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    • 2. 发明申请
    • APPARATUS FOR DIAGNOSING FAILURE OF HYDRAULIC PUMP FOR WORK MACHINE
    • 用于诊断工作机械液压泵故障的装置
    • WO1998006946A1
    • 1998-02-19
    • PCT/JP1997002771
    • 1997-08-07
    • HITACHI CONSTRUCTION MACHINERY CO., LTD.TANAKA, YasuoOCHIAI, MasamiYAGYU, TakashiHASHIMOTO, AkiraFURUNO, YoshinoriWATANABE, YutakaSUGIYAMA, Yukihiko
    • HITACHI CONSTRUCTION MACHINERY CO., LTD.
    • F04B51/00
    • F15B20/004E02F9/2235E02F9/226E02F9/2282E02F9/2292E02F9/2296E02F9/26F04B49/065F04B51/00F04B2205/063
    • An apparatus for diagnosing failure of hydraulic pumps for a work machine, which apparatus is inexpensive and capable of surely specifying a faulty hydraulic pump or pumps. Pressure sensors (61-64) are provided on lines (30, 40) leading to a tank (T) from locations leaving center bypasses of flow control valves (21, 231-234, 451-454, 26) connected to hydraulic pumps (1-6), and respective solenoid directional control valves (51-56) are provided on input circuits of respective regulators (11-16) to permit, when excited, pressure from a pilot pump (7) to be introduced into the regulators (11-16). When a switch (80) commands judgement with all the flow control valves in neutral positions, a signal from a processing device (70) energizes one of the solenoid directional control valves to cause a corresponding hydraulic pump to discharge a fluid at a maximum flow rate. A detected value from an associated pressure sensor at this time is converted into a flow rate and stored, and this sequence is carried out with respect to the respective hydraulic pumps. On the basis of flow rates obtained from every judgement, failure of a specified hydraulic pump or pumps is diagnosed.
    • 一种用于诊断作业机械的液压泵的故障的装置,该装置便宜并能够确定地指定故障的液压泵或泵。 压力传感器(61-64)设置在从连接到液压泵的流量控制阀(21,231-234,451-454,26)的中心旁路的位置通向罐(T)的管线(30,40) 1-6),并且各个电磁换向控制阀(51-56)设置在相应的调节器(11-16)的输入电路上,以允许当被激励时来自先导泵(7)的压力被引入调节器 11-16)。 当开关(80)命令所有流量控制阀在中立位置的判断时,来自处理装置(70)的信号使电磁方向控制阀之一通电,使相应的液压泵以最大流量排出流体 。 此时,来自相关压力传感器的检测值被转换为流量并存储,并且该顺序相对于相应的液压泵执行。 根据从每个判断获得的流量,诊断指定的液压泵或泵的故障。
    • 4. 发明申请
    • REGION LIMITED EXCAVATION CONTROL APPARATUS FOR CONSTRUCTION MACHINES
    • 区域有限公司施工机械挖掘控制装置
    • WO1997007297A1
    • 1997-02-27
    • PCT/JP1996002252
    • 1996-08-08
    • HITACHI CONSTRUCTION MACHINERY CO., LTD.NAKAGAWA, TakashiWATANABE, HiroshiHAGA, MasakazuFUJISHIMA, KazuoEGAWA, Eiji
    • HITACHI CONSTRUCTION MACHINERY CO., LTD.
    • E02F03/43
    • E02F3/437
    • A region in which a front unit (1A) can be moved is set in advance. When a mode switch (20) is on with the front unit within and in the vicinity of a boundary of the set region, a target speed vector for the front unit is corrected so as to reduce therefrom the components thereof in the direction approaching the boundary of the set region on the basis of a signal from which an operating signal for operating levers (4a-4c) is reduced, and, when the mode switch (20) is off, such correction is made by using the operating signal as it is. When the front unit is out of the set region, the target speed vector is corrected so that the front unit returns to the set region. This enables the region limited excavation to be carried out efficiently and smoothly, and an operator to choose of his will between an accuracy priority working mode and a speed priority working mode.
    • 可以预先设定可以移动前置单元(1A)的区域。 当模式开关(20)在设置区域的边界内和附近开启模式开关(20)时,校正用于前端单元的目标速度矢量,从而使其在接近边界的方向上从其中减少其分量 基于操作杆(4a-4c)的操作信号被减小的信号,并且当模式开关(20)关闭时,通过使用操作信号来进行这样的校正 。 当前置单元超出设定区域时,对目标速度矢量进行校正,使前置单元返回到设定区域。 这使得区域有限的挖掘能够有效和平稳地进行,并且操作者在精度优先工作模式和速度优先工作模式之间选择他的意志。
    • 6. 发明申请
    • AERA LIMITING DIGGING CONTROL DEVICE FOR A BUILDING MACHINE
    • 用于建筑机械的AERA限制吊装控制装置
    • WO1995030059A1
    • 1995-11-09
    • PCT/JP1995000843
    • 1995-04-27
    • HITACHI CONSTRUCTION MACHINERY CO., LTD.HIRATA, ToichiYAMAGATA, EijiWATANABE, HiroshiHAGA, MasakazuFUJISHIMA, KazuoADACHI, Hiroyuki
    • HITACHI CONSTRUCTION MACHINERY CO., LTD.
