EP3137216A1 - Brechbacke für einen backenbrecher - Google Patents
Brechbacke für einen backenbrecherInfo
- Publication number
- EP3137216A1 EP3137216A1 EP15716490.6A EP15716490A EP3137216A1 EP 3137216 A1 EP3137216 A1 EP 3137216A1 EP 15716490 A EP15716490 A EP 15716490A EP 3137216 A1 EP3137216 A1 EP 3137216A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crushing
- elements
- jaw
- base plate
- crusher
- 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
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
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/02—Jaw crushers or pulverisers
- B02C1/10—Shape or construction of jaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2210/00—Codes relating to different types of disintegrating devices
- B02C2210/02—Features for generally used wear parts on beaters, knives, rollers, anvils, linings and the like
Definitions
- the present invention relates to a crushing jaw for a jaw crusher, which can be arranged exchangeably on a movable crusher rocker or on a stationary frame part of the jaw crusher, and wherein the crushing jaw has an active crushing jaw surface, can be broken with the crushable material which can be introduced into the jaw crusher.
- US Pat. No. 3,984,058 A shows a crushing jaw arranged on a breaker rocker arm of a jaw crusher, and the crushing jaw has a crushing jaw surface which has a prismatic structure.
- the prism structure is formed by the one-piece, solid-formed crushing jaw with a groove surface, wherein the grooves run approximately inwardly with a triangular cross-section towards a triangle tip. This results in the top of the crushing jaw surface, a prismatic structure with overhead longitudinal edges, and it has been found that a formed in the height direction of the crushing jaw prism structure, for example, but also a wave structure, allows special advantages in the crushing of crushed material.
- the crushing jaws may have a mass of several tons. Consequently, it is no longer possible to solve the crushing jaw with muscle power, so with one or a few people, from the crusher swing or the stationary frame part of the jaw crusher, for example, to exchange a worn crushing jaw for a new crushing jaw.
- Another disadvantage of conventional crushing jaws is that when replacing a worn crushing jaw a large mass of steel must be replaced, but essentially only the active The crushing jaw surface is worn.
- Another disadvantage is that the one-piece crushing jaw must be formed of a single material, for example of a manganese steel.
- DE 10 2012 108 932 A1 shows a crusher rocker arm with two crusher jaws arranged on the crusher rocker, which are wedged on the crusher rocker arm.
- the crushing jaws are arranged one above the other, so that a first crushing jaw is arranged in the upper mouth region of the crushing chamber of the jaw crusher, in which the unbroken crushing material is input, and a further crushing jaw is arranged in the lower region of the crushing chamber and forms with its lower edge the exit region of the crushed crushed material ,
- the individual crushing jaws which has significantly smaller dimensions than the crusher blade itself, can not be replaced manually.
- the object of the invention is the development of a crushing jaw, with which the above-mentioned disadvantages can be overcome.
- the possibility should be created to renew a worn crushing jaw, for example, as part of a maintenance, without having to move large masses.
- the advantageous prism structure of the crushing jaw surface should remain as possible.
- the possibility should be retained that the crushing jaw can be arranged in a conventional manner on the crusher rocker arm or on the frame part of the jaw crusher.
- the invention includes the technical teaching that the crushing jaw has a base plate for placement on the crusher rocker arm or on the stationary frame part, wherein crushing elements are detachably arranged on the base plate and through which the crushing jaw surface is at least partially formed.
- a crushing jaw which is constructed in several parts and has a base plate which can remain on the breaker rocker or on the stationary frame part even during a service, in particular during a renewal of a worn breaking jaw surface. Due to the simple exchange of smaller breaking elements, which may also be moved by hand, due to their lower mass, if necessary by muscular force, ie by hand, the crushing jaw surface can be renewed.
- a prism structure or a wave structure can be formed by the configuration of the crushing-jaw elements.
