EP2846918B1 - Broyeuse - Google Patents

Broyeuse Download PDF

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Publication number
EP2846918B1
EP2846918B1 EP13719885.9A EP13719885A EP2846918B1 EP 2846918 B1 EP2846918 B1 EP 2846918B1 EP 13719885 A EP13719885 A EP 13719885A EP 2846918 B1 EP2846918 B1 EP 2846918B1
Authority
EP
European Patent Office
Prior art keywords
bridge
base body
bearing
disintegrating machine
threaded
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.)
Active
Application number
EP13719885.9A
Other languages
German (de)
English (en)
Other versions
EP2846918A2 (fr
Inventor
Michael Böhlefeld
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.)
Erdmann & Co KG GmbH
Original Assignee
Erdmann & Co KG GmbH
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Filing date
Publication date
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Publication of EP2846918A2 publication Critical patent/EP2846918A2/fr
Application granted granted Critical
Publication of EP2846918B1 publication Critical patent/EP2846918B1/fr
Active legal-status Critical Current
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Classifications

    • 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
    • B02C18/142—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
    • 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
    • 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
    • B02C18/22—Feed or discharge means
    • B02C18/2225—Feed means
    • B02C18/2291—Feed chute arrangements
    • 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
    • B02C18/24—Drives
    • 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
    • B02C2018/162—Shape or inner surface of shredder-housings

Definitions

  • the present invention relates to a comminution machine according to the preamble of claim 1.
  • Shredding machines with at least two cutter shafts are for example from the US 37 510 A. and the JP 2003 251211 A known. They are used, for example, to shred valuable materials, such as jacketed copper cables, tires, etc., in order to feed them into another recycling process, for example.
  • the object of the present invention is to provide an improved comminution machine, in particular to provide a comminution machine that can be easier to maintain.
  • this object is achieved by a comminution machine with the characterizing features of claim 1.
  • At least one bearing receptacle which comprises a base body and a bridge which can be pivoted relative to the base body, means that the knife shafts can be removed or reinstalled quickly, since the bearing holder can be opened quickly by opening the bridge and the knife shafts can be removed or removed accordingly Folding a knife shaft inserted into the bearing holder can be quickly fixed again.
  • At least one knife shaft preferably both knife shafts, are provided at the end with at least one bearing plate, the bearing plate being equipped with a base which, in relation to the axis of rotation of the knife shaft, is at a greater distance from the axis of rotation than the largest Radius of the knife shaft and / or the bearing plate is equipped with an opening for hooking in a crane hook or for connection to a crane and / or the bearing plate is equipped with a connection for the bearing of the knife shaft.
  • This also enables a maintenance-friendly shredding machine to be provided. It is particularly noteworthy here that the bearing plate performs numerous tasks and can therefore be described as multifunctional.
  • the knife shaft By means of the base, the knife shaft can be placed on the floor or a suitable workbench, for example, without the knives of the shaft itself or the floor or the base being affected. Through the opening for hooking in, the knife shaft can be hooked directly onto the bearing plates by crane and lifted out or inserted. A separate attachment, for example using straps, chains or straps, can be omitted.
  • the bearings of the knife shafts are basically held by the bearing mounts of the frame. In addition, the bearings can also be accommodated and fixed in the bearing plates using appropriate connections.
  • the frame comprises at least a first side wall, a second side wall, a first end wall and a second end wall, which preferably form a rectangular frame.
  • the two knife shafts can advantageously be accommodated in a rectangular frame, in particular parallel to the side walls.
  • a first bearing receptacle comprising a base body and a bridge that can be pivoted relative to the base body, in the first The end wall is provided or form the first end wall
  • a second bearing receptacle comprising a base body and a bridge pivotable relative to the base body being provided in the second end wall or forming the end wall, the bridges each having two semicircular cutouts and the base body each having two semicircular cutouts exhibit.
  • the semicircular recesses of the base body and bridge complete in a closed state of the bridge and base body, that is to say in an operating state of the comminution machine, to two receptacles for each bearing of the two knife shafts, i.e. with two bridges and base bodies designed in this way, a total of four receptacles for represent the four bearings of the two knife shafts in the shredding device.
