JPH08189005A - Road floor ballast recovery device - Google Patents

Abstract

PURPOSE: To enhance work efficiency by rotating a scraping-up rotor so that ballast can be scraped up by a hydraulic motor, by detecting the pressure of pressure oil being supplied to the hydraulic motor, and when a pressure rise due to overload is caused, by once reversing the hydraulic motor. CONSTITUTION: When ballast W is scraped up by a scraping-up rotor 13 of a scraping-up part 11, if the rotation of the rotor 13 is brought into an excessive load condition due to the scraping-up clogging of the ballast W or the like, a pressure detecting means 25 detects the rise in the pressure oil being supplied to a scraping-up hydraulic motor 14, and once the rotation of the hydraulic motor 14 is reversed by means of a hydraulic control means 27, and the rotor 13 is reversed to push out the ballast W for eliminating the clogging condition, and again it is normally turned to carry out the scraping-up rotation. Thus, the scraping-up operation by the rotor 13 can be smoothed, and even if the ballast W may be various sizes of crushed stone, gravel, or the like, it can be properly scraped up and can be efficiently recovered. By using a pressure switch 26 as the pressure detecting means 25, the pressure rise can be easily detected, and also by providing a means for controlling the reversing time of the hydraulic motor 14, after reversing for a prescribed time, the motor can be securely turned in the normal rotation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ballast ballast recovery device used for exchanging ballasts made of crushed stones forming a roadbed of a railroad track.

[0002]

2. Description of the Related Art Conventionally, in recovering ballast discharged laterally by excavating from the bottom of a rail by excavating parts during this type of ballast replacement work, the discharged ballast is called a pisuke and scoop. It is picked up and conveyed on a conveyor, or the discharged ballast is immediately sucked by a suction pipe and conveyed for a long distance.

[0003]

However, in the case of the work of picking up with a pisuke and a scoop by human power and carrying it on a conveyor, since the work posture is middle waist and heavy labor, it may cause great pain to the worker, It is easy to get tired and it is difficult to continue the work for a long time. Therefore, the work efficiency is reduced and the labor shortage in recent years is combined with the work delay. In addition, when the ballast is immediately sucked and conveyed by the suction pipe, the discharge amount of the ballast excavated and discharged from the excavation part is unavoidably irregular, which may cause a blockage phenomenon in the suction pipe. However, there is an inconvenience that the work may have to be interrupted.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem, and the gist thereof is to excavate a ballast under a rail forming a roadbed of a railroad track so that a rail side is formed. An excavation part capable of discharging toward one side, a scraping part composed of a scrubbing rotor for scraping up the ballast discharged by the excavating part, and a conveyor part capable of transporting the ballast scraped up by the scraping part. Therefore, a hydraulic motor for raking for raking and rotating the raking rotor above the raking, pressure detecting means for detecting the pressure of pressure oil supplied to the hydraulic motor, and pressure due to overload by the pressure detecting means. There is provided a ballast ballast recovery device including: a hydraulic control unit that temporarily reverses the scratching hydraulic motor when a rise occurs.

Further, a pressure switch can be used as the pressure detecting means, and it is desirable to provide a reverse rotation time control means for controlling the reverse rotation time of the raking hydraulic motor.

[0006]

[Operation] The ballast under the rail forming the roadbed of the railroad track is excavated by the excavation section and discharged to the side of the rail.
The ballast discharged by the excavation part is continuously scraped up by the scraping rotor on the scraping part, and the ballast scraped up by the scraping part is conveyed by the conveyor part. When the rotation of the raking rotor becomes overloaded due to clogging of the ballast during ballast scraping by the upper rotor, the pressure detecting means detects the rise of pressure oil to the hydraulic hydraulic motor for scraping, and the hydraulic control means scrapes the oil. The raking hydraulic motor that rotates the rotor once reversely operates.

A pressure switch can be easily detected by using a pressure switch as the pressure detecting means, and a reverse time control means for controlling the reverse rotation time of the hydraulic hydraulic motor for scratching is provided to reverse the pressure for a predetermined time. It can be surely rotated normally.

[0008]

1 to 5 show an embodiment of the present invention, in which 1 is an excavation section, in which case moving guide plates 2 are arranged on the left and right sides on a sleeper N on which a rail R is mounted. A support frame 4 is movably supported in a suspended state on a guide plate 2 via a support fitting 3 having a guide roller 3a, and an excavation strip 6 driven by a hydraulic motor 5 is attached to both sides of the support frame 4. It circulates around the wheel shaft 4a so as to circulate, and forms a digging protrusion 7 on the surface of the digging strip body 6, while allowing the reaction force receiving body 9 to move freely through a support metal fitting 8 having a guide roller 8a on the moving guide plate 2. The propelling cylinders 10 are mounted on the left and right sides of the reaction force receiving body 9 while being supported in a suspended state.
0a is connected to the support frame 4.

