JP2020083254A - Vehicle body lifting method for railway vehicle - Google Patents

Abstract

To lift an air spring and a vehicle body together so as to leave the air spring on the vehicle body when the vehicle body is removed from a truck in a railway vehicle using the air spring having an outer cylinder, which is not fixed to the vehicle body.SOLUTION: A vehicle body 2 of a railway vehicle 1 in which an outer cylinder spigot 4d of an air spring 4 is inserted in a fitting part 2a of the vehicle body 2 is lifted in the vehicle body lifting method. A liner 5 having at least two engagement holes 5b is inserted between an inner cylinder 4a of the air spring 4 and a truck 3 or a bolster 11. Thereafter, the vehicle body 2 is lifted while the engagement hole 5b of the liner 5 is connected to the vehicle body 2 by a connection member 6 and the air spring 4 is suspended from the vehicle body 2.SELECTED DRAWING: Figure 1

Description

The present invention, in a railway vehicle using an air spring of a type in which the outer cylinder of the air spring is not fixed to the vehicle body, hoists the air spring together with the vehicle body so that the air spring remains on the vehicle body when the vehicle body is removed from the bogie. It is about the method.

In a railroad vehicle, an air spring arranged between the car body and the bogie absorbs vibration transmitted to the car body side and the bogie side.

The air spring is composed of an outer cylinder located on the vehicle body side, an inner cylinder located on the bogie side, and a diaphragm provided between the outer cylinder and the inner cylinder (see paragraph 0002 of Patent Document 1). ..).

There are the following three modes of mounting the outer cylinder portion of the air spring to the vehicle body.
(1) Fixing to the vehicle body with bolts (see paragraphs 0020 and 0022 of Patent Document 2).
(2) One in which the outer cylinder spigot provided in the central portion of the outer cylinder is merely inserted into a fitting portion provided in the vehicle body and the vehicle body and the air spring are not constrained in the height direction (Patent Document 2, paragraph 0035, See paragraph 0003 of Patent Document 3.).

(3) In addition to the mounting mode of (1), the bottom plate of the inner cylinder is extended in the vehicle front-rear direction with respect to the body of the inner cylinder, and holes are provided in the extended portion of the bottom plate one by one. A spring that can be hung on the vehicle body.

Among the attachment modes of the air spring to the vehicle body, the one that is fixed with the bolt of (1) is an air spring in which the diaphragm is punctured when the vehicle body is lifted to remove it from the bogie during derailment recovery training. Is hung with the car body. At that time, the outer cylinder of the air spring is stable without changing its relative position to the vehicle body. Therefore, even when the vehicle body and the bogie are separated during the derailment recovery training, the outer cylinder spigot does not come off from the fitting portion of the vehicle body.

On the other hand, when the outer cylinder spigot of the air spring is simply inserted into the fitting part of the vehicle body of (2), when the vehicle body is lifted to remove the vehicle body from the dolly, the air with the diaphragm punctured The spring remains on the dolly side. In this case, when the hoisted vehicle body is placed on the bogie after the bogie is restored on the rail, the outer cylinder spigot of the air spring and the vehicle body are fitted so that the fitting portion of the vehicle body fits well with the outer cylinder spigot of the air spring. It is necessary to check the fitting part of and adjust the position. In particular, as shown in FIG. 8, the region where the outer cylinder spigot 4d of the air spring 4 fits into the fitting portion 2a of the vehicle body 2 is inserted into the insertion portion 3a provided on the carriage 3, for example, by the inner cylinder spigot 4b of the air spring 4. Since the area is larger than the area, the situation that the outer cylinder spigot 4d of the air spring 4 is fitted into the fitting portion 2a of the vehicle body 2 is difficult to visually recognize. Further, since the liner is usually inserted under the air spring, the outer cylinder spigot is shorter than the inner cylinder spigot, which is another cause that is difficult to visually recognize. In FIG. 8, reference numeral 4a denotes an inner cylinder of the air spring 4, 4c denotes an outer cylinder of the air spring 4, and 4e denotes a diaphragm of the air spring 4.

