CS222980B1 - Apparatus for anti-overload protection of gigant excavator driving mechanisms - Google Patents

Apparatus for anti-overload protection of gigant excavator driving mechanisms Download PDF

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Publication number
CS222980B1
CS222980B1 CS726379A CS726379A CS222980B1 CS 222980 B1 CS222980 B1 CS 222980B1 CS 726379 A CS726379 A CS 726379A CS 726379 A CS726379 A CS 726379A CS 222980 B1 CS222980 B1 CS 222980B1
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Czechoslovakia
Prior art keywords
overload protection
nai nai
gigant
frame
driving mechanisms
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CS726379A
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English (en)
Inventor
Horst Buge
Rudiger Kluge
Gunther Kunag
Felix Leuschner
Udo Stahn
Hasso Sommer
Arno Wetzel
Original Assignee
Horst Buge
Rudiger Kluge
Gunther Kunag
Felix Leuschner
Udo Stahn
Hasso Sommer
Arno Wetzel
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Application filed by Horst Buge, Rudiger Kluge, Gunther Kunag, Felix Leuschner, Udo Stahn, Hasso Sommer, Arno Wetzel filed Critical Horst Buge
Publication of CS222980B1 publication Critical patent/CS222980B1/cs

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/24—Safety devices, e.g. for preventing overload
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/22—Component parts
    • E02F3/26—Safety or control devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F16H35/10—Arrangements or devices for absorbing overload or preventing damage by overload

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Retarders (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

