{"id":1418,"date":"2026-06-29T03:43:40","date_gmt":"2026-06-29T03:43:40","guid":{"rendered":"https:\/\/worm-and-worm-wheel.com\/?p=1418"},"modified":"2026-06-29T03:43:40","modified_gmt":"2026-06-29T03:43:40","slug":"worm-and-worm-wheel-for-mining-crusher-and-screening-equipment","status":"publish","type":"post","link":"https:\/\/worm-and-worm-wheel.com\/sk\/worm-and-worm-wheel-for-mining-crusher-and-screening-equipment\/","title":{"rendered":"\u0160nekov\u00e9 a z\u00e1vitovkov\u00e9 koleso pre drvi\u010de a triediace zariadenia na \u0165a\u017ebu"},"content":{"rendered":"
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Korea Ever-Power \u00b7 Sprievodca aplika\u010dn\u00fdm in\u017einierstvom<\/p>\n

\u0160nekov\u00e9 a z\u00e1vitovkov\u00e9 koleso pre drvi\u010de a triediace zariadenia na \u0165a\u017ebu<\/h1>\n

\u010ce\u013eus\u0165ov\u00fd drvi\u010d, ktor\u00fd sa prehryzuje cez \u017eulov\u00e9 balvany s priemerom 400 mm, generuje n\u00e1razov\u00e9 kr\u00fatiace momenty 4 a\u017e 6-n\u00e1sobku priemeru v ust\u00e1lenom stave \u2013 \u0161pi\u010dkov\u00e9 za\u0165a\u017eenia, ktor\u00e9 sa dostan\u00fa a mizn\u00fa do 50 milisek\u00fand. Z\u00e1vitovkov\u00fd prevodov\u00fd p\u00e1r poh\u00e1\u0148aj\u00faci pod\u00e1va\u010d drvi\u010da sa nach\u00e1dza 2 metre od zariadenia a tieto pren\u00e1\u0161an\u00e9 r\u00e1zy nepretr\u017eite absorbuje po\u010das 6 000 hod\u00edn ro\u010dne v povrchovom lome 200 kilometrov od najbli\u017e\u0161ej mechanickej dielne. Odolnos\u0165 vo\u010di n\u00e1razom, odolnos\u0165 vo\u010di prostrediu a prev\u00e1dzkyschopnos\u0165 v ter\u00e9ne nie s\u00fa volite\u013en\u00e9 \u2013 s\u00fa to po\u017eiadavky na pre\u017eitie.<\/p>\n

Porozpr\u00e1vajte sa s technikom bansk\u00e9ho pohonu \u2192<\/a><\/p>\n<\/div>\n

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R\u00fdchla odpove\u010f<\/div>\n

Drvi\u010de, vibra\u010dn\u00e9 triedi\u010de, grizzly pod\u00e1va\u010de a bubnov\u00e9 pohony pou\u017e\u00edvaj\u00fa z\u00e1vitovkov\u00e9 prevody v pomocn\u00fdch a ved\u013eaj\u0161\u00edch pohonn\u00fdch \u00faloh\u00e1ch, kde sa stret\u00e1va extr\u00e9mne r\u00e1zov\u00e9 za\u0165a\u017eenie, abraz\u00edvny prach a prev\u00e1dzkyschopnos\u0165 na dia\u013eku. Tabu\u013eka klasifik\u00e1cie r\u00e1zov\u00e9ho za\u0165a\u017eenia mapuje tvrdos\u0165 rudy (m\u00e4kk\u00e1, stredn\u00e1, tvrd\u00e1, ve\u013emi tvrd\u00e1) v z\u00e1vislosti od typu drvi\u010da (\u010de\u013eus\u0165ov\u00fd, ku\u017ee\u013eov\u00fd, r\u00e1zov\u00fd, kr\u00fa\u017ekov\u00fd) s cie\u013eom ur\u010di\u0165 spr\u00e1vny prev\u00e1dzkov\u00fd faktor r\u00e1zov\u00e9ho za\u0165a\u017eenia \u2013 od 2,0 pre ku\u017ee\u013eov\u00e9 drvi\u010de m\u00e4kkej rudy do 4,0 pre r\u00e1zov\u00e9 drvi\u010de tvrdej rudy. Tieto faktory s\u00fa 2 a\u017e 3-kr\u00e1t vy\u0161\u0161ie ako faktory pren\u00e1\u0161an\u00fdch r\u00e1zov pou\u017e\u00edvan\u00e9 v cement\u00e1r\u0148ach (\u010dl\u00e1nok A25), preto\u017ee r\u00e1zov\u00e9 za\u0165a\u017eenia pri bani s\u00fa priame mechanick\u00e9 r\u00e1zy z kontaktu rudy s kovom, a nie pren\u00e1\u0161an\u00e9 vibr\u00e1cie cez z\u00e1klady. Vzdialen\u00e9 bansk\u00e9 lokality vy\u017eaduj\u00fa pred\u013a\u017een\u00e9 servisn\u00e9 intervaly (6 a\u017e 12 mesiacov medzi pl\u00e1novanou \u00fadr\u017ebou), kon\u0161trukcie krytov opravite\u013en\u00fdch v ter\u00e9ne (delen\u00e1 skri\u0148a, pr\u00edstup k koles\u00e1m so skrutkami) a programy anal\u00fdzy oleja, ktor\u00e9 zis\u0165uj\u00fa probl\u00e9my medzi fyzick\u00fdmi kontrolami.<\/p>\n<\/div>\n

