ed a up\u00edn\u00e1n\u00ed. P\u0159\u00edruba BPG dle normy IEC pasuje na motor bez adapt\u00e9ru, konstrukce s ut\u011bsn\u011bn\u00fdm mazivem zvl\u00e1d\u00e1 nep\u0159etr\u017eit\u00e9 tepeln\u00e9 zat\u00ed\u017een\u00ed a v\u016fle P2 je standardn\u00ed. U pln\u011b elektrick\u00fdch stroj\u016f, kde pohon \u0161roubu pou\u017e\u00edv\u00e1 servomotor, poskytuje EP-AB P2 na p\u0159\u00edslu\u0161n\u00e9m r\u00e1mu stejnou tepelnou kapacitu s rozhran\u00edm adapt\u00e9ru servomotoru.<\/span><\/div>\n<\/section>\n

<\/p>\n

\n

Osa up\u00edn\u00e1n\u00ed \u2013 po\u017eadavek na \u017eivotnost miliardy cykl\u016f a r\u00e1zov\u00e9 zat\u00ed\u017een\u00ed p\u0159ep\u00edna\u010de<\/h2>\n

Osa up\u00edn\u00e1n\u00ed zav\u00edr\u00e1 a otev\u00edr\u00e1 formu v ka\u017ed\u00e9m cyklu. U korejsk\u00e9ho IMM pracuj\u00edc\u00edho s 8sekundov\u00fdm cyklem v nep\u0159etr\u017eit\u00e9m t\u0159\u00edsm\u011bnn\u00e9m provozu dokon\u010d\u00ed osa up\u00edn\u00e1n\u00ed p\u0159ibli\u017en\u011b 2,7 milionu cykl\u016f otev\u0159\u00edt-zav\u0159\u00edt ro\u010dn\u011b. B\u011bhem o\u010dek\u00e1van\u00e9 15let\u00e9 \u017eivotnosti korejsk\u00e9ho IMM se toto \u010d\u00edslo nashrom\u00e1\u017ed\u00ed na p\u0159ibli\u017en\u011b 40 milion\u016f cykl\u016f up\u00edn\u00e1n\u00ed \u2013 ka\u017ed\u00fd z nich p\u0159edstavuje pohyb o cel\u00fd zdvih z otev\u0159en\u00ed formy do uzav\u0159en\u00ed formy a zp\u011bt.<\/p>\n

V\u011bt\u0161ina korejsk\u00fdch IMM pou\u017e\u00edv\u00e1 pro osu up\u00edn\u00e1n\u00ed p\u0159ep\u00ednac\u00ed mechanismus \u2013 t\u00e1hlo, kter\u00e9 zesiluje s\u00edlu servomotoru k dosa\u017een\u00ed po\u017eadovan\u00e9 up\u00ednac\u00ed s\u00edly (obvykle 100\u20135 000 kN u korejsk\u00fdch v\u00fdrobn\u00edch stroj\u016f). P\u0159ep\u00ednac\u00ed mechanismus vytv\u00e1\u0159\u00ed charakteristick\u00fd rychlostn\u00ed profil: pomal\u00fd p\u0159i otev\u0159en\u00ed formy a t\u00e9m\u011b\u0159 \u00fapln\u00e9m zav\u0159en\u00ed (pro ochranu formy), rychl\u00fd v polovin\u011b zdvihu a n\u00e1hl\u00e9 zpomalen\u00ed p\u0159i pln\u00e9m uta\u017een\u00ed. Toto zpomalen\u00ed vytv\u00e1\u0159\u00ed kr\u00e1tkodob\u00e9 r\u00e1zov\u00e9 zat\u00ed\u017een\u00ed na v\u00fdstupu p\u0159evodovky \u2013 \u0161pi\u010dku to\u010div\u00e9ho momentu na konci ka\u017ed\u00e9ho up\u00ednac\u00edho zdvihu, kter\u00e1 m\u016f\u017ee dos\u00e1hnout 2\u20132,5n\u00e1sobku trval\u00e9ho jmenovit\u00e9ho to\u010div\u00e9ho momentu.<\/p>\n

