EP3325163A1 - Rotor für einen prallbrecher - Google Patents
Rotor für einen prallbrecherInfo
- Publication number
- EP3325163A1 EP3325163A1 EP16741940.7A EP16741940A EP3325163A1 EP 3325163 A1 EP3325163 A1 EP 3325163A1 EP 16741940 A EP16741940 A EP 16741940A EP 3325163 A1 EP3325163 A1 EP 3325163A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- clamping wedge
- roller body
- crushing roller
- wedge
- 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 description 5
- 235000019738 Limestone Nutrition 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- -1 marl Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 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
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
- B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
- B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
Definitions
- the invention relates to a rotor of an impact crusher.
- a rotor of an impact crusher For crushing materials such as limestone, marl, clay, building rubble or similar mineral materials usually impact crushers are used.
- Known impact crushers have a rotor with uniformly spaced blow bars.
- the rotor cooperates with a second oppositely rotating rotor or baffles arranged laterally of the rotor to comminute the material.
- blow bars are each clamped in a recess in the crushing roller body, for example hydraulically by means of a clamping wedge.
- the blow bars of such an impact crusher are subject to high wear and require regular maintenance.
- the blow bar known impact crusher is either completely replaced, radially offset or rotated, so that the opposite end of the blow bar is exposed to wear.
- Such an impact crusher is known for example from DE 3521588 AI.
- a rotor of an impact crusher comprises a crushing roller body rotatable about its center axis with at least one radial recess, at least one impact strip arranged in each case in a recess of the crushing roller body and at least one clamping wedge arranged in the recess between the impact strip and the crushing roller body, wherein the clamping wedge comprises at least one receiving area in which a loading means for moving the clamping wedge in the radial direction is arranged inwardly.
- radially inward is meant the movement of the clamping wedge in the radial direction towards the central axis of the rotor.
- the crushing roller body is designed substantially cylindrical and rotates during operation of the impact crusher about its central axis.
- the impact crusher preferably has a plurality of blow bars, which are mounted circumferentially at an equal distance from each other on the crushing roller body.
- the crushing roller body of the impact crusher on the one hand has the function of receiving the blow bars and on the other to transfer the moment from the rotor shaft extending through the crushing roller body to the blow bars in order to apply the necessary refractive power.
- the blow bars are arranged in a respective recess in the crushing roller body, protruding beyond the outer circumference of the crushing roller body at a predetermined height.
- the clamping wedge is substantially wedge-shaped, wherein the wedge angle is vorzugswese opened in the radially inward direction.
- the clamping wedge on a first and a second clamping wedge which are preferably arranged side by side in the axial direction.
- a loading means in a receiving region of the clamping wedge for moving the clamping wedge in the radial direction inwardly allows a release of the clamping wedge between the blow bar and the crushing roller body.
- Known impact crushers have only a means for acting on the clamping wedge with a force, such as a hydraulic cylinder, in outward radial direction, which can not reach a release of the wedging of the clamping wedge.
- the urging means is designed such that it acts with a radially inward force upon movement of the urging means in the axial direction along the clamping wedge, the clamping wedge.
- the urging means is in particular designed such that it deflects a force applied in the axial direction in the radial direction, so that the clamping wedge is moved in the radial direction. This allows the force to release the clamping wedge axially, for example, applied laterally of the crushing roller body on this. It is not necessary to apply a force in the radial direction directly to the clamping wedge. This prevents costly opening of a housing mounted around the rotor in order to rise on the crushing roller body and to apply a radial force to the clamping wedge. The arrangement of such a loading means therefore allows a considerable time savings over known impact crushers.
- the biasing means is at least partially wedge-shaped according to another embodiment.
- the wedge shape of the urging means allows a transmission of a force in the axial direction in a simple manner in a force in the radial direction, so that the clamping wedge moves inwardly in the radial direction.
- the wedge angle of the urging means is formed in particular in the axial direction.
- the rotor has one or two clamping wedges, which are arranged next to one another in the axial direction and each have a loading means.
- the clamping wedges with the respective urging means are preferably symmetrical to one another.
- the receiving area extends according to a further embodiment in the axial direction along the clamping wedge.
- the receiving area is a recess in the clamping wedge, which extends along the length of the clamping wedge.
- the receiving area is preferably formed on the side face of the clamping wedge facing in the direction of rotation of the rotor, wherein the loading means is arranged in such a way that it is in connection with the clamping wedge and the crushing roller body.
- the urging means extends according to a further embodiment in the axial direction.
