Railway signal interlocking automatic switching positioning safety device

Abstract

The invention provides a railway signal interlocking automatic switching and positioning safety device. The railway signal interlocking automatic switching and positioning safety device comprises a signal interlocking motor driving control circuit, a driving motor and transmission assembly, a traction and pushing rotating rod assembly, a magnetic sensor and displacement assembly, a limiting switch assembly and an emergency circuit. The invention discloses a railway signal interlocking system, which is characterized in that a magnetic sensor mounted in front of a railway line signal machine or a turnout can automatically switch positions according to the current state of the signal machine, and when the signal machine or the turnout allows a locomotive to pass, the magnetic sensor is controlled to be positioned at a non-inductive position of a locomotive inductor, so that the locomotive can pass smoothly; when a signal machine or a turnout forbids the locomotive to pass through, the magnetic sensor is controlled to be located at the sensing position of the locomotive sensor, and if the locomotive does not stop running in time to cross the safety device at the moment, the locomotive sensor generates a voltage pulse signal through sensing and transmits the voltage pulse signal to an LKJ2000 train monitoring system to complete automatic ventilation braking of the locomotive. Running light running, turnout squeezing or side conflict railway driving accidents of locomotives are prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of railway signals, and relates to a railway signal interlocking control safety device. Background Art

[0002] During railway transportation operations, station duty officers usually operate the computer interlocking system to complete route arrangement, and locomotive crews and shunters confirm the switch opening position and signal status to direct the locomotive to travel. In the actual railway transportation production process, due to the negligence of crew members and shunters, they fail to confirm the signal or the switch opening position, resulting in locomotives "running red lights", squeezing switches or causing side collision accidents, which is a relatively major risk factor for railway transportation safety production. Summary of the invention

[0003] The purpose of the present invention is to provide a railway signal interlocking automatic switching positioning safety device in view of the important risk factors existing in the current railway transportation operation process. The device can automatically switch positions according to the current status of the signal machine and the switch. When the signal machine or the switch allows the locomotive train to pass, the magnetic sensor is controlled to be in the locomotive sensor non-sensing position, and the locomotive train can pass smoothly; when the signal machine or the switch prohibits the locomotive train from passing, the magnetic sensor is controlled to be in the locomotive sensor sensing position. At this time, if the locomotive does not stop driving in time to pass the safety device, the locomotive sensor will complete the automatic air release braking of the locomotive after sensing and receiving the prohibition signal of the safety device, so as to prevent the locomotive from "running a red light", squeezing the switch or side collision railway traffic accidents.

[0004] To this end, the present invention adopts the following technical solutions: A railway signal interlocking automatic conversion positioning safety device comprises a signal interlocking motor drive control circuit 1, a magnetic sensor 6, and an emergency circuit 12; the input end of the signal interlocking motor drive control circuit 1 is connected to the railway signal lighting unit circuit, and the output end is connected to a drive motor 2, the output end of the drive motor 2 is connected to a right-angle worm gear reducer 3, the output shaft of the right-angle worm gear reducer 3 is connected to a coupling 4, the other end of the coupling 4 is connected to a traction and push rotating rod assembly 5, a cylindrical vertical support rod 501 is arranged at the bottom of the traction and push rotating rod assembly 5, a fixed bearing 502 is arranged on the vertical support rod 501 for horizontal fixed positioning, a horizontal rotating rod 503 is arranged at the top of the traction and push rotating rod assembly 5, a traction positioning fixed column 504 and a traction rolling bearing 506 are installed at one end of the horizontal rotating rod 503, and a propulsion positioning fixed column 505 and a propulsion rolling bearing (507) are installed at the other end; the magnetic sensor 6 is installed as a whole with linear guide sliders 701, 702 and displacement blocks 801, 802 through a connecting plate, The linear guide sliders 701, 702 are respectively located on the linear guides 901, (902), and the displacement blocks 801, 802 are pulled or pushed by the traction rolling bearing 505 or the thrust rolling bearing 507 during the rotation of the pulling and pushing rotating rod assembly 5 to perform positive or reverse horizontal displacement along the linear guides 901, 902, thereby realizing the positioning and reverse position conversion of the magnetic sensor 6; the emergency circuit 12 automatically intervenes when an abnormal situation such as a power outage occurs in the signal interlocking device, outputs a reverse voltage to the drive motor 2, and transmits or locks the magnetic sensor 6 to the reverse position by pulling and pushing the rotating rod assembly 5.

