DE2951563A1 - BEARING FOR THE ROTOR SHAFT OF ELECTRIC MOTORS WITH BLOWING WHEEL - Google Patents
BEARING FOR THE ROTOR SHAFT OF ELECTRIC MOTORS WITH BLOWING WHEELInfo
- Publication number
- DE2951563A1 DE2951563A1 DE19792951563 DE2951563A DE2951563A1 DE 2951563 A1 DE2951563 A1 DE 2951563A1 DE 19792951563 DE19792951563 DE 19792951563 DE 2951563 A DE2951563 A DE 2951563A DE 2951563 A1 DE2951563 A1 DE 2951563A1
- Authority
- DE
- Germany
- Prior art keywords
- rotor shaft
- bearing
- electric motors
- rotor
- storage
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/03177—Fuel tanks made of non-metallic material, e.g. plastics, or of a combination of non-metallic and metallic material
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
- Support Of The Bearing (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
Die Erfindung bezieht sich auf eine Lagerung für die Rotorwelle von Elektromotoren, wobei die Rotorwelle ein Gebläserad zur Erzeugung von Unterdruck oder Oberdruck trägt.The invention relates to a bearing for the rotor shaft of electric motors, wherein the rotor shaft carries an impeller for generating negative pressure or positive pressure.
Es sind hier die verschiedensten Lagerungen bekannt. So existieren unter anderem auch Lagerungen mit Lagern, die eine axiale Anstellkraft erfordern, um eine einwandfreie Funktion zu gewährleisten. Dies sind Lager, wie z.B. Schulterlager, Kugel schal enlager oder Schrägkugellager. Bei allen bekannten Aufbauten werden diese Lager durch eine separate Einrichtung mit einer axialen Anstell kraft beaufschlagt.The most varied of bearings are known here. So exist under Among other things, also bearings with bearings that require an axial adjustment force to ensure proper function. These are camps such as shoulder bearings, ball socket bearings or angular contact ball bearings. At all known structures, these bearings are acted upon by a separate device with an axial adjustment force.
Nachteilig ist hierbei, daß zusätzliche Bauelemente, wie Federn, Kugeln
oder andere Einzelteile zur einwandfreien Funktion erforderlich sind.
Aufgabe der Erfindung ist es nun, die Lagerung so einfach wie möglich auszuführen.The disadvantage here is that additional components such as springs, balls or other items are required for proper function.
The object of the invention is now to make the storage as simple as possible.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß unter Ausnutzung
der vom Gebläserad beim Lauf erzeugten Axialkraft gebläseradseitig ein Lager angeordnet ist, das von seinem Aufbau her eine axiale Anstellkraft
erfordert, wie z.B. ein Schrägkugellager und keine zusätzliche Einrichtung
zur Aufbringung einer axialen Anstellkraft vorhanden ist.
Dabei kann es vorteilhaft sein, daß auf der gegenüberliegenden Seite ein
Gleitlager angeordnet ist. Zusätzlich ist es wichtig, daß bei Oberkopfbetrieb die vom Gebläserad erzeugte Axial kraft größer ist als die Gewichtskraft des Rotors. Dieser Aufbau hat zum entscheidenden Vorteil, daß eine
separate Einrichtung zur Aufbringung der axialen Anstellkraft entfallen
kann. Nachstehend ist ein Ausführungsbeispiel beschrieben.
Es zeigt:According to the invention, the object is achieved in that, taking advantage of the axial force generated by the impeller while running, a bearing is arranged on the impeller side, which requires an axial adjustment force due to its structure, such as an angular contact ball bearing and no additional device for applying an axial adjustment force is available.
It can be advantageous that a plain bearing is arranged on the opposite side. In addition, it is important that the axial force generated by the fan wheel is greater than the weight of the rotor when operating overhead. This structure has the decisive advantage that a separate device for applying the axial adjustment force can be dispensed with. An embodiment is described below.
It shows:
in vereinfachter Formin simplified form
-1--1-
130027/0294130027/0294
Vorwerk & Co.
Interholding GmbH.Vorwerk & Co.
Interholding GmbH.
Die Fig. 1 zeigt einen Längsschnitt durch ein Staubsaugergehäuse 7, das jedoch in vereinfachter Form dargestellt ist und nach dem Motorraum 8 abgeschnitten ist. Das Staubsaugergehäuse 7 umfaßt den Motorraum 8 und den Saugraum 9. Im Motorraum 8 ist ein Elektromotor 10 angeordnet, der auf der Zwischenwand 11 zwischen Motorraum 8 und Saugraum 9 befestigt ist. Der Elektromotor 10 greift mit seiner Welle 12 in den Saugraum 9 und trägt dort ein Gebläserad 13.Fig. 1 shows a longitudinal section through a vacuum cleaner housing 7, the however, is shown in simplified form and cut off after the engine compartment 8 is. The vacuum cleaner housing 7 includes the engine compartment 8 and the suction space 9. In the engine compartment 8, an electric motor 10 is arranged, which on the partition 11 is attached between the engine compartment 8 and the suction compartment 9. The electric motor 10 engages with its shaft 12 in the suction chamber 9 and carries a fan wheel 13 there.
