EP1944100A1 - Dispositif de pliage destiné au pliage de la tôle de sécurité d'un rotor d'un turbine - Google Patents

Dispositif de pliage destiné au pliage de la tôle de sécurité d'un rotor d'un turbine Download PDF

Info

Publication number
EP1944100A1
EP1944100A1 EP07000380A EP07000380A EP1944100A1 EP 1944100 A1 EP1944100 A1 EP 1944100A1 EP 07000380 A EP07000380 A EP 07000380A EP 07000380 A EP07000380 A EP 07000380A EP 1944100 A1 EP1944100 A1 EP 1944100A1
Authority
EP
European Patent Office
Prior art keywords
groove
bending device
rotor
bending
locking plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07000380A
Other languages
German (de)
English (en)
Other versions
EP1944100B1 (fr
Inventor
Björn Bilstein
Peter Schröder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to DE502007001344T priority Critical patent/DE502007001344D1/de
Priority to EP07000380A priority patent/EP1944100B1/fr
Priority to AT07000380T priority patent/ATE439922T1/de
Priority to US12/008,008 priority patent/US7530254B2/en
Publication of EP1944100A1 publication Critical patent/EP1944100A1/fr
Application granted granted Critical
Publication of EP1944100B1 publication Critical patent/EP1944100B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
    • B21D7/063—Pliers with forming dies

