RU208726U1 - RAILWAY PLATFORM FRAME - Google Patents

Abstract

The utility model relates to railway rolling stock, in particular, to the design of railway platform frames. Railway platform frame contains longitudinal side beams, transverse beams, a cantilever including a shortened box-section center beam, diagonal braces, a pivot beam, an end beam, intermediate beams, a connecting beam, while the diagonal braces consist of vertical ribs located diagonally between the connecting beam and intermediate beam, and vertical ribs located between the intermediate beam and the shortened center beam, lower chord, upper chord. The vertical ribs located diagonally between the tie beam and the intermediate beam form an angle α, which is in the range from 35° to 50°, and the vertical ribs located between the intermediate beam and the shortened main beam form an angle β, which is equal to α/2, forming , thus, a fracture of the vertical ribs in the area of the intermediate beam. The upper sheets of the pivot beam and the upper sheets of the intermediate beam are located at an angle ψ relative to the surface of the longitudinal side beams of the frame, which is in the range from 9° to 15°. Due to the location of the diagonal braces at a smaller angle, the load is redistributed to the longitudinal side beams of the frame, while partially unloading the diagonal braces, so the upper and lower belts of the diagonal braces are made of a smaller width, and an increase in the length of the diagonal braces allows to reduce the length of the spinal beam. The technical result consists in reducing the mass of the metal structure of the frame of the railway platform, provided that the required strength is ensured.

Description

The utility model relates to railway rolling stock, in particular to the design of railway platform frames.

Known platform car for large-capacity containers (RU No. 2329906, IPC B61D 3/08, B61F 1/02, publ. In this case, the frame is made of two end and middle parts fastened together. Each end part of the frame contains transverse beams - pivot and end, as well as longitudinal beams - a shortened spinal beam and side beams of an I-section protruding above it, to the ends of the free ends of which flat plugs are rigidly fixed. Two braces adjoin the shortened center beam, connecting it with the pivot beam, and two braces, connecting it with the plugs of the side beams. The plugs are adjoined by transverse braces fastened respectively to the upper and lower flanges of the braces, and the middle part of the frame contains two side beams rigidly interconnected by several transverse beams. Each side beam is made box-shaped, several longitudinal holes are made in its vertical walls, and its end part adjoins the plug of the corresponding side beam of the end part of the frame with the upper and lower shelves of the joined beams aligned. The outer vertical wall of the box profile is installed in the same plane with the vertical wall of the I-profile, and the inner vertical wall is aligned with the vertical wall of the brace of the shortened center beam.

A disadvantage of the known platform car for large-capacity containers is the use of a rolled Z profile of the transverse beam and braces having fixed thicknesses of horizontal and vertical shelves, which increases the weight of the car frame structure.

A railway platform frame console is known (RU No. 184883, IPC B61F 1/02, publ. 11/13/2018), containing a transverse beam, braces and a shortened main beam, while the main beam is additionally equipped with a figured sheet, and its vertical walls are made of two sheets variable thickness, in turn, the braces and the transverse beam are made of an I-profile, forming a power triangle.

The disadvantage of the well-known console frame of the railway platform is the presence of massive diagonal braces, and as a consequence of the increased intensity of the structure.

Known frame of the railway platform for the transportation of large-capacity containers (RU No. 183178, IPC B61D 3/00, B61F 1/02 publ. 09/12/2018), adopted as a prototype, including a shortened spinal beam connected to the side beams of the I-beam through braces , pivot, frontal, transverse beams, as well as fitting stops, while the platform is made long, and the shortened center beam has a box-shaped section with vertical sheets of variable thickness and is additionally provided with a figured sheet from below. The braces are made with an I-section and are connected in the area of adjacency to the side beams by a transverse connecting beam, forming a power triangle. The side beams are load-bearing, made in the form of an asymmetrical I-beam, in the middle part of which there is an additional wall forming a box-shaped section of the beams. Openings closed by shells are made in the vertical walls of the load-bearing side beams. The transverse connecting beams are made of corners and are located one below the other closer to the upper and lower flanges of the load-bearing side beams, visually forming a rectangle in cross section. Hinged fitting stops are located on the load-bearing side beams, and stationary fitting stops are rigidly fixed at the corners of the frame on the U-shaped front beams.