Der Aufbau der Gesamtlagerung des Rotors 6 samt Welle 12 sieht nun folgendermaßen aus:The structure of the overall bearing of the rotor 6 including the shaft 12 now looks as follows the end:
Auf der Gebläseseite des Elektromotors 10 ist ein Lager 2 angeordnet,
das von seinem Aufbau her im Normal fall immer eine axiale Anstell kraft
erfordert, in diesem Beispiel ein sogenanntes Schrägkugellager 3. Dieses
besteht aus einem Außenring 14, einem Innenring 15 und Kugeln 16, die so zusammengesetzt sind, daß das Schrägkugellager 3 in Richtung der gegenüberliegenden
Seite 4 des Elektromotors 10 auseinandergezogen werden
könnte. Auf der gegenüberliegenden Seite 4 ist ein Gleitlager 5 angeordnet.
Dieses weist einen Filzring 17, eine Klemmbrille 18 und eine Abdekkung
19 auf. Zusätzlich ist eine AnI aufsehen be 20 angeordnet. Beim Lauf
wird nun im Saugraum 9 ein Unterdruck erzeugt. Die Auslaßöffnung
(nicht dargestellt ) des Saugraums 9 befindet sich in Zeichnungsrichtung hinter dem Gebläserad 13.On the fan side of the electric motor 10, a bearing 2 is arranged, which by its structure in the normal case always requires an axial adjustment force, in this example a so-called angular contact ball bearing 3. This consists of an outer ring 14, an inner ring 15 and balls 16, the are composed so that the angular contact ball bearing 3 could be pulled apart in the direction of the opposite side 4 of the electric motor 10. On the opposite side 4, a plain bearing 5 is arranged. This has a felt ring 17, a clamp 18 and a cover 19. In addition, there is a look up screen 20. When running, a negative pressure is now generated in the suction chamber 9. The outlet opening
(not shown) of the suction chamber 9 is located behind the fan wheel 13 in the direction of the drawing.
Der Unterdruck im Saugraum 9 bewirkt nun eine Axialkraft in der Richtung, die durch den Pfeil dargestellt ist. Dadurch werden am Schrägkugellager 3 der Innenring 15 und der Außenring 14 über die Kugeln 16 gegeneinander gepreßt, so daß eine separate Einrichtung zur Aufbringung einer axialen Anstell kraft entfallen kann.The negative pressure in the suction chamber 9 now causes an axial force in the direction which is represented by the arrow. This causes the angular contact ball bearing 3, the inner ring 15 and the outer ring 14 pressed against each other via the balls 16, so that a separate device for applying a axial adjustment force can be omitted.
Für den Fall, daß die Schwerkraftrichtung ebenfalls mit dem Pfeil identisch ist, wird im Stillstand das Gewicht des Rotors 6 das Schrägkugellager 3 zusammenhalten. Bei " Oberkopfbetrieb ", also wenn die Richtung der Schwerkraft dem Pfeil entgegengerichtet ist, sorgt die Anlaufscheibe 20 dafür, daß im Stillstand der Rotor 6 gegen das Gleitlager 5 anliegt. Bei dieser Art Betrieb ist es jedoch wichtig, daß die durch den Unterdruck erzeugte Axial kraft größer ist als die Gewichtskraft des Rotors 6.In the event that the direction of gravity is also identical to the arrow is, the weight of the rotor 6 becomes the angular contact ball bearing at a standstill 3 stick together. In "overhead operation", i.e. when the direction of gravity is opposite to the arrow, the thrust washer takes care of it 20 for the fact that the rotor 6 rests against the sliding bearing 5 at a standstill. In this type of operation, however, it is important that the by the negative pressure The generated axial force is greater than the weight of the rotor 6.
-2-130027/029/, -2-130027 / 029 /,
L e e r s e i t eL e r s e i t e
Claims (3)
Interholding GmbH.Vorwerk & Co.
Interholding GmbH.