Definitions

  • the invention relates to a bending device for bending a locking plate of a rotor of a turbine, which locking plate is inserted in a groove extending along the circumference of the rotor.
  • the object of the invention is therefore to provide a bending device for bending a locking plate, with a safe and reproducible at any time result for the locking plates to be folded can be achieved.
  • the object directed to the device is achieved with a bending device according to the features of claim 1.
  • the bending device comprises a holder having two sections, whose first section can be inserted into the groove of the rotor and whose second section is at Inserted in the groove holder protrudes from this and a rotatably mounted on the second portion lever with a contact surface for application to a leg to be folded over the securing plate inserted in the groove.
  • the invention is based on the recognition that the bending over of a securing plate, which is inserted in the circumferential groove of a rotor, can be carried out in a particularly simple and reliable manner, if a bending device is used which is secured in position during the bending process. This is achieved with a bending device, which is also used in that groove in which the locking plate has been mounted.
  • the right-angled before bending locking plate protrudes with one of its two legs out of the groove of the rotor.
  • the contact surface provided on the lever serves to abut against that leg of the securing plate which protrudes from the groove of the rotor.
  • the lever is pivotable about an axis of rotation which is perpendicular to the radial direction of the rotor when the bending device is in the operating position. This ensures that the leg of the security sheet to be bent is always bent to the exact planning.
  • the first portion of the holder along the extension of the groove bottom of the groove can be applied.
  • a safe operating position of the bending device can thus be achieved. Tilting of the bending device is prevented due to the flat contact of the first section on the groove bottom of the groove. This ensures that the axis of rotation of the lever is always aligned perpendicular to the radial direction of the rotor.
  • the first portion of the holder is provided with a recess.
  • the recess is arranged centrally on the first section viewed in the circumferential direction.
  • the recess is provided to receive either the locking plate holding bolt which extends through the locking plate, or to receive that leg of the locking plate, which is inserted in the groove.
  • the first portion of the holder has a wall thickness which corresponds to the width of the groove, reduced by the wall thickness of the securing plate.
  • the first portion has a wall thickness which corresponds to the width of the groove.
  • the bending device viewed in the circumferential direction of the rotor can be aligned with respect to this exactly, so that the bending device is always arranged in an intended operating position for bending in the leg of the securing plate to be bent. The bending device is then seated in the groove without play.
  • the second portion of the holder has a wall thickness which is greater than the width of the groove.
  • FIG. 1 is a cross section through the outer region of a rotor disk 10 of a turbine shown.
  • An axial direction of the rotor which coincides with its axis of rotation is designated A.
  • a so-called sealing element 14 is provided on at least one end face 12 of the rotor disk 10, which covers the end opening of one of the retaining grooves.
  • the sealing element 14 is inserted with its inner end 18 into a seal groove 16 that runs endlessly along the circumference of the rotor.
  • the circumferential seal groove 16 is limited on the one hand by the end face 12 of the rotor disk 10 and on the other hand by a thereto adjacent, likewise endlessly rotating first projection 20.
  • the further groove 24 is provided for receiving a securing plate 26.
  • On a side surface 28 of the further projection 22 distributed holes in the form of holes 30 are provided along the circumference, which extend through the side walls of the further groove 24 and the sealing groove 16.
  • Each bore 30 is provided for receiving a bolt 34 which hold the seated in the sealing groove 16 sealing elements 14 in their operating position and against displacement in the circumferential direction, ie perpendicular to the plane, secure.
  • FIG. 2 an embodiment of the locking plate 26 is shown with a first leg 36 and a second leg 38.
  • the two legs 36, 38 of the locking plate 26 are approximately perpendicular to each other before use.
  • the first leg 36 is formed flat and has a central hole 40 in which the bolt 34 is to be inserted.
  • the second leg 38 is partially narrower than the first leg 36 formed so that it ends with a tongue 42.
  • the tongue 42 is intended to cover at least partially in the installed state, the frontal opening of the bore 30.
  • FIG. 3 is in accordance with the arrangement FIG. 1 to be used bolts 34 shown in a perspective view.
  • the bolt 34 in this case has a first beveled end 44 and a second end 46, in the front side a bore 48, provided with a thread, is provided.
  • blades are inserted into not illustrated holding grooves.
  • the sealing element 14 is inserted by a combined radial and axial movement in the sealing groove 16 and then tilted to the end face 12 of the rotor disk 10 until it is aligned approximately parallel to the end face 12.
  • the locking plate 26 is inserted into the further groove 24 so that its hole 40 is aligned with the bore 30.
  • the bolt 34 is inserted into the bore 30, wherein this in a Recess of the sealing element 14 engages.
  • one of the legs of the securing plate 26 is bent by applying a force F such that after its free leg 36, the frontal opening of the bore 30 at least partially covered.
  • the bending device 50 in this case comprises a holder 52, which is composed of a first portion 54 and a second portion 56.
  • the first portion 54 is provided for insertion into the further groove 24 of the rotor.
  • the radially adjoining second section 56 on the first section 54 has a lever 60 with a contact surface 62 for application to the limb of the securing plate 26 inserted in the further groove 24.
  • the lever 60 is pivotable about an axis of rotation 64 which is perpendicular to the radial direction of the rotor when inserted in the groove 24 bending device 50.
  • the first portion 54 of the holder 52 is provided with a recess 66.
  • the recess 66 is provided for that, despite inserted in the further groove 24 bolt 34 and despite inserted locking plate 26, the first portion 54 can be additionally used in the further groove.
  • the recess 66-viewed in the circumferential direction of the rotor-to have a width which corresponds at least to the diameter of the bolt 34.
  • the first portion 54 of the holder 52 has a wall thickness which corresponds to the width of the further groove 24, reduced by the wall thickness of the securing plate 26.
  • the recess 66 has a width which corresponds at least to the width of the securing plate 26, as seen in the circumferential direction.
  • both the first leg 36 of the securing plate 26 and the first portion 54 each have a wall thickness which is equal to the width of the further groove 24.
  • the securing plate 26 is held approximately free of play in the further groove 24 during the bending process.
  • the locking plate 26 is then in a tensioned position, so that by operating the lever 60, the freely ending tongue 42 can be bent to the side surface 28 of the further projection 22 to cover the opening of the bore 30 at least partially.
  • FIG. 5 shows a perspective view of the bending device 50 in its operating position.
  • the bending device 50 is partially inserted with its holder 52 in the further groove 24.
  • the first section 54 which is radially inward in the operating position, is inserted completely in the groove 24.
  • FIG. 5 shows the sealing element 14 inserted in the sealing groove 16 and a holding groove 68 provided on the outer circumference of the rotor disk 10 for moving blades.
  • the locking plate 26 is already bent in the illustration shown, so that the second leg 38 of the locking plate 26, the opening of the bore 30 already partially closes and secures the bolt 34 against loss.
  • FIG. 6 shows a cross section through the arrangement according to FIG. 5 with arranged in the seal groove 16 sealing element 14, arranged in the further groove 24 locking plate 26 and inserted in the groove 24 bending device 50.
  • the bending device 50, the groove 24 and the locking plate 26 and the projection 22 are coordinated so that when the first portion 54 of the holder 50 is placed flat along the groove bottom of the groove 24, the abutment surface 62 of the lever 60 can be applied to the leg 38 'still to be folded over is.
  • the leg 38 'in the second position which is represented by 38'', to be bent. In this position, the second leg 38 "closes the bore 30.
  • each locking plate can be fixed in a predetermined manner to the rotor disk, which can ensure a particularly reliable and secure installation.
  • a bending device 50 for bending a locking plate 26 of a rotor of a turbine can be specified, by means of which a reliable attachment of the locking plate 26 takes place.
  • the bending device comprises a holder 52 having two sections 54, 56, the first section 54 of which is inserted into the groove 24 of the rotor and whose second section 56 projects out of the holder 52 inserted in the groove 24.
  • a second portion 56 rotatably mounted lever 60 By a second portion 56 rotatably mounted lever 60, the locking plate 26 can be reliably bent to secure a bolt 34 against loss.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP07000380A 2007-01-09 2007-01-09 Dispositif de pliage destiné au pliage de la tôle de sécurité d'un rotor d'un turbine Not-in-force EP1944100B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE502007001344T DE502007001344D1 (de) 2007-01-09 2007-01-09 Biegevorrichtung zum Einbiegen eines Sicherungsbleches eines Rotors einer Turbine
EP07000380A EP1944100B1 (fr) 2007-01-09 2007-01-09 Dispositif de pliage destiné au pliage de la tôle de sécurité d'un rotor d'un turbine
AT07000380T ATE439922T1 (de) 2007-01-09 2007-01-09 Biegevorrichtung zum einbiegen eines sicherungsbleches eines rotors einer turbine
US12/008,008 US7530254B2 (en) 2007-01-09 2008-01-08 Bending device for bending in a locking plate of a rotor of a turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07000380A EP1944100B1 (fr) 2007-01-09 2007-01-09 Dispositif de pliage destiné au pliage de la tôle de sécurité d'un rotor d'un turbine

