Electro-hydraulic grab yog ib qho tseem ceeb ntawm cov khoom siv niaj hnub ua haujlwm, dav siv hauv cov chaw nres nkoj, metallurgical nroj tsuag, thermal fais fab chaw nres tsheb, khib nyiab incineration chaw, thiab kev tsim kho cov phiaj xwm. Piv nrog rau cov khoom siv ib txwm siv, electro-hydraulic grabs muab cov txiaj ntsig tseem ceeb- xws li lub zog kaw siab, kev ua haujlwm zoo dua, kev tswj xyuas meej, thiab txo cov suab nrov nrov- ua rau lawv xaiv rau siab -tonnage, siab - zaus tuav haujlwm.
Nyob rau hauv cov nqe lus ntawm lub electro-hydraulic grab's system architecture, ib tug ua tiav electro-hydraulic grab integrates plaub lub ntsiab technical modules: lub load- bearing structural system, hydraulic zog system, hluav taws xob tswj system, thiab lubrication/maintenance system, nrog rau cov subsystems ua hauj lwm nyob rau hauv kev sib koom tes. Kev nkag siab zoo txog lub luag haujlwm ua haujlwm, cov yam ntxwv ntawm kev thauj khoom, thiab cov qauv tsis ua haujlwm ntawm txhua yam yog qhov tseem ceeb tsis yog rau kev xaiv cov khoom siv thiab kev ua haujlwm nkaus xwb tab sis kuj tseem yog lub hauv paus rau kev tsim lub suab tshuaj xyuas lub sijhawm thiab kev tiv thaiv kev tiv thaiv. Kab lus no nthuav tawm cov txheej txheem, hierarchical tsom xam ntawm cov ntsiab lus tseem ceeb, siv cov qauv rub raws li tus qauv.
Tus Txheej Txheem Txheej Txheem (Sab saum toj-Kawm)
Upper Layer (Ncua tseg teb thiab txuas): Upper crossbeam, anti-detachment device, ntsaws- hauv connector, lubrication point K
Nruab nrab Txheej (Hwj chim thiab Tswj): Hydraulic chav tsev, nqa lub tog raj kheej, vaj tse, ntws deflector, lubrication point
Cov txheej txheem qis (Actuation and Load-Bearing): Lower crossbeam, grab shells (xws li di ncauj), flow deflector (extension section), lubrication point G thiab H
Cov Qauv Txheej Txheem thiab Load-Bearing System
Lub Plhaub
Lub plhaub ntawm lubelectro{0}}hydraulic tuav thoobua lub luag haujlwm tseem ceeb hauv kev thauj khoom -cov kabmob rau tag nrho lub nra. Nws feem ntau yog tsim los ntawm siab- zog, qis- alloy, hnav- cov hlau tsis muaj zog (xws li qib NM400 lossis Hardox 450) siv CNC txiav thiab vuam txheej txheem. Cov qauv thoob khib nyiab feem ntau siv cov thawv sib xyaw ua ke- ntu kab teeb thiab daim hlau nkhaus, ntsuas qhov xav tau ntawm kev xav tau ntawm flexural thiab torsional rigidity nrog qhov hnyav optimization.
Lub plhaub ua peb lub luag haujlwm tseem ceeb:
Load Bearing: Nws sib npaug faib lub lifting quab yuam (hloov los ntawm lub sab sauv crossbeam) thiab cov tshuaj tiv thaiv rog generated thaum rub mus rau ob lub thoob plhaub;
Mounting Base: Nws muab qhov chaw ruaj ntseg mounting thiab kev tiv thaiv kev tiv thaiv rau cov khoom siv zoo xws li chav hydraulic, lub tog raj kheej, thiab cov khoom sib dhos valve;
Hnav Resistance: Cov cheeb tsam ntawm lub plhaub uas tuaj rau hauv kev sib cuag ncaj qha nrog cov khoom yog feem ntau ntxiv nrog cov welded hnav- txheej tiv taus lossis haum nrog cov hnav khaub ncaws hloov tau.
Cov kab nrib pleb los yog kev hloov pauv mus tas li hauv lub plhaub tuaj yeem ua rau lub tog raj kheej misalignment, pin qaug dab peg, lossis txawm tias qhov tawg ntawm cov kab hydraulic. Yog li ntawd, lub plhaub welds-tshwj xeeb tshaj yog cov ntsiab lus sib txuas ntawm lub hlaws thiab lub plhaub- yuav tsum raug xaiv los ua qhov chaw soj ntsuam tseem ceeb thaum kuaj cov khoom siv.
