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1. 发明专利

JP2009107621A Control device for input clutch of work vehicle 有权
标题翻译：输入离合器的控制装置
公开(公告)号：JP2009107621A
公开(公告)日：2009-05-21
申请号：JP2008310941
申请日：2008-12-05
申请人： Komatsu Ltd , 株式会社小松製作所
发明人： SATO KICHIJI , ITO KENTARO , TAKIGUCHI TAKAHIDE
IPC分类号： B60W10/02 , B60T7/00 , B60T13/12 , B60W10/18 , B60W10/184
CPC分类号： B60W30/18109 , B60T10/02 , B60W10/02 , B60W10/18 , F16D48/04 , F16D2048/0209 , F16D2048/0224 , F16D2048/0281 , F16D2048/0287 , F16D2500/1112 , F16D2500/70217 , F16D2500/70235
摘要： PROBLEM TO BE SOLVED: To easily adjust a relationship between clutch pressure of an input clutch and braking force (brake pressure) generated by a brake device to a desired relationship, by a simple structure. SOLUTION: A device which can easily adjust the relationship between the clutch pressure of the input clutch and the braking force (the brake pressure) generated by the brake device to the desired relationship by the simple structure is provided with a draining oil passage which is branched from an oil passage for supplying pressure oil to the input clutch, and the draining oil passage is communicated with a tank. The draining oil passage is provided with a pressure reducing valve which increases the pressure oil flowing through the draining oil passage depending on the valve position to reduce the clutch pressure of the input clutch. A brake operating means is mechanically coupled with a valve operating member (spool) of the pressure reducing valve, and the valve operating member of the pressure reducing valve is mechanically coupled with a valve operating member (spool) of a brake control valve by, for example, a spring. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过简单的结构，可以容易地将输入离合器的离合器压力和由制动装置产生的制动力（制动压力）之间的关系调节到期望的关系。解决方案：通过简单的结构，可以容易地调节输入离合器的离合器压力与制动装置产生的制动力（制动压力）之间的关系到期望的关系的装置设置有排水油通道其从用于向输入离合器供给压力油的油路分支，并且排出油通道与罐连通。排水油通道设置有减压阀，该减压阀根据阀位置增加流经排油道的压力油，以减小输入离合器的离合器压力。制动器操作装置与减压阀的阀操作构件（阀芯）机械联接，并且减压阀的阀操作构件与制动控制阀的阀操作构件（阀芯）机械联接，用于例如，春天。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2005155242A Hydraulic circuit for suppressing traveling vibration of wheel type construction machine 有权
标题翻译：液压电路，用于抑制轮式建筑机械的行驶振动
公开(公告)号：JP2005155242A
公开(公告)日：2005-06-16
申请号：JP2003397648
申请日：2003-11-27
申请人： Komatsu Ltd , 株式会社小松製作所
发明人： TAKIGUCHI TAKAHIDE
IPC分类号： E02F9/22
CPC分类号： E02F9/2207 , E02F9/2217
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic circuit for suppressing traveling vibrations of wheel type construction machines, which can obtain a stable vibration suppressing function in switching from a nonoperating state to an operating state.
SOLUTION: A one-way valve is provided in a first circuit for connecting an ejection circuit of a hydraulic pump and an accumulator together. Switching valves are provided on the first circuit, and among a second circuit which is connected to the bottom side of a boom hydraulic cylinder, a third circuit which is connected to the head side of the boom hydraulic cylinder, and a drain circuit which is connected to an oil storage tank. The switching valve, which has three positions, that is, a traveling position A, an accumulator decompression position B and a working position C, can move among the positions. A controller inputs detection values of first and second pressure sensors, operates the switching valve (32), and performs control so that hydraulic pressure of the accumulator and bottom pressure of the boom hydraulic cylinder can be constantly equal to each other.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于抑制车轮式施工机械的行驶振动的液压回路，其能够在从非操作状态切换到运转状态时获得稳定的振动抑制功能。解决方案：在第一回路中提供单向阀，用于将液压泵和蓄液器的喷射回路连接在一起。切换阀设置在第一回路上，并且在连接到起重臂液压缸的底侧的第二回路中，连接到动臂液压缸的头侧的第三回路和连接到第一回路的排水回路到储油罐。具有三个位置的切换阀，即行进位置A，蓄能器减压位置B和工作位置C，可以在位置之间移动。 A控制器输入第一和第二压力传感器的检测值，操作切换阀（32），进行控制，使得蓄液器的液压和起重臂液压缸的底部压力能够恒定地彼此相等。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2005155230A Hydraulic circuit for suppressing traveling vibration of wheel type construction machine 审中-公开
标题翻译：液压电路，用于抑制轮式建筑机械的行驶振动
公开(公告)号：JP2005155230A
公开(公告)日：2005-06-16
申请号：JP2003397184
申请日：2003-11-27
申请人： Komatsu Ltd , 株式会社小松製作所
发明人： TAKIGUCHI TAKAHIDE
IPC分类号： E02F9/22
CPC分类号： E02F9/2207 , E02F9/2217
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic circuit for suppressing traveling vibrations of a wheel type construction machine, which can obtain a stable vibration suppressing function in switching from a nonoperating state to an operating state.
SOLUTION: A one-way valve is provided in a first circuit for connecting an ejection circuit of a hydraulic pump and an accumulator together. A first switching valve for opening/closing a circuit is provided in a second circuit for connecting the bottom side of a boom hydraulic cylinder with the accumulator. A second switching valve for opening/closing a circuit is provided in a drain circuit for connecting the accumulator with an oil storage tank. A first pressure sensor is provided on the bottom side of the boom hydraulic cylinder; a second pressure sensor is provided in the accumulator; a controller and the first pressure sensor are connected together; and the second pressure sensor and the second switching valve are connected together. The controller inputs detection values of the first and second pressure sensors, and performs control so that oil pressure of the accumulator and bottom pressure of the boom hydraulic cylinder can be constantly equal to each other by operating the second switching valve.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种用于抑制车轮式施工机械的行驶振动的液压回路，其能够在从非操作状态切换到运转状态时获得稳定的振动抑制功能。解决方案：在第一回路中提供单向阀，用于将液压泵和蓄液器的喷射回路连接在一起。用于打开/关闭电路的第一切换阀设置在用于将起重臂液压缸的底侧与蓄能器连接的第二回路中。用于打开/关闭电路的第二切换阀设置在用于将蓄能器与储油箱连接的排水回路中。第一压力传感器设置在起重臂液压缸的底侧; 蓄能器中设有第二压力传感器; 控制器和第一压力传感器连接在一起; 并且第二压力传感器和第二切换阀连接在一起。控制器输入第一压力传感器和第二压力传感器的检测值，并且通过操作第二切换阀来进行控制，使得蓄能器的油压和动臂液压缸的底部压力能够恒定地彼此相等。版权所有（C）2005，JPO＆NCIPI

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