Railway ballast bed drying device

Abstract

The invention discloses a railway ballast bed drying device which comprises a generator set carried on a railway flatcar, a fuel oil air heater, a high-pressure fan, a hot air conveying pipeline, a mechanical arm and a vibration type downward inserting device. The generator set provides power for the railway ballast bed drying device; an air outlet pipe of the fuel oil air heater is connected with a high-pressure fan to generate high-pressure hot air; the inlet end of the hot air conveying pipeline is connected with an air outlet pipe of the high-pressure fan, and the outlet end of the hot air conveying pipeline extends to the mechanical arm and is connected with an air inlet of the vibration type downward inserting device through a quick clamp connector. A vibration mechanism is arranged in the vibration type downward insertion device, honeycomb-shaped air outlet holes are formed in the side wall, and a conical structure is adopted at the tail end; a base of the mechanical arm is installed on a railway flatcar, and the tail end of the mechanical arm is rigidly connected with a top installation plate of the vibration type downward-inserting device through a flange. The problems of insufficient hot air permeation, high energy consumption, inflexible operation, potential safety hazards and the like can be solved, and rapid and reliable drying maintenance of railway ballast beds in humid climate areas is met.

Description

Technical Field

[0001] This invention relates to the field of railway maintenance equipment technology, and in particular to a railway track bed drying device. Background Technology

[0002] Railway ballast (crushed stone / ballast) can suffer from reduced load-bearing capacity, decreased drainage capacity, and ballast subsidence after becoming damp, waterlogged, or subject to freeze-thaw cycles, directly impacting track safety and train speed. Traditional ballast drying methods rely mainly on natural air drying, manual turning of ballast, or partial mechanical turning. These methods are time-consuming, inefficient, require significant track occupancy, are labor-intensive, and are ineffective in rainy seasons and cold regions. To improve maintenance efficiency and reduce track occupancy time, several vehicle-mounted or mobile heating / blowing drying devices have emerged in recent years. These devices use hot air to heat and dry the ballast surface, achieving some success. However, significant technical bottlenecks remain, making it difficult to meet the integrated requirements of deep drying, energy consumption, and operational safety in humid climates.

[0003] Based on a comprehensive analysis of existing vehicle-mounted hot air and track bed drying devices, the following main problems exist: (1) Insufficient hot air penetration depth and uneven drying. Existing equipment mostly uses surface or near-surface heating and blowing, which makes it difficult for heat to penetrate into the deeper wet areas of the track bed. As a result, the surface dries quickly but the deeper layers remain damp, requiring repeated operations or manual turning of the ballast to achieve the desired effect.

[0004] (2) High energy consumption and low thermal efficiency. Traditional fuel or electric heating with inefficient air path design results in a large amount of heat loss during transportation (pipe heat dissipation and environmental heat dissipation), and it is difficult to recover the heat of moisture, resulting in high energy consumption per unit drying capacity and increased operation and maintenance costs.

[0005] (3) The operation positioning and angle are limited and the applicability is poor. Existing fixed blowing or single-angle insertion devices are not easy to accurately position and adjust when the track, guardrail and trackside facilities are complex, making it difficult to achieve deep, fixed-point and flexible downward insertion drying.

[0006] (4) Insufficient automation and monitoring of operations, lack of real-time sensing and closed-loop control for track bed humidity, insertion depth and vibration status, operations rely on manual experience for adjustment, efficiency and safety are limited, and it is difficult to achieve high-quality automated operation.

[0007] (5) Insufficient dust and moisture treatment, secondary environmental pollution and risk of backflow. Dust, steam and water mist will be generated during the drying process. If there is no effective recycling and filtration, it will cause secondary pollution. Moreover, the vibration of the insertion can easily cause the surrounding gravel to be sucked back into the return air path, affecting the safety and cleanliness of the equipment.

