JP2017227583A - Track information collection device and rail axial force measurement device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a track information collection device and rail axial force measurement device capable of continuously collecting pieces of information related to a track required for measurement of rail axial force in a short time.SOLUTION: A rail axial force measurement system 6 sends track information to a track information processor 24 from a track information collection device 8, then the track information processor 24 measures rail axial force based on the track information. The track information collection device 8 automatically and continuously measures and collects pieces of track information such as an eigen frequency of a rail 2A while moving. A track state measurement device 11 measures an eigen frequency of the rail 2A based on a sound generated by the rail 2A, when an excitation device 9 excites the rail 2A. The track information processor 24 executes prescribed processing about the track information collected by the track information collection device 8, and analyzes the track information. A rail axial force measurement device 27 measures rail axial force based on an eigen frequency of the rail 2A measured by the track state measurement device 11.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a track information collecting device that collects information about a track, and a rail axial force measuring device that measures the rail axial force of the track.

  Conventionally, a method has been proposed in which a natural frequency is measured by exciting a rail and a rail axial force is estimated from the natural frequency. A conventional rail axial force measuring device (hereinafter referred to as prior art 1) is detachably attached to the top and side surfaces of the rail to vibrate the rail head, and detachable to the rail abdomen. And a rail axial force measuring device connected to the receiver to measure the natural frequency of the rail and measure the rail axial force. 1). In this prior art 1, the ceramic vibrator is vibrated in a resonance mode, the natural frequency of the rail is measured by a rail axial force measuring device, and the rail axial force is estimated from this natural frequency.

  A conventional rail axial force measuring device (hereinafter referred to as Prior Art 2) includes an exciter that vibrates a rail at a predetermined frequency, a receiver that detects a vibration state of the rail, and a vibration state that is output from the receiver. The analysis device which calculates the natural frequency of the rail based on the above data and the calculation device which calculates the rail axial force from this natural frequency are provided (for example, refer to Patent Document 2). In this prior art 2, the natural vibration of the rail calculated by the analyzer based on the correspondence relationship between the rail axial force and the natural frequency analyzed with the rail axial force applied to the analysis model simulating the actual rail. The rail axial force is estimated from the number.

JP 2011-122887

JP 2011-033348

  In the conventional method for estimating the rail axial force, the wear shape, temperature, and sleeper interval of the rail in the range of several tens of meters from the measurement location affect the measurement value. For this reason, in the conventional rail axial force estimation method, it is necessary to continuously measure the wear shape, temperature, and sleeper interval of the rail in the range of several tens of meters. However, in the conventional method of estimating the rail axial force, it is necessary to measure the natural frequency at a plurality of locations while repeating the work of attaching / detaching the ceramic vibrator, vibrator, and receiver to / from the rail. There is a problem that it takes.

  An object of the present invention is to provide a track information collecting device and a rail axial force measuring device capable of continuously collecting information on a track necessary for measuring a rail axial force in a short time.

The present invention solves the above-mentioned problems by the solving means described below.
In addition, although the code | symbol corresponding to embodiment of this invention is attached | subjected and demonstrated, it is not limited to this embodiment.
As shown in FIGS. 1 and 8, the invention of claim 1 is a trajectory information collecting device that collects information on the trajectory (1), and is provided along the trajectory for measuring the rail axial force of the trajectory. Orbital state measuring device (11) for measuring the state of the orbit while moving, and the orbital state measuring device measures the natural frequency of the rail (2A) of the orbital track. Device (8).

  The invention according to claim 2 is the trajectory information collecting device according to claim 1, as shown in FIGS. 2, 3, and 11, a vibration device (9) that vibrates the head side surface (2 e) of the rail. The track state measuring device includes a sound measuring unit (16) for measuring sound generated when the head side surface of the rail is vibrated, and the rail based on the measurement result of the sound measuring unit. And a natural frequency measuring unit (17) for measuring the natural frequency of the orbital information collecting device.

According to a third aspect of the present invention, in the trajectory information collecting device according to the second aspect, as shown in FIGS. 2, 5, 8, and 9, the trajectory state measuring device is a supporting point ( with P _S) the midpoint between (midpoint detector for detecting a P _H) to (15), said vibrating unit, said at an intermediate point between the support points on the basis of the detection result of the intermediate point detector The trajectory information collecting apparatus is characterized in that the head side surface of the rail is vibrated, and the sound measuring unit measures a sound generated from an intermediate point between the support points.

  According to a fourth aspect of the present invention, in the trajectory information collecting device according to the second or third aspect, as shown in FIGS. 2 and 3, the sound measuring unit is configured such that the head side surface of the rail is vibrated. It is a trajectory information collection device characterized by measuring the sound generated sometimes without contact.

  According to a fifth aspect of the present invention, in the trajectory information collection device according to any one of the first to fourth aspects, as shown in FIGS. The track information collecting device includes a wear shape measuring unit (18) for measuring a wear shape of the head portion (2a) of the rail.

  According to a sixth aspect of the present invention, in the trajectory information collecting device according to any one of the first to fifth aspects, as shown in FIGS. The track information collecting apparatus includes a temperature measuring unit (19) that measures a temperature near a support point that supports the rail.

  The invention of claim 7 is a rail axial force measuring device for measuring the rail axial force of the track (1) as shown in FIGS. 2 and 11, and any one of claims 1 to 6. An axial force calculation unit (29) for calculating the rail axial force based on the natural frequency of the rail (2A) measured by the track state measuring device (11) of the track information collecting device (8) described in 1. This is a rail axial force measuring device (27).

  In the rail axial force measuring device according to claim 7, as shown in FIGS. 11 and 12, the correlation between the natural frequency of the rail and the rail axial force is used as correlation information. A correlation information storage unit (26a) for storing, wherein the axial force calculation unit calculates the rail axial force based on the correlation information stored in the correlation information storage unit and the natural frequency of the rail. It is a rail axial force measuring device characterized by calculating.

  The invention of claim 9 is the rail axial force measuring device according to claim 8, further comprising a correlation information correction unit (28A) for correcting the correlation information based on a wear shape of the head of the rail. The axial force calculating unit calculates the rail axial force based on the corrected correlation information corrected by the correlation information correcting unit and the natural frequency of the rail. It is.

  The rail axial force measuring device according to claim 8 includes a correlation information correction unit (28B) that corrects the correlation information based on a temperature near a support point that supports the rail. The rail force calculating unit calculates the rail axial force based on the corrected correlation information corrected by the correlation information correcting unit and the natural frequency of the rail. It is a measuring device.

  According to the present invention, it is possible to continuously collect information on the track necessary for measuring the rail axial force in a short time.

It is a lineblock diagram of a rail axial force measuring system concerning an embodiment of this invention. 1 is a side view schematically showing a trajectory information collection device according to an embodiment of the present invention. It is a mimetic diagram of an oscillating device of an orbit information gathering device concerning an embodiment of this invention. It is a schematic diagram of the movement distance measurement part of the track | orbit state measuring apparatus in the track | orbit information collection apparatus which concerns on embodiment of this invention. It is a schematic diagram of the support point detection part of the orbital state measuring device in the orbit information collecting device according to the embodiment of the present invention. It is a mimetic diagram of a wear shape measurement part of a track condition measuring device in a track information collecting device concerning an embodiment of this invention. It is a schematic diagram of the temperature measurement part of the orbital state measuring device in the orbital information collecting device according to the embodiment of the present invention. 1 is a configuration diagram of a trajectory information collection device according to an embodiment of the present invention. It is a schematic diagram for demonstrating the vibration operation | movement of the vibration apparatus of the track | orbit information collection apparatus which concerns on embodiment of this invention. It is a schematic diagram of the data structure of the orbit information memory | storage part of the orbit information collection apparatus which concerns on embodiment of this invention. 1 is a configuration diagram of a trajectory information processing apparatus according to an embodiment of the present invention. It is a schematic diagram of the data structure of the correlation information storage part of the orbit information processing apparatus according to the embodiment of the present invention. It is a schematic diagram of the finite element model of a track | orbit used when calculating | requiring the correlation of the natural frequency and rail axial force of the track | orbit information processing apparatus which concerns on embodiment of this invention. It is a schematic diagram of the data structure of the axial force information storage part of the orbit information collection apparatus which concerns on embodiment of this invention. It is a flowchart for demonstrating operation | movement of the orbit information collection apparatus which concerns on embodiment of this invention. It is a flowchart for demonstrating operation | movement of the rail axial force measuring apparatus which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
A measurer M shown in FIG. 2 is an operator who runs the trajectory information collection device 8 while walking along the trajectory 1. A track 1 shown in FIGS. 1 to 7 is a passage (track) on which the vehicle travels. The track 1 travels, for example, a train composed of one or a plurality of train cars such as trains, trains, locomotives, passenger cars or freight cars. The track 1 includes rails 2A and 2B, a sleeper 3, a rail fastening device 4, a road bed 5, and the like. The track 1 shown in FIGS. 1 to 7 is a general track structure laid on a railroad track, and is a ballast track mainly composed of a rail 2, a sleeper 3, and a roadbed ballast 5a.

