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公开(公告)号：US5557216A
公开(公告)日：1996-09-17
申请号：US248907
申请日：1994-05-25
摘要： A system and method for testing an electrical generator of the type having a rotor (14) and a stator (12) includes or utilizes a movable carriage (22) having testing equipment which is sized to fit between the rotor (14) and stator (12) and is positionable over a selected stator (12) slot so as to be able to axially traverse the selected stator (12) slot, at least one sensor for sensing whether the movable carriage (22) is centered in an optimum position with respect to the selected stator (12) slot; and structure for centering the movable carriage (22) with respect to the optimum position if the sensor indicates the movable carriage (22) is not so centered, whereby accuracy of any testing by the testing equipment is optimized.
摘要翻译： 用于测试具有转子（14）和定子（12）的类型的发电机的系统和方法包括或利用具有测试设备的可移动滑架（22），该测试设备的尺寸适于安装在转子（14）和定子 12），并且可定位在选定的定子（12）槽上，以便能够轴向地横穿所选择的定子（12）狭槽，至少一个传感器用于感测可移动托架（22）是否位于相对于 到所选择的定子（12）槽; 如果传感器指示可移动托架（22）不是居中的，则可移动托架（22）相对于最佳位置居中的结构，从而优化了测试设备的任何测试的精度。
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2.发明授权System and method for impact testing wedge tightness in an electrical generator 失效发电机冲击试验楔形紧密度的系统和方法
公开(公告)号：US5493894A
公开(公告)日：1996-02-27
申请号：US418358
申请日：1995-04-07
申请人： George F. Dailey , Mark W. Fischer , Harry L. Sill
发明人： George F. Dailey , Mark W. Fischer , Harry L. Sill
CPC分类号： G01N3/317 , G01M7/08 , G01N2033/0078
摘要： An improved apparatus for impact testing stator wedge tightness in an electrical generator includes a base assembly that has a vibration sensor mounted thereon and is adapted to temporarily attached to a stator core lamination in an electrical generator, an impact assembly for creating an impact against the stator core lamination; and a mounting system for mounting the base assembly to the impact assembly. The mounting system includes an isolating system for vibrationally isolating the base assembly from the impact assembly during use, so that the vibration sensor will receive vibrations from the stator core lamination, and not said impact assembly. The method of use is also disclosed.
摘要翻译： 用于冲击测试的改进的用于发电机中的定子楔形紧密度的装置包括基座组件，其具有安装在其上的振动传感器，并且适于临时连接到发电机中的定子铁心层压件，用于产生对定子的冲击的冲击组件 芯层压; 以及用于将基座组件安装到冲击组件的安装系统。 安装系统包括用于在使用期间使基座组件与冲击组件振动隔离的隔离系统，使得振动传感器将接收来自定子芯层压件而不是所述冲击组件的振动。 也公开了使用方法。
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公开(公告)号：US5365166A
公开(公告)日：1994-11-15
申请号：US15963
申请日：1993-02-08
摘要： A system and method for testing an electrical generator of the type having a rotor (14) and a stator (12) includes or utilizes a movable carriage (22) having testing equipment which is sized to fit between the rotor (14) and stator (12) and is positionable over a selected stator (12) slot so as to be able to axially traverse the selected stator (12) slot, at least one sensor for sensing whether the movable carriage (22) is centered in an optimum position with respect to the selected stator (12) slot; and structure for centering the movable carriage (22) with respect to the optimum position if the sensor indicates the movable carriage (22) is not so centered, whereby accuracy of any testing by the testing equipment is optimized.
