JPH08192746A - Ultrasonic traveling track dimension measuring device - Google Patents

Abstract

PURPOSE: To attain the optimization of maintenance and inspection by automatically remotely inspecting the interval and wear of a traveling tracks. CONSTITUTION: Several non-contact aerial ultrasonic sensors 17, 18, 19 and 20 are provided on the upper part or side of traveling tracks and mounted on a traveling truck 22 provided with a transmitting and receiving section, distance measuring section, data storing section and display section. Thus, the inspection operation of the traveling track can be substantially simplified. Further, the replacement period and inspection cycle of the track can be figured out of statistical control data to greatly improve the maintenace operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for measuring track intervals for running trains and measuring wear of running tracks.

[0002]

2. Description of the Related Art FIG. 5 is a conceptual view of a conventional device for measuring a running track interval. In the figure, 1 is a flat plate, 2 and 3 are running tracks, 4, 5 and 6 are rollers for running track surfaces, and 7 are rollers. , 8
Is an inner surface guide roller of the traveling track 3, 9 and 10 are intersections of the track side guide roller and the flat plate, 11 is a straight line connecting the intersection of the track side guide roller and the flat plate, and 12 is a track side guide roller and the flat plate. A normal line on a flat plate from a straight line connecting the intersections, 13 and 14 are orbital distance measurement rollers, 1
Reference numerals 5 and 16 are springs.

In the conventional running distance measuring device constructed as described above, the lower surface of the flat plate 1 is provided with three rollers 4, 5, 6 capable of running on the tracks 2, 3. The flat plate 1 can travel while keeping parallel to the raceway surface by the roller running in contact with the raceway surface. Further, the flat plate 1 is provided with two rollers 7 and 8 having a rotation axis perpendicular to the flat plate. While pressing these two rollers 7 and 8 against the inner surface of the track 3 on one side, the flat plate 1
The flat plate 1 of the rotating shaft of the two rollers 7 and 8
A line 12 is drawn on the flat plate 1 at a right angle to the line 11 from the midpoint of the line segment 11 connecting the intersection points 9 and 10 with the two measurement rollers 13 and 14 having a rotation axis perpendicular to the flat plate. ,
The rollers 13 and 14 are pressed against the side surfaces of the left and right tracks 2 and 3 by springs 15 and 16, respectively, and the entire flat plate 1 is moved in the longitudinal direction of the tracks 2 and 3 to measure the rollers 13 and 14. The orbital distance is measured by measuring the distance between the tracks with a tape measure.

[0004]

In the conventional running track interval measuring method as described above, it is necessary to move the entire measuring device while bringing the roller into contact with the inner surface of the running track. It takes a lot of time, and at crossings, places where there are auxiliary rails, intersections, etc., the crossing inside the track or another track may be an obstacle and measurement may not be possible, or the track may have long breaks at points. In addition, the rollers cannot be crossed and it is necessary to add auxiliary rollers. Also, track wear cannot be measured by this method.

The present invention has been made in order to solve the above-mentioned problems, and it remotely and automatically checks the intervals of running tracks and wear, stores measurement data for each inspection date, and uses statistics by a computer. The purpose of management is to predict the wear of the running track and the replacement time, and to optimize maintenance inspection.

[0006]

In the ultrasonic type traveling track dimension measuring apparatus according to the present invention, an ultrasonic sensor is held in the upper or side space of the traveling track and substantially in the center of the front and rear wheels of the inspection carriage. It is attached together with the mechanical part.

Further, the present invention is provided with an ultrasonic sensor for measuring the side portion of the head of the running track and an ultrasonic sensor for measuring the non-wear side portion of the running track.

The present invention comprises an ultrasonic sensor for measuring the crown of the running track and an ultrasonic sensor for measuring the base of the running track.

Further, the present invention has three linked bogies, and the ultrasonic sensor is mounted on an intermediate bogie from which a reference line is obtained which is movable parallel to the running track surface and at right angles to the track longitudinal direction. Has been.

