EP0687503A1 - Roll Shredder - Google Patents

Roll Shredder Download PDF

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Publication number
EP0687503A1
EP0687503A1 EP95107278A EP95107278A EP0687503A1 EP 0687503 A1 EP0687503 A1 EP 0687503A1 EP 95107278 A EP95107278 A EP 95107278A EP 95107278 A EP95107278 A EP 95107278A EP 0687503 A1 EP0687503 A1 EP 0687503A1
Authority
EP
European Patent Office
Prior art keywords
roller
housing
pivot axis
counter
comb teeth
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
EP95107278A
Other languages
German (de)
French (fr)
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EP0687503B1 (en
Inventor
Werner Doppstadt
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.)
Doppstadt Calbe GmbH
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Werner Doppstadt
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Filing date
Publication date
Application filed by Werner Doppstadt filed Critical Werner Doppstadt
Publication of EP0687503A1 publication Critical patent/EP0687503A1/en
Application granted granted Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/145—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with knives spaced axially and circumferentially on the periphery of a cylindrical rotor unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/10—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
    • B02C4/26—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a grid or grating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B02C2018/188—Stationary counter-knives; Mountings thereof

Definitions

  • the invention relates to a roller crusher, comprising a roller with shredding members, a counter tool directed towards the roller, which can be pivoted about a pivot axis parallel to the axis of the roller and is provided with counter members which are arranged at a gap to the shredding members, and drive means for rotating the drive Roller.
  • a known device of this type for processing waste products contains a toothed crushing drum below a filling shaft in a housing.
  • the teeth protrude just beyond the circumference of the shredding drum and work together with a counter tool.
  • the counter tool is pivotally mounted within the housing about an axis which runs parallel to the axis of the comminution drum and contains arc-shaped counter teeth between which the teeth of the comminution drum pass as it rotates. In the presence of parts that cannot be shredded, the counter tool is swung out.
  • the material to be shredded is fed through the inclined feed chute, which contains a special feed device directly above the shredding drum.
  • a collecting vessel for holding shredded material is located underneath the shredding drum.
  • a known hammer mill (DE-AS 20 34 074) contains a rotor to which axial rows of hammers are attached at a circumferential distance from one another. On one side of the rotor, carrier segments are arranged essentially parallel to the circumference of the rotor and carry grinding elements which are in gap with the hammers. The carrier segments are on a housing Supported by double link and rubber springs, which are loaded with an adjustable preload.
  • the object of the invention is to provide a highly effective roller crusher of the type mentioned at the outset, which is as robust and simple as possible.
  • the counter tool is comb-shaped, such that the counter members are non-rotatably arranged comb teeth on the pivot axis, which are arch-shaped and protrude from the pivot axis against the roller to form a narrowing roller gap, and Actuators engaging near the ends of the pivot axis are provided, by means of which the pivot axis abuts against a stop and the comb teeth are prestressed in a predetermined working position with respect to the roller.
  • the design of the roller crusher according to the invention contains a highly effective, robust and simple structure in that the counter tool is comb-like and the pivot axis with the comb teeth is held in its working position by servomotors.
  • the comb teeth therein are non-rotatably connected to the pivot axis, which is held by the servomotors with an adjustable counterforce when the roller with its comminution members drives the material to be comminuted into the nip and acts on it in a breaking and cutting manner by driving the material between the comb teeth . It is thus avoided that the comb teeth dodge even at relatively low crushing forces and that uncrushed material passes past the comb teeth through the crushing device.
  • the arcuate shape of the comb teeth helps that between the Comb teeth and the roller a narrow nip is formed and an intensive, maximum size reduction effect is exerted on the material to be shredded.
  • the comb teeth contain a tooth insert made of highly wear-resistant material in a recess on the side facing the comminution members, and the comminution members also contain a wear-resistant plate on their face, which can be clad with highly wear-resistant material on the side facing the counter-tool.
  • the tooth insert on the comb teeth and the wear-resistant plate on the comminution members are preferably interchangeably attached.
  • the servomotors are connected to a pressure control which ensures that the comb teeth can deflect when the comminution requires too much force. In this way, damage to the comb teeth and / or the comminution members can be reliably excluded.
  • the exemplary embodiment of a roller shredder shown schematically in FIG. 1 contains a generally square housing 1, which is divided by a vertical partition 2 into a first housing part and a second housing part.
  • the first housing part accommodates a comminution device 3 and contains a feed hopper 4 at the top, through which material to be comminuted which has been input to the comminution device 3, for example by means of a wheel loader, is fed.
  • the hopper 4 preferably contains two opposite sides, one of which runs perpendicular to the shredding device 3, thereby preventing the further feed from being blocked by the material entered.
  • the second housing part accommodates drive means 5 which have a main drive motor 6, in the exemplary embodiment shown a diesel motor, contain, which is connected in the usual way via a turbo coupling and a V-belt drive 7 with a gear 8, which is in drive connection with the shredding device 3 via a known and therefore not shown angular gear.
  • the drive means 5 also contain conventional and therefore not shown in detail supply devices for pressure medium for actuating pressure medium-operated components of the roller crusher.
  • the housing 1 is normally placed on a work surface on which the material to be shredded is fed into the hopper 4.
  • a pressure stamp 9 is pivotally arranged, one of which is shown schematically in FIGS. 2 and 3.
  • the pressure ram 9 is in a rest position shown in FIG. 2, in which it either lies against a housing wall or extends in the extension of a housing wall.
  • the plunger 9 consists essentially of a cylinder 41, which is connected to a pressure medium source via a connection 42, and a piston 43 with an adjusting foot 44.
  • the cylinder 41 is connected to the housing 1 via brackets 45 and hinges 46 .
  • the pressure rams 9 are pivoted from their rest position into a working position with the aid of the hinges 46, in which the adjusting foot 44 stands on the work surface.
  • the pressure ram 9 is extended and the housing 1 is raised so far that a semi-trailer can be moved underneath it. Then the raised housing 1 is lowered by relieving the pressure of the pressure stamp 9 on the wing of the semi-trailer.
  • a removal device 13 with ropes 15 and links 16 is held on two outside supports 12, only one of which can be seen in FIG. 1, of which only one or one can be seen in each case .
  • the links 16 are connected to a pressure medium-actuated servomotor (not shown).
  • the removal device 13 is designed essentially analogously to the rear conveyor belt of a comminution machine described in utility model G 93 05 834.9 by the same applicant.
  • the conveying device 13 connects to the conveying device 11 in the housing 1 and conveys the comminuted material, for example, to a transport trolley, to a further processing device, a deposit or the like.
  • the discharge device 13 is folded up and folded up and is held on the associated housing wall.
  • the partially sectioned top view of FIG. 2 shows on the right the second housing part with the drive means 5, ie the main drive motor 6 with turbo coupling, the V-belt drive 7 and the transmission 8.
  • the comminution device 3 consists of two components which interact with one another.
  • a first component is formed by a roller 16, which is preferably designed as a hollow roller.
  • One end of the roller 16 is rotatably mounted in the intermediate wall 2 and is in drive connection with the gear 8; its other end is rotatably mounted in an opposite wall of the housing 1.
  • the roller 16 carries on its jacket crushing members 17, which are described in detail below.
  • the crushing members 17 are in arranged axially and circumferentially offset from one another on the jacket of the roller 16.
  • a second component forms a counter-tool, which is designed like a comb and contains a pivot axis 18 and curved comb teeth 19 starting from the pivot axis 18.
  • the pivot axis 18 runs parallel to the axis of the roller 16 and, like this, is rotatably supported with its ends in the intermediate wall 2 and the opposite housing wall.
  • the comb teeth 19 are interchangeably attached by being pushed onto the pivot axis 18 by means of a hole (see below) with spacer rings 20 interposed; they are braced against one another over the working length of the pivot axis 18 by conventional and therefore only schematically indicated clamping means.
  • the spacer rings 20 are chosen so that their axial dimension corresponds to the axial thickness of the comminution members 17 on the roller 16, and the axial distance between adjacent comminution members 17 on the roller 16 is selected so that it corresponds to the axial dimension of the associated comb teeth 19. It can be seen that in this way the crushing members 17 and the comb teeth 19 are arranged in a gap with one another and come into mutual engagement when the roller 16 rotates.
  • the arrangement is preferably such that only one comminution member 17 is assigned to each gap between adjacent comb teeth 19.
  • Figure 3 shows a cross section through the housing 1; One recognizes therein the intermediate wall 2, at the top the filling hopper 4, the shredding device 3 from the roller 16 with the shredding members 17 and the pivot axis 18 with the comb teeth 19, the V-belt drive 7, the outlet hopper 10 and the conveying device 11.
  • the wall 22 forms a side wall of the discharge funnel 10 and is attached such that it can be folded down, so that the counter-tool or comb teeth 19 are accessible for inspection and maintenance purposes after the wall 22 has been folded down.
  • FIG 3 shows a schematic section of seven comminution members 17 which are axially and circumferentially offset from one another. Each shredding member 17 projects in the circumferential direction from the jacket of the roller 16. At the end facing the counter tool, the comminution member 17 breaks off and determines a striking surface 23 that drops steeply to the jacket of the roller 16 and that can run, for example, radially to the roller 16.
  • the striking surface 23 is designed in a special manner in that a wear-resistant plate 24 is placed on the striking surface 23, which is shown in section in FIG.
  • screw sockets 25 are inserted, welded in the example shown.
  • the screw sockets 25 extend into bores in the comminution member 17, into which fastening screws (not shown) are inserted from the side of the comminution member 17 which faces away from the face 23.
  • the wear-resistant plate 24 is exchangeably fastened to the striking surface 23 of the comminution member 17 in this way.
  • a further improvement on the comminution member 17 can be achieved in that the wear-resistant plate 24, as is also shown in FIG. 4, is clad with a highly wear-resistant material, in particular in the region of the outer edge which faces the counter tool.
  • a recess for receiving a plate 26 made of highly wear-resistant material such as hard metal or the like is formed in the region of the outer edge of the plate 24; instead of the plate 26, the recess can also be filled with welding wire made of such material.
  • the comb tooth 19 of the counter-tool contains at one end a bore 27 for receiving the pivot axis 18.
  • the bore 27 is not a round bore, but contains a flat 28 that corresponds to a flat 29 on the circumference of the pivot axis 18.
  • the comb teeth 19 are non-rotatably connected to the pivot axis 18, so that when the crushing members 17 act on the input material to be crushed, they cannot be pivoted relative to the pivot axis 18 and cannot deflect.
  • the same effect can also be achieved, for example, by a polygonal configuration of the bore 27 and the circumference of the pivot axis 18.
  • FIG. 3 further shows a tooth insert 30 on the comb tooth 19 of the counter tool on the side facing the comminution members 17.
  • FIG. 5 shows a partially sectioned side view of the comb tooth 19 with the bore 27 containing the flat 28 at one end.
  • the comb tooth 19 is provided with a recess 31 for receiving the tooth insert 30.
  • two mounting holes 32 are provided for fastening screws.
  • FIG. 6 shows a section through the tooth insert 30.
  • two screw mounts 33 are inserted or welded into the tooth insert 30, which extend into the receiving bores 32 of the comb tooth 19 and receive fastening screws (not shown).
  • the tooth insert 30 is exchangeably attached to the comb tooth 19.
  • the entire tooth insert 30 is preferably made of a wear-resistant material such as Hardox 500 or the like. Additionally, some may be the most heavily used or If necessary, a covering 34 made of highly wear-resistant material is also attached to all teeth of the tooth insert 30 on the surfaces which cooperate with the crushing members 17 of the roller 16, in the exemplary embodiment shown on the surfaces which spring back into the tooth insert 30.
  • This cladding 34 can consist, for example, of hard metal platelets or welded-on welding wires of the appropriate material.
  • the comb teeth 19 held non-rotatably on the pivot axis 18 project against the roller 16 and, together with the latter, determine a roller gap narrowing towards the roller 16, which in the embodiment shown only has one at the end facing away from the pivot axis 18 has minimal width, so that no material introduced into the hopper 4 can pass the comb teeth 19 into the outlet hopper 10.
  • the crushing members 17 act on the material introduced in such a way that this is first driven by crushing into the narrowing gap between the roller 16 and the counter-tool against the comb teeth 19 and their tooth inserts 30 and then with crushing and cutting crushing in the interaction of the Comminution members 17 and the comb teeth 19 between the comb teeth 19 are discharged into the outlet funnel 10.
  • the counter tool ie the pivot axis 18 with the comb teeth 19 is exposed to high forces during operation of the roller crusher, which tend to pivot the comb teeth 19 by expanding the roller gap about the axis of the pivot axis 18.
  • These forces depend on various factors which are not to be detailed here, but are so high that appropriate support of the counter tool is necessary.
  • the pivot axis 18 is supported on both sides of a servomotor 35, as can be seen in FIG. 7, which shows an end view of the roller crusher.
  • the servomotor 35 shown in FIG. 7 forms, for example, a pressure-operated cylinder 36, which is articulated on a wall of the housing 1, and an actuating piston 37, the free end of which is articulated on one end of a link 38, the other end of which is connected to one end of the pivot axis 18 connected is.
  • a stop 40 which is adjustable by means of an adjusting screw 39, is located, which is located in the travel path of the handlebar 38 and the adjustment of the counter tool or the comb teeth 19 in the direction of the roller 16 limited.
  • the counter tool is brought by the servomotors 35 into its working position shown in solid lines in Figure 7, in which the link 38 and thus the counter tool are biased against the stop 40.
  • the pressure medium-actuated cylinder 36 forms a hydraulic cylinder which is connected to a pressure control 47, which is shown schematically in FIG.
  • This pressure control 47 ensures, on the one hand, that the counter tool experiences only slight deflections in normal operation under the influence of the crushing forces, but on the other hand is deflected when undesirably high crushing forces occur.
  • the pivot axis 18 the comb teeth 19 are then in the position shown in dashed lines in FIG. 7 in the position of the handlebar 38 from the stop 40, as a result of which material which cannot be comminuted can be discharged to the outlet funnel 10 through the gap formed in this way.
  • the pressure controller 47 is connected to a feed pump 48 which is in drive connection with the drive means 5 and forms, for example, a gear pump which is connected on the suction side to a pressure oil tank 49.
  • the feed pump 48 is connected to a 4/3-way valve 50 and via a pressure relief valve 51 to the pressure oil tank 49.
  • the outlet of the 4/3-way valve 50 leads via a line 52 with the interposition of a check valve 53 and a three-way valve 54 to the hydraulic cylinders 36; the line 52 is connected to the pressure oil tank 49 via a further pressure relief valve 55.
  • a pressure switch 56 and pressure accumulator 57 are connected to the line 52 between the cylinders 36 and the check valve 53.
  • the pressure controller 47 described above operates as follows: In the switched-off state of the roller crusher, the counter tool is in the position shown in dashed lines in FIG. 7 in the position of the stop 40.
  • the 4/3-way valve 50 is switched on, so that the line 52 is pressurized with pressure oil by the feed pump 48 and the check valve 53 is opened.
  • the three-way valve 54 is in the open position, the pressure oil enters the cylinders 36 and the actuating pistons 37 are extended until the links 38 come into contact with the respective stops 40.
  • the counter tool has then reached its working position in which the free ends of the comb teeth 19 are at a minimum distance from the roller 16.
  • the pressure limiting valve 55 opens, so that the pressure oil is drained from the cylinders 36 into the pressure oil tank 49.
  • the comb teeth 18 can then be deflected further, as a result of which the material which cannot be comminuted reaches the outlet funnel 10 and can be picked up by the conveying device 11.
  • the pressure switch 56 is actuated again, so that pressure is again applied to the cylinders 36 and the comb teeth 19 are returned to their working position.
  • the three-way valve 54 is adjusted so that the pressure oil flows out of the cylinders 36 and the pressure accumulators 57 into the pressure oil tank 49.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Crushing And Grinding (AREA)
  • Shovels (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

