JPH05339902A - Silencing track-maintenance method in track-maintenance machine - Google Patents

Abstract

PURPOSE:To lessen impact sound by means of air bubbles when tampers are penetrated into gravels by a method in which gravels including sleepers to be applied with tampers are covered with air bubbles packed into a bottomless frame. CONSTITUTION:Air bubbles 9 composed of surfactants and others are supplied through a supply pipe 10 from an air-bubbling device to a bottomless frame 6 for packing. The frame 6 is set on a tamper device for track-maintenance work. A cylinder 7 is operated on the lower sleepers 1 where the tamper device is positioned, and the frame 6 packed with bubbles 9 is lowered to a given position. Four sets of tampers 5 are instantly lowered by an operation mechanism to before and back the sleepers 1 and penetrated into gravels before and back the sleeper 1 through the air bubbles 9 in the frame 6. The tips of the tampers 5 are positioned below the sleeper 1 and a level-correcting operation for a series of rails is made.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a noise-remaining maintenance method for a track maintenance machine in which railway track positions are sequentially corrected in railways such as Kinki Nippon Railway and JR.

[0002]

2. Description of the Related Art Generally, in railways, railroads (tracks) are constructed by laying gravel and lining sleepers at regular intervals, and mounting rails thereon. Since heavy trains and trains often pass through this rail in urban areas on a daily basis, the rail sinks together with the sleepers as the days pass, and the rails that must maintain a certain level also reach the level at each position. It causes madness. Therefore, conventionally, in order to correct the deviation of this level, a track maintenance machine has been used to correct the rail level at regular intervals.

As a method of correcting the rail level by this track maintenance machine, as shown in FIGS. 6 to 10, a tamping device b provided on the side of the track maintenance machine a is used. That is, a rail level measuring device (not shown) mounted on the track maintenance machine a measures how much the lower rail c where the tamping device b is located has to be corrected, and the tamping device b is adjusted according to the correction value. The rail c can be lifted up together with the sleeper d by controlling and operating the rail.

Explaining the operation of the tamping device b at that time, the tamping tools e located on the left and right of each rail c before and after one sleeper d are instantly thrust into the gravel f by the operating mechanism. At that time, the tip end g of the tamping tool e is located below the lower end of the sleeper d.
Next, the tamping tools e facing each other forward and backward through the sleepers d are vibrated and moved so as to sandwich the sleepers d, and the gravel f is packed under the sleepers d by the tamping tools e. This raises the level of the sleepers d together with the rails c. After that, the tamping tool e is pulled up to the original position, the track maintenance machine a is moved,
The above operation is repeated at the next sleeper position. In this way, the above work was repeated for each sleeper juxtaposed at regular intervals to correct the rail level. The above working time per sleeper is about 5 seconds.

[0005]

However, in the case of performing the above work, when the tamping tool e is thrust into the portion of the gravel f between the sleepers, the tamping tool e is gravel f.
The collision sound generated when hitting the vehicle is 100 decibels at a distance of 1 m from the place, 90 at a distance of 3 m to 7 m.
A high decibel sound is heard.

This track maintenance work is usually performed in the middle of the night from the passage of the last train to the start of the first generator car. Therefore, in a mountainous area or in a place with few houses, even if a slightly high sound is generated, it does not cause much problem, but in urban areas where houses are densely populated, the above-mentioned high sound is generated in the middle of the night. It was a great nuisance for the residents along the line who were sleeping. The work company also offered to the residents along the line in advance, but there has been a problem during the work between the line residents and the work company.

The present invention was developed in view of the above-mentioned circumstances, and an object of the present invention is to reduce noise generated during track maintenance work by a track maintenance machine as much as possible and to disturb residents along the track. It is an object of the present invention to provide a noise-remaining maintenance method for a track-maintenance machine that enables track maintenance work without applying a load.

[0008]

In order to effectively achieve the above object, the present invention has the following structure. That is, sleepers are laid side by side at predetermined intervals on the gravel, and the track maintenance machine is moved on the track formed by mounting rails on the sleepers, and before and after the sleepers sequentially for each sleeper, Position a plurality of tamping tools of the tamping device mounted on the track maintenance machine, thrust each tamping tool into the gravel, vibrate and move each confronting tamping to sandwich the sleeper, and push the gravel under the sleeper. so,
In the track maintenance method by the track maintenance machine that raises the rail level at that position, the bottomless frame filled with bubbles such as surfactant is placed on the sleepers below the tamping device, and each tamping tool is The structure is such that the air bubbles in the frame body are allowed to pass through and penetrate into the gravel.

Further, a bag-like body is arranged along the outside of the tamping device mounted on the track maintenance machine, and the bag-like body is filled with bubbles made of a surfactant or the like. With the tip of the bag-shaped body filled in contact with the gravel surface of the track or in the vicinity thereof, the tamping device part of the track maintenance machine and the outside are shielded and soundproofed, and the track is shielded by this bag-shaped body. This is also a configuration in which the rail level correction work is performed by the tamping device inside the track maintenance machine.

[0010]

With the above-described structure, the tamping tool is covered by the bubbles filled in the frame so that the tamping tool can be covered with the gravel. When the tamping tool penetrates into the gravel, it is generated. The collision sound can be softened by the bubbles.

Further, by shielding the tamping device portion and the outside of the track maintenance machine with a bag-shaped body filled with air bubbles, when the tamping tool plunges into the gravel, a collision sound generated by hitting the gravel is generated. The spread can be reduced.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a noise-remaining maintenance method for a track maintenance machine according to the present invention will be described below with reference to FIGS.
See Fig. 10 for track maintenance equipment. Reference numeral 1 is a sleeper lined with gravel 2 and arranged at predetermined intervals, and 3 is a pair of rails mounted on the sleeper 1 so as to face each other at a predetermined interval. Etc.

Further, the tamping device 4 of the present invention of the track maintenance machine a is provided with a bottomless frame body 6 so as to surround each tamping tool 5 which operates as a set of four. The frame 6 can be moved up and down by a pair of cylinders 7. A brush 8 is planted on the outer periphery of the lower portion of the frame body 6, and when the frame body 6 is lowered, the brush 8 portion comes into contact with the upper surfaces of the gravel 2 and the sleeper 1 of the track. Bubbles 9 made of a surfactant or the like are supplied from a foaming device (not shown) to the frame 6 through a supply pipe 10 and filled therein. The tamping device 4 is equipped with the frame body 6 filled with the air bubbles 9 to perform the sound deadening and maintenance work.

That is, a rail level measuring device (not shown) mounted on the track maintenance machine a measures how much the lower rail 3 on which the tamping device 4 is located has to be corrected, and according to the corrected value. The tamping device 4 is activated. First, the cylinder 7 is operated on the lower sleeper 1 where the tamping device 4 is located, and the frame body 6 filled with the air bubbles 9 is lowered until the brush 8 portion comes into contact with the sleeper 1. Next, the tamping tools 5 operating as a set of four in front of and behind the sleeper 1 are instantly lowered by the operating mechanism to penetrate the bubbles 9 in the frame body and thrust into the gravel 2 in front of and behind the sleeper 1. The tip portion 5 a of the tamping tool 5 is located below the sleeper 1.

Next, the tamping tools 5 facing each other forward and backward via the sleeper 1 are vibrated and moved by a predetermined distance by the operating mechanism so as to sandwich the sleeper 1, and the gravel 2 is packed under the sleeper 1 and the rail 3 can be lifted up with sleeper 1. As a result, the level of the sleeper 1 is lifted together with the rail 3, and the desired rail level correction is performed.

After that, each tamping tool 5 is pulled up to its original position by the operating mechanism, the frame body 6 in the lowered state is dragged, and the track maintenance machine a is moved to the next sleeper position. Repeat the above operation to correct the rail level at that position. In this way, the above-mentioned work is repeated for each sleeper arranged side by side at regular intervals to correct the rail level. Also, if the bubbles 9 in the frame body 6 decrease as detected by a sensor or the like, they are replenished as needed.

As described above, when the surface of the gravel 2 or the sleeper 1 is covered with the bubbles 9 and the tamping tool 5 is thrust into the gravel 2, the collision noise generated when the tamping tool 5 hits the gravel 2 is generated. By mitigating by 9, it is possible to prevent the collision sound from being diffused and reduce it as much as possible.

