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公开(公告)号：US20120260646A1
公开(公告)日：2012-10-18
申请号：US13502166
申请日：2011-12-27
CPC分类号： E02F9/2228 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B13/06 , F15B13/08 , Y10T137/7761
摘要： A controller controls the solenoid-operated variable pressure relief valves that are provided to control, at set pressures that can be electrically commanded, pressure of hydraulic oil fed to an attachment cylinder. The controller is provided with a control logic that is capable of controlling the aforementioned solenoid-operated variable pressure relief valves. The control logic performs the aforementioned calculation by compensating for pressure override characteristics of each solenoid-operated variable pressure relief valve based on input signals related to the set relief pressure for and a relief valve passing flow rate of the solenoid-operated variable pressure relief valve, and outputting to the solenoid-operated variable pressure relief valve command signals related to the adjusted set relief pressure resulting from the compensation of the pressure override characteristics.
摘要翻译： 控制器控制电磁操作的可变减压阀，其被设置为在可以电气指令的设定压力下控制供给到附接缸的液压油的压力。 该控制器设置有能够控制上述电磁可变泄压阀的控制逻辑。 控制逻辑通过基于与电磁可变压力安全阀的设定的释放压力和安全阀通过流量相关的输入信号来补偿每个电磁操作的可变压力释放阀的压力超限特性来进行上述计算， 并且输出到电磁可变泄压阀命令与由压力超驰特性的补偿产生的经调整的设定释放压力相关的指令信号。
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公开(公告)号：US09309649B2
公开(公告)日：2016-04-12
申请号：US13255656
申请日：2010-02-02
CPC分类号： E02F9/2296 , E02F3/966 , E02F9/2228 , E02F9/2285 , E02F9/2292
摘要： A work machine equipped with an automatic hammering function is capable of preventing breakage of the hammer caused by blank firing. Hydraulic oil fed to a hydraulic breaker at the distal end of a work machine is controlled by first and second spools. Operating an operation lever so as to contract single rod type boom cylinders to press the hydraulic breaker against an object to be crushed. Head-side pressure and rod-side pressure of the boom cylinders are respectively detected by pressure sensors. Any one of switches is used to switch the mode of automatic hammering operation between an automatic hammering inhibiting mode and an automatic hammering authorizing mode. In the automatic hammering authorizing mode, a controller controls the first and second spools of the hydraulic breaker so as to open them only when head-side pressure and rod-side pressure of the boom cylinders are in a given range of pressing force.
摘要翻译： 配备有自动锤击功能的作业机器能够防止由于坯料烧制造成的锤子破损。 通过第一和第二卷轴控制供给到作业机械末端的液压破碎器的液压油。 操作操作杆，以收缩单杆式动臂缸，将液压破碎机压靠待压碎的物体。 动臂缸的头侧压力和杆侧压力分别由压力传感器检测。 任何一个开关用于在自动打击抑制模式和自动锤击授权模式之间切换自动锤击操作模式。 在自动锤击授权模式中，控制器控制液压破碎器的第一和第二线轴，以便仅当起重臂液压缸的侧面压力和杆侧压力处于给定的按压力范围时才能打开。
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公开(公告)号：US08899035B2
公开(公告)日：2014-12-02
申请号：US13265750
申请日：2010-08-17
申请人： Hiroyasu Nishikawa , Seiichi Akiyama , Yusuke Shimizu , Atsunobu Doi , Sei Shimahara , Manabu Nakanishi , Masashi Shibata
发明人： Hiroyasu Nishikawa , Seiichi Akiyama , Yusuke Shimizu , Atsunobu Doi , Sei Shimahara , Manabu Nakanishi , Masashi Shibata
IPC分类号： F16D31/02 , E02F9/22 , F15B11/042
CPC分类号： E02F9/2235 , E02F9/2282 , E02F9/2285 , E02F9/2296 , F15B11/0423 , F15B2211/20523 , F15B2211/20553 , F15B2211/255 , F15B2211/3116 , F15B2211/45 , F15B2211/6316 , F15B2211/633 , F15B2211/6652 , F15B2211/6654 , F15B2211/85 , F15B2211/88
摘要： A hydraulic pump driven by an engine, a hydraulic actuator, and a negative control circuit are provided on an open center hydraulic circuit, for guiding the hydraulic pressure in the center bypass to the hydraulic pump, as a negative control pressure. A negative control pressure control device controls the negative control pressure to an arbitrary value is also provided. The pump characteristic of the hydraulic pump is set such that the discharge flow rate is minimized when the negative control pressure in the negative control circuit is equal to or greater than a first predetermined pressure. Furthermore, an idling detection device that detects whether the hydraulic actuator is in a non-operated state or not is provided. The negative control pressure is forcefully controlled to the first predetermined pressure or higher when the non-operating state is detected.
