JPH07123502A - Abrasion measuring apparatus for double trolley wire - Google Patents

Abstract

PURPOSE:To measure the abrasion of a double trolley wire while mounting on a stringing work truck. CONSTITUTION:The abrasion measuring apparatus comprises a rotary mechanism 7 comprising a supporting frame 71 being secured detachably to a stringing work truck 6, a horizontally rotatable supporting base 72 being supported thereon, and a hooked movable arm 73 supported on the base 72 while being urged upward to bend vertically, a sensor section 8 comprising two sets of light quantity type sensors disposed at the upper end of the movable arm 73 in order to follow up double trolley wires 1-1, 1-2, and a data processing section 9 for processing the light receiving signal from each sensor and outputting a measurement data of residual diameter. This structure realizes an inexpensive abrasion measuring apparatus, as compared with a conventional large electric measuring vehicle, which can be utilized in the measurement of abrasion in a double trolley wire section.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus mounted on an overhead line work vehicle for measuring the amount of wear of a double trolley wire.

[0002]

2. Description of the Related Art FIG. 6 schematically shows the construction of an overhead trolley wire (simply called a trolley wire) 1. In FIG. 6 (a), the messenger wire 1b is stretched between the supporting electric poles 1a, and the trolley wire 1 is horizontally spread by using the hanger 1c. The height H _R of the trolley wire 1 from the rail surface changes depending on the condition of the track, and the maximum change range is 800
It is about mm. On the other hand, pantograph 2 of train 2
a follows and slides into contact with the bottom surface of the a, receives power and travels. This sliding contact causes the sliding plate of the pantograph 2a and the lower surface (sliding surface, or simply sliding surface) of the trolley wire 1 to wear. In order to avoid the abrasion of the sliding plate of the pantograph 2a from concentrating on the same part, the trolley wire 1 is
As shown in (b), by using the retaining wire 1d, the utility pole 1a
Each of them is installed so as to be displaced in the left-right direction alternately, and the displacement amount D is usually 700 mm. Next, FIG. 6 (c) shows a cross section of the trolley wire 1, which has a circular shape with a diameter φ.
Two grooves for the hanger 1c are provided at the positions shown. When the sliding surface 1e is worn by sliding contact with the pantograph 2a, the width w of the sliding surface gradually increases and the remaining diameter (remaining diameter) φ ′ becomes smaller. When this reaches the limit, the strength becomes weak, so the sliding surface width w or the residual diameter φ ′ is measured in a timely manner to control the wear state, and the trolley wire 1 that has reached the limit is replaced.

When the electric current used by the electric train 2 is large in a direct current section or the operating density is high, two trolley wires 1 are installed in parallel in order to supply a sufficient electric current. It is called a double trolley line (or twin trolley line). FIG. 7 shows a double trolley wire, and the two trolley wires 1-1 and 1-2 are arranged at a predetermined interval d, and the pantograph 2a simultaneously comes into sliding contact with them.

Initially, the residual diameter φ'was measured manually by using a micrometer. Since this work is dangerous and inefficient, an electric inspection car was developed and it was worn. The amount of wear is measured while the vehicle is running with the measuring device installed. FIG. 8 shows two examples of typical wear measuring devices currently used in electric inspection vehicles. FIG. 8 (a) shows a schematic configuration of an illumination light type wear measuring device 4, in which a plurality of illuminators 41 are arranged at appropriate intervals on the roof of the electric inspection vehicle 3 to change the height of the trolley wire 1. Illumination light is applied to the range of H _V and the lateral deviation D. The reflected light of the sliding surface 1e passes through the glass window 3a, and the lens system 42 forms an image of the image on the light receiver 43 to measure the sliding surface width w. Since the sliding surface width w and the residual diameter φ ′ have a certain relationship, the residual diameter φ ′ can be calculated. This wear measuring device 4 is used only for nighttime measurement because the S / N ratio deteriorates and measurement becomes impossible when outside light from the sky enters the light receiver 43, especially sunlight. It is measured at the same running speed as.

