EP2512681A2 - Maillet comportant une garniture de coupe et un corps de base - Google Patents

Maillet comportant une garniture de coupe et un corps de base

Info

Publication number
EP2512681A2
EP2512681A2 EP11799625A EP11799625A EP2512681A2 EP 2512681 A2 EP2512681 A2 EP 2512681A2 EP 11799625 A EP11799625 A EP 11799625A EP 11799625 A EP11799625 A EP 11799625A EP 2512681 A2 EP2512681 A2 EP 2512681A2
Authority
EP
European Patent Office
Prior art keywords
cutting
base body
cutting insert
flail
connection
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
EP11799625A
Other languages
German (de)
English (en)
Other versions
EP2512681B1 (fr
Inventor
Johann Doppstadt
Horst Berger
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.)
Lig GmbH
Original Assignee
Doppstadt Familienholding 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=45401022&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2512681(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Doppstadt Familienholding GmbH filed Critical Doppstadt Familienholding GmbH
Priority to PL11799625T priority Critical patent/PL2512681T3/pl
Publication of EP2512681A2 publication Critical patent/EP2512681A2/fr
Application granted granted Critical
Publication of EP2512681B1 publication Critical patent/EP2512681B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26Details
    • B02C13/28Shape or construction of beater elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/02Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/04Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters hinged to the rotor; Hammer mills
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16Details
    • B02C18/18Knives; Mountings thereof

