EP3863905B1 - Device for receiving and for transporting at least one wheel set of a rail vehicle - Google Patents

Description

The invention relates to a device for receiving and transporting at least one wheel set of a rail vehicle, comprising: a first side part and a second side part, which are spaced apart from one another in the transverse direction, both side parts being connected to one another, both side parts each having a superstructure and a substructure , wherein both bases have at least one running wheel with which the device can be moved in the longitudinal direction, and wherein both superstructures have a receptacle in which a wheel of a wheel set can be accommodated.

Such devices are required, for example, to tow rail vehicles in which chassis parts have failed or are defective.

Devices for receiving and transporting wheelsets of a rail vehicle are already known from the prior art. the AT 516 785 A1 describes, for example, a device for receiving and transporting wheelsets. With this device, the wheels of the wheel set are accommodated in a receptacle for each side part. In order to be able to negotiate small curve radii, one wheel of the wheel set is mounted on two rollers in one mount, which allows the wheel to rotate about its own axis, and the other wheel is mounted in the other mount with horizontal play. However, side parts with superstructures and substructures that can be rotated relative to one another are not provided in this device.

From the DE 26240 C a device for receiving and transporting wheelsets is known, in which a superstructure is rotatably mounted relative to a substructure. On the superstructure, two recordings are provided, a wheelset of a Rail vehicle can accommodate. However, the device does not have a separate superstructure and substructure on each side, which are rotatably mounted relative to one another.

Against this background, the invention is based on the object of designing and developing the aforementioned devices in such a way that cornering, in particular with small curve radii, is optimized. In particular, the invention is based on the object of creating a compact device with which even small curve radii can be negotiated without the device derailing.

This object is achieved in a device according to the preamble of patent claim 1 in that the superstructure of a side part is rotatably mounted relative to the substructure of the same side part.

A device according to the invention serves to receive and transport a wheel set of a rail vehicle. The device is initially characterized by a first and a second side part. The two side parts of the device are spaced from each other in the transverse direction. The two side parts are preferably aligned approximately parallel to one another, in particular symmetrically to a plane spanned by the longitudinal direction and the vertical direction. The distance between the two side parts is preferably selected in such a way that the device can be moved on rails, in particular on rails with one of the track gauges commonly used worldwide for rail vehicles (eg standard gauge). Alternatively or additionally, the device can also be set up in such a way that it is also possible to move the device without rails. This is advantageous, for example, when moving the device on a hall floor in a workshop. The two side parts are also connected to each other. The connection can be made via rods, struts or other components and structures. The side parts themselves each have a base and a superstructure. The two substructures have at least one running wheel with which the device can be moved in the longitudinal direction (ie in the direction of travel). For example, the impellers are this in the Substructures rotatably mounted. The combination of substructure and wheels is also referred to as a "carriage". In addition, both superstructures have a receptacle in which a wheel of a wheelset can be accommodated. For this purpose, the receptacle can partially surround the wheel to be accommodated, wherein it preferably surrounds less than half the circumference of the wheel. This simplifies the recording of the wheelset on the device. The wheel can rest on the entire surface of the mount or only at individual points. The full-surface contact is achieved in that the shape of the receptacle corresponds to the outer geometry of the wheel to be picked up, while resting on only individual points is achieved by a shape of the receptacle that deviates from the outer geometry of the wheel to be picked up. For example, the receptacle can have different radii both in the longitudinal and in the transverse direction. This has the advantage that wheels with different external geometries can be safely accommodated on the same mount.

One embodiment of the device is characterized in that the superstructure of a side part is rotatably mounted about an axis of rotation of this side part running in the vertical direction. In this case, the axis of rotation can preferably be provided approximately in the middle of the respective side part. Alternatively, however, it can also be provided at a different point on the side part. The ability to rotate around the vertical axis means that the substructures can assume different steering angles relative to the superstructures, which means that tight curve radii can be negotiated particularly well.

In a further embodiment of the device, the two side parts are connected to one another via their superstructures. The two superstructures can preferably be connected via at least one rod, in particular via two rods. It is advantageous if the rods are attached to the superstructure evenly distributed along the longitudinal direction. As a result, an even distribution of force and tension is possible, especially when cornering. However, the connection can also be made using other components such as flat Beams, plates or bar constructions can be manufactured. By connecting the two superstructures, the device can be adapted to the wheel sets accommodated by the superstructure, for example setting a defined distance in the transverse direction.

According to a further embodiment of the device, the connection between the superstructure of the first side part and the superstructure of the second side part is rigid. As a result, the distance between superstructures and thus the recordings is kept constant. This prevents the wheelset to be picked up from falling off the device when cornering due to the distance between the pick-ups becoming smaller or larger. Another advantage of a rigid connection is the increased rigidity, which means that even particularly heavy wheel sets can be reliably picked up and transported.

A further embodiment of the device provides that the two side parts are connected to one another via their substructures. In this case, the connection can be made at at least one point on the substructure, preferably at two points on the substructure. It is advantageous if the connections are attached to the substructures in a uniformly distributed manner along the longitudinal direction. This enables an even distribution of force and stress to the substructures, especially when cornering. A synchronous rotation of both substructures relative to the superstructure can be achieved by connecting the substructures. In addition, the positions of both substructures can be adjusted relative to one another (e.g. approximately parallel to one another).

A further embodiment of the device is characterized in that the connection between the substructure of the first side part and the substructure of the second side part is movable, in particular pivotable. The movable, in particular pivotable, design of the connection enables or significantly simplifies the steerability of the device, which contributes to better cornering of the device even with smaller curve radii. the movable, in particular a pivotable connection can preferably be attached along the longitudinal direction at the front and/or rear end of the substructure.

According to a further embodiment of the device, the connection between the substructure of the first side part and the substructure of the second side part is designed as a tie rod. Two tie rods can also be provided. The use of at least one tie rod significantly simplifies the steerability of the device, since the steering movement on one side of the device is transmitted particularly precisely to the other side of the device. In addition, tie rods enable a particularly precise adjustability of the positions of the two substructures relative to one another.

According to a further embodiment of the device, the distance between the two side parts can be adjusted in the transverse direction. It is possible to implement the adjustment of the distance by replacing and/or removing at least a portion of the connection between the side parts. This is advantageously implemented by means of at least one quick-action clamping device. Likewise, the adjustment can be realized, for example, by at least one telescopic connection between the two side parts, in particular between the two superstructures. The purpose of adjusting the distance is to be able to use the device on different track gauges of rail vehicles that are common worldwide, for example standard gauge, meter gauge and the like.

Another embodiment of the device is characterized by a connection between the superstructure and the substructure of the same side part, which is formed by a projection and an undercut. This design achieves a form-fitting connection between the superstructure and substructure that is particularly reliable and robust. The connection is preferably designed in such a way that the projections engage in the undercuts only at steering angles that are usual in operation (eg 10° per side) and at larger steering angles (unusual in operation). there is no longer any interlocking, so that the superstructure and substructure can be separated.

According to a further embodiment of the device, provision is made for a sliding element to be fitted between the superstructure and the substructure of the same side part. The sliding element reduces the friction between the superstructure and the substructure, which enables easier steering. The sliding element can be mounted on the superstructure and/or on the substructure. The sliding element is preferably made of metal or plastic.

According to a further embodiment of the device, it is provided that the receptacle has at least one recess for securing a wheel flange of a wheel of a wheelset. Both superstructures preferably have a receptacle with such a recess. By providing a recess, a defined position of the wheels of the wheelset secured against lateral slipping is achieved.

In a further embodiment of the device it is provided that the receptacle and/or the recess is conically shaped at least in sections. In this way, a particularly good adaptation to the running surfaces of rail vehicle wheels—typically also conical in shape—is achieved. The conicity of the receptacle/recess of the first side part is preferably opposite to the conicity of the receptacle/recess of the second side part, so that the wheel set automatically slides into a defined position in the transverse direction when placed on the device by the weight. As an alternative to a conical design, another design of the receptacle/recess can also be provided, for example a cylindrical design.

According to a further embodiment of the device, it is provided that at least one running wheel has a wheel flange and/or is conically shaped. All running wheels preferably have a wheel flange and/or are conically shaped. By a Such a design of the running wheels optimizes the device for operation on rails by transferring the essential properties of typical wheels of wheel sets (conical shape, wheel flange) to the running wheels of the device.

According to a further embodiment of the device, it is provided that at least one running wheel of one side part has a steering angle that is approximately the same as a running wheel of the other side part. Provision is preferably made for all the running wheels of one side part to have approximately the same steering angle as the running wheels of the other side part. In other words, a synchronous steering movement of the running wheels of the left-hand side part and the running wheels of the right-hand side part is to be achieved. This can be achieved structurally, for example, by a tie rod. One advantage of this solution is that even tight curve radii can be negotiated largely without jerking.

