JP2724245B2 - Train line wear detector - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial application field) The present invention relates to a train line wear detection device.

(Prior art) Since the contact surface of a train line gradually wears due to sliding of a pantograph attached to the train, it is necessary to periodically measure the amount of wear for maintenance management. The amount of abrasion has been detected using the abrasion detecting device of the above. There are a contact type and a non-contact type of the detection device for the amount of electric wire, and in particular, in recent years, a non-contact type wear detection device applying engineering technology has been developed due to the progress of optical technology and is put to practical use. It is becoming.

As a conventional example of such a non-contact type power line wear detection device, the one shown in FIGS. 9 and 10 is known.

The configuration of this conventional example will be described. A slide plate 2 attached to the upper surface of a pantograph of a train and sliding in contact with a train line 1 and a slide plate body 3 supporting the slide plate 2
Thus, the boat body 4 is constituted. As shown in FIG. 9, one or two sensor boxes 6 are inserted into the long groove 5 of the slide plate 2 because the train line 1 is displaced between l1 and l2 of the slide plate 2 as shown in FIG. Installed to detect width.

The sensor box 6 is attached to the inside of the slide plate body 3 from both sides via vibration isolating rubbers 7 so as to reduce high-frequency vibrations caused by sliding of the power line 1. Then, inside the sensor box 6, an LED array 8 configured by arranging LEDs in a line in the longitudinal direction, and light emitted from the LED array 8 is radiated through the transparent cover 9 to the sliding surface portion of the train line 1. A rod lens array 10 for taking in the reflected light again through the transparent cover 9;
And a CCD sensor 11 that receives light passing therethrough.

In the conventional trolley wire wear detecting device having such a configuration, if the rubbing plate 2 is always in contact with the trolley wire 1 at an arbitrary position during the displacement of the trolley wire 600 mm, the sliding surface of the trolley wire 1 The video signal corresponding to the width is decomposed into about 16 lines per 1 mm by the CCD sensor 11 and converted into a voltage signal, whereby the sliding surface width can be detected.

(Problems to be solved by the invention) However, as described above, the long groove 5 of the pantograph slide plate 2 is used.
In the conventional electric wire line wear detecting device in which the sensor box 6 is attached to the slide plate 3, the following problems are encountered.

First, in the lap part in the line switching part, that is, in the air section part, there are two lines at positions 150mm to 200mm left and right with the center of the track as a boundary, but these two lines also depend on how they are laid. However, there is a height difference of about 3 to 4 mm, and depending on the wear situation of the shoes attached to the pantographs of many trains and the pantograph pressing state when passing through the train, it also slides on the higher train line. , Wear has occurred. Therefore, it is necessary to detect the amount of wear not only on the lower line but also on the higher line. However, in the conventional method mounted on the sliding board, only the same level of the trolley line is targeted for the same hull, so even if the wear of the lower trolley line can be detected, the wear of the higher trolley line can be detected. There was a problem that could not be detected.

Also, with the conventional wire line wear detection device having a sensor box attached to a sliding plate body, it is difficult to reduce the weight of the entire hull, and unlike the tracking characteristics of pantographs used for train lines, the sliding plate Weight reduction of the body itself was required.

In addition, as shown in FIG. 10, the sensor box 6 is fixed at two places on the left and right sides of the ground plate 3, so that when the vibration isolating rubber 7 is tightened with bolts, the rubber plate 3 is compressed and the ground plate 3 is formed into an inverted C shape. Turn to
As a result, the slide plate 2 is inclined in a C-shape and the focal point a shifts, and there is also a problem that the detection accuracy of the sliding surface width of the train line 1 is deteriorated.

The present invention has been made in view of such a conventional problem, and it is possible to detect the amount of wear of a higher train line in an air section portion, and to maintain high detection accuracy of a sliding surface width of the train line. It is an object of the present invention to provide a train line wear detection device that can be made lightweight.

[Structure of the Invention] (Means for Solving the Problems) The trolley wire wear detection device of the present invention has a ground plate attached to the upper surface of a pantograph, and accommodates a plurality of sensor supports inside the ground plate. The bottom of each of the sensor supports is elastically supported by a push-up spring provided at the bottom of the ground plate, and both side portions of each of the sensor supports are horizontally supported by springs provided on both inner sides of the ground plate. An elastic plate is provided on each of the sensor supports, and a sensor plate is provided on the upper surface of each of the sensor supports. The sensor device is supported horizontally, and accommodates an optical device for optically detecting the sliding surface width of the train line inside each of the sensor boxes.

(Action) In the train wire wear detecting device of the present invention, the protrusion height of the slide plate on the upper surface of each of the plurality of sensor supports housed in the slide plate body is different from each other due to the action of each push-up spring. Therefore, even when a plurality of lines are present at different heights, such as in the air section of the line, one of the slider plates supporting the sensor can be connected to the sliding line of the lower line. Surface, and the other supporting plate of the sensor can be brought into contact with the sliding surface of the higher train line. The width of the sliding surface of the train line can be individually detected.

