JP2009096382A - Apparatus for automatically applying liquid to rail - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for automatically applying a liquid to rails that is disposed on an inside rail even at a location of a large cant, thereby effectively preventing the occurrence of a creaking noise caused between rails and wheels, and causing no lubricating liquid wastefully flowing down. <P>SOLUTION: The apparatus for applying a liquid to rails includes a storage tank 1 of a lubricating liquid, a pump 2 that supplies a lubricating liquid from the storage tank 1, and a liquid applying unit 3 that receives a lubricating liquid supply from the pump 2 and discharges this onto a rail tread surface. The liquid applying unit 3 comprises an elongated block 4 fixed to the side surface of a rail head, and a discharge block 5 incorporated into the elongated block 4. The discharge block 5 is provided with a nozzle 15 for discharging a lubricating liquid supplied from the storage tank 1 by the operation of the pump 2 and then fed through a pipe 11 onto the rail tread surface. The nozzle 15 is disposed inclined upwardly and inclined inwardly in the rail direction. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention is a device for applying a liquid to a rail, and more specifically, a location where a contact pressure between a wheel and a rail is increased and a noise is generated like a curve point (in particular, an inner rail side where a side slip of a wheel tread occurs) The present invention relates to an automatic liquid coating device for a rail installed to reduce the noise and prevent the rail and wheels from being worn.

  As part of the prevention of combined derailment of railway vehicles and operational safety measures, correction for rail shape restoration and change of wheel flange angle from 60 degrees to 70 degrees have been implemented. This change is made with the intention of increasing the frictional resistance between the rail and the wheel to increase the margin for rising derailment. However, along with this change, the wear of the flanges and rails of the wheels (especially on the outer gauge side) is accelerated faster than before at the rail curve points, and squeak noise is increased particularly on the inner gauge side.

  In other words, at the curve point, when considering the wheel of one axle, the rolling distance of the outer gauge side wheel is longer than the rolling distance of the inner gauge side wheel. For this reason, the inner rail side wheel idles (slides) on the inner rail and generates a loud squeak noise.

  In the old days, as a countermeasure against the squeak noise, grease or water was manually applied to the rail tread surface. However, since the work requires labor and labor costs, an oiling device having an oiling hole opened toward the wheel flange portion of the vehicle traveling on the rail is provided on the rail, and the oiling device is connected via an electric pump. In addition, the electric pump is electrically connected to the vehicle entry detection device via a discharge amount control device equipped with a timer mechanism, and the signal from the vehicle entry detection device is used to connect the oil pump to the oil supply hole. An electric rail oiling device characterized by applying oil to the rail was proposed (Japanese Utility Model Publication No. 53-10641).

  However, in the case of the above-mentioned rail oiling device, since it is electric and has a large number of parts and a complicated mechanism, not only the cost and running cost of the device itself is increased, but also the rail tread surface is often excessively oiled. In addition, there has been a drawback that oil scum adheres to the side surface and takes time to remove it, and a large amount of grease is used, so that the periphery of the apparatus installation portion becomes dirty.

  Therefore, a device described in Japanese Patent No. 3806005 has been proposed as an oiling device for rails without such a defect. It includes an oil tank, an oil pump that receives supply of lubricating oil from the oil tank and supplies oil by a stepping pressure of a wheel, and an oil that receives supply of lubricating oil from the oil pump and oozes it onto the rail It consists of units.

  This oiling device is a device that causes the lubricating oil to ooze out on the rail tread surface relatively slowly in a direction perpendicular to the rail by the treading pressure of the wheel, but has been put into practical use as having some effect.

  However, at the point where the difference in height between the rails on the inner rail side and the outer rail side is large, the rail tread is inclined downward in the direction of the inside of the curve. Oil drips to the inner gauge side. In this case, although there is not much problem with the outer rail, the lubricating oil is insufficient with the inner rail and it is difficult to achieve its purpose sufficiently.

  Recently, since the conventionally used grease causes environmental pollution, a water-soluble lubricating liquid has been used instead (Japanese Patent Application Laid-Open No. 2003-55683). The wasteful dripping flow of the lubricating liquid in this is a problem in terms of cost.