The shredder has shredding teeth (17) on the drum (16) which work with a mating tool, tilting on a spindle (18) parallel to the drum axis. These teeth are at the gaps between the drum teeth. A drive mechanism rotates the drum. The tool working with the drum is comb-shaped, with teeth (19) curved and unable to turn on the pivot spindle (18). These protrude towards the drum so as to form a tapering rolling gap. Adjusting motors (35) act on the spindle near its ends, pre-loading it against a stop (40), and holding the teeth in a predetermined working position in relation to the drum. The comb teeth can contain recesses at the side towards the drum teeth, accommodating toothed inserts of highly wear-resistant material. <IMAGE>

Description

Die Erfindung betrifft einen Walzenzerkleinerer, enthaltend eine Walze mit Zerkleinerungsgliedern, ein zur Walze hin gerichtetes Gegenwerkzeug, das um eine zur Achse der Walze parallele Schwenkachse schwenkbar und mit Gegengliedern versehen ist, die auf Lücke zu den Zerkleinerungsgliedern angeordnet sind, und Antriebsmittel zum rotierenden Antrieb der Walze.The invention relates to a roller crusher, comprising a roller with shredding members, a counter tool directed towards the roller, which can be pivoted about a pivot axis parallel to the axis of the roller and is provided with counter members which are arranged at a gap to the shredding members, and drive means for rotating the drive Roller.

Eine bekannte Vorrichtung dieser Art (DE-OS 26 15 178) zur Verarbeitung von Abfallprodukten enthält in einem Gehäuse eine mit Zähnen versehene Zerkleinerungstrommel unterhalb eines Einfüllschachtes. Die Zähne stehen gerade über den Umfang der Zerkleinerungstrommel vor und wirken mit einem Gegenwerkzeug zusammen. Das Gegenwerkzeug ist innerhalb des Gehäuses um eine Achse schwenkbar gelagert, die parallel zur Achse der Zerkleinerungstrommel verläuft, und enthält bogenförmige Gegenzähne, zwischen denen die Zähne der Zerkleinerungstrommel bei deren Umlauf hindurchtreten. Bei Anwesenheit nicht zerkleinerbarer Teile wird das Gegenwerkzeug ausgeschwenkt. Das zu zerkleinernde Material wird durch den schräg verlaufenden Einfüllschacht zugeführt, der unmittelbar oberhalb der Zerkleinerungstrommel eine besondere Zuführeinrichtung enthält. Unterhalb der Zerkleinerungstrommel befindet sich ein Sammelgefäß zur Aufnahme von zerkleinertem Material.A known device of this type (DE-OS 26 15 178) for processing waste products contains a toothed crushing drum below a filling shaft in a housing. The teeth protrude just beyond the circumference of the shredding drum and work together with a counter tool. The counter tool is pivotally mounted within the housing about an axis which runs parallel to the axis of the comminution drum and contains arc-shaped counter teeth between which the teeth of the comminution drum pass as it rotates. In the presence of parts that cannot be shredded, the counter tool is swung out. The material to be shredded is fed through the inclined feed chute, which contains a special feed device directly above the shredding drum. A collecting vessel for holding shredded material is located underneath the shredding drum.

Eine bekannte Hammermühle (DE-AS 20 34 074) enthält einen Rotor, an dem axiale Reihen von Hämmern im Umfangsabstand voneinander befestigt sind. An einer Seite des Rotors sind Trägersegmente im wesentlichen parallel zum Umfang des Rotors angeordnet und tragen Mahlorgane, die zu den Hämmern auf Lücke stehen. Die Trägersegmente sind an einem Gehäuse über Doppellenker und Gummifedern abgestützt, die mit einer einstellbaren Vorspannung beaufschlagt sind.A known hammer mill (DE-AS 20 34 074) contains a rotor to which axial rows of hammers are attached at a circumferential distance from one another. On one side of the rotor, carrier segments are arranged essentially parallel to the circumference of the rotor and carry grinding elements which are in gap with the hammers. The carrier segments are on a housing Supported by double link and rubber springs, which are loaded with an adjustable preload.

