Rack system for arrangement in a holding frame of a rail vehicle

Abstract

The invention relates to a rack system (1) for arrangement in a holding frame (5) of a rail vehicle (7), comprising a rack (2) and a number of locking pairs (3) having a first locking plate (3.1) and a second locking plate (3.2) per locking pair (3), wherein - one of the locking plates (3.1, 3.2) of a locking pair (3) has a plurality of regularly arranged conical protuberances (A), which have an identical shape and are located at the same distance from one another, and - the other of the locking plates (3.2, 3.1) of the locking pair (3) has a plurality of regularly arranged conical indentations (E) or holes, which have an identical shape and are located at the same distance from one another and are shaped and arranged such that the two locking plates (3.1, 3.2) can interlockingly engage in one another in a plurality of lateral positions, the first locking plate (3.1) being attached or attachable to a rear side (R) of the rack (2) and the second locking plate (3.2) being attachable to the holding frame (5) for this rack (2), in a manner as intended such that the two locking plates (3.1, 3.2) are oriented parallel to one another and can engage in one another. The invention also comprises an engine room framework, a method and a rail vehicle.

Description

[0001] Description

[0002] Rack system for arrangement in a support frame of a rail vehicle

[0003] The invention relates to a frame system for arrangement in a holding frame of a rail vehicle, a machine room frame for a rail vehicle, a method for producing a machine room frame and a rail vehicle.

[0004] Many electric locomotives contain cabinets containing electronic devices and circuits. These cabinets are usually arranged in a frame or form a frame enclosed by walls, also known as a "rack." Such a rack contains components necessary for the operation of the locomotive. Locomotives are typically equipped with several support frames, each of which can accommodate a rack.

[0005] Since the space available in a locomotive is very limited, access to the racks is usually only possible from the front, via an engine room aisle. This also applies to the installation of a rack. It must be pushed into the support frame from the front and secured there, with no access to the rear of the rack.

[0006] Currently, such racks in electric locomotives are mounted on C-rails using vertically and horizontally arranged hammer-head screws. This is done by attaching a hammer-head screw to the bottom right and left of each rack, running from the rear to the front, with the head at the rear. When attaching the rack, the head of the hammer-head screw is pushed into the C-rail, the screw is turned 90°, and the head is thereby clamped to the C-rail. The screw can then be secured to the front of the rack with a nut.

[0007] A serious disadvantage of this fastening is that comparatively long hammer head screws have to be used, which cannot be tightened with the torque required for the calculation because the buckling stiffness of the base frame construction of the racks does not allow this.

[0008] It is an object of the present invention to provide a frame system for arrangement in a support frame of a rail vehicle, a machine room frame for a rail vehicle, a method for producing a machine room frame and a rail vehicle with which the disadvantages described above are avoided.

[0009] This object is achieved by a frame system according to patent claim 1, a machine room scaffold according to patent claim 7, a method according to patent claim 10 and a rail vehicle according to patent claim 11.

[0010] A frame system according to the invention is intended for arrangement in a support frame of a rail vehicle. It comprises a frame (particularly provided with a housing) and a number of pairs of bars with a first locking plate and a second locking plate per pair of bars, wherein

[0011] - one of the locking plates of a pair of locking plates has a plurality of regularly arranged conical protrusions which have an identical shape and an identical distance from one another, and

[0012] - the other of the locking plates of the locking pair has a plurality of regularly arranged conical indentations or holes which have an identical shape and an identical distance from one another and are shaped and arranged in such a way that the two locking plates can engage one another in a form-fitting manner in a plurality of lateral positions.

[0013] The first locking plate is attached or attachable to a rear side of the frame and the second locking plate is attachable to the support frame for this frame, in such a way that both locking plates are aligned parallel to each other and can engage with each other.

[0014] As mentioned above, racks are generally known for arrangement in the support frame of a rail vehicle and are usually fixed to the rear with hammer-head bolts. Such a rack can contain a cabinet or be enclosed by a housing and contains components for operating a locomotive inside (or in the cabinet). The rack usually has a base frame and walls. These walls can be in the form of the cabinet in this base frame, but the base frame can also be provided with walls. The rack can also consist only of (self-supporting) walls that form the base frame.

