Ground anchor extraction device and anchor drilling system

Abstract

The ground anchor removal device (2) is designed for removing a ground anchor (4) anchored in the ground and is designed for coupling to an anchor drilling rig (1) which is designed for selectively screwing in or unscrewing the ground anchor (4), is designed for arrangement on a frame (5) of the anchor drilling rig (1) and / or is designed for arrangement on a sliding unit (6) connected to the frame (5) and slidably arranged on the frame (5) for selectively holding a ground anchor insertion unit (7) of a ground anchor insertion device (3) or a ground anchor removal unit (8) of the ground anchor removal device (2), with the ground anchor removal unit (8) for a friction-fit, in particular clamped, connection with the ground anchor (4), wherein a drive unit (9) of the ground anchor removal device (2) is provided for driving the ground anchor removal unit (8) in such a way that the ground anchor (4) is rotated and simultaneously pulled out of the ground.

Description

[0001] The present invention relates to a ground anchor removal device designed for unscrewing a ground anchor embedded in the ground or for unscrewing a ground anchor from the ground. Furthermore, the ground anchor removal device can be coupled to an anchor drilling rig. The present invention also relates to an anchor drilling rig.

[0002] Ground anchor removal devices are known in the prior art. Such devices are used to remove ground anchors that have been driven into the ground. These ground anchors are used, for example, to secure greenhouses or polytunnels in agriculture. For this purpose, the ground anchors are driven into the ground using a ground anchor insertion device and, after the harvest season or when dismantling the polytunnels or greenhouses, are removed using a ground anchor removal device.

[0003] Ground anchor removal devices are relatively complex to operate in practice and always require several operators to manually remove each ground anchor individually. For this purpose, the ground anchor removal device is moved to the ground anchor to be removed, and then each anchor is individually extracted from the ground.

[0004] Installing ground anchors is relatively complex in practice, as a ground anchor insertion device is required to drive the anchors into the ground. A ground anchor removal device is also necessary to remove the anchors after the harvest season.

[0005] Since removing ground anchors from the ground is relatively labor-intensive, some farmers refrain from removing them altogether. Alternatively, attempts are sometimes made to remove the ground anchors manually, for example by plowing the field beforehand. However, this risks damaging the ground anchors and requires considerable effort to retrieve them after plowing.

[0006] Ground anchor removal and insertion devices are only needed at the beginning and end of each harvest season, meaning that for the remainder of the season these systems are simply space-consuming and require a large storage area. This also represents a disadvantage for the user.

[0007] FR 2 807 461 A1 concerns a device for driving stakes into the snow by screwing them in. The stakes are used to mark ski slopes.

[0008] The object of the present invention is now to avoid the aforementioned disadvantages or at least to substantially reduce them.

[0009] The aforementioned problem is solved by a ground anchor turning device according to claim 1.

[0010] The ground anchor removal device according to the invention is designed for unscrewing a ground anchor embedded in the ground or for unscrewing a ground anchor from the ground. Furthermore, the ground anchor removal device is designed for coupling to an anchor drilling rig or is connectable to an anchor drilling rig, or is designed as part of the anchor drilling rig, which can also be removed if necessary.

[0011] The anchor drilling rig, in turn, can be designed to selectively screw in or unscrew the ground anchor. For this purpose, the anchor drilling rig can be retrofitted and / or modified accordingly.

[0012] In one embodiment according to the invention, the ground anchor extraction device is provided for mounting on a frame of the anchor drilling rig. The anchor drilling rig, which can be converted for either insertion or extraction, can have a frame. This frame of the anchor drilling rig can be used both when the anchor drilling rig is used for inserting and when the ground anchor is extracted.

[0013] In a further embodiment of the invention, the ground anchor extraction device is provided for arrangement on a sliding unit connected to the frame and slidably mounted on the frame. The sliding unit can be arranged on the frame in a longitudinally slidable and / or height-adjustable manner. The sliding unit serves, in particular, to selectively hold a ground anchor insertion unit of a ground anchor insertion device or a ground anchor extraction unit of the ground anchor extraction device. Thus, the anchor drilling system, particularly when used for screwing in or removing ground anchors, can be equipped with at least one ground anchor insertion device or at least one ground anchor extraction device, wherein the respective ground anchor insertion units or ground anchor extraction units can be arranged on the sliding unit.

[0014] The ground anchor removal device includes a ground anchor removal unit for frictional connection with the ground anchor. In particular, the ground anchor is clamped in the ground anchor removal unit, preferably at its end and / or with an end region, preferably by frictional connection.

[0015] The aforementioned connection of the ground anchor to the ground anchor unscrewing unit can ensure the torque transmission from the ground anchor unscrewing unit to the ground anchor when the ground anchor is unscrewed from the ground, and thus in particular lead to a pulling movement of the ground anchor out of the ground.

[0016] It is understood that the ground anchor can be removed from the ground in such a way that it can be pulled and rotated simultaneously.

[0017] The advantage of the ground anchor extraction device according to the invention can be seen in the fact that it can be arranged on existing anchor drilling systems, in particular as a "retrofit option".

[0018] The ground anchor extraction device can particularly preferably be arranged on existing anchor drilling rigs already in use in the field for driving ground anchors, preferably as an interchangeable component for the ground anchor extraction unit. In this way, the anchor drilling rig can be used economically for the user to selectively drive and extract ground anchors.

[0019] According to the invention, the anchor drilling rig can thus be used simultaneously for driving (ground) anchors into the ground or, after appropriate conversion, for driving (ground) anchors out. This is particularly advantageous because it eliminates the need for separate systems for driving and removing anchors.

[0020] A retrofit of the anchor drilling rig can be achieved, for example, by replacing the ground anchor insertion devices with the ground anchor extraction devices or vice versa.

[0021] The anchor drilling system includes at least one ground anchor insertion device and at least one ground anchor removal device, although both devices do not necessarily have to be arranged on the frame when using the anchor drilling system, but they may be.

[0022] If the anchor drilling rig is used, for example, for extracting (ground) anchors, the ground anchor extraction device(s) is / are preferably arranged on the frame, and the ground anchor insertion device(s) is / are preferably stored separately. If the anchor drilling rig is to be used for installing ground anchors, then the ground anchor insertion device(s) is / are preferably arranged on the frame, and the ground anchor extraction device(s) is / are preferably stored separately. It is also possible, in principle, to have both the ground anchor extraction device(s) and the ground anchor insertion device(s) arranged on the frame of the anchor drilling rig, with one or the other type of device being used.

[0023] According to the invention, it provides an efficient, economical and space-saving method for a system for screwing in and out ground anchors.

[0024] According to the invention, the ground anchor removal device has a drive unit for driving the ground anchor removal unit in such a way that the ground anchor is rotated and simultaneously pulled out of the ground. The drive unit can, in particular, also be arranged at least indirectly on the displacement unit and, in particular, interact with the ground anchor removal unit of the ground anchor removal device. The drive unit can, in particular, transmit a torque to the ground anchor removal unit, which in turn can transmit the torque to the ground anchor embedded in the ground, causing it to rotate.

[0025] In addition to rotating the ground anchor, the drive unit can also be designed to pull the ground anchor out of the ground. For this purpose, the ground anchor extraction unit can be arranged on the frame in a height-adjustable or height-sliding manner, particularly via the preferably height-adjustable sliding unit, so that the ground anchor can also be pulled out of the ground by "pulling upwards" the ground anchor extraction unit.

[0026] In particular, the drive unit can be designed such that the ground anchor is only rotated and / or pulled when it is (still) in contact with the ground. This significantly increases workplace safety by ensuring that the ground anchor is only moved while it is still in the ground. If necessary, this requirement can be omitted, as external operators can preferentially position the ground anchor extraction unit on the ground anchor in such a way that rotation is only initiated when the unit is firmly connected to the anchor for torque transmission. Once the ground anchor has been removed from the ground, rotation of the extraction unit can then be stopped, preferably immediately, by external operators.

[0027] Furthermore, in another preferred embodiment, the ground anchor extension unit is provided with a connecting element for at least end-to-end and / or partial engagement of the ground anchor and for friction-fit clamping of the ground anchor. In particular, the ground anchor is clamped at its end in the connecting element, preferably so that the torque can be transmitted from the ground anchor extension unit to the ground anchor. The corresponding coupling between the drive motor and the ground anchor can then be ensured, among other things, by the connecting element.

[0028] Furthermore, the connecting element enables the ground anchor to be connected to the ground anchor screw-in unit in a simple and quick manner – in particular by means of clamping and / or by means of a friction-fit and / or positive-locking connection. To ensure a secure connection, the connecting element can be arranged at least partially around the end region of the ground anchor, especially the end face of the ground anchor. For this purpose, the connecting element can, in particular, have four side walls, which preferably surround the ground anchor, which in particular has a cross-section that is at least partially circular, when closed.

[0029] The connecting element can preferably be attached to the ground anchor and then connected to the ground anchor.

[0030] Preferably, the connector is at least partially hinged. In particular, the connector can be designed such that two elements of the connector can be opened or hinged relative to each other. Specifically, the connector has a quick-release fastener for closing the connector in the folded position. The quick-release fastener can, in particular, have a tension band with a locking hook. Alternatively or additionally, the quick-release fastener can also have a lever lock with a corresponding counterpart for easy opening and closing of the connector.

[0031] In another, equally preferred embodiment, the quick-release fastener can also be spring-loaded and / or have a spring-loaded locking mechanism.

[0032] Ultimately, the quick-release fastener allows for easy opening and closing at the point where the ground anchor has been driven into the ground. In practice, it is preferable to be able to connect to the ground anchor as quickly as possible in order to remove the ground anchors from the ground efficiently across the entire field. A quick-release fastener offers a particularly useful solution for this, enabling fast and easy connection and disconnection.

[0033] The quick-release fastener can be arranged on at least one of the side walls, in particular on two side walls or on a top surface, and preferably on at least one side wall. The movement to close the quick-release fastener can therefore be, in particular, at least substantially horizontal or at least substantially vertical with respect to the ground. A vertical closing movement of the quick-release fastener allows, in particular, easy operation and preferably ensures reliable accident prevention, especially compliance with accident prevention regulations.

[0034] In particular, the connector features a limiter to restrict its opening angle. Preferably, the limiter can be designed as a stop for the quick-release fastener. This ensures that the quick-release fastener cannot be fully opened and that the opening angle of the connector is ultimately limited. This is particularly advantageous because it prevents the connector from unintentionally opening fully when attached to the ground anchor. Instead, it provides the user with just enough clearance to easily connect the connector to the ground anchor. Preferably, the connector can only be opened and closed within the limited opening angle. The limiter thus also simplifies the use of the connector.

[0035] In a further preferred embodiment of the invention, the connecting element is articulated on a holding unit of the ground anchor extraction device. In particular, the holding unit can be rigidly connected to the sliding unit of the anchor drilling rig. The articulated mounting allows the connecting element to be positioned not in line with or on an axis with the ground anchor, but within a predetermined radius in order to be coupled to the ground anchor. Specifically, the ground anchor can be positioned at a maximum distance of at least 10 cm, preferably at least 15 cm, from the rest position of the connecting element. This creates a so-called "search area" around the position of the installed ground anchor.

[0036] Preferably, the holding unit can be height-adjustable together with the sliding unit during the use of the anchor drilling system.

[0037] If required, the holding unit can also be arranged to be longitudinally displaceable on the frame together with the sliding unit. Longitudinal displacement of the sliding unit and the holding unit can be carried out, in particular, before use of the anchor drilling rig, while height adjustment of the holding unit together with the sliding unit is carried out, in particular, during use, especially when the ground anchor is pulled out of the ground, since this increases the distance between the ground and the holding unit, and therefore the holding unit is preferably arranged to be height-adjustable on the frame of the anchor drilling rig.

[0038] The holding unit preferably comprises a retaining strut that is oriented at least substantially vertically to the ground. The retaining strut can, in particular, be arranged or aligned at least substantially longitudinally to the ground anchor, the ground anchor being inserted into the ground, in particular, vertically to the ground surface.

[0039] In particular, the drive unit and / or a motor of the drive unit can preferably be mounted directly, and the ground anchor turning unit at least indirectly, in a receptacle of the holding unit. In particular, a motor is arranged in this receptacle. Preferably, the receptacle has a bottom surface facing the ground and / or at least one, in particular two, side wall(s) for arranging the motor.

[0040] The mounting bracket can be arranged on the support strut in a height-adjustable manner, allowing the distance between the drive motor and the floor to be changed. Height adjustment of the mounting bracket is performed primarily before use of the system and preferably not during operation. This prevents the mounting bracket from shifting, particularly in conjunction with the support unit and the support strut.

[0041] A drive shaft can be provided for the articulated mounting of the connecting element on the ground anchor extension unit. The drive shaft can, in particular, enable the aforementioned search area for the ground anchor. Specifically, the ground anchor can be arranged at a maximum distance of at least 10 cm, preferably at least 15 cm, from the longitudinal axis of the drive shaft in its rest position. The drive shaft can be moved in various directions, preferably resulting in a maximum diameter of at least 20 cm, preferably at least 30 cm, for the search area within which the ground anchor can be located.

[0042] In particular, the driveshaft can have a ball joint at each end or face. The driveshaft can then be articulated, in particular via at least one ball joint, to the connecting element and / or the mounting and / or the engine. Most preferably, the driveshaft has two ball joints, one of which is coupled to the engine and the other to the connecting element, at least indirectly, and in particular directly.

