RU173628U1 - WALL OF THE SIDE OF RAILWAY SEMI-CAR - Google Patents

Abstract

The utility model relates to railway transport and relates to the construction of the end wall of a gondola car body. The technical problem solved by this utility model is the creation of a wall structure of the end railroad gondola car that would provide an improvement in its technical characteristics compared to well-known analogues, namely, would allow to increase the strength and durability of the product in combination with a decrease in material consumption and labor costs for manufacturing . The technical result, which this technical solution is aimed at, is to increase the strength of the end wall, which, in turn, increases the durability of the entire body of the gondola car. racks, middle racks, upper trim and belts, according to a utility model, the belts are made of alternating rectangular and square profiles in cross section. A staircase is made on the frame. The rectangular profile of the belt has dimensions: H - from 100 to 200 mm, L - from 50 to 200 mm, t - from 5 to 16 mm. The square profile of the belt has dimensions: H - from 100 to 200 mm, t - from 5 to 16 mm.

Description

The utility model relates to railway transport and relates to the construction of the end wall of a gondola car body.

There are various technical solutions in this area.

The patent RU No. 101419 for the utility model “The front part of the body of a universal gondola car” is known (IPC B61D 17/00, published on January 20, 2011). The end part of the body of a universal gondola car includes a frontal beam mounted on the spinal beam of the body frame, containing vertical walls welded together, upper horizontal and lower inclined shelves, and an end wall welded to the frontal beam and made of upper trim, extreme and middle vertical struts, connecting the end wall with the frontal beam, sheet sheathing and a number of horizontal bearing belts. The upper horizontal shelf of the frontal beam is vertically folded upward and the vertical wall of the frontal beam is superimposed with overlapping welding to form a ledge, in which the sheet skin of the end wall is placed and likewise welded, while the extreme and middle vertical posts are made with flat bonding surfaces and superimposed by these surfaces on the vertical wall of the frontal beam.

In this patent there are no horizontal belts, which significantly reduces the structural strength.

The patent RU No. 164028 for the utility model “The end wall of a railway gondola car” is known (IPC B61D 17/06, B62D 33/023, publ. 08/20/2016). The end wall of a railway gondola car contains a sheathing sheet and a frame consisting of extreme racks, middle racks, upper strapping and belts of solid profiles, while the belts and extreme racks are installed on one plane on one side and one belt protrudes on the other side with a front surface front surfaces of extreme racks. The difference between the front surface of the belt and the front surface of the extreme rack in the node of their connection is eliminated by beveling the extreme part of the belt, smoothly passing from the height of the belt to the height of the rack.

The disadvantages of the analogue is that the horizontal belt 6 is made in the form of an I-beam, inside which water and debris accumulate. Also, when installed in the end wall in the belt 6, it is necessary to make bevels of the edges in the corners, which increases the complexity of manufacturing the entire wall structure.

Also known patent RU No. 2341389 for the invention "The wall of the body of a freight car side and / or end" (IPC B61D 17/06, publ. 20.12.2008). The wall of the body of the freight car side and / or end is made of hollow extruded panels and has corner posts, upper and lower strapping of extruded profile. The panels are located in the horizontal direction along the length and consist of two flat outer walls and internal stiffeners. The length of the panels is equal to the length of the wall, and the walls of the panels have a thickness of 3-6 mm, and the distance between them is 40-120 mm. The walls of the panels may have the same or different thickness. The internal stiffening ribs of the panels have a thickness of 2-4 mm, and their angle of inclination to each other is 60 °.

The disadvantages of this analogue are the high complexity and high cost of manufacturing aluminum panels with numerous stiffeners.

Known patent RU No. 74610 for the utility model "Railway gondola" (IPC B61D 17/06, B61D 3/00, publ. 10.07.2008). The essence of the utility model is to strengthen and improve a railway gondola car containing two bogies, an auto brake, a parking brake, a frame, two automatic coupler installations, a body with hatch covers installed, mounted on the frame and including two side walls and two end walls, which are made in the form of welded structures , each of which contains a top harness, a bottom harness, two corner posts, a panel, two belts and two stands. In this case, the upper belt and the lower belt are made of an Ω-shaped profile and when welding it to the panel, a closed loop is created for the entire width of the end wall, and each of the racks is made of a U-shaped profile and consists of two parts - a middle rack and a lower rack, which are welded to the upper belt, panel, lower belt, forming a closed profile along the entire length of the fastening.

The disadvantages of the analogue are that the omega-shaped profile of the end wall belt adds additional weight to the car body and also this type of profile has a great manufacturing complexity due to the use of special rolling equipment or additional bending operations, therefore, the cost of the product increases significantly.

The patent RU No. 126296 for the utility model “End wall of a gondola car” is known (IPC B61D 17/06, published on 03/27/2013). Three horizontal reinforcing elements made of a channel with a lower moment of resistance are adjacent to the vertical reinforcing elements made of an I-beam. The upper harness is made of a closed box-section profile, and the corner posts are made of a channel. Thanks to the powerful vertical reinforcing elements connected to the powerful upper strapping, the necessary strength of the end wall from the effects of longitudinal forces is provided.

The disadvantages of the analogue is that the end wall of this design does not quite rationally take into account the nature of the load, so the mass of such a wall will be larger due to the large cross section of the vertical elements and the upper trim.

The closest in technical essence to the proposed utility model is the patent RU No. 2566829 for the invention “The end wall of a railway gondola car” (IPC B61D 17/06, B61D 3/00, published on 10.27.2015), which is selected as a prototype. The end wall of the railway gondola contains a sheathing sheet and a frame, consisting of extreme racks, middle racks, upper strapping and belts. The belts and extreme racks are installed on one plane on the one hand, and on the other hand, at least one belt made of composite main profiles and connecting elements acts as the front surfaces of the main profiles beyond the front surfaces of the extreme racks.