1 222 980
Ha3BaHHe Η300~ΡθΤβΗΠΗ ΠρβΛοχρείΗΗτβΛΒΗοβ ycTpoBcTBO οτ neperpy3KH jyia npuBojxaKpynHHx KapLepnux sKCKasaTopoB.
OfoiaCTfc ΠΡΗΜΘΗβΗΗΗ Η3θ0ρβΤΘΗΗΑ
IfeodpeTeHHe KacaeTCH npeAoxpaHHTejiBHax ycipoficTB οτ nepe-ipy3KH AIIS HpHBOflQB ÓQJHdHOfi ΜΟΠξΗΟΟΤΗ, OCOÓ6HHO TJiaBBHXnpHBOfíOB Kpymiax KapBepHux sKCKasaTopos, KOTopne CKOHCTpy-HpOBaHH B ΠΟΤΟΚβ 3ΗβρΐΉΗ K3K HaOTB OHOpH EpyTOT^erO MOM6HT&jvlh mianeTapHoS nepe^ann, paóoTaioqeS b TpexBajiLHOM perare.
XapaKTepaqiaKa. HBBeoigg TeameoKaz pememii npefloxpaHHTejiBKtie ycTpoftcTBa οτ nepeipysioí jyra oneHB óojib-ihhx KpyTWix μομθητοβ, pacnanaraeMne b naoTHocra b οιιοτβ-msx npHBO.ua MHoroHepnaKOBux BKCKaBaTopoB, ημθβτ b óqjtbiuhh-CTBe cjiysaeB, khk ohhcsho b dd-ps 199, βλθμθητ κοκοτργκίίΚΗb φορΜθ Kooieca, οόραβροπϊΕώ bmocto c yicpemieiniHMK b paMeaKTHBHHMH 3ΛΘΜ6ΗΤ8ΜΗ 38Ιξβΐυί6ΗΗΗ y3ejl B CMHGJie My$TB B ΠΟΤΟΚβθΗθρίΉΗ ΟΗΟΤβΜΗ ΠρΗΒΟΑ&· - 2 - 222 980 ΠρττΗτπτπ ββδοτΒΕΗ iqpejioxpaHHTejii>Hnx ycTpoKoTB sToro pojxaCOCTOET B TOM, HTO HEHHH βθβΟΤΒΕΗ COCTaBJDUOmeft CHJI H£ffiHMaHa aKTHBHue βλθμθητη saaewieHHH (κοτορκβ oópa3yKT c κορ-nycoM KOJieca aanoBoe η ΓβΟΜβτρΗΊβοκοβ saMHKanEe) προχο^Ετnepe3 ocb BpameHHH Kopnyca KOJieca.
Jtpyrofi φορΜοδ npejioxpaHHTejiLHux ycTpoficTB o? neperpysKH,paóOTaixuisx no TOMy se npnHuany, εβληκτοη ο^ηοερθμθηηο ono-pu MoweHTa peaKUHE Kopnyca njiaHeTapHnx nepesaa, paóoTawixb TpexBajiLHOM pesime.
Tarae npeaoxpaHETejfBHue ycTpo&cTBa onHcasu b dd-ps 4333 edr-ps 694 518. Oóe κοΗοτργκίξΚΕ npefloxpaHHTejiBHux ycTpoHCTB εμθιοτ He^ocTaT-KE, KOTOpue B03HEKeffl)T B HaCTHOCTE H3-3a nonapHoro pacnOHO·"ΚΘΗΗΗ aKTKBHUX ΘΛβΜΘΗΤΟΒ 38Ε[βΠΙΙβΗΗΗ EOflaHE CHJIH, JiesaiIÍHXυρΐ(1ΠΕ3ΕΤβΛΒΗΟ βΕ8ΜβΤρ3ΛΒΗ0 ΙφΟΤΕΒΟΠΟΛΟΚΗΟ ffipyT K J^pyry.
Ohh TpeÓyBT óojujhhx paccTOHHHE jma nepejxaEE ceji e MaccHB—hoe KOHCTpyKUEE paMH, b pe3yjiLTaTe nero bosiiekojot Heánaro™npKHTHHe ycjiOBEH jsfls yupanneHEn paMH, nepejiajoiqeĚ chjih.
Ueji£ H3odpeTeHHa
UejIBK) Η300ρβΤβΗΗΗ ΗΒΠΗβΤΟΗ C03JXaHHe Πρ6£ΟΧρ2ΗΗΤ&7ΙΒΗΟΓΟycTpotcTBa οτ neperpy3KH, κοτοροβ προοτο no οβοθη τθχηη-neCKOH KOHCTpyKUEE, Ηββ&ΚΗΟ B φγΗΚΙξΚΟΗΗρΟΒβΗΕΗ, HSrOTaBJIH-BaeMO c HeóojiHinEMH 3aTpaTaMH, hocjiokho b TexodcjtysEBaHEH eyHEBepOaULHO ΗρΕΜβΗΕΜΟ. H3JIOSeHEe CyHIHOCTE Ε3Ο0ρβΤβΗΗΗ B ocHOBy E3OÓpeTeHEfl nojioseHa 3anana Tasoro KOHCTpynpo- βθηεη npejcoxpaHETejcbHoro ycTpoficTBa, HaxojtHqeroca b no- TOHHOfi ΒβΤΒΕ ΟΕΛΟΒΟΓΟ HOTOKa, HTOÓH HOCpeflCTBOM ΗΟΒΟΓΟ npEmpma fleĚcTBHn peanE3OBaTB οπτημολεβηηθ οτηοπιθηηη Harpys- ke khz nepeaanE ceji Messy ojieMeHTawH KOHCTpyKqHH e dojiee 222 980 ÓJiaronpHHTHHe ycjioB&H yoTaHOBKH κ ynpawieHHfl aah othooh-ΤβΗΒΗΟΓΟ ΑΒΗΗβΗΗΗ 8Λ6Μ6ΗΤΟΒ KOHCTpyKUHH. B ΟΟΟΤΒΘΤΟΤΒΗΗ C H3OÓp6T6HH6M 3a£aaa ρβΙΠΘΘΤΟΗ TaKHM od—pa30M, hto na OTOKOodpa3HHX θλθμθητθχ κοΗοτργκιχΗΗ, Ha-npHMep, Ha Kopnyoe padoTaEiqefi b ϊρθχβθλβηομ peaoaMe iuiaHe-TapHofi nepe^aw napajuiejiBHO och h npoTHBOHanpaBJíeHHOhoabhhho b paMe pa3MemeHu aKTHBHue sjíeMeHTH 3aneiuiemM,npenMymecTBeHHo φκκοκργκπξΗθ pojehke επη KJiHHOodpasHHeajieMeHTH, κοτορΗβ ηθχοαητοη b βκτζβηοη obh3H c πρηβολθμζ.
Ha τορίξΟΒΗχ ποΒβρχΗοοτΗΧ Kopnyca miaHeTapHoS nepe^a^HcoHJieHflroTCH τθκημ odpa3OM Haxojvn^ecfl Apyr προτηβ ApyraaKTHBHue ajieMeHTH 3anemieHHH, npezMymecTBeHHo φΗκοπργιοιίξΗθpOJEHKH HJEH KJEKH00Ópa3HUe 3ΛβΜβΗΤΚ, ΚΟΤΟρΗβ ΠΟΑ Β03ΑβΗ0ΤΒΗβΜHa Tofi ze JUDHHH AefiCTEHS ΠρΟΤΗΒΟΠΟΠΟ&ΗΟ ΗΒΠρβΒΪΙβΗΗΗΧ, ΟΟβΒΗΧ CO Ha&HMa CO3flai0T CHJIOBOe ε/εΊΗ ΓΘΟΜθΤρΗΊΘΟΚΟΘ 3a-ΜΗΚΒΗΗβ Η ΤΘΜ ΟΘΜΗΜ pa3teAHHH6MyK· CBH3B ΟΗΗΟΒΟΓΟ HOTOKaonopu Kpyrainero MOMeHTa. PaMa c ηκτηβηημη 3JieMeHTaMH 3a-ΓξβΙΚΙβΗΗΗ pacnOJiaraeTGH H ΗΗΠρβΒΛΗΘΤΟΗ Ha ΘΛβΜβΗΤβ KOHOTpyK-Hhh οηοτθμη npHBOfla mra b CTOŽKe MannmH. ΙΙΡΗΜβΡ ΗΟΠΟΗΗβΗΗΗ ΗβΟόρβΤβΗΗβ ρβΒΒΗΟΗΗΘΤΟΗ HHH6 ΠΟΑΡΟ0ΗΘβ B ΠρΗΗΣξΗΠβ HHa npHMepe imaHeTapHofi nepesann, pacnojioxeHHQií b chcts—μθ npzBosa jma KpynHoro KapLepHoro 3KOKaBaTopa.
Pho. I: npHHiqan npeAoxpaHETejiBHoro yoTpoftcTBa Ha iuia-HeTapHoS nepejtane,
Phc. 2: Bha upeAOxpaHKTejiBHoro ycipoftcTBa ot neperpy3KHHa njiaHeTapHoS nepe^ane c 3aMKHyrofí pawoS hpacnojioseHHHM b paAHaKbHOM HanpaBJíeHHH MexaHH3—MOM C03AaBHH CHJI,
Phc. 3: Bha CBepxy ijpeAoxpaHHTejEBHoro ycTpožcTBa ot ne-perpy3KH Ha pno. 2, - 4 - 222 980
Pne. 4 : Bza rrpejxoxpaHHTejiLHoro ycTpoHCTBa ot neperpy3zzHa wiaHeTapHofi nepezaze c οτζβπ&ΗΗΜζ paMaMz zpaonoaozeHHHM b TaHreHuzajiBHOM HanpaBJíeHHH Mexa~HH3M0M 003β£ΗΖΗ CZX,
Pzc. 5 : Bazm cóozy npeaoxpazzTejiLHoro ycTpoficTBa ot nepe-rpy3KH no pzc. 4.
Pzc. I noKa3UBaeT τβχΗζζβοκζβ πρζΗπζπ npeaoxpaHZ-