[0008] (6) The equipment lacks safety protection and track fixing measures. In the high-speed train environment, the equipment needs to have reliable emergency braking linkage, thermal isolation and anti-scalding protection, track clamp fixing and other safety measures. The existing equipment is not perfect in terms of emergency response and personnel and equipment protection.

[0009] (7) Insufficient modularity, maintenance and energy management: The existing system has limited support for modular integration, rapid disassembly and maintenance and energy recovery (braking / driving charging) and hybrid energy management, which limits field adaptability and long-term operating cost optimization. Summary of the Invention

[0010] The purpose of this invention is to provide a railway track bed drying device to solve at least one of the above-mentioned technical problems. It can overcome the problems of insufficient hot air penetration, high energy consumption, inflexible operation and environmental / safety hazards in the prior art, and meet the needs of railway track beds in humid climate areas for fast and reliable drying and maintenance.

[0011] The embodiments of the present invention are implemented as follows: A railway track bed drying device includes a generator set mounted on a railway flatcar, a fuel-fired hot air blower, a high-pressure blower, a hot air delivery pipeline, a robotic arm, and a vibratory insertion device.

[0012] The generator set provides power to the railway track bed drying device.

[0013] The air outlet pipe of the fuel-fired hot air heater is connected to the high-pressure blower to generate high-pressure hot air.

[0014] The inlet end of the hot air conveying pipe is connected to the outlet pipe of the high-pressure blower, and the outlet end extends to the robotic arm, where it is connected to the air inlet of the vibrating insertion device via a quick clamp connector.

[0015] The vibrating insertion device has a vibration mechanism inside, honeycomb-shaped air outlets on the side wall, and a conical structure at the end.

[0016] The base of the robotic arm is mounted on the railway flatcar, and its end is rigidly connected to the top mounting plate of the vibrating insertion device via a flange for positioning and angle adjustment.

[0017] In a preferred embodiment of the present invention, in the above-mentioned railway track bed drying device, the generator set is installed at the front or rear end of the frame of the railway flatcar, and the output power is distributed through the distribution cabinet to the servo driver of the robotic arm, the electronic control valve and igniter of the fuel hot air blower, and the variable frequency motor of the high-pressure blower.

[0018] The generator set adopts a hybrid power system, including an external shore power interface and an energy feedback unit, as well as a battery pack and / or a supercapacitor.

[0019] In a preferred embodiment of the present invention, in the above-mentioned railway track bed drying device, the air outlet pipe of the fuel oil hot air heater and the air inlet pipe of the high-pressure blower are directly connected by a short pipe.

[0020] The fuel-fired hot air heater and the high-pressure blower are mounted on a vibration-damping base.

[0021] The vibration damping base is fixed to the railway flatcar by anchor bolts.

[0022] In a preferred embodiment of the present invention, in the above-mentioned railway track bed drying device, the main body of the hot air conveying pipe is made of a high-temperature resistant corrugated hose.

[0023] The hot air delivery pipe is covered with an insulation layer.

[0024] The middle part of the hot air conveying pipe is suspended and fixed to the side railings or special brackets of the railway flatcar by at least one support ring.

[0025] The quick-clamp joint between the hot air delivery pipe and the vibrating insertion device is rotatable.

[0026] In a preferred embodiment of the present invention, in the above-mentioned railway track bed drying device, the robotic arm is a six-degree-of-freedom robotic arm with a quick-change interface at the end, and a robotic arm flange is provided on the quick-change interface.

[0027] The robotic arm flange is connected to the corresponding flange on the top mounting plate of the vibratory insertion device via high-strength bolts.

[0028] The pneumatic and electrical interfaces of the quick-change interface are integrated inside the end of the robotic arm.

[0029] In a preferred embodiment of the present invention, the above-mentioned railway track bed drying device further includes a sensor module and a programmable control module.

[0030] The sensor module is installed at the head of the vibrating insertion device and at the joint of the robotic arm, and is used to collect track bed temperature and humidity, insertion depth and vibration status.

[0031] The programmable control module is installed in the control cabinet of the railway flatcar and is connected to the sensor module via cables to control the drying of the railway track bed drying device.