  • the knife shaft can also be stored with more bearings.
  • the description here assumes a standard bearing with two bearings per knife shaft. Insofar as the combination of base body and bridge complete in a closed state to form a wall, this can be used completely as a front wall.
  • more than two semicircular cutouts can be provided per base body or bridge, so that correspondingly more cutter shafts can be accommodated in the respective bearing receptacle, or comminution machines with more than two cutter shafts can thereby also be realized.
  • the comminution machine comprises a funnel for supplying valuable materials to the knife shafts, the funnel being attached to at least one bridge, preferably to the bridge of the first bearing holder and to the bridge of the second bearing holder is.
  • the funnel can be screwed to a press-on device that supports the material feed.
  • the funnel insofar as the funnel is attached to the bridge pivotable relative to the base body, preferably to both bridges pivotable relative to the base body, the funnel, possibly including the pressing device, can be pivoted to one side and the knife shafts can be exposed for removal, to a certain extent in one work step , After the repair of the knife shafts or If new or different knife shafts are inserted, the bridges can be folded back, whereby on the one hand the funnel, possibly with the pressing device, is pivoted back into an operating position and on the other hand the bearing holder can be closed again.
  • a backlash-free, but at least reduced backlash bearing is provided between the base body and the bridge. This results in a reduced-play, preferably play-free, mounting of the bridge, which in turn enables a flow of forces directly into the frame.
  • the bearing is preferably maintenance-free.
  • At least one releasable fixing means is provided between the bridge and the base body.
  • several releasable fixing means can also be provided.
  • These bolts, bores and fixation means enable a backlash-free, at least reduced backlash, connection of the base body and bridge, which realizes a frictional connection in the direction of the base body.
  • connection of the bearing plate for the bearing of the knife shaft is equipped as a bearing ring, the bearing ring and the bearing plate optionally being configured in one piece or the bearing ring being connected to the bearing plate.
  • the bearing can be accommodated more advantageously in the bearing receptacle via the bearing ring, in particular we protect the outer ring of the bearing by the bearing ring.
  • a comminution machine in particular rotor shears or rotor shredders, essentially comprises a drive device 1, a comminution device 2 and a funnel 3 attached to the comminution device 2, optionally with a pressing device 5.
  • the drive device 1 and the comminution device 2 are preferably mounted on a frame 4.
  • the drive device essentially comprises a first drive means 11 and a second drive means 12.
  • the drive means are of essentially identical construction, so that only one drive means will be described in more detail below.
  • the drive means can comprise, for example, an electric motor 13 with a transmission 14 connected downstream.
  • a power of more than 30 kW per drive means is preferably provided.
  • each drive means has 95 kW.
  • the drive device in particular the drive means, is preferably mounted on the frame 4 by means of spring and / or damper elements 15.
  • the spring and / or damper element can be, for example, a rubber spring.
  • the comminution device 2 essentially comprises a first knife shaft 21, a second knife shaft 22, a frame 23, a number of scrapers 24, bearings 25 for the knife shafts and bearing receptacles for the knife shafts or for the bearings 25 of the knife shafts 21, 22.
  • the knife shafts 21, 22 can, depending on the embodiment of the comminution machine as rotor shears or rotor shredders, be designed accordingly as shear shafts or shredder shafts.
  • Both scissor shafts 21, 22 together are also called a cutting shaft set. Both tearing shafts are also referred to as the tearing shaft set.
  • the frame 23 essentially has a first side wall 27, a second side wall 28, a first end wall 29 and a second end wall 30.
  • the side walls 27, 28 and the end walls 28, 29 form a rectangular frame in plan view.
  • Strippers 24 are attached along the frame, in particular the side walls 27, 28 of the frame, which protrude perpendicularly from the side walls 27, 28 into the frame 23.
  • the individual wipers 24 of a side wall have a distance between them in the longitudinal direction, so that spacing spaces 31 arise between the wipers 24.
  • a knife shaft 21, 22 essentially has a shaft 70, a number of knife disks 33 and a number of spacer bushes 32.
