EP1167636B1 - Device for forming a trench in the soil - Google Patents

Description

The invention relates to an arrangement for forming a trough in a continuously continuing Movement comprising a central frame in which a milling device for lifting the Ground groove is mounted, and a plurality of provided with sliding or rolling devices Support devices.

Such an arrangement is known for example from US 4,362,436. At the shown there Arrangement is specifically an arrangement for laying submarine cables. The Support means are formed at the front and rear ends of the assembly.

However, this known arrangement for forming a gutter is always designed for the case, that in a substantially horizontally extending, approximately flat bottom surface a mostly vertically aligned Erdnnne is to be formed.

Universal deployable arrangements for forming a gutter, in the support means with Tilt adjustment means are provided, such that the support means relative to the central frame in a slope transverse to the gutter are already known from NL-A-9201058 or JP-A-59044436

The two last-mentioned bodies take the digging of the gutter in an exclusive self-propelled motion in front.

Compared to this latter prior art, the object of the present invention in developing an alternative propulsion concept.

This object is achieved with an arrangement according to the features of patent claim 1. advantageous Further developments are specified in the subclaims.

A central idea of the present invention is that the arrangement further comprises a winch or comprises an external self-propelled device and that the milling arrangement by a winch and / or the external self-propelled device is pulled. At the same time there is at least one Support provided with tilt adjustment, such that the support means is adjustable relative to the central frame in a slope transverse to the gutter. This can be the Arrangement adapted to different soil conditions. A deviant from the vertical Orientation of the gutter can also be achieved.

In an advantageous embodiment, two support means with inclination adjustment provided, so that an even greater freedom in terms of adjustment is given. The Supporting devices should be adjustable in this embodiment so that each one on one Side of the trough can support.

In an alternative embodiment, even four support devices are associated with each Tilt adjustment provided such that even greater stability of the arrangement when forming a trough is given even under topologically difficult conditions.

To meet special topological conditions even better, are expediently at least one, preferably all support means adjustable in their effective length, in such a way that the distance between the sliding or rolling devices and the milling device is adjustable. In this way, the sliding or rolling devices in the pre-ordered distance to the Erdrinne be guided. Also, this distance can be changed during the continuing movement, especially if certain areas or areas in the vicinity of the trainee gutter Should not be charged or other areas or areas particularly well to accommodate the Load are suitable.

In a further advantageous embodiment, at least one support device, advantageously all supporting devices are pivotable about an axis perpendicular to the course of the soil channel, such that the individual support devices in the direction of travel, at the same height or behind the Milling device can be pivoted. Also by this measure, the flexibility in the use of the described arrangement even further increase. Furthermore, can be thereby adjusting the weight and load center of gravity relative to the milling device. If desired, the center of gravity or center of gravity can be adjusted so that he lies in the area of the milling device.

To adjust the orientation of the sliding or rolling devices on a floor surface or to partially compensate for the set inclination of the support means to compensate or overcompensate, are in the distal regions of the at least one support device Advantageously, tilt compensation orientations are provided. This can be avoided in particular be that the axes of rotation of the rolling means outside of the support surface defined level lie. In other cases, however, this may well be desired.

In a special embodiment, the milling device can still with a plow for Breaking of the ground or for the extension of the formed by the milling device Erdrinne be provided. Especially the pre-breaking of the soil with swords or knives can ensure a comparatively fast ride of the milling device even on hard soils. Due to the additional attachments plows or swords can Performance be increased.

The milling device can be configured in a suitable manner in each case. Especially Reliable training is in the form of a cutting wheel. Higher excavation can be under Reach with a chain cutter. Depending on the application, but also others Milling devices conceivable, for example, one or more milling heads.

In a further preferred embodiment, a lifting and lowering device for the milling device intended. As a result, the depth of cut can be adjusted or varied. Alternatively or in addition It is also possible, the lifting and lowering device alternately with a predetermined frequency operate, especially on harder soils, the mechanical action on the ground improve.

The arrangement for forming a trough is designed as a pulled device. Here, the Arrangement by a winch or pulled by another self-propelled device or even be pushed.

Furthermore, it is conceivable, the above-described arrangement with a device for laying Cables, pipes or pipes to combine.