TejiLHoro ycTpoĚCTBa ot neperpy3zz, κοτοροβ ηβληθτοηnacTHO onopu peaKTHBHoro MOMeHTa Kopuyca nnaHeiapHofi ne—pejcanz, paóOTaiomeS b TpexBaaLHOM pexzMe. IIpzaaraeMHK κKopnycy, CKOHCTpyzpoBaHHOMy b zanecTBe zzczooópasHoroejieMeHTa zoHCTpyzuzz I, peazTZBHuS μομθητ nepe^aeTca o.ΠΟΜΟΠξΒΚ) pa3tejCHHHeM0fi CBH3Z C CZJIOBHM h/hJIZ ΓβΟΜβΤρΖΗβΟ-zzm 38MHKaHzeM Mesmy napofi βλθμθητοβ 3anenaeHZíi 3 z Ha-xoahihhmhch Ha aiieMeHTe I padonzMZ ποΒβρχΗοοτΗΜΖ 8 Ha paMy2, HanpaBJíaeMyio b onopax 4, z OTTyna b zazecTBe onopHoficzan no^aeTca nepee óoaee zaz Menee aaacTHHHyE onopy 5 BCTOfizy. ΑκΤΖΒΗΗβ ΘΖβΜβΗΤΙΙ 33ΕζβΠΧβΗΖΗ 3 8£ϋΚΖΜ3Κ)Τ0Η CZaaMZ,cooTBeTCTByton(HMH BejnrazHe peazTZBHoro MOMeHTa z aeficTByK-hjzmz npoTZBonoaóHHO ócz, κ npeayoMOTpeHHHM Ha KopnycenzaHeTapHofi nepeaaaz paóoHZM noBepxHocTHM zaz aaeMeHTaMeanemieHHH 8. Αχτηβηηθ θλθμθητκ 3anenaeHza Moiyr ÓhtbCKOHCTpyzpoBaHu Kas napa topmo3hhx zozonoz, ujióckhx zraπροφζπΒΗΗΧ, co3flawK ozaoBoe 3aMHKaHzet Taz z b zanecTBenapu θΛβΜβΗτοΒ 3anenaeHZH, npezMymecTBeHHo zaz napa φζζοζ-pyramzx poazzoB, οοβζειοπξζχ reoMeTpzqeczoe 3aMnzaHze, zazb zoMdzHauzz ozaoBoro z reoMeTpzzecKoro 38μηζ3ηζη zaznapa θλθμθητοβ 3anenaeHZHt zMeronízx $opMy οεηογο zaz HeczozB-zzx zazHLeB, npezMymecTBeHHO zaz τορςοΒΗβ syóLH.
Padozaz noBepxHocTB Ha zopnyce AOJi&Ha ζμθτβ ποβθρχηοοτβ τρβ- hhh zaz cónpflxeHHHe aeTaaz Ahh cooTBeTCTByionpix aae- μθητοβ. Co3,aaw[e pa3z>eazHHeMoe coaAZHeHze HeodxoazMue zeficTByDíaze npoTZBonoaoasHC ocz ezau C03aaKTCH npzBozoM 6 z nozajoTCH zepee napy puzarOB 7 βζτζβηημ aaeMeHTaw 3an;en- 222 980 jieHZH. Μομθητ peaKipH Kopnyca odycjiOBnzBaeT nepee sjíacTin-HyD onopy 5 OTKJiOHeHze paMH 2 Ha onpejiejiěHHHÍí yrox noBopo-Ta. 3το οτκποΗβΗΗβ ηβηηθτοη Mepoíí nepenasaeMoro RpymmeroMOMeHTa Η ΜΟΰΚβΤ HCnaiIb3OBaTI»CH K3K BXOflHaa BOOCTEa· JWtHyirpaBJíeHHH npzBona 6 z τβΜ chmhm jyia opadaTUBanza npe-SoxpaHHT&JiiHoro ycTpoÉCTBa ot neperpy3KH.
PzcyHKH 2 z 3 noKa3HBaioT npeAoxpauzTejiBHoe ycTpofioTBO,ΒΗΠΟΖΗβΉΗΟσ ΚΘΚ HOJIHOCTLE) 38ΜΗΚ9ΗΒ8Η UHaHeTapHyiD Πβρθ-Aaay pawa 2, KOTopaa c homohilk) onopu 4 ΒβΗτρζΗβοκζ Ha-HpaBHH6TCH Ha ΓΛΘΒΗΟΜ ΒββΟΜΟΜ ΒΘΛβ ZJffl CTyHZHaX KOpiiyca.3Ta pawa nojwepzzBaeTOH ho οτηοπιθηηκ) k οτοΑκθ μθιπηηη bXByx zhz HecKOJiiKHx MecTax sjíaoTHHHOÉ onopoS 5.
Pzc. 2 ·ποκ83ηββ6Τ βηλ z pzc. 3 bzh CBepxy O pajtHaJIBHOpacnojioaeHHHM m6X8hz3mom jma οο3Λ8ηηη czji Ha hktzbhhxβλθμθητθχ 3anemieHZH, zcnojiHeHHHx KaK TopMO3Hue kojiojoch 3. MexaHZ3M coctozt no cymecTBy Z3 rznpaBJízaecKoro hewehu-pa 6 z napu punaroB 7.
