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WO2015090573A1 - Agencement d'un élément de réception permettant de recevoir une bague d'étanchéité d'arbre - Google Patents

Agencement d'un élément de réception permettant de recevoir une bague d'étanchéité d'arbre Download PDF

Info

Publication number
WO2015090573A1
WO2015090573A1 PCT/EP2014/003385 EP2014003385W WO2015090573A1 WO 2015090573 A1 WO2015090573 A1 WO 2015090573A1 EP 2014003385 W EP2014003385 W EP 2014003385W WO 2015090573 A1 WO2015090573 A1 WO 2015090573A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
receiving element
centering
housing
arrangement
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.)
Ceased
Application number
PCT/EP2014/003385
Other languages
German (de)
English (en)
Inventor
Ulf MÜLLER
Robert Reichelt
Jürgen MEUSEL
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.)
Thyssenkrupp Dynamic Components Teccenter AG
Original Assignee
ThyssenKrupp Presta TecCenter 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 ThyssenKrupp Presta TecCenter AG filed Critical ThyssenKrupp Presta TecCenter AG
Publication of WO2015090573A1 publication Critical patent/WO2015090573A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

Definitions

  • the present invention relates to an arrangement of a receiving element for receiving a shaft seal on a housing and a method for arranging the receiving element, wherein in the housing a shaft is rotatably mounted in a shaft axis and wherein the shaft seal is sealingly seated on the shaft.
  • An arrangement of a receiving element for receiving a shaft sealing ring can be taken, for example, from EP 2 153 075 B1.
  • the receiving element serves to receive a shaft seal in order to arrange it on a housing, wherein in the housing a shaft is rotatably mounted in a shaft axis and wherein the shaft seal is sealingly seated on the shaft.
  • the shaft sealing ring is accommodated on the inside in the receiving element, and the receiving element is designed as an annular bush, which is formed in a receiving bore for centering the socket.
  • the centering of the receptacle must be designed concentrically to the shaft axis, with tolerances in the bearing of the shaft and other bearing tolerances of the receiving area for receiving the socket and the tolerance for receiving the shaft sealing ring in the socket itself can sum up. The accumulation of multiple tolerances can lead to a positional deviation of the shaft seal to the shaft axis, so that the shaft does not rotate centrally in the shaft seal. Early wear and possible leaks can be the result.
  • receiving elements in the form of flanges, which can be mounted on the front side of a housing.
  • the shaft sealing ring sits centrally in the flange, and via a further collar, a bore or for example an extension with an outer circumference of the flange can be centered to the shaft axis attached to the housing.
  • this in turn requires a concentric machining of a centering collar on the receiving element relative to the receiving seat of the shaft seal, which, if a minimized deviation
  • CONFIRMATION COPY the centering of the shaft seal to the shaft is required, must be prepared consuming.
  • the receiving geometry for receiving the receiving element on the housing must be made very accurately relative to the shaft bearing to avoid position errors relative to the shaft axis.
  • the object of the invention is the development of an arrangement of a receiving element for receiving a shaft sealing ring on a housing, wherein a minimal eccentric deviation of the shaft seal to the shaft axis of the shaft should be achieved.
  • the arrangement should be easy to manufacture and be assembled with little effort.
  • the invention includes the technical teaching that the receiving element has at least one centering surface over which the receiving element is centered on the shaft, so that concentrically arranged by the centering of the receiving element on the shaft of the shaft seal around the shaft axis.
  • the centering of the receiving element according to the invention on the shaft can be done in a simple manner concentric alignment of the shaft seal to the shaft, and it is ensured that the shaft seal is not arranged by tolerances that are present on the housing off-center to the shaft.
  • the inventive arrangement of the receiving element of the wear of a shaft seal can be minimized, and the service life of the shaft seal can be significantly extended. This is the case no centering surfaces to the shaft axis, paragraphs, grooves or the like necessary, since the receiving element is already aligned on the centering on the shaft itself relative to the housing, and the receiving element can be easily and without further centering attached to the housing, for example by means of screw elements ,
  • the shaft has an outer peripheral surface, wherein the receiving element with the at least one centering surface on the outer peripheral surface is centered.
  • the shaft may have a hollow region, for example, the shaft may be designed as a hollow shaft, and in the hollow region may be formed an inner peripheral surface, wherein the receiving element with the at least one centering surface on the inner peripheral surface is centered.
  • three or more radially aligned projections may be formed on the receiving element, on each of which centering surfaces are formed.
  • the centering surface may also be formed fully on the receiving element, for example as an inner contour of a passage or of a shoulder which is formed on the receiving element.
  • the advantage in the production of the receiving element results from the fact that the at least one centering surface, which may be formed on the radially aligned projections or which may be formed as vollumflindliche inner surface in a passage or a paragraph, together with a receiving seat for receiving the shaft seal on Receiving element can be produced.
