专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2013124763A Hydraulic driving device for working machine 有权
标题翻译：液压驱动装置
公开(公告)号：JP2013124763A
公开(公告)日：2013-06-24
申请号：JP2011275726
申请日：2011-12-16
申请人： Kobelco Cranes Co Ltd , コベルコクレーン株式会社 , Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： KONDO DAIYU , MICHIDA TAKAHARU , YAMAGATA KATSUMI , HORI NAOTO , KITAKADO NAOYA , MAEKAWA TOMOHITO , SUGANO NAOKI
IPC分类号： F15B11/04 , B66D1/44 , F15B11/08
CPC分类号： F15B9/08 , F15B11/044 , F15B21/047 , F15B2211/3116 , F15B2211/3157 , F15B2211/329 , F15B2211/353 , F15B2211/46 , F15B2211/7058 , F15B2211/75 , F15B2211/761 , F15B2211/8609
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic driving device for working machine, preventing an excessive decrease in pressure on a meter-in side and moving a load at a stable speed in a lowering direction, without using a counterbalance valve.SOLUTION: The hydraulic driving device for working machine includes: a hydraulic pump 2; a hydraulic actuator 4 which is driven in a direction of lowering a load; an operation device 6 which is operated in order to specify operation speed; a working hydraulic circuit including a meter-in flow passage for guiding hydraulic oil to the hydraulic actuator when driven in the direction of lowering the load and a meter-out flow passage for guiding the hydraulic oil discharged from the hydraulic actuator to a tank; a control valve 5 which changes the supply state of the hydraulic oil so as to actuate the hydraulic actuator at a speed specified by the operation device; meter-in flow adjusters 3, 9 and a meter-out flow adjuster 10 which adjust a meter-in flow rate and meter-out flow rate to flow rates corresponding to the speeds specified by the operation devices respectively; and a relief valve 16.
摘要翻译：要解决的问题：为了提供一种用于作业机械的液压驱动装置，在不使用平衡阀的情况下，防止在进入侧的压力的过度降低和以下降方向以稳定的速度移动负载。解决方案：工作机械的液压驱动装置包括：液压泵2; 液压致动器4，其在降低负载的方向上被驱动; 操作装置6，其操作以指定操作速度; 工作液压回路，其包括用于在将液压致动器沿着降低负载的方向驱动时将液压油引导到液压致动器的流入通道，以及用于将从液压致动器排出的液压油引导到罐的出口流路; 控制阀5，其改变液压油的供给状态，以便以由操作装置指定的速度致动液压致动器; 流量调节器3,9和流出量流量调节器10，其将流量和流出流量调节到分别对应于由操作装置指定的速度的流量; 和安全阀16.版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2013072444A Hydraulic driving apparatus for working machine 有权
标题翻译：液压驱动装置
公开(公告)号：JP2013072444A
公开(公告)日：2013-04-22
申请号：JP2011209678
申请日：2011-09-26
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所 , Kobelco Cranes Co Ltd , コベルコクレーン株式会社
发明人： SUGANO NAOKI , MAEKAWA TOMOHITO , MICHIDA TAKAHARU , KONDO DAIYU , KITAKADO NAOYA , HORI NAOTO
IPC分类号： F15B11/02 , B66D1/44 , F15B11/024
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic driving apparatus for working machine, which prevents a pressure drop on a meter-in side and stably lowers a load.SOLUTION: There is provided the hydraulic driving apparatus for the working machine comprising a hydraulic pump 2, an engine 1, a hydraulic actuator 4, a manipulation device 6, a hydraulic circuit for work including a meter-in flow passage and a meter-out flow passage, and a regeneration flow passage 83 in down driving, a direction selector valve 3 changing a working oil supply amount according to the manipulation device 6, a meter-out flow controller 14 installed upstream from the regeneration flow passage 83, a back pressure valve 15 installed downstream from the regeneration flow passage 83, a check valve 13, and a non-regeneration operation relief valve 16 opened when the pressure of the meter-in flow passage becomes equal to or higher than set pressure. The set pressure is not less than a sum of a minimum set pressure of the back pressure valve 15, an inlet-outlet pressure difference of the meter-out flow controller 14 when the meter-out flow rate is maximum and the discharge flow rate of the hydraulic pump 2 is maximum, and an actuator pressure difference necessary for driving the hydraulic actuator 4 with no load, and not less than a maximum set pressure of the back pressure valve 15.
