Trench cutter

Abstract

The invention relates to a trench cutter (1) for producing a trench (36) extending along a trenching direction in the ground (8). The trench cutter (1) comprises a cutter chassis (3) which is suitable for being moved in the trenching direction and which has a front chassis region (2) and a rear chassis region (6) in relation to the trenching or cutting direction. A cutting device (4) is arranged in the front chassis region (2), and a conveying device (7) for conveying the ground material that has been cut out of the ground (8) is arranged in the rear chassis region (6). The ground material that has been cut out by the cutting device (4) is transferred to the conveying device (7) by the cutting device (4). The cutting device (4) comprises at least a grinding mechanism (9) and a cutting mechanism (5). The cutting mechanism (5) comprises a first rotatable cutting disk (10) and a second rotatable cutting disk (10) spaced apart from the first cutting disk (10). The first cutting disk (10) is arranged on the first side (11, 12) of the front chassis region (2), and the second cutting disk (10) is arranged on the second side (12, 11) of the front chassis region (2) situated opposite the first side (11, 12). The cutting disks (10) are suitable for cutting the lateral boundary of the trench into the ground (8) in the trenching direction. The grinding mechanism (14) is arranged between the first and second cutting disks (10).

Description

[0001] TRENCH MILL

[0002] AREA OF INVENTION

[0003] The invention relates to a trenching machine according to the preamble of claims 1 and 7. The trenching machine is thus used to create a trench running along a trenching direction, in particular a walkable trench, in soil or earth. The trenching machine comprises a milling chassis which is suitable for being moved in the trenching direction (motorized, in particular combustion and / or electric). With respect to the trenching or milling direction, the milling chassis has a front chassis area (front side) and a rear chassis area (rear side). A milling unit is arranged in the front chassis area (front side), and a conveying unit for conveying or transporting the soil material milled out of the ground is located in the rear chassis area (rear side). During milling, the soil material (earth) milled out by the milling unit is transferred by the milling unit to the conveying unit.In front of the conveying device, the milled soil material (earth) is thrown to the area surrounding the trench, for example in the direction of a lateral trench boundary, i.e. to the side of the trench.

[0004] The invention also relates to a milling method according to the preamble of claim 19 and claim 20.

[0005] TECHNOLOGICAL BACKGROUND

[0006] Particularly in the civil engineering sector, excavating trenches is regularly relevant, for example when laying cables and / or pipes. The soil in which the trench is to be dug must first be broken up and then removed from the ground, leaving the trench in the soil. This often involves several, sometimes manual, work steps, and this is where the invention comes in.

[0007] PRESENTATION OF THE INVENTION

[0008] The object underlying the invention is to simplify and accelerate the excavation of a trench. This object is achieved by a trenching machine according to claim 1. Embodiments of the invention are the subject of the dependent and auxiliary claims. It is therefore provided that at least one manipulator is arranged on the trenching chassis, the manipulator comprising a manipulator base and a manipulator end region. The manipulator base is rotatably and / or pivotally and / or slidably arranged on, in, or upon the trenching chassis. The manipulator base can be arranged on a base support, for example, a bracket-like structure. The trenching unit can be rotatably and / or pivotally and / or slidably arranged in or on the manipulator end region.The milling device can be manipulated by the manipulator at least in the degrees of freedom height, orientation, position of the milling device and / or inclination of the slope of the trench before milling and / or during milling.

[0009] Particularly efficient milling is achieved when a first and at least one further manipulator are provided, with a milling device arranged on at least one manipulator, preferably on both the first and the further manipulator. If two manipulators with two milling devices are provided, the two milling devices can rotate in opposite directions, whereby some of the forces transmitted to the trencher during milling cancel each other out, thus reducing the total forces transmitted to the trencher.

[0010] According to a further embodiment of the trenching machine, the milling unit comprises at least a grinding unit and a cutting unit. The cutting unit includes a first, rotatable cutting disc and a second, rotatable cutting disc spaced apart from the first. The first cutting disc, for example, cuts the left side of the trench into the ground, and the second cutting disc cuts the right side. The distance between the cutting discs therefore corresponds to the width of the trench or is nearly equal to the width of the trench.