  • the knife disks 33 are essentially designed as elevations with respect to the shaft which run around the shaft and which are provided with draw-in hooks on the circumference. In other words, wider discs similar to circular saw blades are mounted on the shaft at axial intervals. Spacers 32 are provided between the cutter disks 33.
  • the knife shaft 21, 22 has an axis of rotation 34. Relative to the axis of rotation 34, the cutter disks 33 have a larger radius than the shaft 70 or the spacer bushes 32.
  • the knife shaft 21, 22 can be designed in one piece, that is to say from one piece, but also in several parts.
  • At least two knife shafts that is to say a first knife shaft 21 and a second knife shaft 22, are rotatably received in the comminution machine, in particular in the frame 23.
  • the knife shafts 21, 22 or the axes of rotation 34 of the knife shafts run parallel to the side walls 27, 28 of the frame.
  • the first knife shaft 21 faces the first side wall 27 and the knife disks 33 of the first knife shaft 21 run through the spacing spaces 31 of the wipers 24 of the first side wall 27.
  • the second knife shaft 22 faces the second side wall 28 and the knife disks 33 of the second knife shaft 22 run through the spacing spaces 31 of the wipers 24 of the second side wall 28.
  • the cutter disks 33 of the first cutter shaft 21 run through the spacing spaces of the second cutter shaft 22 and the cutter disks 33 of the second cutter shaft 22 through the spacing spaces of the first cutter shaft 21.
  • An embodiment of the shredding machine as a rotor shear is distinguished in comparison to the embodiment as a rotor shredder with regard to the knife shafts or the knife disks in particular in that the knife disks converge closer or at a greater distance, which results in different shredding mechanisms.
  • the valuable materials are essentially torn and less severed, as is the case with the rotor shears, in which the knife disks tend to converge at a smaller distance from one another. Due to the process, the throughput is usually higher with the rotor breaker version than with the rotor shear version.
  • the funnel 3 In a normal use position or operating state, the funnel 3 is attached above the comminution device 2. The funnel 3 can also be pivoted into a maintenance position or maintenance condition. This will be discussed further below.
  • the function of the shredding machine is as follows.
  • the first cutter shaft 21 is set in rotation by the first drive means 11 and the second cutter shaft 22 is set in rotation by the second drive means 12.
  • the first drive means 11 is preferably mounted on one side of the frame 23 and the second drive means 12 on the other side of the frame 23.
  • the direction of rotation of the two cutter shafts 21, 22 is preferably controlled towards the center of the machine.
  • the comminution device in particular between the knife shafts 21, 22 or the wipers 24, comminutes the valuable materials and partially breaks them down into their constituent parts.
  • the comminuted materials fall out of the comminution device 2, for example into a collecting container (not shown), which is set up under the comminution device, which is mounted on the frame 4.
  • the shredding machine proposed here is characterized in particular by particularly advantageous properties.
  • the reinforcing ribs 35 preferably run diagonally, in particular from one corner to the opposite corner.
  • the reinforcing ribs 35 are preferably elongate and flat profiles which are in particular perpendicular to the surface of the side wall.
  • the reinforcing ribs can be designed in one piece with the side wall, but also as separate elements. In the design as separate elements, the reinforcing ribs are fixed in the corners at the ends. In a top view an X-shaped shape of the reinforcing ribs preferably results on the side wall.
  • the walls of the funnel 3 can also be equipped with such reinforcing ribs 35.
  • the reinforcing ribs 35 make it easier to build with the same or even higher stability of the comminution machine, for example the side wall 27, 28 can be made thinner or made of a different material than the one for an expected load without reinforcing ribs.
  • the proposed shredding machine has some advantageous and inventive technical facilities.
  • connection of the drive device, in particular of the drive means 11, 12 to the cutter shafts 21, 22 is to be mentioned here, which is preferably carried out by means of a quick-change coupling.
  • the connection between the first drive means and the first knife shaft is described below.
  • the connection of the second drive means to the second knife shaft is identical.
  • the quick-change coupling essentially comprises a first flange 16 and a second flange 26.
  • the first flange is connected to the respective drive means 11, 12 and the second flange 26 is connected to the associated knife shaft 21, 22.