[0015] Instead of hammer-head bolts, the frame system according to the invention comprises a number of pairs of bars (one or more). Each pair of bars comprises a first bar plate and a second bar plate that can interlock. The term "interlock" here implies that the two bar plates can be placed on top of each other so that they lie parallel to each other and form a positive connection, so that they can no longer be displaced relative to each other in at least one direction lateral to their surface normal.

[0016] As a rule, the intended direction of movement of the rail vehicle is referred to as the X-axis, the other horizontal direction orthogonal to the X-axis is referred to as the Y-axis and the vertical direction is referred to as the Z-axis. In such a coordinate system, locking plates that are aligned in the X-Z plane and interlock should at least no longer be able to move relative to one another in the X-direction. Basically, when racks are installed in a rail vehicle, they are fixed at the front with screws and can therefore no longer slip in the Y-direction. Without fixing at the rear, they could slip in the X-direction during braking or tip forward in a curve. It is therefore preferable for a pair of locking plates to be arranged in such a way that the interlocking locking plates can neither be moved relative to one another in the X-direction nor in the Z-direction.

[0017] One of the locking plates of a locking pair has a multitude of regularly arranged conical protrusions. These protrusions have an identical shape and are spaced identically apart. They can be a matrix of cones or pyramidal structures, but also teeth on a rack or tooth plate.

[0018] The other locking plate in the locking pair essentially has an inverse structure. It comprises a multitude of regularly arranged conical indentations or holes, which also have an identical shape and an identical spacing from one another. These indentations or holes are shaped and arranged in such a way that the two locking plates can interlock in a form-fitting manner in several lateral positions. This means that the two locking plates can interlock in a basic position so that the indentations of one locking plate lie in the indentations / holes of the other locking plate, and the two locking plates can also interlock in other positions laterally shifted to each other (i.e., in a direction orthogonal to their surface normal).Basically, the locking plates should be shaped in such a way that if they are moved laterally by an integer distance between the protuberances, they can engage with each other again, as is the case with toothed racks, for example. A single conical body that engages with a single hole would also be conceivable, but the locking plates allow a much larger fitting tolerance while maintaining optimal hold. After all, the back of a rack is neither accessible nor visible when it is being pushed onto the holding frame, so you basically just have to get the locking plates into one of the many possible "engagement positions". It should be noted that the rack frame system is primarily a system with which a machine room scaffold (holding frame with rack frames arranged on it) can be manufactured using a conventional holding frame.With the frame system according to the invention, no special support frame is required; rather, a conventional support frame can be used. This can be retrofitted with the second locking plates, so that a frame equipped with the locking plate counterpart can be arranged in the support frame. This allows for easy retrofitting of locomotives.

[0019] In the rack frame system according to the invention, the first locking plate is attached or attachable to a rear side of the rack frame. The second locking plate is attachable to the holding frame for this rack frame. As previously stated, the invention can be presented as a retrofit kit. The locking plates can be included loosely, or the first locking plate can already be attached to the rack frame. The holding frame is generally not part of the kit, as it is already located in the rail vehicle. However, the holding frame can be retrofitted with the second locking plate. If no rack is yet arranged in a holding frame, access is available to its rear part, and the second locking plate can be attached there. However, the second locking plate must be shaped so that it can be attached to the holding frame. For this purpose, it can have holes where it can be screwed to the holding frame.However, it can also have (short) hammer head screws that can engage and hold in place in a C-rail in the rear part of the support frame.

[0020] It is important that, when properly installed, the two locking plates of a locking pair are aligned parallel to each other and can interlock. This means that their surface normals are parallel to each other and their position is such that they overlap when the rack is properly positioned in the support frame.

[0021] A machine room scaffold according to the invention (i.e., a holding frame with rack frames arranged thereon) for a rail vehicle comprises a holding frame and a rack frame system according to the invention. The rack frame system comprises a number of pairs of bars. The holding frame is designed to hold the rack frame of the rack frame system at least on its underside. The rear of the rack frame has a number of first locking plates, and the holding frame has a number of second locking plates. The locking plates are arranged such that, when the rack frame is arranged as intended in the holding frame, the first locking plates interlock with the second locking plates as a pair of bars, parallel to one another.

