公开(公告)号：US20060191910A1

公开(公告)日：2006-08-31

申请号：US11390235

申请日：2006-03-28

申请人： Todd Fischer ,  John Nolan ,  Andrew Tomko ,  Dennis Roberts ,  Carter Cook ,  David Parker

发明人： Todd Fischer ,  John Nolan ,  Andrew Tomko ,  Dennis Roberts ,  Carter Cook ,  David Parker

IPC分类号： H05B6/10

CPC分类号： B23P6/007 ,  F01D5/005 ,  F01D5/225 ,  F01D5/24 ,  F01D5/3053

摘要： Bucket tip tenons requiring refurbishment are removed from the bucket tips by grinding. Groups of buckets are clamped on a rotatable table in positions adjacent an induction heating coil and a robotic welding arm, respectively. While one group is preheated, the other group of buckets is in a welding location, enabling the welding head on the robotic arm to sequentially apply weld buildup material to the bucket tips. After applying weld buildup material in multiple passes and sequentially to the bucket tips, the buckets are removed, stress-relieved and the weld buildup material machined to provide refurbished tenons. Upon removal of the buckets from the table, the table is rotated to locate the preheated buckets in welding locations and additional buckets are clamped to the table for preheating.

摘要翻译： 需要翻新的铲斗榫头通过磨削从铲斗顶部移除。 一组铲斗分别夹在与感应加热线圈和机器人焊接臂相邻的位置的可旋转工作台上。 当一组预热时，另一组铲斗处于焊接位置，使得机器臂上的焊接头能够将焊接积聚材料依次施加到铲斗顶端。 在多次通过中施加焊接成型材料并依次施加到铲斗前端之后，移除铲斗，减轻应力，并加工焊接成型材料以提供翻新的榫头。 从桌子上取下铲斗后，转动桌子将预热的铲斗定位在焊接位置，另外的铲斗被夹紧在工作台上进行预热。

公开(公告)号：US07034262B2

公开(公告)日：2006-04-25

申请号：US10806426

申请日：2004-03-23

申请人： Todd Joseph Fischer ,  John Francis Nolan ,  Andrew John Tomko ,  Dennis William Roberts ,  Carter Steven Cook ,  David Roy Parker

发明人： Todd Joseph Fischer ,  John Francis Nolan ,  Andrew John Tomko ,  Dennis William Roberts ,  Carter Steven Cook ,  David Roy Parker

IPC分类号： H05B6/10

CPC分类号： B23P6/007 ,  F01D5/005 ,  F01D5/225 ,  F01D5/24 ,  F01D5/3053

摘要： Bucket tip tenons requiring refurbishment are removed from the bucket tips by grinding. Groups of buckets are clamped on a rotatable table in positions adjacent an induction heating coil and a robotic welding arm, respectively. While one group is preheated, the other group of buckets is in a welding location, enabling the welding head on the robotic arm to sequentially apply weld buildup material to the bucket tips. After applying weld buildup material in multiple passes and sequentially to the bucket tips, the buckets are removed, stress-relieved and the weld buildup material machined to provide refurbished tenons. Upon removal of the buckets from the table, the table is rotated to locate the preheated buckets in welding locations and additional buckets are clamped to the table for preheating.

公开(公告)号：US20040191068A1

公开(公告)日：2004-09-30

申请号：US10797376

申请日：2004-03-10

发明人： Christoph Richter ,  Heinrich Stuer ,  Frank Truckenmuller

IPC分类号： F03B003/12

CPC分类号： F01D5/24 ,  F05D2300/133

摘要： The invention relates to a moving-blade row of a fluid-flow machine, the moving-blade row having individual adjacent moving blades which each have a moving-blade root and a moving-blade center region and also a moving-blade tip and a leading edge and a trailing edge, the moving blades being mechanically connected to one another in the moving-blade center region by supporting elements in such a way that undesirable vibrations of the moving blades are effectively avoided.

摘要翻译： 本发明涉及一种流体动力机械的动叶片排，该活动叶片排具有各自相邻的活动叶片，每个相邻的活动叶片具有活动叶片根部和移动叶片中心区域，还具有活动叶片尖端和 前缘和后缘，活动叶片通过支撑元件在动叶片中心区域中彼此机械连接，从而有效地避免了动叶片的不期望的振动。

公开(公告)号：US20040126235A1

公开(公告)日：2004-07-01

申请号：US10334431

申请日：2002-12-30

发明人： Kevin Joseph Barb ,  Amir Mujezinovic ,  Nicholas Francis Martin ,  Douglas Carl Hofer

IPC分类号： F01D005/14

CPC分类号： F01D5/16 ,  F01D5/141 ,  F01D5/24 ,  F05D2220/31 ,  F05D2230/10 ,  Y02T50/671 ,  Y02T50/673 ,  Y10S416/50

摘要： A method of modifying a rotor blade, and a rotor blade are provided. The rotor blade is for a steam turbine and it is modified to facilitate altering a natural vibratory frequency of the rotor blade, the rotor blade includes a leading edge, a trailing edge, a first sidewall, and a second sidewall, wherein the first and second sidewalls are connected axially at the leading and trailing edges, and the sidewalls extending radially between a rotor blade root to a rotor blade tip. The method includes determining a vibratory resonance condition of the rotor blade and forming a blade extension between the rotor blade root and the rotor blade tip that alters the determined resonance condition.

