RU225828U1 - AUTO HITCH REAR STOP - Google Patents

Abstract

The utility model relates to the field of railway transport and can be used in the design of separate rear stops for automatic coupling devices installed inside the center beams of the frames of railway freight cars. The connection unit of the rear stop of the automatic coupling device with the center beam, made with side walls, contains a back stop installed inside the center beam. The back stop consists of two thrust squares (I) and (II), each of which has a front end (1) with thrust pads (1.1), a rear end (2) and a support wall with inner (3) and outer (4) surfaces . The rear ends (2) are inclined towards the front ends (1) at an angle α of no more than 45° relative to the front ends (1). On the inner surfaces (3) of the supporting walls there are upper (5.1) and lower (5.2) longitudinal recesses (5), as well as central ribs (6). The height h of the central ribs (6) ranges from 20 to 90 mm. Through windows (7) are made in the longitudinal recesses (5). The outer surfaces (4) of the supporting walls are made flat and are designed to abut the side walls (8.1) of the center beam 8 with subsequent application of welds along the contour of the surfaces, including the edges of the rear ends (2) and the edges of the through windows (7). The technical result of the utility model is to reduce metal consumption while ensuring the strength of fastening of the rear stop to the center beam of the freight car frame. 8 salary f-ly, 8 ill.

Description

The utility model relates to the field of railway transport and can be used in the design of connecting the rear stops of separate type automatic coupling devices installed inside the center beam of the frame of railway freight cars with the center beam.

A known unit for connecting the stop of an automatic coupling device with a center beam, including walls, containing a stop consisting of two thrust squares installed inside the center beam, with each thrust square having front ends made with a thrust platform for interaction with the draft gear, rear ends located parallel to the front ends, and supporting walls, the inner surfaces of which are made with longitudinal recesses and longitudinal stiffening ribs, the outer surfaces are made with protruding elements in the form of figured tides for placement in the through cutouts of the corresponding side walls of the center beam (US 2007/0151941 A1, publ. 05.07 .2007).

There is also a known unit for connecting the stop of an automatic coupling device with a center beam, including walls, containing a stop consisting of two thrust squares installed inside the center beam, with each thrust square having front ends with thrust pads, rear ends made parallel to the front ends, and support walls in which the internal surfaces are made flat, the outer surfaces are made with longitudinal recesses and flat central ribs located between the longitudinal recesses, on which collars are made for placement in the through holes of the corresponding side walls of the center beam and welding along the contour of the holes, while the height of the flat central the edges of each thrust square are in the range from 90 to 130 mm (RU 190803 U1, published 07/12/2019).

A technical problem that cannot be solved by known technical solutions is the increased metal consumption of the joints connecting the rear stops with the center beam of the frame, in which, to connect to the side walls of the center beam of the frame, massive protruding elements are made in the form of volumetric figured tides and Burts. To implement collars with an area sufficient to ensure a strong connection with the center beam, in the closest analogue, the flat central ribs must have a significant height, which additionally increases the metal consumption of the rear stops. On the side of the center beam, making counter through holes of a large area in the side walls of its profile leads to a weakening of the structure and, thus, can cause a decrease in the strength of the connection with the stops of the automatic coupling device. In addition, when making the rear ends of the thrust angles of the stop parallel to the front ends, the possibility of reducing the metal consumption of the structure is not used.

The technical result of the utility model is to reduce metal consumption while ensuring the strength of fastening of the rear stop to the center beam of the freight car frame.

The specified technical result is achieved by the fact that in the connection unit of the rear stop of the automatic coupling device with the center beam, made with side walls, containing a back stop installed inside the center beam and consisting of two thrust squares having front ends with thrust pads, rear ends and support walls , on the surfaces of which there are upper and lower longitudinal recesses and central ribs located between the longitudinal recesses, according to the utility model, through windows are made in the longitudinal recesses of the supporting walls of the thrust angles, the height of the central ribs is up to 20 to 90 mm, the rear ends are located obliquely to the side front ends, while longitudinal recesses and central ribs are made on the inner surfaces of the supporting walls of the thrust angles, and the outer surfaces of the supporting walls of the thrust angles are made flat to fit against the side walls of the center beam

Particular forms of implementation of the utility model are characterized by the fact that the height of the central ribs made on the internal surfaces of the supporting walls of the thrust angles is optimally 70 mm; the rear ends of the rear stops of the thrust squares are located at an angle of no more than 45° relative to the front ends, optimally at an angle of 10°; through windows can be made in the upper or lower longitudinal recesses, or in both, upper and lower, longitudinal recesses made in the supporting walls of the thrust angles of the back stop; through windows can have a round shape, or a shape elongated along longitudinal recesses.

The utility model is illustrated by drawings, which show:

in fig. 1 – back stop, consisting of two thrust squares, axonometric projection;

in fig. 2 – connection unit of the rear stop of the automatic coupling device with the center beam, axonometric projection;

in fig. 3 – back stop, side view;

in fig. 4, 5, 6, 7, 8 – examples of the design of rear stops with through windows of various variations.

The connection point between the rear stop of the automatic coupling device and the center beam contains a back stop consisting of two thrust squares I and II.

Each thrust square I and II has a front end 1, a rear end 2 and a support wall with an inner surface 3 and an outer surface 4.

