EP2024257A1

EP2024257A1 - Tank container

Info

Publication number: EP2024257A1
Application number: EP06849392A
Authority: EP
Inventors: Susanne Romanus; Helge Tenzler; Dieter Pfau
Original assignee: WEW Westerwaelder Eisenwerk GmbH
Current assignee: WEW Westerwaelder Eisenwerk GmbH
Priority date: 2006-05-30
Filing date: 2006-12-21
Publication date: 2009-02-18
Anticipated expiration: 2026-12-21
Also published as: CN101500909A; WO2007137619A1; ZA200810144B; US8297459B2; EP2024257B1; ATE461888T1; CN101500909B; US20110049165A1; DE202006008574U1; DE502006006540D1

Abstract

The present invention relates to a tank container (1) having a tank (2) and a framework which receives the tank (2) via end frames (3). Here, the end frames (3) are connected to one another in the lower region via a longitudinal frame structure (5), wherein at least two lateral longitudinal carriers (12) are provided which, in their end regions, have in each case one lateral diagonal member (14) which extends between the longitudinal carrier (12) and a corner support (18) and one base diagonal member (16) which extends between the longitudinal carrier (12) and a lower transverse spar (26, 26′), wherein the base diagonal member (16) and/or the lateral diagonal member (14) have/has an open cross-sectional profile.

Description

tank containers

The present invention relates to a tank container with a tank and a tank on the front frame receiving framework. In this case, the end frames are connected to one another in the lower region via a longitudinal frame structure which has two lateral side members, wherein these are additionally connected in their end regions via a side diagonal and a floor diagonal to the front frames. The side diagonals each run obliquely in lateral vertical planes between the side members and a corner support and the floor diagonals - also obliquely - in a horizontal plane close to the floor between the side member and a lower cross member. Corner support and lower cross member are elements of the front frame.

Tank containers in which the tank is each coupled to an end frame at its front ends are known, for example, from DE 202 11 594 U1, DE 297 05 851 U1 and from EP 0 425 190 A1.

DE 297 05 851 Ul and DE 202 11 594 Ul show a coupling between the tank and the end frame via so-called. Stirnringsattelungen.

EP 04 25 190 A1 shows special saddle elements which connect the tank, in particular in the region of the corner fittings, to the end frame. So transport and handling forces should be transferred as directly as possible and in particular in the area of the lower corner fittings in the corner fittings. However, such saddle structures have the disadvantage that they are expensive to manufacture and make it difficult to isolate the tank, since on the one hand insulating layers and covers must be interrupted in this area and on the other hand represent the special saddle structures thermal bridges, which is a large heat transfer between the tank and the environment cause. In order to solve this problem, now tank containers are predominantly made in which the tank is connected only via end rings or end ring segments with the front frame. For reinforcement and stabilization the end frames are provided with each other, at least in the region of the lower corner fittings, with additional longitudinal frame structures.

Such a tank container, Figs. 7 to 9. Here, the tank container 50 a tank 52, which is connected at its two ends via Stirnringkonstruktionen 54 with the end frame 56. Upper side rails 60 and lower side rails 62 each extend between the upper and lower corner fittings 58. Typically, the tank container 50 is fixed to a host vehicle (e.g., semitrailer, container wagon, ship) via lower corner fittings 58 during transport. In order to reliably initiate the transport loads acting in the transport direction along the longitudinal axis 64, which are caused by accelerations, from the tank into the corner fittings 58, a very stable construction is required, in particular in the floor area. For this purpose, the side member is made from a stable and thus also comparatively heavy hot rolling profile (for example EPI 220). In addition, the connection to the end frame is reinforced by side end gate elements 66 and bottom end diagonal elements 68. These bottom and side diagonal elements 64 and 66 are formed of compact rectangular tube profiles and connect the longitudinal bars 62 with the transverse bars 72 and the corner posts 70 and. Such a known construction is shown in FIGS. 7 to 9 can be removed.

When maneuvering in rail transport 64 acceleration forces can occur in the direction of the longitudinal axis, which are caused by accelerations, which are four to six times the gravitational attraction (g). Therefore, the longitudinal beam 62 is formed very stable in conventional tank containers. Only in this way can he take away from the soil and side diagonals len 68, 66 absorb locally induced reaction forces without plastic deformation. Especially the frame components make this known construction comparatively difficult.

