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    • 1. 发明专利
    • Construction machine
    • 建筑机械
    • JP2013053740A
    • 2013-03-21
    • JP2011194404
    • 2011-09-06
    • Sumitomo (Shi) Construction Machinery Co Ltd住友建機株式会社
    • HASHIMOTO HIROFUMI
    • F15B11/028E02F9/22
    • PROBLEM TO BE SOLVED: To provide a construction machine enabling an excavation attachment to be operated as intended by an operator while avoiding useless energy consumption resulting from a meter out throttle.SOLUTION: The construction machine includes an arm closing pilot pressure sensor 17A, a boom hoisting pilot pressure sensor 17B, a control execution determining part 300, and a relief pressure control part 301 for controlling the relief pressures of variable relief valves 20B, 20C which are arranged in at least one of a first oil path linking a rod side oil chamber of a boom cylinder 7 to a boom flow control valve 156 and a second oil path linking a bucket cylinder 9 to the meter out throttle 154A. The control execution determining part 300 determines that control starting conditions are established when an arm operation amount in the closing direction is in an upper limit side operation region and a boom operation amount in the hoisting direction is in an intermediate operation region, and then the relief pressure control part 301 changes the setting of the relief pressures of the variable relief valves 20B, 20C.
    • 要解决的问题:提供一种能够使挖掘附件按照操作者的意图进行操作的施工机械,同时避免由出口节流阀引起的无用的能量消耗。 解决方案:施工机械包括臂关闭先导压力传感器17A,起重臂起重先导压力传感器17B,控制执行确定部分300和用于控制可变安全阀20B的溢流压力的安全压力控制部分301, 20C,其配置在将动臂缸7的杆侧油室与吊杆流量控制阀156连接的第一油路中的至少一个以及将铲斗缸9连接到出口节流阀154A的第二油路。 控制执行判定部300判断为关闭方向上的手臂操作量为上限侧操作区域且起重方向上的动臂操作量为中间动作区域时的控制开始条件, 压力控制部301改变可变安全阀20B,20C的溢流压力的设定。 版权所有(C)2013,JPO&INPIT
    • 2. 发明专利
    • Construction machine
    • 建筑机械
    • JP2012215016A
    • 2012-11-08
    • JP2011080730
    • 2011-03-31
    • Sumitomo (Shi) Construction Machinery Co Ltd住友建機株式会社
    • HASHIMOTO HIROFUMI
    • E02F9/22F15B11/02F15B11/028
    • PROBLEM TO BE SOLVED: To provide a construction machine including a hydraulic circuit which allows utilization of pressure oil flowing out from a bottom side oil chamber of a boom cylinder for drive of an arm.SOLUTION: The construction machine according to this invention comprises a control execution determination part 300 for determining whether or not a control start condition is established, and a merge control part 301 capable of controlling displacement in a lowering side position direction of a second boom flow rate control valve 157 independent of a boom operation amount in a lowering direction. A lowering side position of the second boom flow rate control valve 157 has an oil passage for merging pressure oil flowing out from a bottom side oil chamber of a boom cylinder 7 to a center bypass oil passage 40L corresponding to a displacement amount in the lowering side position direction of the second boom flow rate control valve 157. When the boom operation amount in the lowering direction is in an intermediate operation area and an arm operation amount in an opening direction is in an upper limit side operation area, the control execution determination part 300 determines that the control start condition is established, and the merge control part 301 displaces the second boom flow rate control valve to the lowering side position.
    • 要解决的问题:提供一种包括液压回路的施工机械,其能够利用从用于驱动臂的动臂缸的底侧油室流出的压力油。 解决方案:根据本发明的施工机械包括用于确定是否建立控制开始条件的控制执行确定部分300和能够控制第二个控制开始条件的下降侧位置方向上的位移的合并控制部分301 悬架流量控制阀157与下降方向上的动臂操作量无关。 第二起重臂流量控制阀157的下降侧位置具有用于将从动臂缸7的底侧油室流出的压力油合流到与下降侧的位移量对应的中心旁通油路40L的油路 第二起重臂流量控制阀157的位置方向。当下降方向的动臂操作量处于中间操作区域并且打开方向上的手臂操作量处于上限侧操作区域时,控制执行确定部 300确定控制开始条件成立,并且合并控制部301将第二起重臂流量控制阀移位到下降侧位置。 版权所有(C)2013,JPO&INPIT
    • 3. 发明专利
    • Monitoring device for construction machine
    • 建筑机械监控装置
    • JP2011137345A
    • 2011-07-14
    • JP2009298883
    • 2009-12-28
    • Sumitomo (Shi) Construction Machinery Co Ltd住友建機株式会社
    • HASHIMOTO HIROFUMI
    • E02F9/26
    • PROBLEM TO BE SOLVED: To provide a monitoring device for a construction machine, configured so that a display mode can be switched according to the level of an operator's familiarity or skillfulness.
