Dab tsi yog cov cuab yeej kev nyab xeeb tseem ceeb ntawm ob -girder crane?
Txhawm rau kom muaj kev nyab xeeb thiab txhim khu kev lag luam nqa, cranes yuav tsum tau nruab nrog cov cuab yeej muaj kev nyab xeeb los tiv thaiv cov khoom siv lossis ceeb toom cov neeg ua haujlwm thaum muaj xwm txheej ceev, yog li muab kev tiv thaiv kev nyab xeeb.
1. Relief li qub nyob rau hauv hydraulic system: Cov li qub no txwv tsis pub muaj kev kub ntxhov hauv Circuit Court kom tsis txhob muaj kev puas tsuaj rau lub twj tso kua mis hydraulic thiab lub cev muaj zog, thiab tiv thaiv kom tsis txhob overload.
2. Boom luffing kev ruaj ntseg ntaus ntawv: Yog tias muaj qhov tshwm sim tsis txaus ntseeg tshwm sim, xws li tawg lossis tawg siab - lub siab hose lossis tubing hauv lub boom luffing lub tog raj kheej Circuit Court, qhov ntsuas valve hauv hydraulic Circuit Court qhib, thaiv cov roj hydraulic ntws los ntawm lub tog raj kheej qis chamber, tiv thaiv kev ua haujlwm tsis zoo.
3. Boom extension thiab retraction kev ruaj ntseg ntaus ntawv: Yog hais tias muaj ib qho kev npaj txhij txog tshwm sim, xws li ib tug rupture los yog hnyav heev - siab hose los yog tubing nyob rau hauv lub boom extension thiab retraction lub tog raj kheej Circuit Court, lub ntsuas valve nyob rau hauv lub hydraulic Circuit Court activates, thaiv cov ntws ntawm hydraulic roj los ntawm lub tog raj kheej lub sab chamber.
4. Height Limit Device: Thaum tus nuv mus txog qhov siab, nws hu rau qhov txwv qhov hnyav, ua rau kev mus ncig. Qhov taw qhia "dhau-cua" teeb pom kev, ib txhij kaw kev ua haujlwm xws li kev sib txuas sib txuas, boom txuas ntxiv, thiab boom txo qis, ua kom muaj kev nyab xeeb.
5. Outrigger Locking Device: Thaum muaj xwm txheej xws li kev sib tsoo lossis txiav hauv qhov siab - lub siab hose lossis roj yeeb nkab uas ua rau lub tog raj kheej ntsug, lub tog raj kheej kheej kheej hydraulic kaw nyob rau hauv hydraulic system thaiv cov roj pressurized nyob rau hauv ob qho tib si chamber ntawm lub outrigger locking lub tog raj kheej, tiv thaiv lub outrigger los ntawm kev tiv thaiv kev ruaj ntseg los ntawm kev tiv thaiv lub outrigger. kev ua haujlwm.
