RU216811U1 - The body of a railway car for the transportation and storage of goods - Google Patents

Abstract

The utility model relates to ladders placed inside railway cars for the transportation and storage of goods (car bodies) to provide access for service personnel to the inside of the car body, for example, a tank car, a box car or a hopper car, through a manhole when conducting their internal inspection and repair. The proposed utility model can be applied both to newly produced railway cars and to railway cars that were previously put into operation. The technical result is an increase in the passage section of the manhole hatch of a railway car, which does not prevent the penetration of maintenance personnel into the railway car during its internal inspection and repair. The body of a railway car for the transportation and storage of goods, containing an inner surface, a manhole, including a shell having an inner surface close to the shape of an ellipse, an internal ladder with vertical posts interconnected by crossbars, the lower ends of the vertical posts are connected to the inner surface of the body, characterized in that the crossbars are made in the form of broken lines with bends, the shape of which is close to the shape of the bend of the inner surface of the shell, while the upper ends of the vertical posts are rigidly fixed to the inner surface of the shell. 6 w.p. f-ly, 2 ill.

Description

The utility model relates to ladders placed inside railway cars for the transportation and storage of goods (car bodies) to provide access for service personnel to the inside of the car body, for example, a tank car, a box car or a hopper car, through a manhole when conducting their internal inspection and repair. The proposed utility model can be applied both to newly produced railway cars and to railway cars that were previously put into operation.

So, according to GOST R 51689-2000 "Cister cars of main railway lines with a gauge of 1520 mm", clause 4.2.7, in tank cars, manholes must be at least 450 mm in diameter. Therefore, the design of the internal ladder installed in the body of the tank car should not impede the passage and should provide easy access for maintenance personnel inside the tank car. In hopper cars and covered cars, the design of the internal stairs should also provide for the convenience of access to the inside of the cars for service personnel. In addition, in hopper cars and covered wagons containing manholes, previously put into operation, in the design of which an internal staircase was not initially provided, the installation of an internal staircase leads to a decrease in the diameter of the manhole hatch passage. Accordingly, the design of the internal stairs installed in such hopper cars and box cars should not impede the passage and provide easy access for maintenance personnel inside the cars.

The body of a covered freight car is known from the field of technology, containing side walls, a roof, an internal ladder containing guide posts connected to each other by crossbeams, the upper ends of the guide posts are bent to form hooks. Inside the body in its upper part there is a U-shaped bracket rigidly fixed relative to the body; the guide racks in the lower part are rigidly connected to the struts, which, on the other hand, are rigidly connected to the side wall of the body; the bent upper ends of the guide posts are engaged with the middle section of the U-shaped bracket. The U-shaped bracket comprises a middle horizontal section and two end sections, which form an angle of 90° with the middle horizontal section, or possibly an angle slightly greater than 90°. The main thing is that the shape of the U-shaped bracket allows you to fix it relative to the body with extreme sections, and on a horizontal section it allows you to fix the ladder so that it cannot move (slide) along this section. The ladder in the upper part on each side is equipped with limiters made in the form of a plate, each limiter is rigidly connected to the corresponding guide post and its bent end; each limiter is located below the middle section of the U-shaped bracket at a distance L from it, while the distance L between the limiter and the middle section of the U-shaped bracket is chosen by calculation from the condition of possible movement of the stairs in the vertical direction when the car moves. The U-shaped bracket can be rigidly attached to the roof of the body or to a beam fixed on the roof of the body. The spacers are made in the form of rods with bent ends, by means of which the spacers are rigidly attached to the guide posts on one side, and to the side wall of the body on the other side. It is expedient to carry out all rigid connections by welding, as the most reliable form of connection of structural elements experiencing dynamic loads. Limiters provide a rigid connection of the bent end of the racks, preventing possible deformation (extension) of the bent ends when exposed to dynamic loads during the movement of the car (RU 213460 U1, IPC B61D 3/00, IPC E06C 5/00 publ. 09/13/2022).

The disadvantage of the known solution is that the design of the internal stairs and the U-shaped bracket narrow the diameter of the passage section of the hatch-hole of the body of the covered freight car, thereby preventing the penetration of maintenance personnel into the railway car during its internal inspection and repair, resulting in access to the inside of the railway the carriage for the attendants is inconvenient.

The technical problem is the development of the design of the internal staircase of a railway car for the transportation and storage of goods, which provides ease of access for maintenance personnel inside the car during its internal inspection and repair.

The technical result is an increase in the flow area of the railway car manhole, which does not prevent the penetration of maintenance personnel into the railway car during its internal inspection and repair.

The specified technical result is achieved in that the body of a railway car for the transportation and storage of goods contains an inner surface, a manhole, including a shell having an inner surface close to the shape of an ellipse, an internal ladder with vertical posts interconnected by crossbars, the lower ends of the vertical posts connected to the inner surface of the body, the crossbars are made in the form of broken lines, the crossbars are made with bends, the shape of which is close to the shape of the bend of the inner surface of the shell, while the upper ends of the vertical posts are rigidly fixed to the inner surface of the shell.

The internal staircase can be made of alloy.

The internal ladder can be made of aluminum alloy.

The lower ends of the uprights can be welded to the inner surface of the body.

Vertical racks can be made of metal bars.

The inner surface of the shell can be made in a shape close to a circle.

The upper ends of the vertical posts can be rigidly fixed to the inner surface of the shell by welding.

