WO2016020058A1 - Joint d'étanchéité rectangulaire servant à rendre étanche un passage, destiné en particulier à des fluides - Google Patents

Joint d'étanchéité rectangulaire servant à rendre étanche un passage, destiné en particulier à des fluides Download PDF

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Publication number
WO2016020058A1
WO2016020058A1 PCT/EP2015/001610 EP2015001610W WO2016020058A1 WO 2016020058 A1 WO2016020058 A1 WO 2016020058A1 EP 2015001610 W EP2015001610 W EP 2015001610W WO 2016020058 A1 WO2016020058 A1 WO 2016020058A1
Authority
WO
WIPO (PCT)
Prior art keywords
rectangular seal
sealing
rectangular
shaft
seal
Prior art date
Application number
PCT/EP2015/001610
Other languages
German (de)
English (en)
Inventor
Andreas Laage
Michail MICHAILIDIS
Original Assignee
Konzelmann Gmbh
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
Priority claimed from DE202014006270.6U external-priority patent/DE202014006270U1/de
Priority claimed from DE102014011534.8A external-priority patent/DE102014011534A1/de
Application filed by Konzelmann Gmbh filed Critical Konzelmann Gmbh
Priority to EP15757128.2A priority Critical patent/EP3201499A1/fr
Publication of WO2016020058A1 publication Critical patent/WO2016020058A1/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
    • F16J15/3268—Mounting of sealing rings
    • F16J15/3272—Mounting of sealing rings the rings having a break or opening, e.g. to enable mounting on a shaft otherwise than from a shaft end

