EP0499682A1 - Bucket for earth-moving machine - Google Patents

Bucket for earth-moving machine Download PDF

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Publication number
EP0499682A1
EP0499682A1 EP91111259A EP91111259A EP0499682A1 EP 0499682 A1 EP0499682 A1 EP 0499682A1 EP 91111259 A EP91111259 A EP 91111259A EP 91111259 A EP91111259 A EP 91111259A EP 0499682 A1 EP0499682 A1 EP 0499682A1
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EP
European Patent Office
Prior art keywords
grate
bucket according
blade
side cheeks
vibration
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
EP91111259A
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German (de)
French (fr)
Other versions
EP0499682B1 (en
Inventor
Helmut Wack
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.)
Caterpillar Vibra Ram GmbH and Co KG
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Wack Helmut
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Publication date
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Publication of EP0499682A1 publication Critical patent/EP0499682A1/en
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Publication of EP0499682B1 publication Critical patent/EP0499682B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/402—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors
    • E02F3/405—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors using vibrating means
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/407—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with ejecting or other unloading device
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S37/00—Excavating
    • Y10S37/904—Vibration means for excavating tool

Definitions

  • the invention relates to a bucket for an exercise machine, e.g. Excavators, wheel loaders or the like according to the preamble of patent claim 1.
  • Buckets of this type are designed as attachments for excavators, wheel loaders or corresponding work equipment and have two steel side cheeks which are arranged essentially parallel to one another at a mutual spacing.
  • a blade base which is also made of steel, extends between the side panels and connects the side panels to one another, so that a vessel-like blade which is open at least on one side is formed.
  • a wedge-shaped receiving bar is arranged on the lower edge of the bucket bottom, which is equipped with teeth, which should facilitate the penetration of the bucket into the ground or the material to be picked up.
  • Buckets of this type are also known as loading buckets.
  • folding buckets which consist of two buckets interacting in the form of jaws, the two buckets basically having the same structure as a loading bucket. It should be noted here that the invention relates to both types of blades.
  • the bucket is attached to the free end of an excavator arm and connected to the excavator hydraulic circuit so that it is pivotable and adjustable relative to the excavator boom and arm.
  • the shovel is usually used to dig trenches and pits, to move and pick up spilled material, as well as to load vehicles with loose material or to transfer material.
  • earthmoving devices such as excavators, wheel loaders or the like are usually used, which are provided with a loading shovel of the type mentioned.
  • the demolition material picked up in this way consists not only of the relatively large fragments still to be crushed, but also of concrete pieces that are already of such a small size that further crushing in the crushing plant is not necessary and may not be possible. If these small-sized concrete pieces are nevertheless fed to the crushing plant, the remaining capacity of the crushing plant for the large fragments to be crushed is reduced. In this way, the performance of the crushing plant, i.e. the amount of shredded material per unit of time is reduced. Material of particularly small grain size is even extremely undesirable in crushing plants, since it leads to increased wear on the crushing tools and also to malfunctions.
  • a rotating drum i.e. a sieve drum.
  • the drum has a closable opening through which the material to be sorted can be received. After the opening has been closed, the drum is set in vibration, whereby the material contained in it is pre-sorted or screened with constant circulation.
  • a rotary drum is not only very complex in terms of construction and therefore expensive, the sorting of the material is also time-consuming and thus cost-intensive. Also, the drum cannot be used for other purposes, for example for loading the "sieve residue".
  • the invention has for its object to develop a shovel for earthmoving equipment such that a quick and good sorting or separation of the material in the shovel is reliably achieved.
  • the blade base consists, at least in sections, of a grate which is mounted on the blade and which can be set in vibration relative to the blade. Due to the grid-like grate, a pre-sorting or screening of the material in the bucket can be achieved. Clogging of the grate by the vibration movements that keep the material in constant motion is effectively avoided. This can good and quick sorting of small fragments to be sorted out and coarse demolition material can be achieved.
  • the shovel according to the invention can also be used without vibrating the grid-like grate, whereby its mode of operation corresponds to that of a conventional loading or folding shovel without or with only a slight sorting effect. In this way, the scoop according to the invention can be used in a variety of ways and can therefore be used inexpensively.
  • the entire blade base is formed by the grid-like grate, a very rapid separation of the material to be sorted out can be achieved, wherein in particular it is avoided that the material in the blade builds up in some areas and the sieving effect is reduced. It is advantageous to store the grid-like grate on the side cheeks, since the side cheeks are rigid and have a relatively high stability, so that the mobility of the grid-like grate is not impaired by its storage.
  • loading and folding buckets have a strip of wedge-shaped cross-section on the receiving edge of the bucket bottom, which is usually still covered with wear-resistant teeth.
  • the grid-like grate is floating, on the one hand a vibration movement is possible, while the grate on the other hand to the overall streak the shovel contributes.
  • Storage using tried and tested vibration dampers, for example vibrating metals, is inexpensive to implement and moreover enables the grate-like grate to be moved with little noise, which is advantageous in terms of conditions at the workplace and in terms of environmental protection.
  • the vibration is also not transmitted to the excavator arm via the attachment points of the bucket. If the grate-like grate is supported on each side cheek by two vibration dampers, tilting of the grate can be largely avoided and a high sorting effect can thus be ensured.
  • a hydraulic motor is used to generate the oscillatory movement, it can be easily connected to the hydraulic device of the earth moving device, e.g. of the excavator, wheel loader or the like. Are connected so that no additional drive unit is necessary.
  • An eccentric gearbox is structurally relatively simple and not susceptible to faults, which is very advantageous given the difficult working conditions that are usually present on construction sites.
  • a vibration-stable and favorable in terms of the sorting effect results from the fact that the hydraulic motor and the transmission is arranged approximately in the middle of the bucket bottom and approximately in the middle between the side cheeks, which is further optimized in that the Hydraulic motor and the transmission is arranged approximately in the middle between the vibration dampers on the side cheeks.
  • a linear vibration movement or the combination of a circular and a linear vibration movement is also possible.
  • the vibration movement can either run essentially parallel to the plane of the side cheeks or perpendicular to it, movement parallel to the plane of the side cheeks having the advantage that the bearing forces, when the grid-like grate is mounted on the side cheeks, in the plane of the side cheeks act, and unfavorable lateral forces can be kept low.
  • the lattice-like grate according to claim 18 consists of crescent-shaped disc segments which are arranged next to one another essentially parallel to the plane of the side cheeks, high stability of the lattice-like grate can be achieved. Even an impact of the back of the blade against, for example, a concrete part to be demolished does not lead to a deformation of the grid-like grate, since the forces are essentially introduced into the disc plane of the crescent-shaped disc segments and can therefore be derived in a simple manner.
  • an earthmoving device in the form of an excavator 10 has a chassis 13 on which the body is rotatably mounted.
  • the structure comprises a driver's cab 11 and a motor 12, which serves both to move the excavator 10 and to move the attachments attached to the excavator.
  • a boom 14 is mounted on the structure, to which in turn the excavator arm 15 is connected.
  • Boom 14 and stick 15 are movable both relative to one another and relative to the excavator structure by means of known hydraulic actuators.
  • a shovel 20 is mounted, which can be pivoted relative to the excavator arm 15 in the plane of the drawing according to FIG. 1 by means of a piston-cylinder unit 16.
  • FIGS. 2 to 4 show an enlarged representation of the blade 20.
  • the blade 20 has two side cheeks 21 which are connected at the top by means of crossbeams 21a and stiffened by means of these and by means of a cutting knife 21b at the bottom are.
  • connecting straps 20a are fastened, by means of which the shovel can be attached to the free end of the excavator arm 15.
  • Teeth 29 are mounted on the cutting knife 21b, which facilitate the penetration of the blade into the material to be picked up.
  • the side walls 21 as well as the crossbeams 21a and the cutting knife form a rigid, rigid frame.
  • a grid-like grate 23 is used, which forms the scoop bottom.
  • the lattice-like grate 23 consists of a plurality of sickle-shaped disc segments 22 which are arranged next to one another essentially parallel to the plane of the side cheeks 21 and are held together at a distance by means of a plurality of cross bars 27 and 28.
  • the cutting knife 21b has a wedge-shaped cross section.
  • the upper edge 21c lying inside the blade is higher than the upper side 22a of the disk segments 22 in this area, so that they are not loaded from the front by the working pressure of the blade when the demolition material is picked up.
  • the grid-like grate 23 is mounted on the side cheeks 21 via vibration dampers 25, two vibration dampers being provided on each side cheek. Such storage of the grid-like grate 23 enables its movement relative to the rigid frame formed by the side cheeks 21 and the cross members 21a and the cutting knife.
  • a hydraulic motor 24 is located on the grid-like grate 23 arranged, which is connected via pressure medium lines 24a to the hydraulic circuit of the excavator, as shown in Figure 1.
  • a gear 26 is interposed, which is designed as an eccentric gear, as shown in particular in Figure 2.
  • the eccentric rotates in the drawing plane according to FIG. 2, whereby the grid-like grate 23 is excited to a circular vibration movement in the drawing plane according to FIG. 2 or in a plane parallel to it.
  • Such a circular vibration movement runs essentially parallel to the plane of the side cheeks 21. This vibration movement keeps the material in the blade 20 in constant motion and effectively sorts it.
  • the vibration frequency should be about 2000 min ⁇ 1, but depending on the type and nature of the material to be sorted, good results can also be achieved with other vibration frequencies.
  • the hydraulic motor 24 and the transmission 26 sit approximately in the middle between the bearings or the vibration dampers 25, via which the grate is connected to the side cheeks 21.
  • the axes of the bearings or of the vibration dampers on the one hand and of the hydraulic motor 25 or of the gear 26 on the other hand are only slightly offset, so that an overall vibration-stable design results.
  • a linear vibration movement can also be provided.
  • the eccentric gear shown is a gear of a different design necessary, which converts the rotary movement of the hydraulic motor into a linear vibration movement.
  • the invention is not limited to a vibration running parallel to the plane of the side walls, but it is also possible to excite the grid-like grate essentially perpendicular to the plane of the side walls, ie in the plane of the drawing in FIGS. 3 and 4.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Revetment (AREA)
  • Soil Working Implements (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