[0022] Such a machine room scaffold has already been described above and essentially represents a support frame on which a rack frame is arranged by means of a number (preferably a plurality) of pairs of crossbars. The rack frame is preferably screwed to the support frame at its front end (so that it can no longer slip in the Y direction) and is held at its rear by the pairs of crossbars through interlocking locking plates, which prevent the rear of the rack frame from slipping sideways and upwards (in the X and Z directions). One locking plate of a pair of crossbars is attached to the support frame, and the other locking plate of the pair of crossbars is attached to the rear of the rack frame.

[0023] A method according to the invention is used to manufacture a machine room scaffold. It comprises the following steps:

[0024] - Providing a rack system according to the invention,

[0025] - Providing a support frame designed to hold the frame of the frame system at least at its underside,

[0026] - If not already mounted: Mount the number of first locking plates of the number of locking pairs to the back of the frame,

[0027] - Mounting the number of second locking plates of the number of locking pairs on the support frame in such a way that, when the frame is arranged as intended in the support frame, the first locking plates engage with the second locking plates as a locking pair parallel to each other,

[0028] - Insert the frame into the support frame until the first locking plates engage with the second locking plates to form a pair of locking plates,

[0029] - Fix the frame to the front of the support frame, preferably using screws.

[0030] This process has essentially been described above. In addition to the frame, the rack system also comprises a number of pairs of bars. The holding frame is designed as standard to hold the rack system in a form-fitting manner so that it can stand on it. It should be noted that the rack frame is usually quite heavy and has a comparatively high center of gravity, so it must be securely mounted on the rack frame to prevent it from tipping or slipping while the rail vehicle is in motion. First, the first bar plates of pairs of bars (at least one, but preferably several) are mounted to the rear of the rack frame. This can already have been done during manufacture of the rack frame system.

[0031] The number of second locking plates of the respective locking pairs (at least one, preferably several) are mounted to the support frame, e.g., glued, screwed, riveted, or welded. They are positioned such that, when the frame is properly arranged in the support frame, the first locking plates interlock with the second locking plates as a locking pair parallel to each other (as described above).

[0032] Once all the desired locking plates are installed, the frame can be pushed into the support frame until the first locking plates interlock with the second locking plates to form a locking pair. Since the locking plates are located on the back of the frame and interlock, it can no longer tip or slip sideways.

[0033] The frame can now be attached to the support frame at the front. This is preferably done with screws, but can also be done with bolts or rivets. The frame can also be attached by welding or gluing, although a detachable connection is preferred.

[0034] A rail vehicle according to the invention comprises a machine room frame according to the invention. This frame is preferably manufactured using a method according to the invention.

[0035] Further, particularly advantageous embodiments and developments of the invention emerge from the dependent claims and the following description, wherein the claims of one claim category can also be developed analogously to the claims and description parts to form another claim category and, in particular, individual features of different embodiments or variants can be combined to form new embodiments or variants.

[0036] Preferably, each of the locking plates of a locking pair has a plurality of regularly arranged protrusions and indentations so that both locking plates can interlock in a form-fitting manner in several positions. While one of the locking plates could certainly be a perforated plate and the other merely have protrusions, it is easier for production if both locking plates look basically the same. The spaces between protrusions can certainly be regarded as indentations. Likewise, spaces between indentations can certainly be regarded as protrusions. Thus, if the indentations are formed as negative molds of the protrusions, or vice versa, the result is locking plates that basically look identical and can simply interlock when shifted half a distance from each other.

[0037] The locking plates preferably have a toothed structure consisting of an alternating pattern of teeth and tooth-shaped indentations. While racks allow slipping in a direction lateral to their surface normal, this can be effectively prevented by a special orientation of the locking plates slightly inclined to the horizontal or by an assembly of two locking pairs rotated relative to each other around the surface normal (one prevents slipping in the X direction, the other in the Z direction).

