EP0185834B1 - Track reconditioning apparatus with at least one pneumatic device for blowing bedding material - Google Patents

Track reconditioning apparatus with at least one pneumatic device for blowing bedding material Download PDF

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Publication number
EP0185834B1
EP0185834B1 EP84890224A EP84890224A EP0185834B1 EP 0185834 B1 EP0185834 B1 EP 0185834B1 EP 84890224 A EP84890224 A EP 84890224A EP 84890224 A EP84890224 A EP 84890224A EP 0185834 B1 EP0185834 B1 EP 0185834B1
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EP
European Patent Office
Prior art keywords
drive
track
machine
designed
ballast
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84890224A
Other languages
German (de)
French (fr)
Other versions
EP0185834A1 (en
Inventor
Josef Theurer
Friedrich Peitl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Franz Plasser Bahnbaumaschinen Industrie GmbH
Original Assignee
Franz Plasser Bahnbaumaschinen Industrie GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Franz Plasser Bahnbaumaschinen Industrie GmbH filed Critical Franz Plasser Bahnbaumaschinen Industrie GmbH
Priority to AT84890224T priority Critical patent/ATE31760T1/en
Priority to DE8484890224T priority patent/DE3468461D1/en
Priority to EP84890224A priority patent/EP0185834B1/en
Publication of EP0185834A1 publication Critical patent/EP0185834A1/en
Application granted granted Critical
Publication of EP0185834B1 publication Critical patent/EP0185834B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/12—Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast
    • E01B27/13—Packing sleepers, with or without concurrent work on the track
    • E01B27/16—Sleeper-tamping machines
    • E01B27/18—Sleeper-tamping machines by introducing additional fresh material under the sleepers, e.g. by the measured-shovel method, by the blowing method
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2203/00—Devices for working the railway-superstructure
    • E01B2203/06—Placing ballast
    • E01B2203/067—Special methods for posing or quantifying ballast

Definitions

  • the invention relates to a mobile track correction machine, with a track lifting device provided on the machine frame, which can be acted upon by a drive using a reference system, and at least one blower unit with a supporting frame connected to the machine frame for at least one, in the ballast bed on the left and right of the rail on one
  • the blowing-in tube can be immersed and fed with the bedding material from a storage container for blowing in additional bedding material, such as gravel, grit or the like, which has an outlet opening in the area of its tapered lower end on its flattened side facing the threshold is designed to be height-adjustable via a drive connected to a control device and wherein a metering device connected to a drive is connected between the storage container and the blowing pipe - for delivering a Sc hotter crowd - is arranged.
  • blowing process takes a relatively long time due to the slow vibration of the bedding material to the annular gap.
  • a mechanical application of blowing devices designed in this way is also not possible for the reasons mentioned.
  • a manually operated blowing device for fixing to sleeper and rail in which every second sleeper compartment has to be cleared beforehand and the sleepers have to be raised to their correct level in order to blow the ballast then determine.
  • This device has on its gravel container a slot covered by a transparent plate, which lies next to a scale, the digits of which rise from top to bottom, so that the amount of gravel blown in under a threshold can be determined subsequently.
  • This device too, is not suitable for mechanical use in view of the very time-consuming and cumbersome process.
  • a complete and uniform filling of the ballast-free space below the raised threshold is not always achievable in addition to the disadvantage of the strong dust development, since a pressure equalization takes place between the injected and the ambient air via the largely open side of the injection pipe and essentially only the purely dynamic effect of the Compressed air jet transported the stones into the cavity under the threshold.
  • the centering of the injection tube that can be advanced step by step from threshold to threshold in order to immerse it directly next to the threshold into the ballast bed - without damaging the threshold or other track components - is very difficult, especially in comparison to a plunge into the ballast bed Stuffing tool with work-side movement, even more difficult - since the blowing pipe has to be lowered into the sleeper compartment exactly or only a few millimeters away from the sleeper.
  • a mobile track correction machine with a track lifting device which can be acted upon by a drive and a device for blowing in additional bedding material, such as ballast, grit or the like, is under the raised sleepers in the area of intersection with the respective rail.
  • the track lifting device which can be acted upon by means of a reference system or a track height position measuring device is designed for raising and lowering and is connected to a device for measurable raising of the track.
  • the blowing device has one in the ballast bed on the left and one on the right
  • Each injection pipe for which the bedding material can be pressurized with compressed air has an outlet opening in the area of its tapered lower end on the flattened side facing the sleeper, the cross section of which is only slightly larger than the passage cross section of the entire injection pipe.
  • the two injection tubes which are height-adjustable with the support part, also have a stop which is provided for limiting the depth and which can be supported on the raised track, in order to be able to better center the blowing tube against the threshold to be machined when the machine provided with the blowing unit is gradually advanced.
  • the blowing-in pipe and / or also the abutment is also resiliently mounted on the support part which is height-adjustable on the machine frame.
  • a metering device connected to a drive is provided between the storage container and the blow-in pipe - for dispensing a quantity of ballast measured in accordance with the desired lifting dimension.
  • the metering device consists of a metering cylinder which is open on the upper side towards the storage container and on the underside towards the injection tube, is arranged essentially horizontally and cooperates with a metering piston, in which a hollow cylindrical closure part is rotatably mounted and with a cutout corresponding to the openings of the metering cylinder.
  • This track correction machine is therefore largely geared to a real and essentially trouble-free machine application in connection with the metering device, the control device, the reference system for the track height measuring device and the device for measurable lifting of the track.
  • the invention is based on the object of creating a mobile track correction machine of the type described at the outset, with which the blow unit and the blow-in pipes are brought closer and more precisely to the point to be processed in the track or better to the threshold or the track construction or the often changing operating conditions can be adapted. Furthermore, the performance or economy should also be improved with such a machine.
  • the blowing unit has a support frame with the two blowing tubes which are adjustable in height, which is connected to a drive for adjustment in the transverse direction of the track, and in that each blowing tube is independently adjustable in height and length is formed and is each connected to its own height and track longitudinal adjustment drive, and is connected to its own metering device which can be acted upon by a drive, the control device being designed to act independently of each other on the drives of each injection tube and each metering device.
  • the invention thus enables, for the first time, the surprisingly simple and yet very precise centering or delivery to the desired location in the track, which is located directly next to the sleeper side or the rail, due to the independent height and in particular longitudinal adjustment of the individual injection tubes.
  • This can be done without damaging any track parts, e.g. an inclined threshold, a targeted lowering of each individual blowing tube can be achieved.
  • Even in track bends or when changing track widths or in switches, the transverse adjustment of the blower unit always enables safe and quick centering or precise approach to the rail. The overall work progress is also increased.
  • a blowing unit is provided on the machine frame, which is assigned to each rail and is independently adjustable in the transverse direction of the track via a drive designed as a hydraulic cylinder-piston arrangement, each with - for immersion in the ballast bed on the left and to the right of the respective rail on the respective outer longitudinal side of two immediately adjacent sleepers - thus a total of four independently adjustable and longitudinally adjustable blowing tubes.
  • blowing units which can be adjusted independently and individually in the cross-track direction
  • the total of eight blowing tubes which can be adjusted independently of each other in height and in the longitudinal direction, for simultaneous processing of two neighboring sleepers, not only is a particularly high level of work progress achieved, but all individual blowing tubes can also be used without mutual Disability and without damaging any track parts to the desired location in the track for safe and accurate lowering in the respective sleeper compartment or centered.
  • each blowing unit with its support frame is displaceably mounted on transverse guides of the machine frame and is articulated in each case with the hydraulic cylinder-piston drive, which can be acted upon with double action, and that each blowing tube is in each case connected to one, to one Track level running vertically - consisting of two columns parallel to each other - Height guidance designed and provided on the support frame, parallel to the track level and in the longitudinal direction of the track - also from two mutually parallel Hori zontal pillars existing longitudinal guide is displaceable intermediate carrier, and is connected to a double-acting hydraulic cylinder-piston height or track length adjustment drive.
  • This design is simple in construction and ensures through the respective longitudinal displacement in connection with the vertical and longitudinal guides, but also the longitudinal displacement of the two blowing units, a particularly precise and reliable adjustability of each individually adjustable blowing tube.
  • the height and length guides which are expediently formed with a round cross section, with the associated intermediate supports of two injection pipes which are adjacent in the track direction or arranged one behind the other in the direction of the track direction, to the respective longitudinal or leading through the blowing unit Transversely central vertical plane mirror-symmetrical to each other.
  • the stroke length of the longitudinal rail adjustment drive assigned to the blowing pipe or the longitudinal guide on the support frame can be dimensioned at least in accordance with the sleeper compartment width or the sleeper spacing. This ensures that even with inclined sleepers, each injection pipe can still be reliably lowered into the scrap directly next to the sleeper to be processed without damaging it.
  • a particularly advantageous embodiment of the invention is characterized in that each longitudinal guide of a blow unit designed for the simultaneous processing of two adjacent sleepers is dimensioned at least in accordance with the size of a sleeper distance, the two mutually facing ends of the two longitudinally arranged one behind the other in the longitudinal direction of the track Guides are arranged at a distance from each other that is at least equal to or greater than twice the width of a threshold.
  • This design ensures a safe centering or infeed movement to the desired immersion point of each injection tube, even if both neighboring sleepers are not precisely laid, but are, for example, at an angle. With this training, double sleepers can also be processed without additional facilities or additional work.
  • a particularly preferred embodiment of the invention is characterized in that a device for centering the associated blowing pipe against the threshold or threshold edge is provided for each longitudinal track adjustment drive, which device is connected to a control block of the control device and upon touching the threshold. by means of the non-return cylinder-piston arrangement which can be actuated against this longitudinally adjustable injection tube.
  • the preferably hydraulically loadable non-return cylinder-piston arrangement of the centering device is connected to a solenoid valve that can be controlled by signaling a ⁇ depressurized ⁇ switch - for a centering or resetting movement by the longitudinal adjustment drive.
  • a preferred feature of the invention consists in the fact that the non-return cylinder-piston arrangement - for the optional setting of different restoring mass - as a double-piston non-return cylinder (eg for wooden or concrete sleepers) with two different volumes, with the solenoid valve above Lines connected cylinder chambers - is formed.
  • This design advantageously enables adaptation to different track conditions or track constructions, e.g. Tracks with different threshold spacings that differ from the average or sleepers with different cross-sectional shapes.
  • a further preferred embodiment of the invention consists in that each metering device which can be acted upon by its own drive consists of a cylindrical housing with a screw conveyor which can be acted on by the drive, a common one arranged above the individual, a total of eight metering devices and with ballast from Storage container is provided over a laterally pivotable conveyor belt feedable ballast distribution dome.
  • This design ensures that each blowing pipe receives the exact, desired amount of ballast that is to be introduced below the threshold.
  • the arrangement of a ballast dome brings the advantage of a relatively central material feed with simple and better conveying to the individual metering devices.
  • a particularly advantageous embodiment according to the invention is characterized in that the preferably hydraulically actuated drive of each metering device via a pulse counter for controlling the optionally corresponds According to the desired or required amount of ballast volume, adjustable screw revolutions can be applied and that the cylinder housing is designed with a ballast inlet open at the top and a ballast outlet connected to the blowing pipe at the bottom and with its longitudinal axis with that provided in the housing end region Gravel outlet is arranged in a slightly upward slope.
  • the required amount of the material to be blown in can also be determined or increased or decreased particularly quickly and precisely only by setting the corresponding screw speed in particular depending on the lifting dimension of the track.
  • the arrangement of the cylinder housing with a slightly upward inclination not only ensures an exact dosage of the required amount of ballast, but also ensures that the entire amount is conveyed through the ballast outlet by gravity to the injection pipe, as the inclined arrangement means that When the screw conveyor is at a standstill, no further gravel can fall down automatically through the ballast outlet.
  • a further variant according to the invention offers particular advantages, in which the pulse counter is connected to the hydraulic drive assigned to the dosing device via the control device to the height adjustment drive of the blowing pipe and the centering device, the pulse counter depending on a signal from the control block and the height adjustment -Drive depending on a signal from the pulse counter for the metering device- via a time delay relay - is controllable.
  • This version ensures almost complete automatic execution both with regard to the timely metering for the injection pipe and with regard to the timely lifting of the injection pipe - which not only simplifies the usability, but also significantly increases the accuracy and economy with such a machine.
  • a further feature of the invention is that a monitoring device is provided for supplying compressed air to the blow-in pipes which can be vibrated by means of a vibrating device, which is connected to transmitter or scanning elements arranged in the upper part of the blow-in pipes in order to block a blow-in pipe when the ballast is blocked to blow this free.
  • a particularly expedient embodiment according to the invention is that the injection pipe has an outlet opening in its tapered lower part, the cross section of which is only the same or only slightly larger than the rest of the continuous round cross section of the injection pipe, and that the lower end of the Injection pipe is pointed on all sides.
  • the practically closed design of the injection tube - with the exception of the outlet opening - ensures that the entire flow rate of the material to be injected is fed and is essentially dust-proof to the outside. This also improves the operator's observation of the working process, in particular the immersion and lifting of the blowing tubes.
  • the all-round design of the lower end of the blow-in tube ensures quick and easy immersion with a reduction in penetration resistance.
  • an air supply pipe is provided in the lower part of the injection pipe, the outlet of which is arranged in the edge region opposite the outlet opening and the inlet of which is connected to a compressed air source for briefly acting on the injection pipe, in particular during and in the final phase of the ballast introduction is.
  • the mobile track correction machine 1 shown in FIGS. 1 and 2 has a bridge-shaped machine frame 2, which is supported in the front area of the machine, which is only partially visible in FIG. 1, on two widely spaced undercarriages 3 and 4, which are based on rails 5 and sleepers 6 existing track 7 are movable.
  • the machine 1 which has a driving cabin 8 at both ends, is equipped with a drive 10 acting on the chassis 4 for a gradual work feed in the direction of the arrow 9.
  • a further operator's cabin 11 and an energy supply device 12 with hydraulic and compressed air sources are arranged in the middle area between the trolleys 3 and 4.
  • a track lifting and straightening device 15 with its lifting and straightening drives 16 and 17 is also arranged on the machine frame 2 per rail 5 with lifting and straightening roll tools 13 and 14.
  • the lifting and straightening roll tools 13, 14 can be acted upon by their drives 16 and 17 using leveling and straightening reference systems.
  • the straightening reference system is shown schematically only by a chord 18 and the leveling reference system only by a shorter chord 19 and a longer chord 20 with a reference point 21 common to both chords at the end of the machine frame.
  • the shorter chord 19 extends to a feeler element 22 and has a sensor 23, as can be seen in the circuit diagram of FIG. 1 to be described later.
  • the track lifting and straightening device 15 arranged directly in the direction of arrow 9 is on the machine frame 2 approximately in the middle between the two trolleys 3 and 4 per rail 5, a blowing unit 24 with a total of four, each for immersion in the ballast bed on the outside of two immediately adjacent sleepers 6 (see FIG. 1) and blow-in slots 25 provided for immersion on the left and right of each rail 5 (see FIG. 2).
  • Each blowing unit 24 is arranged on its own support frame 28, which can be adjusted independently of one another transversely to the track or machine axis, via transverse guides 26 by means of hydraulic cylinder-piston drives 27, each of which has a T-shaped central support 29, on which mutually independent height adjustment of these four injection tubes 25, each arranged on its own tool carrier 30, separate hydraulic cylinder-piston height adjustment drives 31 are articulated.
  • Each injection pipe 25 can also be adjusted independently of one another in the longitudinal direction of the track or machine with its tool carrier 30 via its own hydraulic cylinder-piston longitudinal adjustment drive 32.
  • ballast metering devices 33 are provided above the blow units 24 or the injection pipes 25, as will be described in more detail below, which are arranged on the underside of a common ballast dome 34 open at the top. Above the ballast dome 34 the rising and pivotable end of this dome opens one - with bedding material such as gravel, grit or the like. from a ballast storage container 35 via an ascending conveyor belt 36 and a screening device 37 - endless conveyor belt 38 that can be loaded.
  • 39 also designates a control device which is provided for the independent actuation of the height and track longitudinal adjustment drives 31, 32 and the individual metering devices which can also be acted upon independently of one another.
  • 40 is a monitoring device provided in the operator's cabin 11.
  • the feed size 41 is shown in the form of an arrow of the machine 1 from a previous working position with essentially simultaneous machining of the two immediately adjacent sleepers 6.
  • FIGS. 3 and 4 on a larger scale can be moved with their respective support frame 28 via two transverse guides 26 by means of their hydraulic cylinder-piston drives 27 independently of one another in the transverse track direction or transverse to the longitudinal axis of the machine.
  • FIG. 4 shows a partial top view of the ballast spreader dome 34, the ballast metering devices 33 and one half of a blowing unit 24 in a top view or partially in section.
  • the cross section recognizable at the bottom left in FIG. 4 corresponds to the line IV-IV according to FIG adjacent sleepers 6 determined - thus a total of four independently adjustable height and length adjustable blowing tubes 25.
  • each blow unit 24 has in its lower part on both sides two opposite longitudinal guides 44 each consisting of two horizontal columns parallel to one another and to the track plane.
  • an intermediate carrier 45 is mounted so as to be longitudinally displaceable, each of which is connected to the longitudinal adjustment drive 32 via an arm 46 which is articulated to the support frame (FIG. 4).
  • Each of the intermediate supports 45 is provided with a height guide 47 consisting of two vertical columns running parallel to one another and perpendicular to the track plane, on which the tool support 30 is guided so as to be vertically displaceable via the height adjustment drive 31. and equipped with an electrical transducer 48 connected to it for depth control of the blowing tubes 25.
  • With 49 are arranged on the tool carriers 30 vibrating devices, which are designed as hydraulically loadable eccentrics 50, by means of which the respective injection tubes 25 can be set in vibration.
  • the stroke length of the longitudinal adjustment drive 32 assigned to each injection pipe 25 is at least as large as the size of a sleeper compartment in the longitudinal direction of the track or as large as at least one sleeper distance.
  • each longitudinal guide 44 of this blow unit 24, which is designed for the simultaneous machining of the two adjacent sleepers 6, is dimensioned at least in accordance with the size of a sleeper spacing, the two mutually facing ends of two longitudinal guides 44 arranged one behind the other in the longitudinal direction of the track being arranged at a distance from one another are approximately equal to or greater than twice the width of a threshold.
  • the tool carriers 30 of the individual injection pipes 25 are connected to the ballast metering devices 33 via flexible or flexible hoses 51 which are long enough for the height adjustment.
  • Each of these metering devices 33 which can be acted upon by its own drive 53, consists of a cylindrical housing 52 with a screw conveyor 55 which can be acted upon by this drive.
  • Each drive 53 can be adjusted via a pulse counter 54 - for controlling the amount of ballast volume that is optionally required or required Screw revolutions can be applied.
  • the cylindrical housing 52 is formed with a ballast inlet 56 open at the top and a ballast outlet 57 connected at the bottom to the respective injection pipe 25 and is in each case slightly upwards with the longitudinal axis with the ballast outlet 57 provided in the housing end region arranged gradient.
  • ballast distribution dome 34 is provided on the machine frame.
  • the end of the side-pivotable conveyor belt 38 can be seen in the full as well as in the dashed position.
  • the ballast distribution dome 34 connected to the machine frame 2 has a roof-shaped guide plate 58 for direct arrangement under the discharge end of the conveyor belt 38 and centrally above the two blowing units 24. As a result of this arrangement, the four metering devices each assigned to a blowing unit 24 can be fed approximately uniformly.
  • Fig. 1 the greatly simplified circuit diagram of the control device 39 is connected, the undercarriage 4 and part of the blowing unit 24 also being shown for better understanding.
  • the control device 39 is designed to act independently of one another on the drives of each injection pipe 25 and each metering device 33, which is provided for delivering a quantity of ballast dimensioned in accordance with the desired lifting dimension.
  • the support frame 28 of the blow unit 24 has a central recess 59, within which an electrically secure sensor 60 connected to the probe element 22 that can be supported on the rail 5 is provided.
  • Each drive 53 of the metering device 33 assigned to the blowing units 24 can be acted upon via a throttle check valve 61 and a solenoid valve 62 via the assigned pulse counter 54.
  • Each pulse counter 54 is connected to the hydraulic drive 53 of the respective injection tube 25 assigned to the respective metering device 33, to the respective height adjustment drive 41 and to a centering device 63 via the control device 39 and can be controlled via electrical signals of a time delay relay 64, which is also connected to the control magnet of the solenoid valve 62. Another connection exists between the time delay relay 64 and the control magnet of a proportional solenoid valve 65, by means of which the respective height adjustment drive 31 can be infinitely adjusted.
  • Each longitudinal track adjustment drive 32 is connected to a device 63 of this type for centering the associated injection pipe 25 against the threshold 6 or against the threshold edge, which has a non-return cylinder-piston arrangement 66 and a control block 68 connected to it via a line 67 having.
  • the control block 68 has a control valve arrangement 69 formed from an electromagnetically controllable pressure control valve and a 3/2-way valve, as well as a throttle check valve 70, both of which also have a twin check valve 71 that can be mutually unlocked by the inflow pressure a further 4/3 way solenoid valve 72 are connected.
  • the control block 68 has a pressure-dependent trigger 73 assigned to the line 67, which for the delivery of an electrical control signal to the relay 64 as well as to a further 4/3 way solenoid valve 74 assigned to the non-return cylinder-piston arrangement 66 is trained.
  • the non-return cylinder-piston arrangement 66 also has two successive chambers 75, 76 with different volumes, each of which is connected to the solenoid valve 74 via feed lines and whose respective front boundary forms two pistons 77, 78.
  • the front piston 77 is independent when its chamber 75 is acted upon slidable. When the rear chamber 76 is acted upon, on the other hand, the front piston 77 can be forcibly displaced, too, via the piston rod of the piston 78 which projects forward.
  • the injection tube 25 has in its lower tapered part an outlet opening 79, the cross-section of which is approximately equal to the continuous round cross-section of the section on the flattened side facing the sleeper 6, above the end which is pointed on all sides Tube 25 is dimensioned.
  • the outlet 80 of an air supply pipe 81 is installed in the wall of the blowing pipe 25 and is connected via its inlet to one of the compressed air sources.
  • an encoder or scanning element 82 connected to the monitoring device 40 is provided in the upper part of the tube 25, an encoder or scanning element 82 connected to the monitoring device 40 is provided.
  • the functioning of the machine according to the invention is as follows:
  • the machine 1 is located in the illustration shown in FIG. 1 at a track point to be corrected, where the position error of the track 7 is determined by means of the leveling and leveling system.
  • the track lifting and straightening device 15 With the track lifting and straightening device 15, the track 7 is brought into its correct position, a cavity being created by the lifting process under the threshold 6 to be processed.
  • the volume of this cavity which results from the target lifting dimension and the threshold dimensions, is also the dimension for the required amount of additional bedding material to be introduced.
  • the bedding material crushed stone, grit or the like
  • Grain sizes over approximately 20 mm are separated out here.
  • the material treated in this way now reaches the ballast distribution dome 34 by means of a conveyor belt 38, where it is distributed to the inlets 56 of the metering devices 33 by optionally pivoting the conveyor belt 38 sideways and by means of the guide plate 58 (FIG. 3).
  • the injection tubes 25 are at a reference height determined by the measuring transducers 48 above the top edge of the rail and, in the course of a feed step in feed size 41 along their longitudinal guides 44, are based on a specific, predetermined basic dimension - the dimension that depends on the threshold distance is dependent - adjusted so that a safe lowering into the threshold compartment is ensured after stopping (position 84 in FIG. 8).
  • the blowing tubes 25 are lowered by means of the height adjustment drives 31 until their tips come to lie below the upper edge of the threshold, as indicated in position 85.
  • the respective longitudinal adjustment drive 32 is acted upon by a reduced pressure set on the control valve arrangement 69 in FIG. 1.
  • the blowing pipe 25 now moves towards the threshold 83. Since the return flow of oil from the longitudinal adjustment drive 32 has to pass the throttle check valve 70, a dynamic pressure is created in the line 67, which drops immediately after the pipe 25 stops - position 86 - on the threshold side.
  • the pressure-sensitive switch 73 responds to this and outputs a signal to the solenoid valve 74.
  • the vibrating device 49 When registering a ballast blockage or a ballast accumulation (for example as a result of clumped ballast or the like) in the pipe cross section by the transmitter or scanning element 82 shown in FIG. 5, the vibrating device 49 is activated by the connected monitoring device 40 and the air supply is reactivated .
  • the centering device 63 can now be set so that the signal from the switch 73 via the solenoid valve 74 acts on the chamber 76.
  • the forwardly projecting piston rod of the piston 78 By means of the forwardly projecting piston rod of the piston 78, the adjustment path of which extends approximately up to the feed line to the chamber 75, the front piston 77 is forcibly moved and thus an oil quantity corresponding to the - smaller - chamber volume is pressed into the longitudinal adjustment drive 32.
  • the extent of the centering movement with wooden sleepers is therefore somewhat smaller than with the processing of concrete sleepers.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Measuring Volume Flow (AREA)

