Track processing machine, in particular impact wrench, and method for processing a track therewith

Abstract

A track machining machine (1), in particular an impact wrench, for machining tracks, comprising at least one handle (14, 15a) for manually guiding the track machining machine (1), a first structural unit (2) having a machining head (6) which can be driven to rotate about a rotation axis (7) for machining the track, a second structural unit (3), and a connecting unit (4) for mechanically connecting the first structural unit (2) to the second structural unit (3) and for reducing the longitudinal dimension of the track machining machine (1) along the rotation axis (7).

Description

[0001] This application claims priority to PCT application (Serial No. PCT / EP 2020 / 071 928) filed on August 4, 2020, the contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present invention relates to a track machining machine, in particular an impact wrench, for track machining. Furthermore, the present invention relates to a method for track machining by such a track machining machine. BACKGROUND

[0003] From WO 2019 / 228 609 Al an impact wrench for tightening and loosening track bolt connections is known. Such an impact wrench is often difficult to operate in track areas with limited available machining space, such as in a turnout or on a bridge. SUMMARY

[0004] It is therefore an object of the present invention to create an improved track machining machine which is particularly simple and flexible to use.

[0005] This object is achieved by a track machining machine for track machining, comprising at least one handle for manually guiding the track machining machine, a first structural unit having a machining head which can be driven to rotate about a rotation axis, a second structural unit, and a connecting unit for mechanically connecting the first structural unit to the second structural unit and for reducing the longitudinal dimension of the track machining machine along the rotation axis. Since the track machining machine has a connecting unit for mechanically connecting the first structural unit to the second structural unit and for reducing the longitudinal dimension of the track machining machine along the rotation axis of the machining head, the longitudinal dimension can be adapted to the available machining space. For example, when the rotation axis is oriented vertically, a larger longitudinal dimension facilitates the ease of operation. When the track machining requires the rotation axis to be oriented horizontally, a smaller longitudinal dimension can be required. By means of the connecting unit, the installation space occupied by the track machining machine can be flexibly adapted to the available machining space. This means that the track machining machine can also be used in restricted areas of the track, such as in a turnout or on a bridge. The range of application of the track machining machine is thus increased, and the track machining machine is particularly user-friendly and economical to operate.

[0006] The longitudinal dimension of the track machining machine is to be understood as the measurement of the track machining machine along the rotation axis of the machining head. The longitudinal dimension is determined on the machining side starting from the machining head. In determining the longitudinal dimension of the track machining machine, the machining tool which can be reversibly connected to the machining head is not taken into account. The advantages associated with the track machining machine are independent of the nature of the machining tool connected thereto.

[0007] The track processing machine has at least one handle for manually guiding and / or manually carrying the track processing machine. The track processing machine can be configured to be guided, in particular carried, at least partially, in particular completely, by an operator during track processing. The track processing machine can also have a guiding device for at least partial guiding relative to the track to be processed, in particular on at least one rail of the track. Preferably, the track processing machine comprises at least one, in particular at least two, in particular at least three handles for manually guiding the track processing machine. The at least one handle can be attached to the track processing machine, in particular to the first structural unit and / or to the second structural unit, in a rigid and / or removable and / or foldable and / or displaceable manner.

[0008] According to one aspect of the application, the at least one handle is a component of the second structural unit, i.e. in particular opposite the processing side relative to the connecting unit. Increasing the distance between the handle and the processing head facilitates user friendliness. Preferably, the at least one handle is a part of the first structural unit. Thus, the track processing machine can be handled in a particularly user-friendly manner, in particular at different processing positions.

[0009] The processing head can be configured as a processing tool and / or as a tool connector for receiving a processing tool. In order to connect the processing head to the processing tool in a reversibly releasable manner, the processing head can have, for example, a socket wrench connector and / or a grinding wheel connector and / or a drill chuck. Preferably, the processing head is configured as a shaft-connected connecting element, in particular as a notched shaft connection and / or a tongue-and-groove connection and / or a polygonal connection, in particular a square connection or a hexagonal connection.

