DE2729926A1 - BLOW WHEEL FOR BLOW WHEEL MILLS - Google Patents

BLOW WHEEL FOR BLOW WHEEL MILLS

Info

Publication number
DE2729926A1
DE2729926A1 DE19772729926 DE2729926A DE2729926A1 DE 2729926 A1 DE2729926 A1 DE 2729926A1 DE 19772729926 DE19772729926 DE 19772729926 DE 2729926 A DE2729926 A DE 2729926A DE 2729926 A1 DE2729926 A1 DE 2729926A1
Authority
DE
Germany
Prior art keywords
hub
webs
blow wheel
mills
edges
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.)
Granted
Application number
DE19772729926
Other languages
German (de)
Other versions
DE2729926B2 (en
DE2729926C3 (en
Inventor
Ernst Ing Schneller
Richard Dipl Ing Wagner
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.)
GE Power Systems GmbH
Original Assignee
EVT Energie und Verfahrenstechnick 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 EVT Energie und Verfahrenstechnick GmbH filed Critical EVT Energie und Verfahrenstechnick GmbH
Priority to DE19772729926 priority Critical patent/DE2729926C3/en
Priority to GR56218A priority patent/GR62417B/en
Priority to YU120778A priority patent/YU39286B/en
Priority to TR1996978A priority patent/TR19969A/en
Priority to FR7818461A priority patent/FR2395781A1/en
Priority to HUEE002582 priority patent/HU177191B/en
Priority to CS435778A priority patent/CS205128B2/en
Priority to AT478478A priority patent/AT356488B/en
Priority to PL20807678A priority patent/PL114385B1/en
Publication of DE2729926A1 publication Critical patent/DE2729926A1/en
Publication of DE2729926B2 publication Critical patent/DE2729926B2/en
Application granted granted Critical
Publication of DE2729926C3 publication Critical patent/DE2729926C3/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Structure Of Transmissions (AREA)
  • Paper (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Description

Schlagrad für SchlagradmühlenBeater wheel for beater mills

Die Erfindung betrifft ein Schlagrad für Schlagradmühlen mit durch Stege miteinander verbundenen Naben- und Ringscheiben und auswechselbaren Schlagplatten, wobei die Naben- und Ringscheiben mit nach innen vorstehenden ringförmigen Rändern versehen sind.The invention relates to a beater wheel for beater mills with hub and ring disks connected to one another by webs and replaceable striking plates, the hub and ring washers with inwardly protruding annular rims are provided.

Ein derartiges Schlagrad ist in der DT PS 10 47 586 beschrieben. Beim Betrieb von Schlagradmühlen mit Schlagrädern dieser Art hat sich gezeigt, daß Verformungen der Stegflanschen und Risse in den Stegen auftreten. Die Verformung der Stegflanschen wird durch die Fliehkräfte verursacht, die auf eine kleine Auflagefläche zwischen Stegflanschen und den Rändern der Ring- und Nabenscheiben einwirken. Die Risse werden im wesentlichen durch die Drehmomente hervorgerufen, die infolge der einseitigen Lage der Schlagplatten zum Stegschwerpunkt entstehen.Such an impact wheel is described in DT PS 10 47 586. When operating beater mills with beater wheels of this type it has been shown that deformations of the web flanges and cracks occur in the webs. The deformation of the web flanges will caused by centrifugal forces acting on a small contact surface act between the web flanges and the edges of the ring and hub disks. The cracks are essentially through caused the torques that arise as a result of the one-sided position of the striking plates in relation to the center of gravity of the web.

Aufgabe der Erfindung ist es, diese Nachteile des bekannten Schlagrades zu beseitigen und ein Schlagrad zu schaffen, bei dem die Stegfliehkräfte auf relativ großen Flächen der Ränder der Naben- und Ringscheiben übertragen werden.The object of the invention is to eliminate these disadvantages of the known impact wheel and to create a impact wheel in which the web centrifugal forces are transmitted to relatively large areas of the edges of the hub and ring disks.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß jeweils zwei in Umfangsrichtung hintereinander liegenden Stege gemeinsame seitliche Flanschen besitzen, die nach außen hin an den Rändern der Naben- und Ringscheiben anliegen. Die Fliehkräfte werden dadurch auf eine größere Auflagefläche zwischen den Stegflanschen und den Rändern der Ring- und Nabenscheiben verteilt; dadurch ist die Flächenpressung reduziert, so daß eine Verformung der Stegflanschen vermieden wird. Außerdem wird durch die Zusammenfassung zweier Stege durch gemeinsame seitliche Flanschen die Beanspruchung der Stege durch die Drehmomente weitgehend herabgesetzt und die Gefahr, daß Risse in den Stegen auftreten, vermindert.According to the invention, this object is achieved in that in each case two webs lying one behind the other in the circumferential direction common have lateral flanges that rest outwardly on the edges of the hub and ring disks. The centrifugal forces are thereby distributed over a larger contact surface between the web flanges and the edges of the ring and hub disks; this reduces the surface pressure so that deformation of the web flanges is avoided. In addition, through the combination of two webs by common lateral flanges largely reduces the stress on the webs due to the torques and the risk of cracks occurring in the webs is reduced.

809881 /0696809881/0696

In der Zeichnung und der zugehörigen Beschreibung ist die Erfindung erläutert.The invention is explained in the drawing and the associated description.

