{"id":2381,"date":"2026-06-26T03:40:24","date_gmt":"2026-06-26T03:40:24","guid":{"rendered":"https:\/\/helicalcutgears.top\/?p=2381"},"modified":"2026-06-26T03:40:24","modified_gmt":"2026-06-26T03:40:24","slug":"helical-gear-profile-shift-addendum-modification","status":"publish","type":"post","link":"https:\/\/helicalcutgears.top\/cs\/helical-gear-profile-shift-addendum-modification\/","title":{"rendered":"\u0160roubov\u00e1 ozuben\u00e1 kola s posunut\u00fdm profilem \u2013 Jak pomoc\u00ed modifikace dopl\u0148ku zabr\u00e1nit pod\u0159ez\u00e1n\u00ed a korigovat vzd\u00e1lenost st\u0159edu"},"content":{"rendered":"
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\u0160roubov\u00e1 ozuben\u00e1 kola s posunut\u00fdm profilem \u2013 \u00faprava dopl\u0148ku, prevence pod\u0159ez\u00e1n\u00ed a korekce osov\u00e9 vzd\u00e1lenosti<\/h1>\n

Posun profilu v spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> \u2014 \u00famysln\u00e9 posunut\u00ed \u0159ezn\u00e9ho n\u00e1stroje vzhledem k polotovaru ozuben\u00e9ho kola b\u011bhem odvalov\u00e1n\u00ed \u2014 je jedn\u00edm z nej\u00fa\u010dinn\u011bj\u0161\u00edch, ale nejm\u00e9n\u011b pochopen\u00fdch konstruk\u010dn\u00edch n\u00e1stroj\u016f v spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> specifikace. Spr\u00e1vn\u011b aplikovan\u00fd posun profilu m\u016f\u017ee zabr\u00e1nit pod\u0159ez\u00e1n\u00ed paty zubu u pastork\u016f s n\u00edzk\u00fdm po\u010dtem zub\u016f, korigovat nestandardn\u00ed osovou vzd\u00e1lenost bez pou\u017eit\u00ed nestandardn\u00edho modulu a vyv\u00e1\u017eit \u00fanavovou \u017eivotnost v ohybu mezi pastorkem a kolem, kter\u00e9 by jinak m\u011bly nestejnou \u017eivotnost.<\/p>\n

Zadejte posun profilu pro va\u0161e \u0161ikm\u00e9 ozuben\u00e9 kolo \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

Co je to posun profilu? \u2013 Koncept posunu \u0159ezn\u00e9ho n\u00e1stroje<\/h2>\n

Ve standardu spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> P\u0159i v\u00fdrob\u011b (x = 0) je referen\u010dn\u00ed \u010d\u00e1ra \u0159ezn\u00e9ho n\u00e1stroje te\u010dn\u00e1 k rozte\u010dn\u00e9 kru\u017enici ozuben\u00e9ho kola b\u011bhem odvalov\u00e1n\u00ed nebo tvarov\u00e1n\u00ed. Posun profilu posouv\u00e1 tuto referen\u010dn\u00ed \u010d\u00e1ru radi\u00e1ln\u011b: kladn\u00fd posun (x > 0) posouv\u00e1 fr\u00e9zu sm\u011brem ven \u2013 od osy ozuben\u00e9ho kola \u2013 \u010d\u00edm\u017e odeb\u00edr\u00e1 v\u00edce materi\u00e1lu z oblasti n\u00e1stavce a ponech\u00e1v\u00e1 v\u00edce materi\u00e1lu v oblasti dedendu. V\u00fdsledkem je zub, kter\u00fd je v oblasti n\u00e1stavce (del\u0161\u00ed evolventn\u00ed bok) vy\u0161\u0161\u00ed a siln\u011bj\u0161\u00ed v oblasti ko\u0159ene zubu:<\/p>\n

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Pozitivn\u00ed posun profilu (+x)<\/p>\n

Fr\u00e9za se posunula sm\u011brem ven od osy ozuben\u00e9ho kola. spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> Zub se st\u00e1v\u00e1: tlust\u0161\u00edm u ko\u0159ene (odoln\u011bj\u0161\u00ed v\u016f\u010di \u00fanav\u011b v ohybu); del\u0161\u00edm aktivn\u00edm bokem evolventy; \u0161pi\u010dkou m\u00edrn\u011b u\u017e\u0161\u00ed. Evolventa za\u010d\u00edn\u00e1 bl\u00ed\u017ee k z\u00e1kladn\u00ed kru\u017enici \u2013 sni\u017euje se riziko pod\u0159ez\u00e1n\u00ed u pastork\u016f s n\u00edzk\u00fdm po\u010dtem zub\u016f.<\/p>\n<\/div>\n

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Negativn\u00ed posun profilu (\u2212x)<\/p>\n

