WO2009000002A1

WO2009000002A1 - Device and method for laying sleepers on a track bed

Info

Publication number: WO2009000002A1
Application number: PCT/AT2008/000182
Authority: WO
Inventors: Norbert Schauer
Original assignee: Swietelsky Baugesellschaft M.B.H.
Priority date: 2007-06-22
Filing date: 2008-05-28
Publication date: 2008-12-31
Also published as: AT505402B1; AT505402A4; EP2158362A1

Abstract

Device (1) for laying sleepers (2) on a track bed (3), having a carrier (4), which can be held by crane and which has picking up devices and setting down devices for a position (12) of sleepers (2) which lie one next to the other, which picking up devices are formed by two parallel carrier rails (13) which are mounted on the carrier (4) so as to be capable of moving towards one another in order to engage under the ends of the sleepers (2) in order to pick them up, wherein the setting down devices are formed by the same carrier rails (13) which can move apart from one another in order to set down the sleepers (2), and wherein the support rails (13) are contoured, when viewed from above, in the form of mirror-inverted prongs on their sides facing one another.

Description

Device and method for laying sleepers on a trackbed

The present invention relates to a device for laying sleepers on a trackbed, comprising a crane-mountable carrier having receiving and Absetzzeinrichtungen for a layer of adjacent sleepers, wherein the receiving means are formed by two parallel support rails which are movable on the carrier towards each other. Gert are to engage the ends of the thresholds for recording. The invention further relates to a method for laying sleepers from a supply in which they are substantially close together, at intervals on a track bed.

Such devices are also referred to in railway construction as threshold laying traverse and are known in various forms. For a long time there are rigid trusses with chain hangers, in which the sleepers are hung manually and then discontinued from them by hand, a complex and laborious process. On the other hand, automated sleeper trays are known which receive a group of juxtaposed sleepers from a supply by means of a multiplicity of hydraulic grippers, whereupon the grippers with one threshold each move apart to the laying distance and deposit the sleepers so spaced apart on the track bed.

From CH 398 663 a sleeper traverse and a method for depositing the sleepers are known, the sleepers being gripped at their ends by individual hooks and picked up from a supply. All hooks for the odd-numbered sleepers on the one hand and all those for the even-numbered sleepers on the other hand are rigidly coupled to each other via rods so that they can be swung in and out in groups. By pivoting apart the hooks of the first group, all odd-numbered sleepers on the track bed are first of all spaced apart. set, then the sleeper traverse is traversed over another section of the track bed, and then the even-numbered thresholds are dropped by pivoting the hooks of the second group apart. However, the hook and pivot construction is complicated and prone to failure; moreover, the hooks seize the sleepers as they are on the supply, ie even if they are not arranged exactly parallel, which error is also reflected in settling the sleepers on the track bed. From EP 0 422 578 a sleeper traverse of the aforementioned type is known in which the recorded with the support rails thresholds are transported by a traction device on the support rails in the longitudinal direction to a threshold gripper at the rail end, from where they are then stored individually by the threshold gripper. Also, this construction is complicated and correspondingly expensive, moreover, the installation speed by the individual dropping the thresholds is correspondingly low.

The invention has for its object to provide a device and a method for laying sleepers on a track bed, which or allow a largely automated operation and are structurally simple in construction and able to thresholds with high precision quickly and accurately to position embarrassed. This object is achieved in a first aspect of the invention with a device of the aforementioned type, which according to the invention is characterized in that the Absetzzeinrichtungen are formed by the same support rails, which are movable apart for settling the thresholds, wherein the support rails on their sides facing each of Seen above are contoured equal crenellated.