Abstract

1. A travelling track correcting machine (1) comprising a track lifting unit provided on the machine frame (2) and designed to be actuated by a drive with the aid of a reference system and at least one blowing unit (24) comprising a support frame (28) connected to the machine frame (2) for at least one injection tube (25) designed to penetrate into the ballast bed on the left and right of the rail (5) on one longitudinal side of the particular sleeper (6) after step-by-step advance and to be charged with the bedding material from a storage container (35) for blowing in additional bedding material, such as ballast, chippings or the like, said injection tube (25) comprising at outlet opening (79) at its tapered lower end in its flattened side facing the sleeper (6) and being designed for vertical displacement by a drive connected to a control unit (39) and a metering unit (33) connected to a drive (53) being arranged between the storage container (35) and the injection tube (25) to dispense a quantity of ballast measured in accordance with the prescribed degree of lift, characterized in that the blowing unit (24) comprises a support frame (28) with the two injection tubes (25) vertically displaceable relative thereto, which support frame is connected to a drive (27) for displacement transversely of the track and in that the injection tubes (25) are designed for independent vertical and longitudinal displacement and are connected to their own vertical and longitudinal displacement drives (31, 32) and are also connected to their own metering units (33) designed to be actuated by a drive (53), the control unit (39) being designed for independent actuation of the drives of each injection tube and each metering unit.

Description

Die Erfindung betrifft eine fahrbare Gleiskorrekturmaschine, mit einer am Maschinenrahmen vorgesehenen, über einen Antrieb an Hand eines Bezugssystems beaufschlagbaren Gleishebevorrichtung und wenigstens einem Blas-Aggregat mit einem mit dem Maschinenrahmen verbundenen Tragrahmen für wenigstens je ein, in das Schotterbett links und rechts der Schiene an einer Längsseite der jeweiligen Schwelle nach schrittweisem Vorschub eintauchbares und aus einem Vorratsbehälter mit dem Bettungsmaterial beschickbares Einblaserohrzum Einblasen von zusätzlichem Bettungsmaterial, wie Schotter, Splitt od.dgl., welches im Bereich seines verjüngten unteren Endes an seiner der Schwelle zugekehrten, abgeflachten Seite eine Austrittsöffnung aufweist und über einen, mit einer Steuereinrichtung verbundenen Antrieb höhenverstellbar ausgebildet ist und wobei zwischen Vorratsbehälter und Einblaserohr eine mit einem Antrieb verbundene Dosiervorrichtung - zur Abgabe einer dem Soll-Hebemass entsprechend bemessenen Schottermenge - angeordnet ist.The invention relates to a mobile track correction machine, with a track lifting device provided on the machine frame, which can be acted upon by a drive using a reference system, and at least one blower unit with a supporting frame connected to the machine frame for at least one, in the ballast bed on the left and right of the rail on one On the long side of the respective threshold, after step-by-step feed, the blowing-in tube can be immersed and fed with the bedding material from a storage container for blowing in additional bedding material, such as gravel, grit or the like, which has an outlet opening in the area of its tapered lower end on its flattened side facing the threshold is designed to be height-adjustable via a drive connected to a control device and wherein a metering device connected to a drive is connected between the storage container and the blowing pipe - for delivering a Sc hotter crowd - is arranged.

Es ist-gemäss DE-C-811 956-einealstragbares Handgerät ausgebildete Vorrichtung zum Unterfüllen jeweils einer zuvor auf Soll-Niveau angehobenen Schwelle durch Einblasen von körnigem Bettungsmaterial bekannt, bei welcher über einen an das absenkbare Einblaserohr angebauten Vorratsbehälter mit Siebboden das einzublasende Bettungsmaterial unter der Wirkung der dem Einblaserohr vor einem Vibrator erteilten vertikalen Schwingungen in einen zwischen der Blasdüse und einem dazu koaxialen Lufttrichter des Einblaserohresgebirdeten Ringspaltfällt. Abgesehen davon, dass der Einsatz dieses Handgerätes umfangreiche und zeitraubende Vorbereitungsmassnahmen, z.B. die Aufstellung und Bedienung von separat mitgeführten Gleishebegeräten, erfordert, um das Gleis an der betreffenden Stelle in das Soll-Niveau zu verbringen, ist es nachteilig, dass der Einblasevorgang auf Grund der langsamen Schwingförderung des Bettungsmaterials zum Ringspalt verhältnismässig viel Zeit beansprucht. Ausserdem besteht keine Kontrollmöglichkeit, ob die vom Bediener jeweils vorgesehene Bettungsmaterialmenge dazu ausreicht, um den schotterfreien Raum unter der angehobenen Schwelle tatsächlich zu Gänze auszufüllen. Bei zu gross bemessener Menge bzw. bei zu spätem Abschalten der Material- und Druckluftzufuhrsind Stauungen und Verklemmungen des überschüssigen Bettungsmaterials innerhalb der Engstellen des Einblaserohres kaum zu vermeiden. Auch eine maschinelle Anwendung derartig ausgebildeter Einblasegeräte ist aus den genannten Gründen nicht möglich.It is known, according to DE-C-811 956, a portable device designed to underfill a threshold which has previously been raised to the desired level by blowing in granular bedding material, in which the bedding material to be blown in under the bedding material is attached to the lowerable blow-in tube with a sieve bottom The effect of the vertical vibrations imparted to the blowing pipe in front of a vibrator falls into an annular gap formed between the blowing nozzle and an air funnel of the blowing pipe coaxial therewith. Apart from the fact that the use of this handheld device requires extensive and time-consuming preparatory measures, e.g. the installation and operation of separately carried track lifting devices required, in order to bring the track at the relevant point to the desired level, it is disadvantageous that the blowing process takes a relatively long time due to the slow vibration of the bedding material to the annular gap. In addition, there is no possibility of checking whether the amount of bedding material provided by the operator is sufficient to actually completely fill the ballast-free space below the raised threshold. If the quantity is too large or if the material and compressed air supply is switched off too late, congestion and jamming of the excess bedding material within the constrictions of the injection pipe can hardly be avoided. A mechanical application of blowing devices designed in this way is also not possible for the reasons mentioned.

