Laying vehicle with its laying device, as well as method for laying at least one cable in a ground

Description

[0001] The invention relates to a laying vehicle and a method for laying at least one cable in a ground.

[0002] Laying devices for laying cables underground are known from the prior art. For example, such laying devices are used to lay underground cables without having to dig a complete trench. For this purpose, the laying devices typically have a plow that tears open the soil along the direction of travel of the laying device, allowing a cable to be inserted into the opened soil.

[0003] Depending on the depth at which the cable is to be laid in the ground, high forces can occur, which can affect the service life or strength of the components. Traditionally, the plow is driven vertically into the ground. For example, it is also common to dig a vertical trench for laying a cable on a slope. This is a traditional construction principle.

[0004] Furthermore, a machine is known from document DE 28 45 523 C2 which enables constant maintenance of a vertical position of the plough blade and the laying shaft.

[0005] It is an object of the present invention to at least partially remedy the above-mentioned disadvantages known from the prior art. In particular, it is an object of the present invention to improve the laying of at least one line in a ground, so that the at least one line can be laid at a higher speed and / or with less effort.

[0006] The above object is achieved by a laying vehicle having the features of claim 1, as well as a method having the features of claim 12. Further features and details of the invention emerge from the respective subclaims, the description, and the drawings. Features and details described in connection with the laying device according to the invention naturally also apply in connection with the laying vehicle according to the invention and / or the method according to the invention, and vice versa, so that with regard to the disclosure of the individual aspects of the invention, reference is always made to each other.

[0007] A laying device for laying at least one line in a soil is provided. The laying device has a coupling interface that can be aligned with a ground surface for coupling to a propulsion means suitable for moving the laying device along a propulsion direction. The laying device also has a plowing means for creating an opening in the ground for laying the line along the propulsion direction and a positioning unit for positioning the plowing means in the soil. The plowing means can be brought by the positioning unit into a rest position, in which the plowing means is located outside the soil, and a plowing position, in which the plowing means is located at least partially within the soil. Furthermore, it is provided that the plowing means, in the plowing position, has an angle of inclination about a longitudinal axis that runs along the propulsion direction.Due to the angle of inclination, the ploughing means in the ploughing position engages under a soil area of ​​the soil at an angle to the soil surface, preferably whereby the opening is at least partially closed by a gravitational effect on the soil area when the ploughing means moves along the direction of advance.

[0008] In particular, the laying device can be a cable plow. The term "line" can be understood to mean, in particular, an electrical line or a conduit. The ground can preferably comprise soil. For example, it is conceivable that the laying device can be used to lay an empty conduit in the ground, through which various cables can then be pulled. It is also conceivable that the line is a fiber optic cable and / or a fiber optic section. The propulsion means can, in particular, comprise a construction vehicle and / or a tractor. For coupling to the coupling interface, the propulsion means can comprise a counter-coupling interface.

[0009] The coupling interface can in particular comprise a plurality of fastening points with which the laying device can be connected to the laying vehicle. The direction of advance of the propulsion means can in particular be understood to mean a direction of travel. Furthermore, the ground surface can in particular be understood to mean a ground surface, preferably in the form of a ground plane, and / or a contact surface of the propulsion means. In the plowing position, the plough means is in particular aligned obliquely to the ground surface, as a result of which the plough means engages under the ground area both when moving on a level surface and when moving on a slope. The oblique alignment of the plough means to the ground surface can in particular create an opening which also runs obliquely to the ground surface, ie for example the extent of the opening can be greater than the depth of the opening.When inclined in the plowing position, the plowing means can preferably have an acute or obtuse angle to the ground surface. The longitudinal axis around which the plowing means is inclined can be oriented parallel to the direction of advance or identical to the direction of advance. In this case, the plowing means can in particular have further directions of inclination. In particular, the angle of inclination can further relate to a vertical axis and / or a vehicle plateau, which is preferably oriented perpendicular to the ground surface. The fact that the plowing means is arranged within the ground in the plowing position can comprise the plowing means being lowered when transferred from the rest position to the plowing position and thus creating the opening and / or plowing through the ground, in particular when the plowing means is moved along the direction of advance. In particular, the plowing means extends below the ground surface in the plowing position.

