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    • 1. 发明申请
    • FAST ACTING COMPRESSIBLE STOP
    • 快速行动可以停止
    • WO2016201270A1
    • 2016-12-15
    • PCT/US2016/036951
    • 2016-06-10
    • MANITOWOC CRANE COMPANIES, LLC
    • VOSSEN, Steven, AnthonyBORLEE, Jonathan, MichaelZICK, Joel, DavidALBINGER, Timothy, James
    • B66C23/92F16F9/06
    • B66C23/92F16F9/065F16F9/067F16F2230/24
    • A compressible stop (100) for use in a crane (10) is disclosed. The compressible stop has a housing (102), a rod (112) slidably mounted within the housing, a floating piston (124), and a valve assembly (132). The floating piston divides the housing into a gas portion (126) biasing the floating piston towards an end of the housing and a liquid portion (128) containing a hydraulic fluid. The valve assembly (132) divides the liquid portion into a support portion (136) and a reserve portion (134). The valve assembly (132) includes a check valve allowing a liquid to flow from the reserve portion into the support portion, a pressure sensitive valve inhibiting the liquid from flowing from the support portion into the reserve portion unless the pressure is above a threshold pressure, and a frangible divider (138) configured to rupture when the liquid pressure exceeds a rupture pressure.
    • 公开了一种用于起重机(10)的可压缩止动件(100)。 可压缩止动件具有壳体(102),可滑动地安装在壳体内的杆(112),浮动活塞(124)和阀组件(132)。 浮动活塞将壳体分成将浮动活塞朝向壳体的端部偏压的气体部分(126)和包含液压流体的液体部分(128)。 阀组件(132)将液体部分分成支撑部分(136)和储备部分(134)。 阀组件(132)包括允许液体从储备部分流入支撑部分的止回阀,压力敏感阀阻止液体从支撑部分流入储备部分,除非压力高于阈值压力, 以及构造成当液体压力超过破裂压力时破裂的易碎分隔器(138)。
    • 2. 发明申请
    • HEAVY LIFT CRANE
    • WO2022002963A1
    • 2022-01-06
    • PCT/EP2021/067889
    • 2021-06-29
    • ITREC B.V.
    • WIJNING, Diederick, BernardusROMEIJN, EricROODENBURG, Joop
    • B63B27/10B63B39/02B66C23/52B66C23/90B66C23/92B66C23/905
    • The present invention relates to a crane for use on an offshore vessel. According to the invention, the crane is provided with a boom restrainer, wherein the boom restrainer is a hydro-pneumatic boom restrainer (108), for reducing upward pivoting of the boom (105), when the boom is in the top zone, wherein the boom restrainer (108) comprises: multiple hydraulic cylinders (127), each having a hydraulic circuit and a cylinder rod (119) with a cylinder head (128), wherein the cylinders (127) are mounted on the crane structure (104) with the cylinder heads (120) directed towards the boom (105) of the crane (101), preferably are mounted on a stay (105) of the crane structure (104), a catcher (121) for each hydraulic cylinder (127), wherein each catcher is mounted on the boom (105) and is configured for receiving the cylinder head (120) of the corresponding hydraulic cylinder (127), and to lock the cylinder head, preferably pivotable locks the cylinder head, relative to the boom, when the boom pivots upwards in the top zone; a gas buffer (128) for each hydraulic cylinder (127), wherein each gas buffer (128) is mounted to the corresponding hydraulic cylinder (127), and is connected to the hydraulic circuit of the corresponding hydraulic cylinder via a medium separator, wherein the gas buffer (128) forces the hydraulic cylinder in an extended position, and wherein the volume ratio between the hydraulic cylinder (127) and the gas buffer (128) is such that the hydraulic cylinder (127) acts as a progressive spring, e.g. the gas buffers each hasve a size in the range of 1000-1400 litre, for example 1200 litre and the hydraulic cylinders (127) each have a size in the range of 800-1000 litre, for example 900 litre, and preferably the ratio between the volume of the gas buffer and the volume of the associated hydraulic cylinder is 4:3.
    • 9. 发明申请
    • クレーン用バックストップ
    • 起重机的逆止器
    • WO2017150022A1
    • 2017-09-08
    • PCT/JP2017/002753
    • 2017-01-26
    • コベルコ建機株式会社
    • 小泉 幸雄松尾 洋平
    • B66C23/92B66C13/00
    • 異音発生によるオペレータの不快感及び周辺環境への悪影響を解消するとともに、給脂作業の容易化を図り得るクレーン用バックストップが提供される。バックストップ40は、基端部がブーム又はクレーン本体に回動可能に結合され、先端が開口した開口部44を有する外筒41と、基端部がクレーン本体又はブームに回動可能に結合され、先端部側が開口部44から外筒41内に摺動可能に嵌め込まれている内筒42と、外筒41内又は内筒42内に配置されている給脂管51とを有する。給脂管51の注入口56は、当該給脂管51が配置されている外筒41の基端部側又は内筒42の基端部側において当該外筒41外又は当該内筒42外に配置されている。給脂管51の吐出口61は、内筒42の先端部に取り付けられている。
    • 起重机的止回器,可以消除操作员因不正常的噪音和对周围环境的不利影响而引起的不适,并且可以促进润滑工作。 止回器40包括:外筒41,其具有可枢转地联接到起重臂本体或起重机本体的近端部分;以及远端打开的开口44;可枢转地联接到起重机本体或悬臂的近端部分 内筒42的前端部侧从开口部44滑动自如地嵌合在外筒41内,并且配置在外筒41或内筒42内的供给管51。 入口Kyuaburakan 51 56外筒41的外部,或在基端部侧的基端侧或在其中润滑管51被布置在外部气缸41的内筒42内筒42的外侧 被安排。 供油管51的排出口61安装在内筒42的前端部。