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公开(公告)号：US5365737A
公开(公告)日：1994-11-22
申请号：US168720
申请日：1993-12-16
CPC分类号： E02F9/2221
摘要： Hydraulically-operated equipment such as travelling equipment or working equipment for use in construction machinery such as a power shovel, shoveldozer and bulldozer. The hydraulically-operated equipment comprises a hydraulic driving mechanism actuated by hydraulic pressure, a hydraulic pressure supplying device for supplying hydraulic pressure to a hydraulic pipeline system for the hydraulic driving mechanism and a controller for controlling the hydraulic pressure supplying device such that the supplying rate at which hydraulic pressure is supplied to the hydraulic pipeline system according to the supply of hydraulic pressure is decreased in a specified period after a dead zone period in which hydraulic pressure starts to rise. This arrangement prevents an operational lag in the hydraulic driving mechanism as well as a shock at the time of start-up and shut-down.
摘要翻译： 液压操作设备，如用于工程机械如行走设备或工作设备，如铲铲，推土机和推土机。 液压操作设备包括由液压驱动的液压驱动机构，用于向液压驱动机构的液压管路系统供给液压的液压供给装置和控制液压供给装置的控制装置， 在液压开始上升的死区期间之后的规定时间内，根据液压供给向液压管路系统供给的液压降低。 这种布置防止液压驱动机构的运行滞后以及启动和停机时的冲击。
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公开(公告)号：US5274557A
公开(公告)日：1993-12-28
申请号：US720502
申请日：1991-07-29
CPC分类号： E02F3/438 , E02F9/2296
摘要： A teaching and playback method for a work machine that is applicable to construction equipment such as a hydraulic excavator to automatize operation. Data on the operator's operation of work machine actuators is stored, and the stored data is reproduced so that the same operation as that by the operator is automatically performed. The method is adapted to effect exactly the same operation as what has been taught even when, during playback, the load on the actuators has varied from the level applied during the teaching. For this purpose, the pump discharge amount and the amounts of flow supplied to the actuators which are present during the teaching are stored. During playback, when the load has varied, and the pump discharge has changed, the engine output is controlled in such a manner that the actual pump discharge becomes equal to the amount stored during the teaching. When the flows supplied to the actuators have changed, the flow control valve provided in an inflow circuit is controlled in such a manner that the actual flows become equal to the amounts stored during the teaching. Thus, even when the load during playback has varied from the level during the teaching, the actuators can operate exactly as taught, without involving a discrepancy in the locus of operation.
摘要翻译： PCT No.PCT / JP89 / 01270 Sec。 371日期1991年7月29日 102（e）日期1991年7月29日PCT 1989年12月18日PCT PCT。 出版物WO90 / 07032 日期：1990年6月28日。一种适用于液压挖掘机等施工设备自动化操作的作业机械的教学播放方法。 存储有关作业机械执行器的操作者的操作的数据，并且再现存储的数据，从而自动执行与操作者相同的操作。 该方法适于实现与所教导的完全相同的操作，即使在播放期间，致动器上的负载与在教学期间施加的水平不同。 为此，存储泵排出量和供给到执行器期间的流量。 在重放期间，当负载变化并且泵排放改变时，发动机输出被控制为使得实际的泵排出量等于在教学期间存储的量。 当提供给致动器的流动已经改变时，设置在流入回路中的流量控制阀被控制为使得实际流量变得等于在教学期间存储的量。 因此，即使在回放期间的负载与教学期间的水平不同，致动器可以如所教导的那样精确地操作，而不涉及操作轨迹的差异。
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公开(公告)号：US5359517A
公开(公告)日：1994-10-25
申请号：US853716
申请日：1992-06-05
申请人： Yukio Moriya , Fujitoshi Takamura , Takumi Onoda
发明人： Yukio Moriya , Fujitoshi Takamura , Takumi Onoda
CPC分类号： E02F3/438
摘要： An operator's actions for achieving a desired operation of a machine's actuator can be memorized in a teaching mode and the memorized information can be used for automatically reproducing the desired operation in a play back mode, to alleviate the operator's burden. A failure in the play back mode caused by the difference in the conditions under which the play back mode and the teaching mode are conducted can be eliminated, and the operation can be allowed to be continued in the manual mode even if a failure occurs in an automated operation control system. In order to achieve these, when a correction operation by the operator is detected in the play back mode, the play back mode is interrupted and the correction operation is processed with priority to the play back operation. Such correction operation is implemented by a correction signal priority circuit provided on a signal path from a signal converting device for converting the operator's operation into an electrical signal and an electronic controller for interrupting reading-out of the teaching operation data from the memory and for inputting the operator's operation to the electronic controller.
