JPH07306021A - Trolley line wear measuring instrument - Google Patents

Abstract

PURPOSE:To provide a simplified wear measuring instrument which can be mounted or the maintenance operation vehicle of the Shinkansen and has a mechanism for accurately marking the position of each measurement point. CONSTITUTION:The instrument consists of a measurement part 6 which is fitted to an elevation mechanism 53 for the pantograph for grounding installed at a maintenance operation vehicle and consists of a measurement optical system 62 and a guide part 63 and a signal processing part 7, a position mark creation part 8, and a pen recorder 9 which are installed at proper locations on a roof 51.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trolley wire wear measuring device, and more particularly to a simple measuring device to be mounted on a Shinkansen maintenance work vehicle.

[0002]

2. Description of the Related Art FIGS. 5 (a) and 5 (b) schematically show the construction of a trolley wire 1. In Fig. 5 (a), messenger wire 1b is stretched over each supporting pole 1a that is planted at appropriate intervals.
On the other hand, the trolley wire 1 is stretched horizontally by the hanger 1c at a height H _{R above} the rail surface. However, height H _R
May vary depending on the line section, and may also fluctuate due to wind power. In the train 2, the pantograph 2a makes sliding contact with the lower surface (referred to as a sliding surface) of the trolley wire 1 and receives electric power to run. By this sliding contact, the sliding plate of the pantograph 2a,
The sliding surface of the trolley wire 1 gradually wears. The trolley wire 1 is (b)
As shown in FIG. 3, each pole 1a is erected in the lateral direction by a detent wire 1d. Next, FIG. 5 (c) shows a cross section of the trolley wire 1, which is shown in a circle with a diameter of φ at the illustrated position.
Two grooves are provided for the hanger 1c, and 1e is a sliding surface. If the sliding surface 1e is worn by the running of the train 2,
The width W gradually increases and the remaining diameter (remaining diameter) φ ′ in the vertical direction decreases. When this reaches the limit, the strength becomes weak, so the sliding surface width W or the residual diameter φ ′ is measured to control the wear state, and the trolley wire 1 that has reached the limit is replaced.

In order to improve the efficiency of wear measurement of the trolley wire 1, various types of measuring devices have been developed, which are mounted on an electric inspection vehicle (or test vehicle) to measure the amount of wear during traveling. There is. FIG. 6 shows a laser-type wear measuring optical system 3 which is mainly used in Shinkansen test cars. The laser beam L _T from the laser oscillator 31 passes through the hole mirror 32 and is angularly deflected by the rotating mirror 33, so that two plane mirrors are included.
It is reflected by 34a and 34b, then made parallel by the parabolic mirror 35 and projected vertically upward, and scans the deviation range D. The reflected light L _R of the sliding surface 1e returns along the same path as the outward path,
The light is reflected by the hole mirror 32 and enters the light receiver 36. The output signal of the light receiver 36 is processed by a signal processing circuit (not shown) to measure the sliding surface width W, and is converted into a residual diameter φ ′ by calculation. To the obtained data of the remaining diameter, a pole signal from a pole detector separately provided in the test vehicle is added as a position mark and recorded on the chart paper of the pen recorder. Since the measuring optical system 3 is of a non-contact type with respect to the trolley wire 1, measurement can be performed even when the trolley wire 1 is under pressure, and the sky of the sky can be obtained by making the intensity of the laser beam L _T sufficiently large. The feature is that deterioration of S / N ratio due to external light does not pose a problem and wear measurement can be performed well even in the daytime. However, the scale is quite large.