[0010] The ploughing means preferably comprises a plough blade that can be inserted into the ground to enable the opening of the ground. For this purpose, the ploughing means can be lowered into the ground, in particular by the positioning unit. In the rest position, the laying device can be guided by the propulsion means to a location from which the laying of the line is to begin. Transferring the ploughing means from the rest position to the ploughing position can be carried out by the positioning unit, preferably while the ploughing means is being moved by the propulsion means, so that a propulsive force of the propulsion means can be used to more easily insert the ploughing means into the ground.

[0011] The laying device preferably has a frame that connects the ploughing means to the coupling interface. This allows power to be transmitted from the propulsion means to the ploughing means in a stable manner via the coupling interface and the frame. The frame can be rigid or at least partially movable. For example, the frame can have joints to support positioning of the ploughing means. To transfer the ploughing means from the rest position to the ploughing position, the positioning unit can be designed, for example, hydraulically or with an electric motor. For example, the positioning unit can have a hydraulic cylinder, by means of which the ploughing means and / or part of the frame can be moved.

[0012] The fact that the ploughing means engages under the soil area in the ploughing position can therefore be understood in particular to mean that due to the inclined position of the ploughing means at the angle of inclination, the ploughing means is inserted into the soil at an angle and also ploughs through the soil at an angle when the ploughing means is moved along the direction of advance. The soil area can therefore in particular have a triangular cross-section which sags when the ploughing means is moved further along the direction of advance. In particular, the opening is closed behind the ploughing means in relation to the direction of advance. Due to the inclined insertion of the ploughing means, only a small scar is created in the soil, so that rework to close the opening is not necessary or only required to a reduced extent.Furthermore, it was surprisingly discovered that the inclined position of the plough significantly reduces the effort required to place the line at a specific depth. The laying device according to the invention thus overcomes a long-standing prejudice regarding the original construction principle, in which a vertical opening is dug into the ground to lay a line.

[0013] It is further conceivable in a laying device according to the invention that the ploughing means has an adjustment means for adjusting the angle of inclination about the longitudinal axis or that the ploughing means is fixed at the angle of inclination, i.e. preferably non-adjustable, on a frame which connects the ploughing means to the coupling interface. In particular, the frame can thus also be moved at least in part when transferring the ploughing means from the rest position to the ploughing position. For this purpose, the frame can have a lowering joint for lowering the area of ​​the frame. The adjustment means can in particular comprise a joint about the longitudinal axis. The adjustment means can further have a locking means for fixing the ploughing means at the set angle of inclination. Due to the adjustment option, an advantageous angle of inclination can be set depending on the type of soil.A further advantage of permanently mounting the ploughing device at the angle of inclination on the frame is that the frame support can be aligned to the predetermined angle of inclination, thus achieving a lighter frame in terms of frame strength. Furthermore, this eliminates the need for laborious adjustment and / or finding a suitable angle of inclination.

[0014] Furthermore, in a laying device according to the invention, it is conceivable that the angle of inclination is greater than or equal to 10°, preferably greater than or equal to 20°, relative to a vertical axis, which runs in particular perpendicular to the surface of the soil. Furthermore, it is conceivable that the angle of inclination is between 30° and 45°. It has been found that such angles of inclination, in particular the angle of inclination of 20°, enable an advantageous combination of an achievable depth of the opening and a required effort. This allows the ploughing means to advantageously cut through the soil layers when moving the laying device along the advance direction.

[0015] It is further conceivable in a laying device according to the invention that a guide unit is provided for guiding the line into the opening in the ground, in particular wherein the guide unit is arranged on the ploughing means. The guide unit can have an at least partially or completely closed guide section through which the line can be guided into the opening in the ground. By arranging the guide unit on the ploughing means, a particularly direct coupling of the ploughing means and the guide unit can be provided. Preferably, the guide unit is arranged downstream of the ploughing means with respect to the direction of advance, i.e. in particular when the ploughing means is moved in the direction of advance. As a result, the line can be laid at a desired depth in the ground, in particular automatically when the laying device is moved. The guide unit can comprise at least one insertion pipe for guiding the line into the opening in the ground.Advantageously, the laying device and / or the propulsion means can comprise a holding unit on which at least one cable is held, preferably at least two cables. For example, the holding unit can comprise a cable drum or a receptacle for cable sections. In particular, the holding unit can be designed to automatically provide the cables. Furthermore, it can be provided that the cables can be fed from the holding unit to the guide unit.