Further, in the case of the air spring that can be hung on the vehicle body of (3), the air spring with the diaphragm punctured can be lifted up together with the vehicle body when the vehicle body is removed from the dolly. However, since it is necessary to extend the bottom plate of the inner cylinder of the air spring in the vehicle front-rear direction and to provide a hole in the extended portion of the bottom plate, it is not applicable in the case of an air spring having no hole in the bottom plate of the inner cylinder. was there.

Japanese Patent No. 2817509 JP, 2005-152154, A Japanese Unexamined Patent Application Publication No. 2015-147493

The problem to be solved by the present invention is, in the case of an air spring of a type in which a vehicle body and an air spring are connected only by inserting an outer cylinder spigot into a fitting portion of the vehicle body, for example, at the time of derailment recovery training, the suspended vehicle body is placed on a rail. When the vehicle is mounted on the restored bogie, the fitting part of the vehicle body does not fit well into the outer cylinder spigot, which requires time.

The present invention relates to a railway vehicle in which an outer cylinder spigot of an air spring is inserted into a fitting portion of a vehicle body, and when the vehicle body is lifted together with the air spring when the vehicle body is removed from the bogie, the outer cylinder of the vehicle body and the air spring is The purpose is to stabilize the relative positional relationship with.

In order to achieve the above purpose,
The present invention is
When lifting the body of a railway vehicle with the outer cylinder spigot of the air spring inserted in the fitting part of the body,
After inserting a liner having at least two engaging portions between the inner cylinder of the air spring and the carriage or the bolster, the air spring is suspended from the vehicle body by connecting the engaging portion of the liner and the vehicle body with a connecting member. The main feature is to lift the car body.

According to the present invention, a liner having at least two engaging portions is inserted between an inner cylinder of an air spring and a bogie when a vehicle body of a railway vehicle in which an outer cylinder spigot of an air spring is inserted into a fitting portion of the vehicle body is lifted. After that, the air spring is suspended from the vehicle body by connecting the engaging portion of the liner and the vehicle body with a connecting member, and the connecting member that connects the vehicle body and the air spring is tightly bound. Keep the outer cylinder of the air spring in close contact with the vehicle body so that it does not come off. Therefore, the relative positional relationship between the vehicle body and the outer cylinder of the air spring is stable, and when mounting the hoisted vehicle body on the dolly, it takes time to insert the inner cylinder spigot provided in the inner cylinder of the air spring into the insertion portion of the dolly. There is no need.

In the present invention, when the liner is provided with three or more engaging portions, the air spring is located at a position where the suspended air spring is stable when the air spring is suspended, that is, inside the outline connecting the provided engaging portions. If the center of gravity is positioned so that the air spring is more stable.

The engaging portion in the present invention may be an engaging hole or an eyebolt screwed into a screw provided in the engaging hole as long as it can be connected to the connecting member.

In the present invention, when it is difficult to connect the connecting member to the engaging portion, a gap for passing the connecting member connecting the engaging hole of the liner and the vehicle body is provided on the truck or bolster side that abuts the liner. Alternatively, a gap may be provided on the upper surface side of the trolley that faces the engagement hole of the liner.

In the present invention, when hoisting the vehicle body, the liner having at least two engaging portions is inserted between the inner cylinder of the air spring and the carriage or bolster. Then, the engagement member and the vehicle body are connected by a connecting member, and the air spring is suspended from the vehicle body.The connecting member that connects the vehicle body and the air spring is tightly bound, and the outer cylinder spigot of the air spring is attached from the fitting portion of the vehicle body. Place the outer cylinder of the air spring in close contact with the vehicle body so that it will not come off. Therefore, the relative positional relationship between the suspended vehicle body and the outer cylinder of the air spring is stable. Further, since the vehicle body in which the outer cylinder spigot of the air spring is inserted in the fitting portion of the vehicle body is placed on the trolley, the workability of inserting the inner cylinder spigot provided in the inner cylinder of the air spring into the trolley insertion portion is improved. It doesn't take time.

