DE4037949A1 - Device for transferring pressurised medium from fixed housing to rotary shaft - has dimensionally elastic sealing elements adjoining flanks of rotor grooves - Google Patents
Device for transferring pressurised medium from fixed housing to rotary shaft - has dimensionally elastic sealing elements adjoining flanks of rotor groovesInfo
- Publication number
- DE4037949A1 DE4037949A1 DE19904037949 DE4037949A DE4037949A1 DE 4037949 A1 DE4037949 A1 DE 4037949A1 DE 19904037949 DE19904037949 DE 19904037949 DE 4037949 A DE4037949 A DE 4037949A DE 4037949 A1 DE4037949 A1 DE 4037949A1
- Authority
- DE
- Germany
- Prior art keywords
- rotor
- housing
- sealing elements
- pressure
- transferring
- 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
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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
- F16L39/04—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies allowing adjustment or movement
-
- 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
- F16J15/44—Free-space packings
- F16J15/441—Free-space packings with floating ring
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/087—Joints with radial fluid passages
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
Description
Die Erfindung betrifft eine Einrichtung zur Überleitung von Druckmedien von einem feststehenden Gehäuse in eine rotierende Welle oder umgekehrt.The invention relates to a device for transferring Print media from a fixed housing to a rotating one Wave or vice versa.
Im Stand der Technik wird auf eine Reihe von Lösungen verwiesen, die sich mit dieser Problematik beschäftigen. Für Dichtungsaufgaben stehen hierfür herkömmliche Dichtelemente, Rundringe, Wellendichtringe, Dichtpackungen, Lippenringe mit oder ohne Stützringe zur Verfügung. Die aufgeführten Elemente unterliegen Verschleißerscheinungen, die bei erhöhten Ansprüchen (Druck, Drehzahl, Schwingungen) die Standzeiten wesentlich herabsenken und die Leckraten des Mediums erhöhen.The prior art refers to a number of solutions who deal with this problem. For Sealing tasks are conventional sealing elements, Round rings, shaft seals, sealing packs, lip rings with or without support rings. The listed items are subject to signs of wear and tear when there are increased demands (Pressure, speed, vibrations) significantly reduce the service life and increase the leak rates of the medium.
Durch die Erfindung sind sehr hohe Standzeiten bei extremen Belastungen zu gewährleisten. Dies betrifft unter anderem, hohe Drücke (<30 MPa), hohe Drehzahlen und auftretende Unwuchten infolge unvermeidlicher Fertigungstoleranzen.The invention has a very long service life with extreme To ensure loads. Among other things, high pressures (<30 MPa), high speeds and imbalances due to inevitable manufacturing tolerances.
Diese Forderungen werden durch die Erfindung dadurch realisiert, daß im Gegensatz zu den Patenten DE 30 31 805 und DE 38 06 931, der Rotor (2) direkt, ohne zusätzliche Zwischenelemente mit eingebauten Dichtelementen (6) mit definiertem Spiel (a) zwischen den Lagern (4 und 5) im Gehäuse (1) fixiert ist (Fig. 1). Die ausgeführte Lagerung gewährleistet unabhängig von den Dichtelementen (6) eine exakte Justierung sowie die problemlose Aufnahme axialer und radialer Kräfte. Im Gehäuse (1) sind entsprechend der Anschlüsse, Drucküberleitkanäle (3) eingebracht, welche im zusammengebauten Zustand der Einrichtung in bekannter Weise mit den Ringnuten (8) des Rotors (2) zusammentreffen. Die im Rotor (2) eingearbeiteten Ringnuten (8) stehen mit Längsbohrungen des Rotors in Verbindung.These requirements are met by the invention in that, in contrast to the patents DE 30 31 805 and DE 38 06 931, the rotor ( 2 ) directly, without additional intermediate elements with built-in sealing elements ( 6 ) with defined play (a) between the bearings ( 4 and 5 ) is fixed in the housing ( 1 ) ( Fig. 1). The implemented storage guarantees an exact adjustment as well as the problem-free absorption of axial and radial forces independent of the sealing elements ( 6 ). Corresponding to the connections, pressure transfer channels ( 3 ) are introduced in the housing ( 1 ), which meet in the assembled state of the device in a known manner with the ring grooves ( 8 ) of the rotor ( 2 ). The ring grooves ( 8 ) incorporated in the rotor ( 2 ) are connected to the longitudinal bores of the rotor.
