WO1994007034A1 - Lagerung - Google Patents
Lagerung Download PDFInfo
- Publication number
- WO1994007034A1 WO1994007034A1 PCT/EP1993/002451 EP9302451W WO9407034A1 WO 1994007034 A1 WO1994007034 A1 WO 1994007034A1 EP 9302451 W EP9302451 W EP 9302451W WO 9407034 A1 WO9407034 A1 WO 9407034A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bearing shell
- holding element
- housing
- bearing
- pump
- Prior art date
Links
- 238000003860 storage Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/047—Bearings hydrostatic; hydrodynamic
Definitions
- the invention relates to a bearing for centrifugal pumps, consisting of a bearing shell arranged in the pump housing and a centrifugal pump impeller mounted within the bearing shell with the suction opening.
- a generic construction is known from GB-PS 805 825.
- a bearing shell of a hydrostatic bearing is pressed into the pump housing, into which an impeller with an extended suction mouth is immersed.
- This type of construction is very complex, since a very precise machining of the inside of the housing is necessary to prevent misalignment during later assembly.
- Something similar shows the construction of DE-OS 30 11 380, in which a double-flow impeller with its two inlet openings is mounted directly in corresponding bearing shells.
- suction opening of an impeller can also be designed as a rotor of an electric motor is known from the construction according to GB-PS 909 550.
- the invention is based on the problem of developing an easy-to-mount and easy-to-control mounting for centrifugal pumps of the generic type.
- the solution to this problem is given in the characterizing part of the main claim. This makes it possible to have the machining of the receiving surfaces for the bearing shell and the mounting of the bearing shell itself carried out from the outside of the pump housing. In addition to the better accessibility, this means a considerable reduction in the processing effort. Furthermore, by simply removing it a connected pipeline, e.g. the suction line, the condition of the bearing can be checked. The dismantling of the pumps that was previously necessary for this is completely eliminated.
- the holding element can be sealed off from the flange and the housing by means of proven sealing elements, such as O-rings, flat seals or the like.
- the sealing elements are selected according to the operating conditions of the pump.
- Anti-rotation elements prevent any rotation of the bearing shell.
- the bearing shell is arranged so that it can tilt. This can e.g. by means of an outwardly facing narrow edge or collar with which the bearing shell is guided centrally in the housing.
- Two projections can be attached to the bearing shell or the collar, which ensure that the bearing shell is supported on the holding element in a tiltable manner. This configuration is useful for pumps with high internal pressures. This is because these can assume orders of magnitude which would overwhelm an elastic element which ensures tilting mobility.
- This design of the bearing allows easy replacement if the bearing shell wears out.
- the shortest overall length of a pump is obtained when the flange of a pipeline to be connected to the pump acts directly on a holding element.
- the flange screws thus fix the pump bearing within the housing in the simplest manner with the interposition of the holding element.
- This solution can be used for both single-stage and multi-stage centrifugal pumps.
- the overall length of the pump can be reduced and the rigidity of the rotating part can be significantly improved.
- Fig. 1 shows a section through the first impeller of a pump
- Fig. 2 shows a section through the horizontal plane of a pump with a higher pressure level
- Fig. 3 is an enlargement of a detail of Fig. 2 and the
- FIG. 1 shows an impeller 1 of a single-stage or the first impeller of a multi-stage centrifugal pump, which is fastened to a shaft 3 with a screw 2.
- a bearing shell 5 is inserted into the housing 4 from the outside, which is mounted with a narrow collar 15 so that it can tilt with the interposition of elastic sealing rings 6.
- the holding element 7 is sealed by a sealing ring 8 with respect to the housing 4 and by a sealing ring 9 with respect to a flange 10 of a line leading the pumping medium to the pump.
- the flange 10 is pulled against the housing 4 by conventional fastening means, here screws 11, and thereby presses the holding element 7 and the bearing shell 5 lying against it into the housing 4.
- An anti-rotation device 12 prevents rotation of the bearing shell 5.
- the impeller is on the suction mouth 13 equipped with a race 14 which is slidably mounted within the bearing shell 5. 2 shows a solution for those applications in which a very high pressure prevails in the wheel side space of the impeller 1, in which two projections 16 which protrude in the axial direction and are arranged in the horizontal ring plane are attached to the collar 15.
- the section shown here corresponds to a horizontal section through the suction side of a pump.