Since the above-mentioned wear measuring device 4 is inconvenient because the measurement is limited to nighttime, a laser type measuring device capable of measuring day and night has been developed. FIG. 8B shows a schematic configuration of the laser type wear measuring device 5. A laser beam L _T from a laser oscillator (not shown) is deflected by the rotating mirror 51, reflected by the mirrors 52a and 52b, then made parallel by the parabolic mirror 53 and projected vertically upward to scan the range of the deviation D. . The reflected light L _R of the sliding surface 1e returns along the same path as the outward path and is received by a light receiver (not shown), the sliding surface width w is measured, and the residual diameter φ ′ is calculated. This wear measuring device 5 has a sufficiently high intensity of the laser beam L _T and uses an external light removal filter together, so that deterioration of the S / N ratio does not pose a problem and wear measurement can be performed even in the daytime. It is a feature, and it is mainly installed in the Shinkansen comprehensive test car and is measured at high speed.

The above-mentioned two wear measuring devices 4 and 5 are both large in size and quite expensive, and the electric inspection vehicle or test vehicle equipped with them has a limited traveling section. . On the other hand, electrified lines have relatively quiet branch lines and lateral lines, and the wear measurement is still performed by the above-mentioned manual work method.In order to save labor and security, small and lightweight wear measurement for these is performed. A device is desired. On the other hand, there is a overhead line work vehicle called a railroad vehicle that can run on both orbit and road (land) for replacement work and maintenance work of the trolley line, and can be replaced at any time as needed, It is desirable that the above measuring device be mounted on this overhead line work vehicle. However, the measuring device will be an obstacle in the replacement work, so a device that can be freely attached and detached is required. On the other hand, the inventor of the present invention has developed a small and lightweight measuring device that can be freely attached to and detached from an overhead line work vehicle.
Filed as a patent. However, this measuring device is only for single-line trolley wire and cannot be used for double trolley wire section. In addition, there is a weakness that only a range of 500 mm can be dealt with for a change in height of the trolley wire. It should be noted that this measuring device also has a function of measuring the lateral displacement amount and height position of the trolley wire.

[0007]

As a next step, the trolley wire measuring device described above is improved so that it can handle double trolley wires, and the maximum range of height change of the trolley wire is 800.
There is a need for a wear measuring device that can handle mm.
The present invention has been made in view of the above, and an object thereof is to provide a small and lightweight measuring device that can be detachably mounted on an overhead line work vehicle and travels at a low speed to measure the wear amount of a double trolley wire. To do.

[0008]

SUMMARY OF THE INVENTION The present invention is a double trolley wire wear measuring device, which includes a support frame which can be freely detachably fixed to an overhead line work vehicle, and which is pivotally supported by the support frame to rotate in a horizontal direction. The support and the support are pivotally supported and urged upward by springs to bend up and down.
A rotation mechanism consisting of a V-shaped movable arm and a horizontal mechanism installed at the upper end of the movable arm to maintain the horizontal position. Sensor unit having two sets of light quantity type sensors for each remaining diameter of the two trolley wires, and data for processing received light signals of each light quantity type sensor and outputting measurement data of each remaining diameter. And a processing unit. The sensor unit is disposed on the follow-up base that is rotatably supported in the horizontal direction with respect to the upper end of the movable arm, and on the follow-up base. Two guide rollers that come into contact with each other, a cylindrical roller that comes into contact with the bottom surface of the other trolley wire, and two sets of light quantity type sensors that are arranged at right angles to the two trolley wires. It is composed of The two guide rollers have a drum shape in which both side surfaces of the trolley wire come into contact with each other, and are horizontally rotatably supported by the respective supporting tools with respect to the follower base. It has a length that can accommodate changes in the distance between the trolley wires. Each light amount sensor is configured by a light projecting unit that horizontally projects parallel light to one side surface of each trolley wire and a light receiving unit that is provided on the other side surface side and has a filter that blocks external light. To be done.