  • the receiving seat for receiving the shaft sealing ring and the at least one centering surface can be machined in a mechanical clamping, for example in a grinding or in a turning operation. This results in high dimensional accuracy and a common centering between the receiving seat and the centering surfaces.
  • the centering surfaces can define a diameter which is formed corresponding to the diameter of the outer circumferential surface or the inner circumferential surface of the shaft with a preferably minimal radial clearance. If the centering surfaces are centered on the outer peripheral surface of the shaft, then the diameter defined by the centering surfaces may be slightly larger than the diameter of the outer peripheral surface of the shaft to form a minimum clearance dimension, and center the centering surfaces on the inner circumferential surface of the shaft, as defined by the centering surfaces Diameter be slightly smaller than the inner diameter of the inner peripheral surface of the shaft.
  • the clearance can be so small that a tight tolerances clearance arises, and rotates the shaft, while the receiving element is already arranged on the centering concentric to the shaft axis on the housing, so there is a substantially powerless surface contact between the shaft and the centering on the receiving element. If only locally limited centering surfaces distributed over the circumference are provided on the receiving element, the advantage is achieved that surface contact between the rotating shaft and the stationary receiving element is only occasionally produced. However, since the contact only leads to a surface contact, which is essentially only powerless, there is no appreciable wear due to the contact between the shaft and the centering surfaces.
  • the arrangement of the receiving element on the housing defined by the centering diameter may be greater than the diameter of the outer peripheral surface of the shaft, such that a Zentrierwhis stresses with a sleeve-shaped extension for centering the receiving element on the shaft between the centering and the shaft can be used. If the receiving element is centered on the housing relative to the shaft, then the centering auxiliary body can be removed again, and contact of the shaft with the centering surfaces is avoided even with an example slight bending of the shaft.
  • centering surface is formed by a rotationally symmetrical inner circumference through a passage or a shoulder on the receiving element, the further features and associated advantages described above in connection with a plurality of centering surfaces distributed over the circumference are made possible and achieved in the same way.
  • the receiving element For permanent attachment of the receiving element on the housing screw elements can be provided with which after centering of the receiving element about the shaft axis, the receiving element can be permanently connected to the housing.
  • the invention further relates to a method for arranging a receiving element for receiving a shaft sealing ring on a housing, wherein in the housing a shaft is rotatably mounted in a shaft axis and wherein the shaft seal is sealingly placed on the shaft, wherein the method at least the step of the arrangement of the receiving element on the housing with centering of the receiving element with at least one centering surface on the shaft and has the step of attaching the receiving element is provided on the housing.
  • the centering of the receiving element on the shaft with at least the other following steps: arrangement of the receiving element on the housing, providing a Zentrierwhis stresses with a sleeve-shaped extension, arranging the sleeve-shaped extension between the at least one centering surface and the shaft, attaching the receiving element to the housing, in particular by means of screw elements and removing the centering auxiliary body of the arrangement.
  • the invention is directed to a receiving element for receiving a shaft sealing ring on a housing, wherein in the housing a shaft is rotatably mounted in a shaft axis and wherein the shaft seal is sealingly placed in the arrangement of the receiving element on the housing on the shaft, and it is on the receiving element at least one centering surface is provided, via which the receiving element can be centered on the shaft, so that by the centering of the receiving element on the shaft of the shaft sealing ring is arranged concentrically around the shaft axis.
  • FIGS. shows: first embodiment of an arrangement of a
  • FIG. 2 is a cross-sectional view of the first embodiment of FIG.
  • FIG. 3 shows a perspective view of the receiving element according to the first embodiment
  • FIG. 5 is a cross-sectional view of the second embodiment of FIG.
  • FIG. 6 shows a perspective view of the receiving element according to the second exemplary embodiment
  • Figure 7 is a cross-sectional view of an arrangement of a
  • FIG. 7a shows a detailed view Y from FIG. 7,
  • FIG. 8 shows a sectional view of a further exemplary embodiment, wherein the centering of the receiving element takes place via a centering auxiliary body, which is shown spaced apart from the housing to arrange the receiving element,
  • FIG. 9 shows the embodiment of Figure 8, wherein the
  • Centering auxiliary body is applied for centering the receiving element
  • FIG 10 shows the embodiment of Figure 8, wherein the
  • Receiving element is attached to the housing with screw elements and wherein the centering auxiliary body is removed again in contrast to Figure 9.
  • FIG. 1 shows a first exemplary embodiment of an arrangement 1 of a receiving element 10 on a housing 12, in which a shaft 13 is rotatably mounted in a shaft axis 14 via a bearing unit 25.
