Work vehicle, use thereof and method for track renovation

Abstract

The present invention provides a track-bound work car (1), its use, and a method for track rehabilitation. The work car (1) has a car frame (2) and wheelsets (3) for travel on a track (20), and at least one trough (4) which has two openable side walls (5) and two end walls (6) and is arranged on the car frame (2), and at least one tipping device which is connected to the trough (4) and the car frame (2) and provides a first tipping axis (K1) and a second tipping axis (K2) parallel to the side walls (5) between the trough (4) and the car frame (2). The first tipping axis (K1) and the second tipping axis (K2) are each assigned to one of the two side walls (5), and the trough (4) can be tipped by means of the tipping device via the first tipping axis (K1) or the second tipping axis (K2).At least one of the two end walls (6) is openable and the tipping device between the trough (4) and the wagon frame (2) provides at least a third tipping axis (K3) which is assigned to and parallel to the first end wall (6), wherein the trough (4) can be tipped over the third tipping axis (K3) by means of the tipping device.

Description

[0001] The invention relates to a track-bound work wagon, its use and a method for rehabilitating a track.

[0002] For track-bound construction and transport services, track maintenance vehicles and track construction machines with various functions are used for the construction or rehabilitation of tracks. Rehabilitation in track construction includes, for example, the renewal of the ballast layer beneath the track. After the removal of the rails and sleepers (the so-called track grid), the excavated material, such as ballast (or ballast and soil), is removed using an excavator and loaded onto transport wagons. These wagons are then used on an adjacent track to transport excavated material between the track construction site and a temporary storage area. Each transport wagon is equipped with one or more skips, mounted on a wagon frame with rail-mounted wheelsets, to hold the excavated material. The loaded transport wagons are then moved along the tracks to the temporary storage area or a final disposal site.Once the transport vehicles arrive at the warehouse, they are unloaded.

[0003] When two-way tipper wagons, e.g., of the Fas type, are used as transport wagons, side unloading is carried out by means of a tipping process. For this purpose, the two-way tipper wagon has a tipping mechanism for tipping the skip to the right or left side of the track, whereby the skip has openable side walls parallel to the track and end walls perpendicular to the track, as well as bearing points on the underside to connect the skip to the wagon frame at the open side wall intended for tipping, forming a tipping bearing.

[0004] Once the excavation work at the track construction site is complete, the transport wagons with their skips can be reloaded with new material at an interim storage area and then moved along the tracks to the construction site. There, the new material is unloaded / tipped sideways and installed in the adjacent track at the construction site using construction equipment. After the track has been laid, a final step is required for ballasting the track. This involves placing layers of so-called backfill ballast between the sleepers, both centrally and laterally, up to the standard track bed profile. Special backfill ballast wagons are used for this purpose. These wagons are moved along the new track and have a filling device at the front, middle, or end to lower the backfill ballast into the track bed and along the sides of the track.In this process, the ballast is installed both alongside the rails (track side areas) and in the middle between the rails (track middle area), usually while the wagons are moving forward.

[0005] Track rehabilitation, including the renewal of the ballast layer beneath the track, therefore requires different work vehicles with corresponding functions for the various construction phases. Maintaining these different work vehicles, which can only be used during specific construction phases, involves high technical and logistical costs.

[0006] Based on this state of the art, the object of the present invention is to provide a track-bound work car with multiple functions, so that the work car can be used flexibly and variably in different construction phases.

[0007] This problem is solved by a work vehicle with the features of claim 1.

[0008] The further problem of using such a multi-functional work vehicle is solved by using the track-bound work vehicle from claim 12.

[0009] Finally, the task of carrying out track rehabilitation in an improved manner is solved by the method with the features of independent claim 13.

[0010] Further developments of the device, its use and the method are described in the respective subclaims.

[0011] According to a first embodiment of a track-bound work wagon according to the invention, the wagon has a frame and wheelsets for moving the work wagon along a track. It has at least one trough with two openable side walls and two end walls; the trough is arranged on the frame. At least one tipping device is connected to the trough and the frame, providing a first tipping axis and a second tipping axis parallel to the side walls between the trough and the frame. The first tipping axis and the second tipping axis are each assigned to one of the two side walls, so that the trough can be tipped selectively over either side wall, i.e., over the first tipping axis or the second tipping axis, by means of the tipping device.According to the invention, at least one of the two end walls of the hopper of the work wagon can also be opened (opened), and the tipping device between the hopper and the wagon frame provides at least a third tipping axis, which is associated with and parallel to the first end wall. By means of the tipping device, the hopper can additionally be tipped over the openable end wall or third tipping axis, so that the work wagon is designed as at least a three-way tipper wagon. This allows bulk material loaded into the hopper of the track-bound work wagon to be unloaded not only to the side of the track, but also, alternatively, into the track. In this way, the track-bound work wagon can perform not only the functions of transporting bulk material on the track and unloading it beside the track, but also functions of installing bulk material into the track.

[0012] According to a further embodiment of the work wagon according to the invention, the second of the two end walls can also be designed to be openable, and the tipping device can additionally provide a fourth tipping axis, which is assigned to the second end wall and is parallel to it, so that the trough can be tipped over the fourth tipping axis by means of the tipping device and the work wagon is designed as a four-way tipping wagon.

[0013] According to a further embodiment of the work cart according to the invention, the tipping device can have at least one lifting device arranged on the cart frame and engaging with the trough. To provide the respective tipping axis, the trough can have bearing points on its underside, each associated with the side walls and the end walls, which can each be connected to corresponding receiving points on the cart frame to form a tipping bearing. That is, the first or second tipping axis is provided by connecting the bearing point(s) associated with the respective side wall to the corresponding receiving point(s) on the cart frame. The third or fourth tipping axis is provided accordingly by connecting the bearing point(s) associated with the respective end wall to the corresponding receiving point(s) on the cart frame.

