专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明专利

JPS59134304A Monitoring and operation control device for coupling 失效
标题翻译：用于联接的监控和操作控制装置
公开(公告)号：JPS59134304A
公开(公告)日：1984-08-02
申请号：JP731483
申请日：1983-01-21
申请人： Hitachi Ltd
发明人： IKEUCHI KAZUO , KUNO KATSUKUNI
IPC分类号： F01D25/00 , F01D5/06 , G01M13/02
CPC分类号： G01M13/022
摘要： PURPOSE:To prevent a coupling from breakdown, by calculating the extent of stress to be imposed on the coupling on the basis of a detection signal upon installation of an operation state detector in the diaphragm coupling in a power transmission system, while installing a trouble monitor which emits an alarm or the like, in the device. CONSTITUTION:Two shafts 16 and 22 for a rotary machine of a turbine or the like are coupled together through a diaphragm coupling 6 comprising a diaphragm 18. The coupling 6 is provided with each of detectors 25-27, 31, 28 detecting those of revolution, shaft torque, frequency, axial rectangular displacement and axial displacement and a detection device consisting of a sensor 44 engaging a coupling boss 17 and each of displacement indicators 29a, 29b, 24 or the like. The detection signals are converted into equivalent stress with transducers 32-36, while mean stress and variation stress are found after these converted values are composed with an operation device 38, transmitted them to an operation control device 42 via a comparative device 41, and herefrom each of command signals for those of warning, operation continuation, operation stoppage and so on is fed to a power transmission system.
摘要翻译：目的：为了防止耦合故障，通过在动力传动系统中的隔膜联轴器中安装操作状态检测器时，根据检测信号计算施加在联轴器上的应力程度，同时安装故障监控其在设备中发出警报等。构成：用于涡轮机等的旋转机器的两个轴16和22通过包括隔膜18的隔膜联接器6联接在一起。联接器6设置有检测旋转机构的每个检测器25-27,31,28 ，轴转矩，频率，轴向矩形位移和轴向位移以及由接合凸台17和位移指示器29a，29b，24等各自的传感器44组成的检测装置。检测信号用换能器32-36转换为等效应力，而在这些转换值由操作装置38组成之后发现平均应力和变化应力，并通过比较装置41将其传送到操作控制装置42，每个用于警告，操作继续，操作停止等的指令信号被馈送到电力传输系统。

92. 发明专利

JPS5896102A METHOD AND DEVICE FOR WARMING UP STEAM TURBINE ROTOR 失效
公开(公告)号：JPS5896102A
公开(公告)日：1983-06-08
申请号：JP19286281
申请日：1981-12-02
申请人： HITACHI LTD
发明人： ISA HITOSHI , KUNO KATSUKUNI , KASHIWARA KATSUTO , IKEUCHI KAZUO
IPC分类号： F01D5/08 , F01K23/10
摘要： PURPOSE:To disuse a heating device for warming up in a combined generation plant of a gas and a steam turbine by introducing the heated air from a gas turbine compressor into a center hole of a steam turbine rotor. CONSTITUTION:Steam is generated in an exhaust gas boiler 6 into which the exhaust gas in a gas turbine 3 is introduced, and conducted to a steam turbine 8 via a main steam line 7. In this combined plant, heated air is bled from a gas turbine compressor 1 and conducted to a rotor center hole of the steam turbine 8 via a steam turbine introduction line 25 for warming up. A warming-up air bleed line 23 is equipped with a flow control valve 24, which is controlled in its opening by a warming-up air controller 34. This construction permits to disuse a special heating device for warming up.

93. 发明专利

JPS5817330B2 失效
公开(公告)号：JPS5817330B2
公开(公告)日：1983-04-06
申请号：JP8307278
申请日：1978-07-10
申请人： HITACHI LTD
发明人： SHIGETOMI FUMITSUGU , KUNO KATSUKUNI
IPC分类号： F01D5/08 , F01D25/12 , F01K13/00

