Protection system and interlocking system for train

Abstract

The utility model relates to a protection system and an interlocking system for a train. The protection system (100) comprises: a track beam (10); the telescopic protection device (20) is arranged in the track beam (10) and used for at least partially extending out of the track beam (10) from the interior of the track beam (10) during extension so as to prevent wheels (30) of the train from passing through the track beam (10) and contained in the track beam (10) during retraction. Thus, under necessary conditions, hardware facilities on the track beam can be used for protection to stop the train from advancing, and therefore the running safety of the train is enhanced.

Description

Technical Field

[0001] The present disclosure relates to the field of rail vehicle facilities, and in particular, to a protection system and an interlocking system for a train. Background Art

[0002] The monorail belongs to the medium-capacity rail transit system, which is characterized by strong adaptability, low noise, small turning radius, strong climbing ability, and can better adapt to complex terrain and landforms. In addition, the monorail requires less investment in construction, has a short construction period, is intelligent and environmentally friendly, and has strong applicability. The width of its viaduct piers saves space compared to other elevated rail transits, and the piers can be erected in the middle of the urban road or in the green belts on both sides of the road. Therefore, it occupies a small area, has less obstruction, is flexible in line selection, and has little interference with the existing urban road traffic.

[0003] The safe operation of monorail trains is inseparable from the reliable control of the interlocking system. In some emergency situations, the train needs to be stopped as soon as possible. If the train cannot be stopped in time, there will be huge safety hazards. Utility Model Content

[0004] The purpose of the present disclosure is to provide a protection system and an interlocking system for a straddle-type monorail train, which can enhance the safety of train operation.

[0005] In order to achieve the above object, the present disclosure provides a protection system for a train, the protection system comprising:

[0006] Track beams;

[0007] A retractable protective device is arranged inside the track beam, and is used to at least partially extend from the inside of the track beam to the outside of the track beam when extended to block the wheels of the train from passing through the track beam, and is accommodated inside the track beam when retracted.

[0008] Optionally, the retractable protective device comprises:

[0009] A protective component, used for extending from and retracting into the track beam;

[0010] The driving component is connected to the protection component and is used for extending and retracting to drive the protection component.

[0011] Optionally, the driving component is a hydraulic driving device.

[0012] Optionally, a hydraulic buffer is provided in the hydraulic drive device.

[0013] Optionally, the protective component is used to extend and retract from the running surface of the track beam; and / or,

[0014] The guard member is adapted to be extended and retracted from one or both sides of the track beam.

[0015] Optionally, the height of the protective component extending from the track beam increases along the traveling direction of the monorail train.

[0016] Optionally, the protective component has a contact surface for contacting the wheel, and the contact surface is a plane or a curved surface.

[0017] Optionally, the protection system further comprises:

[0018] Motor;

[0019] The transmission component is connected to the motor and the driving component respectively, and is used for transmitting the energy output by the motor to the driving component so that the driving component can be extended and retracted.

[0020] Optionally, the transmission component includes at least one of the following: a coupling, a gear, a fluid coupling and a hydraulic motor.

[0021] The present disclosure also provides an interlocking system for a train, comprising the protection system provided by the present disclosure.

[0022] Through the above technical solution, a retractable protective device is arranged inside the track beam. When the retractable protective device is extended, it at least partially extends from the inside of the track beam to the outside of the track beam to block the wheels of the train from passing through the track beam. When the retractable protective device is retracted, it is accommodated inside the track beam. In this way, when necessary, the hardware facilities on the track beam can be used for protection to block the movement of the train, thereby enhancing the safety of train operation.

[0023] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0025] Figure 1 It is a structural block diagram of a protection system for a train provided by an exemplary embodiment.

[0026] Figure 2a and Figure 2b It is a top view schematic diagram of a retractable protective device provided by an exemplary embodiment.

[0027] Figure 3 is a top view schematically showing a retractable protective device provided by another exemplary embodiment.

[0028] Figure 4a and Figure 4b is a schematic side view of a retractable protective device provided by an exemplary embodiment.