Fr\u00e9za se posunula dovnit\u0159 sm\u011brem k ose ozuben\u00e9ho kola. Zub se st\u00e1v\u00e1: ten\u010d\u00edm u paty (slab\u0161\u00edm); krat\u0161\u00edm aktivn\u00edm evolventn\u00edm bokem; hrot zubu je \u0161ir\u0161\u00ed (men\u0161\u00ed riziko \u0161pi\u010dat\u00e9ho hrotu). Zvy\u0161uje riziko pod\u0159ez\u00e1n\u00ed. Pou\u017e\u00edv\u00e1 se hlavn\u011b k: zmen\u0161en\u00ed osov\u00e9 vzd\u00e1lenosti obrobku, kdy\u017e x\u2081 + x\u2082 = 0 a je upraven pouze jeden ozuben\u00fd stupe\u0148; nebo k udr\u017een\u00ed spr\u00e1vn\u00e9 osov\u00e9 vzd\u00e1lenosti, kdy\u017e m\u00e1 protilehl\u00fd pastorek kladn\u00fd posun (sou\u010dtov\u00e1 korekce).<\/p>\n<\/div>\n<\/div>\n

P\u0159\u00edpad pou\u017eit\u00ed 1 \u2013 Zabr\u00e1n\u011bn\u00ed pod\u0159ez\u00e1n\u00ed ko\u0159ene zubu u pastork\u016f s n\u00edzk\u00fdm po\u010dtem zub\u016f<\/h2>\n

Pod\u0159ez\u00e1v\u00e1n\u00ed ko\u0159ene zubu odstra\u0148uje materi\u00e1l z ko\u0159enov\u00e9ho zaoblen\u00ed, \u010d\u00edm\u017e se oslabuje spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> zub. Doch\u00e1z\u00ed k tomu, kdy\u017e po\u010det zub\u016f klesne pod minimum pro dan\u00fd \u00fahel tlaku a \u00fahel stoup\u00e1n\u00ed \u0161roubovice. Pro spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> s \u00fahlem norm\u00e1lov\u00e9ho tlaku \u03b1_n = 20\u00b0 a \u00fahlem stoup\u00e1n\u00ed \u0161roubovice \u03b2 je minim\u00e1ln\u00ed po\u010det zub\u016f bez pod\u0159ez\u00e1n\u00ed v bod\u011b x = 0:<\/p>\n

z_min (x=0) = 2 x cos \u03b2 \/ sin\u00b2\u03b1_t
\nkde \u03b1_t = arcustan(tan \u03b1_n \/ cos \u03b2)<\/p>\n

Pro \u03b2 = 20\u00b0: \u03b1_t = 21,17\u00b0, sin\u00b2\u03b1_t = 0,1303
\nz_min = 2 \u00d7 cos 20\u00b0 \/ 0,1303 = 2 \u00d7 0,9397 \/ 0,1303 = 14,4 \u2192 zaokrouhlete nahoru na z_min = 15<\/p>\n

Pro \u03b2 = 25\u00b0: \u03b1_t = 22,80\u00b0, sin\u00b2\u03b1_t = 0,1500
\nz_min = 2 \u00d7 cos 25\u00b0 \/ 0,1500 = 2 \u00d7 0,9063 \/ 0,1500 = 12,1 \u2192 z_min = 13<\/p>\n

S kladn\u00fdm posunem profilu x se minim\u00e1ln\u00ed po\u010det zub\u016f bez pod\u0159ez\u00e1n\u00ed sni\u017euje. Pro virtu\u00e1ln\u00ed (kolm\u00e1 rovina) po\u010det zub\u016f z_v = z \/ cos\u00b3\u03b2 a spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong>, minim\u00e1ln\u00ed z_v bez pod\u0159ez\u00e1n\u00ed s posunem x je p\u0159ibli\u017en\u011b:<\/p>\n

z_vmin (s posunem x) \u2248 2 \u00d7 (1 \u2212 x) \/ sin\u00b2\u03b1_n = 17,1 \u00d7 (1 \u2212 x) [pro \u03b1_n = 20\u00b0]<\/p>\n

Minim\u00e1ln\u00ed skute\u010dn\u00fd po\u010det zub\u016f \u0161ikm\u00e9ho ozuben\u00e9ho kola: z_min_actual = z_vmin \u00d7 cos\u00b3\u03b2<\/p>\n

P\u0159\u00edklady pro \u03b1_n = 20\u00b0, \u03b2 = 20\u00b0:
\nx = 0: z_vmin = 17,1 \u2192 z_min = 17,1 \u00d7 cos\u00b320\u00b0 = 14,2 \u2192 z_min = 15
\nx = 0,25: z_vmin = 12,8 \u2192 z_min = 12,8 \u00d7 0,830 = 10,6 \u2192 z_min = 11
\nx = 0,50: z_vmin = 8,55 \u2192 z_min = 8,55 \u00d7 0,830 = 7,1 \u2192 z_min = 8<\/p>\n

