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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：US20110105270A1
公开(公告)日：2011-05-05
申请号：US12915405
申请日：2010-10-29
申请人： Tetsuya MATSUOKA , Hiroyasu NISHIKAWA , Tooru NISHIDA , Hirofumi AKAHORI , Hideyuki IMAI , Tatsuhiko GOI
发明人： Tetsuya MATSUOKA , Hiroyasu NISHIKAWA , Tooru NISHIDA , Hirofumi AKAHORI , Hideyuki IMAI , Tatsuhiko GOI
IPC分类号： F16H1/28
CPC分类号： F16H1/2836 , F02C7/36 , F05D2260/40311 , F16H57/082 , Y02T50/671
摘要： A planetary gear reduction system has a sun gear, a plurality of planet gears, a ring gear, and a planet carrier. The planet carrier has a first plate supporting one ends of planet shafts supporting the planet gears, a second plate supporting the other ends of the planet shafts, and a cylindrical drum connecting the first and second plates. The first plate has first portions supporting the one ends of the planet shafts; second portions connecting the first plate to the drum, the first and second portions being provided alternately in a circumferential direction; first cutouts each defined between the neighboring first and second portions, the first cutouts each extending radially inwardly from a circumferential edge thereof to a position adjacent a circle passing centers of the planet shafts; and second cutouts each defined radially inward of the second portion and between the neighboring two first portions, the second cutouts each extending radially inwardly from a first region outside the circle and a second region inside the circle.
摘要翻译： 行星齿轮减速系统具有太阳齿轮，多个行星齿轮，环形齿轮和行星架。 行星架具有支撑支撑行星齿轮的行星轴的一端的第一板，支撑行星轴的另一端的第二板以及连接第一和第二板的圆筒形滚筒。 第一板具有支撑行星轴的一端的第一部分; 将第一板连接到滚筒的第二部分，第一和第二部分沿圆周方向交替设置; 每个限定在相邻的第一和第二部分之间的第一切口，第一切口各自从其圆周边缘径向向内延伸到与通过行星轴的中心的圆相邻的位置; 以及第二切口，每个切口限定在所述第二部分的径向内侧和相邻的两个第一部分之间，所述第二切口各自从所述圆周外的第一区域径向向内延伸，以及在所述圆内部的第二区域。
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公开(公告)号：US20100089045A1
公开(公告)日：2010-04-15
申请号：US12449824
申请日：2007-07-18
IPC分类号： F15B13/06
CPC分类号： E02F9/2228 , E02F9/2217 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B21/14 , F15B2211/20576 , F15B2211/3116 , F15B2211/3122 , F15B2211/329 , F15B2211/6316 , F15B2211/633 , F15B2211/6355 , F15B2211/7053 , F15B2211/761 , F15B2211/88
摘要： A hydraulic control circuit includes a hydraulic cylinder, a control valve, a recovery oil passage, a hydraulic pump, an engine rotation speed setting unit, a recovery control valve, and a controller that reduces an engine rotation speed to not more than a preset reduction control engine rotation speed when the load is lowered; and adjusts an increase or decrease in an opening amount of the recovery control valve in accordance with a level of the target rotation speed set by the engine rotation speed setting unit.
摘要翻译： 液压控制回路包括液压缸，控制阀，回收油通道，液压泵，发动机转速设定单元，回收控制阀以及将发动机转速降低到不超过预定的减速度的控制器 负载降低时控制发动机转速; 并且根据由发动机转速设定单元设定的目标转速的水平来调整恢复控制阀的打开量的增减。
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公开(公告)号：US08968148B2
公开(公告)日：2015-03-03
申请号：US13989329
申请日：2011-11-15
CPC分类号： F16H1/28 , F16H1/2818 , F16H57/082
摘要： Provided is a planetary gear reducer including: a sun gear fixed concentrically to a power input shaft; a plurality of planet gears meshing with the sun gear; a ring gear meshing with the planet gears; a planet carrier configured to support a plurality of planet shafts, each of which is a rotational axis of a corresponding one of the planet gear, and to output revolution of the plurality of planet gears as first power; and a cylindrical support connected to the ring gear, non-rotatable relative to the ring gear, and configured to output rotation of the ring gear as second power. The cylindrical support includes, at one part along the direction of a central axis, a flexible structure which is curved radially inward and has a V-shaped longitudinal section. This configuration improves rigidity and prevents misalignment without increasing the weight of the gear reducer.
