EP3282055A1 - Work trolley combination, and method for treating the ballast of a railway track - Google Patents

Abstract

The present invention provides a work wagon unit (1) for processing the ballast bed (2) of a railway track and a corresponding method. The work cart unit (1) has at least one removal unit (10) for dismantling the ballast bed (2) and in the working direction (A). of the wagon body (1) subsequently has at least a first work-up work carriage (11), which has a screening device (13) on an end of the work-up work carriage (11) remote from the removal unit (10). Further, it has at least, in each case a roof conveyor belt (15) which extends to a feed point of the screening device (13), a longitudinal conveyor belt (16) extending along the work-up work carriage (11) and a transfer conveyor belt (16) associated with the bottom conveyor belt (16). 17). The passage size of the screening device (13) of the first work-up work carriage (11) is adapted to a first coarse fraction (4) with a predetermined coarsest grain of the ballast of ballast (2) after its removal and after promotion of the expansion unit (10) to catch the roof conveyor (15) to the screening device (13) in the first work-up truck (11). Furthermore, the refurbishment work cart has a storage volume (14) for the coarse fraction (4), and the sieve device (13) is assigned at least one transfer conveyor belt (18) extending from an outlet side of the sieve device (13) for further conveying a first fine fraction (3 ) of the ballast of the excavated ballast bed (2), which passes through the screening device (13), in the direction of a working carriage (1) following the working carriage (1), which comprises a second work-up truck (11) or another work carriage (12 ).

Description

The invention relates to a work wagon association and a method for processing the ballast bed of a track of a railway line.

From the prior art, methods and devices for the rehabilitation of ballast bedding and, where appropriate, of the earth foundation or subgrade of a track are known. In the process, old gravel is removed, fractionated and cleaned along a track construction site, so that the cleaned gravel can be re-installed in the track construction site after temporary storage, possibly with the addition of new ballast EP 2 787 121 A1 discloses a method in which excavated ballast within a conveyor trolley association is fractionated from series processing carts to different granulations to recycle not only the coarse fraction reusable as ballast, but also finer rock aggregates, e.g. B. in the renewal of the subgrade, so that only a minimum of waste to be disposed of accumulates. Hereby, the excavated gravel is successively fed via roof conveyor belts to the stacking processing trolleys, wherein the screening devices have increasing passage size with increasing distance to the expansion unit, so that in each trolley fine grain with increasing grain size is obtained for further processing or storage, ie the farther away from the expansion unit, the coarser the grit. The coarse fraction, which has the desired grain size for reuse as gravel, is therefore obtained in a distant from the construction site car, processed and possibly stored there.

Starting from this prior art, it is an object of the present invention to provide an improved method for the provision of prepared ballast with a device, which is also flexible to use.

This object is achieved by a work car association having the features of claim 1 and by a method having the features of independent claim 14.

Further developments are set forth in the subclaims.

An embodiment of a work truck association according to the invention for processing the ballast bed, but possibly also for processing the substructure of a Track of a railway line, has at least one expansion unit to expand the ballast and depending on the requirements of the further substructure of the track and has in the direction of the wagon association below at least a first work-up work car. This comprises a screening device at a far end of the processing unit to the expansion unit, and at least one roof conveyor extending to a feeding point of the screening device, extending along the work-up truck floor conveyor belt and the bottom conveyor belt associated transfer conveyor on.

According to the invention, a passage size of the screening device of the first processing work truck is designed such that a first coarse fraction having a predetermined coarsest particle size of the ballast of the ballast after its removal and after being conveyed from the expansion unit via the roof conveyor to the screening device in the first processing Work car can be caught. For this purpose, the work-up truck has a storage volume for the coarse fraction, which is defined inter alia by the bottom conveyor belt, which is operated in an operating direction corresponding to the working direction of the wagon association.

The storage volume of the invention is defined by a cross-sectional area within the work-up truck, wherein the cross-sectional area of the storage volume may be smaller than the cross-sectional area of the work-up truck.

The resulting in the first refurbishment work car coarse fraction is thus not only worked up in this first refurbishment work car, but also cached, so at any time regardless of the removed ballast sufficient processed gravel for reinstallation in the working direction and on the bottom conveyor a transfer conveyor belt Installation device, or a pure intermediate storage vehicle, can be supplied.

Furthermore, at least one transfer conveyor belt is assigned to the screening device of the processing work cart, which extends from an outlet side of the screening device for further conveying a first fine fraction of the ballast of the excavated ballast bed passing through the screening device in the direction of a work carriage following in the working direction of the carriage assembly; Refurbishment work cart or another work trolley that is not a refurbishment work cart.

According to a further embodiment, the work truck association can therefore advantageously have at least one second work-up work car in addition to the first work-up work car in the working direction of the carriage association, the second and each further work work trolley each having a screening device at an end of the work-up unit remote from the removal unit. Work cart and a storage volume for a grain fraction has. Furthermore, each refurbishment work trolley has at least one roof conveyor belt which extends up to a feed point of the screening device, and at least one bottom conveyor belt and at least one transfer conveyor belt assigned to the bottom conveyor belt.

