Ob Chav Girder Overhead Choj Crane

Qhov zoo ntawm Ob Chav Girder Nyiaj Siv Ua Haujlwm Crane:

✔ Ntau dua Load Capacity- Feem ntau tuav5 tons rau 500+ tons, haum rau kev lag luam hnyav.
✔ Ntev Ntev- Ntau ruaj khov rau kev cob qhia dav (txog35m+).
✔ Loj Hook Height- Ntxiv qhov chaw nruab nrab ntawm girders tso cai rau nqa tob.
✔ Durability & Rigidity- Zoo dua rau nquag, hnyav - siv lub luag haujlwm.
✔ Kev kho kom haum- tuaj yeem koom ua ke pab txhawb nqa, rub, hlau nplaum, lossis tshwj xeeb txuas.

 

Kev txiav txim siab xaiv:

Load Weight & Dimensions- Ob chav girders yog xav tau rau hnyav heev los yog dav loads.

Rhiav Qhov siab- Yog tias qhov chaw ntsug tsuas yog txwv, ib leeg girder yuav zoo dua.

Lub luag hauj lwm Cycle- Ncua hnyav lifting nyiam ob girders.

Kev nthuav dav yav tom ntej- Ob chav girders tso cai rau kev txhim kho muaj peev xwm ntau dua.

 

Sib piv nrog Tib Girder Crane:

Feature	Ob chav Girder	Tib Girder
Muaj peev xwm	5–{1}} tons	1-20 tons
Tshaj	Txog li 35m +	Mus txog 25 m
Hook Height	Siab dua (ntau qhov chaw hauv qab girder)	qis
Nqi	Tus nqi pib siab dua	Kev lag luam ntau dua
Kev tu	Ntau qhov nyuaj	Yooj yim dua
Durability	Hnyav-duty	Lub teeb rau nruab nrab - lub luag haujlwm

 

Lifting peev5 - 50 tons (txog 100+ tons rau hnyav-cov dej num)
Tshaj10-35m (kho tau)
Lifting Qhov siab10-30 m
Chav Ua Haujlwm Ua HaujlwmA6 (Lub Luag Haujlwm hnyav) lossis A7 (Lub Luag Haujlwm hnyav)
Kev khiav hauj lwm ceev -Hoisting: 5-20m / min
                              -Trolley Taug kev: 20 - 45 m / min
                              -Crane Taug Kev: 30 - 60 m / min

Qhov hluav taws xob380V / 50Hz lossis 480V / 60Hz (3-theem)
Qib tiv thaivIP55 (plua plav / dej-resistant)
Cov cuab yeej kev nyab xeebOverload limiter, nres thaum muaj xwm ceev, txwv kev hloov pauv, zam kev sib tsoo.

A ob chav girder overhead choj cranemuaj ob peb yam tseem ceeb uas ua hauj lwm ua ke los ua kom hnyav - lub luag haujlwm nqa thiab kev tuav cov khoom hnyav. Hauv qab no yog cov ncauj lus kom ntxaws txog nws qhov tseem ceeb:

 

1. Choj Girders (Main Beams)

Muaj nuj nqi:Primary load- bearing structure spanning the crane bay.

Nta:

Ob qho tib si girders (box-hom lossis I-beam) rau siab zog thiab rigidity.

Feem ntau ua los ntawm welded steel rau lub peev xwm5–{1}} tons.

Tsim los tiv thaiv kev khoov thiab torsional zog.

2. Xaus Truck (End Carriages)

Muaj nuj nqi:Txhawb nqa tus choj girders thiab pab kom longitudinal txav raws txoj kev khiav.

Cheebtsam:

Log:Hlau los yog forged alloy log uas caij ntawm txoj kev khiav.

Tsav Tsav Tsheb:Fais motors powering zog (variable speed options available).

Buffers/Bumpers:Shock absorbers los tiv thaiv kev puas tsuaj los ntawm kev sib tsoo.

3. Hoist & Trolley los ua ke

Muaj nuj nqi:Lifts, txo qis, thiab txav loads horizontally hla cov girders.

Hom:

Electric Hlau hlua Hoist:Feem ntau rau cov khoom hnyav (piv txwv li,10-500 tons).