Finally, according to a further embodiment of the device, it is provided that the device is designed so that it can be dismantled and in particular has quick-release fasteners for tool-free assembly and/or disassembly. Improved occupational safety is achieved by designing the device so that it can be dismantled, since the individual parts of the device can be carried by people without endangering their safety or health. This can be achieved particularly well with quick-release fasteners, which are designed, for example, as bolts with a safety device and can be attached and detached by hand without additional tools. It can be provided, for example, that the two side parts can be separated from the parts connecting them (e.g. coupling rods, tie rods, etc.), preferably by means of quick-release fasteners. Alternatively or additionally, it can be provided that the running wheels can be separated from the side parts (in particular from their substructures), preferably by means of quick-release fasteners.

Fig. 1:

eine erfindungsgemäße Vorrichtung in einer perspektivischen Ansicht,

Fig. 2:

einen Ausschnitt der Vorrichtung aus Fig. 1 in Draufsicht,

Fig. 3:

die Vorrichtung aus Fig. 1 in einer geschnittenen Seitenansicht entlang der in Fig. 2 eingezeichneten Schnittebene III-III,

Fig. 4:

die Vorrichtung aus Fig. 1 in Seitenansicht,

Fig. 5:

die Vorrichtung aus Fig. 1 in einer geschnittenen Seitenansicht entlang der in Fig. 4 eingezeichneten Schnittebene V-V, und

Fig. 6:

die Vorrichtung aus Fig. 1 in Vorderansicht.

The invention is explained in more detail below with reference to a drawing that merely shows a preferred exemplary embodiment. Show in the drawing:

Figure 1:

a device according to the invention in a perspective view,

Figure 2:

a section of the device 1 in top view,

Figure 3:

the device off 1 in a sectional side view along the in 2 marked cutting plane III-III,

Figure 4:

the device off 1 in side view,

Figure 5:

the device off 1 in a sectional side view along the in 4 marked cutting plane VV, and

Figure 6:

the device off 1 in front view.

In 1 a device 1 according to the invention for receiving and transporting at least one wheel set of a rail vehicle is shown. The device 1 comprises a first side part 2 and a second side part 2 ′, which are spaced apart from one another in the transverse direction Y—that is, transverse to the direction of travel F. The two side parts 2, 2' are preferably aligned parallel to one another. The two side parts 2, 2' in turn each have a base 3, 3' and a superstructure 4, 4'. The substructure 3, 3' and the superstructure 4, 4' of the same side part 2, 2' are each rotatably mounted relative to one another. The rotation takes place about an axis of rotation D, D′ of the corresponding side part 2, 2′ running in the vertical direction Z (ie vertically). The rotatable mounting of the substructure 3, 3' and superstructure 4, 4' relative to one another enables cornering even with small curve radii without the risk of the wheelset falling off the device 1.

Two running wheels 5, 5', 5", 5‴ are rotatably attached to the substructure 3, 3' of both side parts 2, 2'. The running wheels 5, 5', 5", 5‴ allow the movement of the device 1, in particular the movement on rails. The number of wheels 5, 5′, 5″, 5‴ can also deviate from the illustrated embodiment, for example three running wheels 5, 5′, 5″, 5‴ per side part 2, 2‴ or one running wheel 5, 5′, 5″, 5‴ one side part 2, 2' and two running wheels 5, 5', 5", 5‴ on the other side part 2, 2'.

The superstructures 4, 4' each have a receptacle 6, 6', in each of which a wheel of a wheelset can be accommodated. For this purpose, the receptacles 6, 6' are adapted to the external geometries of a typical wheelset. The receptacles 6, 6' are preferably shaped approximately conically, since the wheels of modern rail vehicles have approximately conical treads. The radius of the cone decreases, preferably steadily, from the inside of the receptacle 6, 6' to the outside of the receptacle 6, 6'. In the illustrated embodiment of the device 1, the receptacles 6, 6' are each provided with a recess 7, 7', which serve to support the wheel flange of the wheel to be accommodated. The recess 7, 7' is in each case arranged on the inside of the receptacle 6, 6', it also being possible for a further recess to be provided on the outside in the case of a wheel with a double wheel flange.