Based on this problem, therefore, the object of the present invention is to provide a front-mounted tank container with a lighter frame structure. A further object may be to optimize the transmission of force between the tank and the frame structure in such a way that the frame structure and in particular the introduction of force between corner supports, side diagonals and side rails or between cross beams, floor diagonals and side rails is designed such that these components in particular remain the same Stability can be carried out more easily.

This object is achieved by the tank container according to protection claim 1, which is characterized in that the bottom and / or side diagonals have an open cross-sectional profile. Such an open cross-sectional profile allows a design of the corresponding components (bottom and / or side diagonal), so that the stresses occurring under loads are distributed more evenly and local stress peaks at the joints of the components in question (side member, side diagonal, corner support, side member, floor diagonal , Cross member) are reduced. The open profile cross-section allows a "soft" connection, which allows a high intrinsic elasticity of the overall structure, without the required stability is reduced too much. So much lighter components can be used as side members and as corner supports, without the strength of the overall structure decreases too much.

In the development of the invention according to claim 2, an open trapezoidal cross-section is provided for the side diagonal, in which protrude from a base flange two side legs each at an angle between 145 and 165 °. This design allows an extended connecting portion of the side diagonals on the side rails and on the corner supports. The specially selected inclination ensures in the border areas (ie in the area of the side legs) a relatively soft and long

Coupling with the top of the side member, which gradually becomes stiffer towards the base flange. Unwanted point loads are avoided and buckling loads on the side member are reduced. The symmetrical structure according to protection claim 3 allows a low-profile production of the side diagonals by cutting according to profiled by the meter.

The development of the invention according to protection claim 4 allows a further improved power transmission between the side member and corner support. The length design of the side diagonal protection according to claim 5 optimizes the free buckling lengths on the side member and, together with the measure according to protection claim 6 to a further material-optimized and thus weight-optimized design.

The version according to protection claim 7 improves the power flow between side diagonal and side members. In this embodiment engages - with appropriate design of the longitudinal member as a hollow profile - the relatively stable base flange in a relatively soft connection region of the longitudinal member. As a result, an elastic component coupling with improved stress distribution is also realized here.

The developments of the invention, which are specified in the protection claims 8 to 13, relate to the design of the floor diagonal, which has a downwardly open hat profile cross-section according to claim 8. Such a hat profile has similar structural advantages as the open trapezoidal cross section of the side diagonal shown above. But here are also the free edges of the side legs stiffened by additional brim legs (protection claim 9). As a result, the profile can be made even flatter overall and still have a corresponding buckling or bulging stability. This flat design allows more ground clearance for connections or for insulation of the tank, especially in the connection area of the floor diagonals on the front side cross members. This effect is further enhanced by the inclination according to protection claim 10; At the same time, this design prevents moisture and dirt from accumulating on the main flange of the floor diagonal and causing corrosion problems. The angle arrangement to the longitudinal beam according to claim 11 also allows a structurally particularly favorable connection and improved power transmission between the cross member and longitudinal bearing.

The taper according to claim 12 permits a weight-optimized design of the floor diagonal for stress-optimized power transmission between the transverse spar and the longitudinal beam. The tread depth of the hat profile (height H) according to claim 13 allows the connection of a relatively flat (low) cross member to a comparatively high longitudinal beam (seen in the vertical direction) - again with a "soft" connection between floor diagonal and side member or cross member.

The overlapping connection areas according to claim 14 allow a particularly kink-optimized introduction of force of the floor and side diagonals in the lateral side members.

The design of the longitudinal member according to protection claim 15 allows the further optimizable introduction of force in the vertical direction (side diagonal) and horizontal direction (floor diagonal) in the side members.

