RU180506U1 - SPRING BEAM OF A RAILWAY CARGO WAGON - Google Patents

Abstract

The utility model relates to coupling devices of a rolling stock of a railway vehicle, in particular, to structural elements of a spinal beam of a freight car in the attachment zone of an articulation device. The spinal beam of a freight car contains side walls and load-bearing shelves, the cantilever part of which is arranged to accommodate and rigidly fix the shank of one of the parts of the articulation device. In the side walls of the spinal beam, longitudinal guide grooves are made to accommodate the basing elements made on the side walls of the shank of one of the parts of the articulation device from the outside. The inventive utility model with its entire set of essential features allows to increase the strength of the shank attachment of one of the parts of the articulation device in the spinal beam of a railway freight car. 5 C.p.F., 3 ill.

Description

The utility model relates to rolling stock of railway transport, in particular to structural elements of the spinal beam of a freight car in the area of attachment of the articulation device.

The spinal beam of a freight car frame (RU 169159 U1, published 07.03.2017) with a cantilever part made with fixing through grooves in the side walls of the spine beam cut perpendicular to its longitudinal axis and with access to the longitudinal shelves of the spine beam is known from the prior art for placing in them the basing elements of the front and rear stops with thrust surfaces for contact interaction with the coupler.

The prior art device of the articulated type for articulation of cars (RU 147170 U1, published 10.27.2014, B61G 1/00, B61G 5/02), characterized by the presence of the back part and the hinge part, each of which on one side has a box-shaped shank, and on the other hand the connecting end. The width of the shanks of the hinge and pyatnik parts corresponds to the width of the inner cavity of the spinal beams of a freight car. The shanks of the hinge and pyatnik parts have a groove under the weld and are welded into the corresponding spinal beam of the car at the edges of the joint.

The technical problem inherent in this technical solution is the insufficient strength of the shank attachment of one of the parts of the articulation device with the spinal beam of the car, made by welds along the edges of the connection of the ridges of the spine and the corresponding surfaces of the shank of one of the parts of the articulation device, since this connection is subjected to heavy loads acting on the liner from the side of the car during the operation of the car.

The spinal beam of a freight car (RU 164848 U1, publ. 09/20/2016) is known from the prior art, containing side walls, load-bearing shelves and a cavity for installation in it and welding along the edges of the shank connection of one of the parts of the articulation device, while under the shank between the side walls at the level of the bearing shelves of the spinal beam installed additional support plate connected to the side walls of the spinal beam from the inside by a welded joint.

The technical problem inherent in these technical solutions is the complication of the design of the spinal beam of the car due to the installation of an additional base plate and fixing it by means of a welded joint, which at high loads can lead to cracks in the welds and subsequently to the loss of an additional base plate from the spinal beam.

The shanks of the parts of the articulation device are made of the same shape and design, as they are fixed in the corresponding spinal beams of the frames or half-bodies of the bodies of the articulated car by welding along the edges of the connection, with some differences externally due to the transition from the connecting ends of the parts of the articulation device. Thus, the claimed technical solution is suitable for the shanks of both connecting parts of the articulation device and the technical result for both shanks is the same.

The technical result of the claimed utility model is to provide the construction of the spinal beam of a railway freight car to increase the fastening strength in the inner cavity of its cantilever part of the shank of one of the parts of the articulation device.

The specified technical result is achieved by the fact that in the spinal beam of the body of a freight car containing side walls and shelves, the cantilever part of which is arranged to accommodate and tightly fix the shank of one of the parts of the articulation device, according to this utility model, in the side walls of the cantilever part of the spinal beam longitudinal guide grooves for placement of the basing elements of the shank, made on its side walls from the outside. Response guide grooves can be made through. The response guide grooves can be made with a length “L” in the size range from 40 to 350 mm, a width “W” in the size range from 40 to 150 mm, and also with a rounding of the radius “R” in the size range from 20 to 75 mm. In the side walls of the spinal beam, additional longitudinal guide grooves can be made.

The inventive utility model differs from analogues in that longitudinal guide grooves are made in the side walls of the cantilever part of the spinal beam. This difference from the prototype gives reason to argue that the proposed technical solution meets the patentability criterion of a utility model - "novelty."

The essence of the claimed utility model is illustrated by drawings, where in FIG. 1 - the spinal beam of the car from the side of the console part (main view), FIG. 2 - spinal beam (isometric view), FIG. 3 - spinal beam assembly with a fixed part of the articulation device (isometric view).

