Milling drilling equipment

Abstract

To improve the orientation of the trench cutter relative to the vertical direction. [Solution] The trench cutter is suspended from the mast of the carrier device by at least two support cables 16a, 16b and is vertically adjustable in position. The trench cutter has a cutter frame with two pairs of cutter wheels attached to the lower end region for excavating the ground. In the upper end region of the cutter frame, a suspension means 40 is positioned connected to the two support cables. The suspension means 40 has a rocker 50 that is rotatably mounted around a rocker shaft 52, which is oriented laterally to a support tube element extending between the rocker 50 and the cutter frame. A first support cable 16a is attached to the first lateral region of the rocker 50, and a second support cable 16b is attached to the second lateral region. At least one joint is positioned on the support tube element, spaced apart from the rocker shaft 52.

Description

Technical Field

[0002] , , , ,

[0003]

[0001] The present invention relates to a milling excavation device for forming an excavation groove in the ground as described in the preamble of claim 1, comprising a carrier device, a mast or boom attached to the carrier device, and a trench cutter, the trench cutter being suspended from the mast or boom of the carrier device by at least two support cables and being positionally adjustable in the vertical longitudinal direction, wherein the trench cutter has a longitudinally extending cutter frame, and at the lower end region of the cutter frame, two pairs of cutter wheels for excavating the ground are rotatably attached and rotatably driven, and at the upper end region, a suspension device is arranged connected to the two support cables.

Background Art

[0002] In European Patent Application Publication No. 2378002 (EP2378002A1), a milling excavation device is known in which a trench cutter is suspended from a suspension device by two strands of support cables. A rotatable deflection pulley is applied to the suspension device, and the support cables are guided around it, thereby forming two support strands. In such a suspension structure in which one support cable is guided around the deflection pulley, a suspension structure that can swing substantially freely like a pendulum is ensured, and thereby, the trench cutter is held such that substantially no lateral force acts thereon. This is advantageous for excavating the ground in the vertical direction as much as possible. In addition, a pulley effect is obtained, whereby the applied lifting force is typically reduced by about half. However, in this suspension structure, there is a problem that when the size of the cutter increases and the weight increases, it is necessary to select a support cable with a thicker diameter and higher strength accordingly. A support cable with a thicker diameter and higher strength requires a larger deflection pulley with a significantly larger pulley diameter. The diameter of the support cable cannot be arbitrarily increased. When the diameter of the pulley becomes larger than the groove width, the cutter cannot completely enter the groove.

[0003] Furthermore, attaching the deflection pulley to the cable suspension structure at the upper end of the trench cutter presents a problem because this attachment may come into contact with the support suspension in the cutting groove, which is often a bentonite suspension, or even a hardening cement suspension. Therefore, such suspension devices require thorough cleaning and maintenance after each drilling operation. [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] European Patent Application Publication No. 2378002 [Overview of the project] [Problems that the invention aims to solve]

[0005] The present invention aims to provide a milling drilling apparatus that achieves efficient suspension with good orientation of the trench cutter. [Means for solving the problem]

[0006] This objective is achieved by the present invention using a milling drilling apparatus having the features of claim 1. Preferred embodiments of the present invention are defined in the dependent claims.

[0007] According to a first aspect of the present invention, the trench cutter is suspended from at least two support cables that are independent of each other. This distributes the entire load of the suspended trench cutter across multiple support cables, allowing the support cables to have correspondingly smaller diameters. In addition, since each support cable can be driven by a separate winch, it can be designed with lower power than a single main winch having only one support cable.

[0008] In the case of a trench cutter suspended by at least two support cables, significant differences can occur between the individual support cables. This is because, regardless of the type of drive, differences in the elongation of, for example, relatively long support cables occur during operation, but the misalignment between cable ends can be particularly noticeable, even when multiple winches are used and the winches are very well synchronized. For example, in the case of suspension by two support cables, even a relatively small misalignment of a few centimeters can cause uneven load distribution, and therefore the suspended trench cutter may tilt significantly from its vertical position.

[0009] This inclination can negatively impact excavation work because it can cause the trench cutter to deviate from the typically vertically planned excavation direction. Even a slight deviation of the trench cutter when creating the trench can lead to misalignment of the diaphragm wall segments formed therein. As the diaphragm wall or impermeable wall is constructed in the ground from individual trench wall segments, inaccurately constructed, i.e., not precisely aligned, trench wall segments can cause defects or leaks in the diaphragm wall or impermeable wall. To prevent this, in a further embodiment of the invention, a rocker is positioned, which is rotatably mounted around a rocker axis oriented laterally with respect to the forward or longitudinal direction. In this way, a difference of a few centimeters between the support cables can be compensated for by the pendulum motion of the rotatable rocker, thereby allowing the suspended trench cutter to remain even more vertically aligned despite certain length differences between multiple, preferably two, support cables. Preferably, the two support cables are attached to opposite sides of the rocker.

[0010] In this case, the rocker shaft may be formed by a pivot pin located in the trench cutter. According to a further aspect of the present invention, a laterally oriented rocker shaft is located in a support tube element extending between the rocker and the cutter frame. In this way, the rocker shaft can be spaced upward from the actual cutter frame, thereby achieving improved, and in particular reliable, pendulum balance and orientation adjustment of the trench cutter.

[0011] Finally, precise vertical orientation adjustment of the suspended trench cutter is further improved by positioning at least one joint, particularly a rocking joint and / or a rotary joint, on the support tube element, spaced apart from the rocker axis. The rocking joint may preferably have a rocking axis, which is oriented laterally with respect to the rocker axis and / or laterally with respect to the longitudinal direction of the trench cutter. In this way, a kind of cardan suspension of the trench cutter can be achieved, particularly in combination with the rocker axis. The support tube element is understood as a rod-shaped support element and does not necessarily have to be constructed as a hollow tube. It may also be a multi-part design, for example, one or more joints may be positioned on individual sections of the support tube element or between elements.

[0012] In alternative or additional configurations of rotary joints, particularly those with the rotation axis oriented along the longitudinal direction of the trench cutter, the transmission of lateral forces and torques from the cable suspension to the trench cutter using at least two support cables can be further avoided or significantly reduced. This facilitates precise orientation adjustment of the trench cutter suspended by multiple support cables.

[0013] Overall, according to the present invention, the milling drilling apparatus is realized such that the trench cutter can be efficiently suspended by at least two support cables, thereby significantly avoiding the risk of lateral and oblique forces being transmitted from the cable suspension to the trench cutter, and the risk of continuous load being placed on one of the two winches.

[0014] In principle, support cables can be attached in any suitable manner to the areas on both sides of the rocker. According to one embodiment of the present invention, it is particularly suitable that the support cables be attached to the rocker in a deflectable manner via easily detachable connecting means, in particular pocket locks or thimble bolt connections. Preferably, by attaching two support cables to the rocker in a deflectable manner, the lateral force effect on the rocker by the support cables can be further canceled out. The connections are preferably easily detachable so that, for example, in the transport of a milling drilling device, the trench cutter can be easily separated from the support cables and, by extension, from the carrier device. While pocket locks are a plug-in type connecting device, thimble bolt connections are a particularly robust and easily obtainable cable connection.

[0015] A further advantageous configuration of the present invention is that a stopper device for limiting the rotation angle of the rocker is positioned on the support tube element. This allows the movement of the rocker to be limited when there is a large difference in the length of the support cables. In certain individual cases, it may be desirable to cause an intentional tilt of the trench cutter, for example, by adjusting two support cables relative to each other, to intentionally induce a deflection of the trench cutter from the vertical.

