RU214028U1 - CONSOLE PART OF THE FREIGHT CAR FRAME - Google Patents

Abstract

The utility model relates to railway transport and concerns the frames of freight cars, namely the cantilever parts of the frames of freight cars. The cantilever part of the freight car frame contains a center beam (1) with an upper shelf (1.1) and side walls (1.2), an end beam (2) with a front plate (2.1), a pivot beam (3), placed inside the center beam (1) front stop (4) and back stop (5) of automatic couplers and overlap element (6). The technical result, which consists in increasing the rigidity and strength of the cantilever part of the freight car frame, is ensured by the fact that the overlap element (6) is made of length L and overlaps the front stop (4) and back stop (5) of the automatic coupler from above by connecting the outer end edge (6.1) with a front plate (2.1) of the end beam (2), side edges (6.2) with side walls (1.2) of the main beam (1), while the ratio of the length L of the floor element (6) to the length N of the cantilever part from the front stop rosette (4 ) to the O-O axis of the pivot beam (3) is from 0.5 to 0.85. 3 s. p.f-ly, 5 ill.

Description

The claimed utility model relates to railway transport and concerns the frames of freight cars, namely the cantilever parts of the frames of freight cars with an increased length of the consoles.

The cantilever part of the frame is known from the prior art (Carriages: A textbook for universities of railway transport / L.A. Shadur, I.I. Chelnokov et al., Edited by L.A. Shadur - 3rd ed. revised and additional - M.: Transport, 1980, pp. 386-388), containing a main beam, an end beam and a pivot beam, in the cantilever parts of the main beam there are combined front and rear stops of automatic couplers. In the area from the rear stop of the automatic coupler to the pivot beam, the channels of the main beam are covered from below with a sheet.

A central beam of a railway car is known (WO 2009062317, B61F 1/02, B61D 17/00, B61D 7/00, B61F 1/08, publ. absorbing apparatus; the console part has an upper shelf, a lower shelf and side walls, forming a rectangular tube; a carrier plate is installed on the lower shelves, which covers the specified traction lever in the area between the front and rear stops.

A common technical problem of these technical solutions is the insufficient strength and rigidity of the end part of the freight car frame under the action of transverse components of longitudinal forces transmitted through the automatic coupler when the freight car moves in curved tracks due to the lack of a reinforcing element above the front and rear stops.

Known cantilever part of the main beam (RU 23848, B61G 7/12, publ. 07/20/2002), which contains longitudinal channels with upper and lower shelves and side walls, front and rear stops, pivot beam, end beam, lower reinforcing sheet and element floors, while the longitudinal channels are fastened together by the lower reinforcing sheet and the floor element located in the same plane with the upper shelves of the channels. The location of the floor element located in the same plane with the upper flanges of the channels for connecting the rear stop, the pivot beam and the longitudinal channels to each other does not reduce stresses in the area of the front stop of the automatic coupler and in the cantilever part of the frame as a whole.

The technical problem is the insufficient strength and rigidity of the cantilever part of the freight car frame in the area of the front stop of the automatic coupler.

The technical result of the proposed utility model is to increase the rigidity and strength of the cantilever part of the frame of a freight car.

The technical result is provided by the cantilever part of the frame of a freight car, containing the main beam with the upper shelf and side walls, the end beam with the front plate, the pivot beam, the front and rear stops of the automatic coupler and the overlap element located inside the main beam, the overlap element is made of length L and overlaps the front and the back stops of the automatic coupler by connecting the outer end edge with the frontal sheet of the end beam, the side edges with the side walls of the center beam, while the ratio of the length L of the floor element to the length N of the cantilever part from the socket of the front stop to the O-O axis of the pivot beam is from 0, 5 to 0.85.

As a development of the utility model, the length N of the console part can be made from 1500 to 3500 mm; the overlap element can be made of a sheet with cutouts; the overlap element can be made with a thickness S from 5 to 10 mm.

