KR20160109224A

KR20160109224A - Device for Alarming Overheat of Running Device in Rail Car

Info

Publication number: KR20160109224A
Application number: KR1020150033258A
Authority: KR
Inventors: 노인환
Original assignee: (주)로콤
Priority date: 2015-03-10
Filing date: 2015-03-10
Publication date: 2016-09-21
Also published as: KR101679335B1

Abstract

The present invention relates to an overheating alarm device for a rolling-stock vehicle driving apparatus, which can detect and prevent damage or breakage of parts related to a traveling-related device by visually confirming an overheating phenomenon abnormally occurring in a rolling- . An overheat alarm device (1) according to the present invention comprises a hollow internal space (11), an inlet (12) formed at one side of the internal space (11) A housing 10 formed of a material having a high thermal conductivity; A notification ribbon 20 of sufficient length, which is easily stored in the inner space 11 in a state where it is fixed to the housing 10 at one end; A projectile 30 fixed to the other end of the notification ribbon 20 and accommodated in the inner space 11 and causing the announcement ribbon 20 to be released out of the inner space 11 when it is fired from the inner space 11; An elastic body 40 for providing an elastic force to cause the projectile 30 of the inner space 11 to be emitted to the outside through the inlet 12; When the housing 10 is heated abnormally due to abnormally overheating of the heat generating portion and the inlet 12 is blocked so that the projectile 30 is held in the inner space 11 while overcoming the elastic force stored in the elastic body 40, A melting plug (50) for melting the projectile (30) to be discharged to the outside through the inlet (12) by the elastic force of the elastic body (40); .

Description

[0001] The present invention relates to a device for alarming overheating of a railroad vehicle traveling device,

The present invention relates to a railway vehicle traveling apparatus, and more particularly, to a railway vehicle traveling apparatus capable of visually confirming an overheating phenomenon abnormally occurring in a railway vehicle traveling apparatus, so that damage or breakage of a traveling apparatus- To an overheat alarm device of a railway vehicle traveling apparatus.

For example, a traveling device that generates driving power in an electric railway vehicle using electricity as a power source includes an electric motor that generates rotational force by electricity, a gear box that decelerates the rotation speed of the electric motor, An axle (a wheel shaft) having an axle box (journal box) that rotates integrally with the coupling, and a wheel integrally rotating with the axle.

10 is a schematic perspective view of the electric rolling-stock vehicle traveling device. And includes a motor 110, a gear box 120, an axle 130, a wheel 140, a journal box 150, a spring 160, a transom 170, a center pivot 180, and the like.

The gear box 120 serves to decelerate the rotational speed of the electric motor 110 rotating at a high speed by a reduction ratio of the small gear and the large gear. The gear box 110 includes bearings for smooth gear rotation Many components are adapted for high-speed rotation environments.

For example, in the case of a roller bearing applied to a small gear of the gear box 110, there is a possibility that an abnormal situation such as a deviation from a maximum permissible flow rate due to vibrations or shocks generated during operation, a lack of lubricating oil, It may be damaged by excessive heat, and broken pieces of the damaged bearing may cause breakage of the small gear and the large gear, and eventually the gearbox may be stuck.

In the case of a high-speed electric railway vehicle such as a high-speed train, an electronic thermal sensor system is installed so that the sensor can detect the abnormality of the gearbox in advance. However, in the case of a general electric railway vehicle such as a subway or a train, There is a limit that can only be checked to check the amount of lubricating oil in the oil level system at the time of daily inspection except for the period of regular period which is recommended for a period (for example, 3 to 6 years).

The above-mentioned problem of overheating that may occur in the gear box 110 may also occur in the journal box 150 supporting the axle.

As an example of the conventional technology relating to the overheat detection of a railway vehicle traveling apparatus known so far, an apparatus for checking the bearing temperature on the railroad vehicle diesel electric locomotive on the railway vehicle diesel locomotive is disclosed in Korean Registered Utility Model No. 20-383895 (published on May 10, 2005) A technique has been proposed in which the overheating state of the gear box can be confirmed by visually confirming the discoloration of the temperature sensing paint by painting or attaching a temperature sensing paint on the surface of the cover (bearing cover).

However, in the case of the conventional art, it is difficult to visually confirm the position of the bearing cover, which is a portion for painting or attaching the temperature sensing paint, to the visual field due to other structures, The foreign substance contaminates the surface of the temperature sensing paint, so that even if the temperature sensing paint is discolored due to overheating, it can not be visually confirmed.

An object of the present invention is to solve the problems of the prior art relating to visually confirming an overheating phenomenon occurring in an abnormal situation in a railway vehicle traveling apparatus, Irrespective of the phenomenon that various pollutants generated during operation are adhered to the overheated area, when abnormal overheating occurs in the traveling device of the railway car, it is visually and reliably informed to the manager so that the damage And to provide an overheat alarm device for a rolling-stock vehicle traveling apparatus which can reliably detect and prevent breakage at an early stage.

