EP3105011B1 - System zum klemmen eines teils und verfahren zum abdichten des innengehäuses eines niederdruckgleichrichters einer turbomaschine - Google Patents

System zum klemmen eines teils und verfahren zum abdichten des innengehäuses eines niederdruckgleichrichters einer turbomaschine Download PDF

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Publication number
EP3105011B1
EP3105011B1 EP15706915.4A EP15706915A EP3105011B1 EP 3105011 B1 EP3105011 B1 EP 3105011B1 EP 15706915 A EP15706915 A EP 15706915A EP 3105011 B1 EP3105011 B1 EP 3105011B1
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EP
European Patent Office
Prior art keywords
clamping
ram
pneumatic
hydraulic
sealing
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.)
Active
Application number
EP15706915.4A
Other languages
English (en)
French (fr)
Other versions
EP3105011A1 (de
Inventor
Romain René Marcel CHARDONNET
Jean-Yves François Henri MAILLET
Erwan SOUBIGOU
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.)
Safran Aircraft Engines SAS
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Safran Aircraft Engines SAS
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Publication date
Application filed by Safran Aircraft Engines SAS filed Critical Safran Aircraft Engines SAS
Publication of EP3105011A1 publication Critical patent/EP3105011A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/061—Arrangements for positively actuating jaws with fluid drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/14—Clamps for work of special profile
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
    • F01D25/285—Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/005—Repairing methods or devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/30—Manufacture with deposition of material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/50—Intrinsic material properties or characteristics
    • F05D2300/516—Surface roughness

Definitions

  • the present invention generally relates to the clamping of parts.
  • Such a system comprises for example a holding pad which forms a first jaw and which is coupled to a clamping screw. Said clamping screw passes through said pad and is engaged in a reference support with respect to which it is desired to position the part during the intervention.
  • Such a manual system has the disadvantage of not allowing a uniform clamping of a flange to another and require long setting times.
  • the force exerted on the part is not repetitive and can be highly variable from one operator to another.
  • Clamping is done by hydraulic or pneumatic compression.
  • Control and monitoring of the clamping pressure is also complex.
  • rectifier must be rotated.
  • a clamping by pneumatic or hydraulic energy would require to be able to accompany this rotation by winding the pipes of the hydraulic or pneumatic supply, which is particularly complex to organize.
  • the center of the rectifier can not be used to pass such pipes since it is used for other functions in these operations.
  • An object of the invention is to solve the problems of the state of the art and to propose a system that does not have the aforementioned drawbacks.
  • the invention proposes a clamping system comprising a clamping jaw mounted on the axis of a pneumatic or hydraulic jack, wherein said jack is of a structure which, when the supply of said jack in pneumatic or hydraulic energy is cut off, drives the clamping jaw towards its clamping position, supplying said jack with pneumatic or hydraulic energy opposing said clamping, characterized in that it comprises locking means of the jack when the clamping jaw is in the released position.
  • the proposed clamping system keeps the workpiece clamped when the pneumatic supply is cut off. This eliminates various needs for power, energy storage, etc.
  • the clamping is made repetitive, regardless of the flange.
  • a tool for sealing and / or injecting abradable on the inner shell of a low-pressure turbomachine rectifier characterized in that it comprises an intervention bench and at least one flange comprising such a system. clamping.
  • the rectifier R illustrated on the figure 1 comprises an inner ring VI, an outer shell VE and blades A assembled by welding to the outer shell VE.
  • These blades A are integral with the inner ring VI through an abradable surface AB.
  • this abradable surface is performed during sealing and injection operations requiring clamping of the outer shell VE and the inner ring VI on a support structure of a response bench.
  • the inner ferrule VI and outer ferrule VE are held at several points by means of reference flanges.
  • Such a clamping system is a system comprising one or more springs 2 exerting on the piston 3 of a jack 4 a force which is used to perform said clamping.
  • a hydraulic / pneumatic circuit 10 is provided, but only to ensure the loosening of the clamping system 1, no power supply being necessary for clamping.
  • one or more spring (s) 2 is (are) compressed (s) between the piston 3 and the bottom 5a of the body 5 of the cylinder 4.
  • the piston 3 is integral with the axis 6 of the cylinder, which opens out of the body 5.
  • said axis 6 is itself integral with a clamping jaw 7.
  • a cam 8 is provided to lock the clamping jaw 7 and the axis 6 in a disengaged high position (release position).
  • said cam 8 cooperates with a groove 9 that has the axis 6 and wherein it is possible to engage said cam 8 when the jaw 7 is in the high position.
  • the positioning of the cam on the cylinder 4 or disengagement is for example made manually.
  • the loosening is obtained by supplying pneumatic energy to the circuit 10 along the arrow E. A force is exerted against the piston 3, which is movable in the direction of the rise along the arrow M inside said body 5 and compresses the springs 2.
  • the displacement of the piston 3 and the axis 6 inside the body 5 of the jack 4 is done in a helical movement to rotate the jaw 7 90 degrees on itself when it moves to the loosening position.
  • a helical movement facilitates the disengagement of the workpiece to be clamped.
  • the body 5 of the cylinder 4 may be associated with different means 11 (clamping jaws for example) which allow to fix the system 1 on a given support with precision.
  • the figure 4 illustrates the use of clamping systems of the type of the system 1 which has just been described to achieve the positioning of the VI and VE ferrules of a rectifier R on an intervention bank B.
  • the different reference flanges 1 are first fixed in a precise manner on the B bench thanks to the fastening means 11 ( Figure 3 ) that they comprise, the flanges 1 and the bench B constituting part of the interventional equipment.
  • the rectifier R is thus maintained in position on the intervention bench B, the sealing operations are performed on the inner surfaces of the inner shell and in the openings thereof.
  • the sealing is done for example by depositing an RTV silicone. It allows to create a sealing of the track before injection of the abradable material itself.
  • the polymerization of the abradable material is then carried out on openings of the inner ferrule.
  • the unclamping / unlocking of the different flanges 1 is then ensured by putting the different flanges under hydraulic / pneumatic pressure.
  • the reference flanges 1 can then be removed.
  • the cams 8 can be disengaged in order to limit the biasing of the springs 2.
  • the clamping performed is particularly reliable and is not dependent on the level of hydraulic / pneumatic pressure provided by the circuits.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jigs For Machine Tools (AREA)
  • Clamps And Clips (AREA)
  • Surgical Instruments (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Claims (8)

