EP0732450B1 - Railway construction vehicle - Google Patents

Railway construction vehicle Download PDF

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Publication number
EP0732450B1
EP0732450B1 EP96890028A EP96890028A EP0732450B1 EP 0732450 B1 EP0732450 B1 EP 0732450B1 EP 96890028 A EP96890028 A EP 96890028A EP 96890028 A EP96890028 A EP 96890028A EP 0732450 B1 EP0732450 B1 EP 0732450B1
Authority
EP
European Patent Office
Prior art keywords
hydraulic motor
track
hydraulic
gear box
axle
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 - Lifetime
Application number
EP96890028A
Other languages
German (de)
French (fr)
Other versions
EP0732450A1 (en
Inventor
Josef Theurer
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
Publication of EP0732450A1 publication Critical patent/EP0732450A1/en
Application granted granted Critical
Publication of EP0732450B1 publication Critical patent/EP0732450B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a track construction vehicle with a machine frame supported on two rail bogies, a driving cabin, a loading area and a loading crane adjustable by drives.
  • Such track construction vehicles referred to as motor tower wagons or superstructures, have proven themselves very well for carrying out various smaller track construction work and are generally known in many constructive and functional variations.
  • the object of the present invention is now to create a track construction vehicle of the generic type, with which even higher traction forces can be transmitted to the track with relatively little additional construction effort.
  • each individual rail undercarriage is assigned its own manual transmission, a hydraulic motor for torque transmission to the manual transmission and a tachometer for detecting the speed of a wheel axis of the rail undercarriage, and in that both tachometers are connected to an overspeed safety device which is exceeded when exceeded a limit speed leads to an automatic pressure relief of both hydraulic motors.
  • Such a combination of features makes it possible to transfer relatively high traction forces to the track, including structurally simple rail bogies, in particular also single-axle bogies.
  • overloading of the manual transmission when a rail undercarriage is skid is reliably ruled out with the aid of the overspeed protection.
  • the use of two of each other Separate gearboxes also have the particular advantage that free space for the installation of work units can easily be created below the machine frame.
  • a track construction vehicle 1 has a machine frame 3 supported on two uniaxial rail undercarriages 2, a driving and crew cabin 4, a loading area 5 and a loading crane 7 which can be adjusted in height and on the side by drives 6. Between the two rail carriages 2 and below the machine frame 3, a sleeper changing device 8 is provided for changing sleepers 9 of a track 10.
  • a motor 11 provided for the energy supply drives hydraulic pumps 13 via a pump distributor gear 12.
  • One of these hydraulic pumps 13 is connected via corresponding hydraulic lines 14 to two hydraulic motors 15, each of which is assigned to a rail carriage 2.
  • Each hydraulic motor 15 flanged to the underside of the machine frame 3 is connected via a cardan shaft 16 to a gearbox 17 also flanged to the machine frame 3.
  • Another propeller shaft 18 is provided for transmitting a torque from the manual transmission 17 to an axle drive 19 of the rail undercarriage 2.
  • a tachometer 21 serves to record the speed of a wheel axle 20 of the rail undercarriage 2 and is connected to an overspeed safety device 22. This is also connected to a control unit 23 which controls the two hydraulic motors 15. A hydrostatic short-circuit slide 24 is assigned to each hydraulic motor 15.
  • the drive technology described has the particular advantage that relatively high traction forces can be transmitted to the track 10 with relatively little design effort, in a particularly advantageous manner, below the machine frame 3, the creation of free space for installing work units, such as e.g. the aforementioned threshold changing device 8 is possible.
  • the overspeed safety device 22 in connection with the exceeding of a limit speed leads to an immediate pressure relief of both hydraulic motors 15, for example by setting the pivoting angle of the hydraulic pump 13 to 0 °.
  • the hydraulic motor 15 assigned to the skidding rail running gear 2 is braked immediately and a speed which is adapted to the driving speed and is permissible for the manual transmission 17 is reached very quickly.
  • the pivoting angle of the hydraulic pump 13 is automatically pivoted back to 0 ° and the hydrostatic short-circuit slide 24 is acted upon, as a result of which the hydraulic motor 15 becomes load-free.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Motor Power Transmission Devices (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)
  • Control Of Fluid Gearings (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Jib Cranes (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Chain Conveyers (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The rail vehicle in which each individual running gear unit (2) has its own control drive (17). A hydraulic motor (15) and a revolution indicator (21) determines the rotational speed of a wheel axle (20). Both indicators are connected to excess speed safety input (22) such that on exceeding a given boundary speed both hydraulic motors are automatically relieved of pressure. The control drive is joined by a cardan shaft (16,18) to the hydraulic motor and to an axle drive (19) of the running gear.