A bucket (20) for earth-moving machines (10), such as excavators, wheeled loaders or the like, has two side cheeks (21) which are connected to one another via a bucket base which is arranged between the side cheeks. At least sections of the bucket base are formed by a grating (23) which is movably mounted on the bucket (20) and can be set in vibration. In this arrangement, the grating (23) is preferably mounted in such a way as to dampen vibrations and is driven by means of a hydraulic motor (24) which is connected to the hydraulic circuit of the excavator (10) or wheeled loader (10). <IMAGE>

Description

Die Erfindung betrifft eine Schaufel für ein Erbewegungsgerät, z.B. Bagger, Radlader oder ähnliches gemäß dem Oberbegriff des Patenanspruchs 1.The invention relates to a bucket for an exercise machine, e.g. Excavators, wheel loaders or the like according to the preamble of patent claim 1.

Derartige Schaufeln sind als Anbaugerät für Bagger, Radlader oder entsprechende Arbeitsgeräte ausgebildet und weisen zwei Seitenwangen aus Stahl auf, die unter gegenseitigem Abstand im wesentlichen parallel zueinander angeordnet sind. Zwischen den Seitenwangen erstreckt sich ein ebenfalls aus Stahl bestehender Schaufelboden, der die Seitenwangen miteinander verbindet, so daß eine zumindest einseitig offene, gefäßartige Schaufel gebildet ist. Üblicherweise ist an der Unterkante des Schaufelbodens eine keilförmige Aufnahmeleiste angeordnet, die mit Zähnen besetzt ist, die das Eindringen der Schaufel in das Erdreich oder das aufzunehmende Gut erleichtern sollen.Buckets of this type are designed as attachments for excavators, wheel loaders or corresponding work equipment and have two steel side cheeks which are arranged essentially parallel to one another at a mutual spacing. A blade base, which is also made of steel, extends between the side panels and connects the side panels to one another, so that a vessel-like blade which is open at least on one side is formed. Usually, a wedge-shaped receiving bar is arranged on the lower edge of the bucket bottom, which is equipped with teeth, which should facilitate the penetration of the bucket into the ground or the material to be picked up.

Die Zähne und gegebenenfalls auch die Leiste sind aus gehärtetem, verschleißfestem Stahl gebildet und werden bei Verschleiß ausgewechselt oder durch Auftragsschweißen ausgebessert. Schaufeln dieser Art werden auch als Ladeschaufeln bezeichnet. Daneben gibt es sogenannte Klappschaufeln, die aus zwei backenförmig zusammenwirkenden Schaufeln bestehen, wobei die beiden Schaufeln grundsätzlich den gleichen Aufbau wie eine Ladeschaufel haben. Hier ist anzumerken, daß sich die Erfindung auf beide Schaufeltypen bezieht.The teeth and possibly also the bar are made of hardened, wear-resistant steel and are replaced when worn or repaired by cladding. Buckets of this type are also known as loading buckets. In addition, there are so-called folding buckets, which consist of two buckets interacting in the form of jaws, the two buckets basically having the same structure as a loading bucket. It should be noted here that the invention relates to both types of blades.

