• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a tensioning corrugated screen with a sieve surface running obliquely to the vertical, with a frame (13) which can be set in motion by a drive, in which transverse bars (1, 12) carrying a screen lining (3) are fastened, each second transverse rod ( 1) is displaceably movably mounted in a circular arc or approximately linear reciprocating motion. The movement takes place when swinging the frame in that the main axis of inertia of each of the movable cross bars (1) distance from the instantaneous axis of rotation of the outward movement, and that the rest position of the movable transverse rods (1) with respect to the frame (13) by resilient moments is maintained. This creates a vibratory system without the need for the movable crossbars own drive.
    公开号:AT511949A4
    申请号:T257/2012
    申请日:2012-02-29
    公开日:2013-04-15
    发明作者:
    申请人:Ife Aufbereitungstechnik Gmbh；
    IPC主号:
    专利说明:

    • · «4» · * «• *» · • · · ► · · P43979 - 1 -
    Span n wcl lensieb
    The invention relates to a tensioning wave according to the preamble of claim 1 and DE 34 11 719.
    This document discloses a tensioning wave with obliquely to the vertical extending screen surface, in which each second cross bar is placed in approximately linear back-forth movement to alternately tension and flatten its adjacent flexible or elastic screen elements so as to prevent clogging and to move the estate. This reciprocating motion, actually a movement along a section of a circular arc, is achieved by attaching the movable transverse rods to pendulums which are mounted above the screen lining and are provided below the screen lining with a mass, so that they will vibrate of the sieve box to commute and thus effect the intended movement of the cross bars.
    Because of the complex construction, the asymmetric position with respect to the oblique screen, the consequent limitation of the tilt and the susceptibility to dirt, this construction has not prevailed.
    A further development of the aforementioned publication is described in EP 197 191, in which the movable transverse rods are mounted to be movable normal to the plane, are held by springs at rest at a predetermined location and are offset by the movement of the screen box in approximately linear motion. By this measure, the tensioning and bulging of Siebbelags always takes place in both Siebfeldem symmetrical to the movable transverse bars, which is not favorable for the promotion of the screenings. The movement of the transverse rods normal to the screen level results in extremely low cleaning performance in the screen lining, presumably because no proper bulging takes place since the movement of the movable transverse rod does not permit this. This device has not been proven in practice and is not found there.
    From EP 1 228 814 an extremely complex screening machine is known in which the complexity was deliberately accepted in order to make them fully einhausbar. In this screening machine is the Siebbelag on longitudinal bars, along the
    -2-
    Fall line extend, arranged, which in turn are mounted tiltable on cross struts, being held by spring elements in a rest position. The drive takes place as an imbalance drive on the frame, the axis of rotation of the imbalance drive is parallel to the cross beams, yet it comes in the camps of the longitudinal beams by there provided eccentric masses that this longitudinal beams ausfiihren the intended tilting movement and so the stretching or bulk of Siebbelages effect from transverse wall to transverse wall. It is interesting that it is provided in principle to make each longitudinal member tiltable and that only in one embodiment, additional, unspecified, immobile subcarriers are provided.
    This device is extremely expensive and ultimately fragile, probably only because of the ability to einhausen such a sieve well, this effort in various screening operations is justifiable.
    The invention thus has the goal to provide a simple and robust Spannwellensiebmaschine, which should also be easily adaptable to different Siebsituationen at least in one embodiment.
    According to the invention, these objects are achieved by the features stated in the characterizing part of claim 1. In other words, it is the movable cross bars rotatably held in the frame and resiliently brought into a rest position, axis of rotation and focus do not coincide (more precisely, instantaneous axis of rotation Φ main axis of inertia), this can be achieved by matching geometry. This creates a vibratory system without the need for the movable cross bars of its own drive. In one embodiment, the transverse rods have at least one radial arm on which an eccentric mass is provided, preferably the arm is provided on one of the ends of the transverse rods lying outside the frame. Particularly preferred such eccentric masses are provided on both sides symmetrical to Siebmittelebene.