Es ist auch - gemäss AT-A-188 740 - ein manuell bedienbares Einblasegerät zum Festlegen an Schwelle und Schiene bekannt, wobei zum Einblasen von Schotter vorher jedes zweite Schwellenfach ausgeräumt werden muss und die Schwellen auf ihr richtiges Niveau hochgehoben werden müssen, um das Gerät sodann festzulegen. Dieses Gerät weist an seinem Kiesbehälter einen durch eine transparente Platte abgedeckten Schlitz auf, welcher neben einer Skala liegt, deren Ziffern von oben nach unten ansteigen, so dass die unter eine Schwelle eingeblasene Kiesmenge nachträglich festgestellt werden kann. Auch dieses Gerät ist für eine maschinelle Anwendung schon hinsichtlich des sehr zeitaufwendigen und ümständlichen Verfahrens nicht geeignet.According to AT-A-188 740, a manually operated blowing device for fixing to sleeper and rail is known, in which every second sleeper compartment has to be cleared beforehand and the sleepers have to be raised to their correct level in order to blow the ballast then determine. This device has on its gravel container a slot covered by a transparent plate, which lies next to a scale, the digits of which rise from top to bottom, so that the amount of gravel blown in under a threshold can be determined subsequently. This device, too, is not suitable for mechanical use in view of the very time-consuming and cumbersome process.

Es ist nunmehr-gemäss DE-A-2919 945-eine fahrbare Maschine mit einer Gleishebevorrichtung und einer Einrichtung zum Einblasen von Schotter unter die angehobenen Schwellen bekannt, bei welcher der im Vorratsbehälter gelagerte Schotter über einen darunter angeordneten Vibrations-Zuführtisch und eine schräg nach unten verlaufende Schüttrinne in das in Längsrichtung mit Druckluft beaufschlagte und an der, der Schwelle zugewandten Seite bis über die Schwelle oben offene Einblaserohr eingebracht wird. Die einseitig grosse offene Ausbildung: mit entsprechender Querschnittsdimensionierung des Einblaserohres soll ein Verklemmen von Schottersteinen im unteren Mündungsbereich des Einblaserohres vermeiden. Das Einblaserohr wird im eingetauchten Zustand so lange mit Schotter beschickt, bis das überschüssige Material an der offenen Seite des Einblaserohres austritt und sich an der Schwellenoberseite ablagert. Eine vollständige und gleichmässige Füllung des schotterfreien Raumes unterhalb der angehobenen Schwelle ist neben dem Nachteil der starken Staubentwicklung nicht immer zu erreichen, da über die weitgehend offene Seite des Einblaserohres ein Druckausgleich zwischen der eingeblasenen und der Umgebungsluft stattfindet und im wesentlichen nur die rein dynamische Wirkung des Druckluftstrahles die Steine in den Hohlraum unter der Schwelle befördert. Das Zentrieren des mit der Maschine gemeinsam schrittweise von Schwelle zu Schwelle vorrückbaren Einblaserohres, um dieses unmittelbar neben der Schwelle in das Schotterbett einzutauchen - ohne dabei auch die Schwelle oder sonstige Gleisbauteile zu beschädigen - ist sehr schwierig, insbesondere im Vergleich zu einem in das Schotterbett eintauchbaren Stopfwerkzeug mit Arbeits-Beistellbewegung, noch schwieriger-da das Einblaserohr genau oder nur im Abstand von wenigen Millimetern neben der Schwelle in das Schwellenfach abgesenkt werden muss.It is now known - according to DE-A-2919 945 - a mobile machine with a track lifting device and a device for blowing in ballast under the raised sleepers, in which the ballast stored in the storage container via a vibration feed table arranged underneath and an obliquely downward running chute into the blow-in tube, which is pressurized with compressed air in the longitudinal direction and is open on the side facing the threshold up to above the threshold. The large open design on one side: with the appropriate cross-sectional dimensions of the blow-in pipe, ballast stones should be prevented from jamming in the lower mouth area of the blow-in pipe. The submerged blow pipe is fed with ballast until the excess material emerges on the open side of the blow pipe and is deposited on the top of the sleeper. A complete and uniform filling of the ballast-free space below the raised threshold is not always achievable in addition to the disadvantage of the strong dust development, since a pressure equalization takes place between the injected and the ambient air via the largely open side of the injection pipe and essentially only the purely dynamic effect of the Compressed air jet transported the stones into the cavity under the threshold. The centering of the injection tube that can be advanced step by step from threshold to threshold in order to immerse it directly next to the threshold into the ballast bed - without damaging the threshold or other track components - is very difficult, especially in comparison to a plunge into the ballast bed Stuffing tool with work-side movement, even more difficult - since the blowing pipe has to be lowered into the sleeper compartment exactly or only a few millimeters away from the sleeper.

Schliesslich ist-gemäss DE-A-3236 723-eine fahrbare Gleiskorrekturmaschine mit einer über einen Antrieb beaufschlagbaren Gleishebevorrichtung und einer Einrichtung zum Einblasen von zusätzlichem Bettungsmaterial, wie Schotter, Splitt od.dgl., unter die angehobenen Schwellen im Kreuzungsbereich mit der jeweiligen Schiene, bekannt. Die an Hand eines Bezugssystems bzw. einer Gleishöhenlage-Messvorrichtung über ihren Antrieb beaufschl'agbare Gleishebevorrichtung ist zum Anheben und Absenken ausgebildet und mit einer Einrichtung zum messbaren Überheben des Gleises verbunden. Die Einblase-Einrichtung weist je ein in das Schotterbett links und rechts derFinally, according to DE-A-3236 723, a mobile track correction machine with a track lifting device which can be acted upon by a drive and a device for blowing in additional bedding material, such as ballast, grit or the like, is under the raised sleepers in the area of intersection with the respective rail. known. The track lifting device which can be acted upon by means of a reference system or a track height position measuring device is designed for raising and lowering and is connected to a device for measurable raising of the track. The blowing device has one in the ballast bed on the left and one on the right

Schiene an einer Längsseite der Schwelle eintauchbares und aus einem Vorratsbehälter mit dem Bettungsmaterial beschickbares Einblaserohr zum Einblasen von zusätzlichem Bettungsmaterial, wie Schotter, Splitt od. dgl., auf. Die beiden Einblaserohre sind an einem über einen, mit einer Steuereinrichtung verbundenen Antrieb zum Maschinenrahmen höhenverstellbaren Tragteil gemeinsam angeordnet und bilden somit ein Blas-Aggregat. Jedes zur Förderung des Bettungsmaterials mit Druckluft beaufschlagbare Einblaserohr weist im Bereich seines verjüngten unteren Endes an der der Schwelle zugekehrten abgeflachten Seite eine Austrittsöffnung auf, deren Querschnitt nur geringfügig grösser als der Durchgangsquerschnitt des gesamten Einblaserohres ausgebildet ist. Die beiden, mit dem Tragteil höhenverstellbaren Einblaserohre weisen ferner einen zur Tiefenbegrenzung vorgesehenen und auf das angehobene Gleis abstützbaren Anschlag auf, um beim schrittweisen Vorrücken der mit dem Blas-Aggregat versehenen Maschine das Blasrohr gegen die zu bearbeitende Schwelle hin besser zentrieren zu können. Um eine weitgehend gemeinsame synchrone Eintauchbewegung eines gegenüber dem Einblaserohrvorgesehenen Widerlagers zu ermöglichen, ist ferner das Einblaserohr und/oder auch das Widerlager an dem am Maschinenrahmen höhenverstellbaren Tragteil federnd gelagert. Zwischen Vorratsbehälter und Einblaserohr ist eine mit einem Antrieb verbundene Dosiervorrichtung - zur Abgabe einer dem Soll-Hebemass entsprechend bemessenen Schottermenge - vorgesehen. Die Dosiervorrichtung besteht aus einem an der Oberseite zum Vorratsbehälter und an der Unterseite zum Einblaserohr hin offenen, im wesentlichen horizontal angeordneten und mit einem Dosierkolben zusammenwirkenden Dosierzylinder, in welchem ein hohlzylindrischer Verschlussteil drehbar gelagert und mit einem, die Öffnungen des Dosierzylinders korrespondierenden Ausschnitt ausgebildet ist. Diese Gleiskorrekturmaschine ist daher bereits weitgehendst im Zusammenhang mit der Dosiervorrichtung, der Steuereinrichtung, des Bezugssystems für die Gleishöhenlage-Messvorrichtung und der Einrichtung zum messbaren Überheben des Gleises auf eine echte und im wesentlichen störungsfreie maschinelle Anwendung abgestellt.Rail on a longitudinal side of the sleeper, which can be immersed and blown from a storage container with the bedding material, for blowing in additional bedding material, such as crushed stone, grit or the like. The two injection tubes are jointly arranged on a support part which is height-adjustable to the machine frame via a drive connected to a control device and thus form a blow unit. Each injection pipe for which the bedding material can be pressurized with compressed air has an outlet opening in the area of its tapered lower end on the flattened side facing the sleeper, the cross section of which is only slightly larger than the passage cross section of the entire injection pipe. The two injection tubes, which are height-adjustable with the support part, also have a stop which is provided for limiting the depth and which can be supported on the raised track, in order to be able to better center the blowing tube against the threshold to be machined when the machine provided with the blowing unit is gradually advanced. In order to enable a largely common synchronous plunging movement of an abutment provided with respect to the blowing-in pipe, the blowing-in pipe and / or also the abutment is also resiliently mounted on the support part which is height-adjustable on the machine frame. A metering device connected to a drive is provided between the storage container and the blow-in pipe - for dispensing a quantity of ballast measured in accordance with the desired lifting dimension. The metering device consists of a metering cylinder which is open on the upper side towards the storage container and on the underside towards the injection tube, is arranged essentially horizontally and cooperates with a metering piston, in which a hollow cylindrical closure part is rotatably mounted and with a cutout corresponding to the openings of the metering cylinder. This track correction machine is therefore largely geared to a real and essentially trouble-free machine application in connection with the metering device, the control device, the reference system for the track height measuring device and the device for measurable lifting of the track.

Der Erfindung liegt nun die Aufgabe zugrunde, eine fahrbare Gleiskorrekturmaschine der eingangs beschriebenen Art zu schaffen, mit welcher das Blas-Aggregat und die Einblaserohre genauer und rascher an die zu bearbeitende Stelle im Gleis herangeführt bzw. besser an die Schwelle bzw. die Gleiskonstruktion oder den oft wechselnden Einsatzbedingungen angepasst werden können. Ferner soll auch die Leistung bzw. Wirtschaftlichkeit mit einer solchen Maschine verbessert werden.The invention is based on the object of creating a mobile track correction machine of the type described at the outset, with which the blow unit and the blow-in pipes are brought closer and more precisely to the point to be processed in the track or better to the threshold or the track construction or the often changing operating conditions can be adapted. Furthermore, the performance or economy should also be improved with such a machine.

Das Ziel der Erfindung wird mit einer eingangs beschriebenen Gleiskorrekturmaschine dadurch erreicht, dass das Blas-Aggregat einen Tragrahmen mit den beiden zu diesem höhenverstellbaren Einblaserohren aufweist, der mit einem Antrieb zur Verstellung in Gleisquerrichtung verbunden ist, und dass jedes Einblaserohr voneinander unabhängig höhen- und längsverstellbar ausgebildet ist und jeweils mit einem eigenen Höhen- und Gleislängsverstell-Antrieb verbunden ist, sowie jeweils mit einer eigenen, über einen Antrieb beaufschlagbaren Dosiervorrichtung in Verbindung steht, wobei die Steuereinrichtung zur voneinander unabhängigen Beaufschlagung der Antriebe jedes Einblaserohres und jeder Dosiervorrichtung ausgebildet ist.The aim of the invention is achieved with a track correction machine described at the outset in that the blowing unit has a support frame with the two blowing tubes which are adjustable in height, which is connected to a drive for adjustment in the transverse direction of the track, and in that each blowing tube is independently adjustable in height and length is formed and is each connected to its own height and track longitudinal adjustment drive, and is connected to its own metering device which can be acted upon by a drive, the control device being designed to act independently of each other on the drives of each injection tube and each metering device.

Die Erfindung ermöglicht somit erstmals durch die voneinander unabhängige Höhen- und insbesondere Längsverstellung der einzelnen Einblaserohre eine überraschend einfache und doch sehr genaue Zentrierung bzw. Zustellung an die gewünschte, unmittelbar neben der Schwellenseite bzw. der Schiene gelegene Stelle im Gleis. Dadurch kann ohne Beschädigung irgendwelcher Gleisteile, z.B. einer schrägliegenden Schwelle, ein gezieltes Absenken jedes einzelnen Einblaserohres erreicht werden. Auch in Gleisbögen oder bei Spurweitenveränderung bzw. in Weichen ist durch die Querverstellung des Blas-Aggregates immer eine sichere und rasche Zentrierung bzw. eine genaue Heranführung an die Schiene möglich. Weiter wird auch der Arbeitsfortschritt insgesamt erhöht.The invention thus enables, for the first time, the surprisingly simple and yet very precise centering or delivery to the desired location in the track, which is located directly next to the sleeper side or the rail, due to the independent height and in particular longitudinal adjustment of the individual injection tubes. This can be done without damaging any track parts, e.g. an inclined threshold, a targeted lowering of each individual blowing tube can be achieved. Even in track bends or when changing track widths or in switches, the transverse adjustment of the blower unit always enables safe and quick centering or precise approach to the rail. The overall work progress is also increased.

Nach einem bevorzugten weiteren Merkmal der Erfindung ist am Maschinenrahmen je ein jeder Schiene zugeordnetes und über je einen als Hydraulik-Zylinder-Kolben-Anordnung ausgebildeten Antrieb voneinander unabhängig in Gleisquerrichtung verstellbares Blas-Aggregat vorgesehen, welches jeweils mit - zum Eintauchen in das Schotterbett links und rechts der jeweiligen Schiene an der jeweiligen Aussen-Längsseite zweier unmittelbar benachbarter Schwellen bestimmten - somit insgesamt vier voneinander unabhängig höhen- und längsverstellbaren Einblaserohren - ausgestattet ist. Mit den beiden voneinander unabhängig und individuell in Gleisquerrichtung verstellbaren Blas-Aggregaten und den insgesamt acht voneinander unabhängig der Höhe und in Gleislängsrichtung verstellbaren Einblaserohren zur gleichzeitigen Bearbeitung zweier benachbarter Schwellen wird nicht nur ein besonders hoher Arbeitsfortschritt erreicht, sondern es können auch alle einzelnen Einblaserohre ohne gegenseitige Behinderung und ohne Beschädigung irgendwelcher Gleisteile an die gewünschte Stelle im Gleis zum sicheren und genauen Absenken in das jeweilige Schwellenfach herangeführt bzw. zentriert werden.According to a preferred further feature of the invention, a blowing unit is provided on the machine frame, which is assigned to each rail and is independently adjustable in the transverse direction of the track via a drive designed as a hydraulic cylinder-piston arrangement, each with - for immersion in the ballast bed on the left and to the right of the respective rail on the respective outer longitudinal side of two immediately adjacent sleepers - thus a total of four independently adjustable and longitudinally adjustable blowing tubes. With the two blowing units, which can be adjusted independently and individually in the cross-track direction, and the total of eight blowing tubes, which can be adjusted independently of each other in height and in the longitudinal direction, for simultaneous processing of two neighboring sleepers, not only is a particularly high level of work progress achieved, but all individual blowing tubes can also be used without mutual Disability and without damaging any track parts to the desired location in the track for safe and accurate lowering in the respective sleeper compartment or centered.

Eine andere Weiterbildung der Erfindung besteht darin, dass jedes Blas-Aggregat mit seinem Tragrahmen an Querführungen des Maschinenrahmens verschiebbar gelagert und jeweils mit dem doppelbeaufschlagbar ausgebildeten Hydraulik-Zylinder-Kolben-Antrieb gelenkig verbunden ist, und dass jedes Einblaserohr jeweils an einem, mit einer zur Gleisebene senkrecht verlaufenden-aus zwei zueinander parallelen Säulen bestehenden - Höhen-Führung ausgebildeten und über eine am Tragrahmen vorgesehene, zur Gleisebene parallel und in Gleislängsrichtung verlaufende - auch aus zwei zueinander parallelen Horizontal-Säulen bestehenden-Längs-Führung verschiebbaren Zwischenträger gelagert ist, sowie mit jeweils einem doppelbeaufschlagbaren Hydraulik-Zylinder-Kolben-Höhen- bzw. Gleislängsverstell-Antrieb in Verbindung steht. Diese Ausführung ist im Aufbau einfach und gewährleistet durch die jeweilige Längsverschiebung in Verbindung mit den Höhen- und Längs-Führungen, aber auch der Längsverschiebung der beiden Blas-Aggregate eine besonders genaue und zuverlässige Einstellbarkeit jedes individuell voneinander verstellbaren Einblaserohres.Another development of the invention is that each blowing unit with its support frame is displaceably mounted on transverse guides of the machine frame and is articulated in each case with the hydraulic cylinder-piston drive, which can be acted upon with double action, and that each blowing tube is in each case connected to one, to one Track level running vertically - consisting of two columns parallel to each other - Height guidance designed and provided on the support frame, parallel to the track level and in the longitudinal direction of the track - also from two mutually parallel Hori zontal pillars existing longitudinal guide is displaceable intermediate carrier, and is connected to a double-acting hydraulic cylinder-piston height or track length adjustment drive. This design is simple in construction and ensures through the respective longitudinal displacement in connection with the vertical and longitudinal guides, but also the longitudinal displacement of the two blowing units, a particularly precise and reliable adjustability of each individually adjustable blowing tube.

In besonders vorteilhafter Weise sind nach einem weiteren Merkmal der Erfindung die zweckmässig mit rundem Querschnittausgebildeten Höhen- und Längs-Führungen mit den zugeordneten Zwischenträgern zweier in Gleisquerrichtung benachbarter bzw. in Gleislängsrichtung hintereinander angeordneter Einblaserohre zu der jeweiligen - durch das Blas-Aggregat führenden Längs- bzw. Quer-Mittelvertikal-Ebene zueinander spiegelsymmetrisch ausgebildet. Diese Ausbildung ist nicht nur einfach, sondern auch platzsparend und gewährleistet eine gute Sicht zur Beobachtung der Einzelwerkzeuge durch den Bedienungsmann.In a particularly advantageous manner, according to a further feature of the invention, the height and length guides, which are expediently formed with a round cross section, with the associated intermediate supports of two injection pipes which are adjacent in the track direction or arranged one behind the other in the direction of the track direction, to the respective longitudinal or leading through the blowing unit Transversely central vertical plane mirror-symmetrical to each other. This training is not only simple, but also space-saving and ensures a good view for the observation of the individual tools by the operator.

Gemäss einem vorteilhaften weiteren Merkmal der Erfindung kann die Hublänge des dem Einblaserohr zugeordneten Gleislängsverstell-Antriebes bzw. die Längs-Führung am Tragrahmen wenigstens der Schwellenfach-Breite bzw. dem Schwellen-Abstand entsprechend bemessen werden. Dadurch wird sichergestellt, dass jedes Einblaserohr auch bei schräg liegenden Schwellen noch zuverlässig unmittelbar neben der zu bearbeitenden Schwelle in den Schrotter abgesenkt werden kann, ohne diese zu beschädigen.According to an advantageous further feature of the invention, the stroke length of the longitudinal rail adjustment drive assigned to the blowing pipe or the longitudinal guide on the support frame can be dimensioned at least in accordance with the sleeper compartment width or the sleeper spacing. This ensures that even with inclined sleepers, each injection pipe can still be reliably lowered into the scrap directly next to the sleeper to be processed without damaging it.

Eine besonders vorteilhafte Ausführung der Erfindung zeichnet sich dadurch aus, dass jede Längs-Führung eines zur gleichzeitigen Bearbeitung zweier benachbarter Schwellen ausgebildeten Blas-Aggregates wenigstens entsprechend der Grösse einesSchwellen-Abstandes bemessen ist, wobei die beiden einander zugewandten Enden der zwei in Gleislängsrichtung hintereinander angeordneten Längs-Führungen in einem Abstand zueinander angeordnet sind, der wenigstens gleich oder grösser als zweimal die Breite einer Schwelle ist. Diese Ausführung gewährleistet eine sichere Zentrierung bzw. Zustellbewegung zur gewünschten Eintauchstelle jedes Einblaserohres, und zwar auch dann, wenn beide benachbarten Schwellen nicht genau verlegt sind, sondern beispielsweise schräg liegen. Ferner können mit dieser Ausbildung ohne zusätzliche Einrichtungen oder einen zusätzlichen Mehraufwand an Arbeit auch Doppelschwellen bearbeitet werden.A particularly advantageous embodiment of the invention is characterized in that each longitudinal guide of a blow unit designed for the simultaneous processing of two adjacent sleepers is dimensioned at least in accordance with the size of a sleeper distance, the two mutually facing ends of the two longitudinally arranged one behind the other in the longitudinal direction of the track Guides are arranged at a distance from each other that is at least equal to or greater than twice the width of a threshold. This design ensures a safe centering or infeed movement to the desired immersion point of each injection tube, even if both neighboring sleepers are not precisely laid, but are, for example, at an angle. With this training, double sleepers can also be processed without additional facilities or additional work.

Eine besonders bevorzugte Ausgestaltung der Erfindung ist dadurch gekennzeichnet, dass für jeden Gleislängsverstell-Antrieb eine Vorrichtung zum Zentrieren des zugeordneten Einblaserohres gegen die Schwelle bzw. Schwellenkante hin vorgesehen ist, welche eine mit einem Steuerblock der Steuereinrichtung verbundene und bei Berü h-rung der Schwelle―durch das gegen diese längsverstellbare Einblaserohr - betätigbare Rückschlag-Zylinder-Kolben-Anordnung aufweist. Mit einer derartigen Ausbildung ist praktisch eine automatische Ortung der einzelnen Einblaserohre an der gewünschten, insbesondere oft nur wenige Millimeter neben der Schwellenseite liegenden Stelle durchführbar, ohne beim Absenken irgendwelche Gleisbauteile zu beschädigen. Neben einer einfacheren Bedienbarkeit hinsichtlich der Zentrierung der Einblaserohre und Blas-Aggregate ist dadurch auch die genauere Durchführung der Bearbeitung möglich, wobei insbesondere auch die Leistung wesentlich gesteigert wird.A particularly preferred embodiment of the invention is characterized in that a device for centering the associated blowing pipe against the threshold or threshold edge is provided for each longitudinal track adjustment drive, which device is connected to a control block of the control device and upon touching the threshold. by means of the non-return cylinder-piston arrangement which can be actuated against this longitudinally adjustable injection tube. With such a design it is practically possible to automatically locate the individual injection tubes at the desired location, in particular often only a few millimeters from the threshold side, without damaging any track components when lowering. In addition to being easier to operate with regard to the centering of the blowing-in pipes and blowing units, this also enables the machining to be carried out more precisely, in particular the performance being significantly increased.

Nach einer vorteilhaften Ausführung der Erfindung ist die vorzugsweise hydraulisch beaufschlagbare Rückschlag-Zylinder-Kolben-Anordnung der Zentriervorrichtung mit einem mittels Signalabgabe eines―drucklos auslösenden―Schalters steuerbaren Magnetventil - für eine Zentrier- bzw. Rückstellbewegung durch den Gleislängsverstell-Antrieb - verbunden. Mit dieser Ausführung wird eine besonders einfache und robuste Anordnung geschaffen, mit welcher zuverlässig ein genaues Rückstell- bzw. Zustellmass der Zentrier- bzw. Rückstell-Bewegung für das Einblaserohr erzielt wird. Es wird dadurch insbesondere eine sehr sensible Steuereinrichtung geschaffen, die rasch und sicher die notwendigen Schalt- bzw. Bewegungsvorgänge regelt.According to an advantageous embodiment of the invention, the preferably hydraulically loadable non-return cylinder-piston arrangement of the centering device is connected to a solenoid valve that can be controlled by signaling a ― depressurized ― switch - for a centering or resetting movement by the longitudinal adjustment drive. With this design, a particularly simple and robust arrangement is created, with which an accurate reset or infeed dimension of the centering or reset movement for the blowing tube is reliably achieved. This creates in particular a very sensitive control device that regulates the necessary switching or movement processes quickly and safely.

Ein bevorzugtes Merkmal der Erfindung besteht weiter darin, dass die Rückschlag-Zylinder-Kolben-Anordnung - zur wahlweisen Einstellung verschiedener Rückstellmasse - als Doppel-Kolben-Rückschlag-Zylinder (z.B. für Holz- oder Betonschwellen) mit zwei volumsmässig verschiedenen, mit dem Magnetventil über Leitungen verbundenen Zylinderkammern - ausgebildet ist. Diese Ausbildung ermöglicht in vorteilhafter Weise die Anpassung an verschiedene Gleisbedingungen oder Gleiskonstruktionen, z.B. Gleise mit verschiedenem, vom Durchschnitt abweichendem Schwellenabstand oder Schwellen mit verschiedenen Querschnittsformen.A preferred feature of the invention consists in the fact that the non-return cylinder-piston arrangement - for the optional setting of different restoring mass - as a double-piston non-return cylinder (eg for wooden or concrete sleepers) with two different volumes, with the solenoid valve above Lines connected cylinder chambers - is formed. This design advantageously enables adaptation to different track conditions or track constructions, e.g. Tracks with different threshold spacings that differ from the average or sleepers with different cross-sectional shapes.

Eine weitere bevorzugte Ausbildung der Erfindung besteht darin, dass jede mit einem eigenen Antrieb beaufschlagbare Dosiervorrichtung aus einem zylindrischen Gehäuse mit einem über den Antrieb beaufschlagbaren Schnecken-Förderer besteht, wobei am Maschinenrahmen ein gemeinsamer, über den einzelnen, insgesamt acht Dosiervorrichtungen angeordneter und mit Schotter vom Vorratsbehälter über ein seitenverschwenkbares Förderband beschickbarer Schotterverteil-Dom vorgesehen ist. Durch diese Ausbildung wird sichergestellt, dass jedes Einblaserohr die genaue, gewünschte Schottermenge erhält, die unter der Schwelle eingebrachtwerden soll. Die Anordnung eines Schotterverteil- Domes bringt den Vorteil einer relativ zentralen Materialbeschickung mit einfacher und besserer Förderung zu den einzelnen Dosiervorrichtungen.A further preferred embodiment of the invention consists in that each metering device which can be acted upon by its own drive consists of a cylindrical housing with a screw conveyor which can be acted on by the drive, a common one arranged above the individual, a total of eight metering devices and with ballast from Storage container is provided over a laterally pivotable conveyor belt feedable ballast distribution dome. This design ensures that each blowing pipe receives the exact, desired amount of ballast that is to be introduced below the threshold. The arrangement of a ballast dome brings the advantage of a relatively central material feed with simple and better conveying to the individual metering devices.

