Apparatus for quick coupling between locomotive and urban rail vehicle and for implementing synchronous braking, and rescue method

Abstract

An apparatus for quick coupling between a locomotive and an urban rail vehicle and for implementing synchronous braking, and a rescue method. The apparatus comprises: a rescue instruction button, a level conversion apparatus, and a fully automatic coupler. The rescue instruction button is mounted on an urban rail vehicle, and is used to start up power supply by the urban rail vehicle to the level conversion apparatus, while controlling an electro-pneumatic braking system of the urban rail vehicle to enter a rescue mode. The level conversion apparatus is mounted on a locomotive, and is used to convert a pressure reduction amount of a locomotive train line into a braking level signal of an analog amount or a digital amount, and transmit said signal to the electro-pneumatic braking system of the urban rail vehicle, to implement a synchronous braking function. The fully automatic coupler is separately mounted on the locomotive and the urban rail vehicle, and is used for automatic coupling of the locomotive to the urban rail vehicle. According to the described apparatus and the rescue method, personnel do not need to leave the train to perform operations such as coupling a coupler, temporary wiring, and installing a train line, thus improving the efficiency of quick coupling between the locomotive and the urban rail vehicle, implementing the synchronous braking of the locomotive and the urban rail vehicle, and increasing the safety and timeliness of a rescue process.

Description

A locomotive quickly coupled to an urban rail vehicle and a synchronous braking device and a rescue method Technical Field

[0001] The present invention relates to the technical field of rapid rescue of rail transit vehicles, and in particular to a device and a rescue method for rapidly coupling a locomotive to an urban rail vehicle and achieving synchronous braking. Background Art

[0002] When an urban rail vehicle powered by a contact network or third rail is in passenger operation, if the external power supply of the urban rail vehicle fails or the traction system of the urban rail vehicle fails, it will not be able to continue driving. At this time, a locomotive needs to be coupled to the urban rail vehicle. Professional technicians will get off the vehicle to connect the coupler between the locomotive and the urban rail vehicle. After confirming that the coupling is successful, the air brake system of the urban rail vehicle is manually isolated. The locomotive is responsible for traction and braking. The urban rail vehicle completely enters a state of no power and no braking. The locomotive then tows the urban rail vehicle to a safe area and organizes passengers to get off the vehicle.

[0003] Existing coupling schemes have the following shortcomings: First, an operator is required to operate the coupler between the diesel locomotive and the urban rail vehicle, which is dangerous for lines powered by catenary power, especially third-rail power supply. In addition, this scheme requires operators to operate the coupler off the vehicle, which is time-consuming and affects the timeliness of rescue. Second, the urban rail vehicle needs to enter a completely unbraked state, and the braking function of the locomotive and the urban rail vehicle is completely borne by the locomotive. Therefore, the braking distance is long, affecting safety. At the same time, in order to ensure sufficient braking distance, the locomotive needs to limit its speed to a relatively low level after rescuing the urban rail vehicle, which in turn affects the timeliness of rescue.

[0004] In the prior art, in order to realize the fire-free return of the locomotive to the urban rail vehicle, a lot of preparation work is usually required. First, a special return locomotive is required to be connected to the urban rail vehicle and a DC110V power supply is provided to power the electric-pneumatic braking system and the gear conversion device of the urban rail vehicle. In addition, temporary wiring is required, and a pipeline of the train pipe running through the entire train is temporarily laid. The return locomotive is temporarily connected to the main air pipeline of the urban rail vehicle, and the locomotive supplies air to the air equipment of the urban rail vehicle. In this way, the synchronous braking function of the locomotive and the urban rail vehicle can be realized. However, this solution is cumbersome to prepare and takes a long time. For example:

[0005] Prior art 1: The height between the locomotive coupler center and the rail surface is 880mm, while the height between the urban rail vehicle coupler center and the rail surface is 660mm, making direct connection impossible. Normally, a set of transition couplers needs to be installed on the diesel locomotive coupler in advance, and then the urban rail vehicle coupler is connected to the transition coupler. This only allows for mechanical connection between the locomotive and the urban rail vehicle, and does not allow for automatic connection of the air and electrical circuits.