[0014] Furthermore, according to yet another embodiment of the work wagon according to the invention, the work wagon can have at least two troughs arranged longitudinally one behind the other on the wagon frame and each of which can be tipped independently of one another by at least one of the tipping devices via one of the tipping axes. This creates additional possibilities for unloading into or next to the track.

[0015] According to a preferred embodiment, the work wagon according to the invention has at least one filling device designed for installing ballast in at least one track side area and / or one track center area. It is associated with the openable end wall, through which the hopper is unloaded by tipping.

[0016] According to a further embodiment, this or any filling device can be detachably or adjustably attached to the wagon frame of the work wagon according to the invention, thereby providing variable positioning of the filling device in relation to the trough and / or the track. Thus, the filling device can be mounted on the wagon frame in front of or behind the trough at a distance adapted to the opening angle of the respective end wall and adjusted to the track to be filled, e.g., with regard to width, with respect to the placement of the ballast.

[0017] Furthermore, according to another embodiment of the work vehicle according to the invention, the filling device can have at least one outlet opening whose cross-sectional area can be varied to control the amount of fill gravel used. This refers to a change in the cross-sectional dimensions of the opening or, in the case of multiple outlet openings, their partial closure.

[0018] According to yet another embodiment of the work wagon according to the invention, the filling device can be manually controlled or electrically, hydraulically or pneumatically, or partially or fully automatically by a control device, which is preferably connected to at least one detection unit for an installation parameter that is relevant for the amount of ballast to be installed, such as a ballast requirement in the respective track areas or a speed of the work wagon during filling.

[0019] To vary the distance of the unloading point from the work vehicle, according to a further embodiment of the work vehicle according to the invention, each side wall and each end wall can be designed as a pendulum wall or folding wall or pendulum-folding wall.

[0020] In a modification of this embodiment of the work vehicle according to the invention, the openable side and / or end walls can define one or more openings that can be closed by at least one pendulum wall section, hinged wall section, or hinged-hinged wall section. The openable end wall to which the filling device is assigned can preferably have a variable opening cross-section in order to control the amount of gravel supplied when the filling device is tipped. For this purpose, the end wall can, for example, be divided into several openable sections. It is particularly advantageous for the openable end wall to which the filling device is assigned to be designed as a pendulum wall, in which the opening cross-section can be easily varied by changing the opening angle.

[0021] According to a further embodiment of the work wagon according to the invention, the work wagon according to the invention has a dust containment device with a fluid supply and at least one discharge opening, which is designed for fluid discharge towards an unloading point that is provided when the skip is tipped over the first tipping axis, the second tipping axis, or at least the third tipping axis. The fluid supply can be connected to a fluid reservoir located on the work wagon. Alternatively, the fluid supply can be connected to a fluid line that can be connected to a fluid reservoir on another track-bound wagon, which is coupled to the work wagon directly or indirectly via other track-bound wagons arranged between them. In this context, "fluid supply" is understood to mean a supply device comprising at least one line, a fluid conveying medium, and corresponding connections.In a first variant of the dust containment device, each tilting axis can be assigned at least one of the output openings.

[0022] Preferably, each tipping axis can be assigned several discharge openings, e.g., nozzles, which can be operated separately for fluid discharge towards the unloading point via the respective assigned tipping axis. In other words, the dust containment device has nozzles for fluid discharge towards each possible unloading point of the hopper, and it can be provided that, during unloading via one of the tipping axes, only the nozzles assigned to that same tipping axis are activated for fluid discharge.

[0023] The dust containment device can be permanently installed on the work trolley, or designed as an equipment element for detachable attachment to the work trolley, so that the dust containment device is only mounted on the work trolley when needed, i.e., when dealing with a dust-generating bulk material, and the work trolley can have corresponding mounting points and connections for easy installation.

[0024] In a second variant, the dust suppression device is designed as an optional accessory. In this variant, the dust suppression device, with at least one discharge opening (e.g., with multiple nozzles), is configured to be assigned to one of the tipping axes used for unloading the skip to the unloading point. In other words, the dust suppression device, designed as an optional accessory, has nozzles for only one unloading point, and the assignment of the nozzles to the tipping axis via which the skip is to be unloaded is carried out when the work vehicle is equipped with the dust suppression device.

[0025] Furthermore, according to a further embodiment, the work trolley according to the invention can be provided by a work module arranged on an existing track-bound transport trolley. The transport trolley provides the trolley frame with a transport surface and the wheelsets for moving the work trolley on a track. For placement on the transport surface, the work module has a support base on which the at least one trough and the tipping mechanism of the work trolley are arranged. The support base arranged on the transport surface is considered, with respect to the tipping mechanism, to be part of the trolley frame, with, for example, the lifting device and the mounting points for the tipping bearings being located on the support base.

[0026] One use of the track-bound work wagon according to the invention provides, on the one hand, for the transport of bulk material in the trough and, on the other hand, for the unloading of the bulk material next to the track by tipping the trough over the first tipping axle or the second tipping axle or for installing the bulk material into the track by tipping the trough over the third tipping axle.

