JP4096135B2 - Rail cutting waste collection device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention efficiently collects the crushed residue (granular dust, lump) when the work hardened layer or wavy wear generated on the rail head is smoothed with a grindstone to smooth the rail head. Further, the present invention relates to an apparatus for recovering a cutting residue that does not adversely affect the environment and signal equipment on the track by preventing scattering to the surroundings.
[0002]
[Prior art]
The rail supports the stable running of the train as the train wheels roll and slide repeatedly. The surface of the rail head (rail top surface) is gradually hardened by rolling of the wheel, and a work hardened layer of material is formed over a thickness of approximately 0.05 to 0.3 mm of the rail surface. This work hardened layer is also called a rolling contact fatigue layer or a rolling fatigue failure layer, and becomes the nucleus of shearing scratches that cause rail breakage. In addition, when the train travels on a curved portion or performs acceleration power running and deceleration braking, wavy wear (the rail top surface wears in a wavy shape) occurs on the rail head due to the difference between the inner wheels of the wheel and the sliding of the wheel. Such work hardened layer or wavy wear is a troublesome flaw that causes rail breakage if left untreated, and causes noise during running.
[0003]
Therefore, conventionally, the rail top surface is corrected with a thickness of about 0.15 to 0.3 mm at a constant passing tonnage of train (approximately 40 to 50 million tons of passing tonnage), By removing the fatigue layer, problems such as rail breakage and noise during traveling are solved in advance.
[0004]
Thus, the conventional rail cutting device and the cutting scrap collecting device are as shown in the schematic longitudinal sectional front view of FIG. As shown in the figure, the rail cutting device 1 and the cutting scrap collecting device 2 are integrally formed, and straddle between the left and right rails 3a and 3b on the bottom side of the carriage of the rail cutting vehicle. And has a box-shaped dust collecting container 4 which is open only on the lower surface. A plurality of grinding wheels 5a, 5b and the like are arranged in the rail direction at positions facing the left and right rails 3a and 3b in the dust collection container 4. Box portions 6a and 6b are formed outside the rails 3a and 3b of the dust collection container 4 for collecting the cut chips. A duct 7 connected to a dust collector (not shown) is provided on the ceiling of the dust collection container 4.
[0005]
In the rail grinding device 1 and the grinding residue collecting device 2 configured as described above, when the rail top surface is ground by the grinding wheels 5a and 5b, the rail grinding front is the rail top surface and the inside thereof. The rail swarf scraped into a shape is blown off in the direction of the recovery boxes 6a and 6b, and a part of the scrap is recovered in the recovery boxes 6a and 6b. Further, the remaining granular swarf scatters in the dust collection container 4, a part of which is captured and separated by the dust collector through the duct 7, and the other part falls on the track by its own weight. The cutting residue dropped on the center of the track can be collected by receiving a suction action by the dust collector.
[0006]
[Problems to be solved by the invention]
As described above, in the conventional cutting waste collecting apparatus 2, a part of the granular cutting waste falls on the track, and a part of the fallen waste is sucked and collected by the dust collector, but in particular the rail 3a. , 3b has fallen to the outside and cannot receive the suction force of the dust collector and cannot be recovered. This is because a considerably large space is formed between the entire circumference of the dust collection container 4 and the raceway surface, and air is sucked from this space. This is because the force stops working. For this reason, the granular swarf residue that cannot be recovered has a problem that the train winds up with the wind pressure of the train every time the train passes at high speed, causing dust pollution to workers and the surrounding environment.
[0007]
Further, the grinding residue in the dust collection container 4 is a high temperature reddish after the grinding, and after being deposited and deposited on the inner peripheral surface of the dust collection container 4, it falls as a lump to the outside of the rail. It was. The red-heated cutting lump is burnt to the track circuit such as the signal line at the rail joint and causes heat damage to other safety equipment. For this reason, in the past, when a rail rectified vehicle has passed and a spot of red-heated swarf residue is found, it has relied on a manual operation in which the worker draws water from the bucket and cools it. However, in such a manual work, there is a risk that forgetting to collect occurs due to oversight of the cut residue and this causes a new thermal damage at the point where it is scattered and dropped by the train wind pressure or the like. In addition, workers have the problem that they are affected by the dust pollution of granular cutting residue that falls on the track and soars due to train wind pressure and the like.
[0008]
[Means for Solving the Problems]
The present invention is an improvement and removal in view of the above-mentioned conventional problems, and has developed a recovery container that can be hermetically sealed with the raceway surface, so that granular swarf can be efficiently recovered, The aim is to provide a technology that enables the cooling residue to be detected by detecting reddish lump of reddish residue with a temperature sensor.
