EP2500470B1 - Head maintenance vehicle - Google Patents

Description

The invention relates to a head work cart, which is intended and suitable for an arrangement on the head of a work train consisting of several work cars for the creation and / or rehabilitation of a railway line consisting of a substructure and of tracks. Furthermore, the invention relates to a work train with such a head work cart and thus feasible method for loading and unloading.

In the area of railway track construction, there are a variety of working methods. Many of these working methods use so-called material handling silo cars. These work cars have the purpose to store the material to deliver it targeted and record. Thus, these Materialfördersilowagen allow the work on a construction site in front of head in the track area.

The known work car in the form of Materialfördersilowagen own floor conveyor belts and transfer conveyors, with the help of the building materials, mainly gravel and crushed stone and excavated materials are transported from work car to work car. The work cars thereby form a work train, wherein the materials can be loaded on the first work car while the materials can be unloaded from the last work car. For loading in construction sites there are so-called loading units in the form of loading wagons. These are usually a separate cart with conveyor belts. These are designed such that the materials are fed onto a conveyor belt, so that the material is then fed from there to a first material handling silo car. From here, the materials are then transferred from trolley to trolley with the bottom conveyor belts and the transfer conveyors.

In the case of unloading the materials in the construction site area, these are transferred in the same working direction to the transfer conveyor of the last car. From there, the material then passes to the head of the work train in the vacant lot.

All currently known systems have the disadvantage that the loading of the materials in front of the head and the discharge of the materials in front of the head can not be performed at a given head end. So far, the loading and unloading are only two different car groups for installation and removal separately or alternatively possible by turning the car.

Out EP 2 090 490 A2 a work train with work car is known, the bottom conveyor belts, transfer belts and possibly roof conveyors and an auxiliary conveyor for bypassing the floor or roof conveyor belts have. A first work car, which is arranged behind a ballast cleaning machine at the head of the train, has either a loading conveyor belt, which is arranged linearly displaceable in the frontal head region of the roof area of the Kopfarbeitswagens, or an extended roof conveyor on which the ballast cleaning machine gives up the developed ballast.

The invention is therefore an object of the invention to provide a work car, by means of which a discharge and loading of the work car of the work train is simplified.

As a technical solution with the invention, a head work cart, which is intended and suitable for an arrangement on the head of a work trolley consisting of several work cars for the creation and / or rehabilitation of a substructure and tracks existing railway line, according to claim 1 and a corresponding work train proposed according to claim 10.

A method for loading and unloading is made possible by the method according to claim 19.

With the work cart according to the invention in the form of a so-called Kopfarbeitswagens as a separate car unit, which is intended and suitable for work on the head of the work train, is alternatively or simultaneously both a discharge and loading of the work car in the form of so-called Materialfördersilowagen a work train with one or more materials without the use of separate loading and unloading wagons at a job within a track area possible, without rotation of the car and without the use of two groups of wagons. It is possible to vary the material flows as required by means of the invention Kopfarbeitswagens. This means that a reversible, flexible supply and removal of various materials at the construction site is possible. The basic idea of the head wagon according to the invention provides that this headwork wagon by means of a special loading conveyor belt can carry out a loading of material removed, but that with one and the same headwork wagon a discharge with newly einzubauendem material is possible, and, if necessary, also via the special loading conveyor belt and alternatively or simultaneously if necessary via the bottom conveyor belt.

The headwork cart according to the invention is characterized in a special way by the fact that it can be a material handling silo carriage that has been expanded by means of the loading conveyor belt. In this case, it is only necessary to extend this conventional material handling car by a special loading conveyor. Thus, the material handling car is extended by a reversible loading and unloading. All other components of the conventional material handling car can be taken over identically. The loading conveyor belt is arranged in the roof area of the Kopfarbeitswagens. This has the advantage that either on the one hand, the removed material can be given to the container of the work car from the top or, alternatively, the removed material can be transported to the rear via roof conveyor belts. In addition, the loading conveyor is adjustable, d. H. linearly displaceable and / or pivotable, arranged on the headwork cart. As a result, an exact positioning of the task area of the loading conveyor belt with respect to the construction site is possible. To simplify the task of dismantled from the track area material on the loading conveyor, the loading conveyor has a hopper.

In accordance with the invention, the headwork car here at its front head end on both a transfer belt (as it is already present in the material trolley) and the additional loading conveyor on. Here, the transfer belt can be designed as a rigid band or as a bendable band. In principle, it is conceivable that the transfer belt is arranged in a fixed position on the overhead work cart. Preferably, however, not only the loading conveyor belt but also the transfer belt are adjustable. By a dependent adjustment of the two bands to each other, in particular by a dependent adjustment of the transfer belt and simultaneous change in position of the additional loading conveyor belt, the function of the Kopfarbeitswagens can be switched from loading to unloading (and vice versa). In this case, the loading and the unloading conveyor belt can be coupled to use the movement of the transfer belt when kinking for the displacement and movement of the loading conveyor belt.

In addition, the bottom conveyor belt of the Kopfarbeitswagens is adjustable in different variations. Thus, by the longitudinal displaceability of the bottom conveyor belt of the Kopfarbeitswagens, for example, a gravel unloading targeted and metered gravel be embedded in the track. Thus, the inventive head cart optionally also be used as a gravel unloading vehicle. In this case, ballast can be introduced into the track via the ballast unloading device both via the roof conveyor belts (bypass belts) and via the floor conveyor belts. The retractability of the bottom conveyor belt can also be used to provide a transport position. In addition, different unloading the ground conveyor belt can be realized. The optional buckling capacity of the bottom conveyor for height adjustment serves to better adjust the unloading point.