[0006] From the above technologies, it can be seen that the existing solutions have the following shortcomings: First, it is impossible to achieve automatic coupling of the mechanical structure, and personnel need to get off the vehicle for manual operation, which is unsafe and inefficient; second, after the coupling is completed, the air brake of the urban rail vehicle needs to be manually isolated, which is time-consuming and inefficient; third, during the locomotive rescue process of the urban rail vehicle, the urban rail vehicle cannot apply the brakes, the braking distance is short, and it needs to be limited to a relatively low speed, which is inefficient and unsafe.

[0007] Prior Art 2: The locomotive uses an automatic air brake system with a train duct and a main air duct. By operating the driver's controller, exhaust air reduces the pressure in the train duct, and after a series of pneumatic valves are switched, air braking is applied. Urban rail vehicles use a direct-through electro-pneumatic brake system that controls solenoid valves to apply air brakes after receiving electrical or network braking commands. In the prior art, achieving a fire-free return of urban rail vehicles typically requires extensive preparation. First, a dedicated return locomotive is coupled to the urban rail vehicle and provides a DC110V power supply to power the urban rail vehicle's electro-pneumatic brake system and gear shifting equipment. Temporary wiring and the laying of piping for the train duct throughout the entire train are also required. The air supply system of an urban rail vehicle is generally powered by AC380V. Without external power, the air supply system will cease to operate. If the stored air pressure in the air supply system drops to a certain level, electro-pneumatic braking cannot be applied. Therefore, it is necessary to temporarily connect the return locomotive to the urban rail vehicle's main air duct, allowing the locomotive to supply air to the urban rail vehicle's ventilation equipment. The gear shifter converts the reduced pressure in the locomotive train pipe into an analog or digital electrical signal, which is then transmitted to the urban rail vehicle's electro-pneumatic braking system, enabling synchronized braking. Both the urban rail vehicle's control circuits and the gear shifter are normally powered by 110V DC. Locomotive control circuits typically use 74V DC, which cannot directly power the gear shifter. Only when the locomotive user specifically requires this power supply, 110V DC is used.

[0008] From the above, it can be seen that the existing solutions for achieving synchronous braking of locomotives and urban rail vehicles have the following disadvantages: a lot of time is required to temporarily lay lines and pipelines, and the efficiency is very low.

[0009] Summary of the Invention

[0010] To address the aforementioned technical issues surrounding the inability to quickly couple a locomotive to a rail vehicle and achieve synchronous braking, a device and rescue method for quickly coupling a locomotive to a rail vehicle and achieving synchronous braking are provided. This device eliminates the need for personnel to disembark to couple the coupler, perform temporary wiring, or lay train pipes. This improves the efficiency of quickly coupling a locomotive to a rail vehicle, achieves synchronous braking of the locomotive and rail vehicle, and enhances the safety and timeliness of the rescue process.

[0011] The technical means adopted in the present invention are as follows:

[0012] A device for quickly coupling a locomotive to an urban rail vehicle and achieving synchronous braking comprises: a rescue command button, a level conversion device, and a fully automatic coupler, wherein:

[0013] The rescue command button is installed on the urban rail vehicle and is used to turn on the power supply to the level conversion device of the urban rail vehicle and control the electric pneumatic braking system of the urban rail vehicle to enter the rescue mode;

[0014] The gear shift device is installed on the locomotive and is used to convert the decompression of the locomotive train pipe into an analog or digital brake gear shift signal and transmit it to the electric pneumatic brake system of the urban rail vehicle to achieve a synchronous braking function;

[0015] The fully automatic coupler is respectively installed on the locomotive and the urban rail vehicle and is used for automatic coupling between the locomotive and the urban rail vehicle.

[0016] Furthermore, the rescue command button connects the DC110V power supply line of the battery to the rescue command line point of the electro-pneumatic braking system and the corresponding point of the electrical connector of the fully automatic coupler.

[0017] Furthermore, the level conversion device is connected to the train pipe of the locomotive through the air path collection port.

[0018] Furthermore, the gear conversion device includes a DC110V power supply line and a gear signal output line, which are respectively connected to corresponding points of the electrical connector of the fully automatic coupler.