The features of the claimed utility model are:

1. The body of a railway car for the transportation and storage of goods,

2. containing the inner surface,

3. manhole, including

4. shell,

5. having an inner surface,

6. close to the shape of an ellipse,

7. body containing an internal ladder

8. with vertical posts,

9. interconnected crossbars,

10. The lower ends of the uprights are connected to the inner surface of the body, characterized in that

11. the crossbars are made in the form of broken lines with bends,

12. the shape of which is close to the shape of the bend of the inner surface of the shell,

13. in this case, the upper ends of the vertical posts are rigidly fixed to the inner surface of the shell.

Features 1-10 are common with the prototype, features 11-13 are the hallmarks of the utility model.

The design is illustrated by images, where in Fig. 1 shows a top view of the manhole hatch (axonometric projection (isometry)), in Fig. 2 - view of the manhole from above.

The body of a railway car for the transportation and storage of goods 1 contains an inner surface 2. The body of a railway car for the transportation and storage of goods contains a manhole 3. The manhole 3 includes a shell 4 having an inner surface 5 close to the shape of an ellipse. The body of the railway car for transportation and storage of goods 1 also contains an internal ladder with vertical racks 6, which are interconnected by crossbars 7. The lower ends (not shown in the figures) of the vertical racks 6 are connected to the inner surface 2 of the body of the railway car for transportation and storage of goods 1 The upper ends 8 of the vertical posts 6 are fixed on the inner surface 5 of the shell 4 of the manhole 3. The crossbeams 7 are made in the form of broken lines with bends. The shape of the bend of each crossbar 7 is close to the shape of the bend of the inner surface 5 of the shell 4 of the manhole 3.

The presence of bends at the crossbars, close to the shape of the bend of the inner surface of the shell, allows you to increase the flow area of the manhole hatch due to the fact that the rungs of the stairs due to the bend are shifted to the perimeter of the hatch shell, freeing its internal cavity. Fixing the upper ends of the vertical posts to the inner surface of the shell allows you to move them to the perimeter of the hatch shell, freeing its inner cavity. Due to the dynamic loads that occur during the movement of the car, damage is possible at the place where the upper end of the vertical post is attached to the inner surface of the shell and, as a result, the vertical post is displaced into the inner cavity of the hatch shell, which will lead to a narrowing of its passage section. In order to eliminate this defect, the upper ends of the vertical posts are rigidly fixed to the inner surface of the shell, for example, by welding.

The utility model provides that the lower ends of the uprights are connected to the inner surface of the body, for example by welding. This is necessary so that the lower ends of the vertical posts do not move towards the vertical axis of the manhole and do not prevent the penetration of maintenance personnel into the railway car during its internal inspection and repair.

In the body of a railway car for the transportation and storage of goods 1, the inner ladder can be made of an alloy.

In the body of a railway car for transportation and storage of goods 1, the internal ladder can be made of aluminum alloy.

The most technologically advanced implementation of the internal staircase is its implementation from alloys, including aluminum alloy. Since alloys have plasticity due to the metal components that make up their composition, accordingly, the shape of the crossbar made of an alloy, including aluminum alloy, can most accurately repeat the bending of the inner surface of the shell.

In the body of a railway car for transportation and storage of goods 1, the lower ends of the vertical racks 6 can be connected by welding with the inner surface 2 of the body of a railway car for the transportation and storage of goods 1.

In the body of a railway car for transportation and storage of goods 1, the inner surface of the shell 5 can be made in a shape close to a circle, since the circle is a special case of an ellipse.

In the body of a railway car for the transport and storage of goods 1 vertical racks 6 can be made of metal bars.

In the body of a railway car for transportation and storage of goods 1, the upper ends 8 of the vertical posts 6 can be rigidly fixed to the inner surface 5 of the shell 4 by welding.

Usage example.

The body of a railway car for the transportation and storage of goods contains an inner surface, a manhole, including a shell having an inner surface made in the shape of a circle, an inner ladder with vertical posts interconnected by crossbars in the amount of 8 pieces, the lower ends of the vertical posts are connected to the inner surface of the body by welding, the upper ends of the vertical struts are rigidly fixed to the inner surface of the shell by welding, the crossbars are made in the form of broken lines with bends, the shape of which is close to the shape of the bend of the inner surface of the shell.

Claims (7)

1. The body of a railway car for the transportation and storage of goods, containing an inner surface, a manhole, including a shell having an inner surface close to the shape of an ellipse, an internal ladder with vertical posts interconnected by crossbars, the lower ends of the vertical posts are connected to the inner surface body, characterized in that the crossbars are made in the form of broken lines with bends, the shape of which is close to the shape of the bend of the inner surface of the shell, while the upper ends of the vertical posts are rigidly fixed to the inner surface of the shell. 2. The body of a railway car for the transportation and storage of goods according to claim 1, characterized in that the inner ladder is made of alloy. 3. The body of a railway car for the transportation and storage of goods according to claim 2, characterized in that the internal ladder is made of aluminum alloy. 4. The body of a railway car for the transportation and storage of goods according to claim 1, characterized in that the lower ends of the vertical racks are connected by welding to the inner surface of the body. 5. The body of a railway car for transportation and storage of goods according to claim 1, characterized in that the inner surface of the shell is made in a shape close to a circle. 6. The body of a railway car for the transportation and storage of goods according to claim 1, characterized in that the vertical racks are made of metal bars. 7. The body of a railway car for transportation and storage of goods according to claim 1, characterized in that the upper ends of the vertical posts are rigidly fixed to the inner surface of the shell by welding.

Images