[0029] Figure 5a and Figure 5b is a schematic side view of a retractable protective device provided by another exemplary embodiment.

[0030] Description of Reference Numerals

[0031] 100 Protection system 10 Track beam 20 Retractable protection device

[0032] 30 Wheels 21 Protective components 22 Driving components DETAILED DESCRIPTION

[0033] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0034] In the present disclosure, unless otherwise specified, directional words such as “up, down, left, right, side” are generally used to describe the direction of travel of a train.

[0035] The disclosed solution can be applied to straddle-type monorail trains. When the train is in the Automatic Train Protection (ATP) protection and Automatic Train Operation (ATO) operation mode, the system can provide movement authorization, speed limit, door protection, precise parking and other safety protections for the train. For trains running in unrestricted manual driving or restricted manual driving mode, the driver should control the train according to the driving instructions of the central dispatcher and the light color of the signal installed on the trackside to instruct the driver to drive.

[0036] However, there is currently a lack of safety protection for the following scenarios: when a train stops temporarily at a platform or section, the signal ahead is not open, and there are no safe driving conditions ahead for the train. However, if a manually driven train rushes into the signal at this time, and the train enters a section not protected by the system, there will be a greater driving safety risk.

[0037] In view of the lack of driving protection in the above scenarios, the present disclosure provides a protection system and an interlocking system for trains.

[0038] Figure 1 FIG. 1 is a structural block diagram of a protection system for a train provided by an exemplary embodiment. Figure 1 As shown, the guard system 100 includes a track beam 10 and a retractable guard device 20 .

[0039] The retractable guard 20 is disposed inside the track beam 10 , and is used to at least partially extend from the inside of the track beam 10 to the outside of the track beam 10 when extended to block the wheels of the train from passing through the track beam, and to be accommodated inside the track beam 10 when retracted.

[0040] A hole may be dug in advance on the track beam 10, and a retractable guard 20 may be arranged therein. When the retractable guard 20 is fully retracted, it is in a non-protective position and does not affect the wheels passing through the track beam. When the retractable guard 20 is extended outside the track beam, it is in the track of the wheels. When the retractable guard 20 is at least partially extended outside the track beam, it is in a protective position. When the retractable guard 20 is in the protective position, it can block the wheels from passing through the track beam.

[0041] Through the above technical solution, a retractable protective device is arranged inside the track beam. When the retractable protective device is extended, it at least partially extends from the inside of the track beam to the outside of the track beam to block the wheels of the train from passing through the track beam. When the retractable protective device is retracted, it is accommodated inside the track beam. In this way, when necessary, the hardware facilities on the track beam can be used for protection to block the movement of the train, thereby enhancing the safety of train operation.

[0042] In one embodiment, the retractable guard device 20 may include a guard component and a driving component.

[0043] The protection component is used to extend from the inside of the track beam and retract into the inside of the track beam 10. The driving component is connected to the protection component and is used to extend and retract to drive the protection component.

[0044] The protection component can be fixedly connected to the movable part in the driving component. When the movable part in the driving component moves, the protection component is driven to extend from the inside of the track beam, or to retract into the inside of the track beam.

[0045] After the protective component stretches out from the track beam inside, when the retractable protective device 20 is in the protective position, it is possible to collide with the wheel of the traveling train. In order to achieve the purpose of effectively blocking the wheel, the protective component can be made of materials such as iron, copper, alloy, rubber, etc.

[0046] The driving component may for example comprise a spring, which is connected to the protection component. The protection component may be ejected by releasing the elastic potential energy of the spring, and the protection component may be retracted by compressing the spring.

[0047] In this embodiment, the retractable protective device is divided into a driving component and a protective component capable of blocking the wheel. In this way, the retractable protective device can be made of different materials according to different internal functions, and the design is more reasonable.

[0048] In another embodiment, the driving component may be a hydraulic driving device, which converts hydraulic energy into mechanical energy for driving, and has a simple structure and high working reliability.