Die Schaufel wird beispielsweise am freien Ende des Stiels eines Baggers angebracht und an den Hydraulikkreislauf des Baggers angeschlossen, so daß sie zusammen mit dem Ausleger und dem Stiel des Baggers schwenkbar sowie relativ zu diesem verstellbar ist. Die Schaufel dient überlicherweise zum Ausheben von Gräben und Gruben, zum Bewegen und Aufnehmen von geschüttetem Material, wie auch zum Beladen von Fahrzeugen mit losem Material oder zum Umlagern von Material.For example, the bucket is attached to the free end of an excavator arm and connected to the excavator hydraulic circuit so that it is pivotable and adjustable relative to the excavator boom and arm. The shovel is usually used to dig trenches and pits, to move and pick up spilled material, as well as to load vehicles with loose material or to transfer material.

In neuerer Zeit werden derartige Schaufeln auch im verstärktem Maße bei der Aufarbeitung von natürlichen oder künstlichen Roh- und Baustoffen, dem sogenannten Recycling, eingesetzt. Beispielhaft soll hier auf die Wiedergewinnung von Betonbaustoffen eingegangen werden. Beim Abtragen oder Abbrechen von Betonbauwerken oder Betonbauteilen entstehen in der Regel relativ große Bruchstücke, die zu groß und zu schwer sind, um sie in einfacher Weise einer Wiederverwertung zuführen zu können. Aus diesem Grunde werden die Beton-Bruchstücke unmittelbar mit dem Abbruchgerät oder in gesonderten Brechanlagen auf eine solche Größe zerkleinert, daß sie in Abhängigkeit von Art und Beschaffenheit des Betons einer geeigneten Wiederverwendung zugeführt werden können.In recent times, such blades have also been used to an increasing extent in the processing of natural or artificial raw and building materials, the so-called recycling. As an example, the recovery of concrete building materials will be discussed here. When removing or demolishing concrete structures or concrete components, relatively large fragments are usually created that are too large and too heavy to be easily recycled. For this reason, the concrete fragments are crushed directly with the demolition device or in separate crushing plants to such a size that, depending on the type and nature of the concrete, they can be recycled appropriately.

Für den Transport und die Verladung oder auch für den Transport des Abbruchs zu der Brechanlage werden üblicherweise Erdbewegungsgeräte, wie Bagger, Radlader oder ähnliches verwendet, die mit einer Ladeschaufel der genannten Art versehen sind. Das auf diese Weise aufgenommene Abbruchmaterial besteht neben den relativ großen, noch zu zerkleinernden Bruchstücken auch aus Betonstücken, die bereits eine derartig geringe Größe aufweisen, daß eine weitere Zerkleinerung in der Brechanlage nicht notwendig ist und gegebenenfalls auch nicht erfolgen kann. Wenn diese Betonstücke geringer Größe trotzdem der Brechanlage zugeführt werden, ist die verbleibende Kapazität der Brechanlage für die großen, zu zerkleinernden Bruchstücke verringert. Auf diese Weise ist die Arbeitsleistung der Brechanlage, d.h. die Menge des zerkleinerten Materials pro Zeiteinheit vermindert. Material besonders kleinerer Korngröße ist in Brechanlagen sogar höchst unerwünscht, da es an den Brechwerkzeugen zu erhöhtem Verschleiß und auch sonst zu Funktionsstörungen führt.For the transport and loading or also for the transport of the demolition to the crushing plant, earthmoving devices such as excavators, wheel loaders or the like are usually used, which are provided with a loading shovel of the type mentioned. The demolition material picked up in this way consists not only of the relatively large fragments still to be crushed, but also of concrete pieces that are already of such a small size that further crushing in the crushing plant is not necessary and may not be possible. If these small-sized concrete pieces are nevertheless fed to the crushing plant, the remaining capacity of the crushing plant for the large fragments to be crushed is reduced. In this way, the performance of the crushing plant, i.e. the amount of shredded material per unit of time is reduced. Material of particularly small grain size is even extremely undesirable in crushing plants, since it leads to increased wear on the crushing tools and also to malfunctions.

Es ist deshalb sinnvoll, für das Abbruchmaterial vor dessen Zuführung in die Brechanlage eine Vorsortierung vorzunehmen. Dies könnte mittels einer bekannten Schaufel erfolgen, die in ihrem Schaufelboden eine oder mehrere Schlitze aufweist, und insbesondere beim Trennen von Feststoffen und Flüssigkeiten eingesetzt wird. Eine derartige Schlitzanordnung ist zwar hinsichtlich der Siebwirkung ausreichend bei der Trennung einer Flüssigkeit von einem festen Material, beispielsweise der Entwässerung von mit der Schaufel aufgenommenen Erdreich beim Ausheben von Gräben oder beim Baggern unter Wasser; es hat sich jedoch gezeigt, daß ein Sortieren von Abbruchmaterial mit einer solchen Schaufel nicht möglich ist, da sich Betonstücke sehr häufig vor den Schlitzen aufstauen oder in diesen verklemmen, so daß die Schlitze ihre Sortierwirkung verlieren. Auf diese Weise wird mehr Kleinmaterial in der Schaufel zurückgehalten, ohne daß die gewünschte Sieb- oder Sortierwirkung eintritt, und gelangen dann unerwünschterweise in die Brechanlage.It is therefore advisable to pre-sort the demolition material before it is fed into the crushing plant. This could be done by means of a known blade, which has one or more slots in its blade base, and is used in particular when separating solids and liquids. Such a slot arrangement is sufficient with regard to the sieving effect when separating a liquid from a solid material, for example the drainage of soil picked up by the shovel when digging trenches or when excavating under water; it has been shown, however, that sorting demolition material with such a shovel is not possible, since pieces of concrete very often accumulate or jam in front of the slots, so that the slots lose their sorting effect. To this In this way, more small material is retained in the scoop without the desired screening or sorting effect occurring, and then undesirably get into the crushing plant.