[0010]

According to the present invention, a non-contact type aerial ultrasonic sensor can be moved in a side space or an upper space of a running track while maintaining a right angle to the running track surface parallel to the running track surface via a holding mechanism. Since it is mounted near the center between the front and rear wheels of the trolley and the trolley can travel, the required measurement data can be instantaneously measured, displayed, and stored simply by driving the trolley.

Further, since the present invention is provided with the ultrasonic sensor for measuring the lateral side position of the running track head and the ultrasonic sensor for measuring the position of the non-wearing part on the side surface of the running track, the distance between the running tracks and the wear amount are separated. Can be measured.

Since the present invention is provided with the ultrasonic sensor for measuring the crown position of the running track and the ultrasonic sensor for measuring the rail base position, the wear amount of the crown of the running track can be measured.

Further, according to the present invention, an ultrasonic sensor is mounted on an intermediate carriage which has three carriages connected to each other and provides a reference line which is parallel to the traveling track surface and is movable at a right angle to the longitudinal direction of the track. Therefore, even if the running track is curved, the distance between the running tracks can be stably measured.

[0014]

【Example】

Example 1. 1A is a top view showing an embodiment of the present invention, FIG. 1B is a front view, and FIG. 2 is a block diagram of the present invention. In the figure, reference numerals 2 and 3 are exactly the same as those of the conventional device. Reference numeral 17 is an ultrasonic sensor for measuring the lateral dimensions of the head side portions of the running tracks 2, 3, and 18 is an ultrasonic sensor for measuring the lateral dimensions of the non-wearing portions of the running tracks 2, 3. Reference numeral 19 is an ultrasonic sensor for measuring the height dimension of the running tracks 2, 3, 20 is an ultrasonic sensor for measuring the height dimension of the running track base, 21 is an ultrasonic sensor holding mechanism, and 22 is a train. A carriage for obtaining a reference line that is parallel to the traveling track surface of the vehicle and can move while maintaining a right angle in the longitudinal direction of the track, 23 is a transmitting / receiving unit, 24 is a measuring unit, 25
Is a measurement data display unit, 26 is a measurement data storage unit, 3
Reference numeral 9 is a line parallel to the axle located at the center of the front and rear wheels.

In the ultrasonic traveling track dimension measuring apparatus configured as described above, when an electric signal is sent from the transmitting side of the transmitting / receiving section 23 to the ultrasonic sensors 17-20, the ultrasonic sensors 17-20 are sent. Generates ultrasonic waves, and subsequently receives reflected waves from the reflectors corresponding to the respective arrangements and is sent to the receiving side of the transmission / reception unit 23, and the amplified signal changes the ultrasonic wave propagation time in the measurement unit 24. The distance is calculated and each dimension is calculated, and the result is transferred to the display unit 25 and the storage unit 26. On the other hand, since the ultrasonic sensors 17 to 20 are attached to the holding mechanism 21 at predetermined positions, for example, by inputting the relative position of the ultrasonic sensor 17 to the measuring unit 24 in advance, the left and right of the traveling tracks 2 and 3 can be detected. It is possible to obtain the distance in a non-contact state. Further, by comparing the signals of the ultrasonic sensor 17 and the ultrasonic sensor 18 and the signal of the ultrasonic sensor 19 and the ultrasonic sensor 20, the wear condition of the heads (portions that come into contact with the wheels) of the running tracks 2 and 3 can be determined. It is possible to measure. In addition, the ultrasonic sensor used for this measurement has a directivity angle of about 2 to 3 °, but the sensor is attached to the center of the front and rear wheels of the inspection trolley, so even at the corners of the track, it is possible to avoid The orthogonality with the beam of the sound wave sensor is almost maintained, and stable measurement is possible.

Example 2. FIG. 3 is a view showing a variation of the ultrasonic sensor for measuring the inner surface of the running track. Reference numerals 2 and 21 are exactly the same as those in the first embodiment, 27 is an ultrasonic sensor for measuring the inner surface of the running track, and 28. Is a reflector installed so that the ultrasonic waves oscillated from the ultrasonic sensor 27 are vertically incident on the side surface of the running track, and 40 is the path of the ultrasonic beam.