[0011] The first cutting disc is positioned on the front side of the chassis (for example, on the left side), and the second cutting disc is positioned on the opposite side of the front chassis (for example, on the right side). These (rotating) cutting discs are designed to cut the lateral boundaries of the trench into the ground in the direction of the trench's movement. Functionally, the spaced cutting discs resemble a double circular saw with two spaced-apart blades, which move along with the trenching chassis in the direction of the trench. These blades simultaneously cut the two lateral trench boundaries into the ground. The milling unit of the trencher is located between the first and second cutting discs.By operating the cutting unit and the grinding unit simultaneously, the lateral trench walls are cut into the ground at the same time, and the soil between the two lateral trench walls is ground. The trencher's conveyor system removes the ground soil or other soil material from the grinding unit and thus also from the area between the lateral trench walls where the trencher is operating.

[0012] Efficient operation of the milling machine is preferably achieved when the first and second cutting discs share a common axis of rotation. This axis can be horizontal or nearly horizontal, and may be oriented perpendicular or nearly perpendicular to the trench direction. Alternatively, at least one axis of rotation of a cutting disc can be inclined (variable or adjustable) to the horizontal. Preferably, both axes of rotation of both cutting discs can be inclined, for example, in a common direction or in different directions. The cutting discs can have a V-shaped inclination, which results in the (right and / or left) trench edge also being inclined. In certain applications, this leads to improved stability of the trench or its edge.

[0013] The direction of rotation of the cutting discs can be identical. The direction of rotation of the cutting discs can be oriented such that it supports the movement of the trencher along the milling or trenching direction (forward rotation when the trencher moves forward, backward rotation when the trencher moves backward). If necessary, the direction of rotation of the cutting discs can be changed, for example, if a back-and-forth movement of the trencher in the trench is required, or if the trencher is initially moved in one direction and then in the opposite direction to deepen the trench. Preferably, the grinding unit comprises a first grinding roller and a second grinding roller. The first grinding roller can be rotatable about a first roller rotation axis, and the second grinding roller about a second roller rotation axis. The first roller rotation axis and the second roller rotation axis can each be oriented vertically.The first roller rotation axis can be arranged parallel to and spaced apart from the second roller rotation axis, with the roller rotation axes positioned side by side with respect to the milling or trenching direction. The arrangement with the two adjacent rollers can resemble that of a roller mill with corresponding counter-rotation of the (toothed) rollers, except that, unlike a stationary roller mill, the rotation axes are oriented vertically rather than horizontally. The milling device can comprise or be formed from a milling roller with a rotary drive, particularly a hydraulically operated one.

[0014] The milling machine can be equipped with one or more drives for moving the milling unit itself and / or for rotating the components of the milling attachment or cutting and grinding unit. At least the first cutting disc can be mechanically coupled to a rotary drive with a drive motor, with the rotation of the second cutting disc being mechanically coupled to the rotation of the first cutting disc via a shaft or gearbox. Alternatively, the first and second cutting discs can each be mechanically coupled to a rotary drive with at least one drive motor. The grinding unit can include a rotary drive with at least one drive motor. Alternatively, the rotation of the grinding unit's rollers can be mechanically coupled to the rotation of the first and / or second cutting disc via a shaft or gearbox.

[0015] For efficient milling of soil or earth, it can be advantageous for the first and / or second cutting disc to have cutting teeth on its outer edge. The first and / or second grinding roller(s) can have toothing around its circumference and distributed across its outer surface, with the teeth of the toothing preferably arranged along a spiral or helical contour on the outer surface of the grinding roller(s). The milling device can have toothing and / or a chisel arrangement around its circumference, particularly distributed across the outer surface of the milling roller(s).

[0016] The direction of rotation of the first grinding roller (first toothed roller) can be opposite to the direction of rotation of the second grinding roller (second toothed roller), with the directions of rotation of the grinding rollers (toothed rollers) being selected such that the ground soil material can be transported towards a space between the first and second grinding rollers. Counter-rotation of the two grinding or toothed rollers can be provided, so that the soil material to be ground is moved into or through the roller assembly.

[0017] Furthermore, trenching can be accelerated and / or simplified with a trenching machine according to claim 7. In the trenching machine described above, the conveying device includes a clearing device arranged in or on the front chassis area, which allows soil material to be cleared into a conveying channel of the conveying device. The clearing device can include at least one, preferably rotatable, clearing bucket.

[0018] To ensure that the soil processed by the cutting and grinding unit can be removed both from the milling unit itself and from the trench, it can be advantageous for the conveying system to have at least one conveying channel, particularly one that is at least partially helical or oval-shaped, with a lateral boundary. The conveying channel is arranged such that the soil material ground by the milling unit is conveyed within the system in a direction that includes a vertical upward component. The soil material is conveyed upwards along the oval-shaped upward-sloping channel, or upwards and simultaneously backwards or to the side, i.e., away from the milling unit. Alternatively or cumulatively, the conveying system can include at least one laterally bounded conveying channel that is at least partially inclined upwards.The soil material (earth) is pushed onto the conveyor so that it is moved away from the cutting / grinding unit or the milling device. Particularly efficient removal of the ground soil material is achieved when the conveying system includes at least one, preferably multi-section, conveyor belt for transporting the soil material ground by the grinding unit or milling device. The conveyor belt can be driven (electrically) by a motor and have the characteristics of an endless conveyor belt guided around deflection rollers. The conveyor belt can comprise a first conveyor section and at least one further conveyor section. The conveyor belt can be aligned parallel to the milling and trenching direction, at least in sections. Alternatively, the conveyor belt can be aligned at an angle, for example perpendicular, to the milling and trenching direction, at least in sections.The conveyor belt can have an incline, at least in sections, with the incline being arranged such that the soil material ground / milled by the grinder or milling unit is conveyed within the conveying system in a direction that has a vertical upward component. The soil material is conveyed out of the trenching unit and, expediently, also out of the trench. The conveying system can, for example, discharge the soil material ground / milled by the grinder or milling unit laterally and / or in the rear chassis area.

[0019] To enable the milling machine to be moved with minimal effort in the direction of the trench or through the trench, the milling machine chassis may be equipped with its own milling drive for movement on the ground and / or in the trench, particularly on the trench bottom. The milling drive may include an internal combustion engine. The milling drive may also include or be formed from a chain drive mounted on the underside of the milling machine chassis. Regardless of whether a milling drive is provided, the milling machine chassis may include a milling undercarriage mounted on the underside of the chassis for moving the trenching machine. The milling undercarriage may include wheels and / or tracks.

[0020] The trenching machine can be remotely controlled via a remote control or a (computer) operating device. The trenching machine can be navigable. For example, it can be designed so that navigation or geodata (coordinates) is transmitted to a control unit of the trenching machine, enabling the trenching machine to autonomously excavate the trench according to the stored navigation / geodata. The trenching machine can include a navigation system and / or sensors for the sensory acquisition of soil and / or environmental information. The sensor information can be evaluated by an evaluation unit of the trenching machine and, if necessary, transmitted to an operating device.

[0021] For example, if no dedicated milling drive is provided, it can be advantageous to have a coupling device in the front and / or rear chassis area, allowing the milling chassis to be coupled to a land vehicle, particularly a construction vehicle or tracked vehicle. This allows the milling machine to be pushed or pulled across the ground or through the trench.

[0022] The trencher may also be equipped with a lifting device for raising and lowering the trencher itself, the trencher chassis, and / or the milling unit. This lifting device may include a lifting mechanism and / or a pneumatic system. The lifting device allows the trencher to be lowered and raised as a whole or in sections, for example, only the milling unit, so that the trencher or the milling component (milling unit) can be separated from the ground / subsoil.

[0023] In a preferred embodiment of the trenching machine, the milling unit can be interchangeable, in particular with a second milling unit adapted to the soil class of the soil material, or with a tool, for example, a raking or digging bucket. If two manipulators are provided, for example, a milling unit (milling drum) can be arranged on one manipulator and a bucket on the second manipulator, for example, to remove stones from the soil material before milling at the point where a stone is located in the ground.

