WO2009051518A1 - Procédé de fabrication d'une garniture de balai et procédé de mise en oeuvre correspondant - Google Patents

Procédé de fabrication d'une garniture de balai et procédé de mise en oeuvre correspondant Download PDF

Info

Publication number
WO2009051518A1
WO2009051518A1 PCT/RU2008/000335 RU2008000335W WO2009051518A1 WO 2009051518 A1 WO2009051518 A1 WO 2009051518A1 RU 2008000335 W RU2008000335 W RU 2008000335W WO 2009051518 A1 WO2009051518 A1 WO 2009051518A1
Authority
WO
WIPO (PCT)
Prior art keywords
annular
elastic material
base
bevels
winding
Prior art date
Application number
PCT/RU2008/000335
Other languages
English (en)
Russian (ru)
Inventor
Nikolay Kuzmich Aksenov
Aleksey Vladimirovich Goryachev
Evgeniy Karlovich Megzil
Andrey Aleksandrovich Strukov
Original Assignee
Central Institute Of Aviation Motors (Ciam)
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 Central Institute Of Aviation Motors (Ciam) filed Critical Central Institute Of Aviation Motors (Ciam)
Publication of WO2009051518A1 publication Critical patent/WO2009051518A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
    • F16J15/3288—Filamentary structures, e.g. brush seals

