TANK CAR

Abstract

The utility model relates to the design of a tank car, in particular its boiler. The tank car comprises running gear (1), a boiler (2) with a shell (3) that includes middle sections (3.1), end conical sections (3.2), and a bottom (3.3). The joints of the middle sections (3.1) of the boiler (2) are made with a relative offset of the longitudinal welds by a pitch Z in the range of nominal dimensions from 100 to 300 mm, with a tolerance field of Шz=300-100=200 mm, in particular Z=200±100 mm. The opening Gzl for the boiler filler neck (2) is offset relative to the weld seam connecting the middle sections by a distance Z1 in the nominal size range from 150 to 250 mm, with a tolerance field Шz1=250-150=100 mm, in particular, Z1=200±50 mm. The utility model increases the strength of the tank car. 2 reference digits, 4 figs.

Description

[0001] A tank car is known, containing running gear, a boiler made in the form of a shell assembled from two middle sections connected to each other, two end conical sections with bottoms, see RU 173215 U1, B61D 5 / 00, published 16.08.2017 (prototype).

[0002] The technical problem specific to this tank car is the low strength of its boiler.

[0003] The technical result of the utility model is to increase the strength of the tank car.

[0004] The specified technical result is achieved by a tank car containing running gear, a boiler with a shell, the shell is made of interconnected middle columns, end conical columns with bottoms,

[0005] - the middle columns can be interconnected with a relative displacement of their longitudinal welds by step Z, performed in the range of nominal dimensions from 100 to 300 mm, while the tolerance field ШZ for nominal dimensions from the specified range is equal to the difference in the values ​​of the limit nominal dimensions of step Z, Ш z =300-100=200 mm,

[0006] - the opening for the boiler filler neck can be offset relative to the weld seam connecting the middle columns by a distance Z1, made in the range of nominal dimensions from 150 to 250 mm, while the tolerance field Шz1 for nominal dimensions from the specified range is equal to the difference in the values ​​of the maximum nominal dimensions of the distance Z1, Шz1=250-150=100 mm;

[0007] - the middle tsars can be interconnected with a relative displacement of their longitudinal welds by a step Z, made with a nominal size of 200 mm and a tolerance field of ±100 mm, Z=200±100 mm,

[0008] - the hole for the boiler filler neck can be shifted by a distance Z1 relative to the weld seam connecting the middle columns, made with a nominal size of 200 mm and a tolerance of ±50 mm, Z1=200±50 mm,

[0009] - the boiler shell in its middle can be made with a bend in its longitudinal axis with a slope of α=5° +3,0° -4,5° from the horizontal at both ends of the boiler,

[0010] - the end conical columns can be made in the form of a truncated cone with an angle β of the cone solution equal to β=3° +3° -2° ;

[0011] - the boiler shell columns can be made with a thickness S from 8 to 12 mm.

[0012] The utility model differs from the prototype in that

[0013] - the middle columns can be interconnected with a relative displacement of their longitudinal welds by step Z, performed in the range of nominal dimensions from 100 to 300 mm, while the tolerance field IIIZ for nominal dimensions from the specified range is equal to the difference in the values ​​of the limit nominal dimensions of step Z, Ш z =300-100=200 mm,

[0014] - the opening for the boiler filler neck can be offset relative to the weld seam connecting the middle columns by a distance Z1, made in the range of nominal dimensions from 150 to 250 mm, while the tolerance field Шz1 for nominal dimensions from the specified range is equal to the difference in the values ​​of the maximum nominal dimensions of the step Z1, Шz1=250-150=100 mm;

[0015] - the middle tsars can be interconnected with a relative displacement of their longitudinal welds by a step Z, made with a nominal size of 200 mm and a tolerance of ±100 mm, Z=200±100 mm,

[0016] - the hole for the boiler filler neck can be shifted by a distance Z1 relative to the weld seam connecting the middle columns, made with a nominal size of 200 mm and a tolerance of ±50 mm, Z1=200±50 mm,

[0017] - the boiler shell in its middle can be made with a bend in its longitudinal axis with a slope of α=5° +3,0° -4,5° from the horizontal at both ends of the boiler,

[0018] - the end conical columns can be made in the form of a truncated cone with an angle β of the cone solution equal to β=3° +3° -2° ;

[0019] - the boiler shell columns can be made with a thickness S from 8 to 12 mm.

[0020] Such differences provide grounds to assert that the proposed technical solution meets the patentability criterion of a utility model - “novelty”.

[0021] The utility model is presented in the drawings, where:

[0022] - in Fig. 1 - a tank car with a boiler of the proposed design, general

[0023] view;

[0024] - Fig. 2 - tank car boiler, other parts of the tank car are not shown, side view;

[0025] - Fig. 3 - cutting diagram of the shell of the tank car boiler;

[0026] - in Fig. 4 - the end section of the tank car boiler with the bottom. The tank car contains running gear 1 (Fig. 1), a boiler 2 with a shell 3.

[0027] The shell 3 includes two connected middle columns 3.1 (Fig. 2), two end conical columns 3.2 with fixed bottoms 3.3.

[0028] To increase the strength of the shell 3, its middle tsars 3.1 are mutually connected to each other by a circumferential weld with a relative displacement of their longitudinal welds connecting the ends of each middle tsar 3.1 by step Z, made in the range of nominal dimensions from 100 to 300 mm, while the tolerance field Ш z for nominal dimensions from the specified range is equal to the difference in the values ​​of the maximum nominal dimensions of the pitch Z, Ш z =300-100=200 mm.