[0024] Furthermore, the excavation of a trench can be accelerated and / or simplified by a method according to claim 19. The method is used for milling a trench, particularly one that is walkable. It is provided that a trenching machine with the features described herein is moved into the soil material in which a trench is to be created and mills the soil material there, the soil material being mechanically ejected by the trenching machine outside the trench in the area of ​​the left or right trench boundary.

[0025] Furthermore, the excavation of a trench can be accelerated and / or simplified by a method according to claim 20. Accordingly, the trenching machine is moved along the trench bottom in the direction of the trench. The machine therefore does not move alongside the trench, but within the trench. It may be advantageous if the trenching method is applied in such a way that the lateral trench boundary and / or the slope of the trench run at least partially at an angle.

[0026] The milling chassis of the trenching machine can have a width in a range of approximately 1.5 m to approximately 2.5 m; preferably, the width of the milling chassis is approximately 2 m. If the trenching machine includes one or more movable manipulators, it can mill a trench with a width of more than 2 m, since the manipulator(s) can project beyond the lateral edge of the milling chassis when actuated accordingly.

[0027] Trenching can be accelerated and / or simplified by using a trenching machine described herein. This machine is used to create a trench for laying lines, particularly telecommunications lines, or to lay pipes or pipelines with a diameter of approximately 1 m or more than approximately 1 m and less than approximately 4 m, preferably with a diameter of approximately 2.5 m, or to create a walkable trench with a height of approximately 1.5 m or more than 1.5 m and less than 3 m, preferably with a height of approximately 2 m. The width of the walkable trench can range from approximately 0.5 m to approximately 5 m, preferably approximately 2 m.The trench can be milled layer by layer; for example, in a first milling direction, a first layer of soil is removed (forward direction), and in a second direction, a second layer is removed (reverse direction). The milling machine always moves along the bottom of the trench.

[0028] The aforementioned components, as well as those claimed and described in the exemplary embodiments, to be used according to the invention are not subject to any special exceptional conditions with regard to their size, shape, material selection and technical conception, so that the selection criteria known in the field of application can be applied without restriction.

[0029] Further details, features, and advantages of the subject matter of the invention will become apparent from the dependent claims, as well as from the following description and the accompanying drawing, in which an exemplary embodiment of a trenching machine is shown. Individual features of the claims or embodiments can also be combined with other features of other claims and embodiments.

[0030] BRIEF DESCRIPTION OF THE FIGURES

[0031] The drawing shows

[0032] Figs. 1a - 1f show a trenching machine in different views,

[0033] Figs. 2a - 2f show a variant of a trenching machine in different views,

[0034] Fig. 3a-d shows a trenching machine with one manipulator and Fig. 4a-d shows a trenching machine with two manipulators.

[0035] DETAILED DESCRIPTION OF EXAMPLES OF EXECUTION

[0036] Figures 1a to 1f and 2a to 2f show different versions of a trenching machine 1, each from a different perspective. The trenching machine 1 comprises a milling unit 4 with cutting and grinding elements 5, 9 in the front chassis section 2 of the milling chassis 3. A conveying device 7 is arranged in the rear chassis section 6, which conveys the soil material milled out of the ground 8 by the milling unit 4 away from the machine 1 and out of the trench.

[0037] The cutting unit 5 of the milling device 4 comprises two spaced-apart cutting discs 10, namely a right cutting disc 10 and a left cutting disc 10. The right cutting disc 10 is located on the right chassis side 11 and the left cutting disc 10 is located on the left chassis side 12. The cutting discs 10 are each toothed. The right cutting disc 10 cuts the right trench boundary into the ground and the left cutting disc 10 cuts the left trench boundary.

[0038] The soil material between the right and left trench boundaries is crushed by the grinding unit 9 of the milling device 4. The grinding unit 9 is designed as a toothed roller mill 9, with the rotational surfaces 13 of the grinding rollers 14 running vertically. Preferably, counter-rotation of the toothed roller pair (14) is provided, so that the soil material to be ground by the grinding unit 9 is moved by the teeth 15 of the toothed rollers 14, which are helically distributed on the surface of the rollers 14, towards the gap 16 between the first and second toothed rollers 14. It can be provided that the teeth 15 of the first toothed roller 14 engage with the teeth 15 of the second toothed roller 14, so that the rollers 14 are interlocked. From the cutting and grinding unit 5, 9, the crushed soil material enters the conveying device 7 of the trench roller 1. In the design according to Figures 1 a to 1f, a conveying device 7 with a reversing conveyor 17 is provided.The ground soil material is conveyed via at least one conveyor 18 into the reversing conveyor 17 and can be discharged laterally in the upper section of the reversing conveyor 17. Fig. 1a shows a perspective schematic view of a trenching machine 1 with milling unit 4 and conveying unit 7. A hinged arrangement (not shown in the figures for the sake of simplicity) can be provided between the milling unit 4 and the conveying unit 7, so that, for example, the milling unit 4 is arranged at a slight angle relative to the conveying unit 7, or forming a joint angle. The inclination or joint angle can be changed. The conveying unit 7 comprises an inclined conveyor 18 with a tapered section 19, which opens into the inlet 20 to the reversing conveyor (17) with lateral limits. At the end of the reversing conveyor, a discharge 21 is provided for the soil material ground by the milling unit 4.Fig. 1b shows a perspective schematic view of the underside of the arrangement according to Fig. 1a.

[0039] A schematic front view of the trenching machine 1 according to Figures 1a and 1b is shown in Fig. 1c. The cutting discs 10 of the cutting unit 5 of the milling device 4 are located on the sides 11, 12 of the milling chassis 3. The cutting discs 10 are rotatably mounted in a milling device frame 22 and can be rotated, for example, by one or more drives (not shown in the figures). The cutting discs 10 have a toothed cutting disc 23 on their edge, with several teeth 15 projecting from the edge of the cutting disc 10.

[0040] According to Fig. 1c, the grinding mechanism 9 of the milling device 4 comprises two adjacent grinding rollers 14. Each grinding roller 14 includes a toothed section 24, which can be interlocked in the area of ​​the gap 16 between the rollers 14. The axes of rotation 13 of the grinding rollers 14 run vertically (according to Fig. 1e, perpendicular to the plane of the drawing) and parallel to each other. A drive gear 25 is arranged on the end face of each grinding roller 14, which can be connected to one or more drives (not shown in the figures). The grinding rollers 14 can also be rotatably mounted on a support 26 of the milling device frame 22. A side view of the trenching machine 1 is shown schematically in Fig. 1d.Accordingly, the spiral track (17) of the conveying device 7 protrudes from the top of the chassis 3 of the milling unit 1, so that the soil material ground by the milling unit 4 can be ejected laterally or to the rear from the top of the milling unit 1. A schematic top view of the arrangement according to Figures 1a to 1d is shown in Figure 1e, and a schematic view of the underside is shown in Figure 1f.

[0041] The variant of the trenching machine 1 shown in Figures 1a to 1f can have its own milling drive, with which the trenching machine 1 can be driven or moved automatically, in particular along the trenching direction. Alternatively or cumulatively, in the variant according to Figures 1a to 1f, a coupling device can be arranged, for example, on the chassis, in particular in the front chassis area 2 and / or in the rear chassis area 6, so that the milling chassis 3 can be coupled to a land vehicle, in particular to a construction vehicle or to a tracked vehicle.The trenching machine 1, as shown in Figures 1a to 1f, would then be part of a vehicle combination and can therefore be pulled or pushed, either when it does not drive itself (if no milling drive is available) or in addition to its own milling drive, for example if the forward motion of the milling drive is insufficient, which may be the case with a wide or deep trench, or if the ground or subsoil is hard and / or stony.