FIG. 3 is a diagram illustrating a method for lifting a vehicle body of a railway vehicle of the present invention, in which a first liner is inserted between a bogie and an inner cylinder of a flat air spring, and the first liner and the vehicle body are connected by a connecting member. It is the figure which showed the state. It is the figure which looked at Drawing 1 from the upper part. (A) is sectional drawing in the eyebolt attachment position which looked at the 2nd liner from the side surface, (b) is a figure similar to FIG. 1 at the time of using a 2nd liner. (A) is sectional drawing of the side direction which passes along the engaging hole of a 3rd liner, (b) is a figure similar to FIG. 1 when a 3rd liner is used. It is a figure explaining the vehicle body suspension method of the railway vehicle of this invention, Comprising: The figure which showed the state which lifted the vehicle body 10-20 mm from the state of FIG. It is a figure similar to FIG. 2 explaining the other insertion state of a 1st liner. It is a figure similar to FIG. 1 explaining the other example of the vehicle body lifting method of the railway vehicle of this invention. After the outer cylinder spigot is inserted into the fitting part provided on the vehicle body, the vehicle body of the railway vehicle using the air spring of the type that does not constrain the vehicle body and the air spring in the height direction is hung up, and then the vehicle body is mounted on the bogie. It is a figure explaining the problem at the time of carrying on.

The present invention relates to a railway vehicle in which an outer cylinder spigot of an air spring is inserted into a fitting portion of a vehicle body, and when the vehicle body is removed from a bogie, the air spring is kept stable in a relative positional relationship between the vehicle body and the outer cylinder of the air spring. The purpose is to lift the car body together with.

Then, the purpose is to insert a liner having at least two engaging portions between the inner cylinder of the air spring and the carriage or bolster at the time of lifting the vehicle body, and then connect the engaging portions of the liner and the vehicle body with a connecting member. It was realized by that.

Hereinafter, a method for lifting a vehicle body of a railway vehicle according to the present invention will be described with reference to the accompanying drawings.
Reference numeral 1 denotes a railway vehicle in which an air spring 4 for supporting a vehicle body 2 is arranged on a bolster 11 provided on a bogie 3, and the air springs 4 are provided at both sides in the vehicle width direction at the center of the bogie 3 in the vehicle traveling direction. Individually arranged.

The air spring 4 is attached to the bolster 11 by inserting an inner cylinder spigot 4b provided at the center of the inner cylinder 4a located on the bolster 11 side into an insertion portion 11a provided on the bolster 11. ..

On the other hand, the attachment of the air spring 4 to the vehicle body 2 is performed by inserting the outer cylinder spigot 4d provided in the central portion of the outer cylinder 4c positioned on the vehicle body 2 side into the fitting portion 2a provided on the vehicle body 2. It is being appreciated.

According to the present invention, the rail vehicle 1 does not restrain the vehicle body 2 and the air spring 4 in the height direction by only mounting the air spring 4 on the vehicle body 2 by inserting the outer cylinder spigot 4d into the fitting portion 2a. Is intended for.

The present invention is, for example, a method of hoisting the vehicle body 2 of the railway vehicle 1 when removing the vehicle body 2 from the bogie 3 in the railway vehicle 1 that does not restrain the vehicle body 2 and the air spring 4 in the height direction. The method of the present invention will be described in detail.

A liner 5 is inserted between the inner cylinder 4a of the air spring 4 and the bolster 11 for adjusting the height of the air spring 4. In the present invention, the liner 5 is extended and an engaging portion is provided at the extended portion. When removing the vehicle body 2 from the carriage 3, the vehicle body 2 and the liner 5 can be lifted by the connecting member 6.

The liner 5 shown in FIG. 1 has extending portions 5a extending from the inner cylinder 4a of the air spring 4 in the front and rear, and two engaging portions on each side of the extending portion 5a, a total of four engaging portions. The hole 5b is provided, and as shown in FIG. 2, the liner 5 is inserted so that the extending portion 5a is located in the front-rear direction of the carriage 3.

Next, as shown in FIG. 1, the engagement hole 5b of the liner 5 and the vehicle body 2 are connected by a connecting member 6, the air spring 4 is suspended from the vehicle body 2, and the vehicle body 2 and the air spring 4 are connected. The member 6 is tightly bound, and the outer cylinder 4c of the air spring 4 is in close contact with the vehicle body 2 to the extent that the outer cylinder spigot 4d of the air spring 4 does not come off from the fitting portion 2a of the vehicle body 2. In FIG. 1, eyebolts 7 are attached at four positions around the position where the air spring 4 is attached on the rear surface side of the vehicle body 2, and the eyebolts 7 and the engaging holes 5b of the liner 5 are connected to a connecting member 6, for example, a turn. It shows the one connected with a buckle jig.