[0009]

The double trolley wire wear measuring device described above is mounted on an overhead line work vehicle, and the support frame is detachably fixed. The support, which is supported by the support frame, rotates horizontally, and the movable arm has a V shape, and is urged upward by a spring to bend up and down. The sensor provided on the upper end of the movable arm is kept horizontal and follows the changes in height and left / right deviation and bending of each of the two trolley wires in the double trolley wire section, and the two sets of light intensity The photosensor outputs a light receiving signal for each remaining diameter of the two trolley wires, each light receiving signal is processed by the data processing unit, and measurement data of the remaining diameter of each trolley wire is output.
The above-mentioned "U" -shaped movable arm expands and contracts within a range approximately twice the length of each side of the "U", so even with a relatively small one, the maximum change in height H _V of the trolley wire is Value 800m
This is one of the features of the present invention because it is an advantageous one that can sufficiently cope with m. Next, in the above-mentioned sensor section, the follow-up base is rotatably supported in the horizontal direction on the upper end of the movable arm, and the two guide rollers arranged on the follower base are provided on both sides of one of the two trolley wires. The cylinder roller contacts the bottom surface of the other trolley wire. Further, the two sets of light quantity type sensors are arranged at right angles to the two trolley wires, and the respective remaining diameters are measured. Since the two guide rollers have a drum shape, the trolley wire falls into the concave portion of the drum shape and both side surfaces contact each other and are stably held. Further, since each guide roller is rotatably supported in the horizontal direction by each supporting member with respect to the follow-up base, it smoothly follows the curved portion of the trolley wire and does not deviate. Since the cylindrical roller has a length capable of accommodating a change in the distance between the two trolley wires, the other trolley wire makes a stable contact without departing from this. The parallel light from the light-projecting section of each light-quantity sensor is projected horizontally to one side of each trolley wire, and only the parallel light that has passed through the upper and lower sides of the remaining diameter enters the light-receiving section and is filtered by the filter. External light is blocked and S /
The deterioration of the N ratio is prevented, and the residual diameter can be measured satisfactorily. An overhead line work vehicle equipped with the above-mentioned wear measuring device, for the double trolley wire section where pressurization is stopped,
For example, the vehicle runs at a low speed of about 7 km / hour, and the wear amounts of both trolley wires are continuously measured. Further, it is possible to measure the local wear occurring in the short portion in detail by the continuous measurement at the low speed. It is obvious that the above wear measuring device can be applied to the section where the trolley wire is one line, and the above rotation mechanism has an angle for detecting the horizontal rotation angle of the support base and the bending angle of the movable arm. By adding a detector, the deviation amount D of the trolley wire and the height change amount H _V can be measured.

[0010]

1 to 5 show one embodiment of a duffel trolley wire wear measuring apparatus 10 of the present invention, FIG. 1 is an external view of the entire structure, and FIG. 2 is an explanatory view of the structure and operation of a rotating mechanism 7. 3, FIG. 3 is an external view of the sensor unit 8, FIG. 4 is an explanatory diagram of the follow-up operation of the sensor unit 8, and FIG. 5 is an explanatory diagram of the configuration and operation of each light amount type sensor 85, 86.

In FIG. 1, a wear measuring apparatus 10 comprises a rotating mechanism 7, a sensor section 8 and a data processing section (including a power source and an output section) 9 and is detachably mounted on an overhead line work vehicle 6. . The rotation mechanism 7 includes a support frame 71 that is detachably fixed to the overhead line work vehicle 6, a support base 72 that is pivotally supported by the support frame 71 and that is horizontally rotated, and is vertically supported by the support base 72 and is pivoted. It is composed of a movable arm 73. The rotation mechanism 7 is
The lightweight member such as aluminum is used as much as possible to reduce the weight, the followability of the movable arm 73 is improved, and the mounting and removal of the overhead line work vehicle 6 is facilitated.