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Tam, kde sa v \u0165a\u017eobn\u00fdch prev\u00e1dzkach pou\u017e\u00edvaj\u00fa z\u00e1vitovkov\u00e9 prevody<\/h2>\n
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Hlavn\u00e9 pohony drvi\u010da a triedi\u010da pou\u017e\u00edvaj\u00fa priamo spriahnut\u00e9 motory, reme\u0148ov\u00e9 pohony alebo \u0161pir\u00e1lov\u00e9 prevodovky pre vysokor\u00fdchlostn\u00fa a vysokov\u00fdkonn\u00fa prim\u00e1rnu redukciu. Ka\u017ed\u00fd drviaci a triediaci okruh m\u00e1 v\u0161ak 8 a\u017e 20 pomocn\u00fdch pohonov, kde s\u00fa \u0161tandardom p\u00e1ry z\u00e1vitovkov\u00fdch prevodov: pohony z\u00e1sterov\u00e9ho pod\u00e1va\u010da, ktor\u00e9 d\u00e1vkuj\u00fa rudu do drvi\u010da, pohony vibr\u00e1tora grizzly pod\u00e1va\u010da, pohony ot\u00e1\u010dania bubnov\u00e9ho triedi\u010da, pohony hlavice dopravn\u00edka, pohony rozpra\u0161ovac\u00edch \u010derpadiel na potla\u010denie prachu a mechanizmy na \u010distenie dutiny drvi\u010da.<\/p>\n

Tieto pomocn\u00e9 z\u00e1vitovkov\u00e9 prevodov\u00e9 pohony maj\u00fa tri spolo\u010dn\u00e9 charakteristiky: mierny kr\u00fatiaci moment (200 a\u017e 5 000 N\u00b7m), n\u00edzku a\u017e stredn\u00fa r\u00fdchlos\u0165 (1 a\u017e 30 ot.\/min.) a extr\u00e9mne vystavenie prostrediu \u2013 prach na otvorenom priestranstve, striekaj\u00faca voda, teplotn\u00e9 extr\u00e9my a nepretr\u017eit\u00e9 mechanick\u00e9 otrasy zo susedn\u00e9ho drviaceho zariadenia.<\/p>\n<\/div>\n

\"z\u00e1vitovkov\u00fd<\/div>\n<\/div>\n

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Klasifik\u00e1cia r\u00e1zov\u00e9ho za\u0165a\u017eenia \u2013 tvrdos\u0165 rudy \u00d7 typ drvi\u010da \u2192 prev\u00e1dzkov\u00fd faktor<\/h2>\n

R\u00e1zov\u00e9 za\u0165a\u017eenia v baniach sa l\u00ed\u0161ia od pren\u00e1\u0161an\u00fdch vibr\u00e1ci\u00ed v cement\u00e1r\u0148ach (\u010dl\u00e1nok A25, SF 2.0 a\u017e 3.0), preto\u017ee bansk\u00e9 otrasy vznikaj\u00fa priamym kontaktom rudy s kovom v drvi\u010di \u2013 vytv\u00e1raj\u00fa ostr\u00e9 prechodov\u00e9 javy s vysokou amplit\u00fadou, a nie nepretr\u017eit\u00e9 vibr\u00e1cie s n\u00edzkou amplit\u00fadou. Z\u00e1va\u017enos\u0165 n\u00e1razu z\u00e1vis\u00ed od dvoch premenn\u00fdch: tvrdosti rudy (\u010do ur\u010duje maxim\u00e1lnu silu na n\u00e1raz) a typu drvi\u010da, ktor\u00fd ju spracov\u00e1va (\u010do ur\u010duje frekvenciu n\u00e1razov a priebeh vlny).<\/p>\n

\n\n\n\n\n\n\n\n\n
Tvrdos\u0165 rudy<\/th>\n\u010ce\u013eus\u0165ov\u00fd drvi\u010d<\/th>\nKu\u017ee\u013eov\u00fd drvi\u010d<\/th>\nR\u00e1zov\u00fd drvi\u010d<\/th>\nVibra\u010dn\u00e9 sito<\/th>\nPr\u00edklad rudy<\/th>\n<\/tr>\n<\/thead>\n
M\u00e4kk\u00fd (Mohs 2-3)<\/td>\nSF 2.0<\/td>\nSF 2.0<\/td>\nSF 2,5<\/td>\nSF 1,5<\/td>\nUhlie, sadra, mastenec, so\u013e<\/td>\n<\/tr>\n
Stredn\u00e1 (Mohs 4-5)<\/td>\nSF 2,5<\/td>\nSF 2,5<\/td>\nSF 3.0<\/td>\nSF 2.0<\/td>\nV\u00e1penec, mramor, bauxit<\/td>\n<\/tr>\n
Tvrd\u00fd (Mohs 6-7)<\/td>\nSF 3.0<\/td>\nSF 3.0<\/td>\nSF 3.5<\/td>\nSF 2,5<\/td>\n\u017dula, \u010dadi\u010d, \u017eelezn\u00e1 ruda, meden\u00e1 ruda<\/td>\n<\/tr>\n
Ve\u013emi \u0165a\u017ek\u00e9 (Mohs 7+)<\/td>\nSF 3.5<\/td>\nSF 3.5<\/td>\nSF 4.0<\/td>\nSF 3.0<\/td>\nKremenec, takonit, korund<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Z tabu\u013eky vypl\u00fdva, \u017ee drvi\u010de n\u00e1razov vy\u017eaduj\u00fa najvy\u0161\u0161\u00ed prev\u00e1dzkov\u00fd faktor pri ka\u017edej \u00farovni tvrdosti rudy \u2013 preto\u017ee pou\u017e\u00edvaj\u00fa vysokor\u00fdchlostn\u00fd n\u00e1raz rotora (r\u00fdchlos\u0165 hrotu 60 a\u017e 80 m\/s) namiesto kompresie, \u010do sp\u00f4sobuje najostrej\u0161ie r\u00e1zov\u00e9 prechody. Vibra\u010dn\u00e9 triedi\u010de maj\u00fa najni\u017e\u0161ie faktory, preto\u017ee pohyb triedi\u010da je riaden\u00fd excentrick\u00fdmi z\u00e1va\u017eiami \u2013 energia n\u00e1razu sa rozpty\u013euje v rudnom l\u00f4\u017eku, a nie sa pren\u00e1\u0161a na pohon. Z\u00e1vitovkov\u00fd prevodov\u00fd p\u00e1r s menovit\u00fdm kr\u00fatiacim momentom 2 000 N\u00b7m pre ku\u017ee\u013eov\u00fd drvi\u010d m\u00e4kkej rudy (SF 2.0, efekt\u00edvny kr\u00fatiaci moment 1 000 N\u00b7m) by musel ma\u0165 menovit\u00fd kr\u00fatiaci moment 8 000 N\u00b7m pre n\u00e1razov\u00fd drvi\u010d ve\u013emi tvrdej rudy (SF 4.0, rovnak\u00fd ust\u00e1len\u00fd stav 2 000 N\u00b7m) \u2013 \u010do je 4-n\u00e1sobn\u00fd rozdiel vo ve\u013ekosti r\u00e1mu pri rovnakej po\u017eiadavke na nomin\u00e1lny kr\u00fatiaci moment.<\/p>\n


