EP1454679B1 - Dispositif de tamisage - Google Patents

Dispositif de tamisage Download PDF

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Publication number
EP1454679B1
EP1454679B1 EP04450042A EP04450042A EP1454679B1 EP 1454679 B1 EP1454679 B1 EP 1454679B1 EP 04450042 A EP04450042 A EP 04450042A EP 04450042 A EP04450042 A EP 04450042A EP 1454679 B1 EP1454679 B1 EP 1454679B1
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EP
European Patent Office
Prior art keywords
vibrating body
screening apparatus
eccentric
elastic
crossmembers
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 - Lifetime
Application number
EP04450042A
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German (de)
English (en)
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EP1454679A1 (fr
Inventor
Peter Schöberl
Stefan Ebenbauer
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Binder und Co AG
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Binder and Co AG
Binder und Co AG
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Publication of EP1454679A1 publication Critical patent/EP1454679A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/48—Stretching devices for screens
    • B07B1/485—Devices for alternately stretching and sagging screening surfaces

Definitions

  • the invention relates to a screening device with a first oscillating body, which is provided with first cross members, and a second oscillating body, which is provided with second cross members, which first and second cross members are arranged alternately and have clamping devices, so that elastic Siebbeläge between each first and ever a second cross member can be clamped, and a drive unit which is directly coupled to the first oscillating body and over which the first oscillating body is forcibly guided, so that the clamped elastic Siebbeläge between a stretched and a compressed position are reciprocated.
  • Such a sieve device such as in the AT 379 088 B is shown prevented by the generation of vibrations in the Siebbelägen an otherwise with time taking place the sieve holes through the material to be screened.
  • the Siebbeläge juxtaposed to a Siebbahn periodically change between the stretched and the compressed layer back and forth and thereby cause an extraordinary high acceleration of the screenings in the vertical direction, which ensures that the Siebbeläge constantly kept free of deposits even at high moisture content and long sieve duration become.
  • a first oscillating body forming support structure is excited with first cross members by a drive unit to circular movements, wherein the support structure is connected to a mass portion, which forms the second vibrating body and is provided with second cross members, via a spring element.
  • the second vibrator is positively urged against the first vibrator by means of an eccentric shaft, and the first vibrator and the second vibrator are interconnected by at least one elastic coupling which elastically elastically couples the first and second vibrators substantially along a coupling axis vibration coupling.
  • Such screening devices are from the DE 1 206 372 B and the EP 0 208 221 A2 known.
  • each driving torque exerted on the first oscillating body always acts with respect to the second oscillating body, and therefore the amplitude of the movement remains substantially constant regardless of the load.
  • the object of the invention is therefore to provide a screening device of the aforementioned type, with which also elastic couplings between two oscillating bodies are possible, whose relative movements go beyond a linear movement. According to the invention, this is achieved in that the at least one elastic coupling element elastically couples the first and the second oscillating body along at least one further coupling axis.
  • a simple design of the inventive coupling element can be achieved if the further coupling axis is oriented normal to the coupling axis.
  • a possible embodiment of the inventive coupling element may now consist in that the at least one elastic coupling element comprises a leaf spring and two shear elastic elements, wherein the two shear elastic elements at one end of the leaf spring and on opposite sides thereof with this and with one of the outer cheeks of the first oscillating body are connected and the other end of the leaf spring is connected to one of the inner cheeks of the second oscillating body or vice versa. Movements normal to the leaf spring axis are compensated by this during movements along the leaf spring axis of the leaf spring end mounted shear elastic elements compensate.
  • the at least one elastic coupling element comprises an annular, elastic element which is surrounded on its outer circumference by a ring outer diameter adapted, hollow cylindrical holder and engages in its inner circumference adapted to the ring inner diameter cylindrical Konsolelement wherein the hollow cylindrical holder is connected to one of the outer cheeks of the first oscillating body and the cylindrical Konsolelement with one of the inner cheeks of the second oscillating body or vice versa.
  • the annular elastic element may be formed as a cylindrical ring whose thickness between the ring inner diameter and the ring outer diameter has a constriction, wherein the ratio of outer ring diameter to inner ring diameter greater than 2.5 is. With the help of the constriction, the spring stiffness can be influenced.