The development of the invention according to the protection claims 16 to 18 allowed in conjunction with the special side and floor diagonals compared to conventional Stirnringkonstruktionen considerably lighter design. Here, the coupling tube segment according to protection claim 17 is particularly easy to install in the alignment of the front frame to tank, and the development according to protection claim 18 allows a particularly economical production of Sattelringsegmente. An embodiment of the present invention will be explained by way of example with reference to the drawings; show:

Fig. 1 is a side view of a tank container according to the invention;

Fig. 2 is a split view of the end frame sides (front and rear) of the tank container shown in Fig. 1;

Fig. 3 is a sectional view of a floor diagonal (view Y of Fig. 6);

4 is a sectional view of the side diagonal in the connection region to the corner support (section A-A in Fig. 1).

5 is a sectional view of the connection area between the tank end and the end frame

(Section B-B of Fig. 1);

Fig. 6 is a view of a floor diagonal

(Partial section C-D of Fig. 2);

Fig. 7 is a side view of a tank container according to the prior art;

FIG. 8 is a partial view of the end frame portion of the tank container shown in FIG. 7 (section A-A of FIG. 7); FIG. and

9 shows a view of a floor diagonal of the tank container shown in FIG. 7 (view Z from FIG. 8).

The basic structure of a tank container 1 according to the invention will now be explained in more detail with reference to FIGS. 1 and 2. The tankcontainer ner 1 comprises a tank 2 and a frame structure, the

Tank 2 receives over end frame 3 at its ends. For coupling, a respective end ring arrangement 4 is provided between the end frames 3 and the ends of the tank 2, which is explained in more detail below. Between the end frame 3 extends in the bottom region, a longitudinal frame structure 5, which serves in particular to transmit along the tank axis 6 acting forces.

The tank 2 is shown in FIGS. 1, 2 and 5 by the dot-dash-dotted line and is formed from a cylindrical body 8, the ends of which are closed with curved bottoms 10. The tank 2 also has fittings and connections, which are not shown here.

The left half of Fig. 1 shows a side view of the tank container 1 and the right half of a view in which the front frame members are cut away. The tank container shown is a so-called 20 'unit, which is particularly common in tank containers, but there are also 10', 30 'and 40' units usual.

The longitudinal frame structure 5 here comprises lower longitudinal members 12, the ends of which are each connected to the end frames 3. In addition, side diagonals 14 are provided, which extend obliquely upwards starting from the lower longitudinal members to the end frames 3. Floor diagonals 16 are provided in the floor area, which also extend obliquely from the lower side member 12 to the end frames 3 in a vertical plane near the bottom (see also FIG. 6).

FIG. 2 likewise shows the front frame of the tank container 1 from FIG. 1 in a divided view. The left half shows the front end and the right half the rear end of the tank container 1. The rear end is the end of tank containers , are provided on the front side (not shown here) bottom fittings. δ

The end frames 3 are each constructed of corner supports 18, lower corner fittings 20, upper corner fittings 22, an upper cross member 24, a lower cross member 26 and 26 ', upper Sirndiagonalen 28 and lower Sirndiagonalen 30.

The side diagonals 14 each connect a section L

(see Fig. 6) at the top of the lower side rail 12 with a portion M (see Fig. 1) on the tank 2 side facing the corner supports 18. At the front frame side

Terminal end of the side diagonal 14 is a reinforcing shoe

15 arranged.

The illustrated in Fig. 4 cross-section of the side diagonal 14 shows the connection of the reinforcing shoe 15 to the base flange 31 of the side diagonal 14, depart from the two side legs 32. In the illustrated embodiment, the side legs 32 are at an angle Y of 155 ° from the base flange 31 from. In other embodiments, this angle is between 145 and 165 °. In the illustrated embodiment, the depth t (see FIG. 6) of the side diagonal is approximately half the width B of the lower side member 12. However, it should be at least one third of this width.

The side diagonals 14 form with the lower side member an angle α (see Fig. 1) of about 13 °, in other embodiments, this angle varies between 10 and 16 °. In this case, the upper or outer edges of the side diagonal 14 form upper tendons, which divide the lower longitudinal members 12 into three sections T of approximately equal length. The upper or inner edges of the side diagonal 14 form lower chords, which approximately halve the outer portions T.

The construction described above and the arrangement of the side diagonal 14 allow a particularly favorable tension

Load transfer between the connection area M to the

Corner supports 18 and the connection area L at the bottom Side member 12. The open trapezoidal profile ensures favorable voltage transitions with high structural strength and low weight.