In FIG. 2, the support base 72 has a rotary shaft 72a.
Is pivotally supported by the support frame 71 and rotates in the horizontal direction by an angle θ _D. The movable arm 73 has its bases pivotally supported at pivotal support points p ₁ and p ₂ of the support base 72 at appropriate intervals.
The main arm 73a and the support arm 73b, and the upper end of the first main arm 73a is pivotally supported on the pivotal support point p ₃ at an appropriate position, and the upper end of the support arm 73b is pivotally supported on the pivotal support point p ₄ at the lower end. An arm 73c, a bracket 73d fixed to the base of the first main arm 73a, a spring 73e stretched between the bracket 73c and the rear portion of the support frame 72, and a rotary plate pivotally supported by the pivot point p ₃ of the second main arm. 73f,
The first auxiliary arm 73g connecting between the bracket 73c and the rotary plate 73f, the second auxiliary arm 73h whose lower end is pivotally supported by the rotary plate 73f, and the second main arm 73c and the second auxiliary arm 73h, respectively. The upper end is a shaft fulcrum p with an appropriate interval.
_The sensor base 73i is pivotally supported by ₅ and p ₆ , respectively.

The operation of the movable arm 73 will be described below with reference to FIG. Now, the first main arm 73a is the spring 73e.
It is assumed that the second main arm 73c and the second main arm 73c are pulled upward by a certain amount as shown by the solid line in the figure. When the sensor base 73i follows the trolley wire 1 and descends as shown by the arrow A, the second main arm 73c starts rotating clockwise about the axis fulcrum p ₃ in the direction of the arrow C _{1 accordingly.} However, its lower end cannot be raised because it is restricted by the support arm 73b pivotally supported by the pivot point p ₂ . Therefore, the first main arm 73a rotates counterclockwise around the pivot point p ₁ in the direction of arrow C ₂ against the pulling force of the spring 73e, and the bending angle θ _V of both main arms decreases, and at the same time, Second
The lower end of the main arm 73c descends as indicated by arrow C ₃ , and the upper end of the support arm 73b makes a circular movement (counterclockwise) indicated by arrow C ₄ . In this case, since the bracket 73d fixed to the base of the first main arm 73a is also rotated (counterclockwise), the first auxiliary arm 73g which are rotatably supported thereto is lowered as indicated by arrow C _5, the The rotating plate 73f that supports the upper end rotates (counterclockwise). This rotation causes the second auxiliary arm 73h to move to the arrow C.
_The sensor base 73i pushed out in the direction of ₆ and pivotally supporting its upper end is rotated horizontally (counterclockwise) about the pivotal support point p ₅ of the second main arm 73c and kept horizontally. It The above is the case where the sensor base 73i descends, but when it rises, each part rotates or rotates in the opposite direction to the above, the bending angle θ _V of both main arms increases and the movable arm 73 expands, The platform 73i is always maintained horizontally and follows the height change H _V of the trolley wire 1. When the wear measurement is not performed, the movable arm 73 is lowered to the lowest position as shown by the dotted line in the figure, and clamped to the support frame 71 by the clamp 71a or the like. Regarding the lengths of the arms 73a and 73b of the movable arm 73 and the positions of the shaft fulcrums p _{1 to} p ₆ , the deviation amount D and the height change amount H of the trolley wire 1 are described.
Appropriate length and position can be determined by computer simulation under the condition of _V.

In FIG. 3, the sensor unit 8 is a tracking base.
81, and two guide rollers 82a and 82b for one trolley wire 1-1, which are respectively arranged on the follower base 81, and a light quantity type sensor 84 which is provided in the middle thereof and includes a light projecting section 84a and a light receiving section 84b. Cylindrical roller 8 for the other trolley wire 1-2
5, a protective plate provided on both sides of the light quantity type sensor 86 including a light emitting portion 86a and a light receiving portion 86b, and a trolley wire retaining wire 1d (see FIG. 6 (b)) for protecting the above respective portions. It is composed of 83a, 83b, and 83c. Tracking base
The rotation shaft 81a of the 81 is supported by the sensor base 73i of the movable arm 73 and is freely rotatable in the horizontal direction. Each of the guide rollers 82a, 82b has an hourglass shape as shown in the figure, and is rotatably supported by the respective supporting members 83a, 83b. The supporting members 83a, 83b are respectively supported by the front and rear portions of the follower base 81. It is allowed to rotate in the horizontal direction. Further, the cylindrical roller 85 has a length that can cope with a change in the distance d between both trolley wires.