Chain Hoist:Siv rau cov khoom sib zog los yog qhov chaw muaj kev phom sij.

Trolley Cheebtsam:

Trolley Ncej:Txhawb nqa lub hoist thiab txav mus rau ntawm txoj kab raws cov girders.

Tsav Mechanism:Lub cev muaj zog thiab lub zog rau kev hla - mus txawv tebchaws.

Hook Block:Txuas rau lub load (tej zaum yuav suav nrog cov rotators lossis cov hooks tshwj xeeb).

4. Khiav System

Muaj nuj nqi:Muab cov kab khiav rau crane txav.

Cheebtsam:

Txoj Kev Rails:Steel rails mounted rau kab los yog freestanding kev txhawb nqa.

Crane Beams:Kev them nyiaj yug cov qauv rau cov ntsia hlau (feem ntau ntxiv rau cov khoom hnyav).

Rail Clamps:Xauv lub crane nyob rau hauv qhov chaw thaum tu.

5. Kev Siv Hluav Taws Xob

Muaj nuj nqi:Lub zog thiab tswj kev ua haujlwm crane.

Cov ntsiab lus tseem ceeb:

Main Power Supply:Festoon system, conductor tuav, los yog cable reels.

Tswj Vaj Huam Sib Luag:Tsev contactors, overload relays, thiab PLCs (yog tias siv tau).

Tus neeg khiav dej num tswj:Pendant chaw nres tsheb, xov tooj cua tej thaj chaw deb, los yog cabin tswj.

Limit Switches:Tiv thaiv kom dhau -kev mus los ntawm lub hoist, trolley, lossis choj.

6. Kev Nyab Xeeb & Cov Khoom Pab Koom Tes

Kev nyab xeeb nta:

Overload txwv:Tiv thaiv kom tsis txhob nqa tshaj qhov muaj peev xwm.

Emergency Stop (E-Stop):Tam sim ntawd txiav fais fab thaum muaj xwm ceev.

Anti-Kev Sib tsoo Systems:Rau ntau cranes nyob rau hauv tib lub bay.

Optional Attachments:

Magnetic Lifters:Rau steel phaj / seem.

C-Hooks lossis Grapples:Rau coils, chim, los yog irregular loads.

Cabin (Operator Chaw nres tsheb):Rau cov cranes nrog kev ua haujlwm nquag lossis nyuaj.

7. Braking Systems

Hom:

Mechanical Brakes:Caij nplooj ntoos hlav- siv, hluav taws xob tso tawm (failsafe design).

Regenerative Braking:Recovers zog nyob rau hauv advanced systems.

Rail Brakes:Rau tuav txoj hauj lwm ntawm inclined runways.

.

8. Festoon lossis Conductor Bar System

Muaj nuj nqi:Muab lub zog rau lub trolley thiab hoist.

Kev xaiv:

Cable Festoon:Yooj yim cables ntawm lub trolley system.

Enclosed Conductor Bars:Sliding hu rau kev ntxuav lub zog xa mus.

9. Lubrication & Maintenance Systems

Tsis Siv Neeg Lubricators:Rau lub log, lub zog, thiab bearings.

Kev soj ntsuam Platforms:Rau kev nyab xeeb nkag mus rau cov khoom tseem ceeb.

Sketch

Main technical

 

 

Ob chav girder nyiaj siv ua haujlwm cranes yog qhov zoo dua rau hnyav- cov ntawv thov kev lag luam vim lawv lub zog zoo dua, ruaj khov, thiab ntau yam. Nov yog lawv cov txiaj ntsig tseem ceeb:

1. Muaj peev xwm thauj khoom ntau dua

Tau tuav5 rau 500+ tons, ua rau lawv zoo tagnrho rau kev lag luam hnyav xws li steel, mining, thiab shipbuilding.

Muaj zog dua ib leeg -girder cranes, nrog rau qhov hnyav dua.

2. Lub peev xwm ntev dua

Haum rau dav bays (txog35 meters los yog ntau tshaj) tsis muaj kev txhawb nqa nruab nrab.

Txo deflection nyob rau hauv hnyav loads, xyuas kom meej load positioning.

