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公开(公告)号：US10150657B2
公开(公告)日：2018-12-11
申请号：US15447815
申请日：2017-03-02
发明人： Kota Miyoshi
IPC分类号： F16D31/02 , B66C23/86 , B66C13/16 , B66C13/20 , B66C23/00 , F15B11/044 , F15B11/08 , F15B13/043 , B66C23/36
摘要： The crane includes a swing brake device installed between a hydraulic motor and a control valve and having a flow restrictor; a first backpressure detector detecting a motor backpressure between the flow restrictor and one of ports of the hydraulic motor; a second backpressure detector detecting a motor backpressure between the flow restrictor and the other port of the hydraulic motor; and a control device. The control device has an external-force direction estimation unit that estimates a swing direction of an upperstructure under an external force acting on the upperstructure on the basis of a motor backpressure detected by the first backpuressure detector and a motor backpressure detected by the second backpressure during an operating state of the swing brake device. The control device has a notification control unit that causes the notification device to provide notification of the estimated swing direction of the upperstructure.
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公开(公告)号：US10099905B2
公开(公告)日：2018-10-16
申请号：US15164976
申请日：2016-05-26
发明人： Hiroshi Kuninaga , Akira Hanahara
摘要： A crane includes: a boom; a jib; a front post that is swingably attached to a tip end side of the boom; a rear post that is swingably attached to the tip end side of the boom; a post-side pendant member, with one end of the post-side pendant member being attached to a tip end of the rear post; a boom-side pendant member, with one end of the boom-side pendant member being attached to another end of the post-side pendant member, and another end of the boom-side pendant member being attached to the boom; and a post driving device having a link mechanism that rotates the rear post in a range including a position at which the rear post is swung down to the front post side and a position at which the rear post is swung down to the boom side, while the boom is held down in a horizontal position.
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公开(公告)号：US20180273354A1
公开(公告)日：2018-09-27
申请号：US15902796
申请日：2018-04-17
发明人： Kazunori Yamamoto
摘要： A counterweight device installed in a rear end portion of a machine body frame includes amounting table having amounted counterweight, a hydraulic cylinder that raises/lowers the mounting table, a connection structure that connects the mounting table and a cylinder rod of the hydraulic cylinder, a support member that supports the hydraulic cylinder on the mounting table via an oscillating spindle, a first coupling mechanism that couples the connection structure and the rear end portion of the machine body frame to each other at a position where an upper end of the rear end portion is lower than an upper end of the connection structure, a second coupling mechanism that couples the support member and the rear end portion of the machine body frame to each other, a first operation unit that operates the first coupling mechanism, and a second operation unit that operates the second coupling mechanism.
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公开(公告)号：US20140175040A1
公开(公告)日：2014-06-26
申请号：US14101946
申请日：2013-12-10
发明人： Kazunori YAMAMOTO
IPC分类号： B66C23/42
摘要： A lower spreader of a construction machinery has a width smaller than a width of the front leg member; and a plurality of lower sheaves at the lower spreader includes at least; a first lower sheave at which the derricking rope let out from the derricking drum is first wound; a second lower sheave, disposed on a side where a fixed end of the derricking rope at which the derricking rope is fastened is located, at which the derricking rope is wound last; and a third lower sheave, disposed between the first lower sheave and the second lower sheave or at a position adjacent to either the first lower sheave or the second lower sheave, at which the derricking rope, running from an upper sheave among the plurality of upper sheaves at the upper spreader is wound so as to run toward another upper sheave at the upper spreader.
摘要翻译： 工程机械的下部吊具的宽度小于前腿部件的宽度; 下部吊具上的多个下滑轮至少包括; 首先将起重绳索从升降鼓出来的第一个下滑轮缠绕; 第二下滑轮，设置在紧固绳索的起重绳索的固定端的一侧，最后缠绕起重绳索; 以及第三下滑轮，其设置在所述第一下滑轮和所述第二下滑轮之间，或者在与所述第一下滑轮或所述第二下滑轮相邻的位置处，所述第二下滑轮从所述多个上滑轮中的上滑轮延伸， 上部吊具上的滑轮被缠绕，以便在上部吊具上向另一个上滑轮运行。
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公开(公告)号：US20180229981A1
公开(公告)日：2018-08-16
申请号：US15897899
申请日：2018-02-15
发明人： Kazunori Yamamoto
摘要： A counterweight device including a base plate having a mounted counterweight, a hydraulic cylinder that raises/lowers the counterweight mounted on the base plate, a detachable frame connecting the base plate and a cylinder rod of the hydraulic cylinder, a first pin pivotably supporting the detachable frame with respect to the cylinder rod, a guide coupling portion guiding a free end side of the detachable frame to the rear end portion side of a turning frame in response to a stretching/shrinking state of the cylinder rod, and coupled to the turning frame below an upper end of the rear end portion, and a rail (guide member) guiding the free end side of the detachable frame in a direction parallel to a stretching/shrinking direction of the cylinder rod. The mounting table and the hydraulic cylinder may be supported by a rear end portion of a machine body frame of a construction machine.
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公开(公告)号：US20180065834A1
公开(公告)日：2018-03-08
申请号：US15447815
申请日：2017-03-02
发明人： Kota MIYOSHI
IPC分类号： B66C23/86 , B66C13/20 , B66C13/16 , B66C23/00 , F15B11/044 , F15B11/08 , F15B13/043
CPC分类号： B66C23/86 , B66C13/16 , B66C13/20 , B66C23/36 , B66C23/54 , F15B11/0445 , F15B11/08 , F15B13/0433
摘要： The crane includes a swing brake device installed between a hydraulic motor and a control valve and having a flow restrictor; a first backpressure detector detecting a motor backpressure between the flow restrictor and one of ports of the hydraulic motor; a second backpressure detector detecting a motor backpressure between the flow restrictor and the other port of the hydraulic motor; and a control device. The control device has an external-force direction estimation unit that estimates a swing direction of an upperstructure under an external force acting on the upperstructure on the basis of a motor backpressure detected by the first backpuressure detector and a motor backpressure detected by the second backpressure during an operating state of the swing brake device. The control device has a notification control unit that causes the notification device to provide notification of the estimated swing direction of the upperstructure.