  • the at least one elastic coupling element may comprise an outer console element and a coaxially arranged inner console element projecting therein, wherein tension and compression springs are arranged parallel to the coupling axis and parallel to the normal further coupling axis of the elastic coupling element between opposing surfaces of the inner coupling element. and outer console element.
  • a further embodiment of the invention may consist in that the at least one elastic coupling element comprises a bracket angle and an intermediate frame enclosing this, wherein shear elastic elements along the coupling axis of the elastic coupling element between opposing surfaces of the bracket angle and the intermediate frame are arranged, and further shear elastic Elements along the further coupling axis of the elastic coupling element between opposing surfaces of the intermediate frame and positioned outside the intermediate frame support brackets are arranged, and that the bracket angle with one of the inner cheeks of the second oscillating body and the support brackets are connected to one of the outer cheeks of the first oscillating body.
  • Console angle, intermediate frame and support bracket allow the clamping of the push-elastic elements effectively along the two coupling axis.
  • the use of shear elastic elements results in a very robust and reliable coupling between the two oscillating bodies.
  • a technically simple to implement form of the drive unit can be formed in a further development of the invention by a rotary drive unit, preferably by a motor.
  • the drive shaft of the motor is connected to an eccentric shaft, and that the eccentric shaft comprises at least one eccentric crank comprehensive single eccentric, and that the eccentric crank is coupled to the first oscillating body and the Eccentric shaft is guided in the second oscillating body.
  • a single eccentric can be made relatively narrow, whereby the overall width of the device according to the invention can be kept small.
  • a stock exchange can be carried out in a simple manner, but the bearing diameter is relatively large and requires correspondingly large recesses.
  • An alternative embodiment of the invention may be that, furthermore, the second oscillating body is directly coupled to the drive unit or another drive unit and positively guided by it.
  • the positive guidance of the two oscillating bodies required for the sieving process can be produced according to a further embodiment of the invention in that the drive shaft of the motor is connected to an eccentric shaft, which is directly coupled to both the first and the second oscillating body.
  • both oscillating bodies can be driven via a common drive shaft, so that the provision of a further drive unit is not necessary.
  • the eccentric shaft may comprise at least one of a first and a second eccentric crank composite double eccentric, wherein the first eccentric crank with the first oscillating body and the second eccentric crank is coupled to the second oscillating body.
  • the double eccentric With the help of the double eccentric, the circular movements of the two oscillating bodies are offset from one another such that the cross members connected to them cause the screening of the screen coverings in a suitable manner.
  • the use of a double eccentric brings compared to a single eccentric smaller diameter dimensions, bearing replacement is more complex. Single eccentric and double eccentric but cause the same relative movement between the two oscillating bodies.
  • the eccentricity e of the at least one single eccentric or double eccentric can be adjusted in a predetermined range.
  • first and the second eccentric crank of the double eccentric are offset by 180 ° relative to the eccentric shaft, the relative movement between the two oscillating bodies can be maximized. However, if necessary, another value of the offset between the eccentric cranks may be selected.
  • a further variant of the invention can consist in that the second oscillating body is arranged within the first oscillating body.
  • the first oscillating body is formed by two parallel outer cheeks, which are interconnected by the first cross member
  • the second oscillating body is formed by two arranged inside the parallel outer cheeks, parallel inner cheeks, which through the second Cross members are interconnected and which in turn are arranged parallel to the two outer cheeks.
  • the upper edges of the two inner cheeks in each case angled, and rest the second cross member on the angled upper edges.
  • a development of the invention may consist in that the eccentric shaft is normal to the two outer cheeks and the two inner cheeks through this extends through and has two double eccentric, wherein the first cranks of the double eccentric are received in first bearings of the outer cheeks and the second cranks of the double eccentric in second bearings of the inner cheeks.
  • the introduction of the drive torque takes place approximately in the center of gravity of the inventive device, the eccentric shaft with the two double eccentrics approximately in the longitudinal center and at half the height of the screening device transverse to the longitudinal extent of the same.