  The rails 2A and 2B shown in FIGS. 3 to 7 are members that support and guide the wheels of the vehicle to run the vehicle. As shown in FIGS. 2 to 7, the rails 2A and 2B include a rail head portion 2a, a rail bottom portion (flange portion) 2b, a rail abdomen portion (web portion) 2c, and the like. The rail head 2a is a part that comes into contact with the wheels of the vehicle. As shown in FIGS. 3 to 7, the rail head portion 2a includes a top surface (head top surface) 2d that directly supports the wheels, and a left and right side surface portion of the rail head portion 2a that is continuous with the top surface 2d. It includes a side surface 2e, a gauge corner surface 2f that is formed between the top surface 2d and the head side surface 2e and comes into contact with a flange surface of a vehicle wheel when passing through a sharp curve. The rail bottom portion 2 b is a portion that is supported and attached to the sleeper 3 by the rail fastening device 4. The rail bottom 2b includes a bottom upper surface 2g that is pressed down by the rail fastening device 4. The rail abdomen 2c is a part that connects the rail head 2a and the rail bottom 2b. The rails 2A and 2B shown in FIG. 3 to FIG. 7 are joined to a predetermined length by welding a plurality of regular rails of 25 m at the base or the site, and one long is 200 m or more. Rail or 50-200m long rail.

  The sleeper 3 shown in FIGS. 2-7 is a support body (support body) which supports rail 2A, 2B. The sleeper 3 accurately maintains the distance (gage) between the left and right rails 2A and 2B, and distributes the train load transmitted from the rails 2A and 2B to the road bed 5, so that the rails 2A and 2B and the road bed 5 It is installed between. The sleepers 3 are horizontal sleepers (parallel sleepers used in general sections) that are laid side by side at right angles to the rails 2A and 2B. The sleeper 3 is, for example, a prestressed concrete sleeper that is prestressed by a steel material used as a tension material. As shown in FIG. 2, the sleepers 3 are arranged at predetermined intervals in the length direction of the rails 2A and 2B, and discretely support the rails 2A and 2B.

  A rail fastening device 4 shown in FIGS. 4 and 5 is a device for fastening the rails 2 </ b> A and 2 </ b> B to the sleeper 3. The rail fastening device 4 is inserted between the rails 2A and 2B and the sleepers 3 to press down the track pads 4a that relieve the impact generated when the vehicle travels, and the bottom upper surfaces 2g of the rails 2A and 2B. Fastening springs 4b for fastening to are provided.

  A road bed 5 shown in FIGS. 3 to 7 is a structure that supports the sleeper 3. The roadbed 5 is a ballast roadbed constituted by a ballast layer in which roadbed ballasts 5a are stacked. The roadbed ballast 5a is a granular material such as gravel or crushed stone spread between the sleeper 3 and the roadbed.

  A rail axial force measurement system 6 shown in FIG. 1 is a system that measures the rail axial force of the track 1. The rail axial force measuring system 6 includes a traveling device 7 shown in FIGS. 2 and 4, a track information collecting device 8 shown in FIGS. 1 and 8, a track information processing device 24 shown in FIGS. Yes. The rail axial force measurement system 6 causes the trajectory information collecting device 8 moving along the trajectory 1 to collect various information related to the trajectory 1, and the trajectory information collecting device 8 causes the trajectory information processing device 24 to perform various information related to the trajectory 1. Information is transmitted, and the track information processing device 24 measures the rail axial force based on various information related to the track 1. Here, the rail axial force is a force in the length direction of the rails 2A and 2B accumulated in the rails 2A and 2B shown in FIGS. The rail axial force acts on the rails 2A and 2B as a compressive force at high temperatures in the summer, causing the track buckling. At the low temperature in winter, it acts on the rails 2A and 2B as a tensile force and promotes the development of transverse cracks. Become. The rail axial force acts to extend and contract the rails 2A and 2B due to a change in rail temperature at both ends (extension and contraction sections) of the rails 2A and 2B, but at an intermediate section (non-moving section) other than both ends of the rails 2A and 2B. Even if the temperature of the rails 2A and 2B changes, the rails 2A and 2B do not act to expand and contract.

  A traveling device 7 shown in FIGS. 2 and 4 is a device that travels on the track 1. The traveling device 7 includes a mechanism that can move on the track 1 like a railway vehicle that travels on the track 1, and travels by the human power of the measurer M without requiring mechanical power. The traveling device 7 causes the track information collecting device 8 to function as a track information collecting vehicle. The traveling device 7 has a structure similar to, for example, a portable work carriage, and is movable along the track 1 by being pushed out by the measurer M as shown in FIG. The traveling device 7 includes a mounting portion 7a shown in FIGS. 2 to 7, a wheel 7b shown in FIGS. 2 and 4, a bearing portion 7c, a manual operation portion 7d shown in FIG.

  2 to 7 is a portion on which the trajectory information collection device 8 is mounted. The mounting portion 7a is a plate-like member that is arranged in parallel to the raceway surface. The wheel 7b shown in FIGS. 2 and 4 is a member that makes rotational contact with the left and right rails 2A and 2B. As shown in FIG. 4, the wheel 7b has a tread surface that comes into contact with the top surface 2d of the rail head 2a and receives frictional resistance, and an outer peripheral portion of the wheel 7b in order to prevent derailment. And a flange surface formed continuously. The bearing portion 7c shown in FIGS. 2 and 4 is a portion that rotatably supports the axle of the wheel 7b. The bearing portion 7c is fixed to the mounting portion 7a while supporting the axle of the wheel 7b. The manual operation unit 7d shown in FIG. 2 is a part where the measurer M manually pushes the trajectory information collection device 8. The manual operation unit 7d is a handle held by the measurer M, and is fixed to the end of the mounting unit 7a on the rear side in the traveling direction of the trajectory information collection device 8.

  The trajectory information collection device 8 shown in FIGS. 1 and 8 is a device that collects information about the trajectory 1. The track information collecting device 8 is a continuous measuring device for rail axial force that continuously acquires various information related to the track 1 necessary for measuring the rail axial force while traveling on the track 1. For example, as shown in FIG. 2, the track information collecting device 8 continuously moves track information such as the interval of the sleepers 3, the wear shape of the rail 2A, the temperature of the rail 2A, and the natural frequency of the rail 2A. Automatically measure and collect. The track information collection device 8 travels along the track 1 like an inspection vehicle that inspects the state of the track 1. For example, the trajectory information collection device 8 collects information on the trajectory 1 every time it travels a certain distance of about 1 mm while moving at a speed of about 0.5 to 1.0 m / s. The trajectory information collection device 8 includes a vibration device 9 shown in FIGS. 2 and 3, a vibration condition setting device 10 shown in FIGS. 1 and 8, a track state measurement device 11, a storage device 20, and a transmission / reception device 21. And a display device 22, a control device 23, and the like.

The vibration device 9 shown in FIGS. 2 and 3 is a device that vibrates the head side surface 2e of the rail 2A. As shown in FIGS. 2, 3, and 9, the vibration device 9 vibrates one rail 2A of the pair of left and right rails 2A, 2B. Vibrator 9, based on the detection result of the intermediate point detection unit 15 of the track measuring apparatus 11 shown in FIG. 8, the head of the rail 2A the intermediate point P _H between the support point P _S as shown in FIG. 9 The side surface 2e is vibrated. Vibrator 9, among the intermediate point P _H between the support point P _S to middle point detecting unit 15 detects each vibration point P ₁ is set by the vibration condition setting device 10, ..., rails P _N The head side surface 2e of 2A is vibrated. Here, the supporting point P _S shown in FIG. 9 is a position where the node of vibration of the rails 2A when vibrated rail 2A. The vibration points P ₁ ,..., P _N are positions that become antinodes of vibration of the rail 2 A when the rail 2 A is vibrated, and are intermediate points between the support points P _S that are the center between the rail fastening devices 4. it is a P _H. As shown in FIG. 3, the vibration device 9 strikes the head side surface 2e of the rail 2A with an exciter such as an impulse hammer, and applies an excitation force (blow load) to the head side surface 2e. Impulse excitation device. Vibrator 9, at the moment of passing the intermediate point P _H between the support point P _S, the automatic control based on the position of the rail fastening device 4 in which the support point detecting unit 13 specified, the rail head 2a impulse pressure Shake. The vibration device 9 is a pendulum type vibration exciter as shown in FIG. 3, the hammer portion 9a shown in FIG. 2, FIG. 3, FIG. 8 and FIG. 9, and the drive shown in FIG. The unit 9b is provided.