In addition, a sensor plate is provided on the upper surface of each sensor support, and the sensor box is housed inside each sensor support via anti-vibration rubber. Even if you try to tighten
The upper surface of the sensor support simply moves horizontally in and out and does not deform into a convex shape. Therefore, the sliding plate provided on the upper surface of the sensor support is bent to slide the train line from the focal position of the optical device. The sliding surface width can be detected with high accuracy without shifting the surface.

Further, since the ground plate does not have to be heavy, the overall weight can be reduced.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of the present invention, and FIG. 2 is a view taken along the line II-II in FIG.

As shown in FIG. 1, the tread line wear detecting device of this embodiment has two sensor boxes 1
4 and 14 are attached, and one sensor box 14 is attached to the center of the second-stage pantograph hull 13 so that one optical sensor can detect 216 mm. It is possible to detect the sliding surface width and the deviation amount up to the line displacement amount of 600 mm.

The sensor box 14 for detecting the sliding surface width and the amount of deviation of the electric line 1
The sensor support 15 is supported via a vibration isolating rubber 16, and a top plate 17 in contact with the trolley wire 1 is formed in a boat shape on the upper surface of the sensor support 15. Both sides of the sensor support 15 are fixed by holding plates 18.

A bottom plate of the sensor support 15 is pushed up by a slidable plate body 19 forming a support of the boat body 13 and a push-up spring 20 mounted on the bottom of the hull body 13, and a slide plate 17 mounted on the upper surface of the sensor support 15 is trained. The wire 1 is brought into elastic contact with the wire 1. A sliding plate 21 is also attached to the upper surface of the sliding plate 19.

Pressing springs 22 and 23 are provided on the front, rear, left and right to hold the sensor support 15 against the rubbing plate 19.
Through this, the sensor box 14 is prevented from swinging in the horizontal direction. That is, the pressing spring 22 mainly prevents the contact of the sensor support 15 with the slide plate 19 generated during acceleration and deceleration during traveling, and the pressing spring 23 controls the right and left generated when the train line 1 moves left and right during traveling. This is to prevent vibrations.

Referring to FIG. 2, a more detailed configuration of the trolley wire wear detecting device will be described. The push-up spring 20 is configured such that a screw 25 is fixed to a washer 24 by welding or the like, and the push-up spring 20 is provided at the first upper and lower stages of the push-up spring 20. The upper and lower screws 25 are fixed by tightening nuts 26 by passing the upper and lower screws 25 through the bottom of the sensor support 15 and the bottom of the rubbing plate 19, respectively.

The push-up spring 20 allows the sliding plate 17 on the upper surface of the sensor support 15 to protrude above the sliding plate 21 on the upper surface of the sliding plate body 19.
When the push-up spring 20 pushes up the bottom of the sensor support 15 from the side surface of the grounding plate body 19 and pushes up the bottom of the sensor support 15, it is blocked by the stopper 27 and can move further upward. First, the gap of the height of the contact plate 17 with respect to the contact plate 21 is set to be at most g or less.

Further, the holding plate 18 is a metal fitting for fixing the left and right sensor supports 15 and is for maintaining the parallelism of the left and right sliding plates 17.
Adjustable with 28 in between.

The optical device housed in the front of the sensor 14 is the same as that of the conventional example, and the LED array 8 and the light emitted from the LED array 8 hit the sliding surface of the train line 1 and are reflected. Light is incident on the rod lens array 10 via the transparent cover 9 and is guided to the CCD sensor 11 from here to detect the deviation amount and the sliding surface width of the electric wire 1.

Next, the operation of the trolley line wear detecting device having the above configuration will be described.

When a train travels on a track, this train wire wear detection device attached to the top of the pantograph has its sliding plate 1
The portions 7 and 21 contact and slide on the sliding surface of the trolley wire 1. In this contact, in particular, the contact plate 17 can always be stably contacted and slid by the push-up force of the push-up spring 20 even if there is a vertical vibration.

Then, the light emitted from the LED array 8 of the optical device is reflected on the sliding surface of the train line 1 and enters the rod lens array 10 through the transparent cover 9, and is guided by the CCD sensor 11, and the displacement amount of the train line 1 And the width of the sliding surface is detected.

The front and rear, left and right vibrations of the sensor box 14 are suppressed by springs 22, 23.
Will be absorbed.

Further, in the case where the train enters the air section and comes into contact with two lines having different heights, one of the three line wear detectors is attached to the lower line. Even if the plate 17 is in contact, the higher one of the contact strips 17 of the trolley wire wear detection device at another position independent of the trolley wire wear detection device if the height difference is within the range of the gap g. It is possible to make contact with the trolley line 1 and simultaneously detect the deviation amount and the sliding surface width of any of the trolley lines.

In addition, as shown in FIG.
In the case of contact at the position of the end of 19, the slider 17 is inclined.
Can be restricted.