V\u00fdpo\u010det konstruk\u010dn\u00ed \u017eivotnosti p\u0159evodovky pro osu up\u00edn\u00e1n\u00ed mus\u00ed zohled\u0148ovat tento po\u010det cykl\u016f \u0161pi\u010dkov\u00e9ho to\u010div\u00e9ho momentu. Pou\u017eit\u00ed vzorce pro \u017eivotnost lo\u017eiska L10 z \u010dl\u00e1nku 16 se skute\u010dn\u00fdm ekvivalentn\u00edm dynamick\u00fdm zat\u00ed\u017een\u00edm (v\u00e1\u017een\u00e1 kombinace p\u0159\u00edsp\u011bvk\u016f \u0161pi\u010dkov\u00e9ho a trval\u00e9ho to\u010div\u00e9ho momentu b\u011bhem cyklu) nam\u00edsto pouze trval\u00e9ho to\u010div\u00e9ho momentu vede k p\u0159esn\u011bj\u0161\u00ed predikci \u017eivotnosti \u2013 a obvykle ukazuje, \u017ee specifikace EP-AB P1 je dostate\u010dn\u00e1 pro standardn\u00ed korejsk\u00e9 aplikace up\u00edn\u00e1n\u00ed IMM, zat\u00edmco vysokorychlostn\u00ed stroje s t\u011b\u017ek\u00fdmi up\u00edn\u00e1n\u00edmi mohou vy\u017eadovat EP-AF P1 pro dodate\u010dnou \u00fanosnost lo\u017eiska.<\/p>\n

\n

UP\u00cdNAC\u00cd OSA \u2013 EKVIVALENTN\u00cd DYNAMICK\u00c9 ZAT\u00cd\u017dEN\u00cd B\u011aHEM CYKLU<\/p>\n

Rozklad cyklu (8sekundov\u00fd cyklus):
\nRychl\u00fd posuv (3 s): T_cont = 120 N\u00b7m
\nZpomalen\u00ed (0,3 s): T_peak = 280 N\u00b7m (2,3\u00d7 kontinu\u00e1ln\u00ed)
\nProdleva sev\u0159en\u00ed (3 s): T_hold = 30 N\u00b7m
\nOtev\u0159en\u00fd zdvih (1,7 s): T_cont = 100 N\u00b7mEkvivalentn\u00ed dynamick\u00fd to\u010div\u00fd moment (v\u00e1\u017een\u00fd L10):
\nT_ekvivalent = [(T\u2081\u00b3\u00d7t\u2081 + T\u2082\u00b3\u00d7t\u2082 + \u2026) \/ t_celkem]^(1\/3)
\nT_eq = [(120\u00b3\u00d73 + 280\u00b3\u00d70,3 + 30\u00b3\u00d73 + 100\u00b3\u00d71,7) \/ 8]^(1\/3)
\nT_eq = [(5,18M + 65,9M + 0,081M + 1,70M) \/ 8]^(1\/3)
\nT_eq = [9,11M]^(1\/3) = 208 N\u00b7m<\/span><\/p>\n

vs. T zvolen\u00fd vrcholem = 280 N\u00b7m (34% nadm\u011brn\u00e1 specifikace p\u0159i pou\u017eit\u00ed vrcholu)
\nvs. T zvolen\u00fd pro kontinu\u00e1ln\u00ed m\u011b\u0159en\u00ed = 120 N\u00b7m (42% pod specifikac\u00ed, pokud se pou\u017e\u00edv\u00e1 pouze kontinu\u00e1ln\u00ed m\u011b\u0159en\u00ed)<\/p>\n<\/div>\n<\/div>\n

Tento v\u00fdpo\u010det je spr\u00e1vn\u00fdm z\u00e1kladem pro v\u00fdb\u011br p\u0159evodovky s up\u00ednac\u00ed osou. Pou\u017eit\u00ed pouze \u0161pi\u010dkov\u00e9ho to\u010div\u00e9ho momentu (280 N\u00b7m) naddimenzuje p\u0159evodovku o 341 TP3T; pou\u017eit\u00ed pouze trval\u00e9ho to\u010div\u00e9ho momentu (120 N\u00b7m) ji poddimenzuje o 421 TP3T. Metoda ekvivalentn\u00edho dynamick\u00e9ho zat\u00ed\u017een\u00ed, kter\u00e1 je standardn\u00ed v in\u017een\u00fdrsk\u00e9m procesu aplikace Korea Ever-Power EP, spr\u00e1vn\u011b identifikuje 208 N\u00b7m jako efektivn\u00ed v\u00fdb\u011brov\u00fd to\u010div\u00fd moment.<\/p>\n<\/section>\n

<\/p>\n

\n

Oto\u010dn\u00fd st\u016fl a vkl\u00e1dac\u00ed stanice \u2013 kde na p\u0159esnosti skute\u010dn\u011b z\u00e1le\u017e\u00ed<\/h2>\n
\n
\n

Korejsk\u00e9 vst\u0159ikovac\u00ed lisy (IMM) vyr\u00e1b\u011bj\u00edc\u00ed v\u00edcekomponentn\u00ed d\u00edly \u2013 obst\u0159ikovan\u00e9 konektory, vst\u0159ikovan\u00e9 kovov\u00e9 komponenty, dvoubarevn\u00e9 kosmetick\u00e9 d\u00edly \u2013 pou\u017e\u00edvaj\u00ed oto\u010dn\u00fd st\u016fl nebo indexovac\u00ed desku, kter\u00e1 ot\u00e1\u010d\u00ed formu mezi vst\u0159ikovac\u00edmi stanicemi. Oto\u010dn\u00fd st\u016fl je jedinou osou ve vst\u0159ikovac\u00edm lis\u011b, kde je v\u016fle skute\u010dn\u011b d\u016fle\u017eit\u00e1 pro kvalitu d\u00edlu.<\/p>\n

