WO2014044797A2 - Disposition d'une dent de broyage sur un cylindre broyeur d'un broyeur a cylindres - Google Patents

Disposition d'une dent de broyage sur un cylindre broyeur d'un broyeur a cylindres Download PDF

Info

Publication number
WO2014044797A2
WO2014044797A2 PCT/EP2013/069574 EP2013069574W WO2014044797A2 WO 2014044797 A2 WO2014044797 A2 WO 2014044797A2 EP 2013069574 W EP2013069574 W EP 2013069574W WO 2014044797 A2 WO2014044797 A2 WO 2014044797A2
Authority
WO
WIPO (PCT)
Prior art keywords
tooth
crushing
clamping sleeve
opening
receptacle
Prior art date
Application number
PCT/EP2013/069574
Other languages
German (de)
English (en)
Other versions
WO2014044797A3 (fr
Inventor
Piotr SZCZELINA
Shariatzadeh KHEZR
Original Assignee
Thyssenkrupp Resource Technologies 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 Thyssenkrupp Resource Technologies Gmbh filed Critical Thyssenkrupp Resource Technologies Gmbh
Priority to EP13766273.0A priority Critical patent/EP2897733B1/fr
Priority to CN201380060619.5A priority patent/CN104797342B/zh
Priority to EA201590514A priority patent/EA029248B1/ru
Priority to BR112015006148-6A priority patent/BR112015006148B1/pt
Priority to AU2013320199A priority patent/AU2013320199B2/en
Priority to DK13766273.0T priority patent/DK2897733T3/en
Publication of WO2014044797A2 publication Critical patent/WO2014044797A2/fr
Publication of WO2014044797A3 publication Critical patent/WO2014044797A3/fr

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
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers

Definitions

  • the present invention relates to an arrangement of a crushing tooth on a crushing roll of a roll crusher, wherein a tooth receptacle having an opening is arranged on the crushing roll, into which the crushing tooth can be inserted and held receivable. Furthermore, the invention is directed to a method for arranging a crushing tooth on a crushing roller of a roll crusher.
  • Roll crushers are used for breaking or crushing crushed material or other materials, and may also be referred to as sizers according to their type.
  • the basic structure of a roll crusher has at least two counter-rotating crushing rollers, and between the crushing rollers, a crushing gap is formed, in which the crushed material or material to be crushed or crushed is fed.
  • On the outer circumference of the crushing rollers several crushing teeth are arranged, which in tooth receptacles holding recorded and are arranged on the crushing roller. The crushing teeth directly break or grasp the material and pull it into the gap between the crushing rollers.
  • DE 41 23 967 A1 shows the arrangement of crushing teeth on a crushing roller, and on the crushing rollers tooth carrier in the form of crushing plates are arranged, which form a respective tooth receptacle with an opening.
  • the crushing tooth has a shaft in the form of a pin, which projects into the opening in the tooth receptacle and is keyed with a wedge element in the opening of the tooth receptacle.
  • the invention includes the technical teaching that a clamping sleeve is provided, in which a shank of the crushing tooth is received under radial tension of the clamping sleeve in the opening.
  • a clamping sleeve By using a clamping sleeve, a further component is provided for fastening the crushing tooth in the tooth receptacle, which on the other hand has a degree of freedom of movement for tooth picking on the one hand and for the breaking tooth on the other hand.
  • the particular advantage of using the clamping sleeve is that it can be drawn or pressed into a gap between the shank of the crushing tooth and the opening in the tooth receptacle, while the crushing tooth is already seated in the opening of the tooth receptacle.
  • the crushing tooth may have a tooth head, which is formed with an abutment collar for abutment on an abutment edge enclosing the opening on the tooth receptacle.
  • Crushing forces in the operation of the roll crusher act on the tooth tip on the crushing tooth, and since the tooth head rests with the abutment collar on the abutment edge of the tooth holder, a direct derivation of the crushing forces from the tooth head into the tooth holder, without the actual attachment of the crushing tooth in the teeth recording mechanically strain.
  • the shaft which is located on the underside of the tooth head and protrudes into the opening of the tooth socket, is therefore only minimally mechanically loaded by the crushing forces under normal load of the crushing tooth on the tooth head.
  • the clamping sleeve braces the crushing tooth in the tooth holder, that the abutment collar of the tooth head is pressed onto the abutment edge of the tooth holder, and the arrangement of Crushing tooth in the tooth holder thus has a very high mechanical rigidity due to the large contact surface between the abutment collar and the abutment edge.
  • the clamping sleeve may have a conical receptacle in which a likewise conical shaft of the crushing tooth is seated.
  • the opening in the tooth receptacle may be formed by a cylindrical bore, wherein the clamping sleeve has a cylindrical outer contour with which it is seated in the opening.
  • the outer diameter of the clamping sleeve can correspond to the diameter of the opening in the tooth holder.
  • the shaft of the crushing tooth can be made cylindrical, and the clamping sleeve can have a cylindrical receptacle, in which the shank of the crushing tooth can be seated.
  • the clamping sleeve can be designed on the outside conical, and the opening in the tooth receptacle can be a conical opening into which the conical clamping sleeve can be retracted.
  • the result is an equally effective arrangement of the clamping sleeve between the shaft of the crushing tooth and the tooth holder based on a respect to the overall arrangement also conical clamping receptacle.
  • the cone of the shank and the receptacle in the clamping sleeve may have a cone angle which has a value between, for example, 0.2 ° to 10 °, preferably a value between 1 ° to 5 ° and particularly preferably a value of 2 °.
  • the cone angles can be such that the clamping sleeve holds the shaft of the crushing tooth in the opening of the tooth receptacle in a self-holding manner.
  • securing means are required to hold the clamping sleeve in their arrangement between the shaft of the crushing tooth and the tooth holder.
  • the clamping sleeve can be designed slotted, so that no larger tangential stresses can build up in the clamping sleeve, which would counteract the bracing effect for clamping the shank of the crushing tooth in the clamping sleeve.
  • the clamping sleeve for example have one or more slots extending through the latter in a longitudinal direction of the clamping sleeve at least partially therethrough.
  • a screw element can be provided which is screwed to a screw shaft in the breaking tooth and is seated in the clamping sleeve with a screw head in a screw receptacle.
  • the longitudinal direction of the clamping sleeve may form the axis of rotation of the opening in the tooth receptacle, and the longitudinal direction may extend approximately tangentially spaced from the crushing roller.
  • the tooth receptacle can be arranged radially projecting on the crushing roller and in particular integrally formed on this or materially connected thereto.
  • crushing plates which can be screwed onto the outer circumference of the crushing roller, and which have the tooth holder.
  • the tooth holder itself can also be connected directly to the body of the crushing roller, for example with a welded connection or with a screw connection.
  • the radially encircling seat of the crushing tooth in the tooth receptacle can have at at least one point a form-fit region which, for example, adjoins the inner region of the abutment edge.
  • the positive connection can be achieved by a securing flank, a multiple toothing or, for example, by a square or a polygon, which forms the receiving opening of the tooth receptacle in the form-locking region shown.
  • the invention is further directed to a method for arranging a crushing tooth on a crushing roller of a roll crusher, wherein on the crushing roller a tooth holder is arranged with an opening into which the crushing tooth is introduced, wherein a clamping sleeve is provided, in which a shank of the crushing tooth radial bias of the clamping sleeve is pulled into the opening.
  • a clamping device may be provided, with which the preferably conical shaft of the crushing tooth is retracted by applying a clamping force in the clamping sleeve.
  • the position of the crusher tooth in the tooth receptacle no longer changes and the clamping sleeve can enter the gap between the shaft and the opening in the tooth receptacle be retracted with a movement against the tooth picking and against the crushing tooth.
  • the opening in the tooth receptacle can be formed continuously, and from the first opening side of the crushing tooth and from the opposite, second opening side, the clamping sleeve can be inserted into the opening.
  • the clamping device may be formed in the simplest case already by the screw between the clamping sleeve and the shaft of the crushing tooth, but preferably the clamping device can be performed hydraulically, mechanically or otherwise, and after retraction of the conical shaft into the clamping sleeve, the clamping device can be removed be and the screw can be used by which the strained arrangement of the conical shaft is secured in the clamping sleeve. Finally, the opening side, through which the clamping sleeve and the screw were introduced, can still be closed with a cover element.
  • Figure 1 shows an embodiment of an arrangement of a crushing tooth on a crushing roller with a clamping device
  • FIG. 1 shows the arrangement of the crushing tooth on the crushing roller with the
  • Figure 1 shows an embodiment of an arrangement of a breaking tooth 10 on a crushing roller 1 of a roll crusher, wherein the crushing roller 1 is shown only partially.
  • a tooth receptacle 11 is arranged externally on the crushing roller 1, and by way of example, welds 28 are shown between the tooth receptacle 11 and the surface of the crushing roller 1 in order to fix the tooth receptacle 11 to the roller 1.
  • an opening 12 is introduced, which is formed by way of example cylindrical and extends in the form of a through hole along the longitudinal direction 20 shown through the tooth holder 11 therethrough.
  • a crushing tooth 10 is inserted into the opening 12 of the tooth receptacle 11.
  • a clamping sleeve 13 is inserted into the opening 12 of the tooth receptacle 11.
  • the breaking tooth 10 has a conically shaped shank 14, which extends on the underside on the tooth head 15, wherein the tooth head 15 points in the direction of rotation of the crushing roller 1.
  • the clamping sleeve 13 surrounds the conical shaft 14 of the breaking tooth 10 by the shaft 14 is inserted in a receptacle 18 of the clamping sleeve 13.
  • the cylindrically shaped outer contour 19 of the clamping sleeve 13 is seated in the opening 12 of the tooth holder 11 a.
  • the tooth head 15 of the breaking tooth 10 has an abutment collar 16, which rests flat against an abutment edge 17 of the tooth receptacle 11, the abutment edge 17 enclosing the opening 12 in the tooth receptacle 11 completely. If comminuting forces act on the tooth head 15, these forces are transmitted via the abutment collar 16 and the abutment edge 17 directly from the tooth head 15 into the tooth head 15 Teeth 11 transferred without the crushing forces on the shaft 14 and the clamping sleeve 13 must be passed into the tooth holder 11.
  • a clamping device 25 which has a mandrel 26 and sleeve 27 as the simplest embodiment, to retract the clamping sleeve 13 in the gap.
  • the mandrel 26 has been screwed into a threaded bore 33 in the shank 14 of the crushing tooth 10, so that a tensile force can be applied to the shank 14 via the mandrel 26.
  • the sleeve 27 has been screwed into a thread 29, which is located on the sleeve base 30 of the clamping sleeve 13. Consequently, tensile and also compressive forces can be introduced into the shank 14 or into the clamping sleeve 13 both via the mandrel 26 and via the sleeve 27.
  • a tensile force is exerted on the mandrel 26 and a compressive force on the sleeve 27 , wherein the respective forces of the clamping force F correspond.
  • the tensioning force F can be applied for example by a hydraulic or by a mechanical device, which is not shown in detail.
  • the clamping sleeve 13 can be pushed so far into the gap until the required clamping force F is reached.
  • this has a slotted design, wherein a longitudinal slot of the clamping sleeve 13 is located in the lower side of the cutting plane, so that formed by the slotted design, the lower half of the clamping sleeve 13 through the side surface of the slot is and so that the hatching is omitted.
  • the described clamping device 25 can furthermore be used to remove the breaking tooth 10 from the receptacle 11 and in particular from the seat of the clamping sleeve 13.
  • the clamping sleeve 13 can also be pressed into the gap between the shaft 14 and the opening 12, for example by a crusher tooth 10 and the clamping sleeve 13 equally encompassing tool.
  • the pulling and pressing is understood relatively between the breaking tooth 10 and the clamping sleeve 13.
  • FIG. 2 shows the arrangement of the breaking tooth 10 in the tooth receptacle 11 on the crushing roller 1 in a clamped arrangement, wherein a screw element 21 is inserted in a screw receptacle 24 in the sleeve base 30 of the clamping sleeve 13.
  • the screw 21 has a screw head 23 which is seated in the screw receptacle 24, which also serves the use of the thread 29 for the arrangement of the sleeve 27, and the screw 21 further comprises a screw shaft 22 which in the threaded bore 33 in the shaft 14 of the Crushing tooth 10 is screwed.
  • the screw 21 clamps the clamping sleeve 13 with the breaking tooth 10, so that the clamping force F which was applied with the clamping device 25, is secured and maintained.
  • the arrangement of the screw 21 in the screw receptacle 24 can also be secured by a securing element 34 that is under the screw head 23 in abutment against the sleeve base 30 and may be formed, for example in the form of a Nord-Lock-securing element.
  • the radially encircling seat of the crushing tooth 10 in the tooth receptacle 11 can have a form-fitting region 35 at the point shown, which adjoins the inner region of the abutment edge 17.
  • the positive connection can be achieved by a securing flank, a multiple toothing or, for example, by a square or a polygon, which forms the receiving opening of the tooth receptacle 11 in the form-fit region 35 shown.
  • the conical seat of the clamping sleeve 13 need not necessarily be formed between the clamping sleeve 13 and the shaft 14, because the shaft 14 may also be cylindrical, so that the receptacle 18 in the clamping sleeve 13 is cylindrical.
  • the outer contour 19 of the clamping sleeve 13 may be conical, wherein the conical outer side of the clamping sleeve 13 may correspond to a corresponding conical opening 12 in the tooth holder 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

