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1. 发明授权

US5620053A Blade apparatus and its control method in bulldozer 失效
标题翻译：铲土机及其在推土机中的控制方法
公开(公告)号：US5620053A
公开(公告)日：1997-04-15
申请号：US378839
申请日：1995-01-26
申请人： Nobuhisa Kamikawa , Toshikazu Okada , Hidekazu Nagase , Naomi Kobayashi , Hiroshi Itogawa , Noriaki Namiki , Norihisa Matsumoto , Shigeru Yamamoto
发明人： Nobuhisa Kamikawa , Toshikazu Okada , Hidekazu Nagase , Naomi Kobayashi , Hiroshi Itogawa , Noriaki Namiki , Norihisa Matsumoto , Shigeru Yamamoto
IPC分类号： E02F3/84 , E02F3/85 , E02F9/20 , E02F9/22 , E02F3/76
CPC分类号： E02F9/2292 , E02F3/7618 , E02F3/844 , E02F9/2004 , E02F9/2296
摘要： A hydraulic drive system for the pitch cylinders (4A, 4B) of a bulldozer blade apparatus can include (a) main hydraulic pumps (30A, 30B) and an assistant hydraulic pump (31) to make up the assistant hydraulic circuit, (b) variable displacement hydraulic pumps (21A, 21B), or (c) fixed displacement hydraulic pumps (30A, 30B) and a plurality of solenoid selector valves such that the pitch cylinders can be connected in series. The assistant hydraulic pump (31) is connectable to delivery lines of the main hydraulic pumps through an assistant solenoid selector valve (32) which is controlled by an external signal. The blade (10) can be formed so that a line (14) tangential to the lower edge of the curved panel of the blade is inclined rearwardly with respect to the front face (13) of the blade edge member (12). Earth-moving work can be performed by inclining the blade (10) rearwardly by an angle (.theta..sub.1) with respect to its posture in digging work, and earth-dumping work can be performed by inclining the blade (10) forwardly by an angle (.theta..sub.2) with respect to its posture in digging work. The coupling positions of the two pitch cylinders (4A, 4B) can be in asymmetrical relation to each other. Control signals can be provided by a blade lever (23), tilt/pitch changeover switch (24), and pitch speed changeover switch (25). The tilt/pitch changeover switch (24) and pitch speed changeover switch (25) can be replaced by pitch-dump selector switch (25A) and pitch-back selector switch (24A).
摘要翻译：用于推土机叶片装置的变桨缸（4A，4B）的液压驱动系统可以包括：（a）主液压泵（30A，30B）和辅助液压泵（31），以组成辅助液压回路;（b）可变排量液压泵（21A，21B）或（c）固定排量液压泵（30A，30B）和多个电磁选择阀，使得变桨缸可以串联连接。辅助液压泵（31）可通过由外部信号控制的辅助电磁换向阀（32）连接到主液压泵的输送管线。叶片（10）可以形成为使得与叶片的弯曲面板的下边缘相切的线（14）相对于叶片边缘构件（12）的前表面（13）向后倾斜。地面移动作业可以通过在挖掘作业中将叶片（10）相对于其姿势向后倾斜角度（θ1）来执行，并且可以通过将叶片（10）向前倾斜角度（θ2）相对于其在挖掘工作中的姿势。两个变桨缸（4A，4B）的联接位置可以彼此不对称。控制信号可由叶片杆（23），倾斜/俯仰切换开关（24）和俯仰速度转换开关（25）提供。俯仰/俯仰切换开关（24）和俯仰速度切换开关（25）可以由倾倒切换选择开关（25A）和俯仰式选择开关（24A）代替。

2. 发明授权

US5983151A Tractive force control apparatus and method for construction equipment 失效
标题翻译：牵引力控制装置及施工设备方法
公开(公告)号：US5983151A
公开(公告)日：1999-11-09
申请号：US849182
申请日：1997-05-28
申请人： Toshikazu Okada , Hidekazu Nagase , Shigeru Yamamoto , Noriaki Namiki , Nobuhisa Kamikawa
发明人： Toshikazu Okada , Hidekazu Nagase , Shigeru Yamamoto , Noriaki Namiki , Nobuhisa Kamikawa
IPC分类号： E02F3/84 , E02F3/85 , E02F9/22 , F02D29/04 , F04B49/00 , F15B11/08 , F15B11/00
CPC分类号： F02D29/04
摘要： A tractive force control apparatus and method for preventing a torque converter from being stalled while a working machine is operated during excavation and earth carrying work using a construction machine. In this apparatus, an engine rotational speed sensor (2), a torque converter output shaft rotational speed sensor (4) and a lift combination solenoid valve (12) are connected to a control apparatus. A pilot pressure control valve (11) for a blade lift is connected to a first lift operating valve (13), and also to a second lift operating valve (14) via the lift combination solenoid valve (12). First and second hydraulic pumps (20, 21) and lift cylinders (15, 15) are connected respectively via the first and second lift operating valves (13, 14). A traction output is computed in the control apparatus (16), and, when the traction output is lower than a target level, the lift combination solenoid valve (12) is turned off to reduce a flow rate of oil to the lift cylinders (15, 15). The traction force is thus increased correspondingly to prevent a torque converter (3) from being stalled.
摘要翻译： PCT No.PCT / JP95 / 02374 371日期1997年5月28日 102（e）日期1997年5月28日PCT提交1995年11月21日PCT公布。公开号WO96 / 17136 日期1996年6月6日一种牵引力控制装置和方法，用于在使用建筑机械的挖掘和承载作业期间在工作机械运行时防止变矩器停转。在该装置中，发动机转速传感器（2），变矩器输出轴转速传感器（4）和升降组合电磁阀（12）连接到控制装置。用于叶片提升的先导压力控制阀（11）连接到第一提升操作阀（13），并且还经由提升组合电磁阀（12）连接到第二提升操作阀（14）。第一和第二液压泵（20,21）和提升缸（15,15）分别经由第一和第二提升操作阀（13,14）连接。在控制装置（16）中计算牵引输出，并且当牵引输出低于目标水平时，提升组合电磁阀（12）被关闭以降低到提升缸（15）的油流量，15）。因此，相应地增加牵引力以防止变矩器（3）停转。

