JP2000038059A - Wear measuring device for trolley wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform accurate measurement of the remaining diameters of trolley wires one by one even when a plurality of the trolley wires are stretched tight in parallel at short intervals. SOLUTION: A moving plate 36 laterally moved along the zigzagging state of a trolley wire T is arranged on a fixed plate elevating following a trolley wire T height and a measuring device 4 to measure wear of the trolley wire T is arranged on the moving plate 36. A so formed wear measuring device for the trolley wire T comprises a detecting part body 41 movable over the moving plate 36 in a direction orthogonal to the trolley wire T; a detecting sensor 43 to detect a stretching fitment; and a drive mechanism to move the detecting part body 41 by a signal from the detecting sensor 43.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trolley wire abrasion measuring device, and more particularly to a trolley wire abrasion measuring device capable of easily and highly accurately measuring wear of a plurality of trolley wires arranged in parallel at small intervals in a twin simple section or the like. The present invention relates to a trolley wire wear measuring device.

[0002]

2. Description of the Related Art Conventionally, a trolley wire is worn or corrugated due to mechanical wear due to sliding with a pantograph and damage due to electric sparks generated at the time of power supply. For this reason, in order to make an electric car run at high speed and safely, the progress of the wear of the trolley wire is always grasped and the trolley wire is replaced at an appropriate time. As a method for measuring the wear of the trolley wire, the following method is currently employed. (1) Guide roller type A method of measuring the value of the distance from one point on the guide roller running along the trolley wire to the sliding surface of the trolley wire to detect the remaining diameter. (2) Sliding surface width type trolley wire A method of calculating the remaining diameter of the trolley wire by measuring the width of the sliding surface by irradiating a laser beam from the lower surface to the smooth wear surface of the trolley wire and using the reflected light (3) Residual diameter formula Right beside the trolley wire To measure the remaining diameter of the trolley wire directly by irradiating light from the

[0003]

Among the above-mentioned conventional methods for measuring the wear of the trolley wire, the guide roller type (1) has an advantage that the structure is simple and the measurement can be performed even in rainy weather. If it does not touch the trolley wire correctly, errors tend to occur and high-precision measurement cannot be performed. In addition, guide rollers must be replaced with trolley wires in a new section at places where train lines are stopped, and about 4-5 km / h in structure. There is a problem that measurement can be performed only at a low speed. In the sliding surface width method of (2), non-contact measurement enables measurement at high speed and measurement of a plurality of trolley wires such as an air section at the same time. In addition, the reflection of light from the burr causes a measurement error, and in the case of a carbon slide plate, the sliding surface of the trolley wire is blackened and the measurement light is not reflected, or a bright object is placed on the trolley wire. If there is, noise occurs when light is reflected, and high-precision measurement cannot be performed. Furthermore, with the speeding up of electric vehicles, there is another problem that the reflection of the sliding surface of an aluminum-based trolley wire such as a TA trolley wire is poor and measurement becomes difficult. Further, in the residual diameter formula of (3), even if there is a burr or blackening of the sliding surface on the worn surface of the trolley wire, measurement can be performed without causing a measurement error. However, when a plurality of trolley wires are overlapped at the same height at the intersection of the trolley wire or at the measurement section such as the air section, one or more remaining diameters of the trolley wire are obtained even when light is irradiated from right beside the trolley wire. Is measured, and cannot be measured accurately. So trolley wire 1
A method of irradiating light from one side of each book, receiving the light from the other side, and measuring the remaining diameter has been proposed. However, in a train section where the number of trains operated per hour in a large city or the like is large, the twin simple system is adopted. In this twin simple system, two trolley wires are stretched in parallel at relatively narrow intervals, for example, at an interval of 100 mm. There is a problem that the measurement unit cannot be measured due to the detection unit of the measuring device coming into contact with or hitting the tension fitting. The present invention solves the problems of the conventional method for measuring the wear of a trolley wire described above, and accurately measures the remaining diameter of each trolley wire one by one even if the plurality of trolley wires are stretched in parallel at narrow intervals. It is an object of the present invention to provide a trolley wire wear measuring device capable of performing the following.

