JPH099405A - Device for measuring fraying of slider - Google Patents

Abstract

PURPOSE: To facilitate the work and remove the dispersion of the measurement results due to manual work by fixing a sensor for measuring the fraying, which measures the distance to a wear plate fixed on the top of a stopped electric car by a pole or the like. CONSTITUTION: Fixed frames 1 and reference boards 2 arranged severally in parallel are constituted at right angles roughly in parallel crosses, and thereon a guide frame 3 orthogonal to the reference board 2 is installed. The guide frame 3 is equipped with a slider 4, and it is so constituted as to slide in the longitudinal direction of the reference board 1. The distance to a wear plate is measured with a wear sensor 5 attached to the slider 4, and the displacement from the reference plate 2, that is, the fraying is computed. Hereby, it can be done to forecast the time of replacement of the wear plate by measuring the fraying of the wear plate automatically, without climbing up the roof of an electric car, and performing the monitoring of the fraying periodically.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for measuring the amount of wear of a pantograph contact plate. In particular, the present invention relates to a device for measuring the amount of wear of a contact strip when a train is stopped.

[0002]

2. Description of the Related Art In a pantograph of a train or the like, a contact plate is provided at a contact portion with a trolley wire. Since this contact plate wears as the train runs, it is necessary to measure the amount of wear as appropriate and replace it if a certain amount of wear is recognized. Conventionally, this kind of wear amount measurement has been performed manually by a worker using a micrometer or the like while climbing onto the roof of a train. However, with such a method, the worker needs to climb on the train every time measurement is performed.
It's very complicated. Further, in manual measurement, variations in measurement results among workers are also a problem.

[0003]

The present invention has been made to solve the above problems, and provides an apparatus for automatically measuring the amount of wear of a contact plate. That is, the device of the present invention is characterized in that it is equipped with a wear amount measuring sensor that is fixed to the upper part of the stopped train by a pillar or the like and measures the distance to the sliding plate.

Specifically, a pair of reference plates that are in contact with each other at right angles to the slide plate, a guide frame provided at right angles to the reference plate (parallel to the slide plate), and a slider that slides along the guide frame. A wear measuring sensor is provided on the slider. When measuring, the sensor is aligned directly above the contact plate. Since the vertical distance between the sensor and the reference plate is set to a fixed interval, the thickness displacement amount of the contact plate can be calculated by contacting the reference plate with the contact plate and measuring the distance from the sensor to the contact plate. it can. A laser displacement meter or the like is suitable for the wear amount measuring sensor. Then, the wear amount measuring sensor is slid along the guide frame and the distribution of the wear amount in the longitudinal direction of the sliding plate is measured. A motor etc. are mentioned as a drive source of a slider.

Further, a slider detection sensor is provided on the guide frame or the reference plate, the position of the slider is grasped by this sensor, and the drive source of the slider is controlled to prevent overrun of the slider. This is because it is sufficient to measure the amount of wear if the slider can slide over the entire length of the slide plate. A proximity switch or the like is suitable for this sensor.

Further, by making the guide frame slidable in the longitudinal direction of the reference plate, the wear amount measuring sensor can be easily positioned right above the sliding plate. A motor or the like is suitable for the drive source that slides the guide frame. Then, a sliding plate detection sensor that slides in the longitudinal direction of the reference plate together with the guide frame is provided. At this time, the contact plate detection sensor is positioned on a straight line that is orthogonal to the reference plate and passes through the wear amount measurement sensor. The sliding plate detection sensor detects that the wear amount measuring sensor is located on the sliding plate, and controls the drive source of the guide frame to stop the guide frame at that position. A photoelectric switch or the like is used as the contact detection sensor.

[0007]

EXAMPLES The present invention will be specifically described below based on examples. FIG. 1 is a plan view of the device of the present invention, and FIG. 2 is A- of FIG.
A sectional view, FIG. 3 is a BB sectional view of FIG. 1, and FIG. 4 is C of FIG.
FIG.

(Outline) In the device of the present invention, the fixed frame 1 and the reference plate 2 which are respectively arranged in parallel are made substantially orthogonal to each other.
It is configured as a mold and has a guide frame 3 orthogonal to the reference plate 1 thereon. The guide frame 3 includes a slider 4 and is configured to slide in the longitudinal direction of the reference plate 1. Then, the wear amount measuring sensor 5 attached to the slider 4 measures the distance to the contact plate A (see FIG. 2). The measurement is performed in the garage of the train or the like by stopping the train just below the device. Generally, a pair of collector boats are provided in parallel on the upper part of the pantograph, and a pair of contact plates are arranged in parallel with each collector boat. That is, a total of four contact plates are used. The middle part of the contact plate is the main contact plate, and both ends are the auxiliary contact plates. This device measures the amount of wear of the main contact plate that contacts the trolley wire.