Po\u017eadavek na p\u0159esnost indexov\u00e1n\u00ed vych\u00e1z\u00ed z geometrie d\u00edlu: u dvoubarevn\u00e9ho vst\u0159ikovan\u00e9ho d\u00edlu mus\u00ed hradlov\u00e1 li\u0161ta druh\u00e9 barvy dosednout do \u00b10,3\u20130,5 mm od hrany prvku prvn\u00ed barvy. P\u0159i typick\u00e9m polom\u011bru oto\u010dn\u00e9ho stolu 200\u2013400 mm se to prom\u00edt\u00e1 do po\u017eadovan\u00e9 p\u0159esnosti indexov\u00e1n\u00ed:<\/p>\n

Po\u017eadov\u00e1no: \u0394x \u2264 0,3 mm p\u0159i r = 300 mm
\n\u03b8_max = \u0394x\/r = 0,3\/300 = 0,001 rad = 3,4 arcmin
\nRozpo\u010det p\u0159evodovky (40% z celkem): 1,4 \u00fahlov\u00fdch minut \u2192 P0 (\u22641\u2032) dostate\u010dn\u00e9 s rezervou
\n\u2192 EP-AFH (standard \u22641\u2032) eliminuje krok v\u00fdb\u011bru jakosti
\n\u2192 P1 (\u22643\u2032) mezn\u00ed \u2013 nejhor\u0161\u00ed mo\u017en\u00fd p\u0159\u00edpad m\u016f\u017ee p\u0159ekro\u010dit rozpo\u010det<\/p>\n<\/div>\n

Ultrap\u0159esn\u00e1 \u0159ada EP-AFH je standardn\u00ed specifikac\u00ed pro korejsk\u00e9 pohony oto\u010dn\u00fdch stol\u016f IMM. Jej\u00ed standard \u22641 arcmin (\u017e\u00e1dn\u00fd k\u00f3d t\u0159\u00eddy, \u017e\u00e1dn\u00e1 odchylka mezi jednotkami v r\u00e1mci t\u0159\u00eddy) poskytuje rezervu p\u0159esnosti, kterou P1 nem\u016f\u017ee spolehliv\u011b dos\u00e1hnout u ka\u017ed\u00e9 v\u00fdrobn\u00ed jednotky. Nestandardn\u00ed p\u0159evodov\u00e9 pom\u011bry dostupn\u00e9 u EP-AFH (i=3 a\u017e i=100 v jednom stupni) se p\u0159izp\u016fsobuj\u00ed geometrii karuselu, ani\u017e by vy\u017eadovaly objedn\u00e1vku nestandardn\u00edho p\u0159evodu, kter\u00e1 by prodlou\u017eila dodac\u00ed lh\u016ftu.<\/p>\n

Pro korejsk\u00e9 IMM vyr\u00e1b\u011bj\u00edc\u00ed vst\u0159ikovan\u00e9 automobilov\u00e9 konektory, v\u010detn\u011b kompaktn\u00edch mechanism\u016f pro mont\u00e1\u017e Kompaktn\u00ed \u0159ada EP-ADS<\/a> U indexov\u00fdch pohon\u016f s omezen\u00fdm prostorem, kde se kovov\u00e1 vlo\u017eka mus\u00ed v dutin\u011b formy zarovnat s toleranc\u00ed \u00b10,1 mm, je hodnota P0 povinn\u00e1 bez ohledu na polom\u011br oto\u010dn\u00e9ho stolu \u2013 chyba polohy vlo\u017eky se p\u0159\u00edmo p\u0159id\u00e1v\u00e1 k rozm\u011brov\u00e9 toleranci kone\u010dn\u00e9ho d\u00edlu a nelze ji d\u00e1le korigovat.<\/p>\n<\/div>\n

\n

\"\u0158ezov\u00fd<\/p>\n

\n
Rota\u010dn\u00ed osa pro dvoubarevnou \/ vlo\u017eenou formu:<\/div>\n
Dvoubarevn\u00e1 \u010d\u00e1st: \u22640,3 mm \u2192 P0 \u2713
\nVlo\u017eka do li\u0161ty: \u22640,1 mm \u2192 P0 povinn\u00e9
\nJednobarevn\u00fd index: \u22641,0 mm \u2192 P1 OKEP-AFH: \u22641\u2032 standard \u2192 v\u0161echny p\u0159\u00edpady \u2713
\n(nen\u00ed nutn\u00fd v\u00fdb\u011br stupn\u011b)<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

