EP3490714A1 - Brechschwinge und backenbrecher - Google Patents
Brechschwinge und backenbrecherInfo
- Publication number
- EP3490714A1 EP3490714A1 EP17746101.9A EP17746101A EP3490714A1 EP 3490714 A1 EP3490714 A1 EP 3490714A1 EP 17746101 A EP17746101 A EP 17746101A EP 3490714 A1 EP3490714 A1 EP 3490714A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crushing
- rocker
- jaw
- hollow body
- body structure
- 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.)
- Withdrawn
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
Definitions
- the invention relates to a crushing rocker of a jaw crusher and a jaw crusher for crushing rock material.
- Jaw crushers as they are known for example from DE 196 31 023 AI, usually have a first and a second crushing jaw, wherein a crushing jaw is usually stationary and the other is designed as a vibrating crushing jaw. They are used for crushing hard to very hard materials, such as limestone or dolomite. From the material strength result in correspondingly high loads in the jaw crusher, which act in particular on the crushing rocker. To withstand the stresses, the crushing rocker is usually performed as a closed cast iron box, wherein from the casting view in the box a plurality of holes are provided to position the casting cores and hold. However, these holes have been found in the crushing process due to the large forces and stresses that occur as a weak point that lead to damage to the breaker arm.
- the invention is therefore based on the object to design a crushing rocker, in which the stresses occurring in the crushing rocker are reduced.
- the crushing rocker according to the invention of a jaw crusher has a receptacle provided in an upper part of the crushing rocker for oscillating support of the crushing rocker on the jaw crusher and a support region arranged in a lower part of the crushing rocker for supporting the crushing rocker, wherein the rocker for stiffening has a hollow body structure which in cross section at least one rhombus-shaped cell provides.
- the at least one rhombus-shaped cell in cross-section has a direction perpendicular to the longitudinal center plane extending diagonal extending from the first to the second side part. This results in an optimum distribution of the forces and reduction of the stresses.
- the shape of the rhombus has the advantage over the waffle pattern often used so far that the power flow can be distributed very well and thus the stresses arising in the hollow body structure can be reduced.
- results from the at least one rhombus-shaped cell a very torsionally rigid construction, so that the rocker no longer needs to be performed as a closed cast box, but many can be formed unilaterally or both sides open.
- An open design also has the advantage that can be dispensed with holes for the casting cores, creating a vulnerability in known crushing rockers is avoided.
- a rhombus resembles the shape of a growing tree, so that one can speak of a "bionic breaker wing.”
- Rhombus-shaped cells require less mass than a waffle pattern to distribute the forces and keep the stresses in a lower range
- the accessibility of the stiffeners / ribbing makes it possible to check the quality (inspection for voids) of the individual stiffeners, as well as other functions such as mounting options split crushing jaws, are integrated into the support structure.
- the hollow body structure extends from the receptacle to the oscillating mounting of the breaking rocker up to at least the supporting area.
- the hollow body structure can be composed in cross-section of the at least one rhombus-shaped cell and of triangular cells, whereby the hollow body structure extends to side parts.
- the crushing rocker has a longitudinal center plane which extends perpendicular to the oscillating axis of the crushing rocker, wherein the rhombus-shaped in cross section cell is arranged so that the longitudinal center plane forms a plane of symmetry of the rhombic cell. The cell is thus arranged centrally and thus allows a good distribution of the resulting forces, moments and voltages.
- At least two rhombus-shaped cells are provided, which are arranged adjacent to each other in a corner region of the rhomboidal cells such that the longitudinal center plane for each of the two rhombus-shaped cells also forms a plane of symmetry.
- the crushing rocker has a front side for equipping with a crushing jaw, a rear side and a first and a second side part, wherein the hollow body structure can be designed to be open on the front side and / or rear side.
- the invention also relates to a crushing rocker having a front side, a rear side and two side parts, wherein the front side is equipped with a crushing jaw.
- the crushing jaw is supported in a contact region on the hollow body structure, wherein the crushing jaw in this contact region may have a stiffening structure adapted to the hollow body structure, resulting in an optimal dissipation of the forces.
- the crushing rocker can be designed so that it tapers in a wedge shape in the side view from the receptacle for vibrating mounting of the crushing rocker to the support area, whereby mass is saved in the lower area.
- an integral with hollow body structure front plate is provided on the front of the crushing rocker. This serves the additional stiffening of the crushing rocker. If such a front panel is provided, the back is preferably formed open, thereby simplifying the production of the crushing rocker.