Description

Die Erfindung betrifft ein Gleisbaufahrzeug mit einem auf zwei Schienenfahrwerken abgestützten Maschinenrahmen, einer Fahrkabine, einer Ladefläche und einem durch Antriebe verstellbaren Ladekran.The invention relates to a track construction vehicle with a machine frame supported on two rail bogies, a driving cabin, a loading area and a loading crane adjustable by drives.

Derartige als Motor-Turmwagen oder Oberbauwagen bezeichnete Gleisbaufahrzeuge haben sich zur Durchführung verschiedener kleinerer Gleisbauarbeiten sehr bewährt und sind in vielen konstruktiven und funktionellen Variationen allgemein bekannt.Such track construction vehicles, referred to as motor tower wagons or superstructures, have proven themselves very well for carrying out various smaller track construction work and are generally known in many constructive and functional variations.

Die Aufgabe der vorliegenden Erfindung liegt nun in der Schaffung eines Gleisbaufahrzeuges der gattungsgemäßen Art, mit dem unter relativ geringem konstruktivem Mehraufwand auch höhere Traktionskräfte auf das Gleis übertragbar sind.The object of the present invention is now to create a track construction vehicle of the generic type, with which even higher traction forces can be transmitted to the track with relatively little additional construction effort.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß jedem einzelnen Schienenfahrwerk ein eigenes Schaltgetriebe, ein Hydromotor zur Drehmomentübertragung auf das Schaltgetriebe sowie ein Drehzahlmesser zur Erfassung der Drehzahl einer Radachse des Schienenfahrwerkes zugeordnet ist, und daß beide Drehzahlmesser mit einer Überdrehzahlsicherung in Verbindung stehen, die bei Überschreiten einer Grenzdrehzahl zu einer automatischen Druckentlastung beider Hydromotoren führt.This object is achieved in that each individual rail undercarriage is assigned its own manual transmission, a hydraulic motor for torque transmission to the manual transmission and a tachometer for detecting the speed of a wheel axis of the rail undercarriage, and in that both tachometers are connected to an overspeed safety device which is exceeded when exceeded a limit speed leads to an automatic pressure relief of both hydraulic motors.

Durch eine derartige Kombination von Merkmalen besteht die Möglichkeit, unter Einbeziehung von konstruktiv einfachen Schienenfahrwerken, insbesondere auch Einachsfahrwerken, relativ hohe Traktionskräfte auf das Gleis zu übertragen. Damit kann das üblicherweise zur Durchführung von verschiedenen kleinen Gleisbauarbeiten eingesetzte Gleisbaufahrzeug auch zur Durchführung von kleineren Zug- bzw. Schubarbeiten herangezogen werden. Insbesondere in diesem Zusammenhang wird eine Überlastung des Schaltgetriebes bei einem Schleudern eines Schienenfahrwerkes mit Hilfe der Überdrehzahlsicherung zuverlässig ausgeschlossen. Die Verwendung von zwei voneinander getrennten Schaltgetrieben hat auch den besonderen Vorteil, daß unterhalb des Maschinenrahmens problemlos Freiraum für den Einbau von Arbeitsaggregaten geschaffen werden kann.Such a combination of features makes it possible to transfer relatively high traction forces to the track, including structurally simple rail bogies, in particular also single-axle bogies. This means that the track construction vehicle usually used to carry out various small track construction works can also be used to carry out smaller pulling or pushing works. In this context in particular, overloading of the manual transmission when a rail undercarriage is skid is reliably ruled out with the aid of the overspeed protection. The use of two of each other Separate gearboxes also have the particular advantage that free space for the installation of work units can easily be created below the machine frame.

Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Further advantageous embodiments of the invention result from the subclaims.

Im folgenden wird die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher beschrieben.The invention is described in more detail below with reference to an embodiment shown in the drawing.