  • a structurally simple and yet effective bearing of the first oscillating body can be achieved in that the two outer cheeks of the first oscillating body are supported by support spring elements against the ground.
  • each screening device is subjected to a heavy load by the material to be screened in from above, which results in a very great wear of the screen lining, which leads to a deterioration of the screen quality.
  • an at least partially unperforated, preferably concavely curved feed surface can be provided in the feed area, against which the screen coverings clamped in the alternately arranged cross members of the first and second oscillating bodies are directly adjacent.
  • the first oscillating body in the task area have at least two task cross member between which one or more coverings, preferably unperforated Siebbelägen can be clamped, which the task area form.
  • the dispensing area is also subject to increased mechanical stress, which is why it is advantageous if, in the dispensing area, a substantially horizontal support surface is formed on which a screen covering is clamped on one side in one of the transverse beams of the first vibrating body.
  • the in the 3, 4 and 5 The screening device shown has a first oscillating body 1 with first transverse beams 8 and a second oscillating body 2 with second transverse beams 9 which, during operation, set a screen web formed from a plurality of screen linings 21 into oscillation.
  • each two Siebbeläge 21 are mounted with their ends equipped for this purpose and fixed by driving a wedge strip 22 each form-fitting.
  • a drive unit which is formed by a rotary drive unit, preferably a motor 3, is coupled directly to the first oscillating body 1.
  • a drive form of this kind is in fig.20 shown as a detail, the remaining part of the device corresponds to that of 3, 4 and 5 ,
  • the drive shaft 13 of the motor 3 is connected to an eccentric shaft 6, which has at least one simple eccentric comprising an eccentric crank 33, which is coupled to the first oscillating body 1 via a bearing 35.
  • the eccentric shaft 6, however, is guided in a bearing 36 of the second oscillating body 2, so that the torque acting on the first oscillating body 1 is exerted correspondingly with respect to the second oscillating body 2.
  • Figure 21 shows the reversal of the in fig.20 shown drive principle, which also falls under the Schutzunmfang the invention, wherein the eccentric crank 33 is coupled via the bearing 36 with the second oscillating body 2 and the eccentric shaft 6 is guided in the bearing 35 of the first oscillating body 1.
  • a double eccentric is used, wherein the second vibrating body 2 with the drive unit, the motor 3 is directly coupled and forcibly guided over this.
  • the second oscillating body 2 can be forcibly guided via another drive unit, a movement of the two Oscillating body 1, 2 via a common drive unit 3 is less expensive and results in a better vibration behavior of the screening device.
  • the preferred operating frequency of the screening device according to the invention is achieved at a speed of rotation of the motor 3 in the range of 400 to 1000 U / min.
  • the drive shaft 13 of the motor 3 is in 3 and 4 connected to the eccentric shaft 6, which is directly coupled to both the first 1 and the second vibrating body 2.
  • the arrangement of the second oscillating body 2 within the first oscillating body 1 no additional openings for the cross member bushings are required and it is therefore a dustproof and waterproof design of the screening device according to the invention possible.
  • the first oscillating body 1 by two parallel outer cheeks 11, which are interconnected by the first cross member 8, and the second oscillating body 2 by two arranged within the parallel outer cheeks 11, parallel inner cheeks 12, which are interconnected by the second cross member 9 and which in turn are arranged parallel to the two outer cheeks 11.
  • the first 1 and the second oscillating body 2 can be parallel Perform rotational movements, so that a suitable stretching and compression movement of the individually clamped Siebbeläge 21, which may be made of plastic, rubber or a similar material, can be caused, whereby highest accelerations of the Siebbelägen 21 can be transferred to the screenings.
  • a peculiarity of the construction of the 3, 4 and 5 shown device is given by the attachment of the first and second cross member 8, 9. While the first cross member 8 are connected with their front side blunt on the inside of the outer cheeks 11 with these, the second cross member 9 are on the angled upper edges of the two inner cheeks 12 and are connected by transverse plates with the inside of the inner cheeks 12. As a result, the structure of the inner cheeks 12 is simplified insofar as no recesses for the movement stroke of the first cross member 8 must be provided in these.