3. 发明授权

US5799737A Blade apparatus and its control method in bulldozer 失效
标题翻译：铲土机及其在推土机中的控制方法
公开(公告)号：US5799737A
公开(公告)日：1998-09-01
申请号：US777619
申请日：1996-12-31
申请人： Nobuhisa Kamikawa , Naomi Kobayashi , Noriaki Namiki , Norihisa Matsumoto
发明人： Nobuhisa Kamikawa , Naomi Kobayashi , Noriaki Namiki , Norihisa Matsumoto
IPC分类号： E02F3/84 , E02F3/85 , E02F9/20 , E02F9/22 , E02F3/76
CPC分类号： E02F9/2292 , E02F3/7618 , E02F3/844 , E02F9/2004 , E02F9/2296
摘要： A hydraulic drive system for the pitch cylinders (4A, 4B) of a bulldozer blade apparatus can include (a) main hydraulic pumps (30A, 30B) and an assistant hydraulic pump (31) to make up the assistant hydraulic circuit, (b) variable displacement hydraulic pumps (21A, 21B), or (c) fixed displacement hydraulic pumps (30A, 30B) and a plurality of solenoid selector valves such that the pitch cylinders can be connected in series. The assistant hydraulic pump (31) is connectable to delivery lines of the main hydraulic pumps through an assistant solenoid selector valve (32) which is controlled by an external signal. The blade (10) can be formed so that a line (14) tangential to the lower edge of the curved panel of the blade is inclined rearwardly with respect to the front face (13) of the blade edge member (12). Earth-moving work can be performed by inclining the blade (10) rearwardly by an angle (.theta..sub.1) with respect to its posture in digging work, and earth-dumping work can be performed by inclining the blade (10) forwardly by an angle (.theta..sub.2) with respect to its posture in digging work. The coupling positions of the two pitch cylinders (4A4B) can be in asymmetrical relation to each other. Control signals can be provided by a blade lever (23), tilt/pitch changeover switch (24), and pitch speed changeover switch (25). The tilt/pitch changeover switch (24) and pitch speed changeover switch (25) can be replaced by pitch-dump selector switch (25A) and pitch-back selector switch (24A).
摘要翻译：用于推土机叶片装置的变桨缸（4A，4B）的液压驱动系统可以包括：（a）主液压泵（30A，30B）和辅助液压泵（31），以组成辅助液压回路;（b）可变排量液压泵（21A，21B）或（c）固定排量液压泵（30A，30B）和多个电磁选择阀，使得变桨缸可以串联连接。辅助液压泵（31）可通过由外部信号控制的辅助电磁换向阀（32）连接到主液压泵的输送管线。叶片（10）可以形成为使得与叶片的弯曲面板的下边缘相切的线（14）相对于叶片边缘构件（12）的前表面（13）向后倾斜。地面移动作业可以通过在挖掘作业中将叶片（10）相对于其姿势向后倾斜角度（θ1）来执行，并且可以通过将叶片（10）向前倾斜角度（θ2）相对于其在挖掘工作中的姿势。两个变桨缸（4A4B）的联接位置可以彼此不对称。控制信号可由叶片杆（23），倾斜/俯仰切换开关（24）和俯仰速度转换开关（25）提供。俯仰/俯仰切换开关（24）和俯仰速度切换开关（25）可以由倾倒切换选择开关（25A）和俯仰式选择开关（24A）代替。