\n\"Materi\u00e1ly<\/p>\n

Mo\u017enos\u0165 servisu na dia\u013eku \u2013 pred\u013a\u017een\u00e9 intervaly a kon\u0161trukcia s mo\u017enos\u0165ou opravy v ter\u00e9ne<\/h2>\n

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

Bane v K\u00f3rei, Vietname, Austr\u00e1lii a Afrike s\u00fa \u010dasto vzdialen\u00e9 100 a\u017e 500 kilometrov od najbli\u017e\u0161ej mechanickej dielne s mo\u017enos\u0165ou opravy z\u00e1vitovkov\u00fdch prevodov. Preprava chybnej pohonnej jednotky do dielne a sp\u00e4\u0165 trv\u00e1 1 a\u017e 3 t\u00fd\u017edne \u2013 po\u010das ktor\u00fdch sa z\u00e1vitovkov\u00fd pohon a drviaci okruh bu\u010f vypn\u00fa, alebo be\u017eia na obtoku so zn\u00ed\u017eenou kapacitou. N\u00e1klady na jeden t\u00fd\u017ede\u0148 prestoja drvi\u010da (strata pr\u00edjmov z v\u00fdroby) zvy\u010dajne prevy\u0161uj\u00fa n\u00e1klady na cel\u00fd pomocn\u00fd pohonn\u00fd syst\u00e9m 10 a\u017e 50-n\u00e1sobne.<\/p>\n

Kon\u0161truk\u010dn\u00e9 prvky pre \u00fadr\u017ebu v ter\u00e9ne.<\/strong> Z\u00e1vitovkov\u00e9 prevody banskej triedy zah\u0155\u0148aj\u00fa delen\u00fa skri\u0148u (skri\u0148a sa rozdel\u00ed na dve polovice pre kontrolu a v\u00fdmenu kolesa bez nutnosti demont\u00e1\u017ee jednotky zo stroja), skrutkov\u00e9 upevnenie kolesa (koleso sa d\u00e1 odskrutkova\u0165 z v\u00fdstupn\u00e9ho hriade\u013ea a vymeni\u0165 v ter\u00e9ne pomocou z\u00e1kladn\u00e9ho ru\u010dn\u00e9ho n\u00e1radia), extern\u00e9 otvory na vyp\u00fa\u0161\u0165anie a plnenie oleja (pr\u00edstupn\u00e9 bez demont\u00e1\u017ee) a nadrozmern\u00e9 magnetick\u00e9 vyp\u00fa\u0161\u0165acie z\u00e1tky (na zachytenie kovov\u00fdch \u010dast\u00edc opotrebovania medzi anal\u00fdzami oleja). Tieto vlastnosti zvy\u0161uj\u00fa v\u00fdrobn\u00e9 n\u00e1klady skrine o 15 a\u017e 25 percent, ale u\u0161etria 10 a\u017e 50-n\u00e1sobok tejto sumy z d\u00f4vodu zabr\u00e1nenia prestojom, ke\u010f je potrebn\u00e1 oprava v ter\u00e9ne.<\/p>\n

Anal\u00fdza oleja ako dia\u013ekov\u00e9 monitorovanie.<\/strong> \u0160tvr\u0165ro\u010dn\u00fd odber vzoriek oleja a laborat\u00f3rna anal\u00fdza (obsah \u017eeleza, medi a c\u00ednu pomocou ICP spektrometrie) umo\u017e\u0148uje v\u010dasn\u00e9 odhalenie zr\u00fdchlen\u00e9ho opotrebenia, \u010do umo\u017e\u0148uje bani napl\u00e1nova\u0165 v\u00fdmenu kolesa po\u010das pl\u00e1novan\u00e9ho obdobia \u00fadr\u017eby, a nie reagova\u0165 na nepl\u00e1novan\u00fa poruchu. N\u00e1klady na \u0161tvr\u0165ro\u010dn\u00fa anal\u00fdzu oleja s\u00fa pribli\u017ene 80 a\u017e 120 USD ro\u010dne na pohon \u2013 \u010do je zanedbate\u013en\u00e9 v porovnan\u00ed s dennou produk\u010dnou hodnotou drviaceho okruhu 50 000 a\u017e 200 000 USD.<\/p>\n

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Pozn\u00e1mka k in\u017einierskemu stolu<\/div>\n