However, the overhead work cart according to the invention can also be a specially designed overhead work cart, which can fulfill the above-described transport work.

Thus, a total loading and unloading at the front head end of a work train without rotation of the car and without the use of two or more car groups is possible. To control the flow of material as an optimization of this flow of material and to avoid accumulation of material on the conveyor belts reversibility of the individual reversible conveyor belts of the loading and unloading is possible. In this case, one or more conveyor belts can be provided in each case.

For the control of the Kopfarbeitswagens and the downstream work car of the work train, a central control for switching all combinable dependencies of the possible functions can be carried out from a central location. This can be done fully automatically. It is also possible to monitor the loading and unloading states of the individual functions for the partially automated or fully automated control of the carriages from a central location. Again, a fully automatic operation is conceivable. The control of all operations is preferably carried out via a freely programmable control electronics with simultaneous monitoring and control of all loading and unloading and transport conditions of the bands and the car.

Thus, a multiple control of the car for central control at the loading or unloading is provided in functional connection with the headwork car according to the invention. The conveyor belts are designed as reversible conveyor belts. The tape control takes place with regard to the dependent direction and speed via a control unit. The circuit of all combinable dependencies of the functional units of the entire system is carried out from a central location or fully automatic. This applies equally to the monitoring of the loading and unloading states of the individual functions For semi-automated or fully automated control of the car from this central location or fully automatic. The control of all processes via a freely programmable control electronics with simultaneous monitoring and control of all loading and unloading conditions and transport conditions of the conveyor belts and the car. Optionally, a multiple control of all individual cars of a train may be provided depending on handover and / or loading and / or unloading individual wagons or intermediate cars.

According to a further development, it is proposed that the overhead work cart has one or more roof conveyor belts in the roof area. These are preferably reversible. These roof conveyors can either serve the transport of material to the site, but also as removal for the discontinued by the loading conveyor developed material. Preferably, the roof conveyor belt is pivotable in the rear region about a horizontal axis. This has the advantage that it can be achieved in a simple manner, a corresponding positioning on the one hand, the roof conveyor belts of the Kopfarbeitswagens and on the other hand, the roof bands of Materialfördersilowagen, according to the desired conveying direction. Furthermore, the roof conveyor belt of the Kopfarbeitswagens be assigned in the rear region of this head wagon a pull-out conveyor. By this Ausziehförderband, which is arranged slidably, a commercially available material trolley can be equipped with material from its second end, namely the end without transfer belt. This pull-out conveyor belt thus additionally enables the function of the previous conventional loading station as an option of the head-work carriage according to the invention. A loading is thus always possible from both sides of a conventional material trolley and at the same time in the headwork trolley according to the invention with reversible bypass solution. This is done independently of the erection direction of the material conveyor silo cars.

In a further development of the headwork cart at both ends of the car each have a transfer conveyor belt. It can be activated to unload the transfer conveyor at the head end and the transfer conveyor at the other end are disabled. For loading via the loading conveyor belt, the transfer conveyor at the head end can be deactivated and the transfer conveyor at the other end activated.

Furthermore, it can be provided that the overhead working carriage has a ballast unloading device. This gravel unloading device is assigned to the bottom conveyor belt of the overhead working carriage and is intended to transport the ballast fed via the bottom conveyor belt via this conveyor belt Install the ballast unloader. Thus, gravel can be deliberately and metered into the track via the gravel unloading device. This also means that the overhead work cart according to the invention can also be optionally used as a gravel unloading vehicle. In this case, ballast can be introduced into the track via the ballast unloading device both via the roof conveyor belts (bypass belts) and via the floor belts. The ballast unloading device can be controlled via an operating station of the trolley or else via a central control unit.

In addition, the loading conveyor belt can be telescopic. This has the advantage that the loading conveyor belt can be optimally positioned with its task position for the material to be loaded at the desired location.

According to a further development, it is proposed that the bottom conveyor belt can be pivotable about a vertical axis and / or about a horizontal axis.

The bottom conveyor belt of the head wagon can be assigned in a further embodiment, an intermediate conveyor belt. This intermediate conveyor belt, which can optionally be reversible, can be arranged in the middle region of the head work cart. This intermediate conveyor belt serves to receive the material which is fed from the first material conveying silo car behind it, in order to then abandon the material to the actual bottom conveyor belt via this intermediate conveyor belt.

For improved material feeding, a feed hopper can also be provided, which is assigned to the bottom conveyor belt of the overhead working carriage and / or the associated intermediate conveyor belt.

Further, one or more, parallel to each other loading conveyor belts and roof conveyor belts may be provided. As a result, the loading and unloading of several building materials is possible.

A first embodiment of a work train according to the invention for creating and / or rehabilitating a railway line consisting of a substructure and of tracks comprises a plurality of work cars and, at a head end, a head work trolley according to the invention.

