EP3221102A1 - Trommel für eine zerkleinerungsvorrichtung, insbesondere einen exakthacker - Google Patents
Trommel für eine zerkleinerungsvorrichtung, insbesondere einen exakthackerInfo
- Publication number
- EP3221102A1 EP3221102A1 EP15823589.5A EP15823589A EP3221102A1 EP 3221102 A1 EP3221102 A1 EP 3221102A1 EP 15823589 A EP15823589 A EP 15823589A EP 3221102 A1 EP3221102 A1 EP 3221102A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- spacer
- support surface
- disc
- cutting tools
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims abstract description 3
- 125000006850 spacer group Chemical group 0.000 claims description 64
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 2
- 238000011161 development Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002916 wood waste Substances 0.000 description 1
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
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
- B02C18/146—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with a rotor comprising a plurality of axially contiguous disc-like segments each having at least one radially extending cutting element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G13/00—Cutter blocks; Other rotary cutting tools
- B27G13/08—Cutter blocks; Other rotary cutting tools in the shape of disc-like members; Wood-milling cutters
- B27G13/10—Securing the cutters, e.g. by clamping collars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
- B27L11/005—Tools therefor
Definitions
- the invention relates to a drum for a comminution device, in particular a Exakthacker, with a shaft on which the drum is arranged, wherein cutting tools are provided in knife receptacles on the outer circumference of the drum, which serve to crush the material to be comminuted, with at least one spacer, that a support surface or contact surface for the material to be shredded on the drum has, by the height of the chip size for comminution is determined.
- Such drums are known in Exakthackern, which are known either ashackerwalze, as a knife drum, flail drum or as a hacking drum. These drums are mounted in a housing and set in a rotary motion. These chippers are used for example in forestry to shred wood waste. But they also serve the crushing of feed or for the dissolution of cellulosic materials. When using precision choppers, value is placed on a uniform chip in a certain dimension. It is desired that different chip sizes for different goods to be shredded can be made with a device. In the prior art, it is known that the knives are adjustable in height, that are formed changeable in their flight circle.
- Chip size Due to the wear and tear of the blades, however, a change in the following occurs after a short processing time Chip size that is not wanted.
- Exakthacker with a drum which have one or more conditions that serve as a spacer or spacers for the material to be shredded.
- the disadvantage of these devices is that the chip size is not changeable.
- Another disadvantage of these devices is that the spacer is exposed to a very high wear during normal use.
- the object of the invention is therefore to propose a device for the comminution of material to be comminuted, which no longer has at least one of the disadvantages of the prior art described above.
- the object of the invention is achieved by a drum for a comminution device, in particular for a precision chopper, with a shaft on which the drum is arranged, wherein cutting tools are provided in knife receptacles on the outer circumference of the drum, which serve to shred the material to be comminuted, with at least one spacer, which has a contact surface or a contact surface for the material to be comminuted on the drum, by the height of the chip size for comminution is determined, the altitude of the spacer on the drum is adjustable or changeable, in particular adjustable, which is characterized in that the spacer seen in section is approximately T-shaped, so that it on one side with one side of the upper crosspiece of the T on the outer edge of the drum disc and on the inner radius of the spacer, ie on a formed there Molded surface is placed.
- the invention proposes that the spacer seen in section is approximately T-shaped, so that it unilaterally with one side of the upper crosspiece of the T on the outer edge of the drum disc and on the inner radius of the spacer, ie on a formed there form-fitting surface can be placed.
- a positive locking is additionally provided, namely, when the outer edge of the drum disc with the leg of the T in the installed position facing the drum Page corresponds, ie they have the same radius. An unwanted adjustment of the chip size is thereby reliably prevented.
- the invention is characterized according to a development in that the spacer is arranged replaceably on the drum.
- the advantages of such a configuration are obvious.
- an adjustment of the distance of the spacer from the drum axis is possible. This allows different spacings of the spacer set, resulting in a different chip size results.
- the drum is formed by at least two drum discs, which are arranged parallel to each other and spaced from each other on the shaft.
- This embodiment is particularly advantageous because it succeeds in a clever manner, both the cutting tools and the spacers due to the existing gap easy to attach to the drum discs.
- the drum is designed as a rotor. Accordingly, the drum is arranged, for example, in a housing and rotatably supported there, so that it functions as a rotor. It does not matter whether the rotor is designed as a compact body, which carries the spacers and the cutting tools at certain receptacles or whether a disc-shaped configuration of the motor is provided, wherein the cutting tools and the spacers are then provided on the discs. Accordingly, according to a variant of the invention, the rotor is designed as a compact drum.
- the blade holders are provided with the cutting tools and the at least one spacer on the drum disc.
- the advantages achieved have already been described above. It is also advantageous if two spacers and two cutting tools are arranged on each drum disc.
- the blade receptacles are made in several parts, consisting of a knife holder base, an intermediate piece and a pressure piece, wherein the cutting tool is disposed between the intermediate piece and the pressure piece.
- the cutting characteristic for the cutting tool can be improved, while at the same time the wear on the blades can be minimized.
- the arrangement of the intermediate piece that one holds intermediate pieces of different thickness, for example, to change the knife thickness or to replace the blades in case of wear can.
- the pressure piece the knife is firmly pressed on the blade holder lower part together with the intermediate piece, so that it can not change in the intended use.
- the knife holder base becomes In this case, for example, fixed, for example by welding, attached to the drum or the drum disc, while the pressure piece is fixed, for example by means of known releasable fastening means to the blade receiving base.
- Another aspect of the drum according to the invention is also that the cutting tools and / or the spacers of two juxtaposed drum discs are offset from one another.
- Such a configuration has proven advantageous and results in that the wear on the blades and also on the spacers can be kept low. It is particularly advantageous if the cutting tools and the spacers of two juxtaposed drum discs are offset from one another so that upon rotation of the drum, the support surface is active before the cutting tool is active or attacks on the material to be comminuted.
- This has the decisive advantage that the knives can only engage at the desired distance in order to obtain the desired chip size or the desired size reduction. Of course, this also leads to an increase in the life of the cutting tools and to a uniform cutting performance of the device as a whole.
- an advantageous development of the solution according to the invention is characterized in that the placed on the drum disc side of the spacer, that is in the installed position facing the drum disc side of the upper crossbar of the T corresponds to the outer radius of the drum disc.
- the invention also proposes that the two sides of the upper transverse web are offset from one another. By offset is meant here, seen laterally, the upper crosspiece of the T is placed on one side deeper than on the other. As a result, two different form-fitting surfaces are formed.
- the central web of the T-shaped spacer has at least two holes which cooperate with fastening means to secure the spacer to the drum disc.
- a secure attachment is achieved by means of a frictional connection.
- laterally seen the upper web of the T-shaped Distanzsücks tapers sickle-shaped, preferably counter to the direction of rotation of the drum during the crushing process. This leads to a reduction of wear and increases the accuracy of the cutting performance of the crushing device with the drum according to the invention.
- the middle web of the T-shaped spacer has two further holes to fix the spacer on the drum disk in a different altitude relative to the center of the drum disc.
- the spacer has two further holes to fix the spacer on the drum disk in a different altitude relative to the center of the drum disc.
- the holes for height adjustment of the spacer are formed as slots.
- a further development of the solution described above is characterized in that the hole formed as a slot has detents in order to fix the spacer in determined by the screening elevation. These grids serve to avoid displacement of the spacer in the slot under heavy load.
- the grids provide an additional form fit, which reliably prevents this.
- the screens can be arranged according to the invention both in the slot and on the side parts of the central web of the T. It is only important that an additional positive fit is formed, which prevents slipping or moving the spacer.
- Another variant of the drum according to the invention suggests that a preferably triangular-shaped support surface is provided on the support surface. This makes it possible to minimize the wear on the spacer of the device.
- a further improvement of the variant described above suggests that the support surface is flattened at the corners. Accordingly, it is also provided according to the invention that the support surface is designed as a protective element for the support surface.
- the measures described above are used overall to further reduce the wear on the support surface, which arises during normal use. Also, improved protection of the cutting tools of the device is achieved.
- the invention also relates to a shredding device, in particular an exact chipper with at least one drum according to one of the variants or embodiments of the invention described above.
- Fig. 1 is a three-dimensional view of an embodiment of the drum according to the invention.
- Fig. 2 the drum shown in Fig. 1 as a front view.
- the drum 1 shows a three-dimensional representation of an embodiment of the drum 1 according to the invention for the comminution device. It should be understood that this embodiment is by no means limitative of the invention and represents only one of several possible embodiments.
- the drum 1 is arranged on a shaft 2.
- the drum consists of five drum discs 11, which are spaced apart on the shaft 2 are arranged.
- On each of the drum discs 11 are two cutting tools 3 arranged in knife holders 31.
- the knife holders 31 consist of a knife holder base 33, an intermediate piece 32 and a pressure piece 33, wherein the cutting tool 3 is arranged between the intermediate piece 32 and the pressure piece 33.
- the spacer 4 is T-shaped, which is shown very nicely in Fig.
- the spacer 4 is fixed on one side with its central web on the drum disk 11.
- the attachment takes place in holes 45 by means of fastening means 43.
- At the middle web of the T-shaped spacer 4 further holes 44 are provided, which are intended for the case that you want to attach the spacer 4 in a different altitude on the drum pulley 11 , This is done in a simple manner by securing the spacer 4, after it has been released from the attachment means 43, on the other side of the drum disk 11 in bores corresponding therewith by means of the bores 44 and the fastening means 43.
- the upper transverse web of the T is provided offset at different altitudes, on the side facing in the proper use of the drum discs 1 side.
- the spacer 4 has a bearing surface 41, which is active before the cutting tool 3 is active or on which to shred Good attacks. That is, by the support surface 41, the chip size is determined for the good to be shredded accordingly.
- a support surface 42 is provided, which is formed substantially triangular. This support surface 42 is rounded or flattened at the corners.
- the support surface 42 serves as a protective element for the support surface 41st
- Fig. 2 shows the drum 1 shown in Fig. 1 in front view.
- the reference numbers presented in FIG. 1 are used in this figure for the same features, which is why a new idea can be dispensed with.
- the invention has been described above with reference to an embodiment.
- the claims now filed later and with the application are attempts to formulate without prejudice to the attainment of further protection.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Crushing And Pulverization Processes (AREA)
- Crushing And Grinding (AREA)
- Harvester Elements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202014009164.1U DE202014009164U1 (de) | 2014-11-19 | 2014-11-19 | Trommel für eine Zerkleinerungsvorrichtung, insbesondere einen Exakthacker |