- FIG. 3 is an enlarged illustration from the circle of FIG. 2.
- the collar 16 is provided with two projections 16 at two points located in a horizontal plane and opposite one another with respect to the diameter. These rest directly on the holding element 7 and transmit those axial pressure forces which act on the end face of the bearing shell 5 located therein due to the pressure in the suction-side wheel side space.
- the contact surface of the projections 16 is dimensioned and designed such that the permissible surface pressure is not exceeded and, on the other hand, the tilting movement around the two projections 16 is ensured.
- FIG. 4 shows an enlarged side view of a projection 16 on the collar 15 and
- FIG. 5 shows an end view of a bearing shell 5 with molded projections 16.
- These projections can, for example, be molded on, pressed on, cast on and by means of other known ones mechanical processing methods are created.
- This type of impeller or shaft bearing allows access to the bearing for inspection or control purposes in the simplest way. By simply removing the pipeline, which is designed here as a suction line, the bearing can be inspected immediately and replaced in the shortest possible time in the event of a possible damage. The complete disassembly of the pump that has been usual up to now is no longer necessary.
- An operator of a centrifugal pump designed according to the invention can thus carry out an inspection or repair without any problems and has the additional advantage of an extremely low loss of production.
- the overall length of the pump can be considerably shortened by this design. This is because the frequently used shaft bearings in a bearing star arranged within the inlet cross section can have a very disadvantageous influence on the vibration behavior and the overall length.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6507771A JP2829546B2 (ja) | 1992-09-14 | 1993-09-10 | 回転子形ポンプ用軸受装置 |
US08/403,685 US5547289A (en) | 1992-09-14 | 1993-09-10 | Bearing system |
EP93919317A EP0662197B1 (de) | 1992-09-14 | 1993-09-10 | Lagerung |
DE59302466T DE59302466D1 (de) | 1992-09-14 | 1993-09-10 | Lagerung |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4230714.7 | 1992-09-14 | ||
DE4230714 | 1992-09-14 | ||
DEP4327425.0 | 1993-08-14 | ||
DE4327425A DE4327425A1 (de) | 1992-09-14 | 1993-08-14 | Lagerung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994007034A1 true WO1994007034A1 (de) | 1994-03-31 |
Family
ID=25918505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1993/002451 WO1994007034A1 (de) | 1992-09-14 | 1993-09-10 | Lagerung |
Country Status (5)
Country | Link |
---|---|
US (1) | US5547289A (de) |
EP (1) | EP0662197B1 (de) |
JP (1) | JP2829546B2 (de) |
DE (2) | DE4327425A1 (de) |
WO (1) | WO1994007034A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3226853B2 (ja) * | 1997-09-30 | 2001-11-05 | 株式会社荏原製作所 | ポンプの配管接続部構造 |
NO311105B1 (no) * | 2000-02-24 | 2001-10-08 | Hamworthy Kse As | Sentrifugalpumpe |
US10240600B2 (en) | 2017-04-26 | 2019-03-26 | Wilden Pump And Engineering Llc | Magnetically engaged pump |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR752783A (fr) * | 1933-03-20 | 1933-09-30 | Franz Oberascher & Co | Pompe centrifuge |
GB805825A (en) * | 1956-10-02 | 1958-12-17 | Allis Chalmers Mfg Co | Improved fluid pressure bearing |
US3659910A (en) * | 1970-05-06 | 1972-05-02 | Gen Motors Corp | Retainer for spherical adapter |
DE2254265A1 (de) * | 1972-11-06 | 1974-05-16 | Franz Klaus | Stopfbuechslose chemiekreiselpumpe |
DE2901638B1 (de) * | 1979-01-17 | 1979-08-30 | Gascoigne Suedstall Gmbh | Kreiselpumpe fuer mit Feststoffen versetzte Fluessigkeiten |