Structure and arrangement of the floor diagonal 16 are explained below with reference to FIGS. 3 and 6. The side diagonal shown in FIG. 6 extends from a connection region N on the inner side of the longitudinal member 12 facing the tank axis 6 to a connection region O on the rear side of the lower transverse member 26 'facing the tank 2. The longitudinal axis 33 of the floor diagonal 16 forms in the illustrated embodiment with the lower side member 12 a

Angle ß of about 19 °. In other embodiments, this angle varies between 15 and 24 °.

Fig. 3 shows that the floor diagonals 16 are provided as a hat profile with a main flange 33, two side legs 34 and 35 and two Krempenschenkel 36 and 37. The height h of the floor diagonal 16 amounts to at least one third of the height H (FIG. 1) of the longitudinal member 12. The main flange 33 tapers along the axis 33 'from the connection region O at the lower transverse member 26 or 26' to the connection region N on the longitudinal member 12. so that the two side legs enclose an angle of about 3 °. In other embodiments, this angle is between 0 and 5 °.

In addition, the main flange to the horizontal has an inclination of about 5 °. In other embodiments, this inclination is at least 2 °. This measure prevents water or dirt from accumulating on top of the floor diagonal 16.

The hat profile cross section of the floor diagonal 16 shown in Fig. 3 shows that the side legs 34 and 35 are almost vertical and the brim legs 36 and 37 are almost horizontal. In other embodiments, the side legs 34 and 35 are opened wider and close with the main flange 33 each an angle between 90 and 135 °. The Krempenschenkel 36 and 37 may also be inclined at an angle between 0 and 5 ° to the horizontal, so that form no deposits on the upper sides.

The above-described construction and the arrangement of the floor diagonal 16 allows a stress-optimized power transmission between the lower transverse beams 26 and 26 'and the longitudinal beams 12 in a flat construction. The rim arms 36 and 37 ensure a soft connection to the longitudinal beams 12 and the lower ones cross bars 26 and 26 ', while providing flat construction, a comparatively high buckling stability against compressive forces along the main axis 33 ^■.

In the illustrated embodiment, the longitudinal members 12 are formed of a square tube with a square cross-section. The terminal areas L and N of the side diagonals 14 and of the floor diagonals 16 have an overlap (hatched area in FIG. 6) of approximately 85% relative to the shorter terminal area (here N). In other embodiments, this overlap should be at least 50%, so that the attacking forces in different planes on the longitudinal members 12 attack voltage optimized. Thus, the resulting stresses can be matched to the existing cross-sectional profile and the available free buckling lengths.

FIG. 5 shows the construction of the end ring arrangement 4. Cylindrical end rings or end ring segments 38, which are connected to the end frames 3 via conical saddle ring segments 39 or saddle rings, are respectively arranged on the curved bottoms 10 of the tank 2. At the tank-facing narrow ends of the Sattelringsegmente 39 cylindrical coupling spigot segments 40 and coupling stub are formed, each with their inner cylindrical peripheral surfaces, the outer cylindrical peripheral surfaces of the end ring segments 38 and include during assembly for positioning on this can be moved. The coupling stub segment 40 can be crimped integrally, for example, to the conical saddle ring segment 39. It can also be used as a ring piece.

The wide end of the conical saddle ring segment 39 is connected via its end face to the corner supports 18, the upper end diagonals 28 and the lower end diagonals 30. End ring segments 38 and conical saddle ring segments 39 can either form a closed ring (see view from the front in FIG. 2) or can be interrupted (see rear view FIG. 2) and corresponding recesses for the arrangement of fittings or other attachments on Expose tank 2. The conical design allows a material-saving and thin-walled design of the end ring assembly 4, while ensuring a stable connection between the tank 2 and front frame 3 safe. In the illustrated embodiment, the opening angle of the conical saddle ring segment is about 45 °. In other embodiments, this opening angle can be between 30 and 60 °.

In the illustrated embodiment, the side diagonal 14 has an open trapezoidal profile and the bottom diagonal 16 a hat profile. In other embodiments, the floor diagonal 16 may have a trapezoidal profile or the side diagonal 14 a hat profile.

