DE10303419A1 - Structure unit e.g. transmission, has flow-path connected between gap part and low pressure area in casing and guided through shaft flange to rotate with shaft which passes through termination part of flow path - Google Patents
Structure unit e.g. transmission, has flow-path connected between gap part and low pressure area in casing and guided through shaft flange to rotate with shaft which passes through termination part of flow path Download PDFInfo
- Publication number
- DE10303419A1 DE10303419A1 DE2003103419 DE10303419A DE10303419A1 DE 10303419 A1 DE10303419 A1 DE 10303419A1 DE 2003103419 DE2003103419 DE 2003103419 DE 10303419 A DE10303419 A DE 10303419A DE 10303419 A1 DE10303419 A1 DE 10303419A1
- Authority
- DE
- Germany
- Prior art keywords
- shaft
- flow
- channel
- casing
- low pressure
- 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.)
- Granted
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
- F16J15/002—Sealings comprising at least two sealings in succession
- F16J15/006—Sealings comprising at least two sealings in succession with division of the pressure
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
-
- 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
- F16J15/002—Sealings comprising at least two sealings in succession
- F16J15/004—Sealings comprising at least two sealings in succession forming of recuperation chamber for the leaking fluid
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Sealing Devices (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
Description
Die Erfindung betrifft eine Baueinheit mit einem Gehäuse, das einen Flüssigkeit gefüllten Innenraum aufweist, ferner eine Welle, die im Gehäuse gelagert und aus diesem heraus geführt ist.The invention relates to a structural unit with a housing, the one liquid filled Has interior, also a shaft, which is mounted in the housing and led out of this is.
Bei solchen Baueinheiten handelt es sich z. B. um Getriebe. Sie umfassen einen Innenraum, der wenigstens teilweise mit Öl oder einem anderen Schmiermittel gefüllt ist, das unter relativ hohem Druck steht. Zwischen einer Gehäusewand, beispielsweise der Gehäuse-Außenwand und der Welle befindet sich ein Spalt, der abgedichtet werden muß, damit kein Öl aus dem unter Druck stehenden Innenraum nach außen austreten kann.Acting in such units z. B. gear. They include an interior that at least partly with oil or another lubricant that is filled under relative high pressure. Between a housing wall, for example the Housing outer wall and there is a gap in the shaft that must be sealed so that no oil can escape to the outside from the pressurized interior.
Das Problem der Abdichtung eines umlaufenden gegen ein feststehendes Bauteil ist bekannt. Zur Abdichtung werden meist Radial-Wellendichtringe verwendet. Diese haben jedoch den Nachteil, dass sie nur relativ geringen Drücken des Schmiermittels standhalten können. Deswegen verwendet man zusätzlich Dichtringe von rechteckigem Querschnitt. Diese sollen den Druck des Hochdruckbereiches auf ein niedrigeres Niveau absenken. Sie führen zwar zu einer Druckverminderung vom Hochdruckbereich zum Radial-Wellendichtring. Jedoch dichten sie nicht völlig ab, sondern es fließt ein gewisser Leckagestrom. Es gibt zahlreiche Anwendungsfälle, bei welchen ein Leckagestrom nicht akzeptabel ist, auch nicht bei kleinen Mengen.The problem of sealing one rotating against a fixed component is known. For sealing radial shaft seals are mostly used. However, these have the disadvantage that they can only withstand relatively low pressures of the lubricant can. That's why you use it additionally Sealing rings of rectangular cross-section. These are supposed to be the pressure lower the high pressure area to a lower level. she lead though to reduce the pressure from the high pressure area to the radial shaft seal. However, they do not fully seal but it flows a certain leakage flow. There are numerous use cases in which a leakage flow is not acceptable, even with small quantities.
Der Erfindung liegt die Aufgabe zu Grunde, eine Baueinheit der eingangs genannten Art, vor allem ein Getriebe, derart zu gestalten, dass das genannte Problem des Leckagestromes beseitigt wird. Diese Aufgabe wird durch die Merkmale von Anspruch 1 gelöst.The invention is based on the object Basically, a unit of the type mentioned, especially one Gearbox to be designed in such a way that the problem of leakage current is eliminated. This task is characterized by the features of claim 1 solved.
Demgemäß schlägt der Erfinder folgendes vor: Die Abdichtung wird derart gestaltet, dass zwar noch ein Leckagestrom anfällt oder anfallen kann. Jedoch wird dieser aufgrund eines besonders gestalteten Kanales an einen Ort geleitet, an dem er keinen Schaden anrichten kann.Accordingly, the inventor proposes the following: The seal is designed in such a way that there is still a leakage flow accrues or may be incurred. However, this is due to a special designed channel directed to a place where it did no harm can wreak havoc.
Die Erfindung ist anhand der Zeichnung näher erläutert. Darin sind drei Ausführungsformen schematisch dargestellt.The invention is based on the drawing explained in more detail. In this three embodiments are schematic shown.
In
Eine Baueinheit, beispielsweise ein Getriebe,
umfaßt ein
Gehäuse
An assembly, for example a transmission, comprises a housing
Die Gehäusewand
Zwischen der Bohrung
Man erkennt einen Kanal
Der horizontale Abschnitt
Wichtig ist, dass die Mündung
Der Grund ist folgender: Durch die
genannte Anordnung findet eine Pumpwirkung statt. Es wird somit
ein Leckagestrom, sofern er noch nach der Dichteinheit
Die Ausführungsform gemäß
Man
erkennt wiederuam eine Gehäusewand
Again you can see a housing wall
Die Zwischenwand
Eine weitere Besondeheit der Ausführungsform
gemäß
Bei der Ausführungsform gemäß
Es ist auch denkbar, die Abdichtung
zwischen der Gehäusewand
Claims (5)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003103419 DE10303419B4 (en) | 2003-01-29 | 2003-01-29 | Assembly with an oil-filled housing and a guided through the housing shaft |
| JP2004022216A JP3920856B2 (en) | 2003-01-29 | 2004-01-29 | A component unit having a casing filled with oil and a shaft passing through the casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003103419 DE10303419B4 (en) | 2003-01-29 | 2003-01-29 | Assembly with an oil-filled housing and a guided through the housing shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE10303419A1 true DE10303419A1 (en) | 2004-08-26 |
| DE10303419B4 DE10303419B4 (en) | 2008-01-17 |
Family
ID=32747501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2003103419 Expired - Fee Related DE10303419B4 (en) | 2003-01-29 | 2003-01-29 | Assembly with an oil-filled housing and a guided through the housing shaft |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3920856B2 (en) |
| DE (1) | DE10303419B4 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004046297A1 (en) * | 2004-09-24 | 2006-03-30 | Zf Friedrichshafen Ag | Arrangement for sealing of two shafts co-axially mounted in gear case, a central shaft, and a hollow shaft, has annular gap between central shaft and hollow shaft and accommodates two radial shaft sealing rings |
| CN102818001A (en) * | 2012-08-31 | 2012-12-12 | 重庆齿轮箱有限责任公司 | Axial oil inlet structure of gear case |
| CN112747107A (en) * | 2020-12-28 | 2021-05-04 | 河北工业大学 | Pressure pumping structure and pressure pumping method for speed reducer |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2266407A (en) * | 1939-09-21 | 1941-12-16 | Elevator Supplies Co Inc | Wire drawing machine |
| US2494971A (en) * | 1944-04-27 | 1950-01-17 | Jet Shaft Seals Inc | Sealing device for shafts |
| DE1719078U (en) * | 1953-11-24 | 1956-03-22 | Eberspaecher J | DEVICE SECURING THE LUBRICANT COMPARTMENT AGAINST OIL LEAKS IN HIGH SPEED FLOW MACHINES THROUGH VENTILATION. |