[0016] Furthermore, in a laying device according to the invention, it can advantageously be provided that the guide unit has a holding section for at least temporarily supporting the ground region for inserting the line into the ground, in particular wherein the holding section is arranged downstream of the plowing means when the plowing means is moved in the direction of advance. The holding section can in particular comprise a closed guide section of the guide unit. In particular, the holding section can extend opposite to the direction of advance when the plowing means is in the plowing position. This advantageously allows the opening to be kept open and the ground region to be supported while the plowing means is moved. This can facilitate the setting down of the line in the opening below the ground region before the ground region at least partially closes the opening or sags due to the movement of the plowing means.Preferably, the holding section is designed to support the soil area along the vertical axis. In particular, the holding section is coupled to the ploughing means, so that when the ploughing means moves along the advance direction, the holding section also moves, clearing the soil area. In particular, the holding section can be tubular to advantageously guide the line. It can be provided that the holding section is connected to a deflection section of the guide unit, through which the line can be deflected from a guide along the ploughing means into the advance direction during installation.

[0017] Furthermore, in a laying device according to the invention, it is conceivable that the guide unit is designed to simultaneously guide two lines into the opening in the ground. In particular, the guide unit can comprise two holding sections for keeping the opening open by supporting the ground area in order to support the ground area for both lines. By combining this with the angle of inclination of the ploughing means of the laying device, an advantageous depth can be achieved at which the two lines can be positioned. In particular, the guide unit can be designed to simultaneously guide two lines that are laid at least partially one above the other. For example, the guide unit can have two guide sections that are arranged one after the other in the direction of advance, at least partially. As a result, it is not necessary for the width of the opening to correspond to the sum of the two line diameters.Instead, the opening can be made narrower, which allows the ploughing means to be made narrower and further reduces forces when opening.

[0018] It is further conceivable in a laying device according to the invention that the coupling interface is designed for detachable or permanent, in particular non-detachable, coupling to the propulsion means. This can ensure that the laying device can be modularly mounted on the propulsion means. For example, this can allow a tractor and / or another commercial vehicle to be used for additional applications. Furthermore, this can allow the coupling interface to be stored in a space-saving manner. For detachable coupling to the propulsion means, the coupling interface can be designed, for example, for screwing to a counter-coupling interface of the propulsion means. Furthermore, it is conceivable that the coupling interface is designed to lock with the counter-coupling interface of the propulsion means. In particular, the coupling interface can be designed for a positive and / or non-positive connection to a counter-coupling interface of the propulsion means.For permanent coupling, the coupling interface can be designed, for example, for a material-to-material connection, in particular for welding, with a counter-coupling interface of the propulsion means.

[0019] Furthermore, a laying device according to the invention provides a hydraulic steering unit by means of which the ploughing means can be pivoted about a vertical axis in order to achieve steering when the laying device is moved when the ploughing means is in the ploughing position. The vertical axis can be understood in particular as an axis which, when the ploughing means is in the ploughing position, is oriented perpendicular to the ground and / or perpendicular to the direction of advance. The steering unit can thus enable, in particular, rudder-like steering of the propulsion means and / or the laying device. In particular, the ploughing means can be used as a rudder by means of the steering unit. Thus, cornering can be enabled with reduced force exerted by the propulsion means by the steering unit. In particular, depending on the soil conditions, steering can be enabled at all by the steering unit.Preferably, this makes it possible to achieve a curve radius of less than or equal to 50 meters, preferably less than or equal to 30 meters, particularly preferably less than or equal to 20 meters, when moving the plough means.