Further, according to the invention, the passage size of the screening device of the first work-up truck located closest to the expansion unit is greater than the passage size of the screening device of a second of the work-up truck arranged downstream of the first work-up truck in the direction of travel of the carriage assembly. As set forth above, the screening device in the first work-up truck is configured to include a first coarse fraction having a predetermined coarsest grain of the ballast of the ballast after being removed and conveyed from the removal unit to the screening device in the first of the work-up truck within the storage volume withhold and let pass a first fine fraction of the ballast gravel the screen device.

The screening device is, as each of the screening devices of the entire device, associated with at least one transfer conveyor belt extending from an outlet side of the screening device, that is from below the screening device for further conveying the first fine fraction in the direction of the second processing work cart. In the second processing work cart, the first fraction is fractionated into a second coarse fraction and a second fraction by the sieve device, which has a passage size which is smaller than the passage size of the sieve device of the first workup trolley, again the second coarse fraction in the storage volume of the second work-up work vehicle can be cached. Thus, with the second coarse fraction bulk material with a slightly smaller grain size is available for reuse.

If a third refurbishment work cart follows the second one, the passage size of the screening device of the third refurbishment work cart is determined analogously to the screening sequence that exists between the second refurbishment work cart and the first; the passage size of the screening device in the third processing work cart is smaller than that of the screening device of the second processing work cart, so that the second fine fraction is fractionated into a third coarse fraction and a third fine fraction each having a correspondingly finer grain size; and so on in further processing work cars.

If the work wagon association thus has more than two work-up work cars, the passage sizes of the screening devices of further work-up work cars become smaller as the distance to the removal unit increases. In this way, smaller coarse grain fractions of the reuse, such as in the improvement of the runway, even if the substructure of the track is processed, and fed to the shortest route to a corresponding installation unit.

Thus, it is achieved that a non-recyclable fine fraction is separated only in a work-up trolley, which is located farthest from the expansion unit. The transport path is thus also advantageous here as short as possible in order to promote this non-recyclable fine fraction in a downstream storage trolley for overburden.

With the work wagon association according to the invention, the coarse grain needed for re-installation as ballast falls to the "front" end of the work group on which in addition to the expansion unit usually also a mounting unit is provided. This means that the transport routes to be covered between dismantling, processing and reinstalling can be kept as short as possible. The storage volume in the processing truck makes it possible to provide sufficient ballast with varying levels of ballast.

In a preferred embodiment, the screening device has at least one screen deck in combination with a cleaning device, so that not only a fractionation, but at the same time a cleaning of the coarse fraction of the removed ballast takes place. In the simplest case, the cleaning device can be formed by a vibration generator, which is coupled to the screen deck. This causes the screen deck to vibrate. Due to the vibrations of the sieve deck, fine and loosely adhering particles from the coarse grain that does not pass through the sieve deck are released by the shaking motion when they hit the sieve deck. The separated particles, rock fragments and organic soil constituents pass through the sieve deck with the smaller grain fractions. Next, the cleaning effect can be supported by an additional, directed to the screen deck feeder for a cleaning medium. This may be water, or even a dry cleaning medium such as compressed air or dry ice. Whichever cleaning medium is preferred may also depend on the nature of the removed ballast. In order to achieve a reduced dust development, water can preferably be used, which is supplied by spray nozzles. Optionally, it is also conceivable that a plurality of supply devices are provided which supply different cleaning media in order to improve the cleaning effect and / or to reduce the formation of dust.

To promote the coarse grain that does not pass through the screen deck, in the direction of the storage volume of the corresponding processing work carriage, ie opposite to the transport direction of the roof conveyor belt, the screen deck is inclined against this AbtragportFörderrichtung the roof conveyor, the inclination of the screen deck to set a desired residence on the Sieve deck is adjustable. Alternatively or additionally, the frequency of the vibrator can be adjustable, with which not only the cleaning effect is achieved, but also the movement of the coarse grain is supported on the inclined screen deck. Inclination and oscillation frequency can thus be adjusted for optimum cleaning and removal of the coarse grain. In addition, the inclination of the screening deck and / or the vibration frequency generated by the vibration generator can be set as a function of at least one operating parameter selected from a group which has the passage size of the screen deck and a speed of the roof conveyor belt and optionally also other operating parameters which also influence on the cleaning effect and residence time of the coarse grain on the screen deck can have.

To increase the variability and flexibility of the work truck association for different purposes and to adapt to different tasks, the screen deck can be releasably secured in the screening device. By "releasably secured" is meant an attachment that allows the screen deck to be released from the screen without that fasteners must be destroyed. This allows for a quick exchange, such as when a screen deck is to be maintained or used with a different passage size, on the other hand, it also allows a simple re-working of Aufarbeitungsarbeitswagens for transporting material, the material from the roof conveyor directly over the sieve associated transfer conveyor belt can be transported. Of course, the removal of a screen deck can be done manually; Preferably, however, the screen deck from its operating position in horizontal, vertical or freely definable direction in a removal position or parking position in or on the refurbishment work car (and in the reverse direction) partially or fully automated transferable. This transfer can be done mechanically, hydraulically, electrically and / or pneumatically.

At least one of the refurbishment work cars of the work wagon association can have further refurbishment devices next to or within the storage volume for the coarse fraction accumulating in the respective refurbishment work cart. These may, for example, be further purification devices.