  • Both the first flange 16 and the second flange 26 each have only three bores 36.
  • the bores 36 of the first flange 16 and the second flange 26 are aligned, so that screws 72 can be inserted through them.
  • the screws are fixed with nuts.
  • the driver 61 fastened to the one flange is received in a recess 61a of the other flange, which is respectively introduced in the flange in the radial direction.
  • the driver 61 does not have to be dismantled when changing the shaft.
  • the quick-change coupling with only one permanently mounted driver 61 facilitates shaft removal by loosening only three screws 72 per coupling.
  • the bearing receptacles for the cutter shafts should be mentioned in connection with advantageous maintenance.
  • the bearing receptacles are provided in the end walls 29, 30 or the bearing receptacles are formed by the end walls. Since the bearing receptacles are essentially identical, reference is essentially made to a bearing receptacle below.
  • the knife shafts 21, 22 are generally mounted in the frame 23 by means of roller bearings, for example by means of ball or roller bearings. However, other types of bearings, for example plain bearings, are also possible.
  • the bearings 25 are located at the ends of the knife shafts 21, 22. If the bearing 25 has an outer ring and an inner ring, the inner ring is connected to the knife shaft and the outer ring, possibly with the interposition of a further bearing ring 71, by means of the bearing holder with the frame 23.
  • the bearing receptacle essentially comprises a base body 37 and a bridge 38, as well as in particular a backlash-free or at least backlash-reduced bearing 39 and releasable fixing means. Since two bearing receptacles are preferably provided on both sides of the frame, the further basic body or bridge, which is identical in construction, is to be designated with the reference symbols 37a and 38a. For the sake of clarity, however, reference is only made to a combination of base body 37 and bridge 38.
  • the base body 37 is essentially U-shaped in a side view and accordingly has a long side 40, a first leg 41 and a second leg 42.
  • the base body 37 can also be L-shaped or have completely different shapes.
  • the base body is preferably elongated.
  • the base body 37 has in its longitudinal side 40 a first semicircular cutout 46 and a second semicircular cutout 46a.
  • the base body 37 preferably has two bores 43 in its second leg 42, which run parallel to the longitudinal side 40 of the base body.
  • the base body preferably has two brackets 44 with threaded rods pivotally received therein.
  • the base body 37 also preferably has two threaded bores 45 in its long side 40, which are introduced perpendicular to the long side.
  • the bridge 38 is essentially L-shaped in a side view and has a long side 47 and a leg 48. Other shapes are also conceivable here.
  • the bridge is preferably elongated.
  • the bridge 38 preferably has a first semicircular recess 49 and a second semicircular recess 49a in its long side 47.
  • the long side 47 of the bridge 38 has two threaded bores 50 on its end wall, which run essentially parallel to the long side 47 of the bridge 38.
  • the bridge 38 also preferably has two receptacles 51 into which the threaded rods 44 of the brackets on the base body can be pivoted.
  • the bridge 38 preferably has two threaded bores 52 in its long side 47, which are drilled perpendicular to the long side 47.
  • the bridge 38 is pivotally connected to the base body 37 via the clearance-free / clearance-reduced bearing 39.
  • the bearing 39 is preferably installed in the first leg 41 of the base body 37 and the leg 48 of the bridge 38.
  • the bearing 39 is preferably installed in such a way that the pivot axis of the bearing runs perpendicular to the longitudinal axes of the base body 37 and the bridge 38. As far as base body 37 and bridge 38 span an imaginary plane, the axis of rotation of the bearing is preferably perpendicular to this plane.
  • the clearance-reduced, preferably clearance-free, bearing 39 is distinguished in particular by the following features.
  • the bearing 39 is made of a composite material. This composite material is extremely hard and yet resistant to impulse forces. This results in a reduced-play, preferably play-free, mounting of the bridge 38, which in turn enables a flow of forces directly into the frame.
  • the bearing 39 is preferably maintenance-free.
  • the bearing clearance is preferably 0.02 mm or less.
  • bearing receptacles are provided on both sides of the frame 23; the end walls of the frame are preferably formed at least in sections from the bearing receptacles, in particular from the bridge and the base body.