  • the eccentric shaft 6 extends normal to the two outer cheeks 11 and the two inner cheeks 12 therethrough and has two double eccentric 4, 5 with first cranks 30 and second cranks 31, which with the first and the second oscillating body. 1 , 2 are coupled. Any other mechanically equivalent arrangement may be chosen which serves the same purpose.
  • the first cranks 30 of the double eccentrics 4, 5 are received in first bearings 35 of the outer cheeks 11 and the second cranks 31 of the double eccentrics 4, 5 in second bearings 36 of the inner cheeks 12.
  • the double eccentrics 4, 5 connected to both oscillating bodies 1, 5 introduce a circular, positively driven movement into each of them.
  • the first 30 and the second eccentric crank 31 are offset relative to the eccentric shaft 6 by 180 °.
  • These Displacement causes in the operating state of the screening device according to the invention an increased relative movement or amplitude of the oscillating body 1, 2.
  • Per revolution of the eccentric shaft 6, there is ever once for upsetting and stretching the Siebbeläge 21st This process causes the so-called trampoline effect, by which acceleration values up to 55g are transferred to the screenings. Measured variables for the screening performance and the screening quality can be derived from the accelerations achieved.
  • the eccentricity e ( Figure 4 ) of the double eccentric 4, 5 is adjustable in a predetermined range by the double eccentric 4, 5 are attachable as interchangeable sockets on the eccentric shaft 6.
  • the operating point of the device according to the invention can be adjusted as needed.
  • the right choice of the frequency and the vibration amplitude of the screen vibration is decisive for the quality of the screening result.
  • the eccentricity e1 can be varied, the use of the single eccentric results in a narrower design, but requires a larger bearing diameter than a double eccentric.
  • eccentric shaft 6 for driving the first and second oscillating bodies 1, 2, but it has been found that an eccentric shaft 6 extending approximately through the center of gravity causes no or only a few disturbing oscillation resonances.
  • the eccentric shaft 6 therefore preferably extends with the two double eccentrics 4, 5 approximately in the longitudinal center and on half height of the screening device transverse to the longitudinal extent of the same.
  • the two outer cheeks 11 of the first oscillating body 1 are supported by support spring elements 20 with respect to the ground, which receive the oscillatory movement of the first oscillating body 1.
  • an at least partially uncalculated, preferably concavely curved feed surface 39 is provided, to which the in the alternately arranged cross member 8, 9 of the first 1 and second oscillating body 2 clamped screen coverings 21 directly adjacent, as from Figure 6 evident. Due to the concave shape of the feed surface 39, the material to be screened from above (arrow 16) is moved in the direction of the screen coverings 21. In order to avoid laying or ingrowth of sieve holes in this highly stressed part of the device, the application surface 39 is executed without being perforated.
  • the first oscillating body 1 has for this purpose in the task area 17 at least two task cross member 15 ( Fig.6, 7 ), between which one or more coverings, preferably unperforated screen coverings 22 can be clamped, which form the task surface 39.
  • the delivery area 18 in which a substantially horizontal support surface 26 is formed, on which a one-sided in one of the cross member 8 of the first oscillating body 1 clamped screen covering 27 extends, over which the remaining in the screening process oversize in the direction of arrow 28th is transported away.
  • Fig.1 and 2 show an embodiment in which the entire screening device according to the invention is held by support bracket 38 in an inclined position to promote the movement of the screenings from the feeding area 17 through the screening device in the direction of the discharge area 18.
  • the motor 3 is positioned on a support frame 39 in an elevated position relative to the ground.
  • the realization of a defined movement sequence of the second oscillating body 2, which is anchored only via the shaft bearing, is achieved by a coupling of the first and second oscillating bodies 1, 2 via one or more elastic coupling elements 70, 71, 72, 73, as in FIGS Fig.12 to 19 exemplified, guaranteed.
  • the spring constant of the coupling elements is defined.
  • the coupling of the second oscillating body 2 to the first oscillating body 1 by the elastic coupling element 70, 71, 72, 73 causes the forces resulting from the oscillating body movements to be recorded, stored and in turn delivered to the oscillating bodies 1, 2, which minimizes the driving forces is being used.
