{"id":2386,"date":"2026-06-26T03:46:08","date_gmt":"2026-06-26T03:46:08","guid":{"rendered":"https:\/\/helicalcutgears.top\/?p=2386"},"modified":"2026-06-26T03:46:08","modified_gmt":"2026-06-26T03:46:08","slug":"helical-gear-bore-keyway-specification-din-6885","status":"publish","type":"post","link":"https:\/\/helicalcutgears.top\/cs\/helical-gear-bore-keyway-specification-din-6885\/","title":{"rendered":"Specifikace otvoru a dr\u00e1\u017eky pro pero s spir\u00e1lov\u00fdm ozuben\u00edm \u2014 Rozm\u011bry pera DIN 6885, tolerance H7 a pr\u016fvodce spoji h\u0159\u00eddele"},"content":{"rendered":"
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Specifikace otvoru a dr\u00e1\u017eky pro pero s spir\u00e1lov\u00fdm ozuben\u00edm \u2014 DIN 6885 Rozm\u011bry pera, tolerance otvoru a spoje h\u0159\u00eddel\u00ed<\/h1>\n

Vrt\u00e1n\u00ed a dr\u00e1\u017eka pro pero spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> ur\u010dit, zda ozuben\u00e9 kolo spolehliv\u011b p\u0159en\u00e1\u0161\u00ed kroutic\u00ed moment na h\u0159\u00eddel po celou dobu sv\u00e9 \u017eivotnosti, nebo zda doch\u00e1z\u00ed k prokluzov\u00e1n\u00ed, prask\u00e1n\u00ed a selh\u00e1v\u00e1n\u00ed na rozhran\u00ed h\u0159\u00eddel-n\u00e1boj dlouho p\u0159edt\u00edm, ne\u017e se zuby ozuben\u00e9ho kola opot\u0159ebuj\u00ed. Volba spr\u00e1vn\u00e9 tolerance d\u00edry (H7, K7 nebo p\u0159esah P7), rozm\u011br\u016f dr\u00e1\u017eky pro pero dle DIN 6885-1 a tlou\u0161\u0165ky st\u011bny n\u00e1boje je rozhodnut\u00ed o specifikaci, kter\u00e9 m\u00e1 stejn\u00fd v\u00fdznam jako parametry zubu ozuben\u00e9ho kola \u2013 p\u0159esto se s n\u00edm \u010dasto zach\u00e1z\u00ed s men\u0161\u00ed d\u016fslednost\u00ed ne\u017e s konstrukc\u00ed samotn\u00e9ho zubu.<\/p>\n

Potvr\u010fte specifikaci otvoru pro v\u00e1\u0161 p\u0159evod \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

T\u0159i typy spojen\u00ed h\u0159\u00eddel\u00ed pro \u0161ikm\u00e1 ozuben\u00e1 kola<\/h2>\n

A spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> je spojen s h\u0159\u00eddel\u00ed jedn\u00edm ze t\u0159\u00ed mechanism\u016f, z nich\u017e ka\u017ed\u00fd je vhodn\u00fd pro jin\u00fd rozsah kroutic\u00edho momentu a frekvenci mont\u00e1\u017ee:<\/p>\n

\n
Paraleln\u00ed pero (DIN 6885-1) \u2013 Nejb\u011b\u017en\u011bj\u0161\u00ed<\/strong><\/p>\n

Obd\u00e9ln\u00edkov\u00fd ocelov\u00fd kl\u00ed\u010d je zasunut do odpov\u00eddaj\u00edc\u00edch dr\u00e1\u017eek v h\u0159\u00eddeli i v spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> otvor, p\u0159en\u00e1\u0161ej\u00edc\u00ed kroutic\u00ed moment p\u0159es smykovou plochu pera. Tolerance otvoru H7 (v\u016fle) \u2013 ozuben\u00e9 kolo lze nasouvat a sn\u00edmat na h\u0159\u00eddel ru\u010dn\u011b nebo lehk\u00fdm tlakem. Vhodn\u00e9 pro ozuben\u00e1 kola vy\u017eaduj\u00edc\u00ed pravidelnou demont\u00e1\u017e pro \u00fadr\u017ebu. Toto je v\u00fdchoz\u00ed p\u0159ipojen\u00ed pro pr\u016fmyslov\u00e9 pou\u017eit\u00ed. \u0161ikm\u00e1 ozuben\u00e1 kola<\/strong> v M3\u2013M32.<\/p>\n<\/div>\n