Definitions

  • the invention relates to a flail, in particular for crushing devices with a rotor or at least one shaft, on or on which the flail is fastened.
  • Crushing devices which are equipped with at least one mallet, which are arranged on a rotor or on a rotating shaft in the comminution device and which cooperate for comminuting the material to be comminuted with a counter-blade arranged in the device.
  • the problem with the maintenance of equipped with flail shredders is usually that the blades or the blade carrier wear very quickly and thereby at least the blades or the blade carrier must be changed at regular intervals. The change of the blades is a time-consuming affair, which leads to prolonged downtime of the crushing device.
  • CONFIRMATION COPY which are preferably rotatably mounted and which are equipped with counter blades outside of the rotor.
  • This shredding unit is characterized by the fact that the flail is provided with a replaceable cutting tip, which is connected by an interlocking profile with the flail. In this case, the meshing profile of grooves and ribs is formed, wherein the cutting tip and the flail are connected by a securing element.
  • a flail for a rotor shredder comprises an elongated base body with a pivot bearing, by means of which the flail is pivotally engageable on a rotor about a pivot axis parallel to the rotor axis and with a support surface extending towards the free end of the base body. Furthermore, the flail has a cutting head with cutting edges projecting at opposite ends, wherein the cutting head is supported on the base body via the support surface and complementary interengaging structures on the support surface and cutting head provided on the support surface. Furthermore, a releasable connection means for connecting the base body and cutting head is provided, which is passed through the complementary structures.
  • the complementary structures are formed by a depression formed in the support surface of the main body and a complementary projection of the cutting head. Furthermore, here the cutting head is protected, which has the particular advantage that it is rotatable by 180 degrees, so that after the wear of the first cutting edge, the second cutting edge can be used.
  • a flail is beaten, which is characterized in that in the lower body arranged in the interior of the lower body recess is provided, in which at least one provided on the cutting head connection lug engages positively. It is provided that a lower body and a cutting head cooperate with each other in a form-fitting manner to form a flail.
  • this flail has the disadvantage that the proportion of material of the cutting head or cutting body is much too high compared to the total material content of the flail. This results in the fact that the production of the Schlegel according to the prior art, of course, is significantly more material consuming and in particular cause the spare parts for the Schlegel overall too high costs.
  • the invention proposes a flail, in particular for crushing devices with a rotor or at least one shaft on or on which the flail is fastened, consisting of a provided with a through hole Base body, wherein the through hole is provided for connecting the bracket to the rotor or the shaft, and a cutting insert which is releasably / firmly connectable to the base body by at least one positive connection and by at least one connecting means, which is characterized in that the connecting means exerts a force that pulls the cutting insert into the positive connection of the main body or pressing, and from a first force (P) results in a second force (P1), the cutting insert at a decreasing angle (a) with respect to an axis (Y ) of the flail and an axis of symmetry of the connecting means substantially parallel to the axis (Y) of the flail into the body pulls or pushes.
  • the at least one connecting means which positively connects the main body to the cutting body, or supports the positive connection by an additional force fit, is designed in such a way that the force P, which pulls or presses the cutting insert into the positive connection of the main body, is in one slightly sloping angle ⁇ with respect to the Y-axis of the bracket and the axis of symmetry of the connecting means is provided.
  • the flail for crushing devices it is possible to design the flail for crushing devices so that the entire flail consists only of two parts, namely the cutting insert and the base body, the material content of the cutting insert, as already mentioned, is relatively low.
  • the connecting means is inserted at an angle sloping counter to the cutting direction or against the Y-axis of the body, it follows that due to an upper, now not seen wedge-shaped, but just running surface, a pressure is applied downward, then presses the rounding on the correspondingly formed rounding on the body.
  • a single connection means for example a screw connection, one thus achieves a double effect here.
  • the knife or the cutting insert as a whole has a much higher cutting attachment, which can then be processed almost to the body in its intended use.
  • there are great manufacturing advantages since it is no longer necessary to train in the prior art complicated ormenbenden, wedge-shaped inwardly or outwardly sloping extending support surfaces.
  • a flail in particular for crushing devices with a rotor or at least one shaft, on or on which the flail is fastened, consisting of a provided with a through hole body, wherein the through hole for connecting the flail to the rotor or the shaft is provided and a cutting lug, which is releasably / firmly connectable to the base body by at least one positive connection and by at least one connecting means, the connecting means exerts a force that pulls the cutting insert into the positive connection of the body or presses, in particular Schlegel as before described, which is characterized in that for the formation of the positive connection of the cutting insert in the body is swiveled or screwed.
  • connection lug is provided on the cutting insert with a connecting nub in the main body.
  • connection approach and connection node to each other in a corresponding form.
  • the connecting nub with the connection recess in the main body or its side boundaries form a guide for pivoting in the cutting insert.
  • This configuration also makes it possible to obtain the previously described benefits.
  • This embodiment also serves to achieve the object of the invention, as it has been defined at the outset. This now makes it possible, for example, the exchange of flails in addition to the already described effects of material savings even easier to change after wear or to introduce these in a new equipment of rotors in the body. This can be done without having to take the basic body out of the rotor. This is done, as usual, by loosening the fastener and swinging out the flag for the removal or by pushing in and swiveling the nail during assembly.
  • the embodiment of the invention described first in a development of the invention is characterized in that the force is provided at a decreasing angle with respect to the Y axis of the bracket and the axis of symmetry of the connecting means.
  • the connecting means corresponding to the angle ⁇ sloping against the cutting direction, is arranged in the mallet and generates or causes the force P in the tightened state.
  • the angle a which, as already mentioned, results between the Y axis of the baffle and the axis of symmetry of the connecting means, is provided at an angle between 91 ° to 145 °, preferably 105 °.
  • the connecting means is formed by a screw connection consisting of correspondingly provided connecting holes in the base body and in the cutting insert, preferably designed as a machine screw screw and a nut, which preferably supports by means of a washer and optionally by means of a Circlip is secured against unintentional loosening.
  • the connecting bores are formed conically sloping counter to the cutting direction. This makes it easier to insert the screw of the screw connection.
  • the invention further proposes that the base body extends on its side facing the cutting insert up to a defined distance from a circle defined by the knife tip of the cutting insert to form a support region and / or a cutout for the cutting insert ,
  • This defined distance from the circle of the blade therefore indicates the extent to which the blade tip or the cutting insert is intended for processing.
  • the cutting insert must be changed. It is advantageous if, starting from the circle of the blade tip, a free cut is formed at the desired distance, which is obtained essentially by a rounding of the base body in the cutting direction, which is exactly in the area located where the cutting body undergoes an angling in the direction of the knife tip.
  • the distance that emanates from the circle of the blade tip of the cutting insert is further defined by the body circle at its point farthest from the axis of rotation.
  • the cutting insert according to the invention is supported, similar, as in the solutions of the prior art, in its entire width on or on the base body. This ensures better power transmission from the cutting insert to the base body.
  • a further aspect of the solution according to the invention is specified by the fact that the cutting insert is designed to be insertable into the basic body at least partially, in particular with its part of the positive connection. It is preferred if this part of the positive connection of the main body is enclosed on all sides, so that only the tip of the insert protrudes from the body. This ensures that the positive connection can not be damaged by the material to be shredded or by any impurities in the material to be shredded.