FIG. 4 shows a plan view of the rotating mechanism 7 and the sensor section 8, and the respective operations will be described. In (a), one trolley wire 1-1 is stably held by contacting both side surfaces thereof with the hourglass-shaped recesses of the guide rollers 82a and 82b, and the other trolley wire 1-2 is trolley wire 1-2. Even if the distance d from 1-1 changes, the sliding surface 1e always contacts the upper surface of the cylindrical roller 85. Now both trolley lines 1-1 and 1-2
When the right and left are alternately displaced by the displacement amount D / 2 (350 mm), the respective guide rollers 82a and 82b follow this, and the movable arm 73 reciprocally rotates by the angle θ _D. In this case, since the follow-up base 81 rotates horizontally, the guide rollers 82a and 82b move parallel to the left-right together with the follow-up base 81, and the trolley 1
-1 is always retained and the trolley wire 1-2 always contacts the cylindrical roller 85. In the above, both trolley wires 1-1, 1-2
Is curved in the horizontal plane as shown in (b),
Following this, the support tools 83a, 83b rotate horizontally and the guide rollers 82a, 82b incline as shown in the figure, so that the trolley wire 1-1 is securely held without departing from the hourglass-shaped recess. .

Next, the construction and operation of each light quantity type sensor 84, 86 will be described with reference to FIG. Each light quantity type sensor 84,86 has a light projecting portion 84a, 86a provided corresponding to one side surface of each trolley wire 1-1,1-2, and a light receiving portion 84b, 86b provided on the opposite side. Composed. The light projecting units 84a and 86a are composed of a housing 851, a lamp light source 852 housed in the housing 851, and a light projecting lens 853.
The light receiving units 84b and 86b each include a housing 854, a filter 855 housed in the housing 854, a condenser lens 856, and a light receiver 857. The collimated light L _T projected from the light projecting units 84a and 86a is partially blocked by the trolley wires 1-1 and 1-2, respectively, and only the collimated light L _R that has passed through the upper and lower sides of the collimated light L _T is received by the light receiving units 84b and 86b. Incident on
External light is removed by the filter 855 to prevent deterioration of the S / N ratio, and the light is collected by the condenser lens 856 to be received by the light receiver 857.
The light is received by and the light reception signal corresponding to the amount of light received is output. These received light signals are processed by the data processing unit 9, and the measurement data of the residual diameter φ'for both trolley wires 1-1 and 1-2 are output to the output unit.

[0017]

As described above, the double trolley wire wear measuring device according to the present invention is a compact and lightweight device that can be freely attached to and detached from an overhead line work vehicle, and can handle a maximum change in height of the trolley wire of 800 mm. It is equipped with a movable arm, runs at low speed in the double trolley wire section where the pressurization is stopped, and the remaining diameters of the two trolley wires are continuously measured, and local wear can also be measured. Yes, it is manufactured at an extremely low cost compared to the conventional large-sized electric inspection vehicle. Instead, it is applied to the double trolley line section and operated at any time to obtain the wear data necessary for maintenance management. There is an excellent one.

[Brief description of drawings]

FIG. 1 is an external view showing an overall configuration of a double trolley wire wear measuring device 10 according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a configuration and an operation of a rotating mechanism 7 of FIG.

3 is an external view of the sensor unit 8 of FIG.

FIG. 4 is an explanatory diagram of a follow-up operation of the sensor unit 8.

FIG. 5 is an explanatory diagram of a configuration and an operation of each light amount type sensor 85, 86.

FIG. 6 shows an outline of an erection structure of the overhead trolley wire 1,
(a) is a side view, (b) is a plan view, and (c) is a sectional view of the trolley wire 1.

FIG. 7 is an explanatory diagram of a double trolley wire.

8A is a schematic configuration diagram of an illumination light type wear measuring device 4, and FIG. 8B is a schematic configuration diagram of a laser type wear measuring device 5.

