JPH08142865A - Derailment preventing device for vehicle - Google Patents

Abstract

PURPOSE: To prevent derailment by stopping the travel of a maintenance vehicle immediately and automatically within a little time taken to end up in derailment after wheels are levitated from the rail surface. CONSTITUTION: Proximity sensors 8a, 8b, 8c for detecting a space to the head face of a rail R are provided on the bottom face side of a truck 4 traveling on the rail R being towed by a locomotive 1. When these proximity sensors 8a, 8b, 8c detect the space to the head face of the rail R to be enlarged to the set value or more, an emergency braking device 12 is actuated to stop the travel of a maintenance vehicle immediately.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in the technical field of maintenance vehicles used for transporting various maintenance equipment such as rails and ballasts, and is specifically applied to mobile vehicles. TECHNICAL FIELD The present invention relates to a vehicle derailment prevention device for preventing derailment of a bogie traveling on a rail.

[0002]

2. Description of the Related Art A maintenance vehicle used for transporting rails, ballasts, or other maintenance equipment by connecting a plurality of vehicles to a mobile vehicle is such that the truck is small and lightweight. Then, there was a problem that the car body floated up during transportation and derailed relatively easily.

The location and cause of the derailment accident are the mechanical interceptor that allows the maintenance vehicle to enter the main line from the maintenance base line, the influence of cargo on a sharp curve, and the switching operation of points within the station yard. There are various things such as a mistake and a defect in the bogie device in the vehicle bogie part.

Therefore, conventionally, at points where derailment frequently occurs, such as points and intercepting devices, the derailment accident is prevented by reducing the speed of the maintenance vehicle to a slow speed (about 5 km / h) to proceed. Was.

[0005]

However, even if the traveling speed is reduced as described above, the weight of the vehicle (carriage) itself is light, so that there is a problem that the vehicle floats above the rail surface and derails. In the mechanism of, the wheels do not disengage from the rails instantly, but the wheels on one side float up from the rail surface little by little, and the flange of the wheel on the other side serves as a fulcrum, and this flange acts on the lateral pressure of the vehicle. It is known that when the player loses the track, it is ejected in the lateral pressure direction and derails, and there is some time before derailment.

Therefore, the technical problem of the present invention is to derail the wheel by instantaneously and automatically stopping the running of the maintenance vehicle within a short time until the wheel is lifted from the rail surface and derails. Is to prevent.

[0007]

[Means for Solving the Problems] Means taken in the present invention for solving the above technical problems are as follows.

(1) On the left and right bottom surfaces of the bogie that is pulled by the mobile vehicle and travels on the rail, the distance from the rail head surface is monitored during traveling, and if the distance becomes wider than the set value, the mobile vehicle will move. Provide a proximity sensor that activates the emergency braking device installed on the side.

(2) Two left and right mounting stays are installed on the left and right bottom sides of the trolley, and a plurality of proximity sensors are provided on the bottom surfaces of these stays at intervals in the longitudinal direction of the rail. Mounted side by side in the lateral direction of the head, arranging them side by side in a row, and at the same time, all of the multiple proximity sensors mounted on either the left or right side of the rail had a larger distance from the rail head surface than the set value. If an emergency brake device is installed on the mobile vehicle, it shall be activated.

(3) Alarm lamps are attached to both sides of the trolley, and either the left or right proximity sensor attached to the bottom side of the trolley detects that the distance from the rail head surface is wider than the set value. In this case, the alarm lamp on the detecting side should be turned on.

(4) A timer is provided between the proximity sensor attached to the trolley and the emergency brake device provided on the mobile vehicle so as to have a predetermined time lag in the operation of the emergency brake device based on the detection of the proximity sensor.

(5) When the traveling state of the mobile vehicle or the bogie is detected in either the mobile vehicle or the bogie, and the traveling speed of the stopped mobile vehicle or bogie reaches the set speed, the emergency brake device is provided. Or, provide a speed detection device capable of switching the proximity sensor from the OFF state to the ON state and switching the emergency brake device or the proximity sensor to the OFF state again when the mobile vehicle or the bogie stops.

(6) An emergency braking device operated by a proximity sensor should be attached to both the mobile vehicle and the bogie.

[0014]

Each of the means described in (1) to (6) above operates as follows.

According to the means described in (1) above, when one wheel of the bogie floats above the rail surface, the proximity sensor provided on the bottom side of the bogie is detected to immediately activate the emergency brake of the mobile vehicle. , It is possible to prevent the derailment of the truck due to lateral pressure.

According to the means described in (2) above, the right and left 2
On each of the mounting stays, a plurality of proximity sensors are mounted at intervals in the longitudinal direction of the rail, and are arranged side by side in a row in the lateral width direction of the rail head surface.
When a plurality of proximity sensors mounted side by side in a row are turned on at the same time, that is, when it is detected that the distance from the rail head surface has become wider than the set value, the emergency braking device provided in the mobile vehicle is activated. Therefore, taking into consideration the wheel width, rail level, or the amount of slack when the track curves, the emergency brake is activated only when the wheels of the bogie are completely lifted from the rail head surface. It makes it possible to eliminate malfunctions.

According to the means described in the above (3), when the proximity sensor detects that one wheel of the bogie is lifted from the rail head surface, the alarm lamp mounted on the lifted side is turned on. Therefore, it is possible for an operator or the like to easily confirm the dolly and its wheels that are in danger of derailment from this lit state and deal with them.

Since old rails are generally used for the tracks on the base lines other than the main line and the rail level is not constant, the proximity sensor malfunctions and the emergency brake is applied at this defective track portion. According to the means described in the above (4), a time lag is generated from the proximity sensor detecting the wheel lift up to the operation of the emergency brake,
Since the vehicle passes through the bad track portion during this period, it is possible to solve the problem that the emergency brake device is sensitively actuated and the maintenance vehicle is unnecessarily stopped due to the bad track.

According to the means described in the above (5), the emergency brake device or the proximity sensor is switched from the OFF state to the ON state to provide the derailment prevention function only when the bogie is driven by the mobile vehicle. Although it is effective, the emergency brake device or the proximity sensor is in the OFF state when the vehicle is stopped, so when the vehicle is stopped on a defective track part and working, the malfunction of the emergency brake device due to the detection of the proximity sensor is prevented. ,
Allows work to proceed safely.

According to the means described in the above (6), since the emergency braking device is provided on both the mobile vehicle and the bogie, when the wheels of the bogie are lifted up, the running of the vehicle is instantaneously stopped to surely prevent derailment. To be able to do.

As described above, the above-mentioned technical problems can be solved by the above-mentioned means, and the problems of the conventional technology can be solved.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the vehicle derailment prevention apparatus according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a bottom view showing the construction of a maintenance vehicle equipped with a derailment prevention device according to the present invention and its electrical configuration. 1 is a mobile vehicle, and 2 and 2 are mobile vehicles 1. Wheels 4
Indicates a plurality of carriages connected to the mobile vehicle 1 by using connecting rods 3, and the maintenance vehicle is configured by organizing one mobile vehicle 1 and a plurality of carriages 4 ... To be done.

FIGS. 2 and 3 show a side view and a bottom view of each dolly 4 ... In FIGS. 1 to 3, 5 and 5 are attached to the bottom of each dolly 4. Front and rear wheels, 6
Is a bearing box that supports the axles of these wheels 5, and 6a is a tightening bolt.

Reference numerals 7 and 7 denote left and right mounting stays respectively installed on both sides of the bottom surface of each carriage 4, specifically, between the front and rear bearing boxes 6 and 6, and 8a, 8b and 8c denote both of them. Lines are formed on the bottom surfaces of the mounting stays 7 and 7 in such a manner that they are spaced from each other along the longitudinal direction of the rails R and R and are displaced from each other in the lateral width direction of the rail head surface as shown in FIG. X, X are proximity sensors mounted in a line in a row along X, 8T ... Proximity sensors 8a, 8b, 8
The mounting shaft of c is shown.

Further, in FIG. 1, TB, TC, TD are relay control boxes provided on the carriages 4 ..., L ₂ ... are proximity sensors 8a mounted on the left and right mounting stays 7, 7 of the carriages 4, respectively. and ～8C, a lead wire connecting the alarm lamp 9, 9 mounted on each truck 4 ... left and right sides of, L ₃ ... is the alarm lamp and which like the bogie 4 ... proximity sensors 8a to 8c 9 , 9 connecting the lead wires L ₂ ... Connecting to each other, reference numerals 10 and 11 ... Indicate the connectors for the connecting wires L ₃ ... Provided to the mobile vehicle 1 and each carriage 4.

Further, L ₁ is a connecting line for connecting the proximity sensors 8a to 8c of the above-mentioned carriages 4 to the speed detecting device 14 provided in the mobile vehicle 1 via the lead wire L ₂ and the connecting wire L _3.
Reference numerals 2 and 13 are an emergency braking device and a timer, which are also provided in the mobile vehicle 1, and these emergency braking device 12 and the timer 13 are a control box T equipped with a floating detection alarm AR.
It is connected to the A control circuit.

Each of the proximity sensors 8a to 8c described above monitors the distance L from the head surface of the rail R, and when this distance L exceeds a set value, that is, the wheels 5 of any of the trucks 4 are moved. For example, when the rail R rises above the head surface of the rail R for several mm or more, it is detected and the detection signal is detected and the lead control boxes TB to TD, the lead wire L ₂ , the connecting wire L ₃ and the connecting wire L ₁ are detected.
To the control box TA of the mobile vehicle 1 and immediately activates the emergency braking device 12 and the alarm AR to drive the mobile vehicle 1
Of the vehicle, that is, the traveling of the maintenance vehicle is instantaneously stopped.

The alarm lamps 9 and 9 mounted on the left and right sides of each carriage 4 are provided in the relay control boxes TB described above.
When the proximity sensors 8a to 8c detect the lift-up of the wheels 5 by the action of TD, only the lamp 9 on the lifted side of the truck 4 having the lift-up lights up, and the lifted-up portion can be easily operated by an operator or the like. It is structured so that it can be visually confirmed.

Further, the timer 13 connected to the control box TA of the mobile vehicle 1 is maintained by providing a time lag of about 2 seconds to the operation of the emergency braking device 12 based on the detection of the proximity sensors 8a to 8c described above. When the vehicle passes through the bad track portion, the proximity sensors 8a to 8c detect the emergency braking device 12 so that the emergency brake device 12 does not operate sensitively. The emergency braking device 12 is designed so as not to react immediately.

In addition, when the traveling speed of the mobile vehicle 1 is detected by the speed detection device 14 and the mobile vehicle 1 is stopped, all the proximity sensors 8a to 8c or the emergency braking device 12 described above are detected. When the mobile vehicle 1 and the bogie 4 ... (maintenance vehicle) are stopped, the wheel 5 is lifted from the head surface of the rail R due to a bad track or the like. Emergency braking device 12
When the speed detection device 14 detects that the speed of the mobile vehicle 1 has reached 1 km / h, for example, while controlling the alarm AR not to operate and the proximity sensors 8a to 8c, or When the OFF state of the emergency brake device 12 and the alarm AR is switched to the ON state and the proximity sensors 8a to 8c detect the lifting of the wheels 5,
The emergency braking device 12 and the alarm AR are configured to be activated immediately.

In the embodiment shown in FIG. 1, the emergency braking device 12 is attached only to the mobile vehicle 1, but it may be attached to each carriage 4 to enhance the braking effect. In the embodiment shown in FIG. 2 and FIG. 3, the stays for mounting the proximity sensors 8a to 8c are erected between the front and rear bearing boxes 6 and 6, but this erected position is different from the rail head surface by the load or springs. As long as the positional relationship does not change, it is not limited to the bearing boxes 6 and 6 described above, and may be, for example, the tightening bolts 6a ... Optional.

Since the vehicle derailment prevention apparatus according to the present invention has the above-described structure, the mobile vehicle 1 and the plurality of carriages 4 ...
The wheels 5 of the truck 4 are running while the maintenance vehicle constructed from
Is lifted from the head surface of the rail R, and when the lifted state exceeds a set value (for example, about several millimeters), the proximity sensors 8a to 8c detect this and the mobile vehicle 1 or each carriage 4 is detected.
Since the emergency braking devices 12 and the alarms AR attached to the ... Are activated to immediately stop the running of the maintenance vehicle to cause a danger of derailment, the derailment of the carriage 4 can be prevented.

Further, the proximity sensors 8a to 8c are mounted in a line in a state that they are spaced from each other in the longitudinal direction of the rail R and are displaced from each other in the lateral width direction of the rail head surface.
The emergency brake device 12 and the alarm AR are configured to be activated only when all of the proximity sensors 8a to 8c simultaneously detect that the distance from the rail head surface has become wider than the set value. The emergency braking device 12 and the alarm AR can be operated properly in consideration of the width of 5 ..., the level of the rail R, the slack amount at the time of the track curve, and the like.

Further, in the present invention, when the proximity sensors 8a to 8c detect the lift of the wheels 5, the relay control boxes TB to TC actuate the alarm lamp 9 on the lifted side of the trolley 4 to turn on the vehicle. Since the operator or the like can surely visually check which side wheel 5 of the dolly 4 is in the danger of derailment, it is possible to appropriately take measures for preventing derailment.

In addition, in the present invention, the proximity sensors 8a-8c are provided.
The timer 13 provides a time lag of, for example, about 2 seconds between the time when the wheel 5 is lifted up and the time when the emergency braking device 12 and the alarm AR are activated.
Only when the mobile vehicle 1 is traveling by the speed detection device 14, all the proximity sensors 8a to 8c or the emergency braking device 12 are provided.
Also, the alarm AR is turned on, and when the vehicle is stopped, all of these are turned off, so that the emergency braking device 12 and the alarm AR in the defective track portion are controlled sensitively, and the defective track is also generated. It is possible to safely perform maintenance work by controlling useless operations of the emergency braking device 12 and the alarm AR when the vehicle is stopped at a part and working.

[0037]

As described above, according to the vehicle derailment prevention apparatus of the present invention, the maintenance vehicle is derailed at the mechanical stealing device portion, the sharp curve portion, or the point portion in the station yard. In addition, it is possible to prevent the accident of derailment due to a defect in the bogie device or the like, and it is possible to exert an advantage that various track maintenance work can be safely carried out.

[Brief description of drawings]

FIG. 1 is a bottom view illustrating the configuration and the electrical configuration of a maintenance vehicle equipped with a derailment prevention device according to the present invention.

FIG. 2 is a side view of a truck used in the present invention.

FIG. 3 is a bottom view of the cart of the same.

[Explanation of symbols]

1 rail car 3 connecting rod 4 bogie 5 wheels 6 bearing box 7 mounting stay 8a, 8b, 8c proximity sensor 9 warning lamp 12 emergency brake device 13 timer 14 speed detection device L _1, L _2, L ₃ wire R rail

Claims (6)

[Claims] Claims: 1. On the left and right bottom sides of a bogie that is pulled by a mobile vehicle and travels on a rail, the spacing between the rail head surface during traveling is monitored, and if the spacing becomes wider than a set value, the mobile vehicle side. A derailment prevention device for a vehicle, comprising a proximity sensor for activating an emergency braking device provided in the vehicle. 2. The left and right mounting stays are installed on the left and right bottom surfaces of the bogie, and a plurality of proximity sensors are provided on the bottom surfaces of these stays at intervals in the longitudinal direction of the rail, and the rail head. Install them in a row by shifting their positions from each other in the lateral direction of the surface, and at the same time, make sure that the distance from the rail head surface is wider than the set value for all of the multiple proximity sensors installed on either the left or right side. The vehicle derailment prevention device according to claim 1, wherein the emergency braking device provided in the mobile vehicle is activated when detected. 3. An alarm lamp is mounted on both sides of the carriage,
When either the left or right proximity sensor attached to the bottom side of this truck detects that the distance from the rail head surface has become wider than the set value, the alarm lamp on the detected side is turned on. The derailment prevention device for a vehicle according to claim 1, wherein 4. A timer is provided between the proximity sensor attached to the trolley and the emergency brake device provided on the mobile vehicle, for providing a predetermined time lag in the operation of the emergency brake device based on the detection of the proximity sensor. The derailment prevention device for a vehicle according to claim 1. 5. The emergency braking device or the vehicle when the traveling state of the mobile vehicle or the bogie is detected and the traveling speed of the stopped mobile vehicle or the bogie reaches a set speed. Switching the proximity sensor from the OFF state to the ON state,
3. A speed detecting device capable of switching the emergency brake device or the proximity sensor to the OFF state again when the mobile vehicle or the bogie stops.
Derailment prevention device for vehicles as described. 6. The vehicle derailment prevention device according to claim 1 or 2, wherein an emergency braking device operated by a proximity sensor is attached to both the mobile vehicle and the bogie.