Apparatus for controlling hydraulic pumps for construction machine
    1.
    发明授权
    Apparatus for controlling hydraulic pumps for construction machine 失效
    控制建筑机械液压泵的装置

    公开(公告)号:US5176504A

    公开(公告)日:1993-01-05

    申请号:US820868

    申请日:1992-01-17

    IPC分类号: E02F9/22 F04B49/06

    摘要: An apparatus for controlling hydraulic pumps for a construction machine wherein the construction machine includes first and second hydraulic pumps adapted to be driven by an engine and hydraulic actuators hydraulically connected to the first and second hydraulic pumps via first and second actuating valves is disclosed. A controlling section calculates extra horse powers .DELTA.HP.sub.1 and .DELTA.HP.sub.2 based on reference allowable absorptive horse powers set relative to the first and second hydraulic pumps and actual absorptive horse powers (HP.sub.01) and (HP.sub.02) derived from the first and second hydraulic pumps. In addition, the controlling section calculates allowable discharge capacities (V.sub.1P) and (V.sub.2P) based on the number (N) of revolutions of the engines, pressures (P.sub.1) and (P.sub.2) of hydraulic oils discharged from the first and second hydraulic pumps, the extra horse powers .DELTA.HP.sub.1 and .DELTA.HP.sub.2 and allowable discharge capacities (V.sub.1P) and (V.sub.2P). Then, the controlling section selects a smaller one of a target discharge capacity and the allowable discharge capacity (V.sub.1P) and a smaller one of another target discharge capacity and the allowable discharge capacity (V.sub.2P) as minimum target discharge capacities (V.sub.1) and (V.sub.2). Thereafter, the controlling section controls swash plate angles of the first and second hydraulic pumps such that the minimum target discharge capacities (V.sub.1) and (V.sub.2) are correctly set corresponding to the first and second hydraulic pumps. Consequently, absorptive horse powers to be derived from the first and second hydraulic pumps can properly be controlled while a sum of the reference allowable absorptive horse powers is kept constant.

    摘要翻译: PCT No.PCT / JP90 / 00964 Sec。 371日期:1992年1月17日 102(e)日期1992年1月17日PCT提交1990年7月27日PCT公布。 公开号WO91 / 02162 日本1991年2月21日。一种用于控制建筑机械的液压泵的设备,其中建筑机械包括适于由发动机驱动的第一和第二液压泵和通过第一和第二液压连接到第一和第二液压泵的液压致动器 公开了致动阀。 控制部分基于相对于从第一和第二液压泵获得的第一和第二液压泵和实际吸收马力(HP01)和(HP02)设定的参考允许吸收马力来计算额外的马力DELTA HP1和DELTA HP2。 此外,控制部基于从第一和第二液压泵排出的液压油的发动机数量(N),压力(P1)和(P2),计算容许排放容量(V1P)和(V2P) 额外的马力DELTA HP1和DELTA HP2和容许放电容量(V1P)和(V2P)。 然后,控制部选择目标放电容量和容许放电容量(V1P)中较小的一个,另一个目标放电容量和容许放电容量(V2P)中的较小一个作为最小目标放电容量(V1)和(V2 )。 此后,控制部分控制第一和第二液压泵的斜盘角度,使得对应于第一和第二液压泵正确地设定最小目标排出容量(V1)和(V2)。 因此,可以适当地控制从第一和第二液压泵得到的吸收马力,同时参考允许吸收马力的总和保持恒定。

    Apparatus for controlling straight excavating operation with hydraulic
excavator
    2.
    发明授权
    Apparatus for controlling straight excavating operation with hydraulic excavator 失效
    用液压挖掘机控制直接挖掘作业的装置

    公开(公告)号:US5598648A

    公开(公告)日:1997-02-04

    申请号:US671795

    申请日:1991-09-09

    IPC分类号: E02F3/43 E02F9/22 E12F3/32

    CPC分类号: E02F3/437

    摘要: The present invention is concerned with an apparatus for controlling a straight excavating operation with a hydraulic excavator such as a power shovel or the like machine including three working units, i.e., a boom, an arm and a bucket. When the straight excavating operation is performed, a hydraulic pressure of hydraulic oil in a hydraulic chamber on the boom lowering side of a boom cylinder is conducted to a drain tank while maintaining a predetermined set pressure, and a hydraulic pressure of hydraulic oil in a hydraulic chamber on the boom raising side of the boom cylinder is conducted to the drain tank via a check valve which serves to inhibit the hydraulic oil from flowing from the hydraulic chamber on the boom raising side of the boom cylinder to the drain tank, whereby the boom is held in the so-called floated state so as to enable a straight excavating operation to be performed merely by actuating the arm and bucket. In addition, according to the present invention, the apparatus is provided with an automatic bucket driving system for automatically controlling the present bucket angle so as to coincide with a preset bucket angle. This system contributes to remarkable reduction of a load to be borne by an operator while a straight excavating operation is performed.