The claimed utility model differs from the prototype in that the overlap element is made of length L and overlaps the front and rear stops of the automatic coupling from above by connecting the outer end edge with the frontal sheet of the end beam, the side edges with the side walls of the main beam, while the ratio of the length L of the overlap element to the length N of the console part from the socket of the front stop to the O-O axis of the pivot beam is from 0.5 to 0.85; the length N of the console part can be made from 1500 to 3500 mm; the overlap element can be made of a sheet with cutouts; the overlap element can be made with a thickness S from 5 to 10 mm. Such a difference from the prototype gives reason to assert that the proposed technical solution meets the criterion of patentability of a utility model - "novelty".

The claimed technical solution is illustrated by graphic images, where in Fig. 1 shows the cantilever part of the frame of a freight car without the top sheet of the center beam, top view; in fig. 2 - cantilever part of the center beam of the freight car frame, side view; in fig. 3 - center beam without the top sheet of the cantilever part of the frame of a freight car, isometric view; in fig. 4 - a fragment of the calculation model of the frame of a freight car with the distribution of equivalent stresses in compression according to the mode Iv, MPa in the cantilever part of the frame of a freight car; in fig. 5 is an example of the implementation of the utility model.

The cantilever part of the freight car frame (Fig. 1 - Fig. 3) contains a center beam 1 with an upper shelf 1.1 and side walls 1.2, an end beam 2 with a front sheet 2.1, a pivot beam 3 with an O-O axis, placed inside the center beam 1 front stop 4 and back stop 5 of the automatic coupler and a floor element 6. The cantilever part of the frame is made of length N, measured from the socket of the front stop 4 to the O-O axis of the pivot beam 3. The floor element 6 is made of length L.

The technical result, which consists in increasing the rigidity and strength of the cantilever part of the freight car frame, is provided as follows.

The overlap element 6 is made of a sheet of length L and overlaps the front stop 4 and back stop 5 of the automatic coupling from above by connecting the outer end edge 6.1 with the front sheet 2.1 of the end beam 2, the side edges 6.2 with the side walls 1.2 of the spinal beam 1, while the ratio of the length L of the element overlap 6 to the length N of the cantilever part is from 0.5 to 0.85. Going beyond the specified range is not advisable, because. when the ratio of the length L to the length N is less than 0.5, the overlap of the front stop 4 and the back stop 5 is not provided, and at more than 0.85, no greater increase in strength is achieved, but the tare weight and metal consumption increase.

During operation, deformations appear in the cantilever part of the freight car frame under the action of the transverse components of the longitudinal forces transmitted through the automatic coupler when the freight car moves in curves (Fig. 4). This design provides an increase in the rigidity of the main beam 1 and the strength of the end beam 2 when receiving loads, in addition, the floor element 6 is a limiter to prevent the draft gear (not shown) from rising under shock loads.

In embodiments of the utility model, the length N of the console part is made from 1500 to 3500 mm; the overlap element 6 can be made from a sheet with cutouts 6.3.

As a development of the utility model, the floor element 6 is made with a thickness S of 5 to 10 mm. Thickness less than 5 mm does not meet the strength requirements. The use of the overlap element 6 from a sheet whose thickness exceeds 10 mm will not provide greater strength, but will lead to an increase in tare weight and metal consumption.

A specific example of the use of the utility model is a platform car for transporting containers with cantilever parts of the frame of increased length (Fig. 5).

Claims (4)

1. The cantilever part of the frame of a freight car, containing a center beam with an upper shelf and side walls, an end beam with a frontal sheet, a pivot beam, front and rear stops of an automatic coupler and a floor element located inside the center beam, characterized in that the floor element is made of length L and covers from above the front and rear stops of the automatic coupler by connecting the outer end edge with the front plate of the end beam, the side edges with the side walls of the main beam, while the ratio of the length L of the overlap element to the length N of the cantilever part from the socket of the front stop to the O-O axis of the pivot beam is from 0.5 to 0.85. 2. The console part of the frame according to claim 1, characterized in that the length N of the console part is made from 1500 to 3500 mm. 3. The cantilever part of the frame according to claim 1, characterized in that the overlap element is made of a sheet with cutouts. 4. The cantilever part of the frame according to any one of claims 1, 3, characterized in that the overlap element is made with a thickness S of 5 to 10 mm.

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