Um die genannten Nachteile zu überwinden, ist versucht worden, ein Anbaugerät in Form einer Drehtrommel, d.h. einer Siebtrommel, zu verwenden. Die Trommel weist eine verschließbare Öffnung auf, über die das zu sortierende Material aufgenommen werden kann. Nach dem Verschließen der Öffnung wird die Trommel in Vibration versetzt, wodurch das in ihr enthaltene Material unter ständiger Umwälzung vorsortiert bzw. ausgesiebt wird. Eine derartige Drehtrommel ist jedoch nicht nur konstruktiv sehr aufwendig und somit teuer, die Sortierung des Materials ist darüber hinaus zeit- und somit kostenintensiv. Auch läßt sich die Trommel für andere Zwecke, beispielsweise zum Verladen des "Siebrückstandes" nicht verwenden.To overcome the disadvantages mentioned, attempts have been made to implement an attachment in the form of a rotating drum, i.e. a sieve drum. The drum has a closable opening through which the material to be sorted can be received. After the opening has been closed, the drum is set in vibration, whereby the material contained in it is pre-sorted or screened with constant circulation. Such a rotary drum is not only very complex in terms of construction and therefore expensive, the sorting of the material is also time-consuming and thus cost-intensive. Also, the drum cannot be used for other purposes, for example for loading the "sieve residue".

Der Erfindung liegt die Aufgabe zugrunde, eine Schaufel für Erdbewegunsgeräte derart weiterzubilden, daß eine schnelle und gute Sortierung bzw. Trennung des in der Schaufel befindlichen Materials zuverlässig erreicht wird.The invention has for its object to develop a shovel for earthmoving equipment such that a quick and good sorting or separation of the material in the shovel is reliably achieved.

Diese Aufgabe wird erfindungsgemäß durch eine Schaufel mit den Merkmalen des Patentanspruchs 1 gelöst.This object is achieved by a blade with the features of claim 1.

Erfindungsgemäß besteht der Schaufelboden zumindest abschnittsweise aus einem an der Schaufel gelagerten Rost, der relativ zu der Schaufel in Vibration versetzt werden kann. Aufgrund des gitterartigen Rostes kann eine Vorsortierung oder Siebung des in der Schaufel befindlichen Materials erreicht werden. Dabei ist ein Verstopfen des Rostes durch die Vibrationbewegungen, die das Material in ständiger Bewegung hält, wirksam vermieden. Dadurch kann eine gute und schnelle Sortierung von kleinen auszusortierenden Bruchstücken und grobem Abbruchmaterial erreicht werden. Darüber hinaus kann die erfindungsgemäße Schaufel auch verwendet werden, ohne daß der gitterartige Rost in Vibrationen versetzt wird, wodurch sie in ihrer Wirkungsweise einer herkömmlichen Lade- oder Klappschaufel ohne bzw. mit einem nur geringem Sortiereffekt entspricht. Auf diese Weise ist die erfindungsgemäße Schaufel vielseitig einsetzbar und somit kostengünstig verwendbar.According to the invention, the blade base consists, at least in sections, of a grate which is mounted on the blade and which can be set in vibration relative to the blade. Due to the grid-like grate, a pre-sorting or screening of the material in the bucket can be achieved. Clogging of the grate by the vibration movements that keep the material in constant motion is effectively avoided. This can good and quick sorting of small fragments to be sorted out and coarse demolition material can be achieved. In addition, the shovel according to the invention can also be used without vibrating the grid-like grate, whereby its mode of operation corresponds to that of a conventional loading or folding shovel without or with only a slight sorting effect. In this way, the scoop according to the invention can be used in a variety of ways and can therefore be used inexpensively.

Wenn gemäß Anspruch 2 der gesamte Schaufelboden von dem gitterartigen Rost gebildet ist, kann eine sehr schnelle Trennung des auszusortierenden Materials erreicht werden, wobei insbesondere vermieden ist, daß sich das Material in der Schaufel bereichsweise aufstaut und die Siebwirkung herabsetzt. Dabei ist es vorteilhaft, den gitterartigen Rost an den Seitenwangen zu lagern, da die Seitenwangen starr sind und eine relativ hohe Stabilität aufweisen, so daß die Beweglichkeit des gitterartigen Rostes durch seine Lagerung nicht beeinträchtigt wird.If, according to claim 2, the entire blade base is formed by the grid-like grate, a very rapid separation of the material to be sorted out can be achieved, wherein in particular it is avoided that the material in the blade builds up in some areas and the sieving effect is reduced. It is advantageous to store the grid-like grate on the side cheeks, since the side cheeks are rigid and have a relatively high stability, so that the mobility of the grid-like grate is not impaired by its storage.

Lade- und Klappschaufeln weisen, wie bereits angedeutet, an der Aufnahmekante des Schaufelbodens eine Leiste keilförmigen Querschnitts auf, die in der Regel noch mit verschleißfesten Zähnen besetzt ist. Mit den Merkmalen des Anspruchs 3 ist sichergestellt, daß das Material über die keilförmige Leiste nach oben und auf den Rost rutscht, ohne daß die erheblichen Druck- und Schubkräfte beim Aufnehmen des Materials auf den Rost und dessen Lager einwirken.As already indicated, loading and folding buckets have a strip of wedge-shaped cross-section on the receiving edge of the bucket bottom, which is usually still covered with wear-resistant teeth. With the features of claim 3 it is ensured that the material slides over the wedge-shaped bar upwards and onto the grate without the considerable pressure and thrust forces acting on the grate and its bearing when the material is picked up.

Wenn gemäß Anspruch 5 der gitterartige Rost schwimmend gelagert ist, ist einerseits eine Vibrationsbewegung möglich, während der Rost andererseits zur Gesamtstreifigkeit der Schaufel beiträgt. Eine Lagerung über bewährte Schwingungsdämpfer, z.B. Schwingmetalle, ist kostengünstig zu verwirklichen und ermöglicht darüber hinaus eine Bewegung des gitterartigen Rostes unter nur geringer Geräuschentwicklung, was hinsichtlich der Bedingungen am Arbeitsplatz und hinsichtlich des Umweltschutzes vorteilhaft ist. Auch wird die Schwingung nicht über die Anbaupunkte der Schaufel in den Stiel des Baggers übertragen. Wenn der gitterartige Rost an jeder Seitenwange über zwei Schwingungsdämpfer gelagert ist, kann eine Verkantung des Rostes weitestgehend vermieden und somit eine hohe Sortierwirkung gewährleistet werden.If, according to claim 5, the grid-like grate is floating, on the one hand a vibration movement is possible, while the grate on the other hand to the overall streak the shovel contributes. Storage using tried and tested vibration dampers, for example vibrating metals, is inexpensive to implement and moreover enables the grate-like grate to be moved with little noise, which is advantageous in terms of conditions at the workplace and in terms of environmental protection. The vibration is also not transmitted to the excavator arm via the attachment points of the bucket. If the grate-like grate is supported on each side cheek by two vibration dampers, tilting of the grate can be largely avoided and a high sorting effect can thus be ensured.