[0032] In a preferred embodiment of the present invention, the above-mentioned railway track bed drying device further includes a negative pressure recovery and filtration module, which is installed on the railway flatcar.

[0033] The upper part of the vibrating insertion device is provided with an air extraction port, which is located above the honeycomb-shaped air outlet of the vibrating insertion device and is equipped with a one-way valve.

[0034] The negative pressure recovery and filtration module is connected to the air extraction port via an air extraction hose.

[0035] In a preferred embodiment of the present invention, the negative pressure recovery and filtration module of the above-mentioned railway track bed drying device includes an electrical control unit, and also includes a cyclone separator, a surface cooler, a bag filter and a vacuum fan arranged sequentially along the airflow direction.

[0036] The electronic control unit is communicatively connected to the programmable control module, and the vacuum blower is driven by a variable frequency motor, adjusting the suction power according to the feedback from the sensor module.

[0037] In a preferred embodiment of the present invention, the above-mentioned railway track bed drying device further includes a safety protection module, which includes a solenoid valve, a heat isolation cover, a scalding cover, and a track clamp.

[0038] The solenoid valve is installed in series in the air braking system or oil main pipeline of the railway flatcar. The electrical control terminal is connected to the emergency output interface of the programmable control module via a cable to receive emergency stop signals and trigger the flatcar brake.

[0039] The thermal insulation cover is made of high-temperature resistant metal material and is fixed to the railway flatcar by a bracket, surrounding and covering the outer surface of the fuel-fired hot air blower and the high-pressure blower, as well as the exposed section of the hot air delivery pipe.

[0040] The heat-resistant cover adopts a multi-segment hinged openable structure. The base of the heat-resistant cover is installed on the surface of the robotic arm through a bracket. The heat-resistant cover moves with the robotic arm and covers the outer periphery of the vibrating insertion device.

[0041] The rail clamps are symmetrically arranged on both sides of the bottom of the railway flatcar frame, and are fixedly connected to the main beam of the frame. The drive end of the rail clamp extends downward to clamp the rail head or rail web.

[0042] In a preferred embodiment of the present invention, in the above-mentioned railway track bed drying device, the fuel-fired hot air blower and the high-pressure blower are jointly installed on the same modular integrated vibration damping base, and the vibration damping base is fixed to the base plate in the middle of the railway flatcar by positioning pins and anti-vibration locking wedges.

[0043] The robotic arm is fixed to a heavy-duty mounting panel pre-embedded on the railway flatcar by high-strength bolts.

[0044] The hot air delivery pipeline uses segmented high-temperature resistant flexible hoses, with each segment connected by a quick flange with a sealing ring.

[0045] The beneficial effects of the embodiments of the present invention are: The railway ballast drying device of this invention effectively overcomes the problems of insufficient hot air penetration, high energy consumption, inflexible operation, and environmental and safety hazards in existing technologies by using a robotic arm and vibrating insertion device for deep hot air delivery, heat and moisture recovery, hybrid power and energy feedback, sensor closed-loop control, and comprehensive safety protection and modular design. It meets the needs of rapid and reliable drying and maintenance of railway ballast in humid climates. It achieves deep, targeted, and uniform drying of the ballast, significantly shortening drying time and reducing reliance on manual ballast turning, thus lowering unit drying energy consumption. Energy efficiency is improved through insulated delivery, heat recovery, and hybrid power / energy feedback management. It enhances the automation and stability of operations, enabling sensor-based closed-loop control and reducing human error risks. Attached Figure Description

[0046] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the railway track bed drying device of the present invention; Figure 2 This is a schematic cross-sectional view of the vibrating insertion device of the railway track bed drying device of the present invention.