According to the present invention, there is provided an overheating alarm apparatus for a railway vehicle traveling apparatus.

An overheat alarm device of a railway vehicle traveling device according to the present invention includes a housing, a notification ribbon, a projectile, an elastic body, and a melting plug.

The housing includes a hollow internal space, an inlet formed on one side of the internal space, and a fixing part formed on the other side so as to be fixed to a heat generating part where heat is generated in the traveling device, and is formed of a material having high thermal conductivity.

The notification ribbon is a ribbon member of a sufficient length that is easily accommodated in the inner space in a state where one end is fixed to the housing.

The projectile is fixed to the other end of the notification ribbon and is accommodated in the inner space, and when the light is fired from the inner space, the notification ribbon is released out of the inner space.

The elastic body provides an elastic force to cause the projectile of the inner space to be emitted to the outside through the inlet.

The melting plug prevents the elastic force stored in the elastic body and blocks the inlet so that the projectile is retained in the inner space. The melted plug is melted when the housing is abnormally overheated due to abnormally overheating of the heating part, And is discharged to the outside through the inlet by the elastic force of the elastic body.

The projectile may include a ribbon receiving space in which the notification ribbon is received and an arrow-shaped protrusion that is embedded in the melt plug.

The housing may include a latching portion formed at the inlet to which the melting plug is mounted and preventing the unintentional disengagement of the melting plug.

The fixing portion may be bolted to the heat generating portion.

The fixing portion may be formed at a horizontal or right angle with respect to the inner space.

The forming direction of the fixing portion in the housing may be formed in a direction in which the inlet of the housing is oriented so that the projectile can be fired as smoothly as possible.

The housing may be formed of copper or a copper alloy having a high thermal conductivity.

The melting plug may be formed of a Bi-Pb-Sn-Cd alloy.

A quadrangular or hexagonal bolt portion may be formed outside the housing.

The inner space of the housing can be formed in a cylindrical shape.

The notification device according to the present invention is characterized in that, when abnormal overheating occurs in a railway vehicle traveling device, the melting plug is melted by the heat conducted through the housing and released from the inlet of the housing, whereby the projectile The notification ribbon stored in the housing is dangled downward from the housing while being fired to the outside of the housing, and the manager can easily visually confirm the exposed notification ribbon, so that the overheat problem It is possible to prevent further serious damage or breakage.

1 is a perspective view of an exemplary notification device according to the present invention,
2 is an exploded perspective view of an exemplary notification device according to the present invention,
3 is a cross-sectional view of an exemplary notification device according to the present invention,
4 is a partially cutaway perspective view of an exemplary notification device according to the present invention,
5 is a usage state view of an exemplary notification device according to the present invention,
6 is a use state of an exemplary notification device according to the present invention,
7 is a perspective view of another exemplary notification device according to the present invention,
8 is an exploded perspective view of another exemplary notification device according to the present invention,
9 is a cross-sectional view of an exemplary notification device according to the present invention,
10 is a schematic view of a traveling device showing an example of the installation position of the notification device according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an overheat alarm device of a railway vehicle traveling apparatus according to the present invention will be described in detail with reference to the accompanying drawings. The following examples are illustrative of the present invention but are not intended to limit the scope of the invention.

The overheat alarm device 1 of the railway vehicle traveling apparatus according to the present invention is a railway vehicle traveling apparatus 100 of the railway vehicle as exemplified in Fig. 10, for example, a gear box 120 (see Fig. 5) which is likely to overheat in an abnormal situation And a journal box 150 (see FIG. 6), and basically includes a housing 10, a notification ribbon 20, a projectile 30, an elastic body 40 and a melting plug 50.

The housing 10 is a main body to which other components of the present invention are mounted and also has a function of transmitting heat generated from a heat generating part (for example, a gear box or an axle box of a traveling device) to the melting plug 50 .

The housing 10 is provided with an inner space 11 for mounting the notification ribbon 20, the projectile 30, the elastic body 40 and the melting plug 50. The inner space 11 And a fixing part 13 for fixing the housing 10 to a heat generating part where overheating is manifested in the traveling device 100 is formed at the other side of the housing 10 Respectively.

The housing 10 is formed of a material having a high thermal conductivity, for example, copper (copper) or a copper alloy, since the heat generated in the heat generating portion of the traveling device 100 must be transmitted to the melting plug 50 can do.

