RU180479U1 - CONNECTING PART OF THE DEVICE FOR JOINTING THE RAILWAY CARS - Google Patents

Abstract

The utility model relates to couplers of a rolling stock of a railway vehicle. The connecting part of the articulation device of railway cars contains a connecting end and a shank, on the sides of which the outer supporting ribs are made with a length of "L" and a width of "W". The utility model allows to increase the strength of the shank of the connecting part of the articulation device of railway freight cars. 3 s.p. f-ly; 3 ill.

Description

The invention relates to couplers of articulated rolling stock of a railway vehicle, in particular to structural members of an articulation device.

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 internal width of the cavity of the spinal beam of the car. The ends and lower shelves of the shanks of the hinge and pyatnikovy parts are cut under the weld. The shanks of the pyatnikovy or hinged parts of the device are welded into the spinal beam of the car.

Known hinged connection unit of freight cars (US 5133467 A, IPC B61G 9/00, publ. 07/28/1992, prototype), containing a Friday and a lead part, each of which on one side has a box-shaped shank, and on the other hand a connecting horse, pivotally connected by means of a pin passed through vertical holes made at the connecting ends of these parts. The shank of the connecting part of the articulation device is rigidly fixed in the spinal beam of the frame of the corresponding railway carriage by means of a welded joint at the edges of the joint.

The technical problem inherent in these solutions is the insufficient strength of the shank of the articulation device during operation, which is fixed in the spinal beam of the car, since the connection is made by welds along the edges of the connection of the ribs of the spine and the corresponding surfaces of the faces of the shank, which is exposed to the greatest loads during operation of the car , in particular, from the bottom side, since all the load acting on the shank from the side of the spine beam is distributed along the welded seams made from the bottom side.

The shanks of the connecting 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-frames of two articulated cars 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 increase the strength of the shank of the connecting part of the articulation device of railway freight cars.

The specified technical result is achieved by the fact that in the connecting part of the articulation device containing on one side a connecting end and, on the other hand, a box-shaped shank for connection with the spinal beam of a freight car, according to the claimed utility model, on the sides of the shank, external ribs of length "L" in the size range from 40 to 350 mm. Bearing outer ribs can be made with a width of "W" in the size range from 40 to 150 mm. The supporting outer ribs can be C-shaped with a radius of fillet “R” in the size range from 20 to 75 mm. On the side walls of the shank, additional load-bearing ribs can be made from the outside.

The inventive utility model differs from the prototype in that on the sides of the shank from the outside there are made outer ribs of length "L" in the size range from 40 to 350 mm, in addition, the bearing outer ribs can be made of width "W" in the size range from 40 to 150 mm and may have a C-shape with a fillet radius "R" in the size range from 20 to 75 mm. 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 - connecting part of the articulation device (side view), FIG. 2 - connecting part of the articulation device (top view), FIG. 3 is an isometric view of the connecting portion of the articulation device.

The figures show the connecting part of the articulation device comprising a shank 1 on one side and a connecting end 2 on the other. In the embodiment shown in the figures, the connecting end 2 of the part of the articulation device is shown schematically, since the shanks 1 of both parts of the articulation device of the cars are made identically and the claimed utility model is suitable for both parts of the articulation device. On the lateral sides of the shank 1, the outer bearing ribs 3 and 4 are made on both sides with a length “L” and a width “W”.

In the embodiment of FIG. In version 3, the supporting ribs 7 are made of an elongated C-shaped length “L”, width “W”, and radius of curvature “R”.

The technical result of the claimed utility model, which consists in increasing the strength of the shank of the connecting part of the articulation device, is achieved as follows.

The execution on the lateral sides of the shank on the outer side of the bearing ribs provides an increase in the strength of the shank of the articulation device due to the fact that during operation (when moving articulated railway cars), the loads acting on the shank of the articulation device installed in the spinal beam of the carriage are evenly distributed over the entire surface of the outer supporting ribs and welds made along the edges of the connection of the shank and the spinal beam, in particular from the bottom side. In addition, the outer supporting ribs on the sides of the shank provide fixation of the shank in the spine of the frame until welds are made along the edges of the connection between the shank and the spine, as well as in the case of cracks in the welds or failure of the weld, which also increases the strength of the shank and the connecting part of the articulation device. The minimum value of the length "L" of the outer supporting ribs, equal to 40 mm, makes it possible to fix the shank of the connecting part of the articulation device in the spinal beam of the car frame in the absence of a welded joint at the edges of the joint. The maximum value of the length “L” of the outer supporting ribs, equal to 350 mm, is limited by the length of the side of the shank of the connecting part of the joint device and the exclusion of overlapping stress concentration zones that arise around the welds. The range of widths “W” of the outer load-bearing ribs, providing increased strength of the shank of the connecting part of the articulation device, is limited by the minimum value (40 mm), which eliminates the possibility of disruption of the load-bearing ribs and provides load bearing equal to the weight of the shank of the connecting part of the articulation device a thickness of more than 150 mm is impractical, since the increase in strength no longer occurs.

The implementation of the outer supporting ribs of an elongated C-shaped shape ensures the separation of the loads acting on the side of the railway carriage along the two guide sides of the ribs and the uniform distribution of loads along the entire length of the outer ribs, which allows to increase the strength of the shank of the connecting part of the articulation device of railway freight cars. The range of the radius of rounding "R" is due to the strength characteristics of the bearing ribs in the rounding zone under the influence of transverse and longitudinal loads arising along and across the guiding external bearing ribs and evenly distributed over their rounded part, which allows to increase the strength of the shank of the connecting part of the railway articulation device wagons. Performing rounding with a radius of less than 20 mm will lead to cracks / chips and possible failure of welds, since the distribution area of longitudinal loads will be small, and rounding with a radius of more than 75 mm is limited by the dimensions of the side wall of the shank and the exclusion of overlapping stress concentration zones on each other.

The presence of additional external bearing ribs on the sides of the shank of the connecting part of the articulation device provides an additional redistribution of the loads that arise during operation and acting on the shank of the connecting part of the articulation device, which reduces the loads acting on the shank from the side of the car, thereby increasing the strength of the shank of the connecting parts of the articulation device of railway freight cars.

Thus, the claimed utility model with all its essential features makes it possible to increase the strength of the shank of the connecting part of the articulation device of railway freight cars.

Claims (4)

1. The connecting part of the articulation device of railway cars, containing on one side a connecting end, and on the other hand a box-shaped shank, characterized in that on the sides of the shank from the outside there are load-bearing outer ribs of length "L" in the size range from 40 to 350 mm 2. The connecting part according to claim 1, characterized in that the supporting outer ribs are made of width "W" in the size range from 40 to 150 mm. 3. The connecting part according to claim 1, characterized in that the supporting outer ribs are C-shaped with a fillet radius "R" in the size range from 20 to 75 mm. 4. The connecting part according to claim 1, characterized in that on the side walls of the shank from the outside there are additional supporting ribs.

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