The work wagon association may further include one or more other work wagons which are not work-up work wagons having a sifting device, but which has at least one roof conveyor belt, a bottom conveyor belt and / or a transfer conveyor belt associated with the bottom conveyor belt. The one or more work cars may be arranged at any location in line with the working direction before, between, or behind the work-up work car.

The transfer belt associated with the screening device may extend to the roof conveyor of the next work-up truck or one of the further work cars. Alternatively, it may terminate above a transfer conveyor belt associated with the bottom conveyor belt of the same or the next work-up work cart or one of the further work cars. However, the transfer conveyor belt assigned to the screening device can also be designed to be displaceable, pivotable, bendable and positionable such that it can alternatively be adjusted to one of the two positions.

In order to further expand the variability and flexibility of the work truck association, all conveyor belts can be reversible with respect to their transport direction, that is, they can be reversed in the operability direction. In addition, the bottom conveyor belt assigned transfer belts on both sides and be retractable and have the roof conveyor belts and the transfer belts at least pivotable transfer ends. In this way, upper material flows can be realized via the roof conveyor belts and the transfer conveyor belts associated with the screening device and lower material flows via the floor conveyor belts and the associated transfer conveyor belts in each case in both directions. Due to the adjustability of the transfer conveyor belts and the transfer ends material flows can also be performed from top to bottom and vice versa.

Furthermore, in one embodiment, the respective roof conveyor belt can be arranged detachably on the work-up work car or on the further work car and / or the pivotable transfer ends of the roof conveyor belt can be exchangeable or adjustable in length, for example by the ability to retract and extend, so that Removed screen deck or is moved into a parking position, the roof conveyor belt replaced or the transfer end can be extended to allow a throughput. Furthermore, corresponding releasable fastening or receiving devices are provided on the work car and the roof conveyor. With suitable mounting or receiving devices, other structures for alternative use can be arranged on the work car instead of a roof conveyor. It is also conceivable that instead of the screening deck in the screening device, an alternative device can also be temporarily arranged.

By enlarging the grain passage in the Siebdeckeinrichtung, for example, by replacing the screen deck, it is also possible to allow the through-feed on a Aufarbeitungswagen, without the workup.

In order to prevent freezing of the bulk material in the work car at frost, the work-up trolley or the other work trolley may have at least one heating device, the heating elements on at least one end, side wall and / or bottom surface of the work-up trolley and / or at least having one of the conveyor belts. In addition, a heating device associated with the screening device can be provided.

The expansion unit can be any expansion unit: track bound ahead or track-bound and coupled with the work-up work car or one of the other work cars; but it can also be a non-track-bound expansion unit act. Preferably, however, the work wagon association has a track-bound expansion work car, which is connected to the work-up work car and possibly the other work car to a work train. Regardless of the type of expansion unit, an additional Materialaufgabe- or material transfer car can be arranged between the expansion unit and the refurbishment and other work cars, which produces a logistical connection between the expansion unit and the first processing work car or one of the other work cars with conveyor belts , Such a material feed or material transfer car may be provided in particular in track bound leading and not track bound expansion units.

More preferably, an expansion unit can be combined with an installation unit and designed as a track-bound combined removal and installation work vehicle. In this case, the expansion unit in addition to an expansion device with respect to the working direction of the work car association subsequent mounting device. If it is not a combined work car, then the expansion unit can cooperate with a subsequent installation unit with respect to the working direction. In this case, the expansion unit or optionally the material loading or transfer trolley has at least one transfer conveyor belt, which extends to the transfer of the developed old ballast to the roof conveyor of the following work car. For the replacement of cleaned ballast, the combined expansion unit having an installation device, or the installation unit corresponding receiving and transport devices for the reprocessed coarse fraction to have to be installed, which can thus be supplied via the ground conveyor belt associated transfer conveyor belt of the first processing work car of the mounting device ,

In addition, it should be noted that in principle instead of a roof conveyor belt or a bottom conveyor belt or other conveyor belt always two parallel running or possibly three parallel conveyor belts of the aforementioned type may be present, then jointly afford the roof or floor or other promotion.

An embodiment of the inventive method for processing the ballast bedding (possibly also one or more Unterbauschicht (s)) of a track of a railway line is carried out using a Arbeitswagenverbands invention, the ballast bed is removed by an expansion unit and the removed ballast in a discharge conveying direction over at least one roof conveyor is conveyed to a screening device, which is arranged at a far end of the expansion unit of a first work-up work car, and fractionated by the screening device, whose passage size is selected according to a desired coarsest grain, into a first fine fraction and a first coarse fraction. The first coarse fraction is buffered by means of at least one bottom conveyor belt opposite to the removal conveying direction in a storage volume of the first processing work car. The first fine fraction is transported via a transfer conveyor belt assigned to the screening device further in the removal conveying direction to a second processing work cart for further fractionation or to a further work cart for storage or onward transport.

