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1. 发明专利

JP2006283595A Steam turbine seal device 有权
标题翻译：蒸汽涡轮密封装置
公开(公告)号：JP2006283595A
公开(公告)日：2006-10-19
申请号：JP2005101448
申请日：2005-03-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NIIMURA TOSHIYASU , NARITA KENJIRO , NAMURA KIYOSHI , TORITANI HAJIME
IPC分类号： F01D11/02 , F01D5/02
摘要： PROBLEM TO BE SOLVED: To prevent generation of rubbing vibration and deformation of a seal fin by avoiding contact of a seal fin and a rotor or a seal fin and a seal fin, and improve sealing performance by reducing steam leak loss due to difference of thermal expansion of a stationary part and a rotary part in a rotor shaft direction in a steam turbine seal device provided near a turbine rotor for prevention of steam leak. SOLUTION: A plurality of the seal fins 7 fixed on a seal stationary body 6 on a nozzle diaphragm inner ring side , and a plurality of seal fins p fixed on the rotor 1are arranged with a fixed interval in a radial direction. Projection and depression parts 12 extending in a radial direction are formed on a surface of the seal fins 9 on the rotor 1 side discretely in a circumference direction. Fluid in an outer circumference part of a rotor 1 is induced as flow 17 by a slope 16 of depression parts 15a and projection parts 15b to form radial direction outward flow component in relation to a rotary shaft. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过避免密封翅片和转子，密封翅片和密封翅片的接触来防止密封翅片产生摩擦振动和变形，并且通过减少由于在设置在用于防止蒸气泄漏的涡轮转子附近的蒸汽涡轮机密封装置中，转子轴方向上的固定部和旋转部的热膨胀差。解决方案：固定在喷嘴隔膜内圈侧上的密封固定体6上的多个密封翅片7和固定在转子1上的多个密封翅片p沿径向以固定的间隔布置。沿圆周方向离散地形成在转子1侧的密封翅片9的表面上沿径向延伸的突起和凹陷部12。转子1的外周部分的流体通过凹部15a和突出部15b的斜面16被引导为流17，以形成相对于旋转轴的径向向外流动分量。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2002045903A EQUIPMENT AND METHOD FOR REVERSING ROLLING 失效
公开(公告)号：JP2002045903A
公开(公告)日：2002-02-12
申请号：JP2000236451
申请日：2000-08-04
申请人： HITACHI LTD
发明人： NIIMURA TOSHIYASU , NIHEI MITSUO , YASUDA KENICHI , HORIGUCHI AKIRA
IPC分类号： B21B1/32 , B21B45/02
摘要： PROBLEM TO BE SOLVED: To improve the quality of the surface of a rolled stock and productivity by sufficiently removing a coolant on the inlet and outlet sides in the rolling direction without bringing about the lowering of energy efficiency and scale-up of the whole rolling equipment in reversing rolling equipment and a reversing rolling method. SOLUTION: In the reversing rolling equipment 100 for performing rolling by passing a rolled stock 1 before and behind a rolling mill 4 by moving the stock back and forth plural times, this equipment has hydrostatic bearing supporting roller type coolant removing devices 9a, 9b, 10a, 10b which are situated in two places before and behind the work rolls 2a, 2b and rubber roll type coolant removing devices 5a, 5b, 6a, 6b which are situated in two places before and behind the work rolls 2a, 2b. The devices on the outlet side of the rolling mill 4 among the coolant removing devices 9a, 9b, 10a, 10b are made to perform the coolant removing operation and the devices situated on the inlet side of the rolling mill 4 are made not to perform the coolant removing operation.