[0010] The track processing machine can be a grinding machine, a cutting machine, in particular a grinding wheel cutting machine, and / or a saw, a drilling machine and / or a milling machine. Preferably, the track processing machine is a screwing machine, in particular a percussion screwing machine, for loosening and tightening threaded connections. The processing tool can be a grinding tool, a cutting tool, a drilling tool, in particular a tapping tool, a screwing tool and / or a milling tool. Thus, the track processing machine can be used in a particularly flexible manner.

[0011] Preferably, the connecting unit is also configured to reduce the lateral dimension of the track processing machine perpendicular to the rotation axis. For example, the connecting unit can be configured in such a way that the longitudinal dimension of the track processing machine can be reduced while the lateral dimension is increased, and / or vice versa.

[0012] The connecting unit can have a locking device for releasably locking the displacement movement or displacement position and / or the machining position of the first structural unit relative to the second structural unit. The locking device can be configured to reversibly frictionally lock and / or rigidly lock the first structural unit with the second structural unit. For example, the locking device can comprise a latching connection and / or a spring bolt. Advantageously, this ensures that the track machining machine can be operated in a very safe manner.

[0013] Preferably, the connecting unit has two connecting elements which can be displaced relative to one another. Preferably, the first structural unit is attached to the first connecting element and the second structural unit is attached to the second connecting element. The connecting unit can be configured as a linear guide. The connecting elements can be two parts of the linear guide which can be linearly displaced relative to one another. Such a track machining machine can be manufactured very economically and is robust in operation.

[0014] Preferably, the track machining machine comprises at least one motor, in particular a fluid motor, in particular an internal combustion engine and / or a hydraulic motor and / or a pneumatic motor, and / or an electric motor, for rotatably driving the machining head. The at least one motor can be a component of the second structural unit. Preferably, the machining head is rotatably driven relative to the at least one handle by the motor.

[0015] According to a further aspect of the application, the connecting unit is configured to allow a displacement of the first structural unit relative to the second structural unit of at least 10%, in particular at least 25%, in particular at least 50%, of the longitudinal dimension. Preferably, the connecting unit is configured to allow a displacement of the first structural unit relative to the second structural unit, in particular along the axis of rotation, of at least 80 mm, in particular at least 100 mm, in particular at least 250 mm and / or at most 500 mm. Preferably, the connecting unit is configured to allow a displacement of the first structural unit relative to the second structural unit about the pivot axis of at least 25°, in particular at least 45°, in particular at least 90°, in particular at least 120° and / or at most 270°.

[0016] A track machining machine which is configured such that a connection unit connects a first structural unit with a second structural unit such that the first structural unit and the second structural unit can be displaced relative to each other between a first machining position and a second machining position, is very flexible in use. Preferably, the connection unit is configured such that the first structural unit and the second structural unit can be displaced relative to each other between at least two, in particular at least three, in particular at least four machining positions. The machining positions are characterized in that in these positions the track machining machine can be used for track machining. Preferably, the track machining machine, in particular by means of a locking device, can be fixed in the first machining position and the second machining position, in particular in each machining position. The track machining machine is thus particularly reliable and safe in operation.

[0017] A track machining machine which is configured such that it has a first longitudinal dimension along a rotation axis in a first machining position and a second longitudinal dimension along the rotation axis in a second machining position, wherein the second longitudinal dimension is at least 25% smaller than the first longitudinal dimension, is particularly flexible in use. Preferably, the second longitudinal dimension is at least 25%, in particular at least 30%, in particular at least 40%, in particular at least 50%, in particular at least 60% and / or at most 90% smaller than the first longitudinal dimension. This makes the track machining machine usable even in track regions where the space is very limited.