Ulo\u017een\u00ed s p\u0159esahem (bez pera) \u2013 vysok\u00fd utahovac\u00ed moment<\/strong><\/p>\n

Tolerance otvoru P7 nebo R7 \u2013 spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> se nalisuje nebo smr\u0161\u0165uje na h\u0159\u00eddel s radi\u00e1ln\u00edm p\u0159esahem 0,01\u20130,05 mm. To\u010div\u00fd moment se p\u0159en\u00e1\u0161\u00ed t\u0159en\u00edm na rozhran\u00ed h\u0159\u00eddele a otvoru; nepou\u017e\u00edv\u00e1 se pero. V\u00fdhody: \u017e\u00e1dn\u00e1 koncentrace nap\u011bt\u00ed z dr\u00e1\u017eky pro pero; pro kroutic\u00ed moment je k dispozici cel\u00e1 plocha otvoru; \u017e\u00e1dn\u00e9 t\u0159en\u00ed v m\u00edst\u011b kontaktu s perem. Nev\u00fdhody: vy\u017eaduje hydraulick\u00fd lis nebo oh\u0159ev pro instalaci a demont\u00e1\u017e. Pou\u017e\u00edv\u00e1 se pro trval\u00e1 spojen\u00ed s vysok\u00fdm kroutic\u00edm momentem v t\u011b\u017ek\u00e9m pr\u016fmyslu.<\/p>\n<\/div>\n

Dr\u00e1\u017ekov\u00e1n\u00ed (DIN 5480) \u2013 vysok\u00fd to\u010div\u00fd moment + \u010dast\u00e1 demont\u00e1\u017e<\/strong><\/p>\n

Evolventn\u00ed dr\u00e1\u017ekov\u00e1n\u00ed (DIN 5480) s mnoha mal\u00fdmi zuby po obvodu otvoru rozkl\u00e1d\u00e1 kroutic\u00ed moment na velkou kontaktn\u00ed plochu, co\u017e umo\u017e\u0148uje mnohem vy\u0161\u0161\u00ed kroutic\u00ed moment ne\u017e jedno pero p\u0159i stejn\u00e9m pr\u016fm\u011bru h\u0159\u00eddele a z\u00e1rove\u0148 je snadno demontovateln\u00e9. Pou\u017e\u00edv\u00e1 se pro spoje hnac\u00edch h\u0159\u00eddel\u00ed vozidel s vysok\u00fdm kroutic\u00edm momentem, p\u0159evodovky je\u0159\u00e1b\u016f a jak\u00e9koli aplikace, kde spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> mus\u00ed b\u00fdt opakovan\u011b demontov\u00e1ny a znovu instalov\u00e1ny bez speci\u00e1ln\u00edho vybaven\u00ed.<\/p>\n<\/div>\n<\/div>\n

