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EP0003503B1 - Refuse vehicle for transportation of rubbish and other bulk goods - Google Patents

Refuse vehicle for transportation of rubbish and other bulk goods Download PDF

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Publication number
EP0003503B1
EP0003503B1 EP79100086A EP79100086A EP0003503B1 EP 0003503 B1 EP0003503 B1 EP 0003503B1 EP 79100086 A EP79100086 A EP 79100086A EP 79100086 A EP79100086 A EP 79100086A EP 0003503 B1 EP0003503 B1 EP 0003503B1
Authority
EP
European Patent Office
Prior art keywords
worm
rotary drum
truncated cone
guide plate
vehicle according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP79100086A
Other languages
German (de)
French (fr)
Other versions
EP0003503A1 (en
Inventor
Karl Ing. Grad. Fichtl
Rudolf Ing. Grad. Berger
Otto Dürnfelder
Erich Ing. Grad. Pilz
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.)
Trasformazione Societaria faun Umwelttechnik Aktie
Original Assignee
Industrie Werke Karlsruhe Ausburg AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Industrie Werke Karlsruhe Ausburg AG filed Critical Industrie Werke Karlsruhe Ausburg AG
Publication of EP0003503A1 publication Critical patent/EP0003503A1/en
Application granted granted Critical
Publication of EP0003503B1 publication Critical patent/EP0003503B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00—Vehicles particularly adapted for collecting refuse
    • B65F3/14—Vehicles particularly adapted for collecting refuse with devices for charging, distributing or compressing refuse in the interior of the tank of a refuse vehicle
    • B65F3/22—Vehicles particularly adapted for collecting refuse with devices for charging, distributing or compressing refuse in the interior of the tank of a refuse vehicle with screw conveyors, rotary tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3082—Presses specially adapted for particular purposes for baling; Compression boxes therefor with compression means other than rams performing a rectilinear movement