[0016] With respect to lateral forces, for particularly unimpeded suspension of the trench cutter, according to a further development of the present invention, it is advantageous for the oscillating joint to be positioned below the rocker shaft and to have an oscillating shaft oriented laterally with respect to the longitudinal direction, preferably also laterally with respect to the rocker shaft. In particular, the oscillating shaft may be perpendicular to the rocker shaft and to the longitudinal direction of the trench cutter, thereby forming a kind of cardan suspension between the rocker shaft and the oscillating shaft. Positioning the oscillating shaft below the rocker shaft reduces to some extent the risk of undesirable lateral forces and momentum being transmitted from the suspension to the trench cutter. In addition, this can also be useful when installing the trench cutter from a horizontal direction.

[0017] According to a further embodiment of the present invention, the suspension means preferably has a partition plate, which includes a first connector on its upper surface for detachably connecting a supply line from a carrier device and a second connector on its lower surface for detachably connecting a feed line toward the trench cutter. The suspension means is thus not limited to the arrangement of support cables only. To avoid undesirable lateral forces and tilt moments on the suspended trench cutter, other connection lines, namely the supply line between the carrier device and the trench cutter, are also incorporated into the suspension means. For this purpose, the suspension means has a partition plate, which becomes an integrated connection element for the supply line. This partition plate has a first connector on one side for detachably connecting a supply line from a carrier device and a second connector on the opposite side for detachably connecting a supply line toward the trench cutter. Connectors, such as plug connectors, which are particularly present for common supply lines, may be arranged on the partition plate. This allows for orderly connections of the supply lines through the partition plate. A further advantage of the bulkhead plate is that it concentrates the line within a circle of the smallest possible diameter, allowing the cutter to rotate well beneath the bulkhead plate. The diameter of this circle must be smaller than the drilling width of the trench cutter. Furthermore, it allows for controlled guidance of the hose during rotation.

[0018] This configuration of the present invention can be further developed in an advantageous way, wherein the partition plate is positioned on or above or below the rocker, and the partition plate is rotatable relative to the trench cutter. The partition plate may be positioned in the area of ​​the rocker, thereby allowing it to rotate together with the rocker. In principle, the partition plate can also be rotatably mounted in place of or in addition to the rocker. Such mounting of the partition plate allows forces acting on the supply line to be absorbed and corrected, so that these forces are not transmitted to the suspended trench cutter, or are hardly transmitted at all.

[0019] A further advantageous configuration of the present invention is that the partition plate has at least one connection for a delivery hose for supplying and / or removing a suspension. In particular, the delivery hose for supplying and / or removing a suspension, especially a pulverized suspension containing pulverized soil material, is functionally relatively thick-walled and has a relatively large diameter, which can typically be 10 cm to 20 cm or more. In particular, undesirable forces may be transmitted to a suspended trench cutter through such a dimensioned delivery hose, but this can be prevented or greatly reduced by providing a partition plate.

[0020] In particular, other supply lines such as the working fluid and coolant of hydraulic equipment, as well as electrical and data lines, can also be wired through the connecting elements of the partition plate.

[0021] A particularly balanced suspension of the trench cutter can be achieved through a preferred arrangement of suspension means and rockers along the longitudinal direction of the trench cutter, passing through the center of gravity of the trench cutter, while simultaneously avoiding undesirable lateral forces and tilt moments. In this case, the bulkhead plate can be centrally positioned with respect to the longitudinal direction to similarly avoid or minimize forces and tilt moments transmitted through the supply line.

[0022] Another preferred configuration of the present invention is that connecting means for one or more additional cables are provided in the suspension device. Such additional cables may function as auxiliary ropes and may be provided as a precaution. In principle, such additional cables are used, for example, to reduce the load on the hose line, or for recovery in the event of damage to the support cable or if the trench cutter is buried in the ground. The connecting devices for these additional cables may be selected in an appropriate manner, and in particular, pocket lock or thimble bolt connections may be provided.

[0023] In order to avoid the lateral forces acting on the suspended trench cutter, according to a further development of the present invention, a first deflection pulley is arranged in the tip region of the mast or boom to feed the first support cable longitudinally with respect to the suspension device, a second deflection pulley is arranged to feed the second support cable longitudinally with respect to the suspension device, and the first deflection pulley and the second deflection pulley are arranged adjacent to each other in the lateral direction with respect to the longitudinal direction. In particular, it is preferable that the pulley shafts of the first deflection pulley and the second deflection pulley are coaxial with each other. Thus, on the mast or boom of the carrier device, two deflection pulleys are arranged adjacent to each other in the lateral direction, particularly in the horizontal direction, and one support cable is guided on each deflection pulley. When preferably arranging two support cables, the distance between the two support cables guided through the deflection pulleys exactly or substantially exactly matches the distance where the support cables are arranged in the lateral region of the rocker. Thereby, the support cables can be fed parallel or substantially parallel to the rocker. This is also advantageous for preventing lateral forces from acting on the suspension of the trench cutter as much as possible.

[0024] According to a further development of the present invention, an alternative or additional configuration in this regard is that a first deflection pulley is arranged in the tip region of the mast or boom to feed the first support cable longitudinally with respect to the suspension means, and a second deflection pulley is arranged to feed the second support cable longitudinally with respect to the suspension means. Here, the first deflection pulley and the second deflection pulley are arranged vertically in the longitudinal direction. In particular, the pulley shafts of the first deflection pulley and the second deflection pulley are parallel to each other. Therefore, the shafts of the two deflection pulleys are spaced apart from each other in the vertical direction.

[0025] In particular, the distance between the pulley shafts, and thus the distance between the support cables, can also exist in the horizontal direction. For that purpose, the distance can preferably be selected like the distance between the two support cables in the lateral region of the rocker. In such an arrangement, it is also possible to preferably feed two support cables parallel or substantially parallel to the rocker on the trench cutter.

[0026] In principle, the support cables can be driven by a common winch, and the respective cable drums can be placed adjacent to each other. According to a further embodiment of the present invention, the first support cable is adjustable by a first winch, the second support cable is adjustable by a second winch, and a control device is provided, by using which the first winch and the second winch can be operated synchronously, so that a particularly advantageous operation is obtained.

[0027] In the configuration of two or more winches, a winch drive device that is correspondingly smaller and thus more cost-effective can be provided. By a control device with mechanical or preferably electronic control of the rotation of the winches, very good synchronization between the winches can be achieved. The small deviations that still occur result in relative length changes of the payed-out support cables, but can be reliably absorbed and corrected by the suspension device with a rocker according to the present invention. Thus, a particularly precise operation of the trench cutter with as little lateral force as possible is possible. <000用0097>

[0028] The present invention will be further described below based on preferred exemplary embodiments schematically shown in the drawings. The following are shown in the drawings.

Brief Description of the Drawings

[0029] [Figure 1] It is a front view of the milling excavation device of the present invention. [Figure 2] It is an enlarged top view from above of the milling excavation device of FIG. 1. [Figure 3] It is a first side view of the suspension means with a rocker. [Figure 4] It is a front view of the suspension means of FIG. 3. [Figure 5] It is a second side view of the suspension means according to FIGS. 3 and 4. [Figure 6] It is a perspective view of the suspension means according to FIGS. 3 to 5. [Figure 7] It is a top view onto the rocker in the first operating state. [Figure 8] This is a cross-sectional view along line AA of the rocker in Figure 7. [Figure 9] Figures 7 and 8 are top views of the rocker in the second operating state. [Figure 10] This is a cross-sectional view along line BB of the rocker in Figure 9. [Figure 11] Figures 7 to 10 show a top view of the rocker in the third operating state. [Figure 12] This is a cross-sectional view along line CC of the rocker in Figure 11. [Figure 13] This is a detailed front view of the suspension mechanism. [Figure 14] Figure 13 shows a cross-sectional view along line BB of the suspension means. [Figure 15] This is a detailed perspective view of the milling and drilling apparatus of the present invention. [Figure 16] Figure 15 is a front view of the milling drilling machine. [Figure 17] Figures 15 and 16 are side views of the milling and drilling apparatus. [Figure 18] This is a side view of another milling drilling apparatus of the present invention. [Figure 19] Figure 18 is a detailed enlarged view of the milling drilling machine. [Figure 20] Figure 19 is a front view of the milling and drilling machine. [Figure 21] Figures 19 and 20 are enlarged top views of the milling and drilling apparatus. [Figure 22] Figure 18 is a magnified detailed view of the details of the milling drilling machine, part B. [Modes for carrying out the invention]

[0030] The basic structure of the milling drilling apparatus 10 of the present invention will be described below in reference to Figures 1 and 2. The milling drilling apparatus 10 includes a carrier device 12, which may have a lower carriage that is preferably movable, particularly equipped with crawler tracks, and a superstructure preferably rotatably mounted thereon. A mast 14 that is upright when in operation may be adjustablely mounted on the carrier device 12. Instead of the mast 14, a boom may be provided, which may be articulated and rotatably positioned on the carrier device 12.

[0031] The trench cutter 20 is positioned along the mast 14 or boom so as to be vertically adjustable. The trench cutter 20 may have a cutter frame 22 and a cutter wheel 24, the cutter wheel 24 being rotatably mounted and rotatably driven in the lower region of the cutter frame 22. Support cables, not shown in detail in Figures 1 and 2, may be operated by a winch on the carrier device 12 and guided via deflection pulleys at the tip of the mast 14 or boom, by which the trench cutter 20 can be vertically adjusted and, in particular, lowered into the ground to form a trench while excavating soil material.

[0032] According to the illustrated exemplary embodiment, a feeder roller 18 may be attached to a mast 14, through which a delivery hose 17 or supply line 19 may be guided to the trench cutter 20. The delivery hose 17 may be designed in particular to aspirate and remove excavation suspensions containing excavated soil material. The supply line 19 may be combined at least partially as a bundle of lines, thereby supplying and removing, for example, working fluid for hydraulic equipment, and / or may be configured as an electrical line for power supply and a data line. Fiber optic cables or similar lines may also be used as data lines.

[0033] According to the present invention, the trench cutter 20 is held and vertically positioned by two separate support cables 16, as shown below in conjunction with Figures 3 to 6. To form a suspension means 40 for the trench cutter 20, preferably a first support cable 16a and a separate second support cable 16b can be guided by deflection pulleys 15 on the mast 14 or the tip 13 of the boom. The suspension means 40 has a substantially plate-shaped rocker 50, which is mounted rotatably around a rocker axis 52 in a central region. The first support cable 16a is preferably articulated to a first lateral region of the rocker 50 via a first connector 56a, while the second support cable 16b is preferably connected to a second lateral region of the rocker 50 via a second connector 56b, the second lateral region of the rocker 50 being located opposite the first lateral region of the rocker 50.

[0034] The rocker shaft 52 may be formed by a pivot bolt, and preferably a lower rocking joint 62 having its own rocking axis 63 may be positioned on the pivot bolt. The rocking axis 63 of the rocking joint 62 may preferably be oriented perpendicular to the rocker shaft 52 and perpendicular to the longitudinal direction, i.e., the vertical direction, of the trench cutter 20.

[0035] Using such a suspension device 40, a specific difference in length between the support cables 16a and 16b can be compensated for without undesirably changing the posture of the suspended trench cutter 20, which will be explained in more detail below with reference to Figures 7 to 12.

[0036] Figures 7 and 8 show the normal operating state of the suspension device 40, where two support cables (not shown) terminating at the respective connectors 56a and 56b have the same extension length. Thus, the two connectors 56a and 56b are at the same height level, and the rocker 50 is placed in an intermediate correction position.

[0037] If, during operation, a change in the length of the first support cable 16a occurs relative to the second support cable 16b, for example, due to the stretching of the first support cable, this change in length can be corrected by the suspension device 40 equipped with a rocker 50, which is clearly shown in Figures 9 and 10. The rocker 50 can correct the change in length between the two support cables 16a and 16b by rotating around the rocker axis 52 within a range up to a predetermined maximum displacement, at which point the rocker 50 stops at a stop means 48 located in the lower region of the suspension means 40, as shown in Figures 9 and 10 and Figures 11 and 12.

