Method of detection of actual operating time of machinery deployed at construction sites, data collection and management system, and base station
    61.
    发明授权
    Method of detection of actual operating time of machinery deployed at construction sites, data collection and management system, and base station 有权
    检测施工现场机械,数据采集管理系统和基站实际运行时间的方法

    公开(公告)号:US07050893B2

    公开(公告)日:2006-05-23

    申请号:US10240112

    申请日:2001-03-30

    IPC分类号: G01M17/00 G06F19/00

    摘要: The present invention is applied to a system comprised of large number of hydraulic excavators 1 deployed at construction sites and a base station 16. Each hydraulic excavator 1 is provided with a storage unit (memory 402), a control unit (CPU 401) for executing the work operation and receiving as input a quantitative machine status relating to the work operation, and a communications device 42. The base station 16 is provided with a communications device 16a, a management server 17 for identifying the serial number of the hydraulic excavator 1 and transferring information, and a database 18 for storing various information. The control unit of the hydraulic excavator 1 and the management server 17 of the base station 16 transfer information. With this system configuration, the control unit measures the duration during which the quantitative machine status satisfies a predetermined condition and stores it in the storage unit and transmits the measurement data of the duration to the management server 17 of the base station 16 conditional on the power input key being in the off position, while the management server 17 receives the measurement data of the duration and calculates the cumulative operating time. Further, the quantitative machine status and various event data stored in the storage unit of the hydraulic excavator 1 are sent to the base station 1, while the management server of the base station 16 stores the quantitative machine status and various event data in the database 18 by a predetermined format.

    摘要翻译: 本发明应用于由在施工现场部署的大量液压挖掘机1和基站16组成的系统。每个液压挖掘机1设置有存储单元(存储器402),用于执行的控制单元(CPU401) 工作操作和接收作为输入与工作操作相关的定量机器状态以及通信设备42.基站16设置有通信设备16a,用于识别液压挖掘机1的序列号的管理服务器17 和传送信息,以及用于存储各种信息的数据库18。 液压挖掘机1的控制单元和基站16的管理服务器17传送信息。 利用该系统配置,控制单元测量定量机器状态满足预定条件的持续时间并将其存储在存储单元中,并将持续时间的测量数据发送到基站16的管理服务器17,该功能以功率为条件 输入键处于关闭位置,而管理服务器17接收持续时间的测量数据并计算累积操作时间。 此外,存储在液压挖掘机1的存储单元中的定量机器状态和各种事件数据被发送到基站1,而基站16的管理服务器将定量机器状态和各种事件数据存储在数据库18中 按预定格式。

    Method for managing construction machine, and arithmetic processing apparatus
    63.
    发明授权
    Method for managing construction machine, and arithmetic processing apparatus 有权
    施工机械管理方法及运算处理装置

    公开(公告)号:US06832175B2

    公开(公告)日:2004-12-14

    申请号:US10240117

    申请日:2002-09-27

    IPC分类号: G04F100

    CPC分类号: E02F9/20 G07C5/008 G07C5/085

    摘要: A hydraulic excavator 1 working in fields includes a controller 2 for measuring a working time for each of an engine 32, a front 15, a swing body 13, and a travel body 12, storing measured data in a memory of the controller 2, and then transferring it to a base station computer 3 via satellite communication, an FD, etc. The transferred data is stored as a database 100 in the base station computer 3. The base station computer 3 reads the data stored in the database 100 for each hydraulic excavator, calculates a working time of a part belonging to each section on the basis of the working time of that section, and compares the calculated working time with a preset target replacement time interval of the relevant part, thereby calculating a remaining time up to next replacement of the relevant part and managing the scheduled replacement timing thereof. Thus, the appropriate scheduled replacement timing of parts can be determined even in a construction machine having a plurality of sections that differ in working time from each other.

