RU210107U1 - RAILWAY CAR HEAD - Google Patents

Abstract

The utility model relates to railway rolling stock, namely to devices designed to transfer forces arising from the movement of rolling stock units, in particular to thrust bearings. EFFECT: technical result consists in improvement of the design of the railcar girth plate, namely, in reduction of the mass of the structure. The railcar top plate, which is a box-section casting, includes vertical walls (1, 2) and horizontal walls (3, 4), a technological hole (5) for the bogie kingpin, technological lugs (6) for installing a center plate with chamfers (7) under welding of the pad to the main sill, as well as through holes made in the horizontal (3, 4) and vertical (1, 2) walls (8), located in the corner parts of the walls, and large (9), located in the central parts of the walls, through holes. Through technological holes (8, 9) in horizontal and vertical walls (1, 2, 3, 4) can be made of round, oval or rectangular shape. 3 w.p. f-ly, 4 ill.

Description

Field of technology to which the utility model belongs

The utility model relates to railway rolling stock, namely, to devices designed to transfer forces arising from the movement of rolling stock units, in particular, to thrust bearings.

State of the art

There are various technical solutions in the area under consideration.

So, a patent for a utility model RU No. 182296 (IPC B61G7 / 00, published on August 13, 2018) is known. The stop united with the thrust pad comprises thrust squares and a thrust pad box made of a trough shape and including corners and a plate fixed between them. One of the corners of the thrust box is fixed on the thrust squares of the stop, made with cutouts, and forms with them the end wall of the stop.

The design of the thrust pad is also known from the prior art (patent for invention US No. 3797674, published on March 19, 1974). The design proposes a thrust bearing as part of the rear stop of the coupler.

Known utility model patent RU No. 181825 (IPC B61F1/00, published 26.072018). The pivot assembly of a cargo gondola car consists of a frame center and pivot beams, a bogie bolster, a thrust pad, a center plate and a kingpin connecting the gondola car frame and the bogie. An element is installed in the center beam, which limits the movement of the pivot along its vertical axis.

The closest, in terms of essential technical features to the claimed utility model, is the design of the thrust bearing 5722-07.01.01.305, which is used in serial gondola cars 12-9761, 12-9548, as well as in the serial box car 11-6874 (https://www. .oborudunion.ru/nadpyatniki-1000193375).

The disadvantages of the known technical solution are:

- large mass of casting,

- a large amount of finishing machining of mating surfaces before installation in the center beam.

Thus, today the technical problem in the area under consideration is: a large mass of the casting and a large amount of finishing machining of the mating surfaces of the thrust bearing before installation.

Disclosure of the essence of the utility model

The proposed technical solution due to the execution of technological holes in the horizontal and vertical walls of the thrust bearing provides a reduction in the mass of the structure.

The technical result of the proposed utility model is to reduce the mass of the design of the railcar girth plate.

The technical result is achieved by the fact that in the thrust bearing of a railway car, which is a casting of a box-section, including four vertical walls with technological tides for the installation of the bearing center, on the upper surface of which chamfers are made for welding the bearing to the center beam, and two horizontal walls, and on the upper horizontal the wall has a technological hole for the bogie pin, according to the utility model, small through holes located in the corner parts of the walls and large holes located in the central parts of the walls are made in the horizontal and vertical walls. In this case, the shape of the holes can be round or oval, or rectangular in shape with rounded corners. In the most preferred embodiment of the proposed utility model, the holes are arranged as follows: one large oval hole is made in the central part of the lower horizontal wall, four small round holes are made in the corner parts of the upper horizontal wall, one a large oval hole in the central part and four small round holes in the corner parts, while in the other two short vertical walls there is one large round hole in the central part and two small round holes in the two upper corners of the wall. The size of the holes is selected based on the strength characteristics of the part.

The essence of the proposed utility model is illustrated by the following graphic material:

figure 1, which shows a General view of the thrust bearing, where:

1 - long vertical walls,

2 - short vertical walls,

3 - upper horizontal wall,

4 - lower horizontal wall,

5 - technological hole for the kingpin,

6 - technological tides for the installation of a center plate,

7 - chamfers for welding the pad to the center beam;

8 - through small holes,

9 - through large holes,

figure 2, which shows a side view from the side of the long vertical wall of the thrust pad,

figure 3, which shows a side view from the side of the short vertical wall of the thrust pad,

figure 4, which shows a top view of the pad.

Railcar top plate, which is a box-section casting, includes long 1 and short 2 vertical walls, top 3 and bottom 4 horizontal walls, technological hole 5 for the kingpin of the freight car bogie, technological lugs 6 for the installation of the center pad, chamfers 7 for welding the pad to the spinal beam.

To facilitate the construction in the horizontal 3, 4 and vertical 1, 2 walls of the thrust pad, through technological holes are made: small 8 located in the corner parts of the walls, and large 9 located in the central parts of the walls. Moreover, the shape of the holes 8, 9 can be round, oval or rectangular with rounded corners.

In the most preferred embodiment of the proposed utility model, the holes are arranged as follows: in the central part of the lower horizontal wall 4, one large oval hole 9 is made; in the corner parts of the upper horizontal wall 3, four small round holes 8 are made, on two long vertical The walls 1 have one large oval hole 9 in the central part and four small round holes 8 in the corner parts, while the other two short vertical walls have one large round hole 9 in the central part and two small holes 8 round shape in the two upper corners of the wall.

The size of the holes is selected based on the strength characteristics of the part. The diameter of small round holes can be in the range from 20 to 60 mm. The diameter of large round holes can be in the range from 80 to 150 mm. The dimensions of the oval holes can be as follows: 100…150 x 250…300 mm. Going beyond the lower range of sizes will not give a visible effect with a decrease in weight. Going beyond the upper range of sizes will lead to a decrease in the strength of the structure.

Thus, the proposed technical solution, due to the execution of technological holes in the horizontal and vertical walls of the thrust bearing, provides a reduction in the weight of the product.

Claims (4)

1. The thrust pad of a railway car, which is a box-section casting, including four vertical walls with technological tides for the installation of the center plate, on the upper surface of which chamfers are made for welding the pad to the center beam, and two horizontal walls, and on the upper horizontal wall a technological hole is made for a bogie pin, characterized in that in the horizontal and vertical walls there are through small holes located in the corner parts of the walls and large holes located in the central parts of the walls. 2. The thrust plate according to claim 1, characterized in that the shape of the holes can be round, oval or rectangular with rounded corners. 3. The pad according to claim 1, characterized in that the holes are arranged as follows: in the central part of the lower horizontal wall, one large oval hole is made, in the corner parts of the upper horizontal wall, four small round holes are made, in two long vertical holes opposite each other The walls have one large oval hole in the central part and four small round holes in the corner parts, while the other two short vertical walls have one large round hole in the central part and two small round holes in the two upper wall corners. 4. The thrust pad according to claim 1, characterized in that the size of the holes is selected based on the strength characteristics of the part.

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