DE2234930A1 - Rotor shaft - of polyamide with solid lubricant - Google Patents
Rotor shaft - of polyamide with solid lubricantInfo
- Publication number
- DE2234930A1 DE2234930A1 DE2234930A DE2234930A DE2234930A1 DE 2234930 A1 DE2234930 A1 DE 2234930A1 DE 2234930 A DE2234930 A DE 2234930A DE 2234930 A DE2234930 A DE 2234930A DE 2234930 A1 DE2234930 A1 DE 2234930A1
- Authority
- DE
- Germany
- Prior art keywords
- rotor shaft
- polyamide
- solid lubricant
- stainless steel
- water circulation
- 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.)
- Pending
Links
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
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- 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
- F04D29/043—Shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
- F05D2300/433—Polyamides, e.g. NYLON
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/50—Intrinsic material properties or characteristics
- F05D2300/509—Self lubricating materials; Solid lubricants
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Description
Licentia Patent-Verwaltungs-GmbH Frankfurt/MainLicentia Patent-Verwaltungs-GmbH Frankfurt / Main
EBHZ-72/67 14. Juli 1972 EBHZ-72/67 July 14, 1972
- . Vg/sp-. Vg / sp
Rotorwelle für HeiflwasserumwalzpumpeRotor shaft for hot water circulation pump
Die Erfindung betrifft eine Rotorwelle für Heißwasserumwälzpumpen mit wassergeschmiertem Gleitlager.The invention relates to a rotor shaft for hot water circulation pumps with a water-lubricated slide bearing.
Es ist bekannt, derartige Wellen aus nichtrostendem Stahl herzustellen und für die Gleitlagerbuchsen Sinter-Kohlelager zu verwenden. Hierdurch sollen Lagergeräusche, die über das Rohrleitungssystem störend übertragen werden, auf ein Mindestmaß reduziert werden.It is known such shafts made of stainless steel and to use sintered carbon bearings for the plain bearing bushes. This should cause bearing noises that are transmitted in a disruptive manner via the pipeline system, are reduced to a minimum.
3098ÖA/03873098ÖA / 0387
EBHZ-72/67 - 2 - " 14. Juli 1972 EBHZ-72 / 67-2- "July 14, 1972
Vg/spVg / sp
Bei diesen bekannten Anordnungen hat sich nun gezeigt, daß Sinterkohlelager transportempfindlich und in Betrieb störanfällig sind und zu Ausfällen führen. Polyamide haben die unangenehme Eigenschaft, Wasser aufzunehmen und zu quellen. Dieser Nachteil wurde erfindungsgemäß insofern positiv ausgenutzt, als bei wassergeschmierten Pumpenaggregaten, hier insbesondere bei Heizungswasserumwälzpumpen, ein nicht korrodierendes Wellenmaterial verwendet wirdj das außerdem geräuschdämmende Eigenschaften besitzt, vom Ausgangsmaterial wesentlich billiger als Edelstahl ist und leicher bearbeitbar ist. Als Gleitlagermaterial, ist an eine tiefgezogene Lagerbuchse aus Kupfer, Bronze oder Edelstahlblech gedacht.With these known arrangements it has now been shown that sintered coal bearings are sensitive to transport and prone to failure during operation and lead to failures. Polyamides have the unpleasant property of absorbing water and swelling. According to the invention, this disadvantage has been used positively to the extent that it is used here in water-lubricated pump units A non-corrosive shaft material is used, especially in heating water circulation pumps, which also absorbs noise Has properties, the starting material is much cheaper than stainless steel and easier to work with is. A deep-drawn bearing bush made of copper, bronze or stainless steel sheet is thought of as the plain bearing material.
