EP0165486B1 - Dispositif de montage flottant du carter d'une pompe centrifuge à un moteur éléctrique - Google Patents

Dispositif de montage flottant du carter d'une pompe centrifuge à un moteur éléctrique Download PDF

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Publication number
EP0165486B1
EP0165486B1 EP85106154A EP85106154A EP0165486B1 EP 0165486 B1 EP0165486 B1 EP 0165486B1 EP 85106154 A EP85106154 A EP 85106154A EP 85106154 A EP85106154 A EP 85106154A EP 0165486 B1 EP0165486 B1 EP 0165486B1
Authority
EP
European Patent Office
Prior art keywords
pump
bearing
casing
electric motor
bearing plate
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.)
Expired
Application number
EP85106154A
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German (de)
English (en)
Other versions
EP0165486A2 (fr
EP0165486A3 (en
Inventor
Klaus Peter Manok
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.)
Individual
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Individual
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6767189&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0165486(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to AT85106154T priority Critical patent/ATE48027T1/de
Publication of EP0165486A2 publication Critical patent/EP0165486A2/fr
Publication of EP0165486A3 publication Critical patent/EP0165486A3/de
Application granted granted Critical
Publication of EP0165486B1 publication Critical patent/EP0165486B1/fr
Expired legal-status Critical Current

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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
    • F04D29/049—Roller bearings
    • 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
    • F04D29/044—Arrangements for joining or assembling shafts
    • 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
    • F04D29/0462—Bearing cartridges
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps

Definitions

  • the invention relates to a device for the flying arrangement and fastening of a centrifugal pump housing to an electric motor according to the preamble of claim 1.
  • a device of the type mentioned at the outset is used, for example, whenever centrifugal pumps for conveying tasks in the food and beverage sector have to be arranged and attached to a standardized or standardized electric motor.
  • the pumping tasks and the internal and external cleaning procedures on the pump usually require a pump made of corrosion-resistant steel. Since the pump-side motor part should have approximately the same corrosion resistance as the pump housing, and standardized or standardized electric motors do not have this material property in the area of their end shield, the known device, in addition to its connecting function, also has the function of a protective shield shielding the pump-side motor part. It is therefore made of corrosion-resistant steel, just like the drive shaft led out of the electric motor.
  • the construction of the pump and drive motor in a closed unit is generally known in the art as a block pump.
  • the drive motor is flanged to the pump housing with the insertion of an intermediate piece, the extended motor shaft with the centrifugal rotor also serving as the pump shaft.
  • the motor bearing on the pump side replaces the pump bearings.
  • the intermediate piece on the pump side is designed such that it can accommodate the shaft seal of the pump. If the conveying task requires it, the intermediate piece, like the pump, is therefore made of corrosion-resistant material (cf. H. Schulz "Die Pumpen”, 13th edition, Springer-Verlag Berlin / Heidelberg / New York, 1977, pages 221 222 Fig. 46.2).
  • FR-A-2 316 457 Another device of the type identified in the introduction is previously known from FR-A-2 316 457.
  • the pump housing has its own housing part receiving the shaft seal.
  • the intermediate piece takes on the one hand the connection between the motor and the pump housing and on the other hand it serves as a bearing on the motor side of the pump shaft.
  • the pump shaft ends in the area of the aforementioned bearing and is designed there as a hollow shaft into which the motor shaft is inserted in a form-fitting manner.
  • the task is also to be solved with an electric motor which, with the exception of its pump-side bearing shield, consists of a standardized or standardized, unchanged and therefore inexpensive family of parts.
  • the object is achieved in that the end shield of the electric motor facing the pump is connected in one piece to the housing of the pump-side bearing and in one piece with a lantern housing.
  • the device can be made extremely compact, in particular in the axial direction to save space.
  • the lantern housing has a lower lantern opening at least on the underside in order to discharge leaks in the installed position of the end shield.
  • the device according to the invention may be advantageous to design as a welded construction from the simplest possible geometrical basic bodies or as a cast construction or as a combined cast and welded construction.
  • a further advantageous embodiment of the device according to the invention permits adjustment and non-rotatable mounting of a Cover of the electric motor on the pump end shield.
  • a Cover of the electric motor on the pump end shield.
  • the pump-side sealing of a roller bearing is particularly simple and therefore inexpensive if, according to a further advantageous embodiment of the device according to the invention, a pump-side bearing cover is axially clamped between the roller bearing and the bearing housing within a bearing bore, which covers a shaft with play and from one to the latter co-arranged thrower ring is sealingly contacted.
  • a centrifugal pump housing 3 (FIG. 1) is arranged on an electric motor 2 by means of a device 1 according to the invention and fastened to it. Two feet, not specified, on the device 1 and a third foot on the electric motor 2 carry the entire pump unit. A cover 4 is placed over the entire electric motor 2, which covers part of the device 1 and is supported on it at the same time.
  • the device according to the invention is designed as an example of a welded construction in FIG. It consists essentially of a plate-shaped bearing plate 1 a, which is centered and fixed via a bearing plate recess 1 m on a motor recess 2 a on the housing of the electric motor 2, a bearing housing 1 b, a lantern housing 1 d and a provision 1 c, 1 g, 1 h for the non-positive connection with a cylindrical seal housing 3a of a pump housing 3.
  • the bearing housing 1 is sleeve-shaped in the area of the end shield 1 and is centered within a central end shield bore 1p over its outer lateral surface.
  • An unspecified collar of the bearing housing 1b rests on the pump-side end face of the end shield 1a and is welded to it all around via a weld 1r.
  • the lantern housing 1d and, in its continuation, a terminal housing 1c adjoin the aforementioned collar.
  • the lantern housing 1d has openings on its upper and lower sides, an upper and a lower lantern opening 1e and 1f.
  • the clamp housing 1c is completely slotted on its underside into the lower lantern opening 1f.
  • a likewise slotted, horseshoe-shaped clamping part 1g is in each case welded to the opposite ends of the clamping housing 1c in such a way that it bridges the slot thereof, so that the clamping housing 1c and the clamping part 1g together result in a closed contour.
  • the two legs of the clamping part 1g are provided with a hole 1 h for a connecting means, whereby a receiving hole 1k formed by the clamping housing 1c can be radially reduced within narrow limits.
  • the elastic deformability of the clamp housing 1c in the region of the clamp part 1g is promoted by the lower lantern opening 1f.
  • the fastening of the seal housing 3a of the pump housing 3 within the receiving bore 1k is ensured in the exemplary embodiment exclusively by a non-positive connection.
  • the end shield 1 a is equipped on its outer edge outside its end shield recess 1 m with a plurality of flange bores 1 n distributed over its circumference. They serve to accommodate connecting means, not shown and designated, by means of which the end shield 1a is fastened directly to the housing of the electric motor 2.
  • two foot brackets 1q are welded, each of which axially adjustable a foot 12 in a free end face via a threaded bolt 13 and lockable via a lock nut 11.
  • the bearing housing 1 b is provided with a central bearing bore 1, the pump side within the Lagerge housing 1b is limited by a collar and reduced to an unspecified through hole for a shaft 5.
  • roller bearing 7 designed as a fixed bearing, the outer ring of which is fixed between a bearing cover 6 fastened to the bearing housing 1b and a bearing cover 9 on the pump side which surrounds the shaft 5 with play on the inside and abuts the bearing bore 1i which is delimited on the outside.
  • a displacement of the shaft 5 in the direction of the pump housing 3 is prevented by a shaft collar 5 a, which bears against the inner ring of the roller bearing 7.
  • the motor-side bearing cover 6 is screwed to the bearing housing 1b via connecting means, not shown and designated, which are accommodated in the bearing housing bores 10. It has a recess 6a facing the roller bearing 7, in which a shaft seal 8 is arranged.
  • the shaft sealing on the pump side takes place via a splash ring 10 which is arranged on the shaft 5 and which makes sealing contact with the bearing cover 9 on the pump side.
  • the device according to the invention may be advantageous to produce it as a cast part or as a combination of a cast and welded part.
  • the bearing plate 1a and bearing housing 1b are designed as a cast or forged part, while lantern and clamp housings 1d and 1c are made from a tubular semi-finished product and then welded to the above-mentioned cast or forged part. The final machining is then carried out on the composite construction.
  • the lantern housing necessary between the electric motor and the pump housing is already formed directly on the pump housing, the lantern housing can be dispensed with in the device according to the invention.
  • the arrangement for positive and / or non-positive connection with the pump housing is located directly on the end shield.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Feeding And Controlling Fuel (AREA)

Claims (9)