[0018] A track machining machine which is configured such that the connection unit has a connection joint for pivoting the first structural unit relative to the second structural unit, can be produced particularly economically, is robust and reliable in operation and can be used flexibly. The connection unit can comprise one or more connection joints for pivoting the first structural unit relative to the second structural unit. In particular, the connection joint serves to change the orientation of the first structural unit and the second structural unit relative to each other. Preferably, the connection unit is configured such that the structural units are pivoted relative to each other between a first machining position and a second machining position. The connection joint can be configured as a pivot joint without a pivot stop or as a swivel joint with a pivot stop. Preferably, the joint axis or swivel axis is obliquely oriented, in particular perpendicularly oriented, relative to the rotation axis. Advantageously, this makes it possible for the second structural unit to maintain its orientation even if the rotation axis is switched between a vertical and a horizontal orientation for track machining. Preferably, the first structural unit is pivoted relative to the second structural unit by at least 70°, in particular by at least 80° and in particular by at least 90° between the first machining position and the second machining position. Preferably, the second longitudinal dimension in the second machining position is at most equal to the longitudinal dimension of the first structural unit. The track machining machine is thus particularly easy and convenient in operation.

[0019] A track processing machine which is configured such that the connection unit is configured for toolless displacement of the first structural unit relative to the second structural unit, the track processing machine being particularly economical and user-friendly in operation. Preferably, the track processing machine is manually displaceable and / or displaceable by motor drive by means of a displacement drive. Preferably, the connection unit is configured for toolless displacement between the first processing position and the second processing position. The locking device is displaceable by hand or motor drive between the locked position and the released position by means of a locking drive.

[0020] A track processing machine which comprises an impact wrench for driving a processing head in rotation about an axis of rotation, the track processing machine being particularly flexible in use. Preferably, the impact wrench is a component of the first structural unit. Thus, the drive torque can be transmitted from the impact wrench to the processing head with very low losses. Preferably, the impact wrench is configured for tightening and loosening rail screws.

[0021] A track processing machine which comprises a drive torque of at least 150 Nm about an axis of rotation on the processing head, the track processing machine being particularly flexible for track processing. Preferably, the track processing machine is configured for providing a drive torque about an axis of rotation on the processing head, wherein the drive torque is at least 150 Nm, in particular at least 250 Nm, in particular at least 500 Nm, in particular at least 1000 Nm, and / or at most 2500 Nm, in particular at most 1500 Nm. Preferably, the drive torque is transmitted from an impact wrench to the processing head. Thus, the track processing machine makes it possible to actuate, in particular firmly fasten, a threaded connection on a track.

[0022] A track processing machine which is configured such that the first structural unit has a motor for rotatably driving the processing head, the track processing machine being particularly economical to manufacture, but also being efficient and robust in operation. Preferably, the motor is configured for rotationally driving an impact wrench. Thus, the first structural unit can comprise the entire drive mechanism for rotationally driving the processing head. Relative movements of components of the drive mechanism relative to one another are thus avoided, wherein the drive mechanism serves to displace the track processing machine between the first processing position and the second processing position. Thus, the processing head can be rotationally driven efficiently and with low wear.

[0023] A track machining machine comprising an energy storage device for providing drive power to be transmitted to a machining head, which track machining machine is particularly flexible in use. Preferably, the energy storage device provides power for driving the motor. Preferably, the energy storage device has a capacity of at least 350 Wh, in particular at least 500 Wh, in particular at least 700 Wh, in particular at least 1 kWh, in particular at least 5 kWh and / or at most 50 kWh. The energy storage device can comprise an electrical energy storage device, a chemical energy storage device and / or a fluid storage device, in particular a fuel tank. Preferably, the energy storage device is a component of the second structural unit.

[0024] A track machining machine which is configured such that the energy storage device comprises an accumulator, which track machining machine is particularly safe and flexible to handle. Preferably, the accumulator is configured as a lithium polymer accumulator. The track machining machine can have an accumulator container for reversibly detachably attaching the accumulator to the track machining machine. Preferably, the supply voltage of the accumulator is at least 18 V, in particular at least 36 V, in particular at most 130 V.

[0025] The energy storage device, in particular the accumulator, can have a handle for transporting the accumulator and / or for manually guiding the track machining machine.

[0026] A track machining machine which is configured such that the second structural unit comprises an energy storage device, in particular when the track machining machine is configured as a percussion drill, which track machining machine is particularly convenient to operate. Since the energy storage device is a component of the second structural unit, the energy storage device can act as an inertial damper. The relatively large mass of the energy storage device suppresses oscillatory, i.e. vibrational, movements transmitted from the percussion drill to the second structural unit, in particular to the at least one handle. In addition, the energy storage device also occupies a non-negligible structural volume. Since the energy storage device is a component of the second structural unit, by switching the track machining machine between the first and second machining positions, the longitudinal dimension of the track machining machine can be significantly reduced.

[0027] Preferably, the motor is connected to the energy storage device by a flexible cable, in particular an electrical line. This reliably ensures the power transmission between the energy storage device and the motor via the connection unit.

[0028] A track machining machine comprising a control unit for controlling the drive power transmitted to the machining head, which is particularly flexible and easy to handle. The control unit can be configured to control, in particular continuously, the drive power transmitted to the machining head, in particular by means of a motor. The control unit can comprise an electronic circuit, in particular a programmable control electronics, for controlling the drive power. Preferably, the control unit comprises a power component for reversibly switching the motor with drive power, in particular electrical power, provided by an energy storage device. Preferably, the control unit is a component of the second structural unit. As a result, vibrations transmitted to the control unit are reduced.

[0029] A track machining machine which is configured such that the control unit is configured for detecting the arrangement of the track machining machine in at least one machining position, which is particularly operationally reliable and robust. Preferably, the control unit is configured for reversibly interrupting the operation of the track machining machine when the track machining machine is not in one of the machining positions and / or when it is not locked in one of the machining positions. To this end, the control unit can be in signal connection with a sensor which detects the arrangement of the track machining machine in at least one machining position and / or the locking state in at least one machining position. The control unit can be configured to reversibly interrupt the supply of drive power to the machining head, in particular the supply of electrical power to the motor.

[0030] A track machining machine comprising a vibration decoupler acting between the machining head and at least one handle, which has a high ease of operation and is particularly operationally robust. Preferably, the vibration decoupler is arranged in particular along the vibration path between the machining head and the connection unit, in particular between the motor and the connection unit. As a result, the connection unit is subjected to less vibration. Preferably, the vibration decoupler has at least one damping element, in particular made of rubber-elastic material. Preferably, the motor is attached to the connection unit by means of the damping element, in particular using a bolt. The vibration decoupler is a component of the first structural unit. Alternatively, the vibration decoupler can be a component of the second structural unit.

[0031] It is another object of the present application to provide a method for track machining by means of a track machining machine in a simple and flexible manner.

[0032] The method of track processing by means of the track processing machine according to the application achieves this object. The advantages of the method correspond to the advantages of the track processing machine described above. Preferably, the method is further improved with at least one of the features described above in connection with the track processing machine. Since the track processing machine is used for processing tracks, the track processing can be carried out both in areas having sufficient processing space and in limited areas, such as in switches or on bridges, where there is little space available for track processing. Thus, it is possible to dispense with the acquisition, maintenance and operation of different track processing machines. The track processing machine ensures that the tracks are processed in a particularly economical manner.

[0033] Preferably, the track processing machine is designed as an impact wrench for tightening and loosening threaded connections, in particular threaded rail connections for fastening the rails to the railway sleepers. Track processing machines of this type are usually very space-consuming and thus particularly strongly benefit from a reduction in the longitudinal dimension. BRIEF DESCRIPTION OF DRAWINGS

[0034] Further features, details and advantages of the application will become apparent from the following description of exemplary embodiments based on the drawings.

