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1. 发明专利

JP2011007781A Hydraulic system and universal testing device 有权
标题翻译：液压系统和通用测试装置
公开(公告)号：JP2011007781A
公开(公告)日：2011-01-13
申请号：JP2010114779
申请日：2010-05-18
申请人： Kokusai Keisokki Kk , 国際計測器株式会社
发明人： MATSUMOTO SHIGERU , MIYASHITA HIROSHI , TASHIRO KAZUYOSHI , MURAUCHI KAZUHIRO , TSUNODA MITSUO
IPC分类号： G01N3/08 , F15B11/028
CPC分类号： F15B11/08 , F15B2211/20515 , F15B2211/21 , F15B2211/625 , F15B2211/7052 , F15B2211/785 , G01N3/10
摘要： PROBLEM TO BE SOLVED: To provide a small universal testing device and a small hydraulic actuator.SOLUTION: A hydraulic system includes an oil tank storing a hydraulic fluid, a hydraulic actuator, and a hydraulic actuator drawing up the hydraulic fluid to feed to the hydraulic actuator. The hydraulic system includes a hydraulic fluid diverting means on the midway of a main line to feed the hydraulic pump to the hydraulic actuator, for diverting part of the hydraulic fluid fed from the hydraulic pump to return to the oil tank. Also, the universal testing device contains the hydraulic system is provided.
摘要翻译：要解决的问题：提供小型通用测试装置和小型液压致动器。解决方案：液压系统包括存储液压流体的油箱，液压致动器和液压致动器，其将液压流体拉入液压执行器。液压系统包括在主线中途的液压流体转向装置，以将液压泵输送到液压致动器，用于将从液压泵供给的液压流体的一部分转向回油箱。此外，通用测试装置还包含液压系统。

2. 发明专利

JP2010151772A Vibration testing device 有权
标题翻译：振动试验装置
公开(公告)号：JP2010151772A
公开(公告)日：2010-07-08
申请号：JP2008335796
申请日：2008-12-29
申请人： Kokusai Keisokki Kk , 国際計測器株式会社
发明人： MATSUMOTO SHIGERU , MIYASHITA HIROSHI , MURAUCHI KAZUHIRO , TSUNODA MITSUO
IPC分类号： G01M7/02
CPC分类号： G01M7/022 , G01N3/36 , G01N2203/0008 , G01N2203/0048
摘要： PROBLEM TO BE SOLVED: To provide a vibration testing device exciting a specimen by a high frequency, while applying a heavy load to the specimen, without requiring a large-size pump or a hydraulic oil tank. SOLUTION: This device includes: a pump capable of supplying a hydraulic oil in the normal/reverse both directions between a first suction/discharge port and a second suction/discharge port; a hydraulic cylinder unit including a piston, a sleeve whose internal space is partitioned into a first pressure chamber and a second pressure chamber by the piston, and a piston rod connected to the piston, whose tip is projected to the outside of the sleeve; an excitation table provided on the tip of the piston rod; and pipes for connecting the first and second pressure chambers respectively to the first and second suction/discharge ports. The piston is moved vertically by reciprocative driving of the pump in the normal and reverse directions, to thereby vibrate the specimen fixed on the excitation table. The device also includes a bypass tube for communicating each pipe; and an accumulator provided in the middle of the bypass tube, for applying a back pressure to the pressure chambers. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种振动试验装置，在对试样施加重负荷的同时，不需要大型泵或液压油箱，就可以高频激发试样。解决方案：该装置包括：能够在第一吸入口和第二吸入口与排出口之间沿正向/反向两个方向供给液压油的泵; 液压缸单元，其包括活塞，其内部空间通过活塞分隔成第一压力室和第二压力室的套筒，以及连接到活塞的活塞杆，其顶端突出到套筒的外部; 激活台设置在活塞杆的顶端; 以及用于将第一和第二压力室分别连接到第一和第二吸入/排出口的管道。活塞通过泵的正反方向的往复驱动而垂直移动，从而使固定在激励台上的试样振动。该装置还包括用于连通每个管的旁通管; 以及设置在旁通管的中间的用于向压力室施加背压的蓄能器。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2014025590A Hydraulic system 有权
标题翻译：液压系统
公开(公告)号：JP2014025590A
公开(公告)日：2014-02-06
申请号：JP2013188966
申请日：2013-09-12
申请人： Kokusai Keisokki Kk , 国際計測器株式会社
发明人： MATSUMOTO SHIGERU , MIYASHITA HIROSHI , MURAUCHI KAZUHIRO , TSUNODA MITSUO
IPC分类号： F15B11/02 , G01M7/02
CPC分类号： G01M7/022 , G01N3/36 , G01N2203/0008 , G01N2203/0048
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic system which can be driven by a high frequency without the need of a large-sized pump or a hydraulic oil tank.SOLUTION: The hydraulic system includes: a reversely operable hydraulic pump including a first suction/discharge port and a second suction/discharge port; a hydraulic cylinder unit having a piston, a sleeve whose internal space is sectioned into a first pressure chamber and a second pressure chamber by the piston, and a piston rod connected to the piston and projected to the outside of the sleeve at a distal end; first piping connecting the first pressure chamber and the first suction/discharge port; second piping connecting the second pressure chamber and the second suction/discharge port; a bypass pipe communicating the first piping and the second piping; and an accumulator provided in the middle of the bypass pipe, for applying a prescribed pressure to the first pressure chamber and the second pressure chamber. The size of the prescribed pressure is set to be larger than the lowest pressure required for driving the hydraulic cylinder unit.
摘要翻译：要解决的问题：提供一种可以高频驱动而不需要大型泵或液压油箱的液压系统。解决方案：液压系统包括：反向可操作的液压泵，其包括第一吸入/ 排出口和第二吸入口; 具有活塞的液压缸单元，其内部空间通过活塞分为第一压力室和第二压力室的套筒，以及连接到活塞并在远端突出到套筒外部的活塞杆; 连接第一压力室和第一吸入口的第一配管; 连接第二压力室和第二吸入口的第二配管; 连通第一管道和第二管道的旁通管道; 以及设置在旁通管的中间的蓄能器，用于对第一压力室和第二压力室施加规定的压力。规定压力的大小被设定为大于驱动液压缸单元所需的最低压力。

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