Die Aufgabe der Erfindung besteht darin, einen hochwirksamen Walzenzerkleinerer der eingangs genannten Art von möglichst robustem und einfachen Aufbau zu schaffen.The object of the invention is to provide a highly effective roller crusher of the type mentioned at the outset, which is as robust and simple as possible.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß
   das Gegenwerkzeug kammartig ausgebildet ist, derart, daß die Gegenglieder an der Schwenkachse unverdrehbar angeordnete Kammzähne sind, die bogenförmig ausgebildet sind und unter Ausbildung eines sich verengenden Walzenspalts von der Schwenkachse gegen die Walze vorstehen, und
   nahe den Enden der Schwenkachse angreifende Stellmotore vorgesehen sind, mittels derer die Schwenkachse in Anlage an einen Anschlag und die Kammzähne in eine vorgegebene Arbeitsstellung gegenüber der Walze vorgespannt sind.According to the invention this object is achieved in that
the counter tool is comb-shaped, such that the counter members are non-rotatably arranged comb teeth on the pivot axis, which are arch-shaped and protrude from the pivot axis against the roller to form a narrowing roller gap, and
Actuators engaging near the ends of the pivot axis are provided, by means of which the pivot axis abuts against a stop and the comb teeth are prestressed in a predetermined working position with respect to the roller.

Die erfindungsgemäße Ausbildung des Walzenzerkleinerers enthält einen hochwirksamen, robusten und einfachen Aufbau dadurch, daß das Gegenwerkzeug kammartig ausgebildet ist und die Schwenkachse mit den Kammzähnen durch Stellmotore in ihrer Arbeitsstellung gehalten ist. Die Kammzähne darin sind unverdrehbar mit der Schwenkachse verbunden, die durch die Stellmotore mit einer einstellbaren Gegenkraft gehalten wird, wenn die Walze mit ihren Zerkleinerungsgliedern das zu zerkleinernde Material in den Walzenspalt hineintreibt und brechend und schneidend darauf einwirkt, indem es das Material zwischen den Kammzähnen hindurchtreibt. Es wird so vermieden, daß die Kammzähne schon bei verhältnismäßig geringen einwirkenden Zerkleinerungskräften ausweichen und unzerkleinertes Material an den Kammzähnen vorbei durch die Zerkleinerungseinrichtung hindurchgelangt. Die bogenförmige Ausbildung der Kammzähne trägt dazu bei, daß zwischen den Kammzähnen und der Walze ein enger Walzenspalt gebildet wird und eine intensive, maximale Zerkleinerungswirkung auf das zu zerkleinernde Material ausgeübt wird.The design of the roller crusher according to the invention contains a highly effective, robust and simple structure in that the counter tool is comb-like and the pivot axis with the comb teeth is held in its working position by servomotors. The comb teeth therein are non-rotatably connected to the pivot axis, which is held by the servomotors with an adjustable counterforce when the roller with its comminution members drives the material to be comminuted into the nip and acts on it in a breaking and cutting manner by driving the material between the comb teeth . It is thus avoided that the comb teeth dodge even at relatively low crushing forces and that uncrushed material passes past the comb teeth through the crushing device. The arcuate shape of the comb teeth helps that between the Comb teeth and the roller a narrow nip is formed and an intensive, maximum size reduction effect is exerted on the material to be shredded.

Vorteilhafterweise enthalten die Kammzähne in einer Ausnehmung an der den Zerkleinerungsgliedern zugewandten Seite einen Zahneinsatz aus hochverschleißfestem Material, und auch die Zerkleinerungsglieder enthalten an ihrer Schlagfläche eine verschleißfeste Platte, die an der dem Gegenwerkzeug zugekehrten Seite mit hochverschleißfestem Material verkleidet sein kann. Dadurch wird eine hohe Zerkleinerungswirkung erzielt, ohne daß damit ein besonderer Verschleiß verbunden ist. Bevorzugt sind aber der Zahneinsatz an den Kammzähnen und die verschleißfeste Platte an den Zerkleinerungsgliedern auswechselbar angebracht.Advantageously, the comb teeth contain a tooth insert made of highly wear-resistant material in a recess on the side facing the comminution members, and the comminution members also contain a wear-resistant plate on their face, which can be clad with highly wear-resistant material on the side facing the counter-tool. As a result, a high size reduction effect is achieved without any particular wear. However, the tooth insert on the comb teeth and the wear-resistant plate on the comminution members are preferably interchangeably attached.

In einer weiteren vorteilhaften Ausbildung des Walzenzerkleinerers sind die Stellmotore mit einer Drucksteuerung verbunden, die sicherstellt, daß die Kammzähne ausweichen können, wenn die Zerkleinerung eine zu hohe Kraft erfordert. Auf diese Weise kann eine Beschädigung der Kammzähne und/oder der Zerkleinerungsglieder sicher ausgeschlossen werden.In a further advantageous embodiment of the roller crusher, the servomotors are connected to a pressure control which ensures that the comb teeth can deflect when the comminution requires too much force. In this way, damage to the comb teeth and / or the comminution members can be reliably excluded.

Ein Ausführungsbeispiel der Erfindung ist in den Abbildungen dargestellt und wird nachfolgend an Hand der Bezugszeichen im einzelnen erläutert und beschrieben. Es zeigen

  • Figur 1 eine teilweise geschnittene, schematische Seitenansicht eines Ausführungsbeispiels des neuerungsgemäßen Walzenzerkleinerers;
  • Figur 2 eine teilweise geschnittene, schematische Draufsicht auf eine Zerkleinerungseinrichtung in dem Walzenzerkleinerer nach Figur 1;
  • Figur 3 einen schematischen Querschnitt durch die Zerkleinerungseinrichtung nach Figur 2;
  • Figur 4 eine geschnittene Ansicht einer verschleißfesten Platte in der Zerkleinerungseinrichtung nach Figur 2;
  • Figur 5 eine geschnittene Ansicht eines Kammzahns in der Zerkleinerungseinrichtung nach Figur 2;
  • Figur 6 eine geschnittene Ansicht eines Zahneinsatzes für den Kammzahn nach Figur 6; Figur 7 eine schematische, teilweise geschnittene
  • Endansicht mit einem Stellmotor bei der Zerkleinerungseinrichtung nach Figur 2; und
  • Figur 8 ein schematisches Blockschaltbild einer Drucksteuerung für den Stellmotor nach Figur 7.
An embodiment of the invention is shown in the figures and is explained and described in detail below with reference to the reference numerals. Show it
  • Figure 1 is a partially sectioned, schematic side view of an embodiment of the roller crusher according to the innovation;
  • FIG. 2 shows a partially sectioned, schematic top view of a comminution device in the roller comminutor according to FIG. 1;
  • FIG. 3 shows a schematic cross section through the comminution device according to FIG. 2;
  • FIG. 4 shows a sectional view of a wear-resistant plate in the comminution device according to FIG. 2;
  • FIG. 5 shows a sectional view of a comb tooth in the comminution device according to FIG. 2;
  • FIG. 6 shows a sectional view of a tooth insert for the comb tooth according to FIG. 6; Figure 7 is a schematic, partially sectioned
  • End view with a servomotor in the shredding device according to Figure 2; and
  • FIG. 8 shows a schematic block diagram of a pressure control for the servomotor according to FIG. 7.

Das in Figur 1 schematisch in einer Seitenansicht dargestellte Ausführungsbeispiel eines Walzenzerkleinereres enthält ein allgemein viereckiges Gehäuse 1, das durch eine senkrechte Zwischenwand 2 in einen ersten Gehäuseteil und einen zweiten Gehäuseteil unterteilt ist. Der erste Gehäuseteil nimmt eine Zerkleinerungseinrichtung 3 auf und enthält oben einen Einfülltrichter 4, durch den der Zerkleinerungseinrichtung 3 zum Beispiel mittels eines Radladers eingegebenes, zu zerkleinerndes Material zugeführt wird. Der Einfülltrichter 4 enthält vorzugsweise zwei gegenüberliegende Seiten, deren eine senkrecht zur Zerkleinerungseinrichtung 3 verläuft, wodurch eine Blockierung der weiteren Zufuhr durch das eingegebene Material verhindert wird. Der zweite Gehäuseteil nimmt Antriebsmittel 5 auf, die einen Hauptantriebsmotor 6, in dem dargestellten Ausführungsbeispiel einen Dieselmotor, enthalten, der in üblicher Weise über eine Turbokupplung und einen Keilriementrieb 7 mit einem Getriebe 8 verbunden ist, das mit der Zerkleinerungseinrichtung 3 über ein bekanntes und daher nicht dargestelltes Winkelgetriebe in Antriebsverbindung steht. Die Antriebsmittel 5 enthalten weiterhin übliche und daher nicht im einzelnen dargestellte Versorgungseinrichtungen für Druckmittel zur Betätigung druckmittelbetriebener Komponenten des Walzenzerkleinerers.The exemplary embodiment of a roller shredder shown schematically in FIG. 1 contains a generally square housing 1, which is divided by a vertical partition 2 into a first housing part and a second housing part. The first housing part accommodates a comminution device 3 and contains a feed hopper 4 at the top, through which material to be comminuted which has been input to the comminution device 3, for example by means of a wheel loader, is fed. The hopper 4 preferably contains two opposite sides, one of which runs perpendicular to the shredding device 3, thereby preventing the further feed from being blocked by the material entered. The second housing part accommodates drive means 5 which have a main drive motor 6, in the exemplary embodiment shown a diesel motor, contain, which is connected in the usual way via a turbo coupling and a V-belt drive 7 with a gear 8, which is in drive connection with the shredding device 3 via a known and therefore not shown angular gear. The drive means 5 also contain conventional and therefore not shown in detail supply devices for pressure medium for actuating pressure medium-operated components of the roller crusher.

