EP0363725B1 - Siebboden - Google Patents

Siebboden Download PDF

Info

Publication number
EP0363725B1
EP0363725B1 EP89117798A EP89117798A EP0363725B1 EP 0363725 B1 EP0363725 B1 EP 0363725B1 EP 89117798 A EP89117798 A EP 89117798A EP 89117798 A EP89117798 A EP 89117798A EP 0363725 B1 EP0363725 B1 EP 0363725B1
Authority
EP
European Patent Office
Prior art keywords
screen
strips
adjacent
sections
bottom according
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
EP89117798A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0363725A3 (de
EP0363725A2 (de
Inventor
Anton Dipl.Wirt.-Ing. Bokor
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ludwig Krieger Draht und Kunststofferzeugnisse GmbH
Original Assignee
Ludwig Krieger Draht und Kunststofferzeugnisse GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ludwig Krieger Draht und Kunststofferzeugnisse GmbH filed Critical Ludwig Krieger Draht und Kunststofferzeugnisse GmbH
Priority to AT89117798T priority Critical patent/ATE99195T1/de
Publication of EP0363725A2 publication Critical patent/EP0363725A2/de
Publication of EP0363725A3 publication Critical patent/EP0363725A3/de
Application granted granted Critical
Publication of EP0363725B1 publication Critical patent/EP0363725B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4645—Screening surfaces built up of modular elements