    摘要翻译: PCT No.PCT / JP90 / 00986 Sec。 371日期1991年9月9日 102(e)1991年9月9日PCT PCT 1990年8月2日PCT公布。 公开号WO91 / 02125 日期1991年2月21日本发明涉及一种用铲斗等机械的液压挖掘机进行直线挖掘操作的装置,该装置包括三个工作单元,即起重臂,臂和铲斗。 当进行直接挖掘操作时,在保持预定的设定压力的同时将动臂缸的动臂下降侧的液压室中的液压油的液压压力导向排水槽,并且液压油中的液压油的液压 动臂缸的悬臂升起侧的腔室通过止回阀传导到排水槽,该止回阀用于抑制液压油从动臂缸的动臂抬起侧的液压室流向排水箱,由此动臂 被保持在所谓的浮动状态,以便仅通过致动臂和铲斗才能进行直线挖掘操作。 此外,根据本发明,该装置设置有自动铲斗驱动系统,用于自动控制当前的铲斗角度以与预设的铲斗角度一致。 该系统在执行直线挖掘操作时有助于显着减少由操作者承担的负载。

    Confluence valve circuit of a hydraulic excavator
    3.
    发明授权
    Confluence valve circuit of a hydraulic excavator 失效
    液压挖掘机的液压阀电路

    公开(公告)号:US5148676A

    公开(公告)日:1992-09-22

    申请号:US555494

    申请日:1990-10-12

    IPC分类号: E02F9/22 F15B11/17

    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。

    Teaching and playback method for work machine
    4.
    发明授权
    Teaching and playback method for work machine 失效
    作业机器教学与播放方法

    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。

    Hydraulically-operated equipment for construction machinery
    5.
    发明授权
    Hydraulically-operated equipment for construction machinery 失效
    工程机械液压设备

    公开(公告)号:US5365737A

    公开(公告)日:1994-11-22

    申请号:US168720

    申请日:1993-12-16

    IPC分类号: E02F9/22 F16D31/02 F16D33/00

    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。

    Method and device for automating operation of construction machine
    6.
    发明授权
    Method and device for automating operation of construction machine 失效
    自动化施工机械运行方法及装置

    公开(公告)号:US5359517A

    公开(公告)日:1994-10-25

    申请号:US853716

    申请日:1992-06-05

    IPC分类号: E02F3/43 G06F15/20

    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。

    Automatic vibration method and device for hydraulic drilling machine
    7.
    发明授权
    Automatic vibration method and device for hydraulic drilling machine 失效
    液压钻机自动振动法及装置

    公开(公告)号:US5287699A

    公开(公告)日:1994-02-22

    申请号:US910084

    申请日:1992-07-10

    CPC分类号: E02F3/438 E02F9/221

    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。

    Timber crusher
    8.
    发明授权
    Timber crusher 有权
    木材破碎机

    公开(公告)号:US06745965B1

    公开(公告)日:2004-06-08

    申请号:US09926784

    申请日:2001-12-19

    IPC分类号: B02C1331

    摘要: A timber crusher capable of sufficiently exhibiting an effect of preventing timber pieces from scattering to an outside and also preventing damage to the crusher is provided. To this end, in the timber crusher comprising, on a base, a crusher for crushing timber into pieces and a rotary tub for guiding the timber to the crusher, a hopper (5) having an upwardly open shell part (5b) and guiding the charged timber to the rotary tub (3) is provided at an opening of the rotary tub (3). The hopper (5) is inclined with respect to the horizontal and is tiltable. Further, the hopper (5) may be provided with a scattering prevention cover (7) for preventing timber from scattering to an outside from an inside of the rotary tub (3).

    摘要翻译: 提供能够充分发挥木材散布到外部并且还防止破碎机损坏的效果的木材破碎机。 为此,在木材破碎机的基础上,将用于将木材破碎成碎片的破碎机和用于将木材引导至破碎机的旋转桶,具有向上开口的壳体部分(5b)的料斗(5) 在旋转桶(3)的开口处设置带电木材到旋转桶(3)。 料斗(5)相对于水平面倾斜并且是可倾斜的。 此外,料斗(5)可以设置有用于防止木材从旋转桶(3)的内部飞散到外部的防散射罩(7)。