Das Gehäuse 1 ist normalerweise auf einer Arbeitsfläche abgestellt, auf der das zu zerkleinernde Material in den Einfülltrichter 4 eingegeben wird. An den vier Ecken des Gehäuses 1 ist jeweils ein Druckstempel 9 schwenkbar angeordnet, von denen einer in den Figuren 2 und 3 schematisch gezeigt ist. Während des Betriebs des Walzenzerkleinerers befindet sich der Druckstempel 9 in einer in Figur 2 gezeigten Ruhestellung, in der er entweder einer Gehäusewand anliegt oder in Verlängerung einer Gehäusewand verläuft. In dem dargestellten Ausführungsbeispiel besteht der Druckstempel 9 im wesentlichen aus einem Zylinder 41, der über einen Anschluß 42 an eine Druckmittelquelle angeschlossen ist, und einem Kolben 43 mit einem Stellfuß 44. Der Zylinder 41 ist über Halterungen 45 und Scharniere 46 mit dem Gehäuse 1 verbunden. Zu Transportzwecken werden die Druckstempel 9 mit Hilfe der Scharniere 46 aus ihrer Ruhestellung in eine Arbeitsstellung verschwenkt, in der der Stellfuß 44 auf der Arbeitsfläche aufsteht. Bei Zufuhr von Druckmittel durch den Anschluß 42 wird der Druckstempel 9 ausgefahren und das Gehäuse 1 so weit angehoben, daß ein Sattelauflieger darunter gefahren werden kann. Anschließend wird das angehobene Gehäuse 1 durch Druckentlastung der Druckstempel 9 auf die Tragfläche des Sattelaufliegers abgesenkt.The housing 1 is normally placed on a work surface on which the material to be shredded is fed into the hopper 4. At the four corners of the housing 1, a pressure stamp 9 is pivotally arranged, one of which is shown schematically in FIGS. 2 and 3. During operation of the roller crusher, the pressure ram 9 is in a rest position shown in FIG. 2, in which it either lies against a housing wall or extends in the extension of a housing wall. In the exemplary embodiment shown, the plunger 9 consists essentially of a cylinder 41, which is connected to a pressure medium source via a connection 42, and a piston 43 with an adjusting foot 44. The cylinder 41 is connected to the housing 1 via brackets 45 and hinges 46 . For transport purposes, the pressure rams 9 are pivoted from their rest position into a working position with the aid of the hinges 46, in which the adjusting foot 44 stands on the work surface. When pressure medium is supplied through the connection 42, the pressure ram 9 is extended and the housing 1 is raised so far that a semi-trailer can be moved underneath it. Then the raised housing 1 is lowered by relieving the pressure of the pressure stamp 9 on the wing of the semi-trailer.

Unter der Zerkleinerungseinrichtung 3 befindet sich ein Auslauftrichter 10, der zerkleinertes Material einer Fördereinrichtung 11 zuleitet, die zum Beispiel ein Förderband bildet und parallel zur Achse der Zerkleinerungseinrichtung 3 verläuft. An der dem zweiten Gehäuseteil abgewandten Seite des ersten Gehäuseteils ist an zwei außenseitigen Trägern 12, von denen nur einer in Figur 1 erkennbar ist, eine Abfördereinrichtung 13 mit Seilen 15 und Lenkern 16 gehaltert, von denen ebenfalls nur jeweils eines bzw. einer zu sehen ist. Die Lenker 16 sind mit einem (nicht gezeigten) druckmittelbetätigten Stellmotor verbunden. Die Abfördereinrichtung 13 ist im wesentlichen analog zu dem im Gebrauchsmuster G 93 05 834.9 des gleichen Anmelders beschriebenen Heckförderband einer Zerkleinerungsmaschine ausgebildet. Sie besteht aus zwei Abschnitten, die gelenkig verbunden sind und eine gestreckte Arbeitsstellung und durch Ausfahren des Stellmotors eine gefaltete Transportstellung einnehmen. In der Arbeitsstellung schließt sich die Abfördereinrichtung 13 an die Fördereinrichtung 11 im Gehäuse 1 an und fördert das zerkleinerte Material beispielsweise auf einen Transportwagen, zu einer weiteren Verarbeitungseinrichtung, einer Ablage oder dergleichen. In der Transportstellung ist die Abfördereinrichtung 13 zusammengefaltet und hochgeklappt und wird an der zugehörigen Gehäusewand gehalten.Under the shredding device 3 there is an outlet funnel 10 which feeds shredded material to a conveying device 11 which, for example, forms a conveyor belt and parallel to the axis of the Crushing device 3 runs. On the side of the first housing part facing away from the second housing part, a removal device 13 with ropes 15 and links 16 is held on two outside supports 12, only one of which can be seen in FIG. 1, of which only one or one can be seen in each case . The links 16 are connected to a pressure medium-actuated servomotor (not shown). The removal device 13 is designed essentially analogously to the rear conveyor belt of a comminution machine described in utility model G 93 05 834.9 by the same applicant. It consists of two sections that are articulated and assume an extended working position and a folded transport position by extending the servomotor. In the working position, the conveying device 13 connects to the conveying device 11 in the housing 1 and conveys the comminuted material, for example, to a transport trolley, to a further processing device, a deposit or the like. In the transport position, the discharge device 13 is folded up and folded up and is held on the associated housing wall.

In der teilweise geschnittenen Draufsicht von Figur 2 erkennt man rechts den zweiten Gehäuseteil mit den Antriebsmitteln 5, d.h. dem Hauptantriebsmotor 6 mit Turbokupplung, dem Keilriementrieb 7 und dem Getriebe 8. Die Zerkleinerungseinrichtung 3 besteht aus zwei miteinander zusammenwirkenden Bauteilen. Ein erstes Bauteil wird von einer Walze 16 gebildet, die vorzugsweise als Hohlwalze aausgebildet ist. Ein Ende der Walze 16 ist in der Zwischenwand 2 drehbar gelagert und steht mit dem Getriebe 8 in Antriebsverbindung; ihr anderes Ende ist in einer gegenüberliegenden Wand des Gehäuses 1 drehbar gelagert. Die Walze 16 trägt an ihrem Mantel Zerkleinerungsglieder 17, die im einzelnen weiter unten beschrieben werden. Die Zerkleinerungsglieder 17 sind in axialer Richtung und in Umfangsrichtung gegeneinander versetzt an dem Mantel der Walze 16 angeordnet.The partially sectioned top view of FIG. 2 shows on the right the second housing part with the drive means 5, ie the main drive motor 6 with turbo coupling, the V-belt drive 7 and the transmission 8. The comminution device 3 consists of two components which interact with one another. A first component is formed by a roller 16, which is preferably designed as a hollow roller. One end of the roller 16 is rotatably mounted in the intermediate wall 2 and is in drive connection with the gear 8; its other end is rotatably mounted in an opposite wall of the housing 1. The roller 16 carries on its jacket crushing members 17, which are described in detail below. The crushing members 17 are in arranged axially and circumferentially offset from one another on the jacket of the roller 16.

Ein zweites Bauteil bildet ein Gegenwerkzeug, das kammartig ausgebildet ist und eine Schwenkachse 18 und von der Schwenkachse 18 ausgehende, bogenförmig ausgebildete Kammzähne 19 enthält. Die Schwenkachse 18 verläuft achsparallel zur Walze 16 und ist wie diese mit ihren Enden in der Zwischenwand 2 und der gegenüberliegenden Gehäusewand drehbar gelagert. Die Kammzähne 19 sind auswechselbar angebracht, indem sie mittels einer Bohrung (s.w.u.) auf die Schwenkachse 18 unter Zwischenlage von Abstandsringen 20 aufgeschoben sind; sie werden durch übliche und daher nur schematisch angedeutete Spannmittel über die Arbeitslänge der Schwenkachse 18 gegeneinander verspannt. Die Abstandsringe 20 sind dabei so gewählt, daß ihre axiale Abmessung der axialen Stärke der Zerkleinerungsglieder 17 auf der Walze 16 entspricht, und der Axialabstand benachbarter Zerkleinerungsglieder 17 auf der Walze 16 ist so gewählt, daß er der axialen Abmessung der zugehörigen Kammzähne 19 entspricht. Man erkennt, daß auf diese Weise die Zerkleinerungsglieder 17 und die Kammzähne 19 auf Lücke zueinander angeordnet sind und beim Umlauf der Walze 16 in gegenseitigen Eingriff kommen. Die Anordnung ist dabei vorzugsweise so getroffen, daß jeder Lücke zwischen benachbarten Kammzähnen 19 nur ein Zerkleinerungsglied 17 zugeordnet ist.A second component forms a counter-tool, which is designed like a comb and contains a pivot axis 18 and curved comb teeth 19 starting from the pivot axis 18. The pivot axis 18 runs parallel to the axis of the roller 16 and, like this, is rotatably supported with its ends in the intermediate wall 2 and the opposite housing wall. The comb teeth 19 are interchangeably attached by being pushed onto the pivot axis 18 by means of a hole (see below) with spacer rings 20 interposed; they are braced against one another over the working length of the pivot axis 18 by conventional and therefore only schematically indicated clamping means. The spacer rings 20 are chosen so that their axial dimension corresponds to the axial thickness of the comminution members 17 on the roller 16, and the axial distance between adjacent comminution members 17 on the roller 16 is selected so that it corresponds to the axial dimension of the associated comb teeth 19. It can be seen that in this way the crushing members 17 and the comb teeth 19 are arranged in a gap with one another and come into mutual engagement when the roller 16 rotates. The arrangement is preferably such that only one comminution member 17 is assigned to each gap between adjacent comb teeth 19.

Figur 3 zeigt einen Querschnitt durch das Gehäuse 1; man erkennt darin die Zwischenwand 2, oben den Einfülltrichter 4, die Zerkleinerungseinrichtung 3 aus der Walze 16 mit den Zerkleinerungsgliedern 17 und der Schwenkachse 18 mit den Kammzähnen 19, den Keilriementrieb 7, den Auslauftrichter 10 und die Fördereinrichtung 11. Der Raum, in dem sich die Zerkleinerungseinrichtung 3 befindet, ist auf der Seite der Walze 16 durch eine zu dieser im Abstand parallel verlaufende, bogenförmige Wand 21 und auf der Seite des Gegenwerkzeugs durch eine Wand 22 abgeschlossen, die ebenfalls parallel zur Achse der Walze 16 bzw. der Schwenkachse 18 verläuft. Die Wand 22 bildet eine Seitenwand des Auslauftrichters 10 und ist abklappbar angebracht, wodurch das Gegenwerkzeug bzw. die Kammzähne 19 nach Abklappen der Wand 22 zu Inspektions- und Wartungszwecken zugänglich sind.Figure 3 shows a cross section through the housing 1; One recognizes therein the intermediate wall 2, at the top the filling hopper 4, the shredding device 3 from the roller 16 with the shredding members 17 and the pivot axis 18 with the comb teeth 19, the V-belt drive 7, the outlet hopper 10 and the conveying device 11. The space in which the comminution device 3 is located on the side of the roller 16 by an arcuate wall 21 running parallel to it at a distance and on the side of the counter tool by a wall 22 which also runs parallel to the axis of the roller 16 or the pivot axis 18. The wall 22 forms a side wall of the discharge funnel 10 and is attached such that it can be folded down, so that the counter-tool or comb teeth 19 are accessible for inspection and maintenance purposes after the wall 22 has been folded down.