3. 发明专利

JP2005021909A Metal plate rolling mill and rolling method for metal plate rolling mill 审中-公开
标题翻译：金属板轧机的轧制和轧制方法
公开(公告)号：JP2005021909A
公开(公告)日：2005-01-27
申请号：JP2003187255
申请日：2003-06-30
申请人： Hitachi Ltd , Mitsubishi-Hitachi Metals Machinery Inc , 三菱日立製鉄機械株式会社 , 株式会社日立製作所
发明人： NIIMURA TOSHIYASU , NARITA KENJIRO , HIRAMA YUKIO , KOBAYASHI YUJIRO
IPC分类号： B21B13/14 , B21B37/00 , B21B37/28 , B21B37/38 , B21B37/42
摘要： PROBLEM TO BE SOLVED: To provide a metal plate rolling mill which can improve the quality of surface characteristics while realizing reducing and uniforming an edge drop amount, and a rolling method for the metal plate rolling mill. SOLUTION: The metal plate rolling mills 21A, 21B are constituted so as to have the identical diameter at least in a plate width range of a metal plate 1. The metal plate rolling mills 21A, 21B have a pair of upper and lower work rolls 2A, 2B in an axially immovable type, which is fixedly arranged in the roll shaft direction at least during rolling, a pair of upper and lower intermediate rolls 3A, 3B in an axially movable type, which is movably arranged in the roll shaft direction during rolling, an upper reinforcing roll 4A provided with a tapered part, whose roll diameter is reduced toward the roll end on one side, and a lower reinforcing roll 4B provided with a tapered part, whose roll diameter is reduced toward the roll end on the other side. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种金属板轧机，其可以在实现边缘下落量的降低和均匀化的同时提高表面特性的质量，以及金属板轧机的轧制方法。解决方案：金属板轧机21A，21B至少在金属板1的板宽度范围内具有相同的直径。金属板轧机21A，21B具有一对上下工作辊2A，2B至少在轧制过程中固定地设置在辊轴方向上的轴向不可移动型的一对上下中间辊3A，3B，其可轴向移动地安装在辊轴滚动时的方向，具有锥形部分的上部加强辊4A，其辊直径朝向一侧的辊端减小;以及下部加强辊4B，其设置有锥形部，其辊直径朝向辊端减小另一边。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2006183486A Steam turbine 有权
标题翻译：汽轮机
公开(公告)号：JP2006183486A
公开(公告)日：2006-07-13
申请号：JP2004375265
申请日：2004-12-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NIIMURA TOSHIYASU , NAMURA KIYOSHI , MURATA KENICHI
IPC分类号： F01D9/04 , F01D9/02 , F01D25/24
摘要： PROBLEM TO BE SOLVED: To provide a steam turbine having a steam turbine structure capable of reducing steam leakage loss caused by a space between a nozzle diaphragm and a rotor or a space between a spacer and a moving blade.
SOLUTION: The steam turbine is constituted by a rotor 1 having the moving blade 2; split type nozzle diaphragms 8 and 8' split to the peripheral direction so as to retain a stationary blade 5; ring shaped inner casings 9, 9', 9'' and 9''' split along a rotor axial direction for each of steps, fixed at the time of assembly by a stack bolt 10 and retaining the nozzle diaphragm; and an outer casing 7 housing and retaining the inner casings. The inner casing is in the shape of the ring, and a flange part is not formed, and thereby thermal deformation along the peripheral direction is uniformed, and as a result, the space between the nozzle diaphragm and the rotor can be adjusted to be narrower.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种蒸汽轮机，其具有能够减少由喷嘴隔膜和转子之间的空间或间隔件和动叶片之间的空间引起的蒸汽泄漏损失的蒸汽轮机结构。蒸汽轮机由具有活动叶片2的转子1构成; 分割式喷嘴隔膜8和8'分隔成圆周方向以保持固定叶片5; 环形内壳9,9'，9“和9”'沿着转子轴向方向分开，用于每个台阶，通过堆叠螺栓10组装时固定并保持喷嘴隔膜; 以及容纳和保持内壳的外壳7。内壳为环状，不形成凸缘部，因此沿周向的热变形均匀化，结果能够使喷嘴隔膜与转子之间的间隔变窄。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2001001017A METHOD AND DEVICE FOR COOLING ROLLING ROLL 失效
公开(公告)号：JP2001001017A
公开(公告)日：2001-01-09
申请号：JP17776799
申请日：1999-06-24
申请人： HITACHI LTD
发明人： NIIMURA TOSHIYASU , NARITA KENJIRO
IPC分类号： B21B27/10
摘要： PROBLEM TO BE SOLVED: To uniforming thermal crown in the contact region between a roll and a material to be rolled by jetting cooling water in the state where cooling with a cooling device is executed or not on the basis of the data of surface temperature of the roll to be measured from a 1st cooling device and also jetting the cooling water in the state where heating with a heating device is executed or not is jetted from the 2nd cooling device. SOLUTION: After cooling the cooling water with the cooling device 8 for cooling the cooling water, as need, the cooling water is jetted from the 1st cooling device to the rolling roll. The cooling water whose temperature is raised by once jetting the water to the roll is recoveried and filtered with a cooling- water recovering/filtering device 6, the cooling water is fed to the heating device 9, as need with a cooling water circulating pump 7, after heating the cooling water with the heating device 9 on basis of control signal from a controller 4 for jetting quantity, jetting position, jetting pressure of the cooling water and jetting temperature of the cooling water, the cooling water is fed to the 2nd cooling device 5 and jetted to the rolling roll.