- the Beauftschungsstoff is bar-shaped and has a rectangular cross-section.
- the urging means bears against the crushing roller body and the clamping wedge. This allows movement of the clamping wedge by means of the urging means relative to the crushing roller body.
- the receiving region has at least one contact surface against which the urging means abuts and wherein the abutment surface forms an angle of approximately 5-20 °, preferably 5-10 °, in particular 8 ° to the axial, at least in regions.
- the contact surface points outwards, in particular in the radial direction, and in particular extends over the entire length of the clamping wedge.
- An abutment surface which forms an angle to axial described above has proven to be particularly advantageous because a deflection of the axial force in a radial force over an angle of about 5-20 °, preferably 5-10 °, especially 8 ° particularly easy to implement is.
- the receiving region comprises at least one projection of the clamping wedge, on which the at least one contact surface is arranged.
- the at least one projection is preferably formed on the side surface of the clamping wedge facing in the direction of rotation of the rotor.
- the side surface of the projection pointing in the direction of rotation of the rotor forms a wedge shape, in particular with the opposite side surface pointing counter to the direction of rotation.
- the clamping wedge has according to a further embodiment, a wedge angle of 5-30 °, preferably 10-20 °, in particular 14 °.
- the voltage applied to the blow bar side surface of the clamping wedge in the radial direction and the opposite, applied to the crushing roller body side surface has an angle of 5-30 °, preferably 10-20 °, in particular 14 ° to the radial.
- an actuating element for moving the urging means in the axial direction.
- the actuating element is mechanically, electrically or hydraulically designed according to a further embodiment.
- the adjusting element comprises an adapter, via which blows are introduced in the axial direction into the urging means.
- the actuator is an electric motor or a hydraulic cylinder, which are for example via mechanical elements, such as gears with the Beaufschlagungsstoff in combination.
- Such an actuator allows a simple, in particular automatic, movement of the urging means, so that the clamping wedge can be solved in a simple manner from a tension.
- the beater bar has a trapezoidal recess in particular and the crushing roller body has a trapezoidal projection which bears at least partially in the recess.
- the recess extends in particular along the length of the blow bar in the axial direction and allows a radial fixation of the blow bar in the recess of the crushing roller body.
- the projection in particular does not fill the entire recess of the blow bar.
- the recess and the projection are for example rectangular or round.
- a support device which has at least one support strip, in particular two support strips, which is arranged in the recess next to the projection for fixing the blow bar in the radial direction.
- the support strip extends in particular in the axial direction along the blow bar.
- Fig. 1 shows a perspective view of a rotor of an impact crusher with a plurality of
- FIG. 2 shows a detailed view of the arrangement of a blow bar in a rotor according to FIG. 1.
- 3 shows a perspective view of a clamping wedge with a loading means according to the embodiment of FIGS. 1 and 2.
- Fig. 1 shows a rotor 10 of an impact crusher for crushing limestone, marl, clay, building rubble or similar mineral materials.
- the rotor 10 includes an im
- the rotor 10 rotates in the direction of the arrow, with the blow bars 18, for example, with a further, not shown in FIG. 1, the counter-rotating rotor or cooperate with not shown laterally of the rotor 10 arranged baffle elements.
- the crushing roller body 12 has at its outer periphery six axially extending recesses 16, in each of which a blow bar 18 and a clamping wedge 20 is arranged.
- the substantially plate-shaped impact strips 18 extend in the axial direction over the entire length of the crushing roller body 12, so that they each terminate with the side surfaces of the crushing roller body 12. In the radial direction, the blow bars 18 each extend to about one-third of their height over the outer circumference of the
- Crushing roller body 12 and extend into the crushing roller body 12 at about two-thirds of its height.
- the blow bars 18 are over the circumference of the
- Crushing roller body 12 attachment means 22 attached, which prevent movement of the blow bars 18 in the axial direction.
- the fastening means 22 are preferably on the
- FIG. 2 shows the arrangement of the blow bars 18 in the crushing roller body 12, wherein a blow bar 18 in the crushing roller body 12 is shown enlarged in an enlarged manner relative to FIG. 1.
- the fastening means 22 are not shown in Fig. 2 for the sake of simplicity.
- the clamping wedge 20 in FIG. 2 comprises, by way of example, a first clamping wedge 20a and a second clamping wedge 20b arranged in the axial direction in the recess 16 of the crushing roller body 12.
