EP0670932B1 - Track-laying machine for renewing railway tracks - Google Patents

Abstract

PCT No. PCT/EP94/03026 Sec. 371 Date Apr. 21, 1995 Sec. 102(e) Date Apr. 21, 1995 PCT Filed Sep. 9, 1994 PCT Pub. No. WO95/08029 PCT Pub. Date Mar. 23, 1995A track building machine (34) for the renewal of tracks, essentially comprising a machine frame (1), supported on rail mountings (2, 3), having a work aggregate (38) exhibiting devices (5, 6, 7) for preparing a ballast bed, for lifting out old ties (8) and for laying new ties (9), and additionally comprising devices (35, 36, 10, 11, 12) for transporting the old and new ties (8, 9) and for raising, guiding and stretching apart old rails (13). For the support of the rail mounting (3) in working deployment, which rail mounting is disposed directly in front of the work aggregate (38) in the direction of working, a slide mechanism (18) is provided, which is rollable on the old ties (8). The work aggregate (38) for lifting out the old and laying the new ties (8, 9), outside a section limited by the rail mountings (2, 3) connected to the machine frame (1), is fastened on an extension arm (4) prolonging the machine frame (1). Between the extension arm (4) and the work aggregate (38) there is provided a vertical-adjustment device (20).

Description

The invention relates to a track construction machine for renewing tracks according to the preamble of patent claim 1.

Such a track construction machine is already known from EP-A-0 168 103. In this machine, the carrier on which the work group with the equipment for processing a ballast bed, lifting old sleepers and laying new sleepers is mounted on a second machine frame. This second machine frame is hinged at its front end to the first machine frame which is supported on rail running gear and is equipped at its rear end with a rail running gear and next to it with a height-adjustable chain running gear. When crossing, the second machine frame rolls with its rail undercarriage on the rails, while in work, with the rail undercarriage raised, it moves on the chain undercarriage, which is supported on the newly laid sleepers. The rear rail chassis of the first machine frame, which is located in the area of the joint, is placed on a slide device during use, which in turn can be moved on the old sleepers.

From DE 29 09 575 C a mobile device for laying rails and / or sleepers of a track is known, which has two machine frames which are connected at one end by a joint arrangement and each rest on a chassis at the other end, and in which the working group for picking up the old sleepers and laying the new sleepers as well as the devices for spreading out the old rails and for inserting the new rails are arranged between the two chassis mentioned. In addition, in the area of the joint arrangement of the two machine frames, a middle chassis is provided, which is provided with a sliding device during the working phase, which is directly displaceable laterally on the sleepers of the track.

Another type of known track construction machine for renewing tracks is described in DE 28 18 514 C. There is a mobile device for the continuous replacement or renewal of a rail and sleepers existing track shown, which consists of a vehicle assembly, the main conversion part is designed as a support frame, which is supported with both ends on rail bogies, on which the work elements for replacing or renewing the rails and / or sleepers are attached between the bogies. The supporting frame of this machine is formed from two frame parts which are connected to one another in an articulated manner and which have a height-adjustable third rail undercarriage in the region below the frame joint. In a variant of this invention, in the area of the frame joint, an additional, height-adjustable portal drive, which can be moved on the uprights in front of the sleepers, is provided for temporary support of the support frame during work travel.

The aforementioned known machines of the generic type all have two articulated machines or frame parts to which the working members are attached. The result of this arrangement is that the machines require a large overall length, a heavy weight and, accordingly, high costs.

The present invention has for its object to provide a track construction machine for renewing tracks, which avoids the aforementioned disadvantages of the known machine types and which ensures a qualitatively improved and operationally simplified operation with a constructional simplification and economically inexpensive construction.

This object is achieved by the features specified in the characterizing part of claim 1. The measures according to the invention enable a track construction machine for renewing tracks, which is simple and compact, in particular with a reduced construction length distinguished. The suspension of the work group on a cantilever projecting beyond the rear rail undercarriage enables a quick and simple method of operation which can be clearly controlled by the operating personnel. The quality of work is ensured by a precise placement of the new sleepers on the ballast bed prepared by suitable devices, without the laid new sleepers having to be touched again before the new rails are inserted. This largely eliminates the risk of unwanted shifts in the new sleepers, resulting in a subsequent qualitatively objectionable track position. The short design of the machine allows easy maneuvering and driving in narrow bends and in places with limited space.

An advantageous development of the invention is that a support frame of the work group connected to the height adjustment devices is connected at its rear end in the working direction to a height-adjustable additional rail running gear. This design variant creates better driving conditions for transport journeys because the non-negligible mass of the work group is supported by an additional rail carriage on the track and thus the load on the rear rail carriage of the machine or main frame is relieved. At the same time, this improves the maneuverability of the track-laying machine as well as the option of equipping traction and pushing devices in the rear area without impairing the quality of work and without significantly extending the overall length.

In the embodiment according to claim 5, an even further advantage is created in that a transport vehicle supported on rail bogies and a loading platform for supporting the work group during machine transport is provided, which can be detachably connected by a coupling device to the rear end of the machine frame in the working direction. This advantageous embodiment has the exemption from aggravating provisions in accordance with the railway transport regulations for transport and maneuvering journeys, since the tractive and impact forces occurring during the transport in the train association by the additional transport vehicle directly in the machine or. The main frame can be introduced without these tensile and impact forces having to pass through the work group and the jib projecting to the rear. This eliminates the need for complex constructions in this area of the machine to absorb the considerable impact and tensile forces in transportation. The machine can thus be transported from one construction site to another in a simpler manner.

A further advantageous embodiment according to claim 6 provides that the working group is equipped in its rear end region in the working direction with devices for inserting rails onto the sleepers. This design makes it possible to equip the machine for the complete renewal of the track with simple and inexpensive means and, in addition to changing sleepers, also being able to replace rails. This version allows the new rails to be placed on the new sleepers, so that behind the machine there is a completely renewed track on which only the rail screw connections have to be attached. It is possible to either reinsert the old rails that were spread out to replace the sleepers and place them on the new sleepers (only sleepers change using the old rails again) or new rails that were previously stored on the track preferably in front of the sleepers to lay the new thresholds.

Another variant provides a track construction machine according to claim 7, in which the additional transport vehicle, which primarily serves to place the work group in the transport position, is equipped with devices for inserting rails onto the sleepers. In order to be able to lower the work group into the work position during the work phase, the additional rail vehicle is carried behind the machine by means of a spacer coupling device at the distance required for optimal operation, the rails being inserted from the additional transport vehicle. The spacer coupling device is expediently designed in such a way that, via it, the energy required for inserting the rails from the track-laying machine onto the transport vehicle can be brought. In order to be able to drive the transport vehicle under the work group raised for this purpose during the transport position, the devices for inserting the new rails, the work item intended for this purpose and any other work organs are expediently to be folded and / or displaceably provided. This design allows the transport vehicle to be carried along during work in a simple manner, without this having to have its own drive and its own energy supply. At the same time, the new rails can be inserted from the transport vehicle, an optimal and material-saving work being made possible by a selectable length of the spacer coupling device.

An advantageous combination of the track-laying machine according to the invention is characterized in accordance with claim 8 by a transport vehicle provided behind the track-laying machine for work use with a vehicle frame supported on rail bogies, a drive unit, a driving or. Work cabin with a central control device and with devices for guiding and storing rails on sleepers that are provided in the area of the driving or working cabin and protrude beyond the end of the vehicle frame - height and side adjustable.

This system has the advantage that the transport vehicle can operate completely independently of the track construction machine during the work phase. This can be advantageous for inserting the new rails, since this can be done regardless of the speed of advance of the track-laying machine. This independence allows at the same time that with the additional self-propelled and power supply transport or rail laying vehicle other work such as material or person transport or other functions can be performed on the track. This therefore gives greater flexibility for the implementation of the entire track renewal construction site and can thus result in overall savings in costs and personnel.

• Fig. 1 zeigt eine schematische Seitenansicht einer ersten Ausführungsvariante der Gleisbaumaschine gemäß der Erfindung,
• Fig. 1a zeigt eine schematische Aufsicht auf die Maschine gemäß Fig. 1 mit dem vorderen Fahrgestell, den Mitteln zum Ausspreizen und Führen der Altschienen, Gleitvorrichtungen, die sich auf den von Schienen befreiten Schwellen bewegen, sowie der Arbeitsgruppe mit Vorrichtungen zum Aufnehmen der Altschwellen, einer Vorrichtung zum Aufbereiten des Schotterbetts und der Vorrichtung zum Verlegen von Neuschwellen,
• Fig. 2 zeigt den vergrößerten, hinteren Teil der Gleisbaumaschine gemäß Fig. 1 mit einem Zusatz-Schienenfahrwerk in Arbeitsstellung,
• Fig. 2a stellt dieselbe Ausführung in Transportstellung dar,
• Fig. 3 stellt eine weitere Ausführungsvariante der Gleisbaumaschine mit einem zur Abstützung der Arbeitsgruppe während der Überstellfahrten vorgesehenen Transportfahrzeug dar,
• In Fig. 4 ist eine Ausführungsvariante der Gleisbaumaschine mit einer Einrichtung zum Einlegen der Schienen auf die Neuschwellen dargestellt,
• Fig. 4a zeigt dieselbe Ausführungsvariante in Transportstellung, wobei die am hinteren Maschinenende vorgesehene Arbeitsgruppe auf ein zusätzliches an den Hauptrahmen angekuppeltes Transportfahrzeug abgestützt ist,
• Fig. 5 zeigt das mittels einer Distanzkupplungsvorrichtung an die Gleisbaumaschine angekuppelte Transportfahrzeug, welches Vorrichtungen zum Einlegen der Neuschienen sowie eine Vorrichtung zur Spurhaltung der Neuschienen aufweist,
• Fig. 5a zeigt dieselbe Ausführungsvariante in Transportstellung, und
• Fig. 6 zeigt eine Kombination eines unabhängigen Transport- bzw. Schienen-Verlegefahrzeuges mit eigenem Antrieb und Energieversorgung mit der in Arbeitsrichtung vorgeordneten Gleisbaumaschine.

The invention is explained below with reference to exemplary embodiments shown in the drawings:

• 1 shows a schematic side view of a first embodiment of the track construction machine according to the invention,
• 1 a shows a schematic plan view of the machine according to FIG. 1 with the front chassis, the means for spreading and guiding the old rails, sliding devices which move on the sleepers freed from rails, and the working group with devices for receiving the old sleepers, a device for processing the ballast bed and the device for laying new sleepers,
• 2 shows the enlarged, rear part of the track-laying machine according to FIG. 1 with an additional rail running gear in the working position,
• 2a shows the same embodiment in the transport position,
• 3 shows a further embodiment variant of the track-laying machine with a transport vehicle provided to support the work group during the transfer journeys,
• 4 shows a variant of the track construction machine with a device for inserting the rails onto the new sleepers,
• 4a shows the same embodiment variant in the transport position, the work group provided at the rear machine end being supported on an additional transport vehicle coupled to the main frame,
• 5 shows the transport vehicle coupled to the track-laying machine by means of a distance coupling device, which has devices for inserting the new rails and a device for tracking the new rails,
• 5a shows the same embodiment variant in the transport position, and
• 6 shows a combination of an independent transport or rail laying vehicle with its own drive and energy supply with the track construction machine arranged upstream in the working direction.

The drawings are shown only schematically to facilitate understanding of the invention. They represent only certain design variants according to the invention; further variants covered by the invention are conceivable, but not shown.

