JP2001021323A - Measuring apparatus of height and displacement of trolly wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a measuring apparatus which can surely and visually confirm arrangement of a measuring apparatus just below a trolly wire, measure precisely height and displacement of the trolly wire, and obtain a simple structure at a comparatively low cost, and is small, light and easy to operate. SOLUTION: In a measuring apparatus 1 of height and displacement, a displacement measuring scale is installed in the longitudinal direction of a slide frame 2 stretched on a rail R, and an optical scale sensor on a slider 10 detects the scale and measures displacement D1. An original point detecting sensor 9 is installed at an original point position of a slide guide, and the optical scale sensor is set in the state of measurement start. When the first collimation line of a mirror 11 is made to coincide with the second collimation line of a collimation member 12, a vertical upper part is mirrored on a mirror 11 on the slider 10. Thereby arrangement just below the trolly wire T1 is enabled. A laser distance sensor 4 is fixed on the slide frame 2, and a prism on the slider 10 is irradiated with a laser light. The reflected irradiation light point is cast on the trolly wire T1, and the height L1 is measured. A control unit 5 displays the measured result and stores it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for measuring whether or not a trolley wire installed on a rail is disposed at an appropriate relative position vertically and horizontally with respect to the rail.

[0002]

2. Description of the Related Art Conventionally, the measurement of the erection height and displacement of a trolley wire has been performed using a height and displacement measuring gauge bar. The height of the trolley wire can be measured by a measuring person who carries a heavy, heavy gauge bar, stands up in orbit, extends the bar, and contacts the trolley wire at a height of about 5m with the deflection measuring gauge at the tip of the gauge bar. The bar is then measured by reading the height scale. The displacement of the trolley wire refers to a horizontal displacement of the trolley wire from the center point between the rails, and is measured by reading a gauge scale at a point where the displacement measurement gauge and the trolley wire are in contact. Since this measuring method is for reading the height of the gauge bar and the scale of deviation, the accuracy becomes about ± 10 cm and the accuracy is poor. In addition, a long displacement measuring gauge is inconvenient to handle. Further, there is a problem that the record must be separately kept. Also,
There is a measuring instrument in which a laser distance sensor is movably mounted on a gauge table which is orthogonally placed between rails. A method is known in which a laser distance sensor measures the distance of a trolley wire from a rail surface to a trolley wire in a non-contact manner and obtains a deviation from a vertically lower position of the trolley wire and a center position between rails. . In this method, the weight of the laser distance sensor and its peripheral members causes the gauge table to bend, causing a measurement error, and the cable connecting the sensor to a control device that processes signals from the sensor hinders movement of the sensor. There is.

[0003]

SUMMARY OF THE INVENTION Therefore, according to the present invention, the arrangement of a measuring instrument directly below a trolley wire can be visually confirmed.
It is an object of the present invention to provide a measuring device which can measure the height and displacement of a trolley wire with high accuracy, can obtain a simple structure, is relatively inexpensive, and is small, lightweight and easy to handle.

[0004]

In order to solve the above problems, in the first invention, the slide frame 2 is placed at a predetermined position on the rails R on both sides so as to extend across the rails R at right angles, A slider 10 is provided on the slide frame 2 so as to be slidable in the direction of its extension, and a mirror 11 is provided on the slider 10 for projecting the upper trolley wire T1 and arranging the mirror directly below the trolley wire T1. A laser distance sensor 4 is fixed to the slide frame 2, the irradiation light spot P is applied to the trolley wire T1, the distance to the trolley wire T1 is measured, and the height from the rail R surface to the trolley wire T1 is calculated. Set the mirror 11 on the slider 10
, A laser beam is reflected between the laser distance sensor 4 and the trolley wire T1 from the horizontal direction to the vertical direction, and the rails R, R on both sides of the slide frame 2 are fixed.
A displacement measuring scale 8 having a scale for displaying the displacement distance to both sides thereof along the sliding path of the slider 10 with the center between them as the origin is provided, and the optical scale sensor 14 is fixed on the slider 10. The scale of the measurement scale 8 is detected, the deviation distance is calculated and set as shown in the display section, and the slider 10 is slid from the origin position on the slide frame 2;
At the position where the trolley wire T1 directly above is reflected on the mirror 11, the signal from the optical scale sensor 14 is
1 and the height and displacement measuring device 1 of the trolley wire so that the irradiation light spot P is applied to the trolley wire T1 and a signal from the laser distance sensor 4 is received to display the height value L1 on the display unit. Was configured. In the second invention, the displacement value D1 is displayed on the slide frame 2 by receiving a signal from the optical scale sensor 14, and the height value L1 is displayed on the display unit by receiving a signal from the laser distance sensor 4. In addition, a control device 5 for storing both measured values is provided. In the third invention, an aiming point 11a for projecting the upper trolley line on the mirror 11 and disposing the slider 10 directly below the trolley line.
Is displayed, and an aiming member 12 having an aiming point 12c overlapping the aiming point 11a of the mirror 11 at a position where the mirror 11 projects vertically upward is provided directly above the mirror 11. In the fourth aspect, the slider 10 is provided with a magnifying mirror that faces the mirror 11 at a depression angle that projects vertically upward. In the fifth invention, the origin detection sensor 9 for detecting the optical scale sensor 14 and returning the measurement distance of the optical scale sensor 14 to 0 is provided at the origin position on the slide frame 2. In the sixth invention, the extension frame 15 is configured to be connectable so that the slide frame 2 can extend the displacement measurement range for measuring the main line T1 and the branch line T2 of the trolley wire.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a trolley wire height and displacement measuring device, FIG. 2 is a plan view, and FIG. 3 is a side view. 1 to 3, 1 is a height and displacement measuring device, 2 is a slide frame, 3 is a displacement measuring device, 4 is a laser distance sensor, 5 is a control device, R is a rail, and T is a trolley wire. is there.
The slide frame 2 is placed so as to span a predetermined position on the rail R. A displacement measuring device 3 is slidably provided on the slide frame 2.

The slide frame 2 extends perpendicular to the rail R and parallel to the rail surface. Slide frame 2
Is formed by a pair of parallel slide guides 7. A displacement measurement scale 8 is provided on the upper surface of one slide guide 7. The scale of the displacement measurement scale 8 is engraved so as to indicate the displacement distance to both sides of the scale with the center point between both rails being zero. An origin detection sensor 9 for detecting the measurement origin is provided at the center point between the rails R on the other slide guide 7. The origin detecting sensor 9 is constituted by a photoelectric sensor. When the optical scale sensor 14 is located at the origin, the optical scale sensor 14 in the control device 5 contacts with the slider 10.
Is reset to 0. Guide pieces 6 are provided at lower portions of both ends of the slide frame 2. The guide piece 6 is a plate piece bent at a right angle, and the mounting position on the rail R of the slide frame 2 is determined by bringing an arrangement reference surface into contact with the inner surface of the rail R.

The displacement measuring device 3 includes a mirror 11, a sighting member 12, a prism 13, and an optical scale sensor 14 on a slider 10. The slider 10 engages with the slide guide 7 of the slide frame 2 and slides along the slide guide 7. As shown in FIG. 4, the mirror 11 is fixed on the slider 10 while being inclined so that a trolley line T directly above is reflected when viewed obliquely downward at a predetermined angle. On the mirror surface of the mirror 11, a first sight line 11a of "+" is displayed. An aiming member 12 is provided above the mirror 11 in order to ensure visual observation vertically upward. The sighting member 12 has a transparent plate 12a positioned directly above the mirror 11, and is horizontally supported by a support plate 12b. On the transparent plate 12a, a second sight line 12c of "x" is displayed. As shown in FIGS. 5 and 6, the first aiming line 11a and the second aiming line 12
When the point of intersection with c is matched, the vertical upper part is reflected on the mirror 11. As shown by the broken line in FIG. 3, instead of providing the sighting line 11 a and the sighting member 12 on the mirror 11, the magnifying mirror 17 may be exposed together with the sighting line 11 a and the sighting member 12. That is, the magnifying mirror 17 is supported obliquely downward toward the mirror 11 by the support legs 18 fixed to the slider 10.
The magnifying mirror 17 sets the inclination angle so that the mirror 11 can be seen vertically upward when the mirror 11 is viewed through it.

The laser distance sensor 4 is fixed between one end portions of the slide guides 7 and 7, and the laser beam is directed from the irradiation window 4a in the extending direction of the slide guides 7 and 7 as shown in FIG. Is irradiated. The laser distance sensor 4 is
The distance to the trolley wire T1 is measured from the phase difference between the irradiation light to the trolley wire T1 and the reflected light from the trolley wire T1. As shown in FIG. 7, the prism 13 reflects the irradiation light and the reflected light so as to guide the irradiation light and the reflected light between the laser distance sensor 4 and the trolley wire T. The operator measures the mirror 11 of the measuring device 4
When viewed from obliquely, the irradiation light spot P hitting the trolley wire T in a state where the intersection of the first sight line 10a and that of the second sight line 12c coincide with each other is projected slightly above the coincidence point. Then, the laser distance sensor 4 measures the distance to the trolley wire T1, sends a signal to the control device 5, and the control device 5 displays the measurement result on the display unit and stores it in the internal storage unit.

The optical scale sensor 14 is fixed to an end of the slider 10 on the side of the displacement measurement scale 8. The optical scale sensor 14 detects the scale of the displacement measuring scale 8 by moving the displacement measuring device 3 from the origin detected by the origin sensor 9 to a position where the trolley wire T is reflected in the mirror 11. To generate a pulse signal. Upon receiving this signal, the control device 5 counts and calculates the deviation distance, displays this measurement result on the display unit, and stores it in the internal storage unit.

Reference numeral 15 denotes an extension frame, which is connected to one end of the slide frame 3 by a connection fitting 16 when measuring the height L2 and the deviation D2 of the crossover T2 outside the rail R, such as the crossover T2. It is configured to add. When this is used, the control device 5 performs measurement on the crossover T2, calculates the interval from the main line T1, displays it on the display unit, and stores it in the storage unit.

When measuring the height L1 and the deviation D1 of the trolley wire T1 on the rail using this measuring device 1, first, the guide piece 6 of the slide frame 3 is brought into contact with the inner surface of one rail R. Then, the measuring device 1 is set on the rail R.
Next, the displacement measuring device 3 is arranged at the measurement origin, and the control device 5
Turn on the power. When the origin sensor 9 detects contact with the slider 10, the control device 5 that has received this signal sets the count value to 0 and is ready to start measurement. Here, the displacement measuring device 3 is moved and brought to the mirror 11 at a position where the intersection of the first sight line 10a, that of the second sight line 12c and the trolley line T1 are superimposed. With the movement of the displacement measuring device 4, the optical scale sensor 14 sequentially emits a pulse signal that detects the scale of the displacement measuring scale 8, and the control device 5 counts the pulse signal to calculate the displacement D1. It is displayed on the upper display unit and stored in the storage unit. When the magnifying mirror 17 is provided, it is possible to easily aim at the trolley line T1 vertically above by looking at the mirror 11 through the magnifying mirror 17.

Next, at the position of the displacement measuring device 3,
The trolley wire T via the prism 13 by the laser distance sensor 4
When the irradiation light spot P is applied to the laser light source 1, the laser distance sensor 4
Detects the phase difference between the irradiation light and the reflected light, the height L1 of the trolley wire T1 on the rail R is calculated by the control device 5,
The information is displayed on the display unit and recorded in the storage unit. In this measuring device 1, the deflection measuring device 3 on the slide frame 3 can be configured to be small and lightweight, so that the deflection of the slide frame 2 is extremely small and the measurement accuracy is high. In addition, the crossover line T2
In the same manner, the height and the deviation are measured, and the control device 5
The distance from the main line is also displayed.

[0013]

As described above, according to the present invention, the height and displacement of the trolley wire can be measured easily with high accuracy, and the installation is simple and convenient. In particular, the trolley wire can be easily aimed with the magnifying glass, and the positioning of the measuring instrument is easy. Further, since the measurement record remains and the configuration is simple, the cable does not hinder the movement of the slider.

[Brief description of the drawings]

FIG. 1 is a front view of a trolley wire height and displacement measuring device according to the present invention.

FIG. 2 is a plan view of a height and displacement measuring device.

FIG. 3 is a side view of the height and displacement measuring device.

FIG. 4 is a schematic front view of the measuring instrument in a state of use.

FIG. 5 is a plan view of the mirror in a non-vertical state.

FIG. 6 is a plan view of the mirror as viewed vertically.

FIG. 7 is a front view of the use state of the laser distance sensor.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 height and displacement measuring device 2 slide frame 3 displacement measuring device 4 laser distance sensor 5 control device 6 guide piece 8 displacement measuring scale 9 origin detection sensor 10 slider 11 mirror 11 a first aiming line 12 aiming member 12 c 2 line of sight 13 prism 14 optical scale sensor 17 magnifier R rail T1, T2 trolley wire

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Motohisa Iguni 6-5-19 Minamishinagawa, Shinagawa-ku, Tokyo Sanwa Tekki Co., Ltd. (72) Morimi Yamakawa 6-5 Minamishinagawa, Shinagawa-ku, Tokyo No. 19 Sanwa Tekki Co., Ltd. (72) Inventor Yuichi Iwama 6-5-19 Minamishinagawa, Shinagawa-ku, Tokyo F-term in Sanwa Tekki Co., Ltd. 2F065 AA21 AA24 BB12 CC34 DD02 DD19 FF13 FF16 FF23 FF61 GG04 HH04 LL05 LL12 LL46 PP02 QQ23 QQ51 SS03

Claims (6)

[Claims] 1. A slide frame mounted on a predetermined position on both side rails so as to be orthogonal to the rail, a slider slidably provided on the slide frame in an extending direction thereof, A mirror that is fixed on the slider and projects the trolley wire above and positions itself directly below the trolley wire, and is fixed to the slide frame and measures the distance to the trolley wire by applying an irradiation light spot to the trolley wire. A laser distance sensor set to calculate the height from the rail surface to the trolley wire, and a laser beam fixed between the laser distance sensor and the trolley wire near the mirror on the slider. A prism reflecting in the vertical direction from the direction, and the slider slides the deviation distance to both sides with the center between both rails on the slide frame as the origin. A displacement measurement scale having a scale displayed along, and an optical scale sensor fixed on the slider and set as shown on a display unit by detecting the scale of the displacement measurement scale and calculating the displacement distance. The slider is slid from the origin position on the slide frame, and at a position where a trolley line right above is reflected on a mirror, a signal from the optical scale sensor is received and a deviation value is displayed, and A height and displacement measuring device for a trolley wire, wherein the illuminating light spot is applied to the trolley wire and a height value is displayed on a display unit in response to a signal from the laser distance sensor. 2. The slide frame receives a signal from the optical scale sensor to display a deviation value, and receives a signal from the laser distance sensor to display a height value on a display unit. The trolley wire height and deviation measuring device according to claim 1, further comprising a control device for storing the deviation value and the height value. 3. The mirror displays an aiming point for projecting an upper trolley line and placing a slider directly below the trolley line, and a mirror projects vertically upward immediately above the mirror. 2. The trolley wire height and deflection measuring device according to claim 1, further comprising: an aiming member having an aiming point overlapping the aiming point of the mirror at a position. 4. The trolley wire height and deflection measuring device according to claim 1, wherein the slider is provided with a magnifying mirror that faces at a depression angle at which a mirror projects vertically upward. 5. An origin detection sensor for detecting the optical scale sensor and returning a measurement distance of the optical scale sensor to zero is provided at an origin position on the slide frame. 4. The trolley wire height and deviation measuring device according to 4. 6. The slide frame is configured to be connectable with an extension frame so as to extend a displacement measurement range for measuring a main line and a branch line of a trolley wire. Item 2. The trolley wire height and deviation measuring device according to item 1.