  • the receiving element 10 is formed as a flange and is fastened via screw elements 22 on an outer side of the housing 12.
  • a shaft seal 11 is received in a receiving seat, which runs on the outer peripheral surface 16 of the shaft 13, and seals the region of the bearing unit 25.
  • FIG. 2 shows, in addition to FIG. 1, a cross section through the arrangement 1 along the section line BB, which runs through the receiving element 10, as shown in FIG.
  • three centering surfaces 15 are shown, which are formed on projections 26 which point radially inwards in the direction of the shaft 13.
  • the projections 26 with the front-side centering surfaces 15 allow concentric about the shaft axis 14 Arrangement of the receiving element 10 and thus of the shaft sealing ring (see Figure 1) on the shaft 13.
  • the centering surfaces 15 define a diameter which is formed corresponding to the diameter of the outer peripheral surface 16 of the shaft 13, so that a clearance fit with a minimal clearance.
  • FIG. 3 shows, in addition to FIG. 2, a perspective view of the receiving element 10, in which the centering surfaces are shown on the projections 26 on the front side.
  • the projections 26 are present in triplicate and formed in a 120 ° - arrangement to each other, so that the shaft 13 can be centered on the centering surfaces 15 to the shaft axis 14.
  • four or more protrusions 26 may be provided in a preferred angular equal to each other with respective centering surfaces 15.
  • the shaft 13 extends, as shown in Figure 1, with a portion in a passage 27 in the receiving element 10 into it, and recorded in the receiving element 10 shaft seal 1 1 seals the region of the bearing unit 25 via the outer peripheral surface 16 of the shaft 13 to the passage 27 in Receiving element 10 down from.
  • Figure 4 shows another embodiment of an arrangement 1 in a modification of the embodiment of Figure 1 to Figure 3 and the receiving element 10 has centering surfaces 15 which center against a inner peripheral surface 19 of the shaft 13, the receiving element 10 to the shaft axis 14.
  • FIG. 5 shows the exemplary embodiment according to FIG. 4 in a sectional view along the section line BB which runs through the receiving element 10.
  • the centering surfaces 15 on the receiving element 10 in cross section visible
  • Figure 6 shows the receiving element 10 with the radially outwardly facing centering surfaces 15 in perspective.
  • the receiving element 10 is configured in this embodiment so that the centering surfaces 15 along the shaft axis 14 are approximately at the same height, ie arranged approximately in the same plane as the shaft seal 11, so that the embodiment allows a flat design of the receiving element 10.
  • the shaft seal 1 1 can run approximately at the same height along the shaft axis 14 on the outer peripheral surface 16 of the shaft 13.
  • Figure 7 shows a modification of the embodiment in Figure 1, an arrangement 1 of a receiving element 10 on the housing 12, wherein the receiving element 10 as shown in Figure 1 has projections 26, and end of the projections 26 centering surfaces 15 are formed, wherein only one projection 26 in Upper part of the sectional view is shown.
  • the projections 26 are arranged adjacent to the arrangement of the shaft sealing ring 11, and the centering surfaces 15 against a portion of an outer peripheral surface 17 formed by a shoulder with a slightly smaller diameter end against the shaft 13 at.
  • the outer peripheral surface 17 is formed on a diameter of the shaft 13 which is smaller than the diameter of the outer peripheral surface 16, against which the shaft sealing ring 1 1 starts.
  • Figure 7a shows the outer peripheral surfaces 16 and 17 in contact with the shaft seal 1 1 and with the centering surface 15 at the end on the projection 26 on the receiving element 10 in an enlarged view.
  • Figures 8, 9 and 10 show in several steps, the arrangement of a receiving element 10 on the housing 12, wherein the receiving element 10 is aligned about a centering auxiliary body 20 concentrically about the shaft axis 14 on the shaft 13.
  • Figure 8 shows first the non-centered arrangement of the receiving element 10 on the housing 12 (missing centering not shown), and in the receiving element 10 is already a shaft seal 11 is inserted on the outer peripheral surface 16 of the shaft 13 is seated.
  • a centering auxiliary body 20 Spaced to the arrangement 1 of the receiving element 10 on the housing 12, a centering auxiliary body 20 is shown with a sleeve-shaped extension 21, furthermore, screw elements 22 are shown flying, with which the receiving element 10 can be screwed to the housing 12.
  • FIG. 9 shows a first step for centering the receiving element 10 on the shaft 13, in that the centering auxiliary body 20 is fed onto the arrangement 1 along the shaft axis 14.
  • the sleeve-shaped extension 21 is guided in the circumferential radial gap between the centering surface 15 on the receiving element 10 and the outer peripheral surface 16 of the shaft 13, which have different diameters, as Figure 8 shows.
  • a centering of the receiving element 10 is achieved to the shaft axis 14, wherein still during the arrangement of the sleeve-shaped extension 21 between the centering surface 15 and the outer peripheral surface 16, the receiving element 10 is screwed to the screw 22 on the housing 12.
  • the centering auxiliary body 20 are solved with the sleeve-shaped extension 21 of the assembly 1, and by screwing the receiving element 10 on the housing 12 with the screw 22 remains the receiving element 10 in concentric arrangement with the shaft axis 14.
  • Das Embodiment shows in an advantageous manner that the centering of the receiving element 10 on the shaft 13 can be made possible without direct contact of the centering surface 15 with the outer peripheral surface 16 of the shaft 13.