- the refractive elements may be rod-shaped and / or the refractive elements may be arranged parallel to each other on the base plate to form the crushing jaw surface, so that the crushing elements form in particular a prism structure or a wave structure.
- a rod-shaped breaking element is understood to be any body having a major axis in which the body extends, wherein the cross section with which the body extends along the main axis can be chosen freely, and the cross section can also change along the major axis, for example ,
- the refractive element along the main axis may be uniform or this may, for example, taper.
- the refractive elements can be arranged, for example, with a V-arrangement obliquely alseinender tapered to the base plate.
- the rod shape describes a degree of cleavage of the crushing elements, which are formed, for example, with a slenderness value of 1: 3, preferably 1: 5 and more preferably 1: 10, whereby the ratio of diameter or cross section main dimension is given to the length.
- the crushing jaw according to the invention arises from the fact that a different material can be used for the formation of the base plate than for the formation of the rod-shaped crushing elements.
- the base plate may consist of a manganese steel while the rod-shaped crushing elements consist of XAR400 or XAR600 (material no. 1.8735).
- the crushing elements may also be formed from or comprise a ceramic material, although other particularly hard and wear-resistant materials may be used.
- the rod-shaped crushing elements form wear-resistant replacement parts of the crushing jaw, and if the crushing jaw is worn, only the rod-shaped crushing elements can be exchanged in order to put the crushing jaw with the same base plate back into a substantially new state.
- the rod-shaped elements may have a cross section which is square or, for example, diamond-shaped, so that the prism structure can be formed with a corresponding insertion of the rod-shaped crushing elements. It is also conceivable that the stabformige crushing elements are round and are attached to the base plate, that a (half) wave structure is formed.
- the rod-shaped crushing elements which have a square or diamond-shaped cross-section, can be arranged with an upper longitudinal edge on the base plate.
- the base plate can have receiving pockets in which the rod-shaped breaking elements are embedded. If the rod-shaped crushing elements are formed, for example, with a square cross-section, the receiving pockets can form a triangular longitudinal recess, and the square crushing elements can be inserted with an edge down into the receiving pockets and thus lie positively in this one. Consequently, an upper longitudinal edge is formed, wherein a plurality of rod-shaped breaking elements are fastened parallel to one another on the base plate, so that a plurality of upper longitudinal edges are formed parallel to one another, as a result of which a crushing jaw having a prismatic structure is provided.
- clamping elements may be provided, which are fastened by means of screw elements to form a positive connection with the rod-shaped crushing elements on the base plate.
- the clamping elements for example, through holes have, through which the screw elements are passed, and between the receiving pockets in the base plate threaded holes can be introduced, in which the screw elements can be screwed to the clamping elements, when the stabformischen crushing elements were previously inserted into the receiving pockets.
- the crushing elements can be clamped to the base plate, while they hedge in their associated receiving pockets.
- the stabformigen crushing elements may extend substantially over the entire height of the base plate, and / or wherein the clamping elements between the parallel to each other on the base plate arranged stabformigen crushing elements are arranged and clamp them over their longitudinal edges.
- further clamping elements may be provided on the end sides of the rod-shaped crushing elements, which wed the rod-shaped crushing elements in the base plate. Clamping in the present case is understood to mean a type of fastening with a form-fit connection, in particular as this is also produced by the use of a clamp.
- the frictional connection direction which in the present case corresponds to a head direction and thus is orthogonal to the plane of the base plate, is divided in the present clamping on bevels on the refractive elements, can be amplified by a exercisable on the refractive elements holding force.
- the stabformigen breaking elements may also have a length which corresponds to only a part of the total height of the base plate, wherein two or more rod-shaped breaking elements are arranged in a common longitudinal direction extending to the base plate.
- the height direction of the base plate corresponds to the extension direction of the feed region of the crushed material into the lower crushing gap, and rod-shaped crushing elements in the lower region of the crushing jaw, which are exposed to greater wear, for example, can be replaced more often than rod-shaped crushing elements in the upper mouth region of the crushing space.