4. 发明授权

US5862868A Bulldozer blade pitch control method and controller for the same 失效
标题翻译：推土机桨叶桨距控制方法和控制器相同
公开(公告)号：US5862868A
公开(公告)日：1999-01-26
申请号：US884945
申请日：1997-06-30
申请人： Shigeru Yamamoto , Nobuhisa Kamikawa , Toshikazu Okada , Noriaki Namiki
发明人： Shigeru Yamamoto , Nobuhisa Kamikawa , Toshikazu Okada , Noriaki Namiki
IPC分类号： E02F3/85 , E02F3/84 , E02F9/22 , E02F3/76
CPC分类号： E02F3/844 , E02F3/845 , E02F9/2285 , E02F9/2292
摘要： A bulldozer blade (10) is automatically reset to a predetermined excavating pitch while the bulldozer (20) is traveling backwardly after it has completed an operation of excavating, carrying, or dumping earth. The bulldozer blade (10) can be set to an excavating pitch, a carrying pitch, or a dumping pitch when excavating, carrying, or dumping earth while the bulldozer is traveling forwardly, the bulldozer blade being attached to the leading ends of frame members (15A, 15B) which are pivotally mounted on opposite sides of the vehicle body (20a) in such a manner that the bulldozer blade can swing longitudinally. The rotational angles of left and right lifting cylinders (21A, 21B), which are attached to the bulldozer blade, are detected by first detectors (23a, 23b) while the bulldozer is traveling backwardly after it has completed an operation of excavating, carrying, or dumping earth, and the bulldozer blade is automatically reset to a predetermined excavating pitch from the carrying pitch or the dumping pitch in response to a command issued by a controller (50) which receives detection signals from the first detectors.
摘要翻译：在推土机（20）完成挖掘，搬运或倾倒地面的操作之后，推土机（20）向后行进时，推土机叶片（10）自动复位至预定的挖掘间距。推土机叶片（10）可以在推土机向前行进时挖掘，搬运或倾倒土地时设定为挖掘沥青，承载沥青或倾倒沥青，推土机叶片安装在框架构件的前端（ 15A，15B），其以使得推土机叶片能够纵向摆动的方式枢转地安装在车身（20a）的相对侧上。在推土机完成挖掘，搬运后的推进工作的同时，第一检测器（23a，23b）检测安装在推土机叶片上的左右提升缸（21A，21B）的旋转角度，或倾倒土，并且所述推土机叶片响应于从所述第一检测器接收检测信号的控制器（50）发出的命令，从所述承载节距或所述倾倒间距自动地重置为预定的挖掘间距。

5. 发明授权

US4073152A System for laying a subterranean water impervious asphalt layer 失效
标题翻译：铺设地下不透水沥青层的系统
公开(公告)号：US4073152A
公开(公告)日：1978-02-14
申请号：US580353
申请日：1975-05-23
申请人： Masatoshi Kishitani , Yoshiteru Tamagaki , Takeji Matsumoto , Mikio Sugimoto , Noriaki Namiki
发明人： Masatoshi Kishitani , Yoshiteru Tamagaki , Takeji Matsumoto , Mikio Sugimoto , Noriaki Namiki
IPC分类号： A01C23/02 , A01G25/00 , E02D3/12 , E02F5/10 , E02B5/02
CPC分类号： E02F5/10 , A01C23/025 , A01G25/00 , E02D3/12 , A01G2025/003
摘要： A system for laying a subterranean water impervious asphalt layer which is mounted on a tractor and includes a liquidized asphalt supply tank and a subterranean plough provided with a plurality of outlet ports so that liquidized asphalt is fed from the tank through a liquidized ashalt supply pipe connecting the tank to the ports by a liquidized asphalt supply pump provided in the pipe and driven by a hydraulic motor so that liquidized asphalt is discharged by the ports to form a water impervious asphalt layer into a subterranean cavity. The system is provided with a hydraulic pump driven by an engine of the tractor and connected to the hydraulic motor and a switching valve provided in the lines connecting the hydraulic pump to the hydraulic motor so that the hydraulic motor is driven in the forward or reverse direction as well as is held standstill by the actuation of the switching valve. The system is provided with a washing tank containing cleaning liquid therein, and the tank is switchingly connected to the tank through a two-way switching valve so that the pipe and the ports can be cleaned by the cleaning liquid by operating the two-way switching valve. The system further comprises a burner for heating asphalt in the tank which is supplied with fuel from the fuel tank of the engine through a fuel supply pipe by the actuation of a cock provided in the fuel supply pipe.
摘要翻译：一种用于铺设地下不透水沥青层的系统，其安装在拖拉机上并且包括一个液化沥青供应罐和一个设有多个出口的地下犁，使得液化沥青通过一个液化的灰渣供给管连接通过设置在管道中并由液压马达驱动的液化沥青供应泵将罐装入端口，使得液化沥青通过端口排出，以形成不渗水的沥青层进入地下空腔。该系统设有由拖拉机的发动机驱动并连接到液压马达的液压泵和设置在将液压泵连接到液压马达的线路中的切换阀，使得液压马达沿正向或反向驱动并且通过切换阀的致动而被停止。该系统设置有在其中容纳清洗液体的洗涤槽，并且罐通过双向切换阀切换地连接到罐，使得管和端口可以通过操作双向开关由清洗液清洁阀。该系统还包括用于加热罐中的沥青的燃烧器，其通过设置在燃料供给管中的旋塞的致动通过燃料供给管从发动机的燃料箱供给燃料。

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