Hoist apparatus with dual mast structure and compound power transmission
system
    2.
    发明授权
    Hoist apparatus with dual mast structure and compound power transmission system 失效
    具有双桅杆结构和复合动力传动系统的起重机械

    公开(公告)号:US4128229A

    公开(公告)日:1978-12-05

    申请号:US852554

    申请日:1977-11-17

    摘要: A hoist rig for lifting and lowering a pipestring is disclosed. The rig includes first and second vertical mast structures, a traveling block for engaging and transporting the pipestring, and a compound power transmission system for raising and lowering the traveling block and pipestring. The compound power transmission system includes traveling sheaves mounted on the extensible portion of the linear actuators, crown sheaves mounted on the upper ends of the mast structures, and first and second cable systems having end portions secured to the traveling block and having intermediate portions disposed in cooperative reeved engagement with the traveling sheaves and crown sheaves of each mast structure for displacing the traveling block in response to extension or retraction of the linear actuators. In a preferred embodiment, at least one additional linear actuator is secured to each mast structure, the piston element of each actuator being secured to the upper end of the mast structures, and the extendable housing elements being mechanically coupled to one another for a concurrent movement along the mast structures. In this preferred arrangement, at least one additional array of crown sheaves and traveling sheaves is provided and at least one additional independent cable system is cooperatively engaged with the additional array of sheaves to displace the traveling block in response to operation of the linear actuators.

    摘要翻译: 公开了一种用于提升和降低管道的提升机。 钻机包括第一和第二垂直桅杆结构,用于接合和运输管道的行进块,以及用于升降行驶块和分流器的复合动力传递系统。 复合动力传动系统包括安装在线性致动器的可延伸部分上的行进滑轮,安装在桅杆结构的上端的顶部滑轮,以及具有固定到行驶块上的端部的第一和第二缆索系统, 与每个桅杆结构的行进滑轮和冠轮相互配合,以响应于线性致动器的伸缩而移动行驶块。 在优选实施例中,至少一个额外的线性致动器被固定到每个桅杆结构,每个致动器的活塞元件固定到桅杆结构的上端,并且可延伸的壳体元件彼此机械联接以便同时移动 沿桅杆结构。 在该优选布置中,提供了至少一个附加阵列的主滑轮和移动滑轮,并且至少一个附加的独立缆索系统与附加的滑轮阵列协作地接合以响应于线性致动器的操作来移动行驶块。

    Lattice mast crane and lattice mast boom
    9.
    发明授权
    Lattice mast crane and lattice mast boom 有权
    格子桅杆起重机和格子桅杆吊杆

    公开(公告)号:US08177081B2

    公开(公告)日:2012-05-15

    申请号:US12384261

    申请日:2009-04-02

    申请人: Roland Bohnacker

    发明人: Roland Bohnacker

    IPC分类号: B66C23/42

    CPC分类号: B66C23/60 B66C23/64

    摘要: This invention relates to a lattice mast crane with a lattice mast boom to be luffed up in a vertical luffing plane, which comprises a pivot piece, a plurality of lattice pieces releasably connectable with each other, and a head piece. In accordance with the invention, the lattice mast boom includes a first and a second region, wherein in the first region the lattice mast boom includes at least two first strands of interconnected first lattice pieces extending in parallel in longitudinal direction of the boom, which are connected with the pivot piece via a lower cross-beam and with the head piece via an upper cross-beam, and wherein in the second region the lattice mast boom only consists of a second strand of interconnected second lattice pieces.

    摘要翻译: 本发明涉及一种格子式起重机,其具有在垂直变幅平面内被放大的格架式起重臂,其包括枢轴件,可彼此可拆卸地连接的多个格子片和头件。 根据本发明,格架式起重臂包括第一和第二区域,其中在第一区域中,格栅式起重臂包括在悬臂的纵向方向上平行延伸的至少两根相互连接的互连的第一格子片, 通过下横梁与枢轴件连接,并且通过上横梁与头部件连接,并且其中在第二区域中,格架式起重臂仅由互连的第二格构件的第二股构成。

    Lattice mast crane and lattice mast boom
    10.
    发明申请
    Lattice mast crane and lattice mast boom 有权
    格子桅杆起重机和格子桅杆吊杆

    公开(公告)号:US20090261053A1

    公开(公告)日:2009-10-22

    申请号:US12384261

    申请日:2009-04-02

    申请人: ROLAND BOHNACKER

    发明人: ROLAND BOHNACKER

    IPC分类号: B66C23/60

    CPC分类号: B66C23/60 B66C23/64

    摘要: This invention relates to a lattice mast crane with a lattice mast boom to be luffed up in a vertical luffing plane, which comprises a pivot piece, a plurality of lattice pieces releasably connectable with each other, and a head piece. In accordance with the invention, the lattice mast boom includes a first and a second region, wherein in the first region the lattice mast boom includes at least two first strands of interconnected first lattice pieces extending in parallel in longitudinal direction of the boom, which are connected with the pivot piece via a lower cross-beam and with the head piece via an upper cross-beam, and wherein in the second region the lattice mast boom only consists of a second strand of interconnected second lattice pieces.

    摘要翻译: 本发明涉及一种格子式起重机,其具有在垂直变幅平面内被放大的格架式起重臂,其包括枢轴件,可彼此可拆卸地连接的多个格子片和头件。 根据本发明,格架式起重臂包括第一和第二区域,其中在第一区域中,格栅式起重臂包括在悬臂的纵向方向上平行延伸的至少两根相互连接的互连的第一格子片, 通过下横梁与枢轴件连接,并且通过上横梁与头部件连接,并且其中在第二区域中,格架式起重臂仅由互连的第二格构件的第二股构成。