Definitions

  • the invention relates to a vehicle for the transport of garbage or other bulk material, in which the collecting container is designed as a rotating drum and its rear end cover is provided with a hollow cone protruding into the collecting container, blunted and having a pouring opening below, on the outside of which a helical baffle is arranged , which in cooperation with arranged on the inner wall of the rotating drum and with it encompassing drivers (as a removal screw), pushes the material into the collecting container and pushes into the rotating drum in the area between the inner wall of the rotating drum and the inner truncated cone jacket (as a press screw), the drivers are designed as ribs of low overall height and the baffle extends approximately from the highest point of the lateral surface of the truncated cone to over the entire pouring opening and widens radially such that its outer edge is approximately the same or a slightly widening distance to de n ribs holds.
  • Such a vehicle is known from DE-PS 1 144 185 and is shown in FIG. 1 with regard to its essential elements relating to the collecting container.
  • the vehicle not shown, accordingly has a collecting container designed as a rotary drum T, the rear end of which is closed off by an end cover A.
  • This cover A can be folded down relative to the chassis of the vehicle transporting the rotary drum T.
  • the end cover A is further provided with a truncated hollow cone 3 projecting into the collecting container or the rotary drum T and having a pouring opening 5 below, on the outside of which a helical baffle plate 2 is arranged.
  • This guide plate 2 in cooperation with arranged on the inner wall of the rotating drum and rotating with it, drives the material from the pouring opening 5 into the rotating drum T and acts as a clearing screw. In the area between the inner wall of the rotating drum and the inner surface of the truncated cone of the hollow cone 3, it presses the material into the rotating drum T and acts as a press screw.
  • the drivers 1 are designed as ribs of low height.
  • the guide plate 2 extends approximately from the highest point S of the lateral surface of the hollow cone or truncated cone 3 to over the entire pouring opening 5 and widens radially in such a way that its outer edge maintains approximately the same or a slightly widening distance from the ribs or entrainment 1 .
  • the slope of the guide plate 2 extends over approximately 180 ° and in this angular range over the entire depth of the truncated cone, it being extended in the radial direction by a further approximately 90 ° in the form of a circular segment 4 without a slope, in order to do the whole Cover pouring opening 5 and the material conveyed out of the pouring opening 5 by the screw conveying action of the guide plate 2 in cooperation with the driving ribs 1 arranged on the end cover A and on the inside of the rotating drum and pushed into the collecting container or the rotating drum 1 at falling back into the pouring opening 5 prevent.
  • the clearing work is thus accomplished only by the mentioned 180 ° of the screw thread, g of the guide plate 2, the minimum gradient of which is determined or limited by the depth of the emptied bulk space or by the height of the truncated cone 3 itself.
  • the mentioned effect of the circular segment 4 attached in the extension of the guide plate 2 is also important with regard to the compression of the bulk material in the interior of the rotating drum. After the bulk material is prevented from falling back into the pouring opening 5 on the one hand, and on the other hand, new bulk material is continuously fed via the guide plate 2, which acts as a removal screw in this regard, the circular segment 4 serves as a compression screw for compacting the bulk material in the interior of the rotating drum.
  • screens In the area of the truncated cone plane facing the interior of the rotary drum T, screens have been provided as elements which protrude beyond the inner end face of the truncated cone 3 and are intended to act as compression means, since they have inclined surfaces which are inclined towards the inside of the rotary drum (DE- OS 1 914 949). These screens are extending in the transverse direction, roof-shaped in cross section, projecting laterally beyond the end face of the truncated cone 3 and extending towards the center of this end face tapering deflection ribs, the compression effect of which is very low and which are primarily intended to reduce the pressure of the material on the circular ring segment 4.
  • the task on which the invention is based is seen in creating a vehicle for the transport of waste or other bulk material of the type mentioned at the outset, in which not only the circular ring area but also the entire circular cross-sectional area of the rotary drum in the sense of a more uniform compression effect in the entire collection container on the Bulk material is acted on.
  • the measure according to the invention leads to a very considerable increase in the capacity of the rotary drum T, which is in the tonne range. This is due to the fact that a significant compression effect can now also be exerted in the area of the end face of the truncated cone 3 facing the inside of the rotating drum.
  • the lower pitch compared to the guide plate 2 is important, since the axial pressure component exerted by the additional worm is important here, but the radial pressure component is reduced.
  • the number of revolutions of the drum required until the desired compression is achieved is of secondary importance.
  • the screw is a spiral screw with an envelope surface that decreases in diameter towards the end.
  • the screw is designed with a pitch that decreases towards its free end.
  • the term pitch indicates the radial width of the guide or screw surface. The reduction in the pitch also prevents the garbage from seizing up on the rear wall of the screw in relation to the guide surface presented to the garbage load wall.
  • the hollow truncated cone 3 is extended to a full cone 6 of the same surface line.
  • An additional worm 7 is attached to the cone tip 6 placed on the known truncated cone in the extension of the guide plate 2 forming the screw or the attached circular ring segment 4, which has a lower pitch and pitch than the guide plate 2 to the tip of the cone 6 leads.
  • the entire cross-section of the rotary drum T is now swept by this screw 7, so that compaction work is carried out on the bulk material over the entire cross-section.
  • the height of this additional auger and its pitch must be selected so that the stated goal of full area coverage is achieved.
  • a truncated cone 8 can also be placed on the truncated cone 3 according to the exemplary embodiment according to FIG. 3, which cone has a substantially larger cone angle.
  • the additional screw 7 is guided with a lower pitch and a lower pitch to the tip of the attached cone 8, as a result of which the full cross section of the rotary drum T is coated.
  • FIG. 4 A variant of the embodiment according to Fig. 3 is shown in Fig. 4.
  • a cone 9 with a smaller base area and the same cone angle is placed on the truncated cone plane of the truncated cone 3 facing the interior of the rotary drum T.
  • An additional screw 10 is guided around this cone 9, which runs in the direct extension of the guide plate 2 or the circular ring segment 4.
  • the pitch and pitch of this additional screw 10 are smaller than in the guide plate 2 and are dimensioned such that the guide plate 2, circular ring segment 4 and additional screw 10 cover the entire container cross section.
  • FIG. 5 A further modification of the additional compression means provided according to the invention is shown in FIG. 5.
  • the truncated cone 3 is extended by a mandrel 11 placed in the center of the truncated cone plane facing the interior of the rotary drum T.
  • a worm 12 is guided around this mandrel in the extension of the guide plate 2 or the circular ring segment 4, the pitch of which in the region of the truncated cone plane is determined in a first approximation outside by the outside diameter of the end face lying in this plane and inside by the mandrel diameter.
  • the full cross section of the rotary drum T is again coated.
  • FIGS. 6 and 7 show two exemplary embodiments in which the geometrical embodiment of the additional screw corresponds to the conditions already described with reference to FIGS. 4 and 5.
  • the additional screws have their own drive 13, which is arranged centrally in the truncated cone.
  • the direction of rotation of this own drive is such that the additional compacting means rotate counter to the direction of rotation of the rotary drum T, which increases the effect of the additional screw.
  • the respective additional screws 10 'and 12' also have no connection to the guide plate or circular ring segment on the truncated cone. It is pointed out that even in the exemplary embodiments according to FIGS. 2 to 5, the additional screws do not necessarily have to be connected to the guide plate or the circular ring segment or must lie in the direct extension thereof.
  • the conditions are such that, after the rotary drum T has been filled, the additional screw does the skin compaction work.
  • the bulk material is conveyed through the additional screw flights into the center of the rotary drum T, from where the main compression takes place.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Refuse Collection And Transfer (AREA)
  • Refuse-Collection Vehicles (AREA)
  • Processing Of Solid Wastes (AREA)
  • Screw Conveyors (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)

