High-speed rail contact line laser deicing vehicle

Abstract

The utility model provides a high-speed rail contact line laser deicing vehicle which comprises a vehicle body, a laser system controlled by a control system is arranged in the vehicle body, and pulse laser emitted by the laser system penetrates through a transparent optical glass window at the upper end of a compartment and irradiates on a contact line for deicing operation. The control system is further used for controlling a lifting mechanism located on the carriage, the lifting mechanism is connected with a scrubbing arm, a scrubbing head used for scrubbing a contact line is arranged at the tail end of the scrubbing arm, a motor driving system and a fuel oil driving system which are connected with the control system are further arranged in the vehicle body, and the motor driving system is connected with a pantograph. The control system collects a current signal in the motor driving system, the current signal is compared with a preset current threshold value in the control system, and when the current signal is smaller than the current threshold value, the motor driving system is not used for providing power for advancing of the vehicle body any more, and the fuel driving system is switched to provide power for advancing of the vehicle body. According to the high-speed rail contact line laser deicing vehicle, ice covering a high-speed rail contact net is removed by emitting high-energy and high-power laser.

Description

Technical Field

[0001] The utility model relates to the technical field of deicing devices, in particular to a high-speed railway contact line laser deicing vehicle. Background Art

[0002] Low temperature, rain, snow and freezing disasters bring huge challenges to the transportation sector in winter, and even cause large-scale delays or suspension of high-speed rail. The main culprit affecting the normal operation of high-speed rail is the icing of the contact network, which is also a global problem faced by all electrified railways. There are four precipitation modes in nature - snow, rain, sleet and freezing rain. The worst of them is freezing rain, which freezes instantly when it falls. The freezing rain condenses into ice very quickly. The more it falls, the thicker and harder the ice layer on the ground will be, and the speed of human protection is difficult to catch up with its freezing speed. Under such weather conditions, the wires above the high-speed rail that provide power to the train are also all wrapped in a thick layer of ice. This is the global problem faced by all electrified railways - icing of the contact network. When the pantograph is raised and connected to the contact network, the high-speed rail can be powered while sliding. If the contact network is covered with ice, because the ice shell is bumpy and uneven, resulting in poor conductivity, electric sparks (arcs) will be generated when the pantograph collects current from the contact network, and in severe cases, it will cause the contact network to burn and burn.

[0003] In addition, ice on the overhead contact network also affects the normal sliding of the pantograph, especially for high-speed rails that use carbon slide pantographs with high-speed current collection performance. If the train is traveling too fast, the ice on the lower surface of the overhead contact network can easily cause the hard and brittle carbon slide to break, directly leading to power outages and trains breaking down halfway. Stopped trains will cause congestion on the entire line, and running trains can easily cause power equipment failures, so they can only slide slowly.

[0004] At present, there are usually three methods of de-icing after the contact network is covered with ice: one is to use electric current to heat and melt the ice, the second is mechanical de-icing, and the third is manual de-icing by beating. The above three methods require the train to stop running, and the effect is difficult to resist the instantaneous freezing of the natural environment. At present, most railway transportation departments use mechanical de-icing. A special EMU with a pantograph that can withstand ice scraping and does not damage the contact line is put on the track. The front pantograph is raised and slid out once, without power or current, to specifically knock off the ice layer. If the ice layer on the contact network is too thick, it is difficult for the pantograph's mechanical de-icing to move forward. In this case, manual de-icing can only be used. Therefore, there is currently no better way to melt ice for high-speed rail transmission line equipment. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the present application proposes a high-speed rail contact line laser deicing vehicle, which can run on the rails by electric or fuel mode, and removes ice on the high-speed rail contact network by emitting high-energy, high-power laser melting to ensure the fast and safe operation of high-speed trains.

[0006] In order to achieve the above-mentioned purpose, the present application proposes a high-speed railway contact line laser deicing vehicle, including a vehicle body, in which a laser system is arranged, the laser system includes a laser power supply, a laser, a beam expander and a reflector, wherein the laser power supply and the laser are both connected to a control system, the control system is used to control whether the laser power supply supplies power to the laser, the control system is also used to control the output power of the laser, the laser power supply is connected to the laser, the pulse laser emitted by the laser is expanded by a beam expander to form a laser beam with a preset divergence angle, which is reflected by the reflector and passes through the transparent optical glass window at the upper end of the car to irradiate the ice-covered contact line for deicing; the control system is also used to control the lifting and lowering of a lifting mechanism located on the car, the lifting mechanism is connected to a scrubbing arm, and a scrubbing head for wiping the contact line is provided at the end of the scrubbing arm. When the lifting mechanism is lifted, the scrubbing head is moved to the end of the scrubbing arm. When the structure rises in a controlled manner, as the vehicle body moves forward, the scrubbing head can wipe the contact line irradiated by the laser; a motor drive system and a fuel drive system are also provided in the vehicle body, and both the motor drive system and the fuel drive system are connected to the control system, and the motor drive system is also connected to the pantograph, and the pantograph is located behind the scrubbing head, and current is collected from the scrubbed contact line through the pantograph and transmitted to the motor drive system, and the control system is used to collect the current signal in the motor drive system, and compare the current signal with the current threshold preset in the control system to determine the effect of laser deicing, and when the current signal is less than the current threshold, the motor drive system is no longer used to provide power for the movement of the vehicle body, and the control system sends a control signal to the fuel drive system to enable the fuel drive system to provide power for the movement of the vehicle body.