\u017divotnost vst\u0159ikovac\u00edho lisu \u2013 Pro\u010d je n\u00e1sobek maxim\u00e1ln\u00edho to\u010div\u00e9ho momentu kritick\u00fdm krit\u00e9riem v\u00fdb\u011bru<\/h2>\n

Vst\u0159ikovac\u00ed lis na plasty dosahuje po\u010dtu cykl\u016f, kter\u00e9mu se \u017e\u00e1dn\u00fd jin\u00fd korejsk\u00fd pr\u016fmyslov\u00fd stroj nep\u0159ibli\u017euje. Korejsk\u00fd stroj na balen\u00ed potravin IMM pracuj\u00edc\u00ed s 8sekundov\u00fdmi cykly v nep\u0159etr\u017eit\u00e9m t\u0159\u00edsm\u011bnn\u00e9m provozu dokon\u010d\u00ed p\u0159ibli\u017en\u011b 2,7 milionu cykl\u016f ro\u010dn\u011b. B\u011bhem 15let\u00e9 \u017eivotnosti stroje je to 40 milion\u016f cykl\u016f. U p\u0159evodovek na os\u00e1ch vst\u0159ikov\u00e1n\u00ed a up\u00edn\u00e1n\u00ed \u2013 kter\u00e9 ob\u011b za\u017e\u00edvaj\u00ed ud\u00e1lost \u0161pi\u010dkov\u00e9ho kroutic\u00edho momentu v ka\u017ed\u00e9m cyklu \u2013 je kumulativn\u00ed po\u010det ud\u00e1lost\u00ed \u0161pi\u010dkov\u00e9ho kroutic\u00edho momentu dominantn\u00edm faktorem \u00fanavov\u00e9 \u017eivotnosti.<\/p>\n

P\u0159evodovky \u0159ady Ever-Power EP od spole\u010dnosti Korea jsou dimenzov\u00e1ny jak na jmenovit\u00fd jmenovit\u00fd to\u010div\u00fd moment (pro nep\u0159etr\u017eit\u00fd provoz), tak na \u0161pi\u010dkov\u00fd to\u010div\u00fd moment (obvykle 2\u20133\u00d7 jmenovit\u00fd to\u010div\u00fd moment, pro kr\u00e1tkodob\u00e9 ud\u00e1losti nep\u0159esahuj\u00edc\u00ed definovanou dobu trv\u00e1n\u00ed a po\u010det za hodinu). U aplikac\u00ed vst\u0159ikov\u00e1n\u00ed plast\u016f je relevantn\u00ed ot\u00e1zkou, zda ud\u00e1losti \u0161pi\u010dkov\u00e9ho to\u010div\u00e9ho momentu \u2013 ka\u017ed\u00e1 trvaj\u00edc\u00ed 50\u2013300 ms p\u0159i 2\u20133\u00d7 jmenovit\u00fd to\u010div\u00fd moment \u2013 \u200b\u200bhromad\u00ed \u00fanavov\u00e9 po\u0161kozen\u00ed zub\u016f ozuben\u00e9ho kola takovou rychlost\u00ed, \u017ee by se \u017eivotnost omezila pod katalogovou hodnotu.<\/p>\n

\n
Ud\u00e1losti vrcholov\u00e9ho to\u010div\u00e9ho momentu \u2013 IMM vs. katalogov\u00e9 p\u0159edpoklady<\/div>\n
\n\n\n\n\n\n\n\n\n
Parametr<\/th>\nKatalog Nanebevzet\u00ed<\/th>\nKorejsk\u00e1 realita IMM<\/th>\nV\u00fdrok<\/th>\n<\/tr>\n<\/thead>\n
Vrchol ud\u00e1lost\u00ed za hodinu<\/td>\n\u22641 000\/hod<\/td>\n450\/hod (8s cyklus)<\/td>\n\u2713 V katalogu<\/td>\n<\/tr>\n
N\u00e1sobek \u0161pi\u010dkov\u00e9ho to\u010div\u00e9ho momentu<\/td>\n\u22643\u00d7 jmenovit\u00fd<\/td>\n2,3\u20134\u00d7 jmenovit\u00fd v\u00fdkon<\/td>\n\u26a0 Potvr\u010fte pro ka\u017ed\u00fd stroj<\/td>\n<\/tr>\n
Trv\u00e1n\u00ed \u0161pi\u010dky na ud\u00e1lost<\/td>\n\u2264200 ms<\/td>\n50\u2013300 ms<\/td>\n\u2713 V katalogu<\/td>\n<\/tr>\n
Ro\u010dn\u00ed maxim\u00e1ln\u00ed po\u010det<\/td>\n~1 milion\/rok<\/td>\n2,7 milionu\/rok<\/td>\nPotvr\u010fte z\u00e1klad \u017eivotn\u00edho cyklu<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