3. Ntau dua Hook Qhov siab

Qhov chaw nruab nrab ntawm ob lub girder tso cai rau ibnqa qhov siab dua, maximizing ntsug chaw ua haujlwm.

Muaj txiaj ntsig zoo hauv cov chaw nrog cov qab nthab siab (xws li, cov chaw tsim khoom, cov chaw tsim hluav taws xob).

4. Txhim khu Durability & Rigidity

Twin girders muabzoo dua torsional kuj, txo sway thaum nqa.

Zoo tagnrho rautsis tu ncua, siab - lub luag haujlwm cycles(eg, FEM Class M6-M8).

5. Customization & Flexibility

tuaj yeem koom ua keauxiliary hoists, hlau nplaum, grabs, los yog tshwj xeeb lifting attachments.

Kev xaiv rautawg- pov thawj, siab- kub, lossis siv sab nraum zoov.

6. Smoother & Ntau Yam Ua Haujlwm

Advanced tswj (VFD drives, automation) tso caisib txawv ceev thiab meej load tso.

Kev vibration tsawg dua piv rau ib leeg -girder cranes.

7. Lub neej ua haujlwm ntev dua

Ua nroghnyav- cov khoom siv(welded steel girders, forged log) rau kev ncua ntev.

Kev saib xyuas yooj yim dua vim muaj cov platforms taug kev (ntawm cov qauv loj dua).

 

Cov cranes no yog siv hauv kev lag luam uas xav tauhnyav lifting, siab precision, thiab kev ntseeg tau. Cov ntawv thov uas muaj xws li:

1. Hlau & Hlau Kev Lag Luam

tuavsteel coils, slabs, pwm, thiab molten hlau.

Siv hauvdov mills, foundries, thiab forging nroj tsuag.

2. Fais fab nroj tsuag & Heavy Machinery

Kev nqaturbines, generators, transformers, thiab boilers.

Kev kho ntawmhydroelectric thiab nuclear fais fab chaw nres tsheb.

3. Shipbuilding & Offshore

Tsivnkoj ntu, cav, thiab tshuab hnyav.

Siv hauvqhuav docks thiab sib dhos yards.

4. Automotive & Aerospace

tuavxovxwm pwm, tsheb chassis, thiab cov khoom siv dav hlau.

Kev sib dhos kab thov rauhnyav machinery hloov.

5. Kev lag luam mining & cement

Kev thauj mus losloj crushers, kilns, thiab bulk cov ntaub ntawv.

Siv hauvmineral processing thiab bulk tuav cov nroj tsuag.

6. Warehouse & Logistics

Kev nqahnyav ntim, machinery, thiab oversized loads.

Siv hauvhnyav khoom warehouses thiab freight terminals.

7. Ntawv & Pulp Kev Lag Luam

tuavcov ntawv loj (txog 50+ tonnes).

Siv hauvpaper mills thiab recycling nroj tsuag.

 

Cov txheej txheem tsim khoom rau a45-tuj Ob Chav Girder Nyiaj Siv Ua Haujlwm Cranesuav nrog ntau theem tseem ceeb, txij li kev tsim qauv mus rau qhov kev sim zaum kawg. Hauv qab no yog cov kauj ruam ntxaws ntxaws -los ntawm - kauj ruam qhia:

---

1. Tsim & Engineering

Load & Span xam: Txiav txim siab lub peev xwm crane (45 tons), ncua (nruab nrab ntawm txoj hlua), nqa qhov siab, thiab lub voj voog ua haujlwm (FEM / ISO classification).

Tus Qauv Tsim:

Main girders (lub thawv-hom lossis truss tsim)

Xaus carriages (rau kev txav raws li kev tsheb nqaj hlau)

Hoist thiab trolley mechanism

Hluav taws xob & Mechanical Design:

Lub cev muaj zog, gearbox, nres, thiab tswj qhov system

Hluav taws xob, pendant / xov tooj cua chaw taws teeb tswj, lossis kev ua haujlwm hauv tsev

Software & Simulation: Finite Element Analysis (FEA) rau kev ntsuam xyuas kev ntxhov siab.

---

2. Kev yuav khoom

Steel Phaj & Profiles: High-zoo Q235B/Q345B steel rau girders.