K\u00f3rejsk\u00fd kamenivov\u00fd lom, ktor\u00fd prev\u00e1dzkoval okruh \u010de\u013eus\u0165ov\u00e9ho drvi\u010da s v\u00fdkonom 500 ton za hodinu, \u0161pecifikoval p\u00e1ry z\u00e1vitovkov\u00fdch prevodov pre 4 pohony \u010deln\u00e9ho pod\u00e1va\u010da. Ruda bola stredne tvrd\u00fd v\u00e1penec (Mohs 4). Po\u010diato\u010dn\u00e1 \u0161pecifik\u00e1cia pou\u017e\u00edvala SF 1,5 \u2013 \u0161tandard pre \u201emierne r\u00e1zy\u201c v katal\u00f3gu. P\u00e1ry z\u00e1vitovkov\u00fdch prevodov boli dimenzovan\u00e9 na 3 000 N\u00b7m (2 000 N\u00b7m v ust\u00e1lenom stave \u00d7 1,5). Po 14 mesiacoch prev\u00e1dzky jeden zo \u0161tyroch p\u00e1rov zlyhal \u2013 bronzov\u00fd zub kolesa sa zlomil v koreni v d\u00f4sledku \u00fanavy n\u00e1razom. Lom musel na 3 dni zastavi\u0165 pod\u00e1va\u010d, k\u00fdm nebol zo Soulu (180 km) dodan\u00fd n\u00e1hradn\u00fd diel. Strata produkcie v d\u00f4sledku poruchy z\u00e1vitovkov\u00e9ho prevodu: pribli\u017ene 36 000 ton \u00d7 mar\u017ea 8 USD na tonu = 288 000 USD straten\u00fdch pr\u00edjmov po\u010das 3-d\u0148ovej odst\u00e1vky. Hlavn\u00e1 pr\u00ed\u010dina: SF 1.5 bol vhodn\u00fd pre v\u0161eobecn\u00e9 priemyseln\u00e9 vibr\u00e1cie, ale nebol dostato\u010dn\u00fd pre prostredie s n\u00e1razmi \u010de\u013eus\u0165ov\u00e9ho drvi\u010da \u2013 spr\u00e1vny faktor z tabu\u013eky klasifik\u00e1cie n\u00e1razov bol SF 2.5 pre stredne tvrd\u00fa rudu s \u010de\u013eus\u0165ov\u00fdm drvi\u010dom. Pre\u0161pecifik\u00e1cia na SF 2.5: p\u00e1ry s menovit\u00fdm kr\u00fatiacim momentom 5 000 N\u00b7m (2 000 \u00d7 2,5). Ve\u013ekos\u0165 r\u00e1mu sa zv\u00e4\u010d\u0161ila zo 125 mm na 160 mm medzi stredmi. N\u00e1klady na n\u00e1hradn\u00fd p\u00e1r: 1 650 USD (oproti 980 USD za poddimenzovan\u00fd p\u00e1r \u2013 n\u00e1rast o 670 USD). Trojro\u010dn\u00e9 sledovanie pre\u0161pecifikovan\u00fdch p\u00e1rov: \u017eiadne poruchy, \u017eiadne nepl\u00e1novan\u00e9 prestoje. N\u00e1klady na moderniz\u00e1ciu vo v\u00fd\u0161ke 670 USD za p\u00e1r zabr\u00e1nili denn\u00fdm strat\u00e1m produkcie vo v\u00fd\u0161ke 288 000 USD \u2013 pomer n\u00e1vratnosti 430:1.<\/p>\n<\/div>\n

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\u0160pecifik\u00e1cie troch p\u00e1rov z\u00e1vitovkov\u00fdch prevodov pre bansk\u00e9 zariadenia<\/h2>\n

\"Vysokov\u00fdkonn\u00fd<\/p>\n

Pr\u00edpad 1 \u2013 K\u00f3rejsk\u00fd lom na kamenivo: \u010de\u013eus\u0165ov\u00fd drvi\u010d s pod\u00e1va\u010dom, v\u00e1penec, SF 2,5<\/h3>\n

K\u00f3rejsk\u00fd lom na \u0165a\u017ebu kameniva \u0161pecifikoval p\u00e1ry z\u00e1vitovkov\u00fdch prevodov pre 4 z\u00e1vitovkov\u00e9 pohony pod\u00e1va\u010da s plochou dr\u00e1hou vzduchu, ktor\u00e9 nap\u00e1jaj\u00fa \u010de\u013eus\u0165ov\u00fd drvi\u010d s rozmermi 900 \u00d7 600 mm pri v\u00fdkone 500 ton za hodinu. Ruda: v\u00e1penec, Mohs 4 (stredn\u00e1). R\u00fdchlos\u0165 pod\u00e1va\u010da: 5 ot.\/min. Ust\u00e1len\u00fd kr\u00fatiaci moment: 2 000 N\u00b7m. N\u00e1razov\u00e1 hustota z klasifika\u010dnej tabu\u013eky: 2,5 (stredn\u00e1 ruda \u00d7 \u010de\u013eus\u0165ov\u00fd drvi\u010d). Po\u017eadovan\u00fd v\u00fdkon: 5 000 N\u00b7m. P\u00e1r z\u00e1vitovkov\u00fdch prevodov (pre\u0161pecifikovan\u00fd po po\u010diato\u010dnom poddimenzovan\u00ed): jednochod\u00fd, modul 6, rozostup 160 mm, pomer 40:1. Materi\u00e1l: z\u00e1vitovka z kalenej legovanej ocele, koleso z odstredivo liateho fosforov\u00e9ho bronzu. Teleso: delen\u00e1 liatina s magnetickou vyp\u00fa\u0161\u0165acou z\u00e1tkou. Tesnenie: labyrintov\u00e9 s n\u00e1pl\u0148ovou z\u00f3nou s tukom (v mieste pod\u00e1va\u010da nie je k dispoz\u00edcii preplachovanie vzduchom \u2013 nie je k dispoz\u00edcii pr\u00edvod stla\u010den\u00e9ho vzduchu). Olej: miner\u00e1lny EP ISO VG 460, meniaci sa ka\u017ed\u00fdch 6 mesiacov so \u0161tvr\u0165ro\u010dnou anal\u00fdzou oleja (ICP spektrometria pre me\u010f, \u017eelezo, c\u00edn). Cena za p\u00e1r: 1 650 USD. \u0160tvr\u0165ro\u010dn\u00e1 anal\u00fdza oleja: 30 USD na vzorku. Trojro\u010dn\u00e1 slu\u017eba: \u017eiadne poruchy, trend medi stabiln\u00fd na \u00farovni 12 ppm (v\u00fdrazne pod ak\u010dn\u00fdm limitom 80 ppm).<\/p>\n