In a second aspect of the invention, this object is achieved by a method of the type mentioned above, comprising the steps of: a) picking up a layer of sleepers from the supply, b) placing the ply over a first section of the track bed; c) depositing each nth ply of the ply on the first section, where n = 2, 3, 4, etc., d) transferring the remaining sleepers over another one Section of the track bed, e) settling about the same number of thresholds as in step c) at the same intervals as in step c) on the further section, and f) repeating steps d) and e) until all the thresholds have settled characterized in that the recording in step a) by pushing together two counter-crenellated contoured mounting rails under the ends of the thresholds, settling in step c) by pulling the support rails until every nth threshold passes between the battlements, and settling in the or the step (s) e) by gradually further pulling apart of the support rails until the other thresholds pass through the battlements, respectively.

The device and the method of the invention allow in a structurally simple way a particularly fast and accurate laying of sleepers. By using crenellated contoured mounting rails, the sleepers are already positioned at the correct mutual distance when setting down. Complicated single pivot mechanisms for threshold hooks or conveyors for the sleepers are completely eliminated. As a result, the device of the invention is much simpler and less expensive than the known automated solutions, which not only has corresponding cost advantages, but also ensures uncomplicated and trouble-prone operation.

For modern high-speed railway lines, a narrow threshold distance is usually desired, for which the so-called two-stage settling of the sleepers is particularly suitable which the laying distance corresponds approximately to a threshold width. According to the invention, however, the settling of the thresholds can be carried out not only in two but, if necessary, also in several successive steps, for example in three steps: In the first step, for example, the thresholds Nos. 1, 4, 7 etc. of the position are deducted second step, the thresholds Nos. 2, 5, 8, etc., and in the third step, the threshold Nos. 3, 6, 9, etc., for example, when large threshold distances are desired. A preferred embodiment of the invention is therefore characterized in that the battlements of a mounting rail protrude in different degrees in a periodic sequence, whereby the gradual settling can be effected in a simple manner by stepwise moving apart of the mounting rails. A further advantageous embodiment of the invention is that the device comprises a fixable on the thresholds of a recorded position fixing rail to fix the thresholds during the separation movement of the support rails in the threshold longitudinal direction. This can further increase the precision of weaning.

It is particularly advantageous if the device further comprises a sliding device for pushing together a position of sleepers received by the mounting rails. As a result, any misalignment of the thresholds in the supply can be eliminated, so that they receive a predefined parallel position for settling, which further increases the precision.

Preferably, the sliding device comprises at least one engageable in and out of operative position stop for one side and a movable slide for the other side of a recorded position. This has the additional advantage that the stop and / or the slider can also be used during the picking up of the layer from the supply to also divert the outermost of the strips to be taken from the adjacent sills. back to allow a correct attack of the DIN rails.

In a further preferred embodiment of the invention, the device has a spacing device which can be introduced between the sleepers for defined mutual spacing of the sleepers of a recorded layer. This opens up a variety of other installation options. On the one hand, the thresholds can be deposited in a precisely defined mutual distance, which not only corresponds to the two-, three-, four-fold, etc., of the threshold width, but also at arbitrarily greater intervals. On the other hand, even small curve radii can be placed on the track bed, for example if the sleepers at their one end - within the limits of their Auflagerung on the mounting rails - slightly more spaced apart than at their other ends.

It is particularly advantageous if, according to a further feature of the invention, the spacing device comprises at least one row of sliding teeth linked with play, which, after their introduction between the thresholds, can be pulled apart to the maximum utilization of their games in order to space the thresholds from one another. As a result, only a single drive per row of the spacer device is needed, which further simplifies the construction. It is particularly advantageous if the said games are adjustable, so that the device can be adapted in a simple manner to different installation distances.

In the simplest case, all movable components of the device can be operated manually, if necessary assisted by corresponding actuators. Preferably, the movable components such as the support rails, the fixing rail, the sliding device and the spacer device are each actuated by means of the hydraulic cylinder mounted on the carrier, more preferably run-controlled by a process control. There- Through the whole operation can be semi or even fully automated.