Definitions

  • the invention relates to mechanical engineering and can be most widely used in engine building.
  • labyrinth seals are usually installed, the life of which is unlimited, because they are contactless. But due to the presence of a gap between the rotor and stator parts, the labyrinth seals are characterized by increased air leaks compared to contact seals. About 10 times less air penetrates through contact seals compared to labyrinth ones.
  • Contact seals for example carbon graphite, are usually used in the oil cavities of bearings, i.e. where relatively low temperatures (up to 400 - 45O 0 C) and small peripheral rotational speeds (up to 130m / s). In more severe operating conditions, contact seals wear out quickly and fail.
  • Brush seals have become more widespread, air flow through which is 3-5 times lower than labyrinth ones. Brush seals provide reliable contact between the rotor and stator parts of the seal. Due to the elasticity of the wire, the wear of brush seals is much less than that of contact seals and, accordingly, their life will be longer.
  • brush seals are used both in the flow part of gas turbine engines and in their oil
  • the proposed solution is an Antonov method for manufacturing a brush seal and a device for its implementation, which consists in collecting a toroidal mandrel from an annular base and two lateral annular clips, on the peripheral part of which coaxial holes are made. Oblique sections are performed on the side ring cages, and side bevels are applied to the ring base. The annular base is placed between the lateral annular clips so that their inclined sections are joined with the side bevels of the annular base.
  • annular base and the lateral annular clips are fastened together by means of fasteners through coaxial holes, which in the assembly form a single toroidal mandrel with annular surfaces on which axial notches are applied, serving as guides for winding an elastic material, for example, a metal wire, which is pressed at the end of the winding two annular cheeks to a toroidal mandrel.
  • the peripheral parts of the annular cages together with the fasteners and the adjacent section of the elastic material are cut around the circumference and removed.
  • the adjacent clip, cheek and elastic material are rigidly fastened together around the periphery, for example, by welding, the inner portion of the elastic material is cut together with the adjacent part of the annular base, the adjacent annular clips are separated, the remaining part of the annular base is removed, and two sets of brush seals are obtained.
  • the side bevels on the annular base are applied so that they form a protruding part of the annular base, and one of its side bevels is made on a smaller diameter compared to the other side bevel.
  • Inclined sections on the lateral ring cages are carried out so that when articulating the ring cages with the ring base, they form a conjugate permanent connection. In this case, one inclined slice is placed relative to another inclined slice on diameters
  • SUBSTITUTE SHEET (RULE 26) corresponding to the diameters of the side bevels of the annular base. Ring cheeks perform the size of the side ring clips. After winding the elastic material and trimming around the periphery and the inner annular surface of the toroidal mandrel, two identical sets of brush seals are obtained, i.e. with the same slope of the elastic material.
  • a device for manufacturing a brush seal which comprises an annular base with lateral bevels, two lateral annular cages having oblique sections and in an assembly forming a toroidal mandrel with annular surfaces, on which axial notches are applied, serving as guides for winding on the toroidal a mandrel of an elastic material, such as a metal wire.
  • an elastic material such as a metal wire.
  • the device also includes a cutting device, fastening equipment, for example, a welding machine, connecting the elastic material with adjacent annular holder and annular cheeks.
  • a cutting device fastening equipment, for example, a welding machine, connecting the elastic material with adjacent annular holder and annular cheeks.
  • the side bevels on the annular base are made so that they form a protruding part of the annular base.
  • One of its side bevels is located on a smaller diameter compared to the other side bevel.
  • the inclined sections on the side ring rings are made so that when the ring rings are joined with the ring base, they form a paired one-piece connection, and one inclined section is located relative to the other inclined section on the diameters corresponding to the diameters of the side bevels of the ring base.
  • the annular cheeks are made according to the sizes of the lateral annular clips. After winding the elastic material and trimming around the periphery and along the inner annular surface of the toroidal mandrel, two sets of brush seals with the same slope of the elastic material are obtained.
  • SUBSTITUTE SHEET (RULE 26) A known method of manufacturing a brush seal, US patent JYs4934759 from 12/20/1993, which consists in collecting a toroidal mandrel from an annular base and two side annular clips, winding an elastic material, for example, a metal wire, which is then pressed by two annular cheeks to the mandrel, fasten the elastic material along the periphery of the mandrel with the adjacent clip and cheek and cut the inner portion of the elastic material to the desired size. The result is two complete sets of brush seals.
  • This method describes a device for manufacturing a brush seal, containing a toroidal mandrel designed for winding on it an elastic material, such as a metal wire, and consisting of an annular base and two side annular clips, as well as two cheeks, pressing the elastic material to the mandrel after winding, a cutting device and fastening equipment, for example, a welding machine connecting elastic material to adjacent ones - a clip and a cheek.
  • an elastic material such as a metal wire
  • the disadvantage of the data of the method and device for its implementation is that the mandrel elements - clips and base - are not rigidly connected to each other and as a result, before winding the elastic material and / or during the winding, they can disintegrate or shift.
  • Adjacent cage, cheek and elastic material are rigidly fastened together at the periphery and cut off the inner portion of the elastic material together with the adjacent part of the base, after which adjacent ring cages are separated and the remaining part of the base is removed, obtaining two sets of brush seals.
  • a device comprising a toroidal mandrel consisting of an annular base having side bevels and two lateral annular clips having inclined sections, and axial notches are applied on the annular surfaces of the toroidal mandrel, which serve as guides for winding the mandrel of an elastic material, for example metal wire.
  • an elastic material for example metal wire.
  • coaxial holes are drilled into which fasteners are inserted, and two cheeks pressing elastic material to the mandrel, a cutting device and fastening equipment, for example, a welding machine connecting elastic material to adjacent cage and cheek.
  • the objective of the claimed technical solutions is to improve the quality of manufacture of brush seals, increase the productivity of their manufacture, the life of brush seals and the reliability of their design.
  • the annular base and the lateral annular clips are fastened together using fasteners through coaxial holes, forming a single toroidal mandrel with annular surfaces on which axial notches are applied, serving as guides for winding elastic material, for example, a metal wire, which is pressed by two ring cheeks at the end of the winding to the toroidal mandrel, the peripheral parts of the annular clips together with fasteners and the adjacent section of the elastic material are cut around the circumference and yayut.