N\u00e1sobek \u0161pi\u010dkov\u00e9ho to\u010div\u00e9ho momentu je nejd\u016fle\u017eit\u011bj\u0161\u00edm parametrem k ov\u011b\u0159en\u00ed. Pokud vst\u0159ikovac\u00ed s\u00edla ve f\u00e1zi pln\u011bn\u00ed vede k n\u00e1sobku to\u010div\u00e9ho momentu v\u011bt\u0161\u00edmu ne\u017e 3\u00d7, aplika\u010dn\u00ed in\u017een\u00fdrstv\u00ed Korea Ever-Power p\u0159epo\u010d\u00edt\u00e1 \u017eivotnost s pou\u017eit\u00edm skute\u010dn\u00e9ho pom\u011bru \u0161pi\u010dkov\u00fd\/kontinu\u00e1ln\u00ed moment pro specifikaci va\u0161eho stroje.<\/p>\n<\/div>\n<\/section>\n

<\/p>\n

\n

Optimalizovan\u00e1 kusovn\u00edkov\u00e1 z\u00e1soba p\u0159evodovky IMM \u2013 Porovn\u00e1n\u00ed n\u00e1klad\u016f: V\u00fdchoz\u00ed vs. specifikace specifick\u00e1 pro osu<\/h2>\n

N\u00e1sleduj\u00edc\u00ed srovn\u00e1n\u00ed kusovn\u00edku ilustruje dopad spr\u00e1vn\u00e9 specifikace osa po ose na n\u00e1klady oproti b\u011b\u017en\u00e9mu v\u00fdchoz\u00edmu nastaven\u00ed korejsk\u00fdch OEM, kter\u00e9 spo\u010d\u00edv\u00e1 v specifikaci identick\u00fdch p\u0159evodovek nap\u0159\u00ed\u010d v\u0161emi servo osami. Tento p\u0159\u00edklad pou\u017e\u00edv\u00e1 korejsk\u00fd pln\u011b elektrick\u00fd IMM 200T s p\u011bti servo osami.<\/p>\n

\"Plan\u00e1rn\u00ed<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
Osa<\/th>\nV\u00fdchoz\u00ed specifikace (EP-AFH \u00d7 5)<\/th>\nOptimalizovan\u00e1 specifikace<\/th>\n\u00daspora n\u00e1klad\u016f \/ osa<\/th>\n<\/tr>\n<\/thead>\n
\u2460 Injekce<\/td>\nEP-AFH 140 \u22641\u2032 (axi\u00e1ln\u00ed NG)<\/td>\nEP-AF140 P1<\/a> (vysok\u00fd axi\u00e1ln\u00ed \u2713)<\/td>\n+120 000 \u20a9 (spr\u00e1vn\u00e1 specifikace)<\/td>\n<\/tr>\n
\u2461 Ot\u00e1\u010den\u00ed \u0161roubu<\/td>\nEP-AFH 090 \u22641\u2032 (nad r\u00e1mec specifikace)<\/td>\nEP-BPG P2<\/a> (tepeln\u00e1 z\u00e1t\u011b\u017e \u2713)<\/td>\nU\u0161et\u0159eno \u2212480 000 \u20a9<\/td>\n<\/tr>\n
\u2462 Svorka<\/td>\nEP-AFH 115 \u22641\u2032 (nad r\u00e1mec specifikace)<\/td>\nEP-AB115 P1<\/a> (ekvivalentn\u00ed dynamick\u00fd \u2713)<\/td>\nU\u0161et\u0159eno \u2212360 000 \u20a9<\/td>\n<\/tr>\n
\u2463 Vyhazova\u010d<\/td>\nEP-AFH 060 \u22641\u2032 (nad r\u00e1mec specifikace)<\/td>\nEP-AB060 P2 (kompaktn\u00ed \u2713)<\/td>\nU\u0161et\u0159eno \u2212280 000 \u20a9<\/td>\n<\/tr>\n
\u2464 Oto\u010dn\u00fd st\u016fl<\/td>\nEP-AFH 090 \u22641\u2032 \u2713 (spr\u00e1vn\u011b)<\/td>\nEP-AFH 090<\/a> \u22641\u2032 (stejn\u00e9, spr\u00e1vn\u00e9)<\/td>\n\u017d\u00e1dn\u00e1 zm\u011bna<\/td>\n<\/tr>\n
\u010cist\u00e1 \u00faspora kusovn\u00edku na stroj (optimalizovan\u00e1 oproti v\u00fdchoz\u00edmu nastaven\u00ed all-AFH)<\/td>\n\u22121 000 000 \u20a9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Dopad objemu pro korejsk\u00e9 v\u00fdrobce origin\u00e1ln\u00edho vybaven\u00ed IMM: <\/strong>
\nKorejsk\u00fd v\u00fdrobce vst\u0159ikovac\u00edch stroj\u016f (IMM), kter\u00fd vyr\u00e1b\u00ed 300 stroj\u016f ro\u010dn\u011b s \u00fasporou kusovn\u00edk\u016f 1 000 000 \u20a9 na kusovn\u00edku d\u00edky spr\u00e1vn\u00e9 specifikaci p\u0159evodovky pro jednotliv\u00e9 osy, dosahuje sn\u00ed\u017een\u00ed n\u00e1klad\u016f na komponenty o 300 000 000 \u20a9 ro\u010dn\u011b \u2013 a z\u00e1rove\u0148 zlep\u0161uje spolehlivost vst\u0159ikovac\u00edch os p\u0159echodem z EP-AFH (nen\u00ed dimenzov\u00e1no na axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed protitlakem) na EP-AF (je pro n\u011bj dimenzov\u00e1no). Spr\u00e1vn\u00e1 specifikace sou\u010dasn\u011b sni\u017euje n\u00e1klady a zvy\u0161uje spolehlivost. Toto je technick\u00fd p\u0159\u00edpad, kter\u00fd aplika\u010dn\u00ed in\u017een\u00fd\u0159i spole\u010dnosti Korea Ever-Power p\u0159edkl\u00e1daj\u00ed korejsk\u00fdm t\u00fdm\u016fm pro n\u00e1kup OEM IMM.<\/span><\/div>\n<\/section>\n

