EP0731217B1 - Tamping machine, assembly and method for tamping a railway track - Google Patents

Description

The invention relates to a method for stuffing a track, wherein a tamping in a first operation with respect to the working direction a threshold group and in a subsequent process a tamping of the remaining ones that were skipped during the first operation Thresholds is carried out.

A tamping machine or machine arrangement for performing such The method is already known from US Pat. No. 5,379,700. This specifically Machine arrangement designed for processing turnout sections consists of a tamping machine with a multiple tamping unit as well as an additional tamping machine with a single-sleeper tamping unit together. Immediately before starting work Additional tamping machine uncoupled from the tamping machine and by one move your own travel drive independently. With the tamping machine those sleeper supports compacted in both the main and branch track, where the tamping ax can be quickly and easily immersed in the ballast are. Those not blocked by the multiple tamping unit of the tamping machine Threshold supports are then moved through the independently movable Additional tamping machine tamped without lifting the track. This combination also enables switch sections with a powerful one Stuff the multiple tamping unit.

US Pat. No. 3,744,428 also makes one of two in the machine longitudinal direction tamping machine formed one behind the other known, with each machine frame assigned a multiple tamping unit is. The tamping unit that follows in the working direction is in the machine longitudinal direction slidably mounted. The cramping becomes like this carried out that after tamping two neighboring sleepers by the front multiple tamping unit skips the entire machine two sleepers is advanced by a total of four sleepers. The in this way not blocked by the front multiple tamping unit Finally, sleepers are each caused by the subsequent multiple tamping unit supports. According to an embodiment variant according to FIG. 7 it also known each of the two machine frames instead of a multiple tamping unit to assign two single-tamping units. This are each at a distance from each other corresponding to a threshold distance distant. To compensate for different threshold distances each tamping unit can be moved in the machine longitudinal direction on the machine frame stored. Additional tamping machines with two multiple tamping units are known from U.S. Patents 4,224,874, 3,595,170 and 3,494,297.

The object of the present invention is to create a Procedure of the type described in the introduction with which an accurate and permanent Track position can be combined with a particularly high tamping performance.

This object is achieved according to the invention with a method of the generic type Art solved in that the first operation - as a group stop designated - a total of at least five consecutively arranged Threshold section in question includes, under Correction of the height and side position of the track only one of a single middle threshold immediately upstream group of sleepers and a group of. directly subordinate to this central threshold Thresholds are simultaneously supported, and that in the subsequent operation - referred to as residual congestion - that in group congestion skipped or not stuffed middle threshold of each threshold section is stuffed.

The two-stage tamping process according to the invention results in a special one high tamping performance, the remaining tamping to avoid a possible Influencing the corrected track position to a minimum is. It is particularly advantageous that due to the central positioning the threshold between which is not at least two stuffed sleepers each provide the best possible protection the track position correction already carried out in the first darning stage is ensured.

The invention also relates to a tamping machine for simultaneous tamping a plurality of sleepers on a track, consisting of one on Machine frames supported on bogies, two each for simultaneous tamping of at least two sleepers and multiple tamping units arranged one behind the other in the machine longitudinal direction, a track lifting and straightening unit, as well as a reference system to carry out track position corrections, with the distance two adjacent in the machine longitudinal direction - in their starting position to be plugged - and to each other by an auxiliary drive optional tamping pick of each multiple tamping unit a threshold distance is defined. The invention is that the two in the machine longitudinal direction adjoining tamping pick of the two multiple tamping units at a distance corresponding to a threshold distance are distanced from each other, and that a first track lifting and straightening unit arranged between the two multiple tamping units and a second track lifting and straightening unit the front in the working direction Multiple tamping unit is immediately upstream of the tamping machine, whereby between the two multiple tamping units by feeler rollers on Track that can be unrolled and is adjustable in height is arranged, that via sensors with a reference line of the reference system in connection stands.