摘要翻译： PCT No.PCT / JP89 / 01245 Sec。 371日期：1992年6月5日 102（e）日期1992年6月5日PCT提交1989年12月12日PCT公布。 公开号WO91 / 09183 日期1991年6月27日。操作者为了实现机器执行机构的期望操作而采取的行动可以以教学模式存储，并且所存储的信息可以用于在回放模式下自动再现所需的操作，以减轻操作者的负担 。 可以消除由进行播放模式和教学模式的条件的差异引起的回放模式的故障，并且即使在手动模式中发生故障，也可以在手动模式下继续进行操作 自动化操作控制系统。 为了实现这些，当在播放模式中检测到操作者的校正操作时，重放模式被中断，并且优先处理重放操作的校正操作。 这种校正操作由设置在信号转换装置的信号路径上的校正信号优先电路实现，用于将操作者的操作转换为电信号，以及用于中断从存储器读出教学操作数据并用于输入的电子控制器 操作员对电子控制器的操作。
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公开(公告)号：US5148676A
公开(公告)日：1992-09-22
申请号：US555494
申请日：1990-10-12
CPC分类号： E02F9/2296 , E02F9/2242 , E02F9/2282 , E02F9/2292
摘要： A service valve circuit of a hydraulic excavator connected beforehand for use in controlling a special attachment in addition to a prescribed actuator control valve. The service valve circuit comprises a confluence valve 17 for performing electromagnetic proportional flow rate control, disposed in a confluence circuit 16 in communication with the section between inflow circuits 3F and 3R of two variable pumps 2F and 2R, an electrical switch 21 for switching the confluence valve 17 on or off according to a required flow rate and a volume 22 for adjusting the quantity of flow after passing through a confluence valve 17 in a range of flow for a maximum of one to two pumps. Since the requirement of confluence with respect to a required quantity of flow for a special attachment e and the quantity of confluence are set in advance, there will be no excess or shortage of the quantity of confluence. Therefore, the adjustment of flow rate using the number of rotations of an engine is not required and the action will not be slowed down even if switched from a special attachment control to a pivoting or traveling control.
摘要翻译： PCT No.PCT / JP89 / 01201 Sec。 371 1990年10月10日第 102（e）1990年10月10日PCT PCT日期：1989年11月29日PCT公布。 出版物WO90 / 07031 日期：1990年6月28日。除了规定的执行器控制阀之外，预先连接用于控制特殊附件的液压挖掘机的维修阀回路。 维修阀电路包括用于执行电磁比例流量控制的汇流阀17，其布置在与两个可变泵2F和2R的流入回路3F和3R之间的部分连通的汇流回路16中，用于切换汇流的电开关21 阀17根据所需的流量开启或关闭，以及容积22，用于在最大流量为1至2个泵的流量范围内调节通过汇流阀17的流量。 既然关于特殊附件e所要求的流量和汇合量的汇合要求是事先设定的，汇合量不会过剩或不足。 因此，不需要使用发动机的转数调节流量，即使从特殊的附件控制切换到枢转或行驶控制，动作也不会减慢。
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公开(公告)号：US5287699A
公开(公告)日：1994-02-22
申请号：US910084
申请日：1992-07-10
申请人： Fujitoshi Takamura , Takumi Onoda
发明人： Fujitoshi Takamura , Takumi Onoda
摘要： In a hydraulic drilling machine with a boom, arm and bucket as working parts, one or more of the working parts can be vibrated automatically to perform effective drilling with reduced resistance in various types of operations when the soil changes. Adequate vibration can be automatically generated by setting the working mode (Bo, A, Bu, Sk) and vibration mode (L, M, S) according to the soil or operation form beforehand and by setting the automatic vibration mode. Furthermore, since the control input of the working part lever can be added to the automatic vibration, simple and minute repeated operations, such as pressure-shifting, sifting or drilling conducted while the bucket is vibrated, can be performed readily and uniformly without exhausting the operator, and workability can thus be greatly improved.