The front ends 1 of thrust squares I and II are made with thrust pads 1.1.

The rear ends of 2 thrust squares I and II are inclined towards the front ends 1, directed from the bottom to the top. The tilt angle α does not exceed 45° relative to the front ends 1; in the optimal value, the tilt angle α is 10°.

On the inner surfaces 3 of the supporting walls of the thrust squares I and II, there are two longitudinal grooves 5, top 5.1 and bottom 5.2, as well as central ribs 6 located between the longitudinal grooves 5. The height h of the central ribs 6 ranges from 20 to 90 mm, optimally value - 70 mm.

In the longitudinal recesses 5 of the internal surfaces 3 of the supporting walls of the thrust squares I and II, through windows 7 are made. In this case, variability in the location of the through windows 7 and their shape is possible. Thus, through windows 7 can be made in one of the longitudinal recesses 5, upper 5.1 or lower 5.2, or in both longitudinal recesses 5, upper 5.1 and lower 5.2. Through windows 7 can have a round shape, or a shape elongated along the longitudinal recesses 5 to different lengths. Through windows 7 can also be made of different heights, depending on the height h of the central ribs 6.

The outer surfaces 4 of the supporting walls of the thrust angles I and II are made flat and are designed to adjoin the side walls 8.1 of the center beam 8 with the subsequent application of welds along the contour of the surfaces, including the edges of the rear ends 2 and the edges of the through windows 7.

The implementation of through windows 7 in the longitudinal recesses 5 of thrust squares I and II of the rear stops significantly reduces the metal consumption of the thrust squares. In combination with the fact that the longitudinal recesses 5 and the central ribs 6 are made on the side of the internal surfaces 3 of the supporting walls of the thrust squares I and II, while the outer surfaces of the 4 supporting walls are made flat, conditions are created for a tight fit to the side walls 8.1 of the spinal beam 8 edges through windows 7 from the side of the outer surfaces 4 and applying welds along the contour of the through windows 7. This allows you to increase the total length of the welds for fastening the thrust angles and, thereby, increase the strength of the connection between the back stop and the spinal beam.

The length of the welds along the edges of the through windows 7 can be increased by increasing the height of the through windows 7 and has the greatest value when the height h of the central ribs 6 is equal to 20 mm. A height value h less than the specified minimum interval limit does not provide sufficient strength of the rear stops for loads acting from the automatic coupler side. Exceeding the maximum limit of the height interval h, equal to 90 mm, is inappropriate from the standpoint of increasing metal consumption. The value of the specified height interval h, which is 70 mm, provides an optimal combination of the metal consumption of the structure and the fact that the loads acting from the automatic coupler on the thrust angles of the back stop and on their welding seams are not enough to cause a damaging effect.

By placing the rear ends of 2 thrust squares I and II of the rear stop with an inclination at an angle α towards the front ends 1, a reduction in the metal consumption of the rear stop is achieved. When the angle α is more than 45°, there is an uneven perception of the loads acting on the seams of welding the edges of the rear ends of 2 thrust angles to the center beam 8. The angle of inclination α, which is 10°, ensures optimal redistribution of the forces acting on the remaining seams through other parts and assembly units of the automatic coupling device longitudinal compressive forces.

Thus, by introducing additional welding seams of the thrust squares I and II of the back stop through the through windows 7 and the rear ends 2 located at an angle, equal loading of the weld seams of the back stop structure inside the profile of the center beam 8 is achieved, the strength of the attachment of the back stop to the center beam is increased with a significant reduction in metal consumption .

Claims (9)

1. The connection unit of the rear stop of the automatic coupling device with a center beam made with side walls, containing a back stop installed inside the center beam and consisting of two thrust squares having front ends with thrust pads, rear ends and support walls, on the surfaces of which the upper and lower longitudinal recesses and central ribs located between the longitudinal recesses, characterized in that through windows are made in the longitudinal recesses of the supporting walls of the thrust squares, the height of the central ribs is up to 20 to 90 mm, the rear ends are located obliquely towards the front ends, while the longitudinal recesses and central ribs are made on the inner surfaces of the supporting walls of the thrust angles, and the outer surfaces of the supporting walls of the thrust angles are made flat to fit against the side walls of the center beam. 2. The connection unit according to claim 1, characterized in that the height of the central ribs made on the internal surfaces of the supporting walls of the thrust angles of the back stop is optimally 70 mm. 3. The connection unit according to claim 1, characterized in that the rear ends of the thrust squares of the rear stop are located at an angle of no more than 45° relative to the front ends. 4. The connection unit according to claim 1, characterized in that the rear ends of the thrust squares of the back stop are optimally located at an angle of 10° relative to the front ends. 5. The connection unit according to claim 1, characterized in that through windows are made in the upper longitudinal recesses made in the supporting walls of the thrust squares of the back stop. 6. The connection unit according to claim 1, characterized in that through windows are made in the lower longitudinal recesses made in the supporting walls of the thrust squares of the back stop. 7. The connection unit according to claim 1, characterized in that through windows are made in both, upper and lower, longitudinal recesses made in the supporting walls of the thrust angles of the back stop. 8. The connection unit according to claim 1, characterized in that the through windows are round in shape. 9. The connection unit according to claim 1, characterized in that the through windows have a shape elongated along the longitudinal recesses.