摘要翻译：要解决的问题：提供一种用于工作机械的液压驱动装置，其防止计量侧的压降，并且稳定地降低负载。解决方案：提供了一种用于工作机械的液压驱动装置，其包括液压泵2，发动机1，液压致动器4，操纵装置6，用于工作的液压回路，包括流入通道和流出通道和下行驱动的再生流路83，根据操作装置6改变工作油供给量的方向选择阀3，安装在再生流路83上游的排出流量控制器14，设置在再生流路83下游的背压阀15，止回阀13，以及当进入流路的压力等于或高于设定压力时打开的非再生运转溢流阀16。设定压力不小于背压阀15的最小设定压力，流出量流量最大时的出口流量控制器14的出口压力差与排出流量控制器14的排出流量之和液压泵2是最大的，并且是空载驱动液压致动器4所必需的致动器压力差，并且不小于背压阀15的最大设定压力。（C）2013，JPO＆INPIT

3. 发明专利

JP2009067578A Mobile crane 有权
标题翻译：移动式起重机
公开(公告)号：JP2009067578A
公开(公告)日：2009-04-02
申请号：JP2007240539
申请日：2007-09-18
申请人： Kobelco Cranes Co Ltd , コベルコクレーン株式会社
发明人： KITAKADO NAOYA , YAMAGATA KATSUMI
IPC分类号： B66C23/92
摘要： PROBLEM TO BE SOLVED: To provide a mobile crane capable of preventing the breakage of a mast by suppressing a lateral load generated by a mast back stop device to a lattice mast.
SOLUTION: The mast back stop device 15 for the mobile crane comprises a hydraulic cylinder 17, a hydraulic pump 18, a solenoid switching valve 19 disposed between the hydraulic pump 18 and the hydraulic cylinder 17, a controller 22 controlling the solenoid switching valve 19 according to the detection result of a pressure detector 21, and a cylinder pressure control valve 28 releasing pressure oil exceeding set pressure. Between the solenoid switching valve 19 and the hydraulic cylinder 17, a first accumulator 23 preventing the inner pressure of a cylinder side circuit 20 from exceeding mast breaking pressure Px during the switching of the solenoid switching valve 19 is installed.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过抑制由桅杆后退停止装置产生的横向载荷到格子桅杆来防止桅杆破损的移动式起重机。解决方案：用于移动式起重机的桅杆后退装置15包括液压缸17，液压泵18，设置在液压泵18和液压缸17之间的电磁换向阀19，控制电磁开关的控制器22 阀19根据压力检测器21的检测结果，以及气缸压力控制阀28释放压力油超过设定压力。在电磁切换阀19与液压缸17之间，安装有在电磁切换阀19切换期间防止气缸侧回路20的内压超过桅杆断裂压力Px的第一蓄能器23。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2012197125A Winch operating device of crane 有权
标题翻译：起重机操作装置
公开(公告)号：JP2012197125A
公开(公告)日：2012-10-18
申请号：JP2011060713
申请日：2011-03-18
申请人： Kobelco Cranes Co Ltd , コベルコクレーン株式会社
发明人： YAMAGATA KATSUMI , MICHIDA TAKAHARU , KITAKADO NAOYA
IPC分类号： B66D1/44 , F15B11/02 , F15B11/08 , F15B11/17 , F16H39/02 , F16H61/4035 , F16H61/437 , F16H61/444
摘要： PROBLEM TO BE SOLVED: To maintain a supply state of pressure oil without requiring an operator to hold a rotation angle of operation levers in a state immediately before the transition of the supply state of the pressure oil from a first state that the pressure oil is supplied from only one hydraulic pump to one hydraulic motor to a second state that the pressure oil is supplied from two hydraulic pumps to one hydraulic motor accompanied by the rotation of the operation levers.SOLUTION: A winch operating device includes medium holding mechanisms 7, 9. In the case that the supply mode of the pressure oil of a hydraulic circuit 6 is in a first supply mode, these mechanisms are brought into a holding-effective state in which medium-holding forces for applying resistance to such rotation that deviates the operation levers 12, 16 from a specific holding angle between a first set angle and a second set angle is applied to the operation levers 12, 16 when the rotation angle of the operation levers 12, 16 reaches the holding angle. In the case that the supply mode of the pressure oil of the hydraulic circuit 6 is in a second supply mode, they are brought into a holding-ineffective state that the operation levers 12, 16 are made to pass the rotation position corresponding to the holding angle without applying the medium-holding forces to the operation levers.