摘要翻译： 提供一种行星齿轮减速器，其包括：与动力输入轴同心地固定的太阳齿轮; 与太阳齿轮啮合的多个行星齿轮; 与行星齿轮啮合的齿圈; 行星架，其被配置为支撑多个行星轴，每个行星轴是行星齿轮的相应一个的旋转轴线，并且输出多个行星齿轮的转数作为第一功率; 以及连接到所述齿圈的圆柱形支撑件，其相对于所述齿圈不能旋转，并且被配置为输出所述齿圈的旋转作为第二动力。 圆柱形支撑件在沿着中心轴线的方向的一部分上包括径向向内弯曲且具有V形纵向截面的柔性结构。 这种结构提高了刚性并且防止了不对准而不增加齿轮减速器的重量。
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公开(公告)号：US20130206121A1
公开(公告)日：2013-08-15
申请号：US13643460
申请日：2011-02-17
申请人： Hiroyasu Nishikawa
发明人： Hiroyasu Nishikawa
IPC分类号： F02M25/07
CPC分类号： F02M25/0754 , F02M26/13 , F02M26/21 , F02M26/41 , F02M26/47 , F02M26/57 , F02M37/0047
摘要： An engine includes an EGR apparatus which refluxes a portion of exhaust gas from an exhaust manifold to an intake manifold as EGR gas. A differential pressure sensor detects a differential pressure between intake pressure of the intake manifold and exhaust pressure in the exhaust manifold. The differential pressure sensor is mounted on a head cover which covers an upper portion of a cylinder head. An intake pressure taking-out passage which is in communication with the intake manifold is formed in the cylinder head. An intake pressure introducing passage which is connected to the differential pressure sensor is formed in the head cover. The intake pressure taking-out passage and the intake pressure introducing passage are in communication with each other.
摘要翻译： 发动机包括将废气的一部分从排气歧管返回到作为EGR气体的进气歧管的EGR装置。 差压传感器检测进气歧管的进气压力与排气歧管中的排气压力之间的差压。 差压传感器安装在覆盖气缸盖的上部的头罩上。 在气缸盖中形成有与进气歧管连通的进气压力取出通道。 在头罩中形成有与压差传感器连接的进气压力导入通路。 进气压力取出通道和进气压力引入通道彼此连通。
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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：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：US20090159143A1
公开(公告)日：2009-06-25
申请号：US12065112
申请日：2007-02-20
申请人： Hiroyasu Nishikawa , Sei Shimahara
发明人： Hiroyasu Nishikawa , Sei Shimahara
IPC分类号： F15B13/043
CPC分类号： E02F9/2235 , E02F9/2228 , E02F9/2242 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/055 , F15B11/16 , F15B11/17 , F15B2211/20546 , F15B2211/20576 , F15B2211/329 , F15B2211/40515 , F15B2211/45 , F15B2211/6313 , F15B2211/6355 , F15B2211/7142 , F15B2211/78 , Y10T137/86614 , Y10T137/87209
摘要： A fluid pressure circuit that can, in either case where a first actuator that is fed from a first pump or a second actuator that is fed from a second pump is operated, by allowing feeding of the hydraulic fluid to a specific actuator from either the first or second pump, improve interlockability with the specific actuator. A control valve is incorporated with a plurality of first-group spools fed from a drive pump and a plurality of second-group spools fed from an idle pump. A solenoid selector valve unit switches a pilot line of a second-group tool controlling spool to a communicating state at the time of detection of a spool operation by a first pressure switch and switches a pilot line of a first-group tool controlling spool to a communicating state at the time of detection of a spool operation by a second pressure switch.
摘要翻译： 一种流体压力回路，在从第一泵或第二致动器进给的第一致动器从第二泵进给的任一种情况下都可以通过允许液压流体从第一泵 或第二泵，提高与特定致动器的互锁性。 控制阀结合有从驱动泵供给的多个第一组卷轴和从空转泵进给的多个第二组卷轴。 电磁阀选择阀单元在第一压力开关检测到阀芯操作时将第二组工具控制阀芯的控制管线切换到连通状态，并将第一组工具控制阀芯的先导管线切换到 在通过第二压力开关检测线轴操作时的通信状态。
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公开(公告)号：US06601877B2
公开(公告)日：2003-08-05
申请号：US09973052
申请日：2001-10-10
IPC分类号： F16L300
CPC分类号： E02F3/3627 , E02F3/3618 , E02F3/3663 , E02F9/2271 , E02F9/2275 , F16L35/00
摘要： A piping structure of a working machine, which prevents damage to the hoses that are so arranged as can be flexibly bent on the working machine. The piping structure of a working machine comprises a guide cylinder in which is slidably inserted an intermediate portion of hose to define the bending position of the hose.
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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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