If it is difficult to connect the flat liner 5 shown in FIG. 2 to the connecting member 6, as shown in FIG. 3A, a screw is provided in the engagement hole 5b, and the engagement provided with the screw is performed. The eyebolt 5c may be screwed into the hole 5b. By doing so, as shown in FIG. 3B, the connection member 6 can be easily connected.

Further, instead of the one shown in FIG. 3, as shown in FIG. 4, the connecting member 6 is passed between the end of the extending portion 5a of the liner 5 facing the bolster 11 and the engaging hole 5b. There may be provided a gap 5d for this purpose.

After the above state, the vehicle body 2 is further lifted by the crane. When hoisting the dolly 3 together with the vehicle body 2, the pin jig 10 is attached to the hoisting metal fitting 8 attached to the back surface of the vehicle body 2, and the hook of the crane is attached to the wire 9 connected to the pin jig 10. It does by combining.

According to the method of the present invention described above, as shown in FIG. 5, the vehicle body 2 and the outer cylinder 4c of the air spring 4 can be lifted while maintaining the relative positional relationship. Therefore, when the hoisted vehicle body 2 is placed on the trolley 3, the inner cylinder spigot 4b is inserted into the insertion portion 11a of the bolster 11 rather than the outer cylinder spigot 4d is fitted into the fitting portion 2a of the vehicle body 2. The vehicle body 2 can be mounted on the carriage 3.

It goes without saying that the present invention is not limited to the above-mentioned examples, and the embodiments may be appropriately changed within the scope of the technical idea described in each claim.

For example, in the embodiment, the liner 5 is provided with four engaging portions (the engaging holes 5b or the eyebolts 5c), but at least two engaging portions may be provided. At this time, when three or more engaging parts are provided, it is desirable that the center of gravity of the air spring 4 is located inside the outline connecting the engaging parts.

Further, in the embodiment, the liner 5 is inserted so that the extending portion 5a is located in the front-rear direction of the vehicle. However, as shown in FIG. 6, the extending portion 5a is located in the vehicle width direction. You may insert the liner 5 like this.

Instead of providing the gap 5d in the liner 5 as shown in FIG. 4, a gap 11b is provided on the upper surface side of the bolster 11 facing the engagement hole 5b of the liner 5 as shown in FIG. Is also good.

Further, in the embodiment, the case of the bolster-equipped trolley has been described, but it goes without saying that the method of the present invention can be applied not only to the bolster-equipped trolley but also to a bolsterless trolley. In the case of a bolsterless carriage, the insertion portion for inserting the inner cylinder spigot 4b of the air spring 4 is provided in the carriage 3 as described in FIG. Moreover, the gap shown in FIG.

1 railway vehicle 2 vehicle body 2a fitting portion 3 bogie 3a insertion portion 4 air spring 4a inner cylinder 4b inner cylinder spigot 4c outer cylinder 4d outer cylinder spigot 5 liner 5b engagement hole 5c eyebolt 5d gap 6 connecting member 11 bolster 11a insertion portion 11b Gap

Claims (6)

When lifting the body of a railway vehicle with the outer cylinder spigot of the air spring inserted in the fitting part of the body,
After inserting a liner having at least two engaging portions between the inner cylinder of the air spring and the carriage or the bolster, the air spring is suspended from the vehicle body by connecting the engaging portion of the liner and the vehicle body with a connecting member. A method for lifting a vehicle body of a railway vehicle, which comprises lifting the vehicle body. When the liner is provided with three or more engaging portions, the liner is provided so that the center of gravity of the air spring is located inside the outline connecting the engaging portions. The method for hoisting a railroad vehicle as described. The vehicle body lifting method for a railway vehicle according to claim 1 or 2, wherein the engagement portion is an engagement hole. The vehicle body lifting method according to claim 3, wherein the engagement portion is an eyebolt screwed into a screw provided in the engagement hole. The vehicle body hoisting method for a railway vehicle according to claim 3, wherein the liner is provided with a gap on the bogie side for allowing a connecting member that connects the engagement hole of the liner and the vehicle body to pass through. The vehicle body lifting method for a railway vehicle according to claim 3, wherein a gap is provided on an upper surface side of the carriage or bolster facing the engagement hole of the liner.

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