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EP3228393A1 - Dispositif de tamisage - Google Patents

Dispositif de tamisage Download PDF

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Publication number
EP3228393A1
EP3228393A1 EP17000393.3A EP17000393A EP3228393A1 EP 3228393 A1 EP3228393 A1 EP 3228393A1 EP 17000393 A EP17000393 A EP 17000393A EP 3228393 A1 EP3228393 A1 EP 3228393A1
Authority
EP
European Patent Office
Prior art keywords
rotary tube
bearing
shaft
sieve
screening device
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
Application number
EP17000393.3A
Other languages
German (de)
English (en)
Other versions
EP3228393B1 (fr
Inventor
Heinz Backers
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.)
Backers Maschinenbau GmbH
Original Assignee
Backers Maschinenbau 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 Backers Maschinenbau GmbH filed Critical Backers Maschinenbau GmbH
Publication of EP3228393A1 publication Critical patent/EP3228393A1/fr
Application granted granted Critical
Publication of EP3228393B1 publication Critical patent/EP3228393B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B07B1/12—Apparatus having only parallel elements
    • B07B1/14—Roller screens

Definitions

  • the invention relates to a screening device, with at least one on one frame mounted on one side, rotating, elongated sieve member. Moreover, the invention relates to a screening machine with Sieborgan.
  • Star screens are used to screen construction debris, loamy soil and other bulk materials. These must be protected from large, heavy chunks. To this end, bar grates, gratings or vibrato grinders have been used as pre-separators. Because it also sieves cohesive material, a pre-separator of the known type can easily clog.
  • Object of the present invention is to provide a screening device with high load capacity of the one-sided mounted sieve organs.
  • the provided for solving the task screening device has the features of claim 1.
  • the Sieborgan on shaft, bearing tube and rotary tube wherein the bearing tube fixedly held on the frame, the shaft mounted in the bearing tube and the rotary tube is connected to the shaft.
  • the rotary tube is provided in relation to the shaft radially outside and has contact with the screenings. The forces are transmitted from the bearing tube to the frame.
  • the connection from the bearing tube to the frame is designed accordingly.
  • the rotary tube covers the bearing tube at least partially.
  • the rotary tube extends on the bearing tube as far as possible to the frame zoom. As a result, the bearing tube is protected by the rotary tube.
  • the rotary tube is designed in several parts, at least with an axially outer rotary tube part and an axially inner rotary tube part, wherein the shaft is preferably connected to the outer rotary tube part and the inner rotary tube part covers the bearing tube at least partially.
  • the bearing tube sits in an annular gap between the shaft and inner rotary tube.
  • the inner rotary tube part is formed with a slightly larger outer diameter than the outer rotary tube part. It is also possible a design with more than two rotary tube parts, such as with an additional middle rotary tube part.
  • the shaft protrudes into the outer rotary tube part with an end-side shaft section or with a shaft end.
  • the end shaft portion is connected by at least one pin or bolt to the outer rotary tube part.
  • the radially directed pin transmits the torque of the shaft to the rotary tube or to the outer rotary tube part.
  • at least two pins or bolts are provided, of which extends in particular one through a hole in the end shaft portion. Another pin or bolt may be held in an end groove of the shaft portion.
  • the outer rotary tube part is supported on the end shaft portion.
  • the rotary tube parts are screwed together via pipe flanges, in particular with a radially outwardly directed flange on the outer rotary tube part.
  • the inner rotary tube part is provided for this purpose corresponding to a radially inwardly directed flange.
  • the latter flange can extend up to the shaft and thus seals the annular gap between the inner rotary tube and the shaft.
  • the rotary tube has externally arranged, axially directed (and radially projecting) webs.
  • axially directed webs are provided on the outer rotary tube part and on the inner rotary tube part, with fewer webs being present on the inner rotary tube part than on the outer rotary tube part, in particular.
  • the number of webs has a ratio of 1 to 2. For example, 4 to 8 webs are arranged on the inner rotary tube part and 8 to 16 webs on the outer rotary tube part.
  • the shaft is mounted at least twice in the bearing tube, in particular at both ends of the bearing tube.
  • the shaft is supported within an area defined by the frame.
  • the bearing tube is held in a receiving plate of the frame, wherein the receiving plate is directed in particular obliquely, with a lower portion which is inclined to the rotary tube.
  • the lower portion of the receiving plate which is in particular part of the frame, thus has an acute angle to the rotary tube, while an upper portion forms an obtuse angle to the rotary tube.
  • the bearing tube with an upper bearing plate on the outside of the receiving plate and with a lower bearing plate inside of the receiving plate.