    Now, if in such a sieve the frame is set in vibration, be it in linear vibrations or in circular oscillations, each cross bar forms according to its storage and its eccentric mass with the frame a resilient two-mass system and by the thus induced tilting movement of the movable cross bars
    -3- the tension and Bauschbewegung takes place as in conventional two-frame systems. This tilting movement is reinforced by the correct choice of the spring properties, so that the natural frequency of the movable crossbar system is close to the drive frequency of the screening machine.
    The storage of the movable cross bars can be done either in conventional Wellenlagem (plain bearings or roller bearings) and the rest position is ensured feathers, for example by torsion, or it can storage in rubber suits odgl. carried out, which apply the restoring force and also give a compliance in the direction of sifting and normal, which reduces impact load of the frame and the crossbar.
    The invention will be explained in more detail below with reference to the drawing. 1 shows a perspective side view of a sieve designed according to the invention with partly broken away side walls and FIG. 2 shows the end of a transverse bar together with its bearing in a perspective view.
    Fig. 1 shows an inventively designed clamping wave in a horizontal arrangement. A Siebbelag 3 is at the upper ends of movable transverse rods 1 and fixed transverse rods 12, which are arranged alternately in a frame 13 on the side walls 8, attached. The frame 13 and thus the screen surface are suitably arranged obliquely during operation, the rods run 1.12 horizontally.
    Fig. 2 shows the end of an inventively designed transverse bar 1 a Spannwellsiebmaschine. At the upper edge of the transverse bar 1 a Siebbetag 2 is suitably fixed, this can be done by screwing, plugging into corresponding recesses of the transverse bar 1 or by other fastening means which are known in the art. In most cases, the screen covering 2 consists of individual elements which extend from transverse bar to transverse bar, as indicated by the continuous line 3 in the region of the transverse bar 1.
    The transverse bar 1 is rotatably mounted eccentrically by a pivot bearing 7 in the side cheek 8 of the screen frame, i. the center of gravity 6 (and thus each of the main axes of gravity of the transverse bar, but only that which is practically parallel to the axis of rotation 5 -4- runs) of the cross bar is at a distance from the axis of rotation 5. Furthermore, by attaching additional masses 11 of the distance the center of gravity 6 is changed by the axis of rotation 5 and thus the natural frequency of the transverse rod 1 are changed. The additional masses 11 can be mounted directly on the transverse bar 1 or by means of a lever 10 elsewhere in the system. Due to the better accessibility here, as is usually preferred, the attachment outside.
    As indicated in the figure, the eccentric mass 11 is not formed in one piece, but consists of a plurality of individual discs, which makes it possible to easily and quickly change the size of this mass and thus adapt to the particular circumstances. Also, it is not necessary that the eccentric mass having the illustrated cylindrical shape and it can be provided that the lever arm, the distance between the center of gravity of the eccentric mass 10 and the axis of rotation 5 is adjustable. A further embodiment of the eccentric displacement can also be done by tabs 4, by lever or other suitable way. Another embodiment is a central attachment of the transverse rod 1 to the axis of rotation 5, wherein by attaching additional masses 11 at a distance from the axis of rotation 5 of the center of gravity 6 is displaced from the axis of rotation.