FIG. 5 shows another embodiment. In this embodiment, a bag-shaped body 11 filled with the air bubbles 9 is provided outside the tamping device 4 arranged above each rail 3. There is. That is, in the bag-shaped body 11, one end of the sheet body 13 is fixed to a support member 12 provided above the tamping device 4 in the front-back direction of the track maintenance machine a, and the other end is above the support member 12. It is attached to the hoisting machine 14 arranged in the above and is in a state of hanging in a bag shape. The bubbles 9 are filled in the bag-shaped body 11 from a foaming device (not shown) through a supply pipe 10. By hoisting and unwinding the hoisting machine 14,
The outside of the tamping device 4 can be shielded or opened.

In the case of the above embodiment, when the tamping device 4 is operated to perform the rail level correction work as in the above embodiment, first, the bag-like body 11 filled with the air bubbles 9 is unwound and its tip is It contacts the gravel 2 or is lowered to the vicinity thereof, and the tamping device portion and the outside are shielded by the bag-like body 11 filled with the bubbles 9. Then, the tamping device 4 is operated as described above to perform the rail level correction work.

Also in this case, when the tamping tool penetrates into the gravel 2, the spread of the collision sound generated by hitting the gravel is mitigated by being shielded by the bag-shaped body 11, and like the above-mentioned embodiment, It is possible to reduce this collision sound that resonates along the railway line as much as possible.

[0021]

As described above, according to the sound deadening and wire keeping method of the present invention, the tamping tool covers the top of the gravel including the sleepers on which the tamping tool acts with the air bubbles filled in the bottomless frame, so that the tamping tool is placed in the gravel. The collision sound generated when the vehicle crashes into the vehicle can be mitigated by the bubbles, and the collision noise that sounds along the railway can be reduced as much as possible.

Further, by shielding the tamping device portion of the track maintenance machine and the outside with a bag-shaped body filled with air bubbles, when the tamping tool plunges into the gravel, a collision sound generated by hitting the gravel is generated. The spread is alleviated by being shielded by the bag-like body filled with the air bubbles, and this collision sound that resonates along the railway line can be reduced as much as possible.

[Brief description of drawings]

FIG. 1 is a schematic plan explanatory view of an essential part of an embodiment according to the present invention,

FIG. 2 is a front view of FIG.

FIG. 3 is an explanatory view of the tamping device and the frame body according to the embodiment of the present invention as seen from the sleeper end side;

FIG. 4 is an explanatory view of a tamping device and a frame body according to an embodiment of the present invention as seen from the longitudinal direction of the sleeper,

FIG. 5 is an explanatory view showing another embodiment according to the present invention,

FIG. 6 is an explanatory view showing an arrangement state of tamping tools in a conventional rail level correction work,

FIG. 7 is a front view of FIG.

FIG. 8 is a front view of a tamping device,

9 is a side view of FIG. 8,

FIG. 10 is a front view of the track maintenance machine,

[Explanation of symbols]

 1 ... Sleeper, 2 ... Gravel, 3 ... Rail 4 ... Tamping device, 5 ... Tamping tool, 5a ... Tip of tamping tool, a ... Track maintenance machine, 6 ... frame body, 9 ... bubbles, 11 ... bag-shaped body,

Claims (2)

[Claims] 1. A sleeper is lined up at a predetermined interval on gravel, and a track maintenance machine is moved on a track formed by mounting rails on the sleeper. To
Positioning a plurality of tamping tools of a tamping device mounted on the track maintenance machine, while rushing each tamping tool into the gravel, move each confronting tamping tool so as to sandwich the sleeper, gravel under the sleeper In a track maintenance method by a track maintenance machine that pushes in and raises the rail level at that position, a bottomless frame filled with bubbles such as a surfactant is placed on the sleeper below the tamping device, A sound deadening and keeping method in a track maintenance machine, characterized in that tamping is made to pass through the bubbles in this frame body and to plunge into the gravel. 2. A bag-shaped body is arranged along the outside of the tamping device mounted on the track maintenance machine, and the bag-shaped body is filled with air bubbles made of a surfactant or the like. The tamping device part of the track keeping machine is shielded from the outside by making the tip of the filled bag-like body contact with or near the gravel surface of the track, and the track keeping line is shielded by this bag-like body. The sound deadening and keeping method for a track maintenance machine according to claim 1, wherein the rail level correction work is performed by a tamping device in the machine.