Figur 3 zeigt in einem schematischen Schnitt sieben Zerkleinerungsglieder 17, die axial und umfangsmäßig gegeneinander versetzt sind. Jedes Zerkleinerungsglied 17 springt in Umlaufrichtung vom Mantel der Walze 16 vor. Am dem dem Gegenwerkzeug zugekehrten Ende bricht das Zerkleinerungsglied 17 ab und bestimmt eine steil zum Mantel der Walze 16 abfallende Schlagfläche 23, die beispielsweise radial zu der Walze 16 verlaufen kann.Figure 3 shows a schematic section of seven comminution members 17 which are axially and circumferentially offset from one another. Each shredding member 17 projects in the circumferential direction from the jacket of the roller 16. At the end facing the counter tool, the comminution member 17 breaks off and determines a striking surface 23 that drops steeply to the jacket of the roller 16 and that can run, for example, radially to the roller 16.

Die Schlagfläche 23 ist in besonderer Weise ausgebildet, indem auf die Schlagfläche 23 eine verschleißfeste Platte 24 aufgesetzt ist, die in Figur 4 im Schnitt dargestellt ist. In die Platte 24 sind Schraubfassungen 25 eingesetzt, im dargestellten Beispiel eingeschweißt. Die Schraubfassungen 25 erstrecken sich in Bohrungen in dem Zerkleinerungsglied 17, in die von der Seite des Zerkleinerungsgliedes 17, die der Schlagfläche 23 abgewandt ist, (nicht gezeigte) Befestigungsschrauben eingeführt werden. Die verschleißfeste Platte 24 ist auf diese Weise auswechselbar an der Schlagfläche 23 des Zerkleinerungsgliedes 17 befestigt.The striking surface 23 is designed in a special manner in that a wear-resistant plate 24 is placed on the striking surface 23, which is shown in section in FIG. In the plate 24 screw sockets 25 are inserted, welded in the example shown. The screw sockets 25 extend into bores in the comminution member 17, into which fastening screws (not shown) are inserted from the side of the comminution member 17 which faces away from the face 23. The wear-resistant plate 24 is exchangeably fastened to the striking surface 23 of the comminution member 17 in this way.

Eine weitere Verbesserung an dem Zerkleinerungsglied 17 läßt sich dadurch erzielen, daß die verschleißfeste Platte 24, wie ebenfalls in Figur 4 gezeigt ist, mit einem hochverschleißfesten Material verkleidet wird, insbesondere im Bereich des äußeren Randes, welcher dem Gegenwerkzeug zugekehrt ist. In der dargestellten Ausführung ist im Bereich des äußeren Randes der Platte 24 eine Ausnehmung zur Aufnahme eines Plättchens 26 aus hochverschleißfestem Material wie Hartmetall oder dergleichen ausgebildet; anstelle des Plättchens 26 kann die Ausnehmung aber auch mit Schweißdraht aus solchem Material ausgefüllt werden.A further improvement on the comminution member 17 can be achieved in that the wear-resistant plate 24, as is also shown in FIG. 4, is clad with a highly wear-resistant material, in particular in the region of the outer edge which faces the counter tool. In the embodiment shown, a recess for receiving a plate 26 made of highly wear-resistant material such as hard metal or the like is formed in the region of the outer edge of the plate 24; instead of the plate 26, the recess can also be filled with welding wire made of such material.

In Figur 3 ist ebenfalls erkennbar, daß der Kammzahn 19 des Gegenwerkzeugs an einem Ende eine Bohrung 27 zur Aufnahme der Schwenkachse 18 enthält. Die Bohrung 27 ist jedoch keine Rundbohrung, sondern enthält eine Abflachung 28, die einer Abflachung 29 am Umfang der Schwenkachse 18 entspricht. Auf diese Weise wird erreicht, daß die Kammzähne 19 unverdrehbar mit der Schwenkachse 18 verbunden sind, sodaß diese bei Einwirkung der Zerkleinerungsglieder 17 auf das eingegebene, zu zerkleinernde Material gegenüber der Schwenkachse 18 nicht verschwenkt werden und nicht ausweichen können. Die gleiche Wirkung läßt sich beispielsweise auch durch eine polygonale Ausgestaltung der Bohrung 27 und des Umfangs der Schwenkachse 18 erreichen.In Figure 3 it can also be seen that the comb tooth 19 of the counter-tool contains at one end a bore 27 for receiving the pivot axis 18. However, the bore 27 is not a round bore, but contains a flat 28 that corresponds to a flat 29 on the circumference of the pivot axis 18. In this way it is achieved that the comb teeth 19 are non-rotatably connected to the pivot axis 18, so that when the crushing members 17 act on the input material to be crushed, they cannot be pivoted relative to the pivot axis 18 and cannot deflect. The same effect can also be achieved, for example, by a polygonal configuration of the bore 27 and the circumference of the pivot axis 18.

Figur 3 zeigt weiterhin einen Zahneinsatz 30 an dem Kammzahn 19 des Gegenwerkzeugs an der den Zerkleinerungsgliedern 17 zugekehrten Seite. Im Detail zeigt Figur 5 eine teilweise geschnittene Seitenansicht des Kammzahns 19 mit der die Abflachung 28 enthaltenden Bohrung 27 an einem Ende. An der den Zerkleinerungsgliedern 17 zugekehrten Seite ist der Kammzahn 19 mit einer Ausnehmung 31 zur Aufnahme des Zahneinsatzes 30 versehen. Am Grunde der Ausnehmung sind zwei Aufnahmebohrungen 32 für Befestigungsschrauben vorgesehen.FIG. 3 further shows a tooth insert 30 on the comb tooth 19 of the counter tool on the side facing the comminution members 17. In detail, FIG. 5 shows a partially sectioned side view of the comb tooth 19 with the bore 27 containing the flat 28 at one end. On the side facing the shredding members 17, the comb tooth 19 is provided with a recess 31 for receiving the tooth insert 30. At the bottom of the recess, two mounting holes 32 are provided for fastening screws.

Figur 6 zeigt einen Schnitt durch den Zahneinsatz 30. An der der Zähnung abgewandten Seite sind in den Zahneinsatz 30 zwei Schraubfassungen 33 eingesetzt bzw. eingeschweißt, die in die Aufnahmebohrungen 32 des Kammzahns 19 hineinreichen und (nicht gezeigte) Befestigungsschrauben aufnehmen. Auf diese Weise ist der Zahneinsatz 30 auswechselbar an dem Kammzahn 19 befestigt. Der ganze Zahneinsatz 30 besteht vorzugsweise aus einem verschleißfesten Material wie Hardox 500 oder dergleichen. Zusätzlich kann an einigen, am stärksten beanspruchten oder gegebenenfalls auch an allen Zähnen des Zahneinsatzes 30 an den Flächen, die mit den Zerkleinerungsgliedern 17 der Walze 16 zusammenwirken, im gezeigten Ausführungsbeispiel an den Flächen, die in den Zahneinsatz 30 zurückspringen, eine Verkleidung 34 aus hochverschleißfestem Material angebracht werden. Diese Verkleidung 34 kann beispielsweise aus Hartmetallplättchen oder aufgeschweißten Schweißdrähten aus entsprechendem Material bestehen.FIG. 6 shows a section through the tooth insert 30. On the side facing away from the toothing, two screw mounts 33 are inserted or welded into the tooth insert 30, which extend into the receiving bores 32 of the comb tooth 19 and receive fastening screws (not shown). In this way, the tooth insert 30 is exchangeably attached to the comb tooth 19. The entire tooth insert 30 is preferably made of a wear-resistant material such as Hardox 500 or the like. Additionally, some may be the most heavily used or If necessary, a covering 34 made of highly wear-resistant material is also attached to all teeth of the tooth insert 30 on the surfaces which cooperate with the crushing members 17 of the roller 16, in the exemplary embodiment shown on the surfaces which spring back into the tooth insert 30. This cladding 34 can consist, for example, of hard metal platelets or welded-on welding wires of the appropriate material.

Wie Figur 3 zeigt, stehen die unverdrehbar an der Schwenkachse 18 gehalterten Kammzähne 19 gegen die Walze 16 vor und bestimmen zusammen mit dieser einen sich zur Walze 16 hin verengenden Walzenspalt, der in der dargestellten Ausführung an dem von der Schwenkachse 18 abgewandten Ende nur noch eine minimale Weite hat, sodaß kein in den Einfülltrichter 4 eingebrachtes Material an den Kammzähnen 19 vorbei in den Auslauftrichter 10 gelangen kann. Die Zerkleinerungsglieder 17 wirken dabei auf das eingebrachte Material in der Weise ein, daß dies zunächst unter Zerkleinerung in den sich verengenden Spalt zwischen der Walze 16 und dem Gegenwerkzeug gegen die Kammzähne 19 und deren Zahneinsätze 30 vorgetrieben und dann unter brechender und schneidender Zerkleinerung im Zusammenwirken der Zerkleinerungsglieder 17 und der Kammzähne 19 zwischen den Kammzähnen 19 hindurch in den Auslauftrichter 10 abgeleitet wird.As FIG. 3 shows, the comb teeth 19 held non-rotatably on the pivot axis 18 project against the roller 16 and, together with the latter, determine a roller gap narrowing towards the roller 16, which in the embodiment shown only has one at the end facing away from the pivot axis 18 has minimal width, so that no material introduced into the hopper 4 can pass the comb teeth 19 into the outlet hopper 10. The crushing members 17 act on the material introduced in such a way that this is first driven by crushing into the narrowing gap between the roller 16 and the counter-tool against the comb teeth 19 and their tooth inserts 30 and then with crushing and cutting crushing in the interaction of the Comminution members 17 and the comb teeth 19 between the comb teeth 19 are discharged into the outlet funnel 10.