Further features and advantages of the device and the method of the invention will be explained in more detail with reference to embodiments illustrated in the attached drawings. In the drawings: Figs. 1 to 3 show the device of the invention in a plan view, a (shortened) side view and an end view; Figures 4 and 5, the detail A of Figures 1 and 2 enlarged in two different operating positions. Figures 6 to 14 show the steps of the method of the invention with reference to schematic sketches of the components of the device involved; and FIG. 15 shows an alternative embodiment of the carrier rails in a plan view.

FIGS. 1 to 3 show a device 1 for laying sleepers 2 on a track bed 3 (FIG. 6) in detail. The device 1 comprises a carrier 4 consisting of two longitudinal beams 5 and four transverse beams 6, which can be held by a crane 8 (FIG. 6) via a holding device 7 (FIG. 8) (shown schematically).

The crane 8 is of any type, such as a construction or gantry crane or as shown a track crane, which can be moved on a siding 9 next to the sleepers 2 to be trackbed 3, up to a stock 10 to be laid thresholds 2 on a freight car 11th

The sleepers 2 are prefabricated, for example, made of concrete and stored in three superimposed layers 12 to 56 nebeneinan- underlying sleepers 2 on the goods wagon 11. Each threshold 2 has (seen in the rail longitudinal direction) a width of eg 285 mm. The sleepers 2 are in each layer 12 of the stock 10 only approximately parallel, that is usually filed with variable distances of up to a few cm, so that they the precise laying on the track bed 3 must be aligned, as will be explained later in more detail.

As a means for receiving the sleepers 2 from the supply 10 and settling on the track bed 3, the device 1 has two extending over the entire length of the device parallel mounting rails 13 which are mounted transversely movable on the carrier 4 and by means of hydraulic cylinders 14 are driven (in 1 shows only one mounting rail 13 for the sake of clarity, the second is a mirror image). For receiving the sleepers 2 from the supply 10, the device 1 is lowered onto the uppermost layer 12 until it rests on it with the aid of support rails 15 (FIGS. 3, 7). Subsequently, the two support rails 13 are moved against each other or retracted until they reach under the ends of the sleepers 2 (FIGS. 7, 11) and the layer 12 can be lifted off the supply 10.

When retracting the mounting rails 13, the sleepers 2 are aligned flush in the threshold longitudinal direction, since they are present with their ends to the towering parts of the support rails 13 (see Fig. 3, 7). As can be seen in particular from FIGS. 1, 11, 12 and 14, the support rails 13 are contoured on their mutually facing sides as seen from above in the crenellated shape, ie with protruding pinnacles 16, between which support rail sections 17 lesser projection remain. The step size of the battlements 16 essentially corresponds to the desired installation spacing of the sleepers 2 on the track bed 3, as will be explained later; For different installation distances accordingly support rails 13 can be used with different Zinnenschrittweite. The projection of the battlements 16 and the support rail sections 17 remaining therebetween has such a degree that in the completely retracted position of the mounting rails 13 (FIG. 11) all sleepers 2 of a layer 12 are grasped at their ends. By moving apart of the support rails 13 to a first stage, in which the ends of each second threshold. 2 - S - can pass between the battlements 16, every second threshold 2 is placed on the track bed 3 (Fig. 12). By subsequently moving the support rails 13 further apart to a second step, in which the remaining sleepers 2 can pass through the pinnacles 16, the remaining sleepers 2 are subsequently deposited on the track bed 3 (FIG. 14).

In order to prevent slippage of the resting on the support rails 13 sleepers 2 when moving apart of the support rails 13, the device 1 has a fixing rail 18 which can be lowered by means of a hydraulic cylinder 19 on the top of the sleepers 2, and preferably in exactly for the later inclusion of a rail provided grooves of rail clips, if such are prefabricated on the sleepers 2 (not shown). To prepare the sleepers 2 for the settling operation, the device 1 is further equipped with a pushing device 20 (FIG. 8). The sliding device 20 comprises at one end of the support rails 13, a movable stop in the form of two pivot hooks 21 which are actuated by hydraulic cylinders 22, and at the other end of the support rails 13, a slide 23 which is driven by a hydraulic cylinder 24. By lowering the pivot hooks 21 and retracting the slider 23, the recorded on the support rails 13 sleepers 2 are brought into close mutual contact. As a result, they are aligned exactly parallel to one another and receive a defined position for the further settling process.