  • the first and the second vibrating body 1, 2 by the elastic coupling element 70, 71, 72, 73, as shown in the Fig.12 to 19 is coupled along a coupling axis 107 and along at least one further coupling axis 108 elastically coupled.
  • the elastic coupling element 70 has a leaf spring 80, which is arranged with its main sides normal to one of the inner cheeks 12 of the second oscillating body 2 and one of the outer cheeks 11 of the first oscillating body 1 and two shear elastic elements 82, for example Schubgummiblöcke, wherein the two shear elastic elements 82 are connected at one end of the leaf spring 80 and on opposite sides thereof with this and with the one outer cheek 11.
  • two shear elastic elements 82 are connected at one end of the leaf spring 80 and on opposite sides thereof with this and with the one outer cheek 11.
  • bolted to the outer cheek 11 angles 81 are bolted to the push-elastic elements 82 and the intermediate leaf spring end.
  • the other end of the leaf spring 80 is connected via a bracket 83 with an inner cheek 12, preferably screwed.
  • the other end of the leaf spring 80 with the one outer cheek 11 and the one end of the leaf spring 80 may be connected together with the two shear elastic elements 82 with the one inner cheek 12.
  • the elastic coupling element 71 comprises an annular, elastic element 90, which is surrounded on its outer periphery by a hollow cylindrical holder 91, 94 adapted to the ring outer diameter. In its inner circumference engages a matched to the ring inner diameter cylindrical bracket member 92, wherein the hollow cylindrical bracket 91, 94 with one of the outer cheeks 11 of the first oscillating body 1 and the cylindrical bracket member 92 with one of the inner cheeks 12 of the second oscillating body 2 or vice versa, in particular screwed is.
  • the annular, elastic element 90 is formed as a cylindrical ring whose thickness between the ring inner diameter d and the outer ring diameter D has a constriction, wherein the ratio of outer ring diameter D to inner ring diameter d is greater than 2.5.
  • this can be vulcanized outwardly and inwardly onto an outer 98 and inner metal ring 99, for example, so that a non-detachable connection results, wherein the inner metal ring 99, for example, by a light press fit is firmly connected to the cylindrical bracket member 92.
  • the outer metal ring 99 is so pressed with the annular elastic member 90 in the hollow cylindrical holder 91, 94, that the outer metal ring 99 is fixedly connected thereto and in the annular elastic member 90 a along its outer circumference radially inwardly directed Adjusting bias, which ensures that the annular elastic element 90 is set in the plane of motion by the relative movement of the two oscillating bodies 1, 2 in any direction under a tensile stress.
  • the movement stroke can be eg 5 to 20mm.
  • the oscillating body 1 with the annular member 90 and this with the vibrating body 2 is firmly connected, so that the annular member 90 while operating the device according to the invention absorbs and releases energy by the relative movements, but does not perform any rotational movement relative to the vibrating body 1 and 2.
  • a plurality of openings 97 for influencing its spring stiffness are formed in the annular, elastic element 90 in the thickness direction.
  • the elastic coupling element 72 comprises a box-shaped mecanickonsolelement 101 and projecting into this, coaxially arranged tubular mecanickonsolelement 102, wherein parallel to the coupling axis 107 and parallel to the normal further coupling axis 108 of the elastic coupling element 72 compression and compression springs 103, 104 are disposed between opposite surfaces of the inner 102 and mecanickonsolelements 101.
  • the tension and compression springs 103, 104 thus run perpendicular to one another, so that both components of the movement in the vertical and in the horizontal direction are formed as elastic deformations in the direction of the normal axes 107, 108 corresponding to the respective elastic constants of the tension and compression springs 103, 104 ,
  • the embodiment according to the Fig.18, 19 oriented to elastic shear deformation of the elastic coupling element 73, which comprises a bracket angle 113 and an intermediate frame 112 enclosing this wherein along the coupling axis 107 of the elastic coupling member 73 between opposing surfaces of the bracket 113 and the intermediate frame 112, shear elastic elements 114 are arranged, and along the further coupling axis 108 of the elastic coupling member 73 between opposing surfaces of the intermediate frame 112 and outside of the intermediate frame 112nd Positioned support brackets 110 more shear elastic elements 111 are arranged.