[0027] A method according to the invention for rehabilitating a track using at least one track-bound work wagon according to the invention in at least two construction phases comprises the following steps: In a first construction phase for the removal of excavated material at a track rehabilitation site during the dismantling of the old track: a) providing at least one work wagon on a second track adjacent to the track to be rehabilitated and loading at least one skip of the at least one work wagon with the excavated material, b) moving the at least one work wagon with the excavated material from the rehabilitation site to an interim storage area, c) unloading the at least one skip at the interim storage area next to the track by tipping the skip over the first or second tipping axis; and in a second construction phase at the rehabilitation site after new track construction for backfilling the rehabilitated track with ballast: a) providing at least one work wagon at a new material storage area and loading at least one skip with ballast.B) Method of transporting at least one work wagon with the backfill ballast from the temporary storage area to the rehabilitation construction site on the rehabilitated track; C) Unloading the at least one skip into the track by tipping the skip over the third tipping axle, preferably while traveling over the rehabilitation construction site.

[0028] Depending on the length of the renovation site, steps a) to c) can be repeated in the first construction phase and steps A) to C) in the second construction phase, possibly several times.

[0029] Further embodiments, as well as some of the advantages associated with these and other embodiments, will become clearer and more easily understood through the following detailed description with reference to the accompanying figures. Objects or parts thereof that are essentially the same or similar may be provided with the same reference numerals. The figures are merely a schematic representation of one embodiment of the invention.

[0030] This shows: Fig. 1 a schematic side view of two work wagons according to the invention with one trough per railway wagon, Fig. 2 a schematic side view of two work wagons according to the invention with two troughs per railway wagon, Fig. 3 a schematic side view of two work wagons according to the invention with three troughs per railway wagon, Fig. 4 a schematic sectional view through a work wagon according to the invention along section line AA in Fig. 1, 2 or 3Fig. 5 a schematic front view of a work trolley according to the invention with a tipper body tilted over a first tipping axis, Fig. 6 a schematic front view of a work trolley according to the invention with a tipper body tilted over a second tipping axis, Fig. 7 a schematic side view of the two work trolleys according to the invention made of Fig. 1 , whose trough is tipped over a third and a fourth tipping axle, Fig. 8 a schematic side view of the two work wagons according to the invention. Fig. 2 , whose two troughs are each tipped over a third and / or a fourth tipping axle, Fig. 9 a schematic side view of the two work wagons according to the invention. Fig. 3 , whose three troughs are each tipped over a third and / or a fourth tipping axis, Fig. 10 a schematic sectional view through a work wagon according to the invention through section line AA in Fig. 7, 8 or 9, Fig. 11 a schematic side view of two work trolleys according to the invention Fig. 7 with the filling devices associated with the troughs, Fig. 12 a schematic side view of two work trolleys according to the invention Fig. 8 with the filling devices associated with the troughs, Fig. 13 a schematic side view of two work trolleys according to the invention Fig. 12 with alternatively arranged filling devices of a railway wagon, Fig. 14 a schematic side view of two work wagons according to the invention Fig. 9 with the filling devices associated with the troughs, Fig. 15 a schematic sectional view through a work wagon according to the invention through section line AA in Fig. 11 , 12, 13 or 14 , Fig. 16 a schematic sectional view through a work trolley according to the invention through section line BB in Fig. 14Fig. 17 Schematic front views of a work trolley according to the invention with folding side walls on the trough a) in transport position, b) tipped over the first tipping axis and c) tipped over the second tipping axis, Fig. 18 Schematic front views of the work trolley according to the invention made of Fig. 17 with bulk material loading a) during transport, b) during unloading by tipping over the first tipping axis and c) during unloading by tipping over the second tipping axis, Fig. 19 schematic front views of a work trolley according to the invention with pendulum side walls on the trough a) in transport position, b) tipped over the first tipping axis and c) tipped over the second tipping axis, Fig. 20 schematic front views of the work trolley according to the invention made of Fig. 19with bulk material loading a) during transport, b) during unloading by tipping over the first tipping axis and c) during unloading by tipping over the second tipping axis, Fig. 21 a schematic side view of a work cart according to the invention in an embodiment with a device for dust containment, Fig. 22 a schematic front view of the work cart made of Fig. 21 , Fig. 23 a schematic front view of the work vehicle made of Fig. 22with a tipper body tilted over the second tipping axis, Fig. 24 a schematic sectional view through a work wagon according to the invention with a dust containment device with a tipper body tilted over the third tipping axis, Fig. 25 a schematic side view of two coupled work wagons according to the invention with a dust containment device, Fig. 26 a schematic side view of a work wagon according to the invention coupled to a tank wagon with a dust containment device, Fig. 27 a schematic side view of a work wagon according to the invention consisting of a work module arranged on a transport wagon, Fig. 28 a flow diagram of the method for rehabilitating a track.

[0031] The invention relates to a track-bound work wagon and its use in a track rehabilitation method. The work wagon is not only suitable for transporting excavated material, bulk goods, and other materials, but also includes the function of backfilling a track.

[0032] The figures show examples of a work car 1 according to the invention, each comprising a car frame 2 and wheelsets 3 for travel on a track 20. The track 20 is shown in the figures only by means of the rails 23 and sleepers 24; the ballast bed and the underlying subgrade protection layer and subgrade base have been omitted for clarity. The track-bound work car 1 can be coupled to another work car 1, such as in a wagon coupling 15. Figs. 1 to 3 , 7 to 9 , 11 to 14 , 25 depicted, or with railway carriages of a different type as in Fig. 26The figures show the units being connected to form a train of wagons that can be moved by at least one tractor unit via track 20. The depiction in some figures with two work wagons 1 arranged one behind the other is not intended to represent a limitation; of course, it is also possible to use the work wagon 1 alone or in a train of wagons with more than two work wagons 1.