The hammer portion 9a shown in FIGS. 2, 3, 8, and 9 is a portion that collides with the head side surface 2e of the rail 2A. The hammer portion 9a is a metal, synthetic resin, or natural resin member that is swingably supported with a support point as a fulcrum. The driving part 9b shown in FIGS. 2, 3 and 8 is a means for driving the hammer part 9a. The drive unit 9b unlocks the hammer unit 9a at the standby position indicated by a two-dot chain line in FIGS. 2 and 9 and collides with the head side surface 2e of the rail 2A, and returns the hammer unit 9a after the collision to the standby position. The hammer portion 9a is fixed at the standby position. When the hammer portion 9a reaches the respective excitation points P ₁ ,..., P _N shown in FIG. 9, the drive portion 9b drives the hammer portion 9a with the hammer portion 9a unlocked at the standby position, and the hammer portion 9a collides. Later, the hammer portion 9a is driven in the reverse direction to the standby position.

The vibration condition setting device 10 shown in FIGS. 1 and 8 is a device that sets conditions for vibrating the head side surface 2e of the rail 2A by the vibration device 9. The vibration condition setting device 10 sets the timing at which the head side surface 2e of the rail 2A is vibrated by the vibration device 9. Vibration condition setting device 10, when measuring rail axial force at both ends of the rail 2A is a telescoping section of the rail. 2A, intermediate point P _H is the excitation point P ₁ at both ends of the rail 2A, ..., P Set the excitation conditions so that _N is obtained. Vibration condition setting device 10, when the continuously vibrate the intermediate point P _H rail 2A in the predetermined interval, all the intermediate point P _H in this predetermined section, as shown in FIG. 9 is a vibration point P _1, ..., sets the above vibration conditions becomes P _N. Vibration condition setting device 10, when discretely vibrate the intermediate point P _H rail 2A in a given interval, any intermediate point P _H is the excitation point P ₁ in the predetermined interval, ..., P _N Set the excitation conditions so that Vibration condition setting device 10, when oscillating the intermediate point P _H rail 2A in a predetermined section at regular intervals, the midpoint P _H is the excitation point P ₁ at regular intervals in the predetermined interval, ..., P Set the excitation conditions so that _N is obtained. The vibration condition setting device 10 is, for example, an input device or an auxiliary input device that inputs vibration conditions by a manual operation of a measurer. The vibration condition setting device 10 outputs the vibration conditions after setting to the control device 23 as vibration condition information.

The track state measuring device 11 shown in FIGS. 1 and 8 is a device that measures the state of the track 1 while moving along the track 1 in order to measure the rail axial force of the track 1. The track state measuring device 11 continuously measures the state of the track 1 with a predetermined interval. Orbital state measuring device 11, for example, to measure the moving distance of the vibrator 9, and detect the supporting point P _S rails 2A, or to measure the distance between the support point P _S of the rail 2A, the support point and detect the intermediate point P _H between P _S, or by measuring the sound generated from the rails 2A, or to measure the natural frequency of the rails 2A, or to measure the wear configuration of the rail head 2a of the rail 2A, the temperature in the vicinity of the supporting point P _S for supporting the rails 2A to or measured. The trajectory state measuring device 11 includes a moving distance measuring unit 12 shown in FIGS. 2, 4, and 8, a support point detecting unit 13 shown in FIGS. 2, 5, and 8, and a distance measuring unit 14 shown in FIG. The midpoint detection unit 15, the sound measurement unit 16 shown in FIGS. 3 and 8, the natural frequency measurement unit 17 shown in FIG. 8, the wear shape measurement unit 18 shown in FIGS. The temperature measuring unit 19 shown in FIGS. 2, 7 and 8 is provided.

  The moving distance measuring unit 12 shown in FIGS. 2, 4 and 8 is means for measuring the moving distance of the vibration exciter 9. The moving distance measuring section 12 generates a predetermined number of pulse signals (distance pulse signals) for each rotation of the wheel 7b shown in FIG. 2, and outputs the signals as rotation speed detection information (rotation speed detection signals). A calculation unit for calculating the movement distance (travel distance) of the vibration exciter 9 based on the signal is provided. The moving distance measuring unit 12 calculates the moving distance of the vibration device 9 from the starting point (measurement start point) based on the rotation speed detection signal output according to the rotation speed of the wheel 7b, and the trajectory information collecting device 8 The movement distance is output to the control device 23 as movement distance information.

2, the support point detecting unit 13 shown in FIG. 5 and FIG. 8 is a means for detecting the supporting point P _S for supporting the rail 2A. Supporting point detecting unit 13 detects the fastening position the rail 2A is fastened to the sleepers 3 as a supporting point P _S. The support point detection unit 13 is a support point detection displacement meter that detects the rail fastening device 4. As shown in FIGS. 2 and 5, the support point detection unit 13 is irradiated by the irradiation unit that emits laser light toward the track 1, the light receiving unit that receives the reflected laser light reflected from the track 1, and the irradiation unit. And a distance calculation unit that calculates the distance to the reflection position of the laser beam based on the phase difference between the laser beam to be reflected and the reflected laser beam received by the light receiving unit. As shown in FIG. 2, the support point detection unit 13 detects the two adjacent support points P _S and then causes the vibration device 9 to vibrate the intermediate point P _H between the two support points P _S. The trajectory information collection device 8 is disposed in front of the vibration device 9 in the traveling direction. The support point detection unit 13 detects the rail fastening device 4 using a point where the distance to the sleeper 3 or the roadbed ballast 5a is different from the distance to the rail fastening device 4. Supporting point detecting unit 13 outputs the supporting point detection information (supporting point detection signal) to the controller 23 each time detects the supporting point P _S.

Interval measuring unit 14 shown in FIG. 8 is a means for measuring the distance between the support point P _S for supporting the rail 2A. Interval measuring unit 14, based on the measurement result of the movement distance measuring unit 12 and the detection result of the support point detecting section 13 and measures the distance between the support point P _S for supporting the rail 2A. Interval measuring unit 14, as shown in FIG. 2, from the support point detecting unit 13 detects the support point P _S to the supporting point detecting unit 13 detects the next support point P _S, the moving distance measurement part 12 calculates the movement distance to be measured as the interval between support points P _S. As shown in FIGS. 2 and 5, the distance measuring unit 14 is configured so that the moving distance of the vibration device 9 measured by the moving distance measuring unit 12 when the support point detecting unit 13 irradiates the rail fastening device 4 with laser light. The position of the rail fastening device 4 is specified based on the displacement waveform of the support point detection signal output from the support point detection unit 13 with respect to and the interval between the support points P _S corresponding to the interval between the sleepers 3 is measured. The interval measuring unit 14 outputs the interval between the support points after the measurement to the control device 23 as interval information.

Middle point detecting unit 15 shown in FIG. 8 is a means for detecting the intermediate point P _H between the support point P _S for supporting the rail 2A. The intermediate point detection unit 15 is based on the measurement result of the movement distance measurement unit 12, the detection result of the support point detection unit 13, and the measurement result of the interval measurement unit 14, and between the support points P _S that support the rail 2A. The midpoint P _H is measured. For example, the intermediate point detection unit 15 detects the support point P when the vibration device 9 reaches the half of the distance between the support points P _S after the vibration device 9 passes the support point P _S. It is detected that the vibration device 9 is located at an intermediate point P _H between _S. Middle point detecting unit 15 based on the moving distance information moving distance measuring unit 12 is output when detecting each intermediate point P _H, and outputs the distance to each intermediate point P _H as the midpoint detection information from the origin . Midpoint detector 15, vibrating device 9 when it detects that it has reached the intermediate point P _H between the support point P _S outputs a midpoint detection information to the control device 23.