摘要翻译： 用于测试具有转子（14）和定子（12）的类型的发电机的系统和方法包括或利用具有测试设备的可移动滑架（22），该测试设备的尺寸适于安装在转子（14）和定子 12），并且可定位在选定的定子（12）槽上，以便能够轴向地横穿所选择的定子（12）狭槽，至少一个传感器用于感测可移动托架（22）是否位于相对于 到所选择的定子（12）槽; 如果传感器指示可移动托架（22）不是居中的，则可移动托架（22）相对于最佳位置居中的结构，从而优化了测试设备的任何测试的精度。
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4.发明授权Apparatus and method for inpact testing for electric generator stator wedge tightness 失效发电机定子楔形紧密度的不准确测试装置和方法
公开(公告)号：US5295388A
公开(公告)日：1994-03-22
申请号：US828099
申请日：1992-01-30
CPC分类号： G01M7/08
摘要： Method and apparatus for performing remote impact testing for generator stator wedges and ripple springs. An improved low profile carriage is utilized for correlating wedge displacement data with the force required to displace the wedge. A calibrated test stand, in which exemplary wedges are placed under a known loading via a hydraulic load cell, provides means for generating calibration curve sets. From the graphed forcedisplacement curves generated from wedges placed under a known loading, force and displacement data generated during actual stator testing can be analyzed to measure the tightness or looseness of stator wedges, coils and ripple springs. In the preferred embodiment of the low profile carriage of the present invention, a capacitive sensor is used to directly measure the displacement or vibration of stator wedges as a result of being struck by an impact hammer with a known force.
摘要翻译： 用于对发电机定子楔和波纹弹簧进行远程冲击试验的方法和装置。 使用改进的低轮廓滑架将楔形位移数据与移位楔所需的力相关联。 校准的测试台，其中示例性楔形物通过液压测力传感器放置在已知负载下，提供用于产生校准曲线组的装置。 从在已知负载下放置的楔形产生的图形强制位移曲线中，可以分析在实际定子测试期间产生的力和位移数据，以测量定子楔，线圈和波纹弹簧的紧密度或松动度。 在本发明的低剖面滑架的优选实施例中，电容式传感器用于直接测量定子楔的位移或振动，这是由于以已知的力被冲击锤击打的结果。
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5.发明授权
公开(公告)号：US4962660A
公开(公告)日：1990-10-16
申请号：US367658
申请日：1989-06-19
申请人： George F. Dailey , Mark W. Fischer
发明人： George F. Dailey , Mark W. Fischer
CPC分类号： G01R31/34 , G01N3/30 , G01N2203/0039 , G01N2203/0617 , G01N2203/0658 , G01N2203/0682
摘要： A low profile remotely controlled carriage which is inserted between the rotor and stator of an electric generator carries an impactor which can be preloaded to strike the stator wedges in all orientations around the stator with a selected high impact force which causes the stator wedge to vibrate. A detector seismically isolated from the impactor measures the deflections in the vibrating stator wedge. Preferably, the detector includes an eddy current coil positioned to measure the distance to a wedge follower which vibrates with the wedge. In one embodiment, the wedge follower is a vacuum cup secured to the wedge. In another, the eddy current coil measures the distance to a foot spring biased against the vibrating wedge. Preferably, the detector is seismically isolated by mounting it on a separate carriage disposed in an aperture in the low profile carriage.
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公开(公告)号：US4811091A
公开(公告)日：1989-03-07
申请号：US92789
申请日：1987-09-02
IPC分类号： H04N7/18
CPC分类号： H04N7/185
摘要： Apparatus for performing inspections in difficult to access locations. The device includes remotely controlled transport apparatus upon which is mounted a camera and illumination lamps. The transport apparatus is maneuvered, through the remote control system, to the location where a visual inspection is to be performed. The associated camera then transmits a picture of the area in the vicinity of the camera back to a remote television monitor where it may be viewed.
摘要翻译： 用于在难以进入的位置进行检查的装置。 该装置包括远程控制的运输装置，在该装置上安装有相机和照明灯。 运输装置通过遥控系统被操纵到要进行视觉检查的位置。 然后，相关联的摄像机将照相机附近的区域的图像发送回可以被观看的远程电视监视器。
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7.发明授权公开(公告)号：US06876222B2
公开(公告)日：2005-04-05
申请号：US10292325
申请日：2002-11-12
CPC分类号： G01R31/34
摘要： An automated tool for performing an EL CID inspection of the step iron region of a generator stator that can be employed with the rotor in place. The tool has a track that is axially cantilevered at one end and supported magnetically within a stator slot adjacent the region to be monitored. The track has a smoothly rounded contour that approximately conforms to the profile of the stator step region. A carriage carrying a pickup coil is slideably mounted on the track and is driven back and forth along the track over the area to be inspected by a remotely-operated drive system. A video camera is mounted on the track and provides a remote visual indication of the location of the carriage relative to the stator.