    摘要翻译: 在田间工作的液压挖掘机1包括控制器2,用于测量发动机32,前15,摆动体13和行驶体12的工作时间,将测量数据存储在控制器2的存储器中,以及 然后通过卫星通信,FD等将其传送到基站计算机3.将传送的数据作为数据库100存储在基站计算机3中。基站计算机3读取存储在数据库100中的每个液压的数据 挖掘机根据该部分的工作时间计算属于每个部分的部分的工作时间,并将计算出的工作时间与相关部分的预设目标更换时间间隔进行比较,从而计算直至下一个的剩余时间 更换相关部件并管理其定时更换时间。 因此,即使在具有彼此不同的工作时间的多个部分的建筑机械中,也可以确定部件的适当的计划更换定时。

    Hydraulic control system
    64.
    发明授权
    Hydraulic control system 失效
    液压控制系统

    公开(公告)号:US5758499A

    公开(公告)日:1998-06-02

    申请号:US714046

    申请日:1996-09-05

    摘要: A hydraulic control system is intended to easily hydraulically back up a trouble caused in an electric system, while employing a control unit (13) to utilize the advantage of electric control, when the displacement of a hydraulic pump (1) is controlled in accordance with a status variable of a hydraulic driving system. To this end, a pump regulator (16) is constructed so as to increase the tilting amount .theta. of a swash plate (1a) with a reduction in pressure of a second hydraulic signal Pc. A characteristic of the pump regulator is set such that a negative control pressure Pco can be employed to operate the pump regulator in place of the second hydraulic signal, and characteristics of a fixed throttle (10) and a spring (18d) in the pump regulator are set such that the pump regulator can be operated in the working range of the negative control pressure. The control unit (13) sets a modified negative control pressure Pc1 as a target value of the second hydraulic signal and determines a second electric signal E corresponding to the target value in a block (102), so that the working range of the second hydraulic signal generated by the solenoid proportional valve (15) is substantially at the same level as the working range of the negative control pressure.

    摘要翻译: PCT No.PCT / JP96 / 00498 Sec。 371日期:1996年9月5日 102(e)1996年9月5日PCT PCT 1996年1月3日PCT公布。 公开号WO96 / 27741 日期1996年9月12日液压控制系统旨在轻松地液压备用电气系统中的故障,同时采用控制单元(13)利用电气控制的优点,当液压泵(1) 根据液压驱动系统的状态变量进行控制。 为此,泵调节器(16)构造成随着第二液压信号Pc的压力的降低而增加斜盘(1a)的倾斜量θ。 泵调节器的特征被设定为使得可以使用负控制压力Pco来代替第二液压信号来操作泵调节器,并且泵调节器中的固定节气门(10)和弹簧(18d)的特性 被设置为使得泵调节器可以在负控制压力的工作范围内操作。 控制单元(13)将修正的负控制压力Pc1设定为第二液压信号的目标值,并且确定与块(102)中的目标值相对应的第二电信号E,使得第二液压 由电磁比例阀(15)产生的信号基本上与负控制压力的工作范围相同。

    Hydraulic pump control system
    65.
    发明授权
    Hydraulic pump control system 失效
    液压泵控制系统

    公开(公告)号:US5575148A

    公开(公告)日:1996-11-19

    申请号:US454270

    申请日:1995-06-07

    IPC分类号: E02F9/22 F16D31/02

    摘要: A controller 24 includes function generators 151, 152. The function generator 151 is set to have such a characteristic that as the detected value P.sub.N of a negative control pressure from a pressure sensor 21 is reduced, a first target tilting amount .theta..sub.N increases from a minimum value to a maximum value, and the function generator 152 is set to have such a characteristic that as the detected value P.sub.B of a control input (pilot pressure) for driving a boom cylinder 6 is increased, a second target tilting amount .theta..sub.B increases from a predetermined minimum value to the same maximum value as the above maximum value. Minimum one of the two target tilting amounts from both the function generators is selected, and a proportional solenoid valve 25 is driven based on the selected minimum tilting amount. This makes it possible to surely suppress an unwanted speed increase of a specific hydraulic actuator other than a boom cylinder, such as a swing motor 9, that would be caused when the tilting amount is controlled based on only the negative control pressure.