Such a design of a tamping machine allows under advantageous Inclusion of already well proven in long-term assignments A very important tamping unit without changing its design Performance increase in connection with a precise and permanent track position. The special distance between the two multiple tamping units is the ideal solution in that, on the one hand, it is not yet a constructive one Problems or mutual interference due to an arrangement that is too close occur and on the other hand none - from a greater distance resulting - problematic track fixation is expected. There now that raised by the track lifting and straightening unit in the target position Track simultaneously supported in the area of at least four sleepers and thus permanently fixed, is despite the in the distance range refrain from tamping the central one with two multiple tamping units Threshold to maintain the track position accuracy Implementation of the remaining single-threshold tamping ensured. The Additional tamping machine can be designed to be particularly simple in terms of construction, since only the arrangement of a single sleeper tamping unit without any additional equipment is required.

The invention also relates to a machine arrangement for stuffing of a track with a tamping machine and is characterized by another additional tamping machine that can be moved independently with its own travel drive with a single-threshold tamping unit that is height-adjustable by a drive for tamping a single threshold, the two machines through a coupling device for a common Transfer travel are interconnected.

This machine arrangement has the advantage that it is already in use Small tamping machines as additional tamping machines for implementation the remaining tamping can be used. It can also work with each other independent traversability the higher performance of the upstream tamping machine optimally exploited without taking into account the remaining congestion become.

Further advantageous developments result from the subclaims.

The invention is illustrated below with reference to the drawing Embodiments described in more detail.

Fig. 1 eine Seitenansicht einer Maschinenanordnung, die sich aus einer in Arbeitsrichtung vorgeordneten, zwei Mehrfach-Stopfaggregate aufweisenden Stopfmaschine und einer nachfolgenden Zusatz-Stopfmaschine zusammensetzt,

Fig. 2 und 3 in vergrößerter Form einen vorderen bzw. hinteren Abschnitt der Maschinenanordnung gemäß Fig. 1,

Fig. 4 eine Variante eines Stopfaggregate tragenden Arbeitsrahmens,

Fig. 5 ein weiteres Ausführungsbeispiel einer Stopfmaschine in Seitenansicht, wobei die Zusatz-Stopfmaschine als trailerförmiger Anhänger ausgebildet ist,

Fig. 6 ein weiteres Ausführungsbeispiel in einer Teil-Seitenansicht, wobei die beiden Stopfmaschinen durch einen Längsverschiebeantrieb miteinander verbunden sind, und

Fig. 7 eine Teil-Seitenansicht einer Stopfmaschine in einer weiteren Ausführungsform.

Show it:

1 shows a side view of a machine arrangement which is composed of a tamping machine which is upstream in the working direction and has two multiple tamping units and a subsequent additional tamping machine,

2 and 3 in enlarged form a front and rear portion of the machine arrangement according to FIG. 1,

4 shows a variant of a working frame carrying tamping units,

5 shows a further embodiment of a tamping machine in a side view, the additional tamping machine being designed as a trailer-shaped trailer,

Fig. 6 shows another embodiment in a partial side view, wherein the two tamping machines are connected to each other by a longitudinal displacement drive, and

Fig. 7 is a partial side view of a tamping machine in a further embodiment.

The machine arrangement 1 shown in FIG. 1 for stuffing Thresholds 22 of a track 2 consist of one with respect to the working direction (Arrow 3) upstream tamping machine 4 and a subsequent one Additional tamping machine 5 together. Both tamping machines 4,5 are through a coupling device 6 releasably connected to each other.

The tamping machine 4 which can be moved on rail bogies 11 - also as To designate main tamping machine - has one out of two by a joint 7 interconnected parts 8, 9 formed machine frame 10 on the driver's cab 12 are assigned at the end. A drive unit 13 to power the various drives is located on the rear, Trailer-shaped part 9 of the machine frame 10. Between the two rail bogies 11, which are bridge-shaped Support part 8 of the machine frame 10 is one in the machine longitudinal direction extending work frame 14 is provided. This supports itself with his rear end via a rail undercarriage 15 directly from track 2, while a front end 16 in a bearing 17 of the machine frame 10 is mounted for longitudinal displacement. By a sliding drive 66 is one Relative displacement in the machine longitudinal direction between the work frame 14 and machine frame 10 feasible. On the work frame 14 are two in Multiple tamping units arranged one behind the other in the machine longitudinal direction 18,19 attached, each for simultaneous tamping of two immediately adjacent sleepers 22 as two-sleeper tamping units are trained.

As can be seen in particular in the enlarged illustration according to FIG. 2, each multiple tamping unit 18.19 has four in Machine longitudinal direction arranged one behind the other with tamping pick 20 provided tamping tools 21 for simultaneously tamping two immediately adjacent thresholds 22. The by a vibration drive 23 vibrating stuffing tools 21 are each by its own Add-on drive 24 can be provided to carry out the tamping to one another. Two in their starting position to perform the tamping located and can be provided with each other tamping pick 20 each a pair forming tamping tools 21 are at a threshold distance a from each other distant. The two adjoining each other in the machine longitudinal direction Tamping pick 20 of the two adjacent multiple tamping units 18, 19 are also - with regard to their position immediately before the cramming at a distance corresponding to a threshold distance a. Drives 25 adjust the height of the two multiple tamping units 18.19 feasible.

There is a drive between the two multiple tamping units 18, 19 26 height and transverse adjustable track lifting and straightening unit 27 arranged or connected to the work frame 14. Located in this area there is also a rollable roller 28 on the track 2 and height-adjustable feeler 29 of a reference system 30. This Stylus 29 stands over a sensor 31 with a tensioned Tendon-formed reference line 32 of the reference system 30 in connection. The front multiple tamping unit 19 in the working direction is a second one Track lifting and straightening unit 27 immediately upstream.

In a connected to the machine frame 10 and via the rail chassis 15 of the work frame 14 projecting work cabin 33 is a Central control device 34 for controlling the two multiple tamping units 18,19 and the two track lifting and straightening units 27 housed. For a continuous feed of the machine frame 10 travel drives 35 are provided. To identify the first The tamping process is achieved by simultaneously tamping four sleepers 22 can also be described as group congestion, by the two Multiple tamping units 18, 19 threshold 22 not tamped is a marking device 36, e.g. for spraying paint in combination with a Threshold button 37 provided.

As can be seen in particular in FIG. 3, the additional tamping machine 5 a machine frame 39 supported on rail bogies 38. This is cranked upwards between the two rail carriages 38 formed and arranged by an upper, inclined at an angle to the track level Outline plane 40 limited. The inclination of this outline plane is 40 such that their distance from an upper rail edge 41 at one - to Connection to the tamping machine 4 provided - end 42 of the machine frame 39 at most 3.5 meters and at the opposite end at most Is 2 meters.

Between the two rail carriages 38 of the additional tamping machine 5 is just a single-sleeper tamping unit 43 and a work booth 44 provided with a control device 45. The working cabin 44 is the same like the single-sleeper tamping unit 43 cranked upwards below one trained and inclined to the track level section 46 of the machine frame 39 arranged. The height adjustable by a drive 47 Single-threshold tamping unit 43 is provided with tamping picks which can be provided with respect to one another 48 equipped for tamping a single threshold 22. The additional tamping machine 5 is a detector 49 for automatic detection of a 50 designated threshold marker assigned. On in the working direction rear end of the additional tamping machine 5 is a height adjustable and by a drive 51 rotatable sweeping brush 52 with a cross conveyor belt 53 arranged. For the energy supply of the various drives as well a drive 55 serves a motor 55.