[0049] When a wheel collides with a protective component, the protective component may be subjected to a large impact force due to the high wheel speed or the large vehicle mass, making the protective component easily damaged, and even the retractable protective device may be subjected to a large impact.

[0050] In another embodiment, a hydraulic buffer is provided in the hydraulic drive device, so that the hydraulic drive device has both a retractable function and a buffering function. The hydraulic buffer is used to buffer when a force applied by the protective component and directed toward the inner direction of the retracted track beam is applied.

[0051] In this embodiment, the hydraulic buffer principle is adopted, and the flow speed of the buffer is controlled to provide support force for buffering. When the train just contacts the protective component, the protective component applies resistance to slowly slow down the train. After the speed of the train decreases, the resistance gradually increases, forcing the train to stop. The "soft collision" mode of the hydraulic buffer can reduce the degree of damage to the train during the collision, reduce the cost and complexity of train maintenance, and increase the service life of the protection system.

[0052] In yet another embodiment, the guard member is adapted to extend and retract from a running surface of the track beam; and / or, the guard member is adapted to extend and retract from one or both sides of the track beam.

[0053] That is, multiple retractable protective devices can be provided in the same section of track beam. The driving component can be retracted in a direction perpendicular to the running surface of the track beam, and the protective component extends and retracts from the running surface of the track beam to block the wheels on the running surface of the track beam; the driving component can also be retracted in a direction perpendicular to the side of the track beam, and the protective component extends and retracts from one or two sides of the track beam to block the wheels on the side of the track beam. When multiple retractable protective devices are provided, multiple wheels of the train can be blocked at the same time, with better protection effect and higher train safety.

[0054] Figure 2a and Figure 2b FIG. 1 is a top view of a retractable protective device provided by an exemplary embodiment. Figure 2a As shown in FIG. 1 , the protective component 21 and the driving component 22 are indicated by dashed lines as being inside the track beam 10 and by solid lines as being outside the track beam 10. In these top views, there are wheels 30 on both the left and right sides of the track beam 10. The wheels on the running surface of the track beam 10 are not Figure 2a and Figure 2b The arrow direction is the direction of the train's travel. Figure 2aIn the figure, the protection component 21 and the driving component 22 are both located inside the track beam 10, which is a non-protection position. Figure 2b In the figure, the protective component 21 is located outside the track beam 10 and is in a protective position.

[0055] Figure 2a and Figure 2b In the embodiment, only the wheels on one side of the track beam 10 are blocked. Figure 3 is a top view schematically showing a retractable protective device provided by another exemplary embodiment. Figure 3 In the embodiment, two retractable protective devices are provided, both of which are in the protective position, and the wheels on the left and right sides of the track beam 10 are blocked at the same time. Figure 3 Shown in.

[0056] Figure 4a and Figure 4b FIG. 1 is a schematic side view of a retractable protective device provided by an exemplary embodiment. In this side view, the wheel 30 is on the running surface of the track beam. The wheel on the side of the track beam 10 is not Figure 4a and Figure 4b The arrow direction is the direction of the train's travel. Figure 4a and Figure 4b Respectively indicate that the retractable protective device is in the non-protective position and the protective position.

[0057] In another embodiment, the height of the guard member extending out of the track beam increases along the traveling direction of the train. That is, an upward slope is formed on the contact surface between the wheel and the guard member, so that when the wheel collides with the guard member, a certain buffering effect is achieved due to such a shape.

[0058] The protection component 21 has a contact surface for contacting the wheel, and the contact surface may be a flat surface or a curved surface.

[0059] exist Figure 2a-Figure 4b In the embodiment, the contact surface of the protective component is a plane, and for the moving wheel, the contact surface is a plane slope. Figure 5a and Figure 5b FIG. 1 is a side view of a retractable protective device provided by another exemplary embodiment. The wheel 30 is located on the running surface of the track beam 10. The wheel on the side of the track beam 10 is not Figure 5a and Figure 5b In Figure 5a and Figure 5b In the embodiment of the present invention, the contact surface is a curved surface. Figure 5a and Figure 5b In the cross section, the contact surface is formed into a curve. For the moving wheel, the contact surface is a curved slope. The curve can have the same curvature or different curvatures in sections. Figure 5a and Figure 5b As shown, in the traveling direction of the train, the curvature of the curve increases, which can gradually increase the resistance when the wheels collide, and has a certain buffering effect.