[0009]
Thus, the means of claim 1 employed by the present invention to solve the above-mentioned problems is arranged on the lower surface side of the rail grinding vehicle so as to straddle the inside and outside of each of the left and right rails, and the lower surface side opens. Left and right collection containers, elastic shielding plates attached to the entire circumferential side of the collection container to make the space between the raceway surfaces airtight, and the elasticity that separates the collection container into the front and rear spare chambers and the central dust collection chamber A rail cutting waste collecting device comprising a partition plate, a plurality of air injection nozzles disposed in a central dust collecting chamber, and a duct communicating with the inside of a collecting container to a dust collector. According to this invention, the space between the raceway surfaces can be made airtight by the elastic shielding plate attached to the entire circumferential side surface of the collection container. Moreover, the inside of the collection container is partitioned by an elastic partition plate into front and rear spare chambers and a central dust collection chamber. The central dust collection chamber is subjected to interference from the rail fastening device, etc. Even in this case, airtightness is always maintained. In addition, the cutting dust is suspended from the raceway surface in the dust collection chamber by an air injection nozzle disposed in the central dust collection chamber. Therefore, the suction force of the dust collector can be sufficiently applied to the granular cutting residue that has fallen to the raceway surface outside the rail, and this can be reliably sucked and collected.
[0010]
The means of claim 2 adopted by the present invention is a base frame that is disposed between the left and right rails on the lower surface side of the rail grinding wheel and is framed in a predetermined shape, and a front frame of the base frame. A temperature sensor that is disposed on the lower surface of the unit and detects a mass of hot cutting residue, a spray nozzle for watering attached to the lower surface near the rear of the base frame corresponding to the inside and outside of the rail, and a base A rail cutting waste collecting device, characterized in that it is constituted by a magnetic member attached to the rear end side of the frame and adsorbing a block of cutting waste. In this invention, a block of high-temperature cutting residue can be detected by the temperature sensor, and can be cooled by spraying water from the spray nozzle. And it is possible to adsorb | suck the said lump of the cutting residue and to collect | recover this with magnetic members, such as an electromagnet. Such a detection method using a temperature sensor can prevent human error such as oversight.
[0011]
The means of claim 3 adopted by the present invention is characterized in that the rail cutting residue collecting device according to claim 1 is attached to a central portion in the front-rear direction of the base frame according to claim 2. This is a rail cutting waste recovery device.
In this invention, the granular cutting residue can be collected by the apparatus according to claim 1, and the high-temperature cutting residue can be collected by the apparatus according to claim 2, which are attached to one base frame. As a result, it is possible to collect all of the correction scraps with this apparatus.
[0012]
According to a fourth aspect of the present invention, there is provided a dust collecting container of a rail correcting device that is disposed between the left and right rails on the lower surface side of the rail correcting vehicle and that opens on the lower surface side. A brush member is disposed between the inner peripheral surface of the dust container and the outer surfaces of the left and right rails facing the dust container, and the lump of the cutting residue falling from the upper side of the dust collection container is received by the brush member and collected. This is a rail cutting waste collecting device characterized in that it is configured as described above. In the present invention, the brush member is disposed at the position where it falls by utilizing the property that debris corrected with a grindstone accumulates at a specific location of the dust collection container and drops as a lump. Therefore, it is possible to collect the lumps of cutting chips before they fall to the raceway surface.
[0013]
According to a fifth aspect of the present invention, the brush member is swingable and includes a driving means capable of feeding the received lumps of correction scraps to the collection box of the dust collecting container. It is a rail cutting waste collection apparatus of description.
By providing the brush member with a drive means for recovery, the lump of the cut residue can be automatically recovered in the recovery box of the dust collection container.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
The configuration of the present invention will be described below based on the embodiment of the invention shown in the drawings. 1 to 4 relate to a first embodiment of the present invention, and FIG. 1A is a side view of a rail grinding wheel 8 showing the entire rail grinding scrap collecting device, FIG. FIG. 2B is a side view of the rail-cutting scrap collecting device A, and FIG. 2 is a plan view of the rail-cutting scrap collecting device A. FIG. 3 shows an apparatus 9 for recovering granular cutting residue, in which FIG. (A) is a side view, FIG. (B) is a front view, and FIG. (C) is a plan view. Furthermore, FIG. 4 shows the apparatus 10 which collect | recovers a block-like cutting residue, FIG. (A) is the side view, FIG. (B) is a partial bottom view.