  • the bracket angle 113 is connected to one of the inner cheeks 12 of the second oscillating body 2, in particular screwed and it are the support bracket 110 connected to one of the outer cheeks 11 of the first oscillating body 1, in particular screwed.

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  • Combined Means For Separation Of Solids (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Claims (23)

  1. Dispositif de tamisage comprenant un premier corps oscillant (1) avec des premières traverses (8), et un second corps oscillant (2) avec des secondes traverses (9), lesquelles premières et secondes traverses (8, 9) sont disposées en alternance et comprennent des dispositifs de serrage (23), afin de pouvoir serrer des revêtements de tamisage élastiques (21) entre chaque première (8) et chaque seconde traverse (9), et une unité d'entraînement (3), qui est couplée directement au premier corps oscillant (1) et par laquelle le premier corps oscillant (1) est guidé de manière forcée, de telle sorte que les revêtements de tamisage (21) élastiques serrés sont animés d'un mouvement de va-et-vient entre une position étendue et une position comprimée, le second corps oscillant (2) étant guidé de manière forcée en face du premier corps oscillant (1) au moyen d'un arbre d'excentrique (6), et le premier corps oscillant (1) et le second corps oscillant (2) étant reliés l'un à l'autre par au moins un élément de couplage élastique (70, 71, 72, 73), qui couple en oscillation élastique les premier et second corps oscillants (1, 2) sensiblement le long d'un axe de couplage (107), caractérisé par le fait que le ou les éléments de couplage élastique (70, 71, 72, 73) couplent en oscillation élastique le premier et le second corps oscillant (1, 2) le long d'au moins un autre axe de couplage (108).
  2. Dispositif de tamisage selon la revendication 1, caractérisé par le fait que l'autre axe de couplage (108) est orienté perpendiculairement à l'axe de couplage (107).
  3. Dispositif de tamisage selon l'une des revendications 1 ou 2, caractérisé par le fait que le ou les éléments de couplage élastique (70) comprennent un ressort à lame (80) et deux éléments élastiques en cisaillement (82), les deux éléments élastiques en cisaillement (82) étant reliés, au niveau d'une extrémité du ressort à lame (80) et du côté opposé de celui-ci, à celui-ci et à l'une des joues externes (11) du premier corps oscillant (1), et l'autre extrémité du ressort à lame (80) étant reliée à l'une des joues internes (12) du second corps oscillant (2), ou réciproquement.
  4. Dispositif de tamisage selon la revendication 1, caractérisé par le fait que le ou les éléments de couplage élastique (71) comprend un élément élastique annulaire (90), qui est entouré sur sa circonférence externe par un élément de maintien cylindrique creux (91) ajusté au diamètre annulaire externe (D), et est en prise sur sa circonférence interne avec un élément de console cylindrique (92) ajusté au diamètre annulaire interne (d), l'élément de retenue cylindrique creux (91) étant relié à l'une des joues externes (11) du premier corps oscillant (1) et l'élément de console cylindrique (92) étant relié à une des joues internes (12) du second corps oscillant (2) ou réciproquement.
  5. Dispositif de tamisage selon la revendication 4, caractérisé par le fait que l'élément élastique annulaire (90) se présente sous la forme d'une bague cylindrique dont l'épaisseur comprend un amincissement entre le diamètre annulaire interne (d) et le diamètre annulaire externe (D), le rapport du diamètre annulaire externe (D) de la bague au diamètre annulaire interne (d) de la bague étant supérieur à 2,5.
  6. Dispositif de tamisage selon l'une des revendications 1 ou 2, caractérisé par le fait que le ou les éléments de couplage élastique (72) comprennent un élément de console externe (101) et un élément de console interne (102) disposé coaxialement, faisant saillie dans celui-ci, des ressorts de traction et de compression (103, 104) étant disposés parallèles à l'axe de couplage (107) et parallèles à l'autre axe de couplage (108) perpendiculaire à celui-ci de l'élément de couplage élastique (72), entre des surfaces opposées de l'élément de console interne (102) et externe (101).