  • the lower bearing plate faces the rotary tube while the upper bearing plate faces a shaft end outside the region defined by the frame.
  • the two bearing plates are preferably provided with triangular support plates for supporting on the outer circumference of the bearing tube. Bearing plates, support plates and bearing tube are preferably fixedly connected to each other, in particular welded.
  • intermediate plates are provided between the receiving plate and the bearing plate, in particular of a softer material than the bearing plates and the receiving plate.
  • the intermediate plates are larger than the bearing plates. This results in a better distribution of force on the Receiving plate.
  • the softer material has a yielding damping effect on occurring load peaks.
  • the shaft protrudes with a shaft end out of the bearing tube, a drive sprocket being fastened on this shaft end.
  • the drive sprocket thus lies outside the frame or on the side facing away from the screen element of the receiving plate.
  • several sieve organs are arranged in a common sieve plane, wherein laterally additional sieve elements are preferably provided above the sieve plane. This results in a funnel-shaped arrangement of the sieve organs.
  • the sieve members are provided parallel to each other or in a splayed arrangement, with a larger gap to a discharge side.
  • the dispensing side opposite, ie in the region of the receiving plate, the sieve organs then have smaller distances to each other.
  • the frame is provided with a chute or a chute plate which covers a part of the rotary tube.
  • the chute plate protects bearing and shaft.
  • the screen member is cylindrical or conical. Also, an outer peripheral surface may be formed crowned.
  • the sieve member is equipped with rings, spirals, scratches or drivers.
  • the strainer can also be outwardly smooth.
  • the rings, spirals, scratches or drivers adjacent sieve organs are arranged in a gap to each other. This results in a more uniform surface for the screenings.
  • the frame is adjustable in its position, such that the sieve element or a sieve plane is adjustable in the inclination relative to the horizontal.
  • the screen level can be adjusted inclined to the discharge side, so that slipping too coarse screenings from the screen level.
  • a plurality of screening elements are provided, which can be driven in the same direction. Also possible are several Sieborgane with different directions of rotation.
  • the sieve member is hydraulically driven, wherein preferably the hydraulic pressure is monitored, so that when a limit value is exceeded, the sieve member is stopped or driven in the opposite direction.
  • the screen element is driven in opposite directions only for a defined period of time and then rotates again in the original direction of rotation.
  • the subject matter of the invention is also a screening machine with at least one sieve and one feed bunker and with a sieve device according to the invention, as explained above, the sieve device being provided in particular as a coarse sieve above the feed bin.
  • the screening machine on a chassis and a screen with rotating Sieborganen and with a conveyor belt for screened screenings (fine grain).
  • FIG. 1 shown is a screening machine 20 for the screening of debris, soil, soils and / or crops.
  • Components of the screening machine 20 are here a star screen 21 (or disc screen), a conveyor belt 22 for coarse grain, a conveyor belt 23 for fine grain, a crawler chassis 24, a drive 25, a support frame 26 and a feed bunker 27.
  • a screening device 28th arranged as a coarse sieve. The screening device 28 is to remove larger, solid chunks from the bulk material supplied before the bulk material passes into the feed bin 27.
  • the screening device 28 is provided with a plurality of elongated, obliquely downward sieve members and also open at an obliquely downward end face 29, so that larger, solid chunks, which can not pass through the sieve organs, fall obliquely downward over the end face 29 of the screening device 28 can. Only smaller chunks pass through the distances between the sieve organs and into the feed bunker 27.
  • FIG. 2 shows the screening device 28 with a view into the provided as a discharge side end face 29 inside. Visible are four arranged in a common plane of the sieve rotary straws 30, 31, 32, 33 as Sieborgane. These are substantially cylindrical, aligned parallel to each other and have the same distances to each other, namely sieve gaps 34. Similarly wide sieve gaps 35, 36 are provided between the outer rotary tubes 30, 33 and stationary sieve bars 37, 38 adjacent thereto. The latter act as lateral boundaries.
  • the rotary tubes 30 to 33 and sieve bars 37, 38 are held on a frame 39.
  • Components thereof include obliquely directed side walls 40, 41, a rear, obliquely directed receiving plate 42, a chute 43, a rear (drive side) cross member 44, lateral cross braces 45, 46, a (discharge side) cross member 47 at the open end side 29 and lateral support posts 48, 49, also in the region of the open end face 29.
  • the transverse struts 44 to 47 form a lying in a common task plane rectangle above the screen plane formed by the rotary tubes 30 to 33.
  • the rotary tubes 30 to 33 are mounted on one side, namely in the receiving plate 42.
