EP1841919A1 - Method for cleaning the ballast of a track - Google Patents

Abstract

A method for cleaning ballast of a track comprising rails extending in a longitudinal direction is executed by means of a ballast cleaning machine having a machine frame supported on on-track undercarriages. The machine includes a cleaning chain with a chain cross member extending perpendicularly to the longitudinal direction. At the start of the cleaning process, an on-track undercarriage situated immediately ahead of the cleaning chain, with regard to a working direction of the ballast cleaning machine, is lifted off the track. The rails are severed, and the track is lifted, after which the chain cross member of the cleaning chain is positioned underneath the track. Finally, the on-track undercarriage is set down upon the track again.

Description

 METHOD FOR CLEANING THE SCOT OF A TRAIL.

The invention relates to a method for cleaning ballast of a

Rails having tracks, wherein at the beginning of Reinigungs¬

process the rails severed and after raising the track

a chain extending normal to a machine longitudinal direction

positioned at the bottom of a cleaning chain below the track

as well as a machine.

In the journal "Railway Engineer" (52) 8/2001, page 81 is

described such a procedure ("new excavation chain for bedding

cleaning machine RM 800 "), at the beginning of the cleaning

Track must be severed to the Kettenquertrum a speziel¬

len, very powerful cleaning chain in the ballast un¬

to be able to position below the track. Such a machine

is known for example from US Pat. No. 5,926,981, the machine being known from US Pat

in labor use at each end by a rail

landing gear is supported on the track. According to another, in Fig. 2

This version can be seen in the working direction before cleaning

Chain located rail chassis in the labor input of the chain

be distanced. According to US 4538 687, it is known that one of the cleaning chain unmit¬

Telable upstream rail chassis in labor perma¬

nent off the track. This is also in this section one

Bend line of the track for raising it possible. The ange¬

hoge rail chassis only serves for mobility

during the transfer drive to the machine within the

To be able to move clearance profiles.

The object of the present invention is now in the creation of a

Method of the type mentioned, with which even at shorter Ma¬

machines a problem-free positioning of the chain cross section below

of the track is possible.

This object is achieved according to the invention with a method of genus¬

proper manner achieved that prior to the positioning of Ket¬

tenquertrums below the track in the direction immedi

bar rail in front of the cleaning chain from

Track lifted and then wieder¬ for labor

to be put on the track.

This method is particularly suitable for machines, in particular

for use in track sections with tight curve radii vorge¬

see are. With the brief lifting of the end chassis

can the chain transverse strand with increase of the separated, in Arbeits¬

Direction of the front track section automatically deeper into the ballast bed work in until the working position is reached. For the subsequent

Work assignment, the front landing gear is again abge¬ on the track

lowers. Likewise, after completion of the work, the increase l of the chain traverse in reverse order feasible. This

Method makes possible the advantageous An¬ despite shorter machine length

Order of the screening plant immediately behind the cleaning chain.

Further advantages of the invention will become apparent from the dependent claims and

the description of the drawing.

In the following the invention is based on a dargestell¬ in the drawing

th embodiment described in more detail. Show it:

Fig. 1 and 2 each have a side view of a machine for cleaning

Gravel immediately before or during the cleaning process.

A machine 1 shown in Fig. 1 and 2 for cleaning ballast. 5

has a machine frame 2, at the ends 3 each one

Rail chassis 4 is arranged. An endless, by a drive 6 in

Rotation displaceable cleaning chain 7 has a normal working

extending to a machine longitudinal direction, below a track. 8

positioned chain traverse 9 on. Above it is one through ei¬

NEN drive 10 height-adjustable track lifting device 11 is arranged.

[0011] For the cleaning of the ballast 5, a screening plant 12 with a discharge

Waste conveyor belt 13 is provided. At - with respect to a working direction 19 -

front end 3 of the machine frame 2 is a work booth 14 with a control unit 15 is arranged. At the rear end 3 is a

Cab 16 with a conveyor belt 17 for the supply as needed

of new gravel. By the gravel cleaning accumulating overburden is

disposed of by means of a conveyor belt assembly 18.

At the front end 3 of the machine frame 2 is a hydraulic höhen¬

adjustable punch or drive 20 mounted on a working in the

direction 19 front machine frame 21 can be supported. On this be¬

there is an energy unit 22 for supplying power to the machine 1.

At the beginning of the work (see Fig. 1), the punch 20 beauf¬

strikes, causing it to raise the front end 3 of Ma¬

machine frame 2 and thus also to a lifting of the front

Rail chassis 4 comes from track 8. Then both

Rail 23 of the track 8 and severed in the direction of 19. vor¬

the track section of the severed track 8 is

Lifting device 26 as far raised until the chain transverse strand 9 problem¬

go between the raised front and the lower track section

is positionable. Under the action of the drive 6, the chain is the

Cleaning chain 7 set in rotation and these paral¬ by drives 24

lel lowered to a slow priority of the machine 1. In this Wei¬

the chain traverse 9 digs itself automatically into a ballast bed 25

until the desired position is reached below the track level

(Figure 2). The two severed rails 23 are connected by tabs

connected. The front rail chassis 4 is by retracting the

Stamp or drive 20 lowered onto the track 8. Under right of way

both coupled machine frame 2 and 21 now begins

the continuous process for cleaning the ballast 5. After Beendi¬

tion of the cleaning process is again a separation of the

Rails 23 and an increase of the front rail chassis 4 to

the chain cross run 9 for the transfer travel of the machine 1 to raise

can.

Claims

Claims

1. A method for cleaning gravel of a rail (23) haben¬

the track, where at the beginning of the cleaning process, the rails

(23) cut and after raising the track (8) a normal ei¬

ner machine longitudinal direction extending chain transverse strand (9) a

Cleaning chain (7) is positioned below the track (8), characterized

characterized in that prior to the positioning of the chain traverse (9)

below the track (8) in the working direction (19) immediately before the

Cleaning chain (7) located rail chassis (4) from the track (8)

lifted off and then for the work turn on the

Track (8) is turned off.

2. The method according to claim 1, characterized in that the Abhe¬

Ben of the rail chassis (4) from the track (8) a this Schienen¬

Chassis (4) adjacent end (3) of a machine frame (2) below

Support on a further, upstream in the working direction (19) Maschi¬

is raised (21).

3. Machine for cleaning ballast of a track (8) with a Maschinen¬

Frame (2), at a front and rear end (3) each a Schienen¬

Chassis (4) and between these a height-adjustable, endlessly trained

Cleaning chain (7), for carrying out the method according to claim 1, characterized in that between the front end (3) of Ma¬

machine frame (2) and a rear end (3) of a Ar¬ with respect

Beitsrichtung (19) upstream further machine frame (21) a höhen¬

adjustable drive (20) is provided.