[0042] In the variant shown in Figures 2a to 2f, a conveying device 7 with a transport belt 27 is provided. The transport belt 27 comprises a first transport belt section 28 and a second transport belt section 28, which connects to the first with respect to the transport of the soil material. Figure 2a shows a perspective schematic view of a variant of a trenching machine 1 with a milling unit 4 and a conveying device 7. A joint arrangement (not shown in the figures for the sake of simplicity) can be provided between the milling unit 4 and the conveying device 7, so that, for example, the milling unit is arranged slightly inclined relative to the conveying device, or forming a joint angle. The inclination or joint angle could also be variable in this variant.The conveying device 7 comprises an inclined conveying wall 29, which pushes the soil material ground by the milling device 4 towards the conveyor belt 27 of the conveying device 7. The conveyor belt 27 is formed in several sections, consisting of a first conveyor belt section 28 and a second conveyor belt section 28. The first conveyor belt section 28 is inclined and conveys the soil material backward and upward. The second conveyor belt section 28 runs transversely to the milling or trenching direction and conveys the ground soil material to the side (11, 12), either to the right or to the left, depending on the conveyor belt conveying setting and direction. Fig. 2b shows a perspective schematic view of the underside of the arrangement according to Fig. 2a.

[0043] A schematic front view of the trenching machine 1 according to Figures 2a and 2b is shown in Figure 2c. A schematic side view of the trenching machine 1 is shown in Figure 2d. A schematic top view of the arrangement according to Figures 2a to 2d is shown in Figure 2e, and a schematic view of the underside is shown in Figure 2f. A tracked chassis 30 is located on the underside, which can be connected to a milling drive so that the trenching machine 1 can move independently. Alternatively or cumulatively, a coupling device can be arranged, for example, on the chassis, particularly in the front chassis area 2 and / or in the rear chassis area 6, so that the trenching machine chassis 3 can be coupled to a land vehicle, in particular a construction vehicle or a tracked vehicle. The trenching machine 1 would then be part of a vehicle combination and could thus be pulled or pushed.

[0044] In the variants according to Figures 3a to 4d, the trenching machine 1 comprises at least one manipulator 31, at the end of which a milling unit 4 is arranged. The manipulator base 32 is rotatably and pivotably mounted on a support 32 of the milling machine chassis 3. The milling unit 4 is rotatably and pivotably mounted on the manipulator end region 34. The trenching machine 1 according to Figures 3a to 3d comprises a manipulator 31, which is arranged approximately centrally (with respect to its width) on the milling machine chassis 3. Figure 3a shows a side view of the (single-arm) trenching machine 1, and Figure 3b shows its isometric view. A front view is shown in Fig. 3c and Fig. 3d shows the trench cutter 1 on the trench bottom 35. According to Fig. 3d, the trench 36 comprises a section with a vertical or nearly vertical trench boundary and, in the upper trench area, a section with a sloping trench boundary (embankment 37).

[0045] The manipulator base 32 is arranged on a console 38 of the chassis 3. The milling head 4 comprises at least one milling drum, and the milling head 4 is arranged on a mount 39 in such a way that it is interchangeable, for example, with another milling head. Replacing the milling head 4 can be advantageous when the milling head 4 is worn, or when the milling head characteristics and the soil material (soil class) need to be matched.

[0046] A clearing device 40 is arranged on the underside of the front chassis area 2. The clearing device 40 comprises a clearing blade 41 on which collecting slides are arranged. The collecting slides can rotate about a slide axis. Each collecting slide comprises several clearing blades 42.

[0047] The soil material cleared by the clearing device 40 is first moved by the conveyor 7 to the rear chassis area 3 and from there upwards via conveyor belts 27, where it is ejected laterally from the trench 36. The soil material is conveyed under the console 38.

