DEVICE FOR DISPLACING MATERIAL

Description

[0001] The invention relates to a device for displacing material, such as mud, comprising a frame, a driven rotor supported by the frame and at least one scoop means connected to the rotor for scooping material in the lower part of its path.

[0002] Such a device is used for instance in dredging brooklets, ditches, canals and the like.

[0003] In the known devices the discharge of mud is a problem.

[0004] In certain cases it is necessary to collect the mud, thereupon load it into trucks by cranes and carry it off to a place of deposit. This is, however, combersome and cannot be realized at all places.

[0005] A known device of the type mentioned in the preamble (see NL-C-78 794) is constructed as a trencher wherein the scoop means consist of scoop knives fixed on a rotating disc which rotates with a high rotational speed, eg 1300 rpm. As a result thereof, the mud is sprayed onto the adjacent land and the mud is spread uniformly over the land thereby forming an almost impenetrable layer. As a consequence, the danger exists that the underlying vegetation is choked and dies off.

[0006] It is an object of the present invention to provide a device for displacing material, such as mud, wherein the above-mentioned problem is solved in a very effective manner.

[0007] For this purpose the device according to the invention has the features of the characterizing part of claim 1.

[0008] In this way the mud dredgings are thrown onto the adjacent land in the form of coherent clots, which is considerably less harmful to the vegetation, whilst furthermore the device can be brought into action at all places.

[0009] The invention will hereafter be elucidated with reference to the drawing, which shows several embodiments of the device according to the invention.

Fig. 1 is a front view of an embodiment of the device according to the invention.

Fig. 2 shows a part of the front view of fig. 1 wherein, however, the device is shown in another position.

Fig. 3 is a front view of a second embodiment of the device according to the invention.

Fig. 4 is a front view corresponding to fig. 3, wherein, however, the device is shown in another position.

[0010] In the several figures corresponding parts are indicated with the same reference numerals.

[0011] The drawing shows two embodiments of a device according to the invention, which are in particular suitable for dredging brooklets, ditches, canals and the like. For this purpose in both embodiments the frame of this device, of which a transverse beam 1 is shown in the drawing, may be coupled to every desired vehicle or vessel. Of course, it is also possible to fixedly mount the device in or to a vehicle or vessel. During the dredging the direction of movement is substantially perpendicular to the plane of the drawing.

[0012] For dredging the soil a barge 2 is mounted to the transverse beam 1 of the frame by means of bolts, the barge related to the direction of movement, being open at the front side and being provided with a rear wall 3 at the rear side, the rear wall preferably having openings therein. When the barge 2 is moved through the upper layer of the soil the mud dredgings 4 will collect in the barge, which are removed from the barge 2 by spoon-like means 5, which will be described more detailed hereinafter. The water eventually present in the mud can thereby drain off backwardly through the openings in the rear wall 3.

[0013] It is, however, also possible to omit the barge 2, so that the spoon-like means 5 can scoop the mud dredgings directly out of the soil.

[0014] A rotor 6 is connected to the transverse beam 1, said rotor may be driven by a driving means, such as an internal combustion or a hydraulic engine (not shown). On the rotor 6 four spoonlike means 5 are provided, the spoon-like means 5 extending radially and being equally spaced in circumferential direction, and each spoon-like means 5 consists of a metal arm 7 with a scoop 8 provided at the end thereof. These scoops 8 are preferably perforated, or may be made of wire netting or such material. Consequently the liquid taken along during a scoping movement can already drain off at least partially prior to throwing away the contents of the respective scoop 8.

[0015] The device according to fig. 1 or 2 comprises a lever 9, which is pivotally adjustable about a pivot shaft, which is co-axially aligned with the axis of rotation of the rotor 6. The position of the lever 9 is adjustable by means of a cylinder-plunger assembly 10, which on one hand is connected to the lever 9 and on the other hand to the transverse beam 1. Further a leaf spring 11 is hingedly mounted on the lever 9, which leaf spring partially extends in extension of the lever 9. Two transverse pins 12 at the end of the lever 9 on either side of the leaf spring 11 serve for supporting the leaf spring 11, when it is loaded. The end of the leaf spring 11 carries an enlarged head 13. Of course it is also possible to provide such a lever mechanism at one or at either side of the rotor 6. For the cooperation with the respective leaf spring 11 of the lever 9 a laterally projecting cam 14 is provided at the respective side of the scoop 8, the cam being adapted to engage the leaf spring 11.