94. 发明专利

JPS585405A DEVICE FOR COUPLING MOVING VANES OF TURBINE 失效
公开(公告)号：JPS585405A
公开(公告)日：1983-01-12
申请号：JP10121181
申请日：1981-07-01
申请人： HITACHI LTD
发明人： NAMURA KIYOSHI , KUNO KATSUKUNI , IKEUCHI KAZUO , SHIBAOKA HAJIME , UENISHI AKIRA , OOYABU KATSUMI
IPC分类号： F01D5/22
摘要： PURPOSE:To damp the vibration of moving vanes, by fitting the two mutually perpendicularly intersecting protrusions of a pair of coupling plates in the overhangs of the adjacent moving vanes to provide a prescribed gap between them and couple the front and rear of their tips to each other to restrict the untwisting of the vanes. CONSTITUTION:During rotation, untwisting moment acts due to centrifugal force so that the gap G between the overhangs 8a, 9b of moving vane 1, 2 increases to a value G'. The value G' is determined from the gap F between protrusions 26, 28 at standstill. During the rotation, the contact sides 30, 31 of the protrusions 26, 28 come into contact with each other to restrict the untwisted quantity of the moving vanes within a desired range. The centrifugal force of a coupling member 14 is borne by the contact of a pin 16 with the inside of the through hole 12a of the moving vane 1 and the contact of the top of the coupling member with the bottom of the overhang 9b of the other moving vane 2 so that the overhang bears some of the centrifugal force. When the moving vanes are vibrated in the circumferential direction, relative small slip motion is caused between the contact sides of the protrusions 26, 28 so that the friction has a damping effect on the vibration.

95. 发明专利

JPS57103928A JOURNAL SLEEVE 失效
公开(公告)号：JPS57103928A
公开(公告)日：1982-06-28
申请号：JP18227380
申请日：1980-12-22
申请人： HITACHI LTD
发明人： IMAI SHINICHI , KUNO KATSUKUNI , TSUKAHARA YOSHIHIRO , ISE MASAYOSHI
IPC分类号： F01D5/02 , F01D25/16 , F02C7/06 , F16C33/04 , F16C33/14
摘要： PURPOSE:To easily and excellently attach a journal sleeve to a Cr-steel turbine rotor journal united in one body with a coupling by providing a step difference in both the rotor journal and the journal sleeve. CONSTITUTION:A cylindrical journal sleeve 10 to be attached to the periphery of the journal part 2 of a 10-14% Cr-steel steam turbine rotor 1 made in one body with a coupling 5 consists of circumferentially halved sleeves 10a and 10b. Also, a small step difference is provided in the axial center of the turbine shaft in the peripheral side of the journal pant 2 so that the peripheral side near the coupling 5 is made smaller in outside diameter than that in the other part. Also, a step difference 10c is provided even in the inner surface of the sleeve 10 so that it can fit with the periphery of the journal part 2. The sleeves 10a and 10b are combined in one body on the rotor 1b, and they are pressed in to the left side and then fixed by a shrinkage fit.

96. 发明专利

JPS5793603A ROTOR FOR STEAM TURBINE AND METHOD OF MANUFACTURING SAID ROTOR 失效
公开(公告)号：JPS5793603A
公开(公告)日：1982-06-10
申请号：JP17059780
申请日：1980-12-02
申请人： HITACHI LTD
发明人： YOSHIOKA TAKATOSHI , KIRIHARA SEISHIN , SHIGA MASAO , KUNO KATSUKUNI , TSUCHIYA KEIICHI , TAN TOSHIMI , KOBAYASHI MASAHIRO , KOBAYASHI KAZU , UEDA KAZUHIKO
IPC分类号： F01D5/02 , F01D5/06 , F02C7/06
摘要： PURPOSE:To improve the bearing properties of the journal of a rotor made of high-chromium-content steel, by fitting the journal with a cylindrical sleeve made by welding a plurality of segments made of metal of high bearing properties. CONSTITUTION:A plurality of sleeve segments 1 made of a metal of higher bearing property than a rotor made of high-chromium-content steel consisting essentially of martensite are welded on each other to manufacture a cylindrical sleeve 4 of smaller inside diameter than the journal 3 of the rotor. The sleeve 4 is thereafter fitted to the journal 3 as the sleeve is maintained at a prescribed temperature. This results in heightening the reliability of the rotor.

97. 发明专利

JPS572405A ROTARY BLADE CONNECTOR OF AXIAL-FLOW ROTARY MACHINE 失效
公开(公告)号：JPS572405A
公开(公告)日：1982-01-07
申请号：JP7581980
申请日：1980-06-05
申请人： HITACHI LTD
发明人： NAMURA KIYOSHI , KUNO KATSUKUNI , UENISHI AKIRA , IKEUCHI KAZUO , NISHIMURA MAKOTO , SHIBAOKA HAJIME , ISHIDA AKIRA , OOYABU KATSUMI
IPC分类号： F01D5/22 , F01D5/26 , F04D29/38
摘要： PURPOSE:To improve vibration damping effect and maintain good connecting conditions in turbine blade connecting area by providing projections formed on both back and front sides of a blade face with connecting pieces brought in close contact to each other due to an untwist of rotary blades during their rotation. CONSTITUTION:Adjacent blades 1a, 1b are provided with projections 3a, 3b extending from suction sides of the blades as well as projections 4a, 4b extending from pressure sides. A hole 5 made at the top of each projection extends in the longitudinal direction of the projection and one connecting piece 12 is inserted in each hole 5. The connecting piece 12 is shaped so as not to rotate in the hole 5 and its vizor 17 is provided with a tapered face 18. Although a couple of forces 21, which produces untwist of blades by a centrifugal force works on blades during their rotation, vibrations are damped by frictional forces between tapered faces 18 between vizor 17 and projection end faces 11, and between connecting piece jaw 15 and hole jaw 8.