Eine besonders vorteilhafte Ausbildung nach der Erfindung ist dadurch gekennzeichnet, dass der vorzugsweise hydraulisch beaufschlagbare Antrieb jeder Dosiervorrichtung über einen Impulszähler zur Steuerung der wahlweise entsprechend der gewünschten bzw. erforderlichen Schottervolums-Menge einstellbaren Schnekken-Umdrehungen beaufschlagbar ist und dass das Zylindergehäuse mit einem oben offenen Schotter-Einlass und einem unten mit dem Einblaserohr in Verbindung stehenden Schotter-Auslass ausgebildet und mit seiner Längsachse mit dem im Gehäuse-Endbereich vorgesehenen Schotter-Auslass in leicht nach oben verlaufender Neigung angeordnet ist. Mit einer derartigen, im Aufbau einfachen und zweckmässigen Ausbildung, insbesondere hinsichtlich der Zulieferung des Materials zu jeder einzelnen Dosiervorrichtung kann weiter je nach Bedarf die erforderliche Menge des einzublasenden Materials besonders rasch und genau lediglich durch Einstellung der entsprechenden Schnecken-Umdrehungszahl festgelegt bzw. erhöht oder verringert werden, insbesondere auch in Abhängigkeit vom Hebemass des Gleises. Durch die Anordnung des Zylindergehäuses in leicht nach oben verlaufender Neigung wird insbesondere nicht nur eine genaue Dosierung der erforderlichen Schottermenge gewährleistet, sondern darüberhinaus auch sichergestellt, dass die gesamte Menge durch den Schotter-Auslass mittels Schwerkraft zum Einblaserohr befördert wird, da durch die geneigte Anordnung bei Stillstand des Schnecken-Förderers kein weiteres Schotterkorn mehr selbsttätig durch den Schotter-Auslass nach unten fallen kann.A particularly advantageous embodiment according to the invention is characterized in that the preferably hydraulically actuated drive of each metering device via a pulse counter for controlling the optionally corresponds According to the desired or required amount of ballast volume, adjustable screw revolutions can be applied and that the cylinder housing is designed with a ballast inlet open at the top and a ballast outlet connected to the blowing pipe at the bottom and with its longitudinal axis with that provided in the housing end region Gravel outlet is arranged in a slightly upward slope. With such a construction which is simple and expedient in construction, in particular with regard to the supply of the material to each individual metering device, the required amount of the material to be blown in can also be determined or increased or decreased particularly quickly and precisely only by setting the corresponding screw speed in particular depending on the lifting dimension of the track. The arrangement of the cylinder housing with a slightly upward inclination not only ensures an exact dosage of the required amount of ballast, but also ensures that the entire amount is conveyed through the ballast outlet by gravity to the injection pipe, as the inclined arrangement means that When the screw conveyor is at a standstill, no further gravel can fall down automatically through the ballast outlet.

Besondere Vorteile bietet eine weitere erfindungsgemässe Variante, bei welcher der Impulszähler mit dem der Dosiervorrichtung zugeordneten Hydraulik-Antrieb über die Steuereinrichtung mit dem Höhenverstell-Antrieb des Einblaserohres und der Zentriervorrichtung verbunden ist, wobei jeweils der Impulszähler in Abhängigkeit von einem Signal des Steuerblockes und der Höhenverstell-Antrieb in Abhängigkeit von einem Signal des Impulszählers für die Dosiervorrichtung- über ein Zeitverzögerungs- Relais - steuerbar ist. Diese Ausführung sichert nahezu eine vollständige automatische Durchführung sowohl hinsichtlich der rechtzeitigen Dosierung für das Einblaserohr als auch hinsichtlich der rechtzeitigen Anhebung des Einblaserohres - wodurch nicht nur die Bedienbarkeit vereinfacht wird, sondern auch die Genauigkeit und Wirtschaftlichkeit mit einer solchen Maschine wesentlich gesteigert wird.A further variant according to the invention offers particular advantages, in which the pulse counter is connected to the hydraulic drive assigned to the dosing device via the control device to the height adjustment drive of the blowing pipe and the centering device, the pulse counter depending on a signal from the control block and the height adjustment -Drive depending on a signal from the pulse counter for the metering device- via a time delay relay - is controllable. This version ensures almost complete automatic execution both with regard to the timely metering for the injection pipe and with regard to the timely lifting of the injection pipe - which not only simplifies the usability, but also significantly increases the accuracy and economy with such a machine.

Ein weiteres Merkmal der Erfindung besteht darin, dass eine Überwachungseinrichtung zur Beaufschlagung der über eine Rüttel-Vorrichtung in Vibration versetzbaren Einblaserohre mit Druckluft vorgesehen ist, die mit im oberen Teil der Einblaserohre angeordneten Geber- oder Abtast-Elementen verbunden ist, um bei Schotterblockierung eines Einblaserohres dieses freizublasen. Diese einfache Ausbildung sichert praktisch bei jeder Blockierung eines oder mehrerer Einblaserohre mit dem zu beschickenden Material eine rasche und sichere Entleerung.A further feature of the invention is that a monitoring device is provided for supplying compressed air to the blow-in pipes which can be vibrated by means of a vibrating device, which is connected to transmitter or scanning elements arranged in the upper part of the blow-in pipes in order to block a blow-in pipe when the ballast is blocked to blow this free. This simple design ensures rapid and safe emptying practically every time one or more injection tubes are blocked with the material to be loaded.

Eine besonders zweckmässige Ausbildung nach der Erfindung besteht darin, dass das Einblaserohr in seinem verjüngten unteren Teil eine Austrittsöffnung aufweist, dessen Querschnitt lediglich gleich oder nur geringfügig grösser bemessen ist als der übrige, durchgehend runde Durchgangs- Querschnitt des Einblaserohres, und dass das untere Ende des Einblaserohres allseitig spitz ausgebildet ist. Die praktisch geschlossene Ausbildung des Einblaserohres - mit Ausnahme der Austrittsöffnung - sichert die Beschickung der gesamten Fördermenge des einzublasenden Materials und ist im wesentlichen staubdicht nach aussen. Dadurch wird auch das Beobachten des Arbeitsvorganges, insbesondere das Eintauchen und das Abheben der Einblaserohre, durch die Bedienungsperson verbessert. Die allseitig spitze Ausbildung des unteren Endes des Einblaserohres sichert ein rasches und problemloses Eintauchen mit Verringerung des Eindringwiderstandes.A particularly expedient embodiment according to the invention is that the injection pipe has an outlet opening in its tapered lower part, the cross section of which is only the same or only slightly larger than the rest of the continuous round cross section of the injection pipe, and that the lower end of the Injection pipe is pointed on all sides. The practically closed design of the injection tube - with the exception of the outlet opening - ensures that the entire flow rate of the material to be injected is fed and is essentially dust-proof to the outside. This also improves the operator's observation of the working process, in particular the immersion and lifting of the blowing tubes. The all-round design of the lower end of the blow-in tube ensures quick and easy immersion with a reduction in penetration resistance.

Schliesslich ist nach einem weiteren vorteilhaften Merkmal der Erfindung im unteren Teil des Einblaserohres ein Luftzufuhr-Rohr vorgesehen, dessen Auslass im der Austrittsöffnung gegenüberliegenden Randbereich angeordnet und dessen Einlass mit einer Druckluftquelle zur kurzzeitigen Beaufschlagung des Einblaserohres, insbesondere während und in der Endphase der Schottereinbringung, verbunden ist. Diese besonders vorteilhafte Ausbildung der Einbindung des Luftzuführ-Rohres im Einblaserohr behindert einerseits keineswegs die reibungslose Durchförderung des zugeführten Materials und sichert andererseits eine rasche und reibungslose Material-Beförderung. Zweckmässig ist dieses Luftzuführ-Rohr gleichzeitig mit der vorher beschriebenen Überwachungseinrichtung anwendbar, um das Einblaserohr bei einer Schotterblockierung mit Druckluft zu beaufschlagen.Finally, according to a further advantageous feature of the invention, an air supply pipe is provided in the lower part of the injection pipe, the outlet of which is arranged in the edge region opposite the outlet opening and the inlet of which is connected to a compressed air source for briefly acting on the injection pipe, in particular during and in the final phase of the ballast introduction is. This particularly advantageous embodiment of the integration of the air supply pipe in the blowing pipe on the one hand in no way hinders the smooth conveying of the supplied material and on the other hand ensures a quick and smooth material conveyance. This air supply pipe can expediently be used at the same time as the monitoring device described above, in order to apply compressed air to the injection pipe in the event of ballast blocking.

Die Erfindung wird im folgenden an einem bevorzugten Ausführungsbeispiel an Hand der Zeichnungen näher erläutert.The invention is explained below using a preferred embodiment with reference to the drawings.

Es zeigen:

  • Fig. 1 eine fahrbare Gleiskorrekturmaschine nach der Erfindung in Teil-Seitenansicht mit Gleishebe- und Richtvorrichtung, Blas-Aggregat und den Schotterförder- bzw. Dosiervorrichtungen, sowie einem dieser Ansicht angeschlossenen Schaltschema,
  • Fig. 2 eine teilweise Draufsicht auf die beiden Blas-Aggregate der Maschine nach Fig. 1,
  • Fig. 3 das Blas-Aggregat nach Fig. 1 in Seitenansicht in vergrössertem Massstab zum im wesentlichen gleichzeitigen Einblasen von Schotter unterhalb zweier unmittelbar benachbarter Schwellen,
  • Fig. 4 eine Draufsicht in vergrössertem Massstab auf die Blas-Aggregate nach Fig. 3 teilweise im Querschnitt,
  • Fig. 5 den unteren Teil eines nach der Erfindung ausgebildeten Einblaserohres im unmittelbaren eingetauchten Zustand neben einer Holzschwelle im Querschnitt,
  • Fig. 6 einen Schnitt gemäss VI-VI nach Fig. 5,
  • Fig. 7 den unteren Teil des Einblaserohres in Seitenansicht gemäss Pfeil VII nach Fig. 6, und
  • Fig. 8 eine schematische Darstellung des unteren Einblaserohrteils vom abgehobenen Zustand mit verschiedenen Zwischenstellungen bis zum Eintauchzustand in Verbindung mit einer Betonschwelle.
Show it:
  • 1 is a mobile track correction machine according to the invention in partial side view with track lifting and straightening device, blowing unit and the ballast conveying or dosing devices, and a circuit diagram connected to this view,
  • 2 is a partial plan view of the two blowing units of the machine of FIG. 1,
  • 3 shows the blow unit according to FIG. 1 in a side view on an enlarged scale for essentially simultaneously blowing in ballast below two immediately adjacent sleepers,
  • 4 is a top view, on an enlarged scale, of the blowing units according to FIG. 3, partly in cross section,
  • 5 the cross-section of the lower part of an injection tube designed according to the invention in the immediately immersed state next to a wooden sleeper,
  • 6 shows a section according to VI-VI according to FIG. 5,
  • 7 shows the lower part of the injection tube in a side view according to arrow VII according to FIG. 6, and
  • Fig. 8 is a schematic representation of the lower inlet pipe part from the raised state with various intermediate positions to Immersion status in connection with a concrete sleeper.

Die in den Fig. 1 und 2 dargestellte fahrbare Gleiskorrekturmaschine 1 weist einen brückenförmigen Maschinenrahmen 2 auf, welcher sich im vorderen, in Fig. 1 nur teilweise ersichtlichen Bereich der Maschine auf zwei weit voneinander distanzierten Fahrwerken 3 und 4 abstützt, die auf dem aus Schienen 5 und Schwellen 6 bestehenden Gleis 7 verfahrbar sind. Die an beiden Enden je eine Fahr-Kabine 8 aufweisende Maschine 1 ist für einen schrittweisen Arbeitsvorschub in Richtung des Pfeiles 9 mit einem auf das Fahrwerk 4 wirkenden Antrieb 10 ausgestatted. Im Mittelbereich zwischen den Fahrwerken 3 und 4 ist eine weitere Bediener-Kabine 11, sowie eine Energieversorgungseinrichtung 12 mit Hydraulik- und Druckluftquellen angeordnet. Zwischen den Fahrwerken 3 und 4 ist ferner am Maschinenrahmen 2 je Schiene 5 eine mit Hebe- und Richtroll-Werkzeugen 13 und 14 ausgestattete Gleishebe- und Richt-Vorrichtung 15 mit ihren Hebe- und Richt-Antrieben 16 und 17 angeordnet. Die Hebe- und Richtroll-Werkzeuge 13, 14 sind über ihre Antriebe 16 und 17 an Hand von Nivellier- und Richt-Bezugssystemen beaufschlagbar. In der Zeichnung ist schematisch das Richt- Bezugssystem lediglich durch eine Sehne 18 und das Nivellier-Bezugssystem lediglich durch eine kürzere Sehne 19 und eine längere Sehne 20 mit einem für beide genannten Sehnen am Ende des Maschinenrahmens gemeinsamen Bezugspunkt 21 dargestellt. Die kürzereSehne 19 reicht bis zu einem Tastorgan 22 und hateinen­wie im noch später zu beschreibenden Schaltschema der Fig. 1 ersichtlichen - Messfühler 23 zugeordnet.The mobile track correction machine 1 shown in FIGS. 1 and 2 has a bridge-shaped machine frame 2, which is supported in the front area of the machine, which is only partially visible in FIG. 1, on two widely spaced undercarriages 3 and 4, which are based on rails 5 and sleepers 6 existing track 7 are movable. The machine 1, which has a driving cabin 8 at both ends, is equipped with a drive 10 acting on the chassis 4 for a gradual work feed in the direction of the arrow 9. A further operator's cabin 11 and an energy supply device 12 with hydraulic and compressed air sources are arranged in the middle area between the trolleys 3 and 4. Between the trolleys 3 and 4, a track lifting and straightening device 15 with its lifting and straightening drives 16 and 17 is also arranged on the machine frame 2 per rail 5 with lifting and straightening roll tools 13 and 14. The lifting and straightening roll tools 13, 14 can be acted upon by their drives 16 and 17 using leveling and straightening reference systems. In the drawing, the straightening reference system is shown schematically only by a chord 18 and the leveling reference system only by a shorter chord 19 and a longer chord 20 with a reference point 21 common to both chords at the end of the machine frame. The shorter chord 19 extends to a feeler element 22 and has a sensor 23, as can be seen in the circuit diagram of FIG. 1 to be described later.

Der Gleishebe- und Richt-Vorrichtung 15 unmittelbar in Richtung des Pfeiles 9 vorgeordnet ist am Maschinenrahmen 2 etwa mittig zwischen den beiden Fahrwerken 3 und 4 je Schiene 5 ein Blas-Aggregat 24 mit insgesamt vier, jeweils zum Eintauchen in das Schotterbett an den Aussenseiten zweier unmittelbar benachbarter Schwellen 6 (siehe Fig. 1) und jeweils zum Eintauchen links und rechts jeder schiene 5 (siehe Fig. 2) vorgesehene Einblaserahre 25 angeordnet. Jedes Blas-Aggregat 24 ist an einem eigenen, über QuerFührungen 26 mittels, Hydraulik-Zylinder- Kolben-Antrieben 27 voneinander unabhängig quer zur Gleis- bzw. Maschinenachse verstellbaren Tragrahmen 28 angeordnet, welcher jeweils einen T-förmigen Mittelträger 29 aufweist, an dem zur voneinander unabhängigen Höhenverstellung dieser vier, jeweils an einem eigenen Werkzeugträger 30 angeordneten Einblaserohre 25 eigene Hydraulik- Zylinder-Kolben-Höhenverstell-Antriebe 31 angelenktsind. Jedes Einblaserohr 25 ist weiter mit seinem Werkzeugträger 30 über einen eigenen Hydraulik-Zylinder-Kolben-Längsverstell-Antrieb 32 voneinander unabhängig in Gleis- bzw. Maschinenlängsrichtung verstellbar.The track lifting and straightening device 15 arranged directly in the direction of arrow 9 is on the machine frame 2 approximately in the middle between the two trolleys 3 and 4 per rail 5, a blowing unit 24 with a total of four, each for immersion in the ballast bed on the outside of two immediately adjacent sleepers 6 (see FIG. 1) and blow-in slots 25 provided for immersion on the left and right of each rail 5 (see FIG. 2). Each blowing unit 24 is arranged on its own support frame 28, which can be adjusted independently of one another transversely to the track or machine axis, via transverse guides 26 by means of hydraulic cylinder-piston drives 27, each of which has a T-shaped central support 29, on which mutually independent height adjustment of these four injection tubes 25, each arranged on its own tool carrier 30, separate hydraulic cylinder-piston height adjustment drives 31 are articulated. Each injection pipe 25 can also be adjusted independently of one another in the longitudinal direction of the track or machine with its tool carrier 30 via its own hydraulic cylinder-piston longitudinal adjustment drive 32.

