DE2951563A1 - BEARING FOR THE ROTOR SHAFT OF ELECTRIC MOTORS WITH BLOWING WHEEL - Google Patents

BEARING FOR THE ROTOR SHAFT OF ELECTRIC MOTORS WITH BLOWING WHEEL

Info

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Withdrawn
Application number
DE19792951563
Other languages
German (de)
Inventor
Ing.(grad.) Miroslav Aigl
Dipl.-Ing. Dr.-Ing. Miroslav 5600 Wuppertal Beranek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vorwerk and Co Interholding GmbH
Original Assignee
Vorwerk and Co Interholding GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vorwerk and Co Interholding GmbH filed Critical Vorwerk and Co Interholding GmbH
Priority to DE19792951563 priority Critical patent/DE2951563A1/en
Priority to NL8006635A priority patent/NL8006635A/en
Priority to SE8008643A priority patent/SE8008643L/en
Priority to GB8040628A priority patent/GB2066584A/en
Priority to FR8026931A priority patent/FR2472294A1/en
Priority to DK543780A priority patent/DK543780A/en
Priority to AT0622580A priority patent/AT367578B/en
Priority to IT8050417A priority patent/IT8050417A0/en
Priority to NO803893A priority patent/NO803893L/en
Publication of DE2951563A1 publication Critical patent/DE2951563A1/en
Withdrawn legal-status Critical Current

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)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Support Of The Bearing (AREA)

Description

Vorwerk & Co. Wuppertal, den 18. Dezember 1979Vorwerk & Co. Wuppertal, December 18, 1979 Interholding GmbH.Interholding GmbH. Lagerung für die Rotorwelle von Elektromotoren mit Gebläserad Bearing for the rotor shaft of electric motors with a fan wheel

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:

Fig. 1: Den Längsschnitt durch ein StaubsaugergehäuseFig. 1: The longitudinal section through a vacuum cleaner housing

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)

Vorwerk & Co.
Interholding GmbH.Vorwerk & Co.
Interholding GmbH. PatentansprücheClaims Lagerung für die Rotorwelle von Elektromotoren, wobei die Rotorwelle ein Gebläserad zur Erzeugung von Unterdruck oder Oberdruck trägt, dadurch gekennzeichnet, daß unter Ausnutzung der vom Gebläserad (1) beim Lauf erzeugten Axialkraft gebläseradseitig ein Lager (2) angeordnet ist, das von seinem Aufbau her eine axiale Anstell kraft erfordert, wie z.B. ein Schrägkugellager(3) und keine zusätzliche Einrichtung zur Aufbringung einer axialen Anstellkraft vorhanden ist.Storage for the rotor shaft of electric motors, the rotor shaft carries an impeller for generating underpressure or overpressure, characterized in that, taking advantage of the from the impeller (1) Axial force generated during the run is arranged on the fan wheel side a bearing (2) which, in terms of its structure, is an axial Adjustment force required, such as an angular contact ball bearing (3) and none additional device for applying an axial adjustment force is available. 2) Lagerung für die Rotorwelle von Elektromotoren nach Anspruch 12) storage for the rotor shaft of electric motors according to claim 1 dadurch gekennzeichnet, daß auf der gegenüberliegenden Seite(4)
ein Gleitlager(5) angeordnet ist.characterized in that on the opposite side (4)
a slide bearing (5) is arranged. 3) Lagerung für die Rotorwelle von Elektromotoren nach Anspruch 1,3) storage for the rotor shaft of electric motors according to claim 1, dadurch gekennzeichnet, daß bei Oberkopfbetrieb die vom Gebläserad (1) erzeugte Axial kraft größer ist als die Gewichtskraft des Rotors (6).characterized in that the fan wheel when operating overhead (1) generated axial force is greater than the weight of the rotor (6). 130027/0294130027/0294 ORIGINAL INSPECTEDORIGINAL INSPECTED
DE19792951563 1979-12-21 1979-12-21 BEARING FOR THE ROTOR SHAFT OF ELECTRIC MOTORS WITH BLOWING WHEEL Withdrawn DE2951563A1 (en)

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
DK543780A DK543780A (en) 1979-12-21 1980-12-19 RENT FOR THE SHAFT IN ELECTRIC MOTORS WITH BLOWER WHEELS
AT0622580A AT367578B (en) 1979-12-21 1980-12-19 BEARING FOR THE ROTOR SHAFT OF AN ELECTRIC MOTOR
IT8050417A IT8050417A0 (en) 1979-12-21 1980-12-19 SUPPORT FOR THE ROTOR SHAFT OF ELECTRIC MOTORS WITH IMPELLER
NO803893A NO803893L (en) 1979-12-21 1980-12-19 STORAGE FOR ROTOR SHAFT FOR ELECTRIC MOTORS WITH AIRWHEELS

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)

* Cited by examiner, † Cited by third party
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
CN103654615B (en) * 2012-09-11 2017-05-10 天佑电器（苏州）有限公司 Dust collector
CN103654614B (en) * 2012-09-11 2016-11-02 天佑电器（苏州）有限公司 Vacuum cleaner
GB201419229D0 (en) * 2014-10-29 2014-12-10 Skf Ab Bearing device with energy harvesting means

Family Cites Families (7)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
AT367578B (en) 1982-07-12
SE8008643L (en) 1981-06-22
IT8050417A0 (en) 1980-12-19
NO803893L (en) 1981-06-22
FR2472294A1 (en) 1981-06-26
DK543780A (en) 1981-06-22
GB2066584A (en) 1981-07-08
FR2472294B1 (en) 1985-02-15
ATA622580A (en) 1981-11-15
NL8006635A (en) 1981-07-16

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8139 Disposal/non-payment of the annual fee