Wenn gemäß Anspruch 8 zur Erzeugung der Schwingungsbewegung ein Hydraulikmotor verwendet wird, kann dieser in einfacher Weise an die Hydraulikeinrichtung des Erdbewegungsgerätes, z.B. des Baggers, Radladers od. dgl. angeschlossen werden, so daß keine zusätzliche Antriebseinheit notwendig ist.If, according to claim 8, a hydraulic motor is used to generate the oscillatory movement, it can be easily connected to the hydraulic device of the earth moving device, e.g. of the excavator, wheel loader or the like. Are connected so that no additional drive unit is necessary.

Die Anordnung eines Getriebes zwischen dem Hydraulikmotor und dem gitterartigen Rost erlaubt eine Umsetzung der Bewegung des Abtriebsorgans des Hydraulikmotors in eine geeignete Vibrationsbewegung sowohl hinsichtlich des Bewegungsverlaufes als auch der Bewegungsgeschwindigkeit. Ein Exentergetriebe gemäß Anspruch 11 ist dabei konstruktiv relativ einfach sowie störungsunanfällig, was bei den auf Baustellen überlicherweise herrschenden schwierigen Arbeitsbedingungen sehr vorteilhaft ist.The arrangement of a transmission between the hydraulic motor and the grid-like grate allows the movement of the output member of the hydraulic motor to be converted into a suitable vibration movement both with regard to the course of the movement and the speed of movement. An eccentric gearbox is structurally relatively simple and not susceptible to faults, which is very advantageous given the difficult working conditions that are usually present on construction sites.

Eine schwingungsstabile und hinsichtlich des Sortiereffektes günstige Ausführung ergibt sich dadurch, daß der Hydraulikmotor und das Getriebe etwa mittig am Schaufelboden und etwa mittig zwischen den Seitenwangen angeordnet ist, die noch dadurch optimiert wird, daß der Hydraulikmotor und das Getriebe etwa mittig zwischen den Schwingungsdämpfern an den Seitenwangen angeordnet ist.A vibration-stable and favorable in terms of the sorting effect results from the fact that the hydraulic motor and the transmission is arranged approximately in the middle of the bucket bottom and approximately in the middle between the side cheeks, which is further optimized in that the Hydraulic motor and the transmission is arranged approximately in the middle between the vibration dampers on the side cheeks.

Es hat sich gezeigt, daß bei Durchführung einer kreisförmigen Vibrationsbewegung eine sehr gute Sieb- bzw. Sortierwirkung erzielt wird. Jedoch ist in Abhängigkeit von dem zu sortierenden bzw. siebenden Material auch eine lineare Vibrationsbewegung oder die Kombination einer kreisförmigen und einer linearen Vibrationsbewegung möglich. Dabei kann die Vibrationsbewegung entweder im wesentlichen parallel zur Ebene der Seitenwangen oder senkrecht dazu verlaufen, wobei eine Bewegung parallel zur Ebene der Seitenwangen den Vorteil mit sich bringt, daß die Lagerkräfte, wenn der gitterartige Rost an den Seitenwangen gelagert ist, in der Ebene der Seitenwangen wirken, und ungünstige Querkräfte gering gehalten werden können.It has been shown that a very good sieving or sorting effect is achieved when a circular vibration movement is carried out. However, depending on the material to be sorted or screened, a linear vibration movement or the combination of a circular and a linear vibration movement is also possible. The vibration movement can either run essentially parallel to the plane of the side cheeks or perpendicular to it, movement parallel to the plane of the side cheeks having the advantage that the bearing forces, when the grid-like grate is mounted on the side cheeks, in the plane of the side cheeks act, and unfavorable lateral forces can be kept low.

Wenn der gitterartige Rost gemäß Anspruch 18 aus sichelförmigen Scheibensegmenten besteht, die im wesentlichen parallel zur Ebene der Seitenwangen nebeneinander angeordnet sind, kann eine hohe Stabilität des gitterartigen Rostes erreicht werden. Selbst ein Anprall der Rückseite der Schaufel gegen beispielsweise ein abzureißendes Betonteil führt nicht zur einer Verformung des gitterartigen Rostes, da die Kräfte im wesentlichen in der Scheibenebene der sichelförmigen Scheibensegmente in diese eingeleitet werden und somit in einfacher Weise ableitbar sind.If the lattice-like grate according to claim 18 consists of crescent-shaped disc segments which are arranged next to one another essentially parallel to the plane of the side cheeks, high stability of the lattice-like grate can be achieved. Even an impact of the back of the blade against, for example, a concrete part to be demolished does not lead to a deformation of the grid-like grate, since the forces are essentially introduced into the disc plane of the crescent-shaped disc segments and can therefore be derived in a simple manner.

Es hat sich gezeigt, daß eine gute Sortierwirkung sowie eine nur geringe Vibrationsbelastung des Baggers bzw. des Radladers erreicht werden kann, wenn die Vibrationsfrequenz etwa 2000 min⁻¹ und/oder die Vibrationsamplitude 5 bis 10 mm beträgt. In Abhängigkeit von dem zu sortierenden Material sowie der baulichen Ausgestaltung der Schaufel und des Baggers bzw. des Radladers können jedoch auch andere Frequenzen bzw. Amplituden unter Erzielung der erfindungsgemäßen Vorteile angezeigt sein.It has been shown that a good sorting effect and only a low vibration load on the excavator or the wheel loader can be achieved if the vibration frequency is approximately 2000 rpm and / or the vibration amplitude is 5 to 10 mm. Depending on the material to be sorted and the structural design of the bucket and the excavator or the wheel loader, however, can also other frequencies or amplitudes may be indicated while achieving the advantages according to the invention.