When the first fine fraction is fed to a second work-up truck, it passes via its roof conveyor to the screening device of the second work-up truck, which is disposed at an end of the second work-up truck remote from the expansion unit and whose passage size is smaller than the passage size of the screen of the first refurbishment workbench. By this additional screening device, the first fine fraction from the first fractionation into a second fraction and a second fraction fraction fractionated whose grain size is smaller than the grain size of the coarse fraction of the first fractionation, in turn, the second coarse fraction by means of at least one bottom conveyor against the discharge transport direction in a storage volume of the second refurbishment workbench is cached. Thus, the process continues analogously, if followed by further processing work car; Accordingly, further method steps result analogously using the above-described developments of the work car association.

Fig. 1

eine schematische Seitenschnittansicht eines erfindungsgemäßen Arbeitsverbands,

Fig. 2

eine schematische Seitenschnittansicht eines erfindungsgemäßen Arbeitsverbands in einer alternativen Ausführungsform,

Fig. 3

eine schematische Seitenschnittansicht eines erfindungsgemäßen Arbeitsverbands mit Schottermaterialströmen, ohne Ausbaueinheit aber mit Übergabewagen

Flg. 4

eine schematische Seitenschnittansicht eines erfindungsgemäßen Arbeitsverbands in einer alternativen Ausführungsform mit Schottermaterialströmen,

Fig. 5

eine schematische Seitenansicht der Siebeinrichtung mit Materialförderrichtung und Schnittlinie A-A,

Fig. 6

eine schematische Draufsicht der Siebeinrichtung mit Materialförderrichtung und Schnittlinie A-A,

Fig. 7

eine schematische Querschnittansicht durch die Siebeinrichtung gemäß Schnittlinie A-A aus Fig. 5 und 6,

Fig. 8

eine Fig. 7 entsprechende Ansicht mit Schottermaterialströmen,

Fig. 9

eine schematische Seitenansicht der Siebeinrichtung mit Materialförderrichtung,

Fig. 10

eine schematische Draufsicht der Siebeinrichtung mit Materialförderrichtung und Schnittlinie B-B,

Fig. 11

eine schematische Seitenschnittansicht durch die Siebeinrichtung gemäß Schnittlinie B-B aus Fig. 10,

Fig. 12

eine Fig. 11 entsprechende Ansicht mit Schottermaterialströmen,

Fig. 13

eine schematische Detailseitenschnittansicht der Siebeinrichtung mit zugeordnetem Übergabeförderband und Dachförderband,

Fig. 14

eine Fig. 13 entsprechende Ansicht mit Schottermaterialströmen,

Fig. 15

eine schematische Detailseitenschnittansicht der Siebeinrichtung ohne Siebdeck mit zugeordnetem Übergabeförderband und Dachförderband,

Fig. 16

eine Fig. 15 entsprechende Ansicht mit Schottermaterialströmen,

Fig. 17

eine schematische Detailseitenschnittansicht der Siebeinrichtung mit nach vorne unter das Dachförderband verfahrenem Siebdeck,

Fig. 18

eine schematische Detailseitenschnittansicht der Siebeinrichtung mit nach oben verfahrenem Siebdeck,

Fig. 19

eine schematische Detailseitenschnittansicht der Siebeinrichtung mit nach hinten verfahrenem Siebdeck.

Other embodiments of the work-up truck as well as some of the advantages associated with these and other embodiments will become apparent and better understood from the following detailed description with reference to the accompanying drawings; as well the procedure. Items or parts thereof that are substantially the same or similar may be provided with the same reference numerals. The figures are merely schematic representations of one embodiment of the invention. Showing:

Fig. 1

a schematic side sectional view of a work organization according to the invention,

Fig. 2

FIG. 2 a schematic side sectional view of a work band according to the invention in an alternative embodiment, FIG.

Fig. 3

a schematic side sectional view of a work group according to the invention with gravel material streams, without expansion unit but with transfer car

Flg. 4

FIG. 2 is a schematic sectional side view of a work bandage according to the invention in an alternative embodiment with gravel material streams; FIG.

Fig. 5

a schematic side view of the screening device with material conveying direction and section line AA,

Fig. 6

a schematic plan view of the screening device with material conveying direction and section line AA,

Fig. 7

a schematic cross-sectional view through the screening device according to section line AA FIGS. 5 and 6 .

Fig. 8

a Fig. 7 corresponding view with gravel material streams,

Fig. 9

a schematic side view of the screening device with material conveying direction,

Fig. 10

a schematic plan view of the screening device with material conveying direction and section line BB,

Fig. 11

a schematic side sectional view through the screening device according to section line BB Fig. 10 .

Fig. 12

a Fig. 11 corresponding view with gravel material streams,

Fig. 13

a schematic detail side sectional view of the screening device with associated transfer conveyor belt and roof conveyor,

Fig. 14

a Fig. 13 corresponding view with gravel material streams,

Fig. 15

a schematic detail side sectional view of the screening device without screen deck with associated transfer conveyor belt and roof conveyor,

Fig. 16

a Fig. 15 corresponding view with gravel material streams,

Fig. 17

a schematic detail side sectional view of the screening device with moved forward under the roof conveyor belt Siebdeck,

Fig. 18

1 is a schematic detail side sectional view of the screening device with the sieve deck moved upwards;

Fig. 19

a schematic detail side sectional view of the screening device with zurückgeschem sieve deck.

