DE2610362A1 - Plastic centrifugal fan impeller - consists of discs sandwiching blades and connected by screws with exposed ends sealed by plastic discs - Google Patents

Plastic centrifugal fan impeller - consists of discs sandwiching blades and connected by screws with exposed ends sealed by plastic discs

Info

Publication number
DE2610362A1
DE2610362A1 DE19762610362 DE2610362A DE2610362A1 DE 2610362 A1 DE2610362 A1 DE 2610362A1 DE 19762610362 DE19762610362 DE 19762610362 DE 2610362 A DE2610362 A DE 2610362A DE 2610362 A1 DE2610362 A1 DE 2610362A1
Authority
DE
Germany
Prior art keywords
plastic
discs
screws
exposed ends
fan impeller
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Withdrawn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
DE19762610362
Other languages
German (de)
Inventor
Hans Gottler
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.)
Achthal-Maschinenbau-Gmbh 8221 Achthal De
Original Assignee
ACHTHAL MASCHINENBAU GmbH
ACHTHAL-MASCHINENBAU-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 ACHTHAL MASCHINENBAU GmbH, ACHTHAL-MASCHINENBAU-GMBH filed Critical ACHTHAL MASCHINENBAU GmbH
Priority to DE19762610362 priority Critical patent/DE2610362A1/en
Publication of DE2610362A1 publication Critical patent/DE2610362A1/en
Withdrawn legal-status Critical Current

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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis

Landscapes

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

Abstract

The centrifugal fan impeller is made in plastic to handle aggressive media. The impeller consists of two discs (2, 4) which contains the blades (3) between them. The discs (2, 4) are connected with one another by screws and nuts (5) whose exposed ends are sealed off by plastic discs (7, 8). The discs (2, 4) may, alternatively, be connected by wood screws whose exposed ends are similary sealed.

Description

Ventilatorflügelräder aus Kunststoff Plastic fan blades

zur Förderung aggresiver Medien Es sind Fiügelräder aus Kunststoff zur Förderung aggressiver Medien bekannt, die im Spritzverfahren oder in Schweißkonstruktion hergestellt werden. Diese Flügelräder vermögen aber nur eine Umfangsgeschwindigkeit bis zu 50 m/sec. for the promotion of aggressive media There are wing wheels made of plastic known for pumping aggressive media, which are sprayed or welded getting produced. However, these impellers can only have a peripheral speed up to 50 m / sec.

auszuhalten, da sie durch die Zentrifugalkraft überbeansprucht werden und zu Bruch gehen.because they are overstrained by centrifugal force and break.

Aufgabe der Erfindung ist es, Ventilatorflügelräder zu schaffen, die eine wessentlich höhere Umfaugsgeschwindigkeit gestatten.The object of the invention is to provide fan impellers that allow a considerably higher circumnavigation speed.

Erfindungsgemäß wird daher ein Ventilatorflügelrad aus Kunststoff zur Förderung aggressiver Medien in Vorschlag gebracht, welches durch gekennzeichnet ist, daß die Radscheibe, die Schaufeln und die Deckscheibe in gewissen Abständen durch Schrauben miteinander verbunden und daß letztere an den äußeren Enden durch eine obere und eine untere aus kunststoff bestehende Dichtscheibe iiber(leckt sind.According to the invention, therefore, a fan impeller is made of plastic brought forward for the promotion of aggressive media in proposal, which is characterized by is that the Wheel disk, the blades and the cover disk in certain Distances connected by screws and that the latter to the outer Ends by an upper and a lower sealing washer made of plastic (leaks are.

Line Abänderung uer Erfindung kann darin bestehen, daß (iie Radscheibe, die Schaufeln und die Deckscheibe durch zwei gegenüberliegende llolzschrauben miteinander verbunden sind, die gleichfalls durdi aus Kunststoff bestehende Dichtscheiben überdeckt sind.Line modification of the invention can consist in that (iie wheel disc, the blades and the cover disc together by means of two opposing lolzscrews are connected, which is also covered by sealing disks made of plastic are.

Hierdurch wird erreicht, daß die Umfangsgeschwindigkeit der Flügelräder wesentlich - bis zu etwa 70 m/sec. -gesteigert werden kann, so daß dadurch größere Förderleistungen erzielt werden In der Zeichnung sind zwei uusführungsbeispiele veranschaulicht, und zwar zeigen: Fig. 1 und 4 den Querschnitt, Fig. 2 und 5 die Draufsicht und Fig. 3 und 6 einen vergrößerten Teilquerschnitt.This ensures that the peripheral speed of the impellers substantial - up to about 70 m / sec. -can be increased, so that larger The drawing shows two examples 1 and 4 show the cross section, FIGS. 2 and 5 show the Plan view and FIGS. 3 and 6 show an enlarged partial cross-section.

Gemäß den Figuren i bis 3 besteht das aus Kunststoff herzustellende Flügelrad aus der Nabe 1, der lLadscheibe 2, deii Schaufeln 3 und der Deckscheibe 4. Die Hadscheibe und die Deckscheibe sind in gewissen Abständen mit durch das Material der Schaufeln 3 gehende Schrauben mit Muttern 5 fest verbunden. Über den verdeckt liegenden Köpfen der Schrauben bzw. Muttern sind aus Kunststoff bestehende Dichtscheiben 7 bzw. 8 vorgesehen, die mit der Deckscheibe bzw. der Radscheibe verschweißt bzw. verklebt sind. Hierdurch wird gewährleistet, daß das Flügelrad vollständig gegen aggressive Medien geschützt ist.According to the figures i to 3 consists of plastic to be produced Impeller from the hub 1, the loading disk 2, the blades 3 and the cover disk 4. The had disk and the cover disk are at certain intervals firmly connected with screws with nuts 5 going through the material of the blades 3. Over the concealed heads of the screws or nuts are made of plastic existing sealing washers 7 and 8 are provided, which are connected to the cover disk or the wheel disk are welded or glued. This ensures that the impeller is completely protected against aggressive media.