Das Gegenwerkzeug, d.h. die Schwenkachse 18 mit den Kammzähnen 19 ist im Betrieb des Walzenzerkleinerers hohen Kräften ausgesetzt, die dazu tendieren, die Kammzähne 19 unter Erweiterung des Walzenspalts um die Achse der Schwenkachse 18 zu verschwenken. Diese Kräfte hängen von unterschiedlichen Faktoren ab, die hier nicht im einzelnen aufgeführt werden sollen, sind aber so hoch, daß eine zweckentsprechende Abstützung des Gegenwerkzeugs notwendig ist. Gleichzeitig muß aber auch sichergestellt werden, daß das Gegenwerkzeug bzw. die Kammzähne 19 ausschwenken können, wenn beispielsweise nicht zerkleinerbares Material in den Einfülltrichter 4 eingebracht wird. Aus diesem Grunde ist die Schwenkachse 18 nahe beiden Enden jeweils an einem Stellmotor 35 abgestützt, wie sich aus Figur 7 ergibt, die eine Endansicht des Walzenzerkleinerers zeigt. Man erkennt darin die bereits in Figur 3 gezeigten Bauteile, nämlich das Gehäuse 1, die Zwischenwand 2, den Einfülltrichter 4, die Zerkleinerungseinrichtung 3 aus der Walze 16 mit den Zerkleinerungsgliedern 17 und der Schwenkachse 18 mit den Kammzähnen 19, den Keilriementrieb 7, den Auslauftrichter 10, die Fördereinrichtung 11, die bogenförmige Wand 21 und die abklappbare Wand 22.The counter tool, ie the pivot axis 18 with the comb teeth 19 is exposed to high forces during operation of the roller crusher, which tend to pivot the comb teeth 19 by expanding the roller gap about the axis of the pivot axis 18. These forces depend on various factors which are not to be detailed here, but are so high that appropriate support of the counter tool is necessary. At the same time, however, it must also be ensured that the counter tool or the comb teeth 19 can pivot out, for example if material which cannot be comminuted is introduced into the hopper 4. For this reason, the pivot axis 18 is supported on both sides of a servomotor 35, as can be seen in FIG. 7, which shows an end view of the roller crusher. One recognizes therein the components already shown in FIG. 3, namely the housing 1, the intermediate wall 2, the filling funnel 4, the comminution device 3 from the roller 16 with the comminution members 17 and the pivot axis 18 with the comb teeth 19, the V-belt drive 7, the outlet funnel 10, the conveyor 11, the arcuate wall 21 and the foldable wall 22nd

Der in Figur 7 dargestellte Stellmotor 35 bildet beispielhaft einen druckmittelbetätigten Zylinder 36, der an einer Wand des Gehäuses 1 angelenkt ist, und einen Stellkolben 37, dessen freies Ende an ein Ende eines Lenkers 38 angelenkt ist, dessen anderes Ende mit einem Ende der Schwenkachse 18 verbunden ist. An der Gehäusewand, die quer zur Zerkleinerungseinrichtung 3 verläuft und der Zwischenwand 2 gegenüberliegt, ist ein durch eine Stellschraube 39 einstellbarer Anschlag 40 angebracht, der sich im Stellweg des Lenkers 38 befindet und die Verstellung des Gegenwerkzeugs bzw. der Kammzähne 19 in Richtung auf die Walze 16 begrenzt. Das Gegenwerkzeug wird durch die Stellmotore 35 in seine in Figur 7 in durchgezogenen Linien gezeigte Arbeitsstellung gebracht, in der die Lenker 38 und damit das Gegenwerkzeug gegen den Anschlag 40 vorgespannt sind.The servomotor 35 shown in FIG. 7 forms, for example, a pressure-operated cylinder 36, which is articulated on a wall of the housing 1, and an actuating piston 37, the free end of which is articulated on one end of a link 38, the other end of which is connected to one end of the pivot axis 18 connected is. On the housing wall, which runs transversely to the shredding device 3 and opposite the intermediate wall 2, a stop 40, which is adjustable by means of an adjusting screw 39, is located, which is located in the travel path of the handlebar 38 and the adjustment of the counter tool or the comb teeth 19 in the direction of the roller 16 limited. The counter tool is brought by the servomotors 35 into its working position shown in solid lines in Figure 7, in which the link 38 and thus the counter tool are biased against the stop 40.

Der druckmittelbetätigte Zylinder 36 bildet in dem dargestellten Ausführungsbeispiel einen hydraulischen Zylinder, der mit einer Drucksteuerung 47 verbunden ist, die schematisch in Figur 8 dargestellt ist. Diese Drucksteuerung 47 stellt einerseits sicher, daß das Gegenwerkzeug im normalen Betrieb unter Einwirkung der Zerkleinerungskräfte nur geringfügige Auslenkungen erfährt, aber andererseits beim Auftreten unerwünscht hoher Zerkleinerungskräfte ausgelenkt wird. Die Schwenkachse 18 mit den Kammzähnen 19 befindet sich dann in der in Figur 7 gestrichelt gezeigten Stellung in Ablage des Lenkers 38 vom Anschlag 40, wodurch nicht zerkleinerbares Material durch die so gebildete Lücke zum Auslauftrichter 10 abgeleitet werden kann.In the exemplary embodiment shown, the pressure medium-actuated cylinder 36 forms a hydraulic cylinder which is connected to a pressure control 47, which is shown schematically in FIG. This pressure control 47 ensures, on the one hand, that the counter tool experiences only slight deflections in normal operation under the influence of the crushing forces, but on the other hand is deflected when undesirably high crushing forces occur. The pivot axis 18 the comb teeth 19 are then in the position shown in dashed lines in FIG. 7 in the position of the handlebar 38 from the stop 40, as a result of which material which cannot be comminuted can be discharged to the outlet funnel 10 through the gap formed in this way.

Im einzelnen ist die Drucksteuerung 47 an eine Speisepumpe 48 angeschlossen, die mit den Antriebsmitteln 5 in Antriebsverbindung steht und beispielsweise eine Zahnradpumpe bildet, die saugseitig mit einem Drucköltank 49 verbunden ist. Ausgangsseitig ist die Speisepumpe 48 mit einem 4/3-Wegeventil 50 und über ein Druckbegrenzungsventil 51 mit dem Drucköltank 49 verbunden. Der Ausgang des 4/3-Wegeventils 50 führt über eine Leitung 52 unter Zwischenschaltung eines Rückschlagventils 53 und eines Dreiwegehahns 54 zu den hydraulischen Zylindern 36; die Leitung 52 ist über ein weiteres Druckbegrenzungsventil 55 an den Drucköltank 49 angeschlossen. Ferner sind mit der Leitung 52 zwischen den Zylindern 36 und dem Rückschlagventil 53 ein Druckschalter 56 und Druckspeicher 57 verbunden.In particular, the pressure controller 47 is connected to a feed pump 48 which is in drive connection with the drive means 5 and forms, for example, a gear pump which is connected on the suction side to a pressure oil tank 49. On the output side, the feed pump 48 is connected to a 4/3-way valve 50 and via a pressure relief valve 51 to the pressure oil tank 49. The outlet of the 4/3-way valve 50 leads via a line 52 with the interposition of a check valve 53 and a three-way valve 54 to the hydraulic cylinders 36; the line 52 is connected to the pressure oil tank 49 via a further pressure relief valve 55. Furthermore, a pressure switch 56 and pressure accumulator 57 are connected to the line 52 between the cylinders 36 and the check valve 53.

Die vorstehend beschriebene Drucksteuerung 47 arbeitet wie folgt:
   Im ausgeschalteten Zustand des Walzenzerkleinerers befindet sich das Gegenwerkzeug in der in Figur 7 gestrichelt gezeigten Stellung in Ablage von dem Anschlag 40. Bei Inbetriebnahme wird das 4/3-Wegeventil 50 eingeschaltet, sodaß die Leitung 52 durch die Speisepumpe 48 mit Drucköl beaufschlagt und das Rückschlagventil 53 geöffnet wird. Bei geöffneter Stellung des Dreiwegehahns 54 gelangt das Drucköl in die Zylinder 36, und die Stellkolben 37 werden ausgefahren bis die Lenker 38 in Anlage an die jeweiligen Anschläge 40 kommen. Das Gegenwerkzeug hat dann seine Arbeitsstellung erreicht, in der die freien Enden der Kammzähne 19 einen minimalen Abstand zur Walze 16 einnehmen.The pressure controller 47 described above operates as follows:
In the switched-off state of the roller crusher, the counter tool is in the position shown in dashed lines in FIG. 7 in the position of the stop 40. When starting up, the 4/3-way valve 50 is switched on, so that the line 52 is pressurized with pressure oil by the feed pump 48 and the check valve 53 is opened. When the three-way valve 54 is in the open position, the pressure oil enters the cylinders 36 and the actuating pistons 37 are extended until the links 38 come into contact with the respective stops 40. The counter tool has then reached its working position in which the free ends of the comb teeth 19 are at a minimum distance from the roller 16.

Beim Einbringen von zu zerkleinerndem Material in den Walzenzerkleinerer können durch unterschiedliche Zerkleinerungswiderstände des Materials vorübergehend Kräfte an den Kammzähnen 18 und damit auch an den Stellkolben 37 auftreten, die vorübergehende Druckerhöhungen in den Zylindern 36 hervorrufen. Diese vorübergehenden Druckerhöhungen werden von den Druckspeichern 57, die eine Pufferwirkung haben, aufgenommen und führen zu geringfügigen Auslenkungen der Kammzähne 18, wodurch die Zerkleinerungsarbeit des Walzenzerkleinerers nur unwesentlich oder gar nicht beeinflußt wird. Bei andauernden, hohen Zerkleinerungswiderständen wird der Druckschalter 56 betätigt und die Leitung 52 zum 4/3-Wegeventil 50 hin durch das Rückschlagventil 53 gesperrt, sodaß an der Speisepumpe 48 kein Gegendruck auftreten kann. Als weitere Folge und bei weiter zunehmendem Druck in den Zylindern 36 öffnet das Druckbegrenzungsventil 55, sodaß das Drucköl aus den Zylindern 36 in den Drucköltank 49 abgelassen wird. Die Kammzähne 18 können dann weiter ausgelenkt werden, wodurch das nicht zerkleinerbare Material in den Auslauftrichter 10 gelangen und von der Fördereinrichtung 11 aufgenommen werden kann. Durch den dadurch eintretenden Druckabfall wird der Druckschalter 56 erneut betätigt, sodaß wieder Druck auf die Zylinder 36 gegeben wird und die Kammzähne 19 in ihre Arbeitsstellung zurückgeführt werden. Beim Abschalten der Maschine wird der Dreiwegehahn 54 so verstellt, daß das Drucköl aus den Zylindern 36 und den Druckspeichern 57 in den Drucköltank 49 abfließt.When material to be shredded is introduced into the roller shredder, different shredding resistances of the material can temporarily cause forces on the comb teeth 18 and thus also on the actuating piston 37, which cause temporary pressure increases in the cylinders 36. These temporary pressure increases are absorbed by the pressure accumulators 57, which have a buffer effect, and lead to slight deflections of the comb teeth 18, as a result of which the crushing work of the roller crusher is influenced only insignificantly or not at all. If the crushing resistances are high, the pressure switch 56 is actuated and the line 52 to the 4/3-way valve 50 is blocked by the check valve 53, so that no back pressure can occur at the feed pump 48. As a further consequence and with a further increasing pressure in the cylinders 36, the pressure limiting valve 55 opens, so that the pressure oil is drained from the cylinders 36 into the pressure oil tank 49. The comb teeth 18 can then be deflected further, as a result of which the material which cannot be comminuted reaches the outlet funnel 10 and can be picked up by the conveying device 11. Due to the resulting drop in pressure, the pressure switch 56 is actuated again, so that pressure is again applied to the cylinders 36 and the comb teeth 19 are returned to their working position. When the machine is switched off, the three-way valve 54 is adjusted so that the pressure oil flows out of the cylinders 36 and the pressure accumulators 57 into the pressure oil tank 49.