The device according to the invention is a work wagon association for the treatment of the old ballast from a ballast bed of a track of a railway line. Of course, the work truck association according to the invention can be used by minor modifications in an equivalent manner in addition to the workup of a subgrade.

Fig. 1 shows a work wagon association 1, which initially has an expansion unit 10 with an expansion device 20 for ballast 2 with respect to working direction A. Fig. 3 shows in place of an expansion unit at the head of the work truck association 1 a task or transfer trolley 10 ', which has the developed by a removal unit not shown there gravel 2 as the expansion unit 10 in Fig. 1 via a transfer conveyor belt 19 on the roof conveyor belt 15 of the first processing work cart 11 gives up.

In all figures, the black-filled arrows indicate the gravel-Abtransportrichtung the roof conveyor belts 15 against the working direction A. The unfilled arrows b indicate the direction of conveyance of the floor conveyor belts 16 in the working direction A.

The removed ballast 2 is fed via the roof conveyor belt 15 of the first work-up truck 11 arranged at the end of the screening device 13. The passage size of the first screening device 13 is selected such that a first coarse fraction 4 with a desired particle size for the gravel intended for replacement does not pass through the screening device 13 and remains in the first processing work carriage 11. Within the storage volume 14 of the first work-up work cart 11, the first coarse fraction 4 ( Fig. 3 shows the fractions) are stored during conveyance by the bottom conveyor belt 16, before the processed ballast of the coarse fraction 4 via a bottom conveyor belt 16 associated transfer conveyor belt 17 directly to the expansion unit 10 ( FIG. Fig. 1 ) or via the task or transfer trolley 10 ' ( Fig. 3 ) and a (not shown) installation unit is supplied for replacement.

The first fine fraction 3 passes after passage of the screening device 13 of the first processing work carriage 11 on the transfer device 13 associated transfer conveyor 18, the first fine fraction 3 in Abtransportrichtung a either directly to the roof conveyor belt 15 of the next work-up work carriage 11 ( FIG. Fig. 1 ) or indirectly via a transfer conveyor belt 17 assigned to the bottom conveyor belt 16 (which is operated in the removal direction a differently than the bottom conveyor belt 16 of the refurbishment work carriage 11) into a work truck 12 serving as a buffer store and via another transfer trolley 10 'onto the roof conveyor belt 15 of the second refurbishment work cart 11 ( Fig. 3 ) which differs (at least) in terms of the passage size of the screening device 13 from the first processing work carriage 11: the passage size of the screening device 13 of the second processing work cart 11 is set smaller than the passage size of the screening device 13 of the first processing work cart 11, so that here, too, a second coarse fraction 4 'having a desired grain size, which is smaller than that of the first coarse fraction 4, is obtained in the second processing work cart 11. These can also be made available for replacement, for which the conveyor system shown can be used, such as when the various coarse fractions 4,4 '(with appropriate temporary storage) are installed alternately again. If the various coarse fractions 4, 4 'are to be available for replacement at the same time, it is possible, for example, to use parallel conveyor belts or known bypass solutions not shown here.

The second fine fraction 3 'separated off in the second screening device 13 of the second processing work cart 11 is transferred into a following working carriage 12, which serves as a storage carriage, in FIG Fig. 1 on the transfer conveyor belt 18 assigned to the screening device 13 on the roof conveyor belt 15, from where it reaches the inside of the storage work cart 12 at the opposite end and there fills the storage volume 14 in Hintransportrichtung b. In Fig. 3 the second fine fraction 3 'passes through the transfer conveyor belt 18 assigned to the screening device 13 to the transfer belt 17 of the refurbishment work truck 11 associated with the bottom conveyor belt 16, which is operated in the removal direction a, for storage in the storage work cart 12, in which the bottom conveyor belt 16 is operated as in the temporary storage vehicle 12 in Abtransportrichtung a.

According to the invention, the screening devices 13 of the series processing work cart 11 have decreasing passage sizes in relation to the distance to the ballast removal unit 10. Other than shown in the figures, more than two fractionations may be provided, wherein always in the first processing work car after the expansion unit a screening device with the largest passage size is provided. The screening devices on the subsequent work-up truck have successively smaller passage sizes. Thus, the coarse fraction falls on the foremost car, from where it can be reinstalled as a gravel after cleaning, without having to travel long distances along the Arbeitswagenverband.

Fig. 2 and 4 show a work wagon association with an alternative ranking and an alternative operating option. Similar to the one in Fig. 3 In the example shown, the expansion unit 10 is followed by a task or transfer carriage 10 'and a temporary storage work vehicle 12 for buffering different material flow rates, followed by two work-up work cars 11 with screening devices 13, to which a storage work vehicle 12 adjoins. According to the invention, the passage size of the screening device 13 of the second processing work cart 11 is smaller than the passage size of the screening device 13 of the first processing work cart 11, which is arranged closer to the excavating unit 10.

