JP2542765Y2 - Automatic line position 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 device for measuring and detecting the position (dimensions) of a train line with respect to a guide wheel contact surface of a guide rail and a traveling path and its limit in a new transportation system and a monorail. Things.

[0002]

2. Description of the Related Art FIG. 7 shows a conventional train line size measuring instrument used for a new transportation system and a monorail. 1a, 1
b is a train line installed along a route on which a vehicle of a new transportation system or a monorail (hereinafter referred to as a new transportation system is representative) travels, and 2 is an insulation of the train lines 1a and 1b at appropriate intervals. In addition, an insulator movably supports in the vehicle traveling direction, 3 is an insulator support plate on which the insulator 2 is mounted, 4 is a guide rail laid along a route on which the vehicle travels, and 6 is a traveling route of the vehicle. It is.

[0003] A conventional train line size measuring device 7 is a portable aluminum L-shaped measuring device, and is a horizontal member 8 supported by a pillow 12, a vertical member 9 with a scale, and a guide vehicle 30 of a guide rail 4.
A stopper 10 which contacts the surface 4a with which the
And a scale 11 with a scale that can move in the vertical direction along the vertical member 9 and also in the horizontal direction. Usually, a pillow 12 is placed on the traveling path 6 at a place where the insulator 2 supports the train lines 1a and 1b (hereinafter referred to as a train line supporting point).
, The measuring device 7 is placed, and the stopper 10 is brought into contact with the guide wheel contact surface 4 a of the guide rail 4. In this state, the scale 11 is sequentially moved in the vertical and horizontal directions to the positions of the electric lines 1b and 1a, and hits the electric lines 1b and 1a. At this time, the scale 11
Reading the dimensions h _b position, h _a and l _b, a l _a,
Contact line 1b, the height H _b of from roadway 6 1a, H _a and horizontal dimension L _b than the wheel contact surfaces 4a, calculates the L _a.

[0004], H _b or _{H a = h b + h C} , or h _a
+ A h _c, L _b or L _a = l _c -l _b or l _e -l _d. However h _c is the height of the pillow 12, the l _c is the length of the horizontal direction of the stopper 10.

[0005]

The prior art of the prior art has the following problems. (1) Too many artificial numbers are used to measure the dimensions of the train lines. For example, the running path length of the vehicle is 12 km, and the distance between the support points of the average train line is 2.
Assuming that the distance is 5 m, the measurement point is 4800 on a one-way road, and is 9600 on a round-trip line. Further, the measurement is not limited to the line support point, and may be performed at an arbitrary point in the middle of the line support point if necessary in consideration of the hanging down of the line. May exceed 2,000. (2) Due to the visual measurement, there are individual differences in reading, and sometimes misreading or recording errors occur. (3) Since the measurement can be performed only at the support point of the train line and at a specially designated point (point), the measurement is intermittent and has no continuity. (4) Since the measurement is performed intermittently as described in the above item (3), if there is a defect in a portion that is not measured, this cannot be found.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems in the prior art and to provide an automatic measuring device capable of continuously measuring the position of a train line.

[0007]

[Means for Solving the Problems] In order to measure each dimension of the position of the train line continuously and dynamically without manual operation and taking into account the conditions of the guide rails and the running path, (1) the position of the train line The automatic measuring device is installed on a movable trolley. (2) Provide a detection piece that moves in contact with the train line and a sensor that measures the distance between the detection piece and the detection piece. Alternatively, a non-contact sensor is provided for the train line. In addition, a sensor for detecting the vertical movement of these detecting pieces is provided. (3) Attach a sensor to the trolley and measure the height between the trolley and the traveling path. (4) A centering mechanism is provided in the automatic line position measuring device, and the amount of movement of the center pin of this device is measured by a sensor. (5) Provide a guide wheel for branching on the truck.

[0008]

[Function] (1) Since the automatic trolley line position measuring device is installed on a bogie that runs on its own or with another force, the trolley runs along the travel path, so that the trolley line position can be dynamically and automatically. Can be measured continuously. (2) Since the detecting piece that travels while contacting the train line moves in the horizontal and vertical directions with respect to the sensor at the fixed position according to the position of the train line, when the amount of movement is measured, the train line contacts the guide wheel. The horizontal and vertical distance between planes can be calculated. (3) Due to the centering mechanism, the center pin of the automatic train line position measuring device always comes to the center position of the guide rail even if the width of the guide rail changes during traveling. (4) Since the bogie can travel on the branch line by the branch guide wheel, the position of the train line provided on this branch line can be measured. (5) The vibration state during running can be measured. Therefore, the quality of the traveling path can be determined.

According to the above items (1), (2) and (3), it can be easily determined whether or not the dynamically measured train line dimensions are within a predetermined allowable range. Similarly, it can be determined whether or not the movement amount of the center pin in the item (4) exceeds the limit. If the movement amount of the center pin exceeds the limit, the width of the guide rail (the guide surface interval of the guide shaft) is abnormal. Can be determined.

[0010]

1 to 6 show an embodiment of the present invention. In FIG. 2, 1a and 1b are (+),
The (−) train line, 2 is an insulator, 3 is an insulator support plate, 4 is two guide rails, 5 is a branch rail (FIG. 6), and 6 is a running path, which is the same as FIG.

The automatic line position measuring device 21 is installed on a measurement carriage 31 capable of traveling, and includes a horizontal member 23,
L-shaped measuring device 22 composed of vertical member 24, horizontal member 23
And three arms 26 [26a, 26c, 26] fixed to the vertical member 24.
b] and an acceleration sensor (vibration meter) 42 provided on the horizontal member 23 and a thermocouple 43.

