High-speed railway power supply contact line laying device

Abstract

The utility model relates to a high-speed railway power supply contact line laying device which comprises a movable base, a traction device and an erecting device. The movable base is provided with a supporting seat, walking wheels and a first driving part. The traction device comprises a mounting frame, a cable tray, a rotating shaft, a second driving part and a tension monitoring system; the erecting device is composed of an elevator and an outgoing line guiding device. According to the device, accurate regulation and control of tension in the stringing process are achieved through the control device, the stability and consistency of wire laying are ensured, meanwhile, the device has the multi-stage braking function and the visual monitoring capacity, the construction efficiency and safety are effectively improved, the device adapts to complex working condition requirements, and the quality and reliability of high-speed railway contact wire laying are remarkably optimized.

Description

Technical Field

[0001] This application relates to the field of railway equipment, and in particular to a device for laying power supply contact wires for high-speed railways. Background Technology

[0002] The overhead contact system is a crucial component of electrified railways, with conductors used to support and conduct electric current. Overhead contact system installation technology plays a vital role in modern railway construction, especially with the widespread adoption of high-speed and electrified railways, significantly improving the safety and stability of train operations. As railway networks continue to expand, the upgrading of existing lines has become a common need, and the re-installation of the overhead contact system is a key aspect of this process. While traditional overhead contact system installation methods are relatively mature, improving operational efficiency and accuracy remains a key focus for the industry, especially when facing complex terrain conditions and limited construction windows.

[0003] Currently, to address the challenges of overhead contact line installation, the industry generally adopts two main methods: one is to use large-scale constant tension overhead line equipment to complete the high-precision laying of new lines; the other is to rely on manual operation combined with simple tools for local modifications or maintenance. The former is usually equipped with frames, reels, tension devices, and various force measuring elements, adjusting the tension balance at the inlet and outlet ends through preset programs to achieve a stable laying process. The latter relies more on the experience and judgment of workers, combining the results of portable instrument testing to dynamically adjust the traction force to ensure that the final laying quality meets the standard requirements.

[0004] However, both of these traditional methods have certain shortcomings in practical applications. While highly mechanized constant-tension overhead line equipment can provide a high level of service, its large size and lack of flexibility often make it unsuitable for confined spaces or special road sections. Manual methods, on the other hand, suffer from low efficiency due to insufficient technical support and are susceptible to errors caused by external environmental interference, particularly struggling to overcome the additional difficulties posed by complex terrain. Therefore, a novel solution capable of performing well in various environments is urgently needed to improve this situation. Utility Model Content

[0005] To address the aforementioned problems, this application provides a high-speed railway power supply contact wire laying device.

[0006] The technical solution of the high-speed railway power supply contact wire laying device provided in this application is as follows:

[0007] A high-speed railway power supply contact wire laying device, comprising:

[0008] A movable base, the movable base including a support base and a traveling wheel disposed below the support base, and a first driving member for driving the traveling wheel to move, the traveling wheel moving on a rail;

[0009] The traction device includes a mounting frame installed above and fixedly disposed on the support base, and a cable reel located above the mounting frame. The cable reel is mounted on the mounting frame via a rotating shaft placed on the mounting frame. The rotating shaft is rotatably disposed with the mounting frame, and a second driving member is provided at one end of the rotating shaft to drive the rotating shaft to rotate and release the cable. The traction device also includes a tension monitoring system, which includes a tension sensor that monitors changes in the tension of the cable.

[0010] The erection device is installed above the mobile base and behind the traction device. It includes a lifting ladder and a cable guide device mounted on the lifting ladder, which guides the wires on the cable reel. The control device includes a controller mounted on the mobile base and electrically connected to the first drive component, the second drive component, and the tension sensor. The controller controls the braking of the first and second drive components based on the tension sensor data, adjusting the cable tension to maintain consistency.

[0011] By adopting the above technical solutions, the design of the mobile base enables the entire device to move stably on the rails, ensuring flexibility and adaptability during construction. The cable reel in the traction device, in conjunction with the tension monitoring system, can monitor and adjust the cable tension in real time, ensuring consistency and stability of tension during erection and effectively avoiding quality problems caused by tension fluctuations. The erection device, through the coordinated action of the lifting ladder and the cable guide device, precisely guides the cable route, improving erection efficiency and accuracy. The control device uses a controller to integrate and manage the actions of each component, intelligently adjusting the working status of the mobile base and traction device based on data feedback from the tension sensor, thereby optimizing the overall work process, improving work efficiency while reducing the uncertainty caused by human intervention.

[0012] Preferably, the control device further includes a multi-stage brake mounted on the traction device. The brake is hydraulically braked and electrically connected to the controller, and braking and tension are adjusted through the brake.

