Method and system for managing construction machine, and arithmetic processing apparatus
    51.
    发明授权
    Method and system for managing construction machine, and arithmetic processing apparatus 有权
    管理施工机械的方法和系统以及运算处理装置

    公开(公告)号:US06449884B1

    公开(公告)日:2002-09-17

    申请号:US09979078

    申请日:2001-11-16

    IPC分类号: E02F920

    摘要: Hydraulic excavators 1 working in fields each include a controller 2, and an operating time is measured for each of an engine 32, a front 15, a swing body 13 and a track body 12. The measured data is stored in a memory of the controller 2, transferred to a base station computer 3 through satellite communication, an FD, etc., and stored in a database 100 of the base station computer 3. In the base station computer 3, the data stored in the database 100 is read out for each of the hydraulic excavators to obtain a value of an index (e.g., a travel ratio) regarding the state of use of a particular one of the hydraulic excavators and a distribution of the number of operated hydraulic excavators of the same model as the particular hydraulic excavator with respect to the index. The index value and that distribution are compared with each other to determine whether the particular hydraulic excavator is an optimum model. It is therefore possible to make an evaluation after confirming how a customer employs a machine, and to give an advice about the optimum model depending on the state of use of the machines.

    摘要翻译: 在各个领域中工作的液压挖掘机1包括控制器2,并且测量发动机32,前15,摇摆体13和轨道体12中的每一个的操作时间。测量数据存储在控制器的存储器中 2,通过卫星通信,FD等传送到基站计算机3,并存储在基站计算机3的数据库100中。在基站计算机3中,读出存储在数据库100中的数据, 每个液压挖掘机获得关于特定一个液压挖掘机的使用状态的指标值(例如,行驶比率)和与特定液压挖掘机相同型号的操作液压挖掘机的数量的分布 挖掘机相对于索引。 将指标值和分布进行比较,以确定特定液压挖掘机是否是最佳模型。 因此,可以在确认客户如何使用机器之后进行评估,并且根据机器的使用状态给出关于最佳模型的建议。

    Hydraulic control valve apparatus and hydraulic drive system
    52.
    发明授权
    Hydraulic control valve apparatus and hydraulic drive system 失效
    液压控制阀装置和液压驱动系统

    公开(公告)号:US5433076A

    公开(公告)日:1995-07-18

    申请号:US244038

    申请日:1994-05-16

    CPC分类号: E02F9/2225 F15B13/0417

    摘要: A hydraulic control valve apparatus including a flow control valve having a pair of variable throttles, a feeder passage, a pair of load passages, directional control valve devices comprise a seat valve having a seat valve body movably disposed in a housing to form an auxiliary variable throttle in the feeder passage, and a control variable throttle (33) formed in the seat valve body for changing an opening area in accordance with an amount of movement of the seat valve body; (b) a pilot line (24, 29-31, 35-37) for communicating a portion (7C) of the feeder passage upstream of the auxiliary variable throttle with a downstream portion (7A, 7B) of the feeder passage through the control variable throttle to determine the amount of movement of the seat valve body in accordance with a flow rate of the hydraulic fluid passing through the pilot line; and (c) pilot flow control (400; 401; 403; 405; 406; 407; 408) having a pilot variable throttle (45) disposed in the pilot line and input (800; 52-59; 159, 54-59; 231A, 231B, 251, 252) for receiving a flow restricting signal whereby an opening area of the pilot variable throttle is changed in accordance with the received flow restricting signal to control a flow rate of the hydraulic fluid passing through the pilot line.

    摘要翻译: PCT No.PCT / JP93 / 01558 Sec。 371日期1994年5月16日 102(e)日期1994年5月16日PCT提交1993年10月28日PCT公布。 公开号WO94 / 10456 日期:1994年5月11日。一种液压控制阀装置,包括具有一对可变节流阀的流量控制阀,进料通道,一对负载通道,方向控制阀装置,其包括座阀,该阀座具有可移动地设置在 在所述供给通道中形成辅助可变节流阀,以及形成在所述座阀主体中的控制可变节流阀(33),用于根据所述座阀主体的移动量来改变开口面积; (b)用于将辅助可变节流阀上游的供料通道的一部分(7C)与馈送通道的下游部分(7A,7B)通过控制通道的控制线(24,29-31,35-37) 可变节气门,以根据通过先导管线的液压流体的流量来确定座阀体的运动量; 以及(c)具有设置在所述先导管线中的先导可变节流阀(45)的输入(800; 52-59; 159,54-59;和(c))先导流量控制(400; 401; 403; 405; 231A,231B,251,252),用于接收流量限制信号,由此根据所接收的流量限制信号改变先导可变节流阀的开口面积,以控制通过先导管线的液压流体的流量。