Publications (2)

Publication Number Publication Date
EP1944100A1 true EP1944100A1 (fr) 2008-07-16
EP1944100B1 EP1944100B1 (fr) 2009-08-19

Family

ID=38068303

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07000380A Not-in-force EP1944100B1 (fr) 2007-01-09 2007-01-09 Dispositif de pliage destiné au pliage de la tôle de sécurité d'un rotor d'un turbine

Country Status (4)

Country Link
US (1) US7530254B2 (fr)
EP (1) EP1944100B1 (fr)
AT (1) ATE439922T1 (fr)
DE (1) DE502007001344D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107737821A (zh) * 2017-11-10 2018-02-27 中国航发动力股份有限公司 一种轴向可调式锁片弯曲装置及方法
EP3957828A1 (fr) * 2020-08-21 2022-02-23 Doosan Heavy Industries & Construction Co., Ltd. Structure d'assemblage de joints d'aubes de turbine, turbine à gaz la comprenant et procédé d'assemblage de joints d'aubes de turbine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1916382A1 (fr) * 2006-10-25 2008-04-30 Siemens AG Dispositif et procédé pour sécuriser un élément d'étanchéité sur un rotor
EP2218873A1 (fr) * 2009-02-17 2010-08-18 Siemens Aktiengesellschaft Section de rotor pour un rotor d'une turbomachine, aube directrice pour une turbomachine et élément de blocage
US9279325B2 (en) 2012-11-08 2016-03-08 General Electric Company Turbomachine wheel assembly having slotted flanges
JP5358031B1 (ja) 2013-03-22 2013-12-04 三菱重工業株式会社 タービンロータ、タービン、及びシール板の取外方法
US9970297B2 (en) 2014-08-29 2018-05-15 Rolls-Royce Corporation Composite fan slider with nano-coating
CN109648517A (zh) * 2018-12-10 2019-04-19 中国航发四川燃气涡轮研究院 一种滚轮式同步锁紧装置
CN110842062A (zh) * 2019-11-20 2020-02-28 中建四局贵州投资建设有限公司 一种用于铝合金窗框固定的折弯工具及方法