  • the bridge 38 and the base body 37 in a collapsed state have approximately the shape of a rectangular wall. In this respect, it is essentially irrelevant which shape the bridge and base body have in detail, as long as they can be joined together to form a suitable end wall or a part thereof in an assembled state.
  • the funnel 3 is mounted on at least one bridge 38 or 38a, preferably on the bridges 38 and 38a.
  • the hopper 3 and the optionally fitted pressing device 5 can be pivoted to the side and the knife shafts 21, 22 can be exposed for removal in a single operation.
  • the bridges 38, 38a can be folded back, whereby on the one hand the funnel and the optionally installed pressing device 5 can be pivoted back into an operating position and on the other hand the bearing holder can be closed again.
  • the scraper 24 preferably has only one threaded bore 59 and a hook 60 for attachment to the respective side wall 27, 28.
  • the threaded bore 59 is preferably aligned in the longitudinal direction of the wiper 24 and provided at one end of the wiper.
  • the hook 60 is attached in the area of the other end of the scraper 24.
  • a bar 62 with a number of bores 63 through which screws 65 can be screwed in accordingly.
  • a counterpart to the hooks 60 of the wipers 24 is attached along the lower region of the side wall 27, 28.
  • the scraper 24 can advantageously be loosened with only one screw.
  • a further variant of fastening the scraper 24 is also conceivable, for example by means of two screws, one from above and one from the side.
  • the bearing plate 53 is preferably approximately rectangular, preferably rectangular.
  • the bearing plate preferably has a shaft bushing 56, for example a circular recess, from which a section of the bearing plate extends in one direction and the other section in the other direction.
  • the shaft bushing can also be covered with a cover if the shaft is passed through, for example, only very briefly.
  • Two bearing plates 53 are preferably installed per knife shaft, in particular in each case at the end of the knife shaft. In relation to the longitudinal axis or axis of rotation of the knife shaft, the sections of the bearing plate each extend radially from the longitudinal axis or axis of rotation of the knife shaft.
  • the bearing plate 53 can preferably perform several functions, in particular four functions.
  • the bearing plate can act as a connecting element between the base body 37 and the bridge 38.
  • the bearing plate is equipped with connecting means, in particular bores, preferably bolt bushings 54, 55, for releasable connection both to the bridge and to the base body.
  • the bearing plate can act as a stand for the knife shaft 21, 22 connected to it, if it is placed on the floor, for example after removal or storage.
  • the bearing plate 53 can have at least one pedestal 57 which, in relation to the axis of rotation 34 of the knife shaft 21, 22, is preferably at a greater distance from the axis of rotation than the largest radius of the knife shaft when mounted on the knife shaft.
  • the edge of the bearing plate 53 protrudes beyond the largest radius of the knife shaft 21 or 22 in the assembled state.
  • Such a bearing plate 53 is preferably attached to each side of the knife shaft 21, 22, so that the knife shaft, when it is placed on the floor, can stand on the feet 57 of the bearing plates 53 and the scissors of the knife disks do not have to rest on the floor. This protects the teeth of the cutter discs.
  • the bearing plate 53 can be equipped with an opening 58 for hooking in a crane hook or basically for connection to a crane.
  • the bearing plate 53 can also act as a bearing connection of the shaft bearing.
  • the bearing plate can have a connection for the bearing 25, in particular the outer ring of the bearing 25.
  • the connection can be configured, for example, as a bearing ring 71.
  • the bearing ring 71 and the bearing plate 53 can be designed in one piece, but the bearing ring can also be designed as a separate part and in particular connected to the bearing plate.
  • the connection, in particular the bearing ring 71 is for receiving the bearing 25, in particular the outer ring of the bearing 25.
  • the bearings 25 of the knife shaft are accommodated in the bearing receptacle via the bearing ring 71, that is to say between the bridge 38 and the base body 37.
  • the bearing plate 53 can thus preferably have several, in particular four, functions and can therefore be referred to as multifunctional. Firstly, a bearing shell function, secondly as a stiffening element and connecting element between the bridge and the base body, the bearing plate thus being able to be part of the frame. Third, as a storage frame with knife disc protection. Fourth, as a lifting device hole / holder for transport and shaft support.