[0048] The trenching machine variant according to Figures 4a to 4d comprises a first manipulator 31 and a second manipulator 31. A milling unit 4 is arranged on each manipulator 31, so that the (two-armed) trenching machine 1 according to Figures 4a to 4d comprises two milling units 4. Figure 4a shows a side view, Figure 4b an isometric view, Figure 4c a front view, and Figure 4d a view of the milling machine 1 in the trench 36. The milling units 4 of the (two-armed) trenching machine 1 according to Figures 4a to 4d can be controlled and moved independently of one another. The two manipulators 31 allow the milling units 4 to be moved separately into any desired (working) position. The manipulators 31 are arranged on or next to the chassis sides 11, 12, so that a space 43 is formed between the manipulators.The clearing and conveying device (7, 40) of the (two-armed) trench cutter 1 according to figures 4a to 4d uses the space 43 between the manipulators 31 to convey the soil material through the space 43.

[0049] REFERENCE MARK LIST

[0050] 1 trenching machine

[0051] 2 front chassis area

[0052] 3 milling machine chassis

[0053] 4 Milling attachment

[0054] 5 cutting unit

[0055] 6 rear chassis area

[0056] 7 Funding facility

[0057] 8 Floor

[0058] 9 Mill, (tooth) roller mill

[0059] 10 cutting discs

[0060] 11 right chassis side

[0061] 12 left chassis side

[0062] 13 Rotation axis

[0063] 14 Grinding roller

[0064] 15 teeth

[0065] 16 spaces

[0066] 17 turning conveyors

[0067] 18th funding cycle

[0068] 19 Rejuvenation

[0069] 20 Entrance

[0070] 21 Ejection

[0071] 22 (milling setup) frames

[0072] 23 Cutting disc teeth

[0073] 24 Roller teeth

[0074] 25 Drive gear

[0075] 26 carriers

[0076] 27 Conveyor belt

[0077] 28 Conveyor belt section

[0078] 29 Conveyor wall

[0079] 30 Tracked chassis manipulator manipulator base carrier

[0080] Manipulator end area

[0081] Trench bottom

[0082] Dig

[0083] embankment

[0084] console

[0085] Recording

[0086] Clearing device

[0087] Clearance sign

[0088] Shovel

[0089] space

Claims

REQUIREMENTS 1. Trenching machine (1) for creating a trench (36) extending along a trench direction in a soil (8), wherein the trenching machine (1) comprises a milling chassis (3) which is suitable for being moved in the trench direction and which has a front chassis area (2) and a rear chassis area (6) with respect to the trench or milling direction, and wherein a milling device (4) is arranged in the front chassis area (2) and a conveying device (7) for conveying the soil material milled out of the soil (8) is arranged in the rear chassis area (6), characterized in that at least one manipulator (31) is arranged on the milling chassis (3), wherein the manipulator (31) comprises a manipulator base (32) and a manipulator end area (34), wherein the manipulator base (32) is rotatably and / or pivotally and / or slidably attached to or is arranged in or on the milling chassis (3),and wherein the milling device (4) can be arranged in or on the manipulator end region (34) in a rotatable and / or pivotable and / or sliding manner.

2. Trench cutter (1) according to claim 1 , characterized in that a first and at least one further manipulator (31) are provided, wherein a milling device (4) is arranged on at least one manipulator (31), preferably on the first and on the further manipulator (31) respectively.

3. Trenching machine (1) according to claim 1 or 2, characterized in that the milling device (4) comprises at least one grinding unit (9) and / or at least one cutting unit (5), wherein the cutting unit (5) preferably comprises a first rotatable cutting disc (10) and a second rotatable cutting disc (10) spaced apart from the first cutting disc (10), wherein the first cutting disc (10) is arranged on the first side (11, 12) of the front chassis area (2) and the second cutting disc (10) is arranged on the second side (12, 11) of the front chassis area (2) opposite the first side (11, 12), wherein the cutting discs (10) are suitable for cutting the lateral boundary of the trench in the trench direction into the ground (8), and wherein the grinding unit (14) is preferably arranged between the first and the second cutting disc (10).

4. Trench cutter (1 ) according to claim 3, characterized in that the grinding mechanism (9) comprises a first grinding roller (14) and a second grinding roller (14), wherein the first grinding roller (14) is rotatable about a first roller rotation axis (13) and the second grinding roller (14) is rotatable about a second roller rotation axis (13), wherein the first roller rotation axis (13) and the second roller rotation axis (13) are preferably oriented vertically, and wherein the first roller rotation axis (13) is arranged parallel to a distance from the second roller rotation axis (13), wherein the roller rotation axes (13) are preferably arranged next to each other with respect to the milling or trenching direction.