The fixing portion 13 may be formed with a gear 13a so as to be bolted to the heat generating portion of the traveling device. 5 and 6, the notification device 1 of the present invention is installed in the gear box 120 or the journal box 150 of the traveling device 100, which is a typical heat generating part, A bolt hole 101 formed for fastening a bolt hole 101 for fastening the bolt hole 101 to the bolt hole 101 for fastening the bolt hole 101 for easy separation of the bearing cover, Thus, it is possible to securely fix the heat generating portion to the heat generating portion.

A bolt portion 15 such as a quadrangle or a hexagonal portion such that a tool (e.g., a wrench) can be used when the superheated alerting device 1 of the present invention is bolted to the bolt hole 101, Can be formed.

The inner space 11 can be formed in a cylindrical shape so that the notification ribbon 20, the projectile 30, the elastic body 40, and the melting plug 50 are space-efficiently mounted and smoothly operated.

The housing 10 shown in Figs. 1 to 4 has a length of approximately 40 mm in the vertical direction, approximately 28 mm in the lateral direction, approximately 18 mm in the inner space 11, and approximately 27 mm in the length of the inner space But is not limited thereto.

The direction in which the fixing portion 13 is formed in the housing 10 is not particularly limited and it is easy to mount and separate the alarm device 1 of the present invention by using a wrench at the mounting portion of the traveling device 100, The direction in which the inlet 12 of the housing 10 is oriented so that the projectile 30 can be fired as smoothly as possible without interruption is preferable.

For example, the forming direction of the fixing portion 13 is formed in a direction elongated in the opposite direction to the direction of the inlet 12 (i.e., the direction opposite to the direction in which the projectile is fired), as shown in Figs. Can be formed in a direction orthogonal to the direction of the inlet 12 as shown in FIGS. 7 to 9, and can be formed in other directions as well as in various directions, It can be appropriately selected and used according to the environment in which the apparatus 1 is mounted.

The notification ribbon 20 can be folded and folded in a state that it can be easily loosened in the inner space 11 of the housing 10 which is a non-wide space, and when it is exposed to the outside, It is preferable that the ribbon be a narrow and long strip dyed in a fluorescent color of a tough material which is not easily cut.

One end of the notification ribbon 20 is fixed to the housing 10, and the projectile 30 to be described later is fixed to the other end. One piece 21 is used to fix one end of the notification ribbon 20 to the housing 10 and the other piece 21 to be used as the other piece 21 of the notification ribbon 20 And the other end is fixed to the projectile 30, but the present invention is not limited thereto.

4, the projecting body 30 is accommodated in the internal space 11 in a state where the other end of the announcement ribbon 20 is fixed, and the projecting body 30 is projected from the internal space 11 to the outside The notification ribbon 20 of the inner space 11 is loosened out of the inner space 11 as shown in Fig.

The illustrated embodiment is characterized in that the ribbon accommodating space 21 is formed in the projectile 30 so that the announcement ribbon 20 accommodated in the inner space 11 is accommodated in the ribbon accommodating space 21, Shaped protrusion 32, but the present invention is not limited thereto.

However, if the ribbon accommodating space 21 is formed in the projectile 30 and the notification ribbon 20 is accommodated in the ribbon accommodating space 21, the volume of the internal space 11 and the housing 10 can be minimized, Shaped projections 32 can firmly fill the tip end of the projectile 30 with the molten plug 50 and can prevent the projectile 30 from leaking when the molten plug 50 is melted It can be easily fired through the inlet 12 of the inner space 11, which is preferable.

The projectile 30 can be made of a material having a considerable weight (for example, copper) so that the notched ribbon 20 is loosely pulled down under the load of the projectile 30.

The elastic body 40 is a member that provides an elastic force to cause the projectile 30 accommodated in the inner space 11 to be emitted to the outside of the housing 10 through the inlet 12. [

When the warning device 1 of the present invention is installed in the traveling device 100 of the railway car, the entrance 12 may be directed downward so that the projectile 30 falls by gravity naturally. However, When the alarm device 1 of the present invention is installed in the journal box or the bolt hole formed in the gear box, the alarm device 1 is positioned horizontally, so that the release of the projectile 30 can be unstable It is preferable that the projectile 30 is fired by a forced force so that the projectile 30 is fired even when the melt plug 50 is not completely melted and melted to some extent. ) Is a member that provides elastic force which is a force for such a force.

In the illustrated embodiment, the jaw 33 is formed under the arrow-shaped protrusion 32 and the compression spring as the elastic body 40 is compressed between the jaw 33 and the housing 10 to mount the projectile 30, So that the elastic force is applied.

For example, in the case of a heating region of a railway vehicle driving apparatus 100, a temperature of about 90 ° C or lower is managed as a normal temperature. However, the present inventor measured the actual average surface temperature for a heating region during normal operation According to the results, it was found that the temperature did not exceed about 50 캜 due to the cooling effect by the atmosphere although it varied according to the season.