[0033] On the wagon frame 2 of each work wagon 1, in the example of Fig. 1 and 4A trough 4 is arranged for receiving bulk material 25, which may be, for example, excavated material from a track construction site such as old ballast or soil, or new construction material intended for installation such as new ballast or backfill ballast. The trough 4 has two openable side walls 5 and two openable end walls 6 and is connected to the wagon frame 2 via a tipping mechanism, which provides four tipping axes K1, K2, K3, K4 for tipping the trough 4. A first tipping axis K1 and a second tipping axis K2 run parallel to the side walls 5, i.e., approximately parallel to the track 20 or its rails 23 as shown in Fig. 1 indicated, whereby the first tilting axis K1 of the in Fig. 4 The right side wall 5 and the second tipping axis K2 are assigned to the left side wall 5. This allows the tipper body 4 to be optionally tipped via the first tipping axis K1 ( Fig. 5 ) or via the second tipping axis K2 ( Fig. 6) be tipped out so that the bulk material 25 from the skip 4 is unloaded to the right or left next to track 20.

[0034] A third tilting axis K3 and a fourth tilting axis K4 run parallel to the end walls 6, i.e., perpendicular to track 20 and parallel to the sleepers 24, respectively, as shown in Fig. 4 is indicated, whereby the third tilting axis K3 of the in Fig. 1 The left end wall 6, which is defined here as the rear end wall 6, and the fourth tipping axis K4 are assigned to the right, and consequently front, end wall 6. This allows the skip 4 to be tipped either via the third tipping axis K3 or via the fourth tipping axis K4 towards track 20, so that the bulk material 25 is unloaded from the skip 4 either to the rear or front into track 20, as appropriate. Figs. 7 to 10 can be removed. Fig. 7shows the left-hand work wagon 1 tipped over the third tipping axle K3, so that the bulk material 25 from the hopper 4 is tipped to the rear (into the plane of the drawing). Fig. 10 ) is unloaded into track 20. The right-hand work car 1 in Fig. 7 The tipper 4 is shown tipped over the fourth tipping axle K4, so that the bulk material 25 from the tipper 4 is unloaded accordingly at the front into track 20.

[0035] Alternatively, in an alternative work wagon 1 according to the invention, only one of the end walls 6 is designed to be openable, and the tipping device provides only three tipping axes K1, K2, K3, so that the hopper 4 can be tipped either to the right or left of the track 20 via the first or second tipping axis K1, K2, or towards the track 20 via the third tipping axis K3. A variation of the unloading direction towards the track 20, either forwards or backwards, is still possible by positioning the work wagon 1 with the openable end wall 6 facing forwards or backwards when assembling a wagon train.

[0036] Unlike Fig. 1 , 7 and 11 points out the in Figs. 2 and 3 , 8 and 9 , 12 to 14The illustrated work trolley 1 has two or three troughs 4 arranged longitudinally one behind the other on the trolley frame 2. For the sake of clarity, not all details are shown, but they are readily apparent from the similarity to the work trolley 1 with one trough 4. The above and following descriptions of the work trolley 1 with a single trough 4 on the trolley frame 2 apply accordingly to the work trolleys 1 with two or more troughs 4 on the trolley frame 2. The troughs 4 of a work trolley 1 can be tipped independently of one another by means of a respective tipping device, optionally via a tipping axis K1, K2 of the side walls 5 or a tipping axis K3, K4 of the openable end wall 6.

[0037] This shows Fig. 8 and 12The two hoppers 4 of the left-hand work car 1 in the illustration and the left hopper 4 of the right-hand work car 1 are tipped to the left (i.e., to the rear according to the definition above) around the third tipping axis K3, while the right-hand hopper 4 of the right-hand work car 1 is shown tipped to the right, or forward, around the fourth tipping axis K4. In this way, the bulk material 25 is unloaded into track 20 behind and in the middle of the left-hand work car 1, as well as in front of and behind the right-hand work car 1. Fig. 13 In the diagram, which also shows two work cars 1, each with two skips 4, the two skips 4 of the right-hand work car 1 are tipped in the opposite direction, i.e., the left-hand skip 4 is tipped to the right / forward via the fourth tipping axle K4, and the right-hand skip 4 is tipped to the left / rear via the third tipping axle K3. Thus, the unloading of the two skips 4 of the right-hand work car 1 takes place at the same unloading point in the middle of the right-hand work car 1.

[0038] The two work vehicles 1 with the three skips 4 in Fig. 9 and 14 On the left-hand work car 1, the right-hand skip 4 is shown tipped to the right / forward via the fourth tipping axle K4, while the two other skips 4 are each tipped to the left / rear via their third tipping axle K3. Unloading into track 20 takes place accordingly in front of and behind the left-hand work car 1, as well as in the rear third of the left-hand work car 1. On the right-hand work car 1, the two outer skips 4 are each tipped to the right / forward via the fourth tipping axle K4, and the middle skip 4 is shown tipped to the left / rear via its third tipping axle K3, so that the left-hand and middle skips 4 of the right-hand work car 1 share a common unloading point in the rear third of the right-hand work car 1, while the unloading point of the right-hand skip 4 into track 20 is located in front of the right-hand work car 1.

[0039] In the examples shown, the tipping device for tipping the skip 4 has a lifting device 7, which is arranged on the wagon frame 2 and engages with the skip 4. Depending on the size of the skip 4 and / or the permissible load weight, a tipping device can have more than one lifting device 7. For example, a multi-stage hydraulic telescopic cylinder, as shown in [reference to figure], can serve as the lifting device 7. Fig. 5, 6 depicted, or another lifting device known from the prior art may be used. Figs. 7 to 9 , 11 to 14 , 17 to 20 The lifting device 7 is only indicated by a rectangle. For engagement with the recess 4, the lifting device 7 can, for example, have a ball socket (not shown) to form a ball joint with the recess 4, which allows the recess 4 to be tilted in different directions during the lifting process.