[0038] By rotating the rocker 50 around the rocker shaft 52, the relative vertical positions of the first connecting device 56a and the second connecting device 56b can be changed, thereby compensating for changes in the length between the two support cables 16a and 16b. Through this compensation, in the suspension of the trench cutter 20 using at least two support cables, small changes in the relative length between the support cables can be prevented from leading to undesirable tilting of the trench cutter 20.

[0039] One possible suspension device 40 according to the present invention will be described in conjunction with Figures 13 and 14. At the tip 13 of the mast or boom, a first support cable 16a and a second support cable 16b are guided to a rocker 50 of the suspension means 40. For the first support cable 16a, two first deflection pulleys 15a are positioned at the tip 13. The two first deflection pulleys 15a are positioned below two second deflection pulleys 15b for the second support cable 16b, although their axial directions are parallel to each other. In this case, the first support cable 16a and the second support cable 16b are positioned front to back in the plane shown as plane BB in Figure 13.

[0040] Alternatively, at least one first deflection pulley 15a and at least one second deflection pulley 15b may be arranged coaxially adjacent to each other, thereby allowing the rocker 50 to be positioned rotated 90° around the vertical axis compared to the arrangement shown in Figures 13 and 14.

[0041] A further embodiment of the suspension device 40 according to the present invention is shown in Figures 15 to 17. The suspension device 40 has a rocker 50 to which a first support cable 16a and a second support cable 16b are attached to the side regions of the rocker 50. The rocker 50 is connected to the cutter frame 22 of the trench cutter via a first support tube element 36a and a second support tube element 36b. Between the first support tube element 36a and the second support tube element 36b, a first oscillating joint 62a and a second oscillating joint 62b may be arranged as a kind of cardan joint. The second support tube element 36b may be rotatably attached to the upper end of the cutter frame 22 via a rotary joint 64.

[0042] The supply hose, not shown in Figures 15-17, is supplied from the side of the carrier device 12 and may be connected to the supply hose 29 in the area of ​​the rocker 50. The supply line from the carrier device (not shown here) is connected to the supply line 28 on the cutter frame 22 of the trench cutter 20. The supply line 28 may be connected to relevant components of the trench cutter 20 on the cutter frame 22, in particular to supply energy.

[0043] A protective frame 30 may be designed on the upper end of the cutter frame 22 to protect the suspension device 40, particularly the supply line 28 and the supply hose 29.

[0044] The arrangement of the partition plate 60 in the suspension device 40 for the trench cutter 20 according to the present invention will be further described in relation to exemplary embodiments shown in Figures 18 to 22. The partition plate 60 may include a first connector 68 on its upper surface to which a supply line 19 for supplying hydraulic and / or electrical energy is connected. Further, a connector for a delivery hose 17 may be provided. A second connector 69 corresponding to the first connector 68 may be provided on the lower surface of the partition plate 60. A supply line 28 may be connected to the second connector 69, which is arranged and designed to supply corresponding components of the trench cutter 20. Furthermore, at least one connector for the supply hose 29 for suspension may be provided on the lower surface of the partition plate 60 to establish a connection to the delivery hose 17 through the partition plate 60.

[0045] In this way, the partition plate 60 can form a defined connection area and connect the supply line 19 or delivery hose 17 to the corresponding supply line 28 or supply hose 29 on the trench cutter 20 via the first connector 68 and the second connector 69.

[0046] According to the illustrated exemplary embodiment, the partition plate 60 may preferably be centrally located below the rocker 50 having a horizontally oriented rocker axis 52. As shown in Figure 22, connectors 56 for at least two support cables may be located on the rocker 50.

