JP2004051020A - Preventing snow accretion process for removal and its device for rolling stock lower part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent snow from being adhered to the lower part of a rolling stock in winter season within a short time by applying a simple arrangement and remove adhered snow. <P>SOLUTION: Either an anti-snow accretion agent or compressed air is injected from the nozzles at an inner spray means 3 and a surface spray means 4 toward the lower part of a vehicle and an inside segment of the lower part of the vehicle to prevent snow from being adhered to it and at the same time to remove the adhered snow from both outer sides of the vehicle stopped or running at a low speed. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a snow accretion prevention and removal device that performs snow accretion prevention and snow accretion removal on a lower part of a railway vehicle in winter.
[0002]
[Prior art]
When running a train in winter in a snowfall area, removing snow from the entire vehicle, including the roof, has been a problem since ancient times. It is serious because it is accompanied by a decrease in safety and a deterioration in ride comfort due to the influence of snow, and a great deal of human resources have been invested in snow prevention and snow removal. The specific issues are:
1) In the lower peripheral equipment to be visually inspected, there are parts that cannot be confirmed due to snow accumulation. 2) Snow accumulation during traveling is stacked, cooled by the traveling wind and frozen, separated by vibration, and the falling ice blocks rebound. 3) If the ice blocks fall unfortunately into the gap between the tong rails due to the vibrations caused by passing through the turnout, a point failure due to inability to switch is caused. 4) The surface portion or height of the air spring of the bogie 5) There is a problem that snow accumulates on the adjusting valve etc. and impairs the spring performance of the air spring. 5) Snow accumulates around the brake mechanism and consolidates, impairing the braking action. It has been reported.
[0003]
In order to address these issues, for trains that are operating, thrust snow at a stop station with a stick, inject high-pressure hot water with a hose, and for detained vehicles, tens of The current situation is to install a wind heater to melt snow accumulation over a long period of time. As a result, not only is a huge labor and fuel cost necessary, but also there are cases where the lower part of the vehicle is accidentally damaged.
[0004]
The lower peripheral devices of the vehicle are various depending on the type of the vehicle such as a locomotive, a train, a railcar, and the like. As a typical example, a plan view of a bogie is shown in FIG. 19 and a side view is shown in FIG.
There are various types of bogies with or without power, brake types, bogie structures, etc.This figure shows a beam type bolsterless bogie that is often adopted in recent vehicles, and the pillow spring is a direct mount A non-powered bogie equipped with an air spring and a disc brake, 9 is a bogie, 91 is a bogie frame, 92 is wheels, 93 is an axle box, 94 is a pillow spring, 95 is a brake system, C is a car body on the bogie, R Is a rail. Of these, the places where it is desired to prevent snow accretion are around the bearing box 93 (including the upper shaft spring), around the pillow spring, and around the brake system 95 inside the bogie, but make sure that no chemical liquid is applied to the surface of the brake disc. There is a need.
[0005]
As a measure to prevent snow accumulation, it is conceivable to paint the underside of the vehicle with a water-repellent paint, but the underside of the vehicle should not be painted with brake shoes, brake discs, wheel treads, motor vents, etc. There are parts that must not be used, and a lot of equipment, piping, and wiring are involved, and painting work by hand is troublesome, and if the coating film is not completely dry, it will be easy to accumulate snow. Only when entering the factory can the construction be performed.
[0006]
[Problems to be solved by the invention]
The present invention solves such a conventional problem, prevents daily snow accretion by performing a simple treatment in a short time, and can easily remove the snow even if a little snow accumulates on the stake. It is an object of the present invention to realize a method for preventing snow removal at the lower part of a railway vehicle and a device therefor.
[0007]
[Means for Solving the Problems]
The method for preventing snow accumulation on a lower part of a railway vehicle according to the present invention prevents snow accumulation by injecting a snow accumulation inhibitor from both outer sides of a stopped or low-speed traveling railway vehicle toward a lower part and an inner part of the lower part of the vehicle. The method for removing snow accumulation on the lower part of a railway vehicle according to the present invention is characterized in that compressed air flows from both outer sides of a stopped or low-speed running railway vehicle toward the lower part and the lower part inside of the vehicle. In addition, the method for preventing snow removal at the lower part of the railway vehicle of the present invention is characterized by removing snow accumulation by injecting the vehicle from both outer sides of the stopped or low-speed running railway vehicle. The present invention is characterized in that snow accretion is sprayed toward the lower portion and inward of the lower portion to prevent snow accretion, and that compressed snow is removed by injecting compressed air.
