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1. 发明申请

US20140190159A1 SLEWING TYPE CONSTRUCTION MACHINE 有权
标题翻译：休闲型建筑机械
公开(公告)号：US20140190159A1
公开(公告)日：2014-07-10
申请号：US14105942
申请日：2013-12-13
申请人： KOBELCO CONSTRUCTION MACHINERY CO., LTD.
发明人： Kazuharu Tajima , Koji Ueda
IPC分类号： F15B11/044
CPC分类号： F15B11/0445 , E02F9/128 , F15B11/0406 , F15B2211/329 , F15B2211/50527 , F15B2211/6316 , F15B2211/6336 , F15B2211/6355 , F15B2211/7058 , F15B2211/715 , F15B2211/853
摘要： Provided is a slewing type construction machine including an upper slewing body and a slewing speed sensor that detects a slewing speed of the upper slewing body, enabling accurate control to be achieved regardless of an error in output from the slewing speed sensor. The construction machine includes an upper slewing body, a slewing motor, a hydraulic pump, a control valve, a slewing operation device, a slewing brake, a slewing speed sensor, a slewing operation detector that detects an operation applied to the slewing operation device, and a controller. The controller stores, during a slewing operation, a slewing speed detected by the slewing speed sensor at set time intervals, actuates the slewing brake based on a neutral return operation of the slewing operation device, and resets a stored value of the slewing speed that is stored during actuation of the slewing brake, to zero.
摘要翻译：提供了一种回转式施工机械，其包括上回转体和回转速度传感器，其检测上回转体的回转速度，使得能够实现精确的控制，而与来自旋转速度传感器的输出的误差无关。工程机械包括上回转体，回转马达，液压泵，控制阀，回转运转装置，回转制动器，回转速度传感器，检测施加于回转运转装置的运转的回转运转检测器，和控制器。控制器在回转操作期间以设定的时间间隔存储由回转速度传感器检测到的回转速度，基于回转操作装置的中立返回操作来启动回转制动器，并且重新设定回转速度的存储值在回转制动器的启动期间存储为零。

2. 发明授权

US10047494B2 Hydraulic control device and construction machine with same 有权
公开(公告)号：US10047494B2
公开(公告)日：2018-08-14
申请号：US14758010
申请日：2013-12-20
申请人： KOBELCO CONSTRUCTION MACHINERY CO., LTD.
发明人： Naoki Goto , Koji Ueda , Kazuharu Tajima
IPC分类号： F15B11/17 , E02F3/42 , F15B13/06 , E02F9/22 , E02F3/32
摘要： A boom cylinder circuit is provided with a boom control valve for controlling supply and discharge of hydraulic oil to and from a boom cylinder, and a merge switching valve operable to be switched between a supply position at which hydraulic oil is suppliable from a first hydraulic pump to the boom control valve, and a blocking position at which a flow of hydraulic oil is blocked. A controller switches the merge switching valve to the blocking position when a combined operation of a boom lowering operation and an arm pushing operation is detected by pilot pressure sensors, and switches the merge switching valve to the supply position when only one of the boom lowering operation and the arm pushing operation is detected.

3. 发明授权

US09790665B2 Hydraulic control device and construction machine provided with same 有权
公开(公告)号：US09790665B2
公开(公告)日：2017-10-17
申请号：US14371314
申请日：2012-12-27
申请人： KOBELCO CONSTRUCTION MACHINERY CO., LTD.
发明人： Kazuharu Tajima , Koji Ueda
IPC分类号： F15B11/17 , E02F9/22 , E02F3/43 , E02F3/32 , E02F3/42 , F15B11/16
CPC分类号： E02F9/2296 , E02F3/32 , E02F3/425 , E02F3/435 , E02F9/2235 , E02F9/2239 , E02F9/2282 , E02F9/2285 , E02F9/2292 , F15B11/165 , F15B11/167 , F15B11/17 , F15B2211/20546 , F15B2211/20576 , F15B2211/2654 , F15B2211/2656 , F15B2211/30565 , F15B2211/31511 , F15B2211/329 , F15B2211/40507 , F15B2211/41509 , F15B2211/45 , F15B2211/6316 , F15B2211/6652 , F15B2211/781
摘要： A hydraulic control device that reduces the loss of the power of a pump in combined operation of boom lowering and arm pushing. A controller performs single control of increasing capacity of a first pump in accordance with increase in an operation amount of a boom operation member, in a single operation of the boom lowering. On the other hand, the controller restricts the capacity of the first pump compared to capacity in the single control, during a restriction control period when the combined operation of boom lowering and arm pushing is detected, and the operation amount of the boom operation member is a prescribed operation amount or more.

