RU213127U1 - Side wall of covered wagon - Google Patents

Abstract

The claimed utility model relates to railway transport and concerns the structure of covered wagon bodies, in particular the structure of the side wall of a covered wagon.

The side wall of the covered car (1) contains the top trim (2), racks (3), doorway (4) and sheathing sheets (5). Sheathing is made of sheets with continuous longitudinal corrugations (6), the width of which is in the range from 80 to 100 mm, and the height is from 10 to 25 mm. Corrugations are located along the entire length of the skin. Racks are made of sheet metal in the form of bent channels.

A bar (7) is rigidly fixed at the bottom of each post made of bent channel. Sheathing sheets are rigidly connected to each other by an overlap weld. The cross-sectional dimensions of each post made of bent channel are 108×55×4 mm. The bar installed in each rack from a bent channel is made in the size of 600 × 98 × 4 mm. The bar in the lower part of each post of the bent channel is installed at a distance (L) located in the range from 141 to 145 mm from the bottom end face of the bent channel (8) to the bottom end face of the bar (9).

The utility model makes it possible to create a side wall structure for a covered wagon, providing an increase in the rigidity and strength of the side wall when exposed to operational loads, in combination with a minimum metal consumption. 5 z.p. f-ly, 3 ill.

Description

The claimed utility model relates to railway transport and concerns the structure of covered wagon bodies, in particular the structure of the side wall of a covered wagon.

Known design of the railway universal box car model 11-217, which has a side wall [I.F. Pastukhov, V.V. Lukin, N.I. Zhukov “Vagony”, M., Transport 1988, p. 150], containing a metal frame consisting of corrugated sheets, which includes a strapping, two pivots, six intermediate and two door pillars. The upper trim is made of a corner 90×56×8 mm, the pivot and intermediate posts are made of a bent omega-shaped profile 6 mm thick, and the door pillars are made of a Z-profile 100×75×6.5 mm and a guide angle 75×50× 6 mm. The outer wall cladding is made of corrugated sheets 3 mm thick at the bottom and 2.5 mm at the top. The side wall is made with a doorway 3825 mm wide and side hatch covers with a ventilation grill, which are made of stamped steel sheets 2 mm thick and locks that keep the covers in the closed position. The locks can only be opened from inside the car.

A significant disadvantage of this design is the implementation of pivot and intermediate racks from a bent omega-shaped profile 6 mm thick, which leads to a heavier construction of the side wall of a covered car due to an increased metal frame due to the manufacture of pivot and intermediate racks from an omega-shaped profile. Another significant disadvantage is the use of periodical corrugations on the sheathing sheets. During the formation of periodic corrugations, uneven tightening of the metal occurs, which leads to the formation of residual stresses in the corners of the corrugations and an increase in deviations from the flatness of the profiles, after connecting the two profiles into a one-piece assembly unit, the deviations from the flatness increase even more, which leads to the appearance of gaps between the skin and the frame, not regulated by regulatory documents for welded joints. When the gaps are eliminated, the skin is deformed, thereby worsening the appearance of the new product and increasing the residual stresses in the side wall structure, in addition, the straight section between the profiles of the posts and the periodic corrugations on the skin sheets is significantly inferior to the rigidity of the corrugations and the posts. These shortcomings lead during the operation of the side wall of a covered car to the occurrence of cracks in the corners of the periodic corrugations and in straight sections between the post and the corrugation, as well as to the separation of the sheathing panel from the frame along the welds.

Also known is the design of the side wall of a covered freight car [RF Patent for utility model No. 203196 published on March 25, 2021], consisting of an upper trim, racks, a doorway with a lower guide for doors and door pillars, and a sheathing made of sheets with periodic corrugations, moreover, the racks are made of channels bent from a sheet. The dimensions of the channel section are 110×75×4 mm and 110×75×5 mm. The side wall is an integral part of the covered railway car and consists of the top framing, posts, door posts, door guides and skins. The side wall is a rigid welded structure containing a top trim, a guide designed for doors, and door posts that form a doorway. Sheathing is made of two (along the height of the wall) longitudinal sheets with periodic corrugations of the same thickness. Sheathing (to increase the height of the wall) can be supplemented with a third row of sheets, both containing periodic corrugations and without them.

This design is chosen as a prototype for the claimed utility model.

The disadvantage of this design is the difficulty of assembling the sheathing panel, which consists in the need to combine the corrugations of the upper and lower sheets along the length to ensure welding of the frame, since the length of the corrugations varies within tolerance, as well as the complexity of welding the sheathing panel with the frame, which lies in the fact that during formation periodic corrugations, uneven tightening of the metal occurs, which leads to the formation of residual stresses in the corners of the corrugations and an increase in deviations from the flatness of the profiles, which leads to the fact that during the manufacture of the side wall or during operation, large residual stresses arise in the structure of the side wall, which can lead to various cracks and fractures. Another disadvantage is that the straight section between the stud profiles and the periodic corrugations on the sheathing sheets is significantly inferior to the rigidity of the corrugations and studs. This leads to cracks in the corners of the periodic corrugations and in the straight sections between the post and the corrugation during the operation of a covered wagon.

