Line trolley

Abstract

The invention relates to a cable trolley (1) with a carriage (2), wherein the carriage (2) has an electric drive (3), wherein the electric drive (3) is connected to a battery (4), wherein the electric drive (3) interacts with a cable roller (5), wherein the drive (3) is controllable via a control unit (6), wherein a brake (7) is provided, wherein a drive-over aid (8) is provided, wherein the drive-over aid (8) has a folding boom, wherein the folding boom consists of a horizontal support (10) pivotably attached to the carriage (2), wherein the horizontal support (10) has a vertical support (9) pivotably attached to the horizontal support (10) on the other side of the carriage (2), wherein the vertical support (9) has a cable roller carrier (11) at the other end of the horizontal support (10).wherein the cable roller carrier (11) is adjustable and lockable between 180° and 360° relative to the vertical support (9) and has at least two cable rollers (12) on a pivot axis (13).

Description

Technical field

[0001] The invention relates to a line trolley according to the preamble of claim 1. State of the art

[0002] Such cable trolleys are already known and in use in a variety of forms and configurations. For example, DE 10 2021 102 375 B3 describes a cable trolley for high-voltage lines equipped with a frame. This frame contains a drive unit that interacts with a cable drive roller. The drive roller is part of a cable drive unit, which also includes a cable brake. The cable brake is based on a scissor mechanism with two holders that are reversibly movable relative to each other. Each holder carries a brake shoe. The drive unit can, via an either / or switch, either activate the cable brake or drive the cable drive roller.

[0003] EP 3 319 190 A1 further describes, in one embodiment, a chassis designed as a lattice frame. It features two inclined lifting arms specifically designed for autonomously traversing masts. The controls are positioned on a platform below the cables. The design also includes a control unit and a power supply unit. The assembly unit is designed as a multi-axis robot and is mounted on a platform attached to the outside of the chassis, located above the lower cables.

[0004] In this context, reference is also made to DE 20 2017 107 778 U1, which discloses a cable trolley with a base tray arranged in the frame, which can be stabilized by upwardly curved edge sections. Crucially, the base tray can be pulled out of the frame after a locking mechanism is released, thus facilitating cleaning, maintenance, or replacement. The locking mechanism consists of manually operated, spring-loaded bolts located on opposite side walls of the frame. Object of the invention

[0005] The object of the present invention is to provide a lightweight cable trolley which offers overall advantages for older pipelines due to its weight savings. Prior art hydraulic lifting arms are often too heavy for such applications, while the trolley allows for quick and easy overcoming of obstacles on the pipeline. Solution to the task

[0006] The features according to claim 1 lead to the solution of the problem. Advantageous embodiments are described in the dependent claims.

[0007] The line carriage is arranged in a driving position on a line, whereby driving position means that it can move back and forth on a line, such as a high-voltage line, in a first or a second direction of travel.

[0008] In its operating position, the cableway is positioned between two high-voltage pylons, with the first direction of travel pointing towards the first pylon and the second direction towards the second pylon. This configuration allows the cableway to operate flexibly between defined points on the line and to quickly adapt to the specific task at hand.

[0009] The cable trolley comprises a carriage equipped with an electric drive. The electric drive is connected to a battery that supplies the energy for operation. The advantage of this design lies in its independence from external power sources, which enables the cable trolley to be used in various locations.

[0010] Furthermore, the electric drive in combination with the battery ensures environmentally friendly and quiet operation, which is particularly advantageous in sensitive environments.

[0011] The cable rollers are driven by an electric motor, allowing the cable trolley to move in the desired direction. The cable rollers are designed to ensure secure and stable contact with the cable, guaranteeing precise control and reliable progress.

[0012] The system is controlled via a control unit, allowing the operator to precisely control the cable trolley. Both the direction and speed of travel can be regulated via the control unit, ensuring ease of use and flexibility.

[0013] A brake is also an integral part of the cable trolley and provides an important safety function. It allows the trolley to be stopped and secured at a specific position on the cable, which is particularly necessary during maintenance or inspection work. The advantage of the brake lies in the increased safety, as it prevents the trolley from unintentionally slipping.

[0014] Another key feature of the line carriage is the override aid, which serves to safely overcome obstacles on the line, such as insulators. This override aid consists of a folding boom comprising several movable components that allow for flexible adaptation to different obstacles.

[0015] The folding boom includes a horizontal support that is pivotally mounted to the car. This horizontal support allows the traverse aid to be moved laterally away from the car, creating space for the traverse operation. The advantage of the pivoting horizontal support lies in its versatility, as it can be easily positioned to overcome obstacles of varying sizes and shapes.

[0016] A vertical support is pivotally mounted at the other end of the horizontal beam. This vertical support allows the crossing aid to be adjusted to the pipes and cables. The advantage of the pivotable connection between the horizontal and vertical supports lies in the system's flexibility, as it can adapt to the specific requirements of each crossing situation. The vertical support is also length-adjustable, allowing for further adjustment of the crossing aid to different pipe or obstacle heights.

[0017] The vertical support is equipped with a cable roller carrier that is adjustable relative to the vertical support. This adjustability allows the cable roller carrier to be positioned optimally to ensure secure contact with the cables. The cable roller carrier is also equipped with at least two cable rollers mounted on a common pivot axis. These rollers ensure a stable and secure hold on the cables and facilitate traversing obstacles.

[0018] The overpass is moved into the desired position by an adjustment drive. The adjustment drive consists of a spindle rod, a car support, and a vertical strut connection. The spindle rod allows for precise adjustment of the horizontal support's position relative to the car. The advantage of this design lies in the high accuracy with which the overpass can be positioned, thus increasing the safety and effectiveness of the overpass system.

[0019] The crossing aid is designed to be used in both the first and second directions of travel. This is achieved by installing an additional crossing aid in the opposite direction, which significantly expands the operational possibilities of the cable trolley.

[0020] Finally, a stop on the horizontal beam ensures that the vertical beam is fixed in the driving-over position. This guarantees a stable and secure position of the drive-over aid during operation, which increases both operational safety and the longevity of the components. Character description

[0021] Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings; these show in: Fig. 1 a line trolley 1 in driving position on a line; Fig. 2 of the line trolley 1 from the Fig. 1 in override position without the line; Fig. 3 of the line trolley 1 from the Fig. 1 in override position on the line. Example of implementation

[0022] In Fig. Figure 1 shows a line maintenance vehicle 1 in a travel position on a line. Travel position means that the line maintenance vehicle 1 can move back and forth on the line (not described in detail), for example, a high-voltage line, in a first direction 21 or a second direction 22. In the travel position, the line maintenance vehicle 1 is positioned between two high-voltage pylons for this back-and-forth movement. The first direction 21 points towards the first high-voltage pylon, and the second direction 22 points towards the second high-voltage pylon.

[0023] The cable trolley 1 comprises a car 2, the car 2 being equipped with an electric drive 3. The electric drive 3 is connected to a battery 4. The battery 4 is located in the Fig. Figure 2 shows that the battery 4 supplies, among other things, the energy for the electric drive 3, which in turn drives the cable rollers 5. The interaction of the battery 4 with the electric drive 3 and the cable rollers 5 means that the battery 4 supplies the drive 3 with energy. This, in turn, drives the cable rollers 5 in a rotating manner, enabling them to travel either in the first direction 21 or in the second direction 22.

[0024] The electric drive 3 can be controlled via a control unit 6. Using the control unit 6, a user can direct the cable trolley 1 in the desired direction and, if necessary, also control its speed.

[0025] Furthermore, a brake 7 is provided, which fulfills an additional safety function. The brake 7 ensures that the line carriage 1 comes to a standstill at a specific position on the line and cannot unintentionally slip in either of the directions 21, 22.

[0026] The line carriage 1 has a crossing aid 8. This crossing aid 8 serves to overcome obstacles on the line. These can be, for example, insulators 25, as used in the Fig. 1 and Fig. 3 are shown.

[0027] The overpass 8 comprises a folding boom consisting of a horizontal support 10, which is pivotably attached to the car 2. At the other end of the horizontal support 10 is a vertical support 9, which is pivotably attached to the horizontal support 10. The vertical support 9 has a cable roller carrier 11 at the opposite end of the horizontal support 10.

[0028] The cable roller carrier 11 is adjustable between 180° and 360° relative to the vertical support 9 and can be fixed in the desired position. Furthermore, the cable roller carrier 11 is equipped with at least two cable rollers 12, which are mounted on a common pivot axis 13.

[0029] The crossing aid 8 is designed as a folding boom. This means that when the cable trolley 1 has moved up to the insulators 25, the operator first unfolds the horizontal support 10 away from the cable trolley 1 and then unfolds the vertical support 9 towards the cables. Subsequently, the cable reel carrier 11 is first guided parallel between the two cables shown and then rotated by 90° to place the two cable reels 12 onto the cables shown, as shown in the Fig. 3 is shown.

[0030] In the Fig. 1 and Fig.Figure 3 also shows the crossing position, in which the crossing aid 8 is unfolded and lies on the cables to overcome an obstacle, in this case the insulators 25. The crossing aid 8 is unfolded so that the insulators 25 or another obstacle are positioned between the cable roller carrier 11 and the cable rollers 5. The horizontal support 10 is then pivoted away from the car 2 in the crossing position by an adjustment drive 14. The adjustment drive 14 is a mechanism that changes the position of the horizontal support 10 relative to the car 2, thereby moving the crossing aid 8 into the desired position. The desired position means that the cables are pulled downwards towards a surface by the vertical strut 9, and the horizontal strut 10 is pushed away from the car 2. When the horizontal strut 10 is pushed away from the car 2, it pulls the cables towards the surface by means of the vertical strut 9.This lifts the conductor rollers 5 pointing in the relevant direction of travel 22, 23 from the conductor. This, in turn, allows the conductor rollers 5 to be unfolded, the insulators 25 to be driven over, and subsequently the crossing aid 8 to be returned to its initial position, i.e., to the driving position.

[0031] The adjusting drive 14 consists of several components. It comprises a spindle rod 15, a car bracket 16, and a vertical strut connection 17. The spindle rod 15 is equipped with a screw head 18 at one end and a horizontal support connection 17 at the other. This horizontal support connection 17 is releasably connected to the horizontal support 10 by a locking pin 19. Furthermore, the spindle rod 15 is adjustable within a threaded housing 20, which is part of the car bracket 16. This design allows for precise adjustment of the position of the horizontal support 10. The spindle rod 15 is rotatably arranged within the threaded housing 20.

[0032] The spindle rod 15 is adjusted by a user, for example, using a cordless screwdriver, by means of the screw head 18. In doing so, the spindle rod 15 pushes the vertical strut connection 17 away from the car 2 or away from the car support 16, thereby engaging the horizontal support 10, which in turn engages the vertical strut 9 and pulls the cable roller carrier 11 with the cable rollers 12 towards the ground. The ground refers to the floor surface beneath the cable trolley in its travel or overhead position.

[0033] A cable trolley 1 according to one of the preceding claims is further characterized in that the crossing aid 8 is arranged in a first direction of travel 21, while a further crossing aid 24 is attached in a second direction of travel 22. This arrangement allows the cable trolley 1 to cross obstacles in different directions of travel and thus ensures greater flexibility in its use.

[0034] The vertical support 9 is length-adjustable. This allows for adjustment of the height of the vertical support 9, which is particularly advantageous in situations where the drive-over aid 8 needs to be adapted to different requirements.

[0035] In order for the horizontal beam 10 to carry the vertical beam 9 in the manner described above, the pivoting motion of the horizontal beam 10 relative to the vertical beam 9 must be limited. For this purpose, the horizontal beam 10 has a stop 23. This stop 23 serves to fix the vertical beam 9 in the passing position by pressing it against the stop 23.

[0036] This ensures a stable and secure position of the vertical support 9 during the drive-over aid. Reference symbol list 1 line trolley 2 elevator cars 3 electric drive 4 batteries 5 cable roller 6 Control unit 7 Brake 8 Drive-over aid 9 vertical beams 10 horizontal beams 11 cable reel carriers 12 cable reels 13. Axis of rotation 14 Adjustment drive 15 Spindle rod 16 Car bracket 17 Horizontal strut connection 18 screw heads 19 Safety pin 20 counter-threaded housings 21 First direction of travel 22 Second direction of travel 23 attacks 24 more drive-over aids 25 Insulator

Claims

[1] Cable trolley (1) with a car (2), wherein the car (2) has an electric drive (3), wherein the electric drive (3) is connected to a battery (4), wherein the electric drive (3) interacts with a cable roller (5), wherein the drive (3) can be controlled via a control unit (6), wherein a brake (7) is provided, characterized by, that a crossing aid (8) is provided, wherein the crossing aid (8) has a folding boom, the folding boom consisting of a horizontal support (10) pivotably attached to the car (2), the horizontal support (10) having a vertical support (9) pivotably attached to the horizontal support (10) on the other side of the car (2), the vertical support (9) having a cable roller support (11) at the other end of the horizontal support (10), the cable roller support (11) being adjustable and lockable between 180° and 360° relative to the vertical support (9) and having at least two cable rollers (12) on a pivot axis (13). [2] Line trolley (1) according to claim 1, characterized by , that the horizontal beam (10) is pivoted away from the car (2) in the overpass position by an adjustment drive (14). [3] Cable trolley (1) according to claim 2, characterized by, that the adjusting drive (14) consists of a spindle rod (15), a car holder (16) and a vertical strut connection (17), wherein the spindle rod (15) has a screw head (18) at one end and the horizontal support connection (17) at the other end, wherein the horizontal support connection (17) is releasably connected to the horizontal support (10) with a locking pin (19) and is adjustable in a counter-threaded housing (20) of the car holder (16). [4] Line trolley (1) according to any of the preceding claims, characterized by , that one crossing aid (8) is arranged in a first direction of travel (21) and another crossing aid (24) is arranged in a second direction of travel (22). [5] Line trolley (1) according to any of the preceding claims, characterized by , that the vertical support (9) is length-variable. [6] Line trolley (1) according to any of the preceding claims, characterized by, that the horizontal beam (10) has a stop (23) against which the vertical beam (9) is pressed in the passing position.

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