    Hydraulic circuit system for working machine
    53.
    发明授权
    Hydraulic circuit system for working machine 失效
    液压电机系统

    公开(公告)号:US5101629A

    公开(公告)日:1992-04-07

    申请号:US499457

    申请日:1990-07-02

    IPC分类号: E02F9/22 F15B11/16

    摘要: A hydraulic circuit system comprising a hydraulic-fluid supply source, at least one hydraulic actuator operated by hydraulic fluid from the hydraulic-fluid supply source, a flow control valve for controlling the flow of the hydraulic fluid to be supplied to the actuator and a pressure control element for maintaining the differential pressure across the flow control valve at a predetermined value. The system according to the present invention comprises: first element for selectively creating, from the load pressure of the actuator and the supply pressure of the hydraulic-fluid supply source, either the pressure which is the same as the load pressure or the intermediate pressure which is higher than the load pressure but lower than the supply pressure and transmitting it as the control pressure; second element for operating said first element for instructing to select either the pressure which is the same as the load pressure or the intermediate pressure; and connection element for introducing the control pressure to the pressure control element. The pressure control element maintains the above-described differential pressure at the predetermined value when the level of the control pressure is the same as that of the load pressure, while it makes the level of the differential pressure lower than the predetermined value when the control pressure is the intermediate pressure.

    摘要翻译: PCT No.PCT / JP90 / 00193 Sec。 371日期1990年7月2日 102(e)日期1990年7月2日PCT提交1990年2月19日PCT公布。 出版物WO90 / 0952800 日期1990年8月23日。一种液压回路系统,包括液压流体供应源,至少一个由液压流体供应源的液压流体操作的液压致动器,用于控制液压流体流动的流量控制阀 供应到致动器和用于将流量控制阀两端的差压保持在预定值的压力控制元件。 根据本发明的系统包括:第一元件,用于根据致动器的负载压力和液压流体供应源的供给压力选择性地产生与负载压力或中间压力相同的压力, 高于负载压力,但低于供给压力,并将其作为控制压力传递; 用于操作所述第一元件用于指示选择与所述负载压力或中间压力相同的压力的第二元件; 以及用于将控制压力引导到压力控制元件的连接元件。 当控制压力的水平与负载压力的水平相同时,压力控制元件将上述压差保持在预定值,同时当压力控制元件的控制压力 是中间压力。

    Construction machine dual-dump hydraulic circuit with piloted arm-boom
cylinder supply priority switching valves
    55.
    发明授权
    Construction machine dual-dump hydraulic circuit with piloted arm-boom cylinder supply priority switching valves 失效
    施工机械双倾液压回路采用引导臂臂液压缸提供优先切换阀

    公开(公告)号:US4875337A

    公开(公告)日:1989-10-24

    申请号:US101427

    申请日:1987-09-28

    IPC分类号: F15B11/17 E02F9/22 F15B11/16

    摘要: A hydraulic circuit for a construction machine which operates an actuator for working machine simultaneously with an actuator for working element without degrading the operation of the actuator for working machine. The hydraulic circuit comprises a first hydraulic pump, a first directional control valve connected to the first hydraulic pump and controlling an operation of the working machine actuator, a third directional control valve controlling an operation of the working element actuator, a second directional control valve connected to a second hydraulic pump, a first pilot operating device for controlling an operation of the first directional control valve and a second pilot operating device for controlling an operation of the third directional control valve. The hydraulic circuit further comprises a first hydraulic fluid joining device for providing hydraulic fluid of the second hydraulic pump to the input side of third directional control valve, a second hydraulic fluid joining device for supplying the hydraulic fluid of the second hydraulic pump to the input side of the first directional control valve, and a priority switching device for preventing, in response to a signal of the first pilot operating device, the signal of the second pilot operating device from being applied to the second directional control valve.