[0040] Furthermore, the tipping device comprises bearing points 8 on the underside 4' of the trough 4 and correspondingly arranged receiving points 8' on the wagon frame 2 (shown in Fig. 5, 6 ), which can be connected to form a tipping bearing 9 to provide one of the tipping axes K1, K2, K3, K4. Accordingly, the bearing points 8 on the underside 4' of the trough 4 are assigned to the side walls 5 and the end walls 6. Preferably, more than one tipping bearing 9 is provided for each tipping axis K1, K2, K3, K4, for which two or, if necessary, more bearing points 8 per side and end wall 5, 6 can be formed on the underside 4' of the trough 4 and the corresponding receiving points 8' on the wagon frame 2. For example, the bearing points 8 or the receiving points 8' can be designed as tipping bushings that can be connected to each other by a locking pin to form a tipping bearing 9.

[0041] In Fig. 5The bearing and receiving points associated with the right side wall 5 are connected to form a tipping bearing 9, which provides the first tipping axis K1. All other bearing and receiving points are not connected, as can be seen at the bearing point 8 associated with the left side wall 5 on the underside 4' of the trough 4, which is not connected to the corresponding receiving point 8' on the wagon frame 2. Under the action of the lifting device 7, the trough 4 tilts accordingly to the right and is tipped over the first tipping axis K1. Fig. 6 The situation is shown reversed: There, the bearing and receiving points assigned to the left side wall 5 are connected to a tipping bearing 9, which provides the second tipping axis K2, while the other bearing and receiving points 8, 8' are not connected in order to provide the tipping of the hopper 4 when the lifting device 7 is lifted to the left via the second tipping axis K2.

[0042] Figs. 11 to 16Examples illustrate a work car 1 with filling devices 10 for installing filling ballast 25 into the track 20. The work car 1 with a trough 4 in Fig. 11 has a filling device 10 with two side filling devices 10a each for the two track side areas 21 and two central filling devices 10b for the track center area 22, as shown in Figs. 15 and 16 The filling device 10 is associated with the openable end wall 6, over which the skip 4 is tipped, and is attached to the wagon frame 2 in such a way that the ballast 25 in the skip 4, when the skip 4 is tipped, passes over the openable end wall 6 into the filling device 10, through which the ballast 25 is installed in the track side areas 21 and the track center area 22. That is, the unloading point of the skip 4 and the installation point of the filling device 10 are coordinated. In the example shown, Fig. 11The installation points of the filling devices 10 of the two work vehicles 1 are located in front of and behind the work vehicles 1, corresponding to the respective unloading point of the skip 4.

[0043] A work vehicle 1 with more than one hopper 4 allows for different arrangements of filling devices 10, as shown in the examples in Figs. 12 to 14 show, and thus an adaptation of the work car 1 to the ballast filling requirement in track 20. For example, a work car 1 with two skips 4 or three skips 4 can have an associated filling device 10 for each skip 4 at separate unloading points, as shown in Fig. 12 based on both work vehicles 1 and in Figs. 13 and 14This can be seen on the left-hand side of the work wagon 1. Depending on the position of the openable end wall 6 or the intended tipping direction of the respective skip 4, the associated filling device 10 is arranged in front of or behind the skip 4 on the wagon frame 2. If two skips 4 of a work wagon 1 have a common unloading point, as Figs. 13 and 14 As can be shown using the example of the right-hand work wagon 1, instead of two filling devices 10 arranged side by side, a common filling device 10 can be used, which is designed accordingly for the installation of filling gravel 25 from two troughs 4 one after the other or simultaneously.

[0044] The filling devices 10 are attached to the wagon frame 2 in a detachable, adjustable, or both manner, in order to position them appropriately for the tipping area or unloading point of the skip 4 in relation to the track 20 into which the ballast 25 is installed. The amount of ballast passed through the filling devices 10 can be varied and thus metered. For example, the opening cross-section of an outlet opening 10' of the filling device 10 can be varied. The cross-section or diameter of the opening 10' can be increased or decreased, for example, by means of slides, baffles, or similar devices, in order to precisely and accurately introduce the ballast into the track.Alternatively, a filling device can have different outlet openings that can be selected for use, or the number of open outlet openings of a filling device with multiple outlet openings can be varied.

[0045] The lateral and central filling devices 10a, 10b, also called ballast hoses, can be controlled in combination or individually, so that the amount of ballast installed can be continuously adjusted to precisely match the ballast requirements in the respective track area 21, 22. In this way, the filling ballast 25 can be precisely metered and discharged between or alongside the rails 23 and filled into the track 20 from above. These filling devices 20 can be manually or electrically controlled, semi-automated, fully automated, hydraulically, or otherwise controlled. A corresponding control device (not shown) can be connected to at least one detection unit in the case of partial or full automation, which detects a flow-rate-relevant installation parameter for the filling ballast 25. This could be, for example,This concerns the speed of the work car 1 or the ballast requirement in the respective track area, which is determined by an actual profile of the ballast bed that deviates from the standard ballast profile.

[0046] Further variations are possible through different designs of the openable side walls 5 and end walls 6, which are based on Figs. 17 to 20 for the side walls 5 will be illustrated. In Figs. 17 to 20 The work wagon 1 with the hopper 4 is shown in a) the transport position not tipped, b) the position tipped over the first tipping axle K1, and c) the position tipped over the second tipping axle K2. Figs. 17 and 18 The side walls 5 are designed as hinged walls 5, so that the material 25 is unloaded further away from track 20 when tipping than if the side walls 5 were designed as swing walls 5, as in Figs. 19 and 20As shown. Therefore, the distance between the unloading point and the hopper 4 can be varied by selecting the opening variant. Furthermore, the pendulum wall offers the possibility of controlling the material throughput during unloading by adjusting the opening cross-section via the opening angle of the pendulum wall.