Landscapes

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

Abstract

La présente invention concerne un agencement (1) d'un élément de réception (10) permettant de recevoir une bague d'étanchéité (11) d'arbre sur un carter (12), un arbre (13) étant monté dans le carter (12) de manière à pouvoir tourner dans un axe (14) d'arbre et la bague d'étanchéité (11) d'arbre reposant de manière étanche sur l'arbre (13). Selon l'invention, l'élément de réception (10) comprend au moins une surface de centrage (15) permettant de centrer l'élément de réception (10) sur l'arbre (13), si bien que ce centrage de l'élément de réception (10) permet à la bague d'étanchéité (11) d'arbre d'être disposée sur l'arbre (13) de la bague d'étanchéité (11) d'arbre de manière concentrique autour de l'axe (14) d'arbre.
PCT/EP2014/003385 2013-12-19 2014-12-16 Agencement d'un élément de réception permettant de recevoir une bague d'étanchéité d'arbre Ceased WO2015090573A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013114534.5 2013-12-19
DE102013114534.5A DE102013114534B4 (de) 2013-12-19 2013-12-19 Anordnung eines Aufnahmeelementes zur Aufnahme eines Wellendichtringes

Publications (1)

Publication Number Publication Date
WO2015090573A1 true WO2015090573A1 (fr) 2015-06-25

Family

ID=52278552

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/003385 Ceased WO2015090573A1 (fr) 2013-12-19 2014-12-16 Agencement d'un élément de réception permettant de recevoir une bague d'étanchéité d'arbre

Country Status (2)

Country Link
DE (1) DE102013114534B4 (fr)
WO (1) WO2015090573A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215786A (en) * 1988-03-21 1989-09-27 Chicago Rawhide Mfg Co Sealed machine assemblies
FR2667918A1 (fr) * 1990-10-10 1992-04-17 Peugeot Dispositif d'etancheite pour arbre tournant.
EP0908650A1 (fr) * 1997-10-09 1999-04-14 Firma Carl Freudenberg Bague d'étanchéité
EP2153075B1 (fr) 2007-05-22 2012-02-08 ixetic Bad Homburg GmbH Palier

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224995C1 (de) 1992-07-29 1993-12-16 Goetze Ag Transport- und Montagehülse
DE19810113C2 (de) 1998-03-09 2000-07-27 Freudenberg Carl Fa Dichtungsbausatz

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2215786A (en) * 1988-03-21 1989-09-27 Chicago Rawhide Mfg Co Sealed machine assemblies
FR2667918A1 (fr) * 1990-10-10 1992-04-17 Peugeot Dispositif d'etancheite pour arbre tournant.
EP0908650A1 (fr) * 1997-10-09 1999-04-14 Firma Carl Freudenberg Bague d'étanchéité
EP2153075B1 (fr) 2007-05-22 2012-02-08 ixetic Bad Homburg GmbH Palier

Also Published As

Publication number Publication date
DE102013114534A1 (de) 2015-06-25
DE102013114534B4 (de) 2023-05-17

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