Praktick\u00fd p\u0159\u00ednos:<\/strong> A spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> Pastorek se z\u2081 = 10 zuby nelze vyrobit p\u0159i x = 0 bez siln\u00e9ho pod\u0159ez\u00e1n\u00ed \u2013 zaoblen\u00ed ko\u0159ene zubu je od\u0159\u00edznuto, co\u017e dramaticky oslabuje ko\u0159en zubu. P\u0159i x\u2081 = +0,50 je stejn\u00fd pastorek se z\u2081 = 10 vyrobiteln\u00fd bez pod\u0159ez\u00e1n\u00ed, s tlou\u0161\u0165kou ko\u0159ene p\u0159ibli\u017en\u011b o 15% v\u011bt\u0161\u00ed ne\u017e standardn\u00ed ko\u0159en x = 0. To umo\u017e\u0148uje velmi kompaktn\u00ed p\u0159evodov\u00e9 pom\u011bry v aplikac\u00edch s omezen\u00fdm prostorem, kde po\u010det zub\u016f pastorku mus\u00ed klesnout pod z = 15.<\/div>\n

P\u0159\u00edpad pou\u017eit\u00ed 2 \u2013 Korekce nestandardn\u00ed osov\u00e9 vzd\u00e1lenosti<\/h2>\n

Kdy\u017e je n\u00e1hrada spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> Pokud p\u00e1r mus\u00ed pasovat do st\u00e1vaj\u00edc\u00edho pouzdra s nestandardn\u00ed osovou vzd\u00e1lenost\u00ed (z d\u016fvodu opot\u0159eben\u00ed pouzdra, konstruk\u010dn\u00ed odchylky nebo p\u0159evodu z imperi\u00e1ln\u00edch na metrick\u00e9 jednotky), posun profilu umo\u017e\u0148uje dos\u00e1hnout spr\u00e1vn\u00e9 provozn\u00ed osov\u00e9 vzd\u00e1lenosti bez specifikace nestandardn\u00edho modulu. Pracovn\u00ed osov\u00e1 vzd\u00e1lenost a_w pro posunut\u00fd spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> Dvojice (x\u2081 + x\u2082 \u2260 0) je:<\/p>\n

a_w = (z\u2081 + z\u2082) \u00d7 Mn \/ (2 \u00d7 cos \u03b2) \u00d7 cos \u03b1_t \/ cos \u03b1_wt
\nkde pracovn\u00ed \u00fahel p\u0159\u00ed\u010dn\u00e9ho tlaku \u03b1_wt spl\u0148uje podm\u00ednky:
\ninv \u03b1_wt = inv \u03b1_t + 2 \u00d7 (x\u2081 + x\u2082) \u00d7 tan \u03b1_n \/ (z\u2081 + z\u2082)<\/p>\n

Pro korekci osov\u00e9 vzd\u00e1lenosti: pokud je skute\u010dn\u00e1 osov\u00e1 vzd\u00e1lenost t\u011blesa a_act = 130,5 mm, ale standardn\u00ed osov\u00e1 vzd\u00e1lenost pro M5, z\u2081=24, z\u2082=72, \u03b2=20\u00b0 je a_std = 128,0 mm, je p\u0159ebytek \u0394a = 2,5 mm. Sou\u010det posun\u016f profilu pot\u0159ebn\u00fdch k dosa\u017een\u00ed tohoto c\u00edle:<\/p>\n

\u0394a = a_w \u2212 a_std = (z\u2081+z\u2082) \u00d7 Mn\/(2cos\u03b2) \u00d7 (cos \u03b1_t\/cos \u03b1_wt \u2212 1)<\/p>\n

Pro \u0394a = 2,5 mm se z\u2081+z\u2082 = 96, Mn=5, \u03b2=20\u00b0:
\nInv \u03b1_wt lze nal\u00e9zt iterativn\u011b \u2192 (x\u2081+x\u2082) \u2248 \u0394a \u00d7 cos \u03b2 \/ (Mn \u00d7 tan \u03b1_n) = 2,5 \u00d7 0,940 \/ (5 \u00d7 0,364) \u2248 1,29<\/p>\n

To znamen\u00e1, \u017ee mezi oba p\u0159evodov\u00e9 stupn\u011b mus\u00ed b\u00fdt rozd\u011bleno x\u2081 + x\u2082 \u2248 1,29.
\nPraktick\u00e9 rozd\u011blen\u00ed: x\u2081 = +0,70, x\u2082 = +0,59 \u2013 ob\u011b kladn\u00e9, ob\u011b ozuben\u00e1 kola z\u00edsk\u00e1vaj\u00ed pevnost v ko\u0159eni.<\/p>\n

