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    • 1. 发明专利
    • Electric hydraulic actuator device and construction machinery
    • 电动液压驱动装置和建筑机械
    • JP2005127344A
    • 2005-05-19
    • JP2003360331
    • 2003-10-21
    • Kayaba Ind Co LtdKobe Steel LtdKobelco Contstruction Machinery Ltdカヤバ工業株式会社コベルコ建機株式会社株式会社神戸製鋼所
    • YOSHIMATSU HIDEAKITSUTSUI AKIRANANJO TAKAOEGAWA YOSHIHIROKATO KOKI
    • E02F9/20F15B11/00H02P3/18
    • PROBLEM TO BE SOLVED: To provide an electric hydraulic actuator device in which an actuator can be stabilized to operate by corresponding to the responsiveness of a motor and the hydraulic actuator. SOLUTION: In the electric hydraulic actuator device, a hydraulic pump 11 is connected to the motor 12, working liquid discharged from the hydraulic pump 11 is fed into the hydraulic actuator 9 via a control valve 13, and the motor 12 and the control valve 13 are controlled with a controller 19. When the speed command is input from an operating body 20, the controller 19 computes and outputs the rotation speed command value of the motor 12, while computes the switching direction and switching quantity of the control valve 13, and outputs as the command value. A command value correction part 19a, which retards at least either rising or falling of the rotation speed command value corresponding to the dynamic characteristics of the controller valve 13, is installed in the controller 19. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种电动液压致动器装置,其中致动器可以通过对应于电动机和液压致动器的响应来稳定以进行操作。 解决方案:在电动液压执行器装置中,液压泵11连接到电动机12,从液压泵11排出的工作液体经由控制阀13供给到液压致动器9中,电动机12和 控制器13由控制器19控制。当从操作体20输入速度指令时,控制器19计算并输出电动机12的转速指令值,同时计算控制阀的切换方向和切换量 13,输出作为指令值。 控制器19中安装有至少延迟与控制阀13的动态特性相对应的转速指令值的上升或下降的指令值校正部19a。(C)2005,JPO&NCIPI
    • 2. 发明专利
    • Hydraulic control device of working machine and working machine having the same
    • 工作机械液压控制装置及其工作机械
    • JP2010286074A
    • 2010-12-24
    • JP2009141276
    • 2009-06-12
    • Kobe Steel LtdKobelco Contstruction Machinery Ltdコベルコ建機株式会社株式会社神戸製鋼所
    • SUGANO NAOKINANJO TAKAO
    • F15B11/024E02F9/22F15B11/00
    • PROBLEM TO BE SOLVED: To provide a hydraulic control device and a working machine having the same capable of improving fuel economy by regenerating a hydraulic fluid in a state of compositely operating a plurality of hydraulic actuators. SOLUTION: The hydraulic control device includes a regenerating oil passage y4 for connecting oil passages y2 and y3 between a boom cylinder 9 and a first control valve 17, a regenerating valve 18 capable of adjusting a flow rate of the hydraulic fluid flowing in the regenerating oil passage y4, an operation member for outputting a command for operating the first control valve 17 and the regenerating valve 18 by receiving input operation, and a limiting valve 19 capable of adjusting the flow rate of the hydraulic fluid flowing to the oil passage y2 from the first control valve 17 regardless of an operation quantity of the operation member, and determines whether or not the hydraulic fluid is regenerated via the regenerating oil passage y4, and reduces a flow rate of a hydraulic pump by throttling an opening of the limiting valve 19 when it is determined that the hydraulic fluid is regenerated. COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:提供一种液压控制装置和具有该液压控制装置的工作机,能够通过在复合地操作多个液压致动器的状态下再生液压流体来提高燃油经济性。 解决方案:液压控制装置包括用于连接动臂缸9和第一控制阀17之间的油路y2和y3的再生油通道y4,能够调节流入的液压流体的流量的再生阀18 再生油通道y4,用于输入用于通过接收输入操作来操作第一控制阀17和再生阀18的指令的操作构件以及能够调节流向油路的液压流体的流量的限制阀19 y2,而与操作构件的操作量无关,并且确定液压流体是否经由再生油路y4再生,并且通过节流限制阀的开度来减小液压泵的流量 当确定液压流体被再生时,阀19。 版权所有(C)2011,JPO&INPIT
    • 3. 发明专利
    • Construction machine
    • 建筑机械
    • JP2014083908A
    • 2014-05-12
    • JP2012232627
    • 2012-10-22
    • Kobe Steel Ltd株式会社神戸製鋼所Kobelco Contstruction Machinery Ltdコベルコ建機株式会社
    • IMANISHI ETSUJIRONANJO TAKAO
    • B60W10/08B60K6/48B60W10/06B60W20/00E02F9/20
    • Y02T10/6221Y02T10/6286
    • PROBLEM TO BE SOLVED: To provide a construction machine capable of suppressing variation in power of an engine, while making use of power generated at a hydraulic motor.SOLUTION: The construction machine includes: an engine (20); a hydraulic pump (18); a hydraulic actuator (10); a hydraulic motor (22); a generator motor (24) having a function, as a motor, for driving the hydraulic pump (18) and a function, as a generator, for generating electric power by at least one of engine power and regenerated power generated at the hydraulic motor (22); a capacitor (26); and a control part (30). When remaining power obtained by subtracting the regenerated power from pump power necessary for drive of the hydraulic pump (18) is equal to or above a predetermined upper limit value of the engine power, the control part (30) makes the generator motor (24) work as the motor by electric power of the capacitor (26), and when the remaining power is equal to or under a predetermined lower limit value of the engine power, makes the generator motor (24) work as the generator.