Claims (21)

Walzenzerkleinerer, enthaltend eine Walze (16) mit Zerkleinerungsgliedern (17), ein zur Walze (16) hin gerichtetes Gegenwerkzeug, das um eine zur Achse der Walze (16) parallele Schwenkachse (18) schwenkbar und mit Gegengliedern versehen ist, die auf Lücke zu den Zerkleinerungsgliedern (17) angeordnet sind, und Antriebsmittel zum rotierenden Antrieb der Walze (16),
dadurch gekennzeichnet, daß
das Gegenwerkzeug kammartig ausgebildet ist, derart, daß die Gegenglieder an der Schwenkachse (18) unverdrehbar angeordnete Kammzähne (19) sind, die bogenförmig ausgebildet sind und unter Ausbildung eines sich verengenden Walzenspalts von der Schwenkachse (18) gegen die Walze (16) vorstehen, und
nahe den Enden der Schwenkachse (18) angreifende Stellmotore (35) vorgesehen sind, mittels derer die Schwenkachse (18) in Anlage an einen Anschlag (40) und die Kammzähne (19) in eine vorgegebene Arbeitsstellung gegenüber der Walze (16) vorgespannt sind.Roll shredder, comprising a roller (16) with shredding members (17), a counter-tool directed towards the roller (16), which can be pivoted about a pivot axis (18) parallel to the axis of the roller (16) and is provided with counter-members which point towards a gap the crushing members (17) are arranged, and drive means for rotating the roller (16),
characterized in that
the counter-tool is comb-shaped, such that the counter-links on the pivot axis (18) are comb teeth (19) arranged non-rotatably, which are arch-shaped and protrude from the pivot axis (18) against the roller (16) with the formation of a narrowing roller gap, and
Servo motors (35) engaging near the ends of the pivot axis (18) are provided, by means of which the pivot axis (18) is biased against a stop (40) and the comb teeth (19) are biased into a predetermined working position with respect to the roller (16). Walzenzerkleinerer nach Anspruch 1, dadurch gekennzeichnet, daß die Kammzähne (19) in einer Ausnehmung (31) an der den Zerkleinerungsgliedern (17) der Walze (16) zugekehrten Seite einen Zahneinsatz (30) aus einem hochverschleißfesten Material enthalten.Roller shredder according to claim 1, characterized in that the comb teeth (19) contain a tooth insert (30) made of a highly wear-resistant material in a recess (31) on the side facing the shredding members (17) of the roller (16). Walzenzerkleinerer nach Anspruch 2, dadurch gekennzeichnet, daß wenigstens ein Teil der Zähne des Zahneinsatzes (30) an einer mit den Zerkleinerungsgiedern (17) an der Walze (16) zusammenwirkenden Fläche mit einer hochverschleißfesten Verkleidung (34) versehen ist.Roller crusher according to claim 2, characterized in that at least a part of the teeth of the tooth insert (30) on one with the Shredding members (17) on the roller (16) interacting surface is provided with a highly wear-resistant covering (34). Walzenzerkleinerer nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß der Zahneinsatz (30) auswechselbar in der Ausnehmung (31) gehaltert ist.Roller crusher according to claim 2 or 3, characterized in that the tooth insert (30) is held interchangeably in the recess (31). Walzenzerkleinerer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Kammzähne (19) an einem der Walze (16) abgekehrten Ende eine Bohrung (27) mit einer Abflachung (28) aufweisen und die Schwenkachse (18) eine Umfangsfläche mit einer Abflachung (29) enthält, daß die Kammzähne (19) durch Abstandsringe (20) in einem vorgegebenen Abstand voneinander an der Schwenkachse (18) angeordnet sind, und daß die Kammzähne (19) auswechselbar an der Schwenkachse (18) gehaltert sind.Roll shredder according to one of Claims 1 to 4, characterized in that the comb teeth (19) have a bore (27) with a flattened portion (28) at one end facing away from the roller (16) and the pivot axis (18) has a circumferential surface with a flattened portion (29) contains that the comb teeth (19) are arranged by spacer rings (20) at a predetermined distance from each other on the pivot axis (18), and that the comb teeth (19) are held interchangeably on the pivot axis (18). Walzenzerkleinerer nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Stellmotore (35) jeweils einen druckmittelbetätigten Zylinder (36) und einen Stellkolben (37) enthalten, der an einem mit der Schwenkachse (18) verbundenen Lenker (38) angreift, daß der Anschlag (40) ein einstellbarer Anschlag ist und daß der Lenker (38) in Arbeitsstellung des Gegenwerkzeugs an dem einstellbaren Anschlag anliegt.Roll shredder according to one of the preceding claims, characterized in that the servomotors (35) each contain a pressure-actuated cylinder (36) and an actuating piston (37) which acts on a link (38) connected to the pivot axis (18) such that the stop (40) is an adjustable stop and that the handlebar (38) rests against the adjustable stop in the working position of the counter tool. Walzenzerkleinerer nach Anspruch 6, dadurch gekennzeichnet, daß die druckmittelbetätigten Zylinder (36) mit einer Drucksteuerung (47) verbunden und mittels der Drucksteuerung (47) die Zylinder (36) mit Druckmittel von einem vorgegebenen Arbeitsdruck beaufschlagbar sind, bei dem das Gegenwerkzeug in der Arbeitsstellung gehalten ist, und daß die Stellkolben (37) bei Überschreiten eines vorgegebenen Maximaldrucks in den Zylindern (36) rückfahrbar und das Gegenwerkzeug aus der Arbeitsstellung auslenkbar sind.Roll shredder according to Claim 6, characterized in that the pressure medium-actuated cylinders (36) are connected to a pressure control (47) and by means of the pressure control (47) the cylinders (36) can be acted upon by a predetermined working pressure at which the counter tool is in the working position is held, and that the actuating piston (37) can be reversed when a predetermined maximum pressure in the cylinders (36) is exceeded and the counter tool can be deflected out of the working position. Walzenzerkleinerer nach Anspruch 7, dadurch gekennzeichnet, daß die Drucksteuerung (47) ein 4/3-Wegeventil (50) aufweist, das eingangsseitig an eine Speisepumpe (48) und ausgangsseitig über ein Rückschlagventil (53) an die Zylinder (36) angeschlossen ist, die über ein Druckbegrenzungsventil (55) mit einem Druckmittelvorrat (49) verbunden sind, und daß die Zylinder (36) an Druckspeicher (57) angeschlossen sind.Roll shredder according to Claim 7, characterized in that the pressure control (47) has a 4/3-way valve (50) which is connected on the inlet side to a feed pump (48) and on the outlet side via a check valve (53) to the cylinders (36), which are connected via a pressure relief valve (55) to a pressure medium supply (49) and that the cylinders (36) are connected to pressure accumulators (57). Walzenzerkleinerer nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Zerkleinerungsglieder (17) am Mantel der Walze (16) in Umfangsrichtung und in Axialrichtung gegeneinander versetzt angebracht sind.Roller shredder according to one of claims 1 to 8, characterized in that the shredding members (17) are attached to the jacket of the roller (16) offset in the circumferential direction and in the axial direction. Walzenzerkleinerer nach Anspruch 9, dadurch gekennzeichnet, daß die Zerkleinerungsglieder (17) in Umlaufrichtung vom Mantel der Walze (16) vorspringen und eine steil zum Mantel der Walze (16) abfallende Schlagfläche (23) bestimmen.Roller shredder according to claim 9, characterized in that the shredding members (17) project in the circumferential direction from the jacket of the roller (16) and determine a face (23) which drops steeply to the jacket of the roller (16). Walzenzerkleinerer nach Anspruch 10, dadurch gekennzeichnet, daß die Schlagfläche (23) mit einer verschleißfesten Platte (24) versehen ist.Roller crusher according to claim 10, characterized in that the striking surface (23) is provided with a wear-resistant plate (24). Walzenzerkleinerer nach Anspruch 10 oder 11, dadurch gekennzeichnet, daß die verschleißfeste Platte (24) an einer dem Gegenwerkzeug zugekehrten Fläche wenigstens teilweise mit hochverschleißfestem Material verkleidet ist.Roll shredder according to claim 10 or 11, characterized in that the wear-resistant plate (24) is at least partially covered with highly wear-resistant material on a surface facing the counter-tool. Walzenzerkleinerer nach Anspruch 12, dadurch gekennzeichnet, daß die verschleißfeste Platte (24) auswechselbar an der Schlagfläche (23) befestigt ist.Roller crusher according to claim 12, characterized in that the wear-resistant plate (24) is exchangeably attached to the striking surface (23). Walzenzerkleinerer nach einem der Ansprüche 9 bis 13, dadurch gekennzeichnet, daß benachbarte Zerkleinerungsglieder (17) am Mantel der Walze (16) einen Axialabstand entsprechend der Abmessung der zugehörigen Kammzähne (19) haben, sodaß jeder Lücke zwischen den Kammzähnen (19) des Gegenwerkzeugs nur ein Zerkleinerungsglied (17) der Walze (16) zugeordnet ist.Roll shredder according to one of claims 9 to 13, characterized in that adjacent shredding members (17) on the jacket of the roller (16) have an axial distance corresponding to the dimension of the associated comb teeth (19), so that each gap between the comb teeth (19) of the counter tool is assigned only one comminution member (17) of the roller (16). Walzenzerkleinerer nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Walze (16) und das Gegenwerkzeug von einem Gehäuse (1) umgeben sind, daß die Enden der Walze (16) und die Enden der Schwenkachse (18) des Gegenwerkzeugs in einer Gehäusewand und einer Zwischenwand (2) des Gehäuses (1) drehbar gelagert sind, daß das Gehäuse (1) einen zur Zerkleinerungseinrichtung (3) führenden Einfülltrichter (4) enthält, und daß die Zwischenwand (2) des Gehäuses (1) einen die Antriebsmittel (5) enthaltenden Gehäuseteil von dem die Zerkleinerungseinrichtung (3) enthaltenden Gehäuseteil trennt.Roller crusher according to one of the preceding claims, characterized in that the roller (16) and the counter tool are surrounded by a housing (1), that the ends of the roller (16) and the ends of the pivot axis (18) of the counter tool in a housing wall and an intermediate wall (2) of the housing (1) is rotatably mounted, that the housing (1) contains a hopper (4) leading to the shredding device (3), and that the intermediate wall (2) of the housing (1) holds the drive means (5 ) containing the housing part from the housing part containing the comminution device (3). Walzenzerkleinerer nach Anspruch 15, dadurch gekennzeichnet, daß der Einfülltrichter (4) zwei gegenüberliegende Seiten enthält, deren eine senkrecht zur Achse der Walze (16) verläuft.Roller crusher according to claim 15, characterized in that the hopper (4) contains two opposite sides, one of which is perpendicular to the axis of the roller (16). Walzenzerkleinerer nach einem der Ansprüche 14 oder 15, dadurch gekennzeichnet, daß die Walze (16) innerhalb des Gehäuses (1) an der dem Gegenwerkzeug abgekehrten Seite von einer bogenförmigen, parallel zur Walze (16) verlaufenden Wandung (21) abgedeckt ist und daß das Gegenwerkzeug innerhalb des Gehäuses (1) an der der Walze (16) abgekehrten Seite von einer abklappbaren Wand (22) abgedeckt ist.Roller shredder according to one of claims 14 or 15, characterized in that the roller (16) inside the housing (1) on the side facing away from the counter-tool is covered by an arcuate wall (21) running parallel to the roller (16) and that Counter tool within the housing (1) on the side facing away from the roller (16) is covered by a foldable wall (22). Walzenzerkleinerer nach einem der Ansprüche 15 bis 17, dadurch gekennzeichnet, daß in dem Gehäuse (1) unterhalb der Zerkleierungseinrichtung (3) ein Auslauftrichter (10) angeordnet ist und daß sich unterhalb des Auslauftrichters (10) eine Fördereinrichtung (11) erstreckt, die parallel zur Achse der Walze (16) verläuft.Roll shredder according to one of Claims 15 to 17, characterized in that an outlet funnel (10) is arranged in the housing (1) below the comminution device (3) and that there is an outlet funnel (10) below the outlet funnel (10) Conveying device (11) extends parallel to the axis of the roller (16). Walzenzerkleinerer nach Anspruch 17 oder 18, dadurch gekennzeichnet, daß die abklappbare Wand (22) eine Seitenwand des Auslauftrichters (10) bildet.Roll shredder according to claim 17 or 18, characterized in that the foldable wall (22) forms a side wall of the discharge funnel (10). Walzenzerkleinerer nach Anspruch 18 oder 19, dadurch gekennzeichnet, daß die Fördereinrichtung (11) von einer Abfördereinrichtung (13) gefolgt ist, die außenseitig an dem Gehäuse (1) angebracht ist.Roll shredder according to claim 18 or 19, characterized in that the conveying device (11) is followed by a conveying device (13) which is attached to the outside of the housing (1). Walzenzerkleinerer nach einem der Ansprüche 15 bis 20, dadurch gekennzeichnet, daß an dem Gehäuse eine Mehrzahl von druckmittelbetätigten Stempeln (9) schwenkbar angeordnet sind.Roller crusher according to one of claims 15 to 20, characterized in that a plurality of pressure medium-actuated rams (9) are pivotably arranged on the housing.
EP95107278A 1994-06-16 1995-05-13 Roll Shredder Expired - Lifetime EP0687503B1 (en)