[0007] In some embodiments, the lifting mechanism adopts the following structure: it includes a bottom plate arranged on the carriage, two vertical plates are oppositely arranged on the bottom plate, the top ends of the two vertical plates are connected to the top plate, a cylinder controlled by the control system is provided on the lower surface of the top plate, the telescopic rod of the cylinder passes through the through hole arranged on the top plate and is connected to the lifting plate, a plurality of guide shafts are connected to the lower surface of the lifting plate, each guide shaft is used in conjunction with a corresponding linear bearing, each linear bearing is passed through the top plate, the lower end of the scrubbing arm is fixed on the lifting plate, and when the cylinder is driven to move, the scrubbing arm can be lifted and lowered.

[0008] The beneficial effect of the scheme of the present application is that the above-mentioned high-speed railway contact line laser deicing vehicle can run on the rails by electric or fuel means, and remove the ice covering the high-speed railway contact network by emitting high-energy, high-power lasers to melt and remove ice, so as to ensure the fast and safe operation of high-speed railway trains. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A schematic structural diagram of a high-speed railway contact line laser deicing vehicle in an embodiment is shown.

[0010] Figure 2 The schematic diagram of the structure of the lifting mechanism in the embodiment is shown.

[0011] Figure markings: 1-vehicle body, 2-control system, 3-laser power supply, 4-laser, 5-beam expander, 6-reflector, 7-transparent optical glass window, 8-lifting mechanism, 801-bottom plate, 802-vertical plate, 803-top plate, 804-cylinder, 805-lifting plate, 806-guide shaft, 807-linear bearing, 9-scrubbing arm, 10-scrubbing head, 11-pantograph, 12-motor drive system, 13-fuel drive system. DETAILED DESCRIPTION

[0012] The specific implementation of the present application is further described below in conjunction with the accompanying drawings.

[0013] In the description of the present application, it should be understood that the terms "first", "second", etc. are used to distinguish similar objects, rather than to describe or indicate a specific order or sequence. The terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0014] like Figure 1 As shown, the high-speed railway contact line laser deicing vehicle involved in the present application includes a car body 1, and the car body 1 can run independently on the rails. A laser system is arranged in the car body 1, and the laser system includes a laser power supply 3, a laser 4, a beam expander 5 and a reflector 6, wherein the laser power supply 3 and the laser 4 are both connected to a control system 2, and the control system 2 is used to control whether the laser power supply 3 supplies power to the laser 4. The control system 2 is also used to control the output power of the laser 4, and the laser power supply 3 is connected to the laser 4. The pulsed laser emitted by the laser 4 is expanded by the beam expander 5 to form a laser beam with a preset divergence angle, which is reflected by the plane total reflection mirror 6 and passes through the transparent optical glass window 7 at the upper end of the car to irradiate the ice-covered contact line. The ice covering the contact line can be effectively removed by laser melting the ice and the impact of the pulsed laser on the ice.

[0015] The control system 2 is also used to control the lifting and lowering of the lifting mechanism 8 located on the carriage. The lifting mechanism 8 is connected to a scrubbing arm 9. The end of the scrubbing arm 9 is provided with a scrubbing head 10 for wiping the contact line. When the lifting mechanism 8 is controlled to rise, as the vehicle body 1 moves, the scrubbing head 10 can wipe the contact line irradiated by the laser. Specifically, Figure 2 As shown, the lifting mechanism 8 can adopt the following structure: comprising a bottom plate 801 arranged on the carriage, two vertical plates 802 are arranged opposite to each other on the bottom plate 801, the top ends of the two vertical plates 802 are connected to the top plate 803, a cylinder 804 controlled by the control system 2 is arranged on the lower surface of the top plate 803, the telescopic rod of the cylinder 804 passes through the through hole arranged on the top plate 803 and is connected to the lifting plate 805, a plurality of guide shafts 806 are connected to the lower surface of the lifting plate 805, each guide shaft 806 is used in conjunction with a corresponding linear bearing 807, each linear bearing 807 is penetrated on the top plate 803, the lower end of the scrubbing arm 9 is fixed on the lifting plate 805, and when the cylinder 804 is driven to move, the scrubbing arm 9 can be lifted and lowered. The scrubbing arm 9 can adopt a rod-shaped structure, and the scrubbing head 10 can be made of a flexible material, such as a sponge.