[0008]
Alternatively, in addition to the above-described method for preventing snow accumulation, a method for removing snow accumulation at the lower part of a railway vehicle is characterized in that an electric planar heater is attached to a flat portion on the upper surface of the lower part of the railway vehicle to remove snow accumulation.
The snow accretion prevention and removal device at the lower part of the railway vehicle of the present invention detects a frame having a traveling device that can move on both outer sides in parallel with a stopped or low-speed traveling railway vehicle, and detects the approach to the railway vehicle. Approach detecting means, an internal spray means attached to the frame via a telescopic arm extendable inward toward the lower part of the railway vehicle, and the frame via a fixed arm toward the lower part of the railway vehicle. Surface spraying means, and a chemical air supply means for injecting a snow accretion inhibitor or compressed air from the internal spraying means and the surface spraying means, preferably the internal spraying means is provided around a horizontal axis. The snow accretion prevention and removal device at the lower part of the railway vehicle, wherein the device has a rotating nozzle that rotates in a direction perpendicular to the horizontal axis and that can change the injection direction. Alternatively, the internal spray means is a snow accretion prevention and removal device at the lower part of the railway vehicle having a horizontal air nozzle directed inward toward the lower part of the railway vehicle, and the internal spray means is provided at the rotary nozzle. The snow accretion prevention and removal device at the lower part of the railway vehicle having a cover plate capable of closing the air nozzle in conjunction therewith.
[0009]
Alternatively, there is provided the above snow-removal prevention and removal device at the lower part of a railway vehicle, wherein an electric planar heater is detachably attached to a flat part of the upper surface of the lower part of the railway vehicle.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
According to the present invention, at a stand-by place of a train other than the main line such as a side line of the starting station, a chemical solution (hereinafter, referred to as a “chemical solution” or “chemical solution”) having a snow-prevention effect from both outer sides of the vehicle toward the lower part and the lower inner part of the vehicle in advance. In addition to preventing snow and dust from adhering to the train after running, it can be re-entered into the above-mentioned stand-by area, etc., from the outside of the vehicle to the lower part of the vehicle and the lower part inside. Since the compressed air is jetted toward the head, the snow accumulation can be easily removed in combination with the effect of the snow accumulation preventing agent.
[0011]
Further, by applying a snow-preventing agent to the lower part of the vehicle in advance, or by attaching an electric planar heater to a flat part of the upper part of the lower part of the vehicle and injecting compressed air in a heated state, it is easier to snow-cover. Can be removed.
The snow accretion preventing agent to be used is a quick-drying, non-adhesive agent having a strong adhesion to metals and a water-repellent effect. For example, a fluorine-based paint or a fluorine-based coating agent is preferable.
[0012]
【Example】
FIG. 1 is a plan view showing one side of an embodiment of a snow accumulation preventing and removing apparatus (hereinafter, may be simply abbreviated as "snow accumulation preventing and removing apparatus") below a railway vehicle according to the present invention, and FIG. FIG. 3 is a front view of the same embodiment as viewed from the rail direction. FIG. 3 is a front view of one side of the embodiment viewed from the rail direction. A running rail for the frame 1 provided in parallel with the outside of the vehicle, 22 is a running roller, and 23 is a running motor.
[0013]
The snow removal prevention device of the present invention is separated on both sides of the vehicle and operates in synchronism, but is mechanically not connected on both sides, so that the traveling rail 21 and the traveling roller 22 can travel without the device falling over. , A horizontal roller, a vertical roller and the like may be appropriately combined.
Reference numeral 3 denotes an internal spray means for injecting a snow accumulating agent or compressed air toward the lower inside of the vehicle, 31 denotes a spray unit, 32 denotes a pantograph-shaped telescopic arm having a spray unit 31 attached to the tip, and 33 denotes a telescopic arm 32. A surface spray means for injecting a snow accretion inhibitor or compressed air toward the lower surface of the vehicle; 41, a spray nozzle; 42, a fixed arm to which the spray nozzle is attached; 51, a chemical liquid air supply means 5; A tank for containing the chemical solution, 52 a pump for feeding the same, 62 a jumpsuit box of electric wiring, 7 an approach detecting means for detecting that the snow accretion prevention and removal device of the present invention has approached a railway vehicle, Reference numeral 71 denotes an approach sensor, and reference numeral 73 denotes a telescopic cylinder for moving the sensor in and out. As the pump 52, for example, an air pump driven by compressed air is suitable.
[0014]
It is necessary to connect nearby factory air or to prepare a separate compressor as a source of compressed air in the snow removal preventing and removing apparatus of the present invention.
FIG. 4 is a partial plan view showing one set of the internal spraying means 3 and the surface spraying means 4 in a state where the telescopic arm 32 is extended. 53 is a hose of the chemical air supply means 5, and 61 is an electric system. This is our cable.
[0015]
Subsequently, as a specific example of snow removal prevention and removal at the lower part of the railway vehicle, a case of preventing and removing snow from the bogie illustrated in FIGS. 19 and 20 will be described. FIG. 5 is a plan view showing a state in which the snow accretion prevention and removal device of the embodiment is stopped at a position corresponding to a bogie below the vehicle, FIG. 6 is a side view, and FIG. 7 is a front view. In the snow accretion prevention and removal device in which the position of the cart is detected by the approach detection means 7 and stopped accordingly, the telescopic arm 31 of the internal spray means 3 extends to a predetermined position, and the spray unit 31 is near the brake system 95; On the other hand, the spray nozzle 41 of the surface spray means 4 is located at a position covering the shaft box 93. The fixed arm 42 does not perform the expansion and contraction operation, and it is optional to appropriately adjust the mounting position of the fixed arm 42 with respect to the frame 1 in accordance with the wheel base, the shaft spring height, and the like of the target bogie. Spraying on the air spring located on the surface of the truck can also be performed by the surface spraying means 4.
[0016]
As will be described later, a snow-preventing agent is sprayed from the spray unit 31 of the internal spraying means 3 and the spray nozzle 41 of the surface spraying means 4 and adheres to the lower surface of the vehicle to prevent snow accumulation and to prevent some snow accumulation. However, this can be easily removed by compressed air.
Next, details of the function of the spray unit 31 of the internal spray means 3 will be described with reference to FIGS. 8 is a side view showing the spray unit 31, FIG. 9 is a front view thereof, FIG. 10 is a horizontal sectional view of the spray unit 31, and FIG. 11 is a partial side view taken along the line BB in FIG. The spray unit 31 has a rotary nozzle 312 that is rotatable about the horizontal axis and that can change the spraying direction and that is perpendicular to the horizontal axis. Can be injected. On the other hand, the spray unit 31 also has a horizontal air nozzle 316 directed inward in the lower part of the vehicle as shown in FIG.
[0017]
311 is a nozzle cover for preventing the spray from the air nozzle 316 in the horizontal direction from scattering more than necessary. 313 is a stepping motor for rotating the rotary nozzle 312. 314 is a cold-resistant cover over the surface. A rotary joint inserted into the connection portion, 317 is a movable cover plate provided at the outlet of the air nozzle 316, 318 is an arm having a cover plate 316 attached to one end, and 318a is a coil for urging the arm 318 to a vertical position. The spring 319 is a roller provided at the other end of the arm 318, and the reference numeral 316a is a fixed lower cover plate closing the outlet of the rotary nozzle 312 when the rotary nozzle 312 faces downward.
[0018]
Although both the compressed air and the chemical are sent from the hose 53, either the chemical or the compressed air is ejected by switching the intermediate solenoid valve. By rotating the rotary nozzle 312 by the stepping motor 313, the chemical is ejected from the rotary nozzle 312 in the radial direction with respect to the horizontal axis within the range of the angle indicated by the arrow in FIG. During this time, the air nozzle 316 in the horizontal direction is blocked by the cover plate 317, so that the chemical solution does not jet in the horizontal direction.
[0019]
When the rotary nozzle 312 moves downward and reaches the position shown by the solid line in FIG. 11, the rotary nozzle 312 comes into contact with the roller 319 and rotates the cover plate 317 via the arm 318, so that the air nozzle 316 is opened and compressed. Air or chemical liquid can be ejected in the horizontal direction. Here, the solenoid valve is switched so that compressed air is ejected. When the rotary nozzle 312 is directly downward, the rotary nozzle 312 is blocked by the lower cover plate 316a, and the ejection of the compressed air from the rotary nozzle 312 stops.
[0020]
FIG. 12 is a piping diagram showing the above-described compressed air and chemical liquid ejection paths and electric signal paths. SV ₁ , SV ₂ , SV ₃ , SV ₄ , and SV ₅ are pump 52 rotation, chemical liquid injection, and telescopic arm, respectively. This is a solenoid valve for switching between expansion and contraction, expansion and contraction arm expansion and contraction, and proximity detection device arm expansion and contraction. That solenoid valve for switching the ejection of the compressed air and chemical are SV ₂ in FIG.
[0021]
FIG. 13 is a flowchart showing a procedure for injecting snow-prevention material to the lower part of the vehicle, and FIG. 14 is a flowchart showing a procedure for removing snow accumulation by injecting compressed air to the lower part of the vehicle. . In the case of a bogie example, this flow is repeated for two bogies per car, and for each train of the train set in the case of a connected train, the spray time per location is at most several seconds, Even if the work is repeated a predetermined number of times, the entire work time is short. Further, even if the target vehicle is not completely stopped, if the snow accretion prevention and removal device of the present invention runs in synchronization with the vehicle, it is possible to carry out the operation while driving at low speed.
[0022]
Note that the subject railcar can be moved by the rail R, and the snow removal prevention and removal device of the present invention can also be moved by the dedicated traveling rail 21. Therefore, by moving one of them and detecting the approach, Work can be started, but for example, if the railway car is a long train, the range of movement of the snow accretion prevention and removal device is limited, and the car is sequentially moved for each car by self-propelled or by using a replacement locomotive. It is desirable to perform the work by moving the apparatus, and to perform processing such as spraying or dripping of the injected chemical solution, falling snow accretion, and the like in a limited area.
[0023]
Furthermore, snow can be more easily removed by detachably attaching an electric planar heater to a flat portion on the upper surface of the cart. An example will be described with reference to the drawings. 15 is a partial cross-sectional view of the bogie frame showing a state in which the electric planar heater 8 is detachably attached to a flat portion on the upper surface of the bogie frame 91. FIG. 16 is a plan view showing the planar heater 8 in a detached state. Reference numeral 81 denotes a heating mat which is a main body portion of the sheet heater 8, reference numeral 82 denotes a mounting belt for detachably attaching the heating mat to a bogie frame 91, reference numeral 83 denotes a buckle, and reference numeral 84 denotes a lower surface of the heating mat 81 between the bogie frame 91. The insulating rubber 85 to be inserted is an electric wiring for causing the heating mat 81 to generate heat.
[0024]
The heating mat 81 is obtained by embedding a heating wire in a polyethylene resin sheet, and is commercially available for floor heating or the like, and can be used after being cut into an arbitrary planar shape. Although it may be directly attached to a necessary portion, it is desirable to attach and detach it with a belt or the like as in this example in consideration of maintenance of the bogie such as crack inspection of a welded portion. In addition, since there is a risk that an overhead line voltage is applied to the bogie frame due to poor grounding or the like, it is desirable to insert an insulating rubber 84 between the heat generating mat 81 and the bogie frame 91 for safety, and to prevent the heating mat 81 from falling out. It is good to stick on the lower surface with an adhesive. If the snow accretion preventing agent is sprayed on the surface of the heat generating mat 81, the removal of snow accretion is easier.
[0025]
FIGS. 17 and 18 show examples in which the planar heater 8 is attached to the cart shown in FIGS. 19 and 20.
[0026]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, snowing to the lower part of a railroad vehicle is prevented by simple work, and even if there is some snowing, it can be easily removed and the damage of the snowfall to the lower part of a vehicle in winter running of a vehicle is reduced. It has an excellent effect that it can be done.
[Brief description of the drawings]
FIG. 1 is a plan view showing one side of an embodiment of the present invention.
FIG. 2 is a side view as viewed from an AA direction in FIG.
FIG. 3 is a front view of one side of the embodiment of the present invention viewed from the rail direction.
FIG. 4 is a partial plan view showing a surface spray means according to the embodiment of the present invention.
FIG. 5 is a plan view showing a use state of the embodiment according to the present invention.
FIG. 6 is a side view showing a use state of the embodiment according to the present invention.
FIG. 7 is a front view showing a use state of the embodiment of the present invention.
FIG. 8 is a side view showing a spray unit according to the embodiment of the present invention.
FIG. 9 is a front view showing a spray unit according to the embodiment of the present invention.
FIG. 10 is a horizontal sectional view of a spray unit according to the embodiment of the present invention.
FIG. 11 is a partial side view as viewed in the direction of arrows BB in FIG. 10;
FIG. 12 is a piping wiring system diagram according to an embodiment of the present invention.
FIG. 13 is a flowchart in the case of injecting a snow accretion preventing agent in the embodiment of the present invention.
FIG. 14 is a flowchart in the case of injecting compressed air in the embodiment of the present invention.
FIG. 15 is a partial sectional view of a bogie showing an example in which the planar heater according to the embodiment of the present invention is attached.
FIG. 16 is a plan view showing an example of a planar heater according to the embodiment of the present invention.
FIG. 17 is a plan view showing an example of a truck to which the planar heater according to the embodiment of the present invention is attached.
FIG. 18 is a side view showing an example of a truck to which the planar heater according to the embodiment of the present invention is attached.
FIG. 19 is a plan view showing an example of a truck according to the present invention.
FIG. 20 is a side view showing an example of a truck according to the present invention.
[Explanation of symbols]
Reference Signs List 1 frame 2 running means 3 internal spray means 4 surface spray means 5 chemical air supply means 6 electric system 7 approach detection means 8 planar heater 9 cart 21 running rail 22 running roller 23 running motor 31 spray unit 32 telescopic arm 33 telescopic cylinder 41 Spray nozzle 42 Fixed arm 51 Tank 52 Pump 53 Hose 61 Cable 62 Jumpsuit box 71 Detection sensor 72 Arm 73 Telescopic cylinder 81 Heating mat 82 Mounting belt 83 Buckle 84 Insulation rubber 85 Electric wiring 91 Bogie frame 92 Wheel 93 Axle box 94 Pillow spring 95 Brake system 311 Nozzle cover 312 Rotary nozzle 313 Stepping motor 314 Cold cover 315 Rotary joint 316 Air nozzle 317 Cover plate 317a Lower cover plate 18 arms 318a coil spring 319 roller C body R rail

Claims (9)

Preventing snow from accumulating on the lower part of a railway vehicle by spraying a snow accretion inhibitor from both outer sides of a stopped or low-speed traveling railway vehicle toward the lower part and the lower inner part of the vehicle to prevent snow accumulation Method. A method for removing snow accumulation on a lower part of a railway vehicle, characterized in that snow is removed by injecting compressed air from both outer sides of a stopped or running railway vehicle toward a lower part and an inner part of the lower part of the vehicle. A snow-prevention agent is sprayed from both outer sides of a stopped or low-speed running railway vehicle toward the lower part and the lower inner part of the vehicle to prevent snow accretion and also to inject compressed air to remove snow accretion. A method for preventing snow from being removed at the lower part of a railway vehicle. 4. A method according to claim 1, further comprising attaching an electric planar heater to a flat portion of the upper surface of the lower part of the railcar to remove snowfall. Snow removal method. A frame (1) having a traveling device that can move on both sides outside in parallel with a stopped or low-speed running railway vehicle, approach detection means (7) for detecting approach to the railway vehicle, and the railway An internal spray means (3) attached to the frame (1) via a telescopic arm (32) extendable inward into the lower part of the vehicle, and a fixed arm (42) toward the lower part of the railway vehicle. Surface spraying means (4) attached to said frame (1) through said inner spraying means (3) and chemical air supply means (5) for injecting a snow accumulating agent or compressed air from said internal spraying means (3) and surface spraying means (4). ) And a snow removal prevention device at the lower part of the railway car. The undercarriage according to claim 5, wherein the inner spray means (3) comprises a rotating nozzle (312 °) perpendicular to the horizontal axis, the nozzle being rotatable about a horizontal axis and capable of changing the injection direction. Snow prevention and removal equipment. The apparatus according to claim 6, wherein the internal spray means (3) has a horizontal air nozzle (316 °) directed inwardly into the lower part of the railway vehicle. 8. The snow-removal prevention removal at the lower part of the railway vehicle according to claim 7, wherein the internal spraying means (3) has a cover plate (317 で き る) capable of closing the air nozzle (316) in conjunction with the rotating nozzle (312). apparatus. 9. The apparatus according to claim 5, wherein an electric planar heater (8) is detachably mounted on a flat portion of the upper surface of the lower part of the railway vehicle.

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