\"\u0160roubov\u00e9<\/p>\n

P\u0159esn\u011b brou\u0161en\u00e9 s posunem profilu spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> \u2014 kladn\u00fd posun profilu (x > 0) je viditeln\u00fd v \u0161ir\u0161\u00edm zaoblen\u00ed paty zubu a m\u00edrn\u011b z\u00fa\u017een\u00e9 \u0161pi\u010dce zubu. Sou\u010dinitel posunu profilu x je specifikov\u00e1n v tabulce s \u00fadaji o ozuben\u00e9m kole na v\u00fdkresu a ov\u011b\u0159en analyz\u00e1torem ozuben\u00e9ho kola z nam\u011b\u0159en\u00e9ho rozp\u011bt\u00ed W_k a odchylky d\u00e9lky te\u010dny z\u00e1kladny<\/p>\n

P\u0159\u00edpad u\u017eit\u00ed 3 \u2013 Vyv\u00e1\u017een\u00e1 \u00fanava v ohybu mezi pastorkem a kolem (Niemannova metoda)<\/h2>\n

V spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> U pohonu s p\u0159evodem u = z\u2082\/z\u2081 > 1 je ko\u0159en zubu pastorku zat\u011b\u017eov\u00e1n ukr\u00e1t \u010dast\u011bji za jednotku \u010dasu ne\u017e ko\u0159en zubu ozuben\u00e9ho kola. Pastorek proto dos\u00e1hne sv\u00e9 meze \u00fanavy v ohybu d\u0159\u00edve \u2013 pokud pastorku nen\u00ed p\u0159id\u011blen kladn\u00fd posun profilu pro zv\u00fd\u0161en\u00ed tlou\u0161\u0165ky ko\u0159ene a korek\u010dn\u00edho sou\u010dinitele nap\u011bt\u00ed v ko\u0159enov\u00e9 t\u011btiv\u011b (Y_Sa), zat\u00edmco ozuben\u00e9 kolo dos\u00e1hne z\u00e1porn\u00e9ho posunu stejn\u00e9 velikosti (x\u2081 + x\u2082 = 0 pro nezm\u011bn\u011bnou osovou vzd\u00e1lenost). Niemannova metoda pro vyv\u00e1\u017een\u00fd ohyb vol\u00ed rozlo\u017een\u00ed posunu profilu tak, aby sou\u010dinitele bezpe\u010dnosti pro ohyb dle ISO 6336-3 S_F1 (pastorek) a S_F2 (kolo) byly p\u0159ibli\u017en\u011b stejn\u00e9:<\/p>\n

\n\n\n\n\n\n\n\n\n
P\u0159evodov\u00fd pom\u011br u = z\u2082\/z\u2081<\/th>\nDoporu\u010den\u00fd x\u2081 (pastorek)<\/th>\nx\u2082 (p\u0159evodovka) = \u2212x\u2081 pro nulov\u00fd sou\u010det<\/th>\n\u00da\u010dinek<\/th>\n<\/tr>\n<\/thead>\n
u = 1,0 (stejn\u00fd po\u010det zub\u016f)<\/td>\nx\u2081 = 0 (posun nen\u00ed pot\u0159eba)<\/td>\nx\u2082 = 0<\/td>\nOba p\u0159evodov\u00e9 stupn\u011b jsou zat\u00ed\u017eeny stejn\u011b; nen\u00ed t\u0159eba korigovat \u017e\u00e1dnou nerovnov\u00e1hu<\/td>\n<\/tr>\n
u = 2,0<\/td>\nx\u2081 \u2248 +0,15 a\u017e +0,25<\/td>\nx\u2082 \u2248 \u22120,15 a\u017e \u22120,25<\/td>\nPastorek pastorku zes\u00edlen; pastorek ozuben\u00e9ho kola m\u00edrn\u011b zeslaben; \u010dist\u00fd S_F1 \u2248 S_F2<\/td>\n<\/tr>\n
u = 3,0\u20134,0<\/td>\nx\u2081 \u2248 +0,30 a\u017e +0,45<\/td>\nx\u2082 \u2248 \u22120,30 a\u017e \u22120,45<\/td>\nV\u00fdznamn\u00e9 zes\u00edlen\u00ed pastorku pastorku; obvykle standardn\u00ed doporu\u010den\u00ed pro pr\u016fmyslov\u00e9 pohony s i = 3\u20134<\/td>\n<\/tr>\n
u = 5,0+<\/td>\nx\u2081 \u2248 +0,45 a\u017e +0,60<\/td>\nx\u2082 \u2248 \u22120,45 a\u017e \u22120,60<\/td>\nMaxim\u00e1ln\u00ed doporu\u010den\u00fd rozsah pro udr\u017een\u00ed dostate\u010dn\u00e9 tlou\u0161\u0165ky hrotu na kotou\u010di (vy\u017eaduje se tlou\u0161\u0165ka hrotu \u2265 0,2 \u00d7 Mn)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
Kontrola 1 \u2013 Tlou\u0161\u0165ka hrotu:<\/strong> Kladn\u00fd posun pastorku (x\u2081 > 0) zu\u017euje jeho \u0161pi\u010dku zubu. Minim\u00e1ln\u00ed tlou\u0161\u0165ka \u0161pi\u010dky zubu na kru\u017enici mus\u00ed z\u016fstat \u2265 0,2 \u00d7 Mn, aby se zabr\u00e1nilo ostr\u00e9mu zlomu \u0161pi\u010dky. Korea Ever-Power vypo\u010d\u00edt\u00e1v\u00e1 tlou\u0161\u0165ku \u0161pi\u010dky pro ka\u017ed\u00fd posunut\u00fd profil. spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> jako sou\u010d\u00e1st kontroly objedn\u00e1vky \u2013 zu\u017euj\u00edc\u00ed se hrot za tento limit vy\u017eaduje zmen\u0161en\u00ed posunu nebo p\u0159id\u00e1n\u00ed mal\u00e9ho zkosen\u00ed hrotu.<\/p>\n