Pr\u00edpad 2 \u2013 Japonsk\u00e1 podzemn\u00e1 meden\u00e1 ba\u0148a: pohon bubnov\u00e9ho sita, mokr\u00e1 ruda, IP67<\/h3>\n

Japonsk\u00e1 podzemn\u00e1 ba\u0148a na \u0165a\u017ebu medi \u0161pecifikovala dvojicu z\u00e1vitovkov\u00fdch prevodov pre pohon ot\u00e1\u010dania bubnov\u00e9ho sita v prim\u00e1rnom triediacom okruhu. Bubnov\u00fd triedi\u010d odde\u013eoval drven\u00fa rudu (m\u00ednus 150 mm) od jemn\u00fdch \u010dast\u00edc pri 8 ot.\/min. Prostredie podzemnej bane: 95-percentn\u00e1 relat\u00edvna vlhkos\u0165, odkvapk\u00e1vanie podzemnej vody, celoro\u010dn\u00e1 teplota 28 a\u017e 35 stup\u0148ov Celzia. Vlhk\u00e9 prostredie bolo agres\u00edvnej\u0161ie ako pra\u0161n\u00e9 prostredie v povrchov\u00fdch bansk\u00fdch prev\u00e1dzkach \u2013 voda niesla rozpusten\u00fd s\u00edran me\u010fnat\u00fd (kysl\u00fd, pH 3 a\u017e 4), ktor\u00fd r\u00fdchlo korodoval \u0161tandardn\u00fa oce\u013e. Dvojica z\u00e1vitovkov\u00fdch prevodov: jednochod\u00e1, modul 5, rozostup 125 mm, prevodov\u00fd pomer 30:1. Ust\u00e1len\u00fd kr\u00fatiaci moment: 1 800 N\u00b7m. N\u00e1razov\u00e1 odolnos\u0165: 2,0 (stredn\u00e1 ruda, ekvivalent vibra\u010dn\u00e9ho sita). Po\u017eadovan\u00fd v\u00fdkon: 3 600 N\u00b7m. Materi\u00e1l: Z\u00e1vitovka z nehrdzavej\u00facej ocele 316L (odolnos\u0165 vo\u010di kyslej banskej vode), koleso z hlin\u00edkov\u00e9ho bronzu. Tesnenie: IP67 s PTFE okrajom a labyrintom. Olej: syntetick\u00fd PAG s antikor\u00f3znou pr\u00edsadou pre kysl\u00e9 prostredie. Cena za p\u00e1r: 2 400 USD. Prehliada\u0165 reduk\u010dn\u00fd z\u00e1vitovkov\u00fd prevod pre \u0165a\u017ebu<\/a> mo\u017enosti pre podzemn\u00e9 a povrchov\u00e9 \u0165a\u017eobn\u00e9 aplik\u00e1cie.<\/p>\n

Pr\u00edpad 3 \u2013 \u0165a\u017eba vietnamsk\u00e9ho lateritov\u00e9ho niklu: vibra\u010dn\u00e9 triedenie, m\u00e4kk\u00e1 ruda, n\u00e1kladovo optimalizovan\u00e9<\/h3>\n

Vietnamsk\u00e1 ba\u0148a na \u0165a\u017ebu lateritu a niklu \u0161pecifikovala p\u00e1ry z\u00e1vitovkov\u00fdch prevodov pre 6 pohonov vibra\u010dn\u00fdch s\u00edt v okruhu prem\u00fdvania rudy. Lateritov\u00e1 ruda je m\u00e4kk\u00e1 (Mohs 2 a\u017e 3, v podstate \u00edl a rozlo\u017een\u00e1 hornina) a spracov\u00e1va sa za mokra \u2013 ruda sa pred trieden\u00edm suspenduje vo vode. R\u00e1zov\u00e9 za\u0165a\u017eenie bolo minim\u00e1lne, preto\u017ee laterit nevyvol\u00e1va \u017eiadne ostr\u00e9 n\u00e1razy horniny na kov. R\u00e1zov\u00fd index vibra\u010dn\u00e9ho sita SF: 1,5 (m\u00e4kk\u00e1 ruda, vibra\u010dn\u00e9 sito \u2013 najni\u017e\u0161\u00ed faktor v klasifika\u010dnej tabu\u013eke). Ust\u00e1len\u00fd kr\u00fatiaci moment: 800 N\u00b7m. Po\u017eadovan\u00fd v\u00fdkon: 1 200 N\u00b7m. P\u00e1r z\u00e1vitovkov\u00fdch prevodov: jednochod\u00fd, modul 4, rozostup 100 mm, prevodov\u00fd pomer 25:1. Materi\u00e1l: \u017eiarovo pozinkovan\u00fd z\u00e1vitovkov\u00fd prevod (vhodn\u00fd pre mokr\u00fa, ale nekysl\u00fa suspenziu lateritov\u00e9ho \u00edlu), koleso z fosforov\u00e9ho bronzu. Tesnenie: IP55 s ochranou proti striekaj\u00facej vode (pohon sita bol nad \u00farov\u0148ou suspenzie, prij\u00edmal striekaj\u00facu vodu, ale nie ponor). Olej: \u0161tandardn\u00fd miner\u00e1lny EP ISO VG 320, ka\u017edoro\u010dne sa men\u00ed. Cena za p\u00e1r: 380 USD. Cena za 6 jednotiek: 2 280 USD. \u0160pecifik\u00e1cia ukazuje, \u017ee nie v\u0161etky bansk\u00e9 aplik\u00e1cie vy\u017eaduj\u00fa extr\u00e9mne prev\u00e1dzkov\u00e9 faktory a materi\u00e1ly odoln\u00e9 vo\u010di kor\u00f3zii, ak\u00e9 s\u00fa typick\u00e9 pre oper\u00e1cie s tvrd\u00fdmi horninami \u2013 spracovanie lateritu je mechanicky \u0161etrn\u00e9 a chemicky mierne v porovnan\u00ed s drven\u00edm tvrd\u00fdch horn\u00edn a \u0161pecifik\u00e1cia z\u00e1vitovkov\u00e9ho prevodov\u00e9ho p\u00e1ru by mala zodpoveda\u0165 skuto\u010dnej z\u00e1va\u017enosti, a nie sa riadi\u0165 najhor\u0161\u00edm predpokladom \u0165a\u017eby.<\/p>\n