      SOLUTION: The monitoring device for construction machine includes a key switch 21; a display 18; an operation pattern switching device 22 for switching the motions of operation levers 17a, 17b and the motion of a working device 13 operated by operation levers 17a, 17b; and an arithmetic controller 20 for outputting data for displaying an operation pattern selected by the operation pattern switching device 22 on a display screen 18a of the display 18. The arithmetic controller 20 is configured so that a first display mode for displaying operation pattern information related to the operation pattern preferentially on the display screen 18a of the display 18 and a second display mode for displaying non-operation pattern information other than the information related to the operation pattern on the display screen 18a of the display 18 can be switched to each other.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种用于建筑机械的监控装置,其被配置为可以根据操作者的熟练程度或熟练程度的水平切换显示模式。 解决方案:施工机械的监控装置包括钥匙开关21; 显示器18; 用于切换操作杆17a,17b的运动和由操作杆17a,17b操作的作业装置13的运动的操作模式切换装置22; 以及运算控制器20,用于输出用于在显示器18的显示屏幕18a上显示由操作模式切换装置22选择的操作模式的数据。运算控制器20被配置为使得第一显示模式用于显示与 优先在显示器18的显示屏幕18a上的操作模式和用于在显示器18的显示屏幕18a上显示与操作模式相关的信息以外的非操作模式信息的第二显示模式可以彼此切换。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Construction machine
    • 建筑机械
    • JP2013053498A
    • 2013-03-21
    • JP2011194405
    • 2011-09-06
    • Sumitomo (Shi) Construction Machinery Co Ltd住友建機株式会社
    • HASHIMOTO HIROFUMI
    • E02F9/22F15B11/00F15B11/02F15B21/14
    • PROBLEM TO BE SOLVED: To provide a construction machine equipped with a hydraulic circuit which enables pressure oil flowing out of a bottom side oil chamber of a boom cylinder to be utilized for driving an arm.SOLUTION: A construction machine includes a control device 30 which has a control execution determining part 300 for determining whether control starting conditions are established or not, an interflow control part 301 for controlling the inflow of pressure oil flowing out of a bottom side oil chamber of a boom cylinder 7 into an arm cylinder 8, and a discharge amount reducing part 302 for controlling the discharge amount of a main pump 12L. When the control execution determining part 300 determines that a boom operation amount in a lowering direction is in a predetermined intermediate operation region and an arm operation amount in an opening direction is in a predetermined upper limit side operation region, the control device 30 uses the interflow control part 301 for allowing the pressure oil flowing out of the bottom side oil chamber of the boom cylinder 7 to flow into a rod side oil chamber of the arm cylinder 8 and uses the discharge amount reducing part 302 for suppressing the discharge amount of the main pump 12L.
    • 解决的问题:提供一种配备有液压回路的施工机械,其能够使压力油从用于驱动臂的动臂缸的底侧油室流出。 解决方案:施工机械包括控制装置30,控制装置30具有用于确定控制启动条件是否成立的控制执行确定部分300,用于控制从底侧流出的压力油流入的流动控制部分301 动臂缸7的油室进入斗缸8,以及用于控制主泵12L的排出量的排出量减少部302。 当控制执行确定部件300确定下降方向的吊杆操作量处于预定的中间操作区域中并且在打开方向上的手臂操作量处于预定的上限侧操作区域时,控制装置30使用交错 用于允许从动臂缸7的底侧油室流出的压力油流入臂缸8的杆侧油室的控制部301,并且使用排出量减少部302来抑制主缸的排出量 泵12L。 版权所有(C)2013,JPO&INPIT
    • 5. 发明专利
    • Hydraulic circuit for construction machine
    • 建筑机械液压回路
    • JP2011144587A
    • 2011-07-28
    • JP2010007465
    • 2010-01-15
    • Sumitomo (Shi) Construction Machinery Co Ltd住友建機株式会社
    • HASHIMOTO HIROFUMI
    • E02F9/22F15B11/00F15B11/16
    • PROBLEM TO BE SOLVED: To provide a hydraulic circuit for a construction machine that can appropriately reduce, according to a working condition, a passing pressure loss until return oil from the bottom side of a hydraulic cylinder is discharged to a tank.