  • winding elastic material for example, a metal wire
  • the adjacent clip, cheek and elastic material are rigidly fastened together around the periphery, for example, by welding, the inner portion of the elastic material is cut together with the adjacent part of the annular base, the adjacent ring clips are separated, the remaining part of the annular base is removed, and two sets of brush seals are obtained. Moreover, the side bevels on the annular base are applied so that they form a protruding part of the annular base.
  • One of the side bevels of the annular base is made on a smaller diameter compared to the other side bevel, and the inclined sections on the side annular cages are made so that when articulating the ring cages with the annular base, they form a paired one-piece connection, and one inclined cut is relative to the other inclined a cut on the diameters corresponding to the diameters of the lateral bevels of the annular base, while the annular cheeks are sized according to the sizes of the lateral annular yokes.
  • a device for the manufacture of a brush seal that implements the Antonov method of manufacturing a brush seal, contains an annular base with lateral bevels, two lateral annular cages having oblique sections and in the assembly forming a toroidal mandrel with annular surfaces that are notched, serving as guides for winding onto a toroidal mandrel of an elastic material, for example a metal wire.
  • an elastic material for example a metal wire.
  • the device also includes a cutting device, and fastening equipment, for example, a welding machine connecting elastic material with adjacent annular holder and annular cheeks.
  • a cutting device for example, a welding machine connecting elastic material with adjacent annular holder and annular cheeks.
  • the side bevels on the annular base are made so that they form a protruding part of the annular base.
  • One of the side bevels of the ring base is located on a smaller diameter compared to the other side bevel, and the inclined sections on the side ring rings are made so that when the ring rings are joined with the ring base, they form a paired one-piece connection, and one inclined section is located relative to the other inclined section on diameters corresponding to the diameters of the side bevels of the annular base.
  • the annular cheeks are made according to the sizes of the lateral annular clips. After winding the elastic material and trimming around the periphery and along the inner annular surface of the toroidal mandrel, two identical sets of brush
  • the proposed Antonov method of manufacturing a brush seal differs from the known one in that the side bevels are applied so that they form a protruding part of the base, and the inclined sections are made so that when combining the clips and the base into the mandrel, the inclined sections form annular depressions that are combined with the side bevels of the base .
  • the proposed method of Antonov’s production of brush seals differs from the known one in that one side bevel of the annular base is located on a smaller diameter compared to the other side bevel, and the inclined sections on the side annular cages are made so that when the annular cages are joined with the annular base, they form a conjugate one-piece connection, and one inclined slice is located relative to another inclined slice at diameters corresponding to the diameters of the side bevels of the annular base.
  • the proposed device for the manufacture of brush seals differs from the known one in that the elements of the toroidal mandrel, on which the elastic material will be wound, have the following features: the lateral bevels of the annular base are applied so as to form the protruding part of the base, and the inclined sections are made on the side annular clips so that when assembling the mandrel, the sections of the clips form annular depressions adjacent to the protruding side bevels of the toroidal mandrel.
  • the advantage of the proposed Antonov method of manufacturing a brush seal and the device that implements it is that the mandrel elements — two clips and a base — are rigidly bonded to each other both before winding the elastic element and during winding due to the protruding side bevels of the annular base and troughs of inclined sections ring clips, as well as due to fasteners inserted into the coaxial holes of the ring clips.
  • the advantage of the proposed Antonov method of manufacturing a brush seal and a device implementing it is that after winding the elastic material, trimming around the periphery and along the inner annular surface of the mandrel, two identical brush seals are obtained, i.e. with the same slope of the elastic material, and not two mirror seals - as in the prototype.
  • FIG. 1 schematically shows the elements of a toroidal mandrel prepared for its assembly.
  • FIG. 2 shows a toroidal mandrel with wound elastic material.
  • FIG. 3 shows a toroidal mandrel after trimming around the periphery of the elastic material and fastening it to adjacent annular cheek and clip;
  • FIG. 4 shows a toroidal mandrel after trimming along the inner circumference of the elastic material and the adjacent portion of the annular base
  • FIG. 5 shows the separation of two sets of brush seals and the removal of base residues.
  • a device implementing the Antonov method of manufacturing a brush seal in FIG. 1, 2, 3, 4, 5 contains a mountainous mandrel I 5 an annular base 2 with side bevels 3, 4, two annular rings 5, 6 with inclined sections 7, 8 and with coaxial holes 9, 10 - respectively, fasteners 11, axial notches 12, elastic material 13, two annular cheeks 14, 15, a cutting line 16 of the peripheral portion of the elastic material 13 together with the corresponding part of the annular clips 5, 6 and cheeks 14, 15, in FIG. 3 is indicated by a dotted line, fastening seams 17, trim line 18
  • SUBSTITUTE SHEET (RULE 26) the inner portion of the elastic material 13 together with the corresponding part of the annular base 2, in FIG. 4 is indicated by a dotted line, as well as two sets of finished brush seals 19, 20, spaced in directions 21, 22.
  • the process of manufacturing a brush seal begins with the assembly of a toroidal mandrel, on which the elastic material of the brush seal will subsequently be wound.
  • the toroidal mandrel 1 includes the following main elements in FIG. 1: an annular base 2 and two annular clips 5 and 6. On the base 2, lateral bevels 3 and 4 are made, radially offset from each other, and on the clips 5 and 6, their corresponding inclined sections 7 and 8. In addition, in the annular holders 5, 6 drill coaxial holes 9 and 10.
  • axial notches 12 are applied to the outer annular surfaces of the annular rings 5 and 6 and to the inner annular surface of the annular base 2, which allow the elastic material 13 to be evenly wound, including at a given angle to the axis of the toroidal mandrel.
  • the axial notches 12 do not allow the elastic material 13 to spontaneously move along the circumference, both during winding and in the further process of obtaining a brush seal.
  • the winding of the elastic material 13 on a toroidal mandrel 1 lead to the desired thickness.
  • the elastic material 13 is pressed by the annular cheeks 14 and 15 to the toroidal mandrel 1.
  • the inner portion of the elastic material 13 corresponding to the desired inner diameter of the brush seal is cut around the circumference along with the adjacent part of the base 2, and then this portion is removed.
  • the resulting brush seals 19, 20 have the same configuration and the angle of inclination of the elastic material 13.
  • the claimed technical solutions increase the quality of manufacture of brush seals due to the rigid fastening of the articulated elements of the toroidal mandrel, increase the productivity of production, the life of the brush seals, ensure the reliability of their design.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)
  • Gasket Seals (AREA)

Abstract

L'invention concerne le domaine des constructions mécaniques et notamment de la construction de moteurs. Le procédé de fabrication consiste en ce qui suit : on assemble un mandrin toroïdal à partir d'une base annulaire (2) et deux cages annulaires latérales (5, 6) possédant des bords latéraux biseautés et fixées entre elles au moyen d'éléments de fixation. Les bords latéraux biseautés (7, 8) sur la base annulaire sont réalisés de telle manière à ce qu'ils forment une partie saillante de la base annulaire. Après le bobinage d'une matière souple (13) et l'enlèvement des restes en suivant la périphérie et la surface interne annulaire du mandrin toroïdal on obtient deux ensembles identiques de garnitures de balais. L'invention permet d'améliorer la qualité de fabrication des garnitures de balais grâce à une fixation rigide des éléments à raccorder du mandrin toroïdal et au bobinage dirigé de la matière souple.
PCT/RU2008/000335 2007-10-17 2008-05-29 Procédé de fabrication d'une garniture de balai et procédé de mise en oeuvre correspondant WO2009051518A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2007138315/06A RU2350811C1 (ru) 2007-10-17 2007-10-17 Способ изготовления щеточного уплотнения и устройство для его осуществления
RU2007138315 2007-10-17

Publications (1)

Publication Number Publication Date
WO2009051518A1 true WO2009051518A1 (fr) 2009-04-23