PCT/EP2015/002315 WO2016078764A1 (de) | 2014-11-19 | 2015-11-19 | Trommel für eine zerkleinerungsvorrichtung, insbesondere einen exakthacker |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3221102A1 true EP3221102A1 (de) | 2017-09-27 |
EP3221102B1 EP3221102B1 (de) | 2020-01-01 |
EP3221102B8 EP3221102B8 (de) | 2020-02-26 |
Family
ID=55135180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15823589.5A Active EP3221102B8 (de) | 2014-11-19 | 2015-11-19 | Trommel für eine zerkleinerungsvorrichtung, insbesondere einen exakthacker |
Country Status (5)
Country | Link |
---|---|
US (1) | US10589282B2 (de) |
EP (1) | EP3221102B8 (de) |
JP (1) | JP6661634B2 (de) |
DE (1) | DE202014009164U1 (de) |
WO (1) | WO2016078764A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI127672B (fi) * | 2016-03-31 | 2018-11-30 | Kesla Oyj | Hakkurin roottori |
AT15563U1 (de) * | 2016-11-18 | 2018-01-15 | Eschlböck-Maschinenbau Ges M B H | Vorrichtung zum Zerspanen von Holz |
DE202017000378U1 (de) | 2017-01-24 | 2018-04-25 | B. Maier Zerkleinerungstechnik Gmbh | Messertrommel zum Zerkleinern von Holz |
CN107790254A (zh) * | 2017-10-31 | 2018-03-13 | 天津仁义合自动化技术股份有限公司 | 一种适用于板材切料及废料破碎装置 |
JP7423061B2 (ja) | 2020-05-22 | 2024-01-29 | 株式会社バンブーケミカル研究所 | 連続回転式切断装置 |
CN114887732B (zh) * | 2022-05-20 | 2023-04-28 | 重庆电子工程职业学院 | 一种自动换刀的煤矿粉碎机 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US269315A (en) * | 1882-12-19 | Gutter-head | ||
US3216470A (en) * | 1962-07-09 | 1965-11-09 | Soderhamns Verkst Er Ab | Method and a machine for producing wood particles |
DE2618254A1 (de) * | 1976-04-27 | 1977-11-10 | Jenz Masch & Fahrzeug Hans | Messertrommel, insbesondere fuer hackmaschinen zur zerkleinerung von hoelzern und abfaellen |
US5662436A (en) * | 1994-04-08 | 1997-09-02 | Todd N. Bishop | Rotating tool star shaped holding member interfitted to insert mounting disk |
US5511597A (en) * | 1995-01-06 | 1996-04-30 | Key Knife, Inc. | Slabbing chipper with replaceable knives and wear plate |
US5617908A (en) * | 1995-06-07 | 1997-04-08 | Key Knife, Inc. | Chipping cutter head including end cutting knives |
US5709255A (en) * | 1996-10-18 | 1998-01-20 | Key Knife, Inc. | Chipper with detachable facing knives |
US5816301A (en) * | 1997-07-30 | 1998-10-06 | Key Knife, Inc. | Knife supporting structure |
CA2358631C (en) | 2001-10-11 | 2010-01-12 | Iggesund Tools Ab | Adjustable wood processing device and method of adjusting the same |
DE202005017373U1 (de) | 2005-11-05 | 2006-04-13 | Weiss, Georg | Hackrotor mit einstellbarer Einschneidtiefe |
DE102005053006B3 (de) * | 2005-11-05 | 2007-04-05 | Weiss, Georg | Hackrotor mit einstellbarer Einschneidtiefe |
DE102011012663B4 (de) * | 2011-02-28 | 2014-07-03 | Lindner Wood Shredders Gmbh | Messerhalterung zur Befestigung eines Hackmessers |
-
2014
- 2014-11-19 DE DE202014009164.1U patent/DE202014009164U1/de active Active
-
2015
- 2015-11-19 JP JP2017527221A patent/JP6661634B2/ja active Active
- 2015-11-19 US US15/528,118 patent/US10589282B2/en active Active
- 2015-11-19 EP EP15823589.5A patent/EP3221102B8/de active Active
- 2015-11-19 WO PCT/EP2015/002315 patent/WO2016078764A1/de active Application Filing
Also Published As
Publication number | Publication date |
---|---|
JP6661634B2 (ja) | 2020-03-11 |
EP3221102B1 (de) | 2020-01-01 |
WO2016078764A1 (de) | 2016-05-26 |
US10589282B2 (en) | 2020-03-17 |
DE202014009164U1 (de) | 2016-02-22 |
JP2017534452A (ja) | 2017-11-24 |
EP3221102B8 (de) | 2020-02-26 |
US20170341082A1 (en) | 2017-11-30 |
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