Ein Gleisbaufahrzeug 1 weist einen auf zwei einachsigen Schienenfahrwerken 2 abgestützten Maschinenrahmen 3, eine Fahr- und Mannschaftskabine 4, eine Ladefläche 5 sowie einen durch Antriebe 6 höhen- und seitenverstellbaren Ladekran 7 auf. Zwischen den beiden Schienenfahrwerken 2 und unterhalb des Maschinenrahmens 3 ist eine Schwellenwechselvorrichtung 8 zum Auswechseln von Schwellen 9 eines Gleises 10 vorgesehen.A track construction vehicle 1 has a machine frame 3 supported on two uniaxial rail undercarriages 2, a driving and crew cabin 4, a loading area 5 and a loading crane 7 which can be adjusted in height and on the side by drives 6. Between the two rail carriages 2 and below the machine frame 3, a sleeper changing device 8 is provided for changing sleepers 9 of a track 10.

Ein für die Energieversorgung vorgesehener Motor 11 treibt über ein Pumpenverteilergetriebe 12 Hydropumpen 13 an. Eine dieser Hydropumpen 13 steht über entsprechende Hydraulikleitungen 14 mit zwei Hydromotoren 15 in Verbindung, die jeweils einem Schienenfahrwerk 2 zugeordnet sind. Jeder an der Unterseite des Maschinenrahmens 3 angeflanschte Hydromotor 15 ist über eine Gelenkwelle 16 mit einem ebenfalls am Maschinenrahmen 3 angeflanschten Schaltgetriebe 17 verbunden. Eine weitere Gelenkwelle 18 ist zur Übertragung eines Drehmomentes vom Schaltgetriebe 17 auf ein Achsgetriebe 19 des Schienenfahrwerkes 2 vorgesehen.A motor 11 provided for the energy supply drives hydraulic pumps 13 via a pump distributor gear 12. One of these hydraulic pumps 13 is connected via corresponding hydraulic lines 14 to two hydraulic motors 15, each of which is assigned to a rail carriage 2. Each hydraulic motor 15 flanged to the underside of the machine frame 3 is connected via a cardan shaft 16 to a gearbox 17 also flanged to the machine frame 3. Another propeller shaft 18 is provided for transmitting a torque from the manual transmission 17 to an axle drive 19 of the rail undercarriage 2.

Ein Drehzahlmesser 21 dient zur Erfassung der Drehzahl einer Radachse 20 des Schienenfahrwerkes 2 und steht mit einer Überdrehzahlsicherung 22 in Verbindung. Diese steht außerdem noch mit einer die beiden Hydromotoren 15 steuernden Steuereinheit 23 in Verbindung. Jedem Hydromotor 15 ist ein hydrostatischer Kurzschlußschieber 24 zugeordnet.A tachometer 21 serves to record the speed of a wheel axle 20 of the rail undercarriage 2 and is connected to an overspeed safety device 22. This is also connected to a control unit 23 which controls the two hydraulic motors 15. A hydrostatic short-circuit slide 24 is assigned to each hydraulic motor 15.

Die beschriebene Antriebstechnik hat den besonderen Vorteil, daß bei relativ geringem konstruktivem Aufwand relativ hohe Traktionskräfte auf das Gleis 10 übertragbar sind, wobei in besonders vorteilhafter Weise unterhalb des Maschinenrahmens 3 die Schaffung von Freiraum zum Einbau von Arbeitsaggregaten, wie z.B. der genannten Schwellenwechselvorrichtung 8, möglich ist. Um ein Schleudern und eine damit verbundene Überlastung des Schaltgetriebes 17 zu verhindern, führt die Überdrehzahlsicherung 22 in Verbindung mit der Überschreitung einer Grenzdrehzahl zu einer sofortigen Druckentlastung beider Hydromotoren 15, indem beispielsweise der Verschwenkwinkel der Hydropumpe 13 auf 0° eingestellt wird. Dadurch wird der dem schleudernden Schienenfahrwerk 2 zugeordnete Hydromotor 15 sofort gebremst und sehr rasch eine der Fahrgeschwindigkeit angepaßte und für das Schaltgetriebe 17 zulässige Drehzahl erreicht.The drive technology described has the particular advantage that relatively high traction forces can be transmitted to the track 10 with relatively little design effort, in a particularly advantageous manner, below the machine frame 3, the creation of free space for installing work units, such as e.g. the aforementioned threshold changing device 8 is possible. In order to prevent skidding and the overloading of the gearbox 17 associated therewith, the overspeed safety device 22 in connection with the exceeding of a limit speed leads to an immediate pressure relief of both hydraulic motors 15, for example by setting the pivoting angle of the hydraulic pump 13 to 0 °. As a result, the hydraulic motor 15 assigned to the skidding rail running gear 2 is braked immediately and a speed which is adapted to the driving speed and is permissible for the manual transmission 17 is reached very quickly.

Vor Durchführung eines Schaltvorganges wird automatisch der Verschwenkwinkel der Hydropumpe 13 auf 0° zurückgeschwenkt und der hydrostatische Kurzschlußschieber 24 beaufschlagt, wodurch der Hydromotor 15 lastfrei wird.Before a switching operation is carried out, the pivoting angle of the hydraulic pump 13 is automatically pivoted back to 0 ° and the hydrostatic short-circuit slide 24 is acted upon, as a result of which the hydraulic motor 15 becomes load-free.

Claims (3)

  1. A track maintenance vehicle (1) comprising a machine frame (3) supported on two on-track undercarriages (2), a driver's cab (4), a loading area (5), and a loading crane (7) adjustable by means of drives (6), characterized in that associated with each individual on-track undercarriage (2) is a separate gear box (17), a hydraulic motor (15) for torque transmission to the gear box (17), and a tachometer (21) for detecting the rate of rotation of a wheel axle (20) of the on-track undercarriage (2), and that both tachometers (21) are connected to an overspeed safety device (22) which causes an automatic relief of pressure in both hydraulic motors (15) if a critical rate of rotation is exceeded.
  2. A vehicle according to claim 1, characterized in that the gear box (17) is connected to the hydraulic motor (15) and to an axle transmission (19) of the on-track undercarriage (2) by a respective cardan shaft (16,18).
  3. A vehicle according to claim 1 or 2, characterized in that a hydrostatic shorting plunger (24) is associated with each hydraulic motor (15).
EP96890028A 1995-03-16 1996-03-01 Railway construction vehicle Expired - Lifetime EP0732450B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT46995 1995-03-16
AT469/95 1995-03-16

Publications (2)

Publication Number Publication Date
EP0732450A1 EP0732450A1 (en) 1996-09-18
EP0732450B1 true EP0732450B1 (en) 1997-11-19

Family

ID=3491444

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96890028A Expired - Lifetime EP0732450B1 (en) 1995-03-16 1996-03-01 Railway construction vehicle

Country Status (6)

Country Link
EP (1) EP0732450B1 (en)
AT (1) ATE160399T1 (en)
CZ (1) CZ285327B6 (en)
DE (1) DE59600048D1 (en)
DK (1) DK0732450T3 (en)
PL (1) PL180670B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19807756C2 (en) * 1998-02-24 2003-09-18 Deutsche Bahn Ag Track work vehicle with excavator head
AT520066A1 (en) 2017-05-18 2018-12-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Rail vehicle for carrying out a work on a track system
AT17665U1 (en) 2020-12-28 2022-10-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Rail vehicle and method for operating the rail vehicle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT351576B (en) * 1977-06-16 1979-08-10 Plasser Bahnbaumasch Franz MOBILE DEVICE FOR LAYING TRACKS
GB2022786B (en) * 1978-05-30 1982-09-02 Deere & Co Hydrostatic vehicle auxiliary wheel drive system
ATE31761T1 (en) * 1983-12-20 1988-01-15 Scheuchzer Fils Auguste PROCEDURE FOR RENOVATION OF TRACK SWITCHES AND RAILWAY DEVICE FOR ITS IMPLEMENTATION.
AT400729B (en) * 1990-08-24 1996-03-25 Plasser Bahnbaumasch Franz MACHINE FOR REPLACING THE SILLS OF A TRACK

Also Published As

Publication number Publication date
CZ36196A3 (en) 1996-10-16
DE59600048D1 (en) 1998-01-02
PL180670B1 (en) 2001-03-30
DK0732450T3 (en) 1998-01-05
EP0732450A1 (en) 1996-09-18
PL313148A1 (en) 1996-09-30
ATE160399T1 (en) 1997-12-15
CZ285327B6 (en) 1999-07-14

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