Rozm\u011bry pera DIN 6885-1 \u2013 referen\u010dn\u00ed tabulka<\/h2>\n

Norma DIN 6885, \u010d\u00e1st 1, specifikuje standardn\u00ed rozm\u011bry pera (Passfeder) pro dan\u00fd pr\u016fm\u011br h\u0159\u00eddele. \u0160\u00ed\u0159ka pera b a v\u00fd\u0161ka h se vol\u00ed z tabulky norem na z\u00e1klad\u011b pr\u016fm\u011bru h\u0159\u00eddele v m\u00edst\u011b... spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> otvor:<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Rozsah pr\u016fm\u011br\u016f h\u0159\u00eddele (mm)<\/th>\n\u0160\u00ed\u0159ka kl\u00ed\u010de b (mm)<\/th>\nV\u00fd\u0161ka kl\u00ed\u010de (mm)<\/th>\nHloubka v h\u0159\u00eddeli t\u2081 (mm)<\/th>\nHloubka v n\u00e1boji t\u2082 (mm)<\/th>\n<\/tr>\n<\/thead>\n
17\u201322<\/td>\n6<\/td>\n6<\/td>\n3.5<\/td>\n2.8<\/td>\n<\/tr>\n
22\u201330<\/td>\n8<\/td>\n7<\/td>\n4.0<\/td>\n3.3<\/td>\n<\/tr>\n
30\u201338<\/td>\n10<\/td>\n8<\/td>\n5.0<\/td>\n3.3<\/td>\n<\/tr>\n
38\u201344<\/td>\n12<\/td>\n8<\/td>\n5.0<\/td>\n3.3<\/td>\n<\/tr>\n
44\u201350<\/td>\n14<\/td>\n9<\/td>\n5.5<\/td>\n3.8<\/td>\n<\/tr>\n
50\u201358<\/td>\n16<\/td>\n10<\/td>\n6.0<\/td>\n4.3<\/td>\n<\/tr>\n
58\u201365<\/td>\n18<\/td>\n11<\/td>\n7.0<\/td>\n4.4<\/td>\n<\/tr>\n
65\u201375<\/td>\n20<\/td>\n12<\/td>\n7.5<\/td>\n4.9<\/td>\n<\/tr>\n
75\u201385<\/td>\n22<\/td>\n14<\/td>\n9.0<\/td>\n5.4<\/td>\n<\/tr>\n
85\u201395<\/td>\n25<\/td>\n14<\/td>\n9.0<\/td>\n5.4<\/td>\n<\/tr>\n
95\u2013110<\/td>\n28<\/td>\n16<\/td>\n10.0<\/td>\n6.4<\/td>\n<\/tr>\n
110\u2013130<\/td>\n32<\/td>\n18<\/td>\n11.0<\/td>\n7.4<\/td>\n<\/tr>\n
130\u2013150<\/td>\n36<\/td>\n20<\/td>\n12.0<\/td>\n8.4<\/td>\n<\/tr>\n
150\u2013170<\/td>\n40<\/td>\n22<\/td>\n13.0<\/td>\n9.4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Zdroj: DIN 6885-1:2019 (tvar A, ploch\u00e9 pero, zaoblen\u00e9 konce). t\u2081 = hloubka dr\u00e1\u017eky pro pero v h\u0159\u00eddeli, t\u2082 = hloubka dr\u00e1\u017eky pro pero v n\u00e1boji (spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> V\u00fd\u0161ka pera h zasahuje do dr\u00e1\u017eek pro pero na h\u0159\u00eddeli i n\u00e1boji; celkov\u00e1 hloubka z\u00e1b\u011bru = t\u2081 + t\u2082 \u2248 h s malou v\u016fl\u00ed na horn\u00ed stran\u011b pera.<\/p>\n

V\u00fdb\u011br tolerance d\u00edry \u2013 vysv\u011btlen\u00ed H7, K7 a P7<\/h2>\n