The following is the operation of the machine arrangement described 1 explained in more detail:

The machine arrangement 1 is expediently coupled with the Additional tamping machine 5 to the tamping machine 4 together to the site method. As soon as this is reached, the additional tamping machine 5 of the tamping machine 4 uncoupled. With the front tamping machine in the working direction 4 is now carried out by loading the drive 35 continuous forward movement of the machine frame 10 during the Working frame 14 together with the multiple tamping units 18, 19 by intermittent Actuation of the sliding drive 66 gradually from Darning to darning is moved forward. Once the work frame 14 locally stands still, there is a simultaneous action on the drives 25 Lowering both multiple tamping units 18, 19 for simultaneous tamping two threshold pairs, between which a central threshold 22 lies, which is not supported with this group congestion. Right away before the group capping is carried out by using the two track lifting and straightening units 27 in connection with the reference system 30 a possibly necessary track position correction. After simultaneous tamping of the four thresholds 22 in total two multiple tamping units 18, 19 in turn raised and together with the work frame 14 under the action of the sliding drive 66 by a distance corresponding to five times the threshold distance a moved forward (see arrows 56). There begins again with lowering of the two multiple tamping units 18, 19 the described tamping cycle for simultaneous tamping of a total of four sleepers 22.

With the lowering of the two multiple tamping units 18, 19, this is preferred Non-contact threshold switch 37 for threshold counting activated. As soon as it did not stop at the above mentioned tamping central threshold 22 to lie in the region of the marking device 36 comes, it is automatically activated. This does not stop the above mentioned Threshold 22 for identification sprayed with paint, resulting in a Threshold mark 50 is formed. In this context it is natural any known type of threshold marker, e.g. a corresponding Magnetization of the rail area assigned to the threshold 22 or the like, conceivable. The threshold marking 50 can of course also be direct in the area between the two multiple tamping units 18, 19 be performed.

As soon as the operator in the work cabin 44 has a Threshold mark 50 registered, the additional tamping machine 5 under Centering the single-sleeper tamping unit 43 above that with the sleeper marking 50 provided threshold 22 stopped. Under charge the drives 47 of the two each associated with a rail 57 of the track 2 Single-threshold tamping units 43 are also used as residual tamping Understooding to be designated in the case of group stopping Threshold 22 not blocked by the upstream tamping machine 4. The remaining obstruction is achieved in the control device 45 preselected tamping pressure, the tamping pick 48 in the auxiliary drives 58 is registered, ended. As the track 2 is not raised, it remains with the simultaneous tamping of four sleepers 22 completely corrected track position unaffected. Alternatively, the machine's right of way can also be stopped automatically as soon as the detector 49 registers a threshold marking 50 Has.

The exemplary embodiments described below have the same function For simplicity, parts have the same reference numerals as designated in the embodiment of FIGS. 1 to 3.

The embodiment variant shown in FIG. 4 differs in comparison to the variant described above in that the working frame 14 at both longitudinal ends by its own rail undercarriage 15 on Track 2 supports. The relative displacement between machine frames 10 and the work frame 14 is carried out under the action of the displacement drive 66 in connection with a travel drive 59 of the rail undercarriage 15.

As can be seen in another example in FIG. 5, the tamping machine settles 4 from two machine frames connected by a joint 60 10.39 together, the following trailer-shaped in the working direction and the single-sleeper tamping unit 43 having machine frames 39 forms the additional tamping machine 5. The single-sleeper tamping unit 43 is on horizontal and longitudinal machine guides 61 slidably mounted and connected to a longitudinal displacement drive 62. The two multiple tamping units 18, 19, each for simultaneous Bottom plugs of two sleepers 22 are formed directly on the machine frame 10 arranged.

This tamping machine 4 or machine arrangement 1 is gradually from Move darning to darning, taking the distance between the successive Darning points corresponds to five times the threshold distance a. While with the two multiple tamping units 18.19 in the context of Group tamping the simultaneous tamping of four sleepers 22 is carried out in parallel with the downstream single-threshold tamping unit 43 the remaining underfilling of those not underfilled with group underfilling Single threshold carried out. Immediately before the tamping the single-sleeper tamping unit 43 is automatically above the one to be tamped Threshold 22 centered. This is through one with the control device 34 connected odometer 63 achievable, which automatically with the lowering of the two multiple tamping units 18, 19 with the distance measurement begins.