The base flange 31 of the trapezoidal profile and the main flange 33 of the hat profile are shown in Figs. 3 and 4 flat. In particular, these flanges 31 and 33 can have additional bends or profilings to improve their structural properties.

Other versions and variations will be apparent to those skilled in the art within the scope of the following claims.

Claims

13 claims

1. Tank container (1) with a tank (2) and a tank (2) via end frame (3) receiving framework in which the end frame (3) in the lower region via a longitudinal frame structure (5) are interconnected, wherein at least two lateral side members (12) are provided, which in their end regions in each case between a side member (12) and a corner support (18) extending side diagonal (14) and between longitudinal member (12) and a lower cross member (26, 26 ') extending floor diagonal ( 16), characterized in that the floor and / or side diagonal (16, 14) have an open cross-sectional profile.

2. Tank container (1) according to claim 1, wherein the side diagonal (14) has an open trapezoidal cross section, in which a base flange (31) with the two side legs (32) emanating therefrom each include an angle (Y) between 145 and 165 °.

3. Tank container (1) according to claims 1 or 2, wherein the base flange (31) and side legs (32) are each the same length.

4. tank container (1) according to one of claims 1 to 3, wherein the side diagonal (14) at an angle (α) between 10 and 16 ° to the longitudinal member (12).

5. tank container (1) according to one of claims 1 to 4, wherein the one between the corner support (18) and longitudinal beams (12) extending upper chord forming outer edge of the side diagonal (14) the longitudinal beam (12) about third.

6. tank container (1) according to claim 5, wherein the one between the corner support (18) and the longitudinal beam (12) extending lower chord forming inner edge of the side diagonal (14). 14 the distance on the longitudinal beam (12) between its terminal end and the intersection with the upper chord about halved.

7. tank container (1) according to one of the preceding claims in which the depth (t) of the side diagonal (14) in the horizontal direction transversely to the longitudinal axis (6) of the tank container (1) seen at least one third of the width (B) of the side member profile.

8. Tank container (1) according to one of the preceding claims, wherein the floor diagonal (16) is designed as a downwardly open hat profile.

9. tank container (1) according to claim 8, wherein the hat profile has a main flange (33), two side legs (34, 35) and two Krempenschenkel (36, 37)

10. Tank container according to claim 9, wherein the main flange (33) has an inclination of at least 3 ° to the horizontal along a major axis (33 ').

11. Tank container (1) according to any one of claims 8 to 10, wherein the main axis (33 ') of the floor diagonal (16) at an angle (ß) between 15 and 24 ° to the longitudinal beam (12).

12. Tank container (1) according to any one of claims 9 to 11, wherein the main flange (33) along the main axis (33 ') from the transverse spar (26, 26') is tapered starting, so that the side edges of the main flange (33). include an angle between 0 and 5 °.

13. Tank container (1) according to one of claims 8 to 12, wherein a height (h) of the floor diagonal (16) seen in the vertical direction transversely to the longitudinal axis of the tank container at least one third of a height (H) of the longitudinal member (12). 15

14. Tank container (1) according to one of the preceding claims, wherein the connection areas (L, N) of the side diagonals (14) and the floor diagonals (16) on the side rail (12) have an overlap of at least 50%.

15. Tank container (1) according to one of the preceding claims, wherein the longitudinal carrier (12) is formed from a hollow profile carrier with a square cross section, whose side surfaces each extend parallel to a vertical or horizontal plane.

16. Tank container (1) according to one of the preceding claims, wherein the connection between the tank (2) and end frame (3) via a tank-mounted on the cylindrical Stirnringsegment (38) and on the front frame (3) attached conical saddle ring segment (39).

17. Tank container (1) according to claim 16, wherein at the tank facing the narrow end of the saddle ring segment (39) has a cylindrical Koppelstutzensegment (40) is formed, which rests with its inner cylindrical peripheral surface on the outer cylindrical peripheral surface of the Stirnringsegments (38).

18. Tank container (1) according to claim 17, wherein the coupling stub segment (40) is formed integrally on the saddle ring segment (39).