[0035] Figure 1 A perspective view of a track processing machine, in particular an impact wrench, during track processing is shown, the track processing machine comprising a first structural unit, a second structural unit and a connecting unit for mechanically connecting the first structural unit and the second structural unit, wherein the track processing machine is arranged in a first processing position;

[0036] Figure 2 An enlarged view of the track processing machine in Figure 1 is shown;

[0037] Figure 3 A side view of the track processing machine in Figure 1 is shown, wherein a socket wrench is attached to the processing head of the first structural unit and wherein the track processing machine is used for loosening a threaded connection having a vertically oriented screw axis;

[0038] Figure 4 A front view of the track processing machine in Figure 1 is shown without a socket wrench;

[0039] Figure 5 A perspective view of the track processing machine in Figure 1 is shown, wherein the track processing machine is arranged in a second processing position, in which the second structural unit is pivoted about the first structural unit by means of the connecting unit;

[0040] Figure 6 A perspective view of the track processing machine in Figure 5 is shown; and

[0041] Figure 7 A side view of a track machining machine is shown, in particular a track machining machine when loosening a screw connection having a helical axis with a horizontal orientation. Figure 5 DETAILED DESCRIPTION

[0042] Figures 1 to 7 A track machining machine 1, in particular an impact wrench, for track machining is shown. The track machining machine 1 comprises a first structural unit 2 and a second structural unit 3. The first structural unit 2 and the second structural unit 3 are mechanically connected to each other by means of a connecting unit 4. The connecting unit 4 has a connecting joint 5 for pivoting the second structural unit 3 relative to the first structural unit 2.

[0043] The first structural unit 2 has a machining head 6, which can be driven to rotate about a rotation axis 7. For driving the machining tool 8 in rotation, the machining head 6 has a tool connector 9 in the form of an external square connection. The machining tool 8, which is configured as a socket wrench, is detachably attached to the tool connector 9 in a reversible manner.

[0044] The machining head 6 is a component of an impact wrench 10 of the track machining machine 1. The impact wrench 10 is rotatably connected to an electric motor 11 of the track machining machine 1. The first structural unit 2 comprises the electric motor 11 and the impact wrench 10 with the machining head 6.

[0045] The track machining machine 1 has an energy accumulator container 12. An energy accumulator 13 is detachably attached to the energy accumulator container 12 in a reversible manner. The energy accumulator 13 is configured as a lithium polymer energy accumulator. In particular, the energy accumulator 13 is configured for providing electric power to the electric motor 11.

[0046] The track machining machine 1 is configured to be portable and can be manually guided for track machining. To this end, the track machining machine 1 has a first handle 14, a second handle 15a and a third handle 15b. The first handle 14 is fixedly connected to the energy accumulator container 12. The second handle 15a is attached to the energy accumulator 13. The third handle 15b is hingedly attached to the connecting unit 4. The third handle 15b is a component of the first structural unit 2.

[0047] The energy accumulator 13 is attached to the energy accumulator container 12 by means of a latching connection 16. The latching connection 16 comprises a pivotably mounted latching lever 17 and a latching engagement 18. The latching lever 17 is connected to the energy accumulator container 12 and is biased into a latched position by means of a spring element, not shown, in which the latching connection 16 is closed. In an open position of the latching lever 17, the energy accumulator 13 can be removed from the energy accumulator container 12.

[0048] ​The control unit 19 of the track processing machine 1 is connected to the energy accumulator 13 in a signal-transmitting, in particular power-transmitting, manner via the energy accumulator container 12. The control unit 19 is configured for controlling the electrical power provided by the energy accumulator 13 and supplied to the electric motor 11. To this end, the control unit 19 comprises electronic control elements, in particular a programmable controller, which are not shown, and power components, which are not shown and are in signal connection with the electronic control elements, for switching the electrical power supplied to the electric motor 11.