Description

Die Erfindung betrifft ein Fahrzeug zur Beförderung von Müll oder anderem Schüttgut, bei dem der Sammelbehälter als Drehtrommel ausgebildet ist und sein hinterer Abschlußdeckel mit einem in den Sammelbehälter ragenden, abgestumpften, unten eine Einschüttöffnung aufweisenden Hohlkegel versehen ist, auf dessen Mantelaußenseite ein schraubenförmiges Leitblech angeordent ist, das im Zusammenwirken mit an der Drehtrommel-Innenwand angeordneten und mit dieser umfaufenden Mitnehmern (als Ausräumschnecke) das Gut in den Sammelbehälter abdrängt und im Bereich zwischen der Drehtrommel-Innenwand und dem inneren Kegelstumpfmantel (als Preßschnecke) in die Drehtrommel hineindrückt, wobei die Mitnehmer als Rippen niedriger Bauhöhe ausgebildet sind und das Leitblech sich etwa vom höchstgelegenen Punkt der Mantelfläche des Kegelstumpfes bis über die ganze Einschüttöffnung erstreckt und sich radial derart verbreitert, daß sein äußerer Rand annähernd gleichen oder sich schwach erweiternden Abstand zu den Rippen hält.The invention relates to a vehicle for the transport of garbage or other bulk material, in which the collecting container is designed as a rotating drum and its rear end cover is provided with a hollow cone protruding into the collecting container, blunted and having a pouring opening below, on the outside of which a helical baffle is arranged , which in cooperation with arranged on the inner wall of the rotating drum and with it encompassing drivers (as a removal screw), pushes the material into the collecting container and pushes into the rotating drum in the area between the inner wall of the rotating drum and the inner truncated cone jacket (as a press screw), the drivers are designed as ribs of low overall height and the baffle extends approximately from the highest point of the lateral surface of the truncated cone to over the entire pouring opening and widens radially such that its outer edge is approximately the same or a slightly widening distance to de n ribs holds.

Ein derartiges Fahrzeug ist aus der DE-PS 1 144 185 bekannt und hinsichtlich seiner den Sammelbehälter betreffenden, hier wesentlichen Elemente in Fig. 1 dargestellt. Das nicht gezeigte Fahrzeug besitzt demnach einen als Drehtrommel T ausgebildeten Sammelbehälter, dessen hinteres Ende von einem Abschlußdeckel A abgeschlossen ist. Dieser Abschlußdeckel A ist gegenüber dem Fahrgestell des die Drehtrommel T transportierenden Fahrzeugs abklappbar. Der Abschlußdeckel A ist ferner mit einem in den Sammelbehälter bzw. Die Drehtrommel T ragenden, abgestumpften, unten eine Einschüttöffnung 5 aufweisenden Hohlkegel 3 versehen, auf dessen Mantelaußenseite ein schraubenförmiges Leitblech 2 angeordnet ist. Dieses Leitblech 2 drängt im Zusammenwirken mit an der Drehtrommel-Innenwand angeordneten und mit dieser umlaufenden Mitnehmern 1 das Gut aus der Einschüttöffnung 5 in die Drehtrommel T ab und wirkt dabei als Ausräumschnecke. Im Bereich zwischen der Drehtrommel-Innenwand und dem inneren Mantel des Kegelstumpfes des Hohlkegels 3 drückt sie das Gut in die Drehtrommel T hinein und wirkt dabei als Preßschnecke. Die Mitnehmer 1 sind als Rippen niedriger Bauhöhe ausgebildet. Ferner erstreckt sich das Leitblech 2 etwa vom höchstgelegenen Punkt S der Mantelfläche des Hohlkegels bzw. Kegelstumpfes 3 bis über die ganze Einschüttöffnung 5 und verbreitert sich radial derart, daß sein äußerer Rand annähernd gleichen oder sich schwach erweiternden Abstand zu den Rippen bzw. Mitnehmen 1 hält. Die Steigung des Leitblechs 2 erstreckt sich dabei über etwa 180° und in diesem Winkelbereich über die gesamte Tiefe des Kegelstumpfs, wobei es in radialer Richtung um weitere etwa 90° in Form eines Kreissegmentes 4 ohne Steigung verlängert ist, um in der genannten Weise die ganze Einschüttöffnung 5 abzudecken und das durch die Schneckenförderwirkung des Leitblechs 2 im Zusammenwirken mit den am Abschlußdeckel A und an der Drehtrommel-Innenwand angeordneten Mitnehmerrippen 1 aus der Einschüttöffnung 5 herausgeförderte und in den Sammelbehälter bzw. die Drehtrommel 1 abgedrängte Gut am Zurückfallen in die Einschüttöffnung 5 zu hindern.Such a vehicle is known from DE-PS 1 144 185 and is shown in FIG. 1 with regard to its essential elements relating to the collecting container. The vehicle, not shown, accordingly has a collecting container designed as a rotary drum T, the rear end of which is closed off by an end cover A. This cover A can be folded down relative to the chassis of the vehicle transporting the rotary drum T. The end cover A is further provided with a truncated hollow cone 3 projecting into the collecting container or the rotary drum T and having a pouring opening 5 below, on the outside of which a helical baffle plate 2 is arranged. This guide plate 2, in cooperation with arranged on the inner wall of the rotating drum and rotating with it, drives the material from the pouring opening 5 into the rotating drum T and acts as a clearing screw. In the area between the inner wall of the rotating drum and the inner surface of the truncated cone of the hollow cone 3, it presses the material into the rotating drum T and acts as a press screw. The drivers 1 are designed as ribs of low height. Furthermore, the guide plate 2 extends approximately from the highest point S of the lateral surface of the hollow cone or truncated cone 3 to over the entire pouring opening 5 and widens radially in such a way that its outer edge maintains approximately the same or a slightly widening distance from the ribs or entrainment 1 . The slope of the guide plate 2 extends over approximately 180 ° and in this angular range over the entire depth of the truncated cone, it being extended in the radial direction by a further approximately 90 ° in the form of a circular segment 4 without a slope, in order to do the whole Cover pouring opening 5 and the material conveyed out of the pouring opening 5 by the screw conveying action of the guide plate 2 in cooperation with the driving ribs 1 arranged on the end cover A and on the inside of the rotating drum and pushed into the collecting container or the rotating drum 1 at falling back into the pouring opening 5 prevent.

