Mobile crane boom: hauj lwm, yam ntxwv thiab hom

Rau mechanization ntawm chaw thau khoom thiab unloading, tus me nyuam lug thiab cov ntaub ntawv on siv qhov chaw, raws li zoo raws li kom muaj lub ntsiab nyob rau ntawm lawv fastening siv jib crane - hoisting conveying tshuab, uas lifting pab kiag li lawm tas mus rau thaum xaus ntawm lub tsheb nqaj los yog tshem tawm los ntawm lub trolley yog tsiv raws boom.

Classification jib cranes

Jib cranes raug muab faib ua ob peb hom nyob rau hauv daim ntawv thov thiab tsim nta. Nws txiav txim siab los faib rau hom ntawm cov khoom:

1. Crane boom propelled, uas nws xub yog tsau rau ib tug movable platform thiab cov navigation ntaus ntawv.
2. Portal yog ntsia tau rau hauv lub Gantry qauv, tsim los rau cov zaj uas lub thauj.
3. Pej thuam, uas muaj ib tug xub txuas mus rau ib tug ntsug ua liaj ua teb, pej thuam.
4. Nkoj mounted rau floating hlab ntsha rau nraum chaw thau khoom thiab unloading.
5. Mast los yog derrick-crane muaj ib ntsug mast uas yog movably txuas xub.
6. Mounting lub boom yog mounted ncaj qha rau txoj hauj lwm qhov chaw, nyob ruaj ruaj, uas tsis yog-rotating.

Txhua lom ntawm lub boom crane yog muab rau qhov Performance index, nyob rau hauv uas encrypted tseem ceeb tsim nta thiab specifications.

mobile crane

Ntawm tag nrho pab pawg ntawm cov lifting machines feem ntau yog mobile cranes, jib, uas yog nruab nrog sib txawv propulsion nyob ntawm kev khiav hauj lwm tej yam kev mob thiab kev pab raws qib. Dav nthuav rau ntawm no pab pawg neeg tshwj xeeb cov khoom tau muab:

• self-propelled;
• muaj thiab maneuverability;
• muaj peev xwm yuav tsum tau tsiv ua ke nrog lub load;
• siab load peev xwm;
• lub peev xwm los sai sai thauj mus rau lwm lub chaw;
• Versatility - Muaj peev xwm mus teem sib txawv interchangeable khoom.

Mobile cranes yog replaceable boom uas tso cai rau koj yuav hloov lub ciaj ciam ntawm cov khoom thiab siv nws los tau ntau yam kev pab raws qib. Mobile crane boom hom lug siv nyob rau hauv kev tsim kho ntawm cov txuas hniav thiab cov chaw ntawm lub hwj chim ua lag luam, raws li tau zoo raws li rau lub chaw thau khoom ntawm heavy tsheb ua ntej thauj.

Classification jib cranes

Lub ntsiab tsis, raws li uas tus jib cranes raug muab faib mus rau hauv chav kawm ntawv, yog load, hom ntawm kev ncua, tsav tsim thiab kev nta.

Raws li lub hom tshwj xeeb cov khoom chassis yog muab faib ua ob peb hom:

1. Tsheb - lifting khoom ntsia rau lub tsheb.
2. Rail mounted rau ib tug platform mus rau kev tsheb ciav hlau lem.
3. Crawler crane boom tsiv crawler Mover.
4. Pneumatic-pneumatic log yog txawm peem rau nrog nws tus kheej chassis, tswj los ntawm lub tsheb tav xis.
5. Rail - tib yam li lub railway crane, tab sis nws tus kheej mus raws txoj kab.

Ib txhia builders faib tsheb laij teb yam nyob qhov twg cov boom nrog lifting khoom ua raws li ib tug coupler. Cov txheej txheem no yog siv los mus ua hauj lwm kev cob cog rua nrog lub zog ntawm cov khoom nyob rau hauv lub off-txoj kev mob.

Drive jib cranes

Lub ntsiab kev khiav hauj lwm lub caij yog ib tug tsav, uas yog lub luag hauj lwm rau lub zog ntawm cov khoom. Cov feem ntau lug siv crane boom nrog ib tug txhua yam tsav yam. Nws tag nrho cov ntshav yog tsav los ntawm ib tug nrog combustion engine nrog diesel roj los yog roj av. Cranes nrog hluav taws xob tsav yog lug siv nyob rau hauv nroog siv qhov chaw, uas yog kev cob cog rua rau hluav taws xob kab. Rau autonomous installation ua hauj lwm yuav tsum tau ib tug diesel generator. Nyob rau hauv no hais txog, sab nraum lub nroog tsheb npav los ua nrov nrog ib tug hydraulic tsav, qhov twg txhua lub zog ntawm lub tshuab yog txawm peem rau nrog nws tus kheej hydraulic lub cev muaj zog.