The spinal beam shown in the figures contains side walls 1 and shelves 2 and in its cantilever part is made with through, in the presented embodiment, guide grooves 3 located longitudinally relative to the axis of the spinal beam, for accommodating the base elements 4 of the shank 5 of one of the parts of the articulation device (Fig. 3), in the presented embodiment, made in the form of base ribs 4. The through guide grooves 3 are made with the length “L”, width “W” and, in the presented embodiment, with a rounding of radius “R”. In the inner cavity of the cantilever part of the spinal beam by means of a welded joint, a shank 5 of one of the parts of the articulation device is rigidly fixed.

The technical result of the claimed utility model, which consists in increasing the strength of the shank of one of the parts of the articulation device in the inner cavity of the cantilever part of the spinal beam, is achieved as follows.

The execution in the side walls of the cantilever part of the spinal beam of the guide grooves, including through ones, which are responsive to the basing elements of the shank of one of the parts of the joint device, allows to redistribute the load from the welds made along the edges of the connection between the shank and the spinal beam, which increases the strength of the shank one of the parts of the articulation device in the inner cavity of the cantilever part of the spinal beam. In addition, the longitudinal guide grooves provide fixation of the shank of one of the parts of the articulation device in the spinal beam of the car frame until the welds are laid over the edges of the joint of the spinal beam and the shank, as well as in the case of cracks in the welds or the weld breaks, which ensures increasing the shank attachment strength in the inner cavity of the cantilever part of the spinal beam of the freight car frame.

The range of lengths “L” of the guide grooves from 40 to 350 mm on the smaller side is due to the possibility of fixing in the cantilever part of the spinal beam of the carriage frame of the shank of one of the parts of the articulation device in the absence of a welded joint, and on the larger side it is limited by the maximum possible length of the base elements of the shank of one from parts of the articulation device; the implementation of the longitudinal guide grooves of a greater length than the length of the shank of one of the parts of the articulation device is impractical to maintain the strength of the spinal beam in the cantilever part, since empty guide grooves can impair the strength characteristics of the spinal beam. The implementation of the longitudinal guide grooves with a minimum width of "W" equal to 40 mm eliminates the possibility of disruption of the basing elements of the shank of the articulation device and is conditioned by withstanding a load equal to the weight of the shank, which increases the strength of the shank attachment in the spine, and the longitudinal guide grooves are made with a thickness of " W »more than 150 mm is impractical, since a further increase in the strength of the shank attachment in the spine is no longer taking place.

The implementation of the longitudinal guide grooves in the side walls of the cantilever part of the spinal beam with a rounding radius "R" provides increased strength of the shank of the articulation device in the inner cavity of the cantilever part of the spinal beam of the car frame due to the uniform separation of the transverse and longitudinal loads acting from the shank along the guide grooves. The range of the radius of fillet "R" is due to the strength characteristics of the spinal beam in the area where the grooves are rounded by transverse and longitudinal loads that are evenly distributed over the rounded part of the guide grooves, which improves the strength of the shank of one of the parts of the articulation device in the inner cavity cantilever part of the spinal beam of the freight wagon frame. Performing a rounding with a radius of less than 20 mm will cause cracks / chips and possible breakdown of welds, since the distribution area of longitudinal loads will be small, and the rounding with a radius of more than 75 mm is limited by the dimensions of the side wall of the spine beam and the exclusion of overlapping stress concentration zones on each other.

The presence of additional longitudinal guide grooves in the side walls of the cantilever part of the spine beam provides an increase in the fastening strength of the shank of one of the parts of the articulation device in the spine beam due to the placement of the base elements of the shank, if any, as well as additional redistribution of loads arising during operation and acting on the shank one of the parts of the articulation device, which reduces the loads acting on the welded joint of the shank and the spinal beam of the frame the car at the edges of the connection, thereby increasing the strength of the shank in the inner cavity of the cantilever part of the spinal beam of the frame of the railway freight car.

Thus, the claimed utility model with all its essential features makes it possible to provide the construction of the spinal beam with an increase in the fastening strength in the inner cavity of its cantilever part of the shank of the articulation device.

Claims (6)

1. The spinal beam of a freight car, comprising side walls and shelves, the cantilever part of which is capable of accommodating and rigidly fixing the shank of one of the parts of the articulation device, characterized in that longitudinal guide grooves are made in the side walls of the cantilever part of the spinal beam to accommodate the base elements of the shank made on its side walls from the outside. 2. The spinal beam according to claim 1, characterized in that the guide grooves are made through. 3. The spinal beam according to claim 1, characterized in that the guide grooves are made with a length "L" in the size range from 40 to 350 mm. 4. The spinal beam according to claim 1, characterized in that the guide grooves are made of a width "W" in the size range from 40 to 150 mm. 5. The spinal beam according to claim 1, characterized in that the guide grooves are made with a rounding of radius "R" in the size range from 20 to 75 mm. 6. The spinal beam according to claim 1, characterized in that additional longitudinal guide grooves are made in the side walls of the cantilever part of the spinal beam.

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