Es zeigen:Show it:

Fig. 1 eine Ansicht mit teilweisem Schnitt des SchladradesFig. 1 is a view with a partial section of the Schladrades

Fig. 2 einen Schnitt nach der Linie A-B der Fig. 1FIG. 2 shows a section along the line A-B of FIG. 1

Die Schlagradnabenscheibe 1 ist durch zwölf Stege 2 mit der Ringscheibe 3 fest verbunden. Jeweils zwei in Umfangsrichtung hintereinander liegende Stege 2 besitzen gemeinsame seitliche Flanschen 4, die an die Ränder 7 der Naben- und Ringscheiben 1,3 anliegen. Zwischen den Flanschen 4 der Naben- und Ringscheiben 1/3 sind die Panzerbleche 5 angeordnet. Ebenfalls zwischen den Stegen 2 sind die Flanschen 4 mit den Panzerblechen 6 versehen.The impact wheel hub disk 1 is firmly connected to the annular disk 3 by twelve webs 2. Two each in the circumferential direction webs 2 lying one behind the other have common lateral flanges 4, which are attached to the edges 7 of the hub and ring disks 1.3 are applied. The armor plates 5 are arranged between the flanges 4 of the hub and ring disks 1/3. Likewise between the webs 2, the flanges 4 are provided with the armor plates 6.

809881 /0596809881/0596

L ο e r s ο ι I eL ο e r s ο ι I e

Claims (1)

PatentanspruchClaim Schlagrad für Schlagradmuhlen mit durch Stege miteinander verbundenen Naben- und Ringscheiben und auswechselbaren Schlagplatten, wobei die Naben- und Ringscheiben mit nach innen vorstehenden ringförmigen Rändern versehen sind, dadurch gekennzeichnet, daß jeweils zwei in Umfangsrichtung hintereinander liegende Stege (2) gemeinsame seitliche Flanschen (4) besitzen, die nach außen hin an den Rändern der Naben- und Ringscheiben (1,3) anliegen.Beater wheel for beater mills with one another through webs connected hub and ring disks and replaceable impact plates, the hub and ring disks with after inside protruding annular edges are provided, characterized in that two in each case in the circumferential direction webs (2) lying one behind the other have common lateral flanges (4) which are attached to the outside Make contact with the edges of the hub and ring disks (1,3). 809881 /0596 ORIGINAL INSPECTED809881/0596 ORIGINAL INSPECTED
DE19772729926 1977-07-02 1977-07-02 Beater wheel for beater mills Expired DE2729926C3 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DE19772729926 DE2729926C3 (en) 1977-07-02 1977-07-02 Beater wheel for beater mills
GR56218A GR62417B (en) 1977-07-02 1978-05-12 Beater wheel for mills of beater wheels
YU120778A YU39286B (en) 1977-07-02 1978-05-18 Striking rotor of mills for grinding by means of a striking rotor
TR1996978A TR19969A (en) 1977-07-02 1978-06-15 SPECIAL CARPMA CARK FOR CAMARKA CARKLI MILLERS
FR7818461A FR2395781A1 (en) 1977-07-02 1978-06-20 Beater mill runner wheel - has hub and annular discs connected in pairs by webs with common lateral flanges
HUEE002582 HU177191B (en) 1977-07-02 1978-06-22 Beating wheel for mill of beating wheel
CS435778A CS205128B2 (en) 1977-07-02 1978-06-30 Impact wheel for the impact wheel mills
AT478478A AT356488B (en) 1977-07-02 1978-06-30 WHEEL WHEEL FOR WHEEL MILLS
PL20807678A PL114385B1 (en) 1977-07-02 1978-07-01 Beating wheel for centrifugal impact mills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772729926 DE2729926C3 (en) 1977-07-02 1977-07-02 Beater wheel for beater mills

Publications (3)

Publication Number Publication Date
DE2729926A1 true DE2729926A1 (en) 1979-01-04
DE2729926B2 DE2729926B2 (en) 1979-04-26
DE2729926C3 DE2729926C3 (en) 1979-12-20

Family

ID=6012986

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772729926 Expired DE2729926C3 (en) 1977-07-02 1977-07-02 Beater wheel for beater mills

Country Status (9)

Country Link
AT (1) AT356488B (en)
CS (1) CS205128B2 (en)
DE (1) DE2729926C3 (en)
FR (1) FR2395781A1 (en)
GR (1) GR62417B (en)
HU (1) HU177191B (en)
PL (1) PL114385B1 (en)
TR (1) TR19969A (en)
YU (1) YU39286B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419499A (en) * 1991-02-15 1995-05-30 Bourne; Ronald F. Treatment of particulate material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047586B (en) * 1957-07-09 1958-12-24 Dampferzeuger Veb Beater wheel for beater mills

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419499A (en) * 1991-02-15 1995-05-30 Bourne; Ronald F. Treatment of particulate material

Also Published As

Publication number Publication date
AT356488B (en) 1980-04-25
PL114385B1 (en) 1981-01-31
GR62417B (en) 1979-04-11
FR2395781B1 (en) 1984-07-27
HU177191B (en) 1981-08-28
DE2729926B2 (en) 1979-04-26
TR19969A (en) 1980-06-02
FR2395781A1 (en) 1979-01-26
CS205128B2 (en) 1981-04-30
ATA478478A (en) 1979-09-15
DE2729926C3 (en) 1979-12-20
YU120778A (en) 1982-06-30
YU39286B (en) 1984-10-31
PL208076A1 (en) 1979-03-12

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Legal Events

Date Code Title Description
OAP Request for examination filed
OD Request for examination
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee