CA2341422C - Support for rotary teeth in a crushing machine - Google Patents
Support for rotary teeth in a crushing machine Download PDFInfo
- Publication number
- CA2341422C CA2341422C CA002341422A CA2341422A CA2341422C CA 2341422 C CA2341422 C CA 2341422C CA 002341422 A CA002341422 A CA 002341422A CA 2341422 A CA2341422 A CA 2341422A CA 2341422 C CA2341422 C CA 2341422C
- Authority
- CA
- Canada
- Prior art keywords
- teeth
- rotary
- support
- rotor
- set forth
- 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.)
- Expired - Fee Related
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
- 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
- B02C18/145—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with knives spaced axially and circumferentially on the periphery of a cylindrical rotor unit
-
- 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
- B02C2018/188—Stationary counter-knives; Mountings thereof
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention relates to a support for rotary teeth in a crushing device. Th e crushing device has fixed comb-like arranged teeth and a rotor having circumferential rotary teeth laterally displaced relatively to the fixed teeth. A support for rotary teet h of crushing machines is to be provided, which is adapted to withstand also strong crushi ng forces and permits quick mounting and dismounting of the rotary teeth. To this end, pockets which are open to the outside through an insert opening are formed at the circumference of the rotor. Each pocket forms a front cavity extending from the insert opening in moving direction, and a shallow recess adjacent to the insert opening at the rear end. The rotary teeth are each provided with a foot extending with a elongated front portion in the front cavity and having a convex rear end engaging the flat rear recess under the action of a spring member engaging the front part.
Description
Support for Rotary Teeth in a Crushing Machine Technical Field The invention relates to a support for rotary teeth ir.L a crushing device, the crushing device having fixed teeth in comb-like arrangement and a rotor having circumferential rotary teeth laterally displaced relative to the fixed teeth, which rotary teeth are adapted to be moved between the fixed comb-like arranged teeth, and a material to be crushed being carried forward by the rotary teeth against the fixed teeth and crushed by the fixed teeth and the rotary teeth for rotary teeth Prior Art Such crushing machines are known in the art. The teeth and rotary teeth are subject to strong wear. They are wearing parts which have to be replaced regularly. It may also be desirable to use different rotary teeth for different crushing objects. In crushing machines of the prior art of this type the rotary teeth are screwed to the rotary body.
Dismounting the rotary teeth which are worn or to be replaced and mounting new rotary teeth is a tedious procedure. The screws are subject to heavy loads.
Disclosure of the Invention It is the object of the invention to provide a support for rotary teeth of crushing machines, which is adapted to accommodate also strong crushing forces and permitting quick mounting and dismounting of the rotary teeth.
According to the invention this object is achieved in that (a) pockets are formed at the circumference of the rotor, which pockets are open to the outside through an insert opening, (b) each pocket forms a front cavity extending from the insert opening in moving direction, (c) each pocket furthennore forms a shallow recess adjacent to the insert opening at the rear end, and (d) the rotary teeth are provided with a foot extending with an elongated front portion into the front cavity and having a convex rear end engaging the flat rear recess.
The foot is inserted into the pocket like a human foot is inserted into a shoe.
During operation a force is acting onto the tooth projecting from the insert opening opposite the moving direction. This force tries to tilt the foot backwards.
When the rotor is rotating counter clockwise, a torque is acting clockwise onto the foot.
Thereby, the "heel" of the foot is pressed against the bottom of the pocket, while the front portion of the foot engages the upper surface of the front cavity.
Thus the force acting onto the rotary tooth itself keeps the rotary tooth in engagement with the pocket. Screws are not required, which would be loaded in shear under the action of the forces acting onto the rotary tooth. Changing the rotary teeth each time is accomplished by one single manoeuvre just as putting on and off a shoe.
In one aspect, the present invention resides in support for rotary teeth in a crushing device, the crushing device having fixed comb-like arranged teeth and a rotor having circumferential rotary teeth laterally displaced relatively to the fixed teeth, which rotary teeth are adapted to be moved between the fixed teeth in comb-like arrangement, and a material to be crushed being carried forward by the rotary teeth against the fixed teeth and crushed by the fixed teeth and the rotary teeth, wherein (a) a circumference of the rotor has pockets open to the outside through an insert opening, (b) each pocket has a front cavity extending from the insert opening in a moving direction of the rotor, (c) each pocket furthermore has a shallow recess adjacent to the insert opening at a rear end of each pocket, and (d) the rotary teeth are provided with a foot extending with an elongated front portion in the front cavity and having a convex rear end engaging the shallow recess.
2a Modifications of the invention are subject matter of the sub-claims.
An embodiment of the invention will now be described in greater detail with reference to the accompanying drawings.
Brief Description of the Drawings Fig. 1 is a schematic illustration of a crushing machine.
Fig. 2 shows in detail the support of the rotary teeth during insertion and in inserted state.
Preferred Embodiment of the Invention In Fig. 1, a rotor is designated by 10. The rotor 10 is mounted in a machine rack and is driven about an axis 12. The rotor 10 has rows of replaceably introduced rotary teeth 14 on its circumference. In Fig. 1 only one of such rotary teeth 14 is illustrated. Each rotary tooth 14 has a cutting edge 16 pointing in circumferential direction. The rotary teeth 14 of each row are axially spaced. A row of fixed teeth 20 is located on a fixed carrier 18.
The teeth 20 extend between the paths of the rotary teeth 14. Material to be crushed introduced into the space between the rotor 10 and the carrier 18 from above, is carried forward counter-clockwise by the rotary teeth 14, when the rotor is rotated, and is pressed against the fixed teeth 20. The material is crushed between the rotary teeth 14 and the fixed teeth. The carrier 18 is pivotally mounted on a shaft 22. The carrier 18 is supported by a hydraulic cylinder 19 articulated at a pivoting bearing 24 on the side of the carrier and at a pivoting bearing 26 at the machine rack 28. Mounting the carrier 18 pivotally and supporting it hydraulically ensures that the carrier 18 may evade clockwise, as viewed in Fig. 1, when the charged material includes parts which cannot be crushed or, at least, cannot be crushed in one passage by the rotary teeth 14 and the fixed teeth 20.
When the charged material includes such parts, a guiding and sieving member 30 may be connected to the carrier 18. This guiding and sieving rnember 30 is formed as individual component. It is suspended with a hooked projection 32 in a corresponding recess 34 of the carrier 18 and clamped by an eccentric lever 36. The guiding and sieving member 30 lets crushed material fall through into a receiving groove 38. Uncrushed parts are guided for a new passage through the rotary teeth 14 between. the rotor 10 and the guiding and sieving member 30 and a machine-fixed wall 40, respectively around the rotor 10.
In Fig. 1 and 2 a rotary body of the rotor 10 is designated by 42. Axial rows of solid bodies 44, 46 are introduced into the cylindrical jacket of the rotary body 42. In Fig.2 only two of such bodies are illustrated in different rows. Each of the bodies forms a pocket 48. The pocket 48 is outwardly open through a insert opening 50. The pocket 48 forms an elongated front cavity 52 adjacent to the insert opening 50. The front cavity 52 extends in moving direction, assumed that the rotation of the rotor 10 is counter-clockwise in Fig. 2, that is to the left in Fig. 2. Furthermore, the pocket forms a flat rear recess 54 at the rear end adjacent to the insert opening. The flat rear recess is formed by two surfaces 56, 58 forming an obtuse angle and meeting along an edge 60 parallel to the rotary axis 12 of the rotor 10. Plane outer surfaces 62 and 64 are formed on the outer surface of the body 44 in front of and behind the insert opening 50 viewed in moving direction. A lug 66 projects outwardly from the body 44 behind the rear outer surface 64 viewed in moving direction.
A spring member 68 in form of a rubber elastic body, preferably a rubber spring is located in the front cavity 52.
A rotary tooth 14 is arranged to be inserted into the pocket 48. In the upper part of Fig. 2 the rotary tooth 14 is shown shortly before insertion. The rotary tooth 14 has a foot 70.
The foot 70 has a front portion 72, a center portion 74 the dimensions of which generally correspond to the insert opening, and a convex rear end 76. The rear end 76, similarly to the shallow recess 54, forms two surfaces 78 and 80 forming an acute angle and meeting along an edge 82 parallel to the rotary axis 12 of the rotor 10.
The rotary tooth 14 is provided with a flat componerLt 84 extending in circumferential direction of the rotor 10 adjacent to the insert opening 50 and projecting from the rotary body 42. The projecting component 84 is provided with a cutting edge 86 at its front end viewed in moving direction. The cutting edge 84 is formed by an insert 88 of high-resistant material. The component 84 has contact surfaces 90 and 92 engaging the outer surfaces 62 and 64, respectively of the rotor 10 and the body 44, respectively, in front of and behind the insert opening 50 viewed in moving direction. An opening 94 is formed between the contact surface 90 and the front portion 72, the portion 96 of the body 44 forming the outer surface 62 and the upper wall of the front cavity 48, extending into this jaw.