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DE9409707U DE9409707U1 (en) 1994-06-16 1994-06-16 Roll shredder

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011119595A1 (en) 2011-11-29 2013-05-29 Pallmann Maschinenfabrik Gmbh & Co Kg Device for crushing feedstock
GR1009215B (en) * 2016-09-15 2018-02-14 Χρηστος Νικολαου Γιαννακοπουλος A crusher having knives-hammers placed on tubes set on the rotary frame of a vat having an ajustable exit funnel thereon
CN110769937A (en) * 2017-06-28 2020-02-07 多普斯塔德特家族控股有限公司 Crushing apparatus
CN112203770A (en) * 2018-05-23 2021-01-08 维米尔制造公司 Chopping machine for crushing bulk material
KR102211423B1 (en) * 2020-07-07 2021-02-03 주식회사 파워리텍 Single roll type roll crusher

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3492193B2 (en) 1998-03-20 2004-02-03 日本スピンドル製造株式会社 Crushing equipment
DE10306765B4 (en) * 2003-02-17 2005-03-10 Heinrich Bergmann Device for rendering beverage empties unusable
DE202010006078U1 (en) 2010-04-25 2011-09-01 Doppstadt Familienholding Gmbh Comb-tooth holder
TW201202178A (en) 2010-06-04 2012-01-16 Chemo Iberica Sa Process for producing Aliskiren
DE202011103859U1 (en) * 2011-07-18 2012-10-22 Komptech Gmbh Tool for a shredding device
DE102012216914B4 (en) * 2012-09-20 2017-01-05 Hammel GmbH & Co.KG comminution device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB650200A (en) * 1948-09-29 1951-02-14 Oscar Legg Improvements in and relating to paper shredding machines
US3578780A (en) * 1968-12-30 1971-05-18 Dec Int Apparatus for comminuting materials
FR2127685A5 (en) * 1971-02-23 1972-10-13 Benson Ind Ltd
FR2233470A1 (en) * 1973-06-18 1975-01-10 Testut Aequitas Large scale waste disposal unit - has cooperating blades on rotary cylinder and pivoting door within duct
DE3245199A1 (en) * 1982-12-07 1984-06-07 Strabag Bau-AG, 5000 Köln Device for comminuting consolidated rock mixtures in lump form
EP0182749A2 (en) * 1984-11-16 1986-05-28 Société Industrielle de la Doux S.A. Shredder having two horizontally rotatable upset shafts
WO1988004578A1 (en) * 1986-12-16 1988-06-30 Ab Sandarne Industrimaskiner Disintegrating apparatus
DE9305837U1 (en) * 1993-04-20 1993-08-19 Doppstadt, Werner, 42555 Velbert Shredding machine
DE9312163U1 (en) * 1993-08-14 1993-10-21 Alpirsbacher Maschinenbau GmbH & Co.KG, 72275 Alpirsbach Device for crushing lumpy waste

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL104570C (en) * 1958-10-09
GB1372776A (en) * 1972-08-25 1974-11-06 Rose Downs & Thompson Ltd Lump breaker
DE9305834U1 (en) * 1993-04-20 1993-06-24 Doppstadt, Werner, 42555 Velbert Drive and control device for a cutting unit for shredding material

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB650200A (en) * 1948-09-29 1951-02-14 Oscar Legg Improvements in and relating to paper shredding machines
US3578780A (en) * 1968-12-30 1971-05-18 Dec Int Apparatus for comminuting materials
FR2127685A5 (en) * 1971-02-23 1972-10-13 Benson Ind Ltd
FR2233470A1 (en) * 1973-06-18 1975-01-10 Testut Aequitas Large scale waste disposal unit - has cooperating blades on rotary cylinder and pivoting door within duct
DE3245199A1 (en) * 1982-12-07 1984-06-07 Strabag Bau-AG, 5000 Köln Device for comminuting consolidated rock mixtures in lump form
EP0182749A2 (en) * 1984-11-16 1986-05-28 Société Industrielle de la Doux S.A. Shredder having two horizontally rotatable upset shafts
WO1988004578A1 (en) * 1986-12-16 1988-06-30 Ab Sandarne Industrimaskiner Disintegrating apparatus
DE9305837U1 (en) * 1993-04-20 1993-08-19 Doppstadt, Werner, 42555 Velbert Shredding machine
DE9312163U1 (en) * 1993-08-14 1993-10-21 Alpirsbacher Maschinenbau GmbH & Co.KG, 72275 Alpirsbach Device for crushing lumpy waste

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011119595A1 (en) 2011-11-29 2013-05-29 Pallmann Maschinenfabrik Gmbh & Co Kg Device for crushing feedstock
EP2599554A2 (en) 2011-11-29 2013-06-05 Pallmann Maschinenfabrik GmbH & Co. KG Device for grinding dispensed products
GR1009215B (en) * 2016-09-15 2018-02-14 Χρηστος Νικολαου Γιαννακοπουλος A crusher having knives-hammers placed on tubes set on the rotary frame of a vat having an ajustable exit funnel thereon
CN110769937A (en) * 2017-06-28 2020-02-07 多普斯塔德特家族控股有限公司 Crushing apparatus
CN112203770A (en) * 2018-05-23 2021-01-08 维米尔制造公司 Chopping machine for crushing bulk material
US11484886B2 (en) 2018-05-23 2022-11-01 Vermeer Manufacturing Company Shredder for comminuting bulk material
US11819856B2 (en) 2018-05-23 2023-11-21 Vermeer Manufacturing Company Shredder for comminuting bulk material
KR102211423B1 (en) * 2020-07-07 2021-02-03 주식회사 파워리텍 Single roll type roll crusher

Also Published As

Publication number Publication date
ATE187100T1 (en) 1999-12-15
JP3024826U (en) 1996-06-07
DE59507306D1 (en) 2000-01-05
EP0687503B1 (en) 1999-12-01
ES2141861T3 (en) 2000-04-01
DE9409707U1 (en) 1994-09-15
PT687503E (en) 2000-05-31
DK0687503T3 (en) 2000-04-03
GR3032561T3 (en) 2000-05-31

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