    摘要翻译: PCT No.PCT / JP94 / 02008 Sec。 371日期:1995年6月7日 102(e)日期1995年6月7日PCT 1994年11月30日PCT PCT。 WO95 / 15441 PCT出版物 日期:1995年6月8日控制器24包括功能发生器151,152。功能发生器151被设定为具有这样的特性:当来自压力传感器21的负控制压力的检测值PN减小时,第一目标倾斜量 θN从最小值增加到最大值,并且函数发生器152被设置为具有如下特征:当用于驱动动臂缸6的控制输入(先导压力)的检测值PB增加时,第二目标 倾斜量θB从预定的最小值增加到与上述最大值相同的最大值。 选择来自功能发生器的两个目标倾斜量中的最小一个,并且基于所选择的最小倾斜量来驱动比例电磁阀25。 由此,能够可靠地抑制在仅基于负的控制压力来控制倾斜量时将产生的例如回转马达9以外的特定液压致动器的不希望的速度增加。

    Valve apparatus and hydraulic drive system
    66.
    发明授权
    Valve apparatus and hydraulic drive system 失效
    阀门装置和液压驱动系统

    公开(公告)号:US5471839A

    公开(公告)日:1995-12-05

    申请号:US536663

    申请日:1990-07-09

    摘要: A valve apparatus has a casing (11; 41) formed therein with at least one pair of spool bores (12a, 13c, etc.; 42a, 43a), a single common pump port (19), at least one tank port (16t) and a plurality of actuator ports (22a, 23a, etc.) including a pair of actuator ports communicating with each of the spool bores, and a plurality of spools (14a, 15a, etc.; 44a, 45a) slidably inserted respectively in the spool bores in the casing. Each of the spools control communication between the common pump port and tank port and the corresponding pair of the actuator ports. The common pump port is arranged to communicate with a common pump line (18) which is formed between the pair of spool bores and spools arranged in juxtaposed relation to each other so as to intersect a plane in which the axes of the pairs of spool bores extend.

    摘要翻译: PCT No.PCT / JP90 / 00391 Sec。 371 1990年7月9日第 102(e)1990年7月9日PCT PCT 1990年3月23日PCT公布。 出版物WO90 / 11464 一种阀装置,具有在其中形成有至少一对卷轴孔(12a,13c等; 42a,43a),单个公共泵口(19), 至少一个罐口(16t)和多个致动器端口(22a,23a等),包括与每个卷轴孔连通的一对致动器端口,以及多个卷轴(14a,15a等; 44a ,45a)分别可滑动地插入到壳体中的卷轴孔中。 每个阀芯控制公共泵口和油箱端口与相应的一对执行器端口之间的通信。 公共泵口被布置成与公共泵管线(18)连通,该公共泵管线(18)形成在彼此并置的一对卷筒孔和卷轴之间,以便与一对卷轴孔的轴线相交的平面相交 延伸。

    Hydraulic drive system for hydraulic working machines
    67.
    发明授权
    Hydraulic drive system for hydraulic working machines 失效
    液压工程机液压驱动系统

    公开(公告)号:US5447027A

    公开(公告)日:1995-09-05

    申请号:US302786

    申请日:1994-09-12

    摘要: A hydraulic drive system comprises a controller (12) and several condition sensors. A boom-up target flow rate setting section determines a boom-up target flow rate based on signals from a pressure sensor (11) and a rotational speed meter (16), a pump delivery rate detecting section determines a pump delivery rate based on signals from a tilt angle sensor (15) and the rotational speed meter (16), a differential pressure detecting section and a center bypass flow rate calculating section determine a center bypass flow rate based on signals from pressure sensors (9, 10), a boom cylinder calculating section determines a boom cylinder flow rate from the pump delivery rate and the center bypass flow rate, and a first pump target displacement volume calculating section calculates a first pump target tilt angle .theta..sub.1 in accordance with the difference between the boom-up target flow rate and the boom cylinder flow rate. In this case, .theta..sub.1 is larger than a second pump target tilt angle .theta..sub.2 for negative control and is selected by a maximum value selecting section. Then, a minimum value selecting section selects the smaller one of .theta..sub.1 and a maximum tilt angle .theta..sub.max determined with horsepower control, and drive signal generating section outputs a corresponding target current to a solenoid proportional valve (13) for driving a piston (6a) of a regulator (6) to the right in FIG. 4.