  1. Klemmsystem (1), aufweisend eine Klemmbacke (7), die auf der Achse (6) eines pneumatischen oder hydraulischen Stellglieds (10) angebracht ist, wobei das Stellglied eine Struktur hat, die, wenn die Versorgung des Stellglieds mit pneumatischer oder hydraulischer Energie unterbrochen ist, die Klemmbacke in ihre Spannposition bewegt, wobei die Versorgung des Stellglieds mit pneumatischer oder hydraulischer Energie dem Spannen entgegenwirkt, dadurch gekennzeichnet, dass es Verriegelungsmittel (8) des Stellglieds aufweist, wenn die Klemmbacke in gelöster Position ist.
  2. Klemmsystem nach Anspruch 1, dadurch gekennzeichnet, dass das Stellglied einen Kolben und mindestens eine Kompressionsfeder aufweist, die gegen den Kolben wirkt, wobei die Klemmbacke mit dem Kolben verbunden ist und verlagert wird, um dessen Spannen durch die Kompressionskraft der Feder(n) durchzuführen.
  3. Klemmsystem nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass die Struktur des Stellglieds geeignet ist, damit die Bewegung der Klemmbacke zwischen ihrer gespannten und gelösten Position in einer schraubenförmigen Bewegung erfolgt.
  4. Klemmsystem nach Anspruch 3, dadurch gekennzeichnet, dass die Rotation der Klemmbacke zwischen der gespannten und gelösten Position 90° beträgt.
  5. Verfahren zum Abdichten und/oder Einspritzen von abreibbarem Material auf das Innengehäuse (VI) eines Niederdruckgleichrichters (R) einer Turbomaschine, dadurch gekennzeichnet, dass es die folgenden Schritte umfasst, die bestehen im:
    - Positionieren auf einem Arbeitsstand (B) von Klemmen, aufweisend ein Klemmsystem nach einem der vorangehenden Ansprüche,
    - Positionieren des Gleichrichters auf dem Stand,
    - Entfernen der Verriegelungsmittel des Stellglieds im Bereich des Außengehäuses (VE),
    - Spannen mindestens einer Klemme durch Unterbrechen ihrer pneumatischen oder hydraulischen Versorgung.
  6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass das Klemmen des Außengehäuses und dann das Klemmen des Innengehäuses durchgeführt wird.
  7. Verfahren nach einem der Ansprüche 5 oder 6, dadurch gekennzeichnet, dass die Klemmen nach den Abdichtungs- und/oder Polymerisationsmaßnahmen durch pneumatische oder hydraulische Versorgung entriegelt werden.
  8. Werkzeug zum Abdichten und/oder Einspritzen von abreibbarem Material auf das Innengehäuse eines Niederdruckgleichrichters einer Turbomaschine, dadurch gekennzeichnet, dass es eine Arbeitsbank und mindestens eine Klemme aufweist, die ein Klemmsystem nach einem der Ansprüche 1 bis 4 aufweist.
EP15706915.4A 2014-02-14 2015-02-12 System zum klemmen eines teils und verfahren zum abdichten des innengehäuses eines niederdruckgleichrichters einer turbomaschine Active EP3105011B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1451204A FR3017556B1 (fr) 2014-02-14 2014-02-14 Systeme de bridage de piece et procede d'etanchage de la virole interieure d'un redresseur basse pression de turbomachine
PCT/FR2015/050354 WO2015121592A1 (fr) 2014-02-14 2015-02-12 Système de bridage de pièce et procédé d'étanchage de la virole intérieure d'un redresseur basse pression de turbomachine