摘要翻译： 一种用于对发电机定子的台阶铁区执行EL CID检查的自动化工具，其可以与转子一起使用。 该工具具有在一端轴向悬臂的轨道，并且与邻近待监测区域的定子槽内的磁力支撑。 轨道具有平滑的圆形轮廓，其大致符合定子台阶区域的轮廓。 承载拾取线圈的托架可滑动地安装在轨道上，并且通过远程操作的驱动系统沿着要检查的区域的轨道来回驱动。 视频摄像机安装在轨道上，并且提供了托架相对于定子的位置的远程可视指示。
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8.发明授权
公开(公告)号：US5020234A
公开(公告)日：1991-06-04
申请号：US403419
申请日：1989-09-01
摘要： Apparatus for measuring ripple spring deflection to determine stator wedge tightness in an electric generator without removing the rotor includes a low profile carriage insertable in the gap between the rotor and stator. A probe is aligned longitudinally and laterally with holes in the stator wedges with the aid of a miniature television camera on the carriage and extended through an aligned hole to contact the ripple spring. The probe is connected through a cable to the core of a linear variable differential transformer mounted on the carriage which provides an accurate measurement of probe extension. The probe is extended and retracted by an arrangement of cables and springs providing a lost motion coupling which accommodates for seating of the probe against a ripple spring at less than full extension.
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公开(公告)号：US07871064B2
公开(公告)日：2011-01-18
申请号：US11583290
申请日：2006-10-19
CPC分类号： H02K15/0006
摘要： A repair fixture for supporting large cylindrical objects such as a generator rotor, to facilitate field maintenance operations. The fixture has two spaced Vee-blocks that are supported by and moved within vertical channels formed within peripheral stanchions. Clevises are rotatably connected at one end to both lateral sides of the Vee-block and at the other end to a hydraulic piston that is employed to raise and lower the Vee-blocks in unison to accommodate various maintenance requirements.
摘要翻译： 用于支撑诸如发电机转子的大型圆柱形物体的修理夹具，以便于现场维护操作。 夹具具有两个间隔开的V形块，由外围支柱中形成的垂直通道支撑并移动。 夹具的一端可旋转地连接到V形块的两侧，另一端可旋转地连接到用于一致地升高和降低V形块的液压活塞，以适应各种维护要求。
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公开(公告)号：US06619109B1
公开(公告)日：2003-09-16
申请号：US09669785
申请日：2000-09-25
IPC分类号： G01M1500
CPC分类号： G01M3/2853 , F01D9/06 , F01D21/003 , F05D2220/31 , F05D2230/80 , G01M3/2869
摘要： An inspection apparatus (40) for in-situ leak testing of the bell seal (30) of a steam turbine (10). The apparatus includes a pair of inflatable bladders (48,52) for defining a sealed volume having the bell seal (30) as its only leakage path. The mass flow rate of pressurized air (70) at various pressures through the bell seal (30) is compared to the known flow rates through a similarly designed bell seal having various degrees of degradation. A camera (60) rotated by motor (62) between the bladders (48,52) provides an indication of the proper positioning of the inspection apparatus (40) and facilitates a visual inspection of the bell seal (30) and retaining nut (42). The inspection apparatus (40) may be inserted into an inlet to the turbine through a disassembled flow control valve without the need for any disassembly of the turbine.
摘要翻译： 一种用于汽轮机（10）的钟形密封件（30）的现场泄漏测试的检查装置（40）。 该装置包括一对可充气气囊（48,52），用于限定具有喇叭密封件（30）作为其唯一泄漏路径的密封容积。 通过钟形密封件（30）的各种压力下的加压空气（70）的质量流量通过具有各种劣化程度的相似设计的钟形密封件与已知的流速进行比较。 由电动机（62）在气囊（48,52）之间旋转的照相机（60）提供了检查装置（40）的适当定位的指示，并且便于对钟形密封件（30）和保持螺母（42）的目视检查 ）。 检查装置（40）可以通过拆卸的流量控制阀插入到涡轮机的入口，而不需要拆卸涡轮机。
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