[0047] The openable end walls 6 can also be designed as hinged or folding walls, so that the following descriptions apply to the end walls 6 with corresponding modifications. However, in conjunction with an associated filling device 10, the design of the end wall 6 as a hinged wall may be preferred, which, with an adjustable opening angle, enables precise metering during the feeding process by tipping the backfill gravel 25 into the filling device 10. As a flow-rate-relevant installation parameter, the opening angle of the hinged end wall 6, as well as a tilting angle of the trough 4, can be controlled by the control unit of a semi- or fully automatic design or detected by a sensor unit.

[0048] For the version with folding wall ( Figs. 17, 18The trough 4 has a hinged bearing 12' on the bottom side of each side wall 5 and a locking device 13 in the upper edge area, which is closed in the transport position a) and open or released in the tilted position b), c). To close the unfolded side wall 5, the locking device 13 can be engaged with a receiving point 14 on the side wall 5. The trough 4 has the following features for the version with a hinged wall ( Fig. 19, 20 ) on each side wall 5 in the upper edge region, a pendulum bearing 12 and a locking device 13 on the bottom side are located, which is closed in the transport position a) and open or released in the tilted position b), c). To close the pendulum-mounted side wall 5, the locking device 13 can be engaged with a receiving point 14 on the side wall 5.

[0049] Alternatively, the side walls 5 of the trough 4 of the in Figs. 17 to 20The work trolley 1 shown is designed as a hinged folding wall, which can be opened either as a hinged wall or a hinged wall. The locking devices 13 are provided by bearing points 13, which are designed to be connected to the receiving points 14 for the hinged bearing 12 in the upper edge region and for the hinged bearing 12' at the bottom. That is, each side wall 5 has receiving points 14 at its end-face edges, which adjoin the end walls 6, at the bottom and in the upper edge region. Correspondingly, the locking devices / bearing points 13 are arranged at the bottom and in the upper edge region on the lateral edge regions of each end wall 6. A hinged wall is formed when the bearing points 13 and receiving points 14 in the upper edge region are connected to form a hinged bearing 12 and the bottom-face bearing points 13 and receiving points 14 are released.A hinged wall is created when, conversely, the bottom bearing points 13 and receiving points 14 are connected to form a hinged bearing 12' and the bearing points 13 and receiving points 14 are released in the upper edge area.

[0050] Further modifications of a work trolley 1 according to the invention, not shown in the figures, relate to the fact that, in the case of one or more openable side or end walls 5, 6, not the entire trough wall is designed to open, but rather an opening (or several openings) is defined, which can be closed by a correspondingly dimensioned wall section (or several wall sections). Each wall section can be designed as a hinged wall, a folding wall, or a hinged-folding wall, as described above, wherein the corresponding bearing points or locking devices and receiving points for forming a hinged and / or folding bearing are provided on the wall areas of the side or end walls 5, 6 and the wall sections that define the opening.

[0051] In Figs. 21 to 26Examples of different embodiments of a work cart 1 according to the invention with a dust containment device 16 are shown. This device has a fluid supply 17 and nozzles 18, which are arranged, for example, on a frame structure above the side walls 5 and end walls 6 of the trough 4. The nozzles 18 are arranged or aligned such that a fluid fed in through the fluid supply, such as water, is discharged through the nozzles as a spray mist or spray curtain 18' in the direction of a discharge point. The discharge point in Fig. 23 The container is located to the right of track 20 and is provided by tipping the skip 4 over the first tipping axis K1. To reduce dust generation during the unloading of the bulk material 25, a spray curtain 18' is generated by means of the nozzles 18, which are arranged above the tipped side wall 5, i.e., assigned to the first tipping axis K1. Fig. 24shows a work wagon 1 tipped over the third tipping axle K3 during the unloading of the bulk material 25 into the central and side areas of track 20 by means of corresponding filling devices 10a, 10b. Fig. 16 In contrast, in Fig. 24 a dust containment device 16 for a spray curtain 18', which is generated by the nozzles 18 assigned to the third tilting axis K3 above the tilted end wall 6.

[0052] The fluid supply 17 of the dust containment device 16 comprises a conveying means for the fluid, e.g., a pump, from which a line leads to the nozzles 18. Furthermore, the fluid supply 17 in the example of Fig. 25connected via a line 17' to a fluid reservoir 19, which is located on the same work car 1 – here below the trough 4 in the area of ​​the car frame 2. Alternatively, such a fluid reservoir can also be located next to or on the trough 4 (not shown). Another alternative is shown in Fig. 26 shown, wherein the fluid supply 17 of the dust containment device 16 is connected via a line 17' to a fluid reservoir 19 which is provided by a track-bound tank car 19' coupled to the work car 1.

[0053] The dust containment device 16 can be designed as an accessory for installation on the work trolley 1, so that the work trolley 1 is only equipped with the device 16 when required. As an accessory, the device 16 may not be equipped with nozzles 18 for each tiltable side and end wall 5, 6, but may only provide nozzles for installation above the respective tiltable side or end wall 5, 6. For connection to a fluid reservoir 19 on the same work trolley 1 or a coupled trolley 19', the fluid supply 17 may have a fluid connection for easy connection to the line 17'.

[0054] The nozzles 18 can be aligned with the unloading point either with the hopper 4 or with the wagon frame 2, depending on whether the device 16 is connected to the hopper 4 or statically mounted on the work wagon 1. If the device 16 is coupled to the hopper 4 as shown, so that the nozzles 18 directed towards the unloading point pivot along with it during tipping, the relative position and alignment of the nozzles 18 with respect to the hopper 4 always remain the same. The nozzles are then aligned with respect to the hopper 4. Alternatively, the nozzles are aligned with respect to the wagon frame if the device 16 is attached to the wagon frame 2 and the position of the nozzles does not change when the hopper is tipped. It would also be conceivable that the nozzles are aligned on-site depending on the flow properties of the bulk material during unloading and, if applicable, any existing track gradient at the unloading point.