Publications (2)

Publication Number Publication Date
EP3105011A1 EP3105011A1 (de) 2016-12-21
EP3105011B1 true EP3105011B1 (de) 2018-04-04

Family

ID=50424629

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15706915.4A Active EP3105011B1 (de) 2014-02-14 2015-02-12 System zum klemmen eines teils und verfahren zum abdichten des innengehäuses eines niederdruckgleichrichters einer turbomaschine

Country Status (8)

Country Link
US (1) US10493600B2 (de)
EP (1) EP3105011B1 (de)
CN (1) CN106232299B (de)
BR (1) BR112016018524B1 (de)
CA (1) CA2939059C (de)
FR (1) FR3017556B1 (de)
RU (1) RU2700438C2 (de)
WO (1) WO2015121592A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110382166B (zh) * 2017-03-17 2021-11-09 西门子歌美飒可再生能源公司 对齐工具、切割装置和用于处理工件的方法
CN108927671A (zh) * 2017-05-22 2018-12-04 元生智汇实业有限公司 加工治具
BE1027875B1 (fr) 2019-12-17 2021-07-15 Safran Aero Boosters Sa Système de bridage de pièce
US20230140261A1 (en) * 2020-04-10 2023-05-04 Safran Aircraft Engines Mold for manufacturing a turbine engine fan casing from a composite material
CN111376128B (zh) * 2020-04-30 2021-10-22 安徽中材新材料科技有限公司 一种外圆磨床

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SU416494A1 (de) * 1970-10-19 1974-02-25
US3905279A (en) * 1973-09-13 1975-09-16 United Hydraulics Corp Piston and cylinder assembly with external mechanical lock
EP0133634B1 (de) * 1983-08-13 1988-08-10 E. Bruderer Maschinenfabrik AG Werkzeugspannvorrichtung
SU1382633A1 (ru) * 1986-10-04 1988-03-23 Запорожский Проектно-Конструкторский И Технологический Институт Прижимное устройство
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Also Published As

Publication number Publication date
US20170173762A1 (en) 2017-06-22
BR112016018524B1 (pt) 2021-02-02
EP3105011A1 (de) 2016-12-21
CA2939059A1 (fr) 2015-08-20
CA2939059C (fr) 2021-12-07
FR3017556B1 (fr) 2016-09-16
RU2016136760A (ru) 2018-03-19
CN106232299B (zh) 2019-06-14
US10493600B2 (en) 2019-12-03
BR112016018524A2 (pt) 2018-05-08
RU2016136760A3 (de) 2018-10-22
CN106232299A (zh) 2016-12-14
WO2015121592A1 (fr) 2015-08-20
FR3017556A1 (fr) 2015-08-21
RU2700438C2 (ru) 2019-09-17

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