[0049] The operating unit 20 of the track processing machine 1 is configured for starting the track processing machine 1 on the basis of a corresponding input from an operator. The control unit 19 and the operating unit 20 are configured for controlling, in particular regulating, the power transmitted to the electric motor 11 in accordance with an input by the operator. To this end, the operating unit 20 is in signal connection with the control unit 19.

[0050] The second structural unit 3 has the first handle 14, the energy accumulator container 12, the energy accumulator 13 with the second handle 15a, the control unit 19 and the operating unit 20.

[0051] The connecting unit 4 connects the first structural unit 2 to the second structural unit 3 in such a way that the first structural unit 2 and the second structural unit 3 can be displaced, in particular pivoted, relative to one another between a first processing position and a second processing position. In both processing positions, the track processing machine 1 can be used for processing the track 21. The connecting joint 5 is configured in such a way that the first structural unit 2 and the second structural unit 3 can be fixed in two predetermined connection angles a1, a2 relative to one another. The connection angles a1, a2 are dimensioned in such a way that, about a pivot axis 22 of the connecting joint 5, between the rotational axis 7 and a main extension direction 23 of the second structural unit 3, which is oriented radially relative to the pivot axis 22. The first connection angle a1 predominates in the first processing position and is 180°. The second connection angle a2, which predominates in the second processing position, is 90°.

[0052] When switching between the first processing position and the second processing position, the first structural unit 2 can be rotated relative to the second structural unit 3 by a rotation angle Da of 90°.

[0053] The connecting joint 5 has a first joint part 24 and a second joint part 25, the respective first joint part 24 being pivotable relative to the respective second joint part 25. The first joint part 24 and the second joint part 25 are components of the connecting unit 4. By means of the first joint part 24, the connecting unit 4 is connected on both sides to the first structural unit 2. By means of the second joint part 25, the connecting unit 4 is connected on both sides to the energy accumulator container 12.

[0054] The connection unit 4 has a pivot locking device (not shown) for reversibly releasably fixing the track processing machine 1 in the first processing position or the second processing position, in particular in each of the predetermined connection angles a1, a2. For this purpose, the pivot locking device comprises a spring bolt which in particular acts between one of the first joint parts 24 and the second joint part 25 associated therewith. The pivot locking device can be manually displaced by the operator between a locking position and a release position in order to displace the track processing machine 1 between the first processing position and the second processing position.

[0055] The control unit 19 is configured to detect whether the connection unit 4, in particular the pivot locking device, is arranged in the locking position. Only when the connection unit 4 is arranged in the locking position, the electric motor 11 can be activated by means of the control unit 19. For this purpose, the control unit 19 can be in signal connection with a switch connected to the pivot locking device.

[0056] A vibration decoupler 26 acts between the processing head 6 and the handle 14, 15a, 15b. Via the vibration decoupler 26, the first structural unit 2 is connected to the connection unit 4, in particular to the first joint part 24. The electric motor 11 is attached to the first joint part 24 by means of the vibration decoupler 26. The vibration decoupler 26 comprises four damping elements 27 for damping the vibration movements between the first structural unit 2 and the connection unit 4. The damping elements 27 are configured as rubber-elastic bodies, in particular having a rotationally symmetrical, in particular hourglass-shaped form. Each of the bolts 28 fixes the damping elements 27 between the first structural unit 2 and the connection unit 4 and limits the vibration movements thereof relative to one another. The vibration decoupler 26 reduces the vibrations generated at the impact wrench 10, which are transmitted to the connection unit 4 and via the handle 14, 15a, 15b to the operator.

[0057] The track processing machine 1 has a first longitudinal dimension LI along the rotation axis 7 in the first processing position and a second longitudinal dimension L2 along the rotation axis 7 in the second processing position. The dimensions of the longitudinal dimensions LI, L2 are determined from the processing head 6, in particular the tool connector 9, along the rotation axis 7. The processing tool 8 is not considered when determining the dimensions of the longitudinal dimensions LI, L2. For example, the second longitudinal dimension L2 is about 37% smaller than the first longitudinal dimension LI.

[0058] The track processing machine 1, in particular the electric motor 11 and the impact wrench 10, is configured to provide a drive torque M of 500 Nm around the rotation axis 7 at the processing head 6, in particular at the processing tool 8.

[0059] The operating modes of the track processing machine 1 are as follows:

[0060] The track machining machine 1 is initially in a deactivated state. The energy accumulator 13 is charged and attached to the energy accumulator container 12. The machining tool 8 is attached to the tool connector 9. The machining machine 1 is in a first machining position, in which the rotational axis 7 is oriented essentially parallel to the main extension direction 23 of the second structural unit 3.

[0061] The machining machine 1 can be used to tighten and / or loosen various track screw connections 29. Track screw connections 29 with a vertical helical axis 30 are used, for example, to fasten rails 31 to track sleepers 32. Track screw connections 29 with a horizontal helical axis 30 are used, for example, on emergency lug connectors 33.

[0062] In Figures 1 to 4 , it is shown that the track machining machine 1 is in the first machining position. In order to actuate track screw connections 29 with a vertical helical axis 30, the machining machine 1 is arranged in the first machining position. Due to the large longitudinal dimension LI of the track machining machine 1 in the vertical direction, the track machining machine 1 can be easily grasped and guided by the operator, and due to the small transverse dimension of the track machining machine 1 in the horizontal direction, the track machining machine 1 can be used in a very space-saving manner.

[0063] By means of the operating unit 20, operator commands are transmitted to the control unit 19 to activate the track machining machine 1. Depending on further commands of the operator detected via the operating unit 20, the control unit 19 adjusts the electrical power provided at the electric motor 11. By means of the control unit 19, the electrical power from the energy accumulator 13 to the electric motor is switched via the power component. Depending on the rotational direction around the rotational axis 7 specified by the operator, the track screw connections 29 are tightened or loosened.

[0064] In order to actuate track screw connections 29 of the emergency lug connectors 33 with the respective horizontal helical axis 30, the track machining machine 1 is transferred from the first machining position to the second machining position. For this purpose, the pivot locking device is manually released by the operator, in particular the spring bolt is displaced from the locking position to the release position. The second structural unit 3 can be manually rotated by a rotational angle Δα of 90° with respect to the first structural unit 2. The position of the pivot locking device in the release position is detected by the control unit 19. The control unit 19 prevents the operation of the track machining machine 1, in particular the power transmission between the energy accumulator 13 and the electric motor 11.

[0065] In the second machining position, the pivot locking device is returned to the locking position, in particular the spring bolt is engaged in the respective hole to fix the connection unit 4 in the second machining position. The control unit 19 detects the arrangement of the pivot locking device in the locking position and allows the track machining machine 1 to be activated.

[0066] In Figures 5 to 7In the second operating position, the rail machining machine 1 is shown. The rail machining machine 1 or the machining tool 8 can be moved by the operator by means of the handles 14, 15a, 15b into one of the rail screw connections 29 having a horizontal screw axis 30 and engaged with the rail screw connection 29. Due to the reduced longitudinal dimension L2, the rail machining machine 1 has very small requirements in terms of installation space in the horizontal direction. Due to the upward pivoting of the second structural unit 3 about the pivot axis 22 by means of the handles 14, 15a, the handles 14, 15a retain their orientation relative to the vertical axis and the rail machining machine 1 is very easy to handle.

[0067] The operating mode of the rail machining machine 1 in the second operating position corresponds to the operating mode of the rail machining machine 1 in the first operating position.

[0068] The arrangement of the vibration decoupler 26 between the machining head 6 and the handles 14, 15a, 15b ensures that the intensity of the vibrations acting on the operator is reduced. Due to the arrangement of the vibration decoupler 26 between the first structural unit 2 and the connecting unit 4, the vibration stresses on the connecting unit 4 are also reduced. Furthermore, the stresses on sensitive electronic components such as the accumulator 13 and the control unit 19, which are part of the second structural unit 3, are reduced.

[0069] Due to the arrangement of the entire drive mechanism, in particular the electric motor 11 and the impact wrench 10, on the vibration side of the vibration decoupler 26, a structurally complex and wear-prone vibration decoupling device on the drive shaft can be dispensed with. The arrangement of the mass-intensive accumulator 13 on the operator side of the vibration decoupler 26 provides additional vibration damping due to the mass inertia.

[0070] Due to the provision of the impact wrench 10 for driving the machining head 6 in rotation, the housing torque to be borne by the operator is significantly reduced. The rail machining machine 1 is very operator-friendly in use.

[0071] The rail machining machine 1 can be used for rail machining in various applications in a very space-saving manner. The rail machining machine 1 can thus be used in a very flexible manner and the range of applications is increased.

Claims

1. A track machining machine (1) for track machining, the track machining machine comprising: - At least one handle (14, 15a, 15b) for manually guiding the track processing machine (1). - First structural unit (2), which has a processing head (6) that can be driven to rotate about a rotation axis (7); - Second structural unit (3); and - A connecting unit (4) for mechanically connecting the first structural unit (2) to the second structural unit (3) and for reducing the longitudinal dimension (L1, L2) of the track processing machine (1) along the rotation axis (7). in, The connecting unit (4) has a connecting joint (5) for pivoting the first structural unit (2) relative to the second structural unit (3).

2. The track processing machine (1) according to claim 1, wherein the track processing machine is an impact wrench handpiece.

3. The track processing machine (1) according to claim 1, characterized in that, The connecting unit (4) connects the first structural unit (2) and the second structural unit (3) so that the first structural unit (2) and the second structural unit (3) can be displaced relative to each other between the first processing position and the second processing position.

4. The track processing machine (1) according to claim 1, characterized in that, The track processing machine has a first longitudinal dimension (L1) along the rotation axis (7) in a first processing position and a second longitudinal dimension (L2) along the rotation axis (7) in a second processing position, wherein the second longitudinal dimension (L2) is at least 25% smaller than the first longitudinal dimension (L1).

5. The track processing machine (1) according to claim 1, characterized in that, The connecting unit (4) is configured for tool-free displacement of the first structural unit (2) relative to the second structural unit (3).

6. The track processing machine (1) according to claim 1, characterized in that, An impact wrench (10) is used to drive the processing head (6) to rotate about the axis of rotation (7).

7. The track processing machine (1) according to claim 1, characterized in that, The driving torque (M) on the machining head (6) about the rotation axis (7) is at least 150 Nm.

8. The track processing machine (1) according to claim 1, characterized in that, The first structural unit (2) has a motor (11) capable of rotatably driving the processing head (6).

9. The track processing machine (1) according to claim 1, characterized in that, The energy storage device (13) is used to provide drive power transmitted to the processing head (6).

10. The track processing machine (1) according to claim 9, characterized in that, The energy storage device (13) includes an energy accumulator.

11. The track processing machine (1) according to claim 9, characterized in that, The second structural unit (3) includes the energy storage device (13).

12. The track processing machine (1) according to claim 1, characterized in that, The control unit (19) controls the drive power transmitted to the processing head (6).

13. The track processing machine (1) according to claim 12, characterized in that, The control unit (19) is configured to detect the arrangement of the track processing machine (1) in at least one processing position.

14. The track processing machine (1) according to claim 1, characterized in that, The vibration decoupler (26) acts between the processing head (6) and the at least one handle (14, 15a, 15b).

15. A method for machining a track using a track machining machine (1) according to any one of claims 1 to 14.

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