[0043] For coupling to the ball joint, connecting pins can be provided. Particularly preferably, a connecting pin that can be coupled to the drive shaft, preferably arranged on a top surface of the connecting element, can be provided for connection to the drive shaft and / or to the ball joint of the drive shaft. Alternatively or additionally, a further connecting pin can be provided for at least indirect connection to the motor, wherein the further connecting pin associated with the motor can also be connected to the ball joint.

[0044] In a further preferred embodiment, the connecting element has a hinge for opening. In particular, the hinge is arranged between two clamping elements of the connecting element for clamping the ground anchor. The hinge then ensures that the two clamping elements, which are in particular rigid, can be opened relative to each other. In particular, at least one clamping element can have at least one, preferably replaceable, jaw for clamping the ground anchor. In particular, each clamping element preferably has at least one jaw. Particularly preferably, each clamping element has two side walls, in particular arranged at least substantially at right angles to each other, with each side wall preferably having an inner, in particular replaceable, jaw. Accordingly, four jaws are particularly preferably provided per connecting element.The ground anchor can then be clamped and / or held between the jaw chucks. A particular advantage of the jaw chucks is that they are interchangeable. If, for example, ground anchors with a different diameter are used, the jaw chuck can be adapted to the corresponding outer diameter of the ground anchors. Therefore, the ground anchor turning unit can also be used for ground anchors with different outer dimensions.

[0045] The connecting element preferably has a top surface, which can be coupled to the drive shaft, with at least one through-opening on the top surface for checking the arrangement of the ground anchor within the connecting element. The through-opening can therefore also be referred to as a viewing window of the connecting element. The top surface is adjacent to the side walls of the connecting element. Opposite the top surface is, in particular, the end face of the connecting element through which the ground anchor is guided, at least partially, for clamping in the connecting element. The through-opening thus allows operating personnel to check whether the ground anchor is optimally arranged in the connecting element. This check also ensures that the jaws are in direct contact with the outer diameter of the ground anchor and thus preferably clamp the ground anchor securely.

[0046] As explained above, a connecting pin for attachment to the drive shaft, in particular the ball joint of the drive shaft, and / or for at least indirect attachment to the engine can preferably also be provided on the upper side of the connecting means.

[0047] In another preferred embodiment, the drive unit comprises a hydraulic motor and a hydraulic control unit. Accordingly, the ground anchor removal unit can be operated hydraulically. The hydraulic motor can preferably also be configured to selectively drive the ground anchor insertion unit. Thus, the drive motor can be assigned to either the ground anchor removal unit or the ground anchor insertion unit, eliminating the need for separate drive motors for each. According to the invention, the motor can also be referred to as a drive motor or vice versa. A hydraulic drive for the ground anchor removal unit enables, in particular, continuous, low-wear, and maintenance-friendly operation, and especially a wear-resistant design for the entire ground anchor removal device.

[0048] As previously explained, the motor of the drive unit can preferably have an additional connecting pin for attachment to the drive shaft, in particular to the additional ball joint of the drive shaft. Thus, the motor can be coupled to the drive shaft and therefore to the connecting element, particularly indirectly via the connecting pin.

[0049] The hydraulic control unit is particularly preferably also designed to drive the hydraulic motor for the ground anchor screw-in unit. Preferably, the hydraulic unit can be switched between operation for the ground anchor screw-out unit and the ground anchor screw-in unit. In particular, switching operation requires a change in the flow direction of the hydraulic fluid. A manual switch can be provided for this purpose. In another alternative, also preferred embodiment, the hydraulic control unit can also be electronically actuated. In this case, switching via a manual operation by an operator using a hand switch or lever can be eliminated.

[0050] Accordingly, the hydraulic unit can preferably be operated manually and / or electronically. Electronic operation of the hydraulic control unit is particularly preferred, especially since it can then be operated with minimal risk of errors. However, with appropriate training of the personnel, manual operation of a hydraulic control unit, preferably designed to drive both the ground anchor removal unit and the ground anchor insertion unit, is also possible. Alternatively or additionally, it can also be provided that different hydraulic control units are available for the ground anchor removal unit and the ground anchor insertion unit, so that, in particular, switching between the ground anchor insertion and removal units is unnecessary.

[0051] Furthermore, the present invention relates to an anchor drilling system for selectively screwing in or out of at least one ground anchor from or into the ground according to claim 8.

[0052] The anchor drilling system according to the invention has at least one ground anchor unscrewing device and at least one ground anchor screwing device for screwing in the ground anchor.

[0053] The ground anchor extraction device according to the invention for the anchor drilling rig is designed for extracting a ground anchor embedded in the ground and for connecting it to the anchor drilling rig. The ground anchor extraction device according to the invention for the anchor drilling rig comprises a ground anchor extraction unit for a friction-fit, in particular clamped, connection with the ground anchor.

[0054] In particular, the ground anchor unscrewing device is designed according to one of the aforementioned embodiments.

[0055] Furthermore, the anchor drilling system comprises a frame and at least one sliding unit arranged slidably on the frame for the respective optional mounting of a ground anchor insertion unit of the ground anchor insertion device or a ground anchor removal unit of the ground anchor removal device.

[0056] In another preferred embodiment, the sliding unit can hold both the ground anchor insertion unit and the ground anchor extraction unit. The anchor drilling rig can therefore preferably be equipped with either the ground anchor extraction unit or the ground anchor insertion unit, or with both. All of the aforementioned embodiments are fundamentally possible.

[0057] The shifting unit can be arranged on the frame in a way that allows for longitudinal and height adjustment. Longitudinal shifting of the unit occurs, in particular, before the anchor drilling rig is used, especially depending on the position of the ground anchors. Preferably, the anchor drilling rig has two ground anchor removal devices or two ground anchor insertion devices, which are arranged at least substantially the same distance from the center of the frame. Thus, the anchor drilling rig can preferably insert or remove two ground anchors simultaneously.

[0058] According to the invention, the anchor drilling system also includes a drive unit for selectively driving either the ground anchor extraction unit or the ground anchor insertion unit. Accordingly, either several drive units can be provided for the ground anchor extraction unit and the ground anchor insertion unit, or a single drive unit can be provided that selectively drives either the ground anchor extraction unit or the ground anchor insertion unit.

[0059] It is understood that all the aforementioned embodiments and / or advantages and / or preferred features of the ground anchor extraction unit can apply equally to the anchor drilling rig without requiring further explanation. Likewise, the statements regarding the anchor drilling rig can also be applied to the ground anchor extraction device without requiring further explicit explanation.

[0060] The anchor drilling system according to the invention is characterized by the fact that, particularly after appropriate conversion, it can be used either for driving in or driving out ground anchors. Thus, a single system can be used to insert and remove ground anchors from the ground. In the prior art, only different systems are known that can either drive the ground anchor into the ground or remove it from the ground. The invention now offers the advantage that different systems for ground anchoring using ground anchors are not required.