DE3419038A1 (de) * | 1983-06-24 | 1985-01-03 | Landustrie Maschf | Unteres lager fuer eine schraubenpumpe |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2517477A (en) * | 1947-12-04 | 1950-08-01 | Comb Eng Superheater Inc | Composite wear ring for centrifugal pump impellers |
US2956841A (en) * | 1957-01-30 | 1960-10-18 | Westinghouse Electric Corp | Bearing and mounting therefor |
US2892663A (en) * | 1957-04-08 | 1959-06-30 | Crane Co | Pump bearing assembly |
DE1403855A1 (de) * | 1959-12-14 | 1968-10-24 | Moser Dr Ing Dipl Ing Hans | Hohlwellenpumpe mit Lageranordnungen fuer Achsschubausgleich |
US3388880A (en) * | 1967-04-03 | 1968-06-18 | Newport News S & D Co | Flexible bearing support |
JPS554960A (en) * | 1978-06-28 | 1980-01-14 | Hitachi Ltd | Transfer tube |
DE2847909C2 (de) * | 1978-11-04 | 1982-06-16 | Roland Dipl.-Ing. 4230 Wesel Paurat | Vorrichtung zum Vortrieb eines Aufhauens bei bergmännischen Gewinnungsbetrieben |
FR2454006A1 (fr) * | 1979-04-12 | 1980-11-07 | Framatome Sa | Pompe helico-centrifuge de circulation de fluide |
DE3011380C2 (de) * | 1980-03-25 | 1985-01-24 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | Laufradlagerung an einer Kondensatpumpe |
SU1323754A1 (ru) * | 1985-11-19 | 1987-07-15 | Сумский филиал Харьковского политехнического института им.В.И.Ленина | Разгрузочное устройство ротора |
SU1373888A2 (ru) * | 1986-06-24 | 1988-02-15 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Атомного И Энергетического Насосостроения | Разгрузочное устройство центробежного насоса |
US5106262A (en) * | 1986-11-13 | 1992-04-21 | Oklejas Robert A | Idler disk |
SU1448113A1 (ru) * | 1987-03-17 | 1988-12-30 | Всесоюзный научно-исследовательский и конструкторско-технологический институт компрессорного машиностроения | Устройство дл разгрузки ротора от действи осевой силы |
DE3834862A1 (de) * | 1988-10-13 | 1990-04-19 | Klein Schanzlin & Becker Ag | Wellenlagerung einer spaltrohrmotorpumpe |
SU1707262A1 (ru) * | 1990-02-05 | 1992-01-23 | Уральский филиал Всесоюзного теплотехнического научно-исследовательского института им.Ф.Э.Дзержинского | Центробежный насос |
DE4108257C2 (de) * | 1990-03-17 | 1995-01-26 | Allweiler Ag | Magnetkupplungspumpe |
-
1993
- 1993-08-14 DE DE4327425A patent/DE4327425A1/de not_active Withdrawn
- 1993-09-10 US US08/403,685 patent/US5547289A/en not_active Expired - Lifetime
- 1993-09-10 WO PCT/EP1993/002451 patent/WO1994007034A1/de active IP Right Grant
- 1993-09-10 DE DE59302466T patent/DE59302466D1/de not_active Expired - Lifetime
- 1993-09-10 JP JP6507771A patent/JP2829546B2/ja not_active Expired - Lifetime
- 1993-09-10 EP EP93919317A patent/EP0662197B1/de not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR752783A (fr) * | 1933-03-20 | 1933-09-30 | Franz Oberascher & Co | Pompe centrifuge |
GB805825A (en) * | 1956-10-02 | 1958-12-17 | Allis Chalmers Mfg Co | Improved fluid pressure bearing |
US3659910A (en) * | 1970-05-06 | 1972-05-02 | Gen Motors Corp | Retainer for spherical adapter |
DE2254265A1 (de) * | 1972-11-06 | 1974-05-16 | Franz Klaus | Stopfbuechslose chemiekreiselpumpe |
DE2901638B1 (de) * | 1979-01-17 | 1979-08-30 | Gascoigne Suedstall Gmbh | Kreiselpumpe fuer mit Feststoffen versetzte Fluessigkeiten |
DE3419038A1 (de) * | 1983-06-24 | 1985-01-03 | Landustrie Maschf | Unteres lager fuer eine schraubenpumpe |
Also Published As
Publication number | Publication date |
---|---|
EP0662197A1 (de) | 1995-07-12 |
US5547289A (en) | 1996-08-20 |
EP0662197B1 (de) | 1996-05-01 |
DE4327425A1 (de) | 1994-03-17 |
JPH07507123A (ja) | 1995-08-03 |
JP2829546B2 (ja) | 1998-11-25 |
DE59302466D1 (de) | 1996-06-05 |
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