    摘要翻译: PCT No.PCT / JP94 / 00464 Sec。 371日期1994年9月12日 102(e)1994年9月12日PCT PCT 1994年3月23日PCT公布。 出版物WO94 / 21925 日期1994年9月29日。液压驱动系统包括控制器(12)和几个状态传感器。 动臂上升目标流量设定部基于来自压力传感器(11)和转速计(16)的信号来确定动臂上升目标流量,泵输送速度检测部基于信号来确定泵输送速度 从倾斜角传感器(15)和转速计(16),差压检测部和中心旁通流量计算部基于来自压力传感器(9,10),吊杆(9,10)的信号来确定中心旁通流量 气缸计算部根据泵输送速度和中心旁通流量来确定起重臂液压缸流量,第一泵目标排量体积计算部根据悬臂上升目标的差计算第一泵目标倾斜角θ1 流量和动臂缸流量。 在这种情况下,θ1大于用于负控制的第二泵目标倾斜角θ2,并且由最大值选择部选择。 然后,最小值选择部选择通过马力控制确定的θ1中的较小值和最大倾斜角θmax,驱动信号生成部将用于驱动活塞(6a)的电磁比例阀(13)输出对应的目标电流 )在图1中右侧的调节器(6)。 4。

    Valve apparatus and hydraulic drive system
    68.
    发明授权
    Valve apparatus and hydraulic drive system 失效
    阀门装置和液压驱动系统

    公开(公告)号:US5203678A

    公开(公告)日:1993-04-20

    申请号:US655368

    申请日:1991-02-28

    IPC分类号: E02F9/22 F15B13/04

    摘要: A valve apparatus has a flow control valve having a supply passage communicating with a hydraulic fluid supply source, a load passage communicating with an actuator, and a first meter-in variable restrictor disposed between the supply passage and the load passage and opened dependent on an operation amount there; a first signal passage located downstream of the first variable restrictor and having a passage section for detecting load pressure of the actuator; a tank passage communicating with a reservoir tank; a discharge passage for communicating the first signal passage with the tank passage; and a second variable restrictor provided in the discharge passage and having its opening variable dependent on the operation amount of the flow control valve to produce in the first signal passage a control pressure different from the load pressure, the control pressure in the first signal passage being led to the hydraulic fluid supply source though a second signal passage. An auxiliary restrictor is disposed in the first signal passage to reduce the load pressure detected in the passage section of the first signal passage so that a pressure lower than the detected load pressure is produced in the first signal passage as the control pressure.

    摘要翻译: PCT No.PCT / JP90 / 01407 Sec。 371日期1991年2月28日 102(e)日期1991年2月28日PCT 1990年11月1日PCT PCT。 公开号WO91 / 10833 日期:1991年7月25日。一种阀装置具有流量控制阀,该流量控制阀具有与液压流体供给源连通的供给通道,与致动器连通的负载通道,以及设置在供给通道和 负载通道和开启取决于操作量; 第一信号通道,位于第一可变节流器的下游,并具有用于检测致动器的负载压力的通道部分; 与储罐连通的罐通道; 用于使第一信号通道与油箱通道连通的排出通道; 以及第二可变节流器,其设置在所述排出通道中,其开口变化取决于所述流量控制阀的操作量,以在所述第一信号通道中产生与所述负载压力不同的控制压力,所述第一信号通道中的控制压力为 通过第二个信号通道导致液压流体供应源。 辅助限制器设置在第一信号通道中以减小在第一信号通道的通道部分中检测到的负载压力,使得在第一信号通道中产生低于检测到的负载压力的压力作为控制压力。

    Direction selector valve having load-sensing function
    69.
    发明授权
    Direction selector valve having load-sensing function 失效
    方向选择阀具有负载感应功能