Claims

1. A milling drilling device for forming a trench in the ground, - Carrier device (12), - The mast (14) or boom attached to the carrier device (12), - A trench cutter (20) is suspended from the mast (14) or boom of the carrier device (12) by at least two support cables (16), and is adjustable in the vertical longitudinal direction. Equipped with, - The trench cutter (20) includes a longitudinally extending cutter frame (22), the lower end region of the cutter frame having two pairs of cutter wheels (24) rotatably mounted and rotatably driven for excavating the ground, and the upper end region having a suspension means (40) connected to the two support cables (16), - The suspension means (40) includes a rocker (50) rotatably mounted around a rocker shaft (52), the rocker shaft (52) being oriented laterally on a support tube element (36) extending between the rocker (50) and the cutter frame (22), a first support cable (16a) being attached to a first lateral region of the rocker (50), and a second support cable (16b) being attached to a second lateral region of the rocker (50), - The support tube element (36) is provided with at least one joint (58), particularly a swing joint (62) and / or a rotary joint (64), which is spaced apart from the rocker shaft (52). A milling drilling apparatus characterized by the following features.

2. The support cable (16) is attached to the rocker (50) in a deflectible manner via easily detachable connecting means (56), particularly via a pocket-type lock or thimble bolt connection. The milling drilling apparatus according to claim 1, characterized in that...

3. In particular, a stop device (48) for limiting the rotation angle of the rocker (50) is provided on the support pipe element (36). A milling drilling apparatus according to claim 1 or 2, characterized in that it is a milling drilling apparatus.

4. The joint (58) includes a rocking joint (62), the rocking joint (62) is positioned below the rocker shaft (52) and has a rocking shaft (63) that is oriented laterally with respect to the longitudinal direction, preferably laterally with respect to the rocker shaft (52). A milling drilling apparatus according to any one of claims 1 to 3, characterized in that

5. The support tube element (36) is rotatably mounted on the cutter frame (22) by a rotary joint (64) centered on the rotation axis (65) extending in the longitudinal direction. A milling drilling apparatus according to any one of claims 1 to 4, characterized in that

6. The suspension means (40) has a partition plate (60), the upper surface of which includes a first connector (68) for detachably connecting a supply line (19) from the carrier device (12), and the lower surface of which includes a second connector (69) for detachably connecting a feed line (28) to the trench cutter (20). A milling drilling apparatus according to any one of claims 1 to 5, characterized in that

7. The partition plate (60) is positioned on the rocker (50), or above or below the rocker (50), and the partition plate (60) is rotatable relative to the trench cutter (20). The milling drilling apparatus according to claim 6, characterized in that...

8. The partition plate (60) has at least one connector for a delivery hose (17) for supplying and / or removing the suspension. A milling drilling apparatus according to claim 6 or 7, characterized in that it is a milling drilling apparatus.

9. A connection device (56) for one or more additional cables is provided on the suspension means (40). A milling drilling apparatus according to any one of claims 1 to 8, characterized in that

10. A first deflection pulley (15a) is positioned in the tip region of the mast (14) or boom to feed the first support cable (16a) longitudinally to the suspension means (40), and a second deflection pulley (15b) is positioned to feed the second support cable (16b) longitudinally to the suspension device (40), The first deflection pulley (15a) and the second deflection pulley (15b) are arranged side by side with respect to the longitudinal direction, and in particular, the pulley axes of the first deflection pulley (15a) and the second deflection pulley (15b) are coaxial with each other. A milling drilling apparatus according to any one of claims 1 to 9, characterized in that

11. A first deflection pulley (15a) is positioned in the tip region of the mast (14) or boom to feed the first support cable (16a) longitudinally to the suspension means (40), and a second deflection pulley (15b) is positioned to feed the second support cable (16b) longitudinally to the suspension means (40), The first deflection pulley (15a) and the second deflection pulley (15b) are arranged vertically with respect to the longitudinal direction, and in particular, the pulley axes of the first deflection pulley (15a) and the second deflection pulley (15b) are parallel to each other. A milling drilling apparatus according to any one of claims 1 to 9, characterized in that

12. The first support cable (16a) is adjustable in position by the first winch, and the second support cable (16b) is adjustable in position by the second winch. A control device is provided so that the first winch and the second winch can be operated synchronously. A milling drilling apparatus according to any one of claims 1 to 11, characterized in that

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