[0004]

In order to achieve the above object, a trolley wire wear measuring device according to the present invention moves laterally on a fixed plate which moves up and down following the trolley wire height in accordance with the meandering of the trolley wire. In a trolley wire wear measuring device provided with a moving plate and provided with a measuring device for measuring wear of the trolley wire on the moving plate, a detection unit main body movably provided on the moving plate in a direction perpendicular to the trolley wire. And a detection sensor for detecting the position of the tensioning bracket, and a drive mechanism for moving the main body of the detection section by a signal from the detection sensor.

[0005] In the trolley wire wear measuring device of the present invention having the above-described configuration, the trolley wire is stretched even in a section in which a plurality of trolley wires are stretched in parallel at small intervals, such as a twin simple section. In the case of a mounting bracket such as a stabilizing bracket, a curve pulling bracket, etc., it is possible to prevent the contact of the trolley wire with the mounting bracket by moving the detection unit of the measuring device in advance, thereby enabling the trolley wire to be parallelized. Even if the measurement is performed, the measurement can be performed, and the measurement of the remaining diameter can be performed with high accuracy.

In this case, the detection unit main body forms projections facing each other with a notch formed in the center of the top surface through which a trolley wire is inserted, and one of the projections is provided with a light emitting device and the other is provided with a light emitting device. A light receiver can be provided.

In the trolley wire wear measuring device of the present invention having the above-described structure, the wear is detected by the light emitting device and the light receiving device from both sides of the trolley wire to be sent to the notch of the detecting portion. Detection is easy and highly accurate measurement of the residual diameter can be performed.

[0008] In this case, the two detector main bodies can be arranged on the movable plate.

The trolley wire wear measuring device of the present invention having the above-described configuration can simultaneously measure two remaining diameters of trolley wires parallel at small intervals.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a trolley wire wear measuring device according to the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a traveling vehicle such as an inspection vehicle, a track-and-land vehicle, and 2 denotes a traveling platform 1
Reference numeral 3 denotes a trolley wire following mechanism provided on the work table 2 so as to be able to move up and down. The trolley line following mechanism 3 can use a panda graph attached to a traveling vehicle. In this case, it is also possible to attach the panda graph directly from the traveling vehicle and omit the work table 2. The trolley wire following mechanism 3 shown in the drawing is mounted on a gantry 31 fixed to the work table 2 so that the trolley wire can be moved up and down by an elevator 32 such as a coupling, as shown in the figure. The fixing plate 34 is fixed so as to be horizontal.

A linear guide 35 is provided on the fixed plate 34.
A moving plate 36 is disposed via the trolley, and one trolley wire is provided on the moving plate 36 when the trolley wire is a single line, and when two trolley wires are stretched in parallel like a twin simple section. Attaches two measuring devices 4. The measuring device 4 includes a detecting unit main body 41 of the measuring device installed on a slide table 38 movable along a slide rail 37 laid on a moving plate 36 as shown in detail in the figure.
And a driving body 42 such as a solenoid for moving the detection unit main body 41 together with the slide table, one or two detection sensors 43, and a rotatable support on a bracket 39 projectingly fixed to the moving plate 36. The detection unit main body 41 is configured to be guided by the movement of the slide table to the trolley wire T at a fixed position by the guide roller.

The detection unit main body 41 has a notch at the center of the top surface,
Inside the protruding portions at both ends, one is provided with a light emitting device 41A including a red semiconductor laser R, a mirror M, and a lens L, and the other is provided with a light receiving device 41B including a CCD.
When a laser beam to be irradiated is received by the other light receiver 41B via the notch 45 at the center of the top surface, the wear of the trolley wire T inserted into the notch 45 at the center of the top surface is measured. . The notch 45 of the detection unit main body has an interval necessary for insertion of the trolley wire T for measurement with a laser beam, and the inside of the protrusions 46 and 47 on both sides has a light receiver 41B on one side and a light emitter 41A on the other side. Is formed in a size and shape suitable for accommodating the trolley wire T, but it is desirable that the height is low and the width is small so as not to come into contact with a vibration-absorbing bracket or a curve-triggering bracket that stretches the trolley wire T as much as possible.