[0015]
As shown in each of these drawings, the rail cutting residue collecting apparatus A according to the first embodiment is arranged between the rail lower surface side of the rail cutting wheel 8 and the track, like the rail cutting apparatus 11. It is arrange | positioned and is arrange | positioned at the back of the rail grinding apparatus 11. FIG. The rail cutting residue collection device A includes a device 9 that collects granular cutting residue and a device 10 that collects block grinding residue, and these are integrally connected and connected.
[0016]
As shown in FIG. 3, the apparatus 9 for recovering the granular swarf residue has a recovery container 12 that is arranged corresponding to the left and right rails 3a and 3b and that opens on the lower surface side. An elastic shielding plate 13 made of hard rubber and a material having heat resistance and elasticity is disposed on the entire circumference of the collection container 12 up to the upper surface of the track. The elastic shielding plates 13 on both side surfaces of the collection container 12 have a rectangular shape formed by a single sheet. The elastic shielding plate 13 in the front-rear direction of the collection container 12 is divided into divided pieces 13a and 13b on both sides and a central divided piece 13c in which a through hole 14 having the same shape as the rails 3a and 3b is formed. .
[0017]
An elastic partition plate 18 that divides the inside of the collection container 12 into front and rear preliminary chambers 15 and 16 and a central dust collection chamber 17 is disposed inside the collection container 12. The material of the elastic partition plate 18 is the same as that of the elastic shielding plate 13, and, like the front and rear elastic shielding plates 13, the divided pieces on both sides and the central division in which the through holes having the same shape as the rails are formed. It is divided into pieces. In the dust collection chamber 17 of the recovery container 12, a plurality of injection nozzles 19 for ejecting compressed air are disposed. In this case, a total of four injection nozzles 19 are disposed back and forth so as to face the rail bottom surfaces of both sides of the rails 3a and 3b (see FIG. 3C). Further, the dust collection chamber 17 of the collection container 12 is provided with a duct 20 connected to the dust collector at the ceiling. The length of the dust collection chamber 17 in the rail direction is set to be equal to or less than the dimension between sleepers for the reason described later.
[0018]
On the other hand, as shown in FIGS. 2 and 4, the apparatus 10 that collects the block-like cutting residue has a base frame 21 that is framed in a predetermined shape such as a rectangular shape across the left and right rails 3 a and 3 b. have. The base frame 21 is formed in a rectangular shape on each rail 3a and 3b side, and the left and right rectangular shapes are connected to each other by the front and rear cross members 22a and 22b. Wheels 23 are respectively attached to the base frame 21 before and after the positions facing the left and right rails 3a and 3b so as to be able to travel on the rails 3a and 3b. Further, a temperature sensor 24 such as an infrared type is attached to the lower surface of the front side of the base frame 21 at a position facing the left and right rails 3a, 3b, and a spray nozzle 25 for watering is provided at a position near the rear. Is attached. Further, a rotationally driven electromagnet 26 is attached at a position behind the injection nozzle 25, and a collection box 27 is provided in the vicinity thereof. In addition, as shown in FIG. 1 (B) and FIG. 2, the apparatus 9 for collecting the granular swarf residue is provided between the cross members 22a and 22b facing the rails 3a and 3b of the base frame 21. It is installed between.
[0019]
Next, the operation | movement aspect of the rail cutting residue collection apparatus A comprised in this way is demonstrated. First, when the rail grinding wheel 8 arrives at the site and the top surfaces of the rails 3a and 3b are grounded by the dual rail type rail grinding device 11, a part of the granular grinding scraps is on the raceway surface. Fall to. Of the fallen granular cutting residue, the one dropped into the gauge is sucked and collected by a dust collector through a duct provided in the rail correction device 11. However, the granular cutting residue that has dropped to the outside of the rails 3a and 3b, in particular, remains on the track surface without being recovered due to insufficient suction force in the rail correcting device 11.
[0020]
However, in this embodiment, the granular cutting residue remaining on the raceway surface by the recovery device 9 of the rail correction waste recovery device A installed behind the rail correction device 11. To collect. That is, the recovery device 9 is such that the elastic shielding plates 13 provided on the entire circumferential side surface of the recovery container 12 are in close contact with the rails 3a or 3b, and the both side surfaces are the raceway surfaces. Since the top is covered, the inside of the collection container 12 can be kept sealed, and the suction action of the dust collector can be sufficiently increased. Further, the front-rear direction shielding plate 13 interferes with a rail fastening device 28 (spring clip, bolt, etc.) protruding from the upper surface of the sleeper and is lifted by this, and there is a possibility that the airtightness in the collection container 12 cannot be maintained. . However, since the inside of the collection container 12 is divided into three chambers in the front-rear direction, and the central chamber is a dust collection chamber 17 having a length shorter than the size between the sleepers, for example, the front-side shielding plate 13 is rail-fastened. Even if it is lifted up by the device 28, only the spare chamber 15 loses its airtightness, and the airtightness of the dust collecting chamber 17 and the spare chamber 16 can still be maintained. The rail fastening device 28 sequentially comes into contact with the partition plate 18 between the spare chamber 15 and the dust collecting chamber 17 as the rail grinding wheel 8 advances, and the dust collecting chamber 17 and the spare chamber 16 In this case, at least the airtightness of the dust collecting chamber 17 can be maintained. .
[0021]
In this way, when compressed air is injected from the injection nozzle 19 of compressed air while maintaining at least the airtightness in the dust collection chamber 17 of the collection container 12, in particular, the granular shape that falls on the inner and outer raceways of the rails 3a and 3b Most of the swarf debris rises and floats in the dust collection chamber 17. The suspended granular swarf is subjected to a sufficient suction action of the dust collector and is sucked and supplemented by the dust collector. After being separated by a bag filter or the like, it is collected. Therefore, with this recovery device 9, it is possible to efficiently recover almost all of the swarf on the granules dropped onto the raceway surface.
[0022]
On the other hand, in the dust collection container 4 of the rail correction apparatus 11, the red-heated granular correction residue accumulates and adheres to the inner surface of the container and falls to the outside in the vicinity of the rails 3a and 3b. This lump remains red hot and is quite hot. In this collection device A, it is possible to detect the red-heated cutting lump with the temperature sensor 24 attached to the lower surface of the front side of the base frame 21. The position at which this lump is detected is stored in a control device or the like that controls the entire apparatus, and when the subsequent spray nozzle 25 for watering reaches this position, water is sprayed to cool it. Yes. Then, the cooled lumps of correction scraps are further captured by the subsequent rotating electromagnet 26, and the energization to the magnet coil is cut off and collected in the collection box 27. In this way, the apparatus 10 for collecting the rail-cutting lump lump automatically finds the red-heated cutting lump lump and cools and collects it. Therefore, it is possible to prevent the signal circuit or the like from being burned out due to the red-heated cutting lump.
[0023]
FIG. 5 is a partial longitudinal cross-sectional front view showing a rail cutting residue collecting apparatus 29 according to a second embodiment of the present invention. The basic configuration of the rail sharpening device 1 (not shown in FIG. 5) is the same as the conventional one shown in FIG. Thus, in this embodiment, the brush member 30 that can withstand high temperatures, such as a wire brush, is provided between the correction waste collection box 6a of the dust collection container 4 and the head outer surface of the rail 3a. A drive means is provided which can be arranged to move the brush member 30 forward and backward and rotate within a range of a predetermined angle.
[0024]
Next, the operation mode of the recovery device 29 will be described . The granular cutting residue scattered in the rail outer direction by the grinding wheel of the rail correcting device 1 (see FIG. 6) is the inner peripheral surface of the dust collecting container 4. However, the dropping position is limited to the space between the rail 3 a and the collection box 6 a of the dust collection container 4. This is because the correction scraps in the gauge area are sucked and collected by the suction of the dust collector, and the correction scraps outside the gauge in the collection box 6a area are collected by this. Accordingly, in this embodiment, the red-heated cutting lump that falls into the space between the rail 3a and the collection box 6a is received by the brush member 30 and does not fall onto the raceway surface. Then, the brush member 30 flips up the lump of the correction scraps supplemented by intermittent driving or the like and transfers it to the collection box 6a. With such a recovery device 29, the red-heated cutting lump does not fall onto the raceway surface, and it is possible to prevent burning accidents such as signal circuits.
[0025]
By the way, this invention is not limited to embodiment mentioned above, A suitable change is possible. For example, the rail cutting residue collection apparatus A has been described in the case where the apparatus 9 that collects the granular cutting residue and the apparatus 10 that collects the reddish mass are integrally combined. You may comprise independently, and you may make it provide the said rail cutting residue collection apparatus A and the block-shaped cutting residue collection apparatus 29 shown in FIG. Further, the number of installed air injection nozzles 19 and the installation location of the apparatus 9 for recovering the granular cutting residue can be changed according to the purpose. Further, the means for driving the brush member 30 of the collection device 29 can be a forward / backward method, a rotation method, a flip-up method, a combination method thereof, or the like in relation to the shape of the collection box 6a.