  • a fixed bearing tube 50 is provided with an upper bearing plate 51 and a lower bearing plate 52, which are obliquely directed and offset relative to each other, see in particular FIGS. 7 and 9 ,
  • the bearing tube 50 is inserted through an associated opening 53 in the receiving plate 42, so that the upper bearing plate 51 on the outside (outside the frame) rests against the receiving plate 42, while the lower bearing plate 52 comes to lie on the inside of the receiving plate 42.
  • the bearing plates 51, 52 are not directly on the receiving plate 42 at. Rather, in each case an intermediate plate 54, 55 is provided, see FIG. 4 ,
  • the intermediate plates 54, 55 have essentially two functions.
  • bearing plates 51, 52 are made of a somewhat softer material than the bearing plates 51, 52, are elastic and can thereby temporarily dampen the force peaks acting on the respective bearing tube 50.
  • the intermediate plates 54, 55 are formed somewhat larger than the bearing plates 51, 52, so that the opening 53 is further covered.
  • the bearing plates 51, 52 are each provided with a triangular support plate 56, 57.
  • the bearing tube 50 projects with most of its length in a formed between the receiving plate 42 and the end face screen space 58 into it, while a shorter part of its length projects beyond the receiving plate 42 outwardly.
  • Each rotary tube 30 to 33 is mounted on or in the associated bearing tube 50.
  • a shaft 59 is preferably mounted in two tapered roller bearings 60, 61.
  • the shaft 59 is provided with a drive sprocket 62, which is shown here as a double sprocket.
  • the shaft 59 comes out of the bearing tube 50 with an end shaft portion or a shaft end 63 and is there connected to the respective rotary tube 30 to 33.
  • Each rotary tube 30 to 33 is here formed in several parts in the axial direction, namely with an axially outer rotary tube part 64 and an inner rotary tube part 65.
  • the outer rotary tube part 64 is connected by means of two radially directed pins 66, 67 with the shaft end 63.
  • the pin 66 is firmly inserted into the shaft end 63 and comes to lie in a groove 68 of the outer rotary tubular member 64.
  • the pin 67 is firmly inserted into the outer rotary tube part 64 and comes to lie in an end-side groove 69 of the shaft end 63.
  • the pin 67 is inserted into a bore 70 of the outer rotary tube part 64.
  • the inner rotary tube part 65 is screwed in the axial direction with the outer rotary tube part via pipe flanges.
  • the outer rotary tube part has a radially outwardly directed flange 71 with bores 72.
  • the inner rotary tubular member 65 is provided with a radially inwardly directed flange 73, also with holes 74.
  • the holes 74 are here provided with internal threads and aligned with the holes 72, so that the rotary tubular members 64, 65 are connected to each other by screws.
  • the inner rotary tube part 65 comprises only a portion of the bearing tube 50 and extends almost to the lower bearing plate 52 zoom. In order to prevent the ingress of dirt into the intermediate space between the inner rotary tube part 65 and the bearing tube 50, the chute 43 extends beyond the inner rotary tube part 65. Also, an additional bearing ring or Simmerring be provided.
  • the outer rotary tube part 64 has on its outer side axially extending and radially directed webs 75, preferably about 12 pieces and at equal distances from each other. Deviating from the inner rotary tubular member 65 is preferably provided with a little fewer webs 76, preferably with about 6 pieces and at equal distances from each other, see in particular FIG. 2 , In this case, the inner rotary tube part has a slightly larger outer diameter than the inner rotary tube part 65, so that the webs 76 are arranged radially further outward than the webs 75.
  • the rotary tube parts 64, 65 may be provided with rings 77 or spirals 78, see FIG. 11 .
  • the outer rotary tube part 64 is provided in addition to the webs 65 with rings 67, while the inner rotary tube part 65 has no webs and is instead provided with a spiral 68.
  • a modified embodiment of the screening device 28 show the Figures 5 and 6 ,
  • two further rotary tubes 79, 80 are provided, namely above the sieve plane formed by the rotary tubes 30 to 33 and obliquely above the respective outer rotary tubes 30, 33.
  • the rotary tubes 79, 80 form with the rotary tubes 30, 33 a funnel-shaped formation.
  • the rotary tubes 30 to 33 are driven in the same direction.
  • the drive is hydraulic here. By measuring the hydraulic pressure, the drive can be monitored. If a limit is exceeded, the direction of rotation is reversed.
  • the directions of rotation of the rotary tubes 79, 80 are adapted to the directions of rotation of the rotary tubes 30 to 33 or deviating provided. This also applies to drive control and possible overload protection.
  • the screening device 28 is according to FIG. 1 formed pivotable, so that the downward inclination of the rotary tubes 30 to 33 is variable.
  • the support posts 48, 49 are pivotally mounted on the support frame 26, while the rear cross member 44 is laterally raised or lowered via hydraulic cylinders 81.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
EP17000393.3A 2016-04-04 2017-03-10 Dispositif de tamisage Active EP3228393B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016003832.2A DE102016003832A1 (de) 2016-04-04 2016-04-04 Siebvorrichtung