\"\u0160roubovit\u00fd<\/p>\n

\u0160roubovit\u00fd spoj ozuben\u00e9ho h\u0159\u00eddele \u2013 tolerance d\u00edry (v\u016fle H7, p\u0159echod K7 nebo p\u0159esah P7) ur\u010duje zp\u016fsob mont\u00e1\u017ee a kapacitu kroutic\u00edho momentu na rozhran\u00ed d\u00edry a h\u0159\u00eddele. Pero DIN 6885-1 p\u0159en\u00e1\u0161\u00ed kroutic\u00ed moment v sestav\u00e1ch s v\u016fl\u00ed H7; spoje s p\u0159esahem p\u0159en\u00e1\u0161ej\u00ed kroutic\u00ed moment t\u0159en\u00edm bez pou\u017eit\u00ed pera.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Tolerance d\u00edry (ISO 286-1)<\/th>\nTyp fit<\/th>\nV\u016fle nebo p\u0159esah p\u0159i \u230050 mm<\/th>\nMetoda mont\u00e1\u017ee<\/th>\nUve\u010fte kdy<\/th>\n<\/tr>\n<\/thead>\n
H7<\/td>\nV\u016fle (s h\u0159\u00eddel\u00ed h6)<\/td>\n+0,000 \/ +0,025 mm v\u016fle<\/td>\nRu\u010dn\u00ed tlak nebo lehk\u00e9 kladivo; kl\u00ed\u010d p\u0159en\u00e1\u0161\u00ed kroutic\u00ed moment<\/td>\nStandardn\u011b odn\u00edmateln\u00e9 spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong>kl\u00ed\u010d pot\u0159ebn\u00fd pro utahovac\u00ed moment<\/td>\n<\/tr>\n
K7<\/td>\nP\u0159echod (s h\u0159\u00eddel\u00ed k6)<\/td>\n\u22120,002 \/ +0,023 mm (p\u0159echod)<\/td>\nLehk\u00fd stisk; kl\u00e1vesa zvy\u0161uje utahovac\u00ed moment<\/td>\nSn\u00ed\u017een\u00e9 riziko vibrac\u00ed\/t\u0159en\u00ed v porovn\u00e1n\u00ed s H7; st\u0159edn\u00ed frekvence demont\u00e1\u017ee<\/td>\n<\/tr>\n
M7<\/td>\nP\u0159echod \/ interference sv\u011btla<\/td>\n\u22120,009 \/ +0,016 mm<\/td>\nLis (nejl\u00e9pe hydraulick\u00fd)<\/td>\n\u010cast\u00e9 odstra\u0148ov\u00e1n\u00ed; lep\u0161\u00ed udr\u017een\u00ed kroutic\u00edho momentu ne\u017e kl\u00ed\u010d H7+ pro reverzaci z\u00e1t\u011b\u017ee<\/td>\n<\/tr>\n
P7<\/td>\nRu\u0161en\u00ed<\/td>\ninterference \u22120,026 \/ \u22120,001 mm<\/td>\nHydraulick\u00fd lis (10\u201330 tun); nebo oh\u0159ev ozuben\u00e9ho kola na 150\u2013200 \u00b0C<\/td>\nTrval\u00e9 nebo \u0159\u00eddce demontovateln\u00e9 spojen\u00ed; vysok\u00e1 reverzn\u00ed z\u00e1t\u011b\u017e; p\u0159i st\u0159edn\u00edm utahovac\u00edm momentu nen\u00ed pot\u0159eba kl\u00ed\u010d<\/td>\n<\/tr>\n
H6<\/td>\nP\u0159esn\u00e1 v\u016fle<\/td>\n+0,000 \/ +0,016 mm (pevn\u011bj\u0161\u00ed ne\u017e H7)<\/td>\nSelektivn\u00ed uchycen\u00ed \u2013 mus\u00ed b\u00fdt sp\u00e1rov\u00e1no s odpov\u00eddaj\u00edc\u00ed h\u0159\u00eddel\u00ed<\/td>\nP\u0159esn\u00e9 indexov\u00e1n\u00ed nebo registrov\u00e1n\u00ed; servo p\u0159evodovky, kde je kritick\u00e1 soust\u0159ednost<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Trh\u00e1n\u00ed na v\u016fli H7 p\u0159i reverzn\u00edm zat\u00ed\u017een\u00ed:<\/strong> A spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> s otvorem H7 a standardn\u00edm kl\u00ed\u010dem DIN je p\u0159i cyklick\u00e9m reverzn\u00edm zat\u00ed\u017een\u00ed n\u00e1chyln\u00e9 k t\u0159ec\u00ed korozi na rozhran\u00ed otvoru a h\u0159\u00eddele \u2013 i kdy\u017e kl\u00ed\u010d p\u0159en\u00e1\u0161\u00ed kroutic\u00ed moment, mikropohyb v meze\u0159e mezi otvorem a h\u0159\u00eddel\u00ed zp\u016fsobuje oxida\u010dn\u00ed opot\u0159eben\u00ed, kter\u00e9 postupn\u011b zv\u011bt\u0161uje otvor. Pro reverzn\u00ed zat\u00ed\u017een\u00ed spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> V aplikac\u00edch (je\u0159\u00e1bov\u00e9 kladkostroje, tiska\u0159sk\u00e9 stroje, obousm\u011brn\u00e9 dopravn\u00edky) doporu\u010duje spole\u010dnost Korea Ever-Power bu\u010f p\u0159echodov\u00e9 ulo\u017een\u00ed K7 nebo M7 pro minimalizaci mikropohyb\u016f vrt\u00e1n\u00ed a h\u0159\u00eddele, nebo uspo\u0159\u00e1d\u00e1n\u00ed s dvojit\u00fdm perem pro zv\u00fd\u0161en\u00ed vlivu interference vrt\u00e1n\u00ed a h\u0159\u00eddele v d\u016fsledku kontaktu pera.<\/div>\n