[0038] A preferred frame system is characterized by the fact that both locking plates are shaped so that, once they are interlocked, they can slide laterally relative to each other (i.e., in a direction orthogonal to their surface normal), while sliding in a lateral direction orthogonal to this is prevented by the form fit. The locking plates are (as mentioned) preferably toothed plates or racks.

[0039] Preferably, one locking plate of the locking pair is attached or attachable at an angle to the vertical on the rear of the frame, so that a lower edge of the locking plate is farther from the rear than an upper edge of the locking plate. This can be achieved, for example, by mounting the locking plate on a wedge or by attaching the locking plate to one half of a plate, the other half of which is bent at an angle. The structured side of the locking plate (its surface normal) points diagonally upward.

[0040] The other locking plate can then be attached to the support frame for this frame in such a way that both locking plates are aligned parallel to each other. Therefore, if this second locking plate were attached to the support frame, it would also be rotated around the horizontal. Since the locking plates must interlock parallel to each other, one upper edge of the locking plate is farther from the attachment point on the support frame than its lower edge. The textured side of this locking plate (its surface normal) therefore points diagonally downward.

[0041] Racks or toothed plates are ideal for this arrangement; they are arranged so that the locking plates, which are inclined to the XZ plane, can slide into each other in the Y direction. The teeth are therefore parallel to the YZ plane. This has the advantage that a rack can be easily pushed onto the holding frame as far as the end. The teeth slide into each other until the inclined locking plates are in close contact and interlock. The teeth then prevent slipping in the X direction, and the inclined arrangement of the locking plates prevents slipping in the Z direction. The second locking plate on the holding frame has its textured side facing down and must therefore lie above the first locking plate on the rack frame when interlocking. The second locking plate therefore blocks the lifting of the first locking plate, which would correspond to a displacement in the Z direction or a tilting of the rack frame forward.

[0042] The maximum distance between two protrusions on a locking plate is preferably less than 2 cm, preferably less than 1 cm. The finer the structure of a locking plate, the easier it is to fit it onto the support frame later. However, sufficient support must also be ensured. Therefore, it is preferred that the distance be greater than 1 mm, preferably greater than 5 mm.

[0043] A preferred frame system comprises two or more pairs of bars (e.g., left and right at the rear). Preferably, at least two first locking plates are attached or can be attached to the frame with different orientations, in particular rotated 90° relative to each other about their surface normal.

[0044] A preferred machine room scaffold is characterized by the number of first locking plates mounted on the rear side of the frame in the lower quarter of the rear side, preferably in the lower eighth of the rear side. The support frames are often quite flat. The pairs of locking plates must be arranged on the support frame and the frame and interlock with each other.

[0045] Preferably, the number of first locking plates on the rear side of the frame is inclined about the horizontal axis (i.e., oblique to the vertical, in particular oblique to the XZ plane).

[0046] The number of second locking plates on the support frame is also inclined about the horizontal axis, so that when the frame is arranged as intended in the support frame, the first locking plates engage with the second locking plates as a pair of locks parallel to each other.

[0047] The invention is explained in more detail below with reference to the accompanying figures using exemplary embodiments. In the various figures, identical components are provided with identical reference numerals. The figures are generally not to scale. They show:

[0048] Figure 1 shows a frame system 1 in perspective from the front,

[0049] Figure 2 shows a frame system 1 in perspective from behind,

[0050] Figure 3 shows a preferred arrangement of locking plates in the form of tooth plates,

[0051] Figure 4 shows a perspective view of an engine room frame in a rail vehicle,

[0052] Figure 5 is a sketch of the process flow for assembling the engine room scaffold.

[0053] Figure 1 shows a frame system 1 from an oblique front view. The frame 2 here has a housing 4 in which electronic components for an electric locomotive can be installed. A pair of latches 3 can be seen on the rear side R.

