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    DOUBLE-ARM WORKING MACHINE
    4.
    发明公开
    DOUBLE-ARM WORKING MACHINE 有权
    DOPPELARM-ARBEITSMASCHINE

    公开(公告)号：EP2022899A1

    公开(公告)日：2009-02-11

    申请号：EP07706600.9

    申请日：2007-01-11

    申请人： Hitachi Construction Machinery Co., Ltd

    发明人： ISHII, Akinori ,  FUJISHIMA, Kazuo ,  TOMITA, Kunitsugu

    IPC分类号： E02F3/36 ,  E02F3/96 ,  E02F9/24

    CPC分类号： E02F3/384 ,  B25J9/0087 ,  E02F9/2004 ,  E02F9/2033 ,  E02F9/24 ,  G05B2219/39083 ,  G05B2219/43202 ,  G05B2219/45012

    摘要： A double-arm working machine equipped with an upper swing structure 3 including an operator cabin 4, with a left swing post 7a and right swing post 7b provided in front of the upper swing structure 3, and with a left work front A and right work front B provided on the left swing post 7a and the right swing post 7b, respectively, such that the work fronts A, B each sway vertically, further includes an interference prevention controller which, pursuant to a differential angle between the left and right work fronts A, B and to a command signal from an operating device, generates an output signal to swing the swing posts 7a, 7b. The interference prevention controller is constructed such that if a differential angle range in which the left and right work fronts A, B are likely to come into contact with each other is defined as an interference danger area (N), and an assigned differential-angle range contiguous to the interference danger area is defined as a semi-interference danger area, when the differential angle between the work fronts A, B is present in the semi-interference danger area (M) and the work fronts A, B approach each other, the controller reduces a signal level of an output signal which swings the swing posts 7a, 7b, and slows down a swinging operation of the work front which swings towards the other work front. This prevents damage to the left and right work fronts due to interference between the work fronts.

    摘要翻译： 一种双臂加工机，其具有包括操作员舱4的上摆动结构3，其具有设置在上摆动结构3前方的左摆动臂7a和右摆动柱7b，以及左作业前侧A和右工作 前侧B分别设置在左摆动柱7a和右摆动柱7b上，使得垂直摆动的工作面A，B进一步包括防干扰控制器，其根据左右工作面之间的差角 A，B和来自操作装置的命令信号，产生摆动摆杆7a，7b的输出信号。 防干扰控制器被构造成使得如果左右工作面A，B彼此接触的差角范围被定义为干扰危险区域（N），并且分配的差角 定义为干扰危险区域的范围为半干扰危险区域，当半干扰危险区域（M）和工作面A，B之间的工作面A，B之间的差分角度彼此接近时 控制器降低摆动摆杆7a，7b摆动的输出信号的信号电平，并减慢工作前沿向另一个工作台摆动的摆动操作。 这可以防止由于工作面之间的干扰而损坏左右工作面。

    CONSTRUCTION MACHINE
    5.
    发明公开
    CONSTRUCTION MACHINE 审中-公开
    施工机械

    公开(公告)号：EP3006745A1

    公开(公告)日：2016-04-13

    申请号：EP14800664.6

    申请日：2014-05-20

    申请人： Hitachi Construction Machinery Co., Ltd.

    发明人： ISHIHARA, Shinji ,  HOSHINO, Masatoshi ,  FUJISHIMA, Kazuo

    IPC分类号： F15B21/14 ,  E02F9/20

    CPC分类号： E02F9/2075 ,  B60K6/485 ,  B60W20/13 ,  B60W2300/17 ,  B60Y2200/412 ,  E02F3/32 ,  E02F9/2091 ,  E02F9/2095 ,  E02F9/2217 ,  E02F9/2296 ,  F15B21/14 ,  F15B2211/20515 ,  F15B2211/20546 ,  F15B2211/41554 ,  F15B2211/426 ,  F15B2211/611 ,  F15B2211/6306 ,  F15B2211/6309 ,  F15B2211/6323 ,  F15B2211/6326 ,  F15B2211/7058 ,  F15B2211/763 ,  F15B2211/88 ,  Y10S903/903

    摘要： To provide construction machinery capable of more efficiently utilizing the energy of return hydraulic oil from a hydraulic actuator. The present invention is provided with: an engine 11; a hydraulic pump 12 that is driven by the engine 11; a hydraulic actuator 17 that is driven by fluid discharged from the hydraulic pump 13; a discharge pressure sensor 12d that detects the discharge pressure from the hydraulic pump 13; a hydraulic regenerative motor 18 that is driven by the return hydraulic oil from the hydraulic actuator 17; a flow meter 18e that detects the flow rate of the return hydraulic oil; a flow dividing valve 50 that controls the rate of inflow to the hydraulic regenerative motor 18; a controller 15 that controls the flow dividing valve 50 according to the discharge pressure detected by the discharge pressure sensor 12d and the flow rate detected by the flow meter 18e; a regenerative generator 19 that generates electric power by being driven by the power of the hydraulic regenerative motor 18; and a motor generator 13 that assists drive of the engine 11 by the electric power supplied from the regenerative generator 19.

    摘要翻译： 提供能够更高效地利用来自液压执行机构的返回液压油的能量的工程机械。 本发明设有：发动机11; 由发动机11驱动的液压泵12; 由从液压泵13排出的流体驱动的液压致动器17; 排出压力传感器12d，其检测来自液压泵13的排出压力; 由来自液压致动器17的返回液压油驱动的液压再生马达18; 检测返回工作油的流量的流量计18e， 分流阀50，其控制流向液压再生马达18的流量; 控制器15，其根据由排出压力传感器12d检测到的排出压力和由流量计18e检测到的流量来控制分流阀50; 由液压再生马达18的动力驱动而产生电力的再生发电机19， 以及利用从再生发电机19供给的电力辅助发动机11的驱动的电动发电机13。

    AREA-LIMITED DIGGING CONTROL DEVICE FOR CONSTRUCTION MACHINES
    8.
    发明公开
    AREA-LIMITED DIGGING CONTROL DEVICE FOR CONSTRUCTION MACHINES 失效
    BAGGERSTEUERUNGSVORRICHTUNG MIT ARBEITSBEREICHSBEGRENZUNGFÜRBAUMASCHINEN

    公开(公告)号：EP0711876A1

    公开(公告)日：1996-05-15

    申请号：EP95920219.3

    申请日：1995-05-31

    申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.

    发明人： WATANABE, Hiroshi ,  HIRATA, Toichi ,  HAGA, Masakazu ,  YAMAGATA, Eiji ,  FUJISHIMA, Kazuo ,  ADACHI, Hiroyuki

    IPC分类号： E02F3/42 ,  E02F3/43 ,  E02F3/84 ,  E02F3/85 ,  E02F9/20 ,  E02F9/22

    CPC分类号： E02F9/2033 ,  E02F3/435

    摘要： An area-limited digging control device for a hydraulic shovel characterized in that an area where a front device (1A) can move is set in advance, that the position and attitude of the front device (1A) are calculated based on signals from angle detectors (8a-8c), that a target speed vector of the front device is calculated based on a detection signal from an operation lever device and a load pressure detected by pressure detectors (270a-271b), that when the front device stays within the set area adjacent to its boundary, a vector component in a direction of approaching the boundary of the set area is reduced, while when the front device stays out of the set area, the target speed vector is corrected such that the front device returns to the set area, and that the operation signal in accordance with its target speed vector is corrected by a load pressure and outputted to proportional solenoid valves (210a-211b), whereby area-limited digging can efficiently be performed and stable and accurate control can be performed irrespective of variation in the load pressure of a hydraulic actuator.

    摘要翻译： 一种用于液压挖掘机的区域限制挖掘控制装置，其特征在于，预先设置前部装置（1A）能够移动的区域，基于来自角度检测器的信号来计算前部装置（1A）的位置和姿态 （8a-8c），基于来自操作杆装置的检测信号和由压力检测器（270a-271b）检测到的负载压力来计算前部装置的目标速度矢量，当前部装置停留在组件 与其边界相邻的区域，减小了接近设定区域边界方向的矢量分量，而当前置设备停留在设定区域之外时，对目标速度矢量进行校正，使得前置设备返回到设定区域 区域，并且根据其目标速度矢量的操作信号通过负载压力被校正并输出到比例电磁阀（210a-211b），由此可以有效地执行面积限制的挖掘和稳定的交流 无论液压致动器的负载压力的变化如何，都可进行策略控制。