摘要翻译： PCT No.PCT / JP90 / 00039 Sec。 371日期：1992年7月10日 102（e）日期1992年7月10日PCT 1990年1月16日PCT PCT。 公开号WO91 / 10783 日期：1991年7月25日。在具有起重臂，手臂和铲斗作为工作部件的液压钻机中，当土壤变化时，可以自动振动一个或多个工作部件以进行有效的钻孔，减少各种操作的阻力 。 通过预先根据土壤或操作形式设置工作模式（Bo，A，Bu，Sk）和振动模式（L，M，S），并设置自动振动模式，可以自动生成足够的振动。 此外，由于可以将自动振动加上工作部分杆的控制输入，因此能够容易且均匀地进行铲斗振动时进行的压力移动，筛选或钻孔等简单且微小的重复操作，而不会排出 操作者和可操作性可以大大提高。
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公开(公告)号：US6161522A
公开(公告)日：2000-12-19
申请号：US341898
申请日：1999-07-20
CPC分类号： F04B49/08 , E02F9/2228 , E02F9/2235 , E02F9/2246 , E02F9/2296 , F02D31/009 , F02D41/1497
摘要： The invention provides a controller of an engine and a variable capacity pump which can perform a speedy work even under a heavy load and a strong work at the critical moment. Accordingly, there is provided control means (30) which outputs commands to a fuel injection pump (2), relief control means (19, 21) and variable capacity pump output control means (27, 29) so that when a signal for an on operation of an active mode switch (7) is inputted, the product of a pump discharge pressure P by a pump discharge amount Q is expressed by a P-Q constant horsepower curve Ha in an active mode in which the product of P and Q is higher than a predetermined value in the normal operation, and when a signal for an on operation of a power mode switch (9) is inputted, the product of the pump discharge pressure P by the pump discharge amount Q is expressed by a P-Q constant horsepower curve Hap in a power active mode in which the product of P and Q is higher than that in the active mode by one stage.
摘要翻译： PCT No.PCT / JP98 / 00186 Sec。 371日期1999年7月20日 102（e）1999年11月20日日期PCT 1998年1月20日PCT PCT。 第WO98 / 31926号公报 日期1998年7月23日本发明提供了一种发动机和可变容量泵的控制器，即使在重负载下也能够进行快速工作，并且在关键时刻进行强力作业。 因此，提供了向燃料喷射泵（2），溢流控制装置（19,21）和可变容量泵输出控制装置（27,29）输出命令的控制装置（30），使得当用于打开 输入主动模式开关（7）的操作，泵排出压力P乘以泵排出量Q的乘积以P和Q的乘积高于的活动模式的PQ常数马力曲线Ha表示 在正常运行中为预定值，并且当输入用于开启动力模式开关（9）的信号时，泵排出压力P乘以泵排出量Q的乘积由PQ常数马力曲线Hap 在功率活动模式中，P和Q的乘积比活动模式中的乘积高一级。
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公开(公告)号：US6006521A
公开(公告)日：1999-12-28
申请号：US139930
申请日：1998-08-26
CPC分类号： E02F9/2296 , E02F9/2228 , E02F9/2282 , F15B11/123 , F15B11/162
摘要： A control circuit for a piece of heavy machinery reduces a speed of one actuator, having a lower load, when that actuator and another actuator, having a higher load, are operated simultaneously. The control circuit includes a first control valve for supplying a first actuator with pressurized oil, discharged from a hydraulic pump; a second control valve for supplying a second actuator with pressurized oil, discharged from the hydraulic pump; operating units for actuating the first control valve and the second control valve; and a mode selector for providing a command to the second control valve in order to increase a speed of the first actuator compared with that of the second actuator when the first and second actuators are operated simultaneously. A variable adjustor can be provided to control the open area of a valve for enabling the stroke of the spool of the second control valve to regulated. The control circuit can include a sensor for detecting pilot pressure applied to the first control valve; a sensor for detecting pilot pressure applied to either end of the second control valve; a solenoid valve for passing pilot pressure to pilot ports at both ends of the second control valve; and a controller for actuating said solenoid valve responsive to signals from the two sensors.