In a first variant with regard to the overall system of the work train, it is assumed that both the overhead work trolley and the work trolleys located behind it the work train at both ends of the car each have a transfer conveyor belt. When Kopfarbeitswagen the front transfer conveyor belt is designed as a discharge belt for discharged from the work train materials. For unloading the transfer conveyors are activated at the end of the carriage directed to the head end of the work train, and the transfer conveyor belts at the other end are deactivated. For loading via the loading conveyor belt, the transfer conveyor belts can be deactivated at the end of the carriage directed towards the head end of the work train and the transfer conveyor belts can be activated at the other end. The transfer conveyor belts are preferably horizontally movable and additionally pivotable upwards and downwards. In this way, the transfer belts can be positioned in a technically simple manner. Because the basic principle of this variant consists in the reversible operation of the floor conveyor belts and transfer conveyors of the work car and the Kopfarbeitswagens. The basic principle of unloading is that by means of the bottom conveyor belts and the transfer conveyors, the material is transported to the head end, from where the headwork trolley throws off the material via the front transfer belt. For loading, the removed material is given to the loading conveyor. This then throws the material in the headwork car. The bottom conveyor belts as well as the transfer conveyor belts are located here in the reverse transport direction. Accordingly, the transfer conveyors are positioned. Thus, a loading and unloading can be performed in this way, without having to use a separate loading trolley or a separate protection car. A further advantage of this variant is that the materials to be loaded as well as the materials to be unloaded can be transported in the desired direction without the use of additional bypass belts alone via the bottom belts and, if appropriately adjusted, the transfer belts. So the material can be transported via the floor conveyor belts in one direction and transported in the other direction. A rotation of the car or the use of two car groups is not required. Optionally, bypass tapes can of course also be used in this variant. Likewise, the number of loading and bypass belts is freely selectable.

Another variant provides that for the transport of the new materials to be incorporated, the bottom bands - and in the intermediate area between two adjacent cars - the transfer conveyor belts are used. These are only in one direction in operation here. For the removal of the removed materials, however, the roof conveyors are used both in the headwork trolley and in the work car behind the work train. These additional bypass belts in the form of roof conveyor belts can be rigid or reversible. An advantage of using additional bypass straps This is because material can be transported from other cars or to other cars.

In a further variant of the work train can be provided that the supply of new material to be incorporated as well as the removal of the old material to be removed takes place via reversibly operable roof conveyor belts. If only a single roof conveyor belt is provided, the supply and removal of the material does not take place at the same time. Only in the event that two or more mutually parallel roof conveyors are provided both in the headwork trolley and in the material handling silo cars, a simultaneous in-transport and removal of materials is possible. This makes it possible to bring several materials in the vacant space in front of the head. Of course, it is also conceivable in this context that material is additionally supplied or removed via the bottom conveyor belt. Overall, it can thus be loaded or unloaded in a wide variety of variants. This means - as stated - that can be supplied via a roof conveyor belt of the gap material to dissipate simultaneously via a parallel roof conveyor material from the gap. Thus, all material flows are reversible on the roof conveyor belts (bypass belts) of the invention Kopfarbeitswagens in combination with reversible roof conveyor belts (bypass belts) of Materialfördersilowagen possible. It is thus possible to transport and remove different materials in different directions as needed from and to a job.

Furthermore, the supply of the material to be incorporated can also be done via the bottom conveyor belts of both the work car and the head wagon invention.

Another development proposes that the transfer conveyor belt of the work car is designed so that it rests on the headwork carriage according to the invention during a transfer travel of the work train. Due to the possibility of resting the transfer conveyor belt of a first Materialfördersilowagens on the headwork carriage according to the invention eliminates a separate shelter for transfer trips.

A further development proposes a rolling system for transporting away and transporting the materials. The basic idea is that the new material to be installed is transported successively to the front head end so that more and more work cars are successively released at the rear end. This freed up space in the work car is filled by the introduction of the removed, old material. This old material is abandoned at the back end of the local work car. After the task becomes This old material - also - transported successively towards the front of the head. Through this rolling system, it is possible to remove both expanded material in one direction and feed new material with the same car. This can be realized at the front head end by the loading and unloading possibility according to the invention. Thus, the material can be loaded and unloaded with the same head cart at the top of the work train. This rolling system allows continuous operation without interruption of time. For example, during unloading of a portion of the wagons, the remainder of the wagons may be used as circulation wagons for removal of the excavation and re-entry of new materials.

In this case, the last work car of this rolling system may have a shortened roof conveyor. This makes it possible that the removed, removed material can be given to the container of the last car in a simple manner. The roof conveyor of this last work car can be specially designed. However, it is also conceivable that the roof conveyor belt is formed so kinkable that it has its discharge end in the area of the container of this work cart in terms of this development.

Yet another development of the work train provides that the work car has a loading hopper. This preferably attachable or firmly screwed loading hopper (or loading trough) is used to load the last material conveyor silo truck at the interim storage. Overall, the loading hopper / loading trough the rapid loading of the car series at the interim storage. Preferably, the dimension of the loading hopper / loading trough is so wide that the bucket contents of a wheel loader can be completely unloaded in this hopper. The advantage of the loading hopper is that the space above the rear edge of the car can be used. This means that the loading hopper can protrude beyond the cart container, so as not to reduce the loading volume of the car by otherwise required shortening of the roof conveyor belt.

• zum Beladen des Arbeitszuges:
  • in die Ladestellung Verfahren des Ladeförderbands des Kopfarbeitswagens,
  • dem Ladeförderband über den Aufgabetrichter Aufgeben von ausgebautem Material und
  • über das Übergabeförderband dem benachbarten Arbeitswagen Aufgeben des ausgebauten Materials;
• zum Entladen des Arbeitszuges:
  • dem Kopfarbeitswagen Aufgaben von einzubauendem Material von dem benachbarten Arbeitswagen und
  • über das Bodenförderband oder das Ladeförderband des Kopfarbeitswagens Entladen des einzubauenden Materials.

