JPH07243845A - Railroad vehicle running wheel inspection device - Google Patents

Abstract

PURPOSE:To exactly grasp a wear state of a flange and contrive the improvement of its endurance and the reduction of hands and labor. CONSTITUTION:A first distance sensor 1a for measuring a distance L1 up to a flange outer face 10a is arranged on the outside of a rail 11, and a second distance sensor 1b for measuring another distance L2 up to the inner face 10b of a wheel is set on the inside of the rail 11 respectively. A means for calculating the thickness (d) of a flange 102 of the wheel 10 by using an expression of d=L0-(L1+L2) from a measurement result L1 of the first distance sensor 1a, another measurement result L2 of the second distance sensor 1b and the other distance L0 between the first distance sensor 1a and the second distance sensor 1b is provided. As the result, since the flange thickness (d) can be measured in a non-contact state, a wear state of the flange 102 can be grasped exactly, endurance of the device can be improved and hands and labor can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railroad vehicle running wheel inspection apparatus, and more particularly, to noncontactly measuring the thickness of a running wheel flange of a rolling stock vehicle to accurately grasp the wear state of the wheel flange. Related to a device that can.

[0002]

2. Description of the Related Art A traveling wheel of a railroad vehicle (hereinafter abbreviated as a wheel) travels on a rail surface while being guided by a flange of an inner portion of the rail vehicle. -Lateral pressure and slippage are generated between the inner surface of the flange and the flange, and the flange gradually wears. The wear of the flange of the wheel further progresses, and if it exceeds a certain limit, it causes a serious accident that the vehicle derails. Therefore, the wear condition of the flange of the wheel must be constantly monitored.

Therefore, conventionally, the amount of wear of the flange of the wheel is measured by a special gauge or caliper when inspecting and repairing the railway vehicle. However, in this case, a lot of manpower and labor were required.

Therefore, as disclosed in Japanese Patent Publication No. 57-37801, the contactor is applied to the wheel flange, the movement of the contactor is transmitted to the differential transformer and converted into an electric signal, which requires manpower and labor. It has been proposed to reduce

[0005]

However, in the above-mentioned conventional contact-type wear inspection device, no matter how smoothly the wheel runs on the rail surface, the measurement is performed when the wheel hits the measuring jig. There is a problem that the jig is vibrated, worn, or displaced, and the measurement accuracy is gradually lowered. Further, since the wheels directly contact the measuring jig, there is a problem in durability of the measuring jig. Further, maintenance is required in terms of the life of the measuring jig, which causes a problem of drastically reducing manpower and labor.

An object of the present invention is to detect a wear condition of a wheel flange accurately, improve the durability of the device, and further reduce labor and labor required for maintenance of the device. To provide.

[0007]

To achieve the above object, the present invention is characterized in that a first distance sensor for measuring a distance to a flange outer surface of a railroad vehicle wheel (a flange outer surface of the wheel) is a rail. Installed outside (outside of the wheel),
A second distance sensor that measures the distance to the inner surface of the wheel (back gauge surface inside the wheel) is installed inside the rail (inside the wheel), and the measurement result of the first distance sensor and the second distance are set. Means for calculating the thickness of the flange of the wheel is provided from the measurement result of the sensor and the distance between the first distance sensor and the second distance sensor.

[0008]