    • E02F03/43
    • E02F9/2033E02F3/301E02F3/435
    • An area limiting digging control device for a hydraulic shovel characterized in that an area where a front device (1A) can travel is set in advance, that the position and attitude of the front device are calculated by a control unit (9) based on signals from angle detectors (8a-8c), that a target speed vector (Vc) for the front device is calculated based on signals from operation lever devices (4a, 4b), that the target speed vector so calculated is maintained when the front device is not present in the vicinity of a boundary within the set area, while the target speed vector is corrected so as to reduce a vector component (Vcy) in a direction in which the front device approaches the boundary of the set area when the front device is present in the vicinity of the boundary within the set area, and that the target speed vector is corrected such that the front device can return to within the set area when it is out of the set area, whereby an area-limited digging operation can be carried out in an efficient fashion.
    • 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,预先设置前置装置(1A)可行进的区域,通过控制单元(9)基于信号计算前置装置的位置和姿态 从角度检测器(8a-8c),基于来自操作杆装置(4a,4b)的信号计算出用于前置装置的目标速度矢量(Vc),当前部装置为 不存在于设定区域内的边界附近,同时校正目标速度矢量,以便当前置装置是前置装置是前置装置接近设定区域的边界时的方向上减小矢量分量(Vcy) 存在于设定区域内的边界附近,并且校正目标速度矢量,使得当设备区域超出设定区域时,前端设备可以返回到设定区域内,从而可以进行区域限制的挖掘操作 携带o 以高效的方式。
    • 7. 发明申请
    • LEAD FRAME MANUFACTURING METHOD
    • 引导框架制造方法
    • WO1994013015A1
    • 1994-06-09
    • PCT/JP1993001707
    • 1993-11-22
    • HITACHI CONSTRUCTION MACHINERY CO., LTD.TADA, NobuhikoMIYANAGI, NaokiSHIMOMURA, YoshiakiSAKURAI, ShigeyukiOKUMURA, ShinyaNAGANO, Yoshinari
    • HITACHI CONSTRUCTION MACHINERY CO., LTD.
    • H01L23/50
    • H01L21/4828B23K26/361H01L21/4821H01L23/49541H01L24/48H01L24/73H01L2224/32245H01L2224/48091H01L2224/48247H01L2224/73265H01L2924/00014H01L2924/01039H01L2924/01078H01L2924/01079H01L2924/12042H01L2924/1532H01L2924/181Y10T29/49121Y10T29/515H01L2924/00012H01L2224/45099H01L2224/05599H01L2924/00
    • A method of manufacturing a lead frame (1) from a metal plate, wherein outer leads (4) of the lead frame (1) and outer portions (3b) of inner leads (3) are formed by etching metal plate (11). The inner portions (3a) of the inner leads are then laser beam machined with the connecting portions (7) left as they are so that the front end portions of the inner leads (3) are joined. A mechanical surface treatment and a chemical surface treatment are then conducted, and dross (10), spatters (9) and oxide film which are deposited or formed during the laser beam machining operation are thereby removed. The portions which are on the inner side of the inner leads (3), and which are connected to the terminals of a semiconductor device, are then plated with gold to form plated terminal portions (3A). The region excluding the region of the outer leads (4) is coated with a solder plating protecting film, and the outer leads (4) are solder plated. The connecting portions (7) left at the front ends of the inner leads (3) are then cut off by laser beam machining, and the inner leads (3) are thus separated from one another to form a final lead frame pattern. The solder plating protecting film is then removed, and the lead frame is washed and dried. This enables the occurrence of bend, which is ascribed to the thermal deformation of the lead frame during the laser beam machining operation, of the inner leads (3) within the plate surfaces to be prevented, and the manufacturing of lead frames to be done with a high precision. The invention can solve various problems with the laser beam machining.
    • 通过蚀刻金属板(11)形成从金属板制造引线框架(1)的方法,其中引线框架(1)的外引线(4)和内引线(3)的外部部分(3b)形成。 然后,内引线的内部(3a)被激光加工,其中连接部分(7)保持原样,使得内引线(3)的前端部接合。 然后进行机械表面处理和化学表面处理,由此去除在激光加工操作期间沉积或形成的浮渣(10),飞溅物(9)和氧化膜。 然后,在内部引线(3)的内侧的与半导体器件的端子连接的部分用金镀以形成电镀端子部(3A)。 除了外引线(4)的区域之外的区域涂覆有焊料保护膜,并且外引线(4)被焊接镀覆。 然后通过激光束加工将留在内引线(3)前端的连接部分(7)切断,内引线(3)彼此分开形成最终引线框架图案。 然后除去焊料保护膜,并将引线框架洗涤并干燥。 这样可以防止在板表面内的引线框架在激光束加工操作期间的热变形引起的弯曲发生,并且制造用于 精度高。 本发明可以解决激光束加工的各种问题。