As may bee seen from Fig. 2, the rotary tooth 14 is inserted with the foot 70 into the pocket 48, similarly as the human foot slips into a shoe. The front portion 72 of the foot 70 squeezes the rubber elastic body 68 with its f'ront surface. The opening 94 is sufficiently deep relatively to the portion 96, and the foot 70 can be pushed forward relatively to the body 44 such that also the convex end 76 of the foot 70 passes through the insert opening 50. When the foot 70 is introduced the rubber elastic body 68 springs back and presses the convex end 76 of the foot 70 elastically into the recess 54. Thus the rotary tooth 14 is retained safely in the rotor 10 also in the case that no forces are acting onto the rotary tooth 14. It is evident that in this state the rotary tooth 14 can easily be dismounted from the rotor 10 with reverse sequence of movements.
When the rotor 10 is driven counter-clockwise in Figs. 1 and 2, and the rotary teeth 14 are moving between the fixed teeth 20, material fed from the upper side is crushed.
between the teeth 14 and 20. Thereby, considerable forces are exerted on the rotary teeth 14. These forces are acting at the cutting edges 86 opposite the moving direction. These forces try to tilt the rotary tooth backwards, that is clockwise. Thereby, the "heel" 98 of the foot 70 engages the bottom 100 of the pocket 48. The uppers surface of the front portion 72 engages the upper inner wall 102 of the front cavity 52. To withdraw the rotary tooth 14 from the body 44 it must be pivoted counter-clockwise, as viewed in Fig.2. However, the forces caused by the crushing of the material generate a clockwise torque. Thus the forces retain the foot safely in the pocket 48 of the body 44. Any screws or other fastening means are not required.
Dismounting the rotary teeth which are worn or to be replaced and mounting new rotary teeth is a tedious procedure. The screws are subject to heavy loads.
Disclosure of the Invention It is the object of the invention to provide a support for rotary teeth of crushing machines, which is adapted to accommodate also strong crushing forces and permitting quick mounting and dismounting of the rotary teeth.
According to the invention this object is achieved in that (a) pockets are formed at the circumference of the rotor, which pockets are open to the outside through an insert opening, (b) each pocket forms a front cavity extending from the insert opening in moving direction, (c) each pocket furthennore forms a shallow recess adjacent to the insert opening at the rear end, and (d) the rotary teeth are provided with a foot extending with an elongated front portion into the front cavity and having a convex rear end engaging the flat rear recess.
The foot is inserted into the pocket like a human foot is inserted into a shoe.
During operation a force is acting onto the tooth projecting from the insert opening opposite the moving direction. This force tries to tilt the foot backwards.
When the rotor is rotating counter clockwise, a torque is acting clockwise onto the foot.
Thereby, the "heel" of the foot is pressed against the bottom of the pocket, while the front portion of the foot engages the upper surface of the front cavity.
Thus the force acting onto the rotary tooth itself keeps the rotary tooth in engagement with the pocket. Screws are not required, which would be loaded in shear under the action of the forces acting onto the rotary tooth. Changing the rotary teeth each time is accomplished by one single manoeuvre just as putting on and off a shoe.
In one aspect, the present invention resides in support for rotary teeth in a crushing device, the crushing device having fixed comb-like arranged teeth and a rotor having circumferential rotary teeth laterally displaced relatively to the fixed teeth, which rotary teeth are adapted to be moved between the fixed teeth in comb-like arrangement, and a material to be crushed being carried forward by the rotary teeth against the fixed teeth and crushed by the fixed teeth and the rotary teeth, wherein (a) a circumference of the rotor has pockets open to the outside through an insert opening, (b) each pocket has a front cavity extending from the insert opening in a moving direction of the rotor, (c) each pocket furthermore has a shallow recess adjacent to the insert opening at a rear end of each pocket, and (d) the rotary teeth are provided with a foot extending with an elongated front portion in the front cavity and having a convex rear end engaging the shallow recess.
2a Modifications of the invention are subject matter of the sub-claims.
An embodiment of the invention will now be described in greater detail with reference to the accompanying drawings.
Brief Description of the Drawings Fig. 1 is a schematic illustration of a crushing machine.