      SOLUTION: The hydraulic circuit for the construction machine includes a discharge selector valve 22 connected to a hydraulic pump 12 in tandem with a selector valve 16, and having a discharge passage 22c for discharging the return oil from the bottom side of the hydraulic cylinder 80 to the tank T and switching the flow rate of the return oil returned to the tank T through the discharge passage 22c, and a working state determining means 30 determining whether a working state is a specific working state or not to accelerate the discharge of the return oil from the bottom side of the hydraulic cylinder 80. When determining the specific working state by the working state determining means 30, the discharge selector valve 22 is switched so that the discharge passage 22c communicates with the bottom side of the hydraulic cylinder 80, and at least part of the return oil from the bottom side of the hydraulic cylinder 80 is returned to the tank T through the discharge passage 22c of the discharge selector valve 22.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种用于施工机械的液压回路,其能够根据工作条件适当地减少通过压力损失,直到来自液压缸的底侧的返回油被排出到罐中。

      解决方案:施工机械的液压回路包括与选择阀16串联连接到液压泵12的排气选择阀22,并且具有用于从液压的底侧排出回油的排出通道22c 缸体80通过排出通道22c切换返回到罐T的返回油的流量;以及工作状态判定单元30,判断工作状态是否为特定工作状态,以加速排放 来自液压缸80的底侧的返回油。当通过工作状态确定装置30确定特定工作状态时,切换排气切换阀22,使得排出通道22c与液压缸80的底侧连通 并且来自液压缸80的底侧的返回油的至少一部分通过dis的排出通道22c返回到箱T 充电选择阀22.版权所有(C)2011,JPO&INPIT

    • 6. 发明专利
    • Hydraulic circuit of construction machinery
    • 建筑机械液压回路
    • JP2010229681A
    • 2010-10-14
    • JP2009077118
    • 2009-03-26
    • Sumitomo (Shi) Construction Machinery Co Ltd住友建機株式会社
    • HASHIMOTO HIROFUMI
    • E02F9/22F15B11/16
    • PROBLEM TO BE SOLVED: To provide a hydraulic circuit of construction machinery, which hardly deteriorates operability even when a boom and an arm are concurrently operated, and can make a loop loss smaller than ever. SOLUTION: In this hydraulic circuit of the construction machinery, a detour bypass oil passage 22, which bypass-connects a passage for supplying pressure oil to a switching valve 18 for a boom and a passage for supplying pressure oil to a switching valve 20 for confluence, is provided; and the detour bypass oil passage 22 is provided with an auxiliary switching valve 24 capable of adjusting the degree of opening. The degree of the opening of the auxiliary switching valve 24 is controlled depending on a magnitude relation between a command value for making a switching valve 26 for an arm make an arm closing motion, and a command value for making the switching valve 18 for the boom make a boom hoisting motion. The degree of the opening of the auxiliary switching valve 24 is controlled to become higher, as the command value for making the boom hoisting motion become small relative to the command value for making the arm closing motion. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了提供一种工程机械的液压回路,即使在动臂和臂同时动作的情况下,也难以使操作性劣化,并且能够使循环损失比以往更小。 解决方案:在该工程机械的液压回路中,绕道旁通油路22旁路连接用于将动力油供给到用于动臂的切换阀18的通路,以及用于向切换阀供给压力油的通路 提供20个汇合 迂回旁路油通路22设置有能够调节开度的辅助切换阀24。 辅助切换阀24的开度根据制动用于手臂切换阀的切换阀26的指令值和用于制动用于动臂的切换阀18的指令值之间的大小关系来控制 起重吊装动作。 辅助切换阀24的打开程度被控制为变得更高,因为使起重臂起重运动的指令值相对于用于使臂闭合运动的指令值变小。 版权所有(C)2011,JPO&INPIT
    • 7. 发明专利
    • Hydraulic control system for working machine
    • 工作机械液压控制系统
    • JP2010210072A
    • 2010-09-24
    • JP2009060058
    • 2009-03-12
    • Sumitomo (Shi) Construction Machinery Co Ltd住友建機株式会社
    • HASHIMOTO HIROFUMI
    • F15B11/024E02F9/22