[0016] The spoon-like means 5 can be rotated about their longitudinal axis by means of a cylinder-plunger assembly 15, a lever 16 and a rotation mechanism operatively engaged by the lever 16, so that when the spoon like means are rotated through 180° and the direction of rotation of the rotor 6 is reversed, the device can operate in the reversed sense. The rotation mechanism for the spoon-like means 5 can for instance consist of a pinion wheel provided at the inner end of each arm 7, the pinion wheel being in engagement with a crown wheel, which is rotatable by means of the lever 16.

[0017] Another way to enable a reversed operation is to provide the spoon like means with two scoops facing away from each other, so that in this case it is only necessary to change the direction of rotation of the rotor.

[0018] It is also possible to provide an operation of the device in the reversed sense by rotating the transverse beam together with the rotor 6 fixed thereto through 180° about a vertical axis.

[0019] Instead of using the arm of the spoon like means as a spring means a spring member may engage each spoon like means, of which the arm is pivotally connected to the rotor by means of a pivot shaft extending parallel to the axis of rotation of the rotor. A retaining member may engage each spoon like means in a part of its path. In this embodiment the arm of the spoon like means may be of a rigid construction and the arm is tensioned by its pivoting movement against the spring force of the spring member.

[0020] The device according to the invention works as follows:

[0021] When the barge is moved through the upper layer of the soil the mud dredgings are collected therein. If the rotor 6 with the spoon-like means 5 rotates a scoop 8 is moved through the mud dredgings 4 again and again, said scoop 8 thereby being filled with mud dredgings.

[0022] In a position before its upper point the cam 14 of the scoop 8 comes into engagement with the leaf spring 11 on the lever 9. The rotor 6 thereby normally continues its rotation, so that both the leaf spring 11 and the arm 7 of the spoon like means will be tensioned.

[0023] Consequently the leaf spring 11 and the arm 7 will bend to a certain degree dependent on the stiffness thereof. However, the leaf spring 11 will bend to such an extent, that the cam 14 of the scoop 8 moves along the leaf spring 11 to the end thereof, where the cam 14 temporarily catches in behind the enlarged head 13 of the leaf spring 11. When the leaf spring 11 bends any further, the cam 14 will suddenly release from the enlarged head 13, in consequence whereof the arm 7 forcibly returns to the non-deformed state, in such a way that the mud dredgings 4 in the scoop 8 are thrown away as a coherent clot (dotted in fig. 2).

[0024] The inclination, with which the mud dredgings clots are thrown away, is adjustable by means of an adjustment of the position of the lever 9, consequently the distance along which the dredgings are thrown away can be changed.

[0025] The position of the lever 9 has to be adjusted also, when the direction of the rotor 6 is reversed. In this case the lever can be placed in the position shown in dotted lines in fig. 1.

[0026] As circumstances may require mud dredgings clots may be thrown onto the surrounding terrain, or may be thrown into a collecting container connected to the vehicle or vessel of the device.

[0027] During the dredging operation the barge 2 of the device also serves as a temporary storage of the mud to be removed. For instance when it is impossible to throw the mud dredgings onto the adjacent terrain, e.g. when passing a tree, the rotor 6 may be stopped temporarily, and only the device with the barge 2 may be moved. When it is possible again to throw away the clots of mud dredgings, the driving of the rotor 6 can be started again and the mud dredgings collected in the barge 2 can be scooped out and thrown away.

[0028] As the scoops 8 may be accelerated during a short period so as to throw away the mud dredgings, the rotor 6 does not have to rotate at high revolutions per minute. The speed of revolutions of the rotor 6 is preferably between 5 to 50 rpm. A slowly rotating rotor 6 has the advantage, that there is only a very small chance, that the scoops 8 will be damaged by large and hard objects possibly present in the mud.

[0029] If the scoops 8 scoop the mud directly out of the soil, a further advantage of slowly rotating the rotor 6 is to be seen in that the ground will not be rooted up, and the water scooped together with the mud dredgings have sufficient time to drain of from the scoop 8 before the mud is thrown away.

[0030] Fig. 3 and 4 show a second embodiment, in which the leaf spring 11 of the first embodiment is replaced by an adjustable spring mechanism 17.