Die Ausräumarbeit wird also nur durch die genannten 180° der Schneckenwinr ,g des Leitbleches 2 bewerkstelligt, wob seine Mindeststeigung durch die Tiefe des beitigten Schüttraumes, bzw. durch die Höhe des Kegelstumpfes 3 selbst, bestimmt bzw. begrenzt ist.The clearing work is thus accomplished only by the mentioned 180 ° of the screw thread, g of the guide plate 2, the minimum gradient of which is determined or limited by the depth of the emptied bulk space or by the height of the truncated cone 3 itself.

Die genannte Wirkung des in der Verlängerung des Leitblechs 2 angebrachten Kreissegments 4 hat auch im Hinblick auf die Verdichtung des Schüttgutes im Drehtrommelinnenraum Bedeutung. Nachdem das Schüttgut einerseits am Zurückfallen in die Einschüttöffnung 5 gehindert wird, andererseits über das-diesbezüglich als Ausräumschnecke wirkende-Leitblech 2 stets neues Schüttgut nachgeführt wird, dient das Kreisringsegment 4 als Preßschnecke zum Verdichten des Schüttgutes im Drehtrommelinnenraum.The mentioned effect of the circular segment 4 attached in the extension of the guide plate 2 is also important with regard to the compression of the bulk material in the interior of the rotating drum. After the bulk material is prevented from falling back into the pouring opening 5 on the one hand, and on the other hand, new bulk material is continuously fed via the guide plate 2, which acts as a removal screw in this regard, the circular segment 4 serves as a compression screw for compacting the bulk material in the interior of the rotating drum.

Bei Zugrundelegung dieser aus der DE-PS 1 144185 bekannten Verhältnisse ist es nun jedoch so, daß die genannte Verdichtungswirkung sich vornehmlich innerhalb einer Kreisringfläche auswirkt, deren Innendurchmesser durch den Stirnflächendurchmesser d der dem Innenraum der Drehtrommel T zugewandten Kegelstumpfebene und deren Außendurchmesser D durch den Durchmesser der Drehtrommel T abzüglich der Höhe der an der Drehtrommel T angebrachten Mitnehmerrippen 1 bestimmt sind. Auf Grund des unterschiedlichen Flächendruckes auf die gesamte Schüttgutfüllung erreicht man somit die größte Verdichtung des Schüttgutes im genannten Kreisringbereich, und zwar unmittelbar vor dem Kreisringsegment 4 des Leitblechs 2. Mit zunehmender Entfernung von dem als Ausräum-und Preßschnecke wirkenden Leitblech 2 nimmt die Verdichtung des Schüttgutes ab.On the basis of these conditions known from DE-PS 1 144185, however, it is now the case that the above-mentioned compression effect primarily affects within an annular surface, the inside diameter of which is due to the end face diameter d of the truncated cone plane facing the interior of the rotary drum T and the outside diameter D of which is the diameter the rotary drum T minus the height of the driving ribs 1 attached to the rotary drum T are determined. Due to the different surface pressure on the entire bulk material filling, the greatest compression of the bulk material in the named annular area is achieved, namely directly in front of the circular ring segment 4 of the guide plate 2. With increasing distance from the guide plate 2, which acts as a clearing and pressing screw, the compression of the bulk material increases from.

Man hat nun bereits im Bereich der dem Innenraum der Drehtrommel T zugewandten Kegelstumpfebene sog. Schirme als Elemente vorgesehen, die über die innere Stirnfläche des Kegelstumpfes 3 hinausragen und als Verdichtungsmittel wirken sollen, da sie Schrägflächen besitzen, die zum Drehtrommelinneren hin geneigt sind (DE-OS 1 914 949). Diese Schirme sind sich in Querrichtung erstreckende, im Querschnitt dachförmige, seitlich über die Stirnfläche des Kegelstumpfs 3 hinausragende und sich in Richtung auf den Mittelpunkt dieser Stirnfläche verjüngende Ablenkrippen, deren Verdichtungswirkung nur sehr gering ist und die hauptsächlich dazu dienen sollen, den Druck des Gutes auf das Kreisringsegment 4 herabzusetzen.In the area of the truncated cone plane facing the interior of the rotary drum T, screens have been provided as elements which protrude beyond the inner end face of the truncated cone 3 and are intended to act as compression means, since they have inclined surfaces which are inclined towards the inside of the rotary drum (DE- OS 1 914 949). These screens are extending in the transverse direction, roof-shaped in cross section, projecting laterally beyond the end face of the truncated cone 3 and extending towards the center of this end face tapering deflection ribs, the compression effect of which is very low and which are primarily intended to reduce the pressure of the material on the circular ring segment 4.