The sound measuring unit 16 shown in FIGS. 3 and 8 is a means for measuring the sound generated when the head side surface 2e of the rail 2A is vibrated. The sound measurement unit 16 is an acoustoelectric conversion unit that converts acoustic energy into electric energy, and is a sound collecting device such as a microphone that outputs an electric signal corresponding to sound pressure. As shown in FIG. 3, the sound measurement unit 16 is disposed to face the head side surface 2 e of the rail 2 </ b> A with a predetermined gap. The sound measuring section 16, as shown in FIG. 9, the sound generated from the midpoint P _H between the support point P _S measured, when the head side 2e of the rail 2A as shown in FIG. 3 is vibrated Measure the sound generated in the non-contact. The sound measuring unit 16 outputs the sound generated from the head side surface 2e of the rail 2A to the control device 23 as sound information.

The natural frequency measurement unit 17 illustrated in FIG. 8 is a unit that measures the natural frequency of the rail 2 </ b> A based on the measurement result of the sound measurement unit 16. The natural frequency measurement unit 17 calculates the natural frequency (resonance frequency) of the sound measurement signal output from the sound measurement unit 16, and specifies the natural frequency of the vibration of the rail 2A when the rail 2A is vibrated. . Natural frequency measurement unit 17, the supporting point P _S rail 2A is supported is the section of the horizontal and / or vertical rails 2A the intermediate point P _H between the support point P _S is belly pinned -Measure the natural frequency of the vibration mode of the pinned mode. For example, the natural frequency measurement unit 17 performs a fast Fourier transformation (hereinafter referred to as FFT) process on the sound measurement signal output from the sound measurement unit 16 and calculates the resonance frequency of the sound measurement signal. For example, the natural frequency measurement unit 17 performs frequency analysis on an acceleration response when the head side surface 2e of the rail 2A is vibrated by an FET analyzer, and calculates the natural frequency of the rail 2A. The natural frequency measurement unit 17 specifies the frequency corresponding to the peak of the sound measurement signal output from the sound measurement unit 16 as the natural frequency of the rail 2A. The natural frequency measuring unit 17 outputs the natural frequency after measurement to the control device 23 as natural frequency information.

The wear shape measuring unit 18 shown in FIGS. 2, 6 and 8 is means for measuring the wear shape of the rail head portion 2a. The wear shape measuring unit 18 is a rail wear measurement displacement meter that measures the wear shape of the rail head 2a. As shown in FIGS. 2 and 6, the wear shape measuring unit 18 includes an irradiation unit that irradiates laser light toward the rail head portion 2a and a light receiving unit that receives reflected laser light reflected from the surface of the rail head portion 2a. A distance calculation unit that calculates the distance to the reflection position of the laser beam based on the phase difference between the laser beam emitted by the irradiation unit and the reflected laser beam received by the light receiving unit, and a calculation result of the distance calculation unit And a cross-sectional shape calculation unit for calculating the cross-sectional shape of the rail head 2a. The wear shape measuring unit 18 is arranged in a band shape with a predetermined distance from these surfaces so as to surround the top surface 2d, the head side surface 2e, and the gauge corner surface 2f of the rail head 2a shown in FIG. . Wear shape measuring section 18, as shown in FIG. 2, the wear shape of the rail head 2a in the vicinity of the intermediate point P _H for vibrating device 9 is vibrated as measurable, close to this vibrating unit 9 It arrange | positions and the wear shape of the rail head part 2a is measured non-contactingly. The wear shape measuring unit 18 outputs the cross-sectional shape of the rail head 2a after measurement to the control device 23 as wear shape information.

2, the temperature measuring unit 19 shown in FIGS. 7 and 8 are means for measuring the temperature near the support point P _S for supporting the rail 2A. Temperature measurement unit 19, for example, as shown in FIG. 7, for measuring the temperature of the bottom upper surface 2g of the rail bottom portion 2b near the support point P _S. The temperature measuring unit 19 is a radiation thermometer that measures radiant infrared radiation radiated from the bottom upper surface 2g of the rail 2A. Temperature measurement unit 19, a photodetection unit for receiving the infrared radiant energy emitted from the vicinity of the supporting point P _S of the rail 2A, based on the electric signal output from the light receiving portion surface near the support point P _S of the rail 2A It has a surface temperature calculator that calculates the temperature. The temperature measurement unit 19 is arranged at a predetermined interval from the rail 2A, and measures the temperature of the rail 2A in a non-contact manner. Temperature measurement unit 19, as shown in FIG. 2, the temperature of the bottom upper surface 2g of the rail bottom portion 2b of the vicinity of the intermediate point P _H for vibrating device 9 is vibrated as measurable, close to this vibrating unit 9 Is arranged. Temperature measurement unit 19 outputs to the controller 23 the temperature in the vicinity of the supporting point P _S rails 2A after measurement as the temperature information.

  The storage device 20 shown in FIGS. 1 and 8 is a device that stores various types of information. The storage device 20 is, for example, a memory or a hard disk that stores the setting result of the vibration condition setting device 10 and the measurement result of the orbital state measurement device 11. As shown in FIG. 8, the storage device 20 includes a trajectory information storage unit 20a, an excitation condition information storage unit 20b, a trajectory information collection program storage unit 20c, and the like.

The trajectory information storage unit 20a shown in FIG. 8 is a means for storing various information related to the trajectory 1. The trajectory information storage unit 20a stores the measurement result of the trajectory state measurement device 11. Orbit information storage unit 20a is, for example, as shown in FIG. 10, vibration point P _1, ..., natural frequency information D ₁₁ for each P _N, ..., and D _1N, vibration point P _1, ..., P wear shape information D ₂₁ for each _N, ..., and D _2N, vibration point P _1, ..., temperature information D ₃₁ for each P _N, ..., D _3N and each vibration point P ₁ from the starting point, ..., P Movement distance information D ₄₁ ,..., D _4N corresponding to the movement distance up to _N is stored as trajectory information.

  The vibration condition information storage unit 20b shown in FIG. 8 is means for storing the vibration condition information set by the vibration condition setting device 10. The vibration condition information storage unit 20b stores vibration condition information output by the vibration condition setting device 10. The trajectory information collection program storage unit 20c is a means for storing a trajectory information collection program that collects various information related to the trajectory 1. The trajectory information collection program storage unit 20c stores a trajectory information collection program read from an information recording medium, or a trajectory information collection program fetched through an electric communication line.

  The transmission / reception device 21 shown in FIGS. 1 and 8 is means for transmitting the trajectory information stored in the trajectory information storage unit 20a. For example, the transmission / reception device 21 receives a command from the transmission / reception device 25 on the trajectory information processing device 24 side, and transmits the trajectory information stored in the trajectory information storage unit 20a to the transmission / reception device 25 on the trajectory information processing device 24 side. . The transmission / reception device 21 is connected to the transmission / reception device 25 on the trajectory information processing device 24 side so that they can communicate with each other by wire or wirelessly.

  The display device 22 shown in FIGS. 1 and 8 is a device that displays various information about the track 1. The display device 22 displays, for example, the vibration condition information set by the vibration condition setting device 10, the track information output by the track state measurement device 11, and the rail 2 </ b> A output by the sound measurement unit 16. The waveform of the vibration transmission amount when the vibration is applied is displayed, the natural frequency measured by the natural frequency measuring unit 17 is displayed, or the trajectory information stored in the trajectory information storage unit 20a is displayed.

  The control device 23 shown in FIGS. 1 and 8 is a central processing unit (CPU) that controls various operations related to the trajectory information collection device 8. For example, the control device 23 outputs the vibration condition information output by the vibration condition setting device 10 to the vibration condition information storage unit 20b, or the track information output by the track state measurement device 11 in the track information storage unit 20a. Output, command the storage of trajectory information to the trajectory information storage unit 20a, command the storage of vibration condition information to the vibration condition information storage unit 20b, and the vibration stored in the vibration condition information storage unit 20b Based on the condition information and the intermediate point detection information output from the intermediate point detection unit 15, the drive unit 9b of the vibration device 9 is instructed to perform an excitation operation, or the trajectory information collection program is read from the trajectory information collection program storage unit 20c. A predetermined trajectory information collection process is executed according to the trajectory information collection program, or trajectory information is read from the storage device 20 and output to the transmission / reception device 21 and the display device 22, or the transmission / reception device Or instructs the transmission of the orbit information to 1, etc. or command the display of the track information on the display device 22. The control device 23 is connected so that the vibration device 9, the vibration condition setting device 10, the trajectory state measurement device 11, the storage device 20, the transmission / reception device 21, the display device 22, and the like can communicate with each other.