L'invention concerne la disposition d'une dent de broyage (10) sur un cylindre broyeur (1) d'un broyeur a cylindres et un procédé correspondant, le cylindre broyeur (1) présentant un logement de dent (11) pourvu d'une ouverture (12) dans laquelle la dent de broyage (10) peut être logée et maintenue. Selon l'invention, une douille de serrage (13) est prévue, dans laquelle est logée une tige (14) de la dent de broyage (10) sous tension radiale de la douille de serrage (13) dans l'ouverture (12).
PCT/EP2013/069574 2012-09-21 2013-09-20 Disposition d'une dent de broyage sur un cylindre broyeur d'un broyeur a cylindres WO2014044797A2 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP13766273.0A EP2897733B1 (fr) 2012-09-21 2013-09-20 Disposition d'une dent de broyage sur un cylindre broyeur d'un broyeur a cylindres
CN201380060619.5A CN104797342B (zh) 2012-09-21 2013-09-20 在辊式破碎机的破碎辊上的破碎机齿的结构
EA201590514A EA029248B1 (ru) 2012-09-21 2013-09-20 Дробильный валок валковой дробилки
BR112015006148-6A BR112015006148B1 (pt) 2012-09-21 2013-09-20 Disposição de um dente triturador em um cilindro triturador de um triturador de cilindros; e método para disposição de um dente triturador em um cilindro triturador
AU2013320199A AU2013320199B2 (en) 2012-09-21 2013-09-20 Arrangement of a crusher tooth on a crushing roll of a roll crusher
DK13766273.0T DK2897733T3 (en) 2012-09-21 2013-09-20 ARRANGEMENT OF A CRUSHING TOOTH ON A CRUSHING ROLL OF A ROLLER CRUSHER