Die der Erfingund zugrundeliegende Aufgabe wird darin gesehen, ein Fahrzeug zur Beförderung von Müll oder anderem Schüttgut der eingangs genannten Bauart zu schaffen, bei dem nicht nur über die genannte Kreisringfläche sondern über die gesamte Kreisquerschnittsfläche der Drehtrommel im Sinne einer gleichmäßigeren Verdichtungswirkung im gesamten Sammelbehälter auf das Schüttgut eingewirkt wird.The task on which the invention is based is seen in creating a vehicle for the transport of waste or other bulk material of the type mentioned at the outset, in which not only the circular ring area but also the entire circular cross-sectional area of the rotary drum in the sense of a more uniform compression effect in the entire collection container on the Bulk material is acted on.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß von der dem Innenraum der Drehtrommel zugewandten Kegelstumpfebene eine zusätzlich Schnecke in das Drehtrommelinnere ragt, deren Gangsteigung geringer ist als die jenige des Leitblechs, derart, daß das Leitblech und die zusätzliche Schnecke gemeinsam im wesentlichen den gesamten Sammelbehälterquerschnitt überdecken.This object is achieved in that an additional screw protrudes into the inside of the rotating drum from the cone plane facing the interior of the rotating drum, the pitch of which is less than that of the guide plate, such that the guide plate and the additional screw together essentially cover the entire cross-section of the collecting container .

Es hat sich herausgestellt, daß die erfindungsgemäße Maßnahme zu einer ganz erheblichen Steigerung des Fassungsvermögens der Drehtrommel T führt, die im Tonnenbereich liegt. Dies ist darauf zurückzuführen, daß nunmehr auch im Bereich der dem Drehtrommelinneren zugewandten Stirnfläche des Kegelstumpfes 3 eine maßgeblich Verdichtungswirkung ausgeübt werden kann. Die geringere Gangsteigung gegenüber dem Leitblech 2 ist wichting, nachdem es hier vornehmlich auf die von der zusätzlichen Schnecke ausgeübte, axiale Druckkomponente ankommt, die radiale Druckkomponente hingegen verringert wird. Die Anzahl der erforderlichen Trommelumdrehungen bis zu Erzielung der gewünschten Verdichtung ist nämlich zweitrangig.It has been found that the measure according to the invention leads to a very considerable increase in the capacity of the rotary drum T, which is in the tonne range. This is due to the fact that a significant compression effect can now also be exerted in the area of the end face of the truncated cone 3 facing the inside of the rotating drum. The lower pitch compared to the guide plate 2 is important, since the axial pressure component exerted by the additional worm is important here, but the radial pressure component is reduced. The number of revolutions of the drum required until the desired compression is achieved is of secondary importance.

Gemäß einer bevorzugten Ausführungsform der Erfindung ist die Schnecke eine Spiral schnecke mit zum Ende hin sich im Durchmesser verkleinernder Hüllfläche. Hieras ergibt sich eine besonders lange Erstreckung der Leitfläche der Schnecke mit einer besonders wirkungsvollen Darbietung derselben gegenüber der Auflauffläche der anstehenden Mülladungswand, insofern nämlich, als auch die Anfangsbereiche der Leitfläche der zusätzlichen Schnecke, bzw. diejenigen Bereiche derselben, die der dem Innenraum der Drehtrommel D zugewandten Kegelstumpfebene bzw. Stirnfläche benachbart sind, eine Verdichtungswirkung ausüben können und nicht durch die in das Drehtrommelinnere hinein vorgelagerten Bereiche abgedeckt werden. Ohne diese Ausgestaltung würden die der Stirnfläche des Kegelstumpfs benachbarten Bereiche lediglich eine Förderwirkung ausübe können.According to a preferred embodiment of the invention, the screw is a spiral screw with an envelope surface that decreases in diameter towards the end. This results in a particularly long extension of the guiding surface of the screw with a particularly effective presentation of the same in relation to the running surface of the upcoming garbage load wall, to the extent that the initial areas of the guiding surface of the additional screw or those areas thereof that correspond to the interior of the rotary drum D adjacent truncated cone plane or end face are adjacent, can exert a compression effect and are not covered by the areas upstream into the interior of the rotating drum. Without this configuration, the areas adjacent to the end face of the truncated cone would only be able to exert a conveying effect.

Die beschriebene, vorgennante Wirkung läßt sich alternativ oder additiv auch dadurch erreichen, daß die Schnecke mit einer Ganghöhe ausgebildet ist, die zu ihrem freie Ende hin abnimmt. Mit dem Begriff Ganghöhe ist dabei die radiale Breite der Leit- bzw. Schneckenfläche bzeichnet. Durch die Verringerung der Ganghöhe wird im übrigen auch verhindert, daß sich der Müll an der Schneckenrückwandrückwärtig zu der der anstehenden Mülladungswand dargebotenen Leitfläche gelegenfestfrißt.The above-described effect described can alternatively or additively also be achieved in that the screw is designed with a pitch that decreases towards its free end. The term pitch indicates the radial width of the guide or screw surface. The reduction in the pitch also prevents the garbage from seizing up on the rear wall of the screw in relation to the guide surface presented to the garbage load wall.

Die Erfindung und ihre vorteilhaften, weiteren Ausgestaltungen sind im folgenden anhand von in der Zeichnung dargestellten Ausfürungsbeispielen näher erläutert.The invention and its advantageous further refinements are explained in more detail below with reference to exemplary embodiments shown in the drawing.