Kontrola 2 \u2013 P\u0159evodov\u00fd pom\u011br kontakt\u016f:<\/strong> Velk\u00fd sou\u010dtov\u00fd posun profilu (x\u2081 + x\u2082 > 0) zvy\u0161uje \u00fahel pracovn\u00edho tlaku \u03b1_wt, co\u017e sni\u017euje p\u0159\u00ed\u010dn\u00fd kontaktn\u00ed pom\u011br \u03b5_\u03b1. Spole\u010dnost Korea Ever-Power ov\u011b\u0159uje, \u017ee celkov\u00fd kontaktn\u00ed pom\u011br \u03b5_\u03b3 = \u03b5_\u03b1 + \u03b5_\u03b2 z\u016fst\u00e1v\u00e1 po aplikaci posunu profilu \u2265 1,2.<\/div>\n

Jak zadat posun profilu na v\u00fdkresu ozuben\u00e9ho kola<\/h2>\n

Posun profilu je specifikov\u00e1n v tabulce s \u00fadaji o p\u0159evodovce na spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> v\u00fdkres jako bezrozm\u011brn\u00fd koeficient x (vzta\u017en\u00e1 norm\u00e1lov\u00e1 rovina). Standardn\u00ed notace:<\/p>\n

P\u0159\u00edklady \u0159\u00e1dk\u016f tabulky s \u00fadaji o p\u0159evodovk\u00e1ch:
\nNorm\u00e1ln\u00ed modul: Mn = 5
\nNorm\u00e1ln\u00ed tlakov\u00fd \u00fahel: \u03b1_n = 20\u00b0
\n\u00dahel \u0161roubovice: \u03b2 = 20\u00b0 RH
\nPo\u010det zub\u016f: z = 24
\nPosun profilu: x = +0,35 \u2190 kladn\u00fd posun pro pastorek
\nOsov\u00e1 vzd\u00e1lenost: a = 255,6 mm (pracovn\u00ed, a_w nikoli a_std pro posunut\u00fd p\u00e1r)
\nPracovn\u00ed \u00fahel tlaku: \u03b1_wt = 22,4\u00b0 \u2190 se m\u011bn\u00ed, kdy\u017e x\u2081+x\u2082 \u2260 0<\/p>\n

Pro shodn\u00e9 spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> U obou p\u00e1r\u016f mus\u00ed b\u00fdt v\u00fdkresy ozuben\u00e9ho kola i pastorku uvedeny jejich jednotliv\u00e9 hodnoty x a osov\u00e1 vzd\u00e1lenost a_w. Sou\u010det x\u2081 + x\u2082 a v\u00fdsledn\u00e9 \u03b1_wt mus\u00ed b\u00fdt mezi ob\u011bma v\u00fdkresy shodn\u00e9. Spole\u010dnost Korea Ever-Power ov\u011b\u0159uje vz\u00e1jemnou kompatibilitu x\u2081 a x\u2082 nap\u0159\u00ed\u010d v\u00fdkresy. spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> p\u00e1r p\u0159ed v\u00fdrobou, aby se zajistila vnit\u0159n\u00ed konzistence obou v\u00fdkres\u016f \u2013 co\u017e je b\u011b\u017en\u00e1 chyba ve v\u00fdkresech z\u00e1kazn\u00edk\u016f, kter\u00e9 obdr\u017e\u00ed u p\u00e1r\u016f s posunut\u00fdm profilem.<\/p>\n

Ov\u011b\u0159en\u00ed \u2013 Jak analyz\u00e1tor p\u0159evod\u016f potvrzuje posun profilu<\/h2>\n