Hluav taws xob Cheebtsam: Cov motors (hoist/travel), brakes, limit switches, and control panels.

Mechanical Parts: Log, iav, hlau hlua, hooks, thiab bearings.

---

3. Fabrication ntawm Main Cheebtsam

A. Ob Chav Girder Fabrication

Txiav & Vuam: CNC plasma txiav rau precision; Tsis siv neeg submerged arc vuam (SAW) rau girders.

Kev sib dhos: Teem thiab weld girders nrog kawg carriages.

Tua Blasting & Painting: Anti-kev kho xeb (primer + topcoat).

B. Hoist & Trolley Assembly

Hoist Mechanism:

45-tuj hluav taws xob hlau hlua hoist (los yog saw hoist).

Nruas, lub cev muaj zog, gearbox, thiab nres sib dhos.

Trolley Ncej: Fabrication and mounting of wheels, motors, and rails.

C. Xaus Tsheb

Kev tsim kho ncej: Welded steel nrog lub log sib dhos.

Buffers & Bumpers: Kev teeb tsa rau kev tiv thaiv kev sib tsoo.

---

4. Kev teeb tsa hluav taws xob

Txuas & Tswj:

Fais fab mov (3-theem AC)

Variable Frequency Drives (VFDs) rau kev ua haujlwm zoo

Pendant / chaw taws teeb tswj qhov system

Cov cuab yeej kev nyab xeeb:

Overload txwv

Limit switches (saum toj / qis mus ncig)

Thaum muaj xwm ceev nres

---

5. Kev sib dhos & kev sib koom ua ke

Erection ntawm Girders: Mount ob chav girders mus rau qhov kawg carriages.

Trolley & Hoist Installation: Txoj hauj lwm trolley ntawm girders; ruaj ntseg hoist.

Rail Alignment: Xyuas kom cov tsheb ciav hlau khiav yog theem thiab sib npaug.

---

6. Kev Ntsuas & Kev Tswj Xyuas Zoo

A. Factory Testing (ua ntej xa khoom)

Tsis muaj -Load Test: Khiav crane yam tsis muaj load los xyuas kev txav, nres, thiab tswj.

Load Test:

Kev Xeem Static: 1.25 × rated load (56.25 tons) rau 10 mins.

Dynamic Test: 1.1 × rated load (49.5 tons) nrog txav.

Kev kuaj xyuas kev nyab xeeb: Txheeb xyuas cov kev txwv txwv, nres thaum muaj xwm ceev, thiab kev tiv thaiv overload.

B. Ntawm -Site Testing (Tom qab kev teeb tsa)

Re-khiav cov kev xeem thauj khoom nyob rau hauv kev saib xyuas cov neeg siv khoom.

---

7. Painting & Corrosion tiv thaiv

Txheej kawg: Huab cua- pleev xim rau (xws li, epoxy zinc-nplua nuj primer).

Cov cim: Daim ntawv lo rau lub peev xwm thauj khoom, ceeb toom, thiab cov ntaub ntawv tsim khoom.

---

8. Ntim & Xa khoom

Disassembly (yog tias xav tau): Rau kev thauj mus los yooj yim.

Ntim: Waterproof wrapping rau hiav txwv / av shipping.

---

9. Kev teeb tsa & Kev Ua Haujlwm (Ntawm -Site)

Runway Beam Inspection: Ua kom muaj kev sib raug zoo thiab muaj zog.

Crane Assembly: Reassemble girders, hoist, thiab hluav taws xob tshuab.

Kev Xeem Kawg: Ua cov kev xeem thauj khoom thiab kev cob qhia neeg ua haujlwm.

Rhiav saib:

Lub tuam txhab tau teeb tsa cov cuab yeej ntse tswj kev tswj hwm lub platform, thiab tau teeb tsa 310 teeb (teev) ntawm kev tuav thiab vuam robots. Tom qab ua tiav ntawm txoj kev npaj, yuav muaj ntau tshaj 500 teeb (sets), thiab cov khoom siv sib txuas sib txuas yuav ncav cuag 95% . 32 cov kab vuam tau muab tso rau hauv kev siv, 50 tau npaj los nruab, thiab automation tus nqi ntawm tag nrho cov khoom kab tau mus txog 85%.