Es zeigt:

  • Fig. 1 den Stand der Technik.
  • Fig. 2 ein erstes Ausführungsbeispiel der Erfindung.
  • Fig. 3 ein zweites Ausführungsbeispiel der Erfindung.
  • Fig. 4 ein drittes Ausführungsbeispiel der Erfindung.
  • Fig. 5 ein viertes Ausführungsbeispiel der Erfindung.
  • Fig. 6 ein fünftes Ausführungsbeispiel der Erfindung.
  • Fig. 7 ein sechstes Ausführungsbeispiel der Erfindung.
It shows:
  • Fig. 1 shows the prior art.
  • Fig. 2 shows a first embodiment of the invention.
  • Fig. 3 shows a second embodiment of the invention.
  • Fig. 4 shows a third embodiment of the invention.
  • Fig. 5 shows a fourth embodiment of the invention.
  • Fig. 6 shows a fifth embodiment of the invention.
  • Fig. 7 shows a sixth embodiment of the invention.

Der bekannte Aufbau des Drehtrommel-Sammelbehälters T wurde bereits anhand der Fig. 1 beschrieben. Es wird an dieser Stelle darauf hingewiesen, daß die erfindungsgemäßen Ausgestaltungen an diesem bekannten Drehtrommel-Sammelbehälter jederzeit nachrüstbar sind.The known structure of the rotary drum collecting container T has already been described with reference to FIG. 1. It is pointed out at this point that the configurations according to the invention can be retrofitted to this known rotary drum collecting container at any time.

Gemäß dem Ausführungsbeispiel nach Fig. 2 ist der Hohlkegelstumpf 3 zu einem Vollkegel 6 gleicher Mantellinie verlängert. Auf der dem bekannten Kegelstumpf aufgesetzten Kegelspitze 6 ist in der Verlängerung des die Schnecke bildenden Leitbleches 2 bzw. des angesetzten Kreisringsegments 4 eine zusätzliche Schnecke 7 angesetzt, die mit geringerer Gangsteigung und Ganghöhe, als sie das Leitblech 2 aufweist, bis zur Spitze des Kegels 6 führt. Durch diese Konzeption wird nunmehr der gesamte Querschnitt der Drehtrommel T von dieser Schnecke 7 überstrichen, so daß über den ganzen Querschnitt Verdichtungsarbeit am Schüttgut geleistet wird. Die Höhe dieser zusätzlichen Schnecke und ihre Gangsteigung sind so zu wählen, daß das genannte Ziel der vollen Flächenüberstreichung erreicht wird.According to the embodiment of FIG. 2, the hollow truncated cone 3 is extended to a full cone 6 of the same surface line. An additional worm 7 is attached to the cone tip 6 placed on the known truncated cone in the extension of the guide plate 2 forming the screw or the attached circular ring segment 4, which has a lower pitch and pitch than the guide plate 2 to the tip of the cone 6 leads. With this design, the entire cross-section of the rotary drum T is now swept by this screw 7, so that compaction work is carried out on the bulk material over the entire cross-section. The height of this additional auger and its pitch must be selected so that the stated goal of full area coverage is achieved.

Da die Erweiterung des Kegelstumpfes 3 zum Vollkegel das Ladevolumen der Drehtrommel T etwas verringert, kann man auch gemäß dem Ausführungsbeispiel nach Fig. 3 dem Kegelstumpf 3 einen Kegel 8 aufsetzen, der einen wesentlich größeren Kegelwinkel aufweist. Auch bei diesem Ausführungsbeispiel wird die zusätzliche Schnecke 7 mit geringerer Gangsteigung und geringerer Ganghöhe bis zur Spitze des aufgesetzten Kegels 8 geführt, wodurch der volle Querschnitt der Drehtrommel T bestrichen wird.Since the expansion of the truncated cone 3 to the full cone somewhat reduces the loading volume of the rotary drum T, a truncated cone 8 can also be placed on the truncated cone 3 according to the exemplary embodiment according to FIG. 3, which cone has a substantially larger cone angle. In this exemplary embodiment, too, the additional screw 7 is guided with a lower pitch and a lower pitch to the tip of the attached cone 8, as a result of which the full cross section of the rotary drum T is coated.

Eine Variante des Ausführungsbeispiels nach Fig. 3 ist in der Fig. 4 dargestellt. Hierbei ist auf die dem Innenraum der Drehtrommel T zugewandte Kegelstumpfebene des Kegelstumpfes 3 ein Kegel 9 mit kleinerer Grundfläche und gleichem Kegelwinkel aufgesetzt. Um diesen Kegel 9 ist wiederum eine zusätzliche Schnecke 10 geführt, die in der unmittelbaren Verlängerung des Leitblechs 2 bzw. des Kreisringsegments 4 verläuft. Gangsteigung und Ganghöhe dieser zusätzlichen Schnecke 10 sind geringer als bei dem Leitblech 2 und so dimensioniert, daß Leitblech 2, Kreisringsegment 4 und zusätzliche Schnecke 10 den gesamten Behälterquerschnitt überdecken.A variant of the embodiment according to Fig. 3 is shown in Fig. 4. Here, a cone 9 with a smaller base area and the same cone angle is placed on the truncated cone plane of the truncated cone 3 facing the interior of the rotary drum T. An additional screw 10 is guided around this cone 9, which runs in the direct extension of the guide plate 2 or the circular ring segment 4. The pitch and pitch of this additional screw 10 are smaller than in the guide plate 2 and are dimensioned such that the guide plate 2, circular ring segment 4 and additional screw 10 cover the entire container cross section.