- the invention further relates to a jaw crusher for crushing rock material having an inlet for the rock material, an outlet for crushed rock material and a first and second crushing jaw, wherein at least one of the two crushing jaws is designed as a vibrating crushing jaw and the at least one oscillating crushing jaw on a Brechschwinge is attached with the features described above.
- the other crushing jaw can optionally be formed stationary or swinging.
- the other crushing jaw is arranged on a stationary supporting structure, wherein the stationary supporting structure likewise has a hollow structure with at least one rhombus-shaped cell in cross-section.
- FIG. 2a front view of a crushing rocker according to a first
- FIG. 2b is a rear view of the crushing rocker of FIG.
- FIG. 2c three-dimensional representation of the crushing rocker as shown in FIG.
- FIG. 2 d shows a crushing jaw for the crushing rocker according to FIG.
- Fig. 3a is a front view of a crushing rocker according to a second
- 3b is a rear view of the crushing rocker of FIG. 3a
- 3c shows a three-dimensional representation of the breaking rocker according to FIG.
- FIG. 3d shows a crushing jaw for the crushing rocker according to FIG. 3a, FIG.
- FIG. 4a is a front view of a crushing rocker according to a third
- FIG. 4b is a rear view of the crushing rocker of FIG. 4a
- FIG. 4c shows a three-dimensional representation of the breaking rocker according to FIG.
- Fig. 5 is a three-dimensional view of a stationary support structure with crushing jaw.
- Fig. 1 shows a jaw crusher for crushing rock material with an inlet 1 for the rock material, an outlet 2 for crushed rock material and a first and a second crushing jaws 3, 4.
- the first crushing jaw 3 is formed as a vibrating crushing jaw and this is on a crushing rocker 5 mounted.
- the second crushing jaw 4, however, is arranged on a stationary support structure 6.
- the crushing rocker 5 has in an upper part of a receptacle 7 for vibrating mounting of the crushing rocker on the jaw crusher.
- the crushing rocker is driven in this area by means of an eccentric shaft 8.
- a support region 9 is provided on which the crushing rocker is supported on a pressure plate 10 in a conventional manner.
- a tie rod 11 ensures constant contact between pressure plate 10 and crushing rocker 5.
- a crushing gap 12 is formed, in which the rock material to be crushed a compressive stress due to the eccentrically driven first crushing jaw 3 is exposed.
- a first embodiment of the crushing rocker 5 will be explained in more detail with reference to the figures 2a to 2d.
- a hollow body structure 25 which in the illustrated embodiment, a cross-sectionally first and second rhombus-shaped cell 13, 14 provides.
- the remaining region of the hollow body structure is filled with triangular cells 15, so that the hollow body structure 25 extends up to two side parts 16, 17, which delimit the hollow body structure.
- the side parts 16, 17 are in
- the hollow body structure 25 is bounded by the receptacle 7 for the oscillating mounting of the crushing rocker about an oscillating axis 32. Down the hollow body structure 25 is formed open in this embodiment.
- the rhombus-shaped cells 13, 14 are arranged with respect to a perpendicular to the swing axis 32 extending longitudinal center plane 20 of the crushing rocker 5 so that the longitudinal center plane 20 for each of the two rhombic cells 13, 14 also forms a plane of symmetry.
- the two rhombus-shaped cells adjoin one another in a corner region 21 and otherwise extend from one to the other side part 16, 17.
- the hollow body structure is formed open on the front side shown in Fig. 2a and on the back shown in Fig. 2b.
- a lower clamping strip 22 and upper clamping means 23 are provided on the front of the crushing rocker.
- the back of the first crushing jaw 3 is shown, which has a stiffening structure 24 in its contact area with the crushing rocker 5, which is adapted to the hollow body structure 25 of the crushing rocker 5.
- the crushing rocker tapers in the side view of the receptacle 7 for oscillating mounting of the crushing rocker to the support portion 9 wedge-shaped, whereby mass is saved in the lower part of the crushing rocker.
- FIGS. 3a to 3d show a second exemplary embodiment of a breaking rocker 5.
- the difference consists essentially in the fact that the hollow body structure 25 only has a rhombus-shaped cell 26 which is connected to the Pages with triangular cells 27 is complete.
- the rhombus-shaped cell 26 is in turn aligned symmetrically to the longitudinal center plane 20, thereby providing an optimum shape to derive the forces occurring during the crushing process, moments and thereby minimize the stresses.