Next, FIG. 7 shows a basic structure of a wear measuring optical system 4 including a linear light source and a plurality of light receivers. The measurement optical system 4 has a sodium lamp light source 41 as a line light source, and its illumination light L _T is applied to the deviation range D of the trolley wire 1.
On the other hand, the deviation range D is divided into a plurality of areas, and the imaging lens 421 and the CCD linear sensor 422 are associated with each area.
A plurality of light receivers 42 are arranged and the reflected light L _R of the sliding surface 1e is received by the imaging lens 421 of one of the light receivers 42, and the image of the sliding surface 1e is displayed on the element of the CCD linear sensor 422. An image is formed, and the sliding surface width W is measured depending on the position of the element. Since the S / N ratio of the optical system 4 is lowered by the external light of the sky, it is limited to the measurement at night or in the tunnel.
Since it is smaller and lighter than the optical system 3 described above, it has been put to practical use in various fields, and it is being mounted on a commercial vehicle even in the Shinkansen and tested. However, in this optical system 4, the sliding surface 1e
In order to properly form the image of (1), it is a necessary condition to keep each light receiver 42 at a constant distance with respect to the trolley wire 1.

Now, in the Shinkansen, all sections are divided into a plurality of sections, maintenance work vehicles are provided for each section, the state of each portion of the erection mechanism of the trolley wire 1 is inspected at appropriate intervals, and necessary repairs are made. Maintenance work is being done. On the other hand, the test vehicle runs at a high speed of about 200 kM / hour and measures the wear of the entire section in a short time. Therefore, details of the wear are not always accurately measured, and errors may occur. Therefore,
A wear inspector is put on the maintenance work vehicle, and the wear is measured again manually by using a micrometer.

FIG. 8 shows the appearance of the maintenance work vehicle 5. The roof 51 has a ground plate 52 grounded to the vehicle body by a connecting line E,
An elevating mechanism 53 having a hydraulic cylinder and a spring for elevating and lowering the ground plate 52 is provided, and a pantograph 54 for grounding is attached to the ground plate 52. The maintenance work is performed by stopping the pressurization to the trolley wire 1 at a predetermined time of night, the ground plate 52 is raised to a certain height by the hydraulic cylinder, and the pantograph 54 is moved to the trolley wire 1 by the biasing force of the spring. Contact it and discharge the electric charge stored in it to the ground for safety. Then, the maintenance work vehicle 5 is driven at a speed of 25 km / h or less, stopped at an appropriate point, and the remaining diameter is measured.

[0007]

The manual abrasion measurement in the maintenance work vehicle 5 requires a large number of inspectors and a considerable amount of measurement time. In order to save the labor,
There is a demand for a simple wear measuring device that can be mounted on a maintenance work vehicle. In this case, since the wear measurement is performed in the non-pressurized state of the trolley wire 1, the measurement optical system 4 described in FIG. 7 can be used as a contact method. In this case, it is efficient to use the elevating mechanism 53 to contact the trolley wire 1. Further, in measuring the wear of the maintenance work vehicle 5, since the measurement points between the predetermined supporting poles 1a are measured, it is necessary to add accurate position marks to the measurement data at each measurement point. However, even if a utility pole detector is provided, an accurate position mark between utility poles cannot be obtained. Therefore, it is necessary to provide a simple mechanism that can obtain a position mark shorter than the utility pole mark. It is an object of the present invention to provide a simple wear measuring device which is mounted on a maintenance work vehicle, uses a lifting mechanism, and has a mechanism capable of obtaining an accurate position mark for each measurement point.

[0008]

SUMMARY OF THE INVENTION The present invention is a trolley wire wear measuring device, which is provided on a maintenance vehicle for a Shinkansen,
The grounding pantograph includes a measuring unit mounted on a lifting mechanism. The measurement unit is composed of a base plate fixed to the ground plate of the elevating mechanism, a support plate fixed to the base plate and having a horizontal plane and an inclined surface, a measurement optical system and a guide unit respectively disposed on the support plate. It The measurement optical systems are arranged on a horizontal plane and an inclined surface, respectively, and correspond to a sodium lamp light source that illuminates the deflection range of the trolley wire with illumination light, and a plurality of areas that divide the deflection range equally. A light receiving system including a plurality of light receivers having a linear sensor. In addition, the guide portion is provided in front of and behind the sodium lamp light source, and has two guide rollers that rotate in contact with the trolley wire that is displaced within the displacement range. A signal processing unit that calculates the sliding surface width of the trolley wire from the received light signal of each light receiver and converts it to the remaining diameter, and a distance that generates a distance pulse at a fixed distance traveled by the maintenance vehicle, which is connected to the guide roller. A position mark creation unit that has a pulse generator and creates a position mark from a distance pulse, and a signal processing unit and a position mark creation unit that accompany the traveling of a maintenance work vehicle, and the remaining diameter data that are sequentially output, respectively. A wear measuring device is configured by providing a recording unit that records the position marks in parallel. The two guide rollers are made of metal and are connected to the ground plate by a connecting wire, and are connected to each other by a belt.