Definitions

  • the invention relates to a sieve tray with the features of the preamble of claim 1.
  • Sieve trays of the abovementioned structure are used, for example, in the preparation of mineral building materials, in particular for classifying mineral bulk goods. They consist of a substructure in the form of a support frame, which is set in motion by an unbalance drive, and of several sieve fields, which are interchangeably attached to the substructure and can be replaced individually when worn.
  • the support profiles have through holes, slots or cavities open at the top, e.g. in the manner of a U-profile with legs drawn in.
  • Adjacent screen coverings have complementary pins or strips on their end faces, each of which is driven into a through hole or cavity from above and locked in place by suitable undercuts.
  • the end faces of the screen coverings and the pins or strips lie in one plane (DE-C-36 06 854).
  • DE-A-27 06 277) it is also known (DE-A-27 06 277) to connect the screen coverings to one another by toothing-like design of their end faces and to snap them onto a solid support profile by means of complementary recesses on the underside.
  • bolts, terminal strips or the like are additionally between adjacent screen coverings. driven, which brace the strips or pegs on the screen coverings within the slots, through holes or cavities on the support profiles.
  • either special support profiles are required or additional fastening means (bolts, terminal strips) are necessary.
  • the installation and removal of the sieve coverings is also possible only with difficulty and considerable expenditure of force and, in particular, it cannot be avoided that the adjacent sieve coverings are also loosened when a sieve cover is lifted out.
  • a structurally simple sieve tray is known from GB-A-2 003 748, which forms the preamble of claim 1.
  • the support profiles consist of simple Bars with a rectangular profile.
  • the rubber-elastic screen coverings have strips on two opposite end faces, which have a groove-like recess that is open to the outside. The screen covering is driven from above between adjacent beams until they snap into the grooves on the screen covering. The depth of the grooves is such that the top of the beams are completely covered by the screen coverings.
  • the beam-shaped support profiles have an unfavorable moment of inertia due to their rectangular profile.
  • the invention has for its object to provide a sieve bottom that manages with the simplest standard profiles and allows easy installation and removal of the sieve coverings.
  • the supporting profiles are in the form of I-profiles are formed, and that the strips of the screen coverings overlap with the upper chord of adjacent I profiles from the free edge, the width of each screen cover measured at the base of the groove being at least in places somewhat larger than the clear width between the upper chords of adjacent I profiles, and that the supports are constructed as spaced-apart, angled supports formed on the underside of the screen covering.
  • the invention initially has the advantage that inexpensive series profiles in the form of rigid I-profiles can be used, which are attached to the substructure.
  • the upper straps of the I-profiles serve to anchor the screen coverings by inserting a screen cover with its front strips between the I-profiles and springing the strips inwards due to their rubber elasticity and engaging with their groove over the I-beams so that the screen covering is fixed in the horizontal and vertical direction. Due to the width of the sieve coverings in the groove base, which is at least in places, the sieve coverings are clamped between the I-profiles and, depending on the size of the oversize, are also pretensioned and therefore cannot move despite the dynamic load.
  • the construction of individual screen coverings - just like the installation - is easily possible by prying out or driving in, whereby it is ensured that only the desired screen cover is loosened or - during installation - each screen cover can always be attached separately.
  • the molded-on angle brackets ensure that the resilience of the strips is reduced or eliminated at some points on the screen covering, so that the strip is securely locked onto the beam of the I-profiles over the entire length. These angle brackets also provide one selective support or preload.
  • the strips are offset inwards and downwards with respect to the end faces of the screen covering, and that the adjacent screen coverings resting on the upper side of the top chords of the I-profiles touch the end faces with one another and connect them flush with one another.
  • the advantage is achieved that the entire fastening means lie below the actual screen area and thus little screen area is lost for this. It is also advantageous that, on the one hand, the supporting profiles are completely covered with respect to the screenings and are therefore not exposed to wear, on the other hand, there is a continuous screen surface, so that the screenings without obstacles (gaps or the like) in the area of the joints of the screen coverings from opening to Output end can migrate and no screenings can penetrate between the screenings.
  • the width of the screen coverings measured at the base of the groove is somewhat larger over the entire length than the clear width between the top chords of adjacent I-profiles, so that a firm clamping or pretensioning is provided over the entire width. This can if necessary are further supported by the fact that the facing end faces of the screen coverings abutly adjoin one another above the top chords of the I-profiles, if necessary also with slight pretensioning of the individual screen coverings.