The pivoting hooks 21 and / or the slide 23 can also be used to "pick up" the outermost to be gripped thresholds 2 when picking up a layer 12 from the stock 10 before retracting the mounting rails 13 so far that a sufficient distance to the adjacent thresholds 2 is provided to ensure the correct retraction of the mounting rails 13 and lifting the layer 12.

The sleepers 2 which are pushed together with the aid of the sliding device 20 could be lowered directly from this position. in which case the laying distance corresponds to a threshold width. In order to also allow other installation distances, the device 1 is further equipped with a spacer device 25 (FIG. 9). The spacing means 25 comprises, in the example shown, two chain-like ("linked") rows 26 of sliding teeth 27 which project downwardly and engage in the triangular spaces of the trapezoidal sills 2 shown (Figures 4, 5) For better clarity, only one row 26 is shown in Fig. 1, but it will be understood that the apparatus 1 is substantially mirror-symmetrical.

The spacing device 25 with the two rows 26 of slider teeth 27 is drivable by means of hydraulic cylinders 28 from a raised position (FIG. 3) to a lowered position in which the sliding teeth 27 engage between the sleepers 2.

The construction of the rows 26 of sliding teeth 27 is shown in Figs. 4 and 5 in detail. The sliding teeth 27 are connected in the manner of chain links via Kettelemente 27 'each with play, so that they are of a close-fitting position

4 and 5) can be brought into a spaced-apart position (as shown in FIGS. 4 and 5) when the row 26 is pulled apart. The play 29 of the elements 27 'is adjustable, for example continuously by adjusting screws or stepwise by insertable or einschwenkbare catches, etc., so that the achievable with maximum utilization of the games 29 mutual distance of the sliding teeth 27 and thus the thresholds 2 is accordingly pre-selectable, eg continuously in the range of 0 - 50 mm or stepwise to the values of 0, 20 ^' or 40 mm. To pull apart the rows 26 of sliding teeth 27 serve hydraulic cylinders 30, each of which acts between the carrier 4 and one end of the row 26 (FIGS. 1, 2). The method of the invention will now be explained using the apparatus described with reference to the sequence shown in Figs. 6 to 14.

In a first step, a layer 12 of sleepers 2 is received by the supply 10, for which purpose the crane 8 moves to the goods wagon 11 and lowers the device 1 until it rests on the support rails 15. The pivoting hooks 21 are swung down to grip the outermost of the sleepers 2 to be received, and the support rails 13 are retracted until they grip the ends of all the sleepers 2 to be received, after which the device 1 is raised (Figs. ,

Optionally, the sleepers 2 accommodated on the mounting rails 13 are now pushed together with the aid of the sliding device 20 (FIG. 8) and subsequently, likewise optionally, brought into a predefined mutual distance with the spacing device 25 (FIG. 9). Simultaneously or subsequently, the crane 8 moves to a first section 31 of the track bed 3 (FIG. 10).

Now, in a first installation step, the support rails 13 are moved apart until each second threshold 2 can pass between the pinnacles 16 and slides on the track bed 13 (FIGS. 11, 12).