98. 发明专利

JPS572404A TURBINE ROTARY BLADES CONNECTOR 失效
公开(公告)号：JPS572404A
公开(公告)日：1982-01-07
申请号：JP7436780
申请日：1980-06-04
申请人： HITACHI LTD
发明人： KUNO KATSUKUNI , IKEUCHI KAZUO , NISHIMURA MAKOTO , SHIBAOKA HAJIME , NAMURA KIYOSHI , ISHIDA AKIRA , OOYABU KATSUMI
IPC分类号： F01D5/22
摘要： PURPOSE:To restrain untwist and damp vibration of rotary blades by bringing upward a pair of connecting members engaged with each other, into contact with vizors in fore and back edges of adjacent rotary blades during an operation, so that said rotary blades may be engaged with each other. CONSTITUTION:Connecting faces 18, 19, which are faces of end parts 12a, 13a of connecting pieces 12, 13, come in contact with each other during an operation and forces act to each other for restraining the amount of untwist of rotary blades within a desirable limit. In case rotary blades 1, 2 vibrate in X direction, that is, the circumferential direction, a very small sliding motion is started between connecting faces 18 and 19 of connecting pieces 12 and 13, and principally the friction between said faces 18 and 19 exhibits a significant effect on damping the vibration. While in case the rotary blades vibrate in Y direction, that is, the axial direction, principally the frictional force on faces of the connecting pieces 12, 13 touching the lower faces of vizors 8a, 9b of rotary blades 1, 2 which is a pressure receiving surface of centrifugal force of connecting pieces 12, 13, are quite effective on damping vibrations.

99. 发明专利

JPS56166327A MANUFACTURE OF ROTOR SHAFT 失效
公开(公告)号：JPS56166327A
公开(公告)日：1981-12-21
申请号：JP7016680
申请日：1980-05-28
申请人： HITACHI LTD
发明人： KURIYAMA MITSUO , SHIGA MASAO , KIRIHARA SEISHIN , HATAYA FUMIO , SASAKI RIYOUICHI , HIRAGA MAKOTO , TAN TOSHIMI , MIZOI TAKAO , KUNO KATSUKUNI , NINOMIYA SATOSHI
IPC分类号： B21K3/00 , C21D9/28
摘要： PURPOSE:To remarkably reduce the bending of a rotor shaft due to aging by rotating the shaft during keeping with heating and rapid cooling in a process of hardening the shaft. CONSTITUTION:In a process of hardening rotor shaft, the shaft is rotated continuously or intermittently during keeping with heating for hardening to make the heating temp. on the same circumference uniform, thereby eliminating the difference in the creep characteristics at least on the same circumference. During rapid cooling, the shaft is rotated similarly. The cooling is accomplished by forced air cooling, spray cooling, spray quenching or oil quenching. The preferred number of rotations is about 0.5-5rpm. The rotor shaft is rotated similarly during keeping with heating in a tempering process after the hardening.

100. 发明专利

JPS5660804A PREVENTIVE METHOD FOR ROTOR BENDING CAUSED DUE TO HEAT 失效
公开(公告)号：JPS5660804A
公开(公告)日：1981-05-26
申请号：JP13516179
申请日：1979-10-22
申请人： HITACHI LTD
发明人： TAN TOSHIMI , KUNO KATSUKUNI , MIZOI TAKAO
IPC分类号： F01D5/10 , F01D5/02
摘要： PURPOSE:To prevent a rotor from being bent due to heat by mounting a regulating piece at the heat bending section in the rotor of a steam turbine and providing a counterweight at the axially symmetrical position of the regulating piece. CONSTITUTION:A regulating pipe 6 whose thermal expansion coefficient is different from that of a rotor material is mounted at the bending section of a rotor 1 in which bending occurs following the high ambient temperature. The axal working force F of the rotor 1 bends the rotor 1 in the reverse phase with the thermal bending of the rotor 1 and corrects the thermal bending of the rotor 1. A counterweight 10 is provided in the axially symmetrical position with the regulating pieces 6 and the unbalance of the rotor 1 is cancelled by the regulating piece 6. This can prevent the thermal bending of the rotor which follows the steam temperature and stabilize the rotor vibrationally.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式