Fig. 2 shows in detail the support of the rotary teeth during insertion and in inserted state.
Preferred Embodiment of the Invention In Fig. 1, a rotor is designated by 10. The rotor 10 is mounted in a machine rack and is driven about an axis 12. The rotor 10 has rows of replaceably introduced rotary teeth 14 on its circumference. In Fig. 1 only one of such rotary teeth 14 is illustrated. Each rotary tooth 14 has a cutting edge 16 pointing in circumferential direction. The rotary teeth 14 of each row are axially spaced. A row of fixed teeth 20 is located on a fixed carrier 18.
The teeth 20 extend between the paths of the rotary teeth 14. Material to be crushed introduced into the space between the rotor 10 and the carrier 18 from above, is carried forward counter-clockwise by the rotary teeth 14, when the rotor is rotated, and is pressed against the fixed teeth 20. The material is crushed between the rotary teeth 14 and the fixed teeth. The carrier 18 is pivotally mounted on a shaft 22. The carrier 18 is supported by a hydraulic cylinder 19 articulated at a pivoting bearing 24 on the side of the carrier and at a pivoting bearing 26 at the machine rack 28. Mounting the carrier 18 pivotally and supporting it hydraulically ensures that the carrier 18 may evade clockwise, as viewed in Fig. 1, when the charged material includes parts which cannot be crushed or, at least, cannot be crushed in one passage by the rotary teeth 14 and the fixed teeth 20.
When the charged material includes such parts, a guiding and sieving member 30 may be connected to the carrier 18. This guiding and sieving rnember 30 is formed as individual component. It is suspended with a hooked projection 32 in a corresponding recess 34 of the carrier 18 and clamped by an eccentric lever 36. The guiding and sieving member 30 lets crushed material fall through into a receiving groove 38. Uncrushed parts are guided for a new passage through the rotary teeth 14 between. the rotor 10 and the guiding and sieving member 30 and a machine-fixed wall 40, respectively around the rotor 10.
In Fig. 1 and 2 a rotary body of the rotor 10 is designated by 42. Axial rows of solid bodies 44, 46 are introduced into the cylindrical jacket of the rotary body 42. In Fig.2 only two of such bodies are illustrated in different rows. Each of the bodies forms a pocket 48. The pocket 48 is outwardly open through a insert opening 50. The pocket 48 forms an elongated front cavity 52 adjacent to the insert opening 50. The front cavity 52 extends in moving direction, assumed that the rotation of the rotor 10 is counter-clockwise in Fig. 2, that is to the left in Fig. 2. Furthermore, the pocket forms a flat rear recess 54 at the rear end adjacent to the insert opening. The flat rear recess is formed by two surfaces 56, 58 forming an obtuse angle and meeting along an edge 60 parallel to the rotary axis 12 of the rotor 10. Plane outer surfaces 62 and 64 are formed on the outer surface of the body 44 in front of and behind the insert opening 50 viewed in moving direction. A lug 66 projects outwardly from the body 44 behind the rear outer surface 64 viewed in moving direction.
A spring member 68 in form of a rubber elastic body, preferably a rubber spring is located in the front cavity 52.
A rotary tooth 14 is arranged to be inserted into the pocket 48. In the upper part of Fig. 2 the rotary tooth 14 is shown shortly before insertion. The rotary tooth 14 has a foot 70.
The foot 70 has a front portion 72, a center portion 74 the dimensions of which generally correspond to the insert opening, and a convex rear end 76. The rear end 76, similarly to the shallow recess 54, forms two surfaces 78 and 80 forming an acute angle and meeting along an edge 82 parallel to the rotary axis 12 of the rotor 10.
The rotary tooth 14 is provided with a flat componerLt 84 extending in circumferential direction of the rotor 10 adjacent to the insert opening 50 and projecting from the rotary body 42. The projecting component 84 is provided with a cutting edge 86 at its front end viewed in moving direction. The cutting edge 84 is formed by an insert 88 of high-resistant material. The component 84 has contact surfaces 90 and 92 engaging the outer surfaces 62 and 64, respectively of the rotor 10 and the body 44, respectively, in front of and behind the insert opening 50 viewed in moving direction. An opening 94 is formed between the contact surface 90 and the front portion 72, the portion 96 of the body 44 forming the outer surface 62 and the upper wall of the front cavity 48, extending into this jaw.