- wedge elements can be provided, which are arranged by means of screw elements on the base plate and hold the arranged in a common longitudinal direction rod-shaped crushing elements on their end sides to the base plate.
- the base plate may have an undercut in the manner of a dovetail contour at the upper and lower ends, and the wedge elements may be located between the crushing elements arranged in a common longitudinal direction.
- the wedge elements may have through holes through which the screw elements are passed and in the base plate threaded holes may be provided, into which the screw elements are screwed.
- the wedge element for example, have wedge slopes which correspond to bevelled end sides of the crushing elements, and with a wedge element, for example, two adjacent crushing elements can be wedged to the base plate.
- clamping elements used in connection with the first embodiment which can be arranged between the longitudinally extending rod-shaped breaking elements to attach them to the base plate, can also be used for shortened breaking elements, which are described in connection with the second embodiment.
- FIG. 1 shows an embodiment of a crushing jaw with a base plate and exemplarily three attached to the base plate rod-shaped crushing elements according to a first embodiment
- Figure 2 is a cross-sectional view through the crushing jaw according to the first
- Embodiment in Figure 1, 3 shows a second embodiment of a crushing jaw with a
- FIG. 4 shows a cross-sectional view through the crushing jaw according to FIG. 3.
- FIG. 1 shows a perspective view of a crushing jaw 1 according to a first exemplary embodiment for arrangement on a crusher rocker arm or on a stationary frame part of a jaw crusher.
- the crushing jaw 1 has a base plate 10, and on the crushing jaw surface are receiving pockets 13 for receiving rod-shaped crushing elements 1 first
- the crushing elements 1 1 have a square cross-section and the receiving pockets 13 are designed so that the crushing elements 1 1 can be introduced with an edge of the square cross section lying down in the receiving pockets 13. Consequently, a prism structure is formed on the crushing jaw surface with upper longitudinal edges 12 of the crushing elements 11.
- the crushing elements 1 1 extend substantially over the entire height of the base plate 10 and are fastened with clamping elements 14 on the base plate 10. By the clamping elements 14 screw 15 are passed and screwed into threaded holes 19 which are incorporated in the base plate 10.
- the clamping elements 14 are located between the parallel crushing elements 1 1, and by way of example four clamping elements 14 over the entire length of the crushing elements 1 1 are arranged. In a manner not shown, the crushing elements 1 1 can thereby still be positively keyed via its end faces 18 to the base plate 10 by an undercut or fastened with further clamping elements.
- FIG. 2 shows a cross-sectional view through the crushing jaw 1 according to FIG. 1, and the cross-sectional view shows a plurality of receiving pockets 13 visible side by side in the base plate 10, which have a substantially triangular cross-section.
- the refractive elements 11 can be inserted into the receiving pockets 13 in the orientation shown so that upper longitudinal edges 12 of the refractive elements 11 form a prismatic structure on the crushing jaw surface of the crushing jaw 1.
- the clamping elements 14 are inserted with the guided through the clamping elements 14 screw 15, and the clamping elements 14 clamp the crushing elements 1 1 on their side edges, while the screw 15 are screwed into the threaded holes 19.
- FIG 3 shows another embodiment of a crushing jaw 1 with the features of the present invention, and on the base plate 10 a plurality of crushing elements 1 1 are arranged, which have a length which is shorter than the height of the base plate 10.
- the example shows three in a common Longitudinally arranged rod-shaped crushing elements 1 1, wherein in the same way as already described in connection with the first embodiment, several crushing elements 1 1 are arranged parallel to each other on the base plate 10.
- the crushing elements 1 1 can be secured with wedge elements to the base plate 10 by the wedge elements are screwed via threaded elements in threaded holes 19 and the wedge elements, the crushing elements 1 1 via their end faces 18 form-fitting brace with the base plate 10, as in connection with the following Figure 4 shown in more detail.