The two side parts 2, 2' are connected to one another by a connection via the two superstructures 4, 4'. In the embodiment of the device 1 shown here, the connection is made via two coupling rods 8, 8', which are attached to the respective inner sides of the two superstructures 4, 4'. The connection through the coupling rods 8, 8' is rigid, so that the distance between the superstructures 4, 4' and thus the receptacles 6, 6' is kept constant. In this way, the device 1 can be adapted to a specific track width—for example the distance between two rails (for example standard track=1435 mm). The two substructures 3, 3' are also movably connected to one another via two tie rods 9, 9'. While the coupling rods 8, 8' are rigidly connected to the two superstructures 4, 4', the tie rods 9, 9' are articulated at both ends to the two substructures 3, 3'. The tie rods 9, 9′ thus enable the device 1 to be steered more easily and, in the exemplary embodiment shown, are “at the front” and “at the back” when viewed in the longitudinal direction X of the substructures 3, 3' attached. The length of the coupling rods 8, 8' and the tie rods 9, 9' is preferably such that the device 1 can be moved by means of the running wheels 5, 5', 5", 5‴ on a rail with a common gauge.

In 2 is a section of the in 1 shown device 1 shown in plan view. The already related 1 described areas of the device 1 are in 2 - Provided with corresponding reference symbols - and in all other illustrations. the inside 2 shown section of the device 1 relates to the first side part 2, the statements 2 and to the other figures apply in a corresponding manner to the (not shown) second side part 2 '. The axis of rotation D, about which the superstructure 4 and the substructure 3 can be rotated relative to one another, is located approximately in the middle of the side part 2 . However, the axis of rotation D can also be located at a different point on the side part 2 . When the device 1 moves in a straight line in the direction of the longitudinal direction X ("going straight"), the longitudinal axis L of the superstructure 4 is aligned parallel to the longitudinal direction X and parallel to the direction of travel F. When cornering, however, the longitudinal axis L of the superstructure 4 encloses a steering angle a, a′ with the longitudinal direction X. This steering angle a, a' is limited on both sides in order to prevent excessive twisting between the substructure 3 and the superstructure 4. The amount of the steering angle a, a' is preferably limited to a maximum of 15° per direction, in particular to a maximum of 10° per direction. Furthermore, in 2 recognizable that the device 1 has several quick releases S, which are designed as bolts with fuse and can be attached and detached by hand without additional tools. In this way, the device 1 can be easily dismantled. In the 2 The quick-release clamps S shown connect the side part 2 to the two coupling rods 8, 8' and to the two tie rods 9, 9'.

3 shows the device 1 in a sectional side view along the in 2 marked cutting plane III-III. A wheel 10 of a wheel set, which is accommodated in the receptacle 6 of the superstructure 4, is shown schematically. Of the The wheelset can be lifted with a crane, for example, and placed on the device 1 . For the positive--albeit rotatable--connection between the substructure 3 and the superstructure 4, the substructure 3 has two undercuts 11, 11' and the superstructure 4 has two corresponding projections 12, 12'. In the illustrated embodiment, these are attached approximately symmetrically to the axis of rotation D, opposite one another. The undercuts 11, 11' accommodate the corresponding projection 12,12' and thereby prevent the substructure 3 from being unintentionally separated from the respective superstructure 4.

In 4 the device 1 is shown in a side view. Between substructure 3 and superstructure 4 in the area of the positive connection - formed by the undercuts 11, 11' and the projections 12, 12" - a sliding element 13 is arranged (recognizable in the enlargement in 4 ). The sliding element 13 enables simple and low-friction sliding of the two components when the substructure 3 and superstructure 4 move relative to one another.

figure 5 shows the device 1 from 1 in a sectional side view along the in 4 marked cutting plane VV. In the view shown, the design of the rotatable connection between the substructure 3 and superstructure 4 can be seen particularly clearly, since it is a sectionally sectioned view. The superstructure 4 has a downward projection which is inserted into a recess provided in the substructure 3 . In order to enable low-friction twisting, a slide bushing 16 is also arranged between the superstructure 4 and the substructure 3 . The assembly of superstructure 4 and substructure 3 is not possible in the position shown, since the (in figure 5 not shown) undercuts 11, 11 'and projections 12, 12' would prevent a relative movement between superstructure 4 and substructure 3 in the vertical direction Z. The assembly and disassembly of superstructure 4 and substructure 3 is therefore only possible in a strongly twisted position in figure 5 recognizable that the impeller 5 has an approximately conical tread 14 with a wheel flange 15, whereupon in connection with 6 will be dealt with in more detail.