[0026]
【The invention's effect】
As described above, in the present invention, an elastic shielding plate is attached to the entire circumferential side surface of the collection container connected to the dust collector so as to be airtight between the track surface, and the inside of the collection container is back and forth by an elastic partition plate. Since the preliminary dust chamber and the central dust collection chamber are partitioned, the central dust collection chamber always maintains airtightness even when the elastic shielding plate and the elastic partition plate are subjected to interference by a rail fastening device, etc. Can do. In addition, an air injection nozzle is arranged in the central dust collection chamber, and the granular grinding residue is suspended from the raceway surface in the dust collection chamber, so that the granular grinding residue that cannot be recovered by the rail grinding device. Almost all of them can be collected by suction.
[0027]
Further, in the present invention, a high-temperature cutting residue lump is detected by a temperature sensor, sprayed with water from an injection nozzle and cooled, and then the mastication lump lump is adsorbed by a magnetic member such as an electromagnet. To collect. Therefore, it is possible to fully automate the collection operation, reduce the burden on the worker and escape from a harsh environment, prevent oversight by an artificial method, etc., and reliably collect.
[0028]
Further, according to the present invention, a brush member is disposed between the inner peripheral surface of the dust collection container and the outer surfaces of the left and right rails facing the dust collection container, and the grinding residue falling from the upper side of the dust collection container. Since the lump of material is received and collected by the brush member, it is possible to automatically collect the lump of the cutting residue before it falls to the raceway surface.
[Brief description of the drawings]
FIG. 1 relates to a first embodiment of the present invention, in which FIG. (A) is a side view of a rail grinding wheel equipped with a rail grinding scrap collecting device, and FIG. (B) is a partially enlarged view thereof. It is.
FIG. 2 is a plan view of the rail cutting residue collecting apparatus according to the first embodiment of the present invention.
FIGS. 3A and 3B show an apparatus for recovering granular cutting residue according to the first embodiment of the present invention, FIG. 3A is a side view, FIG. C) is a plan view.
FIGS. 4A and 4B show an apparatus for recovering a block-like cutting residue according to the first embodiment of the present invention, wherein FIG. 4A is a side view and FIG. 4B is a partial bottom view. It is.
FIG. 5 is a longitudinal cross-sectional front view showing a part of an apparatus for recovering a block-like cutting residue according to a second embodiment of the present invention.
FIG. 6 is a schematic front view showing a conventional rail correcting device and a corrected scrap collecting device thereof.
[Explanation of symbols]
3a, 3b ... Rail 4 ... Dust collection containers 5a, 5b ... Grinding wheel 8 ... Rail grinding wheel 9 ... Granular grinding scrap recovery device 10 ... Bulk grinding scrap recovery device 11 ... Rail grinding device 12 ... Recovery Container 13 ... Elastic shielding plate 14 ... Rail through-holes 15, 16 ... Front and rear spare chambers 17 ... Central dust collection chamber 18 ... Elastic partition plate 19 ... Air injection nozzle 20 ... Duct 21 ... Base frame 24 ... Temperature sensor 25 ... Spray nozzle 26 for watering ... Magnetic member 27 ... Recovery box 29 ... Massive cutting scrap recovery device 30 ... Brush member

Claims (5)

The rail grinding wheel is placed on the lower surface of the left and right rails so as to straddle the inside and outside of the left and right rails. An elastic shielding plate, an elastic partition plate that divides the inside of the collection container into front and rear spare chambers and a central dust collection chamber, a plurality of air injection nozzles disposed in the central dust collection chamber, and a collection container A rail cutting waste collecting device comprising a duct that communicates with the dust collector. A base frame arranged between the left and right rails on the lower surface side of the rail grinding wheel and framed in a predetermined shape, and disposed on the lower surface of the front side of the base frame. A temperature sensor that detects the lump of debris, a spray nozzle for watering attached to the lower surface of the base frame near the rear of the base frame corresponding to the inside and outside of the rail, and a rear side of the base frame. A rail shavings recovery device comprising a magnetic member that adsorbs a lump of lumps. The rail-cutting scrap collecting device according to claim 1 is attached to a central portion in the front-rear direction of the base frame according to claim 2. It has a dust collection container of a rail grinding device that is arranged between the left and right rails on the lower surface side of the rail grinding wheel and opens on the lower surface side, and the inner circumferential surface of the dust collection container and the left and right sides facing this A rail member is disposed between the outer surface of the rail of the rail, and a block of the cutting residue falling from the upper side of the dust collecting container is received by the brush member and recovered. Waste collection device. The rail cutting waste collection apparatus according to claim 4, further comprising a drive unit that is capable of swinging the brush member and capable of feeding the received mass of grinding waste to a collection box of a dust collection container.

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