Wie aus Fig. 1 weiter ersichtlich, sind oberhalb der Blas-Aggregate 24 bzw. der Einblaserohre 25, wie im folgenden noch näher beschrieben, Schotter- Dosiervorrichtungen 33 vorgesehen, die an der Unterseite eines gemeinsamen, oben offenen Schotterverteil- Domes 34 angeordnet sind. Oberhalb des Schotterverteil-Domes 34 mündet das ansteigende und quer zu diesem Dom verschwenkbare Ende eines - mit Bettungsmaterial, wie Schotter, Splitt od.dgl. von einem Schotter-Vorratsbehälter 35 über ein Steig-Förderband 36 und eine Siebvorrichtung 37 - beschickbaren endlosen Förderbandes 38.As can also be seen from FIG. 1, ballast metering devices 33 are provided above the blow units 24 or the injection pipes 25, as will be described in more detail below, which are arranged on the underside of a common ballast dome 34 open at the top. Above the ballast dome 34 the rising and pivotable end of this dome opens one - with bedding material such as gravel, grit or the like. from a ballast storage container 35 via an ascending conveyor belt 36 and a screening device 37 - endless conveyor belt 38 that can be loaded.

In Fig. 1 ist weiter mit 39 eine Steuereinrichtung bezeichnet, die zur voneinander unabhängigen Beaufschlagung der Höhen- und Gleislängsverstell-Antriebe 31, 32 und der ebenso unabhängig voneinander beaufschlagbaren einzelnen Dosiervorrichtungen vorgesehen ist. Mit 40 ist eine in der Bediener-Kabine 11 vorgesehene Überwachungseinrichtung bezeichnet. Unterhalb des Blas-Aggregates 24 ist, wie in Fig. 1 ersichtlich, die Vorschub-Grösse 41 in Form eines Pfeiles der Maschine 1 von einer vorangegangenen Arbeitsstellung bei im wesentlichen gleichzeitiger Bearbeitung der beiden unmittelbar benachbarten Schwellen 6 dargestellt. Das strichliert und schematisch dargestellte Blas-Aggregat 24 zeigt die Stellung nach einem weiteren Vorschub gemäss der in Form eines strichlierten Pfeiles dargestellten Vorschub-Grösse 42.In FIG. 1, 39 also designates a control device which is provided for the independent actuation of the height and track longitudinal adjustment drives 31, 32 and the individual metering devices which can also be acted upon independently of one another. 40 is a monitoring device provided in the operator's cabin 11. Below the blow unit 24, as can be seen in FIG. 1, the feed size 41 is shown in the form of an arrow of the machine 1 from a previous working position with essentially simultaneous machining of the two immediately adjacent sleepers 6. The blow unit 24, shown in broken lines and schematically, shows the position after a further feed according to the feed size 42 shown in the form of a dashed arrow.

Die in den Fig. 3 und 4 im grösseren Massstab ersichtlichen Blas-Aggregat 24 sind mit ihrem jeweiligen Tragrahmen 28 über zwei Quer-Führungen 26 mittels ihrer Hydraulik-Zylinder-Kolben-Antriebe 27 voneinander unabhängig in Gleisquerrichtung bzw. quer zur Maschinenlängsachse verschiebbar. Fig. 4 zeigt teilweise in Draufsicht den Schotterverteif-Dom 34, die Schotter-Dosiervorrichtungen 33 sowie je eine Hälfte eines Blas-Aggregates 24 in Draufsicht bzw. teilweise im Schnitt. Der in Fig. 4 links unten erkennbare QuerSchnitt entspricht der Linie IV-IV nach Fig. 3. Jedes dieser beiden Blas-Aggregate 24 ist jeweils mit zum Eintauchen in das Schotterbett links und rechts der jeweiligen Schiene 5 an der jeweiligen Aussen-Längsseite zweier unmittelbar benachbarter Schwellen 6 bestimmten - somit insgesamt vier voneinander unabhängig höhen- und längsverstellbaren Einblaserohren 25 ausgestattet. Die im Aggregat-Mittelbereich in Fig. 3 imSchnittdargestellte, als auch die im Endbereich des Tragrahmens 28 angeordnete Querführung 26 ist übervertikale Tragholme 43 mit dem Maschinenrahmen 2 verbunden. Der Tragrahmen 28 jedes Blas-Aggregates 24 weist in seinem unteren Teil an beiden Seiten je zwei gegenüberliegende, aus jeweils zwei zueinander und zur Gleisebene parallelen Horizontal-Säulen bestehende Längs-Führungen 44 auf. Entlang dieser ist je ein Zwischenträger 45 längsverschiebbar gelagert, welcher jeweils über einen mit dem Tragrahmen gelenkig verbundenen Arm 46 mit dem Längsverstell-Antrieb 32 in Verbindung steht (Fig. 4). Jeder der Zwischenträger 45 ist mit einer aus zwei zueinander parallelen und Gleisebene senkrecht verlaufenden VertikalSäulen bestehenden Höhen-Führung 47, an welcher der Werkzeugträger 30 über die Höhenverstell-Antrieb, 31 höhenverschiebbar geführt ist, und mit einem, mit diesem für eine Tiefensteuerung der Einblaserohre 25 verbundenen elektrischen Messwertgeber48 ausgestattet. Mit 49 sind an den Werkzeugträgern 30 angeordnete RüttelVorrichtungen, die als hydraulisch beaufschlagbare Exzenter 50 ausgebildet sind, bezeichnet, mittels derer die jeweiligen Einblaserohre 25 in Vibration versetzbar sind.The blow unit 24 shown in FIGS. 3 and 4 on a larger scale can be moved with their respective support frame 28 via two transverse guides 26 by means of their hydraulic cylinder-piston drives 27 independently of one another in the transverse track direction or transverse to the longitudinal axis of the machine. FIG. 4 shows a partial top view of the ballast spreader dome 34, the ballast metering devices 33 and one half of a blowing unit 24 in a top view or partially in section. The cross section recognizable at the bottom left in FIG. 4 corresponds to the line IV-IV according to FIG adjacent sleepers 6 determined - thus a total of four independently adjustable height and length adjustable blowing tubes 25. 3, as well as the transverse guide 26 arranged in the end region of the support frame 28, are connected to the machine frame 2 via vertical support bars 43. The support frame 28 of each blow unit 24 has in its lower part on both sides two opposite longitudinal guides 44 each consisting of two horizontal columns parallel to one another and to the track plane. Along each of these, an intermediate carrier 45 is mounted so as to be longitudinally displaceable, each of which is connected to the longitudinal adjustment drive 32 via an arm 46 which is articulated to the support frame (FIG. 4). Each of the intermediate supports 45 is provided with a height guide 47 consisting of two vertical columns running parallel to one another and perpendicular to the track plane, on which the tool support 30 is guided so as to be vertically displaceable via the height adjustment drive 31. and equipped with an electrical transducer 48 connected to it for depth control of the blowing tubes 25. With 49 are arranged on the tool carriers 30 vibrating devices, which are designed as hydraulically loadable eccentrics 50, by means of which the respective injection tubes 25 can be set in vibration.

Die, wie in Fig. 4 erkennbar, zweckmässig mit rundem Querschnitt ausgebildeten Höhen- und Längs-Führungen 47, 44 mit ihren zugeordneten Zwischenträgern 45 jeweils zweier in Gleis-Querrichtung benachbarter bzw. in Gleislängsrichtung hintereinander angeordneter Einblaserohre 25 sind zu der jeweiligen, durch das Blas-Aggregat 24 führenden Längs- bzw. Quer-Mittelvertikal-Ebene zueinander spielgelsymmetrisch ausgebildet. Die Hublänge des jedem Einblaserohr 25 zugeordneten Gleislängsverstell-Antriebes 32 ist wenigstens so gross als die Grösse eines Schwellenfaches in Gleislängsrichtung bzw. so gross als wenigstens ein Schwellenabstand. Ferner ist jede Längs-Führung 44 dieses zur gleichzeitigen Bearbeitung der beiden benachbarten Schwellen 6 ausgebildeten Blas-Aggregates 24 wenigstens entsprechend der Grösse eines Schwellenabstandes bemessen, wobei die beiden einander zugewandten Enden von zwei in Gleislängsrichtung hintereinander angeordneten Längs-Führungen 44 in einem Abstand zueinander angeordnet sind, der etwa gleich oder grösser als zwei Mal die Breite einer Schwelle ist.The, as can be seen in Fig. 4, expediently formed with a round cross-section height and longitudinal guides 47, 44 with their associated intermediate beams 45 each two adjacent in the track transverse direction or in the longitudinal direction of the inlet pipes 25 are to the respective, by the Blowing unit 24 leading longitudinal or transverse center vertical plane to each other in a game-symmetrical manner. The stroke length of the longitudinal adjustment drive 32 assigned to each injection pipe 25 is at least as large as the size of a sleeper compartment in the longitudinal direction of the track or as large as at least one sleeper distance. Furthermore, each longitudinal guide 44 of this blow unit 24, which is designed for the simultaneous machining of the two adjacent sleepers 6, is dimensioned at least in accordance with the size of a sleeper spacing, the two mutually facing ends of two longitudinal guides 44 arranged one behind the other in the longitudinal direction of the track being arranged at a distance from one another are approximately equal to or greater than twice the width of a threshold.

Wie aus Fig. 3 ersichtlich, stehen die Werkzeugträger 30 der einzelnen Einblaserohre 25 über elastische bzw. biegsame und für die Höhenverstellung genügend lang bemessenen Schläuche 51 mit den Schotter-Dosiervorrichtungen 33 in Verbindung. Jede dieser mit einem eigenen Antrieb 53 beaufschlagbaren Dosiervorrichtungen 33 besteht aus einem zylindrischen Gehäuse 52 mit einem über diesen Antrieb beaufschlagbaren Schnecken-Förderer 55. Jeder Antrieb 53 ist über einen Impulszähler 54 - zur Steuerung der wahlweise entsprechend der gewünschten bzw. erforderlichen Schottervolums-Menge einstellbaren Schnecken-Umdrehungen beaufschlagbar. Das zylindrische Gehäuse 52 ist mit einem oben offenen Schotter-Einlass 56 und einem unten mit dem jeweiligen Einblaserohr 25 in Verbindung stehenden Schotter-Auslass 57 ausgebildet und ist jeweils mit der Längsachse mit dem im Gehäuse-Endbereich vorgesehenen Schotter-Auslass 57 in leicht nach oben verlaufender Neigung angeordnet. Am Maschinenrahmen ist der gemeinsame, über den einzelnen, insgesamt acht Dosiervorrichtungen 33 angeordnete und mit Schotter vom Vorratsbehälter 35 (Fig. 1) über das seitenverschwenkbare Förderband 38 beschickbare Schotterverteil-Dom 34vorgesehen. Auf der linken Seite der Fig. 4 ist das Ende des seitenverschwenkbaren Förderbandes 38 in voller als auch in strichlierter Stellung erkennbar. Der mit dem Maschinenrahmen 2 verbundene Schotterverteil-Dom 34 weist ein dachförmiges Leitblech 58 zur direkten Anordnung unter dem Abwurfende des Förderbandes 38 und zentral oberhalb der beiden Blas-Aggregate 24 auf. Durch diese Anordnung sind die jeweils einem Blas-Aggregat 24 zugeordneten vier Dosiervorrichtungen etwa gleichmässig beschickbar.As can be seen from FIG. 3, the tool carriers 30 of the individual injection pipes 25 are connected to the ballast metering devices 33 via flexible or flexible hoses 51 which are long enough for the height adjustment. Each of these metering devices 33, which can be acted upon by its own drive 53, consists of a cylindrical housing 52 with a screw conveyor 55 which can be acted upon by this drive. Each drive 53 can be adjusted via a pulse counter 54 - for controlling the amount of ballast volume that is optionally required or required Screw revolutions can be applied. The cylindrical housing 52 is formed with a ballast inlet 56 open at the top and a ballast outlet 57 connected at the bottom to the respective injection pipe 25 and is in each case slightly upwards with the longitudinal axis with the ballast outlet 57 provided in the housing end region arranged gradient. The common, above the individual, a total of eight metering devices 33 and provided with ballast from the storage container 35 (FIG. 1) via the side-pivotable conveyor belt 38, ballast distribution dome 34 is provided on the machine frame. On the left side of FIG. 4, the end of the side-pivotable conveyor belt 38 can be seen in the full as well as in the dashed position. The ballast distribution dome 34 connected to the machine frame 2 has a roof-shaped guide plate 58 for direct arrangement under the discharge end of the conveyor belt 38 and centrally above the two blowing units 24. As a result of this arrangement, the four metering devices each assigned to a blowing unit 24 can be fed approximately uniformly.

In Fig. 1 ist das stark vereinfachte Schaltschema der Steuereinrichtung 39 angeschlossen, wobei zum besseren Verständnis auch noch das Fahrwerk 4 und ein Teil des Blas-Aggregates 24 dargestellt sind. Die Steuereinrichtung 39 istzurvoneinander unabhängigen Beaufschlagung der Antriebe jedes Einblaserohres25 und jeder-zur Abgabe einer dem Soll-Hebemass entsprechend bemessenen Schottermenge vorgesehenen - Dosiervorrichtung 33 ausgebildet. Der Tragrahmen 28 des Blas-Aggregates 24 weist eine mittlere Ausnehmung 59 auf, innerhalb welcher ein mit dem auf der Schiene 5 abstützbaren Tastorgan 22 verbundener elektrsicher Messwertgeber 60 vorgesehen ist. Jeder Antrieb 53 der den Blas-Aggregaten 24 zugeordneten Dosiervorrichtung 33 ist über ein Drosselrückschlag-Ventil 61 und ein MagnetVentil 62 über den zugeordneten Impulszähler 54 beaufschlagbar. Jeder Impulszähler 54 ist mit dem, der jeweiligen Dosiervorrichtung 33 zugeordneten Hydraulik-Antrieb 53 des jeweiligen Einblaserohres 25, mit dem jeweiligen Höhenverstell-Antrieb 41 und einer Zentriervorrichtung 63 über die Steuereinrichtung 39 verbunden und ist über elektrische Signale eines Zeitverzögerungs- Relais 64 steuerbar, welches auch mit dem Steuermagneten des Magnet-Ventils 62 verbunden ist. Eine weitere Verbindung besteht zwischen dem Zeitverzögerungs-Relais 64 und dem Steuermagnet eines Proportional-Magnetventils 65, über welches der jeweilige Höhenverstell-Antrieb 31 stufenlos einstellbar ist.In Fig. 1, the greatly simplified circuit diagram of the control device 39 is connected, the undercarriage 4 and part of the blowing unit 24 also being shown for better understanding. The control device 39 is designed to act independently of one another on the drives of each injection pipe 25 and each metering device 33, which is provided for delivering a quantity of ballast dimensioned in accordance with the desired lifting dimension. The support frame 28 of the blow unit 24 has a central recess 59, within which an electrically secure sensor 60 connected to the probe element 22 that can be supported on the rail 5 is provided. Each drive 53 of the metering device 33 assigned to the blowing units 24 can be acted upon via a throttle check valve 61 and a solenoid valve 62 via the assigned pulse counter 54. Each pulse counter 54 is connected to the hydraulic drive 53 of the respective injection tube 25 assigned to the respective metering device 33, to the respective height adjustment drive 41 and to a centering device 63 via the control device 39 and can be controlled via electrical signals of a time delay relay 64, which is also connected to the control magnet of the solenoid valve 62. Another connection exists between the time delay relay 64 and the control magnet of a proportional solenoid valve 65, by means of which the respective height adjustment drive 31 can be infinitely adjusted.