Weitere Merkmale und Vorteile der Erfindung werden aus der folgenden ausführlichen Beschreibung eines bevorzugten Ausführungsbeispiels unter Bezugnahme auf die beigefügten Zeichnungen ersichtlich. Es zeigen:

Figur 1
einen Bagger mit einer Schaufel in Seitenansicht,
Figur 2
einen Schnitt II-II der Schaufel gemäß Figur 4,
Figur 3
eine Ansicht der Schaufel in Richtung III gemäß Figur 3 und
Figur 4
eine Ansicht der Schaufel in Richtung IV gemäß Figur 2.
Further features and advantages of the invention will become apparent from the following detailed description of a preferred embodiment with reference to the accompanying drawings. Show it:
Figure 1
an excavator with a shovel in side view,
Figure 2
3 shows a section II-II of the blade according to FIG. 4,
Figure 3
a view of the blade in the direction III of Figure 3 and
Figure 4
3 shows a view of the blade in the direction IV according to FIG. 2.

Gemäß Figur 1 weist ein Erdbewegungsgerät in Form eines Baggers 10 ein Fahrgestell 13 auf, auf dem der Aufbau drehbar gelagert ist. Der Aufbau umfaßt ein Führerhaus 11 sowie einen Motor 12, der sowohl zur Bewegung des Baggers 10 als auch zur Bewegung der am Bagger angebrachten Anbaugeräte dient. An dem Aufbau ist darüber hinaus ein Ausleger 14 montiert, an den wiederum der Baggerstiel 15 angeschlossen ist. Ausleger 14 und Stiel 15 sind sowohl relativ zueinander als auch relativ zum Baggeraufbau mittels bekannter hydraulischer Stellantriebe bewegbar. Am freien Ende des Baggerstiels 15 ist eine Schaufel 20 montiert, die mittels einer Kolben-Zylindereinheit 16 relativ zum Baggerstiel 15 in der Zeichenebene gemäß Figur 1 schwenkbar ist.According to FIG. 1, an earthmoving device in the form of an excavator 10 has a chassis 13 on which the body is rotatably mounted. The structure comprises a driver's cab 11 and a motor 12, which serves both to move the excavator 10 and to move the attachments attached to the excavator. In addition, a boom 14 is mounted on the structure, to which in turn the excavator arm 15 is connected. Boom 14 and stick 15 are movable both relative to one another and relative to the excavator structure by means of known hydraulic actuators. At the free end of the excavator arm 15, a shovel 20 is mounted, which can be pivoted relative to the excavator arm 15 in the plane of the drawing according to FIG. 1 by means of a piston-cylinder unit 16.

Die Figuren 2 bis 4 zeigen eine vergrößerte Darstellung der Schaufel 20. Wie insbesondere Figur 3 zu entnehmen ist, weist die Schaufel 20 zwei Seitenwangen 21 auf, die über Quertraversen 21a an der Oberseite verbunden und über diese sowie über ein Schneidmesser 21b an der Unterseite ausgesteift sind. An den Quertraversen 21a sind Anschlußlaschen 20a befestigt, über die die Schaufel an dem freien Ende des Baggerstiels 15 anbringbar ist. An dem Schneidmesser 21b sind Zähne 29 montiert, die das Eindringen der Schaufel in das aufzunehmende Material erleichtern. Die Seitenwangen 21 sowie die Quertraversen 21a und das Schneidmesser bilden einen starren, verformungssteifen Rahmen.FIGS. 2 to 4 show an enlarged representation of the blade 20. As can be seen in particular from FIG. 3, the blade 20 has two side cheeks 21 which are connected at the top by means of crossbeams 21a and stiffened by means of these and by means of a cutting knife 21b at the bottom are. On the crossbeams 21a, connecting straps 20a are fastened, by means of which the shovel can be attached to the free end of the excavator arm 15. Teeth 29 are mounted on the cutting knife 21b, which facilitate the penetration of the blade into the material to be picked up. The side walls 21 as well as the crossbeams 21a and the cutting knife form a rigid, rigid frame.

In diesem Rahmen ist ein gitterartiger Rost 23 eingesetzt, der den Schaufelboden bildet. Der gitterartige Rost 23 besteht aus einer Vielzahl von sichelförmigen Scheibensegmenten 22, die im wesentlichen parallel zur Ebene der Seitenwangen 21 nebeneinander angeordnet und mittels mehrerer Querholme 27 bzw. 28 auf Abstand zusammengehalten sind. Das Schneidmesser 21b weist, wie Fig. 2 zeigt, einen keilförmigen Querschnitt auf. Die innerhalb der Schaufel liegende Oberkante 21c liegt höher als die Oberseite 22a der Scheibensegmente 22 in diesem Bereich, so daß diese beim Aufnehmen des Abbruchmaterials nicht von vorne durch den Arbeitsdruck der Schaufel belastet werden.In this frame, a grid-like grate 23 is used, which forms the scoop bottom. The lattice-like grate 23 consists of a plurality of sickle-shaped disc segments 22 which are arranged next to one another essentially parallel to the plane of the side cheeks 21 and are held together at a distance by means of a plurality of cross bars 27 and 28. As shown in FIG. 2, the cutting knife 21b has a wedge-shaped cross section. The upper edge 21c lying inside the blade is higher than the upper side 22a of the disk segments 22 in this area, so that they are not loaded from the front by the working pressure of the blade when the demolition material is picked up.

Der gitterartige Rost 23 ist über Schwingungsdämpfer 25 an den Seitenwangen 21 gelagert, wobei an jeder Seitenwange zwei Schwingungsdämpfer vorgesehen sind. Eine derartige Lagerung des gitterartigen Rostes 23 ermöglicht dessen Bewegung relativ zu dem von den Seitenwangen 21 sowie den Quertraversen 21a und dem Schneidmesser gebildeten starren Rahmen.The grid-like grate 23 is mounted on the side cheeks 21 via vibration dampers 25, two vibration dampers being provided on each side cheek. Such storage of the grid-like grate 23 enables its movement relative to the rigid frame formed by the side cheeks 21 and the cross members 21a and the cutting knife.