<\/p>\n

\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
\n
\nOt\u00e1zka: Ako ur\u010d\u00edm spr\u00e1vny faktor vplyvu pre moju konkr\u00e9tnu ba\u0148u?<\/summary>\n

Za\u010dnite s tabu\u013ekou klasifik\u00e1cie n\u00e1razov pomocou tvrdosti rudy (z \u00fadajov geologick\u00e9ho prieskumu alebo Mohsovho testu vrypu) a typu drvi\u010da. Potom upravte pod\u013ea mont\u00e1\u017enej vzdialenosti: ak je z\u00e1vitovkov\u00fd prevodov\u00fd p\u00e1r namontovan\u00fd priamo na r\u00e1me drvi\u010da (pohon pod\u00e1va\u010da je priskrutkovan\u00fd k drvi\u010du), pou\u017eite faktor stola. Ak je drvi\u010d namontovan\u00fd na samostatnom z\u00e1klade 2 a\u017e 5 metrov od drvi\u010da, zn\u00ed\u017ete ho o 0,5 (pren\u00e1\u0161an\u00fd n\u00e1raz sa tlm\u00ed so vzdialenos\u0165ou). Ak je drvi\u010d namontovan\u00fd na spolo\u010dnom z\u00e1klade s gu\u013eov\u00fdm mlynom (ako v cement\u00e1r\u0148ach, \u010dl\u00e1nok A25), pou\u017eite namiesto toho faktor bl\u00edzkosti gu\u013eov\u00e9ho mlyna. V pr\u00edpade pochybnost\u00ed pou\u017eite vy\u0161\u0161\u00ed faktor \u2013 n\u00e1klady na jedno zv\u00e4\u010d\u0161enie ve\u013ekosti r\u00e1mu (15 a\u017e 25 percent) s\u00fa zanedbate\u013en\u00e9 v porovnan\u00ed s n\u00e1kladmi na jedno nepl\u00e1novan\u00e9 zlyhanie vo vzdialenej bani.<\/p>\n<\/details>\n

\nOt\u00e1zka: \u010co rob\u00ed teleso z\u00e1vitovkov\u00e9ho prevodov\u00e9ho p\u00e1ru \u201eopravite\u013en\u00fdm v ter\u00e9ne\u201c?<\/summary>\n

\u0160tyri kon\u0161truk\u010dn\u00e9 prvky: (1) Delen\u00e1 skri\u0148a \u2013 horn\u00e1 polovica sa odskrutkuje, aby sa odkrylo koleso bez nutnosti demont\u00e1\u017ee celej jednotky z r\u00e1mu stroja; (2) Skrutkovan\u00e9 koleso \u2013 koleso je priskrutkovan\u00e9 k pr\u00edrube v\u00fdstupn\u00e9ho hriade\u013ea, a nie je nalisovan\u00e9, \u010do umo\u017e\u0148uje demont\u00e1\u017e pomocou \u0161tandardn\u00fdch k\u013e\u00fa\u010dov; (3) Pr\u00edstupn\u00e9 olejov\u00e9 otvory \u2013 vyp\u00fa\u0161\u0165acie a plniace otvory s\u00fa pr\u00edstupn\u00e9 bez demont\u00e1\u017ee ochrann\u00fdch krytov alebo susedn\u00e9ho zariadenia; (4) \u0160tandardn\u00e9 upev\u0148ovacie prvky \u2013 v\u0161etky skrutky skrine s\u00fa metrick\u00e9 \u0161es\u0165hrann\u00e9 (bez \u0161peci\u00e1lneho n\u00e1radia). V\u010faka t\u00fdmto vlastnostiam m\u00f4\u017ee vy\u0161kolen\u00fd bansk\u00fd mechanik vymeni\u0165 opotrebovan\u00e9 z\u00e1vitovkov\u00e9 koleso za 4 a\u017e 6 hod\u00edn pomocou ru\u010dn\u00e9ho n\u00e1radia dostupn\u00e9ho v ka\u017edej banskej dielni \u2013 v porovnan\u00ed s 1 a\u017e 3 t\u00fd\u017ed\u0148ami potrebn\u00fdmi na prepravu jednotky do extern\u00e9ho zariadenia.<\/p>\n<\/details>\n

\nOt\u00e1zka: Ak\u00fd je rozdiel medzi bansk\u00fdm prachom a cementov\u00fdm prachom v jeho vplyve na p\u00e1ry z\u00e1vitovkov\u00fdch prevodov?<\/summary>\n