  • the positive connection of the cutting insert to the main body is no longer completely J-shaped, as in the prior art, but only semi-circular shaped.
  • the ratio of the cross-sectional areas of the base body and the cutting insert or the ratio of the mass of base body to cutting insert is between 1: 2 to 1: 5, preferably 1: 3.
  • the invention is also characterized in that the cutting insert has a web in the area in which the connecting means is provided.
  • the web may in this case have the same width as the connecting recess in the base body or, in the installed or assembled state, preferably extend laterally beyond the edge of the main body at least to the edge of the base body.
  • the invention furthermore proposes that, to form the positive connection, a connecting projection is provided on the cutting insert and a connecting nub in the base body, and the connecting projection and the connecting nub have a mutually corresponding shape.
  • the connecting nub is provided in the front part of the main body viewed in the cutting direction.
  • the cutting body is designed as an exchange knife, which has at least two cutting tips.
  • a mallet can also be used for comminution tasks of fibrous and soft wood, such as, for example, eucalyptus wood.
  • the invention also proposes, in a further development, that hardened areas, armorings, welds, hard metal supports or the like are provided as cutting tips on the cutting body at the edges and / or sides pointing in the cutting direction. This design serves to keep the wear effects low and to extend the life of the flail tip or the cutting body.
  • At least the cutting edges of the cutting body are formed of hard metal.
  • the main body for the flail according to the invention has, as in the state The technique already also known, at least one opening, which is preferably provided on the side facing away from the cutting direction of the lower body, which extends at least to the through hole and serves to receive a lubricating device.
  • this may for example be a grease nipple, which is operated by means of a grease gun, for example.
  • a grease gun for example.
  • the invention is also distinguished by the fact that the base body and / or cutting body has been at least partially obtained as a forged stamped part. This is a very cheap production, which makes the cost of producing the Schlegels invention quite cheap.
  • the invention also proposes a crusher, in particular a hacker with at least one flail, as previously described.
  • FIG. 1d to 1f different views of a cutting body after the
  • Fig. 2 shows another embodiment of a dish after the
  • Fig. 3 shows a three-dimensional representation of a basic body according to the invention.
  • Fig. 4-6 further embodiment of a dish according to the invention
  • FIG. 5a-5c further views of another according to the invention
  • FIG. 1a shows in a three-dimensional representation a flail 1 according to the invention.
  • the base body 2 is provided with a through bore B, which serves to connect the flail 1 with the rotor or a shaft of the crushing device, which is not shown.
  • the main body 2 is provided with a cutting insert 3, which, as can be seen, is enclosed by the basic body 2 in a relatively full-surface manner at its form-locking connection V.
  • the cutting insert 3 has cutting edges or blade tips 31, 31 '. In the illustrated embodiment according to FIG. 1a, these blade tips are soldered, for example, as hard metal flakes. However, this is not a limiting embodiment, but only one of many possible variants.
  • the flail carries, indicated schematically by an arrow, a total of the reference numeral 1.
  • the positive connection V is clearly visible in the illustration shown in FIG. 1 b. It is marked with a V and is formed on the base body 2 by a connecting nub 23, which is in the cutting direction S front of the base body 2.
  • a corresponding connection projection 32 with a downwardly extending taper is provided on the cutting insert 3, which of course follows the shape of the connecting projection 23 on the base body 2 in a corresponding manner.
  • the connecting means 4, in the form of the screw 43, is provided at a decreasing angle ⁇ with respect to the Y-axis of the bracket 1.
  • the connecting means 4 generates a force P in the tensioned state, from which a force P1 results, which pulls the cutting insert 3 into the positive connection V of the main body 2 or presses.
  • the angle ⁇ with respect to the Y-axis to the axis of symmetry A of the screw 43 is in the illustrated embodiment about 105 °. However, this angle can be between 91 ° to 145 °.
  • the axis of rotation R of the flail is located in the through hole B.
  • a cutout 25 is formed at the location of the main body 2 furthest from the axis of rotation R. This serves to ensure that shredded material can be better dissipated and in particular also to keep the wear on the base body 2 low.
  • the support area is designated on the base body 2, on which the cutting insert 3 is supported during intended use. In the embodiment not shown here is now a V-shaped configuration, which is provided on both sides expiring in the prior art, now not required.
  • the cutting insert 3 has in Fig. 1b a receiving pocket 34 for the blade tips 31st
  • the opening 200 in the main body 2 is designated, which serves as a lubricating opening. It is for example suitable for receiving a grease nipple. Of course, you can also provide there a lubricant approach or a lubricant supply, by means of which metered lubricant can be supplied.
  • FIG. 1c the same reference numerals have been used as in FIGS. 1a and 1b, so that a new representation can essentially be dispensed with. However, it can be clearly seen in FIG. 1c that the distance h, starting from an imaginary line F, extends as a circle for the blade tip 31 up to a line G which is defined as being furthest from the axis of rotation R.
  • Figs. 1d to 1f show an embodiment of the inventive Schlegels 1 according to the invention. However, only the cutting insert 3 is shown. As can be seen, the cutting insert 3 has receiving pockets 34 accommodating knives on its cutting edge.
  • the connecting bore 42 shows that the representations of Figs. 1d and 1e have been made from different angular positions.
  • Fig. 1d shows the cutting insert 3 according to the invention in an embodiment in a side view.
  • a shoulder edge 33 is defined on the side facing away from the cutting direction S, which can likewise define the removal height of the material of the cutting insert 3.
  • the cutout 25 is shown.
  • the cutting insert 3 is supported at least in its upper region in its entire width on the base body 2.
  • the support region 21 is defined on the base body 2.
  • the connection insert 32 on the cutting body 3 is, as can be seen, formed so corresponding that it fits to the connecting nub 23 of the base body 2 accordingly. Only by this embodiment of a semicircular or knob-shaped design of this positive connection V has been able to reduce the corresponding savings in the production of the cutting body according to the invention.
  • Fig. 2 shows another embodiment of a bracket 1 according to the invention.
  • the same features are denoted by the same reference numerals here again, which is why a renewed presentation can be omitted here.
  • two cutting tips 31, 31 are otherwise in the illustration according to Fig. 2.
  • this hammer 1 corresponds essentially to the embodiments shown in Fig. 1.
  • the base body 2 has a connecting recess 22 which are least laterally by a respective web 26, 27 is limited.
  • the connecting nub 23 is arranged.
  • the support region 21 is formed only strichundundförmig and with respect to a lateral extent having no conical configuration. Accordingly, such a body, as well as the cutting insert 3 is relatively inexpensive to manufacture.
  • FIGS. 2a to 2c show different views of the fork according to FIG. 2.
  • the corresponding reference symbols have already been presented, so that a renewed presentation is dispensed with.
  • Figures 4 to 6 show further embodiments of a racket according to the invention.
  • the web 50 which is located in the region of the connecting means on the cutting insert 3, designed wider than in the previous figures.
  • the advantage is that the cutting tip extends over the edge of the main body 2 and so additionally protects it in the upper region.
  • the cutting insert 3 in the direction of arrow a in the base body 2 can be pivoted, inserted or retracted.
  • the positive connection V which is equipped analogous to the previously described embodiments, while the cutting insert 3 can move very nicely into the base body 2, which greatly facilitates the installation and subsequent replacement. In this case, a better protection of the body 2 is achieved in total, so that the service life for the body is further increased significantly.
  • the reference numbers already presented are also used here, which is why a new idea can be dispensed with.
  • Figures 4a to 4c show a cutting insert 3, with two cutting tips, wherein the cutting insert 3 also has the wide web 50.
  • FIGS. 5a to 5c also show a cutting insert 3 which, however, is designed here with a compact cutting region 34. Depending on the different tasks, these cutting inserts are equipped accordingly. Otherwise are Here, the same reference numerals have been used as before, so that express reference can be made thereto.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Earth Drilling (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

