JP2002363901A - Track maintenance device for re-excavating ballast - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a specified track maintenance device capable of raising a track without causing any problem even if the length of the device is designed very short. SOLUTION: This device comprises an excavating device 7 for excavating the ballast 2 of the track 3 and a machine frame 5 capable of being moved on the track by a vehicle 4 on the track. Two vehicles 18 with crawlers disposed apart from each other in the lateral direction of the device are installed at the rear part 17 of the device 1 in the operating direction. The vehicles 18 with crawlers are connected to the machine frame 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a track maintenance device provided with a digging device for digging a trackbed material of a track, and having a machine frame movable on the track by a truck on the track.

[0002]

2. Description of the Related Art A track maintenance device of this kind is disclosed in
It is already known from 0-257003. The device is assembled on a machine frame traveling on a track.
At the rear end of the device with respect to the direction of movement, a drilling device consisting of an endless drilling chain guided around a track is arranged. The subgrade material excavated using this excavation chain is carried away by a conveyor device located on the machine frame.

[0003] Further, in JP-A-2000-290904, other similar devices can be seen.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a special device which can raise a track without problems even if the length of the device is designed to be very short.

[0005]

According to the invention, the object of the invention is to provide a device of the type described at the outset, which can be adjusted vertically by means of a drive and can be moved relative to one another in the transverse direction of the device. Two spaced tracked carriages are achieved by means of a device connected to the machine frame at the rear end of the device in the direction of movement.

The use of such track maintenance devices makes it possible to design devices with a particularly short wheelbase and a limited length, without adversely affecting the lifting of the tracks required by the drilling chain. . The truck with endless tracks allows the track to be lifted independently of the position of the truck on the rear track. Furthermore, after the work operation of the device,
Another device can then perform the work on the track without lifting the track again or without lowering the track on the construction surface (formation). Therefore, the construction surface (layer, layer part, formation) is protected,
It is not exposed to additional pressure (stress, deformation, stress).

[0007] Other advantages and features of the invention will become apparent from the dependent claims and the drawings.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail below with reference to an illustrated embodiment.

The track maintenance device 1 shown in FIGS. 1 and 2 for excavating track material 2 from a track 3 consists essentially of a machine frame 5 which is movable on a track 4 on a track. Device 1 with respect to the direction of movement (arrow 6)
The excavator 7 is arranged in the rear area. Drilling rig 7
Is equipped with a digging chain guided infinitely around the track 3 or on the track 4 and is vertically adjustable and rotatable by the drives 8,9. A track lift unit 12 having a lift driving device 11 and a cab 13 having a control device 14 are arranged between the two on-track vehicles 4. All drives and power drives 15
Is powered by an energy unit 16 located on the machine frame 5.

At the rear end 17 with respect to the operating direction of the device 1,
Two carriages 18 with tracks are arranged spaced apart from each other in the transverse direction of the device. These trucks with endless tracks 1
8 is located behind the rear track bogie 4 and has a drive 19
Each machine frame 5 so that it can be adjusted vertically by
Connected to. The bogie with endless track 18 is lifted when passing through (see the position indicated by the one-dot chain line).

Next, the operation of the track maintenance device 1 will be described briefly. During the work operation, the apparatus 1 is supported on the track 3 using the front track bogie 4, and the rear end 17 is supported on the construction surface 20 via the lowered bogie with endless track 18. The construction surface 20 is formed by the excavator 7. The excavation chain 10 of the excavator 7 includes a carriage 18 with an endless track.
The track bed material 2 is discharged via a discharge station 21 located between the vehicle and the rear track 4 onto a conveyor device 22 arranged on the machine frame 5 and extending in the longitudinal direction of the device. The conveyor device 22 transports the roadbed material 2 to the storage wagon 23. Since the device 1 is supported by the bogie 18 with endless tracks, it is not necessary to lower the track 3 and further work can be performed using a track maintenance device (not shown) that follows the device 1.

[Brief description of the drawings]

FIG. 1 shows a side view of a track maintenance device for digging track material.

FIG. 2 shows a simplified view of the device in the longitudinal direction of the track or in the direction of movement.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 track maintenance device 2 track material 3 track 4 track on track 5 machine frame 7 excavator 8 drive device 9 drive device 11 lift drive device 12 track lift unit 13 cab 14 control device 15 power drive device 16 energy unit 17 rear end 18 Truck with endless track 19 Drive device 20 Construction surface 21 Discharge station 22 Conveyor device 23 Storage wagon

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Josef Toyler Austria, Aer-1010 Wien, Johannesgasse No.3 (72) Inventor Herbert Bergetter Austria, Aer-4210 Garneukirchen, Galsberg No.41 F-term ( Reference) 2D057 CB08

Claims (5)

[Claims] An excavator (7) for excavating a bed material (2) of a track (3) and a machine frame (5) movable on the track (3) by an on-orbit truck (4). A track maintenance device (1) comprising two endless tracks (18) vertically adjustable by a drive (19) and spaced apart from each other transversely of the device. The track maintenance device is connected to the machine frame (5) at the rear end (17) with respect to the operation direction of (1). 2. The track maintenance device according to claim 1, wherein the bogie with endless track is disposed immediately after a bogie on a rear track. 3. The excavator (7), wherein a discharge station (21) is arranged between the bogie with tracks (18) and the bogie on track (4). Item 3. The track maintenance device according to item 1 or 2. 4. The excavator (7) comprises a drive (9)
4. The track maintenance device according to claim 3, wherein the track maintenance device is configured as an endless excavating chain (10) that is rotatable and guided around a rear track bogie (4). 5. 5. A track lift unit (12) for lifting said track (3) is provided in the area of a rear track bogie (4). A track maintenance device according to item 1.