1. Dispositif pour montage et fixation flottante d'un carter de pompe centrifuge à un moteur électrique, au moyen d'une pièce intermédiaire qui sépare de la pompe aussi bien le fluide à pomper par le moteur que les milieux se trouvent dans le moteur, la pièce intermédiaire étant faite dans un matériau résistant à la corrosion et étant centrée, du côté de l'entraînement, par l'intermédiaire d'un premier évidement d'un flasque formant palier du moteur électrique, et fixée par des moyens d'attache, et étant centrée du côté de la pompe par l'intermédiaire d'un deuxième évidement du carter de pompe, et fixée grâce à un moyen mécanique et/ou dynamique, caractérisé en ce que le flasque formant palier, tourné vers la pompe, du moteur électrique est d'une seule pièce avec le carter (1b) du palier situé du côté de la pompe, et d'une seule pièce avec un boîtier de lanterne (1d).
2. Dispositif selon la revendication 1, caractérisé en ce que le boîtier de lanterne (1d) présente, dans la position de l'installation du flasque formant palier (1e), au moins une ouverture de lanterne inférieure (1f).
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'il est construit comme une structure soudée de corps fondamentaux géométriques les plus simples possibles.
4. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'il est constitué par une pièce coulée.
5. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'il est constitué par une structure combinée, coulée et soudée.
6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce qu'il est fabriqué dans le même matériau que le carter de pompe (3).
7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce qu'il est prévu, sur le côté du flasque formant palier (1a) tourné vers le carter de pompe (3), un épaulement cylindrique central (1b) et, dans la partie inférieure du flasque, deux boulons écartés l'un de l'autre, situés an dehors de l'épaulement cylindrique et faisant saillie au-dessus de la surface de réception formée par la face frontale du flasque.
8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que, dans la position de l'installation du flasque (la) formant palier, deux béquilles (1q) sont disposées et fixées à son côté inférieur, et en ce que, sur une face frontale libre de béquille, on peut monter un pied (12) qu'on peut déplacer dans le sens axial grâce à un boulon fileté (13) et immobiliser grâce à un contre- écrou (11).
9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce qu'il est prévu un chapeau de palier (9) du côté de la pompe, serré axialement entre un palier à roulement (7) et le carter de palier (1b) à l'intérieur d'un alésage de roulement (11), ledit chapeau enfermant un arbre (5) avec eu et étant en contact étanche avec une bague de projection (10), montée pour tourner avec l'arbre sur ce dernier.
EP85106154A 1984-05-23 1985-05-20 Dispositif de montage flottant du carter d'une pompe centrifuge à un moteur éléctrique Expired EP0165486B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85106154T ATE48027T1 (de) 1984-05-23 1985-05-20 Vorrichtung zur fliegenden anordnung und befestigung eines kreisel-pumpengehaeuses an eine antriebsvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8415722U DE8415722U1 (de) 1984-05-23 1984-05-23 Vorrichtung zur fliegenden Anordnung und Befestigung eines Pumpengehäuses an eine Antriebsvorrichtung
DE8415722U 1984-05-23

Publications (3)

Publication Number Publication Date
EP0165486A2 EP0165486A2 (fr) 1985-12-27
EP0165486A3 EP0165486A3 (en) 1987-05-27
EP0165486B1 true EP0165486B1 (fr) 1989-11-15

Family

ID=6767189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85106154A Expired EP0165486B1 (fr) 1984-05-23 1985-05-20 Dispositif de montage flottant du carter d'une pompe centrifuge à un moteur éléctrique

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Country Link
EP (1) EP0165486B1 (fr)
AT (1) ATE48027T1 (fr)
DE (2) DE8415722U1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1435400A (en) * 1921-07-25 1922-11-14 Mahlon E Layne Electric drive mechanism for rotary well pumps
US3433164A (en) * 1967-03-03 1969-03-18 Buffalo Forge Co Motor-pump unit
DE2529458C2 (de) * 1975-07-02 1982-11-18 Sihi Gmbh & Co Kg, 2210 Itzehoe Kreiselpumpenaggregat

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Hellmuth Schulz: "Die Pumpen", 13.Auflage 1977 Springer Verlag Seiten 220-223 *

Also Published As

Publication number Publication date
EP0165486A2 (fr) 1985-12-27
DE8415722U1 (de) 1985-07-11
DE3574275D1 (en) 1989-12-21
EP0165486A3 (en) 1987-05-27
ATE48027T1 (de) 1989-12-15

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