    • 要解决的问题:提供一种能够抑制发动机的功率变化的施工机械,同时利用在液压马达产生的动力。解决方案:施工机械包括:发动机(20); 液压泵(18); 液压致动器(10); 液压马达(22); 具有用于驱动液压泵(18)的作为电动机的功能的发电电动机(24)和通过发动机功率和在液压马达产生的再生功率中的至少一个发电的功能的发电机( 22); 电容器(26); 和控制部(30)。 当通过从驱动液压泵(18)所需的泵浦功率减去再生功率而获得的剩余功率等于或大于发动机功率的预定上限值时,控制部(30)使发电电动机(24) 通过电容器26的电力作为电动机工作,并且当剩余功率等于或低于发动机功率的预定下限值时,使发电机电动机24作为发电机起作用。
    • 4. 发明专利
    • Control device and working machine having the same
    • 控制装置和具有该装置的工作机
    • JP2010276126A
    • 2010-12-09
    • JP2009130071
    • 2009-05-29
    • Kobe Steel LtdKobelco Contstruction Machinery Ltdコベルコ建機株式会社株式会社神戸製鋼所
    • NANJO TAKAOSENOO SABUROHIROSAWA MITSUNORI
    • F15B11/00E02F9/22F04B49/00F04B49/06F15B11/16
    • E02F9/2235E02F9/2285E02F9/2292E02F9/2296
    • PROBLEM TO BE SOLVED: To provide a control device and a working machine having the same, for restraining the setting of absorption horse power exceeding horse power actually required for respective actuators.
      SOLUTION: This control device includes a storage part 31 for storing a map of associating its control quantity to an upper limit value of the absorption horse power of a hydraulic pump 17A with each operation content specified by a cylinder being an operation object among cylinders 9 and 11 and the direction of operation performed on these cylinders, an operation horse power determining part 32 for determining the upper limit value of the absorption horse power with respective cylinders 9 and 11 by using the map stored in the storage part when an operation command is input to at least one cylinder by operation levers 22 and 23, a high position selecting part 33 for electing the upper limit value of the largest absorption horse power among the upper limit value of the absorption horse power determined by the operation horse power determining part 32, and a regulator 24A for adjusting capacity of the hydraulic pump 17A so as to become horse power of the absorption horse power or less selected by the high position selecting part 33.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种控制装置和具有该控制装置的作业机械,用于限制各个致动器实际需要的超过马力的吸收马力的设定。 解决方案:该控制装置包括存储部分31,用于存储将其控制量与液压泵17A的吸收马力的上限值相关联的映射,其中每个操作内容由作为操作对象的气缸指定, 气缸9和11以及在这些气缸上执行的操作方向;操作马力确定部32,用于通过使用存储在存储部中的映射来确定具有各个气缸9和11的吸收马功率的上限值 指令通过操作杆22和23输入到至少一个气缸,高位置选择部分33用于选择由操作马功率确定确定的吸收马力的上限值中的最大吸收马力的上限值 部分32和用于调节液压泵17A的容量以便成为吸收马力的马力的调节器24A 由高位选择部分33选择。版权所有:(C)2011,JPO&INPIT