The disadvantage of the known frame of the railway platform is the presence of massive diagonal braces, and as a consequence, the increased weight of the metal structure.

The technical problem to be solved is the increased mass of the metal structure of the frame of the railway platform.

The technical result consists in reducing the mass of the metal structure of the frame of the railway platform, provided that the required strength is ensured.

The specified technical result is achieved due to the fact that the frame of the railway platform contains longitudinal side beams, transverse beams, a console, including a shortened box-section center beam, I-section diagonal braces, a pivot beam, an end beam, intermediate beams, a connecting beam, while diagonal braces consist of vertical ribs located diagonally between the connecting beam and the intermediate beam, and vertical ribs located between the intermediate beam and the shortened spinal beam, the lower chord, the upper chord, which consists of elements made of rolled sheets of various thicknesses. The shortened main beam consists of vertical ribs, a lower chord and an upper chord, consisting of elements made of rolled sheet metal of various thicknesses. The vertical ribs located diagonally between the tie beam and the intermediate beam form an angle α, which is in the range from 35° to 50°, and the vertical ribs located between the intermediate beam and the shortened main beam form an angle β, which is equal to α/2, forming , thus, a fracture of the vertical ribs of the diagonal braces in the area of the intermediate beam. The upper sheets of the pivot beam and the upper sheets of the intermediate beam are located at an angle ψ relative to the surface of the longitudinal side beams of the frame, which is in the range from 9° to 15°. The vertical ribs located diagonally between the connecting beam and the intermediate beam, and the vertical ribs located between the intermediate beam and the shortened center beam, have a variable height.

Due to the location of the diagonal braces at a smaller angle, the load is redistributed to the longitudinal side beams of the frame, while partially unloading the diagonal braces, so the upper and lower chords of the diagonal braces are made of a smaller width, ranging from 160 mm to 180 mm, and the increase in the length of the diagonal braces to 2000 mm allows you to reduce the length of a massive shortened main beam to 4200 mm. Thus, the technical result is achieved, which consists in reducing the mass of the metal structure of the frame of the railway platform, provided that the required strength is ensured.

The proposed utility model is illustrated by graphic material:

in fig. 1 shows a general view of the frame of the railway platform;

in fig. 2 shows the frame console of the railway platform;

in fig. 3 shows an I-section of diagonal braces;

in fig. 4 shows a bottom view of a shortened center beam;

in fig. 5 shows a box-shaped section of the main beam;

in fig. 6 shows the angle α formed by vertical ribs placed diagonally between a tie beam and an intermediate beam;

in fig. 7 shows the angle β formed by vertical ribs located between the intermediate beam and the shortened main beam;

in fig. 8 shows the angle ψ formed by the upper sheets of the pivot beam and the upper sheets of the intermediate beam relative to the surface of the longitudinal side beams of the frame.

The frame 1 of the railway platform (Fig. 1) includes longitudinal side beams 2, transverse beams 3, a console 4 (Fig. 2) containing a shortened center beam 5 (Fig. 1, 2), diagonal braces 6, a pivot beam 7, end beam 8, intermediate beams 9, connecting beam 10, while diagonal braces 6 and connecting beam 10 form a power triangle.

Diagonal braces 6 have an I-section A-A (Fig. 3) and contain vertical ribs 11 (Fig. 2) located diagonally between the connecting beam 10 and the intermediate beam 9, and vertical ribs 12 located between the intermediate beam 9 and the shortened spinal beam 5, the upper belt 13 consisting of elements 14, 15 and the lower belt 16. To improve the convenience of connecting the frame 1 of the railway platform with the bogie, a technological hole 22 is made in the lower belt 16 (Fig. 4).

