JPH0681302A - Track bed renovator - Google Patents

Abstract

PURPOSE:To improve workability by separating the ballast fed to a roller conveyor from a vibration ripper into large and small sizes at the gap section between rollers, returning the large ballast within the standard to a track bed, and recovering the small ballast into a carriage. CONSTITUTION:A carriage 3 is advanced in the advance direction 15, a vibration ripper 7 is vertically vibrated, and the ballast 17 at the bottom section of a track bed is mounted on a roller conveyor 20. The ballast 18 smaller than the standard in the ballast 17 is dropped from a gap between stepped rollers 8 of the conveyor 20, and it is removed and conveyed to the carriage 3 by a chain conveyor 6. The ballast 19 in the standard is moved on the rollers 8 without being dropped, it flows on a slant plate 21, and it is left on the track bed behind. The size in the width direction of the carriage 3 is reduced, this track bed renovator can be used at a narrow position such as in a tunnel, no succeeding classifier is required, the efficiency can be improved, and the plugging of the rollers 8 can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ballast excavator of a railway repair device, and more particularly to a ballast excavating and removing mechanism for a ballast excavator.

[0002]

2. Description of the Related Art A conventional roadbed replacement machine is shown in FIGS.
FIG. 5 is a side view before the replacement work, FIG. 6 is a plan view before and after the insertion of the undercutter 55, and FIG. 7 is a front view after the insertion. In this device, a tray 54, a rotating shaft 53, and a belt conveyor 57 are mounted on a frame 52 that is installed so as to project in front of a carriage 51. A curved under cutter 55 is attached to the rotary shaft 53, and a chain cutter 56 having a plurality of blades is attached around the under cutter 55. Further, a motor 58 for driving the chain cutter 56 is installed above the under cutter 55.

The work procedure is as follows. First, the motor 58 is rotated to rotate the chain cutter 56 around the under cutter 55. In this state, the undercutter 55 set in parallel with the rail 61 is inserted into the ballast 59 under the sleeper 60 by rotating it about a quarter circle around the rotation shaft 53 and directly facing the rail 61.

During the replacement work, the bogie 51 is moved forward, and the ball cutter 59 under the sleeper 60 is continuously excavated by the chain cutter 56 rotating at this time, and the excavated ballast 59 is scraped up above the frame 52. . The scraped ballast 59 falls into the tray 54 and is conveyed by the belt conveyor 57 into the carriage 51 at the rear.

Thereafter, the subsequent equipment performs classification, supply of new ballast, compaction, etc., and the replacement work is completed.

[0006]

DISCLOSURE OF THE INVENTION In the prior art,
Since the ballast is excavated and scraped up by the chain cutter, the following problems occur. (B) It becomes so wide that it is impossible to work inside a tunnel. (B) The efficiency is poor because all ballasts are scraped up.

It is an object of the present invention to provide a railway roadbed replacement machine having a small device size in the width direction of the bogie and having high work efficiency.

[0008]

[Means for Solving the Problems] A ballast smaller than a standard size is adopted by adopting an excavating mechanism with a vibration ripper having a narrow width and a fine-grain ballast eliminating mechanism by an L-shaped chain conveyor, and a roller conveyor including stepped rollers. Discharge only into the trolley.

[0009]

The ballast is placed on the roller conveyor composed of stepped rollers by vibrating the ripper. The size in the vehicle width direction can be reduced by using the vibration ripper. By using the stepped roller, it is possible to eliminate only fine-grained ballast (ballast smaller than the standard) without clogging, and the ballast within the standard is sent to the rear of the device and remains on the track as it is. After the removal of all ballasts, classification by subsequent equipment is unnecessary.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. 1 is an overall side view, FIG. 2 is a front view, and FIG. 3 is a plan view of a vibration ripper and a roller conveyor portion. In the figure, a dolly 3 installed on a rail 1 via wheels 2.
An arm 5 is attached to the outer side of the sleeper 4 vertically downward on the side of, and a chain conveyor 6 for eliminating the ballast 18 smaller than the standard is installed along the arm 5. A frame 9 is attached to the tip of the arm 5.