[0009]

In the above trolley wire wear measuring apparatus, the grounding pantograph of the maintenance work vehicle is removed from the elevating mechanism and the measuring section is attached instead. The base plate of the measuring unit is fixed to the ground plate of the lifting mechanism, and the support plate is fixed to the base plate. The sodium lamp light source arranged on the horizontal plane of the support plate illuminates the deflection range of the trolley wire with illumination light, and the light receiving system arranged on the inclined surface has one of the plurality of light receivers. The light reflected by the sliding surface of the trolley wire that deviates within the deviation range is received and imaged on the light receiving element of the CCD linear sensor. In wear measurement, when the elevating mechanism raises the measuring part together with the ground plate to an appropriate height, the two guide rollers come into contact with the trolley wire by the spring of the elevating mechanism, and the distance between the trolley wire and each light receiver is a constant value. Held in. As the maintenance work vehicle travels, each guide roller that is in contact with the trolley wire rotates, and this rotation is detected by the distance pulse generator of the position mark creating unit, and position marks are sequentially created. On the other hand, the light reception signal sequentially output from each light receiver is processed by the signal processing unit, the sliding surface width of the trolley wire is calculated, and converted into the remaining diameter. As described above, the data of the remaining diameter and the position mark, which are sequentially output, are recorded side by side in the recording section, whereby the data of each remaining diameter and its position can be accurately grasped. In the above description, since the two guide rollers made of metal are connected to the ground plate, the trolley wire in contact therewith discharges the accumulated charge to the ground, and plays the same role as the ground pantograph. Further, since both guide rollers are connected to each other by a belt, even if either of them is separated from the trolley wire, both of them always rotate at the same speed, and the distance pulse generator does not cause a detection error, and thus the correct distance is maintained. A position mark can be obtained.

[0010]

1 to 4 show an embodiment of the trolley wire wear measuring apparatus of the present invention, FIG. 1 is an external view showing the structure of a measuring section 6, FIG. 2 is a partial view of FIG. 1, and FIG. A layout of the measuring unit 6 mounted on the lifting mechanism 53 of the maintenance work vehicle 5, the signal processing unit 7, the position mark creating unit 8 and the pen recorder 9. FIG. 4 is a schematic view of the signal processing unit 7 and the position mark creating unit 8. It is a block diagram.

In FIG. 1, the measuring unit 6 fixes a support plate 61 having a horizontal surface 61a and an inclined surface 61b to a base board 60. Sodium lamp light source arranged on horizontal surface 61a
The measuring optical system 62 is composed of 62a and a light receiving system 62b arranged on the inclined surface 61b, and is arranged in front of and behind the light source 62a.
A guide portion 63 having individual guide rollers 63a and 63b is provided. The light source 62a is arranged in a direction perpendicular to the trolley wire 1 and illuminates the deviation range D. The light receiving system 62b is composed of a plurality of (five in this case) light receivers R _{1 to} R ₅ , and each light receiver R is
As shown in FIG. 2 (a), it has an image forming lens 621 and a CCD linear sensor 622, and each receiving range of each region D ₁ to D ₅ was divided into five equal parts the excursion range D of the contact wire 1. The two guide rollers 63a and 63b of the guide portion 63 are axially supported by two bearing plates 63c and 63d fixed to both ends of the horizontal surface 61a, and are connected to each other by a belt 65e as shown in FIG. 2 (b). Further, brushes 63f and 63g are provided so as to be in contact with both of them, and are connected to the base board 60 by a connecting line E. Also, each bearing plate
Guide plates 63h and 63i for guiding the trolley wire 1 are attached to 63c and 63d.
Are attached respectively. Next, a distance pulse generator 81 is provided, which is connected to the guide roller 63a or 63b and generates a distance pulse for each constant traveling distance of the maintenance work vehicle 5 by its rotation.