  The trajectory information processing device 24 shown in FIGS. 1 and 11 is a device that processes information related to the trajectory 1. The trajectory information processing device 24 performs a predetermined process on the trajectory information collected by the trajectory information collection device 8 and analyzes the trajectory information. The trajectory information processing device 24 is installed on the ground side, unlike the trajectory information collection device 8 that collects trajectory information on-site while moving on the trajectory 1, for example, and the trajectory information collected by the trajectory information collection device 8 Analyze by post-processing. As shown in FIGS. 1 and 11, the trajectory information processing device 24 includes a transmission / reception device 25, a storage device 26, a rail axial force measurement device 27, and the like.

  The transmission / reception device 25 shown in FIGS. 1 and 11 is means for receiving the trajectory information stored in the trajectory information storage unit 20a. The transmission / reception device 25 receives, for example, the trajectory information stored in the trajectory information storage unit 20a on the trajectory information collection device 8 side from the transmission / reception device 21 on the trajectory information collection device 8 side.

  The storage device 26 is a device that stores various information. The storage device 26, for example, the track information transmitted from the track information collection device 8 side, the measurement result of the rail axial force measuring device 27, the correlation information indicating the relationship between the natural frequency and the rail axial force, and the correlation information correction A memory or a hard disk for storing correlation information after correction by the units 28A and 28B. As shown in FIG. 11, the storage device 26 includes a correlation information storage unit 26a, a trajectory information storage unit 26b, an axial force information storage unit 26c, a rail axial force measurement program storage unit 26d, and the like.

  The correlation information storage unit 26a shown in FIG. 11 is means for storing the correlation between the natural frequency of the rail 2A and the rail axial force as correlation information. When the correlation information is corrected by the correlation information correction units 28A and 28B, the correlation information storage unit 26a also stores the corrected correlation information. The correlation information storage unit 26a stores, for example, the correspondence between the natural frequency of the rail 2A and the rail axial force as shown in FIG. Here, the vertical axis shown in FIG. 12 is the rail axial force (kN), and the horizontal axis is the natural frequency (Hz). The rail axial force is positive in tension and negative in compression. The correlation information storage unit 26a stores a correlation between the natural frequency calculated by the finite element model of the track 1 as shown in FIG. 13 and the rail axial force.

The analysis model shown in FIG. 13 has a structure for one fastening of the finite element model of the track 1. This analysis model is a trajectory model for 200 connections (extension: 120 m) so that the influence of reflected waves generated at the model boundary is sufficiently small. A rail 2A shown in FIG. 13 is an analysis rail to be subjected to vibration analysis modeled by solid elements. Rail 2B is the opposite rail modeled with beam elements. Each of the rails 2A and 2B was modeled with a cross-sectional shape corresponding to a 60 kg rail. Sleeper 3 was modeled with a cross-sectional shape equivalent to No. 3 PC sleeper. The rail fastening device 4 is modeled by a spring element that couples the rails 2A, 2B and the sleeper 3. The road bed 5 is a ballast road bed and is modeled by a spring element disposed under the sleeper 3. Here, k _f shown in FIG. 13 is a spring coefficient of the rail fastening device 4. η _f is a damping coefficient of the rail fastening device 4. k _e is a spring coefficient between the end of the sleeper 3 and the road bed 5. η _e is an attenuation coefficient between the end of the sleeper 3 and the road bed 5. k _c is a spring coefficient between the center portion of the sleeper 3 and the road bed 5. η _c is an attenuation coefficient between the center portion of the sleeper 3 and the road bed 5. For example, as shown in FIG. 12, the correlation information storage unit 26a stores, as correlation information, the correlation between the natural frequency and the rail axial force obtained by modeling the actual trajectory 1 as a finite element model.

  The trajectory information storage unit 26b illustrated in FIG. 11 is a unit that stores various information regarding the trajectory 1. The trajectory information storage unit 26b has the same structure as the trajectory information storage unit 20a on the trajectory information collection device 8 side, and stores various information related to the trajectory 1 stored in the trajectory information storage unit 20a as trajectory information.

The axial force information storage unit 26 c is a unit that stores information related to the rail axial force of the track 1. The axial force information storage unit 26 c stores the calculation result of the axial force calculation unit 29. Axial force information storage unit 26c is, for example, as shown in FIG. 14, vibration point P _1, ..., axial force information D ₅₁ for each P _N, ..., and D _5N, each excitation point P ₁ from the origin, ..., movement distance information D ₄₁ , ..., D _4N corresponding to the movement distance to P _N is stored as axial force information.

  The rail axial force measuring device 27 shown in FIGS. 1 and 11 is a device that measures the rail axial force of the track 1. The rail axial force measuring device 27 measures the rail axial force based on the natural frequency of the rail 2 </ b> A measured by the track state measuring device 11 of the track information collecting device 8. As shown in FIG. 11, the rail axial force measuring device 27 includes correlation information correcting units 28A and 28B, an axial force calculating unit 29, a control unit 30, and the like.

  The correlation information correction unit 28A shown in FIG. 11 is means for correcting the correlation information based on the wear shape of the rail head 2a of the rail 2A. The correlation information correction unit 28A corrects the shape of the solid element of the rail 2A, which is the analysis rail of the finite element model of the actual trajectory 1 as shown in FIG. The correlation between the natural frequency and the rail axial force stored in the relationship information storage unit 26a is corrected. For example, when the track 1 is a straight line and a curved track and the top surface 2d of the rail 2A has a worn shape, the correlation information correction unit 28A uses the worn shape to determine the actual track 1. A correlation between the natural frequency and the rail axial force obtained by finite element modeling is generated. For example, when the track 1 is a curved outer track and the gauge corner surface 2f of the rail 2A has a worn shape, the correlation information correction unit 28A sets the actual track 1 with this worn shape. A correlation between the natural frequency obtained by finite element modeling and the rail axial force is generated. The correlation information correction unit 28A outputs the corrected correlation information to the control unit 30.

Correlation information correction unit 28B shown in FIG. 11 is a means for correcting the correlation information based on the temperature in the vicinity of the supporting point P _S for supporting the rail 2A. The correlation information correction unit 28B corrects the spring coefficient k _f of the rail fastening device 4 of the finite element model of the actual track 1 as shown in FIG. 13 according to the temperature of the support point P _S , and the correlation information storage unit The correlation between the natural frequency stored in 26a and the rail axial force is corrected. Correlation information correction unit 28B, for example, when the spring constant k _f rails 2A and sleepers average temperature average as the temperature decreases rail fastening device 4 in 3 is increased, the spring coefficient k _f of the rail fastening device 4 A correlation between the natural frequency obtained by modeling the actual track 1 by a finite element model and the rail axial force is generated. The correlation information correction unit 28B outputs the corrected correlation information to the control unit 30.

  An axial force calculation unit 29 shown in FIG. 11 is a means for calculating the rail axial force of the track 1. The axial force calculator 29 calculates the rail axial force of the rail 2A based on the natural frequency of the rail 2A measured by the track state measuring device 11 of the track information collecting device 8 shown in FIG. The axial force calculation unit 29 calculates the rail axial force based on the correlation information stored in the correlation information storage unit 26a shown in FIG. 11 and the natural frequency of the rail 2A. The axial force calculation unit 29 collates the correlation information shown in FIG. 12 with the natural frequency of the rail 2A, and estimates the rail axial force F corresponding to the natural frequency f of the rail 2A. When the correlation information correction units 28A and 28B correct the correlation information, the axial force calculation unit 29 corrects the correlation information corrected by the correlation information correction units 28A and 28B and the natural vibration of the rail 2A. The rail axial force is calculated based on the number. The axial force calculator 29 collates the corrected correlation information with the natural frequency of the rail 2A, and estimates the rail axial force corresponding to the natural frequency of the rail 2A. The axial force calculation unit 29 outputs the calculated rail axial force to the control unit 30 as axial force information.

  The control unit 30 illustrated in FIG. 11 is a central processing unit (CPU) that controls various operations related to the rail axial force measuring device 27. For example, the control unit 30 instructs the transmission / reception device 25 to transmit the trajectory information from the transmission / reception device 21 on the trajectory information collection device 8 side, or outputs the trajectory information output by the transmission / reception device 25 to the trajectory information storage unit 26b. The trajectory information is instructed to the trajectory information storage unit 26b, the correlation information is read from the correlation information storage unit 26a and output to the axial force calculation unit 29, or the correlation information is received from the correlation information storage unit 26a. Read out and output to the correlation information correction units 28A and 28B, read out the trajectory information from the trajectory information storage unit 26b and output it to the axial force calculation unit 29, or read out the rail axial force measurement program storage unit 26d from the rail axial force measurement program Is read out and a predetermined rail axial force measurement process is executed according to the rail axial force measurement program, or correlation information is stored in the correlation information storage unit 26a. Correlation after correction that is read out and output to the correlation information correction units 28A and 28B, the correlation information correction units 28A and 28B are instructed to correct the correlation information, and the correlation information correction units 28A and 28B output Information is output to the correlation information storage unit 26a, the corrected correlation information is stored in the correlation information storage unit 26a, the axial force calculation unit 29 is instructed to calculate the rail axial force, The display device displays the axial force information output from the force calculation unit 29 to the axial force information storage unit 26c, instructs the axial force information storage unit 26c to store the axial force information, and displays various information related to the trajectory 1. Or command 31. The control unit 30 is connected so that the transmission / reception device 25, the storage device 26, the correlation information correction units 28A and 28B, the axial force calculation unit 29, the display device 31, and the like can communicate with each other.

  The display device 31 is a device that displays various information related to the track 1. For example, the display device 31 displays the correlation information stored in the correlation information storage unit 26a, displays the trajectory information stored in the trajectory information storage unit 26b, and the axial force stored in the axial force information storage unit 26c. Or display information.

Next, the operation of the trajectory information collection device according to the embodiment of the present invention will be described.
Below, it demonstrates centering around operation | movement of the control apparatus 23 shown in FIG.
In step (hereinafter referred to as S) 100 shown in FIG. 15, the control device 23 reads the trajectory information collection program from the trajectory information collection program storage unit 20c. As shown in FIG. 2, when the track information collecting device 8 is transported to the site and the wheels 7 b of the traveling device 7 are installed on the rails 2 </ b> A and 2 </ b> B of the track 1, the track information collecting device 8 can move along the track 1. It becomes a state. When the measurer turns on the power supply of the trajectory information collection device 8 shown in FIG. 8, the control device 23 reads the trajectory information collection program from the trajectory information collection program storage unit 20c, and the control device 23 executes the trajectory control information collection processing. .

In S110, the control device 23 reads the excitation condition information from the excitation condition information storage unit 20b. When the operator operates the vibration condition setting device 10 to set the vibration condition, the vibration condition is stored in the vibration condition information storage unit 20b. For example, when the rails 2A and 2B shown in FIG. 9 are long rails, when it is desired to continuously measure the rail axial force in a section from 30 to 40 m from both ends of the long rail, intermediate point P _H is the excitation point P ₁ of ..., is set as P _N. In this case, the control device 23 recognizes that the vibration condition information is read from the vibration condition information storage unit 20b and the rail axial force is continuously measured within a predetermined section from both ends of the long rail. .

In S120, the control unit 23 determines whether the intermediate point P _H is detected between the supporting point P _S. For example, as shown in FIG. 2, when the rails 2A and 2B are long rails, the trajectory information collection device 8 starts moving on the trajectory 1 from one end of the long rail to the other end. Then, the movement distance measuring unit 12 shown in FIGS. 2 and 4 starts the measurement of the moving distance of the vibrator 9, the support point detecting unit 13 shown in FIG. 2 and FIG. 5 is started to detect the support point P _S To do. Each time the orbit information collecting apparatus 8 passes over the track 1 moves on the supporting point P _S, the support point detecting unit 13 outputs a supporting point detection signal to the distance measuring section 14. Based on the moving distance information output from the moving distance measuring unit 12 to the interval measuring unit 14 after the supporting point detecting unit 13 outputs the supporting point detection signal until the next supporting point detection signal is output. The interval measuring unit 14 measures the interval between the points P _S. If the interval measuring unit 14 outputs the distance information to an intermediate point detection section 15, (half the distance interval between support points P _S) intermediate distance from the support point P _S shown in FIG. 9 to the intermediate point P _H intermediate inspect The output part calculates. The support point detection unit 13 shown in FIG. 8 outputs a support point detection signal to the intermediate point detection unit 15 and then the movement distance measurement unit 12 measures the movement distance that the vibration device 9 moves. The midpoint detection unit 15 calculates based on the travel distance information to be output. When the intermediate point detection unit 15 determines that the moving distance of the vibration device 9 has reached the intermediate distance, the intermediate point detection unit 15 outputs intermediate point detection information to the control device 23. When the control device 23 determines that the intermediate point detection information is input from the intermediate point detector 15, the process proceeds to S130. On the other hand, when the control device 23 determines that the intermediate point detection information is not input from the intermediate point detection unit 15, the control device 23 repeats the determination of S120.

In S130, a vibration point P ₁ by vibrating unit 9, ..., the control unit 23 whether the rail 2A vibrated at P _N is determined. When intermediate point detection information is input from the intermediate point detection unit 15 shown in FIG. 8 to the control device 23, the control device 23 collates the excitation condition information read from the excitation condition information storage unit 20b with the intermediate point detection information. . As a result, it is controlled whether or not the intermediate point P _H detected by the intermediate point detection unit 15 matches the excitation conditions (excitation points P ₁ ,..., P _N ) set by the excitation condition setting device 10. The device 23 determines. When the control device 23 determines that the intermediate point P _H matches the excitation points P ₁ ,..., P _N , the process proceeds to S140. On the other hand, when the control device 23 determines that the intermediate point P _H and the excitation points P ₁ ,..., P _N do not match, the process returns to S120, and the control device 23 repeats the determination after S120.

In S140, the control device 23 instructs the vibration device 9 to perform a vibration operation. As shown in FIG. 9, when the vibration device 9 reaches the vibration points P ₁ ,..., P _N , the vibration device 9 vibrates the rail 2A at the intermediate point P _H between the support points P _S. The control device 23 controls the drive unit 9b of the vibration excitation device 9. As a result, as shown in FIG. 2, FIG. 3 and FIG. 9, the drive portion 9b releases the fixing of the hammer portion 9a of the vibration device 9, and the hammer portion 9a is moved from the standby position shown by the two-dot chain line in FIG. And the hammer portion 9a collides with the head side surface 2e of the rail 2A at the excitation points P ₁ ,..., P _N shown in FIG. As a result, the supporting point P _S rails 2A becomes section intermediate point P _H between the support point P _S becomes a belly, rail 2A vibrates. After the collision, the drive unit 9b drives the hammer unit 9a to the standby position indicated by the two-dot chain line, and the drive unit 9b fixes the hammer unit 9a at the standby position. As shown in FIGS. 2, 3 and 9, when the hammer portion 9a collides with the head side surface 2e of the rail 2A, the sound measuring unit 16 detects sound radiated from the head side surface 2e. When the sound measurement unit 16 shown in FIG. 8 starts measuring sound with a pre-trigger, and the sound measurement unit 16 outputs sound information to the natural frequency measurement unit 17, the natural frequency measurement unit 17 performs every interval between the support points P _S. Measure the natural frequency. The natural frequency measuring unit 17 measures the natural frequency of the rail 2 </ b> A, and the natural frequency measuring unit 17 outputs the natural frequency information to the control device 23.

In S150, the control device 23 instructs the wear shape measuring unit 18 to perform a measurement operation. As shown in FIG. 9, when the vibration device 9 reaches the vibration points P ₁ ,..., P _N , the wear shape measuring unit 18 shown in FIGS. 2 and 6 measures the wear shape of the rail 2A. The controller 23 controls the wear shape measuring unit 18. As a result, the wear shape measuring unit 18 measures the wear shape of the surface of the rail head 2 a, and the wear shape measuring unit 18 outputs the wear shape information to the control device 23.

In S160, the control device 23 instructs the temperature measurement unit 19 to perform a measurement operation. When the vibration device 9 reaches the vibration points P ₁ ,..., P _N , the temperature measurement unit 19 is controlled so that the temperature measurement unit 19 shown in FIGS. 2 and 7 measures the temperature near the support point P _S. The device 23 controls. As a result, the temperature measuring unit 19 is the temperature of the bottom upper surface 2g of the rail bottom portion 2b near the support point P _S measured, the temperature measurement unit 19 outputs the temperature information to the controller 23.

In S170, the control device 23 commands the track information storage unit 20a to record the track information. The control device 23 instructs the trajectory information storage unit 20a to store the natural frequency information, wear shape measurement information, temperature information, and movement distance information. As a result, as shown in FIG. 10, vibration point P _1, ..., natural frequency information D ₁₁ for each P _N, ..., D _1N, wear shape information D _21, ..., D _2N and temperature information D _31, ..., and D _3N, each excitation point P ₁ from the starting point, ..., moving distance information D ₄₁ to P _N, ..., in correspondence with the D _4N, orbit information storage unit 20a of the information as a track information Remember.

In S180, the control device 23 determines whether or not the trajectory information collection process is to be terminated. The control device 23 refers to the excitation condition information read from the excitation condition information storage unit 20b, and the control device 23 determines whether or not the trajectory information collection process is to be terminated. When the control device 23 determines that the collection of trajectory information has been completed at all the excitation points P ₁ ,..., P _N , the control device 23 ends the series of trajectory information collection processing. On the other hand, when the control device 23 determines that the collection of trajectory information has not been completed at all the excitation points P ₁ ,..., P _N , the process returns to S120, and the control device 23 repeats the processing after S120.

Next, the operation of the rail axial force measuring device according to the embodiment of the present invention will be described.
Below, it demonstrates centering around operation | movement of the control part 30 shown in FIG.
In S200 shown in FIG. 16, the control unit 30 reads the rail axial force measurement program from the rail axial force measurement program storage unit 26d. When the measurer turns on the power supply of the trajectory information processing device 24 shown in FIG. 11, the control unit 30 reads the rail axial force measurement program from the rail axial force measurement program storage unit 26d, and the control unit 30 performs the rail axial force measurement process. Run.

  In S210, the control unit 30 commands the transmission / reception device 25 to transmit orbit information. When the transmission / reception device 25 on the trajectory information collection device 8 side in FIG. 1 instructs the transmission / reception device 21 on the trajectory information collection device 8 side to transmit the trajectory information, the control device 23 of the trajectory information collection device 8 shown in FIG. The trajectory information is read from the trajectory information storage unit 20a. As a result, the control device 23 shown in FIG. 1 outputs the trajectory information to the transmission / reception device 21, and the trajectory information is transmitted from the transmission / reception device 21 on the trajectory information collection device 8 side to the transmission / reception device 25 on the trajectory information processing device 24 side. .

  In S220, the control unit 30 determines whether orbit information has been received. When the control unit 30 determines that the trajectory information has been input to the control unit 30 from the transmission / reception device 25 illustrated in FIG. 11, the control unit 30 determines that the trajectory information has not been input from the transmission / reception device 25 to the control unit 30. When this is done, the series of rail axial force measurement processing ends.

  In S230, the control unit 30 instructs the track information storage unit 26b to record the track information. When the control unit 30 outputs the trajectory information received from the trajectory information collection device 8 to the trajectory information storage unit 26b, the trajectory information storage unit 26b stores the trajectory information.

  In S240, the control unit 30 reads the correlation information from the correlation information storage unit 26a. The control unit 30 reads the correlation information from the correlation information storage unit 26a, and outputs the correlation information correction units 28A and 28B and the axial force calculation unit 29.

In S250, the control unit 30 determines whether to correct the correlation information. The control unit 30 refers to the trajectory information to determine whether or not the wear shape information D ₂₁ ,..., D _2N and temperature information D _{31 ,.} Judgment. Wear shape information D _21, ..., D _2N and temperature information D _31, ..., the process proceeds to S260 when the control unit 30 determines that D _3N is included in the orbit information. On the other hand, wear the shape information D _21, ..., D _2N and temperature information D _31, ..., the process proceeds to S270 when the control unit 30 and the D _3N is not included in the orbit information is determined.

In S260, the control unit 30 instructs the correlation information correction units 28A and 28B to correct the correlation information. For example, when correcting the correlation information based on the wear shape information D ₂₁ ,..., D _2N , a finite element obtained by correcting the shape of the solid element of the rail head 2a of the rail 2A shown in FIG. The correlation obtained by the model is generated as corrected correlation information. Further, for example, when correcting the correlation information based on the temperature information D ₃₁ ,..., D _3N , the spring coefficient k _f of the rail fastening device 4 shown in FIG. A correlation is generated as corrected correlation information. When the correlation information correction units 28A and 28B output the corrected correlation information to the control unit 30, the control unit 30 outputs the corrected correlation information to the correlation information storage unit 26a and the axial force calculation unit 29. The correlation information storage unit 26a stores the corrected correlation information.

In S <b> 270, the control unit 30 instructs the axial force calculation unit 29 to calculate the rail axial force. The control unit 30 reads the trajectory information from the trajectory information storage unit 20 a and outputs the trajectory information to the axial force calculation unit 29. As a result, the axial force calculation unit 29 collates the correlation information representing the relationship between the natural frequency and the rail axial force shown in FIG. 12 with the natural frequency information D ₁₁ ,..., D _1N shown in FIG. The axial force calculation unit 29 calculates the rail axial force for each of the excitation points P ₁ ,..., P _N , and the axial force calculation unit 29 outputs the axial force information to the control unit 30.

In S280, the control unit 30 instructs the axial force information storage unit 26c to store auxiliary axial force information. When the axial force information is input from the axial force calculation unit 29 to the control unit 30, the axial force information is output to the axial force information storage unit 26c to the control unit 30. As a result, as shown in FIG. 14, vibration point P _1, ..., rail axial force information D ₅₁ for each P _N, ..., and D _5N, each excitation point P ₁ from the starting point, ..., up to P _N moving distance information D _41, ..., in correspondence with the D _4N, track information storage unit 20a of the information as a track information is stored.

The track information collecting device and the rail axial force calculation device according to the embodiment of the present invention have the following effects.
(1) In this embodiment, in order to measure the rail axial force of the track 1, the track state measuring device 11 measures the state of the track 1 while moving along the track 1, and the rail 2A of the track 1 is measured. Is measured by the orbital state measuring device 11. Normally, when the rail axial force increases, the natural frequency of the rail 2A increases, and when the rail axial force decreases, the natural frequency of the rail 2A decreases. In this embodiment, by measuring the natural frequency of the rail 2A while moving on the track 1, the rail axial force of the track 1 can be continuously measured in a short time.

(2) In this embodiment, the vibration measuring device 9 vibrates the head side surface 2e of the rail 2A, and the sound measuring unit 16 measures the sound generated when the head side surface 2e of the rail 2A is vibrated. Based on the measurement result of the sound measuring unit 16, the natural frequency measuring unit 17 measures the natural frequency of the rail 2A. For this reason, the natural frequency of the rail 2A can be continuously measured while moving along the track 1. Further, by vibrating the head side surface 2e that emits a sound having a relatively high sound pressure when the rail 2A is vibrated, the sound generated when the rail 2A is vibrated can be measured with high accuracy.

(3) In this embodiment, the intermediate point detection unit 15 detects the intermediate point P _H between the support points P _S that support the rail 2A, and based on the detection result of the intermediate point detection unit 15, the intermediate point P _H vibrating device 9 the head side 2e of the rail 2A is vibrated, the sound generated from the intermediate point P _H sound measuring unit 16 measures. Thus, without being affected by sleepers 3 and the track bed ballast 5a, by most easily shake the midpoint P _H between the support point P _S rails 2A for vibrating pressure, high accuracy the natural frequency of the rails 2A Can be measured. Even if the distance between the sleepers 3 is different, the intermediate point P _H between the support points P _S can be accurately vibrated by the vibration device 9.

(4) In this embodiment, the sound measuring unit 16 measures the sound generated when the head side surface 2e of the rail 2A is vibrated without contact. For this reason, the sound radiated from the rail 2A can be easily measured by an inexpensive sound collecting device such as a microphone while moving the track information collecting device 8 along the track 1.

(5) In this embodiment, the wear shape measuring unit 18 measures the wear shape of the rail head portion 2a of the rail 2A. For this reason, the correlation between the natural frequency of the rail 2A required for measuring the rail axial force and the rail axial force can be corrected to an optimum correlation according to the wear shape of the rail head 2a. Can be measured with high accuracy.