In the ultrasonic type traveling track dimension measuring device configured as described above, the ultrasonic sensor 27 for measuring the side dimension of the traveling track is installed downward and above the track surface, and the reflecting plate 28 is used. By making an ultrasonic wave vertically incident on the side surface of the running track 2, a crossing plate for railroad crossing is provided in the track.
Alternatively, even if another track exists at the branch point, the distance to the side surface of the track can be measured without contacting the cross plate or track with the ultrasonic sensor.

Example 3. FIG. 4 shows an apparatus for obtaining a reference line that is movable parallel to the running track surface of the train and keeping a right angle in the longitudinal direction of the track, and install the holding mechanism on the reference line. In the figure, 2 and 3 are exactly the same as those of the conventional device and the first embodiment. 29 is a trajectory measurement reference line,
30 is a leading carriage, 31 is an intermediate carriage, 32 is a tail carriage, 3
3 is the center point of the four wheels on the lead truck 30, 34 is the center point between the front wheels on the intermediate truck 31, 35 is the center point between the rear wheels of the intermediate truck 31, and 36 is the four wheels of the tail truck 32. The center point, 37 is a connecting rod that connects the center points 33 and 34,
Reference numeral 38 is a connecting rod that connects the center points 35 and 36.

In the device constructed as described above, a head carriage 30, an intermediate carriage 31, and a tail carriage 32 having two mutually parallel axles having orbital wheels at both ends are arranged on the tracks 2 and 3. The center point 33 between the four wheels of the leading carriage 30 and the center point 34 between the front wheels of the middle carriage 31 are connected by a rotatable connecting rod 37, and the center point 35 between the rear wheels of the middle carriage 31 and the tail carriage are connected. Whether the center point 36 of the four wheels 32 is connected by a rotatable connecting rod 38, the track measurement reference line 29 is provided on the intermediate carriage 31 in parallel with the axle, and the leading carriage 30 is towed by using a mobile vehicle. The head carriage itself is made to be a mobile vehicle to run in the A direction. At that time, the intermediate bogie 31 and the tail bogie 3
Intermediate trolley 3 by slightly applying a brake to 2
The axle 1 can travel while maintaining a right angle to the running track, the track measurement reference line 29 always maintains a right angle to the tracks 2 and 3, and the ultrasonic sensor is held on the track measurement reference line 29. It becomes possible to maintain the proper positional relationship between the ultrasonic sensor and the side surfaces of the tracks 2 and 3 even in the curved portion of the track by mounting via the.

[0020]

Since the present invention is constructed as described above, it has the following effects.

Non-contact type ultrasonic sensors are arranged in the side and upper spaces of the running track and in the front and rear wheel centers of the inspection cart, and the cart-like transmitting / receiving section, measuring section, display section,
Since the memory unit is installed, the relative dimensional relationship of the running track can be easily measured in a stable and non-contact state both in the straight section of the track and in the curved section, and it is of course possible to indicate the abnormal section on site. However, by statistically managing the stored measurement data, it is possible to grasp the track wear tendency, etc., so it is possible to greatly improve maintenance work by predicting the inspection time and replacement time,
Further, by disposing the ultrasonic sensor for measuring the side surface of the running track in the space above the running track by using a reflector, it is possible to measure even if there is a crossing plate or another track in the track.

Since the ultrasonic sensor for measuring the side portion of the running track and the ultrasonic sensor for measuring the position of the non-wearing portion on the side surface of the running track are provided, the distance between the running tracks and the wear amount on the side part of the running track can be measured respectively. More reliable maintenance management is possible.

Since the ultrasonic sensor for measuring the crown of the running track and the ultrasonic sensor for measuring the position of the rail base are provided, the wear amount of the crown of the running track can be measured, and more reliable maintenance management can be performed.

Since the ultrasonic sensor is attached to the reference line on the intermediate bogie of the three bogies connected to each other, the distance between the trajectories can be stably measured even if the trajectories are curved, and the sharp directivity is maintained. It is possible to improve the measurement accuracy by using the ultrasonic sensor having.