摘要翻译：要解决的问题：为了保持压力油的供给状态，而不需要操作者在紧接着压力油的供给状态的转变之前的状态下保持操作杆的旋转角度，所述第一状态是压力油从仅一个液压泵供应到一个液压马达到第二状态，即压力油由两个液压泵供应到伴随着操作杆旋转的一个液压马达。解决方案：绞盘操作装置包括介质保持机构7,9。在液压回路6的压力油的供给模式处于第一供给模式的情况下，这些机构进入保持有效状态其中，当操作杆12,16的旋转角度被施加到操作杆12,16时，施加抵抗这种旋转的中等夹持力将操作杆12,16从第一设定角度和第二设定角度之间的特定保持角度偏移操作杆12,16达到保持角度。在液压回路6的压力油的供给模式处于第二供给模式的情况下，使操作杆12,16成为与保持对应的旋转位置通过的保持状态而不对操作杆施加介质夹持力。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2009161275A Lever operational reaction force controller of construction machine 有权
标题翻译：施工机械操纵反应控制器
公开(公告)号：JP2009161275A
公开(公告)日：2009-07-23
申请号：JP2007339929
申请日：2007-12-28
申请人： Kobelco Cranes Co Ltd , コベルコクレーン株式会社
发明人： KITAKADO NAOYA , YAMAGATA KATSUMI
IPC分类号： B66C13/56 , B66C13/20 , B66C23/86 , F15B11/08 , F15B13/042 , F15B13/14
摘要： PROBLEM TO BE SOLVED: To provide a lever operational reaction force controller of a construction machine capable of allowing an operator to feel the operational reaction force of an operation lever not only during the tilting operation of the operation lever but also during the returning operation to the neutral position. SOLUTION: The lever operational reaction force controller of the construction machine includes a reaction force mechanism 30 having an acceleration reaction force imparting unit for imparting the operational reaction force to an operation lever 6 according to the operational hydraulic pressure to be supplied when the operation lever 6 is tiled from the neutral position, and a deceleration reaction force imparting unit for imparting the operational reaction force to the operation lever 6 according to the operational hydraulic pressure to be supplied when returning the operation lever 6 from the tilted state to the neutral position, a turning state detection means 90 for detecting whether an upper turning body 104 is during acceleration or during deceleration, and a controller 9 for controlling an operational pressure changing means 8 based on the result of detection so that the operational hydraulic pressure is supplied to the acceleration reaction force imparting unit when the upper turning body 104 is during acceleration, and the operational hydraulic pressure is supplied to the deceleration reaction force imparting unit when the upper turning body 104 is during deceleration. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种施工机械的操纵杆操作反作用力控制器，其能够使操作者不仅在操作杆的倾转操作期间而且在返回期间感觉到操作杆的操作反作用力操作到中立位置。解决方案：施工机械的操纵杆操作反作用力控制装置具有反作用力机构30，该反作用力机构30具有加速度反作用力赋予装置，用于根据操作杆6向操作杆6施加操作反作用力，操作杆6从中立位置平铺;以及减速反作用力施加单元，用于在将操作杆6从倾斜状态返回到中立位置时根据要供给的操作液压施加操作反作用力位置，用于检测上部转动体104是否在加速期间或减速期间的转动状态检测装置90，以及用于基于检测结果控制操作压力改变装置8的控制器9，以将操作液压提供给加速反作用力施加单位时上部转向主体104在加速期间，当上部转动体104处于减速状态时，向减速反作用力赋予部供给运转液压。版权所有（C）2009，JPO＆INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式