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1. 发明专利

JPH06249285A DYNAMIC VIBRATION ABSORBING TYPE DAMPING DEVICE 失效
公开(公告)号：JPH06249285A
公开(公告)日：1994-09-06
申请号：JP3598093
申请日：1993-02-25
申请人： TOSHIBA CORP
发明人： AIDA YASUHIKO , NASUDA TOSHIAKI , MIYANO HIROSHI , HATTORI YASUSHI
IPC分类号： E04H9/02 , F16F15/02 , F16F15/03
摘要： PURPOSE:To provide a dynamic vibration absorbing type damping device in which a movable weight part is supported so as to follow to vibration in any direction of horizontal two-dimension, and damping effect is exhibited in a plurality of direct ions while enabling to easily set the arrangement. CONSTITUTION:This dynamic vibration absorbing type damping device is constituted of conductor plates 9 arranged around a movable weight part 5 receiving inertia force, yokes 10 in which magnets 11a, 11b are arranged on the upper and lower end faces in opposite to each other and the conductor plates 9 are sandwiched between through upper and lower clearances 12a, 12b, and spring elementa 6 of which one-side end parts are connected to the circumference of the movable weight part 5 and the other end parts are connected to locking structures arranged in the many isotropic directions in a receiving vessel 7.

2. 发明专利

JPH1136803A GAS TURBINE 失效
公开(公告)号：JPH1136803A
公开(公告)日：1999-02-09
申请号：JP18803397
申请日：1997-07-14
申请人： TOSHIBA CORP
发明人： NASUDA TOSHIAKI , SAKAKIDA HITOSHI , YAMASHITA TATSUO , HIRANO TOSHIO
IPC分类号： F01D5/08 , F01D5/18 , F01D25/12 , F01K17/04 , F02C7/06 , F02C7/18
摘要： PROBLEM TO BE SOLVED: To stably operate a gas turbine by preventing a bearing from being heated. SOLUTION: A stub shaft 1 is arranged in a casing 7 and supported by a bearing 3 so as to rotate freely. Disks 11, 12, 13 are held by the stub shaft 1, and moving blades 14, 15, 16 are fixed to outer peripheries of the disks 11, 12, 13. Steam is supplied from a steam supply passage 8 provided in the stub shaft 1 to a side of the buckets 14, 15, 16. The steam which has cooled the moving blades 14, 15, 16 and is turned to be high in temperature flows into a space 37 via a steam collecting passage 35 before the steam is discharged from an outlet 38 to a steam collecting port 5. The outlet 38 is provided between the disks 11, 12, 13 and the bearing 3 to prevent the bearing 3 from being heated caused by high-temperature steam in the steam collecting passage 35.

3. 发明专利

JPH09133127A PAD-TYPE JOURNAL BEARING 失效
公开(公告)号：JPH09133127A
公开(公告)日：1997-05-20
申请号：JP29135995
申请日：1995-11-09
申请人： TOSHIBA CORP
发明人： SAKAKIDA HITOSHI , NASUDA TOSHIAKI , YAMASHITA TATSUO , HIRANO TOSHIO
IPC分类号： F16C17/03 , F16C23/04
摘要： PROBLEM TO BE SOLVED: To avoid harmonic resonance based on the rocking vibration of a pad and to make the vibration of a pad-type journal bearing sufficiently stable. SOLUTION: This pad-type journal bearing has a cylindrical bearing inner ring 21 and at least one circular pad 22 having a spherical back face 22 b. The pad 22 is rockingly disposed in a state in which the back face 22b is in contact with the inner circumferential surface 21a of the bearing inner ring 21 and the rocking vibration of the pad 22 makes the oil film pressure of lubricating oil change to support the journal of a rotating shaft in automatic aligning state. The back face 22b is formed in a radius of curvature Ria as a means for avoiding harmonic resonance such that the frequency of rocking vibration of the pad 22 is N and 1/N times rotation frequency (where N is a natural number of 1 or more) plus a prescribed margin, or off a harmonic frequency.