The present invention measures the distance from the first distance sensor to the outer surface of the wheel flange and the distance from the second distance sensor to the inner surface of the wheel by the first distance sensor and the second distance sensor in a non-contact state. Further, the calculation means can measure the thickness of the flange of the wheel from the measurement result of the first distance sensor, the measurement result of the second distance sensor, and the distance between the first distance sensor and the second distance sensor. . That is,
As shown in FIGS. 3 and 6, the first distance sensor and the second distance sensor are installed in advance at a constant distance L0.
By measuring the distance L1 from the distance sensor to the outer surface of the wheel flange and the distance L2 from the second distance sensor to the inner surface of the wheel, the thickness d of the wheel flange can be calculated by the following equation (1). d = L0- (L1 + L2) (1) As described above, according to the present invention, since the thickness of the wheel flange can be measured in the non-contact state, the wheel flange thickness can be measured in the contact state. It is possible to solve various problems of conventional measuring devices. That is, the present invention, in the non-contact state as described above, there is no fear of deterioration of the measurement accuracy due to vibration or wear or deviation of the measurement jig that occurs when the wheel hits the measurement jig like the conventional device. The wear condition of the wheel flange can be accurately grasped from the measured wheel flange thickness. In addition, according to the present invention, there is no possibility that the durability of the measurement jig is deteriorated due to the wheel directly hitting the measurement jig as in the conventional device, and the durability can be improved. Further, the present invention does not require much labor and labor due to maintenance in terms of the life of the measuring jig as in the conventional device, and the labor and labor can be significantly reduced accordingly.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Two examples of embodiments of the railway vehicle traveling wheel inspection device of the present invention will be described below with reference to the accompanying drawings. 1 to 4 show the first embodiment of the railway vehicle traveling wheel inspection device of the present invention.
An example of is shown.

In FIG. 1, reference numeral 100 is a railroad vehicle running on a rail 11. Reference numeral 10 denotes traveling wheels of the railway vehicle 100. As shown in FIG. 3, the wheel 10 has a tread 101 formed so that the outer diameter of the outer peripheral surface from the outer surface side portion to the inner surface side portion is gradually increased, and the wheel 10 is integrally formed on the inner surface side portion. And the flange 102 provided. The outer peripheral surface of the flange 102 is continuous from the tread surface 101 and has a convex curved surface whose thickness gradually decreases from the inner side to the outer side. The outer flange surface 10a of the wheel 10 is referred to as a flange outer surface, and the inner flange surface of the wheel 10 (back gauge surface inside the wheel 10).
10b is referred to as a wheel inner surface. Tread 101 of the wheel 10
Runs on a tread surface (rail surface) 11a on the upper surface of the rail 11, and the flange outer surface 10a of the wheel 10 is rail 1
1 is guided on the inner side surface.

1a and 1b are installed outside and inside the rail 11, and are a non-contact type for measuring the distance (shortest distance from the sensor) to the wheel 10 of the railroad vehicle 100 traveling on the rail 11. And a first distance sensor and a second distance sensor.
As shown in FIGS. 2 and 3, the first distance sensor 1a is installed outside the rail 11 and measures the distance L1 to the flange outer surface 10a of the wheel 10 to obtain the measurement result L1.
Is output. In addition, the second distance sensor 1b
Similarly, as shown in FIG. 2 and FIG.
It is installed inside the vehicle and measures the distance L2 to the wheel inner surface 10b and outputs the measurement result L2. As the distance sensors 1a and 1b, a high-frequency current is passed through an internal coil to generate a high-frequency magnetic field, and when a metal to be measured enters the magnetic field, an eddy current is generated on the metal surface due to an electromagnetic induction action. It is composed of an eddy current type displacement sensor that uses the distance between the sensor and the object based on the magnitude of this eddy current, and a combination of a light emitting element and a light position detecting element using a light emitting diode or a semiconductor laser. An optical displacement sensor or an ultrasonic wave that measures the distance between the sensor and the object by emitting an ultrasonic wave toward the object to be measured and measuring the time until the sound wave returns from the object as a reflected wave. A displacement sensor or the like can be used. Each of the distance sensors 1a and 1b is mounted at a position higher than the tread 11a of the rail 11 so that the light emitted from the distance sensors 1a and 1b is not blocked by the rail 11. Further, the installation height of the first distance sensor 1a and the installation height of the second distance sensor 1b may be the same,
It may also be different.

In FIG. 2, 2a and 2b are first amplifying sections,
It is a second amplification unit. The first amplification unit 2a and the second amplification unit 2b are the first distance sensor 1a and the second distance sensor 1 described above.
b, each of which is connected to the first distance sensor 1a
And the outputs L1 and L2 from the second distance sensor 1b are amplified.

In FIG. 2, 3a and 3b are a first A / D converter and a second A / D converter. The first A / D converter 3a and the second A / D converter 3b are the same as the first amplifier 2a.
And the second amplifying section 2b, and sequentially A / D-converts the amplified outputs L1 and L2 from the first amplifying section 2a and the second amplifying section 2b.