[0054] Figure 2 shows the frame system 1 from Figure 1 from an angled rear view. Here, it can be seen that two pairs of bars 3, each consisting of a first bar plate 3.1 and a second bar plate 3.2, are arranged in the lower area of ​​the rear side R. The first bar plates 3.1 are in the form of toothed plates arranged diagonally on wedges and are already attached to the rear side R, so that their structured sides face upwards. The second bar plates 3.2 are also arranged diagonally on wedges, so that their structured sides face downwards. In the position shown here, the second bar plates 3.2 can be fixed to a holding frame.

[0055] Figure 3 shows a preferred arrangement of locking plates 3.1, 3.2 in the form of toothed plates. At the very top of the perspectively shown pair of locks 3, the teeth can be clearly seen as protrusions A and the spaces between them as indentations E. If these diagonally arranged locking plates 3.1, 3.2 (see also Figure 2) are pushed into one another, as sketched in the illustrations below, they interlock at the end (shown at the very bottom). This blocks displacement in the Z direction (upwards) by the second locking plate 3.2, which should be firmly attached to the holding frame. Displacement in the X direction (out of the plane of the page) is prevented by the toothing. Figure 4 shows a machine room scaffold 6 in a rail vehicle 7 (the floor of which is shown here as a representative example). The frame 2 is arranged on the holding frame 5 and fixed at the bottom front with two screws 8.At the rear (not visible), the pairs of bars 3 on the back R of the frame 2 and the holding frame 5 engage with each other, as can be seen in Figure 3 below.

[0056] A coordinate system is shown next to the engine room frame 6. X points in the direction of travel of the rail vehicle 7 (and is parallel to its longitudinal axis), Y points horizontally to the side, perpendicular to the longitudinal axis, and Z points vertically, parallel to the vertical.

[0057] Figure 5 shows a sketch of the process flow for assembling the engine room scaffold.

[0058] First (above) a frame 2 and a conventional holding frame 5 are provided.

[0059] Then (below) first locking plates 3.1 are mounted on the back R of the frame 2 and second locking plates 3.2 on the holding frame 5, so that when the frame 2 is arranged as intended in the holding frame 5, the first locking plates 3.1 can engage with the second locking plates 3.2 as a locking pair 3 parallel to each other (see Figure 3).

[0060] Now the frame 2 is pushed into the holding frame 5 until the first locking plates 3.1 engage with the second locking plates 3.2 as locking pair 3 (see sketch).

[0061] Finally (below), the front side of the frame 2 is fixed to the support frame 5 using screws 8.

[0062] Finally, it should be noted once again that the invention described in detail above merely represents exemplary embodiments which can be modified in a variety of ways by a person skilled in the art without departing from the scope of the invention. Furthermore, the use of the indefinite articles “a” or “an” does not exclude the possibility that the features in question may be present in multiple instances. Likewise, terms such as “unit” do not exclude the possibility that the components in question consist of several interacting sub-components, which may also be spatially distributed. The term “a number” should be read as “at least one”. Regardless of the grammatical gender of a particular term, this includes persons with male, female or other gender identities.

[0063] List of reference symbols

[0064] 1 frame system

[0065] 2 frame 3 pair of bars

[0066] 3.1 first locking plate

[0067] 3.2 second locking plate

[0068] 4 housings

[0069] 5 Holding frame 6 Machine room scaffolding

[0070] 7 Rail vehicle

[0071] 8 screw

[0072] A protrusion

[0073] E Recess R Back

[0074] X, Y, Z coordinate axes

Claims

Patent claims 1. A frame system (1) for arrangement in a holding frame (5) of a rail vehicle (7) comprising a frame (2) and a number of pairs of bars (3) with a first locking plate (3.1) and a second locking plate (3.2) per pair of bars (3), wherein - one of the locking plates (3.1, 3.2) of a locking pair (3) has a plurality of regularly arranged conical protuberances (A) which have an identical shape and an identical distance from one another, and - the other of the locking plates (3.2, 3.1) of the locking pair (3) has a plurality of regularly arranged conical indentations (E) or holes which have an identical shape and an identical distance from one another and are shaped and arranged such that the two locking plates (3.1, 3.2) can engage one another in a form-fitting manner in a plurality of lateral positions, wherein the first locking plate (3.1) is attached or attachable to a rear side (R) of the rack frame (2) and the second locking plate (3.2) is attachable to the holding frame (5) for this rack frame (2), in a manner intended such that both locking plates (3.1, 3.2) are aligned parallel to one another and can engage one another.