Except the mode of operation as in Fig. 1 and 3 is shown, it is also possible to skip fractionation in Arbeitswagenverband 1, as in the example according to Fig. 4 Although there takes place in the first processing work cart 11 a first fractionation with the screening device 13 in a coarse fraction 4 with a grain size suitable for re-incorporation as gravel, but the second refurbishment work cart 11 is used here only as a conveyor or storage car , In this case, the fine fraction 3 obtained from the fractionation in the first processing work cart 11 is conveyed through the roof conveyor belt 15 to the screen device 13, but not fractionated there, but is conveyed via the transfer conveyor belt 18 assigned to the screen device 13 to the following storage work cart 12. For this purpose, the screen deck 5 of the screening device 13 of the second processing work cart 11 has been removed, as shown in FIG Fig. 13 to 16 is clarified:

Fig. 13 shows the screening device 13 with screen deck 5, so as in Fig. 14 can be seen on the roof conveyor belt 15 transported ballast 2 falls on the screen deck 5, passes through the fine fraction 3 and falls on the associated transfer conveyor belt 18. The coarse fraction 4 passes through the inclination of the screening deck 5 counter to the conveying direction of the roof conveyor belt 15 into the interior of the corresponding work-up work trailer 11. FIGS. 15 and 16 show the throughput situation in the second refurbishment work car 11 of the Fig. 4 , wherein the screen deck 5 has been removed from the screening device 13. As a result, the fine fraction 3 transported via the roof conveyor belt 15 falls directly onto the transfer conveyor belt 18 assigned to the screening device 13 and is transported further.

FIGS. 17 to 19 show different variants for removing the screening deck 5 from the screening device 13 in different directions c. The screen deck 5, which is arranged detachably in the screening device 13, can be transferred from its operating position in the screening device 13 in a horizontal, vertical or freely definable direction into a removal position or parking position in or on the reconditioning work cart 11 and also moved back again. This transfer can be partially or fully automated mechanically, hydraulically, electrically and / or pneumatically. The screen deck 5 can, as in Fig. 17 indicated to be moved into a parking position below the roof conveyor belt 15. It is also conceivable to raise the screening deck 5 via the roof conveyor belt 15, as in FIG Fig. 18 indicated, or a lifting or process on a side facing away from the roof conveyor belt 15 side of the feed point of the roof conveyor belt 5 in the screening device 13, as in Fig. 19 ,

FIGS. 5 to 12 show the screening device 13 and material flows to and through the screening device 13 Fig. 5 to see in the schematic side view the screening device 13 with material conveying direction and section line AA, Fig. 6 shows the top view through the sieve 13 and Fig. 7 the too FIGS. 5 and 6 Corresponding cross-sectional view according to section line AA from the sieve device 13 with perforation, as sketched. The gravel material streams of the screening device 13 are in Fig. 8 illustrates: The ballast bed 2 is sieved and it remains a coarse fraction 4 of the ballast above the sieve plate and a fine fraction 3 passes through and reaches the bottom conveyor belt 18th

A side view of the sieve device 13 with material conveying direction a ( Fig. 9 ) and a schematic plan view of the screening device 13 with material conveying direction a and section line BB ( FIG. FIG. 10 ) supplement the in Fig. 11 shown side sectional view through the sieve device 13 according to section line BB:

About the roof conveyor belt, not shown here, the material to be fractionated 2 according to Abtransportrichtungspfeil a the screening device 13 is supplied. The opposite of this direction a inclined screen deck 5 can be according to the selected passage size pass a fine fraction 3, which falls from the associated transfer conveyor belt 18 for further transport to the next car. The fine fraction 3 can be subjected there to a further screening. The coarse fraction 4 retained by the screening deck 5, contrary to the removal direction a, follows the inclination of the screening deck 5 into the corresponding processing work cart. To assist this movement and achieve a cleaning effect, the screen deck 5 is provided with a vibration generator 6 (see FIG Fig. 11 ), such as an imbalance shaft coupled. The vibrator 6 vibrates the screen deck 5, so that a cleaning effect is achieved by this shaking, since fine and loosely adhering rock parts and organic soil constituents are shaken loose from the coarser grains and thus separated. This is a very important factor especially in organic soils and moist soil. Thus, not only the smaller rock fraction of the ballast bedding but also the fine and loose parts fall on the associated transfer conveyor belt 18 in the screening.

Advantageously, the invention thus provides that the screening unit also acts as a cleaning unit: In the screening not only the fractionation takes place but at the same time a purification of the substances to be fractionated. In this way, the refurbishment work cart, which is in principle a material trolley, can be used as a fractionation trolley with cleaning action. This reprocessing work cart, in addition to the apparatus for fractionation and cleaning and the conveyor belts, which also allow a pure transport in both directions, with the provided storage volume 14 also has a storage function.

To enhance the cleaning effect, which is achieved by the vibrations of the screen deck 5, above the screen deck 5, as in Fig . 11 is indicated, a supply device 6 'may be provided for a cleaning medium, with which the material is acted upon. The cleaning medium may simply be compressed air, but it may also be dry ice or water, which are preferably also supplied under pressure. The cleaning medium can be supplied from the top of the screen deck, but it can also be provided an inclined or inclined with respect to the vertical supply, so that the cleaning medium at right angles or at a more acute angle α impinges on the screen deck 5 to meet the coarse grain 4 quasi counter-current. If the screen deck 5 is removed, the cleaning devices are inactive.

