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CH501841A - Rotary electric pump with radial air gap - Google Patents

Rotary electric pump with radial air gap

Info

Publication number
CH501841A
CH501841A CH1504168A CH1504168A CH501841A CH 501841 A CH501841 A CH 501841A CH 1504168 A CH1504168 A CH 1504168A CH 1504168 A CH1504168 A CH 1504168A CH 501841 A CH501841 A CH 501841A
Authority
CH
Switzerland
Prior art keywords
electric pump
rotary electric
air gap
armature
radial air
Prior art date
Application number
CH1504168A
Other languages
French (fr)
Inventor
Bertrant Edmond
Original Assignee
Unelec
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
Priority claimed from FR52949A external-priority patent/FR1502641A/en
Priority claimed from FR124959A external-priority patent/FR93764E/en
Priority claimed from FR132150A external-priority patent/FR93781E/en
Application filed by Unelec filed Critical Unelec
Publication of CH501841A publication Critical patent/CH501841A/en

Links

Classifications

    • 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
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
    • H02K5/1282—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs the partition wall in the air-gap being non cylindrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0666—Units comprising pumps and their driving means the pump being electrically driven the motor being of the plane gap type
    • 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
    • H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • H02K5/1677—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
    • 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
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

  

      Electropompe    rotative à entrefer     radial       Le brevet     principal    a pour objet une     électropompe     rotative comportant un rotor entraîné par un moteur  asynchrone à entrefer radial, dans lequel les parties  tournantes sont supportées par un coussinet unique  lubrifié par le liquide de circulation.  



  L'induit du moteur est constitué d'un     circuit     magnétique et d'une cage d'écureuil, enfermés tous       deux    dans une chemise en alliage de cuivre.  



       L'électropompe    rotative selon l'invention est carac  térisée par le fait que la partie magnétique et la cage  d'écureuil sont     entièrment    recouvertes d'une chemise  en acier inoxydable.  



  Une forme d'exécution de l'objet de l'invention  sera décrite, à titre d'exemple, en se référant au dessin  annexé sur lequel la figure unique est une vue en  coupe de cette     forme    d'exécution.  



  L'induit du moteur représenté comporte un     circuit     magnétique 1 en tôle roulée dans laquelle les encoches  sont préalablement découpées; la cage d'écureuil 2 est  en aluminium coulé sous pression.  



  Pour éviter toute corrosion, l'ensemble circuit  magnétique et cage d'écureuil est parfaitement isolé  par rapport au fluide véhiculé.  



  Une chemise en acier inoxydable est constituée de  deux pièces 3 et 4 embouties. Les joints 5 et 6 sont en  caoutchouc.  



  Après mise en place de ces joints, un sertissage à  la presse des arêtes 7 et 8 de la coupelle 3 permet  d'obtenir une étanchéité parfaite par pression de la tôle  inoxydable sur le caoutchouc. La     forme    des pièces  embouties 3 et 4 est spécialement déterminée pour  obtenir un contact régulier sur le circuit magnétique; la  surface délimitant l'entrefer 9 reste parfaitement plane  en cours de fonctionnement, sa dureté étant supérieure  à 120     kg/mm2.       Cette dureté est obtenue au cours des diverses  passes     d'emboutissage    de la coupelle 3 dans le cas du  rotor représenté avec une tôle d'épaisseur 0,3 mm en  acier 18-8.



      Rotary electric pump with radial air gap The main patent relates to a rotary electric pump comprising a rotor driven by an asynchronous motor with radial air gap, in which the rotating parts are supported by a single bearing lubricated by the circulating liquid.



  The motor armature consists of a magnetic circuit and a squirrel cage, both enclosed in a copper alloy jacket.



       The rotary electric pump according to the invention is charac terized in that the magnetic part and the squirrel cage are entirely covered with a stainless steel jacket.



  An embodiment of the object of the invention will be described, by way of example, with reference to the appended drawing in which the single figure is a view in section of this embodiment.



  The armature of the motor shown comprises a magnetic circuit 1 of rolled sheet metal in which the notches are cut beforehand; squirrel cage 2 is made of die-cast aluminum.



  To avoid any corrosion, the magnetic circuit and squirrel cage assembly is perfectly insulated from the fluid conveyed.



  A stainless steel jacket consists of two stamped parts 3 and 4. Seals 5 and 6 are made of rubber.



  After these gaskets have been put in place, crimping the edges 7 and 8 of the cup 3 with a press makes it possible to obtain a perfect seal by pressing the stainless steel sheet onto the rubber. The shape of the stamped parts 3 and 4 is specially determined to obtain regular contact on the magnetic circuit; the surface delimiting the air gap 9 remains perfectly flat during operation, its hardness being greater than 120 kg / mm2. This hardness is obtained during the various stamping passes of the cup 3 in the case of the rotor shown with a 0.3 mm thick sheet made of 18-8 steel.

Claims (1)

REVENDICATION Electropompe rotative selon la revendication du brevet principal, caractérisé par le fait que la partie magnétique et la cage d'écureuil de l'induit sont entiè rement recouvertes d'une chemise en acier inoxydable. SOUS-REVENDICATIONS 1. Electropompe suivant la revendication, caracté risée par le fait que la chemise recouvrant l'induit est constituée de deux pièces emboîtées l'une dans l'autre, dont au moins une a une forme de coupelle. CLAIM Rotary electric pump according to claim of the main patent, characterized by the fact that the magnetic part and the squirrel cage of the armature are entirely covered with a stainless steel jacket. SUB-CLAIMS 1. Electropump according to claim, characterized in that the jacket covering the armature consists of two parts fitted into one another, at least one of which has the shape of a cup. 2. Electropompe suivant la sous-revendication 1, caractérisée par le fait que des joints en caoutchouc sont disposés à l'intérieur de la chemise le long des surfaces de raccordement des deux pièces emboîtées l'une dans l'autre. 3. Electropompe suivant la sous-revendication 2, caractérisée par le fait que les deux pièces emboîtées sont assemblées par sertissage sur les joints. 2. Electropump according to sub-claim 1, characterized in that the rubber seals are arranged inside the jacket along the connecting surfaces of the two pieces fitted into one another. 3. Electric pump according to sub-claim 2, characterized in that the two nested parts are assembled by crimping on the joints. 4. Electropompe suivant la revendication, caracté risée par le fait que la surface de l'induit dans l'en- trefer est plane et indéformable, la dureté de la che mise étant supérieure à 120 kg/mm'. 4. Electropump according to claim, characterized in that the surface of the armature in the cavity is flat and undeformable, the hardness of the plug being greater than 120 kg / mm '.
CH1504168A 1966-03-10 1968-10-08 Rotary electric pump with radial air gap CH501841A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR52949A FR1502641A (en) 1966-03-10 1966-03-10 Rotary electric pump with radial air gap
FR124959A FR93764E (en) 1966-03-10 1967-10-18 Rotary electric pump with radial air gap.
FR132150A FR93781E (en) 1966-03-10 1967-12-13 Rotary electric pump with radial air gap.

Publications (1)

Publication Number Publication Date
CH501841A true CH501841A (en) 1971-01-15

Family

ID=27242983

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1504168A CH501841A (en) 1966-03-10 1968-10-08 Rotary electric pump with radial air gap

Country Status (1)

Country Link
CH (1) CH501841A (en)

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Legal Events

Date Code Title Description
PL Patent ceased