An inventive method is provided for loading and unloading a work train, which consists of several work cars, the work cars of the work train each have a bottom conveyor and at least at one end a transfer conveyor for transferring material from a work car to the next work car, and at the head end Headwork Cart according to the invention comprising a bottom conveyor for loading and / or unloading of materials and a loading conveyor for loading and / or unloading of materials, which is designed for the exact positioning of the feed area of the loading conveyor belt with respect to the construction site. Further For example, the headwork cart has a transfer conveyor belt at one end in the frontal head area, which is assigned to the bottom conveyor belt and which is suitable for loading and unloading material in the head area. In this case, on the one hand, the bottom conveyor belt, the associated transfer conveyor belt and the loading conveyor of the Kopfarbeitswagens and on the other hand, the bottom conveyor belts and the transfer belts of the work car alternatively either positionable with respect to their relative arrangement to each other and adjustable in terms of their conveyor so that alternatively or simultaneously the work train with his work car over the headwork trolley is loaded with material removed and / or the work train can unload new material loaded into the work trolley via the overhead work trolley. For this purpose, the following steps are to be carried out alternatively or simultaneously:

• for loading the work train:
  • in the loading position procedure of the loading conveyor of the Kopfarbeitswagens,
  • the loading conveyor via the feeding hopper giving up the material removed and
  • via the transfer conveyor the adjacent work car abandonment of the removed material;
• for unloading the work train:
  • the Kopfarbeitswagen tasks of einzubauendem material from the adjacent work car and
  • via the bottom conveyor belt or the loading conveyor belt of the overhead working cart unloading of the material to be installed.

In a further development of the method for which the overhead working carriage has a ballast unloading device, the method for unloading the work train comprises feeding the material to be installed via the bottom conveyor belt into the ballast unloading device and via the ballast unloading device, taking the material to be incorporated into the track.

Fig. 1a

eine erste Variante des Kopfarbeitswagens sowie der dahinter befindlichen Arbeitswagen eines Arbeitszuges in der Ruhestellung;

Fig. 1b

der Arbeitszug in Fig. 1a, jedoch in einer Stellung der Förderbänder in der Abtransportstellung von ausgehobenem Material;

Fig. 1c

der Arbeitszug in Fig. 1a, jedoch in einer Stellung der Förderbänder in der Zuführstellung von neuem Material;

Fig. 2a und 2b

Stirnansichten des Kopfarbeitswagens der Fig. 1a in zwei Varianten;

Fig. 3a

eine zweite Variante des Kopfarbeitswagens in der Entladeposition;

Fig. 3b ,

der Kopfarbeitswagen in fig. 3a in der Beladeposition;

Fig. 4a und 4b

Stirnansichten des Kopfarbeitswagens der Fig. 1a in zwei Varianten;

Fig. 5a und 5b bis Fig. 8a und 8b

verschiedene weitere, nicht erfindungsgemäße Varianten des Kopfarbeitswagens;

Fig. 9a und 9b

eine Draufsicht auf den nicht erfindungsgemäßen Kopfarbeitswagen mit der Verschwenkbarkeit des Bodenförderbandes;

Fig. 10a und 10b bis Fig. 18a und 18b

verschiedene Darstellungen der Materialströme;

Fig. 19 und 20

verschiedene schematische Darstellungen über die Materialströme;

Fig. 21

eine Darstellung des rollierenden Systems in einer ersten Ausführungsform;

Fig. 22

eine Darstellung des rollierenden Systems in einer zweiten, nicht erfindungsgemäßen Ausführungsform;

Fig. 23 sowie Fig. 24a und 24b

eine Darstellung des rollierenden Systems in einer dritten, nicht erfindungsgemäßen Ausführungsform;

Fig. 25 sowie Fig. 26a und 26b

eine Darstellung des rollierenden Systems in einer vierten Ausführungsform.

Embodiments of a head-work carriage according to the invention are described below with reference to the drawings. In these shows:

Fig. 1a

a first variant of the Kopfarbeitswagens and behind it located work car a work train in the rest position;

Fig. 1b

the work train in Fig. 1a , but in a position of the conveyor belts in the removal position of excavated material;

Fig. 1c

the work train in Fig. 1a but in a position of the conveyor belts in the feeding position of new material;

Fig. 2a and 2b

Front views of the head wagon Fig. 1a in two variants;

Fig. 3a

a second variant of the Kopfarbeitswagens in the unloading position;

Fig. 3b,

the headwork cart in fig. 3a in the loading position;

Fig. 4a and 4b

Front views of the head wagon Fig. 1a in two variants;

FIGS. 5a and 5b to FIGS. 8a and 8b

various other not inventive variants of the Kopfarbeitswagens;

Fig. 9a and 9b

a plan view of the non-inventive head cart with the pivotability of the bottom conveyor belt;

10a and 10b to Fig. 18a and 18b

different representations of the material flows;

FIGS. 19 and 20

various schematic representations about the material flows;

Fig. 21

a representation of the rolling system in a first embodiment;

Fig. 22

a representation of the rolling system in a second, non-inventive embodiment;

Fig. 23 and Fig. 24a and 24b

a representation of the rolling system in a third, non-inventive embodiment;

Fig. 25 as well Figs. 26a and 26b

a representation of the rolling system in a fourth embodiment.

Fig. 1a shows a first variant of the work train or the Kopfarbeitswagens 1 of this work train, followed by more work cars 2.

The headwork cart 1 with its container has a bottom conveyor belt 3 in the bottom area. Furthermore, a transfer conveyor belt 4 is provided at both ends of this bottom conveyor belt 1. This transfer conveyor 4 is horizontally movable by means of a carriage. At the front end of this carriage, the transfer conveyor belt 4 is pivotable upwards and downwards. In the rest position of this front end of the transfer conveyor belt 4 is pivoted downwards into the horizontal and the carriage retracted (in Fig. 1a Left). In the working position, however, the carriage is extended and the transfer conveyor belt 4 is pivoted upward (in Fig. 1a right). Finally, the headwork cart 1 in the head area on a loading conveyor 5 with hopper 7. This is located in Fig. 1 at rest.