[0060] In yet another embodiment, the protection system 100 further includes a motor and a transmission component.

[0061] The transmission component is connected to the motor and the driving component 22 respectively, and is used to transmit the energy output by the motor to the driving component 22, so that the driving component 22 can be extended and retracted.

[0062] Taking the driving component 22 as a hydraulic driving device as an example, the motor drives the rotor of the hydraulic pump to rotate through the shaft, the oil suction port of the hydraulic pump is connected to the oil tank, and the oil pressure port of the hydraulic pump is connected to the hydraulic cylinder. When the motor is started, the hydraulic pump starts to work, sucks the hydraulic oil from the oil tank, and delivers it to the hydraulic cylinder through the pressure oil pipe. After the hydraulic oil enters the hydraulic cylinder, the piston is acted upon by the liquid pressure to generate thrust, thereby achieving linear motion.

[0063] As the power source of the hydraulic drive device, the motor converts hydraulic energy into mechanical energy by driving the hydraulic drive device, thereby driving the hydraulic cylinder to generate thrust. The motor drives the hydraulic cylinder efficiently, reliably and flexibly.

[0064] In yet another embodiment, the transmission component includes at least one of the following: a coupling, a gear, a fluid coupling, and a hydraulic motor.

[0065] The hydraulic pump and the motor can be directly connected with a coupling, which has a simple structure and compact layout and can achieve higher transmission efficiency.

[0066] The hydraulic pump and the motor can be connected via gear transmission. By using gears of different sizes, the transmission ratio between the motor and the hydraulic drive device can be adjusted, and the transmission is smooth and efficient.

[0067] The hydraulic pump and the motor can be connected through a hydraulic coupling. The hydraulic coupling transmits torque through liquid to achieve transmission between the motor and the hydraulic drive device. It not only has smooth transmission and high transmission efficiency, but also can achieve forward and reverse rotation and multi-speed adjustment.

[0068] The hydraulic pump and the electric motor can be connected via a hydraulic motor. The hydraulic motor enables precise control and high load capacity.

[0069] The following are some application scenarios of the protection system disclosed herein.

[0070] When the train meets the protection conditions, the retractable protective device is controlled to extend; when the train does not meet the protection conditions, the retractable protective device is controlled to retract.

[0071] A controller may be provided to be connected to the retractable protective device, and is used to control the retractable protective device to extend when the train meets the protective conditions, and to control the retractable protective device to retract when the train does not meet the protective conditions.

[0072] Protection conditions may include: the train is in a stopped state and has not been cleared for entry; or the train is in a stopped state and the switch position is incorrect.

[0073] For example, after a straddle-type monorail train stops steadily and accurately at a stop point in a track section, the retractable protective device can be extended. The contact surface between the protective component and the wheel can form a certain slope. When the interlocking check shows that the switch position is correct and the signal system handles the approach ahead of the train (i.e. the signal ahead of the train opens the permission signal), the controller sends a retracting command to the retractable protective device, and the retractable protective device retracts to the non-protective position, and the protective component retracts into the track beam, which can solve the train operation safety risks that may be caused by human factors.

[0074] The protection system for trains disclosed in the present invention can be incorporated into the management of interlocking, that is, the position and protection status of the retractable protection device are controlled by the interlocking signal, the operation command of the controller is controlled by the interlocking, and the protection component can provide a status acquisition node for interlocking acquisition. This solution has little impact on the software and hardware of the signal system, and the existing control board and acquisition board can be reused. For the software processing logic of the interlocking, only the drive command of the retractable protection device needs to be added. The safety protection of mistaken departure at a red light can be achieved with a small amount of modification to the signal system.

[0075] The following are steps for applying a protection system provided by an embodiment:

[0076] 1. The interlocking subsystem handles the route ahead of the train based on the route handling command of the Automatic Train Supervision System (ATS) or the information of the train occupying the route trigger section.

[0077] 2. The vehicle on-board controller (VOBC) controls the train to enter the platform or parking areas such as the return track;

[0078] 3. When the interlocking subsystem receives the train stopping information from the VOBC subsystem, it queries the device ID of the retractable protective device at the current train position, and the software issues an instruction for the retractable protective device to move to the protection position. The board device receives the interlocking drive command and continuously outputs a 24V control voltage to the controller's acquisition circuit through the drive board.

[0079] 4. After the controller collects the 24V voltage in the control circuit, it controls the retractable protective device to the protection position, and the protective component extends and is located in front of the running direction of the vehicle's running wheels and auxiliary wheels.

[0080] 5. The interlocking subsystem handles the approach of the train ahead and checks other interlocking conditions for opening the approach signal. Once the signal opening conditions are met, the approach signal will be opened.

[0081] 6. After the signal ahead of the train is opened, the interlocking sends a retraction command to the controller, and the corresponding retractable protective device retracts to its original position in response to receiving the retraction command.

[0082] Among them, when the train stops steadily and accurately, the controller controls the retractable protective device to be in the protective position. When the interlocking front signal is received to be open, the controller controls the retractable protective device to be in the non-protective position.

[0083] The control and acquisition circuits of the protection system for trains disclosed in the present invention can use safety relays to enhance safety. In terms of control mode, two modes, remote control and on-site control, can be realized. When the remote signal fails and normal control cannot be performed, the staff can obtain the control authority of the protection system through the control cabinet on-site to improve availability.

[0084] The retractable protection device is installed on the side of the track beam and the running surface. The on-site control cabinet of the protection system can be set up separately or integrated in the trackside equipment control cabinet.

[0085] The protection system for a train provided by the present disclosure may be designed to at least be able to withstand a train impacting the protection component at a speed of 5 km / h.

[0086] The present disclosure also provides an interlocking system for a train, comprising the above-mentioned protection system provided by the present disclosure.

[0087] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0088] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0089] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A protection system (100) for a train, characterized in that: The protection system (100) comprises: Track beam (10); A retractable protective device (20) is arranged inside the track beam (10) and is used to at least partially extend from the inside of the track beam (10) to the outside of the track beam (10) when extended to prevent the wheels (30) of the train from passing through the track beam (10), and to be accommodated inside the track beam (10) when retracted.

2. The protection system (100) according to claim 1, characterized in that: The retractable protective device (20) comprises: A protective component (21) configured to extend from the inside of the track beam (10) and retract into the inside of the track beam (10); A driving component (22) is connected to the protection component (21) and is used for extending and retracting to drive the protection component (21).

3. The protection system (100) according to claim 2, characterized in that: The driving component (22) is a hydraulic driving device.

4. The protection system (100) according to claim 3, characterized in that: A hydraulic buffer is arranged in the hydraulic drive device.

5. The protection system (100) according to claim 2, characterized in that: The protective component (21) is used to extend from and retract from the running surface of the track beam (10); and / or, The protective component (21) is used to extend from and retract from one or both sides of the track beam (10).

6. The protection system (100) according to claim 2, characterized in that: The height of the protective component (21) extending out of the track beam (10) increases along the traveling direction of the train.

7. The protection system (100) according to claim 2, characterized in that: The protection component (21) has a contact surface for contacting the wheel, and the contact surface is a plane or a curved surface.

8. The protection system (100) according to claim 2, characterized in that: The protection system (100) further comprises: Motor; A transmission component is connected to the motor and the driving component (22) respectively, and is used to transmit energy output by the motor to the driving component (22), so that the driving component (22) can be extended or retracted.

9. The protection system (100) according to claim 8, characterized in that: The transmission component includes at least one of the following: a coupling, a gear, a fluid coupling and a hydraulic motor.

10. An interlocking system for a train, characterized in that: The invention comprises a protection system (100) according to any one of claims 1 to 9.

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