(6) In this embodiment, the temperature measuring unit 19 the temperature in the vicinity of the supporting point P _S for supporting the rails 2A measures. For this reason, the correlation between the natural frequency of the rail 2A necessary for measuring the rail axial force and the rail axial force can be corrected to an optimum correlation according to the surface temperature in the vicinity of the support point P _S. Force can be measured with high accuracy.

(7) In this embodiment, the axial force calculating unit 29 calculates the rail axial force based on the natural frequency of the rail 2A of the track 1 measured by the track state measuring device 11 of the track information collecting device 8. For this reason, the rail axial force can be automatically measured continuously in a short time. For example, when the rails 2A and 2B are long rails, the axial force of the long rails can be managed.

(8) In this embodiment, the correlation information storage unit 26a stores the correlation between the natural frequency of the rail 2A and the rail axial force as correlation information, and the natural frequency of the rail 2A measured by the natural frequency measurement unit 17 is stored. Based on the vibration frequency and the correlation information stored in the correlation information storage unit 26a, the axial force calculation unit 29 calculates the rail axial force. For this reason, for example, by making the track 1 into a finite element model, the correlation between the rail 2A, the natural frequency, and the rail axial force can be easily generated. Further, the rail axial force can be easily measured in a short time simply by measuring the natural frequency of the rail 2A and collating the natural frequency with the correlation information.

(9) In this embodiment, the correlation information correction unit 28A corrects the correlation information based on the wear shape of the rail head 2a, and the corrected correlation information corrected by the correlation information correction unit 28A and the rail Based on the 2A natural frequency, the axial force calculator 29 calculates the rail axial force. For this reason, the rail axial force can be measured with high accuracy by correcting the correlation between the natural frequency of the rail 2A and the rail axial force to an optimum correlation according to the wear shape of the rail head 2a. . Further, even when the natural frequency of the rail 2A is shifted due to the influence of the wear of the rail head portion 2a, the rail axial force can be measured with high accuracy.

(10) In this embodiment, the correlation information is corrected correlation information correction section 28B based on the temperature in the vicinity of the supporting point P _S for supporting the rails 2A, the correlation of the corrected correlation information correction unit 28B has been corrected Based on the relationship information and the natural frequency of the rail 2A, the axial force calculator 29 calculates the rail axial force. Therefore, by correcting the optimum correlation according to correlation between the natural frequency and the rail axial force of the rail 2A in the surface temperature of the support point P _S vicinity, to measure the rail axial force with high precision it can. Further, even when the natural frequency is shifted rails 2A under the influence of the temperature change of the support point P _S vicinity, it is possible to measure the rail axial force with high precision.

The present invention is not limited to the embodiment described above, and various modifications or changes can be made as described below, and these are also within the scope of the present invention.
(1) In this embodiment, the case where the trajectory information collecting device 8 is driven by the human power of the measurer M has been described as an example, but the trajectory information collecting device 8 can also be driven by mechanical power. In this embodiment, the case where the track information collecting device 8 that travels on the track 1 and the track information processing device 24 that is fixed on the ground are separated is described as an example. 8 and the track information processing device 24 can be integrated to run on the track 1. Furthermore, in this embodiment, the case where the rail axial force of the rail 2A is measured by vibrating the rail 2A has been described as an example. However, the rail shafts of the rails 2A and 2B are respectively excited by vibrating the rails 2A and 2B. Each force can also be measured.

(2) In this embodiment, the case where the rail fastening device 4 is detected by the support point detection unit 13 and the interval between the rail fastening devices 4 is measured by the interval measurement unit 14 has been described as an example. The sleeper 3 can be detected by the unit 13, and the interval between the sleepers 3 can be measured by the interval measuring unit 14. Further, those in this embodiment, a case of measuring the temperature of the bottom upper surface 2g of the rail bottom portion 2b near the support points P _S by the temperature measuring unit 19 has been described as an example, to limit the measuring points on the bottom upper surface 2g is not. For example, the temperature of the surface of the sleeper 3 near the support point P _S is measured, or the average value of the temperature of the bottom upper surface 2g of the rail bottom 2b near the support point P _S and the temperature of the surface of the sleeper 3 is measured. You can also. Furthermore, in this embodiment, the case where the intermediate point P _H between the support points P _S of the rail 2A is vibrated by the vibration device 9 has been described as an example, but from the intermediate point P _H between the support points P _S. It is also possible to vibrate a slightly separated position by the vibration device 9.

1 track 2A, 2B rail 2a rail head 2b rail bottom 2c rail side 2d head top surface 2e head side surface 2f gauge corner surface 2g bottom top surface 3 sleeper 4 rail fastening device 5 road bed 5a road bed ballast 6 rail axial force measurement system 7 Traveling device 8 Orbit information collecting device 9 Exciting device 10 Exciting condition setting device 11 Orbit state measuring device 12 Moving distance measuring unit 13 Support point detecting unit 14 Distance measuring unit 15 Intermediate point detecting unit 16 Sound measuring unit 17 Natural frequency measurement Unit 18 Wear shape measurement unit 19 Temperature measurement unit 20 Storage device 20a Track information storage unit 20b Excitation condition information storage unit 20c Track information collection program storage unit 21 Transmitter / receiver 22 Display device 23 Controller 24 Track information processing device 25 Transmitter / receiver 26 storage device 26a correlation information storage unit 26b orbit information storage unit 2 c-axis force information storage unit 26d rail axis force measurement program storage unit 27 rail axial force measuring device 28A, 28B correlation information correcting unit 29 axial force arithmetic unit 30 control unit 31 display M measurer P _S support points P _H midpoint P ₁ ,..., P _N excitation point

Claims (10)

A trajectory information collection device for collecting information on trajectories,
In order to measure the rail axial force of the track, a track state measuring device that measures the state of the track while moving along the track,
The track state measuring device measures a natural frequency of a rail of the track;
Orbital information collection device characterized by. In the trajectory information collection device according to claim 1,
A vibration device for vibrating the side surface of the head of the rail;
The orbital state measuring device is
A sound measuring unit for measuring a sound generated when the head side surface of the rail is vibrated;
A natural frequency measuring unit that measures the natural frequency of the rail based on the measurement result of the sound measuring unit;
Orbital information collection device characterized by. In the trajectory information collection device according to claim 2,
The track state measuring device includes an intermediate point detection unit that detects an intermediate point between support points that support the rail,
The vibration device vibrates the side surface of the head of the rail at an intermediate point between the support points based on a detection result of the intermediate point detection unit,
The sound measuring unit measures a sound generated from an intermediate point between the support points;
Orbital information collection device characterized by. In the trajectory information collection device according to claim 2 or claim 3,
The sound measuring unit measures the sound generated when the head side surface of the rail is vibrated in a non-contact manner;
Orbital information collection device characterized by. In the trajectory information collection device according to any one of claims 1 to 4,
The track state measuring device includes a wear shape measuring unit for measuring a wear shape of a head of the rail;
Orbital information collection device characterized by. In the trajectory information collection device according to any one of claims 1 to 5,
The track state measuring device includes a temperature measuring unit that measures a temperature near a support point that supports the rail,
Orbital information collection device characterized by. A rail axial force measuring device for measuring the rail axial force of a track,
An axial force calculation unit for calculating the rail axial force based on the natural frequency of the rail measured by the track state measuring device of the track information collecting device according to any one of claims 1 to 6. Preparing,
Rail axial force measuring device characterized by. In the rail axial force measuring device according to claim 7,
A correlation information storage unit that stores a correlation between the natural frequency of the rail and the rail axial force as correlation information;
The axial force calculation unit calculates the rail axial force based on the correlation information stored in the correlation information storage unit and the natural frequency of the rail;
Rail axial force measuring device characterized by. In the rail axial force measuring device according to claim 8,
A correlation information correction unit that corrects the correlation information based on the wear shape of the head of the rail;
The axial force calculation unit calculates the rail axial force based on the correlation information after correction corrected by the correlation information correction unit and the natural frequency of the rail;
Rail axial force measuring device characterized by. In the rail axial force measuring device according to claim 8,
A correlation information correction unit that corrects the correlation information based on a temperature near a support point that supports the rail;
The axial force calculation unit calculates the rail axial force based on the correlation information after correction corrected by the correlation information correction unit and the natural frequency of the rail;
Rail axial force measuring device characterized by.

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