Eine weitere Modifikation der erfindungsgemäß vorgesehenen zusätzlichen Verdichtungsmittel ist in Fig. 5 dargestellt. Bei diesem Beispiel wird der Kegelstumpf 3 durch einen im Zentrum der dem Innenraum der Drehtrommel T zugewandten Kegelstumpfebene aufgesetzten Dorn 11 verlängert. Um diesen Dorn ist in der Verlängerung des Leitblechs 2 bzw. des Kreisringsegments 4 eine Schnecke 12 geführt, deren Ganghöhe im Bereich der Kegelstumpfebene in erster Näherung außen durch den Außendurchmesser der in dieser Ebene liegenden Stimfläche und innen durch den Dorndurchmesser bestimmt ist. Dadurch wird wiederum der volle Querschnitt der Drehtrommel T bestrichen.A further modification of the additional compression means provided according to the invention is shown in FIG. 5. In this example, the truncated cone 3 is extended by a mandrel 11 placed in the center of the truncated cone plane facing the interior of the rotary drum T. A worm 12 is guided around this mandrel in the extension of the guide plate 2 or the circular ring segment 4, the pitch of which in the region of the truncated cone plane is determined in a first approximation outside by the outside diameter of the end face lying in this plane and inside by the mandrel diameter. As a result, the full cross section of the rotary drum T is again coated.

In den Fig. 6 und Fig. 7 sind zweit Ausführungsbeispiele dargestellt, bei denen die geometrische Ausführungsform der zusätzlichen Schnecke den bereits anhand der Figuren 4 und 5 beschriebenen Verhältnissen entspricht. Im Unterschied zu diesen Varianten verfügen die zusätzlichen Schnecken jedoch über einen eigenen Antrieb 13, der zentrisch im Kegelstumpf angeordnet ist. In besonderer Ausgestaltung der Erfindung ist dabei die Drehrichtung dieses eigenen Antriebs so, daß die zusätzlichen Verdichtungsmittel sich entgegen der Drehrichtung der Drehtrommel T drehen, wodurch die Wirkung der zusätzlichen Schnecke verstärkt wird.6 and 7 show two exemplary embodiments in which the geometrical embodiment of the additional screw corresponds to the conditions already described with reference to FIGS. 4 and 5. In contrast to these variants, the additional screws have their own drive 13, which is arranged centrally in the truncated cone. In a special embodiment of the invention, the direction of rotation of this own drive is such that the additional compacting means rotate counter to the direction of rotation of the rotary drum T, which increases the effect of the additional screw.

Da es sich bei den beiden letztgenannten Beispielen um eigene Aggregate handelt, haben die jeweiligen zusätzlichen Schnecken 10' bzw. 12' auch keine Verbindung zum Leitblech bzw. Kreisringsegment auf dem Kegelstumpf. Es wird darauf hingewiesen, daß auch bei den Ausführungsbeispielen gemäß den Figuren 2 bis 5 die zusätzlichen Schnecken nicht notwendigerweise Verbindung mit dem Leitblech bzw. dem Kreisringsegment haben bzw. in der unmittelbaren Verlängerung derselben liegen müssen.Since the last two examples are separate units, the respective additional screws 10 'and 12' also have no connection to the guide plate or circular ring segment on the truncated cone. It is pointed out that even in the exemplary embodiments according to FIGS. 2 to 5, the additional screws do not necessarily have to be connected to the guide plate or the circular ring segment or must lie in the direct extension thereof.

Der erfindungsgemäßen Konzeption entsprechend liegen die Verhältnisse so, daß nach der Füllung der Drehtrommel T die zusätzliche Schnecke die Hautpverdichtungsarbeit leistet. Das Schüttgut wird durch die zusätzlichen Schneckengänge in das Zentrum der Drehtrommel T gefördert, von wo aus sodann die hauptsächliche Verdichtung erfolgt.According to the concept of the invention, the conditions are such that, after the rotary drum T has been filled, the additional screw does the skin compaction work. The bulk material is conveyed through the additional screw flights into the center of the rotary drum T, from where the main compression takes place.

Claims (6)