(Fixed Frame) The fixed frame 1 is for supporting the apparatus. Although not shown, columns higher than the train are provided on both sides of the train track, and both ends of the fixed frame 1 are supported by the columns. This holds the measuring device on top of the train.

(Reference plate) The reference plate 2 is an elongated plate-like member which is in direct contact with the sliding plate of the pantograph, and the wear amount measuring sensor 5
It serves as a reference for the displacement of the distance data detected by. Both ends of the reference plate 2 are folded up at a slight angle so that the pantograph is easily introduced to the lower surface of the reference plate 2 when the train enters the lower part of the device. They are arranged parallel to each other with a width larger than the length of the main sliding plate, and are contacted orthogonally on the auxiliary sliding plate during measurement.

An insulator 6 (see FIG. 3) is provided on the upper surface of the reference plate 2.
Is fixed, and the rail frame 7 is fixed thereon. The insulator 6 is provided on the reference plate 2 in order to enable measurement even during power transmission. A rail 8 for sliding the guide frame 3 is fixed on the rail frame 7.

(Guide frame) The guide frame 3 is
This is for adjusting the position of the wear amount measuring sensor 5 provided on the slider 4. It has a mechanism for sliding the guide frame 3 itself in the longitudinal direction of the reference plate 2 and a mechanism for sliding the slider 4 in a direction orthogonal to the reference plate 2. That is, the sensor 5 can be moved in the direction orthogonal to the sliding plate A and in the longitudinal direction of the sliding plate A. First,
The slide mechanism of the guide frame 3 will be described. An LM guide 9 slidably fitted to the rail 8 is integrated with the lower surface of the guide frame 3. A female screw portion 11 that is screwed into the ball screw 10 is fixed to the lower surface of one end of the guide rail. The ball screw 10 is axially supported by a support piece 12 extending from the reference plate 2 and is rotated by a motor 13 to slide the guide frame 3 in the longitudinal direction of the reference plate 2.

(Surface plate detection sensor) Further, one LM
At both ends of the guide 9, a sliding plate detecting sensor 14 is provided. At the time of measurement, a train is introduced to the lower part of the device and stopped, but it is not easy to position the sliding plate A directly below the wear amount measuring sensor 5 due to movement of the train. Therefore, for the alignment by moving the train, the sliding plate A should be located substantially below the device, and then the guide frame 3 is slid in the longitudinal direction of the reference plate 2 for fine adjustment. At that time, the contact detection sensor 14 determines that the wear amount detection sensor 5 and the contact plate A face each other. A photoelectric switch or the like may be used as the contact detection sensor 14. Since the upper surface of the current collecting boat is highest in the scraping plate portion and is low in the other portions, it can be recognized that the scraping plate is located directly below the wear amount detection sensor by the photoelectric switch mounted downward. At that time, the sliding plate detecting sensor 14 is positioned on a straight line which is orthogonal to the reference plate 2 and passes through the wear amount measuring sensor 5. Then, the motor 13 is controlled by a signal from the sliding plate detecting sensor 14 to stop the guide frame 3 at a position where the wear amount measuring sensor 5 and the sliding plate A face each other. In the device of this example, the guide frame 3 was configured to slide over a width of 200 mm.

(Slider) Next, the sliding mechanism of the slider 4 will be described. The guide frame 3 is an elongated hollow prism and has a rail 15 fixed therein, and a slider 4 is fitted to the rail 15 (see FIG. 4). Slider 4
Has two wear measuring sensors 5 at each end, and penetrates thin notches 16 formed on both sides of the guide frame 3 along the longitudinal direction. Further, rollers 17 and 18 (see FIG. 1) are provided inside both ends of the guide frame, and a loop-shaped synchro belt 19 is wound around both rollers 17 and 18. Furthermore, the motor 20 attached to the end of the guide frame 3 causes the roller to pass through a pulley 21 (see FIG. 3).
17 are configured to work together. And the slider 4
Is one of the parallel belts 19 in the guide frame (Fig. 1,
4 (left side of 4) (see FIGS. 1 and 4). That is, the motor 20 rotates the rollers 17 and 18, and the belt 19 travels to move the slider 4.