Behind the headwork cart 1 a work car 2 is shown. This is followed in particular by further work cars 2 of corresponding design. This work car 2 has - as the head work cart 1 - a bottom conveyor belt 3, and a transfer conveyor belt 4 at the two ends. From the basic principle, the headwork cart 1 differs from the work cart 2 in that the headwork cart 1 additionally has a loading conveyor belt 5.

The operation is as follows:
Fig. 1b shows the loading of the work train with material removed for this purpose, the loading conveyor 5 is transferred to the loading position. In this position, the removed material is the loading conveyor belt 5 abandoned. It throws after passing through the loading conveyor belt 5, the material in the headwork cart 1 from. From there, the further transport of the material takes place via the transfer conveyor belt 4 of the head work cart 1 into the container of the work cart 2 and from there in a corresponding manner further into the work car 2 located behind it.

Fig. 1c shows the unloading of the work train with new material to be installed. Here is the loading conveyor 5 in an upper position in which it does not bother. The transfer conveyor 4 at the front head end of the work train (left in the drawing) is extended and pivoted slightly upwards. Accordingly, the right in the drawing transfer conveyor belts 4 of the car 1, 2 are retracted while the left in the drawing transfer conveyors 4 of the car 1, 2 are extended. This means that new material is transported in the drawing from the right through the work car 2 through to the front overhead work carriage 1. This work cart 1 throws the supplied new material with his - in the drawing left - transfer conveyor belt 4 from.

Fig. 2a shows that a single loading conveyor 5 is provided, while in the variant in Fig. 2b two loading conveyor belts 5 are provided side by side in parallel.

A second variant of the Kopfarbeitswagens 1 with his work moves shows Fig. 3a and 3b , The difference to the first variant is that both the overhead work cart 1 and the work car 2 additionally each have a roof conveyor belt 6. These roof conveyor belts 6 extend in the longitudinal direction of the carriages 1, 2 and can be bent upwards and downwards in the end area. Another difference to the first variant is that only one active transfer conveyor belt 4 is provided (left in the drawing). The transfer conveyor 4 at the other end, as is the case with the first variant, is not needed here. It can therefore be completely omitted. But it can also be present, only it is in a rest position.

Fig. 3a shows the unloading of the work train on the headwork trolley 1 with new, einzubauendem material. The material is brought in the drawing from right to left from the work car 2 to the headwork car 1. The bottom conveyor belts 3 and the correspondingly aligned transfer conveyor belts 4 serve this purpose. After reaching the overhead working carriage 1, the new material is thrown off via its transfer conveyor belt 4.

Fig. 3b shows the loading with removed material. For this purpose, the loading conveyor 5 is moved to the appropriate position. The removed material is abandoned this loading conveyor belt 5. It first reaches the roof conveyor belt 6 of the head work cart 1 and from there to the corresponding roof conveyor belts 6 of the work car. 2

Again, the show Fig. 4a and 4b in that one or two bottom conveyor belts 3 and corresponding roof conveyor belts 6 can be provided.

Fig. 5a shows a somewhat modified, non-inventive embodiment of the head work cart 1. It in turn has a bottom conveyor belt 3, which, however, does not extend over the entire length of the head work cart 1. The bottom conveyor belt 3 is instead arranged only in the front region. Furthermore, indicated by the arrows that this bottom conveyor belt 3 is displaced forward and backward. In the region of the rear end of this bottom conveyor belt 3, an intermediate conveyor belt 8 connects in cascade, which is provided at the rear end with a feed hopper 9. The material to be supplied, which is fed via this feed hopper 9 to the intermediate conveyor belt 8, reaches the bottom conveyor belt 3. This then gives the material of a ballast unloading device 10. These are used to install the ballast in the track.

Fig. 5a shows further that the roof conveyor belt 6 of the head work cart 1 is pivoted on the one hand at the rear end about a horizontal axis upwards and downwards and further that this roof conveyor belt 6 is associated with a Ausziehförderband 11. This can be moved in the longitudinal direction of the head work cart 1 forward and backward.

The variant in Fig. 5b differs from the variant in Fig. 5a in that the roof conveyor belt 6 of the headrest carriage 1 not according to the invention is inclined downwards in the head area. This area of the roof conveyor belt 6 is then associated with the loading conveyor belt 5 with its hopper 7. According to the illustration of the arrows, this loading conveyor belt 5 is telescopically longitudinally displaceable and possibly also pivotable about a horizontal axis.

The variant in Fig. 6a is based on the design variant, as in Fig. 5a is shown. In addition, a work cart 2 is shown after the headwork cart 1 not according to the invention. This has a bottom conveyor belt 3, which is pivoted in the non-use position downwards and moved backwards, as in Fig. 6b is shown. In Fig. 6a In contrast, it is shown how the transfer conveyor belt 4 is extended and rests with its boom on the headwork cart 1, concretely rests on the hopper 9 of the intermediate conveyor belt 8. The roof conveyors 6 both of the headwork car 1 and the work car 2 are bent downwards in the end and therefore in the inoperative position.

Fig. 6a thus shows the headwork car 1 not according to the invention in transport position. Due to the possibility of resting the transfer conveyor belt 4 of the work car 2 the headwork cart 1 is at the same time overrun a separate shelter trolley dispensable. In the variant not according to the invention in Fig. 6a new material is transported via the floor conveyor belts 3 to the head-end construction site, namely the material is fed via the feed hopper 9 of the intermediate conveyor belt 8 and from there the bottom conveyor belt 3, if it is gravel, the gravel can first by the transfer conveyor belt 4 of the work cart 2 be installed on the ballast unloader 10.

