WO2006058814A1 - Zahnradanordnung - Google Patents
Zahnradanordnung Download PDFInfo
- Publication number
- WO2006058814A1 WO2006058814A1 PCT/EP2005/055727 EP2005055727W WO2006058814A1 WO 2006058814 A1 WO2006058814 A1 WO 2006058814A1 EP 2005055727 W EP2005055727 W EP 2005055727W WO 2006058814 A1 WO2006058814 A1 WO 2006058814A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gear
- gear arrangement
- arrangement according
- shaft
- disc
- Prior art date
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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0088—Lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
-
- 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
- F16H57/0427—Guidance of lubricant on rotary parts, e.g. using baffles for collecting lubricant by centrifugal force
-
- 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
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0426—Means for guiding lubricant into an axial channel of a shaft
-
- 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
- F16H57/0431—Means for guiding lubricant directly onto a tooth surface or to foot areas of a gear, e.g. by holes or grooves in a tooth flank
-
- 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
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0493—Gearings with spur or bevel gears
- F16H57/0495—Gearings with spur or bevel gears with fixed gear ratio
Definitions
- the invention relates to a gear arrangement which can be used in transmissions of various types of machines, especially in fast-rotating Ubersctzungs- or reduction power transmissions, such as in turbomachinery or synchronized Zwciwcllenmaschinen, such as screw and WälzkoJbenpumpen, use. Furthermore, the invention relates to a gear assembly and a screw pump, which is particularly suitable for the generation of vacuum.
- Drip lubrication by dropping spun oil from dripping edges utilizes gravitational force in the mold by placing a drip edge above a gear pair so that the oil drops fall onto the teeth of two intermeshed gears just before they mesh.
- This principle can be easily realized by a corresponding housing design, wherein the oil is thrown by a slinger from the oil sump out to the housing walls, and then to get along the housing wall to the drip edge.
- the drop lubrication by dripping from delivery lines at low oil pressure corresponds to the above-described principle of action with the exception of the oil supply.
- the oil is led via a pipeline directly to the tooth grip, where the drops of oil, as in the case of the above drip edge, fall onto the teeth of the intermeshed toothed wheels.
- the oil pump can be provided at any point, with a corresponding Rohrle ⁇ tungssystem also several gear pairs and bearings can be supplied with oil.
- this type of lubrication is somewhat more expensive, but its advantages in terms of pump location and number of lubrication points also make this oil lubrication often used.
- the oil mist lubrication with intensive oil mist can be applied at higher speeds when carried large amounts of oil and high Abspritzgeschwindigke ⁇ tcn a strong verwirbeites oil / air mixture cj s entire gear chamber flows through and thereby all Schmierstelien such as bearings and gears, achieved with sufficient intensity.
- larger amounts of oil must be circulated
- the pressure oil can be injected into a rotating shaft whose respective central bore oil leads to a gear, which then brings this oil via a introduced in the gear drilling system between two teeth, that in the meshing a larger ⁇ lmengc for lubrication and cooling is present.
- This type of lubrication is frequently used in planetary gearboxes of small gas turbines (eg auxiliary gas turbines, so-called APU in aircraft) in which a very high turbine speed (eg 40,000 to 80,000 rpm) is reduced to a relatively low output rotational speed (eg. eg 8,000 to 12,000 rpm).
- a very high turbine speed eg 40,000 to 80,000 rpm
- a relatively low output rotational speed eg. eg 8,000 to 12,000 rpm.
- a planetary gear which consists of a sun gear connected to the turbine rotor, three axle-fixed double-stage planetary gears and a driven side Hohfrad, oil injected into the sun gear and in the axes of the stepped planetary, that over the respective drilling systems each meshing is directly lubricated.
- the object of the invention is to provide a gear arrangement with a cost-effective and reliable lubrication.
- the gear arrangement according to the invention has a gear rotatably mounted on a shaft.
- a channel system for lubricant passage is provided in the shaft.
- the channel system for example, a central central bore, to which the lubricant, such as lubricating oil, is supplied.
- the channel system may include one or more radially extending bores connected to the central center bore. Since the lubricant is to be conveyed in the direction of the teeth of the gear, the channel system in any case at least one, preferably a plurality of outlet openings on the shaft circumference.
- a disc is arranged on the while adjacent to the gear. Here, the arrangement of the disc takes place such that at least partially a radial gap is formed between the gear and the disc. The radial gap is connected to the outlet opening. A lubricant emerging from the outlet opening passes thus in the radial gap and due to the rotational movement in a region of the gear teeth in which the radial gap ends.
- the lubricant supply according to the invention is independent of the tooth forms.
- the lubricant supply according to the invention can thus also be used in gears, which is designed for example as involute, or have a straight toothing, a helical toothing or an arrow toothing.