- Each clamping wedge 20a and 20b has a receiving region 24 which adjoins the in
- Rotational direction facing side surface of the clamping wedge 20 is arranged.
- Receiving area 24 is between the clamping wedge 20 and the crushing roller body 12th
- a loading means 26 is arranged in the receiving area 24 in the receiving area 24 in the receiving area 24 in the receiving area 24 in the receiving area 24 in the receiving area 24 in the receiving area 24 in the receiving area 24 in the receiving area 24 in the receiving area 24 in the receiving area 24 in the receiving area 24 in the receiving area 24 is a loading means 26 is arranged.
- the biasing means 26 is formed substantially in the form of a bar with a quadrangular cross section and extends in axial
- Clamping wedges 20a and 20b bear against the blow bar 18 with their side surface facing the direction of rotation of the rotor 10.
- the opposite, facing in the direction of rotation side surface of the clamping wedge 20 a and 20 b abuts with a radially inward region of the crushing roller body 12 and with the receiving portion 24 on the biasing means 26 at.
- the abutting on the blow bar 18 side surface of the clamping wedge 20 a, 20 b and the voltage applied to the crushing roller body 12 opposite side of the clamping wedge 20 a, 20 b form an angle of about 5-30 °, preferably 10-20 °, in particular 14 ° to each other, wherein the Clamp wedge 20a, 20b in the radial direction outwardly wedge-shaped.
- the clamping wedge 20a, 20b further comprises a plurality of hydraulic cylinders, which are attached to the radially inwardly facing underside of the clamping wedge and abut in the recess 16 on the crushing roller body 12.
- each clamping wedge 20a, 20b at least two hydraulic cylinders 28, wherein in Fig. 2, only one hydraulic cylinder 28 is shown.
- the blow bar 18 has a trapezoidal recess 32 extending in the axial direction along the length of
- the crushing roller body 12 has a trapezoidal projection which rests in the recess 32 on the beater bar 18 and a smaller size
- a support means 30 is arranged, which have two support strips. The support strips are in the radial direction inwards next to the trapezoidal
- FIG. 3 shows a detailed view of a clamping wedge 20a with a loading means 26 according to FIG. 2.
- the second clamping wedge 20b corresponds symmetrically to the first clamping wedge 20a, so that by way of example only the first clamping wedge 20a is referred to is explained on Figure 3.
- the receiving region 24 of the clamping wedge 20a has two projections which along the rotating direction facing side surface of the clamping wedge 20a are arranged.
- the projections have substantially the same height and each comprise a contact surface 34, 36 against which the biasing means 26 abuts.
- the contact surfaces 34, 36 include the radially outwardly facing surfaces of the projections, which have an inclination angle of about 5-20 °, preferably 5-10 °, in particular 8 ° to the axial.
- the surfaces 38, 40 of the projections pointing in the direction of rotation form an angle of approximately 5-30 °, preferably 10-20 °, in particular 14 °, towards the opposite surface facing the direction of rotation, so that the clamping wedge 20a is wedge-shaped outwardly in the radial direction is.
- In the receiving area 24 is the
- Beauftschungsmittel 26 arranged, which is formed substantially in the form of a beam and extends along the direction of rotation facing side surface of the clamping wedge 20 a.
- the urging means 26 has a smaller length than the clamping wedge 20a and does not extend beyond the clamping wedge 20a.
- the biasing means 26 has two wedge-shaped bearing portions 42, 44 which, with their radially inwardly facing surfaces on the
- Abutment surfaces 34, 36 abut.
- Bearing areas 42, 44 have a corresponding to the contact surfaces 34, 36 formed slope of about 5-20 °, preferably 5-10 °, in particular 8 ° to the axial.
- Support regions 42, 44 are wedge-shaped in the axial direction, in particular in the axial direction towards the adjacent clamping wedge 20b.
- the latter rotates in the direction of the arrow, wherein material is comminuted at the blow bars 18.
- the attachment of the blow bars 18 in a respective recess 16 in the crushing roller body 12 is effected by a movement of the clamping wedge 20 by means of
- Hydraulic cylinder 28 in the radial direction to the outside.
- the wedge shape of the clamping wedge 20 causes a wedge of the clamping wedge 20 between the crushing roller body 12 and the beater bar 18 within the recess 16.
- the biasing means 26 abuts the crushing roller body 12 and the clamping wedge 20 in the wedged state of the clamping wedge and affects the attachment of the beater bar 18th not in the wedged state.