[0031] This spring mechanism 17 comprises a sickle-shaped member 18, which is hingedly connected to the lever 9 by means of a horizontal pivot shaft 19. The curved ends 20 of the sickle-shaped member 18 serve as engagement points for the cams 14 of the scoops 8.

[0032] For adjusting and spring supporting the sickle-shaped member 18 an arm 21 mounted hereto is connected to a transverse arm 22 of the lever 9 by means of a cylinder-plunger assembly 23.

[0033] Fig. 4 illustrates the position of the sickle-shaped member 18, in which the cam 14 of the scoop 8 just comes into contact with the sickle-shaped member 18 (on the left during a clockwise rotation of the rotor 6, on the right during a counter-clockwise rotation of the rotor 6). When the arm 7 of the spoon-like means 5 is bent the cylinder-plunger assembly 22 will be compressed, so that the sickle-shaped member 18 will be turned to such an extent, that the cam 14 on the scoop 8 will release from behind the end 20 of the sickle-shaped member 18 and the arm 17 will forcibly spring back to the non-deformed state.

[0034] The invention is not restricted to the embodiments shown in the drawings by way of example, which may be varied in several ways within the scope of the claims.

[0035] E.g. it is possible to use the device in displacing heaps of coals or beets and the like, while the device can be put on a lot of other applications.

Claims

1. Device for displacing material, such as mud, comprising a frame (1), a driven rotor (6) supported by the frame (1) and at least one scoop means (8) connected to the rotor (6) for scooping material in the lower part of its path, characterized in that the at least one scoop means (8) is provided at the free end of an arm (7) extending outwardly from the rotor (6) forming a spoon-like means (5), and being drivably connected thereto, and, for throwing away the material, a mechanism (9 - 14; 17 - 23) being provided with which each scoop means (8) is able to be accelerated in a part of its path.

2. Device according to claim 1, characterized in that the mechanism (9 - 14; 17 - 23) with which the at least one scoop means (8) can be accelerated comprises a straining means, which is adapted to strain the spoon-like means (5) formed by the at least one scoop means (8) and arm (7) during a part of its path and successively releases it.

3. Device according to claim 2, characterized in that the straining means comprises a spring means (11) which can engage the spoon-like means (5).

4. Device according to claim 2, characterized in that the arm (7) of each spoon like means (5) is pivotally connected to the rotor (6) by means of a pivot shaft extending parallel to the axis of rotation of the rotor (6), the straining means comprising a spring member connected to each spoon-like means (5) and a retaining member being adapted to engage each spoon-like means (5) in a part of its path.

5. Device according to claim 1, characterized in that the mechanism with which each spoon like means (5) can be accelerated is hydraulically actuated.

6. Device according to one of the preceding claims, characterized in that the direction of throwing of the scoop means (8) with respect to the direction of movement of the device may be reversed.

7. Device according to claim 6, characterized in that the (each) spoon like means (5) is pivotable about its longitudinal axis, and the rotor (6) may be driven in both directions.

8. Device according to claim 6, characterized in that the spoon-like means (5) is provided with two scoop means (8) facing away from each other, and the rotor (6) may be driven in both directions.

9. Device according to claim 6, characterized in that a part of the frame (1) wich carries the rotor (6) may be mounted such that it can be turned 180° about a vertical axis.

10. Device according to one of the preceding claims, characterized in that its direction of movement substantially coincide with the axis of rotation of the rotor (6).

11. Device according to claim 10, characterized in that the frame (1) can be coupled to a propulsion means, such as a vehicle or vessel.

12. Device according to claim 10 or 11, characterized in that a barge (2) is mounted to the frame (1), the barge (2) is open at the front side being the direction of movement of the device, and the (each) scoop (8) being movable through the barge (2).

13. Device according to claim 12, characterized in that the wall of the barge (2) which is the rear wall (3) which faces the direction of movement of the device, is provided with openings.

14. Device according to one of the preceding claims, characterized in that the (each) scoop means (8) is perforated.

15. Device according to one of the preceding claims, characterized in that the (each) scoop means (8) is made from netting wire or such material.

16. Device according to one of the preceding claims, characterized in that it can be coupled to a collecting container, in which the material thrown away by the scoop means (8) can be received.