Jeder Gleislängsverstell-Antrieb 32 ist mit einer derartigen Vorrichtung 63 zum Zentrieren des zugeordneten Einblaserohres 25 gegen die Schwelle 6 bzw. gegen die Schwellenkante hin verbunden, welche eine Rückschlag-Zylinder-Kolben-Anordnung 66 und einen mit dieser über eine Leitung 67 verbundenen Steuerblock 68 aufweist. Der Steuerblock 68 weist eine aus einem elektromagnetisch steuerbaren Druckregel-Ventil und einem 3/2 Wege-Ventil gebildete Regelventil-Anordnung 69 sowie ein Drosselrückschlag-Ventil 70 auf, welche beide über ein durch den Zufluss-Druck gegenseitig entsperrbares Zwillings-Rückschlagventil 71, mit einem weiteren 4/3 Wege-Magnetventil 72 verbunden sind. Der Steuerblock 68 weist einen der Leitung 67 zugeordneten, druckabhängig auslösenden Schalter 73 auf, welcher für die Abgabe eines elektrischen Steuersignales sowohl an das Relais 64 als auch an ein der Rückschlag-Zylinder-Kolben-Anordnung 66 zugeordnetes weiteres 4/3 Wege-Magnetventil 74 ausgebildet ist. Die Rückschlag-Zylinder-Kolben-Anordnung 66 weist weiter zwei hintereinanderliegende, jeweils mit dem Magnetventil 74 über Zuleitungen in Verbindung stehende Kammern 75, 76 mit verschiedenem Volumen auf, deren jeweilige vordere Begrenzung zwei Kolben 77, 78 bilden. Der vordere Kolben 77 ist bei Beaufschlagung seiner Kammer 75 unabhängig verschiebbar. Bei Beaufschlagung der hinteren Kammer 76 ist andererseits - über die nach vorne ragende Kolbenstange des Kolbens 78 - der vordere Kolben 77 zwangsweise mitverschiebbar.Each longitudinal track adjustment drive 32 is connected to a device 63 of this type for centering the associated injection pipe 25 against the threshold 6 or against the threshold edge, which has a non-return cylinder-piston arrangement 66 and a control block 68 connected to it via a line 67 having. The control block 68 has a control valve arrangement 69 formed from an electromagnetically controllable pressure control valve and a 3/2-way valve, as well as a throttle check valve 70, both of which also have a twin check valve 71 that can be mutually unlocked by the inflow pressure a further 4/3 way solenoid valve 72 are connected. The control block 68 has a pressure-dependent trigger 73 assigned to the line 67, which for the delivery of an electrical control signal to the relay 64 as well as to a further 4/3 way solenoid valve 74 assigned to the non-return cylinder-piston arrangement 66 is trained. The non-return cylinder-piston arrangement 66 also has two successive chambers 75, 76 with different volumes, each of which is connected to the solenoid valve 74 via feed lines and whose respective front boundary forms two pistons 77, 78. The front piston 77 is independent when its chamber 75 is acted upon slidable. When the rear chamber 76 is acted upon, on the other hand, the front piston 77 can be forcibly displaced, too, via the piston rod of the piston 78 which projects forward.

Das in den Fig. 5, 6 und 7 ersichtliche Einblaserohr 25 weist in seinem unteren verjügten Teil über dem allseitig spitz ausgebildeten Ende an der der Schwelle 6 zugekehrten, abgeflachten Seite eine Austrittsöffnung 79 auf, deren Querschnitt etwa gleich dem durchgehend runden Durchgangs- querschnitt des Rohres 25 bemessen ist. Im Randbereich gegenüber der Austrittsöffnung 79 ist der Auslass 80 eines in die Wandung des Einblaserohres 25 eingebauten Luftzuführ-Rohres 81 angeordnet, welches über seinen Einlass mit einer der Druckluftquellen in Verbindung steht. Im oberen Teil des Rohres 25 ist ein mit der Oberwachungseinrichtung 40 verbundenes Geber- oder Abtastelement 82 vorgesehen.5, 6 and 7, the injection tube 25 has in its lower tapered part an outlet opening 79, the cross-section of which is approximately equal to the continuous round cross-section of the section on the flattened side facing the sleeper 6, above the end which is pointed on all sides Tube 25 is dimensioned. In the edge area opposite the outlet opening 79, the outlet 80 of an air supply pipe 81 is installed in the wall of the blowing pipe 25 and is connected via its inlet to one of the compressed air sources. In the upper part of the tube 25, an encoder or scanning element 82 connected to the monitoring device 40 is provided.

Die Funktionsweise der erfindungsgemässen Maschine ist wie folgt: Die Maschine 1 befindet sich in der in Fig. 1 ersichtlichen Darstellung an einer zu korrigierenden Gleisstelle, wo mittels des Richt- und Nivelliersystems der Lagefehler des Gleises 7 ermittelt wird. Mit der Gleishebe- und Richt-Vorrichtung 15 wird das Gleis 7 in seine richtige Lage verbracht, wobei durch den Hebevorgang unter der zu bearbeitenden Schwelle 6 ein Hohlraum entsteht. Das Volumen dieses Hohlraumes, welches sich aus dem Soll-Hebemass und den Schwellenabmessungen ergibt, ist auch das Mass für die erforderliche Menge an zusätzlich einzubringendem Bettungsmaterial. Die Aufbereitung des Bettungsmaterials (Schotter, Splitt od.dgl.) erfolgt in der auch das Förderband des Vorratsbehälters 35 beschickten Siebvorrichtung 37. Korngrössen über etwa 20 mm werden hier ausgeschieden. Das solcherart behandelt Material gelangt nun mittels Förderband 38 zum Schotterverteil-Dom34, wo es durch wahlweises seitliches Verschwenken des Förderbandes 38 sowie durch das Leitblech 58 auf die Einlässe 56 der Dosiervorrichtungen 33 verteilt wird (Fig. 3).The functioning of the machine according to the invention is as follows: The machine 1 is located in the illustration shown in FIG. 1 at a track point to be corrected, where the position error of the track 7 is determined by means of the leveling and leveling system. With the track lifting and straightening device 15, the track 7 is brought into its correct position, a cavity being created by the lifting process under the threshold 6 to be processed. The volume of this cavity, which results from the target lifting dimension and the threshold dimensions, is also the dimension for the required amount of additional bedding material to be introduced. The bedding material (crushed stone, grit or the like) is processed in the conveyor belt of the storage container 35, which is also supplied with sieve 37. Grain sizes over approximately 20 mm are separated out here. The material treated in this way now reaches the ballast distribution dome 34 by means of a conveyor belt 38, where it is distributed to the inlets 56 of the metering devices 33 by optionally pivoting the conveyor belt 38 sideways and by means of the guide plate 58 (FIG. 3).

An Hand der Fig. 1 bis 7 und insbesondere der Fig. 8 werden nun die einzelnen Bewegungsabläufe der Einblaserohre 25 und ihre ZwischenStellungen sowie die Funktionsweise der Steuereinrichtung 39 bei einer zu bearbeitenden Betonschwelle 83 näher erläutert:1 to 7 and in particular FIG. 8, the individual movement sequences of the blowing pipes 25 and their intermediate positions as well as the mode of operation of the control device 39 in the case of a concrete sleeper 83 to be processed are now explained in more detail:

Während der Maschinenvorfahrt befinden sich die Einblaserohre 25 in einer durch die Messwertgeber 48 ermittelten Referenzhöhe über der Schienenoberkante und werden im Zuge eines Vorschubschrittes in Vorschub-Grösse 41 entlang ihrer Längs-Führungen 44 an Hand eines bestimmten, vorgegebenen Grundmasses - dem Mass, welches vom Schwellenabstand abhängig ist - so verstellt, dass nach dem Anhalten ein sicheres Absenken in das Schwellenfach gewährleistet ist (Position 84 in Fig. 8). Nach Maschinenstillstand erfolgt mittels der Höhenverstell-Antriebe 31 eine Absenkung der Einblaserohre 25, bis ihre Spitzen unterhalb der Schwellenoberkante zu liegen kommen, wie in Position 85 angedeutet.While the machine is moving forward, the injection tubes 25 are at a reference height determined by the measuring transducers 48 above the top edge of the rail and, in the course of a feed step in feed size 41 along their longitudinal guides 44, are based on a specific, predetermined basic dimension - the dimension that depends on the threshold distance is dependent - adjusted so that a safe lowering into the threshold compartment is ensured after stopping (position 84 in FIG. 8). After the machine has come to a standstill, the blowing tubes 25 are lowered by means of the height adjustment drives 31 until their tips come to lie below the upper edge of the threshold, as indicated in position 85.

Um das Einblaserohr 25 im gewünschten Abstand etwa weniger Millimeter neben der Schwellenlängsseite zu zentrieren, wird der jeweilige Längsverstell-Antrieb 32 mit einem an der Regelventil-Anordnung 69 der Fig. 1 eingestellten, verminderten Druck beaufschlagt. Das Einblaserohr 25 bewegt sich nun auf die Schwelle 83 zu. Da der Rückfluss-Ölstrom aus dem Längsverstell-Antrieb 32 das Drosselrückschlag-Ventil 70 passieren muss, entsteht in der Leitung 67 ein dynamischer Druck, welcher sofort nach Anschlag des Rohres 25 - Position 86 - an der Schwellenseite abfällt. Darauf spricht der druckempfindliche Schalter 73 an und gibt ein Signal an das Magnetventil 74 ab. Dieses beaufschlagt die Kammer 75 der Rückschlag-Zylinder-Kolben-Anordnung 66, wodurch sich der Kolben 77 nach vorne bewegt und eine dem Kammervolumen entsprechende Ölmenge an den Längsverstell-Antrieb 32 abgibt, wodurch das zugeordnete Einblaserohr 25 um das Mass 87 von der Schwelle 83 weggerückt wird (Position 88). Das Signal des Schalters 73 gelangt auch zum Zeitverzögerungs-Relais 64, welches nach einer kurzen Verweilzeit - während der die Zentrierbewegung ausgeführt wird - über das Proportional-Magnetventil 65 den Höhenverstell-Antrieb 31 in Tätigkeit versetzt. Das Einblaserohr 25 wird nun so weit abgesenkt, bis seine Austrittsöffnung 79 mit dem Hohlraum unterderSchwelle6 bzw.83 übereinstimmt (Position 89 in Fig. 8, gleiche Position wie Fig. 5).In order to center the blowing pipe 25 at the desired distance about a few millimeters from the longitudinal side of the threshold, the respective longitudinal adjustment drive 32 is acted upon by a reduced pressure set on the control valve arrangement 69 in FIG. 1. The blowing pipe 25 now moves towards the threshold 83. Since the return flow of oil from the longitudinal adjustment drive 32 has to pass the throttle check valve 70, a dynamic pressure is created in the line 67, which drops immediately after the pipe 25 stops - position 86 - on the threshold side. The pressure-sensitive switch 73 responds to this and outputs a signal to the solenoid valve 74. This acts on the chamber 75 of the non-return cylinder-piston arrangement 66, as a result of which the piston 77 moves forward and delivers an amount of oil corresponding to the chamber volume to the longitudinal adjustment drive 32, as a result of which the associated injection pipe 25 is measured by the dimension 87 from the threshold 83 is moved away (position 88). The signal from the switch 73 also reaches the time delay relay 64 which, after a short dwell time - during which the centering movement is carried out - sets the height adjustment drive 31 into operation via the proportional solenoid valve 65. The injection tube 25 is now lowered until its outlet opening 79 coincides with the cavity below the threshold 6 or 83 (position 89 in FIG. 8, same position as FIG. 5).

Die Regelung der Schotterdosierung wird dabei gleichzeitig wie folgt durchgeführt:

  • Das Schaltersignal beaufschlagt über das Zeitverzögerungs-Relais 64 den Antrieb 53 der zugehörigen Dosiervorrichtung 33, welcher den Schnecken-Förderer 55 in Bewegung setzt. Dieser ist so ausgebildet, dass bei einer Umdrehung pro Sekunde etwa ein Kilogramm Bettungsmaterial zum Schotter-Auslass 57 befördert wird. Auf diese Weise kann sehr einfach durch Zählung der Schnecken-Umdrehungen und zeitgerechtes Abschalten des Antriebes 53 durch dem Impulszähler 54 die erforderliche Menge sehr genau bemessen werden. Gleichzeitig mit dem Auslösen des Dosiervorganges wird die Luftzufuhr im Einblaserohr 25 aktiviert. Der aus dem Luftzuführ-Rohr 81 (Fig. 5) austretende Luftstrom bläst-insbesondere während und in der Endphase der Schottereinbringung - die durch den Schlauch 51 herabfallenden Schotter- oder Splittkörner in den Hohlraum unter die Schwelle 6 bzw. die Betonschwelle 83.
The regulation of the ballast metering is carried out simultaneously as follows:
  • The switch signal acts via the time delay relay 64 on the drive 53 of the associated metering device 33, which sets the screw conveyor 55 in motion. This is designed such that approximately one kilogram of bedding material is conveyed to the ballast outlet 57 at one revolution per second. In this way, the required quantity can be measured very precisely by counting the screw revolutions and switching off the drive 53 in a timely manner by means of the pulse counter 54. At the same time as the dosing process is triggered, the air supply in the blowing tube 25 is activated. The air flow emerging from the air supply pipe 81 (FIG. 5) blows - particularly during and in the final phase of the ballast introduction - the ballast or grit grains falling through the hose 51 into the cavity below the threshold 6 or the concrete threshold 83.