    It is obvious that the transverse bar 1 when rotated about the axis 5, as indicated by the double arrow 9, in its upper region, in which it is connected to the Siebbelag 2, performs a substantially linear reciprocating movements, whereby the Siebbelag 2 to the right or to the left of the transverse bar 1 alternately bagged and stretched. Strictly speaking, the cross bar 1 performs a bow movement around a frame-fixed axis of rotation with correspondingly fixed support; when stored by means of rubber blocks or the like, only an approximately arcuate movement. For this reason, the "instantaneous rotational axis" was spoken above, in realitas all these instantaneous rotational axes are at most a few millimeters apart, corresponding to the maximum linear deflection of the rubber layer in a plane parallel to the side cheek 8,
    The side wall 8 of the screening device is suitably set in vibration, to a variety of devices are known in the art. It can this vibration «< In parallel or obliquely to the plane of the screen covering 2, if it is a linear vibration, it must be done but also a circular oscillation or elliptical vibration by eccentric or crankshafts, etc. can be initiated against the foundation. Completely independent of the type of vibration and the nature of the initiation of the vibration on the screening device and thus on the side wall 8, the total mass, the fixed (as far as this is technically possible even rigid) is connected to the side wall 8, about the bearing in the pivot bearing 7 with its rotation about the axis 5 and the eccentric mass 11, a 2-mass vibration system in which the cross bar system in its entirety, thus the cross bar 1, the tab 4, the pivot bearing 7, the radial arm 10 and the eccentric mass 11, as well if necessary, a corresponding arm including eccentric mass on the opposite side, be set in vibration. By this oscillation and the thus induced back-movement of the cross bar 1 about the axis 5, the desired alternating tensioning and bulging of the Siebbelags 2,
    As already mentioned, the storage of the transverse bar 1 in the side cheek 8 does not have to be done via a classic pivot bearing, but can also be realized for example by a storage in rubber blocks. The rubber blocks take over both the restoring force and the restoring moment in a rotational sense about the axis of rotation 5 as well as a certain flexibility in both the vertical and in the horizontal direction (equivalent to the compliance in the direction normal to the axis 5 and parallel to the screen plane 2 and both normal to the axis 5 and to the screen plane 2 and along the axis 5); whereby by appropriate choice of the geometry or the composition of the rubber bearing and anisotropic spring characteristics are possible.
    As materials for such cross bars including eccentric masses all materials known in the sieve construction in question, in the knowledge of the invention it is easy for the expert to select and dimension them accordingly. The other components correspond to the state of the art, including the foundation bearings and the drive and therefore require no further explanation here.
    Overall, the advantage over the prior art by the compact design and the complete abandonment of a second frame, with the
    Given that the screening device is extremely reduced in terms of mass and volume, it is also possible, with only one drive - possibly per side cheek - for the entire sieve to Auslangen too find and by the good accessibility of the eccentric masses, it is easily possible to achieve an adaptation to the respective Siebbedingungen.
    The invention is not limited to the illustrated and discussed Ausfireibungsbeispiel, but can be modified variously. Thus, it is not necessary that the radial arm 10 and the tabs 4 point in the same direction, this may be provided differently than shown in particular in very steeply placed screen coverings 2. The radial arms can also be arranged inside the screen frame and thus "behind" the side wall 8, in particular in this opposite arrangement, which in particular facilitates the possibility of an enclosure, although the change of dynamic eccentricity is made more difficult because below the screen lining and inside the screen Framework must be worked.
    Finally, if no importance is attached to a simple change of the dynamic eccentricity, these are also caused by appropriate design of the transverse bar 1, with emphasis outside the axis of rotation, it is essential that by a resilient force, the zero position of the transverse bar with properly positioned upper Area is ensured.
    权利要求:
    Claims (6)
    [1]
    1. A tensioning corrugated sieve with a sieve surface running obliquely to the vertical, with a frame (13) which can be set in motion by a drive, in which transverse bars (1, 12) carrying a sieve lining (3) are fastened each second transverse bar (1) is displaceably movably mounted in kreisbogenformige or approximately linear back-forth movement, characterized in that the main axis of inertia of the movable transverse rods (1) distance from the instantaneous axis of rotation of the forth-motion and that the Ruhedrehlage the movable transverse rods (1) with respect to the frame (13) is maintained by resilient moments.
    [2]
    2. Spannwellensieb according to claim 1, characterized in that the movable transverse rods (1) on at least one of its ends a radial arm (10) which carries an eccentric mass (11).