Fig. 1

eine erste Ausführungsform einer Anordnung zum Ausbilden einer Erdnnne mit einem Fräsrad,

Fig. 2

eine zweite Ausführungsform einer Anordnung zum Ausbilden einer Erdrinne mit einem Kettenfräser,

Fig. 3

eine Ausführungsform einer Absenkvorrichtung für ein Fräsrad,

Fig. 4

das Fräsrad nach Fig. 3 in Arbeitsstellung,

Fig. 5

einer Anordnung zum Ausbilden einer Erdrinne nach der Erfindung in einer schematischen Ansicht von vorne, und

Fig. 6

eine Anordnung zum Ausbilden einer Erdrinne in einer schematischen Ansicht von oben.

The invention will be explained below with respect to further features and advantages with reference to the description of embodiments and with reference to the accompanying drawings, wherein the winch or the external self-propelled device, according to the characterizing part of claim 1, not shown. Hereby show:

Fig. 1

a first embodiment of an arrangement for forming a Erdnnne with a cutting wheel,

Fig. 2

A second embodiment of an arrangement for forming a gutter with a chain cutter,

Fig. 3

an embodiment of a lowering device for a cutting wheel,

Fig. 4

the cutting wheel according to FIG. 3 in working position,

Fig. 5

an arrangement for forming a trough according to the invention in a schematic view from the front, and

Fig. 6

an arrangement for forming a trough in a schematic view from above.

In Fig. 1, a first embodiment of an arrangement for forming, a trough 12 is shown. The arrangement for forming a gutter comprises a central frame 11 as well a plurality, preferably four support means 15 to 18. At the distal ends of the support means 15 to 18 are sliding or rolling devices 14, here wheels arranged. With the at the Supporting devices 15 to 18 provided sliding or rolling devices 14, the arrangement is based on the ground. In the region of the central frame 11 is a milling device, here as Milling wheel 13 is formed, arranged.

The support means 15 to 18 are via inclination adjustment 19 to 22 relative to the central frame 11 at least in their inclination transverse to the Erdrinne 12 adjustable. In the concrete, in 1 illustrated embodiment, the support means 15 to 18 comprise a support arm 24 and a telescopic arm 25. The support arm 24 can as a single spar or as Double spar or designed in another way. The telescopic arm 25 engages the Support arm 24 and causes an angular adjustment of the support arm 24 relative to the central By adjusting the telescopic arm 25 so can the inclination of the support arm 24 relative to the central frame. The frame-side pivot points of the support arm 24th or the telescopic arm 25 are mounted on a carriage 26 which is located on a central Frame 11 connected Holm 27 is slidably mounted. A displacement of the carriage 26 the spar 27 is effected via a telescopic rod 28.

The cutting wheel 13 is in the present embodiment via a hydraulic motor (not shown) driven, which preferably acts eccentrically on the cutting wheel 13 and a hydraulic pump, the is provided anyway in the present arrangement, is supplied.

In Fig. 2, a modified embodiment is illustrated, in which instead of the cutting wheel 13th a chain cutter 23 is arranged on the central frame 11. The chain cutter 23 is preferably in one operated counter to the working direction of the arrangement rotational movement. The chain cutter 23 works very effectively, but with some wear, which increases the cost of ownership.

In Fig. 3, the cutting wheel 13 of the arrangement of FIG. 1 and one for raising and lowering the Milling device provided lifting and lowering device 30 illustrated in more detail. The cutting wheel 13 is in the raised position.

In Fig. 4 is the immersion of the cutting wheel 13 in the soil trough together with its storage 31st illustrated. As a result, a trough 12 is achieved with a depth of cut, which is about 75% of Diameter of the cutting wheel 13 is.

In Fig. 5 is an application of an arrangement for forming a Erdrinne after Invention schematically illustrated. In a sloping in subareas floor surface should a still vertical gutter 12 are incorporated. With the already explained tilt adjustment 19 to 22, the inclination of the support means 15, 16 can be adjusted, that arranged on the central frame 11 milling device 13, the Erdrinne 12 in the desired Registration, here vertical, trains. At the same time can be adjusted by the adjustable support means 15 to 18 sufficient ground clearance, distance to the gutter 12, center of gravity distribution, etc., set.

