본 발명은, 차량(12) 및, 상기 차량위에 배열되고 상기 차량에 고정된 붐 지지대(14)위에서 암 조립체(24)로서 집어넣어 질 수 있는 다수의 붐 암(22)들을 포함한 콘크리트 분배기 붐(16)을 가지며, 상기 암 조립체(24)를 집어넣거나 펼치기 위해 형성된 붐 유압 시스템을 가지고, 상기 붐 유압 시스템은 집어넣기 운동으로 상기 붐 지지대(14)에 대해 상기 암 조립체(24)를 이동시키는 한 개이상의 유압 실린더(30)를 포함하는 트럭 장착식 콘크리트 펌프에 관한 것이다. 상기 붐의 집어넣기 하중을 제한하기 위해, 상기 유압 실린더(30)에 연결되고 상기 집어넣기 운동을 종료시키는 보호 회로(20)를 포함하고, 상기 보호회로는 상기 암 조립체(24)의 부하를 받으며 작동하는 스위칭 유닛(32)을 포함한다.

    This disclosure relates to a truck-mounted concrete pump including a vehicle, a concrete distributor boom disposed on the vehicle and including multiple boom arms that can be stowed, in the form of an arm assembly, on a vehicle-mounted boom resting unit, and a boom hydraulic system configured to stow and unfold the arm assembly and including a hydraulic cylinder that moves the arm assembly against the boom resting unit in a stowing movement. To terminate the boom stowing movement, a protective circuit is coupled to the hydraulic cylinder. The protective circuit includes a switching unit actuable under the load of the arm assembly. The switching unit has a load receiving element arranged on the boom resting unit that is resiliently deformable when stowing the arm assembly, wherein the arm assembly is only supported on the boom resting unit by the load receiving element.


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    Title :

    TRUCK-MOUNTED CONCRETE PUMP AND PROTECTIVE CIRCUIT THEREFOR


    Additional title:

    트럭 장착식 콘크리트 펌프 및 이를 위한 보호회로


    Contributors:

    Publication date :

    2016-09-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS / B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS / B66C Krane , CRANES / E04G SCAFFOLDING , Baugerüste



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