Bansk\u00fd prach sa l\u00ed\u0161i pod\u013ea typu rudy: horninov\u00fd prach bohat\u00fd na oxid kremi\u010dit\u00fd (\u017eula, kremenec) je extr\u00e9mne abraz\u00edvny, ale chemicky neutr\u00e1lny (pH 6 a\u017e 7). Prach z cement\u00e1rne (\u010dl\u00e1nok A25) je mierne abraz\u00edvny, ale silne z\u00e1sadit\u00fd (pH 12). Mechanick\u00fd abraz\u00edvny \u00fa\u010dinok je podobn\u00fd \u2013 oba typy p\u00f4sobia ako lapovacia zmes, ak vnikn\u00fa do krytu. Chemick\u00fd \u00fa\u010dinok sa l\u00ed\u0161i: cementov\u00fd prach nap\u00e1da gumov\u00e9 tesnenia prostredn\u00edctvom alkalickej degrad\u00e1cie, zatia\u013e \u010do oxid kremi\u010dit\u00fd nie. Niektor\u00fd bansk\u00fd prach (rudy sulfidu medi, sulfidu \u017eeleza) v\u0161ak vytv\u00e1ra kysl\u00fa odtokov\u00fa vodu, ktor\u00e1 nap\u00e1da oce\u013e a bronz \u2013 vy\u017eaduje si rovnak\u00e9 vylep\u0161enia materi\u00e1lov (nehrdzavej\u00faca oce\u013e 316L, hlin\u00edkov\u00fd bronz) ako z\u00e1sadit\u00e9 prostredie cementu, ale z opa\u010dn\u00fdch chemick\u00fdch d\u00f4vodov.<\/p>\n<\/details>\n

\nOt\u00e1zka: Mali by by\u0165 v bani skladovan\u00e9 n\u00e1hradn\u00e9 p\u00e1ry z\u00e1vitovkov\u00fdch prevodov?<\/summary>\n

Pre bane vzdialen\u00e9 viac ako 100 km od dod\u00e1vate\u013ea: \u00e1no \u2013 majte na sklade aspo\u0148 jedno n\u00e1hradn\u00e9 koleso na ka\u017ed\u00fa kritick\u00fa ve\u013ekos\u0165 pohonu a jeden kompletn\u00fd n\u00e1hradn\u00fd p\u00e1r pre pohon s najvy\u0161\u0161ou kritickos\u0165ou (zvy\u010dajne prim\u00e1rny pod\u00e1va\u010d drvi\u010da). N\u00e1klady na prepravu jedn\u00e9ho n\u00e1hradn\u00e9ho p\u00e1ru z\u00e1vitovkov\u00fdch ozuben\u00fdch kolies (hodnota z\u00e1sob 1 000 a\u017e 3 000 USD) s\u00fa menej ako 1 percento straty pr\u00edjmov z v\u00fdroby po\u010das jedn\u00e9ho d\u0148a prestoja drvi\u010da (50 000 a\u017e 200 000 USD). Pri kon\u0161trukci\u00e1ch s delen\u00fdm krytom, ktor\u00e9 je mo\u017en\u00e9 opravi\u0165 v ter\u00e9ne, je posta\u010duj\u00face ma\u0165 na sklade iba bronzov\u00e9 koleso (a nie cel\u00fd p\u00e1r), preto\u017ee oce\u013eov\u00fd z\u00e1vitovkov\u00fd koleso zriedkavo zlyh\u00e1va \u2013 \u010d\u00edm sa zn\u00ed\u017eia n\u00e1klady na n\u00e1hradn\u00e9 koles\u00e1 o 60 a\u017e 70 percent.<\/p>\n<\/details>\n

\nOt\u00e1zka: Ak\u00e1 je typick\u00e1 \u017eivotnos\u0165 z\u00e1vitovkov\u00e9ho prevodov\u00e9ho p\u00e1ru v bansk\u00fdch zariadeniach?<\/summary>\n

Pri spr\u00e1vnom prev\u00e1dzkovom faktore n\u00e1razu a ochrane proti prachu: 4 a\u017e 8 rokov pri 4 000 a\u017e 6 000 hodin\u00e1ch ro\u010dne pre okruhy drvenia tvrdej rudy, 6 a\u017e 12 rokov pre aplik\u00e1cie spracovania m\u00e4kkej rudy a triedenia. Oce\u013eov\u00fd z\u00e1vitovkov\u00fd dopravn\u00edk vydr\u017e\u00ed 8 a\u017e 15+ rokov. Obmedzuj\u00facim faktorom \u017eivotnosti je takmer v\u017edy bronzov\u00e9 koleso \u2013 \u00fanava materi\u00e1lu n\u00e1razom v oblasti kore\u0148a zuba vytv\u00e1ra mikrotrhliny, ktor\u00e9 rast\u00fa po\u010das mili\u00f3nov cyklov za\u0165a\u017eenia, k\u00fdm sa zub nezlom\u00ed. Anal\u00fdza oleja sleduj\u00faca trend obsahu medi poskytuje 6 a\u017e 12 mesiacov v predstihu varovanie pred poruchou kolesa \u2013 \u010do umo\u017e\u0148uje pl\u00e1novan\u00fa v\u00fdmenu po\u010das pl\u00e1novan\u00e9ho obdobia \u00fadr\u017eby namiesto nepl\u00e1novanej n\u00fadzovej opravy.<\/p>\n<\/details>\n<\/div>\n