6. 发明专利

JP2004218711A Power transmission device and power transmission method 审中-公开
公开(公告)号：JP2004218711A
公开(公告)日：2004-08-05
申请号：JP2003005826
申请日：2003-01-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NIIMURA TOSHIYASU , NARITA KENJIRO
IPC分类号： F16H13/04 , F16H57/04 , F16H57/02
CPC分类号： F16H57/0434 , F16H57/0487
摘要： PROBLEM TO BE SOLVED: To provide a power transmission device and a power transmission method for improving a torque transmission rate without increasing a pressing force by securing a high coefficient of traction and manufacturing the device of a compact and inexpensive material. SOLUTION: This power transmission device for transmitting the torque of a driving roll 1a to a driven roll 1b is provided with a roll pressing device 2 for pressing the driving roll 1a against the driven roll 1b, a lubricant supply device 4 for supplying traction oil 3 to the surface of a barrel of the driven roll 1b, roll speed meters 6a, 6b for measuring peripheral speeds between the rolls 1a and 1b, and a control means 5 for determining a lubrication state between the rolls 1a and 1b based on the relation of a slide rate between the rolls 1a and 1b calculated from the measurement of the roll speed meters 6a, 6b and the computed coefficient of traction to control a lubricant supply amount by the lubricant supply device 4 so that the lubrication state becomes a boundary lubrication state. COPYRIGHT: (C)2004,JPO&NCIPI

7. 发明专利

JP2002066605A HOT ROLLING METHOD AND APPARATUS 失效
公开(公告)号：JP2002066605A
公开(公告)日：2002-03-05
申请号：JP2000261151
申请日：2000-08-30
申请人： HITACHI LTD
发明人： NIIMURA TOSHIYASU , NARITA KENJIRO , HIRANO SATOSHI
IPC分类号： B21B1/32 , B21B39/00 , B21B45/00 , B21B45/02 , C21D8/02
摘要： PROBLEM TO BE SOLVED: To provide a rolling apparatus and method adaptable to various kinds of steel capable of micronizing a metal structure with an inexpensive machine structure using a reversible rolling mill. SOLUTION: In the hot rolling apparatus comprising the reversible hot rolling mill 100 that repeatedly rolls a rolling material changing a pass direction and heat insulators 4, 5 that uncoil and wind the rolling material from the rolling mill and keep a temperature of the rolling material after rolling, there are mounted, at both sides of an inlet and an outlet of the rolling mill, a cooling means capable of cooling down the rolling material to the temperature of not more than an Ar1 transformation point, and a heating means capable of heating the rolling material to the temperature of not less than an Ac1 transformation point or not less than an Ac3 transformation point. Then, the uncoiled rolling material is cooled down to the temperature of not more than the Ar1 transformation point and, after being rolled at this temperature, the rolling material is reheated to the temperature of not less than the Ac3 transformation point, and a rolling pass for winding the rolling material is repeatedly conducted changing the pass direction.

8. 发明专利

JP2000176517A ROLLING MILL AND ROLLING METHOD 失效
公开(公告)号：JP2000176517A
公开(公告)日：2000-06-27
申请号：JP36213298
申请日：1998-12-21
申请人： HITACHI LTD
发明人： NARITA KENJIRO , NIHEI MITSUO , SAITO TAKEHIKO , NIIMURA TOSHIYASU , KAGA SHINICHI , KAMOSHITA TAKASHI
IPC分类号： B21B13/14 , B21B27/10 , B21B28/04 , B24B5/37 , B24B49/00
摘要： PROBLEM TO BE SOLVED: To secure homogenous thickness distribution and to obtain a metal plate excellent in quality by providing a grinding instructing device for sending the instruction of grinding to a grinding device at the point of time when at least one of the measured value and estimated value of the profile of a work roll reaches an arbitrary value. SOLUTION: A rolling stand 5 is provided with a pair of the work rolls 2 and a pair of back-up rolls 3, the work rolls 2 are composed so as to be respectively movable in the axial direction and grinding devices 6 with which the surfaces of the work rolls 2 can be ground are provided. The grinding device 6 is movable in the axial direction on a base 7 for moving and, by moving in the axial direction and bringing into contact with the surface of the work roll 2, in the non-contact region of the work roll 2 on the outside of the width on the barrel of the work roll 2, to region where is brought into contact with the metal plate at least in the rolling on and after that, or the region on the outside of that and furthermore the whole region, can grind. The work rolls 2 are moved oppositely each other in the axial direction. In this way, a gentle worn profile similar to a thermal expansion profile on which end-part peak wear is not generated is obtained.

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