    • 5. 发明专利
    • 建設機械
    • 建筑机械
    • JP2014201904A
    • 2014-10-27
    • JP2013076853
    • 2013-04-02
    • 株式会社神戸製鋼所Kobe Steel Ltdコベルコ建機株式会社Kobelco Contstruction Machinery Ltd
    • MASUDA KYOKOKIMURA YASUMASAIKEDA YOHEINANJO TAKAOSUGANO NAOKIUEDA KAZUHIRO
    • E02F9/16G10K11/178
    • 【課題】油圧シリンダがストロークエンドとなったときに発生する衝撃音による騒音低減装置の制御の発散を抑制可能な建設機械を提供すること。【解決手段】建設機械であって、油圧シリンダにより駆動される作業アタッチメントと、騒音低減装置(20)と、制御手段(30)とを備え、騒音低減装置(20)は、騒音検出手段(21)と制御信号生成手段(22)と制御音放出手段(23)とを有し、制御手段(30)は、直前位置とストロークエンドとの間に油圧シリンダが位置するときに騒音低減装置(20)の動作を停止する、ゼロ信号上書き部をオン状態にする、制御音放出手段(23)から放出される制御音の音量をデジタル的にゼロにするとともに係数更新部でのフィルタ係数の更新を停止する、あるいは、係数更新部においてフィルタ係数をゼロにすること。【選択図】図2
    • 要解决的问题:提供一种能够抑制由于在液压缸到达行程末端时产生的冲击声引起的降噪装置的控制的发散的施工机械。解决方案:一种施工机械包括由液压缸驱动的工件, 降噪装置(20)和控制装置(30)。 降噪装置(20)具有噪声检测装置(21),控制信号发生装置(22)和控制声音发射装置(23)。 当液压缸位于前一位置和行程端之间时,控制装置(30)停止降噪装置(20)的操作,使零信号重写部分进入打开状态,带来音量 从控制声音发射装置(23)发射的控制声音数字地变为零,并且停止因子更新部分中的滤波器因子的更新,或者在因子更新部分中使滤波器因子为零。
    • 7. 发明专利
    • Power regeneration circuit for hybrid type construction machine
    • 混合式建筑机械的再生电路
    • JP2014066302A
    • 2014-04-17
    • JP2012211952
    • 2012-09-26
    • Kobe Steel Ltd株式会社神戸製鋼所Kobelco Contstruction Machinery Ltdコベルコ建機株式会社
    • NANJO TAKAOIMANISHI ETSUJIROGOTO NAOKI
    • F15B21/14E02F9/20
    • PROBLEM TO BE SOLVED: To make a hydraulic motor compact and low-cost, improve mountability of equipment on a revolving body, and improve regeneration efficiency of actuator regenerative power.SOLUTION: When actuator regenerative power P1 is equal to or less than regeneratable power P2 by a first hydraulic motor (YES at S7), the first hydraulic motor regenerates the actuator regenerative power P1 (S19). When the actuator regenerative power P1 is larger than the regeneratable power P2 by the first hydraulic motor (NO at S7), the first hydraulic motor regenerates the actuator regenerative power P1 by the regeneratable power P2 (S20) and a second hydraulic motor regenerates an excess (regenerative surplus power P3) of the actuator regenerative power P1 based upon the regeneratable power P2 (S29, S30).