The disadvantages of the prototype compared with the proposed utility model are increased metal consumption and additional labor costs for the manufacture of a composite belt of the end wall, which includes three parts, and, accordingly, it is necessary to perform two additional longitudinal welds. The presence of welds also reduces the overall strength of the product.

The technical problem solved by this utility model is the creation of a wall structure of the end railway gondola car, which would provide an improvement in its technical characteristics compared to well-known analogues, namely, it would allow to increase the strength and durability of the product in combination with a decrease in material consumption and reduction of overall labor costs manufacture.

The technical result, which is aimed at this technical solution, is to increase the strength of the end wall, which, in turn, increases the durability of the entire body of the gondola car.

The technical result is achieved by the fact that in the wall of the end railway gondola containing the sheathing sheet and the carcass, consisting of extreme racks, middle racks, upper strapping and belts, according to a utility model, the belts are made of alternating rectangular and square profiles in cross section. A ladder is fixed to the frame. The rectangular profile of the belt has the following possible ranges of sizes in the cross section: N - from 100 to 200 mm, L - from 50 to 200 mm, t - from 5 to 16 mm. The square profile of the belt has the following possible ranges of sizes in the cross section: H - from 100 to 200 mm, t - from 5 to 16 mm. H and L are the lengths of the sides of the profile, t is the thickness of the profile. Most preferred sizes are

for a rectangular profile: N - 170 mm, L - 160 mm, t - 8 mm;

for a square profile: N - 150 mm, t - 8 mm.

The essence of the utility model is illustrated by the following figures:

FIG. 1, which presents the proposed end wall, where:

1 - sheet sheathing;

2 - frame;

3 - extreme racks;

4 - middle racks;

5 - upper harness;

6 - belts;

7 - a ladder;

and FIG. 2, which shows a section BB of FIG. 1, where:

8 - a rectangular profile of the belt;

9 - square profile of the belt.

The end wall of a railway gondola car contains a sheathing sheet 1 and a frame 2 with a ladder 7, consisting of extreme racks 3, middle racks 4, upper trim 5 and belts 6. Each belt is made of cross-sectional profiles that are different in configuration, namely, the belt is made as a combination rectangular 8 and square 9 profiles.

The rectangular 8 profile of the belt has dimensions: H - from 100 to 200 mm, L - from 50 to 200 mm, t - from 5 to 16 mm. The square 9 belt profile has dimensions: H - from 100 to 200 mm, t - from 5 to 16 mm.

The presented ranges of numbers cover the existing loads on the end wall belts, lower values of H, L, t are inappropriate from the point of view of insufficient strength, large values are inappropriate from the point of view of the large mass of the profile and its dimensions.

Each type of profile has its own strength and metal consumption.

Rectangular 8 profile has greater strength in the horizontal direction, i.e. where there are the greatest loads in the end wall (belts in the end wall), due to which the metal consumption is reduced in comparison with the square profile (calculation is presented below).

The square 9 profile has an equal strength section, its strength properties in the end wall are the same both vertically and horizontally. In the end wall, the use of a square 9 profile will slightly increase mass compared to a rectangular 8, but a square 9 profile of similar strength has a smaller overall dimension (calculation is presented below).

For example, on an end wall zone acting load: bending moment m * 4.2 m, the allowable metal stress profiles 325 MPa, modulus 129 cm ^3, the strength of the profile select:

rectangular profile (dimensions: 160 × 80 × 8 mm, length 3000 mm, profile weight 82 kg);

square profile (dimensions: 131 × 131 × 8 mm, length 3000 mm, profile weight 86 kg).

Saving metal is 86-82 = 4 kg on one profile. In a carriage, as a rule, there are 6-8 pieces of such profiles on the end walls, therefore, savings on one carriage are 24-32 kg compared to currently used cars on 1000 cars 24-32 tons, which costs 600- 800 thousand rubles / 1000 wagons.

Thus, the claimed utility model was tested as a prototype of the end wall, which is manufactured under industrial conditions and is intended for use in industrial purposes, namely in railway gondola cars, which allows us to consider the claimed utility model to meet the patentability criterion of “industrial applicability”.

The use of a combination of belts with various forms of profiles in the cross section allows one to take into account the uneven distribution of the load on the end wall, ensuring its strength and durability, as well as reducing the cost of the entire product compared to existing analogues by reducing the metal consumption and reducing labor costs for manufacturing.

Claims (6)

1. The end wall of the railway gondola car, containing the sheathing sheet and the frame, consisting of extreme racks, middle racks, upper strapping and belts, characterized in that the belts are made of alternating rectangular and square profiles in cross section. 2. The end wall according to claim 1, characterized in that the rectangular profile of the belt has dimensions in cross section: H - from 100 to 200 mm, L - from 50 to 200 mm, t - from 5 to 16 mm, where H and L are the lengths of the sides of the profile, t is the thickness of the profile. 3. The end wall according to claim 2, characterized in that the rectangular profile of the belt has dimensions in cross section: H - 170 mm, L - 160 mm, t - 8 mm. 4. The end wall according to claim 1, characterized in that the square profile of the belt has dimensions: H - from 100 to 200 mm, t - from 5 to 16 mm, where H is the length of the sides of the profile, t is the thickness of the profile. 5. The end wall according to claim 4, characterized in that the square profile of the belt has dimensions H - 150 mm, t - 8 mm. 6. The end wall according to claim 1, characterized in that a ladder is fixed to the frame.

Images