[0020] Furthermore, in a laying device according to the invention, it can advantageously be provided that the ploughing means is mounted on an articulated joint so as to be pivotable about the vertical axis. In particular, the articulated joint can be part of the frame. The articulated joint can be designed such that a center of gravity of the laying device and / or of a laying vehicle with the laying device shifts from the longitudinal axis to the center of the curve with increasing steering angle. In particular, an axis through the ploughing means that is horizontal with respect to the ground and an axis through the propulsion means that is horizontal with respect to the ground, in particular a chassis axis of the propulsion means, can meet at the center of the curve during pivoting. The articulated joint can be designed as a rotary joint. Furthermore, the articulated joint can represent a central area for connecting the ploughing means to the coupling interface.For example, it can be provided that a force of the ploughing means is transmittable to the coupling interface, in particular solely via the articulated joint. The articulated joint advantageously allows the ploughing means to be pivoted around the vertical axis in an angular range of more than 90°, preferably more than 180°. This advantageously enables a change in direction when moving the ploughing means by horizontal pivoting or bending, while simultaneously enabling an advantageous power transmission between the ploughing means and the propulsion means.

[0021] It is further provided in a laying device according to the invention that the steering unit comprises two hydraulic drive means for pivoting the plough means about the vertical axis, which are articulated at a distance from the vertical axis to pivot bearing points of the plough means, in particular wherein the pivot bearing points are arranged symmetrically to one another with respect to the articulated joint, in particular symmetrically to a center plane of the articulated joint. The hydraulic drive means can in particular be hydraulic cylinders. The pivot bearing points can comprise connecting rod bearings through which the hydraulic drive means are connected to the plough means. The hydraulic drive means can be arranged on one side of the plough means in order to enable adjustment of the plough means by lengthening and / or shortening the hydraulic drive means.In a symmetrical arrangement, the pivot bearings preferably share a common axis of rotation. This allows for advantageous force transmission without subjecting the articulated joint to transverse forces.

[0022] In a laying device according to the invention, it can preferably be provided that the plowing means has a plowing depth by means of which an opening depth of the opening in the ground of greater than or equal to 1 m, preferably greater than or equal to 1.2 m, particularly preferably greater than or equal to 1.4 m, can be specified in the plowing position. The plowing depth of the plowing means can be defined in particular by a length of the plowing means. In this case, it can be provided that the plowing means protrudes at least partially from the ground or the opening in the ground in the plowing position, so that the plowing depth can be greater than the opening depth. The plowing depth is preferably designed such that two lines can be laid one above the other in the ground at a depth of at least 1 m, preferably at least 1.2 m, particularly preferably at least 1.4 m.This allows for a high cover height, especially in agricultural areas, while simultaneously enabling high speed installation of two cables simultaneously. For example, for the use of fiber optic cables, especially for empty conduits for fiber optic cables, cable diameters of up to 80 mm are common. With an opening depth of 1.4 m, a cover height of 1.20 m can be advantageously achieved even when laying two cables one above the other simultaneously, particularly for agricultural use of the land.

[0023] According to one aspect of the invention, a laying vehicle is provided for laying at least one line in the ground. The laying vehicle has a propulsion means for generating propulsion along a propulsion direction on the ground and a laying device for laying the line in the ground. The laying device comprises a coupling interface which, for alignment with a ground surface, is coupled to a counter-coupling interface of the propulsion means, such that the laying device can be moved by the propulsion means along the propulsion direction, preferably parallel to the ground surface. Furthermore, the laying device comprises a plowing means for creating an opening in the ground for laying the line along the propulsion direction and a positioning unit for positioning the plowing means in the ground.The positioning unit can move the ploughing means into a rest position, in which the ploughing means is located outside the ground, and a ploughing position, in which the ploughing means is located at least partially within the ground. Furthermore, it is provided that the ploughing means, in the ploughing position, has an angle of inclination about a longitudinal axis along the direction of advance, so that the ploughing means engages beneath a soil region at an angle to the ground surface, preferably whereby the opening is at least partially closed by the effect of gravity on the soil region when the ploughing means is moved along the direction of advance.