<\/p>\n

\n

\u010casto kladen\u00e9 ot\u00e1zky \u2013 Planetov\u00e1 p\u0159evodovka pro vst\u0159ikovac\u00ed lisy<\/h2>\n
\n
\n

Ot\u00e1zka<\/span>
\nLo\u017eisko p\u0159evodovky osy vst\u0159ikov\u00e1n\u00ed na\u0161eho korejsk\u00e9ho IMM selh\u00e1v\u00e1 ka\u017ed\u00fdch 14\u201318 m\u011bs\u00edc\u016f. P\u0159evodovka je spr\u00e1vn\u011b dimenzov\u00e1na na to\u010div\u00fd moment. Co n\u00e1m chyb\u00ed?<\/h3>\n

Pokud je specifikace kroutic\u00edho momentu spr\u00e1vn\u00e1, ale lo\u017eisko p\u0159ed\u010dasn\u011b sel\u017ee, t\u00e9m\u011b\u0159 jistou p\u0159\u00ed\u010dinou je nedostate\u010dn\u00e1 specifikace axi\u00e1ln\u00edho zat\u00ed\u017een\u00ed od protitlaku taveniny. V\u00fdstupn\u00ed h\u0159\u00eddel osy vst\u0159ikov\u00e1n\u00ed p\u0159en\u00e1\u0161\u00ed reak\u010dn\u00ed s\u00edlu protitlaku jako axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed na v\u00fdstupn\u00ed lo\u017eisko b\u011bhem f\u00e1ze plastifikaci \u2013 obvykle 2\u20134 sekundy na cyklus, v ka\u017ed\u00e9m cyklu. Zm\u011b\u0159te pr\u016fm\u011br \u0161roubu a nastaven\u00ed protitlaku, vypo\u010d\u00edtejte F_axi\u00e1ln\u00ed = P_zp\u011bt \u00d7 A_\u0161roub (jak je zn\u00e1zorn\u011bno v modulu 3) a porovnejte je s axi\u00e1ln\u00ed \u00fanosnost\u00ed v\u00fdstupn\u00edho lo\u017eiska v datov\u00e9m listu Korea Ever-Power pro v\u00e1\u0161 instalovan\u00fd model p\u0159evodovky. V korejsk\u00fdch automobilov\u00fdch IMM je tato axi\u00e1ln\u00ed s\u00edla \u010dasto 20 000\u201350 000 N \u2013 co\u017e p\u0159ekra\u010duje axi\u00e1ln\u00ed \u00fanosnost \u0159ady EP-AB, ale je v r\u00e1mci modernizovan\u00e9 specifikace EP-AF. P\u0159echod na EP-AF na stejn\u00e9m r\u00e1mu vy\u0159e\u0161\u00ed poruchu lo\u017eiska bez jak\u00e9koli dal\u0161\u00ed zm\u011bny stroje.<\/p>\n<\/div>\n

\n

Ot\u00e1zka<\/span>
\nZ\u00e1le\u017e\u00ed u osy up\u00edn\u00e1n\u00ed, zda stroj pou\u017e\u00edv\u00e1 kloubov\u00fd mechanismus nebo up\u00ednku s p\u0159\u00edm\u00fdm pohonem?<\/h3>\n