In 6 Finally, the device 1 is shown in a front view. The running wheel 5 (like all other running wheels 5', 5", 5‴) of the device 1 has a conical running surface 14. The radius of the preferably straight cone tapers from the inside of the side part 2' (on the right in 6 ) towards the outside (left in 6 ). A wheel flange 15 is also provided on the inside of the running wheel 5 . When the device 1 is moving on rails, the wheel flange 15 prevents the running wheel 5 from running outwards and thus the device 1 from derailing 6 recognizable that further quick releases S are provided, with which the impeller 5" can be connected to and separated from the side part 2' (especially with its substructure 3').

Reference list:

1:

contraption

2.2':

side part

3.3':

substructure

4.4':

superstructure

5, 5', 5", 5‴:

Wheel

6.6':

recording

7.7':

recess

8.8':

connecting rod

9.9':

tie rod

10:

wheel

11, 11':

undercut

12, 12':

head Start

13:

sliding element

14:

tread

15:

wheel flange

Q:

driving direction

D, D':

axis of rotation

L, L':

Longitudinal axis of the superstructure

S:

quick release

X:

longitudinal direction

Y:

transverse direction

Z:

vertical direction

α,α':

steering angle

Claims (15)

1. Device (1) for accepting and transporting at least one wheelset of a rail vehicle, comprising:

   - a first side part (2) and a second side part (2'), that are spaced apart from one another
   in the transverse direction (Y),

   - whereby the two side parts (2, 2') are connected to one another,

   - whereby both side parts (2, 2') each have a upper structure (4, 4') and a
   lower structure (3, 3'),

   - whereby both lower structures (3, 3') have at least one track wheel (5, 5', 5", 5‴),
   with which the device (1) can be moved in the longitudinal direction (X) and

   - whereby both upper structures (4, 4') have a receptacle (6, 6'), in which a wheel

   (10) of a wheelset can be accepted,

   characterised in that

   the upper structure (4, 4') of a side part (2, 2') is rotatably mounted relative to the lower structure (3, 3')

   of the same lower structure (2, 2').
2. Device according to claim 1
   characterised in that
   the upper structure (4, 4') of a side part (2, 2') is rotatably mounted about a vertical (Z) axis of rotation (D, D') of this side part (2, 2').
3. Device according to claim 1 or claim 2,
   characterised in that
   the two side parts (2, 2') are connected to one another by means of their upper structures (4, 4').
4. Device according to claim 3,
   characterised in that
   the connection between the upper structure (4) of the first side part (2) and the upper structure (4') of the second part (2') is rigid.
5. Device according to one of the claims 1-4
   characterised by the fact that the two side parts (2, 2') are connected to one another by means of their lower structures (3, 3').
6. Device according to claim 5
   characterised in that
   the connection between the lower structure (3) of the first side part (2) and the lower structure (3') of the second part (2') is movable, and specifically can be swivelled.
7. Device according to claim 5 or claim 6,
   characterised in that
   the connection between the lower structure (3) of the first side part (2) and the lower structure (3') of the second side part (2') is designed as a track rod (9, 9').
8. Device according to one of the claims 1-7
   characterised in that
   the distance between the two side parts (2, 2') in the transverse direction (Y)
   can be adjusted.
9. Device according to one of the claims 1-8
   characterised by
   a connection between the upper structure (4, 4') and the lower structure (3, 3') of the same side part (2, 2'), which is formed by a projection (12, 12') and an undercut (11, 11').
10. Device according to one of the claims 1-9
    characterised in that
    a sliding element (13) is attached between the upper structure (4, 4') and the lower structure (3, 3') of the same side part (2,
    2').
11. Device according to one of the claims 1-10 characterised in that
    the receptacle (6, 6') has at least one recess (7, 7') to secure a wheel flange (15) of a wheel (10) of a wheelset.
12. Device according to one of the claims 1-11
    characterised in that
    at least one section of the receptacle (6, 6') and/or the recess (7, 7') are cone-shaped.
13. Device according to one of the claims 1-12
    characterised in that
    at least one track wheel (5, 5', 5", 5‴) has a wheel flange (15) and/or is cone-shaped.
14. Device according to one of the claims 1-13
    characterised in that

    at least one track wheel (5, 5', 5", 5‴) of a side part (2, 2') has roughly similar

    steering angle (α, α') as a track wheel (5, 5', 5", 5‴) of the other side part (2, 2').
15. Device according to one of the claims 1-14
    characterised in that
    the device is designed to be disassembled and specifically has quick couplers (S) for tool-free assembly and/or disassembly.

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