[Brief description of drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention.

FIG. 2 is a block diagram of the present invention.

FIG. 3 is a diagram showing a second embodiment of the present invention.

FIG. 4 is a diagram showing Embodiment 3 of the present invention.

FIG. 5 is a diagram showing a conventional measuring device.

[Explanation of symbols]

1 flat plate, 2 running track, 3 running track, 4 track surface running roller, 7 track side guide roller, 13
Roller for measuring track spacing, 15 springs, 17 ultrasonic sensor for measuring lateral position of lateral side of running track, 18 ultrasonic sensor for measuring lateral position of non-wearing part of running track, 19 ultrasonic sensor for measuring running track height, 20 running Ultrasonic sensor for measuring track base height, 21 holding mechanism, 22 truck,
23 transmitting / receiving unit, 24 measuring unit, 25 display unit, 26
Storage unit, 27 ultrasonic sensor for measuring left and right position of running track,
28 reflector, 29 orbit measurement reference line, 30 head bogie, 31 middle bogie, 32 rear bogie, 33 center point of four wheels of head bogie, 34 center point between front wheels of intermediate bogie, 35 between rear wheels of middle bogie Center point of 36, center point of four wheels of the rear bogie, 37 connecting rod, 38 connecting rod,
39 A line parallel to the axle at the center of the front and rear wheels, 40
The path of the ultrasonic beam.

Front Page Continuation (72) Inventor Toshihiko Mori 1-157 Miyashita, Sagamihara-shi, Kanagawa Saishi Electronic Chemical Co., Ltd. (72) Inventor Akihiro Nakanishi 1-157, Miyashita, Sagamihara-shi, Kanagawa Sohishi Denshi Inside Chemical Co., Ltd.

Claims (4)

[Claims] 1. An apparatus for measuring the relative position of a running track of a train, comprising: an inspection trolley running on the track; and a side space or an upper space of two left and right running tracks and before and after the inspection trolley. Ultrasonic sensors arranged substantially at the center of the wheel, a holding mechanism for holding the relative distance between the ultrasonic sensors, an electric signal is supplied to the ultrasonic sensors, and a reflector of the ultrasonic sensors. A transmission / reception unit that receives and amplifies the reception signal from, and measures the time from the transmission signal of the transmission / reception unit to the reception signal and converts it to the distance between the ultrasonic sensor and the traveling track to measure the distance between the traveling tracks. An ultrasonic traveling track dimension measuring device, comprising: a measuring unit for storing the measured data of the measuring unit; and a display unit for displaying the measured data. 2. A front and rear wheel of an inspection trolley comprising an ultrasonic sensor for measuring a lateral position of a running track head for measuring the amount of wear of a lateral surface of the running track head and an ultrasonic sensor for measuring a position of a track side non-wearing part. The ultrasonic traveling orbit dimension measuring device according to claim 1, wherein the ultrasonic traveling orbit dimension measuring device is provided substantially at the center. 3. An ultrasonic sensor for measuring the position of the top of the running track for measuring the amount of wear on the top surface of the running track, and an ultrasonic sensor for measuring the position of the rail base are provided substantially at the centers of the front and rear wheels of the inspection carriage. The ultrasonic type traveling track dimension measuring device according to claim 1, characterized in that. 4. An ultrasonic beam emitted from ultrasonic sensors located in the track side space and track upper space is kept parallel to the running track surface of the train and at right angles to the track longitudinal direction so that the ultrasonic beam always crosses the rail. In order to obtain a reference line that can be moved while having three wheels for track running at both ends and two axles that are parallel to each other, three bogies, the top center point of the leading bogie and the front wheel axle of the intermediate bogie. A rotatable connecting rod that connects the center upper part of the above, and a rotatable connecting rod that connects the middle point upper part of the rear axle of the intermediate bogie and the upper center point of the rear bogie,
The ultrasonic traveling track size measuring apparatus according to claim 1, further comprising: an ultrasonic sensor mounted on the intermediate carriage from which the reference line is obtained so that the ultrasonic sensor is parallel to the reference line.