Another embodiment, not shown in the figures, provides that the work-up work car and possibly also the other work car have at least one heating device. This is preferably formed modularly from heating elements which are detachably arranged on at least one end, side wall and / or bottom surface of the work-up trolley and / or on at least one of the conveyor belts, so that they must be used only when needed in the cold season. To the heater is on the EP 2993102 A1 the applicant, the content of which is hereby incorporated by reference in its entirety.

By ranking the refurbishment work trolleys with screening devices with decreasing passage size, the materials to be rebuilt in working direction A of the wagon body 1 are made available as soon as possible to the installation point at the head of the work trolley association. Thus, the material directly to an installation unit, which can form a combined unit with the expansion unit, are made available for installation again without having to make a change in the logistical sequence of the car. Since the screen deck can be removed if necessary, so that a through conveyance without screening and cleaning on the roof conveyor belts is possible, the refurbishment work cars can thus be used as pure Materialförder- possibly also storage vehicles. The versatility of the application is complemented by the reversibility of all conveyor belts, as well as the adjustability of the transfer conveyor belts and the transfer ends, so that if no fractionation takes place, material flows can be realized in any direction. If the work-up truck is used for fractionation, cleaning takes place simultaneously and the cleaned and fractionated grain can be stored and / or transported in the same material trolley in which the fractionation and cleaning performance is also carried out. Thus, it is possible, directly on a first work-up truck of a wagon association, the cleaned material with freely definable size or desired size in the same car, in which the cleaning takes place, a removal and installation unit at the head of Arbeitswagenverbandes (Arbeitszug) in the working direction again to provide.

LIST OF REFERENCE NUMBERS

1

Trolley Association

2

Ballast bedding, old gravel

3,3 '

fine fraction

4,4 '

coarse fraction

5

Screendeck

6.6 '

cleaning equipment

10

expansion unit

10 '

Task or transfer car

11

Reconditioning working car

12

trolley

13

screening

14

storage volume

15

Roof conveyor belt

16

Floor conveyor

17

the transfer conveyor belt associated with the ground conveyor

18

the screening device associated transfer conveyor

19

Transfer conveyor belt of the removal unit

20

expansion device

A

working direction

a

removal direction

b

Hintransportrichtung

c

Distance movement

Claims (15)