\"Analyz\u00e1tor<\/p>\n

Analyz\u00e1tor ozuben\u00fdch kol Korea Ever-Power ov\u011b\u0159uj\u00edc\u00ed posun profilu na spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> \u2014 m\u011b\u0159en\u00ed rozp\u011bt\u00ed W_k (d\u00e9lka te\u010dny z\u00e1kladny) a \u010d\u00e1st o tlou\u0161\u0165ce zubu v protokolu analyz\u00e1toru potvrzuj\u00ed, \u017ee aplikovan\u00fd posun profilu x odpov\u00edd\u00e1 specifikaci v\u00fdkresu. Hodnota W_k vy\u0161\u0161\u00ed ne\u017e standardn\u00ed nomin\u00e1ln\u00ed hodnota (x=0) indikuje, \u017ee byl aplikov\u00e1n kladn\u00fd posun.<\/p>\n

Posun profilu se ov\u011b\u0159uje nep\u0159\u00edmo m\u011b\u0159en\u00edm rozp\u011bt\u00ed W_k: nomin\u00e1ln\u00ed hodnota W_k pro posunut\u00fd profil spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> zahrnuje p\u0159\u00edsp\u011bvek posunu do \u010dlenu tlou\u0161\u0165ky zubu. Korea Ever-Power vypo\u010d\u00edt\u00e1v\u00e1 nomin\u00e1ln\u00ed hodnotu W_k pro ka\u017edou zadanou hodnotu x a uv\u00e1d\u00ed povolen\u00fd rozsah W_k (korigovan\u00fd o posun profilu) v inspek\u010dn\u00edm certifik\u00e1tu \u2013 co\u017e z\u00e1kazn\u00edk\u016fm umo\u017e\u0148uje ov\u011b\u0159it shodu s x pomoc\u00ed digit\u00e1ln\u00edho posuvn\u00e9ho m\u011b\u0159idla b\u011bhem vstupn\u00ed kontroly. Jako p\u0159\u00edm\u00fd v\u00fdrobce \u0161ikm\u00fdch ozuben\u00fdch kol<\/a>Spole\u010dnost Korea Ever-Power prov\u00e1d\u00ed n\u00e1vrh posunu profilu \u2013 v\u00fdb\u011brem x\u2081 a x\u2082 pro prevenci pod\u0159ez\u00e1n\u00ed, korekci osov\u00e9 vzd\u00e1lenosti nebo vyv\u00e1\u017een\u00e9 ohyb\u00e1n\u00ed \u2013 pro z\u00e1kazn\u00edky, kte\u0159\u00ed poskytnou sv\u00e9 parametry pohonu a osovou vzd\u00e1lenost pouzdra. Prohl\u00e9dn\u011bte si sortiment \u0161ikm\u00fdch ozuben\u00fdch kol<\/a> pro v\u0161echny standardn\u00ed a profilov\u011b posunut\u00e9 konfigurace.<\/p>\n

\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
M\u011bn\u00ed posun profilu z\u00e1kladn\u00ed kru\u017enici nebo modul \u0161ikm\u00e9ho ozuben\u00e9ho kola?<\/strong><\/p>\n

Ani jedno. Posun profilu nem\u011bn\u00ed pr\u016fm\u011br z\u00e1kladn\u00ed kru\u017enice (d_b = d \u00d7 cos \u03b1_t z\u016fst\u00e1v\u00e1 pevn\u00fd), ani modul (Mn je nastaven fr\u00e9zou a nem\u011bn\u00ed se jej\u00edm posunut\u00edm). Co se m\u011bn\u00ed, je poloha rozte\u010dn\u00e9 kru\u017enice vzhledem k z\u00e1kladn\u00ed kru\u017enici, a tedy proporce zubu (v\u00fd\u0161ka adendumu, hloubka dedendumu, tlou\u0161\u0165ka zubu na rozte\u010dn\u00e9 kru\u017enici). Evolventn\u00ed k\u0159ivka boku zubu je p\u0159ed a po posunu profilu identick\u00e1 \u2013 posun jednodu\u0161e vyu\u017e\u00edv\u00e1 jinou \u010d\u00e1st stejn\u00e9 evolventy. To znamen\u00e1 posun profilu. spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> s modulem Mn = 5 se st\u00e1le m\u016f\u017ee spr\u00e1vn\u011b spojit se standardn\u00edm ozuben\u00fdm kolem x = 0 se stejn\u00fdm Mn a \u03b1_n \u2013 profil je st\u00e1le evolventou stejn\u00e9 z\u00e1kladn\u00ed kru\u017enice, jen posunutou pod\u00e9l n\u00ed.<\/p>\n<\/div>\n

Jak\u00fd je maxim\u00e1ln\u00ed bezpe\u010dn\u00fd posun profilu pro pastorek se spir\u00e1lov\u00fdm ozuben\u00fdm kolem?<\/strong><\/p>\n