4. 发明授权

US09587656B2 Boom driving apparatus for construction machine 有权
标题翻译：用于施工机械的动力驱动装置
公开(公告)号：US09587656B2
公开(公告)日：2017-03-07
申请号：US14399062
申请日：2013-04-11
申请人： KOBELCO CONSTRUCTION MACHINERY CO., LTD.
发明人： Koji Ueda , Kazuharu Tajima
IPC分类号： F16D31/02 , F15B15/18 , F15B11/16 , F15B21/08 , E02F3/43 , E02F9/22 , F15B11/20
CPC分类号： F15B15/18 , E02F3/435 , E02F9/2235 , E02F9/2285 , E02F9/2296 , F15B11/167 , F15B11/20 , F15B21/08 , F15B2211/411 , F15B2211/41509 , F15B2211/426 , F15B2211/45 , F15B2211/6313 , F15B2211/6316 , F15B2211/6346 , F15B2211/665 , F15B2211/6652 , F15B2211/71 , F15B2211/7107 , F15B2211/782
摘要： Provided is an apparatus for driving a boom of a construction machine, allowing required power to be reduced. The apparatus includes a boom cylinder, a variable-displacement hydraulic pump , a control valve guiding hydraulic oil discharged by the hydraulic pump to the boom cylinder, a boom-raising-operation detector boom-cylinder pressure detectors, a supply selector valve switchable between a permitting position for permitting the hydraulic oil to be supplied from the hydraulic pump a head-side chamber of the boom cylinder and a blocking position for blocking the supply, a supply oil passage permitting hydraulic oil to be supplied to the head-side chamber during the blocking, and a controller which brings the supply selector valve into the blocking position and reduces volume of the hydraulic pump upon judging that excavation reaction force extends the boom cylinder even with no supply of hydraulic oil from the hydraulic pump to the head-side chamber.
摘要翻译：提供了一种用于驱动施工机械的起重臂的装置，其允许减小所需的动力。该装置包括动臂缸，可变容量液压泵，将液压泵排放到动臂缸的液压油引导的控制阀，动臂升高操作检测器悬臂液压缸压力检测器，可切换到允许液压油从动臂缸的头侧室供给液压油，并阻止供给的阻塞位置，允许液压油通过液压油供给至头侧室的液压油即使在没有从液压泵向头侧室供给液压油的情况下，判断出挖掘反作用力延伸动臂缸也能够使供给切换阀进入阻塞位置并减小液压泵的体积。

5. 发明授权

US09366271B2 Slewing type construction machine 有权
标题翻译：回转式施工机
公开(公告)号：US09366271B2
公开(公告)日：2016-06-14
申请号：US14105942
申请日：2013-12-13
申请人： KOBELCO CONSTRUCTION MACHINERY CO., LTD.
发明人： Kazuharu Tajima , Koji Ueda
IPC分类号： F15B11/04 , F15B11/044 , E02F9/12
CPC分类号： F15B11/0445 , E02F9/128 , F15B11/0406 , F15B2211/329 , F15B2211/50527 , F15B2211/6316 , F15B2211/6336 , F15B2211/6355 , F15B2211/7058 , F15B2211/715 , F15B2211/853
摘要： Provided is a slewing type construction machine including an upper slewing body and a slewing speed sensor that detects a slewing speed of the upper slewing body, enabling accurate control to be achieved regardless of an error in output from the slewing speed sensor. The construction machine includes an upper slewing body, a slewing motor, a hydraulic pump, a control valve, a slewing operation device, a slewing brake, a slewing speed sensor, a slewing operation detector that detects an operation applied to the slewing operation device, and a controller. The controller stores, during a slewing operation, a slewing speed detected by the slewing speed sensor at set time intervals, actuates the slewing brake based on a neutral return operation of the slewing operation device, and resets a stored value of the slewing speed that is stored during actuation of the slewing brake, to zero.
摘要翻译：提供了一种回转式施工机械，其包括上回转体和回转速度传感器，其检测上回转体的回转速度，使得能够实现精确的控制，而与来自旋转速度传感器的输出的误差无关。工程机械包括上回转体，回转马达，液压泵，控制阀，回转运转装置，回转制动器，回转速度传感器，检测施加于回转运转装置的运转的回转运转检测器，和控制器。控制器在回转操作期间以设定的时间间隔存储由回转速度传感器检测到的回转速度，基于回转操作装置的中立返回操作来启动回转制动器，并且重新设定回转速度的存储值在回转制动器的启动期间存储为零。