1. A vehicle for conveying garbage (garbage removal truck) or other bulk goods (pourable materials) wherein the collecting bin is formed as a rotary drum (T) the rear cover plate (closure lid) of which is provided with a hollow truncated cone (3) which in turn is projecting into said collecting bin and the lower end of which has an inlet (pour-in) opening (5) while the outer side of its shell or jacket is provided with a helical guide plate (2) which cooperates with catch means or entraining members (1) disposed on the inner wall of said rotary drum and rotating together with the latter so that said guide plate-as a clearaway or removal worm-is pushing off said bulk goods into said collecting bin while in the region between the inner wall of said rotary drum and the inner shell of the truncated cone said baffle plate-as a pressing worm-is pressing said bulk goods into said rotary drum (T), and wherein said catch means or entraining members (1) are formed as ribs having a low overall height and said guide plate (2) extends substantially from the uppermost point (S) of the shell surface area of said truncated cone (3) to said inlet (pour-in) opening and over the whole inlet (pour-in) opening, and wherein said guide plate flares radially in a manner such that its outer edge is spaced apart from said ribs at a distance which is approximately equal or slightly widening, characterized in that from the plane of the truncated cone that is facing the interior of said rotary drum (T) there a supplementary worm (7, 10, 10', 12, 12') having a thread pitch smaller than that of said guide plate (2) is projecting into the interior of said rotary drum in a manner such that said guide plate (2) and said supplementary worm (7, 10, 10', 12, 12') together with each other overlap substantially the entire cross-section of said collecting bin.
2. The vehicle according to claim 1, characterized in that said worm (7, 10, 10', 12, 12') is a helical worm having an envelope surface area decreasing in its diameter towards the end.
3. A vehicle according to claim 1 or 2, characterized in that said worm (12, 12') is formed with a screw thread height decreasing towards its free end.
4. A vehicle according to one of more of claims 1 to 3, characterized in that as a support of said supplementary worm (7) there is provided a cone (8) which as compared with said hollow truncated cone (3) is flattened (Fig. 3).
5. A vehicle according to one or more of claims 1 to 4, characterized in that said supplementary worm (7, 10, 12) is connected to the surface area of said truncated cone in a torsionally-stable manner.
6. A vehicle according to one or more of claims 1 to 4, characterized in that said supplementary worm (10', 12') is adapted to be driven by a drive aggregate of its own against the direction of rotation of said rotary drum (T).
EP79100086A 1978-01-21 1979-01-12 Refuse vehicle for transportation of rubbish and other bulk goods Expired EP0003503B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2802653A DE2802653C3 (en) 1978-01-21 1978-01-21 Vehicle for transporting rubbish or other bulk goods
DE2802653 1978-01-21

Publications (2)

Publication Number Publication Date
EP0003503A1 EP0003503A1 (en) 1979-08-22
EP0003503B1 true EP0003503B1 (en) 1982-01-13

Family

ID=6030079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79100086A Expired EP0003503B1 (en) 1978-01-21 1979-01-12 Refuse vehicle for transportation of rubbish and other bulk goods

Country Status (9)

Country Link
US (1) US4211164A (en)
EP (1) EP0003503B1 (en)
JP (1) JPS6014722B2 (en)
AT (1) AT361854B (en)
AU (1) AU530170B2 (en)
BR (1) BR7900300A (en)
DE (2) DE2802653C3 (en)
ES (1) ES476953A1 (en)
PT (1) PT69102A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3609745A1 (en) * 1986-03-22 1987-10-01 Heinz Bergmann Device for compacting refuse composed of packaging material and easily pressable waste
AT396915B (en) * 1991-07-19 1993-12-27 Pickart Josef Vehicle for transporting refuse or the like
ES2111181T3 (en) * 1992-09-26 1998-03-01 Robin Hamilton COMPACTION METHODS AND DEVICES.
GB9220382D0 (en) * 1992-09-26 1992-11-11 Hamilton Robin Compacting apparatus
AT401041B (en) * 1994-06-22 1996-05-28 Strang Hans Walter Garbage collection vehicle
US5845566A (en) * 1998-04-30 1998-12-08 Lee; Ming-Fong Multi-slot closed type powerful garbage compression structure
CA2597116A1 (en) * 2005-02-06 2006-08-10 Ultrashape Ltd. Non-thermal acoustic tissue modification

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE457521C (en) * 1928-03-17 Daimler Benz Akt Ges Garbage truck with a screw conveyor arranged inside the garbage receptacle
DE618688C (en) * 1931-08-29 1935-09-13 Hilding Linde Drum-like, rotatable receptacle for transporting garbage or the like.
DE1200205B (en) * 1962-01-27 1965-09-02 Haller Gmbh Fahrzeugbau Garbage truck with a garbage bin device upstream of the garbage collection container, consisting of a conveyor device and a press screw
DE1506838A1 (en) * 1964-02-05 1969-11-06 Achille Talenti Device for loading and unloading a rotating container stored on a motor vehicle
DE1914949A1 (en) * 1968-04-11 1969-10-16 Brandyske Strojirny A Slevarny Filling device for garbage truck
GB1272904A (en) * 1969-07-09 1972-05-03 Ferruccio Sartorelli A vehicle for collecting and disposing of garbage
FR2046342A5 (en) * 1970-04-22 1971-03-05 Coq Ets
US3812985A (en) * 1971-08-12 1974-05-28 Norba Ab Compressing feed screw
US3779033A (en) * 1972-04-17 1973-12-18 Whirlpool Co Harvest auger for ice maker
US4041854A (en) * 1974-06-10 1977-08-16 Cox Clyde H Sludge dewatering

Also Published As

Publication number Publication date
DE2802653A1 (en) 1979-07-26
EP0003503A1 (en) 1979-08-22
AT361854B (en) 1981-04-10
US4211164A (en) 1980-07-08
DE2802653C3 (en) 1981-11-05
PT69102A (en) 1979-02-01
ES476953A1 (en) 1979-10-16
DE2802653B2 (en) 1981-02-26
AU530170B2 (en) 1983-07-07
ATA11079A (en) 1980-08-15
DE2961792D1 (en) 1982-02-25
JPS54117169A (en) 1979-09-11
JPS6014722B2 (en) 1985-04-15
AU4345879A (en) 1979-08-02
BR7900300A (en) 1979-08-14

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