摘要翻译： 提供了一种修改转子叶片和转子叶片的方法。 转子叶片用于蒸汽轮机，并且其被修改以便于改变转子叶片的天然振动频率，转子叶片包括前缘，后缘，第一侧壁和第二侧壁，其中第一和第二侧 侧壁在前缘和后缘处轴向连接，并且侧壁在转子叶片根部与转子叶片尖端之间径向延伸。 该方法包括确定转子叶片的振动共振条件并在转子叶片根部和转子叶片尖端之间形成改变所确定的共振条件的叶片延伸部分。

公开(公告)号：US20020054817A1

公开(公告)日：2002-05-09

申请号：US10025557

申请日：2001-12-26

申请人： Kabushiki Kaisha Toshiba

发明人： Tadashi Tanuma ,  Taro Sakamoto

IPC分类号： F01D005/14

CPC分类号： F01D5/24 ,  F01D5/141 ,  Y10S416/02 ,  Y10S416/05

摘要： A steam turbine that passes more turbine driving steam by off-setting the turbine moving blade throat.pitch ratio before operation and, when a blade untwist is generated during operation, causing more turbine driving steam to flow by maintaining an appropriate value, and, at the same time causing the turbine moving blade throat.pitch ratio to swell by giving the blade untwisting angle to the blade cross-sections in regions where the aerodynamic loss is small. The steam turbine is one in which the throat.pitch ratio (S/T) distribution of a turbine moving blade is offset by forming a curve providing at least one minimal value and maximal value by giving blade twist angle to the blade cross-sections in the blade height direction from blade root to blade tip and, at the same time, the distribution of throat.pitch ratio (S/T) taking into consideration blade untwist generated during operation.

公开(公告)号：US5645402A

公开(公告)日：1997-07-08

申请号：US631313

申请日：1996-04-10

申请人： Charles C. Cornelius ,  Gregory P. Pytanowski ,  Jonathan S. Vendituoli

发明人： Charles C. Cornelius ,  Gregory P. Pytanowski ,  Jonathan S. Vendituoli

IPC分类号： F01D5/22

CPC分类号： F01D5/24 ,  F01D5/225

摘要： The present turbine wheel assembly increases component life and turbine engine longevity. The combination of the strap and the opening combined with the preestablished area of the outer surface of the opening and the preestablished area of the outer circumferential surface of the strap and the friction between the strap and the opening increases the life and longevity of the turbine wheel assembly. Furthermore, the mass "M" or combined mass "CM" of the strap or straps and the centrifugal force assist in controlling vibrations and damping characteristics.

摘要翻译： 本发明的涡轮机轮组件增加了部件寿命和涡轮发动机寿命。 绑带和开口的组合与开口的外表面的预先建造的区域和带的外周表面的预先设置的区域以及带和开口之间的摩擦相结合增加了涡轮机叶轮的使用寿命和使用寿命 部件。 此外，带或带的质量“M”或组合质量“CM”和离心力有助于控制振动和阻尼特性。

公开(公告)号：US5393200A

公开(公告)日：1995-02-28

申请号：US222786

申请日：1994-04-04

申请人： Cuong V. Dinh ,  Stephen G. Ruggles ,  James H. Vogan

发明人： Cuong V. Dinh ,  Stephen G. Ruggles ,  James H. Vogan

IPC分类号： F01D5/14 ,  F01D5/22 ,  F01D5/24 ,  F01D5/12

CPC分类号： F01D5/225 ,  F01D5/141 ,  F01D5/24 ,  Y10S416/02

摘要： A last-stage steam turbine bucket having a profile according to the charts set forth in the specification.