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012108935.3 2012-09-21
DE102012108935.3A DE102012108935A1 (de) 2012-09-21 2012-09-21 Anordnung eines Brechzahnes an einer Brechwalze eines Walzenbrechers

Publications (2)

Publication Number Publication Date
WO2014044797A2 true WO2014044797A2 (fr) 2014-03-27
WO2014044797A3 WO2014044797A3 (fr) 2014-10-30

Family

ID=49231453

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/069574 WO2014044797A2 (fr) 2012-09-21 2013-09-20 Disposition d'une dent de broyage sur un cylindre broyeur d'un broyeur a cylindres

Country Status (8)

Country Link
EP (1) EP2897733B1 (fr)
CN (1) CN104797342B (fr)
AU (1) AU2013320199B2 (fr)
BR (1) BR112015006148B1 (fr)
DE (1) DE102012108935A1 (fr)
DK (1) DK2897733T3 (fr)
EA (1) EA029248B1 (fr)
WO (1) WO2014044797A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107552147A (zh) * 2016-07-01 2018-01-09 南京凯盛国际工程有限公司 一种辊式破碎机辊套结构及辊式破碎机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4123967A1 (de) 1991-07-19 1993-01-21 Krupp Industrietech Zweiwalzenbrecher mit auswechselbaren brechzaehnen

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GB2129853A (en) * 1982-11-08 1984-05-23 Wimet Mining Limited Cutter picks and pick mounting arrangements
DE3701905C1 (de) * 1987-01-23 1988-09-15 Betek Bergbau & Hartmetall Befestigung eines Rundschaftmeissels
US5507441A (en) * 1994-01-04 1996-04-16 Vermeer Manufacturing Company Swinging hammer for a material reducing machine
DE29623215U1 (de) * 1996-07-30 1998-01-02 Betek Bergbau- und Hartmetalltechnik Karl-Heinz Simon GmbH & Co KG, 78733 Aichhalden Werkzeug für eine Schrämmaschine
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CN201380089Y (zh) * 2009-03-13 2010-01-13 煤炭科学研究总院唐山研究院 可更换截齿的破碎齿辊
DE102009027732B4 (de) * 2009-07-15 2012-02-23 Gerd Elfgen Meißel einer Fräseinrichtung
GB201103096D0 (en) * 2011-02-23 2011-04-06 Element Six Holding Gmbh Insert and degradation assembly
CN102274773A (zh) * 2011-05-06 2011-12-14 煤炭科学研究总院唐山研究院 高强度可更换破碎齿
CN202010564U (zh) * 2011-05-06 2011-10-19 煤炭科学研究总院唐山研究院 高强度可更换破碎齿
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Also Published As

Publication number Publication date
BR112015006148B1 (pt) 2021-06-01
AU2013320199A1 (en) 2015-04-23
DK2897733T3 (en) 2018-07-30
EP2897733B1 (fr) 2018-05-02
WO2014044797A3 (fr) 2014-10-30
EP2897733A2 (fr) 2015-07-29
EA201590514A1 (ru) 2015-08-31
CN104797342A (zh) 2015-07-22
CN104797342B (zh) 2017-05-24
AU2013320199B2 (en) 2018-03-22
DE102012108935A1 (de) 2014-03-27
EA029248B1 (ru) 2018-02-28
BR112015006148A2 (pt) 2017-07-04

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