Family

ID=40542916

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2008/000335 WO2009051518A1 (fr) 2007-10-17 2008-05-29 Procédé de fabrication d'une garniture de balai et procédé de mise en oeuvre correspondant

Country Status (2)

Country Link
RU (1) RU2350811C1 (fr)
WO (1) WO2009051518A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8794631B2 (en) * 2009-01-12 2014-08-05 General Electric Company Method of manufacturing of a compliant plate seal assembly
US8328198B2 (en) * 2010-10-06 2012-12-11 General Electric Company Brush seal
US20120251290A1 (en) * 2011-03-31 2012-10-04 General Electric Company Aspirating face seal, and a related method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4934759A (en) * 1988-04-05 1990-06-19 Rolls-Royce Plc Apparatus for and method of manufacturing brush seals
RU2133396C1 (ru) * 1996-08-26 1999-07-20 Самарский государственный аэрокосмический университет им.С.П.Королева Способ изготовления щеточного уплотнения
RU2210694C2 (ru) * 2001-10-01 2003-08-20 Федеральное государственное унитарное предприятие "Центральный институт авиационного моторостроения" им. П.И.Баранова Способ изготовления щеточного уплотнения и устройство для его осуществления

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4934759A (en) * 1988-04-05 1990-06-19 Rolls-Royce Plc Apparatus for and method of manufacturing brush seals
RU2133396C1 (ru) * 1996-08-26 1999-07-20 Самарский государственный аэрокосмический университет им.С.П.Королева Способ изготовления щеточного уплотнения
RU2210694C2 (ru) * 2001-10-01 2003-08-20 Федеральное государственное унитарное предприятие "Центральный институт авиационного моторостроения" им. П.И.Баранова Способ изготовления щеточного уплотнения и устройство для его осуществления

Also Published As

Publication number Publication date
RU2350811C1 (ru) 2009-03-27

Similar Documents

Publication Publication Date Title
US7743498B2 (en) Method of processing seals like leaf seals
EP0293140B1 (fr) Joints à balais
KR101369067B1 (ko) 터보 기계의 터빈 로터 주위에 링 섹터를 부착하는 장치
US20090072486A1 (en) Brush seal
US8282285B2 (en) Bearing support
EP0815995A3 (fr) Méthode de fabrication de structures cylindriques à canaux de refroidissement
US10208674B2 (en) Multi-axial brush seal
US8690159B2 (en) Spiral wound bound seal
EP2291338A2 (fr) Joints brosses en céramique
JP2008069968A (ja) 単一の弾性プレート部材を使用したシャフトシール
JPWO2008004590A1 (ja) ブラシシール装置
WO2009051518A1 (fr) Procédé de fabrication d'une garniture de balai et procédé de mise en oeuvre correspondant
ATE287309T1 (de) Stator-laufschaufel-baugruppe für eine turbine und verfahren zur herstellung dieser baugruppe
US20070187900A1 (en) Non-metallic brush seals
RU2210694C2 (ru) Способ изготовления щеточного уплотнения и устройство для его осуществления
CN102767399A (zh) 用于涡轮机的导流片以及制造方法
EP2961939A1 (fr) Ensemble pour sceller un interstice entre les composants d'un moteur à turbine
US1470507A (en) Method of making rotor elements for elastic-fluid turbines
CA2381359A1 (fr) Bague d'etancheite sous forme de brosse
JP2003176822A (ja) 軸受組立品およびその方法
JP2012210666A (ja) フランジ一体型波付管の製造方法、フランジ一体型波付管、および前記製造方法に用いられる波付管用の切断装置
JP2010529388A (ja) 軸受けアッセンブリ
RU2005107321A (ru) Способ изготовления компонента статора или ротора
JP4130688B2 (ja) 接続フランジの製造方法
RU2001126362A (ru) Способ изготовления щеточного уплотнения и устройство для его осуществления

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08779185

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08779185

Country of ref document: EP

Kind code of ref document: A1