Maxim\u00e1ln\u00ed pou\u017eiteln\u00fd kladn\u00fd posun profilu je omezen tlou\u0161\u0165kou hrotu zubu: s rostouc\u00edm x se hrot zubu zu\u017euje a nakonec se za\u0161pi\u010dat\u00ed (tlou\u0161\u0165ka hrotu \u2192 0). Praktick\u00fd limit je x_max tak, aby tlou\u0161\u0165ka hrotu zubu s_a \u2265 0,2 \u00d7 Mn (minim\u00e1ln\u00ed standard spole\u010dnosti Korea Ever-Power). Pro \u03b1_n = 20\u00b0, \u03b2 = 20\u00b0, z = 15: tlou\u0161\u0165ku hrotu s_a na addendum kru\u017enici lze vypo\u010d\u00edtat z evolventn\u00ed geometrie \u2013 maxim\u00e1ln\u00ed x p\u0159ed za\u0161pi\u010dat\u011bn\u00edm je p\u0159ibli\u017en\u011b x_max \u2248 0,55\u20130,65 pro z = 15. Pro z = 24: x_max \u2248 0,70\u20130,80. Za x_max mus\u00ed b\u00fdt hrot zubu zkr\u00e1cen (redukce addendum), aby se zachovala minim\u00e1ln\u00ed tlou\u0161\u0165ka hrotu, co\u017e sni\u017euje aktivn\u00ed d\u00e9lku profilu a t\u00edm i kontaktn\u00ed pom\u011br. Spole\u010dnost Korea Ever-Power prov\u00e1d\u00ed kontrolu tlou\u0161\u0165ky hrotu pro ka\u017ed\u00fd posunut\u00fd profil. spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong>.<\/p>\n<\/div>\n

Lze st\u00e1vaj\u00edc\u00ed odvalovac\u00ed ozuben\u00e9 kolo se \u0161roubovicov\u00fdm obr\u00e1b\u011bn\u00edm p\u0159eobjednat s posunem profilu bez zm\u011bny obr\u00e1b\u011bc\u00edho stroje?<\/strong><\/p>\n

Ano \u2013 stejn\u00e1 odvalovac\u00ed fr\u00e9za pou\u017eit\u00e1 pro standardn\u00ed ozuben\u00e9 kolo s osou x = 0 m\u016f\u017ee dos\u00e1hnout libovoln\u00e9ho posunu profilu od p\u0159ibli\u017en\u011b x = \u22120,5 do x = +0,8 pouh\u00fdm nastaven\u00edm radi\u00e1ln\u00ed hloubky p\u0159\u00edsuvu (st\u0159edov\u00e1 vzd\u00e1lenost mezi osou odvalovac\u00ed fr\u00e9zy a osou ozuben\u00e9ho kola b\u011bhem \u0159ez\u00e1n\u00ed). Nov\u00e1 odvalovac\u00ed fr\u00e9za nen\u00ed pot\u0159eba. Pro odvalov\u00e1n\u00ed s posunem profilu spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> P\u0159i brou\u0161en\u00ed CNC bruska podobn\u011b upravuje brusn\u00fd cyklus pro aplikaci posunu pomoc\u00ed softwarov\u00e9ho nastaven\u00ed profilu \u2013 v praktick\u00e9m rozsahu |x| \u2264 0,7 nen\u00ed nutn\u00e1 \u017e\u00e1dn\u00e1 zm\u011bna orovn\u00e1v\u00e1n\u00ed brusn\u00e9ho kotou\u010de. Korea Ever-Power aplikuje libovoln\u00fd zadan\u00fd posun profilu na libovoln\u00fd spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong> s pou\u017eit\u00edm standardn\u00edch kombinac\u00ed modul\u00e1rn\u00edch odvalovac\u00edch fr\u00e9z a brusn\u00fdch kotou\u010d\u016f bez nutnosti v\u00fdm\u011bny n\u00e1stroj\u016f nebo dopadu na dodac\u00ed lh\u016ftu.<\/p>\n<\/div>\n

Jak analyz\u00e1tor ozuben\u00fdch kol zjist\u00ed, zda m\u00e1 \u0161ikm\u00e9 ozuben\u00e9 kolo spr\u00e1vn\u00fd posun profilu?<\/strong><\/p>\n