Reference numeral 5 denotes a wheel 1 whose flange thickness is measured by the first distance sensor 1a and the second distance sensor 1b.
0 speed (wheel 1 along the direction A of travel of the railway vehicle 100)
This is a speed detection unit that detects a moving speed of 0). The speed detecting unit 5 is of an eddy current type, an optical type, or an ultrasonic type like the distance sensors 1a and 1b, and as shown in FIGS. 1 and 2, two detecting units 5a and 5b are provided. In front of the first distance sensor 1a and the second distance sensor 1b (rail vehicle 10
It is arranged in front of the traveling direction A of 0). The speed detection unit 5 obtains the speed of the wheel 10 from the passage time of the wheel 10 passing between the two detection units 5a and 5b (between one detection unit 5a and the other detection unit 5b). Is. In addition, the speed detecting unit 5 is provided for the vehicle 1 to be inspected.
This is to obtain the elapsed time when 0 passes between the two detection units 5a and 5b.

In FIG. 2, 4a and 4b are first control units,
It is a second control unit. The first control unit 4a and the second control unit 4b are connected to the first A / D conversion unit 3a and the second A / D conversion unit 3b, and are also connected to the speed detection unit 5, respectively. The first control unit 4a and the second control unit 4b include output data L1 and L2 from the first A / D conversion unit 3a and the second A / D conversion unit 3b, and a wheel 10 from the speed detection unit 5. The speed and the elapsed time are sequentially fetched and stored in the storage unit 6 described later. Further, the first control unit 4a and the second control unit 4b are
Depending on the speed of the wheel 10 obtained by the speed detection unit 5,
The sampling cycle of the output data L1 and L2 from the first A / D converter 3a and the second A / D converter 3b is appropriately changed.

In FIG. 2, reference numeral 6 is a storage unit. The storage unit 6 is connected to the first control unit 4a and the second control unit 4b, respectively, and outputs the output data L1 and L2 from the first A / D conversion unit 3a and the second A / D conversion unit 3b. The first control unit 4a and the second control unit 4b successively store the data, and the speed and elapsed time of the wheel 10 from the speed detection unit 5 are also stored in the first control unit 4a and the second control unit 4b.
The data is sequentially stored under the control of.

In FIG. 2, 7 is a processing unit. The processing unit 7 is connected to the storage unit 6 and stores the data L1 and L2 stored in the storage unit 6 and the first distance sensor 1a and the second distance sensor 1b that are fixedly installed in advance.
From the fixed distance L0 between them, the thickness d of the flange 102 of the wheel 10 is successively calculated by the above equation (1) to obtain the flange shape. In addition, the processing section 7 has a thickness d of the flange 102 obtained as described above.
The data is stored in the storage unit 6 together with the measurement order of the wheels 10. The processing unit 7 also calculates the position of each part of the flange 102 of the wheel 10 from the speed of the wheel 10 and the elapsed time obtained by the speed detection unit 5, and calculates the position of each part of the flange 102 of the wheel 10. The shape of the flange 102 of the wheel 10 is reproduced from the thickness d of the flange 102 of the wheel 10 obtained by the arithmetic expression (1), and the reproduced wheel 1
Output screen display unit 8 which will be described later with the shape of the flange 102 of 0.
Is displayed.

In FIG. 2, 8 and 9 are an output screen display section and an output printing section as output sections. The output screen display unit 8 and the output printing unit 9 are connected to the processing unit 7, and the calculation result of the processing unit 7 is displayed on the screen from the processing unit 7 or the storage unit 6 or printed. It outputs something.