[0048] In the diagram: 1-Railway flatcar; 2-Generator set; 3-Fuel-fired hot air blower; 4-High-pressure blower; 5-Hot air conveying pipeline; 6-Robotic arm; 7-Vibrating insertion device; 8-Battery slab. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0050] Please refer to Figures 1 to 2The first embodiment of the present invention provides a railway track bed drying device, which includes a generator set 2, a fuel-fired hot air blower 3, a high-pressure blower 4, a hot air conveying pipe 5, a robotic arm 6, and a vibrating insertion device 7 mounted on a railway flatcar 1. The generator set 2 provides power to the railway track bed drying device. The air outlet pipe of the fuel-fired hot air blower 3 is connected to the high-pressure blower 4 to generate high-pressure hot air. The inlet end of the hot air conveying pipe 5 is connected to the air outlet pipe of the high-pressure blower 4 through a high-temperature flange, and the outlet end extends to the robotic arm 6 and is connected to the air inlet of the vibrating insertion device 7 through a quick clamp connector. The vibrating insertion device 7 is provided with a vibration mechanism inside, honeycomb-shaped air outlet holes on the side wall, and a conical structure at the end. The base of the robotic arm 6 is mounted on the railway flatcar 1, and the end is rigidly connected to the top mounting plate of the vibrating insertion device 7 through a flange for positioning and angle adjustment.

[0051] In a preferred embodiment of the present invention, in the above-mentioned railway track bed drying device, the generator set 2 is installed at the front or rear end of the frame of the railway flatcar 1, and the output power is distributed through the distribution cabinet to the servo driver of the robotic arm 6, the electronic control valve and igniter of the fuel oil hot air blower 3, and the variable frequency motor of the high-pressure blower 4; the generator set 2 adopts a hybrid power system, including an external shore power interface and an energy feedback unit, as well as a battery pack and / or supercapacitor, which can be charged during driving or braking, and realize automatic switching between fuel oil power generation and energy storage power consumption paths.

[0052] In a preferred embodiment of the present invention, in the above-mentioned railway track bed drying device, the air outlet pipe of the fuel oil hot air blower 3 and the air inlet pipe of the high pressure blower 4 are directly connected by a short pipe; the fuel oil hot air blower 3 and the high pressure blower 4 are mounted on a vibration damping base; the vibration damping base is fixed to the railway flatcar 1 by anchor bolts.

[0053] In a preferred embodiment of the present invention, in the above-mentioned railway track bed drying device, the main body of the hot air conveying pipe 5 is made of high-temperature resistant corrugated hose; the outside of the hot air conveying pipe 5 is covered with a heat insulation layer; the middle part of the hot air conveying pipe 5 is suspended and fixed on the side railings or special brackets of the railway flatcar 1 by at least one support ring; the quick clamp joint between the hot air conveying pipe 5 and the vibrating insertion device 7 is rotatable to adapt to multi-angle operation of the robotic arm.

[0054] In a preferred embodiment of the present invention, in the above-mentioned railway track bed drying device, the robotic arm 6 is a six-degree-of-freedom robotic arm with a quick-change interface at its end, and a robotic arm flange is provided on the quick-change interface; the robotic arm flange is connected to the corresponding flange on the top mounting plate of the vibrating insertion device 7 by four or more high-strength bolts; the air and electrical interfaces of the quick-change interface are integrated inside the end of the robotic arm 6.

[0055] In a preferred embodiment of the present invention, the above-mentioned railway track bed drying device further includes a sensor module and a programmable control module; the sensor module is installed at the head of the vibrating insertion device 7 and the joint of the robotic arm 6, and is used to collect track bed temperature and humidity, insertion depth and vibration status; the programmable control module is installed in the control cabinet of the railway flatcar 1, and is connected to the sensor module through a cable to control the drying of the railway track bed drying device.

[0056] In a preferred embodiment of the present invention, the above-mentioned railway track bed drying device further includes a negative pressure recovery and filtration module, which is installed on the railway flatcar 1; the upper part of the vibrating insertion device 7 is provided with an air extraction port, which is located above the honeycomb-shaped air outlet of the vibrating insertion device 7 and is provided with a one-way valve to prevent backflow of ballast; the negative pressure recovery and filtration module is connected to the air extraction port through an air extraction hose.

