JP3107341B2 - Railcar traveling wheel inspection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway vehicle traveling wheel inspection apparatus, and more particularly to a method of measuring the thickness of a traveling wheel flange of a railway vehicle in a non-contact manner to accurately grasp the wear state of the wheel flange. Device that can be.

[0002]

2. Description of the Related Art Traveling wheels (hereinafter abbreviated as wheels) of a railway vehicle travel on a rail surface while being guided by a flange at an inner portion thereof. -Lateral pressure and slippage occur with the inner surface of the flange, causing gradual wear of the flange. The wear of the wheel flanges must be monitored at all times, since the wear of the wheel flanges will further progress, and if it exceeds a certain limit, the vehicle will derail.

[0003] Therefore, conventionally, when inspecting or repairing a railway vehicle, the wear amount of the flange of the wheel is measured by a special gauge, caliper, or the like. However, in this case, much manpower and labor were required.

[0004] Therefore, as shown in Japanese Patent Publication No. 57-37801, a contact is applied to a flange of a wheel, the degree of movement of the contact is transmitted to a differential transformer, converted into an electric signal, and manually and labor-intensive. It has been proposed to reduce

[0005]

However, in the above-mentioned conventional contact-type abrasion inspection apparatus, no matter how smoothly the wheel travels on the rail surface, the measurement is performed when the wheel hits the measuring jig. There is a problem in that the jig is subject to vibration, wear, displacement, and the like, and the measurement accuracy is gradually reduced. Further, since the wheel directly hits 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, and there is a problem in that labor and labor are greatly reduced.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus for inspecting a traveling wheel of a railway vehicle, which can accurately grasp the wear condition of a flange of a wheel, improve the durability of the apparatus, and reduce the labor and labor required for maintenance of the apparatus. Is to provide.

[0007]

In order to achieve the above object, a railway vehicle running wheel inspection apparatus according to the present invention is provided outside a rail, and has a flange surface outside a wheel of a railway vehicle running on the rail. And a first distance sensor that measures the distance to the non-contact and outputs the measurement result, and a distance that is installed inside the rail and measures the distance to the back surface inside the wheel in a non-contact manner. A second distance sensor for outputting the speed, a speed detecting unit for detecting the speed of the wheel, and the first distance sensor .
The measurement results of the distance sensor and the second distance sensor
And the distance data between the first distance sensor and the second distance sensor.
Calculate the thickness of the wheel flange from the
Measurement results of each of the first distance sensor and the second distance sensor
And the speed of the wheel to be inspected obtained by the speed detector
From the elapsed time, the first distance of the flange of the wheel
Where the distance is measured by the sensor and the second distance sensor.
Calculate the position of each part to be
From the position and the thickness of the wheel flange obtained by the above calculation
A processing unit for reproducing the shape of the wheel flange, and means for displaying the thickness of the wheel flange obtained by the processing unit and the reproduced shape of the flange of the wheel are provided.

[0008]

According to the present invention, the first distance sensor and the second distance sensor measure 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 in a non-contact state. In addition, the processing unit may determine the flange distance of the wheel based on 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. Can be calculated . That is, as shown in FIG. 3 and FIG. 6, the first distance sensor and the second distance sensor are previously set at a fixed distance L0, and the distance L1 and the second distance from the first distance sensor to the outer surface of the flange of the wheel. By measuring the distance L2 from the sensor to the inner surface of the wheel, the thickness d of the flange of the wheel can be calculated by the following equation (1). d = L0− (L1 + L2) (1) As described above, since the present invention can measure the thickness of the wheel flange in a non-contact state, the present invention measures the thickness of the wheel flange in a contact state. By solving the problems of the conventional device, it is possible to accurately grasp the state of wear of the wheels. That is, the present invention is the sale of the flange obtained by the thickness and speed detection section of the wheel of the wheel measured in a non-contact state flanges
That is, the distance is calculated by the first distance sensor and the second distance sensor.
The shape of the flange of the wheel can be reproduced from the measured positions of the respective parts and the wear state of the wheel can be accurately grasped.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a railway vehicle running wheel inspection apparatus according to an embodiment of the present invention. FIGS. 1 to 4 show a first embodiment of a railway vehicle traveling wheel inspection apparatus according to the present invention.
The following shows an example.

