Device for providing braids, system comprising the device and method for providing braids

Abstract

The invention is based on a device (58) for providing braids by means of a construction machine (10), in particular in mining and / or tunnel construction, having at least one braid receiving device (12) which is provided to receive and at least partially enclose a braid unit (14) and which has a braid receiving opening (16) and a braid discharge opening (18). It is proposed that at least the braid discharge opening (18) is provided with at least one inhibiting element (20) which is provided to prevent uncontrolled braid discharge.

Description

[0001] Device for providing braids, system with the device and method for providing braids

[0002] State of the art

[0003] The invention relates to a device for providing braids according to the preamble of claim 1, a system according to claim 26 and a method for providing braids according to the preamble of claim 28.

[0004] From WO 2010 / 015339 A1 a device for providing meshes by means of a construction machine in mining and / or tunnel construction is already known.

[0005] The object of the invention is, in particular, to provide a generic device with improved properties regarding the provision of braids. This object is achieved according to the invention by the features of patent claims 1, 26, and 28, while advantageous embodiments and further developments of the invention can be found in the subclaims.

[0006] Advantages of the invention

[0007] The invention is based on a device for providing braids by means of a construction machine, in particular in mining and / or tunnel construction, with at least one braid receiving device which is intended to receive and at least partially enclose a braid unit and which has a braid receiving opening and a braid dispensing opening.

[0008] It is proposed that at least the braid dispensing opening be provided with at least one inhibiting element designed to prevent uncontrolled braid dispensing. This enables advantageous braid laying, in particular along tunnel or mine walls, which in particular does not require hydraulics, pneumatics and / or electronics. Controlled braid dispensing can advantageously be achieved, in particular using particularly simple means. Purely mechanical braid handling can advantageously be enabled. In particular, the braid receiving device is designed to receive a braid unit and to prepare it for processing, in particular for fastening the braid unit to a wall, e.g. a tunnel wall and / or a mine wall and / or a gallery wall and / or a mountain wall or a comparable structure. In particular, the braid unit comprises the braid to be prepared.In particular, the braid unit is designed as a braid roll. Alternatively, the braid unit could also be designed in a form other than a roll, e.g. as a folded braid stack or the like. In particular, the braid unit comprises at least one, preferably exactly one, braid web. The braid web is preferably significantly longer than it is wide. Typical lengths of braid webs are, for example, 15 m, 20 m, 25 m or 30 m. Typical widths of braid webs are, for example, 2 m, 2.5 m, 2.7 m or 3 m. In particular, the braid is designed as a steel wire braid, preferably as a steel wire mesh. In particular, the braid is made of at least one high-strength steel wire. A “high-strength steel wire” is to be understood in particular as a steel wire with a tensile strength of at least 800 N / mm. 2 , preferably of at least 1200 N / mm 2 , advantageously of at least 1770 N / mm2 , preferably of at least 2200 N / mm 2 and particularly preferably not more than 3000 N / mm 2be understood. In particular, the mesh forms a safety net which, when installed, is intended to prevent rockfall or the like and / or to reduce its effects. In particular, the mesh is formed from a plurality of interwoven flat spirals, of which at least one spiral is made from at least one single wire, a wire bundle, a wire strand, a wire rope and / or another longitudinal element with at least one wire. Alternative mesh types, such as hexagonal meshes or ring nets, etc., are also conceivable. Preferably, the device is intended for the provision of so-called TECCO™ meshes from Geobrugg AG (Romanshorn, Switzerland), in particular MINAX™ meshes (e.g. MINAX 80 / 4 or MINAX 80 / 3) from Geobrugg AG. “Intended” should be understood in particular to mean specially programmed, designed and / or equipped.The fact that an object is intended for a specific function should be understood in particular to mean that the object fulfils and / or executes this specific function in at least one application and / or operating state.

[0009] The construction machine can be designed as a tunnel construction machine, preferably as a bolter or a jumbo, or also as a separate machine specifically provided for holding the mesh receiving device. In particular, the construction machine has at least one boom. In particular, the mesh receiving device is intended to be mounted on the boom, in particular on one end of the boom. In particular, the mesh receiving device is intended to be moved along a tunnel wall or the like by means of the boom of the construction machine. In particular, the mesh receiving device can be aligned in any position and / or orientation relative to the wall to provide the mesh. In particular, the mesh receiving device makes the mesh ready for extraction. The mesh can be extendable manually or with aids, e.g. a second boom of the construction machine designed as a drilling arm.In particular, the braid receiving device has a shape which allows the receiving, in particular insertion and / or suspension, of at least one braid unit. In particular, the braid receiving device encloses the at least one braid unit, in particular a braid unit designed as a braid roll, at least in the circumferential direction, at least partially, preferably at least to a large extent. In this context, a large extent is to be understood as meaning in particular 60%, preferably 75%, more preferably 90% and particularly preferably 95%. For this purpose, the braid receiving device can, for example, have an at least substantially cylindrical shape. It is conceivable that cover surfaces of the cylindrical shape are closed or open or at least openable. If the cover surfaces are openable, lateral insertion of braid units would be conceivable.However, it is preferred to arrange the braid receiving opening on the circumference of the cylindrical shape.

[0010] In particular, the braid receiving device is made of a metallic material, for example, steel. In particular, the braid receiving device is made of a structurally rigid, in particular flexurally rigid, material. In particular, the material of the braid receiving device is selected such that even a back-and-forth falling of the braid unit in the braid receiving device during an installation movement of the braid receiving device cannot cause damage, such as bending, etc. In particular, the braid receiving device has a weight of less than 200 kg, preferably less than 150 kg, and more preferably less than 100 kg. In particular, the braid receiving device has a load-bearing capacity for braid units of more than 500 kg, preferably more than 750 kg, and more preferably more than 1000 kg.In particular, the mesh receiving device is intended to accommodate at least mesh rolls with a length of approximately 2.7 m, a diameter of approximately 0.7 m, and / or a weight of approximately 210 kg. In particular, the mesh receiving device forms an unwinding unit for rolled-up steel wire mesh. In particular, the mesh receiving device has a center of gravity which is located in a vicinity of the boom of the construction machine and / or a mounting point of the mesh receiving device for installation on the construction machine. The term “near area” should be understood in particular as an area formed by points, wherein each point is at most 0.5 m, preferably at most 0.3 m away from the boom of the construction machine and / or from the mounting point of the mesh receiving device. In particular, the mesh receiving device can be designed as a type of cage. Alternative embodiments, e.g.with at least partially closed walls, are conceivable.

[0011] In particular, the braid receiving opening is arranged on a radial circumference of the braid receiving device, in particular on a cylinder jacket of the cylindrical shape. In particular, the braid receiving opening has an elongated shape. In particular, an extension of the braid receiving opening in the axial direction of the braid receiving device is at least twice as large, preferably at least three times as large, and particularly preferably at least four times as large as an extension in a direction perpendicular to the axial direction of the braid receiving device (circumferential direction). In particular, the braid receiving opening has dimensions that allow easy insertion of the braid unit into a braid receiving space of the braid receiving device, for example, at least 2.5 m x 1 m.In particular, the braid receiving opening is designed as a recess and / or opening in the braid receiving device, wherein the opening and / or recess can be formed as the non-enclosing part of the braid receiving device. In particular, the braid receiving opening could be at least partially closed. In particular, the open state could be provided to enable insertion and / or removal of the braid unit. In particular, the closed state could be provided to hold the braid unit in the braid receiving device, in particular to prevent it from falling out. In particular, the braid dispensing opening is arranged on a radial circumference of the braid receiving device, in particular on a cylinder jacket of the cylindrical shape. In particular, the braid dispensing opening has an elongated shape. In particular, the braid dispensing opening is designed like a slot.In particular, an extension of the braid dispensing opening in the axial direction of the braid receiving device is at least four times as large, preferably at least seven times as large, and particularly preferably at least ten times as large as a further extension in a direction perpendicular to the axial direction of the braid receiving device (circumferential direction). In particular, the braid receiving opening has dimensions that allow a flat dispensing of the braid of the braid unit from the braid receiving space of the braid receiving device, for example at least 2.5 m x 0.2 m. In particular, the braid dispensing opening is formed by the braid receiving opening. In particular, the braid dispensing opening is smaller than the braid receiving opening. In particular, the braid dispensing opening is formed as a part of the braid receiving opening.

[0012] In particular, the braid of the braid unit is provided through the braid dispensing opening. In particular, the braid unit inserted into the braid receiving device is partially unrolled for provision and guided through the braid dispensing opening. In particular, a braid unit inserted into the braid receiving device can be pulled out of the braid dispensing opening. In particular, the inhibiting element is provided to prevent automatic unrolling / automatic dispensing of the braid, e.g., due to gravity. In particular, the inhibiting element is provided to hold the braid in a substantially fixed unrolling / pulled-out state. In particular, the inhibiting element is designed differently from the braid receiving device. In particular, the inhibiting element is made of a different material than the braid receiving device.In particular, the restraining element is provided to provide the braid in a controlled and / or controllable manner. It is conceivable for the braid receiving device to have a plurality of restraining elements, in particular two, three or more than three restraining elements. In particular, the number and / or design of the restraining elements can depend on the size and / or weight of the braid unit, as well as other properties of the braid unit and / or the braid receiving device. In particular, the restraining element forms a type of lip of the braid dispensing opening. In particular, the restraining element sweeps over the braid from at least one side during dispensing of the braid. In particular, the restraining element fixes the braid in a current dispensing position, for example by means of a frictional force. In particular, the restraining element clamps the braid to the braid receiving device or to another restraining element.

[0013] Furthermore, it is proposed that the restraining element be designed to be elastic. This advantageously allows for simple, preferably hydraulic, pneumatic and / or electronic-free restraining of the braid. Different types of braid can advantageously be restraining. Damage to the braid unit during braid dispensing can advantageously be at least substantially avoided and / or prevented. Advantageously, the strength of the restraining force by the restraining element can be precisely adjusted, for example by selecting the elasticity. In particular, the restraining element is made of an elastic material, in particular a plastic, a rubber, a metallic material, such as a (high-strength) steel sheet or plates / sheets made of other ferrous or non-ferrous metals (e.g.an aluminum block), and / or a wood-based material, such as an elastic chipboard and / or a particularly elastic type of wood, such as ash, hickory, or elm. It is also conceivable for the locking element to be made of a composite material, for example a type of brake pad, as is known in particular from vehicle construction, and / or a (composite) fleece. It is also conceivable for the locking element to be designed as a (metallic) spring, which is intended to generate pressure on the braid unit, in particular due to the spring-elastic properties of the spring element. Preferably, the locking element is designed as a plate and / or a slotted plate. It is also conceivable for the locking element to be in the form of a brush and / or a block and / or a ring and / or a disc. Alternatively, the locking element can also be made of a plastoelastic material (cf.Joint sealing material). In particular, the restraining element can be flexibly deflected from a rest position. In particular, the restraining element is deflected by the braid during braid dispensing. In particular, the restraining element is in the rest position when the braid dispensing opening is free of a braid. In particular, the restraining element is in an elastically deflected position / state when a braid is guided out of the braid dispensing opening.

[0014] It is further proposed that the restraining element is provided for applying pressure to at least part of the braid. Advantageously, the pressure can be used to control and / or suppress braid dispensing in a particularly simple manner, preferably without the need for hydraulics, pneumatics, and / or electronics. Advantageously, the device for providing braids can be made particularly user-friendly. Advantageously, easy handling of braid units can be enabled. In particular, the pressure generated by the restraining element presses the braid against an edge of the braid dispensing opening. Alternatively, the pressure can also press the braid against an opposite restraining element. In particular, the restraining element applies the pressure to one of the two flat sides of the braid.In particular, the restraining element applies the pressure to an inner flat side of the braid or to an outer flat side of the braid. In particular, the inner flat side of the braid is designed as the side which, when rolled up in a braid roll, faces a winding axis of the braid roll. In particular, the outer flat side of the braid is designed as the side which, when rolled up in a braid roll, faces away from the winding axis of the braid roll. In particular, a plurality of restraining elements can be arranged approximately along a common line. Alternatively, an offset can also be provided between individual restraining elements, for example between adjacent restraining elements. In particular, the restraining elements are arranged without overlapping one another. Alternatively, however, an at least partial overlap of adjacent restraining elements is also conceivable.

[0015] It is also proposed that the restraining element be provided to apply the pressure to at least that part of the braid which is currently emerging from the braid dispensing opening. This advantageously makes it possible to achieve effective restraint to prevent self-unwinding. Advantageously, the braid can be fixed close to an exit point from the braid receiving device, which in particular makes handling of the braid when attaching it to a surface easier. In particular, the restraining element is arranged in a vicinity of the braid dispensing opening, in particular an edge of the braid dispensing opening. In this case, a "near area" is to be understood as an area formed by points which are at most 25 cm, preferably at most 15 cm and more preferably at most 7 cm away from an edge of the braid dispensing opening.Alternatively or additionally, however, it is also conceivable that an inhibiting element is arranged in an interior of the braid receiving device and exerts a pressure on a part of a braid roll that is still rolled up.

[0016] It is also proposed that the restraining element is arranged on the braid receiving device in such a way that, at least in an unloaded state, the restraining element at least partially covers the braid dispensing opening to at least a large extent. This advantageously makes it possible to achieve effective restraining to prevent self-unrolling, in particular in a technically particularly simple and / or cost-effective manner. In particular, the restraining element is arranged on the braid receiving device in such a way that, when the braid emerges from the braid dispensing opening, the restraining element must elastically deform, e.g. bend away from the braid dispensing opening. Preferably, the restraining element completely overlaps the braid dispensing opening in the unloaded state at least in one spatial direction, in particular in a circumferential direction around the braid receiving device.In particular, the braid receiving device is empty in the unloaded state or is equipped with a non-extended braid roll. In particular, the restraining element partially overlaps / covers the braid dispensing opening even when the braid emerges from the braid dispensing opening. In particular, the restraining element only partially overlaps / covers the braid dispensing opening in the axial direction of the braid receiving device, in particular in the unloaded state and in a loaded state of the restraining element. In particular, the restraining element can be arranged on an upper side of the braid receiving opening, on a lower side of the braid receiving opening, or on both opposite sides of the braid receiving opening. In principle, restraining elements that press laterally against the braid could also be provided alternatively or additionally.

[0017] If the locking element is replaceably attached to the braid receiving device, repair and / or maintenance can advantageously be carried out very easily. Advantageously, a high level of user-friendliness can be achieved. The locking element can, for example, be screwed to the braid receiving device or clamped to the braid receiving device or plugged onto the braid receiving device, e.g. by means of a snap fastener and / or a quick-release fastener. In particular, the locking element can be replaced without causing damage. In particular, the locking element forms a wearing part. Furthermore, it is proposed that the braid receiving device have at least one closure element, in particular a movably mounted one, for at least partially closing the braid receiving opening. This advantageously makes it possible to achieve secure reception of the braid unit.In addition, easy filling of the braid receiving device can advantageously be enabled. In particular, the closure element closes the braid receiving opening at least to the extent that the braid unit cannot fall out of the braid receiving device. In particular, the closure element closes the braid receiving opening only partially, in particular in the axial direction of the braid receiving device and / or in the circumferential direction of the braid receiving device. Preferably, the closure element closes the braid receiving opening in the circumferential direction by at least 80%, preferably by at least 90%. Preferably, the closure element closes the braid receiving opening in the axial direction by at most 25%, preferably by at most 15%. In particular, the closure element forms a closure slide, a cover and / or a flap.In particular, the closure element is formed from a material that is at least substantially identical to a remainder of the braid receiving device forming the braid receiving space.

[0018] If the braid receiving device has at least one guide rail designed to guide the closure element along a periphery of the braid receiving device, a compact design and / or convenient handling can be advantageously enabled. Furthermore, incorrect operation can be advantageously prevented.

[0019] If, in a closed state, the closure element also partially delimits the braid dispensing opening, the overall weight of the braid receiving device can advantageously be kept low. Furthermore, operation of the closure element, particularly manual operation, can advantageously remain easy to accomplish. In particular, the closure element has a handle element for manually adjusting the position of the closure element relative to the braid receiving device.

[0020] Furthermore, it is proposed that the closure element, in particular a positioning of the closure element along the guide rail, is provided for adjusting the pressure applied by the arresting element. This advantageously makes it possible to achieve a high level of flexibility. In addition, a high level of operational readiness can be advantageously achieved, in particular by enabling simple and / or quick readjustment. In addition, a simple construction can advantageously be achieved. In particular, by adjusting a setting position of the closure element, a size of the braid dispensing opening in the circumferential direction can be achieved, whereby in particular a degree of necessary bending of the arresting element for passage through the braid dispensing opening through a braid can be adjusted. In particular, the greater the pressure generated, the stronger the elastic bending / deflection of the arresting element through the braid.In particular, by positioning the locking element, a partially worn locking element can be adjusted, in particular re-tensioned.

[0021] In addition, it is proposed that the closure element be designed to be substantially narrower in a main direction of extension of the braid receiving opening and / or the braid dispensing opening than the braid receiving opening and / or the braid dispensing opening. Material costs can advantageously be reduced. The weight of the braid receiving device can be particularly advantageously reduced. In this context, “substantially narrower” is to be understood in particular as at least 50% narrower, preferably at least 70% narrower, and more preferably at least 85% narrower. The width of the closure element is preferably approximately one-ninth of the width of the braid receiving opening. In particular, the braid receiving opening extends completely between two opposite axial end regions of the braid receiving device. Furthermore, it is proposed that the inhibiting element be arranged at an end of the closure element on the braid dispensing opening side.This advantageously allows for a simple design. The pressing force generated by the locking element can be adjusted particularly easily. In particular, the locking element extends beyond the braid-discharge-opening end of the closure element. In particular, the locking element forms an extension of the closure element on the braid-discharge-opening side.