[0057] In a preferred embodiment of the present invention, in the above-mentioned railway track bed drying device, the negative pressure recovery and filtration module includes an electrical control unit, and further includes a cyclone separator for collecting large dust particles, a surface cooler for cooling humid air and condensing water vapor, a bag filter for filtering fine dust, and a vacuum fan for providing suction power, arranged sequentially along the airflow direction; the electrical control unit is communicatively connected to the programmable control module, and the vacuum fan is driven by a variable frequency motor, automatically adjusting the suction power according to the steam and dust concentration in the working area fed back by the sensor module.

[0058] In a preferred embodiment of the present invention, the above-mentioned railway track bed drying device further includes a safety protection module, which includes a solenoid valve, a heat isolation cover, a scalding shield, and a track clamp; the solenoid valve is installed in series in the air braking system or oil main pipeline of the railway flatcar 1, and the electrical control terminal is connected to the emergency output interface of the programmable control module via a cable, for receiving emergency stop signals and triggering the flatcar brake; the heat isolation cover is made of high-temperature resistant metal material, and is fixed on the railway flatcar 1 by a bracket, surrounding and covering the fuel-fired hot air blower 3. The outer surface of the high-pressure blower 4 and the exposed section of the hot air conveying pipe 5; the anti-scalding cover adopts a multi-segment hinged openable structure, the base of the anti-scalding cover is installed on the arm surface of the robotic arm 6 through a bracket, the anti-scalding cover moves with the robotic arm 6 and covers the outer periphery of the vibrating insertion device 7; the rail clamps are symmetrically arranged on both sides of the bottom of the frame of the railway flatcar 1, and are fixedly connected to the main beam of the frame, the hydraulic drive or screw drive execution end of the rail clamps extends downward to clamp the rail head or rail web of the rail.

[0059] In a preferred embodiment of the present invention, in the above-mentioned railway track bed drying device, the fuel-fired hot air blower 3 and the high-pressure blower 4 are jointly installed on the same modular integrated vibration damping base. The vibration damping base is fixed to the base plate in the middle of the railway flatcar 1 by positioning pins and anti-vibration locking wedges. The robotic arm 6 is fixed to the heavy-duty mounting panel pre-embedded on the railway flatcar 1 by high-strength bolts. The hot air conveying pipe 5 adopts a segmented high-temperature resistant hose, and each segment is connected by a quick flange with a sealing ring.

[0060] All electrical, pneumatic and signal interfaces of the vehicle are centrally located in a quick-connect box on one side of the railway flatcar 1. The quick-connect box is connected to the output terminal of the generator set 2, the execution terminal of the control cabinet and the corresponding interface of each functional module through cables and pipes.

[0061] Please refer to Figure 2 The second embodiment of the present invention provides a railway track bed drying device. The flatcar runs at a speed of 15 km / h, and the generator set 6 outputs 380V three-phase power. The robotic arm 6 inserts the vibrating insertion device 7 into the track bed ballast 8 at a 30° angle to a depth of 0.5m. The hot air temperature is set at 120°C, the air volume is 8m³ / min, and the single-point operation time is 3 minutes.

[0062] The embodiments of the present invention aim to protect a railway track bed drying device, which has the following effects: 1. Improve hot air penetration depth and drying uniformity. The railway track bed drying device of the present invention adopts a combination of a fuel-fired hot air blower and a short pipe directly connected to a high-pressure blower, a vibration-damping base and a vibrating insertion device. The insertion device is equipped with a vibration mechanism, a conical end, and honeycomb air outlets on the side walls. This allows the high-pressure hot air to penetrate the deep layers of the track bed more effectively along the insertion direction with the assistance of vibration, realizing deep heat convection and vaporization, solving the problem of surface dryness and deep wetness, thereby reducing repeated operations and the frequency of manual ballast turning.

[0063] 2. Reduced energy consumption and improved thermal efficiency. The railway track bed drying device of this invention uses a high-temperature resistant corrugated hose with insulation covering for the hot air conveying pipe, a short pipe direct connection air path design, and a surface cooler in the negative pressure recovery module to recover condensate and part of the heat, reducing heat loss during the conveying process and recovering moisture heat energy; in addition, the generator set adopts a hybrid power system and is equipped with a battery / supercapacitor and an energy feedback unit to realize energy recovery and switching, reducing fuel consumption and overall energy consumption.

[0064] 3. Enables fixed-point, flexible-angle, and depth-controllable insertion operations. The railway track bed drying device of this invention adopts a six-degree-of-freedom robotic arm and a quick-change interface. The end of the robotic arm is rigidly connected to the top mounting plate of the vibration-type insertion device, which can be positioned and adjusted in angle. With the help of quick clamps, it can be rotated to achieve multi-angle operation to adapt to different track side structures and track bed conditions, thereby significantly improving applicability and operation coverage.

[0065] 4. Automation and Closed-Loop Control. The railway track bed drying device of this invention is equipped with a sensor module to collect track bed temperature and humidity, insertion depth and vibration status, and is centrally controlled through a programmable control module. Combined with the frequency conversion control of the vacuum fan in the negative pressure recovery module, it realizes automatic adjustment of suction power and drying parameters based on sensor feedback, thereby improving operation quality, reducing human intervention and enhancing safety.

[0066] 5. Preventing backflow of ballast and handling dust and moisture. This invention incorporates an air extraction port and a one-way valve on the vibrating insertion device, and uses a negative pressure recovery and filtration module to classify and treat large particles, condensate, and fine dust, reducing secondary pollution and blockage of the return air system, thus protecting equipment operation and environmental hygiene.

[0067] 6. Improve safety protection and track fixing measures. This invention sets up a solenoid valve connected in series in the flatcar's air / oil circuit and linked to the emergency output interface of the programmable control module. At the same time, it adopts modular safety protection such as high-temperature heat insulation cover, anti-scalding cover and track clamps to ensure that braking can be triggered quickly in abnormal or emergency stop situations to protect personnel and equipment and improve on-site operation safety.

[0068] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A railway track bed drying device, characterized in that, It includes a generator set (2) mounted on a railway flatcar (1), a fuel oil hot air blower (3), a high-pressure blower (4), a hot air delivery pipe (5), a robotic arm (6), and a vibrating insertion device (7). The generator set (2) provides power to the railway track bed drying device; The air outlet pipe of the fuel-fired hot air heater (3) is connected to the high-pressure blower (4) to generate high-pressure hot air; The inlet end of the hot air conveying pipe (5) is connected to the outlet pipe of the high pressure blower (4), and the outlet end extends to the robotic arm (6), and is connected to the air inlet of the vibrating insertion device (7) through a quick clamp connector. The vibrating insertion device (7) has a vibration mechanism inside, honeycomb-shaped air outlet on the side wall, and a conical structure at the end. The base of the robotic arm (6) is mounted on the railway flatcar (1), and its end is rigidly connected to the top mounting plate of the vibrating insertion device (7) via a flange for positioning and angle adjustment.

2. The railway track bed drying device according to claim 1, characterized in that, The generator set (2) is installed at the front or rear of the frame of the railway flatcar (1), and the output power is distributed through the distribution cabinet to the servo driver of the robotic arm (6), the electronic control valve and igniter of the fuel hot air blower (3) and the variable frequency motor of the high pressure blower (4). The generator set (2) adopts a hybrid power system, including an external shore power interface and an energy feedback unit, as well as a battery pack and / or a supercapacitor.

3. The railway track bed drying device according to claim 1, characterized in that, The air outlet pipe of the fuel-fired hot air heater (3) is directly connected to the air inlet pipe of the high-pressure blower (4) by a short pipe; The fuel-fired hot air blower (3) and the high-pressure blower (4) are mounted on a vibration-damping base; The vibration damping base is fixed to the railway flatcar (1) by anchor bolts.

4. The railway track bed drying device according to claim 1, characterized in that, The main body of the hot air conveying pipe (5) is made of high temperature resistant corrugated hose; The hot air conveying pipe (5) is covered with an insulation layer; The middle part of the hot air conveying pipe (5) is suspended and fixed on the guardrails or special brackets on both sides of the railway flatcar (1) by at least one support ring. The quick clamp joint between the hot air delivery pipe (5) and the vibrating insertion device (7) is rotatable.

5. The railway track bed drying device according to claim 1, characterized in that, The robotic arm (6) is a six-degree-of-freedom robotic arm with a quick-change interface at the end, and a robotic arm flange is provided on the quick-change interface; The robotic arm flange is connected to the corresponding flange on the top mounting plate of the vibrating insertion device (7) by high-strength bolts. The pneumatic and electrical interfaces of the quick-change interface are integrated inside the end of the robotic arm (6).

6. The railway track bed drying device according to claim 1, characterized in that, It also includes a sensor module and a programmable control module; The sensor module is installed at the head of the vibrating insertion device (7) and the joint of the robotic arm (6) to collect track bed temperature and humidity, insertion depth and vibration status. The programmable control module is installed in the control cabinet of the railway flatcar (1) and is connected to the sensor module via a cable to control the drying of the railway track bed drying device.

7. The railway track bed drying device according to claim 6, characterized in that, It also includes a negative pressure recovery and filtration module, which is installed on the railway flatcar (1); The upper part of the vibrating insertion device (7) is provided with an air extraction port, which is located above the honeycomb-shaped air outlet of the vibrating insertion device (7) and is equipped with a one-way valve. The negative pressure recovery and filtration module is connected to the air extraction port via an air extraction hose.

8. The railway track bed drying device according to claim 7, characterized in that, The negative pressure recovery and filtration module includes an electronic control unit, as well as a cyclone separator, a surface cooler, a bag filter, and a vacuum fan arranged sequentially along the airflow direction; The electronic control unit is communicatively connected to the programmable control module, and the vacuum blower is driven by a variable frequency motor, adjusting the suction power according to the feedback from the sensor module.

9. The railway track bed drying device according to claim 1, characterized in that, It also includes a safety protection module, which includes a solenoid valve, a thermal isolation cover, a scalding shield, and a track clamp; The solenoid valve is installed in series in the air braking system or oil main pipeline of the railway flatcar (1). The electrical control end is connected to the emergency output interface of the programmable control module through a cable to receive emergency stop signals and trigger the flatcar brake. The thermal isolation cover is made of high-temperature resistant metal material and is fixed on the railway flatcar (1) by a bracket, surrounding and covering the outer surface of the fuel oil hot air blower (3) and the high-pressure blower (4) as well as the exposed section of the hot air conveying pipe (5); The heat-proof cover adopts a multi-segment hinged openable structure. The base of the heat-proof cover is installed on the surface of the arm of the robotic arm (6) through a bracket. The heat-proof cover moves with the robotic arm (6) and covers the outer periphery of the vibrating insertion device (7). The rail clamps are symmetrically arranged on both sides of the bottom of the frame of the railway flatcar (1), and are fixedly connected to the main beam of the frame. The drive end of the rail clamp extends downward to clamp the rail head or rail web.

10. The railway track bed drying device according to claim 3, characterized in that, The fuel-fired hot air blower (3) and the high-pressure blower (4) are installed together on the same modular integrated vibration damping base, which is fixed to the base plate in the middle of the railway flatcar (1) by positioning pins and anti-vibration locking wedges. The robotic arm (6) is fixed to the heavy-duty mounting panel pre-embedded on the railway flatcar (1) by high-strength bolts; The hot air conveying pipeline (5) adopts a segmented high-temperature resistant hose, and each segment is connected by a quick flange with a sealing ring.

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