    • PROBLEM TO BE SOLVED: To provide a hydraulic control system for a working machine making the efficiency of recycling return fluid better than before determining the percentage of the recycled return fluid and the timing of recycling regardless of the supply and discharge of hydraulic fluid to and from a hydraulic actuator. SOLUTION: The hydraulic control system includes a first control valve 14 for controlling the supply and discharge of hydraulic fluid to and from the hydraulic actuator 20, and a second control valve 16 provided in the passage for hydraulic fluid between the hydraulic actuator 20 and the first control valve 14 and having a recycling circuit 18 for recycling the return fluid from the hydraulic actuator 20. The second control valve 16 can operate independently of the first control valve 14. The adjustment of at least either of the percentage of recycled the return fluid and the timing of recycling is not related to the control of the supply and discharge of the hydraulic fluid by the first control valve 14. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种用于工作机械的液压控制系统,使回收流体的回收流体的效率比确定再循环回流流体的百分比和循环的时间更好,而不管液压流体的供应和排放如何 来自液压致动器。 解决方案:液压控制系统包括用于控制向液压致动器20和从液压致动器20供给和排出液压流体的第一控制阀14以及设置在液压致动器20之间的用于液压流体的通道中的第二控制阀16 和第一控制阀14,并且具有用于使来自液压致动器20的返回流体再循环的再循环回路18.第二控制阀16可以独立于第一控制阀14进​​行操作。对回收的循环的百分比中的至少一个进行调整 回流液和再循环的时间与第一控制阀14对液压油的供应和排放的控制无关。版权所有(C)2010,JPO&INPIT
    • 8. 发明专利
    • Hydraulic circuit for construction machine and control device therefor
    • 用于建筑机械的液压回路及其控制装置
    • JP2014009794A
    • 2014-01-20
    • JP2012148928
    • 2012-07-02
    • Sumitomo (Shi) Construction Machinery Co Ltd住友建機株式会社
    • HASHIMOTO HIROFUMI
    • F15B11/02E02F9/22F15B11/17
    • E02F9/2282E02F9/2242E02F9/2267E02F9/2292F15B11/16F15B11/17F15B2211/20546F15B2211/20576F15B2211/30595F15B2211/31517F15B2211/327F15B2211/41554F15B2211/45F15B2211/6346F15B2211/6652F15B2211/6654F15B2211/7142
    • PROBLEM TO BE SOLVED: To provide a hydraulic circuit for a construction machine or a control device therefor in which an inflow direction of a hydraulic solution to be confluent can be controlled by using a confluence circuit.SOLUTION: A hydraulic circuit 20 for a construction machine comprises a plurality of center bypass passages RC to which hydraulic solutions discharged from a plurality of hydraulic pumps P are supplied, respectively. The hydraulic circuit 20 comprises: a direction control valve group disposed in the center bypass passage in a tandem manner; a bleed-off valve Vbo disposed in a downstream center bypass passage in the direction control valve group; and a confluence circuit in which a hydraulic solution supplied to one of the plurality of center bypass passages is made confluent to the other center bypass passage. A direction control valve includes: a first internal passage RV1 through which the supplied hydraulic solution is caused to flow out to the center bypass passage; and a second internal passage RV2 through which the hydraulic solution supplied to the direction control valve is supplied to a hydraulic actuator. The confluence circuit includes a confluent direction control valve Vj which controls an inflow direction of the hydraulic solution to be confluent.
    • 要解决的问题:提供一种用于施工机械或其控制装置的液压回路,其中可以通过使用汇流回路来控制要汇合的液压溶液的流入方向。解决方案:一种用于施工机械的液压回路20 包括分别从多个液压泵P排出的液压溶液供给的多个中心旁通路RC。 液压回路20包括:以串联方式设置在中心旁通通道中的方向控制阀组; 设置在方向控制阀组中的下游中心旁路通路中的排气阀Vbo; 以及汇流回路,其中供给到多个中心旁通通道中的一个的液压溶液与另一个中心旁通通道汇合。 方向控制阀包括:第一内部通道RV1,供应的液压溶液通过该第一内部通道RV1流出到中心旁通通道; 以及供给方向控制阀的液压溶液通过该第二内部通道RV2供给到液压致动器。 汇流回路包括汇流方向控制阀Vj,该汇流方向控制阀Vj控制待汇合的液压溶液的流入方向。