ein Gleitlager(5) angeordnet ist.characterized in that on the opposite side (4)
a slide bearing (5) is arranged.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792951563 DE2951563A1 (en) | 1979-12-21 | 1979-12-21 | BEARING FOR THE ROTOR SHAFT OF ELECTRIC MOTORS WITH BLOWING WHEEL |
| NL8006635A NL8006635A (en) | 1979-12-21 | 1980-12-05 | BEARING FOR THE ROTOR SHAFT OF ELECTRIC MOTORS WITH FAN WHEEL. |
| SE8008643A SE8008643L (en) | 1979-12-21 | 1980-12-09 | STORAGE FOR ROTOR AXLE IN ELECTRIC MOTORS WITH SPEED WHEELS |
| GB8040628A GB2066584A (en) | 1979-12-21 | 1980-12-18 | Electric motors |
| FR8026931A FR2472294A1 (en) | 1979-12-21 | 1980-12-18 | DEVICE FOR MOUNTING THE ROTOR SHAFT OF ELECTRIC MOTORS, EQUIPPED WITH A FAN PROPELLER |
| NO803893A NO803893L (en) | 1979-12-21 | 1980-12-19 | STORAGE FOR ROTOR SHAFT FOR ELECTRIC MOTORS WITH AIRWHEELS |
| AT0622580A AT367578B (en) | 1979-12-21 | 1980-12-19 | BEARING FOR THE ROTOR SHAFT OF AN ELECTRIC MOTOR |
| DK543780A DK543780A (en) | 1979-12-21 | 1980-12-19 | RENT FOR THE SHAFT IN ELECTRIC MOTORS WITH BLOWER WHEELS |
| IT8050417A IT8050417A0 (en) | 1979-12-21 | 1980-12-19 | SUPPORT FOR THE ROTOR SHAFT OF ELECTRIC MOTORS WITH IMPELLER |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792951563 DE2951563A1 (en) | 1979-12-21 | 1979-12-21 | BEARING FOR THE ROTOR SHAFT OF ELECTRIC MOTORS WITH BLOWING WHEEL |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2951563A1 true DE2951563A1 (en) | 1981-07-02 |
Family
ID=6089153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792951563 Withdrawn DE2951563A1 (en) | 1979-12-21 | 1979-12-21 | BEARING FOR THE ROTOR SHAFT OF ELECTRIC MOTORS WITH BLOWING WHEEL |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT367578B (en) |
| DE (1) | DE2951563A1 (en) |
| DK (1) | DK543780A (en) |
| FR (1) | FR2472294A1 (en) |
| GB (1) | GB2066584A (en) |
| IT (1) | IT8050417A0 (en) |
| NL (1) | NL8006635A (en) |
| NO (1) | NO803893L (en) |
| SE (1) | SE8008643L (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0043538A3 (en) * | 1980-07-09 | 1983-03-16 | Shop-Vac Corporation | Fan suction for vacuum cleaner |
| ES2019491A6 (en) * | 1989-08-04 | 1991-06-16 | Fagor S Coop Ltda | Household appliance pump lost motion drive, seal and bearing arrangement |
| GB9114434D0 (en) * | 1991-07-03 | 1991-08-21 | Black & Decker Inc | Lawn mower |
| CN103654614B (en) * | 2012-09-11 | 2016-11-02 | 天佑电器（苏州）有限公司 | Vacuum cleaner |
| CN103654615B (en) * | 2012-09-11 | 2017-05-10 | 天佑电器（苏州）有限公司 | Dust collector |
| GB201419229D0 (en) * | 2014-10-29 | 2014-12-10 | Skf Ab | Bearing device with energy harvesting means |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1251081A (en) * | 1960-03-12 | 1961-01-13 | Lucas Industries Ltd | Liquid fuel pump |
| GB920961A (en) * | 1961-06-07 | 1963-03-13 | Poul Due Jensen | Improved centrifugal pump |
| FR1564656A (en) * | 1968-02-13 | 1969-04-25 | ||
| NL7014555A (en) * | 1970-10-03 | 1972-04-05 | ||
| GB1388533A (en) * | 1973-02-20 | 1975-03-26 | Kongsberg Vapenfab As | Method for supporting a rotating body of an electric generator in a missile and a supporting arrangement for supporting such bodies |
| GB1420840A (en) * | 1973-06-05 | 1976-01-14 | Walker A J | Electromagentically driven pumps |
| GB1508428A (en) * | 1974-07-25 | 1978-04-26 | Sealed Motor Constr Co Ltd | Axial gap electric motors |
-
1979
- 1979-12-21 DE DE19792951563 patent/DE2951563A1/en not_active Withdrawn
-
1980
- 1980-12-05 NL NL8006635A patent/NL8006635A/en not_active Application Discontinuation
- 1980-12-09 SE SE8008643A patent/SE8008643L/en not_active Application Discontinuation
- 1980-12-18 GB GB8040628A patent/GB2066584A/en not_active Withdrawn
- 1980-12-18 FR FR8026931A patent/FR2472294A1/en active Granted
- 1980-12-19 AT AT0622580A patent/AT367578B/en active
- 1980-12-19 NO NO803893A patent/NO803893L/en unknown
- 1980-12-19 DK DK543780A patent/DK543780A/en not_active Application Discontinuation
- 1980-12-19 IT IT8050417A patent/IT8050417A0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE8008643L (en) | 1981-06-22 |
| IT8050417A0 (en) | 1980-12-19 |
| NL8006635A (en) | 1981-07-16 |
| AT367578B (en) | 1982-07-12 |
| DK543780A (en) | 1981-06-22 |
| NO803893L (en) | 1981-06-22 |
| FR2472294A1 (en) | 1981-06-26 |
| GB2066584A (en) | 1981-07-08 |
| FR2472294B1 (en) | 1985-02-15 |
| ATA622580A (en) | 1981-11-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8139 | Disposal/non-payment of the annual fee |