Gemäß den Figuren 4 bis 6 besteht die Abänderung darin, daß statt der Schrauben mit Muttern gegenüberliegende Holzschrauben 6 verwendet werden, die die Teile 2, 3 und 4 1est miteinander verbinden. Auch hierbei sind die Schraubenköpfe durch eine obere und eine untere aus Kunststoff bestehende Dichtscheibe 7, 8 überdeckt, so daß auf das gesamte Flügelrad keine aggressiven Medien einwirken können.According to Figures 4 to 6, the modification is that instead of of screws with nuts opposing wood screws 6 are used, the Connect parts 2, 3 and 4 1est to one another. Here, too, are the screw heads covered by an upper and a lower sealing washer 7, 8 made of plastic, so that no aggressive media can act on the entire impeller.

Damit ein Lösen der Schrauben verhindert wird, werden diese vor dem Einsetzen mit einem Baft- bzw. Klebemittel 9, z,B. Epoxyharz, bestrichen.To prevent the screws from loosening, they are Insertion with a bonding agent 9, e.g. Epoxy resin, painted.

Patentansprüche L e e r s e i t eClaims L e r s e i t e

Claims (2)

P a t e n t a n s p r ü c h e 1. Ventilatorflügelrad aus Kunststoff zur Förderung aggressiver Medien, dadurch gekennzeichnet, daß die adscheibe (2) , uie Schaufeln (3) und ale Deckseheibe (4) in Abständen durch Schrauben itilt muttern (5) miteinander verbunden und daß letztere an den äuLeren Enden durch eine obere und eine untere aus Kunststoff bestehende Dichtscheibe (7, 8) überdeckt sind. P a t e n t a n s p r ü c h e 1. Fan impeller made of plastic for conveying aggressive media, characterized in that the ad disk (2) , uie vanes (3) and all cover washer (4) at intervals with screws itilt nuts (5) connected to each other and that the latter at the outer ends by an upper one and a lower sealing washer (7, 8) made of plastic are covered. 2. Abänderung nach Anspruch 1, dadurch gekennzeichnet, daß die Radscheibe (2), die Schaufeln (3) und die Deckscheibe (4) durch gegenüberliegende Holzschrauben (6) miteinander verbunden sind, die gleichfalls durch aus Kunststoff bestehende Dichtscheiben (7> 8) überdeckt sind.2. Modification according to claim 1, characterized in that the wheel disc (2), the blades (3) and the cover plate (4) by means of opposite wood screws (6) are interconnected, which are also made of plastic Sealing washers (7> 8) are covered.
DE19762610362 1976-03-12 1976-03-12 Plastic centrifugal fan impeller - consists of discs sandwiching blades and connected by screws with exposed ends sealed by plastic discs Withdrawn DE2610362A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19762610362 DE2610362A1 (en) 1976-03-12 1976-03-12 Plastic centrifugal fan impeller - consists of discs sandwiching blades and connected by screws with exposed ends sealed by plastic discs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762610362 DE2610362A1 (en) 1976-03-12 1976-03-12 Plastic centrifugal fan impeller - consists of discs sandwiching blades and connected by screws with exposed ends sealed by plastic discs

Publications (1)

Publication Number Publication Date
DE2610362A1 true DE2610362A1 (en) 1977-09-15

Family

ID=5972255

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762610362 Withdrawn DE2610362A1 (en) 1976-03-12 1976-03-12 Plastic centrifugal fan impeller - consists of discs sandwiching blades and connected by screws with exposed ends sealed by plastic discs

Country Status (1)

Country Link
DE (1) DE2610362A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4236871A (en) * 1978-01-03 1980-12-02 Johnston Brothers (Engineering) Limited Centrifugal fan impellers with blades secured between plates
US4793771A (en) * 1987-11-09 1988-12-27 Laing Karsten A Impeller for spherical pumps
EP0622548A1 (en) * 1993-03-22 1994-11-02 Christoph Sunder-Plassmann Rotor for radial fans
EP0942174A1 (en) * 1998-03-11 1999-09-15 ABB Solyvent Ventec Composite material centrifugal fan rotor
US5984632A (en) * 1996-08-12 1999-11-16 Kwangju Electronics Co., Ltd. Motor fan for a cleaning apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4236871A (en) * 1978-01-03 1980-12-02 Johnston Brothers (Engineering) Limited Centrifugal fan impellers with blades secured between plates
US4793771A (en) * 1987-11-09 1988-12-27 Laing Karsten A Impeller for spherical pumps
EP0622548A1 (en) * 1993-03-22 1994-11-02 Christoph Sunder-Plassmann Rotor for radial fans
US5984632A (en) * 1996-08-12 1999-11-16 Kwangju Electronics Co., Ltd. Motor fan for a cleaning apparatus
EP0942174A1 (en) * 1998-03-11 1999-09-15 ABB Solyvent Ventec Composite material centrifugal fan rotor
WO1999046511A1 (en) * 1998-03-11 1999-09-16 Abb Solyvent-Ventec Composite material centrifugal wheel
FR2776030A1 (en) * 1998-03-11 1999-09-17 Abb Solyvent Ventec CENTRIFUGAL VENTILATION WHEEL IN COMPOSITE MATERIALS
US6402467B1 (en) 1998-03-11 2002-06-11 Abb Solyvent-Ventec Composite material centrifugal wheel

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: ACHTHAL-MASCHINENBAU-GMBH, 8221 ACHTHAL, DE

8139 Disposal/non-payment of the annual fee