[Explanation of symbols]

1 ... Overhead trolley wire, 1-1, 1-2 ... Each trolley wire in a double trolley wire section, 1a ... Support pole, 1b ... Messenger wire, 1c ... Hanger, 1d ... Retaining wire, 1e
… Sliding surface of trolley wire, 2… train, 2a… pantograph,
3 ... Electric inspection vehicle, 3a ... Glass window, 4 ... Illumination light type wear measuring device, 5 ... Laser type wear measuring device, 6 ... Overhead line work vehicle,
7 ... Rotation mechanism, 71 ... Support frame, 72 ... Support base, 72a ...
Rotating shaft, 73 ... Movable arm, 73a ... First main arm, 73
b ... Support arm, 73c ... Second main arm, 73d ... Bracket, 73e ... Spring, 73f ... Rotating plate, 73g ... First
Auxiliary arm, 73h ... Second auxiliary arm, 73i ... Sensor base,
8 ... Sensor part, 81 ... Follow-up base, 81a ... Rotation axis, 82a, 82
b ... Guide roller, 83a, 83b ... Supporting device, 84, 86 ... Light quantity type sensor, 84a, 86a ... Light emitting part, 84b, 86b ... Light receiving part, 851, 85
4… Housing, 852… Lamp light source, 853… Projector lens, 855
… Filter, 856… Condenser lens, 857… Light receiver, 87a, 87
b, 87c ... protective plate, 9 ... data processing unit, 10 ... wear measurement device of the present invention, deviation of D ... trolley wire, the height of the trolley wire from H _R ... rail, a change in H _V ... Height Range, d ...
Double trolley wire spacing, θ _D … Rotation angle of support, θ
_V ... bending angle p ₁ ~p ₆ ... pivot point of the movable arm, C ₁ ~
C ₆ ... Arrow indicating rotation, rotation or movement

Front page continued (72) Inventor Kazushi Matsuura 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72) Inventor Shigeo Iguchi 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Passenger Railway Co., Ltd. (72) Inventor Nobuyuki Iizuka 2-6-2 Otemachi, Chiyoda-ku, Tokyo Inside Nikkei Electronics Engineering Co., Ltd. (72) Tsutomu Nakadai 2-6-2 Otemachi, Chiyoda-ku, Tokyo No. Nititsu Electronics Engineering Co., Ltd.

Claims (4)

[Claims] 1. A support frame that can be detachably fixed to an overhead line work vehicle, a support base that is pivotally supported by the support frame to rotate in a horizontal direction, and a support frame that is pivotally supported by the support base and is moved upward by a spring. A rotating mechanism composed of a dogleg-shaped movable arm that is biased and bent up and down, and a horizontal trolley wire that is provided at the upper end of the movable arm and is maintained horizontally. A sensor unit having two sets of light quantity type sensors for each remaining diameter of the two trolley wires, and a light reception signal of each light quantity type sensor, following height changes, left and right deviations, and curved portions. A double trolley wire wear measuring device comprising: a data processing unit that outputs measurement data of respective remaining diameters. 2. A follow-up base that is rotatably supported in the horizontal direction with respect to the upper end of the movable arm,
Two guide rollers arranged on the follower base, which follow the two trolley wires by contacting one side surface of the two trolley wires by the biasing force of the spring, and a cylinder contacting the bottom surface of the other trolley wire. A roller and the two sets of light quantity type sensors arranged at right angles to the two trolley wires, respectively.
The double trolley wire wear measuring device according to claim 1. 3. The two guide rollers have a drum shape in which both side surfaces of the trolley wire are in contact with each other, and are rotatably supported by the respective support members in a horizontal direction so as to be freely rotatable with respect to the follower base. The double trolley wire wear measuring device according to claim 2, wherein the cylindrical roller has a length capable of accommodating a change in a distance between the two trolley wires. 4. Each of the light amount type sensors is provided with a light projecting unit that horizontally projects parallel light to one side surface of each trolley wire and a filter that is provided on the other side surface side and blocks external light. The double trolley wire wear measuring device according to claim 1 or 2, wherein the double trolley wire wear measuring device comprises: