EP4336015A1 - Mount for self-propelled ground drilling apparatus - Google Patents

Abstract

The invention relates to a mount with a receptacle for a self-propelled earth drilling device for arrangement in a construction pit, the mount being designed to be clamped in the excavation pit, and at least two front-side, opposite sections of the mount being connected to one another by means of at least one fluid cylinder or linear motor, wherein the at least one fluid cylinder or linear motor is designed to move the at least two sections relative to one another and a method for arranging a mount in a construction pit, the mount having a receptacle for an earth drilling device, and the mount is designed to be clamped in the excavation pit , and at least two opposite sections of the mount are present, which are connected to one another by means of at least one fluid cylinder or linear motor, and the at least one fluid cylinder or linear motor moves the at least two sections relative to one another, so that the mount is braced in the excavation pit.

Description

The invention relates to a mount with a receptacle for a self-propelled earth drilling device for arrangement in an excavation pit, a system comprising an aforementioned mount and a self-propelled earth drilling device, and a method for arranging a mount in an excavation pit, the mount having a receptacle for an earth drilling device.

Mounts for earth drilling devices are known, which are arranged in excavation pits and are fixed using earth nails. Fixing it using pegs leads to a stable arrangement of the carriage. However, it has been found that, among other things, when the pegs are driven into the ground, the integrity of a line and/or a channel arranged in the ground can be damaged. Furthermore, the use of pegs to fix the mount requires that the excavation pit in which the mount is arranged has a minimum size that allows a user to be in the excavation pit.

The invention is based on the object of creating a mount for a self-propelled earth drilling device, a system having such a mount and a method for arranging a mount in an excavation, in which, in particular, fixation in the excavation improves the weight of the mount reduced, the time required to fix the mount in the excavation pit is reduced, the volume of the excavation pit is reduced, the personnel effort for fixing the mount in the excavation pit is reduced reduced and/or possible dangers when fixing the carriage in the excavation pit can be minimized.

The core idea of the invention is to fix a mount for a self-propelled earth drilling device in an excavation pit by bracing the mount in the excavation pit against the walls of the excavation pit. For the bracing, at least one fluid cylinder or at least one linear motor, in particular two fluid cylinders or two linear motors or at least one fluid cylinder and at least one linear motor, is used, which extends or extends two front-side, opposite sections of the carriage against one another. The mount can be braced directly and indirectly against two walls of the excavation pit by means of the at least one fluid cylinder or linear motor. A contact pressure can be transferred through the sections to the walls of the excavation pit. It is not necessary for the carriage to come into contact with the bottom of the excavation pit, as the carriage can be held at a desired height due to the tension against the wall of the excavation pit. A floating arrangement of the carriage in the excavation pit is possible, so that lines or channels in the ground, in particular power and/or gas lines, whose integrity should not be impaired, can remain untouched, since there is no need to use pegs to fix the carriage can be. There is added value through the use of the mount, which does not only have to relate to a single aspect, but by bracing the mount in the excavation pit, synergistic effects are possible, which, for example, give the user a simpler or structurally smaller design Provide a carriage or excavation pit, but can also improve handling.

The invention creates a mount with a receptacle for a self-propelled earth drilling device for placement in a construction pit. The carriage is designed to be braced in the excavation pit. At least two front-facing, opposing sections of the mount are connected to one another by means of at least one fluid cylinder or linear motor. The fluid cylinder(s) or linear motor(s) is/are designed to move the at least two sections relative to one another.

The term “carriage” in the sense of the invention includes any type of frame, frame or carrier which is suitable for accommodating a self-propelled earth drilling device. The self-propelled earth drilling device can be aligned more precisely using the mount and, if necessary, recoil can be reduced. The carriage has a holder for the self-propelled earth drilling device. Using the mount, an efficient start or efficient introduction of the earth drilling device into the ground is possible.

The term "receptacle" includes an area or section of the carriage in which the self-propelled earth drilling device can be inserted, inserted and / or arranged before it is driven into the ground. The term "receptacle" includes a technical element on which or on on which the self-propelled earth drilling device can rest, be inserted or arranged, wherein the self-propelled earth drilling device can be at least partially surrounded by the receptacle along its circumference. The earth drilling device is supported by the holder. The design of the receptacle can be such that an opening or recess is provided in the receptacle for feeding the earth drilling device, for example in the form of a hose, in particular a fluid hose, with which fluid can be supplied for operating the earth drilling device. The opening or recess can be provided at the end. The receptacle can have a stop, in particular for the rear area of the housing of the earth drilling device. It is also possible for a stop or several stops for an external structure to be present on the housing of the earth drilling device, in particular on the circumference of the housing. The structure may include one or more recesses on the housing of the earth drilling device. The depressions can be arranged distributed around the circumference along a cross section and/or along the longitudinal axis. The receptacle can be designed for a frictional and/or positive connection with the earth drilling device, which enables the earth drilling device to leave the receptacle in a directed manner during operation of the earth drilling device (during propulsion). In particular, it can be provided that there can be a positive connection in the receptacle for the starting phase of the earth drilling device and a frictional connection after the starting phase. The receptacle can have an opening, recess or opening at one end, which is designed to allow the earth drilling device to pass through in the direction of advance when used as intended. It can be provided that the receptacle is arranged in one of the sections in such a way that the earth drilling device to be inserted or arranged in the receptacle protrudes at the end, in particular at the front, of the carriage. The distance of the receptacle from an end face can be less than the length of the housing of the earth drilling device.

For the purposes of the invention, the term “self-propelled earth drilling device” includes an earth drilling device referred to as a ram drilling device or earth rocket. Such earth drilling devices work to displace soil and can in particular impact a line or a pipe into the soil. The self-propelled earth drilling devices usually have a drill head tip designed as a chisel, which is arranged in a housing and is acted upon at the end by a percussion piston, whereby the drill head tip can be arranged longitudinally movably or fixedly in the housing. For example, is off DE 101 12 985 A1 a striking head is known which has a chisel with a striking tip for contacting the soil at one end and an anvil for the action by means of a striking piston at the other end has. The chisel is arranged in a hole in a base, which also serves as an adapter for screwing into an impact device body. To operate the percussion piston, which moves back and forth in the housing, compressed air is usually supplied to the housing by means of a compressed air hose arranged at the end of the housing.

The term "excavation pit", which can in particular be designed as a starting excavation pit, includes, within the meaning of the invention, any type of space below the earth's surface, including excavated and existing pits. The excavation pit can be designed to be open at the top. A "excavation pit" can have a rectangular base area, and since the excavation pit can be created in particular by excavating in "soft" soil, the excavation pit does not have to have exactly straight edges, although these cannot be ruled out either. The carriage with the earth drilling device can make it possible to be arranged in a rectangular excavation pit, the aspect ratio of which is larger than 2, in particular larger than 3, in particular larger than 4, in particular larger than 5, in particular larger than 6, in particular larger as 6.5. In a particularly preferred embodiment, the larger of the two sides of the rectangular excavation pit has a length of 100 cm to 160 cm, in particular 110 cm to 150 cm, in particular 120 cm to 140 cm, in particular 130 cm to 140 cm. In a particularly preferred embodiment, the smaller of the two sides of the rectangular excavation pit has a length of 15 cm to 60 cm, in particular from 15 cm to 50 cm, in particular from 15 cm to 40 cm, in particular from 15 cm to 30 cm, in particular 15 cm up to 25 cm.

In the sense of the description, the term “braced” includes an arrangement of the sections of the mount in which a force is exerted between the sections so that a contact pressure of the sections can be exerted against the walls of the excavation pit. In particular, it can be provided that the sections come into direct or indirect contact with the walls of the excavation pit. It can be provided that the direct or indirect contact changes during the drilling of the earth bore by the earth drilling device. Permanent direct contact of one of the at least two sections can preferably be provided for the bracing.

It can be provided that the self-propelled earth drilling device, when inserted into or on the receptacle, protrudes at the end on an end face of the carriage, in particular in the longitudinal direction of the carriage or in the advancing direction of the earth drilling device. It can be provided that the bracing can take place via a contact of one of the at least two sections of the carriage, which is spaced in particular from the section with the receptacle, and a wall of the excavation pit as well as a contact of the (protruding) earth drilling device with a wall of the excavation pit . By means of the earth drilling device inserted or inserted into the receptacle, at least one There is an indirect contact that can enable the transfer of the contact pressure.

It can be provided that an operative connection to a wall of the excavation pit can be established by means of an earth drilling direction that protrudes above the carriage and is arranged in the receptacle. A contact pressure can be transferred to the wall by means of a frictional and/or positive fit in or on the receptacle. In the sense of the description, the term “active connection” includes a power flow that can be applied to the wall of the excavation pit starting from the fluid cylinder and/or linear motor. The fluid cylinder or linear motor can act on the section with the receptacle and the receptacle on the earth drilling device.

When introducing the earth drilling device into the ground, it can be provided that the carriage to support the earth drilling device is not statically arranged in the excavation pit, but rather follows the drilling progress or introduction of the earth hole by means of the earth drilling device. The receptacle can be moved or moved relative to one of the sections while the earth drilling device is being inserted into the ground by means of the fluid cylinder or linear motor to maintain the tension. The sections of the carriage can be moved further apart when the earth drilling device is inserted into the ground in order to maintain the contact pressure and/or the operative connection. A control and/or regulation system can be used which controls and/or regulates the contact pressure to a value and thus acts on the fluid cylinder and/or linear motor accordingly.

It can be provided that there is no or only a slight load on the area of the excavation pit by means of the carriage. The mount can be fixed or clamped to the walls of the excavation pit by "moving apart" the at least one fluid cylinder or linear motor, whereby unwanted loosening due to frictional connection can be prevented. It is not necessary for the carriage to rest on the base of the excavation pit. However, contact with the base surface through the carriage is not ruled out. A frictional connection can be achieved in which the carriage is pressed with the earth drilling device against the excavation pit, in particular the walls of the excavation pit.

If it is described that two frontal, opposite sections of the carriage are provided, the at least two sections come into operative connection with one wall of the excavation pit indirectly via an earth drilling device that may protrude and/or direct or direct contact of the sections. In this context, “front side” means that the sections can be provided on the sides of the carriage, the surface normals of which are essentially parallel or at an angle of less than 10°, in particular less than 5°, to the longitudinal axis of the Mount is arranged. The carriage can be braced in the direction of introducing the earth drilling device. In particular, the direction in which the earth drilling device can be introduced into the ground can essentially coincide with the longitudinal axis of the mount or run essentially parallel to it or at an angle of less than 10°, in particular less than 5°. For bracing, the two sections are opposite one another, ie one section can come into active connection with one of the walls of the excavation pit, which in particular lie opposite one another.

In the sense of the description, the term "opposite" includes two sections which have a (in particular outer) contour, the surface normals of which enclose an angle with one another that is less than 80°, in particular less than 70°, in particular less than 60°, in particular less than 50°, in particular less than 40°, in particular less than 30°, in particular less than 20°, in particular less than 10°. An angle of less than 10°, in particular less than 5°, can be particularly preferred in order to have defined to create conditions.

In order to define the conditions for fixing the mount, it can be provided that the (outer) contour of the two sections that contact a wall of the excavation pit or come into operative connection with it runs essentially in a straight line. However, it can also be provided that there is a slight curvature or another course, which can be polygonal, for example. It can also be provided that a structured contacting surface or a contact mechanism is provided on one or more sections.

A mechanical connection element can be provided in or on the sections for the connection or suspension of the at least one fluid cylinder or linear motor. It can be provided that the sections each have an opening for connecting or suspending each fluid cylinder and/or linear motor. The opening can in particular be designed as a through opening through which, in particular, a front end of the fluid cylinder and/or linear motor can be at least partially passed through.

The end-side geometry of the sections, which can come into contact or operative connection with the wall of the excavation pit or is adjacent to it in the excavation pit during intended use, can be selected in such a way that the highest possible moment of resistance against (bending) is present. It can be provided that at least one of the at least two sections has a U-profile which is aligned such that the legs are essentially parallel or at an angle of less than 10°, in particular less than 5°, to the longitudinal axis of the at least one Fluid cylinder and/or linear motor run.

The sections can be screwed to the fluid cylinder or linear motor. In particular, it can be provided that it is sufficient to (simply) screw the cylinder-side end of the fluid cylinder or linear motor to the section.

At the end of the fluid cylinder on the piston rod side, provision can be made to fix it to the section using two counter-locked nuts. It can also be provided that the nuts are glued together. This can be advantageous, particularly in the case of strong vibrations, in order to prevent the piston rod from becoming detached from the section.

In the sense of the description, the term “fluid cylinder” includes a working cylinder that can be operated or operated with a fluid, which can include a cylinder and a piston rod that is movable in relation to the cylinder, in particular linearly. The fluid cylinder can be designed as a single-acting cylinder or as a double-acting cylinder. The fluid can be a liquid or a gas, so that the term "fluid cylinder" includes both pneumatic cylinders and hydraulic cylinders. If more than one fluid cylinder is provided, the fluid cylinders can be different or of the same type.

If it is described that the at least one fluid cylinder or linear motor is designed to move the at least two sections relative to one another, this is understood to mean that the at least two sections are moved relative to one another in such a way that the distance between the two sections can be increased, to brace the carriage by pressing a section against a wall of the excavation pit.

An embodiment of the at least one fluid cylinder as a double-acting fluid cylinder enables an adjustment of forces, a controlled movement of the piston rod to the cylinder and / or a regulation of the movement of the piston rod to the cylinder, in that two active directions of movement of the piston rod are possible.

In a preferred embodiment, the at least one fluid cylinder is a pneumatic cylinder, whereby the compressed air source that is usually present for the operation of the earth drilling device can also be used for the at least one fluid cylinder in order to clamp the carriage. In a particularly preferred embodiment, two fluid cylinders are provided, which can in particular be arranged essentially symmetrically to one another in order to be able to extend the at least two sections essentially symmetrically to one another, depending on the design of the sections or the (outer) contour of the at least two Sections and/or shaping the wall of the excavation pit with which one of the sections comes into contact, it may not necessarily be possible to extend it symmetrically in the braced state.

The fluid cylinder as a pneumatic cylinder can be designed to be pressurized up to a pressure of up to 15 bar. When designed as a hydraulic cylinder, up to 700 bar is possible. The contact force of the sections on the wall of the excavation pit can be varied by setting or regulating pressure levels. The fluid cylinder can be designed in such a way that at 6 bar operating pressure it generates a contact force in the range of 270 to 320 N, in particular 280 to 310 N, in particular 290 to 300 N.

The fluid cylinder can be designed to enable a stroke of 100 mm to 1000 mm, in particular 200 mm to 900 mm, in particular 300 mm to 800 mm, in particular 400 mm to 700 mm, in particular 400 mm to 600 mm. In a particularly preferred embodiment, the fluid cylinder enables a stroke of approximately 500 mm.

For aligning the mount and the subsequent bracing of the mount in the excavation pit, provision can be made to provide a contacting mechanism that enables a) telescoping and/or b) different pressure levels of bracing.

For the alignment of the mount and the subsequent bracing of the mount in the excavation pit, it can preferably be provided to set different "pressure levels" of the at least one fluid cylinder. For example, it may still be possible to align the mount at one of the pressure levels. It may be possible to choose such a low pressure level that there is already a "low" tension, but the contact points or surfaces of the sections and / or the earth drilling device, which come into contact with a wall of the excavation pit, against the Wall can be moved laterally or laterally, for example to adjust the height and / or the angle of the holder for the earth drilling device for the earth drilling. The aligned mount can then be “finally” braced in the excavation pit at a pressure level that is higher in extent or strength, so that any possible displacement of the mount relative to the wall of the excavation pit can be largely or completely prevented.

In a preferred embodiment, the receptacle for the self-propelled earth drilling device is formed on one of the sections. One of the sections can have the receptacle completely, so that the receptacle only needs to be formed on one of the sections. A "division of tasks" can be achieved in that one of the sections of the mount has the recording in its entirety or contains it completely. This can simplify handling, transport, construction and/or manufacturing.

The receptacle can be aligned in such a way that the longitudinal axis of the receptacle runs essentially parallel to the longitudinal axis of the at least one fluid cylinder or linear motor or at an angle of less than 10°, in particular less than 5°, as a result of which the longitudinal axis of the receptacle can be inserted into the receptacle The earth drilling device to be inserted or arranged must be substantially in accordance with the longitudinal axis of the at least one fluid cylinder or linear motor. In particular, when two fluid cylinders or linear motors are present, the receptacle can be located between the fluid cylinders and/or linear motors, so that the longitudinal axis of the two fluid cylinders and/or linear motors and the longitudinal axis of the receptacle are essentially parallel to one another or at an angle of less than 10°, in particular less than 5°, to each other.

In a preferred embodiment, the mount is made of sheet metal so that the weight of the mount can be kept low. In addition, simple production is possible.

In a particularly preferred embodiment, the at least one receptacle has at least two metal sheets connected to one another. This allows a simple design of the receptacle or the section that can contain the receptacle to be achieved. Simple construction and planning with good stability can be achieved.

In a particularly preferred embodiment, at least one of the at least two sections of the mount can be made of or have a sheet metal, which means that a simple construction and planning with good stability can be achieved.

For the purposes of the invention, the term “sheet metal” is understood to mean a body, in particular made of metal, whose width and length are much larger than its thickness. The metal can in particular be steel, most preferably structural steel or stainless steel. Such bodies can be formed and joined using simple means. By using sheet metal or sheets, the carriage can be manufactured using a construction that is easy to handle or create. The construction using sheet metal can create a link between the bracing and the holder of the earth rocket.

It was recognized that a sheet metal construction is possible, although relatively high forces act on the carriage. It was determined that due to the possible long length of the mount or in particular the section that contains the mount, a subdivision or division into at least two sheet metal parts of the section with the recording is advantageous. The at least two sheet metal parts can be joined together. In particular, the at least two sheet metal parts can be screwed together. The sheets, especially when using structural steel, can have a thickness of 3 mm. It is also possible for the sheets to have a thickness of 2 mm, especially when using stainless steel. For higher-strength steels or metals, a thickness of less than 2 mm may be sufficient.

In a particularly preferred embodiment, the sheets connected to one another have an overlap area which includes an end face of the receptacle. This can create good stability in an area that is exposed to increased stress. In particular, the overlap area can be arranged such that the rear area of the self-propelled earth drilling device faces the overlap area or rests against the rear area of the housing of the self-propelled earth drilling device in the starting position or starting position of the self-propelled earth drilling device. Good stability can be achieved by forming an overlap area. The overlap area can be provided on an end face of the receptacle that is spaced from the end face of the section that includes the receptacle.

In a particularly preferred embodiment, the sheets define the edge of the receptacle and the receptacle has an opening. In the preferred embodiment, the sheets can be connected by means of a base plate arranged transversely to the longitudinal direction and at a distance from the opening. The base plate can be used to counteract "migrating" of the sheets or sheet metal parts, which could occur in particular with fluid cylinders or linear motors subjected to full load. A receptacle can be created in which the self-propelled earth drilling device can be placed in a starting position or before the earth hole is drilled into the ground and can also be easily removed again after the earth hole has been drilled. In particular, it may be possible for the receptacle to be formed from a sheet metal or to have sheets. The base plate can in particular also consist of a sheet metal or have a sheet metal. A stable receptacle can be formed that has an upward opening that allows the self-propelled earth drilling device to be easily inserted into and/or removed from the receptacle.

In a preferred embodiment, at least one sensor is arranged in the receptacle, which contacts the earth drilling device. The transducer offers the possibility of at least mechanical decoupling between the receptacle and the earth drilling device. For example, the recording can be made using the at least one sensor can be adapted to different earth drilling devices without having to change the holder.

In a preferred embodiment, the at least one sensor is designed for a frictional and/or positive connection, in particular with one end, of the earth drilling device. In this way, it can be achieved that the carriage can be moved and/or tilted with the self-propelled earth drilling device accommodated in the receptacle or arranged in angular positions other than a horizontal orientation, without the self-propelled earth drilling device being changed in its relative position to the carriage. In addition, a frictional and/or positive connection offers the possibility of an efficient force effect for bracing and/or starting the earth drilling device.

The at least one sensor can in particular correspond to the shape contour of the end region of the earth drilling device, which has the feed by means of the fluid hose in order to transmit a force via a positive connection. The carriage can transmit the force of the bracing to the earth drilling device via the at least one sensor. The at least one sensor can in particular have sufficient space for removing the hose.

It can be provided that more than one sensor for an earth drilling device is provided in the receptacle. For example, it is possible to provide a sensor for the rear end (the end with the fluid hose) and to provide a further sensor for the middle or the other end of the earth drilling device in order to relieve one-sided storage of the earth drilling device. The further sensor can in particular be adapted to the outer diameter of the earth drilling device.

In a preferred embodiment, the at least one sensor has a plastic, whereby the earth drilling device can be electrically decoupled from the receptacle. For example, it can be achieved that even if voltage or current drops or is applied to the earth drilling device, this is not transferred to the holder or the mount.

The use of at least one sensor in the receptacle, which can at least electrically decouple the earth drilling device from the receptacle or the mount, prevents electrical current from being passed to the user, especially when the earth drilling device hits a live line. The plastic polyoxymethylene (POM) can be used as the material for the sensor.

In a preferred embodiment, the receptacle and/or the at least one transducer has at least one fixing element, by means of which the position of the at least a transducer can be fixed in the receptacle. This can ensure that the transducer remains fixed in relation to the receptacle even when the earth drilling device starts up. The transducer can, for example, be screwed to the receptacle. It can also be provided that the receiver has through holes through which fixable locking pins can be inserted, which in turn can be fixed in position and position on the receiver. Additionally or alternatively, the receptacle can have at least one tab that can be screwed to the receptacle, which can in particular have a section which, when used as intended, at least partially covers or closes the receptacle upwards or in the direction of the removal option of the earth drilling device.

In a particularly preferred embodiment, optional release can be possible using the fixing member, whereby a transducer can be changed. A fixation of the transducer with the sections or the section can be achieved, for example, by means of a screw connection. In addition to maintenance, the mount can be adapted to the self-propelled earth drilling device in addition or as an alternative to this, in that different sensors can be provided, which can be fixed in the receptacle and are adapted to different earth drilling devices.

In the sense of the description, adapting the sensor to the earth drilling device means providing a shape of the sensor for the earth drilling device, which is adapted to the external shape of the earth drilling device in order to enable a positive connection. A "universal" receptacle can be created, which is adapted to different earth drilling devices, which differ in particular in their external dimensions, by means of different or different transducers.

Several, i.e. different, sensors can be provided, which have the same external dimensions and can be arranged in the same receptacle. By using different transducers, each adapted to a different self-propelled earth boring device, different self-propelled earth boring devices can be used in the same carriage.

In a preferred embodiment, the at least one fluid cylinder or linear motor is at least partially arranged in a stabilization tube, which has an elongated hole for the passage of at least one connection for the fluid. The elongated hole is designed with an expansion in the form of a mounting opening for the fluid connection. This can ensure that the high forces required to brace the carriage in the excavation pit are taken into account. The fluid cylinder or linear motor as such experiences a “reinforcement” in the form of the stabilization tube. The stabilization tube can absorb transverse forces that occur. Means The mounting opening allows the use of a tool, for example in the form of a socket, in order to fix the fluid connection or the fluid connections using a possibly existing external hexagon. To assemble the fluid connection or fluid connections, the fluid cylinder can be arranged in the stabilization tube and the connection openings can be moved into the area of the assembly opening. In the form of the expansion, the mounting opening offers the possibility of accessing the opening with a tool or attaching a tool.

The material of the stabilization tube can have a dimension and/or material that is suitable for absorbing the transverse forces. Aluminum, steel, stainless steel or similar can be used as the material for the stabilization tube.

In a particularly preferred embodiment, the elongated hole of the stabilization tube faces the base of the excavation pit when the stabilization tube is mounted or points away from the removal opening of the receptacle. The surface normal of the elongated hole runs in particular transversely to the longitudinal extent of the stabilization tube or the fluid cylinder arranged in the stabilization tube.

In a particularly preferred embodiment, a stabilization tube is provided for each fluid cylinder or linear motor and the fluid cylinder or linear motor is arranged in a stabilization tube.

In a preferred embodiment, a plain bearing is arranged between the stabilization tube and the at least one fluid cylinder or linear motor. The inner diameter of the plain bearing can essentially correspond to the outer diameter of a section of the fluid cylinder, in particular the outer diameter of the cylinder (tube) of the fluid cylinder, and the outer diameter of which essentially corresponds to the inner diameter of the stabilization tube. This can counteract wear. Despite the protective function of the stabilization tube that surrounds the fluid cylinder, the cylinder can be guided by the piston rod and thus stabilized. Bending forces acting on the fluid cylinder can be deflected by the plain bearing.

The plain bearing can be made from materials known for plain bearings and can have plastic, brass or the like.

In a preferred embodiment, the sliding bearing is held by means of a screw connection between the stabilization tube and an open cover of the stabilization tube. This allows for easy assembly, simple construction and/or easy handling can be achieved. Alternatively or additionally, the plain bearing can also be easily replaced.

The plain bearing, which can be arranged in the stabilization tube, can be a slotted cylindrical profile, which can have steps that are offset from one another. The staggered gradations can enable the plain bearing to be attached to the piston rod or cylinder piston and can ensure good running behavior. The reduced contact area can reduce friction and reduce wear. The plain bearing can be inserted into the shoulder of the stabilizing tube via the cylinder surface and screwed on using a cover. The end of the stabilizing tube is welded over an aluminum plate and screwed to the steel section.

In a preferred embodiment, the stabilization tube is surrounded by a (further) plain bearing which is connected to the receptacle in order to stabilize the receptacle. In this way, both the stabilization tube and the receptacle can be stabilized by the stabilization tube and receptacle supporting each other. Since fewer transverse forces act on the stabilization tube as such, a connection to the receptacle allows transverse forces acting on the receptacle to be diverted to the stabilization tube. The provision of the stabilization tube not only serves to stabilize the fluid cylinder or linear motor, but also to stabilize the receptacle through the connection to the receptacle. The stabilization tube can have a synergistic effect.

The additional plain bearing can also be made from a material known for plain bearings.

Bending moments can be compensated or absorbed using the additional plain bearing. It can be provided that there is an additional plain bearing for each fluid cylinder/linear motor or each stabilization tube. The (further) plain bearing is arranged around the stabilization tube and connected to at least one of the at least two sections, the (further) plain bearing being connected in particular to the section which contains the receptacle. In particular, the (further) plain bearing can be connected to the receptacle. A sheet metal or sheet metal element can be provided for connecting the (further) plain bearing to the receptacle. The plain bearing comprising the stabilization tube can prevent movements between the sections and the cylinders.

The (further) plain bearing, which can include or encompass the stabilization tube, can in particular have an opening so that the plain bearing does not completely enclose the stabilization tube. In particular, an opening can be provided be that is directed to the side, that is, the surface normal of the opening is directed transversely to the longitudinal axis of the stabilization tube. Such an opening can counteract contamination of the plain bearing; Dirt can escape through the opening.

In a preferred embodiment, a contact mechanism is provided on the front side of one of the sections, which has at least two different contact areas with which the contact mechanism can contact the excavation pit. The contact mechanism can form a “clean finish” to the wall of the excavation pit, which is contacted by means of the contact mechanism. Different pressure levels can be used to differentiate between aligning and bracing. To make contact with a wall, it is possible to automatically vary between two different contact surfaces, for example using a spring mechanism. It can be provided that rotation of the two contact surfaces relative to one another can be prevented by means of an elongated hole and a pin that interacts with the elongated hole, so that the two contact surfaces can move exclusively in the axial direction.

It is possible, for example, for two different forces to be exerted on the excavation pit or the wall of the excavation pit by means of the contact mechanism. While one of the contact areas enables a displacement or displacement or change of the position of the mount, in particular laterally to the wall that is contacted, within the excavation pit, the other of the contact areas achieves a stronger fixation, which enables the action of a user or . From the outside on the carriage, a shift or a change in the position and/or position of the carriage no longer has a significant influence.

It can be provided that the first contact area has a smooth surface, while the second contact area has a structured surface that at least partially penetrates into the wall of the excavation pit or into the soil. For example, grooves, points, spikes or similar structures can be designed on the second contact area, which are at least partially pressed into the ground in order to prevent the contact area from being displaced relative to the wall.

In a preferred embodiment, a force (spring force) acts between the contact areas, the direction of which has a portion that acts in a direction essentially parallel or at an angle of less than 10° to the longitudinal axis of the at least one fluid cylinder/linear motor. This can ensure that a force acts between the two contact areas, which must be overcome, that first the first contact area can contact the wall of the excavation, by means of which a change in the position on the wall of the excavation is possible, and after exceeding the force the second contact area contacts the wall, and the displacement is made more difficult since the second contact area now contacts the wall, wherein the second contact area can have the structuring and is pressed against the wall with a greater contact force.

In a preferred embodiment, a rod-shaped element of a targeting device for aligning the mount is fixedly arranged on at least one of the sections. This allows a targeting device to be connected directly to the mount; There is no need for a separate, complete aiming device. Additionally or alternatively, it can be provided to use the rod-shaped element as a handling element with which, for example, the carriage can be lowered into the excavation pit or handled in some other way. The rod-shaped element can preferably be aligned transversely to the receptacle. In particular, a telescopic sight or the like can be firmly arranged on the rod-shaped element in order to enable alignment.

The invention also provides a system comprising a carriage described and a self-propelled earth drilling device.

In a particularly preferred embodiment, the system can also have more than one self-propelled earth drilling device, with the earth drilling devices differing in terms of their external dimensions. The mount and the receiver make it possible to adapt the mount to the different earth drilling devices.

The invention also provides a method for arranging a mount in an excavation pit, the mount having a receptacle for an earth drilling device, and the mount being designed to be braced in the excavation pit. There are at least two opposing sections of the carriage, which are connected to one another by means of at least one fluid cylinder/linear motor, and the at least one fluid cylinder/linear motor moves the at least two sections relative to one another, so that the carriage is clamped in the excavation pit.

The carriage with the earth drilling device can be used in such a way that the carriage with the earth drilling device arranged in or on the receptacle is introduced into the excavation pit and is initially clamped at a desired height. After the housing of the earth drilling device has been partially inserted into the ground, the tension on the mount can be released and the earth drilling device can be aligned. After alignment, the carriage can be tensioned again and the earth drilling device can be inserted further into the ground.

The invention is described in terms of several aspects relating to a mount, a system and a method. The explanations on the individual aspects complement each other, so that the explanations for the mount can also be understood as explanations of the description for the system. With the description of the mount and the system, actions in the sense of the method or process steps relating to the method for arranging a mount in a construction pit are also to be understood or disclosed. The same applies to the description of the method, which also describes or discloses device-side features or system-side features.

In the sense of the description, the naming of a numerical value includes not only the actual numerical value, but also - in order to take into account manufacturing tolerances in particular - a range around the specific numerical value, which is +/-15%, preferably +/-10%, of the specified numerical value can.

In the sense of the description, the term "have" includes both the meaning inherent in the term, that further elements can be provided in addition to the elements mentioned (not an exhaustive list), but also the meaning that the term "have" is synonymous with "consist of" or “formed from” is used.

The above statements, like the following description of exemplary embodiments, do not constitute a waiver of certain embodiments or features.

The invention is explained in more detail below using an exemplary embodiment shown in the drawings.

Fig. 1

in einer isometrischen Ansicht eine Baugrube mit einer Lafette und einer Erdbohrvorrichtung;

Fig. 2

die Darstellung von Figur 1 in einer teilweise geschnittenen Seitenansicht;

Fig. 3

in einer Draufsicht die Baugrube mit der Lafette und der Erdbohrvorrichtung gemäß Fig. 1 und 2, wobei die Erdbohrvorrichtung teilweise in das Erdreich eingefahren ist;

Fig. 4

die Darstellung der Figur 3 in einer teilweise geschnittenen Seitenansicht;

Fig. 5

eine isometrische Ansicht der Baugrube mit der Lafette mit der Erdbohrvorrichtung im verspannten Zustand;

Fig. 6

eine isometrische Ansicht mit einer in einer Baugrube verspannten Lafette, bei der die Lafette gegenüber der Fig. 5 um 90° um ihre Längsachse gedreht ist;

Fig. 7

eine isometrische Ansicht einer Lafette aus den Fig. 1 bis 6;

Fig. 8

einen Teil einer Aufnahme für die Erdbohrvorrichtung in einer isometrischen Ansicht;

Fig. 9

einen Teil der Lafette in isometrischer Ansicht;

Fig. 10

einen Aufnehmer für einen einseitigen Bereich einer Erdbohrvorrichtung in teilweise geschnittener isometrischer Darstellung;

Fig. 11

eine Schnittdarstellung verschiedener Aufnehmer;

Fig. 12

eine Darstellung eines Stabilisierungsrohrs von unten;

Fig. 13

eine Explosionsdarstellung einer Gleitlagerverschraubung einer Kolbenstange im Stabilisierungsrohr;

Fig. 14

eine isometrische Darstellung eines weiteren Geleitslagers für ein Stabilisierungsrohr; und

Fig. 15

einen Kontaktmechanismus einer Lafette der Figuren 1 bis 7 in isometrischer Darstellung.

In the drawings shows:

Fig. 1

an isometric view of an excavation pit with a carriage and an earth drilling device;

Fig. 2

the representation of Figure 1 in a partially sectioned side view;

Fig. 3

A top view of the excavation pit with the carriage and the earth drilling device Fig. 1 and 2 , wherein the earth drilling device is partially retracted into the ground;

Fig. 4

the representation of the Figure 3 in a partially sectioned side view;

Fig. 5

an isometric view of the excavation pit with the carriage with the earth drilling device in the braced state;

Fig. 6

an isometric view with a carriage braced in a construction pit, with the carriage facing the Fig. 5 is rotated 90° about its longitudinal axis;

Fig. 7

an isometric view of a gun carriage from the Fig. 1 to 6 ;

Fig. 8

a part of a holder for the earth drilling device in an isometric view;

Fig. 9

part of the carriage in an isometric view;

Fig. 10

a sensor for a one-sided area of an earth drilling device in a partially sectioned isometric view;

Fig. 11

a sectional view of various transducers;

Fig. 12

a representation of a stabilization tube from below;

Fig. 13

an exploded view of a plain bearing screw connection of a piston rod in the stabilization tube;

Fig. 14

an isometric view of another escort bearing for a stabilization tube; and

Fig. 15

a contact mechanism of a carriage Figures 1 to 7 in isometric view.

Fig. 1 shows a partially sectioned isometric view of a mount 1 for a self-propelled earth drilling device 2 in a construction pit 3 in the ground. The carriage 1 has a receptacle 4 for the self-propelled earth drilling device 2 ( Fig. 7 ). Like this in particular Figures 1 to 6 can be seen that the carriage 1 is designed to be clamped in the excavation pit 3.

The carriage 1 has two frontal, opposite sections 5, 6, which are connected to one another by means of two fluid cylinders 7, 8. The fluid cylinders 7, 8 are designed to move the two sections 5, 6 relative to one another.

The recording 4 is formed on the section 6. To form the receptacle 4 in section 6 or on section 6, two interconnected sheets 9a, 9b are present, which at least partially form the side surfaces of the receptacle 4. There is an overlap area 10 of the two sheets 9a, 9b, which includes an end face of the receptacle 4.

The two sheets 9a, 9b define the edge of the receptacle 4 on both sides. The recording 4 has an upward opening 11. In addition, a base plate 12 is provided, which connects the two sheets 9a, 9b transversely to the longitudinal direction and at a distance from the opening 11.

The Fig. 1 and 2 show schematically the beginning of the drilling into the ground. The carriage 1 is clamped together with the earth drilling device 2 in the excavation pit 3. The fluid cylinders 7, 8 press the section 5 and the earth drilling device 2 towards one wall of the excavation pit 3.

In the Fig. 3 and 4 the earth drilling device 2 has already been partially retracted into the ground and the fluid cylinders 7, 8 have moved the sections 5, 6 further apart. The tension of the carriage is maintained via the contact of the section 5 with the wall and the contact of the earth drilling device 2 with the wall. The recording 4 further supports the earth drilling device 2. The Fig. 5 shows further progress in drilling the earth bore.

In the Fig. 10 a sensor 13 is shown, which is arranged in the receptacle 4 in order to contact the earth drilling device 2 inserted or arranged in the receptacle 4. The sensor 13 is designed for a positive connection with the rear end of the earth drilling device 2.

Fig. 11 shows another sensor 14, which is intended for contacting the center or the other end of the earth drilling device 2. The Fig. 11 shows two different sensors 14 for comparison. The sensors 14 differ in the diameter of the earth drilling device 2 to be picked up.

The sensors 13, 14 are made of plastic.

In the Fig. 7 , 9 and 10 Fixing elements 14 are shown, by means of which the position of the transducers 13, 14 in the receptacle 4 can be fixed.

Fig. 12 shows a stabilization tube 15 in which the fluid cylinder 7, 8 is at least partially arranged. The stabilization tube 15 has an elongated hole 16 for the passage of at least one connection for the fluid, the elongated hole 16 being designed with an expansion in the form of a mounting opening 17 for a fluid connection.

A plain bearing 18 is arranged between the stabilization tube 15 and the at least one fluid cylinder 7, 8 ( Fig. 13 ). The inside diameter of the sliding bearing 18 essentially corresponds to the outside diameter of a section of the fluid cylinder 7, 8, in particular the outside diameter of the piston rod 19 of the fluid cylinder 7, 8. The outside diameter of the sliding bearing 18 essentially corresponds to the inside diameter of the stabilization tube 15. The sliding bearing 18 is by means of a Screw connection between the stabilization tube 15, which has an eye thread 20 at the end, and an open cover 21, which has an internal thread adapted to the external thread 20.

The Fig. 14 shows a further plain bearing 22, which slidably surrounds the stabilization tube 15 and is connected to the receptacle 4 by means of a sheet metal element 23. The sheet metal element 23 contacts the further plain bearing 22 on the side and the receptacle 4 on the front side.

A contact mechanism 24 is provided on the front side of section 5, which has at least two different contact areas 25, 26 with which the contact mechanism 24 can contact a wall of the excavation pit 3. The force of a spring 27 arranged between the contact areas 25, 26 acts between the contact areas 25, 26. The direction of the spring force of the spring 27 has a portion which is in a direction essentially parallel to the longitudinal axis of the at least one fluid cylinder 7, 8 or runs at an angle of less than 10° to the longitudinal axis of the at least one fluid cylinder 7, 8. The contact area 25 is formed on a surface 28 and the contact area 26 is formed on a surface 29. The distance between the surfaces 28, 29 can be changed.

The angular orientation of the surfaces 28, 29 or the contact areas 25, 26 is predetermined by means of an anti-rotation mechanism 30.

The Fig. 1 to 6 show a start of an earth drilling by means of an earth drilling device 2 arranged in the mount 1. First, the earth drilling device 2 is arranged in the receptacle 4 and tensioning takes place by means of the contact mechanism 24 and the drill head tip of the earth drilling device 2. The earth drilling device 2 is started and enters the soil. The fluid cylinders 7, 8 gradually extend and the section 6 comes into contact with the wall of the excavation pit 3.

Claims (18)

Mount (1) with a receptacle (4) for a self-propelled earth drilling device (2) for arrangement in an excavation pit (3), the mount (1) being designed to be clamped in the excavation pit (3), and at least two front-side, opposite sections (5, 6) of the carriage (1) are connected to one another by means of at least one fluid cylinder (7, 8) or at least one linear motor, the at least one fluid cylinder (7, 8) or the at least one linear motor being designed to have at least two Sections (5, 6) to move relative to each other. Mount (1) according to claim 1, wherein the at least one fluid cylinder (7, 8) is a double-acting fluid cylinder. Mount (1) according to claim 1 or 2, wherein the receptacle (4) is formed on one of the sections (7, 8). Mount (1) according to one of claims 1 to 3, wherein the sections (5, 6) are made from at least one sheet. Mount (1) according to one of claims 1 to 4, wherein at least one sensor (13, 15) is arranged in the receptacle (4), which is designed to contact the earth drilling device (2). Mount (1) according to claim 5, wherein the at least one sensor (13, 15) is designed for a positive or frictional connection with one end of the earth drilling device (2). Mount (1) according to claim 5 or 6, wherein the at least one receiver (13, 15) has a plastic. Mount (1) according to one of claims 5 to 7, wherein the receptacle (4) and/or the at least one transducer (13, 15) has at least one fixing member (14), by means of which the position of the at least one transducer (13, 15 ) can be fixed in the holder (4). Mount (1) according to one of claims 1 to 10, wherein the at least one fluid cylinder (7, 8) is at least partially arranged in a stabilization tube (15) which has an elongated hole (16) for the passage of at least one connection for the fluid, wherein the elongated hole (16) is designed with an expansion (17) in the form of a mounting opening for a fluid connection. Mount (1) according to claim 9, wherein a plain bearing (18) is arranged between the stabilization tube (15) and the at least one fluid cylinder (7, 8), the inner diameter of which is essentially the outer diameter of a section of the fluid cylinder (7, 8), in particular the outer diameter of the cylinder tube (19) of the fluid cylinder (7, 8), and the outer diameter of which essentially corresponds to the inner diameter of the stabilization tube (15). Mount (1) according to claim 10, wherein the plain bearing (18) is held by means of a screw connection between the stabilization tube (15) and an open cover (21). Mount (1) according to one of claims 9 to 11, wherein the stabilization tube (15) is surrounded by a plain bearing (22) which is connected to the receptacle (4) in order to stabilize the receptacle (4). Mount (1) according to one of claims 1 to 12, wherein a contact mechanism (24) is provided on the front side of one of the sections (5, 6), which a) has at least two different contact areas (25, 26) with which the contact mechanism ( 24) can contact the excavation pit (3) and/or b) is designed to be telescopic. Mount (1) according to claim 13, wherein a force acts between the contact areas (25, 26), the direction of which has a portion that is in a direction essentially parallel to the longitudinal axis or at an angle of less than 10°, in particular less than 5° acts on the longitudinal axis of the at least one fluid cylinder (7, 8). Mount (1) according to claim 13 or 14, wherein the contact areas (25, 26) are each formed on a surface (28, 29), the distance from which can be changed. Mount (1) according to one of claims 1 to 15, wherein a rod-shaped element of a targeting device for aligning the mount (1) is fixedly arranged on at least one of the sections (5, 6). System comprising a carriage (1) according to one of claims 1 to 16 and a self-propelled earth drilling device (2). Method for arranging a mount (1) in an excavation pit (3), the mount (1) having a receptacle (4) of an earth drilling device (2), and the mount (1) is designed to be braced in the excavation pit (3). be, and at least two opposite sections (5, 6) of the mount (1) are present, which are connected to one another by means of at least one fluid cylinder (7, 8) or at least one linear motor, and the at least one fluid cylinder (7, 8) or at least one linear motor, the at least two Sections (5, 6) are moved relative to one another so that the carriage (1) is braced in the excavation pit (3).

Images