Kaic z3odpaseHO Ha pzoyHKax 4 z 5, p^sa 2 npenoxpaHZTejn,-ηογο ycTpoScTBa ot neperpy3KH μοζθτ duTt Tarase β οοοτβθτ-CTBHH C BHdpaHHHM ΚΟΗΗΗβΟΤΒΟΜ ΟΠΟρ 5 pa3T>eHZHeHa Ha OT^eJILHtie paMH, Ka&flaa Z3 κοτορηχ οθμοοτοητθλβηο HarrpaBJíaeTcaHa Kopnycec homoiuho nonxoflainzx onop 4. 3Ta HanpaBJíHKHnaaμοζθτ dHTB Tarase CKOHCTpyzpoBaHa ΗβποορββοτΒβΗΗο Ha ctoh-κβ MamzHH, khk 3to zeodpazeHO Ha pzoyHKe 5. Ha 3tom pzcyH-κβ aKTZBHue θλθμθητη 3aneimeHHH nonanz czji pa3patíoTaHnKaK napa pojehkob, KOTopue nepe3 napy puaaroB 7 npzaczMaioT-ca b cooTBeTCTByKHuze βηθμκζ 8. foPMyaa zsoópeTezzz 222 980 IIpeaoxpaHHTejiLHoe ycTpoficwBo οτ nepeipysKZ,’ onenHajcBHOjma npzBoza κβρΒβρΗΗΣ'ΒΚοκβΒΗΤοροΒ ζζζ λζη hqroóhhx rpz-boaob óojEbmofi moiuhocth, paóOTannero c iDiaHeTapHoS nepe-aazeft, oTJiH^aBReecH τθμ, ζτο zopnyc nzaneTapHofi nepeaazzΒΗΠΟΖΗΘΗ B ΒΗΑθ EHCKa (I) c paóOZHMH ΠΟΒθρΧΉΟΟΤΗΜΗ (8)z hto aRTHBHue aaeuesTU 3anemieHHfí (3) npezMynecTBeHHo$HKozpyranze porancz zzz κζζΗΟΒΗθ azeMezra, oBasazzue czpzBoaaMz (6), pacnonoseHH b saMKHyToft paMe (2) mm b ot-aejiBHHX paMaz - ocenapajmezzHO z zpoTZBOHanpaszezo no-JOBHXHH, ΠρΖΖβΜ ρβΜΗ ΖΜβΒΤ O£Hy ™ ΗθΟΚΟΖΒΚΟ ΤΟΖβΚ ΚρβΠ-zezzz β CTofize z onopzze yszz paM ηηχολητοη za γζθβηομΒβΛΟΜΟΜ Baze nepezazz zzz b cTofize Mamzza zzz zpz zpzwe-zeHZZ onopHHX ροζζκοΒ Ha Kopnyce nepezazz. 222 980
AHHOTaHHH npeaoxpaHHTeJTLHoe ycTpoficTBo ot neperpysKE jvlh npEBOflaKapLepHHx sKCKasaTopoB.
HsotípeTeHne othocetch k npnBonaM óojn>mofi moiuhocth,ΠρΠΜβΗΗβΜΟβ y ΓΛβΒΗΗΧ npHBOSOB 0ΟΛΒΠΙΕΧ KaptepHHX 8KCKa-rBaTOpOB. IJejiL H3oópeT6Hiia ηβληθτοη HecJiosHož KOHCTpyKUHeS npe.no-XpaHHTeJIBHOrO yCTpoňCTBa, HE3KOÍÍ CTOEMOCTBK) Ε3Γ0Τ0ΒΛ6ΗΗΗ,BHOOKOfi fíafleJRHOCTBD E MHHBMaJIBHHM T6X0ÓCJiyjKEBaHEeM.
JjfeotípeTeHHK nojwresET sahana paepaóoTaTB npenoxpaHETeJiLHoeycTpoficTBO j HaxojwmeecH b ποτοηηοζ βθτκε οεεοβογο noTOKachct6mh npHBona .Tax, etoóh peajiH30BaTB jyra nepenann craMejimy eJieMeÉTaMH KOHCTpyKmm οπτιπμβηηθ oTHomemra Ha-rpySKH Η Λ3ΤΒ ΟΤΗΟΟΕΤβΛΒΗΟΓ^ ΛΒΗΕβΗΕΗ) 3ΛβΜβΗΤ0Β KOHCTpyK-mm Bažíme ycjioBEH ycTaHOBKH z ynpaBJíeHEH. 3anana pemaeTcn τβΜ, hto y Kopnyca (I) miaHeTapnofinepenann θκτεβηηθ 3ΛβΜβΗτκ saneimennH (3), npenMyiqecTBeH-HO T0pM03HHe ΘΛβΜβΗΤΗ, ΟΠΟρΗΗβ pOJIEKE EJÍE KTHIHOOÓpaSHHeθΛΌΜθΗΤΝ, cBHsaHHHe c πρεβοαθμε (6) pacnojroEeHH b paweocenapajuiejrBHo e npoTHBOHanpaBJíeno πολββκηη c patíonEMHnOBepXHOCTHME (8) aHaJIOrHHHO C 3Λ6ΜβΗΤ3ΜΗ 38ΙίΘΙΜ6ΗΗΗ (3),KOTOpae npOESBOJIHT pa3Be£EHeHEe CBH3E B onope MOMeHTapeaxiíEE Kopnyca.