- FIG 4 shows a side view of the base plate 10 with arranged above this crushing elements 1 1 to form the crushing jaw 1 according to the embodiment in Figure 3.
- the shortened refractive elements 1 1 extend in a common longitudinal direction and are arranged one behind the other, wherein the front side opposite end sides 18 of the refractive elements 1 1 are arranged spaced from each other. If the crushing elements 1 1 inserted into the receiving pockets 13 in the base plate 10, first, the outer end sides 18 in dovetailed undercuts 20 of the base plate 10 can be positively inserted. Subsequently, the wedge elements 16, are already introduced into the screw 17, between the opposite end sides 18 of Breaking elements 1 1 are used, and the screw 17 are screwed into the threaded holes 19.
- the base plate 10 may be made, for example, as a casting of a simple steel material.
- the crushing elements 1 1, however, which are exposed to the actual wear during operation of the jaw crusher may be formed of a high-strength steel, and crushing elements 1 1, the higher loads are exposed, for example, in the lower region of the crushing chamber with a tapered crushing gap, replaced more frequently be as breaking elements 1 1, which are subjected to a lower load.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014106091.1A DE102014106091A1 (de) | 2014-04-30 | 2014-04-30 | Brechbacke für einen Backenbrecher |
| PCT/EP2015/057817 WO2015165714A1 (de) | 2014-04-30 | 2015-04-10 | Brechbacke für einen backenbrecher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3137216A1 true EP3137216A1 (de) | 2017-03-08 |
| EP3137216B1 EP3137216B1 (de) | 2018-06-06 |
Family
ID=52875147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15716490.6A Active EP3137216B1 (de) | 2014-04-30 | 2015-04-10 | Brechbacke für einen backenbrecher |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3137216B1 (de) |
| DE (1) | DE102014106091A1 (de) |
| WO (1) | WO2015165714A1 (de) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE277247C (de) * | ||||
| GB190909454A (en) * | 1909-04-21 | 1910-01-13 | Samuel Osborn | Improvements in Crushing Machines and in Appliances connected therewith. |
| DE356274C (de) * | 1920-02-19 | 1922-07-20 | Karl Walther | Brecher fuer wuerfelige, moeglichst abfallfreie Zerkleinerung von Hartgestein |
| GB578292A (en) * | 1943-11-13 | 1946-06-21 | Elek Ska Svetsningsaktiebolage | Improvements in or relating to the jaws of stone and similar crushers |
| US2851225A (en) * | 1956-09-25 | 1958-09-09 | Charles A Mcmahan | Removable jaws for rock crusher |
| JPS4275Y1 (de) * | 1964-03-25 | 1967-01-05 | ||
| US3984058A (en) | 1975-11-26 | 1976-10-05 | Barber-Greene Company | Means for holding dies in a jaw crusher |
| DE3722710A1 (de) * | 1987-07-09 | 1989-01-19 | Ernst Wilhelms Kg Hammerwerk U | Brecher oder dergleichen zerkleinerungsvorrichtung |
| BE1007376A6 (nl) * | 1993-08-04 | 1995-05-30 | Schepper Julien De | Breekplaat met vervangbare tanden. |
| CN202028418U (zh) * | 2010-12-09 | 2011-11-09 | 佳木斯大学 | 一种组合式颚板 |
| DE102012108932A1 (de) | 2012-09-21 | 2014-03-27 | Thyssenkrupp Resource Technologies Gmbh | Backenbrecher zur Zerkleinerung von Brechgut |
-
2014
- 2014-04-30 DE DE102014106091.1A patent/DE102014106091A1/de not_active Ceased
-
2015
- 2015-04-10 WO PCT/EP2015/057817 patent/WO2015165714A1/de not_active Ceased
- 2015-04-10 EP EP15716490.6A patent/EP3137216B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015165714A1 (de) | 2015-11-05 |
| EP3137216B1 (de) | 2018-06-06 |
| DE102014106091A1 (de) | 2015-11-05 |
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