公开(公告)号：US20210088058A1

公开(公告)日：2021-03-25

申请号：US17114060

申请日：2020-12-07

申请人： SUMITOMO HEAVY INDUSTRIES CONSTRUCTION CRANES CO., LTD.

发明人： Hiroyuki Tomioka

IPC分类号： F15B19/00 ,  B66C13/16 ,  B66C13/20

摘要： Provided is a construction machine including a hydraulic system having a hydraulic pump, and a first hydraulic actuator and a second hydraulic actuator which are driven by hydraulic oil supplied from the hydraulic pump. The construction machine includes a first flow rate detector that detects a flow rate of drain hydraulic oil discharged from the first hydraulic actuator, a second flow rate detector that detects a flow rate of drain hydraulic oil discharged from the second hydraulic actuator, and an abnormality determination unit that determines abnormality of the first hydraulic actuator, based on a detection signal from the first flow rate detector, and determines abnormality of the second hydraulic actuator, based on a detection signal from the second flow rate detector. The first flow rate detector and the second flow rate detector each have a moving body.

公开(公告)号：US10836612B1

公开(公告)日：2020-11-17

申请号：US16954125

申请日：2018-12-18

申请人： TADANO LTD.

发明人： Naotaka Masuda ,  Kenji Urushihara ,  Takashi Kawano

IPC分类号： B66C13/20 ,  B66C23/00 ,  B66D1/50 ,  B66C23/88 ,  B66C23/36

摘要： The present invention is provided with: a manipulation unit; a winch device that operates with an actuation mode of either a high speed mode or a low speed mode, and winds in or reels out a wire rope; a selection unit for an operator to select either the high speed mode or the low speed mode; a load calculation unit calculating a suspended load; a tension calculation unit calculating the tension of the wire rope; and a control unit controlling the actuation of the winch device. If the mode selected by the selection unit is the high speed mode, the manipulation unit is manipulated from a neutral state to a non-neutral state, and the suspended load is smaller than a load threshold and the tension is smaller than a tension threshold, the control unit controls the winch device so as to operate in the high speed mode.

公开(公告)号：US10704229B2

公开(公告)日：2020-07-07

申请号：US15758033

申请日：2016-08-26

申请人： Kobe Steel, Ltd.

发明人： Shohei Uemura ,  Naoki Sugano ,  Naoto Hori ,  Satoshi Maekawa

IPC分类号： E02F9/22 ,  F15B21/14 ,  B66D1/44 ,  E02F9/20 ,  F15B1/02 ,  B66C13/20 ,  F15B11/17

摘要： A hydraulic driving apparatus that drives a plurality of driving subjects and regenerates energy thereof. This hydraulic driving apparatus includes: a first pump motor; a second pump motor that is switchable between a state of moving a first driving subject by hydraulic oil discharged from the first pump motor and a state of being operated as a pump by means of energy of the first driving subject; a first pump motor line that couples the first and second pump motors with each other; a first accumulator connected to the first pump motor line; a regeneration subject hydraulic actuator that moves a second driving subject; a second accumulator that receives hydraulic oil from the regeneration subject hydraulic actuator; a second pump motor line that couples the second accumulator with the first pump motor; and a pressure release changeover valve that opens/closes the second pump motor line.

公开(公告)号：US10690151B2

公开(公告)日：2020-06-23

申请号：US15622663

申请日：2017-06-14

申请人： Liebherr-Mining Equipment Colmar SAS

发明人： Philipp Hahn ,  Volker Gliniorz ,  Guillaume Bonnetot

IPC分类号： F15B1/02 ,  F15B21/14 ,  F15B1/033 ,  E02F9/22 ,  B66C13/20 ,  F15B1/04 ,  F15B1/26 ,  F15B11/16 ,  F15B13/04 ,  F15B15/18 ,  F15B20/00 ,  B66C13/00

摘要： Device for recovering hydraulic energy in a machine comprising at least a first differential cylinder-piston assembly having a differential cylinder with a separate rod and base side, at least a second differential cylinder-piston assembly having a differential cylinder with a separate rod and base side, and at least one hydraulic accumulator that can be hydraulically connected to at least one of the differential cylinder-piston assemblies, wherein the differential cylinder-piston assemblies are mechanically coupled to one another, and wherein the potential energy of at least one of the differential cylinder-piston assemblies retracting under a compressive load can at least partially be stored in the hydraulic accumulator.

公开(公告)号：US20190337775A1

公开(公告)日：2019-11-07

申请号：US16474341

申请日：2016-12-30

申请人： XUZHOU Heavy Machinery Co., LTD.