[0005] Furthermore, limit blocks 101, 102, a positive limit switch 111 and a reverse limit switch 112 are installed at both ends of the linear guide rail 901, which can lock the magnetic sensor 6 at the set positioning and reverse positions.

[0006] Furthermore, the signal interlock motor drive control circuit 1 is mainly composed of 5 groups of AC220V 3 open and 3 closed relays and a motor drive power supply circuit, which is used for signal machine permission or prohibition signal state recognition and drive motor forward and reverse voltage conversion control.

[0007] Furthermore, the traction and push rotating rod assembly 5 is mainly composed of a vertical support rod 501, a fixed bearing 502, a horizontal rotating rod 503, a traction positioning fixed column 504 and a traction rolling bearing 506, a push positioning fixed column 505 and a push rolling bearing 507. The length of the horizontal rotating rod 503 is slightly shorter than the inner side spacing of the linear guide rails 901 and 902. The length of the installation position of the traction positioning fixed column 504 from the center point of the horizontal rotating rod 503 is greater than the length of the installation position of the push positioning fixed column 505 from the center point of the horizontal rotating rod 503. The installation positions of the traction positioning fixed column 504 and the push positioning fixed column 505 can be adjusted arbitrarily. The heights of the traction positioning fixed column 504 and the push positioning fixed column 505 are slightly lower than the heights of the displacement blocks 801 and 802.

[0008] Furthermore, the magnetic sensor 6 is integrally installed with the linear guide sliders 701, 702 and the displacement blocks 801, 802 through a connecting plate. The magnetic sensor 6 is fixed at the center position of the upper part of the connecting plate. The lateral length of the connecting plate is equal to that of the magnetic sensor 6. The linear guide sliders 701, 702 are fixed at the middle positions on both sides of the lateral part of the lower part of the connecting plate. The displacement blocks 801, 802 are fixed at both sides of the longitudinal part of the lower part of the connecting plate. The outer edges are aligned with the outer edges of the magnetic steel. The length is 1 / 2 of the inner spacing between the linear guides 901 and 902. One end is located in the middle position in the longitudinal direction.

[0009] Furthermore, the emergency circuit 12 is mainly composed of a group of batteries and a group of double-open and double-close relays, and is used to provide a reverse voltage to the drive motor 2 when a power failure occurs in the signal interlocking device.

[0010] Furthermore, the overall circuit operating power of the signal interlocking motor drive control circuit 1 and the drive motor 2 is less than 3W.

[0011] The beneficial effects of the present invention are: The present invention can eliminate the potential safety hazards of locomotive "running red lights", squeezing switches or even side collisions and other driving accidents caused by the negligence of locomotive drivers and shunters in failing to confirm the status of signal machines or the opening position of switches during railway transportation production, thereby ensuring railway driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the circuit structure of the present invention; Figure 3 It is the installation schematic diagram of the present invention; In the figure, 1-signal interlocking motor drive control circuit, 2-drive motor, 3-right angle worm gear reducer, 4-coupling, 5-pull-push rotating rod assembly, 6-magnetic sensor, 7-linear guide slider, 8-displacement block, 9-linear guide, 10-limit block, 11-limit switch, 12-emergency circuit. DETAILED DESCRIPTION

[0013] The technical solution of the present invention is described below in conjunction with the accompanying drawings and implementation methods.

[0014] like Figure 1 As shown, a railway signal interlocking automatic conversion positioning safety device includes a signal interlocking motor drive control circuit 1, a drive motor 2, a right-angle worm gear reducer 3, a coupling 4, a pull-push rotating rod assembly 5, a magnetic sensor 6, a linear guide slider 7, a displacement block 8, a linear guide 9, a limit block 10, a limit switch 11, and an emergency circuit 12. The input end of the signal interlocking motor drive control circuit 1 is connected to the railway signal lighting unit circuit, and the output end is connected to the drive motor 2. The output end of the drive motor 2 is connected to the right-angle worm gear reducer 3. The output shaft of the right-angle worm gear reducer 3 is connected to the coupling 4. The other end of the coupling 4 is connected to the traction and push rotating rod assembly 5. A cylindrical vertical support rod 501 is arranged at the lower part of the traction and push rotating rod assembly 5. The vertical support rod 501 is provided with a fixed bearing 502 for horizontal fixed positioning. A horizontal rotating rod 503 is arranged at the upper part of the traction and push rotating rod assembly 5. A traction positioning fixing column 504 and a traction rolling bearing 506 are installed at one end of the horizontal rotating rod 503, and a propulsion positioning fixing column 505 and a propulsion rolling bearing 507 are installed at the other end; the magnetic sensor 6 is connected to the linear guide sliders 701, 702 and the displacement blocks 801, 802 through The plate is installed as a whole, and the linear guide sliders 701 and 702 are respectively located on the linear guides 901 and 902. The displacement blocks 801 and 802 are pulled or pushed by the traction rolling bearing 505 or the propulsion rolling bearing 507 during the rotation of the pulling and pushing rotating rod assembly 5 to perform positive or reverse horizontal displacement along the linear guides 901 and 902, thereby realizing the positioning and reverse position movement conversion of the magnetic sensor 6; the emergency circuit 12 automatically intervenes when an abnormal situation such as a power failure occurs in the signal interlocking device, outputs a reverse voltage to the drive motor 2, and transmits or locks the magnetic sensor 6 to the reverse position by pulling and pushing the rotating rod assembly 5; limit blocks 101 and 102 and a positive limit switch 111 and a reverse limit switch 112 are installed at both ends of the linear guide 901, which can lock the magnetic sensor 6 at the set positioning and reverse positions.

[0015] like Figure 2As shown, the signal interlocking motor drive control circuit 1 is mainly composed of 5 groups of AC220V 3-open and 3-closed relays and a motor drive power supply circuit, which is used for signal machine permission or prohibition signal state recognition and drive motor forward and reverse voltage conversion control; the emergency circuit 12 is mainly composed of a group of batteries and a group of double-open and double-closed relays, which is used to provide reverse voltage to the drive motor 2 when a power outage occurs in the signal interlocking device.

[0016] like Figure 3 As shown, the device of the present invention should be installed in front of the railway signal machine, fastened to one side of the rail by a fixing clip, and the outer shell is made of non-metallic material.

[0017] The electrical circuit of the device of the present invention is connected to the circuit connection terminal of the signal lighting unit, and can automatically switch the position of the magnetic sensor according to the change of the signal display. When the signal is allowed, the magnetic sensor is locked in the reverse position, and the normal passage of the locomotive is not affected; when the signal is prohibited, the magnetic sensor is locked in the positioning position. If the locomotive does not stop driving in time and pass the safety device, the locomotive sensor will sense and generate a voltage pulse signal, which will be transmitted to the LKJ2000 train monitoring system to complete the automatic air release braking of the locomotive, preventing the locomotive from "running a red light", squeezing a turnout or colliding with the side of the railway. Specifically: (1) When the signal changes from an enabling signal (green, yellow, white) to a prohibiting signal (red, blue), the signal interlocking motor drive control circuit 1 outputs a positive control voltage to the drive motor 2, and drives the traction and push rotating rod assembly 5 to rotate clockwise through the right-angle worm gear reducer 3 and the coupling 4. When the horizontal rotating rod 503 rotates 180 degrees, the traction rolling bearing 506 will reach the inner side of the displacement block 801 and pull the magnetic sensor 6 along the linear guides 901 and 902 to move in the positioning direction. When the horizontal rotating rod 503 rotates 360 degrees clockwise, the traction rolling bearing 506 enters the idle state, and the push rolling bearing 507 takes over and enters the working state, pushing the magnetic sensor 6 from the outer side of the displacement block 802 along the linear guides 901 and 902 to continue to move in the positioning direction. When the magnetic sensor 6 reaches the positioning position, the positive limit switch 111 will be triggered, the power supply line of the drive motor 2 will be disconnected, the traction and push rotating rod assembly 5 will stop running, and the magnetic sensor 6 will be locked in the positioning position.

[0018] (2) When the signal maintains the prohibition signal (red, blue) unchanged, the positive limit switch 111 remains unchanged, the power supply circuit of the drive motor 2 remains disconnected, and the magnetic sensor 6 is still locked in the positioning position.

[0019] (3) When the signal changes from a prohibition signal (red, blue) to an permission signal (green, yellow, white), the signal interlock motor drive control circuit 1 outputs a reverse control voltage to the drive motor 2, and drives the traction and push rotating rod assembly 5 to rotate counterclockwise through the right-angle worm gear reducer 3 and the coupling 4. When the horizontal rotating rod 503 rotates 180 degrees, the traction rolling bearing 506 will reach the inner side of the displacement block 802 and pull the magnetic sensor 6 to move in the reverse direction along the linear guides 901 and 902. When the horizontal rotating rod 503 rotates 360 degrees counterclockwise, the traction rolling bearing 506 enters the idle state, and the push rolling bearing 507 takes over and enters the working state, pushing the magnetic sensor 6 from the outer side of the displacement block 801 along the linear guides 901 and 902 to continue to move in the reverse direction. When the magnetic sensor 6 reaches the reverse position, the reverse limit switch 112 will be triggered, the power supply line of the drive motor 2 will be disconnected, the traction and push rotating rod assembly 5 will stop running, and the magnetic sensor 6 will be locked in the reverse position.

[0020] (4) When the traffic light maintains the permission signal (green, yellow, white) unchanged, the reverse limit switch 112 remains unchanged, the power supply circuit of the drive motor 2 remains disconnected, and the magnetic sensor 6 is still locked in the reverse position.

[0021] (5) When the signal interlocking device is working normally, the emergency circuit 12 relay controls to disconnect the emergency battery pack power supply line, and the operation of the signal interlocking automatic conversion positioning safety device is not affected in any way. When the signal interlocking device encounters abnormal conditions such as power outages, the emergency circuit 12 relay controls to connect the emergency battery pack power supply line and output reverse voltage to the drive motor 2. If the previous signal machine displays a permission signal (green, yellow, white), then since the reverse limit switch 112 is in the disconnected state at this time, the drive motor 2 power supply line is disconnected, and the magnetic sensor (6) is locked in the reverse position unchanged; if the previous signal machine displays a prohibition signal (red, blue), then the drive motor 2 starts to rotate in the reverse direction, and through the right-angle worm gear reducer 3 and the coupling 4, the pull-pushing rotating rod assembly 5 rotates counterclockwise. When the horizontal rotating rod 503 rotates 180 degrees After that, the traction rolling bearing 506 will reach the inner side of the displacement block 802 and pull the magnetic sensor 6 to move in the reverse direction along the linear guide rails 901 and 902. When the horizontal rotating rod 503 rotates 360 degrees counterclockwise, the traction rolling bearing 506 enters the idle state, and the pushing rolling bearing 507 takes over and enters the working state, pushing the magnetic sensor 6 from the outer side of the displacement block 801 along the linear guide rails 901 and 902 to continue to move in the reverse direction. When the magnetic sensor 6 reaches the reverse position, the reverse limit switch 112 will be triggered, the power supply line of the drive motor 2 will be disconnected, the traction and pushing rotating rod assembly 5 will stop running, and the magnetic sensor 6 will be locked in the reverse position.

Claims

1. A railway signal interlocking automatic conversion positioning safety device, characterized in that: The invention comprises a signal interlocking motor drive control circuit (1), a magnetic sensor (6), and an emergency circuit (12); the input end of the signal interlocking motor drive control circuit (1) is connected to a railway signal lighting unit circuit, and the output end is connected to a drive motor (2); the output end of the drive motor (2) is connected to a right-angle worm gear reducer (3); the output shaft of the right-angle worm gear reducer (3) is connected to a coupling (4); the other end of the coupling (4) is connected to a traction and push rotating rod assembly (5); a cylindrical vertical support rod (501) is arranged at the bottom of the traction and push rotating rod assembly (5); a fixed bearing (502) is arranged on the vertical support rod (501) for horizontal fixing and positioning; a horizontal rotating rod (503) is arranged at the top of the traction and push rotating rod assembly (5); a traction positioning fixing column (504) and a traction rolling bearing (506) are installed at one end of the horizontal rotating rod (503); and a propulsion positioning fixing column (505) and a propulsion rolling bearing (507) are installed at the other end; The magnetic sensor (6) is integrally mounted with the linear guide sliders (701), (702) and the displacement blocks (801), (802) via a connecting plate. The linear guide sliders (701), (702) are respectively located on the linear guides (901), (902). During the rotation of the pull-pushing rotating rod assembly (5), the displacement blocks (801), (802) are pulled or pushed by the traction rolling bearing (505) or the thrust rolling bearing (507) to perform positive or reverse horizontal displacement along the linear guides (901), (902), thereby realizing the positioning and reverse position conversion of the magnetic sensor (6); The emergency circuit (12) automatically intervenes when an abnormal situation such as a power failure occurs in the signal interlocking device, outputs a reverse voltage to the drive motor (2), and drives or locks the magnetic sensor (6) to the reverse position by pulling and pushing the rotating rod assembly (5).

2. A railway signal interlocking automatic conversion positioning safety device according to claim 1, characterized in that: Limit blocks (101), (102) and a positive limit switch (111) and a reverse limit switch (112) are installed at both ends of the linear guide rail (901), and the magnetic sensor (6) can be locked at a set positioning position or reverse positioning position.

3. A railway signal interlocking automatic conversion positioning safety device according to claim 1, characterized in that: The signal interlock motor drive control circuit (1) is mainly composed of 5 groups of AC220V 3 open 3 closed relays and a motor drive power supply circuit, and is used for signal machine permission or prohibition signal state recognition and drive motor forward and reverse voltage conversion control.

4. The railway signal interlocking automatic conversion positioning safety device according to claim 1, characterized in that: The traction and push rotation rod assembly (5) mainly consists of a vertical support rod (501), a fixed bearing (502), a horizontal rotation rod (503), a traction positioning fixed column (504) and a traction rolling bearing (506), a push positioning fixed column (505) and a push rolling bearing (507); the length of the horizontal rotation rod (503) is slightly shorter than the inner spacing between the linear guide rails (901) and (902); the distance between the installation position of the traction positioning fixed column (504) and the center point of the horizontal rotation rod (503) is longer than the distance between the installation position of the push positioning fixed column (505) and the center point of the horizontal rotation rod (503); the installation positions of the traction positioning fixed column (504) and the push positioning fixed column (505) can be adjusted arbitrarily; the heights of the traction positioning fixed column (504) and the push positioning fixed column (505) are slightly lower than the heights of the displacement blocks (801) and (802).

5. The railway signal interlocking automatic conversion positioning safety device according to claim 1, characterized in that: The magnetic sensor (6) is integrally mounted with the linear guide sliders (701), (702) and the displacement blocks (801), (802) via a connecting plate. The magnetic sensor (6) is fixed at the center of the upper portion of the connecting plate. The lateral length of the connecting plate is equal to that of the magnetic sensor (6). The linear guide sliders (701), (702) are fixed at the middle positions of the two lateral sides of the lower portion of the connecting plate. The displacement blocks (801), (802) are fixed at the two longitudinal sides of the lower portion of the connecting plate. The outer edges are aligned with the outer edges of the magnetic steel. The length is 1 / 2 of the inner spacing between the linear guides (901) and (902). One end is located at the middle position in the longitudinal direction.

6. The railway signal interlocking automatic conversion positioning safety device according to claim 1, characterized in that: The emergency circuit (12) is mainly composed of a group of batteries and a group of double-open and double-close relays, and is used to provide a reverse voltage to the drive motor (2) when a power failure occurs in the signal interlocking device.

7. The railway signal interlocking automatic conversion positioning safety device according to claim 1, characterized in that: The signal interlocking motor drive control circuit (1) and the drive motor (2) have an overall circuit operating power of less than 3W.

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