[0019] Furthermore, the fully automatic coupler realizes automatic coupling between the locomotive and the urban rail vehicle. Automatic coupling includes: mechanical coupling, electrical coupling, and pneumatic coupling, wherein:

[0020] The circuit connection includes the DC110V power supply from the urban rail vehicle to the gear shift device, and the analog or digital braking gear shift signal transmitted by the gear shift device to the urban rail vehicle;

[0021] The air circuit connection includes the automatic connection of the total air of the locomotive and the urban rail vehicle.

[0022] Furthermore, the automatic connection of the main air of the locomotive and the urban rail vehicle includes: connecting the main air duct of the locomotive with the main air interface of the locomotive coupler; connecting the main air duct of the urban rail vehicle with the main air interface of the urban rail vehicle coupler.

[0023] The present invention also provides a rescue method based on the above-mentioned locomotive rapid coupling to an urban rail vehicle and implementation of a synchronous braking device, comprising:

[0024] S1. Install fully automatic couplers with the same structure on both locomotives and urban rail vehicles;

[0025] S2. Install a level conversion device on the locomotive and connect the locomotive's train pipe to the air path collection port of the level conversion device;

[0026] S3. Connect the DC110V power supply line and the output line of the gear shift device to the corresponding points of the electrical connector of the fully automatic coupler installed on the locomotive.

[0027] S4. Perform wiring processing on the urban rail vehicle, connecting the DC 110V power supply line of the battery to the rescue command line point of the electro-pneumatic brake system and the corresponding point of the electrical connector of the fully automatic coupler through the rescue button;

[0028] S5. Connect the main air duct of the locomotive to the main air interface of the locomotive coupler, and connect the main air duct of the urban rail vehicle to the main air interface of the urban rail vehicle coupler;

[0029] S6. The driver drives the locomotive at a low speed to couple with the urban rail vehicle, achieving automatic connection of the mechanical, electrical, and pneumatic circuits;

[0030] S7. Press the rescue button installed on the urban rail vehicle. The DC110V air control circuit of the urban rail vehicle supplies power to the gear shifting device through the circuit of the fully automatic coupler. At the same time, the electric-pneumatic braking system of the urban rail vehicle enters the rescue mode, responds to the braking command issued by the gear shifting device, and realizes the synchronous braking function with the locomotive.

[0031] S8. The driver drives the locomotive to tow the urban rail vehicle to the designated location, and the rescue is completed.

[0032] Compared with the prior art, the present invention has the following advantages:

[0033] 1. The present invention provides a device for rapidly coupling a locomotive to a rail vehicle and realizing synchronous braking. The rescue vehicle and the rescued vehicle use air brake systems with two different control principles. The entire solution, from the beginning of coupling the locomotive and the rail vehicle to the completion of the rescue, is safe, economical, and efficient.

[0034] 2. The locomotive provided by the present invention can be quickly coupled to a rail vehicle and achieve synchronous braking, thus avoiding potential safety hazards caused by personnel getting off the vehicle during the coupling process. Furthermore, after the locomotive and the rail vehicle collide, the mechanical structure, circuit, and air circuit are automatically coupled. By pressing the rescue button installed on the rail vehicle, the synchronous braking function of the rail vehicle and the locomotive can be achieved, which is highly efficient.

[0035] 3. The locomotive provided by the present invention can be quickly coupled to a rail vehicle and realize synchronous braking. When the locomotive is pulling the rail vehicle, the rail vehicle can apply the braking function synchronously, and the braking distance is short. Therefore, the driving speed is high, the rescue time is short, and the safety is good.

[0036] 4. The invention provides a device for rapidly coupling a locomotive to an urban rail vehicle and realizing synchronous braking. For diesel locomotives, this function can be achieved with minor modifications to the mature vehicle main air duct, train pipe, and coupler mounting structure, resulting in a highly economical solution.

[0037] Based on the above reasons, the present invention can be widely promoted in the fields of rapid rescue of rail transit vehicles and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0039] FIG1 is a schematic diagram of a vehicle coupling according to the present invention.

[0040] FIG2 is a flow chart of the rescue process of the present invention. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0042] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0043] As shown in FIG1 , the present invention provides a device for quickly coupling a locomotive to an urban rail vehicle and achieving synchronous braking, comprising: a rescue command button, a level conversion device, and a fully automatic coupler, wherein:

[0044] The rescue command button is installed on the urban rail vehicle and is used to turn on the power supply to the level conversion device of the urban rail vehicle and control the electric pneumatic braking system of the urban rail vehicle to enter the rescue mode;

[0045] The gear shift device is installed on the locomotive and is used to convert the decompression of the locomotive train pipe into an analog or digital brake gear shift signal and transmit it to the electric pneumatic brake system of the urban rail vehicle to achieve a synchronous braking function;

[0046] The fully automatic coupler is respectively installed on the locomotive and the urban rail vehicle and is used for automatic coupling between the locomotive and the urban rail vehicle.

[0047] In specific implementation, as a preferred embodiment of the present invention, the rescue command button connects the DC110V power supply line of the battery to the rescue command line point of the electro-pneumatic braking system and the corresponding point of the electrical connector of the fully automatic coupler.

[0048] In specific implementation, as a preferred embodiment of the present invention, the level conversion device is connected to the train pipe of the locomotive through the air path collection port.

[0049] In specific implementation, as a preferred embodiment of the present invention, the level conversion device includes a DC110V power supply line and a level signal output line, which are respectively connected to corresponding points of the electrical connector of the full-automatic coupler.

[0050] In specific implementation, as a preferred embodiment of the present invention, the fully automatic coupler realizes automatic coupling between the locomotive and the urban rail vehicle. The automatic coupling includes: mechanical coupling, circuit coupling, and pneumatic coupling, wherein:

[0051] The circuit connection includes the DC110V power supply from the urban rail vehicle to the gear shift device, and the analog or digital braking gear shift signal transmitted by the gear shift device to the urban rail vehicle;

[0052] The air circuit connection includes the automatic connection of the total air of the locomotive and the urban rail vehicle.

[0053] In specific implementation, as a preferred embodiment of the present invention, the automatic connection of the total air of the locomotive and the urban rail vehicle includes: the total air duct of the locomotive is connected to the total air interface of the locomotive coupler; the total air duct of the urban rail vehicle is connected to the total air interface of the urban rail vehicle coupler.

[0054] As shown in FIG2 , the present invention further provides a rescue method based on the above-mentioned locomotive rapid coupling to an urban rail vehicle and implementation of a synchronous braking device, comprising:

[0055] S1. Install fully automatic couplers with the same structure on both locomotives and urban rail vehicles;

[0056] S2. Install a level conversion device on the locomotive and connect the locomotive's train pipe to the air path collection port of the level conversion device;

[0057] S3. Connect the DC110V power supply line and the output line of the gear shift device to the corresponding points of the electrical connector of the fully automatic coupler installed on the locomotive.

[0058] S4. Perform wiring processing on the urban rail vehicle, connecting the DC 110V power supply line of the battery to the rescue command line point of the electro-pneumatic brake system and the corresponding point of the electrical connector of the fully automatic coupler through the rescue button;

[0059] S5. Connect the main air duct of the locomotive to the main air interface of the locomotive coupler, and connect the main air duct of the urban rail vehicle to the main air interface of the urban rail vehicle coupler;

[0060] S6. The driver drives the locomotive at a low speed to couple with the urban rail vehicle, achieving automatic connection of the mechanical, electrical, and pneumatic circuits;

[0061] S7. Press the rescue button installed on the urban rail vehicle. The DC110V air control circuit of the urban rail vehicle supplies power to the gear shifting device through the circuit of the fully automatic coupler. At the same time, the electric-pneumatic braking system of the urban rail vehicle enters the rescue mode, responds to the braking command issued by the gear shifting device, and realizes the synchronous braking function with the locomotive.

[0062] S8. The driver drives the locomotive to tow the urban rail vehicle to the designated location, and the rescue is completed.

[0063] In specific implementation, as a preferred embodiment of the present invention, the rescue vehicle is a locomotive, and the rescued vehicle is an urban rail vehicle.

[0064] In specific implementation, as a preferred embodiment of the present invention, the power supply of the level conversion device is completely provided by the rescued vehicle through the coupler.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for quickly coupling a locomotive to a rail vehicle and realizing synchronous braking, characterized in that: include: Rescue command button, level conversion device, fully automatic coupler, including: The rescue command button is installed on the urban rail vehicle and is used to turn on the power supply of the urban rail vehicle to the level conversion device and control the electric pneumatic braking system of the urban rail vehicle to enter the rescue mode; The gear conversion device is installed on the locomotive and is used to convert the decompression amount of the locomotive train pipe into an analog or digital brake gear signal, and transmit it to the electric pneumatic brake system of the urban rail vehicle to realize the synchronous braking function; The fully automatic coupler is installed on a locomotive and a rail vehicle respectively, and is used for automatic coupling between the locomotive and the rail vehicle.

2. The device for rapidly coupling a locomotive to a rail vehicle and realizing synchronous braking according to claim 1, characterized in that: The rescue command button connects the battery DC110V power supply line to the rescue command line point of the electro-pneumatic brake system and the corresponding point of the electrical connector of the full-automatic coupler.

3. The device for rapidly coupling a locomotive to a rail vehicle and realizing synchronous braking according to claim 1, characterized in that: The level conversion device is connected to the train pipe of the locomotive through the gas path collection port.

4. The device for rapidly coupling a locomotive to a rail vehicle and realizing synchronous braking according to claim 1, characterized in that: The level conversion device includes a DC110V power supply line and a level signal output line, which are respectively connected to corresponding points of the electrical connector of the full-automatic coupler.

5. The device for rapidly coupling a locomotive to a rail vehicle and realizing synchronous braking according to claim 1, characterized in that: The fully automatic coupler realizes the automatic coupling between the locomotive and the urban rail vehicle. The automatic coupling includes: mechanical coupling, circuit coupling, and pneumatic coupling, wherein: The circuit connection includes a DC110V power supply from the urban rail vehicle to the gear shift device, and an analog or digital brake gear signal transmitted from the gear shift device to the urban rail vehicle; The air circuit connection includes automatic connection of the total air of the locomotive and the urban rail vehicle.

6. The device for rapidly coupling a locomotive to a rail vehicle and realizing synchronous braking according to claim 5, characterized in that: The automatic connection of the total air of the locomotive and the urban rail vehicle comprises: the total air duct of the locomotive is connected to the total air interface of the locomotive coupler; the total air duct of the urban rail vehicle is connected to the total air interface of the urban rail vehicle coupler.

7. A rescue method based on the locomotive rapid coupling with the urban rail vehicle and realizing synchronous braking device according to any one of claims 1 to 6, characterized in that: include: S1. Install fully automatic couplers with the same structure on both locomotives and urban rail vehicles; S2. Install a level conversion device on the locomotive, and connect the train pipe of the locomotive to the gas path collection port of the level conversion device; S3. Connect the level conversion device to the corresponding points of the electrical connector of the fully automatic coupler installed on the locomotive by connecting the DC110V power supply line and the output line of the level signal of the device to the corresponding points of the electrical connector of the fully automatic coupler installed on the locomotive; S4. Perform wiring processing on the urban rail vehicle, and connect the DC110V power supply line of the battery to the rescue command line point of the electro-pneumatic brake system and the corresponding point of the electrical connector of the fully automatic coupler through the rescue button; S5. Connect the main air duct of the locomotive to the main air interface of the locomotive coupler, and connect the main air duct of the urban rail vehicle to the main air interface of the urban rail vehicle coupler; S6. The driver drives the locomotive at a low speed to couple with the urban rail vehicle to achieve automatic connection of the mechanical, electrical and gas circuits; S7, press the rescue button installed on the urban rail vehicle, the urban rail vehicle's battery power supply air control circuit DC110V supplies power to the level conversion device through the line of the full-automatic coupler, and at the same time the urban rail vehicle's electric-pneumatic braking system enters the rescue mode, responds to the braking command issued by the level conversion device, and realizes the synchronous braking function with the locomotive; S8. The driver drives the locomotive to tow the urban rail vehicle to the designated location, and the rescue is completed.

8. The rescue method according to claim 7, characterized in that: The rescue vehicle is a locomotive and the rescued vehicle is an urban rail vehicle.

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