2. Rack system (1) according to claim 1, wherein each of the locking plates (3.1, 3.2) of a pair of locking plates (3) has a plurality of regularly arranged protrusions (A) and indentations (E), so that both locking plates (3.1, 3.2) can engage with each other in a form-fitting manner in several positions, preferably wherein the locking plates (3.1, 3.2) have a tooth structure consisting of an alternating pattern of teeth and tooth-shaped indentations (E).

3. Rack system (1) according to claim 1, wherein both locking plates (3.1, 3.2) are shaped such that they can slide laterally relative to one another after they have engaged with one another and sliding in a lateral direction orthogonal thereto is hindered by the positive connection, preferably wherein the locking plates (3.1, 3.2) are toothed plates or toothed racks.

4. Rack system (1) according to one of the preceding claims, wherein the first locking plate (3.1) of the locking pair (3) is attached or attachable obliquely to the vertical on the rear side (R) of the rack frame (2) so that a lower edge of the locking plate (3.1) is further away from the rear side (R) than an upper edge of the locking plate (3.1), and wherein the other locking plate (3.2) is attached to the holding frame (5) for this The frame (2) can be attached in such a way that both locking plates (3.1, 3.2) are aligned parallel to each other.

5. Rack system (1) according to one of the preceding claims, wherein on a locking plate (3.1, 3.2) the maximum distance between two protrusions (A) is less than 2 cm, preferably less than 1 cm.

6. Rack system (1) according to one of the preceding claims, comprising two or more pairs of bars (3), preferably wherein at least two first bar plates (3.1) are attached or attachable to the rack frame (2) with different orientations.

7. Machine room scaffolding (6) for a rail vehicle (7) comprising a holding frame (5) and a rack system (1) according to one of the preceding claims, comprising a number of pairs of bars (3), wherein the holding frame (5) is designed to hold the rack (2) of the rack system (1) at least on its underside, wherein the rear side of the rack (2) has a number of first locking plates (3.1) and the holding frame (5) has a number of second locking plates (3.2) which are arranged such that when the rack (2) is arranged as intended in the holding frame (5), the first locking plates (3.1) engage with the second locking plates (3.2) as a pair of bars (3) parallel to one another.

8. Machine room scaffolding (6) according to claim 7, wherein the number of first locking plates (3.1) are attached to the rear side (R) of the frame (2) in the lower quarter of the rear side (R), preferably in the lower eighth of the rear side (R).

9. Machine room scaffolding (6) according to claim 7 or 8, wherein the number of first locking plates (3.1) on the rear side (R) of the frame (2) is inclined about the horizontal axis and the number of second locking plates (3.2) on the holding frame (5) is also inclined about the horizontal axis, so that when the frame (2) is arranged as intended in the holding frame (5), the first locking plates (3.1) engage with the second locking plates (3.2) as a locking pair (3) parallel to one another.

10. A method for producing a machine room scaffold (6) according to any one of claims 7 to 9, comprising the steps: - Providing a frame system (1) according to one of claims 1 to 6, - Providing a holding frame (5) designed to hold the frame of the frame system (1) at least on its underside, - If not already mounted: Mount the number of first locking plates (3.1) of the number of locking pairs (3) to the back of the frame (2), - Mount the number of second locking plates (3.2) of the number of locking pairs (3) to the holding frame (5) in such a way that when the frame (2) is arranged as intended in the holding frame (5), the first locking plates (3.1) engage with the second locking plates (3.2) as a locking pair (3) parallel to each other, - Insert the frame (2) into the support frame (5) until the first locking plates (3.1) engage with the second locking plates (3.1) as a locking pair (3), - Fix the frame (2) at the front to the support frame (5), preferably using screws (8).

11. Rail vehicle (7) comprising a machine room frame (6) according to one of claims 7 to 9, preferably manufactured by a method according to claim 10.

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