The variant in Fig. 7a corresponds to the basic principle of the representation in Fig. 6a , The only difference is that the roof conveyors 6 are positioned both of the headrest carriage 1 not according to the invention as well as behind the working car 2 behind it with their pivotable ends so that a material transport of expanded material on the roof conveyor belts 6 in the drawing to the right is possible. The frontal views according to Fig. 7b finally show that one or two loading conveyor belts 5 are provided with associated, subsequent roof conveyor belts 6. Fig. 7a thus shows the system with simultaneous loading and unloading in the working position. The discharge takes place via the bottom conveyor belts 3 and the loading function via the roof conveyor belts 6 in conjunction with the loading conveyor belt 5.

The non-inventive embodiment in Fig. 8a corresponds to the basic principle of the representation in Fig. 7a , The only difference is that the loading conveyor 5 is extendable according to the arrows. The loading conveyor 5 is in the loading position.

Fig. 9a and 9b shows the optional pivotability of the bottom conveyor belt 3 of the headrest carriage 1 not according to the invention. Otherwise, this variant corresponds to the variant, as in Fig. 7a is shown.

Fig. 10a shows a first non-inventive variant of the load. The removed old material is fed via the hopper 7 the loading conveyor 5. The material transport then takes place via the roof conveyor belt 6 of the Kopfarbeitswagens on the roof conveyor belt 6 of the following work car. From there, the material can be further transported from work car 2 to work car 2.

Fig. 10b shows the unloading function on the same system. Here, the feed hopper 7 of the loading conveyor 5 is folded up. The new material to be installed comes from the work car 2. About the transfer conveyor belt 4, the material passes through the hopper 9 on the intermediate conveyor belt 8 and from there on the bottom conveyor belt 3 of the headrest carriage not inventive 1. From there then takes place the discharge of the material.

The variant in Fig. 11a shows the supply of new material on the roof conveyor belts 6, and starting from the work car up to the roof conveyor 6 of the headrest carriage not according to the invention. The discharge takes place via the loading conveyor 5, which here assumes the function of unloading conveyor.

Fig. 11b shows the same system, except that here the material on the bottom conveyor belts 3 fed and discharged, as already in Fig. 10b is shown and described.

The variant in Fig. 12a again shows the discharge of new material. The supply takes place here via the roof conveyor belts 6 on the one hand the work car 2 and on the other hand of the head wagon 1 not according to the invention. The material passes from there to the loading conveyor 5, which in turn acts as unloading conveyor. However, the material is not discharged directly here. Rather, the material first passes to the bottom conveyor belt 3 of the head work cart 1, from where the discharge then takes place. For this purpose, the bottom conveyor belt 3 of the exercise cart 1 is extended to the front.

Fig. 12b shows the corresponding situation as in Fig. 12a , except that the discharge of the new material takes place here again via the bottom conveyor belts 3. In this case, the bottom conveyor belt 3 of the head work cart 1 is extended to the front.

Fig. 13a shows a variant according to the in Fig. 12b , Only here is the final discharge not by the bottom conveyor belt 3 of the headrest carriage 1 not according to the invention, but on this bottom conveyor belt 3, the material, in this case gravel, the ballast unloading device 10 is abandoned, from where then the installation takes place in the track.

Fig. 13b again shows the loading of the material on the loading conveyor belt 5 and on the roof conveyor belt 6 of the headrest carriage 1 not according to the invention. The material is not transported via the roof conveyor belts 6 to the rear work car 2, but the pull-out conveyor belt 11 is extended in this case, so that the material is given to the first work car 2 behind the overhead work cart 1.

Fig. 14a shows the situation as it is already in Fig. 13a is shown. This means that the material to be incorporated is fed via the bottom conveyor belts 3 of the ballast unloading device 10. The difference here is that the loading conveyor 5 is telescopic.

The variant in Fig. 14b is based on the variant in Fig. 14a , Here is the situation for loading the material. The material is the telescopic loading conveyor belt 5 abandoned and abandoned on the roof conveyor belt 6 of the headrest carriage 1 not according to the invention with pulled-extractor 11 the first work car 2 behind the overhead work cart 1.

Fig. 15a shows a variant in which different materials are discharged, as indicated by the black arrows and by the white arrows. This means that two loading conveyor belts 5 and correspondingly two roof conveyor belts 6 are provided. These each form a strand of material. The removal of the two old materials is carried out such that one type of material on the roof conveyor belts 6 of the work car 2 is transported further to the rear (white arrows) while the other type of material is given to the first work car 2 behind the headwork carriage 1 not according to the invention (black arrow).

Conversely shows Fig. 15b the supply of two different types of material, which are supplied via the mutually parallel roof conveyor belts 6, both the work car 2 and the non-inventive head wagon 1 via the also double-formed loading conveyor belt 5.

Fig. 16a shows the variant with the telescopic loading conveyor belt 5, which is double again for the removal of two materials. One material (white arrow) is fed to the rear work cart 2, while the other type of material (black arrow) is fed to the first work cart 2 behind the headwork cart 1 not according to the invention.

The variant in Fig. 16b shows the situation that two types of material are supplied via the roof conveyor belts 6. The two types of material arrive on the doubler bottom conveyor belt 3 of the headrest carriage 1 not according to the invention. From there, the discharge takes place.