摘要翻译： 具有根据说明书中阐述的图表的轮廓的最后阶段蒸汽涡轮机桶。

公开(公告)号：US4699569A

公开(公告)日：1987-10-13

申请号：US877123

申请日：1986-06-23

申请人： Kurt Gloor

发明人： Kurt Gloor

IPC分类号： F01D5/22 ,  F01D5/24

CPC分类号： F01D5/225 ,  F01D5/24 ,  F05D2260/96

摘要： In the rotor blade ring of an axial flow turbomachine, the rotor blades are each provided at their radially outer ends with a shroud plate and are fastened at their radially inner ends, by means of a root, in a corresponding groove of the machine rotor. The shroud plates are connected together in the peripheral direction by means of wires rolled into turned recesses. Grooves (10), with a clear width (w.sub.1) which is dimensioned larger than the width (w.sub.2) of the shroud plate turned recess (8) provided for the wire (7) to be rolled in, are machined in the end surface (6) of the shroud plate (2). A spacer means (11), surrounding the wire at least in the region of the rolling positions and removable after rolling, is laid in the grooves during the rolling procedure. This material is preferably a hard paper which is burnt to ashes during machine operation.

摘要翻译： 在轴流式涡轮机的转子叶片环中，转子叶片各自在其径向外端处设置有护罩板，并且通过根部在其径向内端处紧固在机器转子的相应凹槽中。 护罩板通过卷成转动凹槽的金属丝在圆周方向上连接在一起。 具有宽度（w1）的凹槽（10）的尺寸被设计成大于被设置用于被卷绕的线材（7）的护罩板转动凹部（8）的宽度（w2），在端表面 6）。 至少在轧制位置的区域中包围线材的间隔装置（11）在轧制过程之后被放置在槽中。 这种材料优选是在机器操作期间被烧成灰的硬纸。

公开(公告)号：US4684326A

公开(公告)日：1987-08-04

申请号：US602066

申请日：1984-04-19

申请人： Mark E. Wassell ,  John G. Mosimann

发明人： Mark E. Wassell ,  John G. Mosimann

IPC分类号： F01D5/22 ,  F01D5/24 ,  F01D5/30 ,  F01D5/32

CPC分类号： F01D5/326 ,  F01D5/22 ,  F01D5/225 ,  F01D5/24

摘要： The Assembly has a submerged root, turbine-wheel-blading configuration, and utilizes circumferentially oriented, buried, friction damping wires, and continuous, overlapping, tip shrouds to minimize vibratory response. The wires, in the presence of blade vibration, simultaneously rub on both the blades and surfaces of a recess in the wheel in which the blade roots are fixed. The continuous tip shrouding provides additional damping through shroud-to-shroud interface rubbing. The assembly has a stack of identical blades, obviating any need for relatively weak locking blades or pieces. The method defines the steps of forming a peripheral recess in a wheel, in which to secure root ends of blades, and setting the damping wires (or wire) therein prior to installing the blade root ends, and uniformly spacing-apart the blades after securing the same to the wheel.

摘要翻译： 该组件具有淹没的根部，涡轮机叶轮构造，并且利用周向定向的，埋入的摩擦阻尼线以及连续的，重叠的尖端护罩以使振动响应最小化。 在刀片振动的情况下，电线同时摩擦在叶片根部固定的车轮上的凹槽的两个叶片和表面上。 连续的尖端护罩通过护罩对护罩接口摩擦提供额外的阻尼。 组件具有相同刀片的堆叠，消除了对相对较弱的锁定刀片或件的任何需要。 该方法限定了在车轮中形成周边凹槽的步骤，其中固定刀片的根部端部，并且在安装刀片根部末端之前将阻尼丝（或线）设置在其中，并且在固定之后均匀地间隔开刀片 相同的轮子。

公开(公告)号：US4268223A

公开(公告)日：1981-05-19

申请号：US942143

申请日：1978-09-14

申请人： Emil Anner ,  Harry Brunner ,  Hans J. Meister

发明人： Emil Anner ,  Harry Brunner ,  Hans J. Meister

IPC分类号： F01D5/24

CPC分类号： F01D5/24 ,  Y10S416/50

摘要： A method and apparatus for suppressing vibration in turbine blading and the like is disclosed. A damping tube is inserted through an aperture in each of a plurality of turbine blades. By expanding the damping tube after it is inserted in the blades the tube is firmly secured to each blade. A wire may be inserted through the damping tube and is secured by crimping the expanded tube portions. The tube may be divided into circumferential segments with each tube being widened for example by means of a center punch at an end portion which extends through the final blade of each segment.

摘要翻译： 公开了一种用于抑制涡轮叶片等中的振动的方法和装置。 阻尼管通过多个涡轮机叶片中的每一个中的孔插入。 通过在将阻尼管插入叶片之后扩张阻尼管，该管牢固地固定到每个叶片上。 线可以插入通过阻尼管，并且通过压接膨胀的管部分来固定。 管可以被分成圆周段，每个管例如通过在延伸穿过每个段的最终叶片的端部处的中心冲头加宽。