[0024] Thus, a laying vehicle according to the invention offers the same advantages as have already been described in detail with reference to a laying device. The propulsion means can in particular comprise a tractor, a commercial vehicle and / or the like. The propulsion means can be driven hydraulically, electrically and / or by an internal combustion engine. The counter-coupling interface is preferably designed to correspond to the coupling interface of the laying device. In particular, the coupling interface and the counter-coupling interface can be detachably or permanently and / or permanently coupled to one another. The coupling interface and / or the laying device is or can be aligned in particular with respect to the ground surface by means of the coupling with the counter-coupling interface. For example, the frame can extend parallel to the ground surface at least in some regions.It is conceivable that the coupling interface and the counter-coupling interface are connected to each other by form-fitting, force-fitting, and / or material-locking. It is conceivable that the coupling interface and the counter-coupling interface are welded.

[0025] The installation vehicle thus allows for efficient installation of the pipe in the ground. A low-powered propulsion device can be used, particularly due to the low effort required for laying the pipe.

[0026] Furthermore, in a laying vehicle according to the invention, it can advantageously be provided that the propulsion means comprises a crawler drive. The crawler drive can be understood, in particular, as a tracked chassis or a crawler track. This allows the weight of the propulsion means and / or the laying vehicle to be advantageously transferred to the ground over a large area to reduce damage to the ground. In combination with the inclination of the ploughing means, which causes only a small scar in the ground, this results in a minimally invasive intervention in the ground when laying the cables.

[0027] According to a further aspect of the invention, a method is provided for laying at least one line in a ground using a laying device, in particular a laying device according to the invention, of a laying vehicle according to the invention. The method comprises the following steps: Transferring a ploughing means of the laying device for creating an opening in the ground from a rest position, in which the ploughing means is located outside the ground, into a ploughing position, in which the ploughing means is located at least partially within the ground and in which the ploughing means has an angle of inclination about a longitudinal axis along the direction of advance, wherein the ploughing means engages beneath a ground region of the ground at an angle to a ground surface of the ground due to the angle of inclination, Moving the laying device along the direction of advance while the ploughing means is in the ploughing position, preferably such that the opening is at least partially closed along the direction of advance by a gravity effect on the ground region, Inserting the line into the opening.

[0028] Thus, a method according to the invention brings with it the same advantages as have already been described in detail with reference to a laying device according to the invention and / or a laying vehicle according to the invention. In particular, the method can be carried out by a laying vehicle according to the invention. The transfer of the ploughing means from the rest position to the ploughing position can be carried out in particular by a positioning unit of the laying device. The movement of the laying device is preferably carried out by a propulsion means of the laying vehicle. When inserting the line into the opening, it can be provided that the line is fed from a holding unit for storing the line to a guide unit which is coupled to the ploughing means in order to lay the line in the ground. Furthermore, it can be provided that the line is deflected when inserting the line into the opening.Preferably, when inserting the line, the soil area is at least temporarily supported while the plough is moved.

[0029] This allows the cable to be laid easily with minimal effort and / or at high speed. Preferably, two cables are inserted into the opening simultaneously when inserting the cable into the opening.

[0030] Furthermore, in a method according to the invention, it is conceivable for the laying device to be steered during movement by pivoting the ploughing means around a vertical axis. Steering can be effected, in particular, by a steering unit of the laying device. The ploughing means can be pivoted about an articulated joint. In particular, steering of the laying vehicle can also be effected by pivoting the ploughing means. This allows the ploughing means to be used like a rudder to enable steering. Curve radii of less than or equal to 50 m, preferably less than or equal to 30 m, and particularly preferably less than or equal to 20 m, can be traversed.

[0031] Further advantages, features, and details of the invention will become apparent from the following description, which describes embodiments of the invention in detail with reference to the drawings. The features mentioned in the claims and in the description may be essential to the invention individually or in any combination. They show schematically: Fig. 1 shows a laying vehicle according to the invention for laying at least one line in a ground in a side view of a first exemplary embodiment, Fig. 2 shows the laying vehicle in a rear view, Fig. 3 shows the laying vehicle in a side view with a ploughing means in a rest position, Fig. 4 shows the laying vehicle in a plan view, Fig. 5 shows a schematic representation of method steps of a method according to the invention for laying at least one line in a ground and Fig. 6 shows an adjustment means of a laying device according to the invention.

[0032] In the following description of some embodiments of the invention, the same reference numerals are used for the same technical features even in different embodiments.