The track construction machine 34 has a machine frame 1, which is supported on a front rail carriage 2 and a rear rail carriage 3. A cantilever 4 is located above the rear rail carriage 3 of the machine 34 in the working direction, on which devices 5 for lifting old sleepers 8, devices 6 for preparing the ballast bed and devices 7 for laying new sleepers 9 are suspended as working elements for the track renewal. On the machine or main frame 1, further devices 35, 36 designed as conveyor belts are provided for leading away the old sleepers 8 and for bringing the new sleepers 9 up. The machine frame 1 also carries devices 10, 11, 12 for lifting, guiding and spreading out the old rails 13. The track-laying machine 34 is provided with a motor 14 which provides the energy for work and driving ahead. The main work functions are operated from the work cabin 15 positioned behind the boom 4 in the working direction with a central control device 39. In addition, a portal crane 16 is provided for transporting the old sleepers 8 and the new sleepers 9, which is on the machine frame 1 and on possibly pre-coupled sleeper transport carriages is movable by means of a running rail 17.

During the working phase, the rear rail carriage 3 is supported on sliding devices 18, which can be moved on the old sleepers 8 of the old track 19 which have been freed from the old rails 13. The old sleepers 8 provide lateral guidance at the same time, since the sliding devices 18 are themselves expediently move in the rib plates or in the area of the rail support.

The lifting or lowering of a work group 38 carrying the work organs or devices 5, 6, 7 on a support frame 37 is carried out by suitable hydraulic cylinders, generally referred to as height adjustment device 20, which are articulated on the boom 4 and by means of a roller 21 and a support cable 22 and a lifting rod 23 are connected to the work group 38.

2 as a variant of the invention articulated to the working group undercarriage frame 24 carries an additional rail undercarriage 25, which is supported only in the transport position on the track 26. The support cable 22 and the lifting rod 23 are retracted by means of the height adjustment device 20, as a result of which the work group 38 together with the support frame 37 is raised into a transport position (FIG. 2a). The additional rail undercarriage 25 is attached at the end to the undercarriage frame 24, which in turn is connected to the support frame 37 by its front end in the working direction, opposite the additional rail undercarriage 25 via a joint 40 with a swivel axis running perpendicular to the machine longitudinal direction and horizontally. A pivot drive 41 is provided for pivoting or height adjustment of the undercarriage frame 24 together with the additional rail undercarriage 25. In order to enable the height adjustment of the work group 38, each device 35, 36 for transporting the old or new sleepers has a joint 42 in its rear end region. The support frame 37 is connected in an articulated manner to the rear end of the machine frame 1 via a link rod 43.

As shown in FIG. 3, the track construction machine 34 carries pulling and pushing devices 27 at the rear end of its machine frame 1 in the working direction (arrow), by means of which an additional transport vehicle 28 can be coupled. This is supported on rail bogies 44 and has a loading platform 45 for supporting the work group 38 during machine transport. This support relieves the rear chassis 3 of the machine 34. At the same time, the track construction machine 34 can be used for the transport journey as a standard vehicle in accordance with the relevant railway technology Regulations are formed because the tractive and impact forces occurring in the transport traffic are introduced directly into the machine frame 1 of the track-laying machine 34 through the vehicle frame 46 of the additional transport vehicle 28.

As shown in FIG. 4, height and side adjustable devices 29 for inserting new rails 30 are additionally articulated on the installed new sleepers 9 on the rear part of the track construction machine 34. For this purpose, the new rails 30 are expediently stored in the area in front of the sleeper heads or in the middle of the track. The devices 29 can also be used to reinsert the old rails 13 that were spread out during the replacement of the sleepers, in order to carry out only a replacement of the sleepers.

Means 47 for inserting the rails on the new sleepers 9 laid can also be arranged on the additional transport vehicle 28. As shown in FIG. 5, the devices 47 are articulated to the front area of the transport vehicle 28. A spacer coupling device or spacer rod 31 is used to carry the transport vehicle 28 with the track construction machine 34 during work. A work cabin 32 with a control device 48 is slidably provided on the transport vehicle 28 in its longitudinal direction, so that it can be moved to the rear end of the transport vehicle 28 in the transport position. A loading platform 45 of the vehicle frame 46 can be used to support the work group 38 during the machine transport.