Claims (1)

  1. 222 980 f PŘEDMĚT VYNÍLEZU Zařízení k ochraně před přetížením, pro pohon těžebníchvelkorýpadel nebo podobných velkokapacitních pohonů s planeto-vou převodovkou, vyznačující se tím, že těleso planetové převo-dovky je provedeno jako kotouč (1) s'pracovními plochami (8) aže aktivní členy záběru (3) jeou převážně fixační válečky nebozkosené články, spojené s pohony (6) a umístěné v uzavřeném rá-mu (2) nebo v oddělených rámech - a jsou pohyblivé rovnoběžněs osou a v protisměru, přičemž rámy (2) mají jeden nebo více u-pínacích bodů ve stojanu a opěrné uzly rámů (2) jsou na hlavnímhnaném hřídeli převodovky nebo ve stojanu stroje nebo, v přípa-dě přidání opěrných válečků, na tělese převodovky. 4 výkresy Uznáno vynálezem na základě výsledků expertizy, provedené Úřa-dem pro vynálezectví a patentnictví, Berlín, DD
CS726379A 1978-11-22 1979-10-24 Apparatus for anti-overload protection of gigant excavator driving mechanisms CS222980B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD20923478A DD146759A3 (de) 1978-11-22 1978-11-22 Ueberlastsicherung,insbesondere fuer den antrieb von tagebaugrossgeraeten

Publications (1)

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CS222980B1 true CS222980B1 (en) 1983-08-26

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CS726379A CS222980B1 (en) 1978-11-22 1979-10-24 Apparatus for anti-overload protection of gigant excavator driving mechanisms

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DD (1) DD146759A3 (cs)
DE (1) DE2941654A1 (cs)

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DE2941654A1 (de) 1980-06-04

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