    • 要解决的问题:为了使液压马达紧凑,成本低廉,提高了设备​​在旋转体上的安装性,提高了再生能源的再生效率。解决方案:当执行器再生功率P1等于或小于可再生功率P2 通过第一液压马达(S7中为“是”),第一液压马达再生致动器再生功率P1(S19)。 当致动器再生功率P1大于第一液压马达的可再生功率P2(S7为否)时,第一液压马达通过再生功率P2再生致动器再生功率P1(S20),第二液压马达再生过量 (再生剩余功率P3),基于可再生功率P2(S29,S30)。
    • 8. 发明专利
    • Hydraulic control device and working machine provided with the same
    • 液压控制装置及其相应的工作机械
    • JP2013087831A
    • 2013-05-13
    • JP2011227749
    • 2011-10-17
    • Kobe Steel Ltd株式会社神戸製鋼所Kobelco Contstruction Machinery Ltdコベルコ建機株式会社
    • NANJO TAKAOSENOO SABUROGOTO NAOKI
    • F15B21/14E02F9/22
    • E02F9/2217E02F9/2091E02F9/226E02F9/2285E02F9/2289E02F9/2292E02F9/2296F15B13/06F15B21/14F15B2211/20546F15B2211/253F15B2211/7053F15B2211/7058F15B2211/88
    • PROBLEM TO BE SOLVED: To provide a hydraulic control device capable of suppressing cavitation of a regenerative motor for regenerating energy which a hydraulic actuator has while reducing power loss, and to provide a working machine provided with the device.SOLUTION: The hydraulic control device includes: a recovery oil passage R7 for recovering a hydraulic fluid delivered from hydraulic actuators 11, 12 and hydraulic pumps 16, 17 into a tank T; a regenerative motor 18 which rotates the output shaft 7a of an engine 7 according to the supply of the hydraulic fluid and are rotated and driven by the rotation of the output shaft 7a of the engine 7; a regenerative oil passage R8 for guiding a return oil from a boom cylinder 12 to the regenerative motor 18 without passing though the recovery oil passage R7; a connecting oil passage R9, which connects the recovery oil passage R7 with the regenerative oil passage R8; and a regeneration side check valve 21 which is provided in the connecting oil passage R9 to allow the flow of the hydraulic oil from the recovery oil passage R7 toward the regenerative motor 18 and to restrict the flow of the hydraulic oil from the regenerative motor 18 toward the recovery oil passage R7.
    • 要解决的问题:提供一种液压控制装置,其能够抑制再生电动机的气蚀,以使液压致动器具有的能量再生,同时减少动力损失,并提供设置有该装置的作业机械。 解决方案:液压控制装置包括:回收油通道R7,用于将从液压致动器11,12和液压泵16,17输送的液压流体回收到罐T中; 再生马达18,其根据液压流体的供给使发动机7的输出轴7a旋转,并通过发动机7的输出轴7a的旋转而旋转驱动; 用于将返回油从动臂缸12引导到再生电动机18的再生油路R8,而不经过回收油路R7; 连接油路R9,其将回收油路R7与再生油路R8连接; 以及再生侧止回阀21,其设置在连接油路R9中,以允许来自回收油路R7的液压油朝向再生马达18流动,并且将来自再生马达18的液压油的流量限制为 回油口R7。 版权所有(C)2013,JPO&INPIT
    • 10. 发明专利
    • エンジン始動制御装置
    • 发动机起动控制装置
    • JP2014227948A
    • 2014-12-08
    • JP2013109235
    • 2013-05-23
    • 株式会社神戸製鋼所Kobe Steel Ltdコベルコ建機株式会社Kobelco Contstruction Machinery Ltd
    • MORITA HIROSHINANJO TAKAOMAEKAWA TOMOHITO
    • F02N7/00
    • 【課題】エンジン始動時の衝撃音を抑制し、かつ、エンジン始動性の悪化を抑制する。【解決手段】エンジン11始動時に、圧力センサ37が検出した圧力P1が所定圧力P1b未満の場合(S21でNOの場合)、放出弁35の開度が第1開度A1となるように制御される(S25)。エンジン11始動時に、圧力センサ37が検出した圧力P1が所定圧力P1b以上の場合(S21でYESの場合)、放出弁35の上流側と下流側との差圧&Dgr;Pが所定差圧&Dgr;Pa未満の間は、第1開度A1よりも小さい第2開度A2となるように放出弁35の開度が制御される(S24)とともに、差圧&Dgr;Pが所定差圧&Dgr;Pa以上となった時には、放出弁35の開度が第2開度A2よりも大きくなるように制御される(S25)。【選択図】図2
    • 要解决的问题:为了抑制发动机起动时的冲击噪音,并且抑制发动机起动性的劣化。解决方案:在发动机11启动时,将释放阀35的开度控制为第一开度A1(S25),当a 由压力传感器37检测到的压力P1小于规定压力P1b(S21;否)。 在发动机11的启动中,当由压力传感器37检测到的压力P1等于或大于规定压力P1b(S21;是)时,释放阀35的开度被控制为小于 第一开口A1(S24),而在释放阀35的上游侧和下游侧之间的压差Dgr; P小于规定的压差Dgr; Pa,并且将释放阀35的开度控制为 大于第二开口A2(S25),当差压Dgr; P等于或大于规定压差Dgr; Pa时。