In the embodiment variant shown in FIG. 6, the additional transport vehicle 28 is provided with its own drive unit 33, which allows the drive-up and work to be carried out independently of the track-laying machine 34 and regardless of its speed of advance.

List of reference symbols

Claims (10)

1. A track building machine for the renewal of tracks, comprising a machine frame (1), supported on rail mountings (2, 3), having a work aggregate (38) exhibiting devices (5, 6, 7) for preparing a ballast bed, for lifting out. old ties (8) and for laying new ties (9), having devices (35, 36, 10, 11, 12) for transporting the old and new ties (8, 9) and for raising, guiding and stretching apart old rails (13) and having a slide mechanism (18), which is rollable on the old ties (8), for supporting the rail mounting (3) in working deployment, which rail mounting is disposed directly in front of the work aggregate (38) 'in the direction of working, wherein the work aggregate (38), outsideasection limited by the rail mountings (2,3) connected to the machine frame (1), is fastened on a support prolonging the machine frame (1), characterized in that said support prolonging the machine frame (1) is an extension arm (4) projecting from the end of the machine frame and in that between this extension arm (4) and the work aggregate (38) there is provided a vertical-adjustment device (20).
2. The machine as claimed in claim 1, wherein a supporting frame (37) of the work aggregate (38), which supporting frame is connected to the vertical-adjustment devices (20), is connected at its rear end in the direction of working to a vertically adjustable auxiliary rail mounting (25).
3. The machine as claimed in claim 2, wherein the auxiliary rail mounting (25) is fastened on the end side on a mounting frame (24), which, for its part, is connected by its front end in the direction of working, said front end lying opposite the auxiliary rail mounting (25), via an articulation (40) having a swivel axis running horizontally and perpendicular to the longitudinal direction of the machine, to the supporting frame (37), and wherein, for the pivoting of the mounting frame (24), a swivel drive (41) is provided.
4. The machine as claimed in one of claims 1, 2 or 3, wherein the work aggregate (38) exhibits, at its rear end in the direction of working, an operating cab (15) having a central control unit (39).
5. The machine as claimed in claim 1, which has a transport vehicle (28), which is supported on rail mountings (44) and exhibits a loading platform (45) for supporting the work aggregate (38) during machine transport and which can be releasably connected by a coupling device (27) to the rear end of the machine frame (1) in the direction of working.
6. The machine as claimed in one of claims 1 to 5, wherein the work aggregate (38) is equipped, in its rear end region in the direction of working, with devices (29) for laying rails (30, 13) onto the ties (9).
7. The machine as claimed in claim 5, wherein the transport vehicle (28) is equipped with devices (47) for laying rails (30) onto the ties (9), and wherein - in working deployment - a distance coupler (31) is provided between the machine frame (1) and the transport vehicle (28).
8. A system for the renewal of tracks, having a track building machine as claimed in claim 1, characterized by a transport vehicle (28) which is designed for working deployment behind the track building machine (34) and has a vehicle frame (46) supported on rail mountings (44), a drive unit (33), a driving or operating cab (32) having a central control unit (48), and devices (47) - vertically and laterally adjustable - which are provided in the region of the driving or operating cab (32) and jut out over the end of the vehicle frame (46), for guiding and depositing rails (30, 13) on ties (9).
9. The system as claimed in claim 8, wherein the vehicle frame (46) exhibits a loading platform (45) for supporting, during machine transport, the work aggregate (38) connected to the machine frame (1).
10. The system as claimed in one of claims 8 or 9, wherein the driving or operating cab (32) and the devices (47) for guiding and depositing rails (30) are mounted displaceably on the vehicle frame (46) in the longitudinal direction of the machine.

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