  • the knife shafts 21, 22 are accommodated in the frame 23 or by means of bearings 25 in the corresponding bearing receptacles.
  • the respective semicircular recesses 46a, 46b, 49a, 49b are completed to form a full circle and hold the respective bearing 25 or the outer ring or bearing ring of the respective bearing.
  • the bridge 38 with the base body 37 is fixed or secured against opening by means of the fixing means.
  • the base body 37a and the bridge 38a essentially complete to form a rectangular wall and to a certain extent form the first end wall 29 and the base body 37 and the bridge 38 form the second end wall 30 of the frame.
  • the fixing means can include, for example, the two bores 43 in the second leg 42 of the base body 37, the two threaded bores 50 in the long side 47 or front of the long side of the bridge 38 and two screws 69.
  • the aforementioned holes and the associated Threaded holes are aligned in an operating state and the screws 69 are screwed through the holes 43 into the threaded holes 50.
  • the fixing means can include, for example, the two brackets 44 with the pivotable threaded rods on the base body and the two receptacles 51 on the bridge 38.
  • the threaded rods 44 are folded into the receptacles 51 of the bridge 38 and the brackets are connected to one another by means of nuts, or the brackets can be pulled towards one another by tightening the nuts and the bridge can accordingly be pressed onto the base body.
  • the brackets are designed approximately as two parallel rectangular profiles.
  • the fixing means can include, for example, the two bearing plates 53 with the bores 54, 55 for the threaded bolts, the threaded bores 45, 52 in the bridge and the base body, and the threaded bolts 64.
  • the threaded bolts 64 have a cylindrical section with a smooth surface and a section with a thread in the longitudinal direction.
  • the bores of the bearing plates 54, 55 and the associated threaded bores 45, 52 of the bridge and base body are aligned in an operating state and the threaded bolts 64 are inserted through the aforementioned bores and screwed into the threaded bores.
  • the fixing means can further comprise a first semicircular bore 66 in the bridge and a second semicircular bore 67 in the base body.
  • the semicircular bores are preferably aligned parallel to the knife shafts 21, 22 and, when the bridge is closed, that is to say the operating state of the comminution machine, complete into a circular bore.
  • a safety pin 68 can be inserted into this bore, which can counteract the opening of the bridge.
  • the fixing means are released, in particular the Nuts of the brackets 44, 51, the screws, the threaded bolts 64 and the securing bolts 68.
  • the quick-change couplings 16, 26 are then released. In particular, only three screws 72 per quick-change coupling have to be loosened. As far as the flanges 16, 26 are separated from each other, the respective drive means 11, 12 can be folded back sufficiently far by the suspension by means of the rubber springs 15.
  • the bridges 38 together with the funnel 3 can then be opened.
  • the interior of the shredding machine and in particular the knife shafts 21, 22 are now accessible and can be lifted out of the frame 23 together with bearings 25, since the pivoted-open bridge 38 also releases the bearings 25 of the knife shafts 21, 22.
  • the knife shafts 21, 22 can, for example, be lifted out with a crane and placed on the bearing plates on the floor, for example, by means of the feet 57. Damaged hooks on the cutter discs can be repaired here, for example.
  • the wipers 24 and, in particular, their fastening screws are also accessible in the maintenance state.
  • a wiper 24 can be removed or reinserted by loosening only one screw 65 or two screws 65 in the variant with two screws, which is basically also possible with knife shafts still in use.
  • the knife shafts 21, 22 can be reinserted and the fixing means can be attached again accordingly.
  • the drive means 11, 12, knife shafts 21, 22 and various functional elements are duplicated in the preferred embodiment of the comminution machine described here, and there are also on both sides of the Knife shafts 21, 22 corresponding bearing receptacles and two bearing plates on each knife shaft, that is to say a total of four bearing plates.
  • the description mostly only a single component was described, and the explanations can also be transferred accordingly to the other, identical components. It should also be borne in mind that especially in the Fig. 7 and 9 if necessary, mirrored representations of the bridge or main body are shown.