  • the stiffening of the screen coverings in their plane serves the measure that the screen cover has stiffening ribs running through perpendicular to the strips and that the angle brackets are arranged in the area of the same.
  • the individual screen covering is additionally stiffened and bulging or arching under load is avoided. This can be supported by the fact that the screen covering is provided with a reinforcement running from end to end, if necessary the sieve covering can also be provided with a reinforcement made of steel arranged in the stiffening ribs.
  • the measure is that the strips have on their outside facing the I-profiles chamfers.
  • a preferred embodiment of the invention is characterized in that one bar of each screen covering has a deeper groove than the other bar and can be pushed laterally onto the upper flange of the I-profile by means of this groove, while the other bar from above onto the I-profile can be snapped on. It can be provided that the groove on the one bar of the screen covering has a depth corresponding to the width of the upper chord of the I-profile over which it extends.
  • the screen covering with the deeper groove is pushed onto the one supporting profile and only snapped onto the other support profile with the opposite bar or its groove. Installation can be simplified considerably because the screen covering is fixed on one side and only has to be driven in on the other side. Conversely, there is the advantage during removal that the screen covering only has to be lifted on one side, while it remains fixed on the other side and is then pulled off to the side. This is particularly advantageous if internals, such as spray devices or the like, above the screen surface. available.
  • the strips are pulled down laterally covering the support profile and close to the support frame.
  • the sieve bottom consists of a support frame 1, not shown, which forms the substructure, and spaced-apart I-profiles 2, which are fastened to the support frame 1 with their lower flange 3.
  • the upper chord 4 of the I-profile serves to receive the sieve coverings 5 made of rubber-elastic material, which are arranged in series to form the sieve bottom and optionally also next to one another.
  • Form the screen pads 5 between adjacent I-profiles 2 each have a screen field and each have screen openings 6 of the same cross-section.
  • Each screen covering 5 has, parallel to its opposite end faces 7, ledges 8 which project downwards and which have a nose-like cross section and have a groove 9 on their outside.
  • the strips 8 are arranged at a distance from the end face 7 of the screen covering, so that successively arranged screen coverings can abut one another with their end faces 7 and are flush with the top side.
  • the screen coverings 5 are attached to the I-profiles by pressure from above, by resiliently dodging the strips when inserting the individual screen coverings between adjacent I-profiles, and finally with the groove 9 over the outer edge of the upper flange of the I-profile click into place.
  • the insertion bevels 10 provided on the outside of the strips 8 serve to facilitate insertion.
  • the screen coverings are slightly prestressed by appropriate dimensioning of their width at the bottom of the groove with reference to the clear width between the I-profiles.
  • the strips 8 are supported at some spaced apart locations via molded-on angle brackets 11 on the underside of the screen covering, in order to prevent the strips from springing out too much and to maintain the pretension at certain points, particularly when the strips are long.
  • This purpose, as well as the additional stiffening of the individual screen covering, is further served by some stiffening ribs 12 formed on the underside, which extend from bar to bar and preferably merge into the angle supports 11.
  • the screen coverings can be provided with a steel reinforcement 15, which may also be used for prestressing (Bulging) the screen coverings 5 can serve.
  • the strip 8 can, as indicated in the drawing by the dash-dotted line on the left, have an extension 13 which extends to the support frame 1 and covers the entire support profile 2 against the screen material 6 passing through the screen openings 6 - the screen passage - and thus protects against wear.
  • the attachment of the support profile 2, which is carried out by means of screws passing through the holes 14 on the lower flange, is also protected by this measure.
  • one of the two grooves namely the groove 9 ′
  • the groove 9 ′ has a substantially greater depth, so that the strip 8 ′ has one side 4 ′ of the upper flange 4 of the I-section 2 completely overlaps.
  • the screen covering 5 with the groove 9 'on the bar 8' is first pushed onto the part 4 'of the upper belt 4 and then snapped on the opposite side by springing back of the bar 8. Conversely, when the screen covering 5 is removed in the area of the strip 8, it is lifted and then removed from the opposite I-profile.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Electromechanical Clocks (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Dry Shavers And Clippers (AREA)
EP89117798A 1988-10-08 1989-09-27 Siebboden Expired - Lifetime EP0363725B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89117798T ATE99195T1 (de) 1988-10-08 1989-09-27 Siebboden.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8812647U 1988-10-08
DE8812647U DE8812647U1 (ko) 1988-10-08 1988-10-08