Nyob rau hauv cov ntaub ntawv no, li qub raug muab faib ua ib leeg-cav, qhov twg tag nrho cov ua hauj lwm rau lwm cov uas tau tsav los ntawm fais fab nroj tsuag, kev khiav hauj lwm nyob rau hauv ib tug ncej thiab multi-engine, qhov twg txhua lub zog twg thiaj li raug mus nyob rau nws tus kheej cais lub cev muaj zog.

boom siv

Nyob rau hauv lub tsim ntawm tus dais, jib cranes yog ob hom - telescopic thiab lattice. Tus thawj hom boom yog ib tug hollow box hauv uas yog nyob rau ib los yog ntau zawv zawg kab teeb. Yog hais tias tsim nyog hloov nyob rau hauv ntev ntawm lub boom thooj voos kheej kheej thawb lub telescopic ntsiab. Tej khoom no feem ntau ntsia rau qhov crane nrog hydraulic tsav. Ntxaij ntoo boom tseem muab faib ua plaub pawg:

• rectilinear, feem ntau yog tsim rau ib tug ntau ntawm cov ntaub ntawv sau npe;
• tau nkhaus khoov, nyob rau hauv uas lub cheeb tsam yog teem hoist. Cov xib xub yuav siv los txav loj loads;
• stackable peev xwm ua rau nws kav ntev npaum txhim kho ntxiv seem;
• articulating - sub, muaj raws ntawm ib tug inclined feem thiab kev cob cog rua thereto los ntawm ib tug gooseneck khawm, uas ho tsub kom lub boom.

Txhua yam ntawm boom cov khoom yog txawm peem rau nrog ib tug saj zawg zog los yog txhav ncua kev kawm ntawv. Nyob rau hauv thawj cov ntaub ntawv, jib crane lawd cargo hlua pulley thaiv system thiab, nyob rau hauv lub thib ob - hydraulic thooj voos kheej kheej.

Lifting peev xwm jib cranes

Lub ntsiab kom muaj nuj nqis characterizing lub valve yog nws muaj peev xwm - lub siab tshaj plaws luj ntawm lub load, uas yog nqa tau lub crane.
Raws li qhov no parameter tsheb npav yog:

• teeb - mus txog rau 10 tons;
• nruab nrab - mus txog rau 25 tons;
• mob loj heev - ntau tshaj 25 tons.

Lub luag hauj lwm tus nqi kuj muaj xws li tus luj ntawm cov ua hauj lwm cov khoom - lifting pab kiag li lawm, grabs los yog hlau nplaum. Peev Xwm nyob rau lub ntau yam ntawm cov boom nrog lub stability tiv thaiv tipping machinery, li zoo raws li lub zog ntawm cov kev khiav hauj lwm units.

Cov yam ntxwv luffing cranes

GOST 22827-85 governs lub yooj yim yam ntxwv thiab ntau thiab tsawg, uas tej zaum yuav muaj ib tug self-propelled, jib cranes. Nta - lub ntsiab tsis uas txhais tau lub tau thiab lub hom phiaj ntawm tshwj xeeb cov khoom. Lawv yog:

• siab - nuv ya tipping npoo, boom ntev, txo qhov tob thiab qhov siab lifting Lifting khoom;
• ceev cov yam ntxwv - lifting ceev yog txiav txim, kev sib hloov load, luffing, taw nyob rau hauv ua hauj lwm thiab kev thauj nyob rau hauv ib tug npaj lub xeev;
• nqes hav tsis - lub xam nqes hav uas yog muab rooj noj mas li sai tau hnyav load rau tag nrho cov txaus qhia ntawm lub teb ib feem;
• ntsuas xa lub kaum sab xis - lub kaum sab xis los ntawm kev uas cov tsheb npav yuav tig.

Cov tib yam ntxwv siv los piav cov chaw jib cranes. Yog xav paub ntxiv, thov mus saib rau cov xeev cov qauv.