Arbeitswagenverband (1) for processing the ballast bed (2) of a track of a railway line, wherein the Arbeitswagenverband (1) at least one expansion unit (10) for removing the ballast bed (2), and in the working direction (A) of the car body (1) below at least one first processing work cart (11), the - a screening device (13) on a to the expansion unit (10) far end of the work-up work carriage (11),
and at least in each case a roof conveyor belt (15) which extends to a feed point of the screening device (13), a bottom conveyor belt (16) extending along the work-up truck (11) and a transfer conveyor belt (17) associated with the bottom conveyor belt (16), characterized in that
a passage size of the screening device (13) of the first work-up truck (11) is formed, a first coarse fraction (4) having a predetermined coarsest grain of the ballast of the ballast bed (2) after being removed and conveyed by the removal unit (10) via the Roof conveyor (15) to catch the screening device (13) in the first work-up trolley (11),
having a storage volume (14) for the coarse fraction (4), and
wherein the screening device (13) is associated with at least one transfer belt (18) extending from an outlet side of the screening device (13) for further conveying a first fine fraction (3) of the ballast of the excavated ballast bed (2) passing through the screening device (13); extends in the direction of a work carriage (1) following the working carriage (1), which is a second processing work cart (11) or another work cart (12). Work truck association (1) according to claim 1,
characterized in that
the work wagon association (1) the first processing work cart (11) and in the working direction (A) of the wagon body (1) below at least the second Processing work cart (11), wherein the second and each further processing work cart (11) a screening device (13) at an end of the work-up truck (11) remote from the removal unit (10) and a storage volume (14),
and in each case at least a roof conveyor belt (15) which extends to a feed point of the screening device (13), - A bottom conveyor belt (16) and - Has a bottom conveyor belt (16) associated transfer conveyor belt (17), wherein the passage size of the screening device (13) of the first work-up work carriage (11), which is located closest to the expansion unit (10), is greater than the passage size of the screening device (13) of the second refurbishment work cart (11) arranged downstream of the first refurbishment work cart (11) in the working direction (A) of the carriage assembly (1), the first fine fraction (3) being conveyed to the second refining conveyor belt (18) Work-up trolley (11) and via the roof conveyor belt (15) of the screening device (13) of the second work-up work carriage (11) can be fed through the sieve device (13) with the passage size which is smaller than the passage size of the screening device (13) of the first work-up work cart (11), the first fine fraction (3) can be fractionated into a second coarse fraction (4 ') and a second fine fraction (3'). Work truck association (1) according to claim 1 or 2,
characterized in that
the passage size of the screening devices (13) of further processing work cars (11) becomes smaller with increasing distance to the removal unit (10). Work carriage association (1) according to at least one of claims 1 to 3,
characterized in that
the screening device (13) has at least one screening deck (5) and a cleaning device, wherein the cleaning device is provided by a vibration generator (6) which is coupled to the at least one screening deck (5) and preferably at least one to the screening deck (5). aligned supply device (6 ') for a cleaning medium. Work truck association (1) according to claim 4,
characterized in that
the at least one screening deck (5) is inclined counter to a removal conveying direction (a) of the roof conveyor belt (15), wherein the inclination of the at least one screen deck (5) and / or a frequency of the vibration generator (6) is / are adjustable, preferably in Dependence of at least one operating parameter selected from a group having at least the passage size of the screen deck (5) and a speed of the roof conveyor belt (15). Work truck association (1) according to claim 4 or 5,
characterized in that
the screen deck (5) is releasably secured in the screening device (13) and can be transferred from its operating position in a horizontal, vertical or freely definable direction into a removal position or parking position in or on the work-up work carriage (11),
wherein preferably the transfer of the screen deck (5) partially or fully automated mechanically, hydraulically, electrically, pneumatically. Work truck association (1) according to at least one of claims 1 to 6,
characterized in that
at least one of the refurbishment work car (11) further processing facilities for in the respective refurbishment work cart (11) resulting coarse fraction (4,4 ') has. Work truck association (1) according to at least one of claims 1 to 7,
characterized in that
the further work trolley (12) and / or further work trolleys (12) of the work trolley association (1) is / are not a work trolley (11) and at least one roof conveyor belt (15), a bottom conveyor belt (16) and / or a bottom conveyor belt (12) 16) associated transfer conveyor belt (17), wherein the at least one further work car (12) at any Reihungsort with respect to the working direction (A) before, between or behind the refurbishment work car (11) is arranged. Work truck association (1) according to claim 8,
characterized in that
the transfer conveyor (18) associated with the screening device (13) extending to the roof conveyor (15) of the next work-up truck (11) or the other work-car (12), or - Above one of the bottom conveyor belt (16) associated transfer conveyor belt (17) of the same or the next work-up work car (11) or other work car (12) ends, or - Is an adjustable in both positions transfer conveyor belt (18). Work wagon association (1) according to at least one of claims 1 to 9,
characterized in that
all conveyor belts (15, 16, 17, 18) are reversible with respect to their transport direction, and / or
the transfer conveyor belts (17) assigned to the floor conveyor belt (16) can be moved in and out on both sides, and / or
the roof conveyor belts (15) and the transfer conveyor belts (17,18) have pivotable transfer ends. Work truck association (1) according to claim 10,
characterized in that
the roof conveyor belt (15) is detachably arranged on the refurbishment work cart (11) or on the further work cart (12), and / or the pivotable transfer ends of the roof conveyor belt (15) are exchangeable or adjustable in their length. Work truck association (1) according to at least one of claims 1 to 11,
characterized in that
the refurbishment work cart (11) has at least one heating device, the heating elements on at least one end, side wall and / or bottom surface of the refurbishment work cart (11) and / or on at least one of the conveyor belts (15,16,17,18) having. Work truck association (1) according to at least one of claims 8 to 12,
characterized in that
the expansion unit (10) coupled to a track-bound vorlaulende or the work-up working car (11) or the further trolley (12) or a non-track-bound expansion unit, and / or that between the expansion unit (10) and the refurbishment work cart (11) or the further work car (12) an additional material loading or transfer car (10 ') is arranged, and / or
the expansion unit (10) next to an expansion device (20) has a respect to the working direction (A) subsequent mounting device or with a respect to the working direction (A) following installation unit cooperates,
wherein the expansion unit (10) and optionally the Malerialauf- or - transfer car (10 ') has at least one transfer conveyor belt (19), which is for transferring the removed old ballast (2) to the roof conveyor belt (15) of the following work-up work car (11 ) or another work car (12), and
wherein the removal unit (10) having an installation device, or the installation unit receiving and transporting devices for the reprocessed coarse fraction to be installed) (4) via the said conveyor belt (16) associated transfer conveyor belt (17) of the first processing work car (16) 11) is supplied. A method for working up the ballast bed (2) of a track of a railway line using a work truck association (1) according to at least one of claims 1 to 13, wherein - the ballast bed (2) is removed by an expansion unit (10), - The developed ballast (2) in a discharge conveying direction (a) via at least one roof conveyor belt (15) to a screening device (13) arranged on a to the expansion unit (10) far end of a first work-up work car (11) is, promoted and fractionated by the screening device (13) whose passage sizes are selected according to a predetermined coarsest grain size, into a first fine fraction (3) and a first coarse fraction (4), the first coarse fraction (4) is buffered by means of at least one bottom conveyor belt (16) counter to the removal conveying direction (a) in a storage volume (14) of the first work-up work carriage (11), - The first fine fraction (3) via a sieve device (13) associated transfer conveyor belt (18) is further transported in the transport direction (a) to a second work-up work car (11) or to another work car (12). Method according to claim 14,
wherein the first fine fraction (3) is fed, via the roof conveyor belt (15) of the second work-up truck (11), to the screening device (13) of the second work-up truck (11) located at one end of the second removal station (10) Processing Work Cart (11) is arranged and whose passage size is smaller than the passage size of the sieve device (13) of the first workup work carriage, and by the sieve device (13) into a second fine fraction (3 ') and a second coarse fraction (4') the second coarse fraction (4) by means of at least one bottom conveyor belt (16) counter to the removal conveying direction (a) in a storage volume (14) of the second reprocessing Workbench (11) is cached.

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