L'invention concerne un maillet conçu en particulier pour des dispositifs de broyage équipés d'un rotor ou au moins d'un arbre sur lequel le maillet (1) peut être fixé, comprenant un corps de base (2) pourvu d'un trou traversant (B), ce trou traversant (B) servant à relier le maillet (1) avec le rotor ou l'arbre, et une garniture de coupe (3) qui peut être reliée de manière libérable/fixe avec le corps de base (2) au moins à l'aide d'une liaison (V) par complémentarité de forme et au moins à l'aide d'un moyen de liaison (4), ce moyen de liaison (4) exerçant une force (P) qui relie la garniture de coupe (3) avec le corps de base (2) à l'aide d'une liaison (V) par complémentarité de forme, ou qui les éloigne. Cette invention est caractérisée en ce qu'une force (P1) résultant de ladite force (P) dirige la garniture de coupe (3) dans le corps de base (2), selon un angle décroissant (a) par rapport à un axe (Y) du maillet (1) et un axe de symétrie (A) du moyen de liaison (4), de manière sensiblement parallèle à l'axe (Y), ou l'en éloigne.
EP11799625.6A 2010-10-08 2011-10-07 Maillet comportant une garniture de coupe et un corps de base Active EP2512681B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11799625T PL2512681T3 (pl) 2010-10-08 2011-10-07 Bijak z wkładką skrawającą oraz korpusem podstawowym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202010014030U DE202010014030U1 (de) 2010-10-08 2010-10-08 Schlegel mit einem Schneideinsatz und einem Grundkörper
PCT/EP2011/005008 WO2012045465A2 (fr) 2010-10-08 2011-10-07 Maillet comportant une garniture de coupe et un corps de base