Gemäß Anspruch 1 wird die Erfindung dadurch bewirkt, daß die Dichtelemente (6) einerseits durch ihre Vorspannung (F1) sowie durch den anstehenden Mediendruck des Überleitmediums (F2) gegen das feststehende Gehäuse (1) und andererseits durch den gleichen Mediendruck (F2) mit ihrer Flanke an die seitliche Kante der Ringnut (8) gedrückt werden (Fig. 3).According to claim 1, the invention is achieved in that the sealing elements ( 6 ) on the one hand by their pretension (F 1 ) and by the applied media pressure of the transfer medium (F 2 ) against the stationary housing ( 1 ) and on the other hand by the same media pressure (F 2 ) are pressed with their flank to the side edge of the annular groove ( 8 ) ( Fig. 3).
Hieraus folgt, daß die Abdichtwirkung zwischen Dichtelement (6) und Rotor (2) ohne Mitnahme am Rotor (2) sich vollzieht, da die radiale Kraftkomponente immer größer ist als die axial gerichtete Kraft. Eine Relativbewegung zwischen Rotor (2) und Dichtelement (6) kann nur im Flankenbereich der Ringnut (8) erfolgen.It follows from this that the sealing effect between the sealing element ( 6 ) and the rotor ( 2 ) takes place without entrainment on the rotor ( 2 ), since the radial force component is always greater than the axially directed force. A relative movement between the rotor ( 2 ) and the sealing element ( 6 ) can only take place in the flank area of the annular groove ( 8 ).
Diese technische Lösung ist sowohl in bezug auf den Verschleiß der Dichtelemente (6) als auch hinsichtlich auftretender Reibverluste sehr günstig. This technical solution is very favorable both with regard to the wear of the sealing elements ( 6 ) and with regard to friction losses.
Durch auftretende Unwuchten (resultierend aus Toleranzen der Fertigung) treten bei herkömmlichen Lösungsansätzen erhebliche Schwierigkeiten auf, den Verschleiß gering zu halten und die Abdichtung sicher zu gestalten.Due to imbalance (resulting from tolerances of the Manufacturing) occur significantly with conventional solutions Difficulties in keeping wear and tear low To make sealing safe.
Durch die aufgeführte Erfindung können Unwuchten dadurch ausgeglichen werden, daß die Dichtelemente (6) bis zum Formschluß des definierten Spaltes (s) zum einen, und durch freie Bewegung innerhalb der Ringnut (8) zum anderen, diese ausgleichen können (Fig. 4).The listed invention can compensate for imbalances in that the sealing elements ( 6 ) on the one hand and the free movement within the annular groove ( 8 ) on the other hand, can compensate for this until the positive fit of the defined gap (s) ( FIG. 4).
Die beschriebenen Wirkungen bezüglich der Dichtung werden weiterhin erhöht, in dem vor den Dichtelementen (6) im Rotor (2) zusätzlich spezielle Rillen eingearbeitet sind.The effects described with regard to the seal are further increased by additionally incorporating special grooves in front of the sealing elements ( 6 ) in the rotor ( 2 ).