Citations (3)

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Publication number Priority date Publication date Assignee Title
DE1963364A1 (de) * 1969-01-17 1970-07-23 Westinghouse Electric Corp Kuehlanordnung fuer Gasturbinen der Scheibenbauart
US4846628A (en) * 1988-12-23 1989-07-11 United Technologies Corporation Rotor assembly for a turbomachine
JP2000008808A (ja) * 1998-06-25 2000-01-11 Honda Motor Co Ltd タービンロータのストッパピン折曲げ装置

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US3045329A (en) * 1959-07-30 1962-07-24 Gen Electric Method for assembling tongue-and-groove members with locking keys
US3248921A (en) * 1963-01-07 1966-05-03 Samuel W Trout Hand brake for use by sheet metal workers and the like
US3598503A (en) * 1969-09-19 1971-08-10 United Aircraft Corp Blade lock
DE2639200A1 (de) * 1976-08-31 1978-03-09 Volkswagenwerk Ag Laufrad fuer axialturbinen, insbesondere fuer gasturbinen
US4672836A (en) * 1986-04-14 1987-06-16 Wilkinson Herbert C Lock tab wrench
DE4300773C1 (de) * 1993-01-14 1993-11-18 Mtu Muenchen Gmbh Einrichtung zur axialen Laufschaufelsicherung und zur Beseitigung von Rotorunwuchten für axial durchströmte Verdichter oder Turbinen
US5901600A (en) * 1997-08-06 1999-05-11 Decker; Ronald R. Rod bending device
US6109877A (en) * 1998-11-23 2000-08-29 Pratt & Whitney Canada Corp. Turbine blade-to-disk retention device
US6023959A (en) * 1999-06-16 2000-02-15 Stratton; John Tool for bending a ceiling support rod
DE19950109A1 (de) * 1999-10-18 2001-04-19 Asea Brown Boveri Rotor für eine Gasturbine
US6837686B2 (en) * 2002-09-27 2005-01-04 Pratt & Whitney Canada Corp. Blade retention scheme using a retention tab
US7264448B2 (en) * 2004-10-06 2007-09-04 Siemens Power Corporation, Inc. Remotely accessible locking system for turbine blades
GB0423363D0 (en) * 2004-10-21 2004-11-24 Rolls Royce Plc Rotor assembly retaining apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1963364A1 (de) * 1969-01-17 1970-07-23 Westinghouse Electric Corp Kuehlanordnung fuer Gasturbinen der Scheibenbauart
US4846628A (en) * 1988-12-23 1989-07-11 United Technologies Corporation Rotor assembly for a turbomachine
JP2000008808A (ja) * 1998-06-25 2000-01-11 Honda Motor Co Ltd タービンロータのストッパピン折曲げ装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107737821A (zh) * 2017-11-10 2018-02-27 中国航发动力股份有限公司 一种轴向可调式锁片弯曲装置及方法
CN107737821B (zh) * 2017-11-10 2019-06-04 中国航发动力股份有限公司 一种轴向可调式锁片弯曲装置及方法
EP3957828A1 (fr) * 2020-08-21 2022-02-23 Doosan Heavy Industries & Construction Co., Ltd. Structure d'assemblage de joints d'aubes de turbine, turbine à gaz la comprenant et procédé d'assemblage de joints d'aubes de turbine
US11629604B2 (en) 2020-08-21 2023-04-18 Doosan Enerbility Co., Ltd. Structure for assembling turbine blade seals, gas turbine including the same, and method of assembling turbine blade seals

Also Published As

Publication number Publication date
DE502007001344D1 (de) 2009-10-01
EP1944100B1 (fr) 2009-08-19
US20080163665A1 (en) 2008-07-10
US7530254B2 (en) 2009-05-12
ATE439922T1 (de) 2009-09-15

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