[0055] The work car 1 can be designed as a completely independent structure consisting of wheelsets 3, car frame 2, and tipper body 4 with tipping mechanism. Alternatively, the work car 1 can be designed as shown in Fig. 27The system is depicted as a superstructure, wherein a suitably designed work module 1' is mounted onto a commercially available wagon base structure, such as a conventional transport wagon 3'. This conventional wagon 3' has the wagon frame 2 and the wheelsets 3, as well as a transport surface associated with the wagon frame 2, on which the work module 1' is arranged. The work module 1' comprises a trough 4 with a tipping mechanism, which is mounted on a support base 2'. The work module 1' can be designed according to the previously described work wagon 1, with the mounting points 8' for forming the tipping bearings 9 being located on the support base 2'. After the module 1' is arranged on the transport surface of the transport wagon 3', the support base 2' is fixed in position relative to the wagon frame 2 and can therefore be considered functionally as part of the wagon frame 2 in this context.

[0056] The work wagon 1 can be used for transporting bulk material in the trough 4 and for unloading the bulk material next to the track 20 by tipping the trough 4 laterally about one of the side-wall parallel tipping axes K1, K2 or by tipping the trough 4 towards the track 20 about one of the end-wall parallel tipping axes K3, K4, in particular in conjunction with a filling device 10 for installing filling ballast 25 into the track center and side areas 22, 21.

[0057] The procedure for rehabilitating track 20 in at least two construction phases I and II using at least one work car 1 is described in Fig. 28The first construction phase (I) outlines and includes the removal of excavated material 25 generated at a rehabilitation site of track 20. In step a), the work car 1 (or work cars 1) is positioned at the rehabilitation site on a second track 20 adjacent to the track 20 being rehabilitated, and the skip(s) 4 are loaded with the excavated material 25. In step b), the work car 1 (or work cars 1) with the excavated material 25 is transported from the rehabilitation site to an interim or final storage area. In step c), the skip(s) 4 are unloaded next to track 20 by tipping the skip 4 over the first or second tipping axis K1, K2, as shown in [reference missing]. Fig. 5, 6 and also in Fig. 18, 20Step d) refers to the optional repetition of steps a) to c) and includes the procedure of moving the work car 1 (the work car 1) unloaded at the interim storage area to the second track 20 at the renovation site until the excavation work at the renovation site is completed.

[0058] In the second construction phase II, concluding the rehabilitation of track 20, work car 1(s) will be deployed at the rehabilitation site to fill the rehabilitated track 20 with ballast 25. In step A), work car 1 will be positioned at a material storage area, and the skip(s) 4 will be loaded with ballast 25. Loading equipment such as excavators or wheel loaders will be used for this purpose. The material storage area can be located at the same or a different location as the interim storage area used in construction phase I. In step B), work car 1 (or the work cars) will then be transported with the ballast 25 from the material storage area to the rehabilitation site, now on the rehabilitated track 20. There, in step C), the skip(s) 4 will be tipped over the third tipping axle K3, and the ballast 25 will be installed into track 20, as described in the [document / section]. Figs. 7 to 10 , and using filling devices 10 in Figs. 11 to 16This is shown. In this final step of the process for ballasting track 20, following its laying, the backfill ballast 25 is installed in layers between the sleepers 24, centrally and laterally, up to the standard track bed profile. The backfill ballast 25 falls from above into the track grid and is preferably filled / placed in a forward movement over the track, both into the track side areas 21 and the track center area 22.

[0059] Furthermore, in the second construction phase II, before backfilling the rehabilitated track 20 with ballast 25, work car 1 can also be used to transport other new materials such as gravel / roadside material / ballast ballast during the track rehabilitation. For this purpose, work car 1 is also loaded with the new material at an intermediate or new material storage area, but the transport to the rehabilitation construction site takes place on the adjacent track 20, and unloading is carried out by tipping over the first or second tipping axle K1, K2 next to track 20.

[0060] The work vehicle 1 can therefore be used for different work steps in various construction projects at different stages of construction. This reduces the investment and maintenance costs for a vehicle operator and the direct installation costs on the construction site. Furthermore, the logistical handling of a single vehicle type is simpler than when using multiple vehicle types. REFERENCE MARK LIST

[0061] 1 Track-mounted work car 1'Work module 2 Car frame 2'Support base 3 Wheelset 3'Transport car 4 Trough 4'Underside 5 Side wall (folding wall / pendulum wall) 6 End wall 7 Lifting device 8 Storage point 8'Loading point 9 Tipping bearing 10, 10a, 10b Filling device, side, central filling device 10'Outlet opening 11 Storage point 11'Loading point 12 Pendulum bearing 12'Folding bearing 13 Locking device / Storage point 14 Loading point 15 Car coupling 16 Dust containment device 17, 17'Fluid supply, fluid line 18, 18'Outlet opening / nozzles, fluid curtain 19, 19'Fluid reservoir, tank car 20 Track 21 Track side area 22 Track center area 23 Rail 24 Sleeper 25 Excavated / New material / Backfill ballast / Bulk material K1, K2 Tipping axes longitudinal to the track K3, K4 Tipping axes transverse to the track

Claims

1. A track-bound work car (1) comprising - a car frame (2) and wheel sets (3) for moving the work car (1) on a track (20), and - at least one trough (4) having two openable side walls (5) and two end walls (6) and arranged on the car frame (2), and - at least one tilting device connected to the trough (4) and the car frame (2) and providing a first tilting axis (K1) and a second tilting axis (K2) parallel to the side walls (5) between the trough (4) and the car frame (2), wherein the first tilting axis (K1) and the second tilting axis (K2) are each assigned to one of the two side walls (5), and wherein the trough (4) can be tilted by means of the tilting device via the first tilting axis (K1) or the second tilting axis (K2), characterized in thatat least a first of the two end walls (6) can be opened, and the tilting device provides at least one third tilting axis (K3) between the trough (4) and the carriage frame (2), which is associated with the first end wall (6) and parallel thereto, wherein the trough (4) can be tilted by means of the tilting device via the third tilting axis (K3).

