Cov lus qhia dav dav no tshawb txog kev ua haujlwm, kev siv, cov txheej txheem kev nyab xeeb, thiab cov txheej txheem xaiv rau davit cranes. Peb yuav delve rau hauv ntau hom, muaj peev xwm, thiab cov kev coj ua zoo tshaj plaws los xyuas kom muaj kev nyab xeeb thiab ua haujlwm tau zoo. Txawm hais tias koj yuav tsum tau nqa cov khoom hnyav lossis ua haujlwm me me, kev nkag siab davit cranes yog qhov tseem ceeb.
A davit crane yog ib hom lifting ntaus ntawv uas muaj ib tug ntsug ncej los yog mast nrog ib tug projecting caj npab uas pivots nqa thiab txo loads. Cov cranes no feem ntau yog siv rau kev sib zog nqa daim ntawv thov piv rau cov tshuab cranes loj dua. Lawv paub txog lawv cov kev ua tau zoo thiab muaj nyob hauv ntau hom kev lag luam. Davit cranes feem ntau manually ua haujlwm, txawm hais tias qee cov qauv siv hluav taws xob lossis hydraulic tshuab kom muaj peev xwm nqa tau thiab siv tau yooj yim.
Cov no yog hom yooj yim tshaj plaws ntawm davit crane, cia siab rau phau ntawv ua haujlwm rau kev nqa thiab txo cov loads. Lawv feem ntau yooj yim hauv kev tsim thiab pheej yig, ua rau lawv haum rau kev siv lub teeb. Txawm li cas los xij, kev siv phau ntawv tuaj yeem ua rau lub cev xav tau thiab txwv qhov hnyav ntawm cov khoom uas tuaj yeem nqa tau nyab xeeb.
Hluav taws xob davit cranes siv lub tshuab hluav taws xob rau kev nqa, txhim kho kev ua haujlwm thiab txo lub cev hnyav. Lawv tuaj yeem ua haujlwm hnyav dua li cov qauv siv phau ntawv thiab feem ntau nruab nrog cov yam ntxwv xws li kev tswj ceev ceev thiab kev tiv thaiv overload. Qhov no ua rau lawv zoo tagnrho rau cov ntawv thov uas xav tau ntau dua thiab muaj peev xwm nqa tau ntau dua.
Hydraulic davit cranes ntiav hydraulic cylinders los nqa thiab txo cov loads. Lawv muab kev tswj kom du thiab meej, thiab feem ntau tuaj yeem ua tiav qhov kev txhawb nqa ntau dua li cov qauv hluav taws xob. Hydraulic systems feem ntau muaj zog dua, tshwj xeeb tshaj yog muaj txiaj ntsig zoo hauv qhov chaw hnyav.
Xaiv qhov tsim nyog davit crane rau koj cov kev xav tau tshwj xeeb suav nrog kev txiav txim siab ntau yam:
Kev nyab xeeb yuav tsum yog qhov tseem ceeb tshaj plaws thaum siv a davit crane. Kev tshuaj xyuas tsis tu ncua, kev cob qhia kom raug rau cov neeg ua haujlwm, thiab ua raws li cov cai tswj kev nyab xeeb yog qhov tseem ceeb. Nco ntsoov xyuas kom lub crane raug sib dhos kom raug thiab tag nrho cov txheej txheem kev nyab xeeb ua haujlwm zoo. Tsis txhob tshaj lub crane qhov ntsuas lifting peev. Nrog OSHA cov lus qhia rau kev ruaj ntseg cov cai.
Davit cranes nrhiav kev siv dav hauv ntau yam, suav nrog:
| Feature | Phau ntawv | Hluav taws xob | Hydraulic |
|---|---|---|---|
| Lifting peev | Tsawg | Nruab nrab mus rau siab | Siab |
| Yooj yim siv | Tsawg | Nruab nrab | Siab |
| Nqi | Tsawg | Nruab nrab | Siab |
Rau ib tug dav xaiv ntawm high-zoo davit cranes thiab lwm yam khoom nqa nqa, mus saib Suizhou Haicang Tsheb Muag Khoom Co., Ltd.