The railway vehicle traveling wheel inspection apparatus according to the first embodiment of the present invention has the above-described structure, and its operation will be described below. First, as shown in FIGS. 1 and 2, a railway vehicle 100 for inspecting the wear state of the flange 102 is run on a rail 11 in the direction of arrow A, and the wheels 10 are moved to the first distance sensor 1a and the second distance sensor 1.
While traveling between b and b, it is passed between the two detection parts 5a and 5b of the speed detection part 5. At this time, the wheel 10 moves in the direction of arrow A while rotating in the direction of arrow B, as shown in FIG. Then, as shown in FIG. 3, the first distance sensor 1a measures the distance L1 to the flange outer surface 10a and outputs the measurement result L1, while the second distance sensor 1b measures the distance L2 to the wheel inner surface 10b. The measurement result L
Outputs 2. At this time, the first distance sensor 1a is
As shown in (A), a portion of the flange outer surface 10a of the wheel 10 between B and C, a portion of the outer surface of the wheel 10 between C and D, and a portion of the outer flange surface 10a of the wheel 10 between D and E again. The distance L1 is measured and the measurement result L1 is output. The output waveform from the first distance sensor 1a is shown in FIG.
The waveform is as shown in (C). In FIG. 4A, the flange 102 of the wheel 10 corresponds to a portion between B-C and a portion between D-E. In addition, the second distance sensor 1b, as shown in FIG.
The distance L2 to the portion between A and F of b is measured and the measurement result L2 is output. The output waveform from the second distance sensor 1b is a waveform as shown in FIG.

Next, the outputs L1 and L2 from the first distance sensor 1a and the second distance sensor 1b are output to the first amplifier 2a.
And the amplified outputs L1 and L2 of the sensor are amplified by the second amplifier 2b and the first A / D converter 3a and second A
The A / D conversion is performed by the / D conversion section 3b, and the A / D converted data L1 and L2 are stored in the sequential storage section 6 under the control of the first control section 4a and the second control section 4b. on the other hand,
The speed obtained by the speed detection unit 5 is the same as the elapsed time with the control unit 4
It is sequentially stored in the storage unit 6 under the control of a and 4b.

Then, in the processing unit 7, the data L1 and L2 stored in the storage unit 6 and the first distance sensor 1 are stored.
From the fixed distance L0 between a and the second distance sensor 1b, the thickness d of the flange 102 is successively calculated by the above calculation formula (1). The data of the thickness d of the flange 102 is stored in the storage unit 6 together with the measurement order of the wheels. Then, if necessary, the output screen display unit 8 displays the calculation result on the screen, or the output printing unit 9 prints out the calculation result.

Thus, the first distance sensor 1a and the second distance sensor 1a
The distance L from the first distance sensor 1a to the flange outer surface 10a of the wheel 10 in a non-contact state by the distance sensor 1b.
It is possible to measure the distance L2 from the first and second distance sensors 1b to the wheel inner surface 10b.
Measurement result L1 of the distance sensor 1a and the second distance sensor 1b
The thickness of the flange 102 of the wheel 10 can be measured from the measurement result L2 and the distance L0 between the first distance sensor 1a and the second distance sensor 1b. Therefore, the railway vehicle traveling wheel inspection device of the present invention in this embodiment can measure the thickness d of the flange 102 of the wheel 10 in the non-contact state, and thus measures the thickness of the wheel flange in the contact state. The problems of the conventional device can be solved. That is, the present invention is
The flange of the wheel 10 measured in the non-contact state as described above is free from the risk of deterioration of the measurement accuracy due to vibration, wear, displacement, etc. of the measurement jig that occurs when the wheel hits the measurement jig as in the conventional device. From the thickness d of 102 to the flange 102 of the wheel 10
It is possible to accurately grasp the wear situation of. In addition, according to the present invention, there is no possibility that the durability of the measurement jig is deteriorated due to the wheel directly hitting the measurement jig as in the conventional device, and the durability can be improved. Further, the present invention does not require much labor and labor due to maintenance in terms of the life of the measuring jig as in the conventional device, and the labor and labor can be significantly reduced accordingly.

Particularly, in this embodiment, since the speed detecting unit 5 is provided, the flange of the wheel 10 is calculated from the speed and the elapsed time of the wheel 10 which is obtained by the speed detecting unit 5 and stored in the sequential storage unit 6. The position of each part of 102 (the horizontal axis of the waveform indicating the thickness d of the flange 102 in FIG. 4D) can be calculated, and the data of the position of each part and the calculated flange 1
02 thickness d (thickness d of the flange 102 in FIG. 4D)
From the data of the vertical axis of the waveform) indicating the flange 1 of the wheel 10.
The shape of 02 can be reproduced. Then, the shape of the flange 102 of the wheel 10 can be reproduced and displayed on the screen by the output screen display unit 8 from the above data. In this way, the abnormal wear of the flange 102 can be more reliably determined.

In the above-described embodiment, another sensor (not shown) may be provided as a trigger for taking in the measurement data L1 and L2, and as shown in FIG. At points B, C, D, and E, which indicate the ends of the, the value of the thickness d thereof suddenly rises or falls, so that a sudden change may be used as a trigger.

In the above embodiment, the amount of data A / D converted by the A / D converters 3a and 3b is the same as that of the wheel 10.
If the speed is low, it will be enormous.
It is also possible to appropriately change the sampling cycle of the data L1 and L2 which are A / D converted in accordance with the speed of the wheel 10 input at a and 4b and store them in the storage unit 6.

Further, in the above-mentioned embodiment, if a plurality of pairs of distance sensors 1a and 1b are arranged along the rail 11, it is possible to grasp the wear condition for the circumference of the wheel 10.

Furthermore, in the above-described embodiment, the wear on the wheel 10 on one side has been described, but the vehicle 100 is equipped with both wheels (two wheels 10) connected by an axle (not shown), and The lateral pressure applied to the flanges 102 of the two wheels varies depending on the bending of the roller 11 and the loading condition, and the degree of wear varies. Therefore, the rail vehicle traveling wheel inspection device of the present invention shown in FIG. 1 may be installed for each of the rails 11 on both sides to measure the wear state of the flange 102 for both wheels.

5 to 7 show a second embodiment of the railway vehicle traveling wheel inspection device of the present invention. The apparatus of the first embodiment described above also captures data other than the thickness of the flange as shown in FIG. 4, but the apparatus of the second embodiment measures only the thickness of the flange. . In the figure, the same symbols as those in FIGS. 1 to 4 indicate the same components.

In FIG. 5, 103 is two rails 11
Is a notch provided in each of the substantially same parts. The notch 103 is provided in a portion of the rail 11 corresponding to the first distance sensor 1a and the second distance sensor 1b.

In FIG. 4, 12 is two auxiliary rails. The auxiliary rail 12 is laid inside the rail 11 substantially parallel to the rail 11 and corresponding to the section of the cutout 103. On the outer upper surface of the auxiliary rail 12, there is provided a traveling surface 12b on which the flange 102 of the wheel 10 rides and travels as it is. In addition, a low bank portion 12a that restricts lateral movement of the flange 102 is provided inside the auxiliary rail 12 in order to avoid derailment. Further, an inclined surface 12c is provided on the outer surface of the bank portion 12a of the portion of the auxiliary rail 12 connected to the rail 11 (both ends of the auxiliary rail 12) so that the flange 102 of the wheel 10 can travel smoothly. . Then, the first distance sensor 1a and the second distance sensor 1b are positioned at the same height position (or different height positions), and the rays emitted from the first distance sensor 1a are treads of the rail 11. It is set so that it is reflected by the flange 102 of the wheel 10 slightly below 11a. Further, the second distance sensor 1b is the second distance sensor 1
The wheel 1 above the bank portion 12a of the auxiliary rail 12 so that the light rays emitted from the auxiliary rail 12 are not blocked by the auxiliary rail 12.
It should be reflected at 0.

It will be done.

The railway vehicle traveling wheel inspection apparatus according to the second embodiment of the present invention has the above-mentioned structure, and its operation will be described below. First, as shown in FIG. 5, the running state of the wheels 10 is changed to the tread surface 10 on the rail 11.
Switching from the first running to the running of the flange 102 on the auxiliary rail 12, the first running of the wheel 10 is performed by the running of the flange 102.
Travel between the distance sensor 1a and the second distance sensor 1b. Then, the first distance sensor 1a operates as shown in FIGS.
As shown in (A), the distance L1 to the portion B-C of the flange outer surface 10a of the wheel 10 is measured, and the measurement result L
Outputs 1. The output waveform from the first distance sensor 1a is as shown in FIG. 7 (C). Note that FIG.
In (A), the portion of the flange 102 of the wheel 10 corresponds to the portion between B and C. In addition, the second distance sensor 1b, as shown in FIG. 6 and FIG.
The distance L2 to the portion A-D of 0b is measured and the measurement result L2 is output. The output waveform from the second distance sensor 1b is a waveform as shown in FIG. 7 (B).

By measuring the distance L1 to the flange outer surface 10a and the distance L2 to the wheel inner surface 10b by the first distance sensor 1a and the second distance sensor 1b as described above, the following first embodiment will be described. Similarly, the thickness d of the flange 102 is obtained.

In particular, in the second embodiment, the first
Since the distance sensor 1a measures only the distance L1 to the flange 102 of the wheel 10, the measured data L1 is compared with the sampled data L1 as can be understood by comparing FIG. 4 and FIG. If the maximum value is held, a symmetrical shape is formed around this maximum value, and the thickness d of the flange 102, that is, the profile of the flange 102 can be easily obtained. The sequentially sampled data L1 can be confirmed by printing out or displaying it on the screen.

The second embodiment can achieve the same effects as those of the first embodiment.

Next, even when the vehicle 100 is meandering and traveling, it is possible to measure the thickness d of the flange 102 of the wheel 10 in a non-contact manner by the railway vehicle traveling wheel inspection apparatus of the present invention. And FIG. 9 will be described. That is, even when the vehicle 100 is meandering as shown by the chain double-dashed line in FIGS. 8 and 9, the distance between the pair of distance sensors (the first distance sensor 1a and the second distance sensor 1b) is large. L0 is constant. Further, the distance L1 from the first distance sensor 1a to the flange outer surface 10a of the wheel 10 and the distance L2 from the second distance sensor 1b to the wheel inner surface 10b are as shown in FIG. (L1 + L3), (L2-L3), or (L1-L3), (L2 + L3) as shown in FIG.
If both distances are added, the variation L3 due to meandering is canceled out, and the added value (L1 + L2) of both distances does not change. As a result,
Even when the vehicle 100 is meandering and traveling, the railway vehicle traveling wheel inspection apparatus of the present invention accurately measures the thickness of the flange without touching the wheels as described in the above embodiments. it can.

Further, in the above-described embodiment, the thickness d of the flange 102 of the wheel 10 of the running railway vehicle 100 is measured. By stopping and moving the device of the present invention along the rail 11, the thickness d of the flange 102 of the wheel 10 of the stopped railway vehicle 100 is d.
Can also be measured in a non-contact state.

[0038]

As described above, the railway vehicle running wheel inspection apparatus of the present invention can accurately grasp the wear state of the wheel flange by measuring the thickness of the wheel flange in a non-contact state. And the durability of the device is improved,
Further, the labor and labor required for maintenance of the device can be reduced.

[Brief description of drawings]

FIG. 1 is a schematic view of an inspection state showing a first embodiment of a railway vehicle traveling wheel inspection apparatus of the present invention.

FIG. 2 is a configuration block diagram showing a first embodiment of the railway vehicle traveling wheel inspection device of the present invention.

3 is a principle explanatory view of the railway vehicle traveling wheel inspection device of the present invention shown in FIG.

FIG. 4A is an explanatory diagram showing a measurement locus of a distance sensor with respect to wheels, FIG. 4B is an output waveform diagram of a second distance sensor,
(C) is an output waveform diagram of the first distance sensor, and (D) is a diagram showing the thickness of the flange.

FIG. 5 is a schematic diagram of a wheel traveling state and an inspection state showing a second embodiment of the railway vehicle traveling wheel inspection device of the present invention.

6 is an explanatory view of the principle of the railway vehicle traveling wheel inspection device of the present invention shown in FIG.

FIG. 7A is an explanatory diagram showing a measurement locus of a distance sensor with respect to a wheel, FIG. 7B is an output waveform diagram of a second distance sensor,
(C) is an output waveform diagram of the first distance sensor, and (D) is a diagram showing the thickness of the flange.

FIG. 8 is an explanatory diagram showing an inspection state when the vehicle is meandering (to the right) and traveling.

FIG. 9 is an explanatory diagram showing an inspection state when the vehicle is meandering (to the left) and traveling.