The frame 9 is provided with a vibration rib 7 at the tip, a vibrator 10 and a drive motor on the side, and supports the shaft ends of a plurality of stepped rollers 8 forming a roller conveyor 20 on both sides of the frame 9. is doing. The stepped roller 8 has a structure in which the large diameter portions 8a and the small diameter portions 8b are alternately arranged at equal intervals, and a plurality of stepped rollers 8 are left with a gap enough to allow a ballast 18 smaller than the standard to pass therethrough. The part 8a and the small diameter part 8b are engaged with each other. It is attached to the frame 9 in this state. Further, the rearmost stepped roller 8 is connected to the drive motor 1
1, and the power is transmitted to each roller via the transmission gear 14. The rotation direction is the direction in which each roller sends ballast backward. Further, the inclined plate 21 is installed so as to be connected to the rearmost stepped roller, and the horizontal portion of the chain conveyor 6 passes below the inclined plate 21. Below the rear end of the frame 9, the chain conveyor 6 moves horizontally in proximity to the roadbed bottom 16, and on the side of the frame 9 and the trolley 3 runs vertically along the arm 5. The chain conveyor 6 is covered with a conveyor case 13 so that discharged ballast does not spill.

The procedure for replacing the ballast is shown below. The carriage 3 is moved forward in the traveling direction 15. At this time, the vibration ripper 7 is vertically vibrated by the vibration exciter 10 so that the floor bottom 16
Then, the ballast 17 is scraped up and placed on the roller conveyor 20. Next, the ballast 18 smaller than the standard in the ballast 17 moving on the roller conveyor 20 is the stepped roller 8
It is dropped from the gap between them, removed by the chain conveyor 6 traveling from the rear, and conveyed to the carriage 3. On the other hand, the in-standard ballast 19 moves on the stepped roller 8 without dropping, flows on the inclined plate 21, and remains on the rear roadbed.

Reference numeral 12 is a sprocket for the chain conveyor 6. The above-mentioned scraping, classifying and excluding work are continuously performed as the carriage 3 advances.

[0014]

INDUSTRIAL APPLICABILITY The roadbed replacing machine according to the present invention is supported by being suspended from a bogie, and the ballast under the sleepers is cut out and discharged into the carriage as the bogie moves. From a ripper, a roller conveyor provided behind the vibration ripper, an inclined plate provided behind the roller conveyor, a horizontal portion arranged below the inclined plate and a vertical portion on the side of the carriage. Comprising a chain conveyor, and as the roller conveyor, a plurality of stepped rollers in which a large diameter portion and a small diameter portion are alternately arranged,
Arranged so that the large diameter portion and the small diameter portion of the adjacent stepped rollers face each other with a predetermined gap maintained, and the ballast sent from the vibration ripper to the roller conveyor is larger than the gap between the stepped rollers on the same roller conveyor. And small ones,
A large one flows backward on the inclined plate, and a small one falls from the gap between the stepped rollers and is discharged into the carriage through the chain conveyor.
It has the following effects. (A) The size of the truck in the width direction becomes smaller and it can be used in narrow places such as in tunnels. (B) The classifying mechanism using the stepped rollers makes it possible to eliminate only the ballast that is smaller than the standard, and it is not necessary to provide a subsequent classifying device, and the efficiency is improved. (C) Each stepped roller in the roller conveyor has the same rotation direction, but since the circumferential directions of the shafts in the gaps between the rollers are opposite to each other, clogging does not occur.

[Brief description of drawings]

FIG. 1 is an overall side view of an embodiment of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a plan view of a vibration ripper and a roller conveyor portion shown in FIG.

FIG. 4 is a side view of the vicinity of the vibrator of FIG.

FIG. 5 is a side view of a conventional roadbed replacement machine.

FIG. 6 is a plan view of FIG.

FIG. 7 is a side view of the roadbed replacement machine of FIG. 5 in a working state.

[Explanation of symbols]

 3 dolly 4 sleepers 6 chain conveyor 7 vibration ripper 8 stepped roller 8a large diameter part 8b small diameter part 17 ballast 18 ballast smaller than standard 19 ballast within standard 20 roller conveyor 21 slant plate

Claims (1)

[Claims] 1. In a roadbed replacement machine, which is hung from a bogie and is supported by a bogie, and the ballast under the sleeper is cut out and discharged into the bogie while the bogie is moving, a vibration ripper for scooping the ballast under the sleeper and a vibrating ripper A roller conveyor provided at the rear, an inclined plate provided at the rear of the roller conveyor, and a chain conveyor comprising a horizontal portion arranged below the inclined plate and a vertical portion on the side of the carriage, As the roller conveyor, a plurality of stepped rollers in which a large diameter portion and a small diameter portion are alternately arranged, are arranged so that the large diameter portion and the small diameter portion of the adjacent stepped rollers face each other with a predetermined gap maintained, The ballast sent from the vibration ripper to the roller conveyor is separated by the roller conveyor into a larger one and a smaller one between the stepped rollers, and the larger one flows backward on the inclined plate and is small. A roadbed replacement machine characterized in that the stuff is dropped from the gap between the stepped rollers and discharged into the trolley via the chain conveyor.