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

1a and 1b are installed outside and inside the rail 11, and measure the distance (the shortest distance from the sensor) to the wheel 10 of the railway vehicle 100 traveling on the rail 11. Are the first distance sensor and the second distance sensor.
The first distance sensor 1a is installed outside the rail 11 as shown in FIGS. 2 and 3, measures the distance L1 to the flange outer surface 10a of the wheel 10, and measures the measurement result L1.
Is output. Further, the second distance sensor 1b
As shown in FIG. 2 and FIG.
It 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 applied to 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 by an electromagnetic induction action. It is composed of an eddy current type displacement sensor utilizing the measurement of the distance between the sensor and the object based on the magnitude of the eddy current, or a combination of a light emitting element using a light emitting diode or a semiconductor laser and a light position detecting element. Or an ultrasonic displacement sensor that measures the distance between the sensor and the object by 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 surface 11a of the rail 11 so that light emitted from the distance sensors 1a and 1b is not blocked by the rail 11. The installation height of the first distance sensor 1a and the installation height of the second distance sensor 1b may be the same,
Also, they may be different.

In FIG. 2, 2a and 2b are first amplifiers,
The second amplifying unit. The first amplifier 2a and the second amplifier 2b are connected to the first distance sensor 1a and the second distance sensor 1a.
b and the first distance sensor 1a
And the outputs L1 and L2 from the second distance sensor 1b.

In FIG. 2, reference numerals 3a and 3b denote 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 connected to the first amplifier 2a.
And the second amplifier 2b, and sequentially A / D-converts the amplified outputs L1 and L2 from the first amplifier 2a and the second amplifier 2b.

5 is 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 traveling direction A of the railway vehicle 100)
It is a speed detection unit for detecting (a moving speed of 0). The speed detector 5 is of an eddy current type, an optical type, or an ultrasonic type, for example, like the distance sensors 1a and 1b. As shown in FIGS. 1 and 2, two speed detectors 5a and 5b are provided. In front of the first distance sensor 1a and the second distance sensor 1b (the railcar 10
0 in front of the traveling direction A). The speed detecting unit 5 obtains the speed of the wheel 10 from the passing time of the wheel 10 passing between the two detecting units 5a and 5b (between one detecting unit 5a and the other detecting unit 5b). It is. Also, the speed detecting section 5, the inspected vehicle wheel 1
This is to obtain the elapsed time when 0 passes between the two detectors 5a and 5b.

In FIG. 2, 4a and 4b are first control units,
This is the 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 connected to the speed detection unit 5, respectively. The first control unit 4a and the second control unit 4b are provided with output data L1 and L2 from the first A / D conversion unit 3a and the second A / D conversion unit 3b, and wheels 10 from the speed detection unit 5, respectively. The speed and the elapsed time are sequentially taken and stored in a storage unit 6 described later. Further, the first control unit 4a and the second control unit 4b
According to the speed of the wheel 10 obtained by the speed detection unit 5,
The sampling period 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 denotes a storage unit. The storage unit 6 is connected to the first control unit 4a and the second control unit 4b, respectively, and stores the output data L1 and L2 from the first A / D conversion unit 3a and the second A / D conversion unit 3b. Under the control of the first control unit 4a and the second control unit 4b, the data is sequentially stored, and the speed and elapsed time of the wheel 10 from the speed detection unit 5 are stored in the first control unit 4a and the second control unit 4b.
Are sequentially stored under the control of.

In FIG. 2, reference numeral 7 denotes 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 fixed and installed in advance.
The thickness d of the flange 102 of the wheel 10 is sequentially calculated from the fixed distance L0 according to the above equation (1) to determine the flange shape. Further, the processing unit 7 converts the data of the 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 determines the first distance sensor 1 a and the second distance sensor out of the flange 102 of the wheel 10 based on the speed of the wheel 10 and the elapsed time obtained by the speed detection unit 5.
The location where the distances L1 and L2 are measured by the
Is sampled by the first control unit 4a and the second control unit 4b.
Calculates the position of each part is a ring has been point) of the wheel 10 from the thickness d of the flange 102 of the wheel 10 obtained by the position and the arithmetic expression of each part (1) of the flanges 102 of the wheel 10 The shape of the flange 102 is reproduced, and the reproduced shape of the flange 102 of the wheel 10 is displayed on an output screen display unit 8 described later.

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 display the calculation results of the processing unit 7 on the screen from the processing unit 7 or the storage unit 6 or print the results. Output.

