RU212969U1 - ASSEMBLY FOR FASTENING THE BOILER TO THE FRAME OF THE TANK CAR - Google Patents

Abstract

The utility model relates to the field of railway transport, in particular to the structures of tank cars, namely to the attachment of the boiler to the frame of the car. Boiler fastening unit to the frame of the tank car, containing the boiler foot 4, rigidly fixed to the shell of the boiler 2 and the frame 1 of the tank car by means of fastening elements, characterized in that the boiler foot 4 is L-shaped, directed outward, with fixed between two its shelves with a scarf 5, while the scarf 5 and the shelf of the L-shaped element of the boiler foot 4 directed downward form an angle α in the range from 90 to 120 degrees, and the same shelf with the axis of symmetry form an angle β in the range from 0 to 60 degrees. The technical result of the utility model is to increase the manufacturability of the assembly and, accordingly, to reduce the labor intensity in manufacturing.

Description

Technical field

The utility model relates to the field of railway transport, in particular to the structures of tank cars, namely to the attachment of the boiler to the frame of the car.

State of the art

The prior art tank car for the transportation of strong nitric acid (acid melange) model 15-1406 (ZHKTs-39), containing a boiler mounted on a frame mounted on undercarriages. The boiler of the tank car is made of aluminum alloy of the AD0 grade, contains a shell and bottoms and is equipped with shaped legs of the boiler. The boiler of the tank car is fixed on the frame by connecting the legs of the boiler with the legs of the frame.

The disadvantage of the technical solution is the insufficient strength of the shaped legs of the boiler, made of aluminum alloy, which leads to mechanical wear of parts, to structural damage to the attachment of the boiler to the frame of the tank car, as well as to cracks in the welds of the shaped legs.

Known is the attachment point of the boiler on the frame of the tank car (patent RU No. 194149, B61D5/06, publ. 29.11.2019), containing the legs of the boiler, rigidly fixed to the shell of the boiler, connected by clean bolts with the legs of the frame, rigidly fixed to the top shelf of the main beam by means of longitudinal welds, between the frame legs and the frame main beam there are gussets fixed, which are connected to the frame legs and to the boiler legs with clean bolts, while the gussets are located in the area of the ends of the frame legs and are made in the form of bent curly plates.

The disadvantages of this solution is the limitation of application. The utility model is not applicable to railcars made of aluminum and aluminum alloys.

Known tank car for the transportation of highly corrosive goods (patent RU No. 177727, B61D5/06, publ. 03/06/2018), for example, strong nitric acid. The tank car contains a boiler mounted on a frame mounted on the undercarriage. The boiler, made of aluminum alloy, contains a shell, bottoms and legs of the boiler. The paws of the tank car boiler are made with holes for connection with the paws of the frame structure by means of fastening elements and with slots in the shelves for welded connection of the paws with the shell of the tank car boiler. The paws of the boiler are made of two L-shaped components. The shelves of the constituent elements of the legs of the boiler are multidirectional and are fixed on the shell of the boiler of the tank car. The claimed utility model with its entire set of essential features makes it possible to increase the reliability of the tank car by providing the conditions for the strength of the boiler attachment to the frame structure and the boiler feet in particular.

The disadvantage of the technical solution is the complexity of manufacturing and, accordingly, the lack of manufacturability. In the design of this utility model, there are at least two elements, the manufacture of which includes several complex operations, as well as the presence of an L-shaped element directed inward, limiting the placement of the “stamping (tray)” in the boiler and drain equipment.

This design is taken as the closest analogue.

Utility Model Disclosure

The technical result of the utility model is to increase the manufacturability of the assembly and, accordingly, to reduce the labor intensity in manufacturing.

The technical result is achieved due to the fact that in the mount of the boiler to the frame of the tank car, containing the boiler leg 4, rigidly fixed to the shell of the boiler 2 and the frame 1 of the tank car by means of fastening elements, the new thing is that the boiler leg 4 is made G- shaped, directed outward, with a scarf 5 fixed between its two shelves, while the scarf 5 and the shelf of the L-shaped element of the boiler foot 4, directed downwards, form an angle α in the range from 90 to 120 degrees, and the same shelf with the axis symmetries form an angle β in the range from 0 to 60 degrees.

The utility model is supplemented by particular features that contribute to the achievement of the technical result. So, the boiler foot 4 and the scarf 5 are made with a thickness in the range from 10 to 30 mm, the scarf 5 acts as a stiffener and is rigidly fixed between the shelves of the boiler foot 4. The design of the attachment to the frame of the tank car is made of aluminum alloys.

The utility model is illustrated by drawings, where in Fig. 1 shows a side view of the attachment of the boiler to the frame of the tank car; in fig. 2 - section A-A of the attachment point of the boiler to the frame of the tank car, fig. 3 is a general view of a tank car with a mount.

In the drawings, the structural elements of the attachment of the boiler to the frame of the tank car are indicated by the following positions:

1 - frame of the tank car;

2 – tank car boiler;

3 - paw of the frame;

4 - paw of the boiler;

5 - scarf.

The assembly of the boiler attachment to the frame of the tank car contains a boiler foot 4 of an L-shaped shape directed outward, with a scarf 5 fixed between its two shelves, forming a triangle in cross-section together with the shelves, rigidly fixed to the boiler shell 2 and the frame foot 3 by fastening elements ( conditionally not shown), for example, with clean bolts, a stud, a self-locking bolt or a rivet, the foot of the frame 3 is rigidly fixed to the frame 1 of the tank car also by means of fasteners.

The kerchief 5 and the shelf of the L-shaped element of the boiler foot 4, directed downward, form an angle α in the range from 90 to 120 degrees, and the angle β between the same shelf and the axis of symmetry is in the range from 0 to 60 degrees. The thickness of the legs of the boiler 4 and scarves 5 vary from 10 to 30 mm.

Thus, the kerchief 5 (plate) acts as a stiffening rib and is a simple part that can be made from a sheet of metal or strip using a cutting machine (“guillotine”).

The design of the attachment point to the frame of the tank car, made of aluminum alloys, is not inferior in strength to its counterpart, which has a positive effect on the reliability of the car as a whole.

Claims (4)

1. Assembly of the boiler to the frame of the tank car, containing the paw of the boiler (4), rigidly fixed to the shell of the boiler (2) and the frame (1) of the tank car by means of fastening elements, characterized in that the paw of the boiler (4) is made Г- shaped, directed outward, with a scarf (5) fixed between its two shelves, while the scarf (5) and the shelf of the L-shaped element of the boiler foot (4), directed downwards, form an angle α in the range from 90 to 120 °, and the same shelf with the axis of symmetry form an angle β in the range from 0 to 60°. 2. The unit according to claim 1, characterized in that the boiler foot (4) and the scarf (5) are made with a thickness in the range from 10 to 30 mm. 3. The unit according to claim 1, characterized in that the scarf (5) acts as a stiffener and is rigidly fixed between the legs of the boiler (4). 4. The unit according to claim 1, characterized in that the design of the attachment unit to the frame of the tank car is made of aluminum alloys.

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