In a second installation step, the device 1 is moved with the sleepers 2 remaining on the carrier rails 13 over a further section 32 of the track bed 3 (FIG. 13). About the second portion 32, the support rails 13 are moved further apart until the remaining thresholds 2 can pass the battlements 16 and lie down on the track bed 3 (Fig. 14). The apparatus and method of the invention are also suitable for more than two laying steps, for example three, four or generally speaking laying steps (n = 2, 3, 4 etc.). In the case of, for example, n = 3, every third ("nth") threshold is thus stored in the first step, ie the thresholds Nos. 1, 4, 7 etc., in the second step then approximately the same number remaining sleepers as before at the same intervals, ie the sleepers Nos. 2, 5, 8, etc., and in the third step then the remaining sleepers Nos. 3, 6, 9, etc. FIG. 15 shows an alternative embodiment of mounting rails 13 for a Such three-stage settling with correspondingly stepped cantilevered battlements 16, 16 '.

The invention is not limited to the illustrated embodiments, but includes all variants and modifications that fall within the scope of the appended claims.

Claims

Claims:

1. Device (1) for laying sleepers (2) on a track bed (3), comprising a crane-mountable carrier (4), the receiving and Absetzzeinrichtungen for a layer (12) adjacent sleepers (2), wherein the receiving means two parallel support rails (13) are formed, which are mounted on the support (4) movable towards each other to engage the ends of the sleepers (2) for receiving, characterized in that the settling means formed by the same support rails (13) are, which are movable apart for settling of the thresholds (2), wherein the support rails (13) are contoured on its sides facing each other from the top as viewed in opposite crenellated.

2. Apparatus according to claim 1, characterized in that the battlements (16, 16 ') of a support rail (13) protrude in periodic succession stepwise different.

3. Apparatus according to claim 1 or 2, characterized in that it has a on the thresholds (2) of a aufgegene- nen layer (12) lowerable Fixierschiene _. (18) to fix during settling the thresholds (2) during the apart movement of the support rails (13) in the threshold longitudinal direction.

4. Device according to one of claims 1 to 3, characterized in that it comprises a sliding means (20) for gathering together one of the support rails (13) received layer (12) of sleepers (2).

5. Apparatus according to claim 4, characterized in that the sliding device (20) comprises at least one engageable in and out of operative position stop (21) for one side and a movable slide (23) for the other side of a recorded position (12).

6. Device according to one of claims 1 to 5, characterized in that it can be introduced between the sleepers (2) distance means (25) for defined mutual Bending the thresholds (2) a recorded layer (12).

7. Apparatus according to claim 6, characterized in that the spacing means (25) comprises at least one game-linked row (26) of sliding teeth (27) which, after their introduction between the sills (2), to the maximum utilization of their Games (29) are extendable to space the sleepers (2) from each other.

8. Apparatus according to claim 7, characterized in that the games (29) are adjustable.

9. Device according to one of claims 1 to 8, characterized in that the support rails (13) and - if present - the Fixierschiene (18), the sliding device (20) and the spacer means (25) by means of GE on the carrier (4) - Lagerter hydraulic cylinder (14, 19, 22, 24, 30) are actuated, preferably controlled by a process control process.

10. A method for laying sleepers from a supply in which they are substantially close together, at intervals on a track bed, preferably using a device according to one of claims 1 to 9, comprising the steps of: a) receiving a layer (12 b) moving the ply (12) over a first section (31) of the track bed (3), c) depositing each nth threshold (2) of the ply (12) on the first section (31), where n = 2, 3, 4, etc., d) transferring the sleepers (2) remaining in the ply (12) over a further section (32) of the track bed (3), e) settling about the same number of thresholds (2) as in step c) at the same intervals as in step c) on the further section (32), and f) repeating steps d) and e) until all thresholds have been discontinued, characterized that the recording in step a) by pushing together two counter-crenellated contoured support rails (13) under the ends of the sleepers (2), the settling in step c) by pulling the support rails (13) until every n-th threshold (2) between the crenellations (16, 16 ') passes, and settling in the step (s) e) by gradually further pulling apart the support rails (13) until each of the further sleepers (2) the battlements (16, 16') happen, happens.

11. The method according to claim 10, characterized in that before, in or after step b) the thresholds (2) in the position (12) are first pushed together tightly and then pulled apart to a predefined distance.