- a storage chamber is formed, which adjoins the radial gap.
- the stagnation chamber is thus provided in the region of the gear teeth and preferably designed such that a throwing away of the lubricant is substantially avoided.
- the lubricant is guided along the toothed engagement at the tooth meshes to a large extent on the engaged tooth flanks.
- the inventive provision of a stowage chamber a significantly larger portion of lubricant is directed to the tooth flanks.
- the stowage chamber the lubricant is retained according to the invention in the teeth and directed in the direction of the teeth.
- the storage chamber is formed by the disc, or a corresponding approach of the disc, and a gear meshing with the gear.
- the storage chamber can also be formed by a second disc connected to the meshing gear together with the first disc.
- the disk can be a separate component, but also a one-piece component formed together with the gear.
- the intermeshing gears may also be bevel gears or other special forms.
- spacers are preferably provided between the gear and the disc spacers.
- the spacers may be separate components.
- the spacers are formed as projections of the gear and / or the disc. This makes it possible in particular to mount the gear together with the disc together on the shaft and fix, for example by a nut together on the shaft. As a result, the assembly is considerably simplified.
- At least one of the spacers is arranged such that it is arranged opposite in the radial direction of the provided on the shaft circumference at least one outlet opening of the channel system.
- the spacer thus additionally serves as a baffle wall.
- a plurality of outlet openings are provided, wherein a spacer is preferably arranged opposite each outlet opening in order to obtain a diversified distribution.
- a preferably annular, surrounding the shaft collecting space is formed between the at least one outlet opening and the radial gap.
- the invention relates to a gear assembly, which is suitable for example for screw pumps, wherein the screw pumps are preferably used for vacuum generation.
- the transmission assembly according to the invention has two meshing gear arrangements, which are formed as described above.
- the storage chamber adjoining the two radial gaps is designed as a common storage chamber.
- the common stagnation chamber is formed by the two discs.
- the invention relates to a screw pump, which is used in particular for vacuum generation.
- the screw pump has a motor rotor connected to a motor. With the gear of the motor rotor meshes a first synchronous wheel of a first gear arrangement. A second synchronous wheel of a second gear arrangement meshes with the first synchronizing wheel.
- the first gear arrangement is designed and advantageously developed as described above. It is particularly preferred that, in addition to the first gear arrangement, the second gear arrangement is also formed or developed as described above.
- Fig. 2 is a schematic sectional view taken along the line II-II in Fig. 1 and
- Fig. 3 is a schematic Schn ⁇ ttansicht a gear assembly.
- the gear arrangement 10 has a gear 12 which is arranged on a wool 14. Further, a disc 16 is disposed on the shaft 14. In the illustrated embodiment, the gear 12 and the disc 16 is held together by a nut 18, wherein the disc 16 presses against an inner bearing shell 20 of a ball bearing 22.
- gear 12 meshes a gear 24, which is connected for example to a motor. Further meshes with the gear 12, a further gear 26 which is held on a shaft 28.
- the shafts 14, 28 are the two synchronizing shafts, which are synchronized via the two gears 12, 26.
- the shaft 14 For supplying lubricant, the shaft 14 has a central bore 30 and radial bores 32 connected to the central bore 30.
- the radial bores 32 each have an outlet opening 34, which are provided on a shaft circumference 36 of the shaft 14.
- the collecting space 38 is formed by the disc 16 and the gear 12 arranged adjacent to the disc 16. In the radial direction of the plenum 38 is formed ver ownedd and opens into a between the disc 16 and the gear 12 annularly formed radial gap 40th
- the stagnation chamber 42 is formed by an annular projection 44 of the disc 16 and a corresponding projection 46 on the gear 24 and a corresponding projection 48 on the gear 26.
- a spacer 54 (Fig. 1), which is formed in the example shown as fre ⁇ gefräster web of the gear 12.
- FIG. 2 four spacers 54 (FIG. 2) are provided.
- the spacers 54 are in each case arranged in the radial direction opposite to the outlet openings 34 of the radially extending channels 32.
- the storage chamber 42 is formed by the two disks 16, 56.
- the other disc 56 does not have such an approach.
- the disc 56 has a projection 58 with a wedge-shaped cross-section.
- the lubricant in the stowing chamber 42 is directed in the direction of the teeth of the two meshing gears 12.
- the lubricant supply is formed differently, wherein also a lubricant supply shown on the basis of FIG. 1 is possible.
- a lubricant supply is initially via a Zuglassclement 60 in a tube 62.
- the tube 62 is disposed in a central bore 64 of the shaft and has a relation to the inner diameter of the central bore 64 smaller outer diameter, so that a gap 68th is formed with the gap 68 then again the radially extending bores 32 are connected.