(Slider Detection Sensor) By sliding the slider 4 along the guide frame 3 in this way, the wear amount measuring sensor 5 can be scanned over the entire length of the contact strip. However, it is sufficient for the wear amount measuring sensor 5 to scan over the entire length of the main rail plate, so the slider detection sensors 22 and 23 are provided on one side surface of the guide frame 3 to prevent the slider 4 from overrunning. Proximity switches and the like are suitable for the sensors 22 and 23. In this example, the slider detection sensors 22 and 23 are provided upward in the vicinity of the intersection of the guide frame 3 and the reference plate 2. To measure the amount of wear, slide the slider 4 from the sensor 22 side toward 23.
To move. When the slider 4 approaches the sensor 23, the signal at that time controls the motor 20 to reverse the slider 4. Then, when the slider 4 returns to a position close to the sensor 22, the motor 20 is controlled so that the slider 4 stops.
Control.

(Abrasion amount measuring sensor) Abrasion amount measuring sensor 5
A laser displacement meter was used for this. As shown in FIG. 2, the vertical distance between the reference plate 2 and all the wear amount detection sensors 5 is set to a constant value (100 mm in this example), and the reference plate 2 is brought into contact with the sliding plate to remove the wear amount detection sensors 5 from each other. If the distance to the contact plate A is measured, the amount of displacement from the reference plate 2, that is, the amount of wear can be calculated. In the actual device, the display is made by the remaining thickness of the contact plate.

(Measurement procedure) (1) First, the train is moved to the lower side of the device, and the contact plate is positioned substantially below the wear amount measuring sensor. At this time, both reference plates 2 come into contact with the auxiliary sliding plates, and the main sliding plates are located between them. (2) Next, the guide frame is slid by driving the motor, and the wear amount measuring sensor is positioned directly above the sliding plate. (3) The slider is moved from the sensor 22 side toward the sensor side 23, and the wear amount is measured over the entire length of the main rail plate. (4) Since the residual pressure of the contact plate can be known from the measurement result, it is possible to calculate the wear tendency by periodically measuring and predict the replacement time of the contact plate. (5) Then, if a predetermined amount of wear is recognized as a result of the measurement, it is more convenient to provide an alarm indicating that the replacement is in progress.

[0018]

As described above, according to the apparatus of the present invention, it is possible to automatically measure the wear amount of the contact plate without climbing on the roof of the train. In addition, by regularly monitoring the amount of wear, it is possible to predict when the replacement of the strips will occur.

[Brief description of drawings]

FIG. 1 is a plan view of the device of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

3 is a sectional view taken along the line BB of FIG.

FIG. 4 is a cross-sectional view taken along the line CC of FIG.

[Explanation of symbols]

1 Fixed frame 2 Reference plate 3 Guide frame
4 Slider 5 Wear amount measurement sensor 6 Insulator 7 Rail frame 8 Rail 9 LM guide 10 Ball screw 11 Female screw part 12
Support piece 13 Motor 14 Slip plate detection sensor 15 Rail 16 Notches 17, 18
Roller 19 Synchro belt 20 Motor 21 Pulley 22, 23
Slider detection sensor

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[Procedure amendment]

[Submission date] October 27, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Name of invention

[Correction method] Change

[Correction contents]

[Title of the Invention] Measuring device for wear amount of contact plate

Claims (5)

[Claims] 1. A pair of reference plates abutting on the sliding plate, a guide frame provided orthogonal to the reference plate, a slider sliding along the guide frame, and fixed to the slider at a predetermined distance from the reference plate. And a wear amount measuring device for a wear amount of the wear plate, the wear amount measuring sensor facing the wear plate. 2. A slider detection sensor provided on a guide frame or a reference plate, and when the sensor detects that the slider is in a predetermined position, the slider drive source is controlled based on the signal to regulate the slide width. The wear plate wear amount measuring device according to claim 1, further comprising: 3. The guide frame is configured to be slidable in the longitudinal direction of the reference plate.
The wear plate wear amount measuring device described. 4. A wear amount measuring sensor that slides in the longitudinal direction of a reference plate together with a guide frame and is located on a straight line that is orthogonal to the reference plate and passes through the wear amount measuring sensor, and a wear amount measuring sensor by the wear plate detecting sensor. 4. The abrasion plate wear amount measuring device according to claim 3, further comprising means for detecting a position on the abrasion plate and controlling a drive source of the guide frame so as to stop the guide frame at the position. 5. The wear amount measuring device for a contact plate according to claim 1, wherein the wear amount measuring sensor is a laser displacement meter.