[0022] It is further proposed that the restraining element and / or the closure element have a width which corresponds to at least one mesh size, preferably at least two mesh sizes, of the mesh provided for provision. Advantageously, the device can thereby be operated without disruption, in particular since the restraining element and the mesh unit cannot become entangled. Advantageously, a particularly uniform restraining effect can also be achieved over the entire length of the mesh unit. In particular, the width is an extension of the restraining element and / or the closure element parallel to the axial direction of the mesh receiving device. In particular in the case of a wire mesh, such as the TECCO™ mesh, the mesh size is given by a distance between two adjacent bending points of a helix of the wire mesh and / or two contact points of adjacent helixes of the wire mesh. Typical distances of this type (ieTypical minimum widths for locking elements / closing elements are 45 mm, 65 mm, or 80 mm. Preferably, the widths of the locking elements and the attached locking elements are approximately the same. Alternatively, however, a locking element can also support several locking elements arranged side by side.

[0023] Furthermore, it is proposed that the braid receiving device has at least one further closure element, in particular one that is at least substantially identical to the closure element. Advantageously, secure reception of the braid unit can be achieved while maintaining the lowest possible weight and / or while maintaining the simplest possible handling. In particular, three or more closure elements are also conceivable. In particular, the closure elements are arranged spaced apart from one another along the axial direction. It is conceivable that two or more closure elements are connected to one another by means of a connecting element in order to advantageously allow simple and / or uniform closing and opening of the closure elements. Alternatively, however, each closure element can also be designed so that it can be operated individually.In particular, the closure elements are designed and / or dimensioned such that each individual closure element, or at least the combination of all closure elements, is strong enough to support a mesh unit. In particular, when the device is moved by the construction machine, the mesh unit may shift in such a way that its entire weight rests exclusively on the closure elements. Even in this case, secure mounting of the mesh unit in the mesh support device must be ensured.

[0024] If the braid receiving device forms an at least substantially cylindrical braid receiving space, which is intended to receive at least the braid unit, proper unwinding of braid units designed as braid rolls can advantageously be achieved. Furthermore, a high degree of stability and / or compactness of the braid receiving device can advantageously be achieved. In particular, the orientation of the braid roll within the braid receiving space is irrelevant with regard to the functionality of the device.

[0025] Furthermore, if the braid receiving device has a braid receiving space that is extra-wide, particularly in relation to the web widths of braid units that can be provided by the braid receiving device, and is intended to provide a tolerance range for varying package widths of braid units, in particular of otherwise identical design, a high level of user-friendliness can be advantageously achieved. In particular, receiving braid units can be advantageously simplified, especially when they are not rolled up and / or stacked perfectly straight. In particular, the extra width is at least 10%, preferably at least 15%, and preferably at least 20% of a web width of a largest braid unit that can be provided by the braid receiving device.For example, if the braid take-up device is intended to provide approximately 2.3 m wide (MINAX™ 80 / 4) braid rolls, the width of the braid take-up space is preferably approximately 2.7 m.

[0026] It is also conceivable for the mesh support device to be width-adjustable. This would allow the dimensions of the mesh support device to be advantageously adapted to different construction machines and / or different mesh units.

[0027] If at least one wall of the braid receiving device also has lightweight recesses, the overall weight can advantageously be kept low. The lightweight recesses can have different geometries, e.g., slots, holes, meshes, etc. In particular, the lightweight recesses are distributed over at least a large portion of the total surface of the braid receiving device. In this context, a "large portion" is understood to mean 60%, preferably 70%, more preferably 80%, and particularly preferably 90%.

[0028] Furthermore, it is proposed that the device comprise a protective unit which covers at least part of an outer side of the mesh receiving device to prevent injuries and / or soiling. This can advantageously extend maintenance intervals. This can advantageously increase service life. This can advantageously increase safety. In particular, the protective unit is designed as a tarpaulin, a net, a textile or a comparable flat element. In particular, the protective unit is fastened to the outer side of the mesh receiving device. In particular, the protective unit has - if at all - significantly smaller openings than the mesh receiving device, so that dirt, e.g. (sprayed) mortar from tunnel construction reinforcement work ("concrete rain") cannot penetrate into the mesh receiving space and / or that fingers or other body parts cannot penetrate into the mesh receiving space.

[0029] It is also proposed that the braid receiving device have a support element for positioning the braid receiving device on a base. This advantageously allows the braid receiving device to be placed securely, in particular stably. Advantageously, the braid receiving device can be positioned relative to a base by the support element in such a way that insertion into the braid receiving space and closing of the braid receiving space can be carried out as easily as possible. In particular, the support element is formed integrally with the braid receiving device. “Integral” is to be understood in particular as being connected by a material fit, for example by a welding process and / or gluing process, etc., and particularly advantageously as being molded onto the base, such as by production from a single casting and / or by production using a single-component or multi-component injection molding process.Advantageously, the term "one-piece" should also be understood as "monolithic." "One-piece" should be understood specifically as "formed in one piece."

[0030] Furthermore, it is proposed that at least one region of the braid receiving device delimiting the braid receiving opening has a braid insertion aid element, which is provided in particular to assist in inserting the braid unit into a braid receiving space of the braid receiving device. Advantageously, the braid unit can be inserted and / or received in the braid receiving device particularly easily, in particular even at least partially automatically. In particular, the braid insertion aid element is designed as a bevel, which is preferably arranged on a lower edge of the braid receiving opening in the erection direction, in particular on an edge facing the erection element. In particular, the braid insertion aid element is provided to impart an excavator bucket function to the braid receiving device when the braid receiving opening is open.

[0031] It is further proposed that the braid receiving device comprise a bearing unit for the rotatable mounting of braid roll center rods. This can advantageously improve the storage of braid rolls in the braid receiving space and / or the unwinding of the braid rolls. In particular, the bearing unit comprises at least two (round) receiving openings for braid roll center rods arranged opposite one another in the axial direction of the braid receiving device at the lateral ends of the braid receiving device.