[0033] Figure 1shows a laying vehicle 1 according to the invention for laying at least one line 3 in a soil 200. For this purpose, the laying vehicle 1 has a laying device 10 according to the invention, which is coupled by a coupling interface 11 to a counter-coupling interface 2.1 of a propulsion means 2 and is aligned or alignable with a ground surface 203 of the soil 200. The propulsion means 2 can move the laying device 10 along a propulsion direction 210 in order to insert the line 3 into the soil 200. The propulsion means 2 can be, for example, a tractor, a construction vehicle, or the like. The propulsion means 2 preferably has a crawler drive 2.2 in order to distribute the weight of the laying vehicle 1, particularly during agricultural use of the soil 200. The coupling interface 11 can be designed for a detachable or permanent connection to the counter-coupling interface 2.1.For example, the coupling interface 11 and the negative coupling interface 2.1 can be screwed or welded.

[0034] In order to create an opening 202 for introducing the line 3 into the ground 200 along the advance direction 210, the laying device 10 has a ploughing means 12. In order to be able to initially transport the ploughing means 12 to the place of use, the laying device 10 has a positioning unit 14 for positioning the ploughing means 12 in the ground 200, as shown in Figure 2shown. By means of the positioning unit 14, the ploughing means 12 can be brought into a rest position I, in which the ploughing means 12 is located outside the ground 200. In particular, the ploughing means 12 is raised relative to the ground 200 in the rest position I. As a result, the laying device 10 can be moved by the propulsion means 2 without the ploughing means 12 engaging the ground 200. Furthermore, the ploughing means 12 can be brought into a ploughing position II by the positioning unit 14, in which the ploughing means 12 is located at least partially within the ground 200. As a result, the opening 202 can be introduced into the ground 200 when the laying vehicle 1 is moved along the propulsion direction 210.

[0035] Figure 3shows a rear view of the laying vehicle 1 with the laying device 10 in a schematic representation with the ploughing means 12 in the ploughing position II. The ploughing means 12 is inclined by an angle of inclination 211 about a longitudinal axis 220. The longitudinal axis 220 is in the Figures 1 and 2along the advance direction 210, i.e. in particular parallel to the advance direction 210. For example, the longitudinal axis 220 can correspond to a longitudinal axis of the laying vehicle 1 or lie parallel to it. Because the ploughing means 12 is inclined by the angle of inclination 211 about the longitudinal axis 220, the ploughing means 12 engages beneath a soil region 201 of the soil 200 at an angle to the soil surface 203. This leads to a reduced effort required to move the laying device 10, in particular if the line 3 is to be laid at a great depth. If the ploughing means 12 is now moved along the advance direction 210, the opening 202 closes at least partially because the soil region 201 subsides due to the effect of gravity. This also results in only minimal damage to the soil 200. Preferably, the ploughing means 12 is fixedly mounted on a frame 13 which connects the ploughing means 12 to the coupling interface 11.This allows for simple manufacture of the laying device 10 and advantageous support and / or force transmission between the plough means 12 and the coupling interface 11.

[0036] As in Figure 1As shown, the laying device 10 further comprises a guide unit 15 for guiding the line 3 into the opening 202 of the base 200. The guide unit 15 is arranged downstream of the ploughing means 12 when the ploughing means 12 moves in the advancing direction 210. In particular, the guide unit 15 can be arranged directly on the ploughing means 12. In the illustrated embodiment, the guide unit 15 is designed to simultaneously guide two lines 3 into the opening 202 of the base 200. For this purpose, the guide unit 15 has two, in particular at least partially parallel, guide sections 15.1. Preferably, the guide sections 15.1 are closed around the, in particular, continuous line 3. Furthermore, the guide unit 15 has a holding section 15, in particular an at least partially or completely curved, for each of the lines 3.2 for at least temporarily supporting the ground region 201, thereby facilitating the insertion of the line 3 into the ground 200. In particular, it can be provided that the line 3 can be deflected by the guide unit 15. The holding sections 15.2 thus prevent, in particular, the ground region 201 from sagging immediately during a movement of the plowing means 12 along the advancing direction 210 before the line 3 is placed. Advantageously, the laying device 10 and / or the advancing means 2 can have a holding unit 18 on which at least one line 3, preferably two lines 3, are held. The holding unit 18 can be designed to automatically provide the lines 3. In particular, it can be provided that the lines 3 are fed to the guide unit 15 from the holding unit 18.