5. Trenching machine (1) according to one of claims 1 to 4, characterized in that the milling device (4) comprises a milling drum with a rotary drive, in particular a hydraulically operated one.

6. Trenching machine (1) according to one of claims 1 to 5, characterized in that the milling device (4) has a toothing (24) and / or a chisel arrangement distributed circumferentially, in particular over the outer surface of the milling drum.

7. Trenching machine (1) according to the preamble of claim 1, in particular according to one of claims 1 to 6, characterized in that the conveying device (7) comprises a clearing device (40) which is arranged in or on the front chassis area (2), and with which soil material can be cleared into a conveying passage of the conveying device (7).

8. Trench cutter (1) according to claim 7, characterized in that the clearing device (40) comprises at least one, preferably rotatable, clearing shovel (42).

9. Trenching machine (1) according to one of claims 1 to 8, characterized in that the conveying device (7) has at least one, in particular at least partially helical, conveying passage (17, 18) with a lateral conveying passage boundary, wherein the conveying passage (17, 18) is arranged such that the soil material milled by the milling device (4) is conveyed within the conveying device (7) in a conveying direction which has a vertically upward direction component.

10. Trench cutter (1) according to one of claims 1 to 9, characterized in that the conveying device (7) comprises at least one conveying passage (18) which extends at least partially obliquely upwards and is laterally limited.

11. Trenching machine (1) according to one of claims 1 to 10, characterized in that the conveying device (7) comprises at least one, preferably multi-part, conveyor belt (27) for transporting the soil material ground by the grinding machine (9).

12. Trenching machine (1) according to claim 11, characterized in that the conveyor belt (27) is aligned at least section by section parallel to the milling and trenching direction, and / or that the conveyor belt (27) is aligned at least section by section at an angle, in particular perpendicular, to the milling and trenching direction, and / or that the conveyor belt (27) has an inclination at least section by section, wherein the conveyor belt inclination is arranged such that the soil material milled by the milling device (4) is conveyed within the conveying device (7) in a conveying direction which has a vertically upward directional component.

13. Trenching machine (1) according to one of claims 1 to 12, characterized in that the conveying device (7) discharges the soil material milled by the milling device (4) laterally and / or in the rear chassis area (6).

14. Trench cutter (1) according to one of claims 1 to 13, characterized in that the milling chassis (3) has its own milling drive for movement on the ground (8) and / or in the trench, in particular on the trench bottom (35).

15. Trench cutter (1) according to claim 14, characterized in that the milling drive comprises or is formed from a chain drive arranged on the bottom side of the milling chassis (3).

16. Trenching machine (1) according to one of claims 1 to 15, characterized in that the trenching machine (1 ) is remotely controllable, and / or that the trenching machine (1 ) is navigable. - ZZ - 17. Trench cutter (1) according to one of claims 1 to 16, characterized in that a coupling device is arranged in the front chassis area (2) and / or in the rear chassis area (6), whereby the milling chassis (3) can be coupled to a land vehicle, in particular to a construction vehicle or to a tracked vehicle.

18. Trenching machine (1) according to one of claims 1 to 17, characterized in that the milling device (4) is interchangeable, in particular against a second milling device adapted to the soil class of the soil material, or against a tool, for example a clearing or digging bucket.

19. Method for milling a trench, in particular a walkable one, characterized in that a trench milling machine (1) according to one of claims 1 to 18 is moved into the soil material in which a trench is to be produced and mills soil material there, wherein the soil material is mechanically ejected by the trench milling machine (1) outside the trench in the area of ​​the left or the right trench boundary.

20. Method according to the preamble of claim 19, in particular according to claim 19, characterized in that the trench cutter (1) is moved on the trench bottom (35) in the direction of the trench.

21. Method according to claim 19 or 20, characterized in that the lateral trench boundary and / or the slope (37) of the trench (36) runs at least partially at an angle.

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