Lub Upper Traverse
Nyob rau saum toj ntawm lubhluav taws xob -hydraulic grab, lub sab sauv traverse ua tus thawj load -cov kabmob kev twb kev txuas taw tes rau lub crane nuv los yog hlau hlua sling. Nws feem ntau yog tsim los ntawm forged steel tivthaiv los yog lub thawv welded girder ua los ntawm tuab phaj; nws nta lub hauv paus ntsiab lus nqa nqa thiab tiv thaiv - kev sib hloov pob khawm ntawm ob sab.
Tus qauv tsim ntawm sab sauv traverse tsom rau kev sib npaug ntawm cov khoom sib npaug - hloov lub crane ib zaug - taw tes nqa lub zog rau hauv symmetrical tensile rog ua rau ob sab ntawm lub plhaub rub. Qhov no tiv thaiv eccentric loading uas yuav ua rau lub lob qaij los yog lub plhaub kaw imperfectly. Tsis tas li ntawd, lub sab sauv traverse feem ntau ua hauj lwm raws li lub mounting platform rau kev sib hloov mechanism (xws li ib tug slewing reducer tsav los ntawm ib tug hydraulic lub cev muaj zog), ua kom lub lob tig nyob rau hauv qhov chaw kom meej kev sib raug zoo nrog cov khoom piles los yog tawm cov ntsiab lus.
Lower Traverse
Lub tshuab hluav taws xob hydraulic rub lub thoob qis traverse yog nyob rau hauv qab ntawm lub grab thiab ua hauj lwm raws li qhov ruaj pivot point txuas rau sab laug thiab txoj cai thoob plhaub (puab tsaig). Nws feem ntau ua haujlwm puv -ntev tus pin tsim; qhov kawg yog nruj ruaj ruaj rau lub tsev ntawm cov kabmob thaiv, thaum lub hauv paus seem ua raws li phau ntawv xov xwm pob khawm nyob ib ncig ntawm lub thoob lub plhaub tig.
Lub traverse qis yog raug rau qhov tshwj xeeb loading tej yam kev mob: thaum lub sij hawm grabbing txheej txheem, lubrub thoobshells tsim lub sijhawm qhib loj heev nyob ib ncig ntawm qhov kev sib tw, ua rau nws ib txhij rau khoov kev nyuaj siab, shear stress, thiab tiv tauj compressive kev nyuaj siab ntawm tus pin nto.
Yog li ntawd, cov khoom feem ntau yog tsim los ntawm alloy structural steel (xws li 42CrMo) raug quenching thiab tempering raws li zoo raws li deg hardening, nrog rau cov tshooj ntawv xov xwm yuav tsum tau ib tug hardness tshaj HRC 55. Tus kheej -lubricating tooj liab alloy bushings feem ntau haum, los yog lubrication ntawm lubrication coefficient. loads.
Plate
Cov ntawv nchuav yog ntsia rau ntawm sab hauv ntawm lub tsev lossis raws cov npoo sab hauv ntawm lub electro-hydraulic grab plhaub; lawv geometry yog contoured raws li cov khoom lub kaum sab xis ntawm repose thiab ntws yam ntxwv.
Lawv lub luag haujlwm tseem ceeb suav nrog:
Kev taw qhia cov khoom ntim khoom: xyuas kom cov khoom ntim cov hluav taws xob -hydraulic rub kab noj hniav sib npaug thaum lub sijhawm kaw kom tsis txhob muaj qhov sib npaug;
Txo cov khoom khaws cia thaum tso tawm: Ua kom yooj yim zawv zawg ntawm cov khoom tawm ntawm qhovntestxo qhov adhesion thiab tsub zuj zuj;
Kev tiv thaiv lub hauv paus qauv: Ua hauj lwm raws li cov khoom siv fij tseg, cov ntawv nchuav tuaj yeem tiv thaiv kev cuam tshuam ncaj qha, muab tus nqi hloov pauv qis dua li ntawm tag nrho cov vaj tsev.
Hauv kev siv cov tswv yim, cov ntawv nchuav feem ntau siv bimetallic composite casting (sib txuas siab -chromium cam khwb cia hlau nrog qis- carbon steel backing) los yog ceramic hauv ob sab phlu thev naus laus zis los tiv thaiv lub sij hawm ntev ntawm cov khoom siv abrasive (xws li hlau ore thiab coke).