Definitions

  • the invention relates to a rectangular seal for sealing a passage, in particular for fluids, having a sealing body, an outer circumferential surface, two flank surfaces and an inner circumferential surface.
  • Such a rectangular seal is well known and is used in a sealing arrangement for sealing a passage, in particular a rotary feedthrough for fluids between two components, in particular a shaft and a housing.
  • the shaft has at least one groove for receiving
  • the shaft is inserted together with the rectangular seal received in its groove in a rotary guide of the housing or the housing is pushed onto the already pre-assembled shaft. There is thus a relative movement between the shaft and the housing.
  • the lateral surface of the rectangular seal inserted in the groove of the shaft abuts the inner wall of the passage of the housing and thus seals the sealing gap located between the shaft and the inner surface of the rotary union.
  • the rectangular seal must be beyond the surface of the shaft, so that the sealing gap located between the shaft and the housing can be sealed by the sealing contour and / or the sealant of the rectangular seal.
  • Rectangular seal arranged in the inner wall of the implementation of the housing and the shaft must be pushed through the inner diameter.
  • the problems described above occur here when inserting the shaft into the interior of the rectangular seal in a corresponding manner.
  • EP 0 231 673 B1 and from the publication SEALS, 4th edition, machine design, June 1969 and from the Engineer's Handbook of Piston Rings, Seal Rings, Mechanical Shaft Seals, published by Koppers Company, Inc. , 1975, rectangular seals are known which have a sealing body whose Ringend Suitee are separated by a shock.
  • the rectangular seal has at least one provided in a flank surface designed by this in the associated lateral surface over-loaded and at least along a portion of the circumference of the sealing body encircling insertion element.
  • the inventive measures a rectangular seal is provided in an advantageous manner, in which the risk of damage to the rectangular seal when mounted in a seal assembly if not eliminated, then at least significantly reduced.
  • the insertion element provided according to the invention has the effect that upon insertion of the rectangular seal according to the invention into a passage, its edge region, which in this process comes into contact with the abovementioned insertion element of the flank surface, this edge region slides onto the sealing body of the rectangular seal, so that the risk of damage to the sealing body and Thus, the sealing contour and / or the sealant of the rectangular seal is at least reduced in this area.
  • Another advantage of this measure is that As a result, the assembly of the rectangular seal according to the invention is facilitated, without affecting their sealing function by the inventive measures to facilitate assembly significantly.
  • the rectangular seal according to the invention in each case has an insertion element extending over at least part of the circumference on both flank surfaces. Such a measure has the advantage that in this way during assembly of the rectangular seal according to the invention no longer has to be paid to their orientation in the groove receiving them.
  • a further advantageous embodiment of the invention provides that at least one insertion element is designed as a Ein Siliconfase. Such a measure has the advantage that the insertion element is particularly simple.
  • a further advantageous development of the invention provides that the rectangular seal according to the invention has a hydrostatic or hydrodynamic relief structure on its lateral surface. Such a measure has the advantage that in this way the sealing body of the invention
  • FIG. 1 shows an illustration of a first exemplary embodiment of a rectangular seal
  • FIG. 2 shows a plan view of the first exemplary embodiment of FIG. 1
  • FIG. 3 is a sectional view of the first embodiment
  • FIG. 5 shows a schematic representation of a sealing arrangement which uses the rectangular seal according to the first exemplary embodiment
  • FIG. 6 shows a representation of a second embodiment of a rectangular seal
  • Figure 7 is a schematic representation of a rectangular seal according to the second embodiment using the seal assembly
  • Figure 8 is an illustration of a third embodiment of a rectangular seal.
  • FIGS. 1 to 5 show a first exemplary embodiment of a rectangular seal, generally designated 1, which has a sealing body 2 with an outer circumferential surface 3, two flank surfaces 4a and 4b, and an inner circumferential surface 7.
  • the rectangular seal 1 has a lock 5, which is designed here as a hook lock 10. But it is also possible to use a different type of lock instead of the hook lock 10 shown here. The skilled person will be apparent from the following description that it does not depend on the specific type of training of the castle. It is also conceivable that the sealing body 2 of the rectangular seal 1 is formed closed. In the described embodiment, it is also provided that on the inner circumferential surface 7 of the sealing body 2 elevations 6 are provided, which prevents too large sagging of the inserted into a groove of a seal assembly 20 (see Figure 5) rectangular seal 1. Such
  • Rectangular seal is known and therefore need not be described in more detail. It is essential that - as best seen in FIGS. 3 and 4 - an insertion element 5a or 5b is arranged on at least one and in the first embodiment shown here on both flank surfaces 4a and 4b. However, it may also be sufficient for certain applications that one or both insertion elements 5a and 5b each only along a portion of the circumference of the sealing body 2 run. These insertion elements 5a and 5b serve - as described below - during insertion of the rectangular seal 1 in a passage 21 of a seal assembly 20, the edge region R of this passage 21 limiting housing G (see Figure 5) of this implementation on the respective insertion bevel 5a or 5b can slip on.
  • both or at least one insertion element 5a and / or 5b is such that the insertion element 5a and / or 5b begins at least at the point at which the rectangular seal 1 emerges from the groove N of a shaft W (see FIG. 5), and that one or both insertion elements 5a, 5b preferably end in the transition region between the flank surface 4a or 4b and the outer lateral surface 3.
  • the insertion elements 5a and 5b are formed in the embodiment shown here as Ein Industriesfasen 5a 'and 5b'. Such a measure has the advantage of a particularly simple design of the insertion elements 5a and 5b. But it is not absolutely necessary that the insertion elements 5a and 5b on their entire area at an angle. Rather, this area can also be curved or it is also possible for the last area of the insertion elements 5a and 5b, ie the area lying just in front of the outer lateral surface 3, to be radially aligned, ie that a kind of "step" is realized ,
  • FIG. 5 shows a cross section through such a sealing arrangement 20, which is designed to be rotationally symmetrical with respect to an axis A.
  • a housing G has the rotary feedthrough 21, in which a shaft W is inserted.
  • a sealing gap D is present, which is to be sealed by the rectangular seal 1.
  • Rectangular seal 1 inserted into the groove N of the shaft W. This can be done by widening the rectangular seal 1, then pushing it onto the shaft W and finally moving it further up to the groove N in which it is to be placed and inserting it into the groove N. After the rectangular seal 1 has been introduced into the groove N of the shaft W, the shaft W is inserted into the feedthrough 21, which is designed as a rotary feedthrough in this case.
  • the outer diameter of the shaft W is smaller by the dimension of the sealing gap D than the diameter of the passage 21 defined by the inner wall G 'of the housing G.
  • the groove N of the shaft W used rectangular seal 1 at least by the dimension of the sealing gap D on the outer surface before.
  • the rectangular seal 1 is formed such that its outer surface defined by the outer surface 2 diameter is greater than the sum of the outer diameter of the shaft W and the dimension of the sealing gap D, so that after insertion of the rectangular seal 1 in the seal assembly 20 the Jacket surface 3 of the sealing body 2 against the inner surface G 'of the housing G is pressed.
  • Rectangular seal 1 has, in an advantageous manner, the insertion element 5a formed here as an introduction chamfer 5a ', which runs inclined from the lateral surface 3 to the first flank surface 4a.
  • the edge region R of the housing G then slides on insertion of the shaft W in the insertion direction V on the insertion element 5a.
  • the risk of damage to the sealing body 2 if not eliminated, at least reduced.
  • the described embodiment of the rectangular seal 1 with insertion elements 5a and 5b facilitates the insertion of the rectangular seal 1 into the sealing arrangement 20, especially when the edge region R of the housing G, when the shaft W is moved onto the insertion elements 5a slides on, not - as shown in Figure 5 - is performed chamfered.
  • FIGS. 6 and 7 show a second exemplary embodiment of a rectangular seal 1, wherein the basic structure of the rectangular seal 1 of the second exemplary embodiment corresponds to that of the first exemplary embodiment, thus that the same or corresponding components provided with the same reference numerals and will not be described in detail.
  • the essential difference between the first and the second embodiment is that in the latter the two flank surfaces 4a and 4b are designed in stages, so that due to these stages 8a and 8b of the flank surfaces 4a and 4b measured in the axial direction width of the lateral surface 3 is less than the width of the base surface 7 of the sealing body 2 is.
  • a hydrostatic relief structure is formed.
  • One of the seal assembly 20 of the first embodiment corresponding, the rectangular seal 1 of the second embodiment using seal assembly 20 is shown in Figure 7 again. The explanations given for Figure 5 apply here accordingly.
  • lateral surface 3 of the rectangular seal 1 of the first and the second embodiment may optionally be provided further hydrodynamic or hydrostatic relief structures.
  • FIG. 8 shows a third embodiment of a rectangular seal 1 is shown, wherein corresponding components provided with the same reference numerals and will not be described in detail.
  • the exemplary embodiment shown in the above-mentioned figure represents an internal tensioning rectangular seal 1 which in the case shown here exemplarily has a double T-lock 5 "as the lock 5.
  • Such a rectangular seal 1 is formed in a groove in the inner wall G 'defining the passage 21. Accordingly, the shaft W is pushed through the inner space bounded by the inner lateral surface 7 of the main body 2 of the rectangular seal 1.
  • the outer lateral surface 3 is in the assembled state of the rectangular seal 1 in the groove of the inner wall G 'of the housing G. received and therefore has the elevations 6 in the third embodiment, preferably.
  • the rectangular seal 1 has insertion elements provided in the transition region between the flank surfaces 4a and 4b and the inner circumferential surface 7 25a and 25b, which correspond to the insertion elements 5a and 5b of the first two embodiments.
  • the edge region of the shaft which is present on the end side, then exits onto one of the here also preferably as lead-in chamfers 25a' and 25b ', depending on the orientation of the rectangular seal 1 Insertion elements 25a and 25b. The risk of damaging the sealing contour and / or the sealant of the sealing body 2 is thus counteracted again.
  • the rectangular seal 1 of the third embodiment on both flank surfaces 4a and 4b each have an insertion element 25a and 25b, so that here also on the orientation of the rectangular seal 1 during insertion does not need to be taken.
  • the radial extent of the insertion elements is in turn such that they preferably begin in the radial direction at the point where the sealing body 2 of the rectangular seal 1 protrudes beyond the edge of the groove provided in the inner wall G ', and at least one insertion element 25a , 25b extends to the inner circumferential surface 7.
  • a rectangular seal 1 it is of course also possible for a rectangular seal 1 to have at least one insertion element 5a and / or 5b assigned to the outer lateral surface 3 and at least one insertion element 25a and / or 25b assigned to the inner lateral surface 7.
  • the thus configured seal is shown in Figures 1 to 5. It is therefore suitable in an advantageous manner both for receiving in a groove N of the shaft W and in a groove of the inner wall G 'of the housing G.
  • a rectangular seal 1 is formed by the measures described, which is characterized in that at one or both flank surfaces 4a and / or 4b at least one part of the circumference of the sealing body 2, preferably along the entire circumference of the same , extending insertion elements 5a and / or 5b or 25a and / or 25b are provided.
  • This measure has the advantage that, as a result, the risk that during the installation of the rectangular seal 1 in the passage 21 of the seal assembly 20, the sealing body 2 is damaged, at least reduced. It is preferably provided that the insertion elements 5a, 5b or 25a and / or 25b are provided on both flank regions 4a and 4b.
  • Such a measure has the advantage that, as a result, when inserting the
  • Rectangular seal 1 must be respected.
  • the rectangular seal 1 serves to seal the sealing gap D between a shaft W, that is to say a rotating component, and a housing G, ie a stationary component. This is not mandatory.
  • the measures described are equally suitable for a rectangular seal for use in a static seal assembly 20, which serves to seal a passage of a fluid or a gas.