[0061] A further advantage is that when using the anchor drilling rig for anchor removal, the exact same distances between the anchor drills can be maintained as those used for installing the ground anchors. Accordingly, a ground anchor removal device or a ground anchor insertion device can be arranged at each of the respective end faces of the frame, with the distance between these devices then also defining the distance between the ground anchors themselves. This distance can then also be preferably maintained when removing the ground anchors.

[0062] In a particularly preferred embodiment, the drive unit of the anchor drilling system according to the invention is designed to drive the ground anchor extraction unit such that the ground anchor is pulled out of the ground and simultaneously rotated. Preferably, the ground anchor is only rotated and / or pulled when it is in contact with the ground or still embedded in the ground. This increases operational safety. Alternatively, the ground anchor or the drive unit can also be rotated during the entire driving process, particularly even when the ground anchor is outside the ground.

[0063] Alternatively or additionally, the drive unit can be designed to drive the ground anchor screw-in unit in such a way that the ground anchor is pressed into the ground and simultaneously rotated, preferably only being rotated once it has made contact with the ground. This also increases workplace safety.

[0064] As previously explained, the frame can preferably be optionally equipped with either two ground anchor extension devices or at least two ground anchor insertion devices. In particular, the respective devices are arranged at the end faces of the frame. Specifically, each ground anchor insertion device and each ground anchor extension device is associated with a sliding unit, wherein, preferably, each ground anchor insertion unit or each ground anchor extension unit is slidably mounted on the frame via the respective sliding unit, in particular longitudinally and / or vertically adjustable. The sliding unit adjusts its height (i.e., distance from the ground) particularly when the ground anchor is pressed into or pulled out of the ground, which also results in a change in height of the sliding unit and consequently of the respective ground anchor devices (i.e., ground anchor extension device or ground anchor insertion device).

[0065] The sliding unit is therefore particularly preferred if it is height-adjustable and longitudinally movable on the frame.

[0066] In a further preferred embodiment, a holding unit for the ground anchor extraction device is arranged on the displacement unit, in particular wherein the holding unit is rigidly connected to the displacement unit of the anchor drilling rig. Alternatively or additionally, the holding unit may have a retaining strut, in particular oriented substantially vertically to the ground. The retaining strut can then be displaced, in particular relative to the displacement unit. Furthermore, the holding unit may also be designed to support the ground anchor insertion device.

[0067] Furthermore, in a further preferred embodiment of the invention, it is provided that when using the anchor drilling system for drilling out the ground anchor, the motor is preferably arranged or mounted directly and the ground anchor drilling unit is at least indirectly mounted on a receptacle of the holding unit, wherein, preferably, the receptacle is fixed and preferably slidably arranged on the holding strut.

[0068] Alternatively or additionally, it can be provided that when using the anchor drilling system for screwing in the ground anchor, the motor is preferably mounted directly and the ground anchor removal unit is mounted at least indirectly on a receptacle of the holding unit, wherein, preferably, the receptacle is fixedly and preferably slidably arranged on the holding strut.

[0069] Particularly preferably, the mounting can serve to accommodate the motor, which is coupled either to the ground anchor extraction unit or the ground anchor insertion unit and can thus be used to drive either the ground anchor extraction unit or the ground anchor insertion unit, thereby eliminating the need to keep different drive motors. However, different drive motors can also be used if required.

[0070] In a particularly preferred embodiment, at least one support is provided on the frame for bracing against the ground. The support can, in particular, be designed as a skid. Particularly preferably, several supports are provided across the width of the frame. The supports can be arranged on the frame in a height-adjustable manner and thus adapt, in particular, to uneven ground.

[0071] It is also particularly preferred that the frame be collapsible. This allows, in particular, the transport of the anchor drilling rig along regular transport routes, such as roads or the like. It also enables space-saving storage of the anchor drilling rig, for example, in a barn on a farm or the like. In particular, the frame can have at least two collapsible frame sections. The frame sections can be collapsible, in particular, by means of a hinge or the like.

[0072] The anchor drilling rig is preferably mobile. For this purpose, the anchor drilling rig may, in particular, have wheels and / or a chassis for transport. The anchor drilling rig is preferably movable and / or attachable to a vehicle. Accordingly, the anchor drilling rig can be used either as a rear-mounted or front-mounted attachment of an agricultural vehicle. A method of operation of the anchor drilling rig makes it possible to remove the ground anchors, which may be distributed across an entire field, from the entire field, thus ensuring an efficient process for screwing in and removing the ground anchors.

[0073] Furthermore, it is expressly pointed out that all the aforementioned and subsequent intervals include all intermediate intervals and individual values ​​contained therein, and that these intermediate intervals and individual values ​​are to be regarded as essential to the invention, even if these intermediate intervals or individual values ​​are not specifically specified in detail.

[0074] Further features, advantages, and applications of the present invention will become apparent from the following description of exemplary embodiments with reference to the drawing and the drawing itself. All features described and / or illustrated, individually or in any combination, constitute the subject matter of the present invention, irrespective of their compilation in the claims or their cross-reference.

[0075] It shows: Fig. 1 a schematic perspective representation of an anchor drilling system according to the invention with ground anchor extraction devices according to the invention, Fig. 2 a schematic perspective representation of an anchor drilling system according to the invention with ground anchor screw-in devices according to the invention, Fig. 3 a schematic perspective representation of a ground anchor turning unit according to the invention, Fig. 4 a schematic perspective representation of a connecting element according to the invention, Fig. 5 a schematic side view of the in Fig. 4 connecting means according to the invention shown, Fig. 6 another schematic side view of the in Fig. 4 connecting means according to the invention shown, Fig. 7 a schematic sectional view along section VII-VII of the in Fig. 6 shown connecting means, Fig. 8 a schematic perspective representation of a drive shaft according to the invention, Fig. 9 a schematic perspective representation of a ball joint of a drive shaft according to the invention, Fig. 10A a schematic representation of a drive unit according to the invention in a first state, Fig. 10B another schematic representation of the in Fig. 10a drive unit shown in a second state and Fig. 11 a schematic perspective view of a side wall of a connecting element according to the invention.

[0076] Fig. Figure 1 shows an anchor drilling rig 1 with ground anchor extraction devices 2 arranged on it. The anchor drilling rig 1 has a frame 5. The ground anchor extraction devices 2 are arranged on the frame 5, in particular height-adjustable and / or at least partially longitudinally displaceable. The in Fig. The ground anchor removal devices 2 shown in Figure 1 are designed for removing a ground anchor 4 anchored in the ground. The ground anchor 4 is also in Fig. 1 shown, but is also from Fig. 3 visible.

[0077] It is understood that in further preferred embodiments of an anchor drilling rig 1, only one ground anchor extraction device 2 may be provided. Ultimately, the ground anchor extraction device 2 is provided for coupling to an anchor drilling rig 1, which is designed for selectively screwing in or unscrewing the ground anchor 4. Fig. Figure 1 merely shows that the anchor drilling rig 1 is designed for unscrewing the ground anchor 4 using the ground anchor unscrewing devices 2. The anchor drilling rig 1 can also be configured, by appropriate modification, to screw in the ground anchor 4. For this purpose, the ground anchor screwing devices 3 can be attached to the anchor drilling rig 1, in particular by exchanging the ground anchor unscrewing devices 2 with the ground anchor screwing devices 3 and / or by attaching the ground anchor screwing devices 3 to the frame 5 in addition to the ground anchor unscrewing devices 2.

[0078] The Fig. Figure 2 shows an anchor drilling rig 1, which has ground anchor insertion devices 3 for screwing ground anchors 4 into the ground. It is understood that the anchor drilling rig 1 can also have only one ground anchor insertion device 3. The ground anchor insertion devices 3 can also be arranged on the frame 5, in particular in a height-adjustable and / or longitudinally displaceable manner.

[0079] Fig. Figure 1 also shows that a sliding unit 6 – in the illustrated embodiment, two sliding units 6 – is arranged on the frame 5. The sliding unit 6 can, in particular, be arranged to be slidably on the frame 5, especially height-adjustable and / or longitudinally displaceable. The sliding unit 6 is connected to the frame 5. The sliding unit 6 can be designed to optionally hold a ground anchor screw-in unit 7, a ground anchor screw-in device 3, or a ground anchor unscrewing unit 8 of the ground anchor unscrewing device 2. Fig. 1 and Fig. Figure 2 shows that either ground anchor insertion devices 2 or ground anchor removal devices 3 are arranged on the displacement units 6. It is understood that the anchor drilling rig 1 can have at least one displacement unit 6.

[0080] Furthermore, the Fig. 1, that a ground anchor swivel unit 2 is provided for a friction-fit, in particular clamped, connection with the ground anchor 4. In particular, the ground anchor 4 can be clamped to the ground anchor swivel unit 8.

[0081] A drive unit 9 of the ground anchor removal device 2 can be designed to drive the ground anchor removal unit 8 in such a way that the ground anchor 4 is rotated and simultaneously pulled out of the ground for removal.

[0082] The drive unit 9 can optionally also be designed to drive the ground anchor screw-in device 3.

[0083] In particular, the drive unit 9 enables torque to be transmitted to the ground anchor extraction unit 8, which in turn can transmit the torque to the ground anchor 4. It is understood that the drive unit 9 can be configured such that, in particular, the torque can be transmitted to the ground anchor 4 via the ground anchor extraction unit 8.

[0084] The ground anchor 4 can be pulled out of the ground by the drive unit 9 being simultaneously configured to adjust the height (i.e., its distance from the ground) of the ground anchor extraction unit 8. In particular, the drive unit 9 can be configured to adjust the height (i.e., its distance from the ground) of the sliding unit 6, to which the ground anchor extraction device 2 can be attached. In this way, the sliding unit 6 can be pulled upwards to remove the ground anchor 4, which also pulls the ground anchor extraction unit 8 upwards.

[0085] The Fig. Figure 3 shows a connecting agent 10, which is also in Fig. Figure 1 shows the connecting element 10, which is part of the ground anchor extraction unit 8. The connecting element 10 can be designed to receive the ground anchor 4 at least at its end and to frictionally clamp the ground anchor 4. In particular, the connecting element 10 serves to easily arrange the ground anchor 4, whereby the ground anchor 4 can be inserted into the connecting element 10 at least with its end face. In this context, the connecting element 10 can be designed such that both the pulling motion and the rotational motion can be transmitted from the ground anchor extraction unit 8 to the ground anchor 4. In particular, the ground anchor 4 is inserted into an opening in the connecting element 10 that faces at least substantially towards the ground.

[0086] The connecting agent 10, as it is in Fig. As shown in section 3, details are provided in the Fig. 4 to 6 can be seen. This shows Fig. 4 the connecting element 10 in the closed state, wherein the Fig. 5 and Fig. 6 different side views of the in Fig. The four connecting elements shown are 10. Fig. Figure 7, however, shows the section view along section VII-VII. Fig. 6.

[0087] The in the Fig. The connecting element 10 shown in Figures 3 to 6 can be designed to be hinged, at least in part. For closing and, in particular, for fixing the connecting element 10 in the closed position, a quick-release fastener 11 can be provided, especially for closing the connecting element 10 in the folded position. The quick-release fastener 11 can have a locking hook and / or corresponding clamping elements. In further embodiments not shown in detail, the quick-release fastener 11 can also be spring-loaded.

[0088] The quick-release fastener 11 can be arranged at different positions on the connecting element 10. In the illustrated embodiment, the movement to open the quick-release fastener 11 is primarily horizontal – relative to the ground. In other embodiments, not shown, the opening movement to open the quick-release fastener 11 can also be vertical (relative to the ground). For this purpose, the quick-release fastener 11 can be arranged, at least partially, with one end on a top surface 23 of the connecting element 10 facing the drive motor 15 or the drive unit 9.

[0089] The quick-release fastener 11 can be used for the easy arrangement of the ground anchor 4 in the connector 11, ensuring a quick, efficient and safe closure of the connector 10.

[0090] In the Fig. Figures 3 to 6 do not specify in detail that the opening width of the quick-release fastener 11 can be limited. Fig. Figure 11 schematically shows a side wall 22 of the connecting element 11, on which a limiter 12 is provided to limit the opening width of the quick-release fastener 11. Such a limiter 12, designed as a stop, can also be used in the Fig. The embodiments shown in Figures 3 to 6 are generally provided. Ultimately, the limiter 12 can be provided to limit the opening angle of the connecting element 10, serving as a stop for the quick-release fastener 11.

[0091] The connecting element 10 can be articulated on a holding unit 13 of the ground anchor turning device 2. This holding unit 13 is shown schematically in the Fig. Figure 1 shows that, in particular, the holding unit 13 can be rigidly connected to the displacement unit 6 of the anchor drilling rig 1. In the figure shown in Fig. In the embodiment shown in Figure 1, the holding unit 13 has a retaining strut 14 that is oriented at least substantially vertically to the ground. The holding unit 13 can, in particular, serve to couple the ground anchor swivel device 2 to the sliding unit 6.

[0092] The holding unit 13 can have a receptacle 16. The receptacle 16 is in Fig. Figure 1 shows the mounting. The receptacle 16 can be used to mount the drive unit 9 or parts of the drive unit 9, such as a motor 15 of the drive unit 9. The mounting 16 can have a base and side walls projecting from the base. The mounting 16 can be fixed and preferably height-adjustable on the support strut 14. Height adjustment of the mounting 16 is carried out, in particular, before commissioning the anchor drilling rig 1. This makes it possible to drive different lengths of ground anchors 4 out of the ground using the same type of ground anchor extraction device 2, whereby the different lengths of the ground anchors 4 can be compensated for by adjusting the height of the mounting 16 and, consequently, the ground anchor extraction device 8.

[0093] For the articulated mounting of the connecting element 10, a drive shaft 17 of the ground anchor turning unit 8 can be provided. This drive shaft 17 is located in the Fig. 1 not shown in detail. The drive shaft 17 can be articulated to the connecting element 10 and / or the receptacle 16 and / or the motor 15. The articulated connection to the drive shaft 17 can be ensured by ball joints 18 of the drive shaft 17. These ball joints 18 are located in the Fig. 8 and for a further embodiment in detail in Fig. 9 shown.

[0094] The articulated mounting, in particular via the drive shaft 17, makes it possible for the ground anchor 4 to be arranged in a certain “search area” around the ground anchor 4, wherein this search area can have a diameter of at least 20 cm, in particular 30 cm.

[0095] Fig. Figure 4 shows a hinge 19 for the connecting element 10, wherein the hinge 19 can ensure that the connecting element 10 can be opened. For this purpose, the hinge 19 can be arranged between two clamping elements 20 of the connecting element 10 for clamping the ground anchor 4. Each clamping element 20 can be formed by at least one side wall 22, in particular two side walls 22. Fig. Figure 7 shows that at least one clamping element 20 has at least one, in particular replaceable, jaw chuck 21 for clamping the ground anchor 4. It further shows Fig. 7, that the jaw chucks 21 can ultimately be replaced in such a way that the connecting element 10 can adapt to different outer diameters of the ground anchor 4.

[0096] In particular, each clamping element 20 can have two side walls 22, which are arranged at least substantially at right angles to each other. Preferably, each side wall 22 can have an internal, in particular replaceable, jaw chuck 21.

[0097] It is not shown that a single jaw chuck 21 would also be sufficient for clamping the ground anchor 4.

[0098] In Fig. Figure 4 shows that the connecting element 10 has a top surface 23. The top surface 23 forms the end face of the connecting element 10, to which the side walls 22 are attached downwards. The top surface 23 can ultimately be positioned opposite the receiving opening for the ground anchor 4. Furthermore, the top surface 23 can be coupled to the drive shaft 17. Fig. Figure 4 further shows that the upper surface 23 has a through-opening 24 for checking the arrangement of the ground anchor 4 in the connector 10. The through-opening 24 can thus be considered a viewing window. This allows external operating personnel to check the position and seating of the ground anchor 4 in the connector 10 in a relatively simple manner.

[0099] Furthermore, it shows Fig. 4, that a connecting pin 25 is arranged on the upper surface 23. This connecting pin 25, in turn, can be arranged on the drive shaft 17. In particular, the connecting pin 25 serves for arrangement on the ball joint 18 of the drive shaft 17, especially for receiving it in the ball joint 18. For this purpose, the ball joint 18 can have a receiving area 32 in which, in particular, the connecting pin 25 is arranged in a form-fit and / or friction-fit manner.

[0100] The connecting pin 25 can therefore be arranged at least indirectly on the motor 15.

[0101] In Fig. 3 is / are the drive shaft 17 and therefore also the ball joints 18, not shown in detail. Fig. Figure 3 shows, however, that the drive motor 15 can also have a connecting pin 27, which in particular can also have an external profile for receiving in the ball joint 18 of the drive shaft 17, in particular wherein the further connecting pin 27 can be arranged in the receiving area 32 of the ball joint 18 in a form-fitting and / or friction-fitting manner.

[0102] Fig. Figure 9 shows that the receiving area 32 has an internal profile which can be designed to complement an external profile on the respective connecting pin 25, 27. An external profile of the connecting pin 25, 27, at least partially, is shown schematically in the Fig. 3 shown.

[0103] In the Fig. 10A and Fig. Figure 10B shows different states for the drive unit 9, whereby the same drive unit 9 can be used to drive the ground anchor removal device 2 and the ground anchor insertion device 3.

[0104] Furthermore, the Fig. 10A, that the drive unit 9 comprises a hydraulic motor 15 and a hydraulic control unit 26, in particular wherein the hydraulic motor 15 is also designed to selectively drive the ground anchor screw-in unit 7. That the motor 15 can also drive the ground anchor screw-in unit 7 is shown schematically in the Fig. Figure 10B shows that the motor 15 can in turn drive the ground anchor turning unit 8. Fig. 10A.

[0105] The hydraulic control unit 26 can also be configured to drive the hydraulic motor 15 for the ground anchor insertion unit 7. Preferably, the hydraulic control unit 26 can be switched between operation for the ground anchor removal unit 7 and the ground anchor removal unit 8. Such a switch 30 is shown schematically in the Fig. 10A and Fig. 10B is shown.

[0106] Furthermore, the invention relates to an anchor drilling rig 1, as schematically depicted in the Fig. 1 and Fig. 2 is shown. Fig. 1 and Fig. Figure 2 shows that the anchor drilling rig 1 is designed for selectively screwing or unscrewing at least one ground anchor 4 from or into the ground. For this purpose, the anchor drilling rig 1 can be equipped with ground anchor unscrewing device(s) 2 and ground anchor screwing device(s) 3. In particular, the anchor drilling rig 1 has at least one ground anchor unscrewing device 2 according to one of the aforementioned embodiments and at least one ground anchor screwing device 3 for screwing the ground anchor 4 into the ground.

[0107] Furthermore, the anchor drilling rig 1 also includes a frame 5. The frame 5 can be constructed using a plurality of longitudinal and / or transverse struts. Ultimately, the frame 5 serves to arrange and support the ground anchor extraction device 2 and, if required, the ground anchor insertion device 3. In addition, a sliding unit 6, slidably mounted on the frame 5, can be arranged for the optional mounting of a ground anchor insertion unit 7 of the ground anchor insertion device 3 or a ground anchor extraction unit 8 of the ground anchor extraction device 2.

[0108] In further embodiments not shown, a ground anchor removal unit 8 and a ground anchor insertion unit 7 can be arranged on the sliding unit 6. The ground anchor insertion unit 7 and the ground anchor removal unit 8 can be arranged on the frame 5 in a height-adjustable manner via the sliding unit 6 – specifically during operation of the anchor drilling rig 1. Furthermore, the distance of the ground anchor insertion unit 7 or the ground anchor removal unit 8 from the center point of the frame 5 can be changed before use of the anchor drilling rig 1 by a longitudinal displacement of the sliding unit 6 on the frame 5.

[0109] The anchor drilling system 1 can include a drive unit 9 for optionally driving the ground anchor extraction unit 8 or the ground anchor insertion unit 7.

[0110] In principle, it is also possible to have different drive units 9 for the ground anchor extraction unit 8 or the ground anchor insertion unit 7. However, it is particularly preferred that the same drive unit 9 can be used for both the ground anchor extraction unit 8 and the ground anchor insertion unit 7, so that, in particular, only the ground anchor extraction unit(s) 8 and the ground anchor insertion unit(s) 7 need to be exchanged to convert the anchor drilling rig 1 – in particular without having to exchange the drive motor 15 or the hydraulic control unit 26.

[0111] As previously explained, the drive unit 9 can be configured to drive the ground anchor extraction unit 8 such that the ground anchor 4 is pulled out of the ground and simultaneously rotated. For this purpose, the drive unit 9 can transmit a torque to the ground anchor extraction unit 8. Pulling the ground anchor 4 out of the ground is achieved, in particular, by adjusting the height of the sliding unit 6 on the frame 5. Not shown is the fact that the ground anchor 4 is only rotated once it has made contact with the ground.

[0112] It has also already been explained that the drive unit 9 is designed to drive the ground anchor screw-in unit 7 such that the ground anchor 4 is pressed into the ground and simultaneously rotated, preferably only being rotated once it has made contact with the ground. This ensures that the ground anchor screw-in unit 7 is installed in a manner compliant with accident prevention regulations.

[0113] The Fig. 1 and Fig. Figure 2 shows that at least two ground anchor extension devices 2 or at least two ground anchor insertion devices 3 are optionally arranged on the frame 5, in particular wherein each ground anchor insertion device 3 and each ground anchor extension device 2 is assigned a displacement unit 6. Preferably, each ground anchor insertion device 7 or each ground anchor extension device 8 is given a displacement option – namely via the respective displacement unit 6. This displacement unit 6 can in particular enable longitudinal displacement and / or height adjustment on the frame 5.

[0114] The Fig. Figure 10a shows that the drive unit 9 comprises a hydraulic motor 15 and a hydraulic control unit 26. As previously explained, the hydraulic motor 15 is designed to selectively drive the ground anchor insertion unit 7 and the ground anchor removal unit 8. The hydraulic control unit 26 can also be configured to drive the hydraulic motor 15 for the ground anchor insertion unit 7. Preferably, the hydraulic control unit 26 is switchable between operation for the ground anchor removal unit 8 and the ground anchor insertion unit 7, preferably via a switch 30. If the hydraulic control unit 26 is electronically actuated, such switching can also be ensured by the respective integrated electronics.

[0115] The Fig. Figure 1 shows that a holding unit 13 of the ground anchor extraction device 2 is arranged on the displacement unit 6. The holding unit 13 can be rigidly connected to the displacement unit 6 of the anchor drilling rig 1. In particular, the holding unit 13 can have a retaining strut 14, which is oriented at least substantially vertically to the ground. Alternatively or additionally, the holding unit 13 can also be designed to support the ground anchor insertion device 3.

[0116] When using the anchor drilling system 1 to unscrew the ground anchor 4, the motor 15 can preferably be arranged directly and the ground anchor unscrewing unit 7 at least indirectly on a receptacle 16 fixed and preferably slidably on the retaining strut 14.

[0117] When using the anchor drilling system 1 for driving in ground anchors, the motor 15 can preferably be mounted directly and the ground anchor driving unit 7 at least indirectly on a receptacle 16 of the holding unit 13. Preferably, the receptacle 16 can also be fixedly and, more preferably, slidably arranged on the support strut 14.

[0118] In Fig. Figure 1 further shows that at least one support 28, and in particular several supports 28, is / are arranged on the frame 5. The support 28 can in particular be designed as skids. The support 28 can be provided for support on the ground in the operating state. The supports 28 can be arranged on the frame 5 in a height-adjustable manner.

[0119] Furthermore, the frame 5 can be designed to be foldable. For this purpose, the frame 52 can have foldable frame sections 29. The frame sections 29 are then mounted or arranged to be foldable or pivoted via corresponding hinges 31.

[0120] It is not shown in detail that the anchor drilling rig 1 is itself mobile and / or can be coupled to an agricultural vehicle. For this purpose, the anchor drilling rig 1 can be designed, in particular, as a front-mounted or rear-mounted attachment and intended for coupling with a farm vehicle.

[0121] The Fig. 2 shows opposite the Fig. 1. A hydraulic control unit 26, which can be used for the ground anchor screw-in device 3. The hydraulic control unit 26 is located in the Fig. 1 not shown in detail. Reference symbol list: 1 anchor drilling rig 2 Ground anchor removal device 3 Ground anchor screw-in device 4 ground anchors 5 frame 6 shift unit 7 Ground anchor screw-in unit 8 Ground anchor turning unit 9 Drive unit 10 fasteners 11 Quick release 12 limiters 13 Holding unit 14 Support strut 15 engine 16 recording 17 Drive shaft 18 ball joint 19 hinge 20 clamping element 21 jaw chuck 22 side wall 23 Top 24 Through opening 25 connection pins of 10 26 Hydraulic control unit 27 connection pins out of 15 28 support 29 Frame section 30 switches 31 hinges for 29 32 Recording area for 25, 27

Claims

[1] Ground anchor removal device (2) provided for removing a ground anchor (4) anchored in the ground and provided for coupling to an anchor drilling rig (1) which is designed for selectively screwing in or unscrewing the ground anchor (4), provided for arrangement on a frame (5) of the anchor drilling rig (1) and / or provided for arrangement on a sliding unit (6) connected to the frame (5) and slidably arranged on the frame (5) for selectively holding a ground anchor insertion unit (7) of a ground anchor insertion device (3) or a ground anchor removal unit (8) of the ground anchor removal device (2), with the ground anchor removal unit (8) for a friction-fit, in particular clamped, connection with the ground anchor (4), wherein a drive unit (9) of the ground anchor removal device (2) is provided for driving the ground anchor removal unit (8) in such a way that the ground anchor (4) is rotated and simultaneously pulled out of the ground. [2] Ground anchor removal device according to claim 1, characterized by , that the soil anchor turning unit (8) has a connecting means (10) for at least end-side reception of the soil anchor (4) and for friction-fit clamping of the soil anchor (4). [3] Ground anchor removal device according to claim 2, characterized by , that the connecting element (10) is designed to be foldable at least in certain areas and in particular has a quick-release fastener (11) for closing the connecting element (10) in the folded position. [4] Ground anchor removal device according to one of the preceding claims 2 and 3, characterized by , that the connecting element (10) has a limiter (12) for limiting the opening angle of the connecting element (10), in particular wherein the limiter (12) is designed as a stop for the quick-release fastener (11). [5] Ground anchor removal device according to any one of the preceding claims 2 to 4, characterized by, that the connecting means (10) is articulated on a holding unit (13) of the ground anchor extraction device (2), in particular wherein the holding unit (13) is rigidly connectable to the sliding unit (6) of the anchor drilling rig (1) and / or in particular wherein the holding unit (13) has a holding strut (14) oriented at least substantially vertically to the ground and / or in particular wherein the drive unit (9) and / or a motor (15) of the drive unit (9) are preferably mounted directly and the ground anchor turning unit (8) are mounted at least indirectly on a receptacle (16) of the holding unit (13), wherein, preferably, the receptacle (16) is fixedly and preferably height-adjustably arranged on the holding strut (14), and / or that a cardan shaft (17) of the ground anchor turning unit (9) is provided for the articulated mounting of the connecting element (10), in particular wherein the drive shaft (17) is articulated, preferably via at least one ball joint (18), to the connecting means (10) and / or the receptacle (16) and / or the motor (15), and / or that the connecting means (10) has a hinge (19) for opening, in particular wherein the hinge (19) is arranged between two clamping elements (20) of the connecting means (10) for clamping the ground anchor (4), in particular wherein at least one clamping element (20) has at least one, in particular replaceable, jaw chuck (21) for clamping the ground anchor (4) and / or in particular wherein each clamping element (20) has two side walls (22), in particular arranged at least substantially at right angles to each other, wherein, preferably, each side wall (22) has an inner, in particular replaceable, jaw chuck (21). [6] Ground anchor removal device according to claim 5, characterized by, that the connecting element (10) has a top surface (23) which can be coupled in particular to the drive shaft (17) and has at least one upper through-opening (24) for checking the arrangement of the ground anchor (4) in the connecting element (10) and / or that a connecting pin (25) is provided on the upper side of the connecting element (10) for arrangement on the drive shaft (17), in particular the ball joint (18) of the drive shaft (17), and / or for at least indirect arrangement on the motor (15). [7] Ground anchor removal device according to one of the preceding claims, characterized by , that the drive unit (9) comprises a hydraulic motor (15) and a hydraulic control unit (26), in particular wherein the hydraulic motor (15) is also designed to selectively drive the ground anchor screw-in unit (7) and / or in particular wherein the motor (15) of the drive unit (9) has a further connecting pin (27) for arrangement on the cardan shaft (17), in particular the further ball joint (18) of the cardan shaft (17), and / or in particular wherein the hydraulic control unit (26) is also designed to drive the motor (15) for the ground anchor screw-in unit (7), wherein, preferably, the hydraulic control unit (26) is switchable between operation for the ground anchor screw-out unit (8) and the ground anchor screw-in unit (7), and / or in particular wherein the hydraulic control unit (26) is manually and / or electronically operable. [8] Anchor drilling system (1) for selectively screwing in or unscrewing at least one ground anchor (4) from or tointo the ground, with at least one ground anchor extraction device (2), at least one ground anchor insertion device (3) for screwing in the ground anchor (4), a frame (5), at least one sliding unit (6) arranged slidably on the frame (5) for the respective optional holding of a ground anchor insertion unit (7) of the ground anchor insertion device (3) or a ground anchor extraction unit (8) of the ground anchor extraction device (2), and at least one drive unit (9) for optionally driving the ground anchor extraction unit (8) or the ground anchor insertion unit (7), wherein the ground anchor extraction device (2) is provided for unscrewing a ground anchor (4) anchored in the ground and for coupling to the anchor drilling system (1), wherein the ground anchor extraction device (2) has the ground anchor extraction unit (8) for a friction-fit, in particular clamped, connection with the ground anchor (4). [9] Anchor drilling rig according to claim 8, characterized by, that the drive unit (9) is designed to drive the ground anchor extraction unit (8) such that the ground anchor (4) is pulled out of the ground and simultaneously rotated, wherein, preferably, the ground anchor (4) is only rotated when the ground anchor (4) is in contact with the ground, and / or that the drive unit (9) is designed to drive the ground anchor insertion unit (7) such that the ground anchor (4) is pressed into the ground and simultaneously rotated, wherein, preferably, the ground anchor (4) is only rotated when the ground anchor (4) is in contact with the ground. [10] Anchor drilling rig according to claim 8 or 9, characterized by, that at least two ground anchor turning devices (2) or at least two ground anchor turning devices (3) are optionally arranged on the frame (5), in particular wherein each ground anchor turning device (3) and each ground anchor turning device (2) is assigned a displacement unit (6), wherein, preferably, each ground anchor turning unit (7) or each ground anchor turning unit (8) is arranged on the frame (5) so as to be displaceable, in particular longitudinally displaceable and / or height-adjustable, via the respective displacement unit (6). [11] Anchor drilling rig according to any one of the preceding claims 8 to 10, characterized by , that the drive unit (9) comprises a hydraulic motor (15) and a hydraulic control unit (26), in particular wherein the hydraulic motor (15) is designed to selectively drive the ground anchor screw-in unit (7) or the ground anchor screw-out unit (8) and / or in particular wherein the hydraulic control unit (26) is also designed to drive the motor (15) for the ground anchor screw-in unit (7), wherein, preferably, the hydraulic control unit (26) is switchable between operation for the ground anchor screw-out unit (8) and the ground anchor screw-in unit (7). [12] Anchor drilling rig according to one of the preceding claims 10 or 11, characterized by , that the sliding unit (6) is arranged in a height-adjustable and longitudinally displaceable manner on the frame (5) and / or that a holding unit (13) of the ground anchor turning device (2) is arranged on the sliding unit (6), in particular wherein the holding unit (13) is firmly connected to the displacement unit (6) of the anchor drilling rig (1) and / or in particular wherein the holding unit (13) has a holding strut (14) which is oriented at least substantially vertically to the ground, and / or that the holding unit (13) is also designed to hold the ground anchor screw-in device (3). [13] Anchor drilling rig according to claim 12, characterized by , that when using the anchor drilling system (1) for unscrewing the ground anchor, the motor (15) is preferably mounted directly and the ground anchor unscrewing unit (7) is mounted at least indirectly on a receptacle (16) of the holding unit (13), wherein, preferably, the receptacle (16) is fixedly and preferably slidably arranged on the holding strut (14), or that when using the anchor drilling system (1) for screwing in the ground anchor, the motor (15) is preferably mounted directly and the ground anchor screwing unit (7) is mounted at least indirectly on a receptacle (16) of the holding unit (13), wherein, preferably, the receptacle (16) is fixedly and preferably slidably arranged on the holding strut (14). [14] Anchor drilling rig according to any one of the preceding claims 8 to 13, characterized by, that at least one support (28), preferably several supports (28) are arranged on the frame (5) for support on the ground, in particular wherein the supports (28) are arranged in a height-adjustable manner on the frame (5), and / or that the frame (5) is designed to be foldable, in particular wherein the frame (5) has at least two foldable frame sections (29), and / or that the anchor drilling rig (1) is movable and / or can be coupled to a vehicle.

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