Hydraulic Fais Fab thiab Actuation Systems
(Hydraulic Unit)
Hydraulic unit ntawm lub tshuabhluav taws xob hydraulic grabua hauj lwm raws li lub hwj chim qhov chaw thiab core rau lub hwj chim hloov dua siab tshiab; nws yog feem ntau nyob rau hauv ib tug compartment nyob rau hauv lub casing raws li ib tug integrated modular los ua ke. Ib chav ua tiav hydraulic muaj xws li cov hauv qab no cov tub ntxhais sub-cov khoom xyaw:
| Cheebtsam | Kev piav qhia |
|---|---|
| Hluav taws xob lub cev muaj zog | Nws txuas mus rau sab nraud AC (380V / 440V) lossis DC fais fab mov los tsav lub twj tso kua mis hydraulic, ua haujlwm raws li qhov rub lub zog hluav taws xob nkag. |
| Hydraulic twj tso kua mis | Feem ntau cov twj tso kua mis los yog lub twj tso kua mis piston, lawv hloov lub zog hluav taws xob rau hauv lub zog hydraulic, nrog rau kev ua haujlwm siab feem ntau yog li ntawm 20 txog 35 MPa. |
| Hydraulic roj tank | Khaws cov kua dej hydraulic thaum tseem ua hauj lwm kom dissipate tshav kub, cia impurities nyob rau hauv, thiab cais cov pa npuas. |
| Tswj valve los ua ke | Integrate ib tug directional tswj valve, nyem valve, kos valve, thiab throttle valve los tswj lub extension thiab retraction kev taw qhia thiab ceev ntawm hydraulic lub tog raj kheej, raws li zoo raws li lub siab tshaj plaws system siab. |
| Lim | Kev teeb tsa dual -kev teeb tsa uas muaj ob qho tib si rov qab los- kab thiab suction- kab pom ua kom cov kua dej huv ntawm NAS Class 9 lossis zoo dua. |
Lub peev xwm ntawm cov cua kub dissipation ntawm ib chav tsev hydraulic yog qhov qhia tseem ceeb ntawm nws qhov kev ua haujlwm tsis tu ncua. Nyob rau hauv siab -frequency gripping tej yam kev mob, lub kaw lus generates tseem ceeb kub; Yog hais tias qhov kub nce siab tshaj qhov tso cai txwv (feem ntau Tsawg dua los yog sib npaug li 80 degree), qhov ua rau poob ntawm cov kua dej hydraulic ua rau muaj kev nkag mus rau sab hauv thiab ua kom muaj kev laus sai. Yog li ntawd, hydraulic units rau siab -kawg hluav taws xob hydraulic grabs yog nruab nrog cua-txias los yog dej- txias cua sov exchangers thiab, qhov tsim nyog, kub hloov mus ua rau tsis siv neeg tswb nyob rau hauv cov kev tshwm sim ntawm overheating.
Lifting Lub tog raj kheej
Lub lifting lub tog raj kheej yog ib qho actuator uas hloov hydraulic zog rau hauv linear reciprocating mechanical zog; nws feem ntau nta ob - ua yeeb yam, ib zaug -piston- qws tsim. Txhuarub thoobfeem ntau yog nruab nrog ob lub tog raj kheej (los yog ntau lub tog raj kheej, nyob ntawm lub thoob muaj peev xwm) teem symmetrically ntawm ob sab ntawm lub tsev kom muaj kev sib npaug ntawm lub zog kaw.
Cov txheej txheem tseem ceeb ntawm lub tog raj kheej muaj xws li:
Nto thiab pas nrig diameters: Cov no txiav txim siab qhov tso zis thrust thiab rub quab yuam; Cov qauv tsim tshwj xeeb yuav tsum ua kom haum rau cov khoom siv ntom ntom thiab tuav tsis kam.
Ua haujlwm stroke: Qhov no txiav txim siab qhov qhib siab tshaj plaws ntawm lub tshuab hluav taws xob hydraulic rub thoob lub plhaub thiab yuav tsum ua raws li cov khoom siv particle loj faib.
Rated siab: Qhov no sib raug rau lub twj tso kua mis hydraulic tso zis siab, feem ntau yog li ntawm 25 txog 31.5 MPa.
Qhov kaw (grasping) kev txiav txim yog ua tiav los ntawm kev ncua lub tog raj kheej -thaum lub piston pas nrig yog raug rau compressive stability loads -thaum lub qhib (tso tawm) kev txiav txim yog ua los ntawm retracting lub tog raj kheej. Tshwj xeeb tshaj yog, lub piston pas nrig nto undergoes nyuaj chrome plating thiab sib tsoo (nrog ib txheej thickness ntawm ntau tshaj los yog sib npaug zos rau 20 μm) tiv taus abrasive hnav los ntawm nyob rau hauv - cov plua plav thiab cov khib nyiab. Spherical plain bearings yog ntsia rau ntawm qhov kawg ntawm lub tog raj kheej kom haum rau qhov tsis sib haum xeeb thaum lub sijhawmnteskev ua haujlwm.
Kev taw qhia, kev sib txuas, thiab Pab Koom Tes
Daim di ncauj
Daim di ncauj yog txuas mus rau qhov txiav ntug ntawm txhua lub plhaub plhaub; nws yog ib qho tseem ceeb tivthaiv uas ua ntej hu rau cov ntaub ntawv pawg thaum lub sij hawm grabbing txheej txheem, ua qhov txiav thiab nkag mus. Tus tsim ntawm daim di ncauj ncaj qha txiav txim siab hluav taws xob hydraulic clamshell grab lub peev xwm nkag mus thiab sau qhov tseem ceeb.