The tamping machine 4 or machine arrangement 1 shown in FIG. 6 has a displacement drive 64 as a coupling device between the two Machine frame 10.39. With the help of this displacement drive 64 can there is a slight change in distance between the multiple tamping units 18,19 on the one hand and the single-sleeper tamping unit 43 on the other to center it over the individual threshold to be tamped to enable. Each multiple tamping unit 18,19 is for simultaneous tamping of three directly in the machine longitudinal direction adjacent sleepers 22 equipped with three pairs of tamping pick 20. The entire machine arrangement 1 is covered by traveling a distance, which corresponds to a seven-fold threshold distance a, gradually method. It would of course also be possible as a multiple tamping unit 18, 19 a two-sleeper tamping unit with a three-sleeper tamping unit to combine.

Finally, FIG. 7 shows a further variant of a tamping machine 4 or a machine arrangement 1, in which the additional tamping machine 5 has a trailer-shaped machine frame 39. This is longitudinally displaceable at the rear end of the machine frame 10 the tamping machine 4 is supported and by means of a displacement drive 65 longitudinally displaceable.

Claims (20)

1. A method for tamping a track, in which a group of sleepers is tamped in a first working procedure, with respect to the working direction, and the remaining sleepers which were left out in the first working procedure are tamped in a further, following working procedure, characterized in that the first working procedure - called group tamping - covers a sleeper section involving a total of at least five consecutive sleepers, during which, with correction of the vertical and lateral geometry of the track, only a group of sleepers immediately preceding a single middle sleeper and a group of sleepers immediately following this middle sleeper are tamped simultaneously, and in that in the following working procedure - called residual tamping - the middle sleeper of each sleeper section which was left out or not tamped during the group tamping is tamped.
2. A method according to claim 1, characterized in that a correction of the track geometry is carried out only in combination with the group tamping.
3. A method according to claim 1 or 2, characterized in that the single sleeper tamping unit (43) is automatically centred over the sleeper (22) to be tamped in dependence on the distance covered by the machine's advance and is lowered to perform the tamping operation.
4. A method according to one of claims 1, 2 or 3, characterized in that the residual tamping is automatically terminated when a preselectable tamping pressure is reached.
5. A tamping machine (4) for simultaneously tamping a plurality of sleepers (22) of a track (2), comprising a machine frame (10) supported on on-track undercarriages (11), two multiple tamping units (18,19) designed for simultaneously tamping at least two sleepers (22) respectively and arranged one following the other in the longitudinal direction of the machine, a track lifting and lining unit (27), and also a reference system (30) for implementing track geometry corrections, wherein a sleeper spacing (a) is defined by the spacing apart of two tamping tines (20) - located in their starting position for tamping - of each multiple tamping unit (18,19), the said tamping tines being adjacent in the longitudinal direction of the machine and squeezable together by means of a squeeze drive (24),
   characterized in that the two tamping tines (20) of the two multiple tamping units (18,19), which are adjacent to one another in the longitudinal direction of the machine, are spaced apart from one another by a distance equivalent to a sleeper spacing (a), and in that a first track lifting and lining unit (27) is arranged between the two multiple tamping units (18,19), and a second track lifting and lining unit (27) immediately precedes the front multiple tamping unit (19), in the working direction, of the tamping machine (4), with a tracing element (29) being arranged between the two multiple tamping units (18,19) which is designed to roll along the track (2) by means of tracing rollers (28) and is mounted for vertical adjustment, the tracing element being connected by way of measuring feelers (31) to a reference line (32) of the reference system (30).