[0032] Additionally, it is proposed that the mesh receiving device comprise a fastening unit for attachment to the construction machine. This advantageously enables simple installation. In particular, the fastening unit is located close to the center of gravity of the mesh receiving device. In particular, the fastening unit forms the mounting point of the mesh receiving device. In particular, the mesh receiving device is reinforced in the area of ​​the fastening unit.

[0033] Furthermore, it is proposed that the braid receiving device have stiffening elements extending parallel to a main direction of extension of the braid receiving device. This advantageously allows a design improvement. This advantageously allows a stiffness increase. This advantageously allows a weight reduction.

[0034] As an alternative to a plate-like design of the arresting element, it is proposed that the arresting element be designed as a roller. This can advantageously achieve guidance of the braid dispensing. It is also conceivable for the previously described elastic, e.g. plate-like, arresting elements to be additionally provided with rollers in their end regions to guide the braids. The rollers can advantageously also achieve copy protection, in particular by designing and / or arranging them in such a way that the rollers only allow braids with specific mesh shapes and / or specific mesh sizes to be reliably dispensed from the respective braid receiving device. Advantageously, the rollers could be designed so that they cannot be removed from the closure elements without causing damage.

[0035] It is further proposed that the device comprise a plurality of roller-shaped blocking elements arranged corresponding to a mesh width or half a mesh width of the mesh unit intended for provision. This advantageously provides a type of copy protection.

[0036] Furthermore, a system comprising the device and at least one mesh unit, in particular a mesh roll, and a construction machine intended for laying mesh is proposed, wherein the device is firmly connected to the construction machine. This enables advantageous mesh laying, in particular along tunnel or mine walls, which requires no hydraulics, pneumatics, and / or electronics. In particular, the device on the boom of the construction machine can be rotated as desired, in particular by 360° or more, without impairing its functionality or posing a risk of the mesh unit falling out of the mesh receiving device.

[0037] Furthermore, a method for providing mesh, particularly in mining and / or tunneling, using the device or system is proposed, wherein uncontrolled mesh dispensing is prevented in at least one method step. This enables advantageous mesh laying, particularly along tunnel or mine walls, which in particular does not require hydraulics, pneumatics, and / or electronics. Drawings

[0038] Further advantages will become apparent from the following description of the drawings. The drawings illustrate exemplary embodiments of the invention. The drawings, the description, and the claims contain numerous features in combination. Those skilled in the art will also expediently consider the features individually and combine them into useful further combinations.

[0039] They show:

[0040] Fig. 1 is a schematic representation of a system for laying mesh in mining and / or tunnel construction with a device, a mesh unit and a construction machine,

[0041] Fig. 2 is a schematic view of a section of the braid of the braid unit,

[0042] Fig. 3 is a schematic perspective view of the braid unit and the device with a braid receiving device having opened closure elements,

[0043] Fig. 4 is a further schematic perspective view of the device with the braid receiving device, wherein the braid unit is arranged in a braid receiving space of the braid receiving device and wherein the closure elements are closed,

[0044] Fig. 5 is a schematic vertical sectional view of the device with the braid receiving device and with a protective unit,

[0045] Fig. 6 is a schematic perspective rear view of the braid receiving device,

[0046] Fig. 7 shows part of a schematic vertical sectional view of the device with the braid receiving device, the closure element of which is provided with an alternative inhibiting element, and Fig. 8 shows a schematic flow diagram of a method for providing braids in mining and / or tunnel construction.

[0047] Description of the embodiments

[0048] Figure 1 shows a schematic representation of a system 56 for laying mesh in mining and / or tunneling. The system 56 has a construction machine 10. The construction machine 10 is designed as a bolter / jumbo. The construction machine 10 is intended for drilling holes in rock faces 68. The construction machine 10 is modified such that it is also intended for laying the mesh. The system 56 has a device 58. The device 58 is firmly connected to the construction machine 10. The construction machine 10 has a boom 62. The device 58 is attached to the boom 62. The device 58 is attached to the boom 62 instead of a drill. The device 58 is attached to the outermost end of the boom 62. The construction machine 10 has another boom 64. The another boom 64 has a drill 66. The further boom 64 is intended to attach the mesh to the rock wall 68.The device 58 is provided for preparing the mesh for installation on the rock face 68. The system 56 comprises a mesh unit 14. The mesh unit 14 is designed as a mesh roll. The construction machine 10 is provided to move the device 58 along the rock face 68 and thereby unroll the mesh roll to dispense the mesh. Meanwhile, the drill 66 secures the already unrolled mesh to the rock face 68.

[0049] Figure 2 shows a schematic view of a section of the mesh of the mesh unit 14. The mesh is designed as a wire net. The wire of the wire net is made of high-strength steel. The mesh is designed as a safety net to protect against rockfall. The mesh has a plurality of coils 70. The coils 70 interlock with each other. The coils 70 are braided together. The coils 70 are aligned parallel to each other. The coils 70 each have the shape of a flattened helix. The coils 70 each have a sequence of alternating legs 72, 74. The coils 70 each have bending points 76. A bending point 76 connects two legs 72, 74 of a coil 70. Interlocking coils 70 touch each other in the stretched state of the braid in a close region of the bending points 76, preferably at the bending points 76.The legs 72, 74 each span a bending angle 78. The bending angle 78 is less than 90°. The braid forms a diamond-shaped mesh 80. The braid has a mesh size of 30. The mesh size 30 corresponds to a width of the diamond-shaped mesh 80 parallel to a longitudinal direction 82 of the coils 70. The coils 70 are each formed from a single wire. Alternatively, coils 70 could also be formed from a wire bundle, a wire strand, a wire rope, and / or another longitudinal element.

[0050] Fig. 3 shows a schematic perspective view of the device 58 for providing braids by means of the construction machine 10. In addition, Fig. 3 schematically shows a braid unit 14 designed as a braid roll. The device 58 has a braid receiving device 12. The braid receiving device 12 is provided to receive the braid unit 14. The braid receiving device 12 is provided to partially enclose the received braid unit 14 (see also Fig. 4). The braid receiving device 12 forms a braid receiving space 34. The braid receiving space 34 is approximately cylindrical in shape. The braid receiving space 34 is provided to receive the braid unit 14. The braid receiving space 34 of the braid receiving device 12 is designed to be extra wide in relation to a web width 84 of a braid unit 14 that can be provided by the braid receiving device 12.Due to the excess width, the braid receiving space 34 provides a tolerance range for varying package widths of otherwise identically designed braid units 14. The braid receiving device 12 delimits the braid receiving space 34 by walls 36, 90. The walls 36, 90 of the braid receiving device 12, in particular the walls 36 delimiting the receiving space in the circumferential direction 92, have lightweight recesses 38. The lightweight recesses 38 are designed as round holes / bores / punches. Other shapes are also conceivable, however. The braid receiving device 12 has a support element 44. The support element 44 is provided for positioning the braid receiving device 12 on a base. The support element 44 forms a flat support surface and / or adjustable feet on the otherwise cylindrical circumference of the braid receiving device 12.The braid receiving device 12 has a bearing unit 48 for the optional rotatable mounting of braid roll center rods (not shown) - if present. The bearing unit 48 is formed by holes arranged opposite one another in the axial direction 86 of the braid receiving device 12 in the walls 90 delimiting the braid receiving device 12 in the axial direction 86. The braid receiving device 12 has stiffening elements 54, 88. Some of the stiffening elements 54 extend parallel to a main extension direction 52 of the braid receiving device 12. The stiffening elements 54 extending parallel to the main extension direction 52 of the braid receiving device 12 are arranged on a wall 36 delimiting the braid receiving space 34 in the circumferential direction 92. A further part of the stiffening elements 88 extends perpendicular to the main extension direction 52 of the braid receiving device 12.The stiffening elements 88 extending perpendicular to the main extension direction 52 of the braid receiving device 12 are arranged on a wall 90 delimiting the braid receiving space 34 in the axial direction 86.

[0051] The braid receiving device 12 forms a braid receiving opening 16.

[0052] The braid receiving opening 16 forms an access for inserting the braid unit 14 into the braid receiving space 34. The braid receiving opening 16 is partially closable. The braid receiving device 12 has a closure element 22. The closure element 22 is provided for partially closing the braid receiving opening 16. The closure element 22 is movably mounted. The closure element 22 is displaceably mounted in the circumferential direction 92. The closure element 22 is manually displaceable. To simplify the manual displaceability of the closure element 22, handle elements (not shown) can be provided. The braid receiving device 12 has a guide rail 24. The guide rail 24 is provided for guiding the closure element 22 on the circumference of the braid receiving device 12. The guide rail 24 is covered with cross struts 94.The cross struts 94 serve to secure the closure element 22 in the guide rail 24 in a captive manner. The cross struts 94 serve to reinforce / stiffen the braid receiving device 12. The closure element 22 is substantially narrower than the braid receiving opening 16 in a main extension direction 26 of the braid receiving opening 16. The closure element 22 has a width 100 which corresponds at least to a mesh size 30 of the braid provided for provision.

[0053] The braid receiving device 12 has a further closure element 32. The further closure element 32 is designed to be at least substantially identical to the closure element 22. In the exemplary embodiment shown in the figures, the braid receiving device 12 has a total of three closure elements 22, 32, although more or fewer are also conceivable. The closure elements 22, 32 are arranged and / or designed such that a braid unit 14 arranged in the braid receiving space 34 (see also Fig. 4) cannot fall out of the braid receiving space 34, regardless of the spatial position of the braid receiving device 12. In Fig. 3, the closure elements 22, 32 are shown in a fully open position. The braid receiving device 12 has a braid insertion aid element 46.The braid insertion aid element 46 is arranged in a region of the braid receiving device 12 that delimits the braid receiving opening 16. The braid insertion aid element 46 is arranged in an edge region of the braid receiving opening 16 facing the support element 44. The braid insertion aid element 46 is provided to assist the insertion of the braid unit 14 into the braid receiving space 34. The braid insertion aid element 46 is designed as a chamfer 96. The chamfer 96 tapers the braid receiving device 12 toward the braid receiving opening 16. When the braid receiving device 12 is placed on the support element 44, the chamfer 96 forms a type of ramp for inserting the braid unit 14. The braid receiving device 12 can be used in the manner of an excavator bucket by means of the braid insertion aid element 46 when the closure elements 22, 32 are open.The braid insertion aid element 46, in particular the bevel 96, extends over the entire axial length of the braid receiving opening 16, in particular of the braid receiving device 12.

[0054] Fig. 4 shows a further schematic perspective view of the device 58 for providing braids by means of the construction machine 10, wherein the closure elements 22, 32 are positioned in a position closing the braid receiving opening 16. In this state, the braid receiving device 12 forms a braid dispensing opening 18, which is in particular of a different size than the previously described braid receiving opening 16. The braid dispensing opening 18 is slit-shaped. The braid dispensing opening 18 overlaps with the braid receiving opening 16. A lower edge (located in the direction of the support element 44) of the braid receiving opening 16 also forms a lower edge of the braid dispensing opening 18. However, an upper edge of the braid receiving opening 16 (seen in the erection direction of the braid receiving device 12) is different from an upper edge of the braid dispensing opening 18.The upper edge of the braid dispensing opening 18, as viewed in the direction of installation of the braid receiving device 12, is essentially formed / delimited by the braid dispensing opening-side ends 28 of the closure elements 22, 32. In a closed state, the closure elements 22, 32 directly delimit the braid dispensing opening 18 in sections.

[0055] The braid receiving device 12 has a locking element 20. The braid dispensing opening 18 is provided with the locking element 20. The locking element 20 is intended to prevent uncontrolled braid dispensing from the braid unit 14 inserted into the braid receiving space 34. The locking element 20 is intended to prevent the braid roll from unwinding automatically. The locking element 20 is intended to enable tensioning of the braid by moving the braid receiving device 12 along the rock face 68. The locking element 20 is arranged on the end 28 of the closure element 22 facing the braid dispensing opening. The locking element 20 is replaceably attached to the braid receiving device 12, in particular to the closure element 22. The inhibiting element 20 has a width 98, which corresponds at least to the mesh size 30 of the mesh provided for provision.In the illustrated case, the width 98 of the arresting element 20 corresponds approximately to the width 100 of the closure element 22. However, deviations in the widths 98, 100 and / or arrangements with multiple arresting elements 20 on one closure element 22 are also conceivable. Each of the closure elements 22, 32 is provided with one or more arresting elements 20 on the braid dispensing opening side.

[0056] The restraining element 20 is arranged on the braid receiving device 12, in particular the closure element 22, such that the restraining element 20, in an unloaded state (i.e., in a state in which the braid does not exit through the braid dispensing opening 18), completely covers the braid dispensing opening 18 in a section corresponding to the width 98 of the restraining element 20. The unloaded, closed state is not shown in the figures. In Fig. 4, the braid is partially pulled out of the braid receiving space 34, thus passing through the braid dispensing opening 18. The restraining element 20 is elastic. The restraining element 20 is made of a rubber material. The restraining element 20 is designed as a rubber plate. The elastic restraining element 20 is elastically bent / elastically deflected by the braid exiting the braid dispensing opening 18 (see also Fig. 5).The restraining element 20 is designed to apply pressure to a portion of the braid. Because the restraining element 20, due to its elasticity, strives to return to its rest position / original shape, the restraining element 20 generates pressure on the portion of the braid that is in contact with the restraining element 20. Thus, the restraining element 20 is designed to always apply pressure to the portion of the braid that is currently emerging from the braid dispensing opening 18. By arranging the restraining element 20 at the end 28 of the closure element 22 facing the braid dispensing opening, the closure element 22 is designed to adjust the pressure applied by the restraining element 20. The smaller the braid dispensing opening 18 is selected by adjusting the closure element 22, the more / tighter the restraining element 20 must be bent by the braid emerging from the braid dispensing opening 18.

[0057] Fig. 5 shows a schematic vertical sectional view of the device 58 with the braid receiving device 12. The closure element 22 is in a closed state. The braid roll arranged in the braid receiving space 34 is shown partially extended from the braid dispensing opening 18. The restraining element 20 is severely deformed / bent outwards due to the extension of the braid. The restraining element 20 thus presses the braid against an opposite edge of the braid dispensing opening 18, in particular against the braid insertion aid element 46 / the bevel 96. The closure element 22 is fixed at an end 102 facing away from the braid dispensing opening-side end 28 to a base body of the braid receiving device 12 / to the guide rail 24. As an example, Fig. 5 shows a bolt fixation of the closure element 22. However, alternative fixation methods are of course conceivable.The closure element 22 can be fixed in various closed positions, each of which results in slightly different (vertical) sizes of the braid dispensing opening 18. Depending on the selected closed position of the closure element 22, the strength of the pressure / locking force generated by the locking element 20 can be adjusted and / or a partially worn locking element 20 can be readjusted.

[0058] The device 58 has a protective unit 40. The protective unit 40 is only shown schematically in Fig. 5. For reasons of clarity, the protective unit 40 is not shown in the other figures. The protective unit 40 covers an outer side 42 of the braid receiving device 12. The protective unit 40 is provided to prevent injuries, such as pinching of fingers when reaching through the lightweight recess 38. The protective unit 40 is provided to prevent the penetration of contaminants, such as concrete, mud or dirt, into the braid receiving space 34. The protective unit 40 is formed by a fine-mesh net (wire net). Alternatively, at least partial embodiments of the protective unit 40 using tarpaulins, films, textiles or the like are also conceivable. The braid receiving device 12 has a fastening unit 50 for fastening to the construction machine 10.The fastening unit 50 can also be seen in Fig. 6, which shows a schematic perspective rear view of the braid receiving device 12.

[0059] Fig. 7 schematically shows the device 58 with a braid receiving device 12, whose closure element 22 is provided with an alternative arresting element 20'. The alternative arresting element 20' is partially formed as a roller 104. In this case, the device 58 has a plurality of alternative arresting elements 20', each of which is formed as rollers 104. The alternative arresting elements 20' formed as rollers 104 are arranged corresponding to half a mesh width 30 of the braid of the braid unit 14.

[0060] Fig. 8 shows a schematic flow diagram of a method for providing mesh in mining and / or tunneling using the system 56. In at least one method step 106, the device 58 is mounted on the boom 62 of the construction machine 10. In at least one method step 108, the closure elements 22, 32 are moved into the maximum open position. In at least one method step 110, the mesh receiving device 12 is moved analogously to an excavator bucket such that a mesh unit 14 is received in the mesh receiving space 34. For this purpose, the mesh insertion aid element 46 is moved under the mesh unit 14 by a movement of the boom 62 and then slightly tilted. Alternatively, the mesh unit 14 can also be inserted manually into the mesh receiving space 34. In at least one further method step 112, the closure elements 22, 32 are closed.In at least one further method step 114, the mesh is pulled out of the mesh dispensing opening 18. This can be done manually, for example. The restraining elements 20 are elastically bent so that they exert pressure on the mesh. In at least one method step 60, uncontrolled mesh dispensing is prevented by exerting pressure on the mesh. In at least one method step 116, the mesh is fastened at a first location on the rock face 68. This can be done, for example, with the aid of the further boom 64 of the construction machine 10. In at least one further method step 118, the device 58 is moved further along the rock face 68 by the boom 62.

[0061] In this process, the mesh, which is already secured to the rock face 68 at the first location, is further pulled out of the mesh receiving device 12. In at least one further method step 120, the further extended section of the mesh is secured, e.g., with the aid of the second boom 64, to a second location on the rock face 68. The last two method steps 118, 120 are repeated several times until an entire mesh path formed by the mesh unit 14 is anchored to the rock face 68. In the best case, the mesh path of the mesh unit 14 extends over the entire length of a tunnel cross-section / gallery cross-section.

[0062] Reference symbol

[0063] 10 construction machines

[0064] 12 Braiding device

[0065] 14 braid unit

[0066] 16 braiding opening

[0067] 18 braid dispensing opening

[0068] 20 inhibitor

[0069] 22 locking element

[0070] 24 guide rail

[0071] 26 Main direction of extension

[0072] 28 Braid output opening end

[0073] 30 mesh size

[0074] 32 Additional locking element

[0075] 34 Mesh receiving space

[0076] 36 Wall

[0077] 38 Lightweight recess

[0078] 40 protection units

[0079] 42 Outside

[0080] 44 support element

[0081] 46 Braid insertion aid

[0082] 48 storage units

[0083] 50 fastening unit

[0084] 52 Main direction of extension

[0085] 54 stiffening element

[0086] 56 Systems

[0087] 58 Device

[0088] 60 process steps

[0089] 62 booms

[0090] 64 Additional boom

[0091] 66 drill rock face

[0092] Wendel

[0093] leg

[0094] leg

[0095] Bending point

[0096] Bending angle

[0097] Diamond-shaped mesh

[0098] Longitudinal direction

[0099] Track width

[0100] axial direction

[0101] stiffening element

[0102] Wall

[0103] circumferential direction

[0104] cross brace

[0105] chamfer

[0106] Width 00 Width 02 End 04 Roll 06 Process step 08 Process step 10 Process step 12 Process step 14 Process step 16 Process step 18 Process step 20 Process step

Claims

Claims: Device (58) for supplying braids by means of a construction machine (10), in particular in mining and / or tunneling, with at least one braid receiving device (12) which is designed to receive and at least partially enclose a braid unit (14) and which has a braid receiving opening (16) and a braid dispensing opening (18), characterized in that at least the braid dispensing opening (18) is provided with at least one inhibiting element (20) which is designed to prevent uncontrolled braid dispensing. Device (58) according to claim 1, characterized in that the inhibiting element (20) is elastically designed. Device (58) according to any one of the preceding claims, characterized in that the inhibiting element (20) is designed to apply pressure to at least a part of the braid.Device (58) according to claim 3, characterized in that the inhibiting element (20) is provided to apply the pressure to at least the part of the braid which is currently exiting the braid dispensing opening (18).

5. Device (58) according to one of the preceding claims, characterized in that the locking element (20) is arranged on the braid receiving device (12) such that the locking element (20) covers the braid dispensing opening (18) at least partially, at least in an unloaded state, to a large extent.

6. Device (58) according to one of the preceding claims, characterized in that the locking element (20) is interchangeably attached to the braid receiving device (12).

7. Device (58) according to one of the preceding claims, characterized in that the braid receiving device (12) has at least one, in particular movably mounted, closing element (22) for at least partially closing the braid receiving opening (16).

8. Device (58) according to claim 7, characterized in that the braid receiving device (12) has at least one guide rail (24) which is provided to guide the closure element (22) on a circumference of the braid receiving device (12).

9. Device (58) according to claim 7 or 8, characterized in that the closure element (22) in a closed state limits the mesh dispensing opening (18) section by section.

10. Device (58) at least according to claims 3 and 7, characterized in that the locking element (22) is provided for adjusting the pressure applied by the locking element (20).

11. Device (58) according to one of claims 7 to 10, characterized in that the closure element (22) is significantly narrower than the mesh receiving opening (16) in a main extension direction (26) of the mesh receiving opening (16).

12. Device (58) at least according to claim 9, characterized in that the inhibiting element (20) is arranged at a mesh dispensing opening side end (28) of the closure element (22).

13. Device (58) according to one of the preceding claims, characterized in that the locking element (20) and / or the closing element (22) has a width (98, 100) which corresponds to at least one mesh size (30) of the mesh provided for provision.

14. Device (58) according to one of claims 7 to 13, characterized in that the braid receiving device (12) has at least one further closure element (32), in particular one that is at least substantially identical to the closure element (22).

15. Device (58) according to one of the preceding claims, characterized in that the braid receiving device (12) forms an at least substantially cylindrical braid receiving space (34) which is provided to receive at least the braid unit (14). Device (58) according to one of the preceding claims, characterized in that the braid receiving device (12) has an extra-wide braid receiving chamber (34), particularly in relation to the web widths (84) of braid units (14) that can be provided by the braid receiving device (12), which is designed to provide a tolerance range for varying packing widths of braid units (14), particularly of otherwise identical design. Device (58) according to one of the preceding claims, characterized in that at least one wall (36) of the braid receiving device (12) has lightweight recesses (38). Device (58) according to one of the preceding claims, characterized by a protective unit (40) which covers at least a part of an outer surface (42) of the braid receiving device (12) to prevent injury and / or contamination.Device (58) according to one of the preceding claims, characterized in that the braid receiving device (12) has a support element (44) for positioning the braid receiving device (12) on a substrate.

20. Device (58) according to one of the preceding claims, characterized in that at least one area of ​​the braid receiving device (12) limiting the braid receiving opening (16) has a braid insertion aid element (46) which is provided in particular to support the insertion of the braid unit (14) into a braid receiving space (34) of the braid receiving device (12).

21. Device (58) according to one of the preceding claims, characterized in that the braid receiving device (12) has a bearing unit (48) for rotatable storage of braid roll center rods.

22. Device (58) according to one of the preceding claims, characterized in that the braid receiving device (12) has a fastening unit (50) for fastening to the construction machine (10).

23. Device (58) according to one of the preceding claims, characterized in that the braid receiving device (12) has stiffening elements (54) extending parallel to a main extension direction (52) of the braid receiving device (12).

24. Device (58) according to one of the preceding claims, characterized in that the locking element (20') is designed as a roller (104). Device (58) according to claim 24, characterized by a plurality of locking elements (20') designed as rollers (104), which are arranged according to a mesh size (30) or half a mesh size (30) of the braid unit (14) provided for the provision. System (56) with the device (58) according to one of the preceding claims and with at least one braid unit (14), in particular a braid roll. System (56) according to claim 26 with a construction machine (10) provided for laying braids, wherein the device (58) is rigidly connected to the construction machine (10). Method for providing braids, in particular in mining and / or tunneling, by means of a device (58) according to one of claims 1 to 25 or by means of a system (56) according to one of claims 26 or 27, characterized in that uncontrolled braid dispensing is prevented in at least one process step (60).

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