  Therefore, conventionally, the method of installing the coating liquid device at a location where the cant is smaller than the location where the squeak noise is generated has been taken, but of course, this method requires insufficient lubricating liquid at the critical location. Therefore, it cannot be sufficient as a squeak noise countermeasure.

Japanese Utility Model Publication No. 53-10642 Japanese Patent No. 3806605 JP 2003-55683 A

  The present invention has been made in view of the problems in the conventional method described above, and even at a large cant, it can effectively prevent the occurrence of squeak noise generated between the rail and the wheel by installing it on the inner rail. It is an object of the present invention to provide an automatic liquid coating apparatus for rails that prevents the lubricating liquid from dripping and flowing unnecessarily.

  An automatic liquid coating apparatus for a rail according to claim 1 for solving the above-described problem is a lubricating liquid storage tank, a pump for supplying lubricating liquid from the storage tank, and a lubricating liquid supply from the pump. A coating apparatus for a rail comprising a coating liquid unit that discharges this onto a rail tread, the coating liquid unit being incorporated in a long block fixed to a side surface of a rail head and the long block The discharge block is provided with a nozzle for discharging the lubricating liquid supplied from the storage tank by the action of the pump and sent through the piping toward the tread surface of the rail. The nozzle is arranged to be inclined upward and inclined inward in the rail direction.

  Preferably, the upward inclination angle of the nozzle is about 15 degrees, and the inward inclination angle is about 5 degrees. In addition, a fitting recess for fitting the discharge block is formed in the long block, and after the discharge block is fitted to the fitting recess, the fixing plate is attached to the long block, and the drop is removed. While preventing, the fitting state can be maintained.

  The discharge block is replaceable. In this case, a plurality of types having different upward inclination angles and / or inward inclination angles of the nozzles are prepared as the discharge blocks, and can be selectively replaced.

  More preferably, the upper surface of the long block and the upper surface of the discharge block are flush with each other, and a series of drainage grooves are formed from the upper surface of the discharge block to the upper surface of the long block.

  The present invention is configured as described above, and since the nozzle is arranged so as to be inclined upward and inward, the lubricant discharged from the nozzle adheres to the rail tread so as to cross the rail tread with a small oblique angle. The section will be quite long, and will stay on the rail tread for a considerably longer time than when discharging at a right angle to the rail or in a direction close to it, so that the effect of preventing the occurrence of squeak noise by the lubricant is effectively performed. become.

  In addition, according to the third to fifth aspects of the present invention, it is easy to attach and detach the discharge block, and there is an effect that it can be replaced with an optimal discharge block according to the situation.

  According to the sixth aspect of the invention, there is an effect that it is avoided that the splash of the lubricating liquid accumulates on the upper surface of the discharge block and adversely affects the operation of the nozzle.

  The best mode for carrying out the present invention will be described with reference to the accompanying drawings. As shown in FIG. 1, the coating liquid apparatus according to the present invention includes a storage tank 1 installed in the vicinity of a rail 31 for storing lubricating liquid, a pump 2 for supplying lubricating liquid from the storage tank 1, and a pump 2. The coating liquid unit 3 receives the supply of the lubricating liquid by the action, and flies it toward the tread surface of the rail 31. The pump 2 is an electric pump, and performs a discharge operation based on, for example, a vehicle arrival detection signal from a sensor (not shown).

  The coating liquid unit 3 includes a long block 4 fixed to the side surface of the head of the rail 31 and a discharge block 5 incorporated in the long block 4 (see FIGS. 2 and 4). Usually, there is one discharge block 5 incorporated in one long block 4, but a plurality of discharge blocks 5 are also possible. The long block 4 and the discharge block 5 can be resin-molded. In this case, it is easy to make the shape corresponding to the curvature of the rail 31.

  The discharge block 5 has a shape that fits into a recessed portion 6 for fitting formed near one end of the long block 4 having a length of about 1200 mm, for example, and the fixing plate 7 is attached to the side exposed portion of the discharge block 5 after the fitting. The bolt 8 is screwed into the long block 4 from the fixed plate 7 through the wings 5a at both ends of the discharge block 5 to be fixed thereto. In the case of this fixing method, the discharge block 5 can be easily attached and detached by loosening the bolts 8 and removing the fixing plate 7, so that the replacement work becomes easy.

  A liquid inlet port 13 is formed on the bottom surface of the discharge block 5, and a liquid passage 14 drilled inward therefrom is connected to a nozzle 15 provided on the upper part of the discharge block 5 (see FIG. 6). A pipe 11 extending from the storage tank 1 is connected to the liquid inlet port 13 via the pump 2, the flow rate control valve 10 and a check valve.

  Although the discharge port of the nozzle 15 is exposed on the upper surface of the discharge block 5, the orientation of the nozzle 15 is important in the present invention. That is, it is necessary to incline the nozzle 15 upward and inward. The upward angle and the inward angle of the nozzle 15 are intended to apply the lubricating liquid obliquely and as long as possible to the rail tread surface, which depends on the discharge pressure from the nozzle 15, but for example, It is set to have an upward inclination of about 15 degrees from the horizontal line and to an inward inclination of about 5 degrees in the direction of the rail 31 from the parallel line to the rail 31.

  On the upper surface of the discharge block 5, the nozzle groove 16 that accommodates the tip of the nozzle 15 communicates with the nozzle groove 16 in order to prevent the nozzle 15 from becoming dirty or clogged due to accumulation of liquid droplets due to accumulation of droplets. Accordingly, a drainage groove 17 extending in a direction orthogonal to the nozzle groove 16 is formed. Further, a drainage groove 18 connected to the drainage groove 17 is formed on the upper surface of the fixed plate 7. Thus, since the droplets falling into the nozzle groove 16 flow out through the drainage grooves 17 and 18 at any time, they do not accumulate there.

  The long block 4 is attached to the rail 31 using a plurality of block supports that extend from the lower side of the rail 31 toward the head of the rail 31 and support the long block 4 from below.

  As shown in FIGS. 7 and 8, the block support has a support body 21 surrounding the base 31a of the rail 31 from below, and the tip of the support body 21 has a side edge on one side of the base 31a. It bends small so as to embrace (front end curved portion 23), and its rear end is greatly curved toward the head of the rail 31 from the obliquely lower side (rear end curved portion 22). Preferably, the support tool main body 21 is thickened on the rear end curved portion 22 side.

  A fixing bolt 24 and a pressing bolt 25 are installed at the front end of the rear end bending portion 22 in an orthogonal state without contacting each other. The fixing bolt 24 is screwed into an end portion of the rear end bending portion 22 through a nut 26 fixed thereto, and a fixing block 27 having a shape corresponding to the end portion of the base 31a of the rail 31 is provided at the front end thereof. Is installed. The fixing bolt 24 rotates against the fixing block 27 and presses the fixing block 27 toward the base 31 a of the rail 31.

  A female screw block 28 is installed in the rear end bending portion 22, and a pressing bolt 25 is screwed therein. A receiving member 30 having a corresponding seating surface that abuts from the outer side surface to the bottom surface of the long block 4 is disposed at the tip of the pressing bolt 25, and the pressing bolt 25 rotates while being idle with respect to the receiving member 30. 30 is pressed toward the long block 4.

  In this configuration, when the fixing bolt 24 is rotated, the nut 26 is fixed and does not rotate, and therefore the fixing bolt 24 is screwed relative to the nut 26. As a result, the rear end bending portion 22 is pressed away from the rail 31, and as a result, the front end bending portion 23 firmly holds the edge of the base 31 a of the rail 31, and the main body 21 is firmly attached to the rail 31. Fixed.

  Further, when the pressing bolt 25 is screwed, the long block 4 is pressed and supported by the receiving member 30 obliquely from below, so that it does not tilt counterclockwise in FIG. The rail 31 is in close contact with the side surface of the head without causing a gap.

  The coating liquid apparatus according to the present invention has the above-described configuration, and the coating liquid unit 3 is attached to a position immediately before a portion where a squeak noise is generated in the curved region of the rail 31, and a photoelectric sensor, for example, is positioned in the vicinity of the rail in front of it. Installed. For example, a trochoid pump directly connected to a motor is used as the pump 2, and a solar battery 12 or an AC power source is used as a power source.