    [3]
    3. clamping wave sieve according to claim 2, characterized in that the eccentric mass consists of several, individually assembled sub-masses.
    [4]
    4. tensioning wave sieve according to one of claims 2 or 3, characterized in that the radial arm (10) outside the frame (13) is provided.
    [5]
    5. clamping wave sieve according to one of the preceding claims, characterized in that the movable transverse rods (1) are urged by a torsion spring in the storage area in its resting position.
    [6]
    6. tension wave sieve according to one of claims 1 to 4, characterized in that the movable transverse rods (1) are mounted in rubber suits, which preferably also provide the restoring moments for the resting position.
    类似技术:
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    同族专利:
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    HUE029301T2|2017-02-28|
    EP2633924A1|2013-09-04|
    ES2575674T3|2016-06-30|
    SI2633924T1|2016-08-31|
    EP2633924B1|2016-04-27|
    PL2633924T3|2016-10-31|
    BR102013004505A2|2016-02-23|
    AU2013200433A1|2013-09-12|
    AT511949B1|2013-04-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3411719A1|1983-04-11|1984-10-11|Binder & Co AG, Gleisdorf, Steiermark|Screen device|
    EP0185409A2|1984-11-19|1986-06-25|Flow Control Service B.V.|A shake-screen apparatus|
    EP0197191A2|1985-04-03|1986-10-15|Carl Schenck Ag|Screening machine with a flexible screen bottom|
    DE19601206A1|1996-01-15|1997-07-24|Herhof Umwelttechnik Gmbh|Inclined plane vibrating corrugated sieving process for grading compost grains|
    AT4530U1|2001-02-05|2001-08-27|Binder Co Ag|SCREENING MACHINE WITH MOVING SCREEN|
    WO2004069374A1|2003-02-08|2004-08-19|Axiom Process Limited|Screen system|
    DE2108924A1|1971-02-25|1972-09-07|Wehner, Albert, 7881 Wieladingen|Flexible sieve edge seal - of bellows type wall prevents edge spillage|
    DE4101710A1|1991-01-22|1992-07-23|Hein Lehmann Trenn Foerder|SCREEN AREA FOR A SCREENING MACHINE|
    DE10016979C1|2000-04-06|2001-08-30|Joest Gmbh & Co Kg|Sieve device, for sifting damp or sticking material, includes vibrating frame coupled to carrier frame using torsion-rod springs|CN106824761B|2017-01-22|2020-09-08|安徽农业大学|Oscillating stoner|
    CN107042199A|2017-05-12|2017-08-15|刘云龙|A kind of concrete raw material screening installation poured into a mould for Bridge guardrail|
    CN110026337B|2019-05-05|2020-09-04|温州瓯厦建设有限公司|Quick sieving mechanism of granular material of building energy saving material production|
    法律状态:
    2018-10-15| MM01| Lapse because of not paying annual fees|Effective date: 20180228 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA257/2012A|AT511949B1|2012-02-29|2012-02-29|Spannwellensieb|ATA257/2012A| AT511949B1|2012-02-29|2012-02-29|Spannwellensieb|
    ES12197440.6T| ES2575674T3|2012-02-29|2012-12-17|Flip-flow type screen|
    SI201230639A| SI2633924T1|2012-02-29|2012-12-17|Flip-flow screen|
    PL12197440.6T| PL2633924T3|2012-02-29|2012-12-17|Flip-flow screen|
    HUE12197440A| HUE029301T2|2012-02-29|2012-12-17|Flip-flow screen|
    EP12197440.6A| EP2633924B1|2012-02-29|2012-12-17|Flip-flow screen|
    AU2013200433A| AU2013200433A1|2012-02-29|2013-01-24|Flip-flow screen|
    BR102013004505A| BR102013004505A2|2012-02-29|2013-02-26|stretch and ripple screen|
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