  7. Dispositif de tamisage selon l'une des revendications 1 ou 2, caractérisé par le fait que le ou les éléments de couplage élastique (73) comprennent une équerre de console (113) et un cadre intermédiaire (112) entourant celle-ci, les éléments élastiques en cisaillement (114) étant disposés le long de l'axe de couplage (107) de l'élément de couplage élastique (73) entre des faces opposées de l'équerre de console (113) et du cadre intermédiaire (112), et d'autres éléments élastiques en cisaillement (111) étant disposés le long de l'autre axe de couplage (108) de l'élément de couplage élastique (73) entre des faces opposées du cadre intermédiaire (112) et des équerres de support (110) positionnées à l'extérieur du cadre intermédiaire (112), et par le fait que l'équerre de console (113) est reliée à l'une des joues internes (12) du second corps oscillant (2) et l'équerre de support (110) est reliée à l'une des joues externes (11) du premier corps oscillant (1).
  8. Dispositif de tamisage selon l'une des revendications 1 à 7, caractérisé par le fait que l'unité d'entraînement est formé par une unité d'entraînement en rotation, de préférence par un moteur (3).
  9. Dispositif de tamisage selon l'une des revendications 1 à 8, caractérisé par le fait que l'arbre d'entraînement (13) du moteur (3) est relié à un arbre d'excentrique (6) et que l'arbre d'excentrique (6) comprend au moins un excentrique simple comprenant une manivelle d'excentrique (33), et que la manivelle d'excentrique (33) est couplée au premier corps oscillant (1) et l'arbre d'excentrique (6) est guidé dans le second corps oscillant (2).
  10. Dispositif de tamisage selon l'une des revendications 1 à 8, caractérisé par le fait qu'en outre, le second corps oscillant (2) est couplé directement à l'unité d'entraînement (3) ou à une autre unité d'entraînement et est guidé de manière forcée par celle-ci.
  11. Dispositif de tamisage selon la revendication 10, caractérisé par le fait que l'arbre d'entraînement (13) du moteur (3) est relié à un arbre d'excentrique (6), qui est couplé directement non seulement au premier (1) mais aussi au second corps oscillant (2).
  12. Dispositif de tamisage selon la revendication 11, caractérisé par le fait que l'arbre d'excentrique (6) comprend au moins un double excentrique (4, 5) assemblé à partir d'une première (30) et d'une seconde manivelle d'excentrique (31), la première manivelle d'excentrique (30) étant couplée au premier corps oscillant (1) et la seconde manivelle d'excentrique (31) étant couplée au second corps oscillant (2).
  13. Dispositif de tamisage selon l'une des revendications 9 à 12, caractérisé par le fait que l'excentricité (e, e1) du ou des excentriques simples ou du ou des doubles excentriques (4, 5) est ajustable dans une plage prédéfinie.
  14. Dispositif de tamisage selon la revendication 12, caractérisé par le fait que la première (30) et la seconde manivelle d'excentrique (31) sont décalées de 180 degrés par rapport à l'arbre d'excentrique (6).
  15. Dispositif de tamisage selon l'une des revendications 1 à 14, caractérisé par le fait que le second corps oscillant (2) est disposé à l'intérieur du premier corps oscillant (1).
  16. Dispositif de tamisage selon la revendication 15, caractérisé par le fait que le premier corps oscillant (1) est formé de deux joues externes parallèles (11), qui sont reliées l'une à l'autre par les premières traverses (8), et que le second corps oscillant (2) est formé de deux joues internes (12) parallèles, disposées à l'intérieur des joues externes (11) parallèles, les joues internes (12) étant reliées l'une à l'autre par les secondes traverses (9) et étant de leur côté parallèles aux deux joues externes (11).
  17. Dispositif de tamisage selon la revendication 16, caractérisé par le fait que les bords supérieurs des deux joues internes (12) sont chacun recourbés, et que les secondes traverses (9) reposent sur les bords supérieurs recourbés.