  Thus, the sensor senses the arrival of the vehicle, and based on this, the motor is controlled by the controller installed in the control panel 9, and the trochoid pump operates according to the timer setting in units of seconds. Stop feeding immediately after feeding. The liquid feeding amount is adjusted by the flow control valve 10. The adjustment by the flow rate adjusting valve 10 is important in order to balance the liquid supply and secure an appropriate discharge pressure when the liquid is supplied to a plurality of long pipes 11.

  Thus, the lubricating liquid is instantaneously and vigorously blown from the nozzle 15 toward the front tread surface of the rail 31 and adheres to the tread surface so as to cross the rail 31 at an acute angle. At that time, it goes without saying that the discharge pressure and the discharge amount are adjusted so that the lubricant does not pass through the rail 31 and does not fall to the rail 31 and reach the rail 31 sufficiently.

  Although the present invention has been described in some detail with respect to its most preferred embodiments, it is clear that a wide variety of embodiments can be constructed without departing from the spirit and scope of the invention, so that the present invention is It is not limited to that particular embodiment except as limited in scope.

1 is an overall configuration diagram of an apparatus according to the present invention. It is a longitudinal cross-sectional view which shows the installation state of the apparatus which concerns on this invention. It is a front view which shows the installation state of the apparatus which concerns on this invention. It is a principal part perspective view which shows the installation state of the apparatus which concerns on this invention. It is a top view of the discharge block in the apparatus concerning the present invention. It is a longitudinal cross-sectional view of the discharge block in the apparatus which concerns on this invention. It is a longitudinal cross-sectional view which shows the attachment method to the rail of the apparatus which concerns on this invention. It is a longitudinal cross-sectional view which shows the attachment method to the rail of the apparatus which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Storage tank 2 Pump 3 Coating unit 4 Long block 5 Discharge block 6 Fitting recessed part 7 Fixing plate 8 Bolt 9 Control panel 10 Flow control valve 11 Piping 12 Solar battery 13 Inlet port 14 Liquid path 15 Nozzle 16 Nozzle groove 17 Drainage groove 18 Drainage groove 20 Block support tool 21 Support tool body 22 Rear end bending portion 23 Front end bending portion 24 Fixing bolt 25 Pressing bolt 26 Nut 27 Fixing block 28 Female screw block 30 Receiving member 31 Rail 31a Base 32 Wheel

Claims (6)

A rail liquid coating apparatus comprising a lubricating liquid storage tank, a pump for supplying lubricating liquid from the storage tank, and a coating liquid unit that receives the lubricating liquid supplied from the pump and discharges the lubricating liquid onto the rail tread. The coating liquid unit is composed of a long block fixed to a side surface of a rail head and a discharge block incorporated in the long block. The discharge block is moved from the storage tank by the action of the pump. There is provided a nozzle for discharging the lubricating liquid delivered and sent through the pipe toward the tread surface of the rail, and the nozzle is arranged to be inclined upward and inclined inward to the rail. An automatic coating device for rails. The automatic liquid coating apparatus for rails according to claim 1, wherein the upward inclination angle of the nozzle is about 15 degrees and the inward inclination angle is about 5 degrees. The elongated block is formed with a fitting recess for fitting the discharge block, and the discharge block is dropped when the fixing plate is applied after the fitting block is fitted into the fitting recess. The automatic liquid application device to the rail according to claim 1, wherein the fitting state is maintained. 4. The automatic liquid coating apparatus for rails according to claim 1, wherein the discharge block is replaceable. 5. The automatic liquid coating apparatus for rails according to claim 4, wherein a plurality of types having different upward inclination angles and / or inward inclination angles of the nozzles are prepared as the discharge blocks and can be selectively exchanged. The top surface of the long block and the top surface of the discharge block are flush with each other, and a series of drainage grooves are formed from the top surface of the discharge block to the top surface of the long block. Automatic coating equipment for rails as described in 1.

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