Daim di ncauj feem ntau yog tsim los ntawm kev hnav zoo heev-cov hlau cam khwb cia los yog muaj zog-fab overlay. Lawv cov ntoo khaub lig-sectional profiles tau ua kom zoo raws li cov yam ntxwv ntawm cov khoom siv: lub ntsej muag ntse yog siv rau cov ntaub ntawv lumpy (xws li ore) kom txo tau qhov kev nkag mus, thaum lub npoo npoo npoo yog ua haujlwm rau cov hmoov av lossis cov khoom sib txuas (xws li av nplaum los yog thee slurry) los tiv thaiv ntug chipping.
Lub di ncauj yog ruaj rau lub plhaub lub cev tseem ceeb ntawm bolting lossis vuam thiab tuaj yeem hloov nws tus kheej; nws yog qhov hnav uas yuav tsum tau hloov ntau zaus tshaj qhov rub lub neej ua haujlwm.
Anti-Detachment Device (Tension Relief)
Cov khoom tiv thaiv -detachment ntawm lub thoob lub thoob yog ib qho tseem ceeb ntawm covrub thoob's kev tiv thaiv kev nyab xeeb; nws daim ntawv tshwj xeeb txawv nyob ntawm qhov chaw:
Ntawm cov ntsiab lus raug ncua kev sib txuas: Nws siv daim ntawv ntawm kev ruaj ntseg latch lossis txoj hlua khi kev ruaj ntseg thib ob los tiv thaiv qhov rub los ntawm kev poob vim kev sib tsoo sib tsoo;
Ntawm hydraulic kab kev sib txuas: Nws muaj los tiv thaiv- nplawm chains lossis kev ruaj ntseg hlau loops rau siab - siab hoses los tiv thaiv kev raug mob los ntawm ya fittings thaum muaj ib tug hose tawg;
Ntawm cov pob qij txha tseem ceeb: Nws siv cov tshuab ntxhua khaub ncaws, cotter pins, lossis ob npaug -cov txiv ntoo xauv cov kev npaj los tiv thaiv xov xoob los ntawm kev thauj khoom cyclic.
Txawm hais tias cov cuab yeej no tsis koom ncaj qha rau hauv kev rub tawm, nws txoj kev ntseeg siab yog qhov tseem ceeb rau ob qho tib si khoom siv thiab cov neeg ua haujlwm kev nyab xeeb; yog li ntawd, nws yuav tsum muab tso rau hauv qhov yuav tsum tau ua ua ntej - pib tshuaj xyuas daim ntawv teev npe.
Kev nyab xeeb thiab tswj cov khoom siv
Tension Release Device
Lub nro tso tawm cov cuab yeej ua haujlwm raws li txoj kab kawg ntawm kev tiv thaiv rau hluav taws xob hydraulic grab overload tiv thaiv; nws yog qhov tseem ceeb ntawm hydraulic cushioning lossis mechanical limiting mechanism. Thaum lub sijhawm ua haujlwm rub tawm, yog tias lubntesplhaub taum tsoo loj, cov khoom tawv hauv cov khoom siv (xws li cov pob zeb khov, pob zeb, lossis cov khoom hlau txawv teb chaws), qhov kev tiv thaiv kom rub tau nce siab thiab sai sai, ua rau lub zog siab nce siab saum lub pob nyem qhov teeb tsa.
Hauv qhov xwm txheej zoo li no, lub zog tso tawm cov cuab yeej ua haujlwm ntawm cov hauv qab no:
Hydraulic txoj kev: Ib qho kev sib koom ua ke cushioning accumulator lossis kev nyab xeeb valve sib dhos qhib instantaneously rau qhov siab siab siab rau hauv lub tank hydraulic, yog li absorbing lub zog cuam tshuam;
Mechanical txoj kev: Yog hais tias siv ib tug neeg kho tshuab nro tso tawm system, compression springs los yog roj hmab buffers yog incorporated rau hauv lub ncua kev kawm ntawv system kom nqus instantaneous overload tawm los ntawm elastic deformation.
Cov cuab yeej no zoo tiv thaiv kev puas tsuaj loj xws li khoov ntawm lub tog raj kheej piston pas nrig, shearing ntawm vaj tse pins, thiab tawg ntawm hydraulic kab. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias cov cuab yeej tso tawm nruj yog qhov kev nyab xeeb - cov khoom tseem ceeb; nws yuav tsum tau muab tso rau hauv kev sim ua haujlwm raws sij hawm (xws li simulating cov lus teb nyob rau hauv cov xwm txheej overload) kom ntseeg tau tias nws tseem nyob hauv qhov kev ntseeg siab, npaj tau - rau - ua haujlwm hauv xeev.