[0037] Due to the angle of inclination 211 of the ploughing means 12 around the longitudinal axis 220, the ploughing means 12 can be designed with a ploughing depth 12.1, which advantageously allows an opening depth 202.1 of greater than or equal to 1.4 m to be achieved. This allows a cover height 200.1 of at least 1.20 m to be maintained even when laying the two cables 3 one above the other, particularly when the cables 3 are empty conduits for fiber optic cables.

[0038] Figure 5 shows a method 100 according to the invention for laying the line 3 in the ground 200 in a schematic representation of the method steps. First, the ploughing means 12 is transferred 101 from the rest position I to the ploughing position II. Subsequently, the laying device 10 with the ploughing means 12 is moved 102 along the advance direction 210. In this process, the lines 3 are inserted 103 into the opening 202 of the ground 200, in particular automatically.

[0039] As in the Figures 3 and 4As shown, the laying device 10 further comprises a steering unit 16 with two hydraulic drive means 16.1, in particular in the form of hydraulic cylinders, in order to improve or enable the maneuverability of the laying vehicle 1 with the laying device 10. By means of the drive means 16.1, the plough means 12, in particular with the guide unit 15, can be pivoted about a vertical axis 221 with respect to the coupling interface 11 and / or the propulsion means 2. For this purpose, the frame 13 further comprises a pivot joint, in particular in the form of an articulated joint 13.1, about which the plough means 12 is rotatably mounted about the vertical axis 221. The drive means 16.1 are articulated to the plough means 12 by pivot bearing points 16.2, which are arranged in particular symmetrically to a center plane of the articulated joint 13.1. This results in an advantageous force introduction to the articulated joint 13.1 when the plough means 12 is pivoted about the vertical axis 221.Thus, by pivoting 102.1 of the ploughing means 12 about the vertical axis 221, a rudder-like control of the laying vehicle 1 can be achieved.

[0040] It is conceivable that the laying device 10 has an adjusting means 17. By means of the adjusting means 17, the angle of inclination 211 of the plough means 12, as in Figure 6 shown, can be adjusted. This allows, for example, adaptation to specific conditions of the floor 200.

[0041] The above explanation of the embodiments describes the present invention exclusively by way of examples. Of course, individual features of the embodiments can be freely combined with one another, provided they are technically feasible, without departing from the scope of the present invention as defined by the independent claims. List of reference symbols

[0042] 1Laying vehicle 2Propulsion equipment 2.1Negative coupling interface 2.2Crawler drive 3Cable 10Laying device 11Coupling interface 12Plowing means 12.1Plowing depth 13Frame 13.1Articulated joint 14Positioning unit 15Guide unit 15.1Guide section 15.2Holding section 16Steering unit 16.1Drive means 16.2Pivot bearing points 17Adjustment means 18Pre-positioning unit 100Procedure 101Transfer 102Move 102.1Swivel 103Insert 200Soil 200.1Cover height 201Soil area 202Opening 202.1Opening depth 203Soil area 210Excavation direction 211Inclination angle 220Longitudinal axis 221Vertical axis IRest position IIPlight position

Claims

1. Laying vehicle (1) for laying at least one cable (3) in a ground (200), comprising a jacking means (2) for generating a jacking along a direction of advance (210) on the ground (200) and a laying device (10) for laying the cable (3) in the ground (200) with a coupling interface (11), which is coupled to a counter-coupling interface (2.1) of the jacking means (2) for alignment with a ground surface (203) of the ground (200), so that the laying device (10) can be moved along the direction of advance (210) by the jacking means (2), a plowing means (12) for making an opening (202) in the ground (200) for laying the cable (3) along the direction of advance (210), and a positioning unit (14) for positioning the plowing means (12) in the ground (200), wherein the plowing means (12) can be brought by the positioning unit (14) into a rest position (I), in which the plowing means (12) is located outside the ground (200), and a plowing position (II), in which the plowing means (12) is located at least partially inside the ground (200), characterized in that in the plowing position (II), the plowing means (12) has an angle of inclination (211) about a longitudinal axis (220) along the direction of advance (210), by means of which the plowing means (12) engages under a ground region (201) of the ground (200) at an angle to the ground surface (203), wherein the laying device (10) comprises a hydraulic steering unit (16) by which the plowing means (12) is pivotable about a vertical axis (221) in order to achieve steering when moving (102) the laying device (10) when the plowing means (12) is in the plowing position (II), wherein the steering unit (16) comprises two hydraulic drive means (16.1) for pivoting (102.1) the plowing means (12) about the vertical axis (221), which are articulated at a distance from the vertical axis (221) at pivot bearing points (16.2) of the plowing means (12).