An dem gitterartigen Rost 23 ist ein Hydraulikmotor 24 angeordnet, der über Druckmittelleitungen 24a an den Hydraulikkreislauf des Baggers angeschlossen ist, wie in Figur 1 dargestellt ist. Zwischen den Hydraulikmotor 24 und den gitterartigen Rost 23 ist ein Getriebe 26 zwischengeschaltet, das als Exzentergetriebe ausgebildet ist, wie insbesondere in Figur 2 dargestellt ist. Wenn der Hydraulikmotor 24 angetrieben wird, dreht der Exzenter in der Zeichenebene gemäß Figur 2, wodurch der gitterartige Rost 23 zu einer kreisförmigen Vibrationsbewegung in der Zeichenebene gemäß Figur 2 bzw. in einer dazu parallelen Ebene erregt wird. Eine derartige kreisförmige Vibrationsbewegung verläuft im wesentlichen parallel zu der Ebene der Seitenwangen 21. Durch diese Vibrationsbewegung wird das in der Schaufel 20 befindliche Material, in ständiger Bewegung gehalten und wirksam sortiert. Dabei hat es sich gezeigt, daß eine Schwingungsamplitude von 5 bis 10 mm zur Erzielung einer guten Sortierwirkung ausreicht. Die Vibrationsfrequenz sollte etwa 2000 min⁻¹ betragen, wobei jedoch in Abhängigkeit von der Art und der Beschaffenheit des zu sortierenden Materials auch mit anderen Vibrationsfrequenzen gute Ergebnisse erzielt werden können.A hydraulic motor 24 is located on the grid-like grate 23 arranged, which is connected via pressure medium lines 24a to the hydraulic circuit of the excavator, as shown in Figure 1. Between the hydraulic motor 24 and the grid-like grate 23, a gear 26 is interposed, which is designed as an eccentric gear, as shown in particular in Figure 2. When the hydraulic motor 24 is driven, the eccentric rotates in the drawing plane according to FIG. 2, whereby the grid-like grate 23 is excited to a circular vibration movement in the drawing plane according to FIG. 2 or in a plane parallel to it. Such a circular vibration movement runs essentially parallel to the plane of the side cheeks 21. This vibration movement keeps the material in the blade 20 in constant motion and effectively sorts it. It has been shown that an oscillation amplitude of 5 to 10 mm is sufficient to achieve a good sorting effect. The vibration frequency should be about 2000 min⁻¹, but depending on the type and nature of the material to be sorted, good results can also be achieved with other vibration frequencies.

Wie insbesondere aus Fig. 4 ersichtlich sitzen der Hydraulikmotor 24 und das Getriebe 26 etwa mittig zwischen den Lagern bzw. den Schwingungsdämpfern 25, über die der Rost an die Seitenwangen 21 angeschlossen ist. Wie weiterhin aus Fig. 1 ersichtlich sind die Achsen der Lager bzw. der Schwingungsdämpfer einerseits und des Hydraulikmotors 25 bzw. des Getriebes 26 andererseits nur geringfügig versetzt, so daß sich eine insgesamt schwingungsstabile Ausführung ergibt.As can be seen in particular from FIG. 4, the hydraulic motor 24 and the transmission 26 sit approximately in the middle between the bearings or the vibration dampers 25, via which the grate is connected to the side cheeks 21. As can further be seen from FIG. 1, the axes of the bearings or of the vibration dampers on the one hand and of the hydraulic motor 25 or of the gear 26 on the other hand are only slightly offset, so that an overall vibration-stable design results.

Statt der rotatorischen Schwingung kann auch eine lineare Vibrationsbewegung vorgesehen sein. Dabei ist jedoch statt des gezeigten Exzentergetriebes ein Getriebe anderer Bauart notwendig, das die Drehbewegung des Hydraulikmotors in eine lineare Vibrationsbewegung umsetzt. Darüber hinaus ist die Erfindung nicht auf eine parallel zur Ebene der Seitenwangen verlaufene Vibration beschränkt, sondern es ist desweiteren möglich, den gitterartigen Rost im wesentlichen senkrecht zur Ebene der Seitenwangen, d.h. in der Zeichenebene der Figuren 3 und 4 zu erregen.Instead of the rotary vibration, a linear vibration movement can also be provided. However, instead of the eccentric gear shown is a gear of a different design necessary, which converts the rotary movement of the hydraulic motor into a linear vibration movement. In addition, the invention is not limited to a vibration running parallel to the plane of the side walls, but it is also possible to excite the grid-like grate essentially perpendicular to the plane of the side walls, ie in the plane of the drawing in FIGS. 3 and 4.

Claims (20)