Fig. 17a shows that on the parallel roof conveyor belts 6 and the double executed loading conveyor 5 to a material is supplied (white arrows) and material is discharged (black arrows). In this case, the discharged material is supplied to the first work car 2 behind the headwork carriage 1 not according to the invention. For this purpose, in turn, the pull-out conveyor belt 11 is extended.

The variant in Fig. 17b however, shows that the discharged material (black arrows) is guided to the rear work car 2.

Fig. 18a shows in conjunction with Fig. 18b in that two different materials are supplied (white arrows), while a third type of material is removed (black arrows). In this case, the first material is supplied via the bottom conveyor belts 3 and via the ballast unloading device 10. The second material is supplied via the roof conveyor belts 6 and via the loading conveyor belt 5.

The Fig. 19 and 20 show the above headwork cart 1 again with a schematic overall view of the transport processes.

Fig. 21 shows in a first variant, a rolling material system. This variant is based on a head work cart 1 according to the invention and on work car 2, as in the Fig. 3a and 3b are shown. The principle is that in a continuously rolling system simultaneously abandoned material and new material is discharged.

It is according to the presentation and the functioning as in Fig. 3a new material from work car 2 to work car 2 via the transfer conveyor belts 4 fed to the overhead work cart 1 and the material dropped accordingly via its transfer conveyor belt 4. This is indicated by the white arrows. The successive forward transport of the new material gradually frees up space in the rear carriages. This space is used to supply expanded material. This is the loading conveyor belt 5 of the Kopfarbeitswagens 1 abandoned and transported over the roof conveyor belts 6 to the rear. When the last work car 2 while the roof conveyor 6 is shortened. This means that the removed old material gets there in the container of the last work car 2. This removed material then forms the continuation of the new material at its rear end and thus fills up the emptying work car 2.

Fig. 22 shows an alternative variant Fig. 21 , Here, the headwork car 1 is not designed according to the work car 2, but designed as a specially trained, not inventive head work cart 1.

Fig. 23 shows the rolling system with a first variant of the non-inventive mind work cart 1. The transport processes are recognizable by the black and white arrows. In contrast to the rolling system described above, an additional loading hopper 12 is provided here, namely at the rear end of the last work cart 2. This can either be placed or firmly bolted to the container of this last work car 2. This loading hopper 12 is used for fast loading of the work car 2 from externally stored material, as shown in the FIGS. 24a and 24 is shown. The dimensions of this loading hopper 12 are preferably formed so wide that the bucket contents of a wheel loader can be completely unloaded.

Fig. 25 shows in conjunction with the Figs. 26a and 26b the same system, but with another embodiment according to the invention of the exercise cart 1.

Claims (20)

1. A head work carriage (1),
   suitable for being arranged on the head of a work train consisting of a plurality of work carriages (2) for creating and/or refurbishing a railway line consisting of a substructure as well as of tracks, wherein the work carriages (2) of the work train each have a reversibly operable floor conveyor belt as well as a transfer conveyor belt at least on the one end for transferring material from one work carriage (2) to the next work carriage (2),
   wherein the head work carriage (1) has a floor conveyor belt (3) and a loading conveyor belt (5) comprising a feed hopper (7), wherein the loading conveyor belt (5) is arranged linearly displaceably on a front end of the head work carriage (1) in the head region and roof region thereof, for the exact positioning of a feeding region of the loading conveyor belt (5) with respect to an excavation location,
   characterised in that
   the floor conveyor belt (3) is reversibly operable for loading and unloading materials and is displaceable in the longitudinal extension of the head work carriage (1), that the loading conveyor belt (5) is reversibly operable for loading and unloading materials in the frontal head region and that
   the head work carriage (1) has, on its front end, a reversible operable transfer conveyor belt (4), which is assigned to the floor conveyor belt (3) and which is suitable for loading and unloading material in the head region,
   wherein, when the head work carriage (1) is arranged on the head of the work train, the floor conveyor belt (3), the assigned transfer conveyor belt (4), and the loading conveyor belt (5) of the head work carriage (1) on the one hand, and the floor conveyor belts and the transfer conveyor belts of the work carriages (2) on the other hand can optionally be positioned to one another with respect to their relative arrangement in such a way and can be adjusted with respect to their conveying device in such a way that, alternatively or simultaneously, the work train with its work carriages (2) can be loaded with excavated material via the head work carriage (1) and/or the work train with new material loaded into the work carriage (2) can be unloaded via the head work carriage (1).
2. The head work carriage (1) according to claim 1,
   characterised in that
   the head work carriage (1) has one or a plurality of roof conveyor belts (6) in the roof region, wherein the roof conveyor belt (6) in the rearward region can preferably be pivoted about a horizontal axis and/or an extendible conveyor belt (11) is assigned to the roof conveyor belt (6) in the rearward region.
3. The head work carriage (1) according to claim 1 or 2,
   characterised in that
   the head work carriage (1) has, on both carriage ends, a transfer conveyor belt (4) in each case,
   wherein, for unloading, the transfer conveyor belt (4) can be activated on the head end and the transfer conveyor belt (4) can be deactivated on the other end, and wherein, for loading, the transfer conveyor belt (4) can be deactivated on the head end via the loading conveyor belt (5), and the transfer conveyor belt (4) can be activated on the other end.
4. The head work carriage (1) according to at least any one of the preceding claims,
   characterised in that
   the head work carriage (1) has a gravel unloading device (10), which is preferably arranged on the head end and which is assigned to the floor conveyor belt (3), wherein the floor conveyor belt (3) can be longitudinally displaced in such a way that the new material can optionally be unloaded directly via the floor conveyor belt (3) or that the gravel unloading device (10) can be loaded via the floor conveyor belt (3).
5. The head work carriage (1) according to at least any one of the preceding claims,
   characterised in that
   the loading conveyor belt (5) is telescopic.
6. The head work carriage (1) according to the preceding claim,
   characterised in that
   the floor conveyor belt (3) can be pivoted about a vertical axis and/or about a horizontal axis.
7. The head work carriage (1) according to the preceding claim,
   characterised in that
   an intermediate conveyor belt (8) is assigned to the floor conveyor belt (3).
8. The head work carriage (1) according to claim 5,
   characterised in that
   a feed hopper (9) is assigned to the floor conveyor belt (3) and/or to the assigned intermediate conveyor belt (8).
9. The head work carriage (1) according to at least any one of the preceding claims,
   characterised in that
   the head work carriage (1) has one or a plurality of loading conveyor belts (5), which are parallel to one another,
10. A work train for creating and/or refurbishing a railway line consisting of a substructure as well as of tracks,
    which has a plurality of work carriages (2) and a head work carriage (1) on a head end,
    characterised in that
    the head work carriage is a head work carriage according to at least any one of claims 1 to 9.
11. The work train according to claim 10,
    characterised in that
    the head work carriage (1) as well as the work carriages (2) each have a transfer conveyor belt (4) on both carriage ends, wherein

    - for unloading, the transfer conveyor belts (4) can be activated on the end of the carriages (1, 2) directed towards the head end of the work train, in order to transport material to the head end of the work train (1), from where the material can be dropped via the transfer conveyor belt (4) of the head work carriage (2), and the transfer conveyor belts (4) can be deactivated on the other end, and

    - for loading via the loading conveyor belt (5), the transfer conveyor belts (4) can be deactivated on the end of the carriages (1, 2) directed to the head end of the work train, and the transfer conveyor belts (4) can be activated on the other end, in order to transport material in a reverse transport direction.
12. The work train according to claim 10 or 11,
    characterised in that
    the head work carriage (1) as well as the work carriages (2) each have a roof conveyor belt (6), which is embodied for loading and/or unloading, in the roof region.
13. The work train according to at least any one of claims 10 to 12,
    characterised in that
    the supply of the new material to be installed to the head work carriage (1) and/or the discharge of the excavated, old material, in each case takes place via reversibly operable roof conveyor belts (6), starting at the head work carriage (1).
14. The work train according to at least any one of claims 10 to 13,
    characterised in that
    the supply of the new material to be installed to the head work carriage (1) and/or the discharge of the excavated, old material takes place via reversibly operable floor conveyor belts (3) of the work carriages (2) as well as of the head work carriage (1), starting at the head work carriage (1).
15. The work train according to at least any one of claims 10 to 14,
    characterised in that
    the transfer conveyor belt (4) of the work carriage (2), which directly follows the head work carriage (1), can be placed onto the head work carriage (1), in particular during a transfer travel of the work train.
16. The work train according to at least any one of claims 10 to 15,
    characterised in that
    in a rolling system,

    - new material loaded into the work carriage (2) can be unloaded by means of the floor conveyor belts (3) as well as the transfer conveyor belts (4) via the head work carriage (1) and simultaneously

    - excavated old material can be transported to the rear via the loading conveyor belt (5) of the head work carriage (1) as well as via the roof conveyor belts (6) of the head work carriage (1) as well as of the work carriages (2), and can be fed to the corresponding work carriage (2), following the new material.
17. The work train according to claim 16,
    characterised in that
    the roof conveyor belt (6) in the case of the last work carriage (2) of the work train is embodied in such a way that a drop of the old material into said last work carriage (2) is made possible.
18. The work train according to at least any one of claims 10 to 17,
    characterised in that
    the work carriage (2) has a loading hopper (12).
19. A method for loading and unloading a work train consisting of a plurality of work carriages (2), wherein the work carriages (2) of the work train each have a reversibly operable floor conveyor belt as well as a transfer conveyor belt at least on the one end for transferring material from one work carriage (2) to the next work carriage (2), and has a head work carriage (1) according to at least any one of claims 1 to 9 on the head end,
    wherein the head work carriage (1)

    - has a floor conveyor belt (3) for loading and/or unloading materials, and a loading conveyor belt (5) for loading and/or unloading materials, which is embodied for the exact positioning of the feeding region of the loading conveyor belt (5) with respect to the excavation location, and

    - has a transfer conveyor belt on a front end in the head region of the head work carriage (1), which is assigned to the floor conveyor belt (3) and which is suitable for loading and unloading material in the head region,

    wherein the floor conveyor belt (3), the assigned transfer conveyor belt (4), and the loading conveyor belt (5) of the head work carriage (1) are optionally positioned to one another with respect to their relative arrangement in such a way and can be adjusted with respect to their conveying device
    in order to alternatively or simultaneously perform the following steps:

    for loading the work train:

    - moving into the loading position of the loading conveyor belt (5) of the head work carriage (1),

    - feeding excavated material to the loading conveyor belt (5) via the feed hopper (7), and

    - feeding the excavated material to the adjacent work carriage (2) via the transfer conveyor belt;

    for unloading the work train:

    - feeding material to be installed from the adjacent work carriage (2) to the head work carriage (1), and

    - unloading the material to be installed via the floor conveyor belt (3) or the loading conveyor belt (5) of the head work carriage (1).
20. The method according to claim 19,
    wherein the head work carriage (1) has a gravel unloading device (10) and for unloading the work train performing the step of:

    - supplying the material to be installed to the gravel unloading device (10) via the floor conveyor belt (3) and setting the material to be installed into the track via the gravel unloading device (10).

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