SU1599254A1 - Railway tank - Google Patents

Abstract

This invention relates to railway transport. The aim of the invention is to increase the load capacity by providing the possibility of increasing the diameter of the boiler to a size not exceeding the permissible dimensions of the rolling stock horizontally. The tank consists of horizontally located on the supports of the boiler and running gears. The boiler is a thin-walled jacket supported by ring elements (frames) of variable stiffness. In the zone of the greatest dimensional restrictions / the zone of horizontal diameter / height of the end section of the end grip of each part / frame / is reduced to a minimum, and its profile is changed. Due to this, the boiler volume increases, its load capacity increases, the payload per 1 meter of the track increases, and, consequently, the capacity of railways is increased, which expands the range of oil cargo transported. 4 il.

Description

The invention relates to railway transport, in particular to tanks for the transport of goods of various purposes (liquid, bulk, liquefied gases).

The purpose of the invention is to increase the load capacity by providing the possibility of increasing the diameter of the boiler to a size that exceeds the permissible dimensions of the rolling stock horizontally.

FIG. 1 shows a tank, a general view; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a section BB in FIG. 2; in fig. 4 shows a section B-B in FIG. 2

The railway tank contains a tug 1, strengthened by ring stiffeners 2 (frames), each of which consists of two parts 3 and 4. The end sections 5 and 6 of each part are made of variable cross section and are placed in the boiler in the zone of the greatest overall limitations of the boiler (zone A) in the section plane along the horizontal diameter of the boiler. The end portions of each part are interconnected by means of a lamellar element 7 fixed on the boiler in the zone of the greatest overall limitations - zone A.

The railway tank is operated in a known manner.

The use of ring stiffeners (frames) and the implementation of end sections of each component of a variable cross section allows you to change the stiffness of each ring element along the length, to make it variable in size, which in turn provides the opportunity in the area of the most general dimensional limitations of the tank ( zone A, in cross section along the horizontal diameter of the boiler) reduce the height of the cross section of the annular element to a minimum and, consequently, provide an opportunity to increase the diameter of the boiler.

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At the same time, the rigidity characteristics of ring elements (frames) in other zones are chosen so that the moments of resistance of sections are increased by 14.7% in comparison with ring elements of constant section, which provides the necessary strength of the boiler and ring stiffeners under the action of operational loads.

: In the zone of the largest overall constraints, taking into account the allowable width I of the car, a plate element i is installed to reduce the overall height of the ring: an element whose width may not be: less than the width of the upper shelf according to: m ensuring the convenience of welding. The maximum width of the plate element I is limited by the provision of joint; its operation with the shell of the boiler and the exclusion of mutual influence with the welded I seams of the plate element of the adjacent frame. The length of the plate element is determined by overall limitations on the width of the car and is approximately 0.75 of the inner radius of the boiler shell. The thickness of the plate element is limited by overall restrictions on the horizontal diameter of the boiler, as well as tolerances, and may be 1.3-1.5 times the thickness of the shell.

The ring element (frame) of the boiler is a statically indefinable system from the point of view of structural mechanics. In statically indeterminable systems, the compensation of the effect of the weakening of one of the zones of the system can be ensured by a corresponding strengthening of the adjacent sections of the rods. An increase in the moment of resistance of the cross section of ring elements (frames) by 15–20% is determined by calculations and compensates for the effect of the weakening of the frame.

in the area of dimensional restrictions. This is achieved, for example, by increasing the sectional height of the frames of a constant profile by 20 mm in areas that do not have overall dimensions.

restrictions.

The increase in the internal diameter of the tank boiler is ensured with its length almost unchanged along the coupling axles of the couplings and allows increasing the load carrying capacity and payload by 1 m of track and improving other technical and economic indicators. Compared with an eight-axle tank having a boiler, supported by ring frames of constant stiffness, the internal diameter of the tank boiler,

reinforced with frames of variable stiffness, increases by 200 mm and, as a result, loading capacity - by 8% (when transporting the same type of cargo), the load per 1 m of the route - by 3.4%, specific boiler volume from 1.14 to 1.25 , what

greatly expands the range of cargo

Claims (1)

Invention Formula A railway tank that includes a boiler with annular stiffening elements fixed on it is different because in order to increase its capacity by providing an opportunity to increase the diameter of the boiler to a size not exceeding the permissible dimensions of the rolling composition horizontally Each annular stiffening element is made composite and arranged so that the end sections of each part of the annular element are located in the zone of the cross section along the horizontal diameter of the boiler and have a variable cross-sectional profile th section, the component parts are interconnected by means of plate elements attached to the boiler. .... i y-Uj-Tvf . „- .. with tvr I Go Phi. 2 Fig.Z B- B pover F