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公开(公告)号：US20170073200A1
公开(公告)日：2017-03-16
申请号：US15361270
申请日：2016-11-25
发明人： Tomoaki YAMASHITA
CPC分类号： B66C23/365 , B66C9/00 , B66C23/62
摘要： A cylinder retraction system causes a crawler side frame hoisting hydraulic cylinder, swingably suspended on a ventral surface side of a lower boom, to swing between a retracted attitude, in which the hydraulic cylinder is set along a ventral surface of the lower boom, and an operating attitude, in which the hydraulic cylinder is oriented along a vertical direction. As the rod of the hydraulic cylinder, currently having the operating attitude, is contracted by a predetermined extent, the rod front end of the hydraulic cylinder is guided by the guiding portion until the hydraulic cylinder takes on the retracted attitude. As the hydraulic cylinder, currently having the retracted attitude, is extended by a predetermined extent, engagement between the rod front end of the hydraulic cylinder and the guiding portion is released so as to allow the hydraulic cylinder to take on the operating attitude.
摘要翻译： 气缸缩回系统使履带式起重机液压缸可摆动地悬挂在下起重臂的腹侧面上，在缩回姿态（其中液压缸沿着下悬臂的腹面设置）和 液压缸沿垂直方向定向的操作姿态。 由于当前具有操作姿势的液压缸的杆被预定的程度收缩，所以液压缸的杆前端由引导部分引导直到液压缸处于缩回姿势。 当液压缸目前具有缩回姿势时，预定程度地延伸，液压缸的杆前端和引导部分之间的接合被释放，以使液压缸承受操作姿势。
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公开(公告)号：US20160347588A1
公开(公告)日：2016-12-01
申请号：US15164976
申请日：2016-05-26
发明人： Hiroshi KUNINAGA , Akira HANAHARA
CPC分类号： B66C23/365 , B66C23/348 , B66C23/70 , B66C23/823
摘要： A crane includes: a boom; a jib; a front post that is swingably attached to a tip end side of the boom; a rear post that is swingably attached to the tip end side of the boom; a post-side pendant member, with one end of the post-side pendant member being attached to a tip end of the rear post; a boom-side pendant member, with one end of the boom-side pendant member being attached to another end of the post-side pendant member, and another end of the boom-side pendant member being attached to the boom; and a post driving device having a link mechanism that rotates the rear post in a range including a position at which the rear post is swung down to the front post side and a position at which the rear post is swung down to the boom side, while the boom is held down in a horizontal position.
摘要翻译： 起重机包括：起重机; 吊臂 可摆动地附接到动臂的末端侧的前柱; 可摆动地附接到动臂的末端侧的后柱; 后侧悬挂构件，后侧悬挂构件的一端附接到后柱的末端; 悬臂侧悬挂构件，其中悬臂侧悬挂构件的一端附接到后侧悬挂构件的另一端，并且悬臂侧悬挂构件的另一端附接到起重臂; 以及柱驱动装置，其具有使后柱旋转的连杆机构，该连杆机构在包括后柱向下摆动的位置到前柱侧的位置以及后柱向下摆动到悬臂侧的位置的同时 吊杆处于水平位置。
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公开(公告)号：US08930094B2
公开(公告)日：2015-01-06
申请号：US13894133
申请日：2013-05-14
发明人： Koji Torii
IPC分类号： B66C13/20
CPC分类号： B66C13/20
摘要： A control device for a hydraulic winch includes: a hydraulic source; a variable-displacement hydraulic motor; a winch operation member; an accelerator operation quantity detection unit; an engine control unit; a rotation speed detection unit; a line pull detection unit; a condition decision unit; and a motor displacement control unit, wherein: once the condition decision unit decides that the fuel-efficient, high-speed operation condition has been established, the engine control unit sets an upper limit to the engine rotation speed at a predetermined rotation speed, lower than the maximum rotation speed.
摘要翻译： 一种用于液压绞盘的控制装置包括：液压源; 可变排量液压马达; 绞车操作员; 加速器操作量检测单元; 发动机控制单元; 转速检测单元; 线拉检测单元; 条件决定单元; 以及电动机位移控制单元，其中：一旦所述条件判定单元判定已经建立了高效率的高速运行状态，则所述发动机控制单元以预定的转速设定发动机转速的上限，下限 比最大转速。
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公开(公告)号：US09944502B2
公开(公告)日：2018-04-17
申请号：US15361270
申请日：2016-11-25
发明人： Tomoaki Yamashita
CPC分类号： B66C23/365 , B66C9/00 , B66C23/62
摘要： A cylinder retraction system causes a crawler side frame hoisting hydraulic cylinder, swingably suspended on a ventral surface side of a lower boom, to swing between a retracted attitude, in which the hydraulic cylinder is set along a ventral surface of the lower boom, and an operating attitude, in which the hydraulic cylinder is oriented along a vertical direction. As the rod of the hydraulic cylinder, currently having the operating attitude, is contracted by a predetermined extent, the rod front end of the hydraulic cylinder is guided by the guiding portion until the hydraulic cylinder takes on the retracted attitude. As the hydraulic cylinder, currently having the retracted attitude, is extended by a predetermined extent, engagement between the rod front end of the hydraulic cylinder and the guiding portion is released so as to allow the hydraulic cylinder to take on the operating attitude.
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