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

Abstract

L'invention concerne un joint d'étanchéité rectangulaire servant à rendre étanche un passage, en particulier destiné à un fluide ou à un gaz, lequel joint d'étanchéité comporte un corps étanche (2), une surface enveloppante extérieure (3), deux surfaces de flanc (4a, 4b) et une surface enveloppante intérieure (7). Selon l'invention, le joint d'étanchéité rectangulaire (1) comporte au moins un élément d'introduction (5a ; 5b ; 25a ; 25b), qui est prévu dans une surface de flanc (4a ; 4b), qui se confond, en partant de celle-ci, avec la surface enveloppante (3 ; 7) associée, et qui s'étend au moins le long d'une partie de la périphérie du corps étanche (2).
PCT/EP2015/001610 2014-08-08 2015-08-05 Joint d'étanchéité rectangulaire servant à rendre étanche un passage, destiné en particulier à des fluides WO2016020058A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15757128.2A EP3201499A1 (fr) 2014-08-08 2015-08-05 Joint d'étanchéité rectangulaire servant à rendre étanche un passage, destiné en particulier à des fluides

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE202014006270.6 2014-08-08
DE202014006270.6U DE202014006270U1 (de) 2014-08-08 2014-08-08 Rechteckdichtung zur Abdichtung einer Durchführung, insbesondere für Fluide
DE102014011534.8 2014-08-08
DE102014011534.8A DE102014011534A1 (de) 2014-08-08 2014-08-08 Rechteckdichtung zur Abdichtung einer Durchführung, insbesonder für Fluide

Publications (1)

Publication Number Publication Date
WO2016020058A1 true WO2016020058A1 (fr) 2016-02-11

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Application Number Title Priority Date Filing Date
PCT/EP2015/001610 WO2016020058A1 (fr) 2014-08-08 2015-08-05 Joint d'étanchéité rectangulaire servant à rendre étanche un passage, destiné en particulier à des fluides

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Country Link
EP (1) EP3201499A1 (fr)
WO (1) WO2016020058A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019243123A1 (fr) * 2018-06-19 2019-12-26 Konzelmann Gmbh Bague d'étanchéité à activité hydrodynamique et joint rotatif pourvu d'une telle bague d'étanchéité
US20220145993A1 (en) * 2019-03-19 2022-05-12 Konzelmann Gmbh Internally Clamping Rectangular Sealing Ring
US20230272858A1 (en) * 2020-06-09 2023-08-31 Nok Corporation Sealing structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359230A (en) * 1978-02-16 1982-11-16 Associated Engineering Italy S.P.A. Piston ring with wear resistant coating
EP2381144A1 (fr) * 2009-01-20 2011-10-26 NOK Corporation Bague d'étanchéité
EP2557337A1 (fr) * 2011-08-09 2013-02-13 MTU Aero Engines GmbH Elément de construction

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH501858A (de) * 1969-07-14 1971-01-15 Bbc Brown Boveri & Cie Schwimmringdichtung mit Druckentlastung der Dichtfläche
US5738358A (en) * 1996-01-02 1998-04-14 Kalsi Engineering, Inc. Extrusion resistant hydrodynamically lubricated multiple modulus rotary shaft seal
DE19611673A1 (de) * 1996-03-25 1997-10-02 Orenstein & Koppel Ag Kolbenstangendichtung
JP5108529B2 (ja) * 2004-12-24 2012-12-26 シェフラー テクノロジーズ アクチエンゲゼルシャフト ウント コンパニー コマンディートゲゼルシャフト トルクコンバータロックアップクラッチのためのシール

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359230A (en) * 1978-02-16 1982-11-16 Associated Engineering Italy S.P.A. Piston ring with wear resistant coating
EP2381144A1 (fr) * 2009-01-20 2011-10-26 NOK Corporation Bague d'étanchéité
EP2557337A1 (fr) * 2011-08-09 2013-02-13 MTU Aero Engines GmbH Elément de construction

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3201499A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019243123A1 (fr) * 2018-06-19 2019-12-26 Konzelmann Gmbh Bague d'étanchéité à activité hydrodynamique et joint rotatif pourvu d'une telle bague d'étanchéité
US20220145993A1 (en) * 2019-03-19 2022-05-12 Konzelmann Gmbh Internally Clamping Rectangular Sealing Ring
US20230272858A1 (en) * 2020-06-09 2023-08-31 Nok Corporation Sealing structure

Also Published As

Publication number Publication date
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