发明人： Zenghai SHAN ,  Quan DONG ,  Donghong LIU ,  Xiaoqiang XIANG ,  Zhengde ZHANG ,  Yongjian DENG ,  Shuai WANG ,  Xiaodong HU ,  Xiaojie DU ,  Weichao ZHONG ,  Jianying HAN

IPC分类号： B66C23/00 ,  B66C13/20 ,  B66C23/82 ,  F15B11/024 ,  F15B21/14

摘要： The present disclosure relates to the technical field of cranes, and in particular to a crane hydraulic control system and a crane. The crane hydraulic control system of the present disclosure includes a prime mover, an execution control mechanism, a hydraulic baking device, a running energy recycling device and an operation energy recycling device. By means of cooperation among the operation energy recycling device, the energy recovery device and the hydraulic energy conversion device, kinetic energy in a driving braking process of the crane and the potential energy in a load lowing process are respectively converted into hydraulic energy for recovery, storage and reuse, therefore, the present disclosure can achieve the recovery of the superstructure energy and the lower vehicle energy of the crane so as to effectively reduce the energy waste.

公开(公告)号：US20180179027A1

公开(公告)日：2018-06-28

申请号：US15850926

申请日：2017-12-21

申请人： Liebherr-Werk Ehingen GmbH

发明人： Roland BOHNACKER ,  Max Kenzelmann

IPC分类号： B66C13/46 ,  B66C13/20 ,  B66C13/06 ,  B66C23/76

摘要： The present invention relates to a process for the assisted performance of crane movements by a crane with at least two boom elements that are movable relative to one another, whereby an auxiliary control module, after activation by the user, determines at least one target position of the boom system, determines the crane movements necessary for achieving the target position and, after active user confirmation, indirectly or directly activates the specific crane actuators for the performance of the crane movements determined by means of the crane control.

公开(公告)号：US09638217B2

公开(公告)日：2017-05-02

申请号：US14006342

申请日：2011-12-26

申请人： Shuanglai Yang

发明人： Shuanglai Yang

IPC分类号： E02F9/22 ,  F15B1/02 ,  F15B13/02 ,  B66C13/20 ,  F15B21/14

CPC分类号： F15B13/02 ,  B66C13/20 ,  E02F9/2217 ,  E02F9/226 ,  E02F9/2271 ,  F15B1/024 ,  F15B21/14 ,  F15B2211/212 ,  F15B2211/62 ,  F15B2211/7107 ,  F15B2211/88

摘要： A lifting system for a jib of an operating machine that includes an energy storage device having an energy storage cylinder and an accumulator, the energy storage cylinder having an upper chamber, a lower chamber, and an energy storage piston rod connected to the jib. The upper part of the accumulator is filled with gas, and the lower part of the accumulator is filled with hydraulic oil and communicates with the lower chamber of the energy storage cylinder. The lifting system also includes a hydraulic pump and a control cylinder for controlling the lifting of the jib, which comprises an upper chamber, a lower chamber, and a control piston rod connected to the jib.

公开(公告)号：US20160289050A1

公开(公告)日：2016-10-06

申请号：US15186403

申请日：2016-06-17

申请人： Xuzhou Heavy Machinery Co., Ltd.

发明人： Junfei Chai ,  Huapeng Cui ,  Hongmin Zhang ,  Lei Li ,  Cuiping Wang

IPC分类号： B66C23/70 ,  F15B13/044 ,  F15B11/08 ,  F15B13/04 ,  B66C15/00 ,  B66C13/20

CPC分类号： B66C23/705 ,  B66C13/20 ,  B66C15/00 ,  F15B11/08 ,  F15B13/0401 ,  F15B13/044 ,  F15B2211/426

摘要： An apparatus for a crane comprises a large-cavity pressure sensor, a small-cavity pressure sensor, a controller, a telescopic oil cylinder, and a telescopic oil cylinder regulator. The large-cavity pressure sensor can measure the oil pressure in a large cavity of the telescopic oil cylinder. The small cavity pressure sensor can measure the oil pressure in a small cavity of the telescopic oil cylinder. The controller can control an output electrical signal according to a large-cavity oil pressure fed back by the large-cavity pressure sensor and a small-cavity oil pressure fed back by the small-cavity pressure sensor, and, by means of the electrical signal, control a change of the amount of hydraulic oil flowing into and out of the large cavity and the small cavity of the telescopic oil cylinder so as to regulate the oil pressures in the large cavity and the small cavity.