| GB832676A (en) * | 1957-11-13 | 1960-04-13 | Garrett Corp | Improvements relating to sealing apparatus |
| GB936599A (en) * | 1961-08-30 | 1963-09-11 | Ass Elect Ind | Improvements relating to fluid seals for rotating shafts |
| DE2064119A1 (en) * | 1970-12-28 | 1972-06-29 | Vepa Ag | Oil seal seal - with drillings to lead off any collected seeped oil |
| US4494761A (en) * | 1982-04-15 | 1985-01-22 | Alfa Romeo S.P.A. | Lubricating oil seal device for rotating shaft bearings |
| DE8325049U1 (en) * | 1985-03-28 | Flottweg-Werk Dr. Georg Bruckmayer GmbH & Co. KG, 8313 Vilsbiburg | Machine with shaft seal | |
| DE8715621U1 (en) * | 1987-11-25 | 1988-02-18 | Siemens AG, 1000 Berlin und 8000 München | Labyrinth seal |
| DE4403776C2 (en) * | 1994-02-01 | 1998-04-09 | Aeg Westinghouse Transport | Seal with labyrinthine sealing gap |
-
2003
- 2003-01-29 DE DE2003103419 patent/DE10303419B4/en not_active Expired - Fee Related
-
2004
- 2004-01-29 JP JP2004022216A patent/JP3920856B2/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8325049U1 (en) * | 1985-03-28 | Flottweg-Werk Dr. Georg Bruckmayer GmbH & Co. KG, 8313 Vilsbiburg | Machine with shaft seal | |
| US2266407A (en) * | 1939-09-21 | 1941-12-16 | Elevator Supplies Co Inc | Wire drawing machine |
| US2494971A (en) * | 1944-04-27 | 1950-01-17 | Jet Shaft Seals Inc | Sealing device for shafts |
| DE1719078U (en) * | 1953-11-24 | 1956-03-22 | Eberspaecher J | DEVICE SECURING THE LUBRICANT COMPARTMENT AGAINST OIL LEAKS IN HIGH SPEED FLOW MACHINES THROUGH VENTILATION. |
| GB832676A (en) * | 1957-11-13 | 1960-04-13 | Garrett Corp | Improvements relating to sealing apparatus |
| GB936599A (en) * | 1961-08-30 | 1963-09-11 | Ass Elect Ind | Improvements relating to fluid seals for rotating shafts |
| DE2064119A1 (en) * | 1970-12-28 | 1972-06-29 | Vepa Ag | Oil seal seal - with drillings to lead off any collected seeped oil |
| US4494761A (en) * | 1982-04-15 | 1985-01-22 | Alfa Romeo S.P.A. | Lubricating oil seal device for rotating shaft bearings |
| DE8715621U1 (en) * | 1987-11-25 | 1988-02-18 | Siemens AG, 1000 Berlin und 8000 München | Labyrinth seal |
| DE4403776C2 (en) * | 1994-02-01 | 1998-04-09 | Aeg Westinghouse Transport | Seal with labyrinthine sealing gap |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004046297A1 (en) * | 2004-09-24 | 2006-03-30 | Zf Friedrichshafen Ag | Arrangement for sealing of two shafts co-axially mounted in gear case, a central shaft, and a hollow shaft, has annular gap between central shaft and hollow shaft and accommodates two radial shaft sealing rings |
| CN102818001A (en) * | 2012-08-31 | 2012-12-12 | 重庆齿轮箱有限责任公司 | Axial oil inlet structure of gear case |
| CN112747107A (en) * | 2020-12-28 | 2021-05-04 | 河北工业大学 | Pressure pumping structure and pressure pumping method for speed reducer |
| CN112747107B (en) * | 2020-12-28 | 2022-04-29 | 河北工业大学 | Pressure pumping structure and pressure pumping method for speed reducer |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10303419B4 (en) | 2008-01-17 |
| JP2004232863A (en) | 2004-08-19 |
| JP3920856B2 (en) | 2007-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8364 | No opposition during term of opposition | ||
| R081 | Change of applicant/patentee |
Owner name: VOITH PATENT GMBH, DE Free format text: FORMER OWNER: VOITH TURBO GMBH & CO. KG, 89522 HEIDENHEIM, DE |
|
| R082 | Change of representative | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |