JP3050472B2 - Trolley wire measuring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trolley wire measuring device which is mounted on an overhead wire working vehicle and measures the amount of wear of the trolley wire, or the amount of lateral displacement and height change thereof.

[0002]

2. Description of the Related Art FIG. 7 schematically shows a construction of an overhead trolley wire (simply called a trolley wire) 1. In FIG. 7 (a), a messenger wire 1b is stretched between the supporting utility poles 1a, and the trolley wire 1 is horizontally stretched by using a hanger 1c. The height H _R of the trolley wire 1 from the rail surface changes depending on the track conditions, and the maximum change range is 800.
mm. On the other hand, pantograph 2 of train 2
a follows and makes sliding contact with its lower surface, receives power, and travels. Due to this sliding contact, the sliding plate of the pantograph 2a and the lower surface of the trolley wire 1 (sliding surface or simply sliding surface) are worn. In order to prevent the wear of the sliding plate of the pantograph 2a from being concentrated on the same part, the trolley wire 1
(b) As shown in FIG.
Each of them is alternately shifted in the left-right direction, and the shift amount D is usually 700 mm. Next, FIG. 7C shows a cross section of the trolley wire 1, and the cross section forms a circle having a diameter φ.
At the position shown, two grooves for the hanger 1c are provided. When the sliding surface 1e wears due to sliding contact with the pantograph 2a, the width w of the sliding surface gradually increases and the remaining diameter (remaining diameter) φ 'decreases. When this reaches the limit, the strength becomes weak. Therefore, the sliding surface width w or the remaining diameter φ ′ is measured in a timely manner to manage the abrasion state, and the trolley wire 1 reaching the limit is replaced.

[0003] The measurement of the residual diameter φ 'at the beginning was performed manually by using a micrometer. However, since this operation was dangerous and inefficient, an electric inspection vehicle was developed, The wear amount is measured while the vehicle is running with the measuring device mounted. FIG. 8 shows two examples of typical wear measuring devices currently used in electric inspection vehicles. FIG. 8 (a) shows a schematic configuration of the illumination light type wear measuring device 4, in which a plurality of lighting devices 41 are arranged at appropriate intervals on the roof of the electric inspection car 3, and the height change of the trolley wire 1 is changed. Illumination light is applied to the range of H _V and the lateral deviation D. The reflected light from the sliding surface 1e passes through the glass window 3a, the image is formed on the light receiving device 43 by the lens system 42, and the sliding surface width w is measured. Since there is a certain relationship between the sliding surface width w and the remaining diameter φ ′, the remaining diameter φ ′ is obtained by calculation. The wear measuring device 4 is used exclusively for nighttime measurement because the S / N ratio deteriorates and becomes unmeasurable when external light from the sky, particularly sunlight, enters the light receiver 43. The measurement is performed at the same running speed as that of.
Incidentally, in addition to the wear measurement device 4 to the electrical Kensokusha 3, necessary for the maintenance of the installation state of the trolley wire 1, various overhead line instrument is provided for such a height H _R or deviation amount D .

Since the 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. The laser beam L _T than the laser oscillator (not shown), deflected by the mirror 52a by the rotating mirror 51 is reflected by the 52 b, then it is projected vertically upward are parallel by parabolic mirror 53, to scan the range of deflection D . Reflected light L _R of the sliding surface 1e is received by the light receiving device back in the forward and the same path (not shown), sliding surface width w residual diameter phi 'by calculation is measured is determined. The wear measurement device 5, the intensity with a sufficiently large laser beam L _T, the combined use of external light removal filter, not the deterioration of the S / N ratio is a problem, it can be wear measurement daytime It is a feature, mainly mounted on the Shinkansen comprehensive test vehicle, and is measured at high speeds. The measurement of the deviation amount D is determined by the position of the reflected light L _R, various overhead line measurement device for such a height H _R is mounted on vehicles comps.

[0005]

The above two wear measuring devices 4 and 5 are both large in size and very expensive, and an electric inspection vehicle or a test vehicle equipped with them is required to travel in a traveling section. Is somewhat limited. On the other hand, electrified lines have relatively quiet branch sections and side lines, and their wear measurement is still performed by the manual method described above. For the purpose of labor saving and security, small and lightweight wear measurement is performed on these. There is a need for a device. In addition, this device
Provided the height measuring function for H _R and deflection amount D, it is efficient if simultaneously measured and the wear amount. In response to the above, there is an overhead line work vehicle called a track and land vehicle that can run on both tracks and roads (on land) for trolley line replacement work and maintenance work, and can be replaced at any time as needed. It is desirable that the above-mentioned measuring device be mounted on this overhead wire working vehicle. However, since the measuring device is an obstacle in a re-construction work or the like, a device that can be freely attached and detached is required. The present invention has been made to the above requirements, can detachably freely mounted on the overhead line work vehicle, wear of the trolley wire traveling at a low speed and has a function of measuring deviation amount D and the height H _R It is an object of the present invention to provide a small and lightweight trolley wire measuring device.

[0006]

SUMMARY OF THE INVENTION The present invention is a trolley wire measuring device which achieves the above object, is mounted on a wire work vehicle in a freely detachable manner, and is rotatable in a horizontal direction and a vertical direction.
A rotating mechanism having a movable arm biased upward by a spring, and a light amount type provided on the upper end of the movable arm to follow a change in the height of the trolley wire, a lateral deviation and a curved portion, and a residual diameter of the trolley wire. A sensor unit having a sensor,
And a data processing unit that processes the light receiving signal of the light quantity type sensor and outputs measurement data of the remaining diameter. In addition, a horizontal angle detector and a vertical angle detector for respectively detecting the horizontal and vertical rotation angles of the rotation mechanism are added to the rotation mechanism. And a calculation unit for calculating the left and right deviation amounts and the height position of the trolley wire by calculating the angle signal of the trolley wire. The rotation mechanism includes a support frame that can be freely detachably fixed to the overhead wire working vehicle, a rotation table that is pivotally supported by the support frame and that rotates in a horizontal direction, and a rotation table that is supported by the rotation table and vertically , And a movable arm of a parallel link type comprising a horizontal sensor base in which the ends of the parallel arms are connected to each other. The above sensor unit,
A follower base rotatably supported in a horizontal direction with respect to the sensor base, and two guides disposed on the follower base and contacting and following both sides of the trolley wire by the bias of the spring. It is composed of a roller and a light amount sensor. The above-mentioned two guide rollers have a beating shape in which both side surfaces of the trolley wire are in contact with each other, and are rotatably supported in a horizontal direction with respect to the following base by respective supports. The above-mentioned light amount type sensor is a light emitting unit which projects parallel light to one side surface of the trolley wire in a horizontal direction, and a light receiving unit which is provided on the other side surface of the trolley wire and has a filter for blocking external light. It is composed of The horizontal angle detector and the vertical angle detector are attached to the rotation axis of the turntable and the rotation axis of the movable arm, respectively.

[0007]

The above-mentioned trolley wire measuring device can be freely mounted on and removed from an overhead wire working vehicle. The rotating mechanism has a movable arm that is rotatable in a horizontal direction and a vertical direction, and is urged upward by a spring. The sensor section provided at the upper end of the movable arm follows the change in the height of the trolley wire, the left-right deviation, and the curved section, and a light receiving signal corresponding to the remaining diameter of the trolley wire is output from the light amount type sensor provided therein. The data is input to the data processing unit and the measurement data of the remaining diameter is output. Further, in the above measuring device, by a horizontal angle detector and a vertical angle detector added to the rotation mechanism,
The rotation angles in the horizontal direction and the vertical direction are respectively detected, and the calculation unit provided in the data processing unit calculates the angle signal of each angle detector, and calculates the lateral displacement amount and the height position of the trolley wire. Is calculated. However, since the height change amount of the trolley wire is calculated from the angle signal of the vertical angle detector and does not indicate the height position from the rail, the reference height data of the sensor unit is set in the data processing unit in advance. When this is added to the height change amount, the height position from the rail is obtained. In the above-mentioned turning mechanism, its support frame is detachably fixed to the overhead wire working vehicle, and the turntable pivotally supported by this is horizontally turned. Since the parallel arm pivotally supported by the turntable turns in the vertical direction, the sensor stand at the upper end of the movable arm can follow the left-right deviation and height change of the trolley wire. In this case, since the movable arm is of the parallel link type, the sensor base is always kept horizontal irrespective of the follow-up position. In the sensor section, its follower base is rotatably supported in a horizontal direction with respect to the sensor base, and two guide rollers disposed on the base are biased by a spring provided on a movable arm to form a trolley wire. The light amount sensor outputs a light receiving signal corresponding to the remaining diameter of the trolley wire by contacting and following both side surfaces. Since the two guide rollers form a drum shape, the trolley wire falls into the concave portion of the drum shape, and both sides come into contact with each other and are stably held. In addition, since each guide roller is rotatably supported in a horizontal direction by a supporting member with respect to the following base, the trolley wire does not deviate from each guide roller smoothly following the curved portion. In the light amount type sensor, a parallel light is projected in a horizontal direction on one side surface of the trolley wire by a light projecting unit, and a light receiving unit provided on the other side surface is shielded from outside light by a filter, and S / S Deterioration of the N ratio is prevented, and the residual diameter can be measured favorably. The overhead wire working vehicle equipped with the above-mentioned trolley wire measuring device travels at a low speed of, for example, about 7 km / h with respect to the trolley wire whose pressurization has been stopped, and its wear amount, lateral deviation amount, and height position are reduced. Measured continuously. It should be noted that the local measurement at a short portion can be measured in detail by the low-speed continuous measurement.

[0008]

1 to 6 show an embodiment of a trolley wire measuring apparatus 10 according to the present invention. FIG. 1 is an external view of the entire configuration, and FIG.
FIG. 3 is an explanatory view of the configuration and operation of the rotation mechanism 7, and FIG.
FIG. 4 is an explanatory view of the following operation of the sensor unit 8,
Figure 5 is a schematic view for illustrating a configuration and operation of the light amount sensor 85, FIG. 6 is an explanatory diagram of the installation position of the angle detector for measuring the lateral deviation D and the height variation H _V of the trolley line 1.

In FIG. 1, a trolley wire measuring device 10 includes a rotating mechanism 7, a sensor unit 8, and a data processing unit (including a power supply and an output unit) 9, and is mounted on an overhead wire working vehicle 6.
The turning mechanism 7 includes a support frame 71 that is detachably fixed to the overhead wire working vehicle 6, a turning table 72 that is supported by the supporting frame 71 and that turns in the horizontal direction, and a vertical direction that is supported by the turning table 72 and is And a movable arm 73 that rotates.

Referring to FIG. 2, a rotating base 72 has a rotating shaft 721.
Are pivotally supported by the support frame 71 and are turned by an angle θ _{D in the} horizontal direction. The movable arm 73 includes two parallel arms 73 each having a rotating shaft 731 and 732 pivotally supported at a position shown in FIG.
a, 73b, a connecting arm 73c for connecting the middle of both arms 73a, 73b, and a sensor base 73d for connecting the upper ends of both arms 73a, 73b to each other.
A spring 73e for urging the movable arm 73 upward between a member 73e provided at the base of the base 73a and a position closer to the front of the turntable 72.
It is constructed by extending. Due to the nature of the parallel link, sensor base 73d is always held horizontally irrespective of the height, the sensor portion 8 supported to the track in contact with the trolley wire 1 on the left and right deflection D and height change H _V I do. In this case, it left and right deflection D of the sensor unit 8 can follow is 700 mm, the range of height change H _V is 500 mm. Therefore, the left and right deflection D of the trolley wire 1 as described initially corresponding, but somewhat insufficient with respect to 800mm maximum height variation H _V. However, many line sections are about 500 mm and can be handled. When the turning mechanism 7 is not used, the turning table 72 is clamped to the support frame 71 by a clamp 72a for safety, and the movable arm 73 is set at the lowest position, and
It is fixed to the turntable 72 by 73f.

In FIG. 3, a sensor unit 8 is a tracking base.
81, two guide rollers 82a and 82b and light intensity sensor 85
Consisting of The tracking base 81 has a rotation axis 81a whose sensor base is
It is rotatably supported in a horizontal direction by being supported by a bearing 73g provided in 73d. Each guide roller 82a, 82b has a drum shape as shown in the figure, and is rotatably supported by respective support members 83a, 83b. Each support member 83a, 83b has a respective rotary shaft 84a, 84b.
b is rotatably supported in the horizontal direction by pivotally supporting the front and rear of the following base 81. The light amount sensor 85 is provided between the guide rollers 82a and 82b, and is opposed to each other.
b. In addition, two protective plates 86a, 86 for the retaining wire 1d of the trolley wire 1 are provided above the light amount sensor 85.
b is provided. If the weight of the sensor unit 8 is large, the load on the movable arm 73 increases, and the trolley wire 1
Of the guide rollers 82a, 82
b is a hollow structure that is lighter, and the sensor section 8 and the movable arm
We use as much aluminum as possible for each part of 73 and make it lightweight.

FIG. 4 is a plan view of the rotation mechanism 7 and the sensor unit 8, and the respective operations will be described. In (a), the trolley wire 1 has two guide rollers 82 on both sides.
It is held stably by contacting the hourglass-shaped dents of a and 82b. Now, the trolley wire 1 is displaced left and right by D / 2 (350 mm).
When each of the guide rollers 82a and 82b is displaced alternately, the movable arm 73 moves the angle θ _D corresponding to the displacement _D.
It reciprocates one by one. In this case, since the following base 81 rotates horizontally, each guide roller 82a, 82
b moves in parallel from side to side and always holds the trolley wire 1. When the trolley wire 1 is curved or bent in a horizontal plane as shown in FIG. 3B, the support members 83a and 83b rotate horizontally to follow the guide rollers 82a and 82b.
Is inclined as shown, so that the trolley wire 1 is securely held without deviating from the hourglass-shaped depression.

FIG. 5 is a vertical sectional view of the light quantity sensor 85, which comprises a light projecting portion 85a provided on one side of the trolley wire 1 and a light receiving portion 85b provided on the opposite side. Is done. The light projecting unit 85a includes a housing 851, a lamp light source 852 housed in the housing 851, and a light projecting lens 853. The light receiving unit 85b includes a housing 854, a filter 855 housed therein, a condenser lens 856, and a light receiving device. Consists of 857. The parallel light L _T projected from the light projecting unit 85a has been blocked in part by the trolley line 1, only the collimated light L _R transmitted through the upper and lower light receiving unit 85b
And the external light is removed by the filter 855, and the S / N
The deterioration of the ratio is prevented, the light is condensed by the condenser lens 856, received by the light receiver 857, and a light reception signal corresponding to the amount of received light is output. This light receiving signal is processed by the data processing unit 9 and the measurement data of the remaining diameter φ ′ is output to the output unit.

Next, referring to FIG. 6, the deviation amount D and the height change H _V
The installation position of the angle detector for measurement and the operation thereof will be described. The installation position is determined by using a rotation mechanism 7, a horizontal angle detector 722 using a potentiometer with respect to a rotation axis 721 of the rotation table 72, and a similar square angle detector with respect to a rotation axis 731 of the parallel arm 73a. Attach 733 respectively. The horizontal angle detector 722 changes the resistance value according to the horizontal rotation of the turntable 72, and the vertical angle detector 733 changes the resistance value according to the vertical rotation of the movable arm 73, and outputs an angle signal. On the other hand, when an arithmetic unit is provided in the data processing unit 9 to process each angle signal, measurement data of the lateral displacement and the height change of the trolley wire 1 is obtained. As described above, the reference height of the sensor unit 8 is added to the height change amount, and measurement data for the height from the rail is obtained. Each measurement data is output to the output unit together with the wear amount measurement data. Is done.

[0015]

As described above, the trolley wire measuring apparatus according to the present invention is a small and lightweight trolley wire measuring apparatus which can be freely mounted on and removed from an overhead wire working vehicle. The residual diameter can be continuously measured to measure the local wear, and the trolley wire deviation and height position are also measured at the same time, making it extremely inexpensive compared to conventional large electric inspection vehicles. The trolley wire can be used for each line section and operated at any time, so that various data necessary for management of the trolley wire can be obtained.

[Brief description of the drawings]

FIG. 1 is an external view showing an entire trolley wire measuring apparatus 10 according to an embodiment of the present invention.

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

FIG. 3 is an assembly diagram of the sensor unit 8 of FIG.

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

FIG. 5 is an explanatory diagram of the configuration and operation of the light amount sensor 85 of FIG. 3;

FIG. 6 is an explanatory diagram of an installation position of an angle detector with respect to the rotation mechanism 7 of FIG. 1 and an operation thereof.

FIG. 7 is a schematic view of an erection trolley wire 1 erection structure,
(a) is a side view, (b) is a plan view, and (c) is a cross-sectional view of the trolley wire 1.

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

[Explanation of Signs] 1 ... overhead trolley wire (simply trolley wire), 1a ... support pole, 1b ... messenger wire, 1c ... hanger, 1d ...
Detent wire, 1e ... sliding surface of trolley wire, 2 ... train,
2a: pantograph, 3: electric test car, 3a: glass window, 4: illumination light type wear measuring device, 5: laser type wear measuring device, 6: overhead wire working vehicle, 7: rotating mechanism, 71: support frame, 72: rotating table, 721: rotating shaft, 722: horizontal angle detector, 72a: clamp, 73: movable arm, 73a, 73b: parallel arm, 73c: coupling arm, 73d: sensor base, 73e: member, 73f ... Detent, 73g… Bearing, 731,732…
Rotating shaft, 733: vertical angle detector, 8: sensor unit, 81: tracking base, 81a: rotating shaft, 82a, 82b: guide roller, 83
a, 83b… Supporting tool, 84a, 84b… Rotating axis, 85… Light quantity sensor, 85a… Light emitting part, 851… Case, 852… Lamp light source, 85
3 ... Projection lens, 85b ... Light receiving unit, 854 ... Housing, 855 ... Filter, 856 ... Condensing lens, 857 ... Light receiving device, 9 ... Data processing unit, 10 ... Trolley wire measuring device of the present invention.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazufumi Matsuura 1-6-5 Marunouchi, Chiyoda-ku, Tokyo Inside the East Japan Railway Company (72) Inventor Toshikazu Yamazaki 1-6-5 Marunouchi, Chiyoda-ku, Tokyo Inside East Japan Railway Company (72) Inventor Nobuyuki Iizuka 2-6-2 Otemachi, Chiyoda-ku, Tokyo Inside Hitachi Electronics Engineering Co., Ltd. (56) References JP-A-5-71921 (JP, A) JP-A Heisei 5-69760 (JP, A) JP-A-61-62805 (JP, A) JP-A-60-38607 (JP, A) JP-A-49-2322 (JP, Y1) (58) Fields investigated (Int. Cl ^7, DB name) G01B 11/00 -. 11/30 102 G01B 21/00 - 21/32 B60L 3/00 B60M 1/28

Claims (7)

(57) [Claims] 1. A rotating mechanism having a movable arm that is removably mounted on an overhead wire working vehicle, is rotatable in horizontal and vertical directions, and is urged upward by a spring, and is provided at an upper end of the movable arm. A sensor section having a light-amount sensor for the remaining diameter of the trolley wire, following a change in the height of the trolley wire, a left-right deviation and a curved portion, and processing a light-receiving signal of the light-amount sensor to produce the remaining diameter. A trolley wire measuring device, comprising: a data processing unit that outputs measurement data of the trolley wire. 2. A horizontal angle detector and a vertical angle detector for respectively detecting the horizontal and vertical rotation angles of the rotation mechanism are added to the data processing unit. 2. The trolley wire measuring apparatus according to claim 1, further comprising an arithmetic unit for calculating an angle signal of the detector and calculating a lateral displacement amount and a height position of the trolley wire. 3. The rotating mechanism includes a support frame detachably fixed to the overhead wire working vehicle, a rotating table pivotally supported by the supporting frame and rotating in a horizontal direction, and the rotating table. And two movable arms of a parallel link type comprising a horizontal sensor base that couples the ends of the parallel arms to each other and that is pivoted in the vertical direction. The trolley wire measuring device according to claim 1, wherein 4. A trolley base rotatably supported in a horizontal direction with respect to the sensor base, and the sensor section is disposed on the tracing base, and both sides of the trolley wire are urged by the spring. 4. The trolley wire measuring apparatus according to claim 1, wherein the trolley wire measuring apparatus is constituted by two guide rollers that respectively follow and follow the light source, and the light amount sensor. 5. The two guide rollers have a drum shape in which both sides of the trolley wire are in contact with each other, and are rotatably supported in a horizontal direction with respect to the following base by respective supports. The trolley wire measuring device according to claim 1, 3 or 4, wherein: 6. The illuminated light sensor is provided on a side of the trolley wire to project parallel light to one side surface of the trolley wire in a horizontal direction, and is provided on the other side surface of the trolley wire to block external light. The trolley wire measuring device according to claim 1, wherein the trolley wire measuring device is configured by a light receiving unit having a filter. 7. The trolley wire according to claim 2, wherein the horizontal angle detector and the vertical angle detector are attached to a rotation axis of the turntable and a rotation axis of the movable arm, respectively. measuring device.