An excavator is provided with: a grab bucket (7) provided with two shovels (8); the lifting device (10) is used for lowering and lifting the grab bucket (7); and a hydraulic drive device (9) provided with at least one actuator cylinder designed to move the shovel (8) between an open position and a closed position and operated by a pressurized fluid supplied along at least one flexible conduit (14), the invention relates to a flexible pipe (10) having at least six reinforcing layers (20) interposed between an inner pipe (18) and an outer pipe (19), and provided with a plurality of intermediate layers (21), each of which is interposed between two adjacent reinforcing layers (20), to ensure a bond between the reinforcing layers (20).

    一种挖掘机,具有:抓斗(7),设置有两个铲子(8);升降装置(10),用于降低和提升抓斗(7);以及液压驱动装置(9),设置有至少一个致动器气缸,该致动器气缸设计成使铲子(8)在打开位置与闭合位置之间移动,并且该致动器气缸由沿着至少一个柔性管道(14)供应的加压流体进行操作,该柔性管道具有介于内管(18)与外管(19)之间的至少六个加强层(20),并且该柔性管道设置有多个中间层(21),这些中间层中的每个中间层均介于两个相邻的加强层(20)之间,以确保加强层(20)之间的接合。


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    Title :

    Grab bucket type excavator


    Additional title:

    抓斗式挖掘机


    Contributors:

    Publication date :

    2024-04-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    E02F Baggern , DREDGING / B66C Krane , CRANES / E02D FOUNDATIONS , Gründungen / F16L PIPES , Rohre



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