Schaufel für Erdbewegungsgeräte, z.B. Bagger, Radlader od. dgl., mit zwei Seitenwangen und einem zwischen den Seitenwangen angeordneten und diese miteinander verbindenden Schaufelboden, dadurch gekennzeichnet, daß der Schaufelboden (23) zumindest abschnittsweise von einem gitterartigem Rost (23) gebildet ist, der an der Schaufel (20) gelagert und in Vibration versetzbar ist.Shovel for earthmoving equipment, e.g. excavators, wheel loaders or the like, with two side cheeks and a shovel bottom arranged between the side cheeks and connecting them to one another, characterized in that the shovel bottom (23) is formed at least in sections by a grid-like grate (23) which is mounted on the blade (20) and can be set in vibration. Schaufel nach Anspruch 1, dadurch gekennzeichnet, daß der gesamte Schaufelboden (23) von dem Rost (23) gebildet ist.Blade according to claim 1, characterized in that the entire blade base (23) is formed by the grate (23). Schaufel nach Anspruch 1 oder 2, mit einer deren Aufnahmekante bildenden, an der freien Unterkante des Schaufelbodens angeordneten Leiste, die einen sich in die Schaufel keilförmig erweiternden Querschnitt aufweist, dadurch gekennzeichnet, daß die innere obere Kante der Leiste höher liegt als die Oberseite des Rostes in dem an die Leiste anschließenden Bereich.Blade according to Claim 1 or 2, with a bar forming its receiving edge and arranged on the free lower edge of the blade base, which has a cross-section widening in a wedge shape into the blade characterized in that the inner upper edge of the bar is higher than the top of the grate in the area adjacent to the bar. Schaufel nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Rost (23) an den Seitenwangen (21) gelagert ist.Bucket according to one of claims 1 to 3, characterized in that the grate (23) is mounted on the side cheeks (21). Schaufel nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Rost (23) schwimmend gelagert ist.Bucket according to one of claims 1 to 4, characterized in that the grate (23) is floating. Schaufel nach Anspruch 5, dadurch gekennzeichnet, daß der Rost (23) über Schwingungsdämpfer (25) gelagert ist.Bucket according to claim 5, characterized in that the grate (23) is mounted on vibration dampers (25). Schaufel nach Anspruch 6, dadurch gekennzeichnet, daß der Rost (23) an jeder Seitenwange (21) über zwei Schwingungsdämpfer (25) gelagert ist.Bucket according to claim 6, characterized in that the grate (23) is mounted on each side cheek (21) via two vibration dampers (25). Schaufel nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Rost (23) mittels eines Hydraulikmotors (24) angetrieben ist.Bucket according to one of claims 1 to 7, characterized in that the grate (23) is driven by means of a hydraulic motor (24). Schaufel nach Anspruch 8, dadurch gekennzeichnet, daß der Hydraulikmotor (24) an den Hydraulikkreislauf des Erdbewegungsgerätes angeschlossen ist.Bucket according to claim 8, characterized in that the hydraulic motor (24) is connected to the hydraulic circuit of the earth moving device. Schaufel nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß zwischen dem Hydraulikmotor (24) und dem Rost (23) ein Getriebe (26) zwischengeschaltet ist.Bucket according to claim 8 or 9, characterized in that a gear (26) is interposed between the hydraulic motor (24) and the grate (23). Schaufel nach Anspruch 10, dadurch gekennzeichnet, daß das Getriebe als Exentergetriebe (26) ausgebildet ist.Bucket according to claim 10, characterized in that the gear is designed as an eccentric gear (26). Schaufel nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß der Hydraulikmotor (24) und das Getriebe (26) etwa mittig am Schaufelboden und etwa mittig zwischen den Seitenwangen (21) angeordnet ist.Bucket according to one of claims 1 to 11, characterized in that the hydraulic motor (24) and the gear (26) are arranged approximately centrally on the bottom of the blade and approximately centrally between the side cheeks (21). Schaufel nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß der Hydraulikmotor (24) und das Getriebe (26) etwa mittig zwischen den Schwingungsdämpfern an den Seitenwangen (21) angeordnet ist.Bucket according to one of claims 1 to 12, characterized in that the hydraulic motor (24) and the gear (26) are arranged approximately centrally between the vibration dampers on the side cheeks (21). Schaufel nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß der Rost (23) eine im wesentlichen kreisformige Vibrationsbewegung ausführt.Bucket according to one of claims 1 to 13, characterized in that the grate (23) executes an essentially circular vibration movement. Schaufel nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnt, daß der Rost (23) in eine im wesentlichen lineare Vibrationsbewegung ausführt.Bucket according to one of claims 1 to 14, characterized in that the grate (23) executes an essentially linear vibration movement. Schaufel nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß die Virbrationsbewegung im wesentlichen parallel zur Ebene der Seitenwangen (21) verläuft.Bucket according to one of Claims 1 to 15, characterized in that the virbration movement runs essentially parallel to the plane of the side cheeks (21). Schaufel nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß die Rotationsbewegung im wesentlichen senkrecht zur Ebene der Seitenwangen (21) verläuft.Blade according to one of claims 1 to 16, characterized in that the rotational movement is substantially perpendicular to the plane of the side cheeks (21). Schaufel nach einem der Ansprüchen 1 bis 17, dadurch gekennzeichnet, daß der Rost aus sichelförmigen Scheibensegmenten (22) besteht, die im wesentlichen parallel zur Ebene der Seitenwangen (21) nebeneinander angeordnet und mittels zumindest zweier Querträger (27, 28) gehalten sind.Bucket according to one of claims 1 to 17, characterized in that the grate consists of sickle-shaped disc segments (22) which are arranged next to one another essentially parallel to the plane of the side cheeks (21) and are held by means of at least two cross members (27, 28). Schaufel nach einem der Anspüche 1 bis 18, dadurch gekennzeichent, daß die Vibrationsfrequenz etwa 2000 min⁻¹ beträgt.Blade according to one of claims 1 to 18, characterized in that the vibration frequency is approximately 2000 min⁻¹. Schaufel nach einem der Ansprüche 1 bis 19, dadruch gegennzeichnet, daß die Vibrationsamplitude etwa 5 bis 10 mm beträgt.Bucket according to one of Claims 1 to 19, characterized in that the vibration amplitude is approximately 5 to 10 mm.
EP91111259A 1991-02-18 1991-07-06 Bucket for earth-moving machine Expired - Lifetime EP0499682B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4104950 1991-02-18
DE4104950A DE4104950A1 (en) 1991-02-18 1991-02-18 SHOVEL FOR EARTH MOVEMENT DEVICES
DE9202321U DE9202321U1 (en) 1991-02-18 1992-02-22 Shovel for earthmoving equipment

Publications (2)

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EP0499682A1 true EP0499682A1 (en) 1992-08-26
EP0499682B1 EP0499682B1 (en) 1995-04-19

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US (1) US5172498A (en)
EP (1) EP0499682B1 (en)
JP (1) JP2956798B2 (en)
AT (1) ATE121479T1 (en)
CA (1) CA2048551A1 (en)
DE (4) DE4104950A1 (en)
DK (1) DK0499682T3 (en)
ES (1) ES2072486T3 (en)

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US6757992B1 (en) 2003-01-14 2004-07-06 New Holland North America, Inc. Skid steer loader bucket shaker
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JP5362074B2 (en) * 2012-05-29 2013-12-11 株式会社小松製作所 Construction machinery excavation bucket
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US20140137444A1 (en) * 2012-11-16 2014-05-22 Caterpillar Inc. Loader bucket with counterweight
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JP6604624B2 (en) * 2015-05-11 2019-11-13 キャタピラー エス エー アール エル Automatic vibration device for work machines

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
NL9301667A (en) * 1993-09-28 1995-04-18 Gerardus Cornelis Petrus Maria Vibrating tray for dressing materials (rubble, stones etc), which is provided with movable bar-shaped vibratory elements and can be fitted to any (earth moving) machinery
EP1002904A1 (en) * 1997-04-12 2000-05-24 Dappen, Peter Excavator bucket
ITMO20130094A1 (en) * 2013-04-12 2014-10-13 Vibbra S R L BLOSSOM EFFECT BUCKET.

Also Published As

Publication number Publication date
JP2956798B2 (en) 1999-10-04
DE9202321U1 (en) 1993-03-25
ES2072486T3 (en) 1995-07-16
DK0499682T3 (en) 1995-09-04
DE4104950A1 (en) 1992-08-20
US5172498A (en) 1992-12-22
ATE121479T1 (en) 1995-05-15
CA2048551A1 (en) 1992-08-19
EP0499682B1 (en) 1995-04-19
JPH04269217A (en) 1992-09-25
DE59105270D1 (en) 1995-05-24
DE9116810U1 (en) 1993-12-16

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