  • the shredding machine in particular rotor shears, is characterized in particular by the following features: Shredding machine, in particular rotor shears, comprising at least a first shear shaft, a second shear shaft, and a frame for receiving the shear shafts mounted by means of bearings, the frame comprising at least one side wall.
  • Comminution machine in particular rotor shears, comprising at least a first shear shaft, a second shear shaft, and a frame for receiving the shear shafts mounted by means of bearings, a drive device being provided for driving the shear shafts, the drive device having at least one drive means connected to the first shear shaft.
  • Comminution machine in particular rotor shears, comprising at least a first shear shaft, a second shear shaft and a funnel, as well as a frame for receiving the shear shafts supported by bearings, the frame being designed at least in sections as a bearing holder, the bearing holder comprising a base body and a bridge, wherein a detachable bearing plate is attached between the base body and the bridge, the bearing plate as a connecting element between the base body and the bridge can function and / or the bearing plate can act as a stand for the scissor shaft connected to it and / or the bearing plate can be equipped with an opening for hooking in a crane hook or basically for connection to a crane and / or the bearing plate can act as a bearing holder for the shaft bearing.
  • Comminution machine in particular rotor shears, comprising at least a first shear shaft, a second shear shaft and a funnel, as well as a frame for receiving the shear shafts supported by bearings, the frame being designed at least in sections as a bearing holder, the bearing holder comprising a base body and a bridge, wherein the bridge is attached to the base body by means of a bearing, in particular a backlash-free bearing, preferably a tilting pillow block, the funnel being attached to the bridge.
  • a bearing in particular a backlash-free bearing, preferably a tilting pillow block
  • the shredding machine in particular the rotor shears, can be characterized by all or some of the features listed above.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Claims (8)

  1. Broyeuse, notamment une cisaille à lames circulaires ou une déchiqueteuse, comprenant au moins
    - un premier arbre porte-lames (21),
    - un second arbre porte-lames (22),
    - un châssis (23),
    - un dispositif d'entrainement (1) des arbres porte-lames, dans laquelle
    - les arbres porte-lames (21, 22) sont positionnés en rotation au moyen de paliers (25) dans des logements de palier du châssis (1),
    caractérisée en ce que
    - au moins un logement de palier renferme un corps de base (37 ou 37a) et un pont (38 ou 38a) pivotant par rapport au corps de base et
    - au moins un, de préférence les deux arbres porte-lames (21, 22) sont équipés aux extrémités par au moins une plaque d'appui (53), dans laquelle
    - la plaque d'appui (53) est pourvue d'un pied de soutien (57) présentant par rapport à l'axe de rotation (34) de l'arbre porte-lames (21, 22) un écart de l'axe de rotation (34) supérieur au rayon le plus grand de l'arbre porte-lames (21, 22), et/ou
    - la plaque d'appui (53) est munie d'une ouverture (58) destinée à accrocher un crochet de levage ou à être reliée à une grue et/ou
    - la plaque d'appui (53) est munie d'un raccord destiné au palier (25) de l'arbre porte-lames (21, 22).
  2. Broyeuse selon l'une au moins des revendications précédentes, caractérisée en ce que le châssis (23) comprend au moins une première paroi latérale (27), une seconde paroi latérale (28), une première paroi frontale (29) et une seconde paroi frontale (30), qui forment un châssis de préférence rectangulaire.
  3. Broyeuse selon l'une au moins des revendications précédentes, caractérisée en ce qu'un premier logement de palier renfermant un corps de base (37a) et un pont (38a) pivotant par rapport au corps de base est prévu dans la première paroi frontale (29) ou forme la première paroi frontale (29), dans laquelle un second logement de palier renfermant un corps de base (37) et un pont (38) pivotant par rapport au corps de base est prévu dans la seconde paroi frontale (30), dans laquelle les ponts (38, 38a) présentent respectivement deux évidements semi-circulaires (49, 49a) et les corps de base (37, 37a) comportent respectivement deux évidements semi-circulaires (46, 46a).