<\/p>\n

Dvojice z\u00e1vitovkov\u00fdch prevodov drvi\u010dov a triedi\u010dov pracuj\u00fa s naj\u0165a\u017e\u0161\u00edm r\u00e1zov\u00fdm za\u0165a\u017een\u00edm zo v\u0161etk\u00fdch aplik\u00e1ci\u00ed v tejto s\u00e9rii \u2013 prev\u00e1dzkov\u00e9 faktory 2,0 a\u017e 4,0, ktor\u00e9 s\u00fa 2 a\u017e 3-kr\u00e1t vy\u0161\u0161ie ako \u0161tandardn\u00e9 priemyseln\u00e9 faktory. Tabu\u013eka klasifik\u00e1cie r\u00e1zov\u00e9ho za\u0165a\u017eenia mapuje tvrdos\u0165 rudy v porovnan\u00ed s typom drvi\u010da, aby sa ur\u010dil spr\u00e1vny faktor \u2013 \u010d\u00edm sa predch\u00e1dza chyb\u00e1m pri poddimenzovan\u00ed, ktor\u00e9 sp\u00f4sobuj\u00fa katastrof\u00e1lne lomenie zubov v ter\u00e9ne a straty produkcie, ktor\u00e9 100 a\u017e 400-n\u00e1sobne prevy\u0161uj\u00fa n\u00e1klady na pohon. Vzdialen\u00e9 bansk\u00e9 lokality vy\u017eaduj\u00fa kon\u0161trukcie skr\u00ed\u0148 opravite\u013en\u00fdch v ter\u00e9ne (delen\u00e1 skri\u0148a, skrutkov\u00e9 koleso) a programy monitorovania anal\u00fdzy oleja, ktor\u00e9 odha\u013euj\u00fa vznikaj\u00face poruchy medzi fyzick\u00fdmi kontrolami. \u0160pecifik\u00e1cia sa mus\u00ed zhodova\u0165 so skuto\u010dnou kombin\u00e1ciou rudy a drvi\u010da \u2013 predvolen\u00fd faktor \u201e\u0165a\u017eobnej prev\u00e1dzky\u201c z\u00e1vitovkov\u00e9ho prevodu bu\u010f plytv\u00e1 rozpo\u010dtom (nadhodnoten\u00e9 pre m\u00e4kk\u00fa rudu), alebo sp\u00f4sobuje poruchy (podhodnoten\u00e9 pre n\u00e1razov\u00e9 drvi\u010de tvrdej rudy).<\/p>\n

Pre v\u00fdrobcov bansk\u00fdch zariaden\u00ed a t\u00edmy \u00fadr\u017eby ban\u00ed na\u0161a technick\u00e1 linka klasifikuje z\u00e1va\u017enos\u0165 n\u00e1razu a odpor\u00fa\u010da spr\u00e1vnu ve\u013ekos\u0165 r\u00e1mu, materi\u00e1l a konfigur\u00e1ciu pre servis v ter\u00e9ne. \u0160tandardn\u00fd katal\u00f3g vysokov\u00fdkonn\u00e9 z\u00e1vitovkov\u00e9 prevody<\/a> Pokr\u00fdvaj\u00fa rozmery pre \u0165a\u017ebu od 100 do 250 mm s rozostupom os\u00ed s delen\u00fdm krytom a mo\u017enos\u0165ou opravy v ter\u00e9ne. Odo\u0161lite \u0161pecifik\u00e1cia \u0165a\u017eobn\u00e9ho disku<\/a> s typom rudy, typom drvi\u010da, vzdialenos\u0165ou in\u0161tal\u00e1cie od drvi\u010da a \u010di je potrebn\u00e1 mo\u017enos\u0165 opravy v ter\u00e9ne.<\/p>\n

<\/p>\n

\n

\u0160pecifik\u00e1cia p\u00e1rov z\u00e1vitovkov\u00fdch prevodov pre bansk\u00e9 alebo lomov\u00e9 zariadenia?<\/h3>\n

Po\u0161lite typ a tvrdos\u0165 rudy, typ drvi\u010da\/triedi\u010da, bl\u00edzkos\u0165 in\u0161tal\u00e1cie k drvi\u010du, umiestnenie bane (pre pl\u00e1novanie servisu) a \u010di je potrebn\u00e1 mo\u017enos\u0165 opravy v ter\u00e9ne s delen\u00fdm krytom. Klasifikujeme z\u00e1va\u017enos\u0165 n\u00e1razu a odporu\u010d\u00edme ve\u013ekos\u0165 r\u00e1mu, materi\u00e1l a pl\u00e1n \u00fadr\u017eby.<\/p>\n

Vy\u017eiadajte si \u0161pecifik\u00e1ciu \u0165a\u017eobn\u00e9ho disku \u2192<\/a><\/p>\n<\/div>\n

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

Korea Ever-Power \u00b7 Application Engineering Guide Worm and Worm Wheel for Mining Crusher and Screening Equipment A jaw crusher biting through 400 mm granite boulders generates impact torque spikes of 4 to 6 times the steady-state mean \u2014 peak loads that arrive and vanish within 50 milliseconds. The worm gear pair driving the crusher feeder […]<\/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":[2821],"tags":[],"class_list":["post-1418","post","type-post","status-publish","format-standard","hentry","category-worm-and-worm-wheel"],"_links":{"self":[{"href":"https:\/\/worm-and-worm-wheel.com\/sk\/wp-json\/wp\/v2\/posts\/1418","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/worm-and-worm-wheel.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/worm-and-worm-wheel.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/sk\/wp-json\/wp\/v2\/comments?post=1418"}],"version-history":[{"count":2,"href":"https:\/\/worm-and-worm-wheel.com\/sk\/wp-json\/wp\/v2\/posts\/1418\/revisions"}],"predecessor-version":[{"id":1421,"href":"https:\/\/worm-and-worm-wheel.com\/sk\/wp-json\/wp\/v2\/posts\/1418\/revisions\/1421"}],"wp:attachment":[{"href":"https:\/\/worm-and-worm-wheel.com\/sk\/wp-json\/wp\/v2\/media?parent=1418"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/sk\/wp-json\/wp\/v2\/categories?post=1418"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/worm-and-worm-wheel.com\/sk\/wp-json\/wp\/v2\/tags?post=1418"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}