17. Device according to one of the preceding claims, characterized in that the number of revolutions per minute of the rotor (6) is 5 - 50.

Ansprüche

1. Vorrichtung zum Verlagern von Material wie Schlamm, mit einem Rahmen (1), mit einem von dem Rahmen (1) gehaltenen angetriebenen Rotor (6) und mit wenigstens einer mit dem Roter (6) verbundenen Schöpfeinrichtung (8) zum Abschöpfen von Material auf dem unteren Teil seiner Bahn, dadurch gekennzeichnet, daß die eine Schöpfeinrichtung (8) an dem freien Ende eines Armes (7) vorgesehen ist, der sich von dem Rotor (6) nach außen erstreckt, wobei eine löffelartige Einrichtung (5) gebildet wird, und der mit ihm in Antriebsverbindung steht, und daß zum Wegschleudern des Materials ein Mechanismus (9 bis 14; 17 bis 23) vorgesehen ist, durch welchen jede Schöpfeinrichtung (8) auf einen Teil ihrer Bahn beschleunigt werden kann.

2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Mechanismus (9 bis 14; 17 bis 23), mit dem die eine Schöpfeinrichtung (8) beschleunigt werden kann, eine Spanneinrichtung aufweist, die für das Spannen der löffelartigen Einrichtung (5), welche von der einen Schöpfeinrichtung (8) und dem (7) gebildet wird, während eines Teils ihrer Bahn geeignet ist und sie danach freigibt.

3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Spanneinrichtung eine Federeinrichtung (11) aufweist, die an der löffelartigen Einrichtung (5) angreifen kann.

4. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Arm (7) einer jeden löffelartigen Einrichtung (5) schwenkbar mit dem Rotor (6) mittels einer Schwenkwelle verbunden ist, die sich parallel zur Drehachse des Rotors (6) erstreckt, wobei die Spanneinrichtung ein mit jeder löffelartigen Einrichtung (5) verbundenes Federelement und ein Halteelement für den Eingriff mit jeder löffelartigen Einrichtung (5) auf einem Teil ihrer Bahn aufweist.

5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Mechanismus, mit welchem jede löffelartige Einrichtung (5) beschleunigt werden kann, hydraulisch betätigt ist.

6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Schleuderrichtung der Schöpfeinrichtung (8) bezüglich der Bewegungsrichtung der Vorrichtung umkehrbar ist.

7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die (jede) löffelartige Einrichrung (5) um ihre Längsachse schwenkbar ist und daß der Rotor (6) in beide Richtungen angetrieben werden kann.

8. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die löffelartige Einrichtung (5) mit zwei Schöpfeinrichtungen (8) versehen ist, die voneinander wegweisen und daß der Rotor (6) in beide Richtungen angetrieben werden kann.

9. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß ein Teil des Rahmens (1), der den Rotor (6) trägt, so montierbar ist, daß er um eine vertikale Achse um 180° gedreht werden kann.

10. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ihre Bewegungsrichtung im wesentlichen mit der Drehachse des Rotors (6) zusammenfällt.

11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß der Rahmen (1) mit einer Vortriebseinrichtung koppelbar ist, beispielsweise mit einem Fahrzeug oder einem Schiff.

12. Vorrichtung nach Anspruch 10 oder 11, dadurch gekennzeichnet, daß an dem Rahmen (1) ein Schleppkahn (2) montiert ist, der an seiner Frontseite, die die Bewegungsrichtung der Vorrichtung ist, offen ist, und daß der (jeder) Schöpfer (8) durch den Schleppkahn (2) bewegbar ist.

13. Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß die Wand des Schleppkahns (2), welche die Rückwand (3) ist, welche der Bewegungsrichtung der Vorrichtung zugewandt ist, mit Öffnungen versehen ist.

14. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die (jede) Schöpfeinrichtung (8) mit Durchbrechungen versehen ist.

15. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die (jede) Schöpfeinrichtung (8) aus einem Drahtnetz oder einem ähnlichen Material hergestellt ist.

16. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie mit einem Sammelbehälter koppelbar ist, in dem das von der Schöpfeinrichtung (8) weggeschleuderte Material aufgenommen werden kann.

17. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Anzahl der Umdrehungen des Rotors (6) pro Minute 5 bis 50 beträgt.