Minim\u00e1ln\u00ed tlou\u0161\u0165ka st\u011bny \u2013 od otvoru k patn\u00ed kru\u017enici<\/h2>\n

Tlou\u0161\u0165ka st\u011bny mezi spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> Vrt\u00e1n\u00ed a kru\u017enice paty ozuben\u00e9ho kola mus\u00ed b\u00fdt dostate\u010dn\u00e9, aby se zabr\u00e1nilo prask\u00e1n\u00ed v pat\u011b zubu b\u011bhem tepeln\u00e9ho zpracov\u00e1n\u00ed (tepeln\u00e9 gradienty v tenk\u00fdch \u0159ezech zp\u016fsobuj\u00ed zbytkov\u00e1 nap\u011bt\u00ed, kter\u00e1 mohou v\u00e9st k prask\u00e1n\u00ed kalen\u00edm) a aby se zabr\u00e1nilo deformaci \u010deln\u00ed plochy n\u00e1boje pod kontaktn\u00edm tlakem lisovan\u00e9ho spoje:<\/p>\n

Minim\u00e1ln\u00ed tlou\u0161\u0165ka st\u011bny: t_wall \u2265 2,5 \u00d7 Mn (korejsk\u00e1 norma Ever-Power pro cementovan\u00e1 ozuben\u00e1 kola)
\nt_wall \u2265 2,0 \u00d7 Mn (minimum pro ozuben\u00e1 kola QT p\u0159i m\u00edrn\u00e9m zat\u00ed\u017een\u00ed)<\/p>\n

Kontrola zdi:
\nPr\u016fm\u011br ko\u0159enov\u00e9 kru\u017enice d_f = Mn \u00d7 (z \u2212 2,5) \/ cos \u03b2 (standardn\u00ed dedendum 1,25 \u00d7 Mn)
\nMaxim\u00e1ln\u00ed pr\u016fm\u011br otvoru d_bore_max = d_f \u2212 2 \u00d7 t_wall_min<\/p>\n

P\u0159\u00edklad: M8, z=30, \u03b2=20\u00b0, cementace:
\nd_f = 8 \u00d7 (30 \u2212 2,5) \/ cos20\u00b0 = 8 \u00d7 27,5 \/ 0,9397 = 234,1 mm
\nt_st\u011bny_min = 2,5 \u00d7 8 = 20 mm
\nd_bore_max = 234,1 \u2212 2 \u00d7 20 = 194,1 mm<\/p>\n

V tomto p\u0159\u00edkladu je otvor v\u011bt\u0161\u00ed ne\u017e 194 mm spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> by poru\u0161ilo minim\u00e1ln\u00ed tlou\u0161\u0165ku st\u011bny a riskovalo by vznik prask\u00e1n\u00ed kalen\u00edm b\u011bhem cementace nebo poru\u0161en\u00ed \u010deln\u00ed plochy n\u00e1boje p\u0159i instalaci lisov\u00e1n\u00edm. Spole\u010dnost Korea Ever-Power kontroluje omezen\u00ed tlou\u0161\u0165ky st\u011bny ve f\u00e1zi kontroly v\u00fdkresu a p\u0159ed zah\u00e1jen\u00edm v\u00fdroby ozna\u010d\u00ed jakoukoli kombinaci modulu d\u00edry, kter\u00e1 poru\u0161uje minimum.<\/p>\n

Dvojit\u00e1 dr\u00e1\u017eka pro pero \u2013 pro velmi vysok\u00fd to\u010div\u00fd moment na velk\u00fdch modulov\u00fdch ozuben\u00fdch kolech<\/h2>\n

Pokud po\u017eadovan\u00fd kroutic\u00ed moment p\u0159ekro\u010d\u00ed kapacitu jednoho kl\u00ed\u010de dle DIN 6885-1 p\u0159i dan\u00e9m pr\u016fm\u011bru h\u0159\u00eddele, dva kl\u00ed\u010de um\u00edst\u011bn\u00e9 diametr\u00e1ln\u011b protilehle (o 180\u00b0 od sebe) zdvojn\u00e1sob\u00ed celkovou kontaktn\u00ed plochu kl\u00ed\u010de a sn\u00ed\u017e\u00ed smykov\u00e9 nap\u011bt\u00ed na kl\u00ed\u010d na polovinu. Dvojit\u00e9 dr\u00e1\u017eky pro kl\u00ed\u010de jsou standardem pro \u0161ikm\u00e1 ozuben\u00e1 kola<\/strong> s pr\u016fm\u011brem h\u0159\u00eddele nad p\u0159ibli\u017en\u011b 150 mm u pohon\u016f s vysok\u00fdm to\u010div\u00fdm momentem. Dv\u011b dr\u00e1\u017eky pro pero mus\u00ed b\u00fdt um\u00edst\u011bny p\u0159esn\u011b pod \u00fahlem 180\u00b0 \u2013 zm\u011b\u0159eno a ov\u011b\u0159eno sou\u0159adnicov\u00fdm m\u011b\u0159ic\u00edm strojem po obr\u00e1b\u011bn\u00ed. \u00dahlov\u00e1 odchylka mezi dv\u011bma dr\u00e1\u017ekami pro pero v\u011bt\u0161\u00ed ne\u017e \u00b10,1\u00b0 vytv\u00e1\u0159\u00ed nerovnom\u011brn\u00e9 zat\u00ed\u017een\u00ed pera, co\u017e efektivn\u011b sni\u017euje kroutic\u00ed moment u dvojit\u00e9ho pera na p\u0159ibli\u017en\u011b 1,6\u00d7 m\u00edsto 2\u00d7 hodnoty u jednoho pera.<\/p>\n

Dr\u00e1\u017ekovan\u00fd spoj dle DIN 5480 \u2013 Kdy zvolit dr\u00e1\u017ekovan\u00fd spoj p\u0159ed perem<\/h2>\n

Evolventn\u00ed dr\u00e1\u017ekovan\u00fd n\u00e1boj dle DIN 5480 nahrazuje jednoduchou dr\u00e1\u017eku pro pero 10\u201380 mal\u00fdmi dr\u00e1\u017ekovan\u00fdmi zuby s evolventn\u00edm profilem po obvodu otvoru. Kroutic\u00ed moment dr\u00e1\u017eky p\u0159evy\u0161uje kroutic\u00ed moment jedn\u00e9 dr\u00e1\u017eky pro pero 3\u20138kr\u00e1t p\u0159i stejn\u00e9m pr\u016fm\u011bru h\u0159\u00eddele, proto\u017ee kroutic\u00ed moment je rozlo\u017een na mnoho zub\u016f, nikoli soust\u0159ed\u011bn na jednu dr\u00e1\u017eku. Dr\u00e1\u017ekov\u00e1n\u00ed nad perem zvolte, kdy\u017e:<\/p>\n