4. 发明专利

JPH01310070A PLANT OPERATION ROOM 失效
公开(公告)号：JPH01310070A
公开(公告)日：1989-12-14
申请号：JP13843388
申请日：1988-06-07
申请人： TOSHIBA CORP
发明人： NASUDA TOSHIAKI
IPC分类号： E04H5/02 , E04H9/02 , G21C13/02 , G21C13/024 , G21D3/04
摘要： PURPOSE:To ensure a pertinent and quick response operation by providing an earthquake detector outside a plant operation room made free from a vibration, judging the degree of an earthquake upon receipt of an output signal from the detector and informing the result of the judgement to an operator. CONSTITUTION:A plant operation room 7 is provided in a control shelter 3 supported on a foundation 4 via a vibration-free device 9. Also, there are provided a signal receiving cable 11 for receiving an output signal from an earthquake detector 10 provided in a nuclear reactor shelter 1, a turbine shelter 2 or the like, a judgement device 12 and an earthquake alarming device 13 respectively in the operation room 7. Furthermore, the shelter 3 is made free from a vibration for keeping the performance of machines, equipment, facilities and the like installed therein, and the occurrence or non-occurrence of an earthquake and the extent thereof are judged with the judgement device 12 on the basis of an output signal from the detector 10. Finally, the device 13 is thereby caused to operate for response operation by an operator. According to the aforesaid construction, it becomes possible to prevent erroneous judgement and operation, and ensure proper and quick reaction.

5. 发明专利

JPS63312594A PIPING SUPPORTER 失效
公开(公告)号：JPS63312594A
公开(公告)日：1988-12-21
申请号：JP14791387
申请日：1987-06-16
申请人： TOSHIBA CORP
发明人： NASUDA TOSHIAKI
IPC分类号： F16L3/20 , F16L3/215

6. 发明专利

JP2000045702A GAS TURBINE ROTOR AND ITS AXIAL VIBRATION ADJUSTING METHOD 失效
公开(公告)号：JP2000045702A
公开(公告)日：2000-02-15
申请号：JP21808898
申请日：1998-07-31
申请人： TOSHIBA CORP
发明人： YAMASHITA TATSUO , SAKAKIDA HITOSHI , HIRANO TOSHIO , NASUDA TOSHIAKI , SAITO IKUO
IPC分类号： F01D5/06 , F01D5/10 , F02C7/00
摘要： PROBLEM TO BE SOLVED: To provide a gas turbine rotor and its axial vibration adjusting method in which the mass weight of a wheel disc is adjusted, and a critical speed is detuned from an operational rotation speed to restrain low an axial vibration generated during the operation of the turbine. SOLUTION: In this gas turbine rotor, an outer diameter side between a rim 17a of one wheel disc 16a and a rim 17b of an adjacent wheel disc 16b is provided with a detunning means 23. In an axial vibration adjusting method, an axial vibration is analyzed based on data, and the critical speed of the gas turbine rotor is computed from the analyzed axial vibration, and the computed critical speed of the gas turbine rotor is compared with an operational number of revolutions, and in the case of the occurrence of deviation, the detunning means is adjusted, and after the adjustment of the detunning means, the natural frequency of the gas turbine rotor is checked, and in addition, the critical speed of gas turbine rotor is checked.

7. 发明专利

JP2000032695A SUPPORT STRUCTURE FOR END PART OF STATOR COIL IN ELECTRIC ROTATING MACHINE 失效
公开(公告)号：JP2000032695A
公开(公告)日：2000-01-28
申请号：JP19861698
申请日：1998-07-14
申请人： TOSHIBA CORP
发明人： SAITO IKUO , ICHIMONJI MASAYUKI , HIRANO TOSHIO , NASUDA TOSHIAKI
IPC分类号： H02K3/50
摘要： PROBLEM TO BE SOLVED: To obtain a support structure, in which the high rigidity of the fixation part in the end part of a stator coil can be obtained by a simple operation and in which the number of working man-hours is reduced. SOLUTION: An insulating ring 8 is arranged on the inner side of an inside coil 2b. A screw hole 5a is formed in a binding ring 5, arranged on the outer side of an outside coil 2a in a position which corresponds to a hole 8a. A stud bolt 9 is passed through the hole 8a, a screw thread part 9a on one end side is screwed to a nut 11 in the upper position of a washer 10, and a screw thread part 9b on the other end side is screwed to the screw hole 5a. That is to say, the insulating ring 8 and the binding ring 5 are tightened by the stud bolt 9. A fixed or higher compressive force acts on the outside coil 2a, the inside coil 2b and a cushion material 6, which are arranged and installed between the insulating ring 8 and the stud bolt 9.