Publications (2)

Publication Number Publication Date
EP3228393A1 true EP3228393A1 (fr) 2017-10-11
EP3228393B1 EP3228393B1 (fr) 2019-01-30

Family

ID=58314063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17000393.3A Active EP3228393B1 (fr) 2016-04-04 2017-03-10 Dispositif de tamisage

Country Status (2)

Country Link
EP (1) EP3228393B1 (fr)
DE (1) DE102016003832A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019121049A3 (fr) * 2017-12-20 2019-08-15 Doppstadt Familienholding Gmbh Dispositif de séparation de produit de chargement
CN113262975A (zh) * 2021-05-31 2021-08-17 重庆工程职业技术学院 一种建筑施工用筛分装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022004864B3 (de) 2022-12-22 2023-09-07 Usg Umweltservice Gmbh & Co. Kg Vorrichtung zum Trennen von Aufgabegut

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4430210A (en) * 1979-07-13 1984-02-07 Rauma-Repola Oy Screen
US5287977A (en) * 1992-12-18 1994-02-22 Tirschler Ehrenfried A Roller system for use in a roller screen
EP1570919A1 (fr) 2004-03-02 2005-09-07 Anlagenbau Günther GmbH Appareil pour la séparation de matériaux substantiellement solides

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012110361B4 (de) * 2012-10-30 2015-03-26 Günther Holding GmbH & Co. KG Vorrichtung zum Sortieren

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4430210A (en) * 1979-07-13 1984-02-07 Rauma-Repola Oy Screen
US5287977A (en) * 1992-12-18 1994-02-22 Tirschler Ehrenfried A Roller system for use in a roller screen
EP1570919A1 (fr) 2004-03-02 2005-09-07 Anlagenbau Günther GmbH Appareil pour la séparation de matériaux substantiellement solides

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019121049A3 (fr) * 2017-12-20 2019-08-15 Doppstadt Familienholding Gmbh Dispositif de séparation de produit de chargement
CN111479637A (zh) * 2017-12-20 2020-07-31 Lig有限责任公司 用于分离进给料的设备
CN113262975A (zh) * 2021-05-31 2021-08-17 重庆工程职业技术学院 一种建筑施工用筛分装置

Also Published As

Publication number Publication date
DE102016003832A1 (de) 2017-10-05
EP3228393B1 (fr) 2019-01-30

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