Therefore, a part of the ballast W consisting of the crushed stones forming the track M is taken out, the excavation part 1 is arranged in the void portion, and the reaction force receiving body 9 is brought into contact with the ballast W rearward in the traveling direction. The excavation strip 6 is pressed against the ballast W ahead of the traveling direction by driving the propulsion cylinder 10, the excavation strip 6 is circulated in this state, and the ballast W is scraped out by the excavation protrusions 7 to the side. And the rod of the propulsion cylinder 10 is caused to project in response to this scraping to gradually advance the support frame body 4, the hydraulic motor 5 is stopped at the stroke end of the propulsion cylinder 10, and then the support frame body Four
Is fixed to the track M by fixing means (not shown), the rod of the propulsion cylinder 10 is retracted to move the reaction force receiving body 9 forward, and the movement guide plate 2 is moved forward to move the reaction force receiving body 9 The ballast W composed of a new crushed stone group is supplied to the rear of the rail, and the same stepping operation is repeated thereafter to excavate the ballast W under the rail R and continuously discharge the ballast W to the side of the rail R.

Reference numeral 11 denotes a scraping upper portion. In this case, a mounting member 12 is mounted on the support frame 4, a scraping rotor 13 is mounted on the mounting member 12, and the scraping rotor 13 is mounted on the rotor shaft 13.
A plurality of raking rods 13b are provided on the outer periphery of a, and a raking hydraulic motor 14 is mounted on the upper part of the mounting member 12. The raking hydraulic motor 14 has a main shaft 14a and a rotor shaft 13a. The ballast W scraped out from the excavation unit 1 and discharged through the chain mechanism 15 is scraped up by the scraping rotation of the scraping rotor 13 toward the rear in the traveling direction which is the orthogonal direction. is there.

Reference numeral 16 denotes a conveyor portion. In this case, the base end portion of the transfer conveyor 17 is attached to the mounting member 12 so that the turning position can be adjusted, and the transfer conveyor 17 is provided with a V-shaped crosspiece capable of upward circulation. A hydraulic motor 19 which is formed of a belt 18 with a crosspiece and which allows the rotation of the crosspiece belt 18 to circulate is provided, and the front end of the transfer conveyor 17 is mounted on a carriage 20. A hydraulic motor 23, which is mounted so that its swivel position can be adjusted, is formed by a belt 22 with a crosspiece having a V-shaped crosspiece capable of traveling upward, and that the rotation speed of the collection conveyor 21 is circulated, and the rotation speed is variable. Provided,
In addition, the take-out conveyor 24 reaching the collection position is arranged in front of the collection conveyor 21.

Further, in this case, a pressure detecting means 25 for detecting the pressure of the pressure oil supplied to the hydraulic motor 14 for scratching is connected, and in this case, a pressure switch 26 is used. When a pressure increase due to a load occurs, a hydraulic control means 27 is connected to reversely operate the raking hydraulic motor in a reverse direction.

Further, in this case, a reverse rotation time control means 28 including a timer for controlling the reverse rotation time of the hydraulic hydraulic motor 14 for scratching is connected to the hydraulic pressure control means 27.

Since this embodiment has the above-mentioned structure, the ballast W under the rail R forming the roadbed M of the railroad track is excavated laterally by the excavation protrusions 7 by the circulation traveling of the excavation strip 6 of the excavation section 1. The ballast W continuously scraped out by the excavating unit 1 and discharged laterally continuously by the excavation unit 1 is scraped up by the scraping rod 13b by the rotation of the scraping rotor 13 of the scraping upper portion 11, and the scraping upper portion 13b. The ballast W that is continuously scraped up by 11 is the conveyor 1 of the conveyor unit 15.
7 is sprung onto the belt 18 with crosspieces,
Is carried by the belt 22 with crosspieces of the collecting conveyor 21, and then is carried to a predetermined collecting position through the take-out conveyor 24 and collected.

Therefore, since it can be recovered without manual labor, the operator is not inflicted with pain, and the work efficiency can be remarkably improved, and the excavation section 1, the scraping section 11 and the conveyor section 16 are obviously improved. Due to the structure of merging with each other, it is possible to easily install and work even in a narrow railway line portion without taking up an installation space, and it is possible to increase the flexibility of work.

Moreover, the ballast W continuously scraped out from the excavation unit 1 is temporarily lifted by the scraping rotor 13 of the scraping upper portion 11.
Since the ballast W continuously scraped up by the scraping upper part 11 is conveyed by the conveyor part 16 by the rotation of the scraping part 11, the scraping rotor 13 rotates so that crushed stones of various sizes, gravel, etc. Even the ballast W can be satisfactorily scraped up and recovered, and the recovery efficiency can be improved by preventing uncollected residue, and the work efficiency can be further improved.

Particularly, when the ballast W is scraped up by the scraping rotor 13 of the scraping upper portion 11 and the rotation of the scraping rotor 13 is overloaded due to clogging of the scraping ballast W or the like, the pressure detecting means 25 scratches. Upper hydraulic motor 1
4 is detected, the hydraulic pressure control means 27 causes the hydraulic hydraulic motor 14 for scratching to reversely rotate once, and the reverse rotation causes the scratching rotor 13 to reversely rotate and push out the ballast W to eliminate the clogging phenomenon. This causes normal rotation again and rotation for scraping. Therefore, the scraping operation by the scraping rotor 13 can be smoothly performed, and scraping can be performed well even for ballast W made of crushed stones of various sizes and gravel. It can be collected efficiently.

Further, by using the pressure switch 26 as the pressure detecting means 25, the pressure rise can be easily detected, and by providing the reverse rotation time control means 28 for controlling the reverse rotation time of the hydraulic pressure motor 14 for scratching, a predetermined value is provided. After reversing the time, it can be surely rotated in the normal direction, and the recovery work can be performed more smoothly.

The present invention is not limited to the structure shown in the above-mentioned embodiment, but the structure of the scraping rotor 13 and the like are appropriately modified and designed.

[0020]

As described above, according to the present invention, since it can be recovered without human power, it does not cause any pain to the worker, and the work efficiency can be remarkably improved, and the excavation part, the scraped part and the conveyor part can be remarkably improved. Since it is a structure that merges with each other, it can be easily installed and worked even in a narrow railroad track portion without taking up an installation space, and it is possible to enhance the flexibility of work, especially the ballast by the scraping rotor of the scraping upper part. When the rotation of the raking rotor becomes overloaded due to the ballast being clogged up due to scratching, etc., the pressure detecting means detects the rise of the pressure oil to the raking hydraulic motor,
By the hydraulic control means, the hydraulic motor for scratching is reversely operated in the reverse direction, and the reverse rotation causes the reverse rotation of the scratching rotor to push the ballast forward to eliminate the clogging phenomenon, and the normal rotation again causes the scraping to rotate. Therefore, the scraping operation by the scraping rotor can be smoothly performed, and even ballasts of various sizes such as crushed stone and gravel can be scraped well and efficiently collected.

Further, a pressure switch can be easily detected by using a pressure switch as the pressure detecting means, and a reverse time control means for controlling the reverse rotation time of the raking hydraulic motor is provided to reverse the predetermined time. After that, it can be surely rotated in the normal direction, and the recovery work can be performed more smoothly.

As described above, the intended purpose can be sufficiently achieved.

[Brief description of drawings]

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

FIG. 2 is an overall front sectional view of the embodiment shown in FIG.

FIG. 3 is a partially enlarged front view of the embodiment shown in FIG.

FIG. 4 is a partial perspective view of the embodiment shown in FIG.

5 is a hydraulic block system diagram of the embodiment shown in FIG. 1. FIG.

[Explanation of symbols]

 M track bed W ballast R rail 1 excavation part 11 scraping part 13 scraping rotor 14 scraping hydraulic motor 16 conveyor part 25 pressure detecting means 26 pressure switch 27 hydraulic control means 28 reverse rotation time control means

Claims (3)

[Claims] 1. A digging portion capable of digging ballast under a rail forming a roadbed of a railroad track and discharging the ballast to the side of the rail, and a scraping rotor for scraping up the ballast discharged by the digging portion. A raking hydraulic motor for lifting and rotating the raking rotor of the raking upper part, comprising a raking part and a conveyor part capable of transporting the ballast scraped up by the raking upper part, and the raking The pressure detecting device includes pressure detecting means for detecting the pressure of the pressure oil supplied to the hydraulic motor, and hydraulic control means for temporarily rotating the raking hydraulic motor in the reverse direction when the pressure detecting means causes a pressure increase due to overload. A ballast ballast recovery device characterized by the above. 2. The ballast ballast recovery device according to claim 1, wherein a pressure switch is used as the pressure detecting means. 3. The ballast ballast recovery device according to claim 1, further comprising a reverse rotation time control means for controlling a reverse rotation time of the hydraulic hydraulic motor for raking.