Based on the temperature of the above-mentioned exothermic region, it can be said that the exothermic region is in a normal state when it does not exceed about 70 DEG C, and when it exceeds about 70 DEG C, abnormal superheat occurs. 50), and the Bi-Pb-Sn-Cd alloy used for a fire alarm or the like is an alloy having a melting point of about 71 DEG C and can be applied to the present invention Which is an example of a preferred exemplary melting plug 50. Of course, it is possible to set the temperature at which the overheat is a standard to be set at a different temperature, for example, 90 DEG C or lower, and use another alloy having a melting point corresponding thereto as a material of the melting plug 50. [

The melt plug 50 is a kind of stopper which overcomes the stored elastic force of the elastic body 40 and blocks the inlet 12 such that the projectile 30 is held in the inner space 11. [ That is, the melting plug 50 maintains a solid state when the heat generating portion maintains a normal temperature and the housing 10 is at a normal temperature (for example, approximately 70 ° C or lower), and the projectile 30 is held in the inner space 11 However, if the heating unit is abnormally overheated and the housing 10 abnormally heats and exceeds the melting temperature, the melted material gradually melts. When the melting plug 50 starts melting, the projectile 30 is moved to the inner space 11, The projecting body 30 is fired to the outside of the housing 10 through the inlet 12 by the elastic force of the elastic body 40. As a result, the fusion force of the fusion plug 50 with respect to the housing 10 is reduced.

When the projectile 30 is fired from the housing 10 as shown in Fig. 5, the notification ribbon 20 whose other end is restrained to the projectile 30 is released from the housing and hangs the projectile 30 at the other end And is extended downward from the housing 10 to be exposed to the visual field.

Then, the manager can find the exposed notification ribbon 20, and recognizes that the traveling device 100 equipped with the notification device 1 of the present invention has abnormal overheating, and performs necessary maintenance measures .

Basically the melting plug 50 is mounted on the inlet 12 of the housing 10 to block the launching of the projectile 30 but when the coupling force between the melting plug 50 and the housing 10 is lowered, The projectile 30 may be unintentionally fired even in the absence of abnormal overheating. In order to prevent this, the recess 12 of the housing 10, for example, The alloy of the molten plug 50 is allowed to flow into the engaging portion 14 so that the projecting body 30 is prevented from being fired due to a decrease in the bonding force between the molten plug 50 and the housing 10, can do. In the illustrated embodiment, the latching portion 14 is formed as a recessed groove in the housing 10, but it is natural that the latching portion 14 may be formed as a projection.

1: Notification device of the present invention 10: Housing
11: inner space 12: entrance
13: fixing part 14:
15: Bolt part 20: Notification ribbon
21: piece 30: projectile
31: ribbon receiving space 32: arrow-shaped projection
33: chin 40: elastic body
50: Melting plug

Claims

(12) formed at one side of the internal space (11) and a fixing portion (13) formed at the other side so as to be fixed to a heat generating portion where overheat is expressed in the traveling device (100) A housing 10 formed of a material having a high thermal conductivity;
A notification ribbon (20) of sufficient length that one end is fixed to the housing (10) and is easily stored in the inner space (11);
And is fixed to the other end of the announcement ribbon 20 and accommodated in the inner space 11 so that the announcement ribbon 20 is released out of the inner space 11 when fired from the inner space 11 Projectile 30;
An elastic body (40) for providing an elastic force to cause the projectile (30) of the inner space (11) to be emitted to the outside through the inlet (12); And
The inlet 12 is blocked so that the projectile 30 is held in the inner space 11 while overcoming the elastic force stored in the elastic body 40 and the housing 10 is abnormally heated A melting plug 50 for melting the projectile 30 to be discharged to the outside through the inlet 12 due to the elastic force of the elastic body 40;
And an overheat alarm device for the railway vehicle traveling device.

The method according to claim 1,
The projectile 30 includes a ribbon receiving space 31 in which the notification ribbon 20 is received and an arrow-shaped protrusion 32 that is embedded in the melt plug 50;
The housing 10 includes a latch 14 formed at the inlet 12 to which the melt plug 50 is mounted to prevent unintentional release of the melt plug 50;
The fixing portion 13 is bolted to the heat generating portion and is formed at a horizontal or right angle with respect to the internal space 11. The forming direction of the fixing portion 13 in the housing 10 is, Characterized in that the inlet (12) of the housing (10) is oriented so that the projectile (30) can be fired as smoothly as possible.

3. The method according to claim 1 or 2,
The housing 10 is formed of copper or a copper alloy having a high thermal conductivity;
The melting plug 50 is formed of a Bi-Pb-Sn-Cd alloy;
A bolt portion of a quadrangular or hexagonal shape is formed outside the housing 10;
Characterized in that the internal space (11) of the housing (10) is a cylindrical shape.