In the plan view illustrated in FIG. 6, the pivotability of the support means 15, 16, 17, 18 to a perpendicular to the course of the trough 12 axis A visible. This allows the individual support means 15 to 18 in the direction of travel before, at the same height or behind the Milling device 23 are pivoted. The intended for tilt adjustment telescopic Arms 25 are not shown in Fig. 6 for clarity. The However, the pivotability of the support means 15, 16, 17, 18 is similar by telescoping Arm 32 causes.

With the arrangement described herein for forming a gutter becomes a spider-like device allows for a variety of terrain forms a trough in each desired orientation can train. Corridor and terrain damage can be due to the flexible adjustability of here described arrangement are minimized as far as possible. The arrangement can be pushed or to be pulled. The arrangement can be used for laying a pipe (supply by a Laying shaft or pulling the tube behind) can be used. It can be done at the same time Lay multiple lines and / or line bands. Finally, known methods for Einsanden of the tube also in combination with the arrangement described here for Forming a trough be performed.

LIST OF REFERENCE NUMBERS

11

Central frame

12

earth trench

13

Milling device, cutting wheel

14

Sliding and rolling devices

15, 16, 17, 18

support means

19 to 22

Neigungseinstelleinrichtungen

23

Milling device, chain cutter

24

Beam

25

telescopic arm

26

carriage

27

Holm

28

telescopic rod

30

Lifting and lowering device

31

storage

32

telescopic arms

Claims (11)

1. Apparatus system for forming an earth trench (12) in a steadily continuing movement, comprising a tilling arrangement with a central frame (11), in which a tilling device (13, 23) for excavating the earth trench is mounted, and having a plurality of supporting devices (15 to 18) provided with sliding or rolling devices (14), wherein at least one supporting device (15 to 18) is provided with gradient-adjusting devices (19 to 22) such that the supporting device (15 to 18) can be adjusted with respect to the central frame (11) in an gradient transversely to the earth trench (12), characterised in that the apparatus system also comprises a winch or an external self-propelled apparatus and in that the tilling arrangement is pulled by the winch and/or the external self-propelled apparatus.
2. Apparatus system according to claim 1, characterised in that two supporting devices having in each case one gradient-adjusting device (19, 20) are provided on the tilling arrangement.
3. Apparatus system according to claim 1, characterised in that a total of four supporting devices (15 to 18) having in each case assigned gradient-adjusting devices (19 to 22) are provided on the tilling arrangement.
4. Apparatus system according to one of claims 1 to 3, characterised in that the effective length of at least one, preferably all supporting devices, can be adjusted on the tilling arrangement, such that the distance between the sliding or rolling devices (14) and the tilling device (13, 23) can be adjusted.
5. Apparatus system according to one of claims 1 to 4, characterised in that at least one, preferably all supporting devices, can be pivoted about an axis A which is vertical to the course of the earth trench (12) on the tilling arrangement, such that the individual supporting devices (15 to 18) may be pivoted in the direction of movement in front of, at the same height or behind the tilling device (13, 23).
6. Apparatus system according to one of claims I to 5, characterised in that in each case a gradient-compensating device is provided on the tilling arrangement in the distal region of the at least one supporting device (15 to 18) in order to be able to pivot the sliding or rolling devices (14) about an axis parallel to the course of the earth trench (12) and bring them to the required angular position to the assigned supporting device (15 to 18).
7. Apparatus system according to one of the preceding claims, characterised in that the supporting devices (15 to 18) on the tilling arrangement can be pivoted so that in a horizontal projection of the centres of gravity of the arrangement for forming an earth trench (12) lies in the region of the tilling device (13, 23).
8. Apparatus system according to one of claims 1 to 7, characterised in that a plough device for breaking the soil or for widening the earth trench is provided on the tilling arrangement in tilling direction in front of or after the tilling device (13, 23).
9. Apparatus system according to one of the preceding claims, characterised in that the tilling device is designed as a tilling wheel (13).
10. Apparatus system according to one of claims 1 to 8, characterised in that the tilling device is designed as a chain tiller (23).
11. Apparatus system according to one of claims 1 to 10, characterised in that a raising or lowering device (30) is provided for the tilling device (13, 23) in order to be able to raise or lower the tilling device (13, 23) with respect to the central frame (11).

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