Revendications

1. Dispositif pour déplacer de la matière, telle que de la boue, comprenant un bâti (1), un rotor commandé (6) supporté par le bâti (1) et au moins un moyen de godet (8) relié au rotor (6) pour enlever la matière dans la partie inférieure de son parcours, caractérisé en ce qu'au moins le moyen de godet (8) est prévu à l'extrémité libre d'un bras (7) s'étendant à l'extérieur du rotor (6) en formant un moyen du type cuillère (5) et étant activement relié à ce dernier et, pour rejeter la matière, un mécanisme (9 - 14; 17 - 23) au moyen duquel chaque moyen de godet (8) peut être accéléré dans une partie de son parcours.

2. Dispositif suivant la revendication 1, caractérisé en ce que le mécanisme (9 - 14; 17 - 23) grâce auquel au moins le moyen de godet (8) peut être accéléré comprend un moyen de tension, qui est adapté pour tendre le moyen du type cuillère (5), formé par au moins le moyen de godet (8) et le bras (7), pendant une partie de son parcours et libère successivement celui-ci.

3. Dispositif suivant la revendication 2, caractérisé en ce que le moyen de tension comprend un moyen de ressort (11) qui peut engager le moyen du type cuillère (5).

4. Dispositif suivant la revendication 2, caractérisé en ce que le bras (7) de chaque moyen du type cuillère (5) est relié à pivotement au rotor (6) au moyen d'un arbre de pivotement s'étendant parallèlement à l'axe de rotation du rotor (6), le moyen de tension comprenant un organe de ressort relié à chaque moyen du type cuillère (5) et un organe de retenue étant adapté pour engager chaque moyen du type cuillère (5) dans une partie de son parcours.

5. Dispositif suivant la revendication 1, caractérisé en ce que le mécanisme au moyen duquel chaque moyen du type cuillère (5) peut être accéléré est commandé hydrauliquement.

6. Dispositif suivant l'une quelconque des revendications précédentes, caractérisé en ce que la direction de rejet du moyen de godet (8) par rapport à la direction de déplacement du dispositif peut être inversée.

7. Dispositif suivant la revendication 6, caractérisé en ce que le (chaque) moyen du type cuillère (5) peut pivoter autour de son axe longitudinal et le rotor (6) peut être commandé dans les deux directions.

8. Dispositif suivant la revendication 6, caractérisé en ce que le moyen du type cuillère (5) est pourvu de deux moyens de godet (8) se faisant face et le rotor (6) peut être commandé dans les deux directions.

9. Dispositif suivant la revendication 6, caractérisé en ce qu'une partie du bâti (1) qui supporte le rotor (6) peut être monté de telle sorte qu'il puisse être tourné de 180° autour d'un axe vertical.

10. Dispositif suivant l'une quelconque des revendications précédentes, caractérisé en ce que sa direction de déplacement coïncide sensiblement avec l'axe de rotation du rotor (6).

11. Dispositif suivant la revendication 10, caractérisé en ce que le bâti (1) peut être accouplé à un moyen de propulsion, tel qu'un véhicule ou un bateau.

12. Dispositif suivant l'une ou l'autre des revendications 10 et 11, caractérisé en ce qu'une barge (2) est fixée au bâti (1), la barge (2) est ouverte du côté avant constituant la direction de déplacement du dispositif, et le (chaque) godet (8) pouvant se déplacer dans la barge (2).

13. Dispositif suivant la revendication 12, caractérisé en ce que la paroi de la barge (2) qui constitue la paroi arrière (3), qui fait face à la direction de déplacement du dispositif, est pourvue d'ouvertures.

14. Dispositif suivant l'une quelconque des revendications précédentes, caractérisé en ce que le (chaque) moyen de godet (8) est perforé.

15. Dispositif suivant l'une quelconque des revendications précédentes, caractérisé en ce que le (chaque) moyen de godet (8) est réalisé au départ d'un treillis métallique ou d'une matière de ce type.

16. Dispositif suivant l'une quelconque des revendications précédentes, caractérisé en ce qu'il peut être accouplé à un récipient de collecte, dans lequel la matière rejetée par le moyen de godet (8) peut être logée.

17. Dispositif suivant l'une quelconque des revendications précédentes, caractérisé en ce que le nombre de tours par minute du rotor (6) est de 5 - 50.

Drawing