- Support areas 42, 44 moves. Due to the wedge-shaped configuration of the support regions 42, 44 of the clamping wedge 20 is in an axial movement of the urging against the Wedge shape applied with a radially inward force, so that the wedging of the clamping wedge 20 is released in the recess 16.
- the urging means 26 for moving the urging means 26 in the axial direction, for example, it is moved manually by means of hammer blows. For this purpose, a worker strikes side of the rotor 10 on the Beaufscherungsffen and triggers the wedging of the clamping wedge.
- the movement of the biasing member 26 may further be mechanical, hydraulic or electrical.
- the blow bar 18 After loosening the wedging the blow bar 18 can be moved in the radial direction and, for example, rotated or radially offset. For radial displacement, the support strips of the support means 30 are removed and the blow bar 18 moves into the corresponding radial position. Subsequently, the support strips are arranged correspondingly in the recess 32 adjacent to the projection of the crushing roller body 12.
- the blow bar 18 can be fixed with the support means 30 shown by way of example in three different radial positions.
- a rotor 10 with the structure described above allows easy release of the
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015213963.8A DE102015213963A1 (de) | 2015-07-23 | 2015-07-23 | Rotor für einen Prallbrecher |
| PCT/EP2016/067548 WO2017013251A1 (de) | 2015-07-23 | 2016-07-22 | Rotor für einen prallbrecher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3325163A1 true EP3325163A1 (de) | 2018-05-30 |
| EP3325163B1 EP3325163B1 (de) | 2019-05-01 |
Family
ID=56511576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16741940.7A Not-in-force EP3325163B1 (de) | 2015-07-23 | 2016-07-22 | Rotor für einen prallbrecher |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20180200722A1 (de) |
| EP (1) | EP3325163B1 (de) |
| CN (1) | CN107835716A (de) |
| DE (1) | DE102015213963A1 (de) |
| WO (1) | WO2017013251A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB559345A (en) * | 1942-12-22 | 1944-02-15 | Nordberg Manufacturing Co | Improvements in or relating to impact members and impact crushers employing such members |
| DE2148752C3 (de) * | 1971-09-30 | 1979-11-22 | Hazemag Dr. E. Andreas Gmbh & Co, 4400 Muenster | Einrichtung zum Festlegen von Schlagleisten in Prallmühlenrotoren |
| DE8012521U1 (de) * | 1980-05-08 | 1980-08-21 | Hazemag Dr. E. Andreas Gmbh & Co, 4400 Muenster | Prallmuehlenrotor |
| DE3334783A1 (de) * | 1982-09-28 | 1984-03-29 | Pallmann Maschinenfabrik GmbH & Co KG, 6660 Zweibrücken | Halterung fuer nachstellbare schlagplatten an schlaegerrotoren von zerkleinerungsmaschinen |
| DE3521588A1 (de) | 1985-06-15 | 1986-12-18 | O & K Orenstein & Koppel Ag, 1000 Berlin | Vorrichtung zum festlegen von schlagleisten in prallmuehlenrotoren |
| US4925114A (en) * | 1988-04-15 | 1990-05-15 | Cedarapids, Inc. | Impeller bar installation and repositioning means for impact crushers having "open" type rotors |
| DE59100297D1 (de) * | 1990-03-01 | 1993-09-23 | Masch Service Gmbh | Einrichtung zum festlegen von schlagleisten in randausschnitten von prallmuehlenrotoren. |
| CN201659001U (zh) * | 2010-04-26 | 2010-12-01 | 海盐县通惠地质矿山机械有限公司 | 反击式破碎机的转子装置 |
| CN201807406U (zh) * | 2010-05-13 | 2011-04-27 | 上海东泷重型机械有限公司 | 具有板锤锁紧装置的反击式破碎机 |
-
2015
- 2015-07-23 DE DE102015213963.8A patent/DE102015213963A1/de not_active Ceased
-
2016
- 2016-07-22 US US15/743,598 patent/US20180200722A1/en not_active Abandoned
- 2016-07-22 CN CN201680035311.9A patent/CN107835716A/zh active Pending
- 2016-07-22 EP EP16741940.7A patent/EP3325163B1/de not_active Not-in-force
- 2016-07-22 WO PCT/EP2016/067548 patent/WO2017013251A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN107835716A (zh) | 2018-03-23 |
| WO2017013251A1 (de) | 2017-01-26 |
| EP3325163B1 (de) | 2019-05-01 |
| US20180200722A1 (en) | 2018-07-19 |
| DE102015213963A1 (de) | 2017-01-26 |
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