摘要翻译： 由发动机驱动的液压泵，液压致动器和负控制回路设置在开启中心液压回路上，用于将中心旁路中的液压引导到液压泵，作为负控制压力。 还提供负控制压力控制装置将负控制压力控制为任意值。 液压泵的泵特性被设定为当负控制回路中的负控制压力等于或大于第一预定压力时，排出流量最小化。 此外，提供了检测液压致动器是否处于非操作状态的怠速检测装置。 当检测到非操作状态时，负控制压力被强制地控制到第一预定压力或更高。
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公开(公告)号：US20120036845A1
公开(公告)日：2012-02-16
申请号：US13265750
申请日：2010-08-17
申请人： Hiroyasu Nishikawa , Seiichi Akiyama , Yusuke Shimizu , Atsunobu Doi , Sei Shimahara , Manabu Nakanishi , Masashi Shibata
发明人： Hiroyasu Nishikawa , Seiichi Akiyama , Yusuke Shimizu , Atsunobu Doi , Sei Shimahara , Manabu Nakanishi , Masashi Shibata
IPC分类号： F15B15/02
CPC分类号： E02F9/2235 , E02F9/2282 , E02F9/2285 , E02F9/2296 , F15B11/0423 , F15B2211/20523 , F15B2211/20553 , F15B2211/255 , F15B2211/3116 , F15B2211/45 , F15B2211/6316 , F15B2211/633 , F15B2211/6652 , F15B2211/6654 , F15B2211/85 , F15B2211/88
摘要： A hydraulic pump driven by an engine, a hydraulic actuator, and a negative control circuit are provided on an open center hydraulic circuit, for guiding the hydraulic pressure in the center bypass to the hydraulic pump, as a negative control pressure. A negative control pressure control device controls the negative control pressure to an arbitrary value is also provided. The pump characteristic of the hydraulic pump is set such that the discharge flow rate is minimized when the negative control pressure in the negative control circuit is equal to or greater than a first predetermined pressure. Furthermore, an idling detection device that detects whether the hydraulic actuator is in a non-operated state or not is provided. The negative control pressure is forcefully controlled to the first predetermined pressure or higher when the non-operating state is detected.
摘要翻译： 由发动机驱动的液压泵，液压致动器和负控制回路设置在开启中心液压回路上，用于将中心旁路中的液压引导到液压泵，作为负控制压力。 还提供负控制压力控制装置将负控制压力控制为任意值。 液压泵的泵特性被设定为当负控制回路中的负控制压力等于或大于第一预定压力时，排出流量最小化。 此外，提供了检测液压致动器是否处于非操作状态的怠速检测装置。 当检测到非操作状态时，负控制压力被强制地控制到第一预定压力或更高。
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公开(公告)号：US20110315415A1
公开(公告)日：2011-12-29
申请号：US13255656
申请日：2010-02-02
IPC分类号： B25D9/16
CPC分类号： E02F9/2296 , E02F3/966 , E02F9/2228 , E02F9/2285 , E02F9/2292
摘要： A work machine equipped with an automatic hammering function is capable of preventing breakage of the hammer caused by blank firing. Hydraulic oil fed to a hydraulic breaker at the distal end of a work machine is controlled by first and second spools. Operating an operation lever so as to contract single rod type boom cylinders to press the hydraulic breaker against an object to be crushed. Head-side pressure and rod-side pressure of the boom cylinders are respectively detected by pressure sensors. Any one of switches is used to switch the mode of automatic hammering operation between an automatic hammering inhibiting mode and an automatic hammering authorizing mode. In the automatic hammering authorizing mode, a controller controls the first and second spools of the hydraulic breaker so as to open them only when head-side pressure and rod-side pressure of the boom cylinders are in a given range of pressing force.
摘要翻译： 配备有自动锤击功能的作业机器能够防止由于坯料烧制造成的锤子破损。 通过第一和第二卷轴控制供给到作业机械末端的液压破碎器的液压油。 操作操作杆，以收缩单杆式动臂缸，将液压破碎机压靠待压碎的物体。 动臂缸的头侧压力和杆侧压力分别由压力传感器检测。 任何一个开关用于在自动打击抑制模式和自动锤击授权模式之间切换自动锤击操作模式。 在自动锤击授权模式中，控制器控制液压破碎器的第一和第二线轴，以便仅当起重臂液压缸的侧面压力和杆侧压力处于给定的按压力范围时才能打开。
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公开(公告)号：US09103095B2
公开(公告)日：2015-08-11
申请号：US13502166
申请日：2011-12-27
CPC分类号： E02F9/2228 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B13/06 , F15B13/08 , Y10T137/7761
摘要： A controller controls the solenoid-operated variable pressure relief valves that are provided to control, at set pressures that can be electrically commanded, pressure of hydraulic oil fed to an attachment cylinder. The controller is provided with a control logic that is capable of controlling the aforementioned solenoid-operated variable pressure relief valves. The control logic performs the aforementioned calculation by compensating for pressure override characteristics of each solenoid-operated variable pressure relief valve based on input signals related to the set relief pressure for and a relief valve passing flow rate of the solenoid-operated variable pressure relief valve, and outputting to the solenoid-operated variable pressure relief valve command signals related to the adjusted set relief pressure resulting from the compensation of the pressure override characteristics.
摘要翻译： 控制器控制电磁操作的可变减压阀，其被设置为在可以电气指令的设定压力下控制供给到附接缸的液压油的压力。 该控制器设置有能够控制上述电磁可变泄压阀的控制逻辑。 控制逻辑通过基于与电磁可变压力安全阀的设定的释放压力和安全阀通过流量相关的输入信号来补偿每个电磁操作的可变压力释放阀的压力超限特性来进行上述计算， 并且输出到电磁可变泄压阀命令与由压力超驰特性的补偿产生的经调整的设定释放压力相关的指令信号。
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公开(公告)号：US07930970B2
公开(公告)日：2011-04-26
申请号：US11997176
申请日：2007-02-20
IPC分类号： F15B11/10
CPC分类号： E02F9/2296 , E02F3/963 , E02F9/2012 , E02F9/2228 , E02F9/2285 , E02F9/2292
摘要： A control unit for a work machine that allows automatically obtaining optimal operability even when the weight of a work arm in the work machine is changed. In a work machine where at least a part of a work arm to be operated by a fluid pressure actuator is provided so as to be replaceable, a control unit for a work machine includes: a pilot-operated control valve that controls the fluid pressure actuator; a proportional solenoid valve that pilot-controls the pilot-operated control valve by a pilot control pressure according to an electrical signal corresponding to a manual operation amount; a measuring means that measures a weight of at least the part of the work arm; and a controller that converts characteristics between the manual operation amount and the pilot control pressure of the proportional solenoid valve to characteristics according to the weight of the work arm measured by the measuring means.
摘要翻译： 即使在作业机械的工作臂的重量发生变化的情况下，能够自动获得最佳的操作性的作业机械的控制单元。 在工作机械中，由液压致动器操作的工作臂的至少一部分被设置为可更换的，作业机械的控制单元包括：先导操作控制阀，其控制流体压力致动器 ; 比例电磁阀，根据对应于手动操作量的电信号，通过先导控制压力先导控制先导操作的控制阀; 测量装置，其测量至少所述工作臂的所述部分的重量; 以及控制器，其将手动操作量和比例电磁阀的先导控制压力之间的特性转换为根据由测量装置测量的工作臂的重量的特性。
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公开(公告)号：US07926411B2
公开(公告)日：2011-04-19
申请号：US11997332
申请日：2007-02-20
IPC分类号： F15B11/00
CPC分类号： E02F9/2228 , E02F9/2025 , E02F9/226 , F15B13/0433 , F15B21/087 , F15B2211/6346 , Y10T137/86614 , Y10T137/87209
摘要： A valve control unit that prevents a decline in interlocking operation performance when pilot pressure control of a plurality of pilot-operated control valves is carried out by proportional solenoid valves. First and second proportional solenoid valves include a Common Operation Table of lever operation amount/boom-up pilot pressure characteristics and are inputted with a common boom-up lever operation amount. A third proportional solenoid valve also includes the Operation Table and is inputted with a stick-in lever operation amount common to the fourth proportional solenoid valve. The fourth proportional solenoid valve includes an Operation Table of lever operation amount/stick-in pilot pressure characteristics different from that of the first, second, and third proportional solenoid valves and is inputted with the stick-in lever operation amount common to the third proportional solenoid valve.
摘要翻译： 一种阀控制单元，其通过比例电磁阀执行多个先导控制阀的先导压力控制时防止联锁运转性能的下降。 第一和第二比例电磁阀包括杆操作量/动臂上升先导压力特性的公共操作表，并且输入共同的升降杆操作量。 第三比例电磁阀还包括操作台，并输入与第四比例电磁阀共用的卡入杆操作量。 第四比例电磁阀包括与第一，第二和第三比例电磁阀不同的杆操作量/粘入先导压力特性的操作表，并且输入与第三比例电磁阀共用的卡入杆操作量 电磁阀。
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公开(公告)号：US20090114298A1
公开(公告)日：2009-05-07
申请号：US11997332
申请日：2007-02-20
IPC分类号： F15B13/043
CPC分类号： E02F9/2228 , E02F9/2025 , E02F9/226 , F15B13/0433 , F15B21/087 , F15B2211/6346 , Y10T137/86614 , Y10T137/87209
摘要： A valve control unit that prevents a decline in interlocking operation performance when pilot pressure control of a plurality of pilot-operated control valves is carried out by proportional solenoid valves. First and second proportional solenoid valves include a Common Operation Table of lever operation amount/boom-up pilot pressure characteristics and are inputted with a common boom-up lever operation amount. A third proportional solenoid valve also includes the Operation Table and is inputted with a stick-in lever operation amount common to the fourth proportional solenoid valve. The fourth proportional solenoid valve includes an Operation Table of lever operation amount/stick-in pilot pressure characteristics different from that of the first, second, and third proportional solenoid valves and is inputted with the stick-in lever operation amount common to the third proportional solenoid valve.
摘要翻译： 一种阀控制单元，其通过比例电磁阀执行多个先导控制阀的先导压力控制时防止联锁运转性能的下降。 第一和第二比例电磁阀包括杆操作量/动臂上升先导压力特性的公共操作表，并且输入共同的升降杆操作量。 第三比例电磁阀还包括操作台，并输入与第四比例电磁阀共用的卡入杆操作量。 第四比例电磁阀包括与第一，第二和第三比例电磁阀不同的杆操作量/粘入先导压力特性的操作表，并且输入与第三比例电磁阀共用的卡入杆操作量 电磁阀。
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公开(公告)号：US20090090237A1
公开(公告)日：2009-04-09
申请号：US11997176
申请日：2007-02-20
IPC分类号： F15B13/06
CPC分类号： E02F9/2296 , E02F3/963 , E02F9/2012 , E02F9/2228 , E02F9/2285 , E02F9/2292
摘要： A control unit for a work machine that allows automatically obtaining optimal operability even when the weight of a work arm in the work machine is changed. In a work machine where at least a part of a work arm to be operated by a fluid pressure actuator is provided so as to be replaceable, a control unit for a work machine includes: a pilot-operated control valve that controls the fluid pressure actuator; a proportional solenoid valve that pilot-controls the pilot-operated control valve by a pilot control pressure according to an electrical signal corresponding to a manual operation amount; a measuring means that measures a weight of at least the part of the work arm; and a controller that converts characteristics between the manual operation amount and the pilot control pressure of the proportional solenoid valve to characteristics according to the weight of the work arm measured by the measuring means.
摘要翻译： 即使在作业机械的工作臂的重量发生变化的情况下，能够自动获得最佳的操作性的作业机械的控制单元。 在工作机械中，由液压致动器操作的工作臂的至少一部分被设置为可更换的，作业机械的控制单元包括：先导操作控制阀，其控制流体压力致动器 ; 比例电磁阀，根据对应于手动操作量的电信号，通过先导控制压力先导控制先导操作的控制阀; 测量装置，其测量至少所述工作臂的所述部分的重量; 以及控制器，其将手动操作量和比例电磁阀的先导控制压力之间的特性转换为根据由测量装置测量的工作臂的重量的特性。
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