In FIG. 3, the grounding pantograph 53 (see FIG. 8) already installed on the roof 51 of the maintenance work vehicle 5 is removed from the grounding plate 52a, and instead, the base board 60 is fixed and the measuring unit 6 is mounted. To do. Further, the signal processing unit 7, the position mark creating unit 8 and the pen recorder 9 are provided at appropriate positions on the roof 51.
Arrange the housing 10 containing

In FIG. 4, the signal processing unit 7 is a control circuit.
71, a sliding surface width calculation circuit 72, an A / D converter 73, a remaining diameter conversion circuit 74, and a D / A converter 75. The position mark creating unit 8 includes the distance pulse generator 81 described above, a pulse counter 82, and a position mark creating circuit 83.

The operation of each part in the trolley wire wear measurement will be described below with reference to FIGS. When the elevating mechanism 53 is driven to raise the measuring unit 6 together with the ground plate 52, both guide rollers 63a and 63b come into contact with the trolley wire 1 and discharge the electric charges to the ground. Then, the illumination light L _{T is} emitted from the sodium lamp light source 62a.
Is irradiated to the displacement range D. In this case, trolley wire 1
7 and the contact between the two guide rollers, the light receivers R _{1 to} R ₅ are always held at a constant distance from the trolley wire 1.
The requirements described in Section 4 are met. When the maintenance work vehicle 5 is driven and travels at a speed of, for example, about 25 km / hour, the trolley wire 1 is deviated to the left and right, and the reflected light L _R of the sliding surface 1e is received by one of the light receivers, and the CCD linear sensor 622 thereof is received. Is imaged. The CCD linear sensor 622 is scanned by the scanning signal from the control circuit 71 and a light receiving signal is output. The received light signal is input to the sliding surface width calculation circuit 72 to calculate the sliding surface width W,
The data is digitized by the A / D converter 73, converted into a residual diameter φ ′ by the residual diameter conversion circuit 74, further analogized by the D / A converter 75, and sequentially output to the pen recorder 9. It On the other hand, both guide rollers 63a and 63b which are in contact with the trolley wire 1 are rotated by the traveling of the maintenance work vehicle 5, and the distance pulse generator 81 connected thereto is
Generates a distance pulse at every constant mileage. In this case, since both guide rollers 63a and 63b are connected by the belt 63e, even if one guide roller 63b separates from the trolley wire 1, both guide rollers 63b rotate at the same speed and always generate an accurate distance pulse. . The distance pulse is counted by the pulse counter 82, the position mark is sequentially output from the position mark creating circuit 83 to the pen recorder 9, and is written in parallel on the chart paper together with the data of the remaining diameter φ ′.

[0015]

As described above, the trolley wire abrasion apparatus according to the present invention effectively utilizes the grounding plate and its elevating mechanism already installed in the maintenance work vehicle, and is simply configured by mounting the measuring unit on the grounding plate. In addition, each light receiver of the measurement optical system is always held at a constant distance with respect to the trolley wire, the sliding surface width is correctly measured, and further from the distance pulse of the distance pulse generator connected to the guide roller, It is possible to create a position mark and record it side by side on the data of the remaining diameter, and to accurately grasp the measurement position of the wear amount, where it contributes to labor saving of wear measurement that required many inspectors, There is a big one.

[Brief description of drawings]

FIG. 1 is an external view showing a configuration of a measuring unit 6 of a trolley wire wear measuring device according to an embodiment of the present invention.

FIG. 2 is a partial view of FIG.

FIG. 3 is a housing for accommodating a measuring unit 6 mounted on an elevating mechanism 53 of a maintenance work vehicle 5, a signal processing unit 7, a position mark creating unit 8 and a pen recorder 9 according to an embodiment of the present invention. 3 is a layout view of the body 10. FIG.