Analyz\u00e1tor ozuben\u00fdch kol m\u011b\u0159\u00ed d\u00e9lku te\u010dny z\u00e1kladny (ekvivalentn\u00ed m\u011b\u0159en\u00ed rozp\u011bt\u00ed W_k) jako sou\u010d\u00e1st posouzen\u00ed tlou\u0161\u0165ky zubu. Pro profilov\u011b posunut\u00fd spir\u00e1lov\u00e9 ozuben\u00e9 kolo<\/strong>, nam\u011b\u0159en\u00e1 hodnota W_k p\u0159ekra\u010duje nomin\u00e1ln\u00ed hodnotu x = 0 o: \u0394W_k = 2 \u00d7 x \u00d7 Mn \u00d7 sin \u03b1_n \u00d7 cos \u03b1_n (p\u0159\u00edsp\u011bvek posunu profilu k m\u011b\u0159en\u00ed rozp\u011bt\u00ed). Zpr\u00e1vy analyz\u00e1tor\u016f Korea Ever-Power zahrnuj\u00ed nomin\u00e1ln\u00ed hodnotu W_k pro zadanou hodnotu x, tak\u017ee nam\u011b\u0159enou hodnotu W_k lze p\u0159\u00edmo porovnat \u2013 nam\u011b\u0159en\u00e1 hodnota W_k nad nebo pod nomin\u00e1ln\u00ed hodnotou korigovanou na posun profilu nazna\u010duje, \u017ee b\u011bhem \u0159ez\u00e1n\u00ed byl pou\u017eit nespr\u00e1vn\u00fd posun. To umo\u017e\u0148uje jednoduchou numerickou kontrolu shody s posunem profilu bez nutnosti jak\u00e9hokoli speci\u00e1ln\u00edho nastaven\u00ed analyz\u00e1toru nad r\u00e1mec standardn\u00edho m\u011b\u0159en\u00ed tlou\u0161\u0165ky zubu.<\/p>\n<\/div>\n

\n

N\u00e1vrh posunu profilu pro va\u0161i aplikaci se \u0161ikm\u00fdm ozuben\u00edm<\/h2>\n

Uve\u010fte po\u010det zub\u016f, modul, \u00fahel \u0161roubovice, skute\u010dnou osovou vzd\u00e1lenost sk\u0159\u00edn\u011b a p\u0159evodov\u00fd pom\u011br. Korea Ever-Power vypo\u010d\u00edt\u00e1 spr\u00e1vn\u00e9 hodnoty x\u2081 a x\u2082 pro v\u00e1\u0161 \u00fa\u010del \u2013 prevenci pod\u0159ez\u00e1n\u00ed, korekci osov\u00e9 vzd\u00e1lenosti nebo vyv\u00e1\u017een\u00e9 ohyb\u00e1n\u00ed \u2013 a p\u0159ed v\u00fdrobou ov\u011b\u0159\u00ed tlou\u0161\u0165ku hrotu a kontaktn\u00ed pom\u011br.<\/p>\n

Vy\u017e\u00e1dat si v\u00fdpo\u010det posunu profilu<\/a>
\nProduktov\u00e1 \u0159ada \u0161ikm\u00fdch ozuben\u00fdch kol<\/a><\/div>\n

N\u00e1vrh koeficientu x \u00b7 Kontrola pod\u0159ez\u00e1n\u00ed \u00b7 Ov\u011b\u0159en\u00ed tlou\u0161\u0165ky hrotu \u00b7 Kontrola kontaktn\u00edho pom\u011bru \u00b7 Rozsah W_k pro kontrolu \u00b7 Bez v\u00fdm\u011bny n\u00e1stroj\u016f<\/p>\n<\/div>\n

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

\u0160roubov\u00e1 ozuben\u00e1 kola s posunut\u00fdm profilem \u2013 \u00faprava dopl\u0148k\u016f, prevence pod\u0159ez\u00e1n\u00ed a korekce vzd\u00e1lenosti st\u0159edu Profilov\u00fd posun u spir\u00e1lov\u00e9ho ozuben\u00e9ho kola \u2013 \u00famysln\u00e9 posunut\u00ed \u0159ezn\u00e9ho n\u00e1stroje vzhledem k polotovaru ozuben\u00e9ho kola b\u011bhem odvalov\u00e1n\u00ed \u2013 je jedn\u00edm z nej\u00fa\u010dinn\u011bj\u0161\u00edch, ale nejm\u00e9n\u011b pochopen\u00fdch konstruk\u010dn\u00edch n\u00e1stroj\u016f p\u0159i specifikaci spir\u00e1lov\u00fdch ozuben\u00fdch kol. Spr\u00e1vn\u011b aplikovan\u00fd profilov\u00fd posun m\u016f\u017ee [\u2026]<\/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":[3082],"tags":[],"class_list":["post-2381","post","type-post","status-publish","format-standard","hentry","category-helical-gears"],"_links":{"self":[{"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/posts\/2381","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/comments?post=2381"}],"version-history":[{"count":1,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/posts\/2381\/revisions"}],"predecessor-version":[{"id":2382,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/posts\/2381\/revisions\/2382"}],"wp:attachment":[{"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/media?parent=2381"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/categories?post=2381"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/helicalcutgears.top\/cs\/wp-json\/wp\/v2\/tags?post=2381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}