2. Work car (1) according to claim 1, characterized in that the second of the two end walls (6) is openable, the tilting device provides a fourth tilting axis (K4) between the trough (4) and the carriage frame (2), which is associated with the second end wall (6) and parallel thereto, wherein the trough (4) can be tilted by means of the tilting device via the fourth tilting axis (K4).

3. Work car (1) according to claim 1 or 2, characterized in thatthe tilting device has at least one lifting device (7) which is arranged on the carriage frame (2) and engages with the trough (4), wherein the trough (4) has on its underside (4') bearing points (8) assigned to the side walls (5) and the end walls (6), which can each be connected to correspondingly arranged receiving points (8') on the carriage frame (2) to form a tilting bearing (9) for providing the respective tilting axis (K1, K2, K3, K4).

4. Work car (1) according to at least one of claims 1 to 3, characterized in that the work carriage (1) has at least two troughs (4) which are arranged one behind the other in the longitudinal direction on the carriage frame (2) and which can be tilted independently of one another by at least one of the tilting devices via one of the tilting axes (K1, K2, K3, K4).

5. Work trolley (1) according to at least one of claims 1 to 4, characterized in thatthe work carriage (1) has at least one filling device (10) which is designed to install filling ballast (25) in at least one track side region (21) and / or a track center region (22) of the track (20) and is assigned to the openable end wall (6).

6. Work car (1) according to claim 5, characterized in that the filling device (10) is detachably or adjustably attached to the wagon frame (2), whereby a variable positioning of the filling device (10) with respect to the trough (4) and / or the track (20) is provided.

7. Work car (1) according to claim 5 or 6, characterized in that the filling device (10) has at least one outlet opening (10') which can be varied with regard to its opening cross-section.

8. Work car (1) according to at least one of claims 5 to 7, characterized in thatthe filling device (10) is controlled manually or electrically, hydraulically or pneumatically, manually or automatically by a control device which is preferably connected to at least one recording unit for an installation parameter.

9. Work car (1) according to at least one of claims 1 to 8, characterized in that each side wall (5) and each end wall (6) is designed as a pendulum wall and / or folding wall, wherein preferably the openable end wall (6) to which the filling device (10) is assigned is variable with regard to its opening cross-section and / or is designed as a pendulum wall.

10. Work car (1) according to at least one of claims 1 to 9, characterized in thatthe work carriage (1) has a device (16) for dust containment with a fluid supply (17) and at least one discharge opening (18) which is designed to discharge fluid in the direction of an unloading point which is provided when the trough (4) is tipped over the first tilting axis (K1) or the second tilting axis (K2) or the at least third tilting axis (K3, K4), wherein the fluid supply (17) is connected to a fluid reservoir (19) on the work carriage (1) or to a fluid line (17') which is connectable to a fluid reservoir (19) on a rail-bound wagon (19') coupled to the work carriage (1), and wherein - at least one of the discharge openings (18) is assigned to each tilting axis (K1, K2, K3, K4), or - the at least one discharge opening (18) is assignable to one of the tilting axes (K1, K2, K3, K4), which for tipping the trough (4) to provide the unloading point.

11. Work car (1) according to at least one of claims 1 to 10, characterized in that the work carriage (1) is provided by - a work module (1') which has the at least one trough (4) and the tipping device arranged on a support base (2'), and - a transport carriage (3') which has the carriage frame (2) and the wheel sets (3) for moving the work carriage (1) on a track (20) and a transport surface on which the work module (1') is arranged.

12. Use of the work carriage (1) according to at least one of claims 1 to 11 for transporting bulk material in the trough (4) and for unloading the bulk material next to the track (20) by tipping the trough (4) via the first tilting axis (K1) or the second tilting axis (K2) or for installing the bulk material in the track (20) by tipping the trough (4) via the third tilting axis (K3, K4).

13. A method for rehabilitating a track (20) using at least one work carriage (1) according to at least one of claims 1 to 11 in at least two construction phases, comprising the steps - in a first construction phase for transporting excavated material (25) at a rehabilitation construction site of the track (20) to be rehabilitated: a) providing the at least one work carriage (1) on a second track (20) adjacent to the track (20) to be rehabilitated and loading the at least one trough (4) of the at least one work carriage (1) with the excavated material (25), b) moving the at least one work carriage (1) with the excavated material (25) from the rehabilitation construction site to an intermediate storage facility, c) unloading the at least one trough (4) at the intermediate storage facility next to the track (20) by tipping the trough (4) over the first tilting axis (K1) or the second tilting axis (K2),and - in a second construction phase at the rehabilitation site for filling the rehabilitated track (20) with backfill ballast (25) A) providing the at least one work car (1) at a new material storage facility and loading the at least one trough (4) with backfill ballast (25), B) moving the at least one work car (1) with the backfill ballast (25) from the intermediate storage facility to the rehabilitation site on the rehabilitated track (20), C) unloading the at least one trough (4) into the track (20) by tipping the trough (4) over the third tilting axis (K3, K4).

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