[0013] By adopting the above technical solutions, when more precise management of tension fluctuations is required, the hydraulically driven multi-stage brake can intervene under the command of the controller. With its powerful and flexible braking performance, it effectively assists the tension adjustment process, reduces the risk of tension loss of control due to sudden situations, and thus comprehensively improves the success rate and stability of overhead line operations.

[0014] Preferably, the control device further includes a camera and a control terminal. The camera is positioned above the mounting frame and on one side of the cable reel, and is electrically connected to the controller. The control terminal is wirelessly connected to the controller and synchronously controls the start and stop of the traction device, visually displays the tension of the cable-laying device, the travel speed of the moving base, and displays the status of the cable reel using a high-definition camera.

[0015] By adopting the above technical solutions, the camera can capture the status of the cable reel in real time and transmit the high-definition image to the control terminal, allowing operators to understand the working status of the cable reel at any time, promptly identify potential problems, and improve operational safety and reliability. The wireless connection function between the control terminal and the controller enables operators to remotely and synchronously control the start and stop of the traction device, view the cable tension data, and adjust the travel speed of the mobile base, greatly improving the ease of operation and automation of the equipment. It enhances the human-machine interaction experience, reduces the need for human intervention, improves laying efficiency, and also reduces the risks caused by misoperation.

[0016] Preferably, the control device further includes a warning light disposed on the controller, the warning light being electrically connected to the controller, and the warning light activating when the tension sensor data is abnormal.

[0017] By adopting the above technical solution, when the tension sensor detects abnormal wire tension data, the warning light will promptly issue a warning signal. This design can quickly alert workers to potential problems, avoiding laying quality issues or equipment damage caused by uncontrolled tension, thereby improving the safety and reliability of the entire laying process.

[0018] Preferably, the mobile base is provided in two parts, including a first mobile base and a second mobile base. The traction device and the controller are provided on the first mobile base, and the erection device is provided on the second mobile base. The two mobile bases are set separately.

[0019] By adopting the above technical solution, the mobile base is divided into a first mobile base and a second mobile base, with traction and erection devices respectively arranged on each, thus achieving functional module separation. This design enables the equipment to have greater flexibility and adaptability in complex terrain conditions, avoiding operational inconvenience caused by an overly centralized overall structure. Simultaneously, the separate arrangement helps reduce the load weight of individual bases, improves the stability of the traveling wheels on the rails, and further enhances the overall performance of the equipment.

[0020] Preferably, the cable guide device includes a first guide wheel disposed near the traction device and a second guide wheel located behind the first guide wheel. The first guide wheel is fixedly disposed, and the second guide wheel is driven by a third driving member to move along the vertical direction of the cable during cable laying.

[0021] By adopting the above technical solution, the fixed setting of the first guide wheel can stably guide the direction of cable release from the cable reel, ensuring that the cable will not deviate or twist in the initial stage. The second guide wheel is driven by the third drive unit to move along the vertical direction of the cable during installation, which can dynamically adjust the position of the cable, keeping it on the ideal laying path and effectively avoiding cable deviation caused by terrain changes or other external factors. This design significantly improves the accuracy and stability of contact wire laying, while reducing safety hazards and subsequent correction workload caused by cable position deviation.

[0022] Preferably, it also includes a power source, which is disposed above the first movable base to supply power to the device, and the power source is configured as an electric power source.

[0023] By adopting the above technical solution, the power source is located above the first mobile base and supplies power to the entire device, freeing it from dependence on external energy supply and improving its autonomy and flexibility. Setting the power source as an electric power source not only ensures the stability and cleanliness of the energy supply but also facilitates remote control and automated operation, further enhancing the applicability and environmental performance of the entire laying system.

[0024] Preferably, the movable base further includes a track-changing device, which is disposed at the end of the support base to perform track-changing operations on the movable base.

[0025] By adopting the above technical solution, the track-changing device is installed at the end of the support base, which can effectively cope with the needs of complex terrain and special road sections, improving the adaptability and operating range of the equipment. It enhances the mobility of the entire laying device, enabling it to not only operate on straight tracks but also smoothly lay contact wires in scenarios such as junctions and curves, significantly improving construction efficiency and flexibility.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The mobile base is combined with the traction device. The first and second drive components control the movement of the traveling wheels and the rotating shaft, respectively, which enables the equipment to move autonomously on the rails and accurately lay out the cables, improving the efficiency and adaptability of the catenary installation. 2. The tension monitoring system monitors the changes in wire tension in real time and automatically adjusts the actions of the first and second drive components through the controller to ensure that the tension remains stable during the cable laying process, effectively solving the problem of tension fluctuation under complex terrain.

[0028] 3. The lifting platform and cable guide device in the erection device work together to accurately guide the cable to the designated position, simplifying the construction process and making it particularly suitable for operation in narrow spaces or special road sections. Attached Figure Description

[0029] Figure 1 This is a front view of a high-speed railway power supply contact wire laying device according to this application.

[0030] Figure 2 This is a top view of a high-speed railway power supply contact wire laying device according to this application.

[0031] Explanation of reference numerals in the attached drawings: 1. Movable base; 11. First movable base; 111. Support base; 112. Traveling wheel; 113. First driving component; 12. Second movable base; 13. Track changing device; 2. Traction device; 21. Mounting frame; 22. Cable reel; 23. Rotating shaft; 24. Second driving component; 25. Tension monitoring system; 251. Tension sensor; 3. Erection device; 31. Elevator; 32. Cable guide device; 321. First guide wheel; 322. Second guide wheel; 323. Third driving component; 4. Control device; 41. Controller; 42. Multi-stage brake; 43. Camera; 44. Control terminal; 45. Warning light; 5. Power source. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0033] This application discloses a device for laying power supply contact wires for high-speed railways. (Refer to...) Figure 1 The high-speed railway power supply contact line laying device includes a mobile base 1, a traction device 2, an erection device 3, and a control device 4.

[0034] Specifically, the mobile base 1 consists of a support base 111, wheels 112, and a first drive component 113. The support base 111, as the main load-bearing structure of the entire device, should preferably be made of high-strength steel (such as Q345B steel) to possess excellent tensile strength. The wheels 112 can be made of rubber or use metal ball bearings, depending on actual needs, to adapt to different track surfaces. The first drive component 113 can be a servo motor paired with a reducer, providing smooth power output characteristics and facilitating precise control of speed parameter changes.

[0035] A track-changing device 13 is also added to the mobile base 1, which is located at the end of the support base 111 to complete complex track switching tasks.

[0036] The mobile base 1 includes a first mobile base 11 and a second mobile base 12. The traction device 2 and the control device 4 are located above the support seat 111 of the first mobile base 11, and the erection device 3 is located above the support seat 111 of the second mobile base 12. The equipment is flexible and lightweight, making it easy to carry out overhead line operations in complex environments and easy to adjust.

[0037] The traction device 2 mainly includes a mounting frame 21, a cable reel 22, a rotating shaft 23, and a second drive component 24. The mounting frame 21 is made of aluminum alloy sheet, making it lightweight yet sturdy and durable. The cable reel 22 has a diameter of approximately 1 meter and a cylindrical body design. The rotating shaft 23 is made of stainless steel tubing to ensure reliability and service life. The second drive component 24 uses a permanent magnet synchronous motor to drive the rotating shaft 23 to achieve the cable unloading function. Simultaneously, a tension monitoring system 25 is installed, including a high-sensitivity tension sensor 251, for real-time monitoring of cable tension changes.

[0038] The erection device 3 is fixed above the second movable base 12 near the rear, and consists of a lifting ladder 31 and a cable guide device 32. The lifting ladder 31 uses a scissor-type hydraulic cylinder to achieve vertical lifting operation, flexibly adapting to on-site needs.

[0039] Reference Figure 2 The cable guide device 32 includes two key components: a first guide wheel 321 and a second guide wheel 322. The first guide wheel 321 is fixedly installed, while the second guide wheel 322 can be moved and adjusted in position along the vertical direction of the cable during cable laying by a third drive member 323, further optimizing the cable laying effect. The third drive member 323 can be configured as a hydraulic telescopic rod or an electric telescopic rod, or it can be configured as a lead screw driven by a motor.

[0040] Reference Figure 2The control device 4 includes a controller 41 and other auxiliary components, all mounted on the first movable base 11. The controller 41 integrates a high-performance microprocessor unit, capable of receiving data from the tension sensor 251 and precisely controlling the actions of the first drive component 113 and the second drive component 24. For example, when the wire tension exceeds a preset threshold, the controller 41 immediately issues a command to reduce the rotation speed of the second drive component 24 to decrease the wire feeding rate, thereby maintaining an ideal tension state. Furthermore, the control device 4 is equipped with multiple expansion interfaces, supporting external devices such as a camera 43 and a warning light 45 to enhance the system's functionality and safety. The camera 43 can capture the status image of the cable reel 22 and transmit it wirelessly to the remote control terminal 44, allowing the operator to monitor the situation at any time; the warning light 45 illuminates when the tension sensor 251 data is abnormal, alerting staff to address the issue.

[0041] The control device 4 also includes a control terminal 44. The camera 43 is located at the top of the mounting bracket 21 near the cable reel 22. After being electrically connected to the controller 41, it can capture clear images and transmit video streams to the remote control terminal 44 interface for staff to view and monitor the progress.

[0042] The control device 4 also includes a multi-stage brake 42, which uses hydraulic braking technology and is connected to the controller 41. It can quickly cut off the power supply in an emergency to prevent accidents from causing equipment damage or increased risk of personal injury.

[0043] The implementation principle of the high-speed railway power supply contact wire laying device according to this application embodiment is as follows: The design of the movable base 1 enables the entire device to move stably on the rails, ensuring the flexibility and adaptability of the construction process. The cable reel 22 in the traction device 2, in conjunction with the tension monitoring system 25, can monitor and adjust the cable tension in real time, ensuring the consistency and stability of tension during the erection process and effectively avoiding quality problems caused by tension fluctuations. The erection device 3, through the coordinated action of the lifting ladder 31 and the cable guide device 32, accurately guides the cable route, improving the erection efficiency and accuracy. The control device 4 uses the controller 41 to integrate and manage the actions of each component, and intelligently adjusts the working status of the movable base 1 and the traction device 2 based on the data fed back by the tension sensor 251, thereby optimizing the overall operation process, improving work efficiency, and reducing the uncertainty caused by human intervention.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for laying power supply contact wires for high-speed railways, characterized in that: include: The mobile base (1) includes a support (111) and a traveling wheel (112) disposed below the support (111), and a first driving member (113) for driving the traveling wheel (112) to move, the traveling wheel (112) moving on the rail. The traction device (2) includes a mounting frame (21) installed above the support base (111) and fixedly disposed on the support base (111), and a cable reel (22) located above the mounting frame (21). The cable reel (22) is mounted on the mounting frame (21) via a rotating shaft (23) placed on the mounting frame (21). The rotating shaft (23) is rotatably disposed with the mounting frame (21), and a second driving member (24) is provided at one end of the rotating shaft (23) to drive the rotating shaft (23) to rotate for cable unloading. The traction device (2) also includes a tension monitoring system (25), which includes a tension sensor (251) that monitors changes in wire tension. The erection device (3) is installed above the mobile base (1) and behind the traction device (2). It includes a lift (31) and a cable guide device (32) installed on the lift (31). The cable guide device (32) guides the wires on the cable reel (22). The control device (4) includes a controller (41), which is mounted on the movable base (1) and electrically connected to the first drive member (113), the second drive member (24) and the tension sensor (251). The controller (41) controls the braking of the first drive member (113) and the second drive member (24) according to the data of the tension sensor (251) to adjust the tension of the overhead line and keep it consistent.

2. The high-speed railway power supply contact wire laying device according to claim 1, characterized in that: The control device (4) also includes a multi-stage brake (42) mounted on the traction device (2). The brake is hydraulically braked and electrically connected to the controller (41), and the brake is used to brake and adjust the tension.

3. The high-speed railway power supply contact wire laying device according to claim 2, characterized in that: The control device (4) also includes a camera (43) and a control terminal (44). The camera (43) is set above the mounting bracket (21) and located on one side of the cable reel (22), and is electrically connected to the controller (41). The control terminal (44) is wirelessly connected to the controller (41) and synchronously controls the start and stop of the traction device (2), intuitively displays the tension of the wire-laying device, the travel speed of the moving base (1), and displays the status of the cable reel on the high-definition camera (43).

4. The high-speed railway power supply contact wire laying device according to claim 3, characterized in that: The control device (4) also includes a warning light (45) installed on the controller (41). The warning light (45) is electrically connected to the controller (41). When the data of the tension sensor (251) is abnormal, the warning light (45) will issue a warning.

5. The high-speed railway power supply contact wire laying device according to claim 1, characterized in that: The mobile base (1) is configured as two, including a first mobile base (11) and a second mobile base (12). The traction device (2) and the controller (41) are configured on the first mobile base (11), and the erection device (3) is configured on the second mobile base (12). The two mobile bases (1) are configured separately.

6. The high-speed railway power supply contact wire laying device according to claim 1, characterized in that: The cable guide device (32) includes a first guide wheel (321) disposed near the traction device (2) and a second guide wheel (322) located behind the first guide wheel (321). The first guide wheel (321) is fixedly disposed, and the second guide wheel (322) is driven by a third drive member (323) to move along the vertical direction of the cable during cable laying.

7. The high-speed railway power supply contact wire laying device according to claim 5, characterized in that: It also includes a power source (5), which is located above the first mobile base (11) to supply power to the equipment. The power source (5) is configured as an electric power source.

8. The high-speed railway power supply contact wire laying device according to any one of claims 1-7, characterized in that: The mobile base (1) also includes a track-changing device (13), which is disposed at the end of the support base (111) to perform track-changing operations on the mobile base (1).

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