The railway vehicle running wheel inspection apparatus according to the first embodiment of the present invention has the above-described configuration, and its operation will be described below. First, as shown in FIGS. 1 and 2, a railway vehicle 100 for inspecting a wear state of a flange 102 is caused to travel on a rail 11 in a direction of an arrow A, and wheels 10 are moved by a first distance sensor 1 a and a second distance sensor 1.
b while passing between the two detection units 5a and 5b of the speed detection unit 5. At this time, as shown in FIG. 4, the wheel 10 moves in the direction of arrow A while rotating in the direction of arrow B. 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
As shown in (A), a portion between B and C of a flange outer surface 10a of the wheel 10 and a portion between CD of an outer surface of the wheel 10 and a portion between D and E of the flange outer surface 10a of the wheel 10 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 FIG. In FIG. 4A, the portion of the flange 102 of the wheel 10 corresponds to a portion between BC and a portion between DE. Further, as shown in FIG. 4 (A), the second distance sensor 1b
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 supplied to the first amplifier 2a.
And the amplified outputs L1 and L2 of the sensors are converted by the first A / D converter 3a and the second A
The data L1 and L2 are A / D converted by the / D conversion unit 3b, and the A / D converted data L1 and L2 are sequentially stored in the storage unit 6 under the control of the first control unit 4a and the second control unit 4b. on the other hand,
The speed obtained by the speed detection unit 5 is used by the control unit 4 together with the elapsed time.
The data is sequentially stored in the storage unit 6 under the control of a and b.

Then, in the processing section 7, the data L1, L2 stored in the storage section 6 and the first distance sensor 1 are stored.
The thickness d of the flange 102 is sequentially calculated from the fixed distance L0 between the second distance sensor 1a and the second distance sensor 1b by the above equation (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. The calculation result is displayed on the screen by the output screen display unit 8 as necessary, or the calculation result is printed out by the output printing unit 9.

As described above, the first distance sensor 1a and the second
Distance L from first distance sensor 1a to outer surface 10a of flange of wheel 10 in a non-contact state by distance sensor 1b.
The distance L2 from the first and second distance sensors 1b to the wheel inner surface 10b can be measured.
Measurement result L1 of distance sensor 1a and 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 running wheel inspection device of the present invention in this embodiment can measure the thickness d of the flange 102 of the wheel 10 in a non-contact state, and thus measure the thickness of the wheel flange in the contact state. Various problems of the conventional device can be solved. That is, the present invention
There is no danger that the measurement accuracy will decrease due to vibration, wear, or displacement of the measurement jig that occurs when the wheel hits the measurement jig as in the conventional device, and the flange of the wheel 10 measured in a non-contact state as described above. From the thickness d of the flange 102 of the wheel 10
It is possible to accurately grasp the wear state of the tire. Further, according to the present invention, there is no possibility that the durability of the measuring jig is reduced due to the direct contact of the wheel with the measuring jig as in the conventional apparatus, and the durability can be improved. Furthermore, the present invention does not require much labor and labor for maintenance in terms of the life of a measuring jig such as a conventional device, and can significantly reduce labor and labor for that.

In particular, the present invention provides a speed detecting unit 5 and a processing unit.
7 is provided, the processing is performed on the basis of the speed of the wheel 10 and the elapsed time obtained by the speed detecting section 5 and sequentially stored in the storage section 6.
In section 7, of the flange 102 of the wheel 10, the
The distance L is determined by the first distance sensor 1a and the second distance sensor 1b.
1, where L2 was measured (in this example, FIG. 4 (A)
A location between BC and a location between DE and the first
Sampled by the control unit 4a and the second control unit 4b
Position of each part is places) flange 1 in (FIG. 4 (D)
The horizontal axis of the waveform indicating the thickness d of the flange 102 can be calculated, and the data of the position of each part and the calculated thickness d of the flange 102 can be calculated.
The shape of the flange 102 of the wheel 10 can be reproduced from the data (the vertical axis of the waveform indicating the thickness d of the flange 102 in FIG. 4D). That is, a portion of the wheel 10 that is worn.
Is a portion that contacts the rail 11, and
And the flange outer surface 10a. Here, the total value of the present invention
The measurement object is the flange outer surface 10a. On the other hand, wheel 10
The back gauge surface 10b does not wear. For this,
The measurement result (distance) L2 of the second distance sensor 1b is franc.
At each part (horizontal axis of the waveform in FIG. 4B)
No change. As a result, the first distance sensor 1a
To the measurement result L1 and the measurement result L2 of the second distance sensor 1b.
The thickness d of the flange 102 obtained from the back gauge surface 1
By adding to the position on the 0b side, the flange
The shape of 102 can be made into a waveform, that is, reproduced.
You. The output screen display unit 8 can reproduce and display the shape of the flange 102 of the wheel 10 on the screen from the above data. In this way, the determination of abnormal flange 102 wear can be made more reliable.

In the above-described embodiment, another sensor (not shown) may be provided as a trigger for taking in the measurement data L1 and L2, as shown in FIG. Since the value of the thickness d sharply rises or falls at the points B, C, D, and E, which indicate the end portions, the time when the thickness d suddenly changes may be used as a trigger.

In the above-described embodiment, the data amount A / D converted by the A / D converters 3a and 3b is equal to
When the speed is low, it becomes enormous.
A / D-converted data L1 and L2 may be stored in the storage unit 6 by appropriately changing the sampling cycle of the data L1 and L2 in accordance with the speed of the wheel 10 input at a and 4b.

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 state of wear of the circumference of the wheel 10.

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

FIGS. 5 to 7 show a second embodiment of the train wheel running wheel inspection apparatus according to the present invention. Although the apparatus of the first embodiment described above takes in data other than the thickness of the flange as shown in FIG. 4, the apparatus of the second embodiment measures only the thickness of the flange. . In the drawings, the same reference numerals as those in FIGS. 1 to 4 denote the same components.

In FIG. 5, reference numeral 103 denotes two rails 11.
Are cutouts provided in substantially the same portions. 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. 5 , reference numeral 12 denotes two auxiliary rails. The auxiliary rail 12 is laid inside the rail 11 substantially in parallel with the rail 11 so as to correspond to the section of the notch 103. A running surface 12b on which the flange 102 of the wheel 10 rides and runs as it is provided on the outer upper surface of the auxiliary rail 12. Further, a low bank portion 12a for restricting the lateral movement of the flange 102 is provided inside the auxiliary rail 12 in order to avoid a derailment. Further, an inclined surface 12c is provided on the outer surface of the bank portion 12a at a connection portion of the auxiliary rail 12 with the rail 11 (both ends of the auxiliary rail 12) to make the running of the flange 102 of the wheel 10 smooth. . The first distance sensor 1a and the second distance sensor 1b are located at the same height position (or at different height positions), and light rays and the like emitted from the first distance sensor 1a are tread on the rail 11. The light is reflected by the flange 102 of the wheel 10 slightly below 11a. The second distance sensor 1b is the second distance sensor 1b.
b above the bank portion 12a of the auxiliary rail 12 so that light beams emitted from the auxiliary rail 12 are not blocked by the auxiliary rail 12.
The light is reflected at 0.

[0031]

The railroad vehicle running wheel inspection apparatus according to the second embodiment of the present invention has the above-described configuration, and its operation will be described below. First, as shown in FIG.
The first traveling is switched to the traveling of the flange 102 on the auxiliary rail 12, and the traveling of the flange 102 causes the wheel 10 to be moved to the first position.
The vehicle travels between the distance sensor 1a and the second distance sensor 1b. Then, the first distance sensor 1a is used as shown in FIGS.
As shown in (A), the distance L1 to the portion between B and 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 a waveform as shown in FIG. FIG.
In (A), the portion of the flange 102 of the wheel 10 corresponds to the portion between B and C. Further, as shown in FIGS. 6 and 7A, the second distance sensor 1b is connected to the inner surface 1 of the wheel.
The distance L2 to the portion between A and 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.

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 and second embodiments 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 compares the sampled data L1 as can be understood by comparing FIGS. If the maximum value is held, the shape becomes symmetrical about the 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 functions and effects as those of the first embodiment.

Next, FIG. 8 shows that the railway vehicle running wheel inspection apparatus of the present invention can measure the thickness d of the flange 102 of the wheel 10 in a non-contact manner even when the vehicle 100 is running meandering. This will be described with reference to FIG. That is, even when the vehicle 100 is running meandering as indicated by the two-dot chain line in FIGS. 8 and 9, the distance between the pair of distance sensors (the first distance sensor 1 a and the second distance sensor 1 b). L0 is constant. 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 respectively shown in FIG. (L1 + L3), (L2-L3), or (L1-L3), (L2 + L3) as shown in FIG.
If the two distances are added, the fluctuation L3 due to the meandering is canceled out, and the added value (L1 + L2) of the two distances does not change. As a result,
Even when the vehicle 100 is traveling meandering, the railway vehicle traveling wheel inspection device of the present invention can accurately measure the thickness of the flange without touching the wheels as described in the above embodiment. it can.

[0037]

[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, labor and labor due to maintenance of the apparatus can be reduced.

[Brief description of the 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 block diagram showing the configuration of a first embodiment of a railcar traveling wheel inspection apparatus according to the present invention.

FIG. 3 is a diagram illustrating the principle of the railway vehicle traveling wheel inspection device of the present invention shown in FIG. 2;

4A is an explanatory diagram showing a measurement trajectory 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, (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 apparatus of the present invention.

6 is a diagram illustrating the principle of the railway vehicle traveling wheel inspection device of the present invention shown in FIG.

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

FIG. 8 is an explanatory diagram illustrating an inspection state when the vehicle is traveling in a meandering (rightward) direction.

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

[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: second detection unit, 6: storage unit, 7: processing unit, 8: output screen display unit, 9: output printing unit, 10: running wheels, 10a ...
Flange outer surface (outer flange surface of wheel 10), 10b
... wheel inner surface (back surface inside wheel 10), 11 ...
11a: tread surface (rail surface), 12: auxiliary rail, 1
2a: Bank portion, 12b: Running surface, 12c: Inclined surface, 1
00: railway car, 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.

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Akio Shoji 832-2 Horiguchi, Katsuta-shi, Ibaraki Pref. Hitachi Technology Co., Ltd. Inside Mito Works (72) Inventor Masayoshi Kawasaki 832-2 Horiguchi, Katsuta-shi, Ibaraki Pref. Hitachi Kuno Engineering Co., Ltd. Mito Plant (56) References JP-A-62-135712 (JP, A) JP-A-53-151943 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01B 7/00-7/34 G01B 11/00-11/30 G01B 21/00-21/32

Claims (4)

(57) [Claims] Claims: 1. A device installed outside a rail , and on the rail
A first distance sensor that measures the distance to the outer flange surface of the wheel of the running railway vehicle in a non-contact manner and outputs the measurement result; and a first distance sensor that is installed inside the rail and that is connected to a back surface inside the wheel. A second distance sensor that measures the distance in a non-contact manner and outputs the measurement result, a speed detector that detects the speed of the wheel, and a measurement of each of the first distance sensor and the second distance sensor
Result and distance between the first distance sensor and the second distance sensor
From the separation data, calculate the thickness of the above-mentioned wheel flange.
In addition, each of the first distance sensor and the second distance sensor
Inspection target wheel obtained by the measurement result and the speed detection unit
From the speed and elapsed time of the flange of the wheel,
The above distance was measured by the first distance sensor and the second distance sensor
Calculate the position of each part, which is a point, and
The position of each part and the thickness of the wheel flange obtained by the above calculation
A processing unit that reproduces the shape of the flange of the wheel from the above, and a unit that displays the thickness of the flange of the wheel obtained by the processing unit and the shape of the reproduced flange of the wheel. Railcar traveling wheel inspection device. 2. The first distance sensor and the second distance sensor.
The flange surface of the wheels running on the rails and the
Above the tread of the rail to measure the distance to the
The railway vehicle traveling wheel inspection device according to claim 1, wherein the inspection device is installed in a vehicle. 3. The first distance sensor and the second distance sensor of the rail.
A notch is provided in a portion corresponding to the two-distance sensor, and the notch is provided.
Auxiliary rail for running on the wheel flange in the section of
Lay, and at least the first distance sensor, the tread surface of the rail
Install it below and measure the distance to the flange surface
The railroad vehicle traveling wheel inspection device according to claim 1, wherein: 4. The running speed of the vehicle obtained by the speed detecting section.
The first distance sensor and the second distance sensor according to the degree
Appropriate sampling period to take each measurement result sequentially
A control unit for changing and storing the data in the storage unit, wherein the processing unit uses the data stored in the storage unit to store the
Calculating the thickness of the wheel flange
Item 2. The railway vehicle running wheel inspection device according to item 1 .