A detection unit main body 41 is fixed to a slide table 38 and a driving body 42 provided on a movable plate 36.
Is connected via a connecting rod 48 to the driving body 42.
With the operation of, the detection unit main body 41 for each slide table is moved along the slide rail 37 in the direction orthogonal to the trolley wire tension direction, and the projections 46 and 47 come into contact with the tension fittings such as the detent or the curve trigger. Be able to move to temporarily evacuate. The timing of the movement and return of the detection unit main body 41 is determined by a detection sensor 43 provided on the moving plate 36, that is, the front and rear positions of the moving plate 36 which are before and after the traveling direction of the traveling vehicle along the trolley line. Are installed one by one in each of them, and a front-end detection sensor 43 detects a vibration-prevention bracket or a curve-trigger bracket that stretches the trolley wire T when the moving plate 36 is moving forward. The driving unit 42 is operated to move the detection unit main body 41 via the slide table 38 so that the tension bracket and the detection unit main body 41 are moved.
Are retracted so that the protruding portions 46 and 47 do not come in contact with each other, and are returned by the detection sensor in the rear direction.

The guide roller 44 receives a lower portion of the trolley wire T and is rotatably supported by a support 43a protruding from the bracket 39 so as to roll, and is detected by the shaft end of the guide roller. A rotary encoder for detecting the moving distance of the unit main body 41 and the current position is attached. FIGS. 1 and 5 show an embodiment in which one detection device 4 is mounted on the moving plate 36. For measurement of trolley wire wear in the twin simple section, as shown in FIG. 4 are arranged adjacent to each other before and after the moving plate in the traveling direction. In this case, the detection unit main bodies 41 are arranged so as to move in a direction away from each other.

A light emitting device (light emitting portion) and a light receiving device which are disposed so as to sandwich the trolley wire to be measured are irradiated with semiconductor laser light from the light emitting device side, and the amount of light reaching the light receiving device side. Is used to detect the remaining diameter of the trolley wire by utilizing the fact that the trolley wire varies depending on the diameter of the trolley wire. In addition to the CCD line sensor type, a light amount type, a laser beam type, or the like is employed.

In order to measure the wear of the trolley wire T using the trolley wire wear measuring device of the present invention configured as described above, the traveling vehicle 1 is caused to travel along a rail at a predetermined speed. In this case, as shown in FIGS. 1 and 5, the lower part of the trolley wire T is supported by the guide roller 44, and the trolley wire T is inserted into the notch 45 of the detection unit main body 41, that is, the position between the light receiver and the light emitter. Shall be kept. In the case of a single wire, only one measuring device is required, but in the twin simple section, two measuring devices are installed on the moving plate as shown in FIG. 6, and each trolley wire is placed between the detection unit main bodies of one measuring device. It is set to be inserted. Thus, the laser beam is emitted from the light emitting device 41A of the detecting section main body 41 and irradiated from right beside the trolley wire T and received by the light receiving device. In the CCD line sensor type, the size of the shadow formed by being blocked by the trolley wire T Is measured to measure the remaining diameter of the trolley wire, thereby measuring the state of wear of the trolley wire.

When the detection unit main body 41 approaches the position of the vibration-stop fitting or the curve fitting, first, the front detection sensor 43
4A, the metal fitting is detected as shown in FIG. 4A, and this detection signal is given to the driving body 42 to operate it. As a result, the detection unit main body 41 moves by a predetermined distance, and as shown in FIG.
As shown in the figure, the protruding portion position is temporarily retracted to a position where it does not contact the lower surface of the bracket, and after passing through the bracket position in this state, the rear detection sensor 43 detects that it has passed the bracket position, By turning off the excitation of the driving body, the main body of the detecting section is returned by the urging pressure of the spring or the like (FIG. 4 (C)),
In this way, the measurement of the wear of the trolley wire is continuously performed.

The fluctuation of the height position of the trolley wire on the rail during traveling is automatically adjusted by the panda graph or the trolley wire following mechanism 3, and the pressing force on the trolley wire by the guide roll is always kept constant. So that Further, at the same time as the measurement of the trolley wire wear, the traveling distance, that is, the wear position of the trolley wire in the section can be detected by the rotary encoder 48 attached to the guide roller 44, and the detection sensor 43 is used to stop or curve the fitting, that is, the power pole. The position can also be detected. Also, by attaching a sensor for detecting the amount of movement to the moving plate, the displacement of the trolley wire can also be detected. FIG. 7 shows a case where these detected values are given to a circuit unit, recorded in a data recording unit, and further, a data value is taken out.

[0019]

According to the trolley wire wear measuring device of the present invention, even in a section in which a plurality of trolley wires are stretched in parallel at small intervals, such as a twin simple section, each of the trolley wires can be used individually. In addition to being able to measure wear, the position of the detector unit at the position where it is stretched by the steady rest or curved trigger is used to detect and move the detector body, making it possible to measure without contacting the stretcher. In addition, there is an advantage that the measurement of the remaining diameter can be performed with high accuracy.

Further, according to the trolley wire wear measuring device according to the second aspect of the present invention, the wear is detected by the light emitting device and the light receiving device from both sides of the trolley wire transmitted to the cutout portion of the detecting portion. Therefore, the remaining diameter can be measured easily and with high accuracy.

Further, according to the trolley wire wear measuring device according to the third aspect of the present invention, the wear of two trolley wires parallel at narrow intervals can be measured simultaneously.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing a main part of a first embodiment of a trolley wire wear measuring device according to the present invention.

FIG. 2 is a front view showing the entire form of the trolley wire wear measuring device of the present invention attached to a traveling vehicle.

FIG. 3 is a side view showing the trolley wire wear measuring device.

FIG. 4 is an operation explanatory diagram viewed from a plane showing an order for measuring wear of the trolley wire.

FIG. 5 is an explanatory view of the operation of measuring the wear of the trolley wire as viewed from the front.

FIG. 6 is an operation explanatory view of simultaneously measuring the wear of two trolley wires parallel at a small interval one by one.

FIG. 7 is a flowchart for measuring the wear of the trolley wire.

FIG. 8 is a diagram illustrating the principle of measuring the wear of the trolley wire.

[Explanation of symbols]

 T Trolley wire 1 Traveling vehicle 3 Trolley wire tracking mechanism 34 Fixed plate 36 Moving plate 38 Slide table 39 Bracket 4 Measuring device 41 Detector main body 41A Light emitter 41B Light receiver 42 Driver 43 Detection sensor 44 Guide roller 45 Notch 46 Projection

Continuation of the front page (72) Inventor: Amano Dai 1-4-1, Meieki, Nakamura-ku, Nagoya, Aichi Prefecture Inside Tokai Passenger Railway Co., Ltd. (72) Inventor: Nobuyuki Kobayashi 1-1-1, Meieki, Nakamura-ku, Nagoya, Aichi No. 4 F-term in Tokai Railway Company (reference) 2F065 AA26 AA63 CC34 FF02 GG06 JJ02 JJ25 LL04 LL12 MM07

Claims (3)

[Claims] 1. A moving plate that moves laterally according to the meandering of a trolley wire is provided on a fixed plate that moves up and down following the trolley wire height, and a measuring device that measures wear of the trolley wire is provided on the moving plate. In a trolley wire wear measuring device,
A detection unit main body provided on the moving plate so as to be movable in a direction perpendicular to the trolley wire, a detection sensor for detecting the position of the tensioning bracket, and a driving mechanism for moving the detection unit main body by a signal from the detection sensor. A trolley wire wear measuring device characterized in that it is constituted. 2. The detecting unit main body has protruding portions opposed to each other with a notch formed in the center of the top surface through which a trolley wire is inserted. One of the protruding portions has a light emitting device, and the other has a light receiving device. 2. The trolley wire wear measuring device according to claim 1, further comprising: 3. The trolley wire wear measuring device according to claim 1, wherein the two detection unit main bodies are arranged on a movable plate.