[0029] As a specific example of implementation, the Z-step can be implemented with a nominal dimension of 200 mm and a tolerance field of ±100 mm, Z=200±100 mm (Fig. 3). This offset allows for the longitudinal weld seams to be spaced apart, which contributes to a more uniform distribution of internal mechanical stresses in the middle sections 3.1 of shell 3.

[0030] Also to increase the strength of the boiler 2 hole G зл for the filler neck of boiler 2, it is shifted by a distance Z1 relative to the weld seam connecting the middle columns 3.1, while the distance Z1 is made in the range of nominal dimensions from 150 to 250 mm, while the tolerance field Шz1 for nominal dimensions from the specified range is equal to the difference in the values ​​of the limit nominal dimensions of the distance Z1, Шz1=250-150=100 mm.

[0031] Similarly, as a specific example of implementation, distance Z1 can be made with a nominal dimension of 200 mm and a tolerance field of ±50 mm, Z1 = 200 ± 50 mm. This offset helps reduce the weakening of the circumferential weld seam connecting the middle 3.1 sides, which occurs in the hole G. зл for the filler neck.

[0032] To create conditional elasticity in the middle part of the boiler 2 within the given strength conditions, the shell 3 in its middle can be made with a bend of its longitudinal axis in a vertical plane with a slope of α=5° +3,0° 4.5° at both ends of boiler 2. This bend allows for elastic compensation of part of the vertical dynamic loads on boiler 2 during transportation of liquid cargo.

[0033] End conical columns 3.2 can be made in the form of a truncated cone with an angle β of the cone solution equal to β=3° +3° -2°. (Fig. 4). The design of the end rails 3.2 as conical reduces the dynamic loads that occur when the tank car passes through curved sections of the track. In addition, the design of the end rails 3.2 as conical with angle parameters β=3° +3° -2° , as the outermost protruding elements of boiler 2, facilitates the tank car's fit into the railway gauge profile when passing through small-radius curves. In this case, the use of tapered ends of conical 3.2 allows for an increase in diameter D cpц The middle columns 3.1 are made of metal sheets with a thickness of 8 to 12 mm to increase the boiler's strength.

[0034] The given values ​​of nominal dimensions with symmetrical tolerance fields are special cases of representation of the executive dimensions of a tank car.

[0035] For clarification and explanation, the presented nominal dimensions with execution tolerances without changing the essence may be presented in the following version.

[0036] The Z step can be made in the nominal size range from 100 to 300 mm, with the tolerance field Ш z for nominal dimensions from the specified range is equal to the difference in the values ​​of the maximum nominal dimensions of the pitch Z, Ш z =300-100=200 mm.

[0037] For example, pitch Z, except for Z=200±100 mm, can be produced with any nominal size from 100 to 300 mm with the corresponding tolerance fields not exceeding the limits of their declared value. For example, Z=150 +150 -50 mm. In this case, the total value of the tolerance field Ш z will also correspond to Z step values ​​from 100 to 300 mm, W z =300-100=200 mm. Similarly, the Z step can be made Z=250 +50 -150mm, or with any other value of the nominal size and corresponding tolerances within the specified limits.

[0038] Similarly, the distance Z1 can be made in the nominal size range from 150 to 250 mm, with the tolerance field Ш z1 for nominal dimensions from the specified range should be equal to the difference in the values ​​of the maximum nominal values ​​of the distance Z1, Ш z1 =250-150=100 mm. The Z-distance can be made with any nominal dimension from 150 to 250 mm with the corresponding tolerance fields. For example, Z1=150 +100 mm or Z1=250 mm, or with any other nominal value within the range from 150 to 250 mm with a tolerance field Ш z1 =100 mm.

[0039] Thus, the production of a tank car with the specified parameters of the executive dimensions and their tolerances for boiler 2 of the proposed design contributes to an increase in the strength of the tank car.

Claims

1. A tank car containing running gear, a boiler with a shell, the shell is made of interconnected middle columns, end conical columns with bottoms, characterized in that the middle columns are mutually connected with a relative displacement of their longitudinal welded seams by a pitch Z, performed in the range of nominal dimensions from 100 to 300 mm, while the tolerance field Ш z for nominal pitch sizes Z from the specified range is equal to the difference in the values ​​of the maximum nominal pitch sizes Z, Ш z =300-100=200 mm, the opening for the boiler filler neck is offset relative to the weld seam connecting the middle columns by a distance Z1, made in the range of nominal dimensions from 150 to 250 mm, while the tolerance field is Ш z1 for the nominal dimensions of the distance Z1 from the specified range is equal to the difference in the values ​​of the maximum nominal dimensions of the distance Z1, Ш Z1 =250-150=100 mm.

2. A tank car according to paragraph 1, characterized in that the middle columns are mutually connected with a relative displacement of their longitudinal welds by a step Z, made with a nominal size of 200 mm and a tolerance field of ±100 mm, Z=200±100 mm, the opening for the filler neck of the boiler is shifted by a distance Z1 relative to the weld seam connecting the middle columns, made with a nominal size of 200 mm and a tolerance field of ±50 mm, Z1=200±50 mm, the shell of the boiler in its middle is made with a bend in its longitudinal axis with a slope of α=5° +3,0° -4,5° from the horizontal at both ends of the boiler, the end conical columns are made in the form of a truncated cone with an angle β of the cone opening equal to β=3° +3° -2° .

3. A tank car according to paragraph 1, characterized in that the boiler shell columns are made with a thickness S of 8 to 12 mm.

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