2. Laying vehicle (1) according to claim 1, characterized in that the jacking means (2) comprises a caterpillar drive (2.2).

3. Laying vehicle (1) according to claim 1 or 2, characterized in that the plowing means (12) has an adjusting means (17) for adjusting the angle of inclination (211) about the longitudinal axis (220), or in that the plowing means (12) is fixedly mounted at the angle of inclination (211) on a frame (13) which connects the plowing means (12) to the coupling interface (11).

4. Laying vehicle (1) according to one of the preceding claims, characterized in that the angle of inclination (211) is greater than or equal to 10°, preferably greater than or equal to 20°, relative to a vertical axis (221), which in particular runs perpendicular to the ground surface (203) of the ground (200).

5. Laying vehicle (1) according to one of the preceding claims, characterized in that a guide unit (15) is provided for guiding the cable (3) into the opening (202) of the ground (200), in particular wherein the guide unit (15) is arranged on the plowing means (12).

6. Laying vehicle (1) according to claim 5, characterized in that the guide unit (15) has a holding section (15.2) for at least temporarily supporting the ground region (201) for inserting the cable (3) into the ground (200), in particular wherein the holding section (15.2) is arranged downstream of the plowing means (12) when the plowing means (12) is moved in the direction of advance (210).

7. Laying vehicle (1) according to any one of claims 5 or 6, characterized in that the guide unit (15) is designed to guide two cables (3) simultaneously into the opening (202) of the ground (200).

8. Laying vehicle (1) according to one of the preceding claims, characterized in that the coupling interface (11) is designed for detachable or permanent coupling with the jacking means (2).

9. Laying vehicle (1) according to one of the preceding claims, characterized in that the plowing means (12) is mounted on an articulated joint (13.1) so as to be pivotable about the vertical axis (221).

10. Laying vehicle (1) according to one of the preceding claims, characterized in that the pivot bearing points (16.2) are arranged symmetrically to one another in relation to the articulated joint (13.1).

11. Laying vehicle (1) according to one of the preceding claims, characterized in that the plowing means (12) has a plowing depth (12.1), by means of which an opening depth (202.1) of the opening (202) of the ground (200) of greater than or equal to 1 m, preferably greater than or equal to 1.2 m, particularly preferably greater than or equal to 1.4 m, can be preset in the plowing position (II).

12. Method (100) for laying at least one cable (3) in a ground (200) by a laying vehicle (1) according to one of the preceding claims, comprising the following steps: - transferring (101) of a plowing means (12) of a laying device (10) of the laying vehicle (1) for producing an opening (202) of the ground (200) from a rest position (I), in which the plowing means (12) is located outside the ground (200), into a plowing position (II), in which the plowing means (12) is located at least partially inside the ground (200) and in which the plowing means (12) has an angle of inclination (211) about a longitudinal axis (220) along the direction of advance (210), by means of which the plowing means (12) in the plowing position (II) reaches under a ground region (201) of the ground (200) at an angle to a ground surface (203) of the ground (200), - moving (102) the laying device (10) along the direction of advance (210) while the plowing means (12) is in the plowing position (II), - inserting (103) the cable (3) into the opening (202), wherein the laying device (10) is steered during movement (102) by pivoting (102.1) of the plowing means (12) about a vertical axis (221), wherein the pivoting (102.1) is effected by two hydraulic drive means (16.1) of the steering unit (16), which are articulated to pivot bearing points (16.2) of the plowing means (12) at a distance from the vertical axis (221).