摘要翻译： 当该致动器和另一个具有较高负载的致动器同时操作时，用于一件重型机械的控制电路降低了具有较低负载的一个致动器的速度。 控制电路包括用于向第一致动器供给从液压泵排出的加压油的第一控制阀; 用于向第二致动器供给从液压泵排出的加压油的第二控制阀; 用于致动第一控制阀和第二控制阀的操作单元; 以及模式选择器，用于当第一和第二致动器同时操作时，向第二控制阀提供命令，以便提高第一致动器的速度与第二致动器的速度。 可以提供可变调节器来控制阀的开口面积，以使得能够调节第二控制阀的阀芯的行程。 控制电路可以包括用于检测施加到第一控制阀的先导压力的传感器; 用于检测施加到所述第二控制阀的任一端的先导压力的传感器; 用于将先导压力传递到第二控制阀两端的先导口的电磁阀; 以及用于响应于来自两个传感器的信号来致动所述电磁阀的控制器。
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公开(公告)号：US5520087A
公开(公告)日：1996-05-28
申请号：US211742
申请日：1994-04-12
CPC分类号： E02F3/437 , E02F9/2228
摘要： A control device for hydraulically operated machines for carrying out control to move a working unit with priority over other working units. A weight is added to each of the same manipulated amount of a plurality of operation levers 3, 4 in association with work type of M1 to M5 and the weights are stored in a memory of a controller 5 in association with the type of the operation levers 3, 4 and the work type. The work type M1 to M5 are selected by a switch 2. When the operation lever 3, 4 is manipulated and a work type is selected by the switch 2, the weight associated with the type of the manipulated operation lever 3, 4 and the selected work type M1 to M2 is read from the memory, and the read weight is added to a manipulated amount S1, S2 of the manipulated operation lever 3, 4. Then, not signals indicative of the manipulated amount S1, S2 of the operation lever 3, 4 but signals E, E' added with the weight which are indicative of the manipulated amount are outputted to control valves 7. This invention simply adds a simple-structured device to an existing hydraulic circuit to provide control so as to move a certain working unit with priority over other working units. Therefore, the cost of the device can be remarkably reduced.
摘要翻译： PCT No.PCT / JP93 / 01268 Sec。 371日期1994年04月12日 102（e）日期1994年4月12日PCT提交1993年7月9日PCT公布。 公开号WO94 / 05917 日期1994年3月17日。一种用于液压操作机器的控制装置，用于执行控制以优先于其他工作单元移动工作单元。 与M1〜M5的工作类型相关联地，将多个操作杆3,4的相同操作量的加权相加，并且将权重与操作杆类型相关联地存储在控制器5的存储器中 3，4和工作类型。 通过开关2选择工作类型M1至M5。当操作杆3,4被操纵并且通过开关2选择工作类型时，与操纵操作杆3,4的类型相关联的重量和所选择的 从存储器读取工作类型M1到M2，并且将读取的权重加到操作操作杆3,4的操作量S1，S2上。然后，不是指示操作杆3的操纵量S1，S2的信号 4，但是附加了表示操作量的重量的信号E，E'输出到控制阀7.本发明简单地将简单结构的装置添加到现有的液压回路中以提供控制以便移动一定的工作 单位优先于其他工作单位。 因此，可以显着降低设备的成本。
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公开(公告)号：US5630317A
公开(公告)日：1997-05-20
申请号：US531942
申请日：1995-09-21
CPC分类号： F15B11/165 , E02F9/2228 , E02F9/2235 , E02F9/2246 , E02F9/2296 , F15B21/087 , F15B2211/20553 , F15B2211/20584 , F15B2211/3054 , F15B2211/3111 , F15B2211/31576 , F15B2211/355 , F15B2211/40515 , F15B2211/421 , F15B2211/50536 , F15B2211/55 , F15B2211/6054 , F15B2211/6058 , F15B2211/6309 , F15B2211/633 , F15B2211/634 , F15B2211/6346 , F15B2211/6651 , F15B2211/6653 , F15B2211/7053 , F15B2211/71