The above disadvantages lead to a significant increase in the cost of manufacturing the structure of the side wall of a covered wagon.

The objective to be solved by the claimed utility model is to create a boxcar side wall structure that provides increased rigidity and strength of the side wall, reduced weight of the boxed car side wall using profiles already introduced into production, as well as reducing labor costs in the manufacture of the side wall.

The problem is solved due to the fact that the skin is made of sheets with continuous longitudinal corrugations, the width of which is in the range from 80 to 100 mm, and the height is in the range from 10 to 25 mm, located along the entire length of the skin, while the racks are made of sheet metal in the form of bent channels.

The essence of the proposed design lies in the fact that the side wall of a covered wagon includes an upper trim, racks, a doorway, as well as sheathing sheets, and the sheathing is made of sheets with continuous longitudinal corrugations, the width of which is in the range from 80 to 100 mm, and the height is in the range from 10 to 25 mm, located along the entire length of the skin, while the racks are made of sheet metal in the form of bent channels.

A bar is rigidly fixed at the bottom of each rack made of bent channel.

Sheathing sheets are rigidly connected to each other by an overlap weld.

The cross-sectional dimensions of each post made of bent channel are 108×55×4 mm.

The bar installed in each rack from a bent channel is made in the size of 600 × 98 × 4 mm.

The bar in the lower part of each post of the bent channel is installed at a distance located in the range from 141 to 145 mm from the lower end face of the bent channel to the lower end face of the bar.

The essence of the claimed utility model is illustrated by drawings:

Fig. 1 – general view of the wall of the side covered wagon;

Fig. 2 - side wall rack;

Fig. 3 - side wall post (section A-A).

The side wall of the covered car (1) contains the top trim (2), racks (3), doorway (4) and sheathing sheets (5). Sheathing (5) is made of sheets with continuous longitudinal corrugations (6), the width of which is in the range from 80 to 100 mm, and the height is in the range from 10 to 25 mm. Corrugations (6) are located along the entire length of the skin (5). Racks (3) are made of sheet metal in the form of bent channels.

A bar (7) is rigidly fixed at the bottom of each post (3) made of a bent channel.

Sheathing sheets (5) are rigidly connected to each other by an overlap weld.

The cross-sectional dimensions of each post (3) from a bent channel are
108×55×4 mm.

The bar (7) installed in each rack (3) from a bent channel is made in the size of 600×98×4 mm.

The bar (7) in the lower part of each bent channel post is installed at a distance (L) located in the range from 141 to 145 mm from the lower end face of the bent channel (8) to the lower end face of the bar (9).

The technical result of the claimed utility model is that the side wall sheathing is made of sheets with continuous longitudinal corrugations located along the entire length of the sheathing, while the racks are made of sheet metal in the form of bent channels, which makes it possible to reduce the metal consumption of the side wall structure, increase the useful characteristics of the side walls (increase in strength and rigidity), reduce the weight of the side wall structure through the use of cheap sheet metal (curved channels).

The implementation of a rigidly fixed strip in the lower part of each post from a bent channel increases the strength qualities of the assembly for embedding the side wall post into the boxcar frame.

The execution of sheathing sheets, which are rigidly connected to each other by an overlap weld, ensures the strength and rigidity of the structure of the wall of the side covered car.

The implementation of the cross-sectional dimensions of each rack of bent channel, equal to 108×55×4 mm, reduces the metal consumption of the side wall structure through the use of cheap sheet metal (curved channel).

The implementation of a bar installed in each rack of a bent channel, 600 × 98 × 4 mm in size and located at a distance (L) in the range from 141 to 145 mm from the lower end face of the bent channel to the lower end face of the bar, makes it possible to increase the rigidity of the side wall racks and reduce the weight of the wall of the side box car by changing the design of the racks.

Currently, design documentation has been developed for the claimed utility model, and comprehensive testing of prototypes is being carried out.

Claims (6)

1. The side wall of a covered car, including the upper trim, racks, doorway, and sheathing sheets, characterized in that the sheathing is made of sheets with continuous longitudinal corrugations, the width of which is in the range from 80 to 100 mm, and the height is in the range from 10 to 25 mm, located along the entire length of the skin, while the racks are made of sheet metal in the form of bent channels. 2. The side wall of a covered wagon according to claim 1, characterized in that a bar is rigidly fixed in the lower part of each rack from a bent channel. 3. The side wall of a covered wagon according to claim 1, characterized in that the skin sheets are rigidly interconnected by an overlap weld. 4. The side wall of a covered wagon according to claim 1, characterized in that the cross-sectional dimensions of each rack made of a bent channel are 108 × 55 × 4 mm. 5. The side wall of a covered wagon according to claim 2, characterized in that the bar installed in each rack from a bent channel is made in the size of 600 × 98 × 4 mm. 6. The side wall of the covered wagon according to claim 2, characterized in that the bar in the lower part of each rack of bent channel is installed at a distance located in the range from 141 to 145 mm from the lower end face of the bent channel to the lower end face of the bar.

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