Publications (3)

Publication Number Publication Date
EP0363725A2 EP0363725A2 (de) 1990-04-18
EP0363725A3 EP0363725A3 (de) 1991-07-24
EP0363725B1 true EP0363725B1 (de) 1993-12-29

Family

ID=6828664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89117798A Expired - Lifetime EP0363725B1 (de) 1988-10-08 1989-09-27 Siebboden

Country Status (5)

Country Link
US (1) US5056286A (ko)
EP (1) EP0363725B1 (ko)
AT (1) ATE99195T1 (ko)
AU (1) AU623988B2 (ko)
DE (2) DE8812647U1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106925517A (zh) * 2015-12-30 2017-07-07 奥瑞（天津）工业技术有限公司 新型振动筛横梁

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5248043A (en) * 1992-02-28 1993-09-28 Dorn Lloyd A Modular retro-fit screen system for a screening deck
US6629610B1 (en) 1993-04-30 2003-10-07 Tuboscope I/P, Inc. Screen with ramps for vibratory separator system
USD425531S (en) * 1999-03-29 2000-05-23 Tuboscope I/P, Inc. Screen
US6269953B1 (en) 1993-04-30 2001-08-07 Tuboscope I/P, Inc. Vibratory separator screen assemblies
US5971159A (en) 1993-04-30 1999-10-26 Tuboscope I/P, Inc. Screen assembly for a vibratory separator
US6607080B2 (en) 1993-04-30 2003-08-19 Varco I/P, Inc. Screen assembly for vibratory separators
US6371302B1 (en) 1993-04-30 2002-04-16 Tuboscope I/P, Inc. Vibratory separator screens
US6443310B1 (en) 1993-04-30 2002-09-03 Varco I/P, Inc. Seal screen structure
US6267247B1 (en) 1993-04-30 2001-07-31 Tuboscope I/P, Inc. Vibratory separator screen
US6401934B1 (en) 1993-04-30 2002-06-11 Tuboscope I/P, Inc. Ramped screen & vibratory separator system
US6283302B1 (en) 1993-08-12 2001-09-04 Tuboscope I/P, Inc. Unibody screen structure
US6152307A (en) 1993-04-30 2000-11-28 Tuboscope I/P, Inc. Vibratory separator screens
US6290068B1 (en) 1993-04-30 2001-09-18 Tuboscope I/P, Inc. Shaker screens and methods of use
US6722504B2 (en) 1993-04-30 2004-04-20 Varco I/P, Inc. Vibratory separators and screens
US6454099B1 (en) 1993-04-30 2002-09-24 Varco I/P, Inc Vibrator separator screens
DE19962547A1 (de) * 1999-12-23 2001-09-13 Pag Parkhaus Ag Remontierbares Parkhaus
US6711864B2 (en) 2001-03-05 2004-03-30 Erwin Industries, Inc. Wood deck plank with protective cladding
US7908812B2 (en) 2002-01-03 2011-03-22 Eberle Harry W Iii Decking system and anchoring device
US7578105B2 (en) * 2003-03-20 2009-08-25 Blue Heron Enterprises, Llc Expansion-compensating deck fastener
DE102005007954A1 (de) * 2005-02-22 2006-08-24 Ludwig Krieger Draht- Und Kunststofferzeugnisse Gmbh Siebbelagsträger
US9003624B2 (en) 2009-11-25 2015-04-14 Simpson Strong-Tie Company, Inc. Method for making a gangable composite clip for attaching decking
US9637934B2 (en) 2009-11-25 2017-05-02 Simpson Strong-Tie Company Inc. Gangable composite deck clip
CN106925516A (zh) * 2015-12-30 2017-07-07 奥瑞（天津）工业技术有限公司 新型振动筛激振梁
USD795049S1 (en) 2016-06-20 2017-08-22 Simpson Strong-Tie Company Inc. Deck board fastener
USD792757S1 (en) 2016-06-20 2017-07-25 Simpson Strong-Tie Company Inc. Deck board fastener
USD796305S1 (en) 2016-06-20 2017-09-05 Simpson Strong-Tie Company Inc. Deck board fastener
US10113306B2 (en) 2016-06-20 2018-10-30 Simpson Strong-Tie Company Inc. Deck board fasteners
USD796306S1 (en) 2016-06-20 2017-09-05 Simpson Strong-Tie Company Inc. Deck board fastener

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3367078A (en) * 1964-06-09 1968-02-06 Jerrell B. Thompson Jr. Fastening device for expanded-metal sheets
CH567430A5 (ko) * 1973-12-07 1975-10-15 Roll Rink Sa
US4050204A (en) * 1976-04-30 1977-09-27 Cyclops Corporation Controlled destructive panel assembly
AT354957B (de) * 1977-02-15 1980-02-11 Hein Lehmann Ag Siebboden
DE2706277C3 (de) * 1977-02-15 1979-12-13 Hein, Lehmann Ag, 4000 Duesseldorf Siebboden
CA1102282A (en) * 1977-08-10 1981-06-02 Hunter Wire Products Limited Snap-fitting screening module for longitudinal supports
DE2808940C2 (de) * 1978-03-02 1985-05-02 Hein, Lehmann AG, 4000 Düsseldorf Siebboden
DE2832747B1 (de) * 1978-07-26 1979-11-22 Steinhaus Gmbh Siebdeck
DE2912228A1 (de) * 1979-03-28 1980-10-09 Ludwig Krieger Draht Und Kunst Siebboden
DE3606854A1 (de) * 1986-03-03 1987-09-10 Hein Lehmann Ag Siebbelag mit zwei uebereinander angeordneten siebboeden
US4730424A (en) * 1986-11-14 1988-03-15 Green William J Rooftop walkway
AU4713789A (en) * 1988-12-29 1990-07-05 Lettela Proprietary Limited Screen panel fixing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106925517A (zh) * 2015-12-30 2017-07-07 奥瑞（天津）工业技术有限公司 新型振动筛横梁

Also Published As

Publication number Publication date
AU623988B2 (en) 1992-05-28
EP0363725A3 (de) 1991-07-24
DE58906559D1 (de) 1994-02-10
EP0363725A2 (de) 1990-04-18
ATE99195T1 (de) 1994-01-15
DE8812647U1 (ko) 1988-12-01
US5056286A (en) 1991-10-15
AU5292890A (en) 1991-10-10

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