摘要： This invention aims to improve the operability in a hydraulic drive machine. According to a load Pp on work machine actuators 3 and 4, a differential pressure of a discharge pressure Pp of a hydraulic pump and a load pressure PLS is varied. Further, the differential pressure is varied so that the differential pressure between the discharge pressure Pp of the hydraulic pump 2 and the load pressure PLS decreases as the load Pp on the work machine actuators 3 and 4 increases and a rotational speed .epsilon.E of an engine decreases. Furthermore, the rotational speed .epsilon.E of the engine 1, discharge pressure Pp of the hydraulic pump 2, the operation amounts S1 and S2 of the various operation levers are detected, respectively, the absorbing torque of the hydraulic pump 2 is set based on the detected rotational speed .epsilon.E and a target rotational speed .epsilon.ET, and the differential pressure between the discharge pressure Pp of the hydraulic pump 2 and the load pressure PLS is varied based on the detected values and the torque set value. By varying the differential pressure, it is possible to realize an optimal lever operability suitable for the current working conditions, and thus possible to remarkably improve the work efficiency.
摘要翻译： PCT No.PCT / JP94 / 00491 Sec。 371 1995年9月21日第 102（e）日期1995年9月21日PCT 1994年3月28日PCT公布。 公开号WO94 / 23213 日期：1994年10月13日本发明旨在提高液压驱动机器的可操作性。 根据作业机械致动器3和4上的负载Pp，液压泵的排出压力Pp和负载压力PLS的差压变化。 此外，差压变化，使得液压泵2的排出压力Pp与负载压力PLS之间的压力差随着作业机械致动器3和4上的负载Pp的增加而减小，并且发动机的转速εE 减少 此外，分别检测发动机1的转速εE，液压泵2的排出压力Pp，各种操作杆的操作量S1和S2，液压泵2的吸收转矩基于 检测转速εE和目标转速εET，并且液压泵2的排出压力Pp与负载压力PLS之间的压差基于检测值和转矩设定值而变化。 通过改变压差，可以实现适合于当前工作条件的最佳杆操作性，从而可以显着地提高工作效率。
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公开(公告)号：US5469646A
公开(公告)日：1995-11-28
申请号：US211251
申请日：1994-03-24
申请人： Fujitoshi Takamura
发明人： Fujitoshi Takamura
CPC分类号： E02F9/2246 , E02F9/2235 , E02F9/2296
摘要： A hydraulic excavator adapted to be changed over simply to a fine operation mode so as to control the capacity of a hydraulic pump through load-sensing control to thereby make it possible to perform accurate work when the machine needs to be finely operated temporarily for operations such as ground levelling, and position adjustment on a dump vessel, wherein the fine operation mode is easily cleared to switch the excavator to a standard mode to thereby improve operability, as well as work efficiency. When the excavator is switched to the fine operation mode so as to control the capacity of the hydraulic pump through load-sensing control for accurate work, the engine is driven at such a torque and engine revolution as permitting a minimum fuel consumption, thus reducing the fuel consumption of the engine.
摘要翻译： PCT No.PCT / JP92 / 01226 Sec。 371日期1994年3月24日 102（e）1994年3月24日PCT 1992年9月25日PCT公布。 出版物WO93 / 06315 日期1994年04月1日。一种液压挖掘机，其适于简单地改变为精细操作模式，以通过负载感测控制来控制液压泵的容量，从而使得当机器需要时可以执行准确的工作 可以临时精细地进行操作，例如地面平整和倾卸式容器上的位置调整，其中精细操作模式易于清除，以将挖掘机切换到标准模式，从而提高可操作性以及工作效率。 当挖掘机切换到精细操作模式以通过负载感测控制来控制液压泵的能力以进行精确的工作时，发动机以允许最小燃料消耗的这种扭矩和发动机转速被驱动，从而减少了 发动机的燃油消耗。
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