Durch diese Rillen wird in Druckausbreitungsrichtung eine Querschnittsvergrößerung (9) des Spaltes (a) zwischen Gehäuse (1) und Rotor (2) bewirkt, infolge dessen ein zusätzliches Druckpolster gegenüber dem Gehäuse (1) aufgebaut wird. Die aufzubauenden Druckpolster werden durch die Form der Rillen bestimmt.These grooves cause an increase in cross-section ( 9 ) of the gap (a) between the housing ( 1 ) and the rotor ( 2 ) in the direction of pressure propagation, as a result of which an additional pressure cushion is built up relative to the housing ( 1 ). The pressure pads to be built are determined by the shape of the grooves.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904037949 DE4037949A1 (en) | 1990-11-29 | 1990-11-29 | Device for transferring pressurised medium from fixed housing to rotary shaft - has dimensionally elastic sealing elements adjoining flanks of rotor grooves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904037949 DE4037949A1 (en) | 1990-11-29 | 1990-11-29 | Device for transferring pressurised medium from fixed housing to rotary shaft - has dimensionally elastic sealing elements adjoining flanks of rotor grooves |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4037949A1 true DE4037949A1 (en) | 1992-06-04 |
Family
ID=6419135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19904037949 Ceased DE4037949A1 (en) | 1990-11-29 | 1990-11-29 | Device for transferring pressurised medium from fixed housing to rotary shaft - has dimensionally elastic sealing elements adjoining flanks of rotor grooves |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4037949A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3588124A (en) * | 1967-12-18 | 1971-06-28 | Guinard Pompes | Sealing device for pumps and other similar machines |
DE2227374A1 (en) * | 1972-06-06 | 1973-12-20 | Skf Kugellagerfabriken Gmbh | HYDRODYNAMIC SEAL |
DE2454153A1 (en) * | 1973-11-17 | 1975-05-28 | Nippon Piston Ring Co Ltd | SEALING RING ASSEMBLY FOR A ROTATING SHAFT OR DGL. |
DE3043617A1 (en) * | 1979-11-23 | 1981-06-04 | Cross Manufacturing Co. (1938) Ltd., Bath, Avon | GAS SEAL |
DE3031805A1 (en) * | 1980-08-22 | 1982-04-08 | Otto 8399 Ruhstorf Wimmer | Pressure medium transfer system for hydraulic machine - consists of distributor with transfer channels and seal rings in groove of annular distributor |
DE3331673A1 (en) * | 1983-09-02 | 1985-03-21 | Robert Bosch Gmbh, 7000 Stuttgart | Sealing arrangement |
DE3806931A1 (en) * | 1987-03-31 | 1988-10-20 | Glyco Antriebstechnik Gmbh | TURNING FOR THE TRANSFER OF PRESSURED MEDIA FROM A STANDING TO A ROTATING MACHINE PART |
-
1990
- 1990-11-29 DE DE19904037949 patent/DE4037949A1/en not_active Ceased
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3588124A (en) * | 1967-12-18 | 1971-06-28 | Guinard Pompes | Sealing device for pumps and other similar machines |
DE2227374A1 (en) * | 1972-06-06 | 1973-12-20 | Skf Kugellagerfabriken Gmbh | HYDRODYNAMIC SEAL |
DE2454153A1 (en) * | 1973-11-17 | 1975-05-28 | Nippon Piston Ring Co Ltd | SEALING RING ASSEMBLY FOR A ROTATING SHAFT OR DGL. |
DE3043617A1 (en) * | 1979-11-23 | 1981-06-04 | Cross Manufacturing Co. (1938) Ltd., Bath, Avon | GAS SEAL |
DE3031805A1 (en) * | 1980-08-22 | 1982-04-08 | Otto 8399 Ruhstorf Wimmer | Pressure medium transfer system for hydraulic machine - consists of distributor with transfer channels and seal rings in groove of annular distributor |
DE3331673A1 (en) * | 1983-09-02 | 1985-03-21 | Robert Bosch Gmbh, 7000 Stuttgart | Sealing arrangement |
DE3806931A1 (en) * | 1987-03-31 | 1988-10-20 | Glyco Antriebstechnik Gmbh | TURNING FOR THE TRANSFER OF PRESSURED MEDIA FROM A STANDING TO A ROTATING MACHINE PART |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |