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1. 发明专利

JP2005091080A Vibration testing system 审中-公开
标题翻译：振动试验系统
公开(公告)号：JP2005091080A
公开(公告)日：2005-04-07
申请号：JP2003322876
申请日：2003-09-16
申请人： Imv Corp , Imv株式会社
发明人： FUKUSHIMA TAKEHIRO , KIMITANI KOJI , TSUTSUMI SHIGEHISA
IPC分类号： G01M7/02 , H02K33/18
摘要： PROBLEM TO BE SOLVED: To prevent collision sound from occurring and the waveforms of vibrations from being affected by collision, by providing such a structure as to prevent a retainer from colliding with an end part of an outer cylindrical case in a vibration testing system.
SOLUTION: A bearing part 30 is constituted of the approximately cylindrical outer case 31 fixed to the inner circumferential surface of an inner cylinder part 28, a shaft 32 arranged in the outer cylindrical case 31 and having a tip connected and fixed to a movable body 40, a plurality of balls 33 rotation-freely in point contact with both the outer circumferential surface of the shaft 32 and the inner circumferential surface of the outer cylindrical case 31, the retainer 34 for separately holding the balls 33, and a compression coil spring 35 interposed between the end surfaces of the retainer 34 and the inner surfaces of end parts 31a of the outer cylindrical case 31. Since the retainer 34 is neutrally held by the compression coil spring 35 at all times, the retainer 34 does not collide with the end parts 31a of the outer cylindrical case 31 to generate collision sound as before and therefore does not affect oscillation waveforms.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了防止发生碰撞声和振动波形受到碰撞的影响，通过提供防止保持件在振动试验中与外筒体的端部碰撞的结构系统。解决方案：轴承部30由固定在内筒部28的内周面的近似圆筒状的外壳31，配置在外筒状壳体31内的轴32构成，并具有连接固定于可移动体40，与轴32的外周面和外筒体31的内周面旋转自如地旋转的多个滚珠33，用于分别保持滚珠33的保持器34和压缩螺旋弹簧35设置在保持器34的端面与外筒体31的端部31a的内表面之间。由于保持器34始终被压缩螺旋弹簧35中心保持，所以保持器34不会碰撞外圆柱形壳体31的端部31a如前所述产生碰撞声，因此不影响振荡波形。版权所有（C）2005，JPO＆NCIPI

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