- the oil delivered into the pipe 62 may be supplied with an additional function (eg, bearing lubrication by branching off a portion of the oil) before passing to the radial movements 32 through the annular channel 64.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Gear Transmission (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE502005006235T DE502005006235D1 (de) | 2004-12-02 | 2005-11-03 | Zahnradanordnung |
EP05803441A EP1817512B1 (de) | 2004-12-02 | 2005-11-03 | Zahnradanordnung |
JP2007543814A JP2008522115A (ja) | 2004-12-02 | 2005-11-03 | 歯車装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004058056A DE102004058056A1 (de) | 2004-12-02 | 2004-12-02 | Zahnradanordnung |
DE102004058056.1 | 2004-12-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006058814A1 true WO2006058814A1 (de) | 2006-06-08 |
Family
ID=36441628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/055727 WO2006058814A1 (de) | 2004-12-02 | 2005-11-03 | Zahnradanordnung |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1817512B1 (de) |
JP (1) | JP2008522115A (de) |
KR (1) | KR20070086106A (de) |
DE (2) | DE102004058056A1 (de) |
WO (1) | WO2006058814A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011079971A1 (de) * | 2011-07-28 | 2013-01-31 | Zf Friedrichshafen Ag | Anordnung zur Schmierung von Zahnrädern |
DE102014210689A1 (de) | 2014-06-05 | 2015-12-17 | Zf Friedrichshafen Ag | Zahnradanordnung |
DE102016102096A1 (de) * | 2016-02-05 | 2017-08-10 | Rolls-Royce Deutschland Ltd & Co Kg | Verzahnungskörper mit einer Schmiermittelzuführeinrichtung und Strahltriebwerk mit einem derartigen Verzahnungskörper |
JP2019157939A (ja) * | 2018-03-09 | 2019-09-19 | Ntn株式会社 | 車両駆動装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19757855A1 (de) * | 1997-12-24 | 1999-07-01 | Albert Dick | Einrichtungen zur Einspritzschmierung von Zahnradgetrieben |
SE0301565L (sv) * | 2003-05-28 | 2004-11-29 | Volvo Lastvagnar Ab | Anordning för smörjning av en kuggväxel |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1034430B (de) * | 1954-08-13 | 1958-07-17 | Auto Union Gmbh | Einrichtung zur Bildung eines OElnebels zum Schmieren von Waelzlagern, Zahnraedern u. dgl. |
JPH0437214Y2 (de) * | 1985-01-26 | 1992-09-02 | ||
FR2637655B1 (fr) * | 1988-10-07 | 1994-01-28 | Alcatel Cit | Machine rotative du type pompe a vis |
DE19963172A1 (de) * | 1999-12-27 | 2001-06-28 | Leybold Vakuum Gmbh | Schraubenpumpe mit einem Kühlmittelkreislauf |
DE10039006A1 (de) * | 2000-08-10 | 2002-02-21 | Leybold Vakuum Gmbh | Zweiwellenvakuumpumpe |
DE202004011546U1 (de) * | 2004-07-23 | 2004-10-07 | As-Antriebstechnik Und Service Gmbh | Zahnrad mit Schmiermittel-Leitblech |
-
2004
- 2004-12-02 DE DE102004058056A patent/DE102004058056A1/de not_active Withdrawn
-
2005
- 2005-11-03 WO PCT/EP2005/055727 patent/WO2006058814A1/de active Application Filing
- 2005-11-03 DE DE502005006235T patent/DE502005006235D1/de active Active
- 2005-11-03 KR KR1020077013267A patent/KR20070086106A/ko not_active Application Discontinuation
- 2005-11-03 EP EP05803441A patent/EP1817512B1/de not_active Not-in-force
- 2005-11-03 JP JP2007543814A patent/JP2008522115A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19757855A1 (de) * | 1997-12-24 | 1999-07-01 | Albert Dick | Einrichtungen zur Einspritzschmierung von Zahnradgetrieben |
SE0301565L (sv) * | 2003-05-28 | 2004-11-29 | Volvo Lastvagnar Ab | Anordning för smörjning av en kuggväxel |
WO2004106778A1 (en) * | 2003-05-28 | 2004-12-09 | Volvo Lastvagnar Ab | Device for lubrication of a gear |
Also Published As
Publication number | Publication date |
---|---|
DE502005006235D1 (de) | 2009-01-22 |
DE102004058056A1 (de) | 2006-06-08 |
EP1817512A1 (de) | 2007-08-15 |
EP1817512B1 (de) | 2008-12-10 |
JP2008522115A (ja) | 2008-06-26 |
KR20070086106A (ko) | 2007-08-27 |
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