The shortened main beam 5 is a welded box-shaped structure B-B (Fig. 5) and contains vertical ribs 17 (Fig. 2), the upper belt 18, consisting of elements 19, 20 and the lower belt 21. To reduce the mass of the shortened main beam 5, and to improve the convenience of mounting the automatic coupling equipment, a technological hole 24 is made in the lower belt 21 (Fig. 4), and an oval hole 23 is made in the upper belt 18 in the element 19 (Fig. 2).

The upper chord 13 and the lower chord 16 of the diagonal braces 6 are made with a width ranging from 160 mm to 180 mm, the length of the diagonal braces 6 is 2000 mm, and the shortened spinal beam 5 is reduced to 4200 mm.

Elements 14, 15 of the upper belt 13 of the diagonal braces 6 and elements 19, 20 of the upper belt 18 of the shortened spinal beam 5 are made of sheet metal of various thicknesses.

The vertical ribs 11 (FIG. 2) located diagonally between the connecting beam 10 and the intermediate beam 9, and the vertical ribs 12 located between the intermediate beam 9 and the shortened center beam 5, have a variable height.

Vertical ribs 11 located diagonally between the tie beam 10 and the intermediate beam 9 form an angle α (Fig. 6) ranging from 35 to 50°. Vertical ribs 12 (Fig. 7) located between the intermediate beam 9 and the shortened main beam 5 form an angle β, which is equal to α/2. Thus, the vertical ribs 11 and the vertical ribs 12 form a fracture in the area of the intermediate beam 9. Due to the fracture of the vertical ribs 11, the angle between the diagonal braces 6 is reduced, thereby reducing the width of the upper chord 13 and the lower chord 16, as well as by increasing the length diagonal braces 6 shortened the length of the center beam 5, which reduces the intensity of the console 4, and as a consequence of the frame 1 of the railway platform.

The top sheets 25 (Fig. 2) of the pivot beam 7 and the top sheets 26 of the intermediate beam 9 are located at an angle ψ (Fig. 8) relative to the surface of the longitudinal side beams 2 of the frame 1, ranging from 9° to 15°.

Thus, the technical result is achieved, which consists in reducing the mass of the metal structure of the frame of the railway platform, provided that the required strength is ensured.

Claims (5)

1. The frame of the railway platform, containing longitudinal side beams, transverse beams, a console, including a shortened box-section center beam, consisting of vertical ribs, a lower chord and an upper chord, I-section diagonal braces, a pivot beam, an end beam, intermediate beams, a connecting beam , while the diagonal braces consist of a lower chord, an upper chord, vertical ribs located diagonally between the tie beam and the intermediate beam, and vertical ribs located between the intermediate beam and the shortened center beam, characterized in that the vertical ribs located between the tie beam and intermediate beam, form an angle α, ranging from 35° to 50°, the vertical ribs located between the intermediate beam and the shortened main beam form an angle β, which is equal to α/2, thus forming a fracture of the vertical ribs of the diagonal braces in zone of the intermediate beam, and the upper foxes The pivot beam and the upper sheets of the intermediate beam are located at an angle ψ relative to the surface of the longitudinal side beams of the frame, while the angle ψ is in the range from 9° to 15°. 2. The frame according to claim 1, characterized in that the width of the upper and lower chords of the diagonal braces is in the range from 160 mm to 180 mm. 3. The frame according to claim 1, characterized in that the length of the braces is 2000 mm, the length of the shortened spinal beam is 4200 mm. 4. The frame according to claim 1, characterized in that the vertical ribs located diagonally between the connecting beam and the intermediate beam, and the vertical ribs located between the intermediate beam and the shortened center beam, have a variable height. 5. The frame according to claim 1, characterized in that the elements of the upper chord of the diagonal braces and the elements of the upper chord of the shortened center beam are made of sheet metal of various thicknesses.

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