6. 发明申请

US20150107234A1 BOOM DRIVING APPARATUS FOR CONSTRUCTION MACHINE 有权
标题翻译：建筑机械车载驱动装置
公开(公告)号：US20150107234A1
公开(公告)日：2015-04-23
申请号：US14399062
申请日：2013-04-11
申请人： KOBELCO CONSTRUCTION MACHINERY CO., LTD.
发明人： Koji Ueda , Kazuharu Tajima
IPC分类号： F15B15/18
CPC分类号： F15B15/18 , E02F3/435 , E02F9/2235 , E02F9/2285 , E02F9/2296 , F15B11/167 , F15B11/20 , F15B21/08 , F15B2211/411 , F15B2211/41509 , F15B2211/426 , F15B2211/45 , F15B2211/6313 , F15B2211/6316 , F15B2211/6346 , F15B2211/665 , F15B2211/6652 , F15B2211/71 , F15B2211/7107 , F15B2211/782
摘要： Provided is an apparatus for driving a boom of a construction machine, allowing required power to be reduced. The construction machine includes a boom cylinder 6, a variable-displacement hydraulic pump 10, a control valve 12 guiding hydraulic oil discharged by the variable-displacement hydraulic pump 10 to the boom cylinder 6, a boom-raising-operation detector 42 which detects a boom raising operation, boom-cylinder pressure detectors 46A and 46B, a supply selector valve 30 switchable between a permitting position for permitting the hydraulic oil to be supplied from the hydraulic pump 10 to a head-side chamber 6a of the boom cylinder 6 and a blocking position for blocking the supply, a supply oil passage 34 permitting hydraulic oil to be supplied to the head-side chamber 6a during the blocking, and a controller 50 which brings the supply selector valve 30 into the blocking position and reduces volume of the hydraulic pump 10 upon judging that excavation reaction force extends the boom cylinder 6 even with no supply of hydraulic oil from the hydraulic pump 10 to the head-side chamber 6a.
摘要翻译：提供了一种用于驱动施工机械的起重臂的装置，其允许减小所需的动力。施工机械包括动臂缸6，可变排量液压泵10，将由可变排量液压泵10排出的液压油引导到动臂缸6的控制阀12，动臂升降操作检测器42，起重臂升降操作，动臂缸压力检测器46A和46B，可在液压泵10向动臂缸6的前侧室6a供给液压油的允许位置之间切换的供给选择阀30，用于阻塞供应的阻塞位置，允许在堵塞期间将液压油供应到头侧室6a的供油通道34以及使供给切换阀30进入阻塞位置并减小液压容积的控制器50 即使没有从液压泵10向头侧室6a供给液压油，判断为挖掘反作用力也能够延伸动臂缸6。

7. 发明申请

US20150044007A1 HYDRAULIC CONTROL DEVICE AND CONSTRUCTION MACHINE PROVIDED WITH SAME 有权
标题翻译：液压控制装置及其构造机构
公开(公告)号：US20150044007A1
公开(公告)日：2015-02-12
申请号：US14371314
申请日：2012-12-27
申请人： KOBELCO CONSTRUCTION MACHINERY CO., LTD.
发明人： Kazuharu Tajima , Koji Ueda
IPC分类号： E02F9/22 , E02F3/43 , E02F3/32 , E02F3/42 , F15B11/17 , F15B11/16
CPC分类号： E02F9/2296 , E02F3/32 , E02F3/425 , E02F3/435 , E02F9/2235 , E02F9/2239 , E02F9/2282 , E02F9/2285 , E02F9/2292 , F15B11/165 , F15B11/167 , F15B11/17 , F15B2211/20546 , F15B2211/20576 , F15B2211/2654 , F15B2211/2656 , F15B2211/30565 , F15B2211/31511 , F15B2211/329 , F15B2211/40507 , F15B2211/41509 , F15B2211/45 , F15B2211/6316 , F15B2211/6652 , F15B2211/781
摘要： A hydraulic control device that reduces the loss of the power of a pump in combined operation of boom lowering and arm pushing. A controller performs single control of increasing capacity of a first pump in accordance with increase in an operation amount of a boom operation member, in a single operation of the boom lowering. On the other hand, the controller restricts the capacity of the first pump compared to capacity in the single control, during a restriction control period when the combined operation of boom lowering and arm pushing is detected, and the operation amount of the boom operation member is a prescribed operation amount or more.
摘要翻译：一种液压控制装置，其在动臂下降和手臂推动的组合操作中减少了泵的动力损失。在动臂下降的单次操作中，控制器根据动臂操作构件的操作量的增加来执行单次控制第一泵的增加的容量。另一方面，在检测到动臂下降和臂推动的组合操作的限制控制期间，控制器限制第一泵的容量与单次控制中的容量相比，并且动臂操作构件的操作量为规定的操作量以上。

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