8. 发明专利

JPH1144318A SLIDING BEARING 失效
公开(公告)号：JPH1144318A
公开(公告)日：1999-02-16
申请号：JP20352897
申请日：1997-07-29
申请人： TOSHIBA CORP
发明人： SAKAKIDA HITOSHI , NASUDA TOSHIAKI , YAMASHITA TATSUO , HIRANO TOSHIO
IPC分类号： F16C17/02 , F16C23/02 , F16C25/02
摘要： PROBLEM TO BE SOLVED: To reduce harmonic resonance accompanying oscillation of an inner ring and to attain stable operation by forming a clearance between the spherical surface on the outer diameter side of a bearing inner ring and the spherical surface on the inner diameter side of an outer ring, and detuning the oscillating natural frequency of the inner ring against the rotational frequency of a rotary shaft. SOLUTION: The radius of curvature of the spherical surface 24 on the outer diameter side passing the center Ob of a bearing inner ring 20 is set to be Ri, the radius of curvature of the spherical surface 25 on the inner diameter side 23 passing the center Op of a bearing outer ring 21 is set to be Ro, they are formed so as to be Ro-Ri>0, meanwhile a clearance Cr is formed between the radii of curvature Ri and Ro, so that the bearing inner ring 20 can oscillatably follow to the rotational displacement of a journal part. The clearance Cr is set to be a distance added with a surplus of about ±10%, so that the oscillating natural frequency fn of the bearing inner ring 20 can be detuned from N times and 1/N times such as 1/2fo times, to times, 2fo times the rotational frequency fo of the journal part. Hereby, a large-sized rotary machine can be operated further stably.

9. 发明专利

JPH06129486A VERTICAL MOTION QUAKE-PROOF DEVICE 失效
公开(公告)号：JPH06129486A
公开(公告)日：1994-05-10
申请号：JP27730692
申请日：1992-10-15
申请人： TOSHIBA CORP
发明人： NASUDA TOSHIAKI
IPC分类号： E04F15/18 , E04H9/02 , F16F15/02
摘要： PURPOSE:To improve the extent of facility by making vertical quake-proof achievable so effectively, reducing the height of a device, and enabling it to ease any restriction of a setup place. CONSTITUTION:A base 2 is set up in a quake-proof setup floor 1, and an equipment setting frame 3 is placed on this base 2 via a guide member consisting of an outer cylinder 4 and an inner cylinder 5. Each upper end of a pair of connecting rods 6 is attached to a lower surface of the equipment setting frame 3 via a pin 7. Each rolling ring 8 is attached to each end of these connecting rods 6. In addition, a coil spring 9 as an elastic member is connected to an interval between these paired connecting roods 6 and 6.

10. 发明专利

JPH02140697A SUPPORTING DEVICE FOR STORAGE VESSEL 失效
公开(公告)号：JPH02140697A
公开(公告)日：1990-05-30
申请号：JP29355388
申请日：1988-11-22
申请人： TOSHIBA CORP
发明人： NASUDA TOSHIAKI
IPC分类号： G21C19/06 , G21F7/00
摘要： PURPOSE:To obtain a supporting device for a storage vessel whose earthquake resistance is high, and also, whose cooling efficiency is satisfactory by providing a holding part for holding the storage vessel, a projecting part formed in the holding part, a flange part supported by a supporting floor, and a cover for preventing the scattering of a material. CONSTITUTION:A storage facility 2 of a material having decay heat is installed on a ground 1. The material is contained in a storage vessel 5, and the storage vessel 5 is supported by a supporting device 4 installed on a supporting floor 3. The supporting device 4 for supporting the storage vessel 5 consists of a holding part 13, a flange part 14, a cover 15, and a projecting part 16 formed in the holding part. In this state, cooling air for eliminating heat generated from the material passes through a suction side filter 7 from a suction port 6, and taken into the storage facility 2 by a suction use pump 8. The cooling air passes through a flow air hole 9 provided on the supporting floor 3, comes into contact with the supporting device 4, and absorbs heat generated from the material having decay heat by a heat transfer from the surface of the supporting device 4.

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