[Explanation of symbols]

1a ... 1st distance sensor, 1b ... 2nd distance sensor, 2a ...
1st amplification part, 2b ... 2nd amplification part, 3a ... 1st A / D conversion part, 3b ... 2nd A / D conversion part, 4a ... 1st control part, 4b
... second control unit, 5 ... speed detection unit, 5a ... first detection unit, 5
b ... 2nd detection part, 6 ... Storage part, 7 ... Processing part, 8 ... Output screen display part, 9 ... Output printing part, 10 ... Running wheel, 10a ...
Flange outer surface (flange surface outside wheel 10), 10b
... inside surface of wheel (back surface inside wheel 10), 11 ...
11a ... Tread (rail surface), 12 ... auxiliary rail, 1
2a ... bank part, 12b ... running surface, 12c ... sloping surface, 1
00 ... railway vehicle, 101 ... tread, 102 ... flange, 1
03 ... Notch, L1 ... Distance from first distance sensor to outer surface of flange, L2 ... Distance from second distance sensor to inner surface of wheel, L3 ... Distance between first distance sensor and second distance sensor.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Akio Shoji 832-2 Horiguchi, Katsuta-shi, Ibaraki-2 Hitachi Techno Engineering Co., Ltd. Mito Works (72) Masayoshi Kawasaki 832-2 Horiguchi, Katsuta-shi, Ibaraki Hitachi Techno Engineering Co., Ltd. Mito Works

Claims (7)

[Claims] 1. A first distance sensor for measuring a distance to an outer surface of a flange of a wheel of a railway vehicle, a second distance sensor for measuring a distance to an inner surface of the wheel, a measurement result of the first distance sensor and the above And a means for calculating the thickness of the flange of the wheel from the measurement result of the second distance sensor and the distance between the first distance sensor and the second distance sensor. . 2. A storage unit for storing the measurement result of the first distance sensor, the measurement result of the second distance sensor, and the calculation result of the means for calculating the thickness of the wheel flange, and the thickness of the wheel flange. The railway vehicle traveling wheel inspection device according to claim 1, further comprising: an output unit that outputs the calculation result of the means. 3. A first distance sensor which is installed on the outside of the rail and measures the distance to the outer flange surface of the wheel of the railway vehicle and outputs the measurement result. A second distance sensor that measures the distance to the back surface inside the and outputs the measurement result, and the output of the measurement result from the first distance sensor and the second distance sensor.
An A / D conversion unit for sequentially A / D converting the output of the measurement result from the distance sensor, a storage unit for sequentially storing the output data from the A / D conversion unit, and the A / D conversion unit. Between the control unit that controls to sequentially fetch the output data and store it in the storage unit, the output data from the A / D conversion unit stored in the storage unit, and the first distance sensor and the second distance sensor. A processing unit that calculates the thickness of the flange of the wheel from the distance data, an output screen display unit that displays the calculation result of the processing unit on the screen, and an output printing unit that prints out the calculation result. A railway vehicle running wheel inspection device characterized by the above. 4. The first distance sensor and the second distance sensor,
The railway vehicle running wheel inspection device according to claim 3, wherein the running vehicle wheel inspection device is installed above a tread surface of the rail in order to measure a distance to a flange surface and a back surface of a wheel traveling on the rail. . 5. A cutout portion is provided in a portion of the rail corresponding to the first distance sensor and the second distance sensor, and an auxiliary rail for traveling with a wheel flange is laid in a section of the cutout portion. The railway vehicle traveling wheel inspection device according to claim 3, wherein the first distance sensor is installed below the tread surface of the rail to measure the distance to the flange surface. 6. A speed detecting unit for detecting a speed of a wheel whose flange thickness is measured by the first distance sensor and the second distance sensor, and a speed and a progress of the wheel to be inspected obtained by the speed detecting unit. Calculate the position of each part of the wheel flange from time and reproduce the shape of the wheel flange from the position of each part of the wheel flange and the thickness of the wheel flange obtained in the processing section, and reproduce that 6. The railway vehicle traveling wheel inspection apparatus according to claim 3, 4 or 5, further comprising: means for displaying the shape of the formed wheel flange on the output screen display unit. 7. The control unit is configured to appropriately change a cycle of sampling the output data from the A / D conversion unit according to the traveling speed of the vehicle obtained by the speed detection unit. The railway vehicle running wheel inspection device described.