Der Erfindung liegt die Aufgabe zugrunde, eine Rotorwelle für Heißwasserumlaufpumpen zu schaffen, die auch bei grös— serem Lagerspiel keine Lagergeräusche auslöst und außerdem' gute Laufeigenschaften besitzt. Gemäß der Erfindung wird dies dadurch erreicht, daß die -Rotorwelle aus Kunststoff, aus Nylon, je nach Maßgabe, aus mit Molybdän-sulfit und/ oder Graphit angereichertem Kunststoff auf Polyamidbasis besteht·The invention is based on the object of creating a rotor shaft for hot water circulation pumps that can be used even with large This bearing play does not cause any bearing noises and also ' has good running properties. According to the invention this is achieved by the fact that the rotor shaft is made of plastic, nylon, depending on the requirements, made of molybdenum sulfite and / or graphite-enriched plastic based on polyamide
Die erfindungsgemäße Rotorwelle weist neben den vorgenannten Vorteilen auch eine höhere Lebensdauer auf und ist außerdem in der Herstellung wesentlich billiger.In addition to the aforementioned advantages, the rotor shaft according to the invention also has a longer service life and is also Much cheaper to manufacture.
Ein Ausführungsbeispiel der Erfindung ist in der nachfolgenden Beschreibung der beiliegenden Zeichnung dargestellt.An embodiment of the invention is shown in the following description of the accompanying drawings.
Die Zeichnung zeigt eine übliche Heißwasserumwälzpumpe für Zentralheizungen, die aus einem Gehäuse 1 mit Anschlußflan-The drawing shows a conventional hot water circulation pump for central heating, which consists of a housing 1 with a connecting flange
309884/0387309884/0387
EBHZ-72/67 - 3 - . 14. Juli 1972 EBHZ-72/67 - 3 -. July 14, 1972
Vg/spVg / sp
sehen 2 und 3 besteht. Im Gehäuse 1 ist die Ständerwicklung
4 angeordnet, die durch ein Spaltrohr 5 flüssigkeitsdicht
abgeteilt ist.see 2 and 3 consists. In the housing 1, the stator winding 4 is arranged, which is liquid-tight through a can 5
is divided.
Der Rotor 6 ist mit seiner Welle 7 in Gleitlagern 8 gelagert, die durch das Heizungswasser geschmiert werden.The rotor 6 is mounted with its shaft 7 in slide bearings 8 which are lubricated by the heating water.
Gemäß der Erfindung besteht die Rotorwelle aus einem Kunststoff, z. B. aus mit Molybdän-sulfit und/oder Graphit angereichertem Kunststoff auf Polyamidbasis.According to the invention, the rotor shaft consists of a plastic, for. B. from enriched with molybdenum sulfite and / or graphite Polyamide-based plastic.
Das Blechpaket des Läufers wird üblicherweise auf der Welle angeordnet. Für die Gleitlager werden Lagerbuchsen aus gezogenem, rostfreien Stahl, Kupfer oder Bronze verwendet.The laminated core of the rotor is usually arranged on the shaft. Bearing bushes made of drawn, stainless steel, copper or bronze used.
309884/0 3 87309884/0 3 87
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2234930A DE2234930A1 (en) | 1972-07-15 | 1972-07-15 | Rotor shaft - of polyamide with solid lubricant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2234930A DE2234930A1 (en) | 1972-07-15 | 1972-07-15 | Rotor shaft - of polyamide with solid lubricant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2234930A1 true DE2234930A1 (en) | 1974-01-24 |
Family
ID=5850783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2234930A Pending DE2234930A1 (en) | 1972-07-15 | 1972-07-15 | Rotor shaft - of polyamide with solid lubricant |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2234930A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0551550A1 (en) * | 1992-01-17 | 1993-07-21 | Siemens Aktiengesellschaft | Pump with a wet rotor |
-
1972
- 1972-07-15 DE DE2234930A patent/DE2234930A1/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0551550A1 (en) * | 1992-01-17 | 1993-07-21 | Siemens Aktiengesellschaft | Pump with a wet rotor |
| TR27439A (en) * | 1992-01-17 | 1995-05-24 | Siemens Ag | Pump driven by an electric motor. |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHJ | Non-payment of the annual fee |