Ano \u2013 v\u00fdznamn\u011b. P\u00e1\u010dkov\u00e1 up\u00ednka vytv\u00e1\u0159\u00ed profil rychlosti a to\u010div\u00e9ho momentu popsan\u00fd v modulu 5: p\u0159evodovka zaznamen\u00e1 \u0161pi\u010dkov\u00fd to\u010div\u00fd moment v bod\u011b zpomalen\u00ed, kdy\u017e se p\u00e1\u010dka zablokuje, n\u00e1sleduje trval\u00e9 udr\u017een\u00ed s n\u00edzk\u00fdm to\u010div\u00fdm momentem. Up\u00ednka s p\u0159\u00edm\u00fdm pohonem (servomotor poh\u00e1n\u00ed kuli\u010dkov\u00fd \u0161roub p\u0159\u00edmo na pohyblivou desku bez kloubov\u00e9ho spojen\u00ed) vytv\u00e1\u0159\u00ed rovnom\u011brn\u011bj\u0161\u00ed profil to\u010div\u00e9ho momentu v cel\u00e9m zdvihu, p\u0159i\u010dem\u017e \u0161pi\u010dkov\u00e9 zat\u00ed\u017een\u00ed je s\u00edla up\u00ednky d\u011blen\u00e1 stoup\u00e1n\u00edm kuli\u010dkov\u00e9ho \u0161roubu \u2013 p\u0159edv\u00eddateln\u011bj\u0161\u00ed a obecn\u011b ni\u017e\u0161\u00ed n\u00e1sobek \u0161pi\u010dky ne\u017e p\u00e1\u010dka. U up\u00ednek s p\u0159\u00edm\u00fdm pohonem obvykle v\u00fdpo\u010det ekvivalentn\u00edho dynamick\u00e9ho to\u010div\u00e9ho momentu d\u00e1v\u00e1 hodnotu bli\u017e\u0161\u00ed trval\u00e9mu to\u010div\u00e9mu momentu a EP-AB P1 u men\u0161\u00edho r\u00e1mu m\u016f\u017ee b\u00fdt adekv\u00e1tn\u00ed ve srovn\u00e1n\u00ed s v\u011bt\u0161\u00edm r\u00e1mem pot\u0159ebn\u00fdm pro ekvivalentn\u00ed dynamick\u00e9 zat\u00ed\u017een\u00ed kloubov\u00e9 up\u00ednky. P\u0159ed v\u00fdb\u011brem velikosti r\u00e1mu p\u0159evodovky si ov\u011b\u0159te typ up\u00ednac\u00edho mechanismu.<\/p>\n<\/div>\n

\n

Ot\u00e1zka<\/span>
\nMohu p\u0159ipojit p\u0159evodovku osy vst\u0159ikov\u00e1n\u00ed ke kuli\u010dkov\u00e9mu \u0161roubu pomoc\u00ed homokinetick\u00e9 h\u0159\u00eddele, abych vyrovnal m\u00edrn\u00e9 nesouosost?<\/h3>\n

Ano \u2013 a to je st\u00e1le \u010dast\u011bj\u0161\u00ed u korejsk\u00fdch pln\u011b elektrick\u00fdch konstrukc\u00ed IMM, kde prostorov\u00e1 omezen\u00ed br\u00e1n\u00ed dokonal\u00e9mu souos\u00e9mu vyrovn\u00e1n\u00ed mezi servop\u0159evodovkou a kuli\u010dkov\u00fdm \u0161roubem. A p\u0159esn\u00fd hnac\u00ed h\u0159\u00eddel CV<\/a> p\u0159en\u00e1\u0161\u00ed to\u010div\u00fd moment prost\u0159ednictv\u00edm \u00fahlov\u00e9ho posunut\u00ed, ani\u017e by p\u0159en\u00e1\u0161el reak\u010dn\u00ed s\u00edlu posunut\u00ed zp\u011bt na v\u00fdstupn\u00ed lo\u017eisko p\u0159evodovky \u2013 co\u017e je d\u016fle\u017eit\u00e1 v\u00fdhoda na ose vst\u0159ikov\u00e1n\u00ed, kde je v\u00fdstupn\u00ed lo\u017eisko ji\u017e zat\u00ed\u017eeno axi\u00e1ln\u00ed reakc\u00ed protitlaku kuli\u010dkov\u00e9ho \u0161roubu. Pokud se m\u00edsto toho pou\u017eije tuh\u00e1 spojka, jak\u00e9koli nesouosost mezi p\u0159evodovkou a kuli\u010dkov\u00fdm \u0161roubem p\u0159id\u00e1 ohybov\u00fd moment na v\u00fdstupn\u00ed h\u0159\u00eddel p\u0159evodovky, kter\u00fd se s\u010d\u00edt\u00e1 nad axi\u00e1ln\u00ed silou protitlaku. Homokinetick\u00fd h\u0159\u00eddel eliminuje tento efekt vrstven\u00ed a zjednodu\u0161uje toleranci souososti b\u011bhem mont\u00e1\u017ee stroje.<\/p>\n<\/div>\n