摘要翻译： 一种用于起重机的设备包括大腔压力传感器，小腔压力传感器，控制器，伸缩油缸和伸缩油缸调节器。 大型腔压力传感器可以测量伸缩油缸大腔内的油压。 小型腔压力传感器可以测量伸缩油缸的小腔中的油压。 控制器可以根据由大腔压力传感器反馈的大腔油压和由小腔压力传感器反馈的小腔油压来控制输出电信号，并通过电信号 控制流入和流出伸缩油缸的大腔和小腔的液压油量的变化，以调节大腔和小腔中的油压。

公开(公告)号：US06868671B2

公开(公告)日：2005-03-22

申请号：US09904512

申请日：2001-07-16

申请人： Masaaki Ehara ,  Katsuki Yamagata ,  Taisuke Tsunoo ,  Takahiro Kobayashi ,  Ryo Yamamoto ,  Noboru Ito

发明人： Masaaki Ehara ,  Katsuki Yamagata ,  Taisuke Tsunoo ,  Takahiro Kobayashi ,  Ryo Yamamoto ,  Noboru Ito

IPC分类号： B66C13/20 ,  B66C13/18 ,  B66C23/00 ,  B66C23/82 ,  E02F9/22 ,  F15B11/17 ,  F16D31/02

CPC分类号： F15B11/17 ,  B66C13/18 ,  E02F9/2292 ,  F15B2211/20576 ,  F15B2211/30595 ,  F15B2211/3116 ,  F15B2211/329 ,  F15B2211/351 ,  F15B2211/50518 ,  F15B2211/50563 ,  F15B2211/55 ,  F15B2211/57 ,  F15B2211/7058 ,  F15B2211/78

摘要： The present invention provides a hydraulic circuit for a crane wherein a switching valve is provided between a plurality of motor circuits connected in series within the same actuator group, and at the time of simultaneous operation of the motor circuits, the switching valve is switched from a first position to a second position whereby the series connection between the motor circuits is cut off, and they are driven by each of separate hydraulic sources, thereby enabling prevention of pressure interference at the time of simultaneous operation of the motor circuits within the same actuator group without increasing hydraulic sources.

摘要翻译： 本发明提供一种用于起重机的液压回路，其中切换阀设置在同一致动器组内串联连接的多个马达回路之间，并且在马达回路同时工作时，切换阀从 第一位置到第二位置，由此电动机电路之间的串联连接被切断，并且它们由各个单独的液压源驱动，由此能够防止在同一致动器组内的电动机电路同时操作时的压力干扰 不增加液压源。

公开(公告)号：US5579931A

公开(公告)日：1996-12-03

申请号：US210988

申请日：1994-03-18

申请人： Arthur G. Zuehlke ,  David J. Pech

发明人： Arthur G. Zuehlke ,  David J. Pech

IPC分类号： B66C13/20 ,  B66C13/18 ,  B66C13/40 ,  B66C13/48 ,  B66D1/26

CPC分类号： B66C13/18

摘要： An improved method and system for a liftcrane in which a load is lifted through the combined action of first and second hoist drums. The method and system use a first rope wound on one hoist drum and a second rope wound on the second hoist drum. The ends of the ropes opposite the hoist drums are linked together to transmit tension between them. The load is coupled to the ropes. If the take up speed of one of the ropes exceeds the take up speed of the other, the linked ends of the ropes will shift. This condition is detected and the operation of at least one of the first and second hoist drums is modified to bring the take up rates into balance. This system is advantageously used with a hoist block sheave arrangement. This system can also be used with a single rope in which each of the ends of the single rope are wound on a separate one of the hoist drums and the load is coupled to the middle of the rope.

摘要翻译： 一种用于电梯的改进的方法和系统，其中负载通过第一和第二提升滚筒的组合作用提升。 该方法和系统使用缠绕在一个卷扬鼓上的第一绳索和缠绕在第二提升滚筒上的第二绳索。 与起重机鼓相对的绳索的端部连接在一起以在它们之间传递张力。 负载耦合到绳索。 如果其中一根绳索的卷取速度超过另一条绳索的卷取速度，则绳索的连接端将移动。 检测到这种情况，修改第一和第二提升滚筒中的至少一个的操作，以使卷取速率平衡。 该系统有利地用于起重滑轮滑轮装置。 该系统还可以与单个绳索一起使用，其中单个绳索的每个端部缠绕在提升卷筒的单独的一个上，并且负载联接到绳索的中间。