  4. Broyeuse selon l'une au moins des revendications précédentes, caractérisée en ce que la broyeuse comprend une trémie (3) servant à amener les matériaux jusqu'aux arbres porte-lames (21, 22), dans laquelle la trémie (3) est mise en place sur au moins un pont, de préférence sur le pont (38a) du premier logement de palier et sur le pont (38) du second logement de palier.
  5. Broyeuse selon l'une au moins des revendications précédentes, caractérisée en ce qu'un palier (39) sans jeu, mais au moins à jeu réduit est prévu entre le corps de base (37, 37a) et le pont (38, 38a).
  6. Broyeuse selon l'une au moins des revendications précédentes, caractérisée en ce qu'au moins un moyen de fixation amovible est prévu entre le pont (38, 38a) et le corps de base (37, 37a).
  7. Broyeuse selon l'une au moins des revendications précédentes, caractérisée en ce que le corps de base (37, 37a) est conçu sous une forme en U et présente un côté longitudinal (40), un premier montant (41) et un second montant (42), dans laquelle le pont (38) est conçu sous une forme en L et présente un côté longitudinal (47) et un montant (48), dans laquelle le moyen de fixation comprend :
    - au moins deux alésages (43) dans le second montant (42) du corps de base (37, 37a), deux taraudages (50) sur la face frontale du côté longitudinal (47) du pont (38, 38a) et deux vis (69), dans laquelle les deux alésages (43) s'étendent parallèlement au côté longitudinal (40) du corps de base (37, 37a) et les taraudages (50) évoluent parallèlement au côté longitudinal (47) du pont, dans laquelle les vis (69) sont insérées à l'intérieur des taraudages à travers les alésages dans un état opérationnel de la broyeuse, et/ou
    - au moins une console (44) dotée d'une tige filetée, orientable sur le corps de base (37, 37a) ou sur le pont (38, 38a), et au moins un logement (51) sur le pont (38, 38a) ou sur le corps de base (37, 37a), dans laquelle la tige filetée peut être introduite par pivotement à l'intérieur du logement (51) et peut être fixée au moyen d'un écrou dans un état opérationnel de la broyeuse, et/ou
    - au moins un premier alésage (54) et un second alésage (55) dans la plaque d'appui (53), ainsi qu'un taraudage (45) dans le corps de base (37, 37a) et un taraudage (52) dans le pont (38, 38a), de même que deux boulons filetés (64), dans laquelle les boulons filetés (64) sont vissés à l'intérieur des taraudages (45, 52) à travers les alésages (54, 55) dans un état opérationnel de la broyeuse, et/ou
    - un premier alésage semi-circulaire (66) dans le pont (38, 38a), un second alésage semi-circulaire (67) dans le corps de base (37, 37a), qui se complètent pour former un alésage circulaire dans un état opérationnel de la broyeuse, ainsi qu'une goupille de sûreté (68) enfoncée dans cet alésage de manière amovible.
  8. Broyeuse selon l'une au moins des revendications précédentes, caractérisée en ce que le raccord de la plaque d'appui (53) destiné au palier (25) de l'arbre porte-lames (21, 22) est équipé comme une bague de palier (71), dans laquelle la bague de palier (71) et la plaque d'appui (53) sont réalisées d'un seul tenant ou bien la bague de palier (71) est reliée à la plaque d'appui (53).
EP13719885.9A 2012-05-07 2013-05-03 Broyeuse Active EP2846918B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102012008824 2012-05-07
DE102012022977 2012-11-26
PCT/EP2013/059301 WO2013167497A2 (fr) 2012-05-07 2013-05-03 Broyeuse

Publications (2)

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EP2846918A2 EP2846918A2 (fr) 2015-03-18
EP2846918B1 true EP2846918B1 (fr) 2020-01-22

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EP13719885.9A Active EP2846918B1 (fr) 2012-05-07 2013-05-03 Broyeuse

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US (1) US9815065B2 (fr)
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Also Published As

Publication number Publication date
EP2846918A2 (fr) 2015-03-18
WO2013167497A2 (fr) 2013-11-14
US20150060583A1 (en) 2015-03-05
WO2013167497A3 (fr) 2014-03-13
US9815065B2 (en) 2017-11-14

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