\n

Ot\u00e1zka<\/span>
\nKorejsk\u00e9 plastov\u00e9 vst\u0159ikovan\u00e9 d\u00edly se \u010dasto vyr\u00e1b\u011bj\u00ed ve vysokoteplotn\u00edm prost\u0159ed\u00ed v bl\u00edzkosti v\u00e1lce stroje. Ovliv\u0148uje okoln\u00ed teplota specifikaci p\u0159evodovky?<\/h3>\n

Ano \u2013 korejsk\u00e9 z\u00e1vody na v\u00fdrobu plast\u016f maj\u00ed zv\u00fd\u0161en\u00e9 okoln\u00ed teploty v bl\u00edzkosti vst\u0159ikovac\u00edch lis\u016f: v\u00e1lec oh\u0159\u00edv\u00e1 okoln\u00ed vzduch na 35\u201350 \u00b0C v bl\u00edzkosti trysky a s\u00e1lav\u00e9 teplo z formy to d\u00e1le zvy\u0161uje. Pou\u017eit\u00edm korekce teploty \u017eivotnosti plastick\u00e9ho maziva z \u010dl\u00e1nku 15 (modul 3): p\u0159i okoln\u00ed teplot\u011b 42 \u00b0C (instalace v bl\u00edzkosti v\u00e1lce) a samooh\u0159evu p\u0159evodovky 35 \u00b0C m\u016f\u017ee teplota sk\u0159\u00edn\u011b dos\u00e1hnout 77 \u00b0C \u2013 co\u017e sni\u017euje \u017eivotnost plastick\u00e9ho maziva z jmenovit\u00e9 hodnoty 20 000 hodin na p\u0159ibli\u017en\u011b 9 000 hodin. V t\u0159\u00edsm\u011bnn\u00e9m korejsk\u00e9m provozu IMM (6 300 h\/rok) to znamen\u00e1 v\u00fdm\u011bnu po 1,4 letech nam\u00edsto 3,2 let. Instalace p\u0159evodovky mimo z\u00f3nu p\u0159\u00edm\u00e9ho oh\u0159evu v\u00e1lce (i o 300 mm d\u00e1le od v\u00e1lce), p\u0159id\u00e1n\u00ed jednoduch\u00e9ho radia\u010dn\u00edho \u0161t\u00edtu nebo veden\u00ed chladic\u00edho vzduchu kolem sk\u0159\u00edn\u011b p\u0159evodovky jsou n\u00edzkon\u00e1kladov\u00e9 z\u00e1sahy, kter\u00e9 udr\u017euj\u00ed teplotu sk\u0159\u00edn\u011b bl\u00edzko jmenovit\u00e9 z\u00e1kladn\u00ed hodnoty a obnovuj\u00ed plnou katalogovou \u017eivotnost. Aplika\u010dn\u00ed in\u017een\u00fd\u0159i spole\u010dnosti Korea Ever-Power zahrnuj\u00ed tento tepeln\u00fd aspekt do odhadu \u017eivotnosti pro v\u0161echny specifikace p\u0159evodovek os IMM.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

\n

Specifikujte kusovn\u00edk va\u0161\u00ed p\u0159evodovky IMM u Korea Ever-Power<\/h2>\n

Spole\u010dnost Korea Ever-Power prov\u00e1d\u00ed v\u00fdpo\u010det kroutic\u00edho momentu po jednotliv\u00fdch os\u00e1ch \u2013 v\u010detn\u011b axi\u00e1ln\u00edho zat\u00ed\u017een\u00ed protitlakem, ekvivalentn\u00edho dynamick\u00e9ho up\u00ednac\u00edho momentu a tepeln\u00e9ho cyklu ot\u00e1\u010den\u00ed \u0161roubu \u2013 a poskytuje optimalizovanou kusovn\u00edk p\u011btios\u00e9 p\u0159evodovky pro korejsk\u00e9 vst\u0159ikovac\u00ed lisy. Ve stejn\u00fd pracovn\u00ed den, v korej\u0161tin\u011b.<\/p>\n

EP-AF Vysok\u00e1 tuhost (osa vst\u0159ikov\u00e1n\u00ed) \u2192
\n<\/a><\/div>\n<\/section>\n

St\u0159iha\u010d: Cxm<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Application Guide \u00b7 Injection \/ Clamp \/ Screw \/ Ejector \u00b7 Five-Axis Selection Planetary Gearbox for Injection Molding Machines \u2014 Five Servo Axes, Five Different Specifications Selecting the right planetary gearbox injection molding axis configuration is the decision that separates reliable all-electric machines from ones that fail bearings every 14 months. A fully electric Korean […]<\/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-705","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\/705","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=705"}],"version-history":[{"count":1,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/posts\/705\/revisions"}],"predecessor-version":[{"id":706,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/posts\/705\/revisions\/706"}],"wp:attachment":[{"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/media?parent=705"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/categories?post=705"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/planetary-gearboxes.com\/cs\/wp-json\/wp\/v2\/tags?post=705"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}