    Pipe breakage control valve device
    57.
    发明授权
    Pipe breakage control valve device 有权
    管道破损控制阀装置

    公开(公告)号:US06691510B2

    公开(公告)日:2004-02-17

    申请号:US10018530

    申请日:2001-12-20

    IPC分类号: F15B11042

    摘要: A hydraulic drive system includes a hose rupture control valve unit 200 having a poppet valve member 5 serving as a main valve for opening and closing communication between a cylinder connection chamber 8 and a hose connection chamber 9, a spool valve member 6 disposed in pilot passages 15a, 15b connecting a back pressure chamber 10 and the hose connection chamber 9 of the poppet valve member 5. The spool valve member is operated by a pilot pressure supplied as an external signal and operates the poppet valve member 5, and a small relief valve 7 having the function of an overload relief valve. A check valve 39 is disposed in the pilot passage 15b for cutting off a flow of the hydraulic fluid from the hose connection chamber 9 to the back pressure chamber 10. A hose rupture control valve unit 200 comprises a poppet valve member 5 serving as a main valve for opening and closing communication between a cylinder connection chamber 8 and a hose connection chamber 9, a spool valve member 6 disposed in pilot passages 15a, 15b connecting a back pressure chamber 10 and the hose connection chamber 9 of the poppet valve member 5, the spool valve member being operated by a pilot pressure supplied as an external signal and operating the poppet valve member 5, and a small relief valve 7 having the function of an overload relief valve. The valve unit further comprises a check valve 39 disposed in the pilot passage 15b for cutting off a flow of the hydraulic fluid from the hose connection chamber 9 to the back pressure chamber 10.

    摘要翻译: 液压驱动系统包括软管破裂控制阀单元200,其具有作为用于打开和关闭气缸连接室8和软管连接室9之间的连通的主阀的提升阀构件5,设置在引导通道中的滑阀构件6 15a,15b连接提升阀构件5的背压室10和软管连接室9.滑阀构件通过作为外部信号提供的先导压力操作,并且操作提升阀构件5和小的安全阀 具有过载溢流阀的功能。 止回阀39设置在先导通道15b中,用于切断液压流体从软管连接室9到背压室10的流动。软管破裂控制阀单元200包括作为主体的提升阀构件5 用于打开和关闭气缸连接室8和软管连接室9之间的连通的阀,设置在连接背压室10和提升阀构件5的软管连接室9的先导通道15a,15b中的滑阀构件6, 滑阀构件由作为外部信号提供的先导压力操作并操作提升阀构件5,以及具有过载溢流阀功能的小型安全阀7。 阀单元还包括设置在先导通道15b中的止回阀39,用于切断液压流体从软管连接室9到背压室10的流动。

    Hose rupture control valve unit
    60.
    发明授权
    Hose rupture control valve unit 失效
    软管破裂控制阀单元

    公开(公告)号:US06241212B1

    公开(公告)日:2001-06-05

    申请号:US09294431

    申请日:1999-04-20

    IPC分类号: F16K1720

    摘要: A hose rupture control valve unit includes a housing provided with two input/output ports. One input/output port is directly attached to a bottom port of a hydraulic cylinder, and the other input/output port is connected to one of actuator ports of a control valve via an actuator line. Within the housing, there are provided a poppet valve body serving as a main valve, a spool valve body serving as a pilot valve which is operated with a pilot pressure supplied as an external signal from a manual pilot valve, thereby operating the poppet valve body, and a small spool having the function of an overload relief valve. The above construction reduces the number of components arranged in a flow passage through which a hydraulic fluid passes at a large flow rate, and hence a pressure loss. A further reduction in overall size and production cost of the valve unit is achieved.

    摘要翻译: 软管断裂控制阀单元包括具有两个输入/输出端口的壳体。 一个输入/输出端口直接连接到液压缸的底部端口,另一个输入/输出端口经由致动器线路连接到控制阀的致动器端口中的一个。 在壳体内设置有作为主阀的提升阀体,作为先导阀的滑阀体,其以从手动先导阀作为外部信号提供的先导压力动作,从而操作提升阀体 以及具有过载溢流阀功能的小型阀芯。 上述结构减少了设置在液压流体以大流量通过的流动通道中的部件的数量,并因此减小了压力损失。 实现阀单元的总体尺寸和生产成本的进一步减小。