6. A tamping machine according to claim 5, characterized in that both multiple tamping units (18,19) are secured to a working frame (14) extending in the longitudinal direction of the machine, the rear end of the said working frame in the working direction being supported directly on the track (2) by means of an on-track undercarriage (15) and its front end (16) being supported for longitudinal displacement by means of a displacement drive (66) on the machine frame (10) of the tamping machine (4).
7. A tamping machine according to claim 6, characterized in that the working frame (14) is supported at both ends on the track (2) by means of respective on-track undercarriages (15) (Fig. 4).
8. A tamping machine according to one of claims 5 to 7, characterized by an auxiliary tamping machine (5) which may be connected in an articulated manner to the machine frame (10) of the tamping machine (4) and has a machine frame (39) which may be supported on on-track undercarriages (38) and which comprises a vertically adjustable single sleeper tamping unit (43) for tamping a single sleeper (22).
9. A tamping machine according to claim 8, characterized in that respective separate motive drives (35,54) are associated with the tamping- and the auxiliary tamping machine (4,5) for mutually independent mobility, and in that both tamping machines (4,5) may be joined together for joint transfer travel by means of a coupling device (6) (Fig. 1).
10. A tamping machine according to claim 8, characterized in that the machine frame (39) forming the auxiliary tamping machine (5) is pivotally connected to the preceding machine frame (10) of the tamping machine (4) by means of an articulation (60) (Fig. 5 to 7).
11. A tamping machine according to claim 10, characterized in that the articulation (60) is designed so as to be displaceable in the longitudinal direction of the machine by means of a displacement drive (65) (Fig. 7).
12. A tamping machine according to one of claims 8 to 11, characterized in that the single sleeper tamping unit (43) of the auxiliary tamping machine (5) is displaceably mounted on a guide (61) extending horizontally and in the longitudinal direction of the machine and connected to the machine frame (39), and is connected to a longitudinal displacement drive (62) (Fig. 5).
13. A tamping machine according to one of claims 8 to 12, characterized in that a drive (47) is designed for vertically adjusting the single sleeper tamping unit (43), and the longitudinal displacement drive (62) is designed for automatic operation by means of a control unit (34) with which an odometer (63) is associated to determine the distance covered by the tamping machine (4).
14. A tamping machine according to one of claims 5 to 13, characterized by a marking device (36) to mark a sleeper (22).
15. A tamping machine according to claim 14, characterized in that a sleeper sensor (37) is associated with the marking device (36) for automatically effecting a sleeper marking (50).
16. A tamping machine according to one of claims 8 to 15, characterized in that a detector (49) is associated with the auxiliary tamping machine (5) for automatically detecting a sleeper marking (50) and initiating a tamping operation.
17. A tamping machine according to one of claims 8 to 16, characterized in that the machine frame (39) of the auxiliary tamping machine (5) is bounded by an upper contour plane (40) whose distance from the top (41) of the rail at one end (42) of the machine frame (39) - provided for the connection to the tamping machine (4) - is a maximum of 3.5 metres and at the opposite end a maximum of 2 metres.
18. A tamping machine according to one of claims 8 to 17, characterized in that a sweeping broom (52) which is rotatable by means of a drive (51) is associated with the rear end of the auxiliary tamping machine (5), in the working direction.
19. A tamping machine according to one of claims 17 or 18, characterized in that provided between the two on-track undercarriages (38) of the auxiliary tamping machine (5) are merely the single sleeper tamping unit (43) and an operator's cabin (44), the operator's cabin (44) and the single sleeper tamping unit (43) being arranged beneath a portion (46) of the machine frame (39) which is designed so as to be upwardly recessed.
20. A machine arrangement (1) for tamping a track (2) with a tamping machine (4) according to claim 5, characterized by a further, auxiliary tamping machine (5), designed for independent mobility with its own motive drive (54) and comprising a single sleeper tamping unit (43) which is vertically adjustable by means of a drive (47) for tamping a single sleeper (22), wherein the two tamping machines (4,5) may be joined together by means of a coupling device (6) for combined transfer travel.

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