As may bee seen from Fig. 2, the rotary tooth 14 is inserted with the foot 70 into the pocket 48, similarly as the human foot slips into a shoe. The front portion 72 of the foot 70 squeezes the rubber elastic body 68 with its f'ront surface. The opening 94 is sufficiently deep relatively to the portion 96, and the foot 70 can be pushed forward relatively to the body 44 such that also the convex end 76 of the foot 70 passes through the insert opening 50. When the foot 70 is introduced the rubber elastic body 68 springs back and presses the convex end 76 of the foot 70 elastically into the recess 54. Thus the rotary tooth 14 is retained safely in the rotor 10 also in the case that no forces are acting onto the rotary tooth 14. It is evident that in this state the rotary tooth 14 can easily be dismounted from the rotor 10 with reverse sequence of movements.
When the rotor 10 is driven counter-clockwise in Figs. 1 and 2, and the rotary teeth 14 are moving between the fixed teeth 20, material fed from the upper side is crushed.
between the teeth 14 and 20. Thereby, considerable forces are exerted on the rotary teeth 14. These forces are acting at the cutting edges 86 opposite the moving direction. These forces try to tilt the rotary tooth backwards, that is clockwise. Thereby, the "heel" 98 of the foot 70 engages the bottom 100 of the pocket 48. The uppers surface of the front portion 72 engages the upper inner wall 102 of the front cavity 52. To withdraw the rotary tooth 14 from the body 44 it must be pivoted counter-clockwise, as viewed in Fig.2. However, the forces caused by the crushing of the material generate a clockwise torque. Thus the forces retain the foot safely in the pocket 48 of the body 44. Any screws or other fastening means are not required.
Claims (9)
1. Support for rotary teeth (14) in a crushing device, the crushing device having fixed comb-like arranged teeth (20) and a rotor (10) having circumferential rotary teeth (14) laterally displaced relatively to the fixed teeth (20), which rotary teeth are adapted to be moved between the fixed teeth (20) in comb-like arrangement (10), and a material to be crushed being carried forward by the rotary teeth (14) against the fixed teeth (20) and crushed by the fixed teeth (20) and the rotary teeth (14), wherein (a) a circumference of the rotor (10) has pockets (48) open to the outside through an insert opening (50), (b) each pocket (48) has a front cavity (52) extending from the insert opening (50) in a moving direction of the rotor, (c) each pocket (48) furthermore has a shallow recess (54) adjacent to the insert opening (50) at a rear end of each pocket (48), and (d) the rotary teeth (14) are provided with a foot (70) extending with an elongated front portion (72) in the front cavity (52) and having a convex rear end (76) engaging the shallow recess (54).
2. Support as set forth in claim 1, wherein a spring member (68) is located in the front cavity (52), and the foot (70) is kept with its convex rear end (76) in the shallow recess (54) under the action of the spring member (68) pressing onto the front portion (72).
3. Support as set forth in claim 2, wherein the spring member (68) is a rubber elastic body.
4. Support as set forth in any one of claims 1 to 3, wherein the pocket (48) is formed in a solid body (44) inserted into the circumference of a rotary body (42).
5. Support as set forth in any one of claims 1 to 4, wherein the flat rear recess (54) of the pocket (48) and the convex rear end of the foot (70) are each formed by two surfaces (56, 58 and 78, 80, respectively) forming an obtuse angle and meeting along an edge (60 and 82, respectively) parallel to the rotary axis (12) of the rotor (10).
6. Support as set forth in any one of claims 1 to 5, wherein the rotary tooth (14) has a flat component (84) projecting from a rotary body (42) and extending next to the insert opening (50) circumferentially of the rotor (10), which component, in introduced position, engages the outer surfaces (62 and 64, respectively) of the rotor (10) with contact surfaces (90, 92) in front of and behind the insert opening (50), as viewed in the moving direction.
7. Support as set forth in claim 6, wherein a stud projecting outwards is formed behind the rear outer surface (64) of the rotor (10) or body (44).
8. Support as set forth in claim 6 or claim 7, wherein a cutting edge (86) is provided at the front end, in the moving direction, of the component (84).