FIGS. 4 and 5 show another embodiment of the present invention, in which a fixing bracket 29 as shown in FIG. An arm 31 is fixed to the link 30, and a pin 32 is fixed to the center of the holding plate 18 so as to protrude therethrough, and is passed through a mounting hole 33 at the tip of the arm 31.

By doing so, even if the train line 1 comes into contact with the end of the sliding plate 17 as shown in FIG. 6, the sliding plate 17 moves up and down in parallel by the link mechanism of the link 30 and the arm 31. Good contact with the line 1 can be maintained, and the detection accuracy of the sliding surface width can be further improved.

FIGS. 7 (a) to 7 (c) show still another embodiment of the present invention, in which shafts 34a and 34b are attached to a slide plate 19, and coil springs 35a to 35c are respectively passed through the shafts 34a and 34b. One end is fixed, and arms 36a to 36c are attached to the other ends of the coil springs 35a to 35c.
7 is pushing up. The arms 36a to 36c are provided with stoppers 37a to 37c so that the slide plate 17 does not rise further.

The holding spring 38 is inserted to suppress vibration at the ends of the arms 36a to 36c, and the collar 39 is for preventing the arms 36a to 36c from coming into contact with the sensor support 15 on which the slider 17 on which the arm 36a to 36c is not fixed is mounted. It is. Reference numeral 40 denotes a mounting screw for fixing the arms 36a to 36c to the sensor support 15.

In the case of such a configuration, as shown in FIG. 8 (a), when the sliding plate 17 and the sliding plate 21 are at the same height, even if the train line 1 contacts at any position on the left or right of the sliding plate 17, The slide plate 17 can always be kept horizontal. In addition, the slide plate 21 is a slide plate.
If the height is higher than 17, as shown in FIG. 8 (b), the contact strip 17 is slightly inclined according to the position of the train line 1, but it is also slight, which is negligible in practical use. It will be.

[Effects of the Invention] As described above, according to the present invention, a plurality of sensor supports are mounted on the same ground plate of a pantograph so as to be elastically supported by a push-up spring, and the slide plate mounted on the upper surface of the sensor support Can be protruded from the sliding plate on the top surface of the sliding plate body, and the sensor box is attached to this sensor support, so even if it comes in contact with multiple train lines with different heights, the sensor Even if the plate is brought into contact with the lower trolley line, the other sensor-supporting contact plate can be brought into contact with the higher trolley line. , The wear of the sliding surface can be detected.

In addition, the sensor box is attached via a vibration isolating rubber to the sensor support that is supported by the push-up spring on the slide plate, and since the slide plate is provided on the upper surface of the sensor support side, the sensor is directly attached to the conventional slide plate. Unlike the case where the box is mounted via the vibration-proof rubber, the rubbing plate and the sensor support are not deformed, and the focus of the optical device is not deviated, so that the accuracy of detecting the abrasion of the line can be improved.

Further, unlike the conventional boat body, the ground plate body does not require strength, and the weight can be reduced.

[Brief description of the drawings]

1 (a) and 1 (b) are a plan view and a front view of one embodiment of the present invention, FIG. 2 is a view taken along the line II-II in FIG. 1, and FIG. 3 explains the operation of the above embodiment. FIG. 4 is a view in the direction of the arrow of another embodiment of the present invention, FIG. 5 is a mechanism diagram showing a link mechanism of the above embodiment, FIG. 6 is a schematic diagram for explaining the operation of the above embodiment, FIG. 7 is a sectional view of still another embodiment of the present invention, FIGS. 8 (a) and (b) are schematic views for explaining the operation of the above embodiment, FIG. 9 is a perspective view of a conventional example, and FIG. Figure 9
FIG. 2 is a sectional view taken along line AA ′ in FIG. 1 ... Train line, 8 ... LED array 9 ... Transparent cover 10 ... Rod lens array 11 ... CCD sensor, 13 ... Ship 14 ... Sensor box, 15 ... Sensor support 16 ... Vibration isolation rubber , 17 ... Strip plate 18 ... Press plate, 19 ... Strip plate 20 ... Push-up spring, 21 ... Strip plate 22 ... Press spring, 23 ... Press spring

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hideaki Aiba 1-1-1, Shibaura, Minato-ku, Tokyo Inside the Toshiba head office

Claims (1)

(57) [Claims] 1. A ground plate is mounted on an upper surface of a pantograph, a plurality of sensor supports are housed inside the ground plate, and a bottom of each of the sensor supports is provided by a push-up spring provided at a bottom of the ground plate. And elastically supporting both sides of each of the sensor supports by horizontal restraining springs provided on both inner sides of the sliding plate body. A sliding plate is provided on an upper surface of each of the sensor supports. A sensor box is accommodated inside each support, and each sensor box is horizontally supported via anti-vibration rubber on both inner sides of each of the sensor supports, and a sliding surface width of a train line is provided inside each of the sensor boxes. A tread line wear detection device containing an optical device for optical detection.