[0016] A motor drive system 12 and a fuel drive system 13 are also provided in the vehicle body 1. Both the motor drive system 12 and the fuel drive system 13 are connected to the control system 2. The motor drive system 12 is also connected to a pantograph 11. The pantograph 11 is located behind the scrubbing head 10. Current is collected from the scrubbed contact line through the pantograph 11 and transmitted to the motor drive system 12. The control system 2 is used to collect the current signal in the motor drive system 12, and compare the current signal with the current threshold preset in the control system 2 to determine the effect of laser deicing. When the current signal is less than the current threshold, it means that the deicing effect is not ideal, and the motor drive system 12 cannot provide power for the vehicle body 1 to move. The control system 2 sends a control signal to the fuel drive system 13, so that the fuel drive system 13 provides power for the vehicle body 1 to move. The motor drive system 12 and the fuel drive system 13 involved in the present application adopt the motor drive system 12 and the fuel drive system 13 in the prior art, and the specific structure and working principle are not elaborated here; the control system 2 can adopt an industrial computer and its related control circuits, as long as the relevant functions can be realized.

[0017] In the specific use process, the output power of the laser 4 is controlled by the control system 2. The high average power and high energy pulse laser emitted by the laser 4 is expanded by the beam expander 5 to form a laser beam with a preset divergence angle. After being reflected by the plane total reflection mirror 6, it passes through the transparent optical glass window 7 at the upper end of the car and irradiates the ice-covered contact line. The ice covering the contact line can be effectively removed by the laser melting the ice and the impact of the pulse laser on the ice. As the car body 1 moves forward, the scrubbing arm 9 located behind the laser beam rises under the control of the lifting mechanism 8, so that the scrubbing head 10 further cleans the remaining water and residual ice on the contact line after laser irradiation. The pantograph 11 located behind the scrubbing head 10 supplies power to the motor drive system 12 to drive the car body 1 forward. At the same time, the control system 2 can check the deicing effect. If the ideal effect is not achieved, the control system 2 controls the fuel drive system 13 to work to provide forward driving force for the car body 1.

[0018] The high-speed rail contact line laser deicing vehicle involved in this application can run on the rails by electric or fuel mode, and removes ice on the high-speed rail contact network by emitting high-energy, high-power lasers. Laser deicing mainly uses the characteristics of high power, good directionality, and concentrated energy of lasers, and can fully utilize the energy of lasers to melt ice. In addition, the effects of laser pulses and stress waves can better remove ice to ensure the fast and safe operation of high-speed rail trains. In addition, the use of laser deicing technology can achieve non-contact deicing, uninterrupted power deicing, and long-distance deicing, and will not cause damage to electrical equipment, reducing the labor intensity of deicing work and improving the efficiency of deicing.

[0019] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical solution and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A high-speed railway contact line laser deicing vehicle, characterized in that: The invention comprises a vehicle body, in which a laser system is arranged, wherein the laser system comprises a laser power supply, a laser, a beam expander and a reflector, wherein the laser power supply and the laser are both connected to a control system, wherein the control system is used to control whether the laser power supply supplies power to the laser, and the control system is also used to control the output power of the laser, wherein the laser power supply is connected to the laser, and the pulsed laser emitted by the laser is expanded by a beam expander to form a laser beam with a preset divergence angle, which is reflected by a reflector and passes through a transparent optical glass window at the upper end of the vehicle body to irradiate the ice-covered contact line for de-icing; the control system is also used to control the lifting and lowering of a lifting mechanism located on the vehicle body, wherein the lifting mechanism is connected to a scrubbing arm, and a scrubbing head for wiping the contact line is provided at the end of the scrubbing arm, and when the lifting mechanism is controlled to rise, as the vehicle body moves , the scrubbing head can wipe the contact line after being irradiated by the laser; a motor drive system and a fuel drive system are also provided in the vehicle body, and the motor drive system and the fuel drive system are both connected to the control system, and the motor drive system is also connected to the pantograph, and the pantograph is located behind the scrubbing head, and the current is collected from the scrubbed contact line through the pantograph and transmitted to the motor drive system, and the control system is used to collect the current signal in the motor drive system, and compare the current signal with the current threshold preset in the control system to determine the effect of laser deicing, when the current signal is less than the current threshold, the motor drive system is no longer used to provide power for the movement of the vehicle body, and the control system sends a control signal to the fuel drive system, so that the fuel drive system provides power for the movement of the vehicle body.

2. The high-speed railway contact line laser deicing vehicle according to claim 1 is characterized in that: The lifting mechanism adopts the following structure: it includes a bottom plate arranged on the carriage, two vertical plates are arranged opposite to each other on the bottom plate, the top ends of the two vertical plates are connected to the top plate, a cylinder controlled by the control system is arranged on the lower surface of the top plate, the telescopic rod of the cylinder passes through the through hole arranged on the top plate and is connected to the lifting plate, a plurality of guide shafts are connected to the lower surface of the lifting plate, each guide shaft is used in conjunction with a corresponding linear bearing, each linear bearing is passed through the top plate, the lower end of the scrubbing arm is fixed on the lifting plate, and when the cylinder is driven to move, the scrubbing arm can be lifted and lowered.

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