9. Support as set forth in claim 8, wherein the cutting edge (86) is formed by an insert (88) of a material substantially resistant to crushing forces generated in the crushing device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29910773U DE29910773U1 (en) | 1999-06-21 | 1999-06-21 | Bracket for rotor teeth on a shredding machine |
| DE29910773.6 | 1999-06-21 | ||
| PCT/EP2000/005648 WO2000078462A1 (en) | 1999-06-21 | 2000-06-20 | Mounting for the rotor teeth of a size-reduction machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2341422A1 CA2341422A1 (en) | 2000-12-28 |
| CA2341422C true CA2341422C (en) | 2008-05-13 |
Family
ID=8075056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002341422A Expired - Fee Related CA2341422C (en) | 1999-06-21 | 2000-06-20 | Support for rotary teeth in a crushing machine |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1105216A1 (en) |
| JP (1) | JP4585726B2 (en) |
| AU (1) | AU5221900A (en) |
| CA (1) | CA2341422C (en) |
| DE (1) | DE29910773U1 (en) |
| WO (1) | WO2000078462A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11484886B2 (en) | 2018-05-23 | 2022-11-01 | Vermeer Manufacturing Company | Shredder for comminuting bulk material |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29910773U1 (en) * | 1999-06-21 | 1999-11-18 | Doppstadt Umwelttechnik Verwaltungsgesellschaft mbH, 42555 Velbert | Bracket for rotor teeth on a shredding machine |
| DE202004001956U1 (en) * | 2004-02-09 | 2005-06-30 | Doppstadt Calbe Gmbh | Knife carrier for crushers |
| DE102006047406A1 (en) * | 2006-10-06 | 2008-04-10 | Komptech Gmbh | Comminution device for recycling waste, has counter cutting tools working together with comminution tools, and retaining area of comminution tools inserted into tool retaining bag, which is formed within comminution shaft |
| DE202015003527U1 (en) * | 2014-12-19 | 2016-03-22 | Doppstadt Familienholding Gmbh | Crushing device with a comb system |
| CN110756303A (en) * | 2019-11-06 | 2020-02-07 | 青岛大学附属医院 | Crushing apparatus for dispensing traditional Chinese medicine in hospital |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4739939A (en) * | 1987-04-10 | 1988-04-26 | Blower Application Company | Ripper teeth mounting structure |
| ATE97848T1 (en) * | 1988-06-02 | 1993-12-15 | Hans Hench | ROTARY CUTTING TOOL, PARTICULARLY FOR STRAND GRANULATION OF PLASTICS. |
| NL9002464A (en) * | 1990-11-12 | 1992-06-01 | Boa Maschf Bv | Paper shredding machine - has cutters detachable from driven rotary drum |
| JP3201951B2 (en) * | 1996-03-15 | 2001-08-27 | 日本スピンドル製造株式会社 | Compression cutting equipment for aluminum cans, etc. |
| EP0908238A1 (en) * | 1997-10-06 | 1999-04-14 | UNTERWURZACHER PATENTVERWERTUNGSGESELLSCHAFT mbH | Material shredding apparatus |
| FR2783180B3 (en) * | 1998-09-14 | 2000-10-06 | Bugnot Ets | CYLINDRICAL ROTOR OF FIXED HAMMER CRUSHER |
| DE29910773U1 (en) * | 1999-06-21 | 1999-11-18 | Doppstadt Umwelttechnik Verwaltungsgesellschaft mbH, 42555 Velbert | Bracket for rotor teeth on a shredding machine |
-
1999
- 1999-06-21 DE DE29910773U patent/DE29910773U1/en not_active Expired - Lifetime
-
2000
- 2000-06-20 JP JP2001504515A patent/JP4585726B2/en not_active Expired - Fee Related
- 2000-06-20 WO PCT/EP2000/005648 patent/WO2000078462A1/en active Application Filing
- 2000-06-20 CA CA002341422A patent/CA2341422C/en not_active Expired - Fee Related
- 2000-06-20 AU AU52219/00A patent/AU5221900A/en not_active Abandoned
- 2000-06-20 EP EP00936896A patent/EP1105216A1/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11484886B2 (en) | 2018-05-23 | 2022-11-01 | Vermeer Manufacturing Company | Shredder for comminuting bulk material |
| US11819856B2 (en) | 2018-05-23 | 2023-11-21 | Vermeer Manufacturing Company | Shredder for comminuting bulk material |
Also Published As
| Publication number | Publication date |
|---|---|
| DE29910773U1 (en) | 1999-11-18 |
| JP2003502150A (en) | 2003-01-21 |
| JP4585726B2 (en) | 2010-11-24 |
| CA2341422A1 (en) | 2000-12-28 |
| AU5221900A (en) | 2001-01-09 |
| EP1105216A1 (en) | 2001-06-13 |
| WO2000078462A1 (en) | 2000-12-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |