JPH05229430A - Rolling stock - Google Patents

Abstract

PURPOSE:To achieve less noise without marring cooling function on equipment in a bogie for a rolling stock. CONSTITUTION:An open/close slit 2 which can be opened and closed by a certain means is provided for a bogie cover 1 at a bogie-longitudinal position to set up a presser bar spring 3 so that the open and close can be selected corresponding to the advance direction of a rolling stock. In this way, less noise is achieved without marring cooling effect on equipment in a bogie.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle having a vehicle body, a bogie, and a bogie cover, which is particularly applicable to high-speed traveling.

[0002]

2. Description of the Related Art In response to an increase in the speed of railway vehicles, efforts are being made to suppress the noise generated by the traveling of the vehicles. Therefore, it is known that, for example, by providing a so-called skirt in which the lower part of the side surface of the vehicle body is continuously integrated, it is effective to suppress the generation of wind noise generated from the uneven parts of the underfloor equipment or the trolley. There is. However, especially when a skirt is attached to the bogie part, that is, a bogie cover is attached, cooling air is prevented from entering during traveling, and air is trapped inside the parts, which require cooling among the parts attached to the bogie. On the other hand, there is a problem that the cooling action is reduced. Therefore, in order to avoid the above-mentioned problems, a high-speed vehicle that travels at a speed of more than two hundred and several tens has a structure in which the skirt is not attached only to the bogie portion. However, the absence of the cover on the bogie makes it impossible to avoid the generation of wind noise generated by the uneven portion of the bogie, which is a factor that prevents the reduction of noise during traveling of the vehicle.

Japanese Patent Laid-Open No. 1-132462 deals with this kind of problem.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to make it possible to cool bogie parts when a bogie cover is provided in order to reduce noise during vehicle traveling.

[0005]

[Means for Solving the Problems] In order to attach a bogie cover and to introduce cooling air into the bogie portion, it is generally necessary to provide a long and narrow slit in the bogie cover in the front-rear direction of the vehicle to take in the traveling wind. Although effective, if a slit is provided, the wind draft generated by this slit is propagated as noise to the surroundings of the vehicle, which is not always an effective measure as a noise reduction method. Therefore, it is possible to contribute to noise reduction by responding to the flow of wind according to the traveling direction and closing the slits unnecessary for cooling. The present invention focuses on the above points and is provided with an opening / closing slit.

Further, the cooling air discharged from the equipment to be cooled, which has conventionally been forced to blow cooling air, is reused as secondary cooling air for cooling equipment having a heat generation temperature higher than that of the equipment to be cooled. It was done. Further, for a device which uses a lubricating oil and which has an oil cooling means within the range of a single device, the lubricating oil is cooled by a trolley cover part which hits a cooling wind outside the vehicle. In addition, the cooling mechanism is provided only in the equipment that requires cooling so that the area of the slit provided in the truck cover is minimized.

[0007] In all of the above, noise is reduced by eliminating or minimizing the installation of slits that cause noise in the truck cover.

[0008]

In the first embodiment, the opening / closing slits are installed on the bogie cover by hinges, and two slits are provided at the front and rear positions of the bogie where cooling air can act on the bogie depending on the traveling direction of the vehicle, and the position of the hinge. By providing a holding spring or an actuator that can be opened and closed depending on the direction of traveling wind, it is possible to cool the device and reduce noise.

In the second embodiment, the exhaust air used for cooling purpose is connected directly from the exhaust port by the air passage, and is guided to the vicinity of other equipment to be cooled and blown out from it. The cooling air can be used again.

In the third embodiment, a pipe is provided from a device that uses oil as an oil cooling means, and the oil is circulated by connecting it to a cooling fin attached to a truck cover having a high cooling effect. This allows cooling. Further, the truck rotates with respect to the vehicle body at the curved portion, or a spring exists between the vehicle body and the truck, so that the relative positional relationship with the truck cover attached to the vehicle body changes. In order to allow this, some or all of the piping connecting the cooling fin and the device is connected by a flexible hose so that the displacement can be allowed.

In the fourth embodiment, since the cooling air from the outside is applied only to the equipment to be cooled, the slit portion of the carriage cover is connected by the air passage. Further, as in the third embodiment, cooling can be performed by using a flexible wind passage to cope with a change in the positional relationship between the carriage cover and the carriage.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example in which an opening / closing slit 2 is provided in a truck cover 1 and shows a case where a vehicle advances in the direction of a thick arrow. In this case, the open / close slit 2 on the left side is pressed by the presser spring 3 by generating a wind flow path indicated by a thin arrow.
It is possible to open against the spring force of, and in this state, it is possible to cool the necessary cooling equipment attached to the carriage 4. On the other hand, since the opening / closing slit 2 on the right side is behind the carriage 4 in the traveling direction, even if it is opened to take in cooling air, the purpose of cooling is not achieved and it is not necessary to open it. Further, when the opening / closing slit 2 is in the open state, it is a cause of generating noise, and a cause of hindering the purpose of noise reduction. Therefore, with respect to the opening / closing slit 2 on the right side, the hinge 5 and the presser spring 3 are attached in a manner different from those on the left side, and the opening / closing slit 2 is closed by the spring force of the presser spring 3 by constructing so that the flow path of the wind cannot be generated. It makes it possible. The opening / closing slit 2
In the closed state, the outer surface of the vehicle is flush with the trolley cover 1 to prevent wind noise.

FIG. 2 is a view showing the constructional positions of the trolley cover 1, the opening / closing slit 2 and the like as seen from the entire vehicle.

FIG. 3 shows a state in which the vehicle is stopped, and all the opening / closing slits 2 are closed by the spring force of the pressing spring 3.

FIG. 4 is a view showing a state in which the vehicle is traveling in the direction opposite to that in FIG. 1, in which the opening / closing slit 2 on the right side is open and the one on the left side is closed.

According to the above structure, the opening / closing slit 2 can be opened only in the portion required for cooling the equipment depending on the traveling direction of the vehicle, so that the required cooling can be performed and the noise generation can be reduced. Is possible.

FIG. 5 is a view showing another embodiment using the opening / closing slit 2. In this configuration, instead of using the pressing spring 3 close to the hinge 5, an actuator 22 is attached to open and close it arbitrarily. For example, as shown in FIG. 6, the actuator 2 is opened via the controller so as to open only the opening / closing slit 2 of the portion that produces the cooling effect by detecting the traveling direction and close the other portions.
The second operation is performed. In addition to the detection of the traveling direction, the device temperature is detected and the actuator 22 is operated so that the opening / closing slit 2 is opened when the temperature exceeds a predetermined temperature, and traveling in a tunnel that does not cause a problem with noise is detected. Then, it is possible to open all the opening / closing slits 2 in the tunnel.

FIG. 7 shows another embodiment of the shape of the opening / closing slit 2 instead of a plurality of elongated opening / closing slits at one location as shown in FIG. With this configuration, it is possible to reduce the number of parts such as slits, hinges, and actuators, and thus it is possible to reduce manufacturing costs and maintenance costs.

FIGS. 8 and 9 show a main motor in addition to the existing structure for cooling the internal equipment of the main motor 15 normally mounted on the carriage 4 by the cooling air blown by the fan 14 through the cooling air passage 13. The cooling air exhaust port of 15 is set on the end bracket side, that is, on the side opposite to the position of the gear device 8, and the duct 12 is connected to this exhaust port to connect this to the bogie frame 9
And a structure for guiding the air outlet to the vicinity of the wheel 6 with the brake disc. That is, the cooling air of several tens of degrees Celsius level that has cooled the main electric motor 15 is reused to cool the wheels 6 with brake discs having a surface temperature of several hundred degrees Celsius. In this embodiment, since the cooling capacity that is insufficient is provided by installing the trolley cover 1, it is possible to achieve two types of equipment cooling by making a small-scale simple modification to the existing cooling air system.

FIG. 10 shows a cooling fin mounted on the bogie cover 1 capable of cooling the outside air with respect to the gear device 8 and the axle bearing 7 which use a lubricating oil, and which normally employs a cooling means in a single device. 18 shows a structure for cooling oil by circulating oil. Regarding the gear device 8, two hydraulic pipes 19 are connected for oil feeding and returning oil, and these hydraulic pipes 19 are guided by the bogie frame 9 while being supported by the bogie frame 9. Further, from this, a flexible hose 17 is connected to the cooling fin 18. Further, the flexible hose 17 is directly connected from the axle bearing 7 located on the side surface of the bogie and guided to the cooling fins 18 for circulation cooling.

FIG. 11 is a view showing the side surface of the bogie cover 1 including the upper vehicle body 11. A total of three cooling fins for cooling the two sets of axle bearings and one set for cooling the gear unit shown in FIG. I am equipped with 18.

FIG. 12 is a diagram showing the structure of the gear unit 8 to which the circulating oil supply hydraulic pipe 19 is attached. 2 hydraulic pipes 1
Among them, the hydraulic pipe 19 connected to the upper right side surface of the gear unit 8 sends the heated lubricating oil to the cooling fins 18, and the hydraulic pipe 19 connected to the lower part is the cooling fins 18. It returns the cooled lubricating oil. Both hydraulic pipes 19 are fixed by pipe supports 23 at the upper and lower portions of the bogie frame 9, respectively.

FIG. 13 is a diagram showing the positional relationship between the carriage cover 1 and the carriage 4 when the vehicle is located on a curved track. The carriage 4 has an arbitrary angle other than parallel with the carriage cover 1 depending on the curvature of the curved track. Due to the generation of this angle, the carriage 4
As shown in the figure, the left side of the carriage cover 1 is separated from the carriage cover 1, and the right side of the carriage cover 1 is approached. Therefore, the flexible hose 17
The shape becomes closer to a straight line as it goes to the left side, and it becomes a curved shape as it goes to the right side.

By using the flexible hose 17 as described above, it is possible to allow relative displacement due to generation of an angle between the carriage cover 1 and the carriage 4.

FIG. 14 is a plan view showing a structure in which the side surface portion of the axle bearing 7 and the bogie cover 1 are connected by a flexible wind passage 20, and FIG. 15 is a slit 21 connected to the end portion of the flexible wind passage 20. It is a side view which shows the trolley cover 1 and the vehicle body 11 which provided. If the vehicle is located on a curved track,
Similarly to the behavior of the flexible hose 17 in the above, the flexible wind passage 20 can allow relative displacement between the carriage cover 1 and the carriage 4. Further, since only the equipment to be cooled, for example, the axle bearing 7, introduces the outside air from the flexible wind passage 20 and cools it by the convection phenomenon of the outside air, the cooling efficiency with respect to the amount of introduced air is significantly improved, and the slits provided in the truck cover 1 are provided. Two
The size of 1 can be reduced within an appropriate range. Therefore, it is possible to suppress the generation of wind noise at the slit portion, and it is possible to reduce noise.

[0027]

According to the present invention, by providing an opening / closing slit which can be opened / closed by a certain means in the carriage cover portion, noise can be reduced without impairing the cooling function for the equipment in the carriage. Is.

Further, by connecting the duct from the main motor cooling air exhaust port and reusing it for cooling the wheel with the brake disc, it is possible to reduce noise without impairing the cooling function for the brake disc, and to lubricate By circulating oil to the cooling fins attached to the bogie cover to cool it, it is possible to reduce noise without impairing the cooling function for the gear device and axle bearings.

Furthermore, by connecting the equipment to be cooled and the slit installed on the trolley cover by a flexible wind passage, it is possible to minimize the area of the slit and reduce the noise without impairing the cooling function. ..

[Brief description of drawings]

FIG. 1 is a plan view showing an example in which an opening / closing slit is provided in a truck cover according to the present invention.

FIG. 2 is a side view showing configuration positions of a bogie cover and an opening / closing hinge as seen from the entire vehicle according to the present invention.

FIG. 3 is a plan view showing a state in which the vehicle is stopped in an example in which an opening / closing slit is provided in the truck cover according to the present invention.

FIG. 4 is a plan view when the vehicle is traveling in a direction opposite to that in FIG.

FIG. 5 is a plan view showing another embodiment using the opening / closing slit according to the present invention.

FIG. 6 is a flowchart showing a system for controlling opening / closing of the actuator shown in FIG.

FIG. 7 is a side view of a vehicle showing an embodiment of another shape of the opening / closing slit according to the present invention.

FIG. 8 is a plan view of a duct from the main motor cooling air outlet to the brake disc according to the present invention.

9 is a side view of FIG.

FIG. 10 is a plan view showing a structure in which cooling fins are provided on the carriage cover according to the present invention to perform cooling by circulating oil.

FIG. 11 is a side view of a vehicle in which a cooling fin is provided on a bogie cover according to the present invention.

FIG. 12 is a side view showing a gear device to which a hydraulic pipe according to the present invention is attached.

FIG. 13 is a plan view corresponding to FIG. 10 when the vehicle is located on a curved track.

FIG. 14 is a plan view showing a structure in which an axle bearing according to the present invention and a slit provided in a bogie cover are connected by a flexible wind passage.

15 is a side view of a vehicle adopting the structure of FIG.

[Explanation of symbols]

1 ... Bogie cover, 2 ... Open / close slit, 3 ... Presser spring, 4
… Cars, 5… Hinges, 6… Wheels with brake discs, 7
... Axle bearing, 8 ... Gear device, 9 ... Bogie frame, 10 ... Track,
11 ... Car body, 12 ... Duct, 13 ... Cooling air passage, 14 ... Fan, 15 ... Main motor, 17 ... Flexible hose, 1
8 ... Cooling fins, 19 ... Hydraulic pipes, 20 ... Flexible wind passages, 2
1 ... Slit, 22 ... Actuator, 23 ... Pipe support.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Michio Sebata 502 Jinritsucho, Tsuchiura-shi, Ibaraki Prefecture Hiritsu Seisakusho Co., Ltd.

Claims (4)

[Claims] 1. A vehicle characterized in that an opening / closing slit which can be opened and closed by a fixed means is provided on a bogie cover portion. 2. One end is connected to the main motor cooling air outlet,
A vehicle characterized in that a duct whose other end is opened close to a sliding surface of a brake disc is installed in a bogie frame. 3. A cooling fin is installed on the trolley cover part toward the outside of the vehicle, one end of a flexible hose is connected to the cooling fin, and the other end is connected to a trolley device that uses lubricating oil to cool the lubricating oil. A vehicle characterized by being circulated to the vehicle. 4. A vehicle characterized in that one end of a flexible wind passage is connected to an axle bearing portion of a bogie and the other end is connected to a bogie cover, and a slit is provided in the bogie cover portion of the connecting portion.