Bei Abschaltung des Antriebes 53 wird über den Impulszähler 54 ein Steuersignal an das Zeitverzögerungs-Relais 64 abgegeben. Nach einer kurzen Verzögerungszeit, welche notwendig ist, damit die letzten Schotterkörner von der Dosiervorrichtung 33 in das Einblaserohr 25 fallen können, unterbricht das Relais 64 die Luftzufuhr und beaufschlagt das Proportional-Magnetventil 65 zum Heben des jeweiligen Rohres 25 auf Referenzhöhe. Erst wenn sich alle Einblaserohre 25 auf Referenzhöhe befinden, fährt die Maschine zur nächsten Bearbeitungsstelle vor.When the drive 53 is switched off, a control signal is sent to the time delay relay 64 via the pulse counter 54. After a short delay, which is necessary so that the last gravel grains can fall from the metering device 33 into the blowing pipe 25, the relay 64 interrupts the air supply and acts on the proportional solenoid valve 65 to raise the respective pipe 25 to the reference height. The machine only moves to the next processing point when all the blowing tubes 25 are at the reference height.

Bei Registrierung einer Schotterblockierung oder eines Schotterstaues (z.B. infolge verklumpten Schotters od.dgl.) im Rohrquerschnitt durch das in Fig. 5 ersichtliche Geber- oder Abtastelement 82 wird durch die angeschlossene Überwachungseinrichtung 40 die Rüttel-Vorrichtung 49 in Tätigkeit gesetzt und die Luftzufuhr erneut aktiviert.When registering a ballast blockage or a ballast accumulation (for example as a result of clumped ballast or the like) in the pipe cross section by the transmitter or scanning element 82 shown in FIG. 5, the vibrating device 49 is activated by the connected monitoring device 40 and the air supply is reactivated .

Beim Bearbeiten von Holzschwellen ist der gesamte Arbeitsvorgang gleich. Lediglich das Mass 87 - der Abstand zwischen dem Einblaserohr 25 und der Schwelle-kann, bedingt durch den rechteckigen Querschnitt der Holzschwelle, kleiner bemessen sein. Aus diesem Grund weist die Rückschlag-Zylinder-Kolben-Anordnung 66 die weitere, kleinere Kammer 76 auf. Vor Beginn des Arbeitsablaufes kann nun die Zentriervorrichtung 63 so eingestellt werden, dass durch das Signal des Schalters 73 über das Magnetventil 74 die Kammer 76 beaufschlagt wird. Mittels der nach vorne ragenden Kolbenstange des Kolbens 78, dessen Verstellweg sich etwa bis zur Zuleitung zur Kammer 75 erstreckt, wird der vordere Kolben 77 zwangsweise mitbewegt und so eine dem - kleineren - Kammervolumen entsprechende Ölmenge in den Längsverstell-Antrieb 32 gedrückt. Das Ausmass der Zentrierbewegung bei Holzschwellen ist somit etwas kleiner als bei der Bearbeitung von Betonschwellen.When processing wooden sleepers, the entire process is the same. Only the dimension 87 - the distance between the blowing pipe 25 and the threshold - can be made smaller due to the rectangular cross section of the wooden sleeper. For this reason, the check cylinder-piston arrangement 66 has the further, smaller chamber 76. Before starting the workflow, the centering device 63 can now be set so that the signal from the switch 73 via the solenoid valve 74 acts on the chamber 76. By means of the forwardly projecting piston rod of the piston 78, the adjustment path of which extends approximately up to the feed line to the chamber 75, the front piston 77 is forcibly moved and thus an oil quantity corresponding to the - smaller - chamber volume is pressed into the longitudinal adjustment drive 32. The extent of the centering movement with wooden sleepers is therefore somewhat smaller than with the processing of concrete sleepers.

Durch die Bemessung Längs-Führungen 44 entsprechend zumindest einem Schwellenabstand bzw. durch entsprechendes Bemessen des Abstandes ihrer einander zugewandten Enden ist es möglich, das Blas-Aggregat 24 für die Bearbeitung sowohl von einzelnen Schwellen, Doppelschwellen - etwa bei Schienenstössen - als auch von zwei unmittelbar benachbarten Schwellen 6 bzw. 83 einzusetzen. Ferner erlaubt die voneinander unabhängige Verstellbarkeit der einzelnen Einblaserohre 25 auch eine Bearbeitung von schräg liegenden Schwellen, wobei das Grundmass von der Bedienerkabine aus manuell eingestellt werden kann. Der weitere Arbeitsablauf, wie Zentrieren und Einblasen, wird durch die Steuereinrichtung 39 selbsttätig gesteuert. Weiter können durch die voneinander unabhängige Querverstellung der beiden Blas-Aggregate 24 entlang ihrer Querführungen 26 die einzelnen Einblaserohre 25 auch bei veränderten Bedingungen, z.B. Spurweitenänderungen in Kurven, genau an die jeweilige Schiene bzw. Schwelle herangeführt bzw. zentriert werden, um auch eine Beschädigung der Gleisbauteile und der Einblaserohre 25 zu vermeiden.By dimensioning longitudinal guides 44 corresponding to at least one sleeper spacing or by appropriately dimensioning the spacing of their mutually facing ends, it is possible to directly blow unit 24 for the processing of both individual sleepers, double sleepers - such as rail joints - and two use adjacent sleepers 6 and 83. Furthermore, the mutually independent adjustability of the individual injection tubes 25 also permits processing of inclined thresholds, the basic dimensions being able to be set manually from the operator's cabin. The further workflow, such as centering and blowing, is controlled automatically by the control device 39. Furthermore, due to the mutually independent transverse adjustment of the two blowing units 24 along their transverse guides 26, the individual blowing pipes 25 can also be operated under changed conditions, e.g. Track width changes in curves are brought up to the respective rail or sleeper or centered in order to avoid damage to the track components and the injection pipes 25.

Claims (15)

1. A travelling track correcting machine (1) comprising a track lifting unit provided on the machine frame (2) and designed to be actuated by a drive with the aid of a reference system and at least one blowing unit (24) comprising a support frame (28) connected to the machine frame (2) for at least one injection tube (25) designed to penetrate into the ballast bed on the left and right of the rail (5) on one longitudinal side of the particular sleeper (6) after step-by-step advance and to be charged with the bedding material from a storage container (35) for blowing in additional bedding material, such as ballast, chippings or the like, said injection tube (25) comprising at outlet opening (79) at its tapered lower end in its flattened side facing the sleeper (6) and being designed for vertical displacement by a drive connected to a control unit (39) and a metering unit (33) connected to a drive (53) being arranged between the storage container (35) and the injection tube (25) to dispense a quantity of ballast measured in accordance with the prescribed degree of lift, characterized in that the blowing unit (24) comprises a support frame (28) with the two injection tubes (25) vertically displaceable relative thereto, which support frame is connected to a drive (27) for displacement transversely of the track and in that the injection tubes (25) are designed for independent vertical and longitudinal displacement and are connected to their own vertical and longitudinal displacement drives (31, 32) and are also connected to their own metering units (33) designed to be actuated by a drive (53), the control unit (39) being designed for independent actuation of the drives of each injection tube and each metering unit.
2. A machine as claimed in Claim 1, characterized in that a blowing unit (24) associated with each rail (5) and designed for independent displacement transversely of the track by a drive (27) in the form of a hydraulic cylinder-and-piston assembly is provided on the machine frame (2), being equipped with a total of four independently vertically and longitudinally displaceable injection tubes (5) designed to penetrate into the ballast bed on the left and right of the particular rail (5) at the particular outer longitudinal side of two immediately adjacent sleepers (6 and 83).
3. A machine as claimed in Claim 1 or 2, characterized in that each blowing unit (24) is mounted with its support frame (28) for displacement on transverse guides (26) of the machine frame (2) and is pivotally connected to the double-acting hydraulic cylinder-and-piston drive (27) and in that each injection tube (25) is mounted on an intermediate support (45) which is equipped with a vertical guide (47) extending perpendicularly of the plane of the track and consisting of two parallel columns and which is designed for displacement on a longitudinal guide (44) extending longitudinally of the track and also consisting of two parallel horizontal columns and is connected to a double-acting hydraulic piston-and-cylinder vertical and longitudinal displacement drive (31, 32).
4. A machine as claimed in Claim 3, characterized in that the vertical and longitudinal guides (47, 44), best of round cross-section, with the associated intermediate supports (45) of two injection tubes (25) adjacent one another transversely of the track and arranged one behind the other longitudinally of the track are arranged in mirror symmetry to the particular longitudinal or transverse central vertical plane running through the blowing unit.
5. A machine as claimed in any of Claims 1 to 4, characterized in that the stroke length of the track longitudinal displacement drive (32) ,or the longitudinal guide (44) on the support frame (28) is measured to correspond at least to the sleeper crib width or the sleeper interval.
6. A machine as claimed in any of Claims 2 to 5, characterized in that each longitudinal guide (44) of a blowing unit (24) designed to work simultaneously on two adjacent sleepers (6 and 83) is measured to correspond at least to the size of a sleeper interval, the two facing ends of the two longitudinal guides (44) arranged one behind the other longitudinally of the track being arranged at a distance from one another which is at least equal to or larger than twice the width of a sleeper (6 or 83).
7. A machine as claimed in any of Claims 1 to 6, characterized in that, for each track longitudinal displacement drive (32), there is provided a centring unit (63) for centring the associated injection tube (25) towards the sleeper (6 or 83) or sleeper edge, this centring unit comprising a return cylinder-and-piston assembly (66) which is connected to a control block (68) of the control unit and which is designed to be actuated on contacting the sleeper by the injection tube (25) longitudinally displaceable relative thereof.
8. A machine as claimed in Claim 7, characterized in that the preferably hydraulic return cylinder-and-piston assembly (66) of the centring unit (63) is connected to a magnetic valve (74) controllable by signal from a pressureless switch (73) for a centring or return movement by the track longitudinal displacement drive (32).
9. A machine as claimed in Claim 8, characterized in that, for adjusting various degrees of return, the return piston-and-cylinder assembly (66) is in the form of a double-acting piston return cylinder (for example for wooden or concrete sleepers) with two cylinder chambers (75, 76) of different volume connected to the magnetic valve (74) by pipes.
10. A machine as claimed in any of Claims 1 to 9, characterized in that each metering unit (33) designed to be actuated its own drive consists of a cylindrical housing (52) with a screw conveyor (55) operable through the drive (53), a common ballast distributing dome (34) designed to be charged with ballast from the storage container (35) via a laterally pivotal conveyor belt (38) being arranged over the individual metering units (33) of which there are eight in all.
11. A machine as claimed in any of Claims 1 to 10, characterized in that the preferably hydraulic drive (53) of each metering unit (33) is designed to be actuated via a pulse counter (54) for controlling the screw revolutions adjustable as required in accordance with the desired or necessary volume of ballast and in that the cylinder housing (52) is provided with an upwardly open ballast inlet (56) and a ballast outlet (57) connected at its lower end to the injection tube (25) and is arranged with its longitudinal axis at a slightly upward incline with the ballast outlet (57) provided at the end of the housing.
12. A machine as claimed in any of Claims 8 to 10 and 11, characterized in that the pulse counter (54) with the hydraulic drive associated with the metering unit (33) is connected via the control unit (39) to the vertical displacement drive (31 ) of the injection tube (25) and the centring unit (63), the pulse counter (54) being controllable in dependence upon a signal from the control block (68) and the vertical displacement drive (31) being controllable in dependence upon a signal from the pulse counter (54) for the metering unit (33) by way of a time-delay relay (64).
13. A machine as claimed in any of Claims 1 to 12, characterized in that it is provided with a monitoring unit (40) for supplying the injection tubes (25) vibratable by a shaking mechanism (49) with compressed air, the monitoring unit being connected to transmitting or scanning elements (28) arranged in the upper part of the injection tubes to blow the injective tubes free when blocked with ballast.
14. A machine as claimed in any of Claims 1 to 13, characterized in that, in its tapered lower part, the injection tube (25) has an outlet opening (79) of which the cross-section is only equal to or just slightly larger than the remaining round free cross-section of the injection tube (25) and in that the lower end of the injection tube is pointed on all sides.
15. A machine as claimed in any of Claims 1 to 14, characterized in that an air supply pipe (81) is provided in the lower part of the injection tube, of which the outlet (80) is arranged in the peripheral zone opposite the outlet opening (79) and of which the inlet is connected to a compressed-air source for briefly admitting compressed air to the injection tube, more especially during and in the final stage of the ballast placement process.
EP84890224A 1984-11-21 1984-11-21 Track reconditioning apparatus with at least one pneumatic device for blowing bedding material Expired EP0185834B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT84890224T ATE31760T1 (en) 1984-11-21 1984-11-21 TRACK CORRECTION MACHINE WITH AT LEAST ONE BLOWING UNIT FOR BLOWING IN BALDING MATERIAL.
DE8484890224T DE3468461D1 (en) 1984-11-21 1984-11-21 Track reconditioning apparatus with at least one pneumatic device for blowing bedding material
EP84890224A EP0185834B1 (en) 1984-11-21 1984-11-21 Track reconditioning apparatus with at least one pneumatic device for blowing bedding material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84890224A EP0185834B1 (en) 1984-11-21 1984-11-21 Track reconditioning apparatus with at least one pneumatic device for blowing bedding material

Publications (2)

Publication Number Publication Date
EP0185834A1 EP0185834A1 (en) 1986-07-02
EP0185834B1 true EP0185834B1 (en) 1988-01-07

Family

ID=8193164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84890224A Expired EP0185834B1 (en) 1984-11-21 1984-11-21 Track reconditioning apparatus with at least one pneumatic device for blowing bedding material

Country Status (3)

Country Link
EP (1) EP0185834B1 (en)
AT (1) ATE31760T1 (en)
DE (1) DE3468461D1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0436757B1 (en) * 1990-01-10 1992-12-30 Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. Railway track tamping machine
GB9116769D0 (en) * 1991-08-02 1991-09-18 Northern Eng Ind Improvements in railway track maintenance machinery
US5584641A (en) * 1994-05-26 1996-12-17 Pandrol Jackson, Inc. Stone metering system for railroad track maintenance vehicle
US5577446A (en) * 1995-02-14 1996-11-26 Pandrol Jackson, Inc. Stoneblower having adjustable workheads and improved blowing tubes
US6334396B2 (en) * 1999-08-02 2002-01-01 Pandrol Jackson, Inc. Switch stoneblower
CN109108601B (en) * 2018-09-17 2024-01-05 北京好运达智创科技有限公司 Automatic sleeper blowing, oil dripping and cover covering equipment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE810032C (en) * 1949-08-20 1951-08-06 Deutsche Bundesbahn Method for filling under railway sleepers
FR2190122A5 (en) * 1972-06-21 1974-01-25 Pouget Robert
AT373647B (en) * 1982-02-09 1984-02-10 Plasser Bahnbaumasch Franz TRACK CORRECTION MACHINE FOR INFLATING BED MATERIAL

Also Published As

Publication number Publication date
DE3468461D1 (en) 1988-02-11
EP0185834A1 (en) 1986-07-02
ATE31760T1 (en) 1988-01-15

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