  18. Dispositif de tamisage selon l'une des revendications 12 à 17, caractérisé par le fait que l'arbre d'excentrique (6) s'étend perpendiculairement aux deux joues externes (11) et aux deux joues internes (12) au travers de celles-ci, et comprend deux doubles excentriques (4, 5), les premières manivelles (30) des doubles excentriques (4, 5) étant logées dans des premiers paliers (35) des joues externes (11) et les secondes manivelles (31) des doubles excentriques (4, 5) étant logées dans des seconds paliers (36) des joues internes (12).
  19. Dispositif de tamisage selon la revendication 18, caractérisé par le fait que l'arbre d'excentrique (6) s'étend en ayant les deux doubles excentriques (4, 5) environ au milieu de sa longueur et à la moitié de la hauteur du dispositif de tamisage perpendiculairement à son étendue longitudinale.
  20. Dispositif de tamisage selon l'une des revendications 16 à 19, caractérisé par le fait que les deux joues externes (11) du premier corps oscillant (1) sont appuyées contre le sol par l'intermédiaire d'éléments de ressort de soutien (20).
  21. Dispositif de tamisage selon l'une des revendications précédentes, caractérisé par le fait qu'il est prévu, dans la région d'alimentation (17), une surface d'alimentation (39) au moins par endroits non perforée, de préférence incurvée de façon concave, à côté de laquelle sont disposés sans intermédiaire les revêtements de tamisage (21) serrés dans les traverses disposées en alternance (8, 9) des premier (1) et second (2) corps oscillants.
  22. Dispositif de tamisage selon la revendication 21, caractérisé par le fait que le premier corps oscillant (1) comprend dans la région d'alimentation (17) au moins deux traverses d'alimentation (15), entre lesquelles un ou plusieurs revêtements, de préférence revêtements de tamisage non perforés (22) sont serrés, lesquels forment la surface d'alimentation (39).
  23. Dispositif de tamisage selon l'une des revendications précédentes, caractérisé par le fait que, dans la région d'alimentation (18), une surface de support sensiblement horizontale (26) est formée, sur laquelle s'étend un revêtement de tamisage (27) serré d'un côté dans l'une des traverses (8) du premier corps oscillant (1).
EP04450042A 2003-03-07 2004-03-01 Dispositif de tamisage Expired - Lifetime EP1454679B1 (fr)

Applications Claiming Priority (2)

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AT0034303A AT411874B (de) 2003-03-07 2003-03-07 Siebvorrichtung
AT3432003 2003-03-07

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EP1454679A1 EP1454679A1 (fr) 2004-09-08
EP1454679B1 true EP1454679B1 (fr) 2010-11-03

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AT (2) AT411874B (fr)
DE (1) DE502004011838D1 (fr)

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DE102016011817A1 (de) * 2016-10-05 2018-04-05 Hein, Lehmann Gmbh Spannwellensiebmaschine mit optimierter Siebbelagbefestigung
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EP3714996A1 (fr) * 2019-03-29 2020-09-30 Binder + Co AG Dispositif de tamisage
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CN116060286B (zh) * 2022-12-07 2024-06-11 西南石油大学 含同轴弹性耦合三激振电机的双轴四激振电机椭圆振动筛
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DE1206372B (de) * 1964-09-26 1965-12-09 Albert Wehner Siebrost
AT379088B (de) * 1984-02-10 1985-11-11 Binder Co Ag Siebvorrichtung
DE3524895C1 (de) * 1985-07-12 1986-12-18 Hein, Lehmann AG, 4000 Düsseldorf Siebmaschine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013218003A1 (de) 2013-09-09 2015-03-12 Wacker Chemie Ag Klassieren von Polysilicium
WO2015032584A1 (fr) 2013-09-09 2015-03-12 Wacker Chemie Ag Classification de polysilicium
US10589318B2 (en) 2013-09-09 2020-03-17 Wacker Chemie Ag Classifying polysilicon

Also Published As

Publication number Publication date
DE502004011838D1 (de) 2010-12-16
ATE486670T1 (de) 2010-11-15
ATA3432003A (de) 2003-12-15
AT411874B (de) 2004-07-26
EP1454679A1 (fr) 2004-09-08

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