    公开(公告)号:US5161575A

    公开(公告)日:1992-11-10

    申请号:US717537

    申请日:1991-06-19

    摘要: There is disclosed a direction selector valve having function of detecting load. The valve is used in a hydraulic system. A spool has two passage holes extending axially partially through the spool from both side ends. These two passage holes have their respective high-pressure holes. When the spool is in its neutral position, the high-pressure holes are closed off by spool hole walls between bridge ports and actuator ports. The two passage holes further include low-pressure holes which are in communication with tank ports via load check valves mounted in the passage holes, respectively. Guide holes are formed near the front end of one passage hole and in communication with a load-sensing port. A restriction portion is formed on the outer surface of the spool adjacently to the guide holes to control the flow from the load-sensing port to the tank ports. First guide holes and second guide holes which are close to each other are formed near the front end of the other passage hole. The first guide holes are in communication with the load-sensing port even when the spool is in its neutral position. The second guide holes are placed in communication with the load-sensing port after the spool has shifted from its neutral position, connecting the high-pressure holes with the bridge ports. This structure smoothly responds to the load pressure in the actuator.

    摘要翻译: 公开了一种具有检测负载功能的方向选择阀。 阀门用于液压系统。 阀芯具有从两侧端部轴向部分地穿过阀芯延伸的两个通道孔。 这两个通孔具有各自的高压孔。 当阀芯处于其中性位置时,高压孔由桥接口和执行器端口之间的阀芯孔封闭。 两个通道孔还包括分别通过安装在通孔中的负载止回阀与罐口连通的低压孔。 在一个通孔的前端附近形成导向孔,并与负载传感端口连通。 限制部分形成在与引导孔相邻的卷轴的外表面上,以控制从负载感测端口到罐口的流动。 在另一个通孔的前端附近形成彼此靠近的第一导向孔和第二引导孔。 即使当阀芯处于其中立位置时,第一引导孔也与负载感测端口连通。 在阀芯已经从其中立位置移动之后,第二引导孔与负载感测端口连通,将高压孔与桥接口连接。 该结构平滑地响应致动器中的负载压力。

    Hydraulic drive system for civil engineering and construction machine
    70.
    发明授权
    Hydraulic drive system for civil engineering and construction machine 失效
    公路工程施工机械液压驱动系统

    公开(公告)号:US5150574A

    公开(公告)日:1992-09-29

    申请号:US573138

    申请日:1990-09-24

    IPC分类号: E02F9/22 F15B13/04

    摘要: A hydraulic drive system for a construction machine has a flow control valve (5) disposed between a hydraulic pump and an acutator, a pressure compensating valve for controlling a differential pressure across the flow control valve, and a pump delivery rate regulator for controlling a flow rate of the hydraulic fluid delivered from the hydraulic pump dependent on a differential pressure (Pd-PLS) between a pump pressure and a load pressure of the actuator. The pressure compensating valve has a valve body subjected to control forces. A first control force based on the differential pressure across the flow control valve to the valve body urges the valve body in the valve-closing direction. A second predetermined control force urges the valve body in the valve-operating direction; and a third control force based on the differential pressure (Pd-PLS) between the pump pressure and the load pressure of the actuator urges the valve body in the valve-opening direction.

    摘要翻译: PCT No.PCT / JP90 / 00573 Sec。 371 1990年9月24日第 102(e)1990年9月24日PCT PCT 1990年5月1日PCT公布。 WO90 / 13748 PCT公开 日本1990年11月15日。一种用于建筑机械的液压驱动系统具有设置在液压泵和辅助器之间的流量控制阀(5),用于控制流量控制阀两端的压差的压力补偿阀,以及泵 输送速率调节器,用于根据泵压力和致动器的负载压力之间的差压(Pd-PLS)控制从液压泵输送的液压流体的流量。 压力补偿阀具有经受控制力的阀体。 基于流量控制阀与阀体两端的差压的第一控制力在阀关闭方向上推动阀体。 第二预定控制力促使阀体处于阀操作方向; 并且基于泵压力和致动器的负载压力之间的差压(Pd-PLS)的第三控制力促使阀体沿阀打开方向。