Publications (2)

Publication Number Publication Date
EP2512681A2 true EP2512681A2 (fr) 2012-10-24
EP2512681B1 EP2512681B1 (fr) 2019-04-17

Family

ID=45401022

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11799625.6A Active EP2512681B1 (fr) 2010-10-08 2011-10-07 Maillet comportant une garniture de coupe et un corps de base

Country Status (11)

Country Link
US (1) US9327287B2 (fr)
EP (1) EP2512681B1 (fr)
CN (1) CN103260762A (fr)
CA (1) CA2810733C (fr)
DE (1) DE202010014030U1 (fr)
DK (1) DK2512681T3 (fr)
ES (1) ES2733930T3 (fr)
HU (1) HUE044824T2 (fr)
PL (1) PL2512681T3 (fr)
TR (1) TR201909636T4 (fr)
WO (1) WO2012045465A2 (fr)

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CA2940787C (fr) * 2015-08-31 2026-04-21 Fecon, Llc Outil de defrichement dote d'une bague de terrage et d'un mecanisme de tambour
US10792663B2 (en) * 2015-10-05 2020-10-06 West Salem Machinery Company Multi-blade hammer assembly
DE102015222020A1 (de) * 2015-11-09 2017-05-11 Thyssenkrupp Ag Werkzeug zur Bearbeitung von abrasiven Materialien
DE102016106148A1 (de) * 2016-04-05 2017-10-05 Betek Gmbh & Co. Kg Bearbeitungswerkzeug
US10953406B2 (en) * 2016-04-19 2021-03-23 Alamo Group Inc. Material processing head and tool
CN106238173A (zh) * 2016-08-30 2016-12-21 浙江华莎驰机械有限公司 一种废品处理用齿头结构
CN106269078B (zh) * 2016-08-30 2018-10-23 浙江华莎驰机械有限公司 一种废品处理用组合机械齿结构
CN112203770B (zh) 2018-05-23 2023-01-03 维米尔制造公司 用于粉碎散料的切碎机
CN109127002B (zh) * 2018-10-23 2021-06-11 枣庄鑫金山智能机械股份有限公司 一种制砂机用高强度变质合金锤头
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DE102019116945A1 (de) 2019-06-24 2020-12-24 Betek Gmbh & Co. Kg Gegenschneide
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CN114471884A (zh) * 2022-01-17 2022-05-13 中山斯瑞德环保科技有限公司 刀头及破碎刀具
CN114471886A (zh) * 2022-01-25 2022-05-13 中山斯瑞德环保科技有限公司 破碎刀辊及破碎机
CN114471885A (zh) * 2022-01-25 2022-05-13 中山斯瑞德环保科技有限公司 刀具及破碎机
FR3144529A1 (fr) * 2023-01-04 2024-07-05 Seve Organe de broyage et dispositif de broyage comprenant un tel organe de broyage

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Title
See references of WO2012045465A2 *

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WO2012045465A3 (fr) 2012-09-07
TR201909636T4 (tr) 2019-07-22
CN103260762A (zh) 2013-08-21
US9327287B2 (en) 2016-05-03
US20130168477A1 (en) 2013-07-04
DK2512681T3 (da) 2019-07-22
DE202010014030U1 (de) 2012-01-09
PL2512681T3 (pl) 2019-11-29
EP2512681B1 (fr) 2019-04-17
ES2733930T3 (es) 2019-12-03
WO2012045465A2 (fr) 2012-04-12
CA2810733C (fr) 2017-09-26
HUE044824T2 (hu) 2019-11-28
CA2810733A1 (fr) 2012-04-12

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