- the first crushing jaw 3 shown in FIG. 3d in turn has a stiffening structure 29 which is adapted to the hollow body structure of the crushing rocker 5 and which also provides only a rhombus-shaped cell.
- the third embodiment shown in Figures 4a to 4c differs from the first embodiment shown in Figures 2a to 2d essentially only in that the hollow body structure 25 is covered on the back with a rear wall 30, which is preferably in turn formed integrally with the hollow body structure 25 ,
- the hollow body structure is designed to be open on its front side (FIG. 4 a), thereby facilitating the manufacture and later inspection of the breaking rocker by better accessibility.
- the jaw crusher with two movable crushing rockers are to be formed, they can be formed according to the above-mentioned embodiments.
- a crushing jaw is stationary and arranged the other crushing jaw swinging.
- the second crushing jaw 4 is stationary and is supported on a stationary support structure 6, which also has a hollow body structure 31 with at least one rhombus-shaped in cross-section cell (Fig.l and 5).
- the stationary support structure can also have a plurality of rhombus-shaped cells, for example of the type shown in Fig. 2 Brechschwingen.
- the second crushing jaw 4 may also be provided with a stiffening structure similar to the first crushing jaw 2, which is adapted in the contact region with the support structure 6 to the hollow body structure 31 of the support structure.
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 |
---|---|---|---|
DE102016114196.8A DE102016114196A1 (de) | 2016-08-01 | 2016-08-01 | Brechschwinge und Backenbrecher |
PCT/EP2017/069368 WO2018024697A1 (de) | 2016-08-01 | 2017-08-01 | Brechschwinge und backenbrecher |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3490714A1 true EP3490714A1 (de) | 2019-06-05 |
Family
ID=59501450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17746101.9A Withdrawn EP3490714A1 (de) | 2016-08-01 | 2017-08-01 | Brechschwinge und backenbrecher |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3490714A1 (de) |
CN (1) | CN109562386A (de) |
BR (1) | BR112019001878A2 (de) |
DE (1) | DE102016114196A1 (de) |
WO (1) | WO2018024697A1 (de) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2341105A (en) * | 1939-03-13 | 1944-02-08 | John R Kueneman | Crusher |
DE1155662B (de) * | 1961-04-29 | 1963-10-10 | Koeppern & Co K G Maschf | Schwinge fuer Backenbrecher |
IT1239454B (it) * | 1990-03-16 | 1993-11-02 | Loro & Parisini Spa | Frantumatore a mascelle |
DE19631023C2 (de) | 1996-08-01 | 1998-06-04 | Krupp Foerdertechnik Gmbh | Vorrichtung zum Verstellen des Brechspaltes an Backenbrechern |
CN102198410B (zh) * | 2011-03-28 | 2013-01-09 | 浙江黑白矿山机械有限公司 | 一种置有自修齿形破碎副的颚式破碎机 |
CN102259042B (zh) * | 2011-05-01 | 2014-09-10 | 浙江黑白矿山机械有限公司 | 一种具有大咬合力高效颚式破碎机 |
EP2744596B1 (de) * | 2011-08-18 | 2016-05-04 | Metso Minerals, Inc. | Schwinge eines backenbrechers, backenbrecher, brechanlage und brechverfahren |
US8757530B2 (en) * | 2011-08-18 | 2014-06-24 | Metso Minerals, Inc. | Pitman of a jaw crusher, jaw crusher, crushing plant and crushing method |
CN204564210U (zh) * | 2015-04-28 | 2015-08-19 | 杭州琦诚机械制造有限公司 | 一种颚式破碎机的动颚 |
-
2016
- 2016-08-01 DE DE102016114196.8A patent/DE102016114196A1/de not_active Ceased
-
2017
- 2017-08-01 EP EP17746101.9A patent/EP3490714A1/de not_active Withdrawn
- 2017-08-01 CN CN201780048480.0A patent/CN109562386A/zh active Pending
- 2017-08-01 BR BR112019001878A patent/BR112019001878A2/pt not_active IP Right Cessation
- 2017-08-01 WO PCT/EP2017/069368 patent/WO2018024697A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
CN109562386A (zh) | 2019-04-02 |
DE102016114196A1 (de) | 2018-02-01 |
WO2018024697A1 (de) | 2018-02-08 |
BR112019001878A2 (pt) | 2019-05-07 |
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