FIG. 4 is a schematic block configuration diagram of a signal processing unit 7 and a position mark creating unit 8 in one embodiment of the present invention.

FIG. 5 is a schematic view of a trolley wire 1 installation structure and a cross-sectional view of the trolley wire 1.

FIG. 6 is a configuration diagram of a laser-type wear measuring optical system 3.

FIG. 7 is a basic configuration diagram of a wear measuring optical system 4 including a linear light source and a plurality of light receivers.

FIG. 8 is an external view of the maintenance work vehicle 5.

[Explanation of symbols]

1 ... trolley wire, 2 ... train, 3 ... laser type wear measuring optical system, 4 ... wear measuring optical system composed of a line light source and a plurality of light receivers, 5 ... maintenance work vehicle, 51 ... roof, 52 ... contact Base plate, 53 ... Elevating mechanism, 54 ... Grounding pantograph, 6 ... Measuring part of this invention, 60 ... Base board,
61 ... Support plate, 61a ... Horizontal plane, 61b ... Inclined surface, 62 ... Measurement optical system, 62a ... Sodium lamp line light source, 62b ... Light receiving system, 63 ... Guide part, 63a, 63b ... Guide roller, 63c, 63d
… Bearing plate, 63e… Belt, 63f, 63g… Brush, 63h, 63
i ... Guide plate 621 ... Imaging lens, 622 ... CCD linear sensor, 7 ... Signal processing unit, 71 ... Control circuit, 72 ... Sliding surface width calculation circuit, 73 ... A
/ D converter, 74 ... Remaining diameter conversion circuit, 75 ... D / A converter, 8 ... Position mark creating section, 81 ... Distance pulse generator, 82
... pulse counter, 83 ... position mark creating circuit, 9 ... pen recorder, 10 ... housing, D ... trolley wire displacement range, H _R
... height of trolley wire, φ ... diameter of trolley wire, φ '... remaining diameter of trolley wire, L _T ... illumination light, L _R ... reflected light, R _{1 to} R
₅ ... Receiver, E ... Connection line.

Front Page Continuation (72) Inventor Shojiro Takei 2-6-2 Otemachi, Chiyoda-ku, Tokyo Inside Ritsu Denshi Engineering Co., Ltd. (72) Inventor Tadashi Shibuya 2-6-2 Otemachi, Chiyoda-ku, Tokyo Inside Ritsuden Engineering Co., Ltd.

Claims (2)

[Claims] 1. A measurement unit mounted on a lifting mechanism for a grounding pantograph provided on a Shinkansen maintenance work vehicle, the measuring unit including a base plate fixed to a ground plate of the lifting mechanism, The support plate is fixed to the base plate and has a horizontal surface and an inclined surface, and a measurement optical system and a guide portion respectively disposed on the support plate, and the measurement optical system is provided on the horizontal surface and the inclined surface, respectively. A sodium lamp light source that is provided and emits illumination light to the deviation range of the trolley wire, and a plurality of light receivers that respectively correspond to a plurality of areas that equally divide the deviation range and that have CCD linear sensors A light receiving system, the guide portion is provided in front of and behind the sodium lamp light source, and has two guide rollers that rotate in contact with a trolley wire that is displaced within the deflection range. Receiver A signal processing unit that calculates the sliding surface width of the trolley wire from an optical signal and converts it into a residual diameter, and a distance pulse that is coupled to the guide roller and that generates a distance pulse for each constant traveling distance of the maintenance work vehicle. A position mark creating unit that has a generator and creates a position mark from the distance pulse, and the signal processing unit and the position mark creating unit that sequentially output the remaining diameter of the signal when the maintenance work vehicle travels. A trolley wire wear measuring device, characterized in that it is provided with a recording unit for recording data and position marks side by side. 2. The trolley wire wear measuring device according to claim 1, wherein the two guide rollers are made of metal and are connected to the ground plate by a connecting wire and are connected to each other by a belt.