The three arms 26a, 26 of the vertical member 24
Sensors 41a, 41c, and 41b are attached to each of c and 26b at a fixed distance from the center of the guide surface 4a.
The intervals are the same as the design intervals of a and 1b. Arm 2
The detection pieces 40a and 40b of the 6a and 26b can be moved horizontally (left and right directions) on the arms 26a and 26b by a spring (not shown) so that the detection pieces 40a and 40b are always lightly contacted according to the erection state of the trolley line 1. It has become. Also, the detection piece 40
Since the portions of the wires a and 40b that come into contact with the trolley wires 1a and 1b have a slight height, even if the positions of the trolley wires slightly deviate from the set heights of the electric wires 1a and 1b, the contacts are surely contacted. I do. Therefore, the distances ma and mb between the detecting pieces 40a and 40b and the sensors 41a and 41b which fluctuate due to the sum of the change of the guide surface 4a and the displacement of the train lines 1a and 1b are determined by the sensors 41a and 4b.
1b, the horizontal distances L _A and L _B (FIG. 7) between the train lines 1a and 1b and the contact surface 4a of the guide rail 4 are determined by the movement amount md of the center pin 27 measured by the sensor 41d. It can be calculated by subtraction. The sensor 41c of the arm 26c has a horizontal distance m to the insulator support plate 3.
c is measured.

Next, as shown in FIGS. 1 and 5, the centering mechanism 25 has a center pin 27 rotatably attached to the horizontal member 23, a lever 28 fixed to the center pin 27, and rotation of the lever 28. Link 2 oscillating due to
9, a guide wheel 30 rotatably supported by the link 29, and a spring 44 provided between the horizontal member 23 and the lever 28. The horizontal member 23 rides on the carriage 31 via the bearing 32, and can be moved only in the width direction of the guide rail 4 by a pair of guide plates 33 indicated by a dashed line of the carriage 31. . Therefore, when the width of the guide rail 4 changes as shown in FIG. 5, the guide wheel 30 is always pressed against the contact surface 4a of the guide rail 4 by the spring 44, and the distance from the center of the center pin 27 to the connecting point of the link 29 is changed. Since p and the length b of both links 29 are the same, the center pin 27 moves to the center between the contact surfaces 4a at the portion where the width of the guide rail 4 has changed. This movement amount md is measured by a sensor 41d attached to the carriage 31.

Further, a pair of branching wheels 35 are mounted on each bracket 34 provided on both sides of the truck 31 so as to be rotatable one by one, and a rotary encoder 37 is mounted on the wheels 36 traveling on the traveling path 6 of the truck 31. Further, a sensor 41e is attached to the lower surface of the cart 31, and as shown in FIG. 6, a point switching device (not shown) for the traveling path is used.
The branching guide wheel 35 is guided by the branching rail 5 moved to the branching position (solid line), and the train line position measuring device 21 travels on the branching travel path, and the train line 1 erected along this route.
The mark is put on the display device or the recording paper (FIG. 4) for each unit traveling distance by the rotary encoder 37 of FIG. 1 so that a place having an abnormality can be easily found. Height me between running paths 6
Is measured, and the presence or absence of a wire break is detected.

The acceleration sensor 42 detects the presence or absence of abnormal vibration of the carriage 31 due to the road surface condition of the traveling road 6, and detects the location of the abnormal vibration. In addition, the thermocouple 43 detects the drooping and tensioning state of the train line 1 that occurs when the outside air temperature at the time of measuring the position of the line is different from the outside temperature at the time of installation.
Measure the outside air temperature at the time of measurement.

FIG. 3 shows the above-described sensors 41a to 41e, acceleration sensor 42, thermocouple 43 and rotary encoder 3.
7 values ma~me and travel distance signals measured are inputted to the arithmetic unit (computer), contact line position H _a, H _b,
L _A , L _B (FIG. 7), the change md in the width of the guide rail 4, the state me of the traveling path 6, and the vibration (amplitude) of the measuring device 21
The process of displaying in analog or digital form is shown in a block diagram.

Since the bogie 31 dynamically measures L _A and L _B of the train line 1 while traveling at a low speed of 5 to 10 Km / H, a change in the width of the guide rail 4 and a horizontal direction of the measuring device 21 are measured. Is included. The dimensions of the lines H _A and H _B measured dynamically include the droop of the line 1 due to the outside temperature. Therefore, the height of the train line 1 from the center of the guide rail 4 is measured by a differential transformer or the like (not shown).

[0018]

[Effect of the Invention] The automatic train line position measuring device according to the present invention is erected along the traveling path to supply power to vehicles traveling on the traveling path guided by guide rails laid along the traveling path. In a device for measuring the position of the train line, provided a measuring carriage guided on the guide rail and running on a running path, the measurement carriage, a sensor for measuring the distance between the contact line of the train line and the guide rail, The installation of the sensor for measuring the distance between the traveling path and the measurement bogie has the following effects.

[0019] Since the horizontal and vertical dimensions of the train line with reference to the guide rail can be measured accurately, dynamically and continuously, it is not possible to measure the size of the train line as in the case of the conventional train line size measuring device. There is no number, no individual differences in dimension reading, no misreading and no recording errors. Further, the quality of the train line, the guide rail, and the traveling path can be determined, and a point exceeding a preset limit can be easily and quickly found.

The measurement time is short since the measurement cart is run at an appropriate speed, for example, 5 to 10 Km / H for measurement.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is an enlarged view of a part of a train line in FIG. 1;

FIG. 3 is an operation block diagram of FIG. 1;

FIG. 4 is a diagram showing an output of the rotary encoder of FIG. 3;

FIG. 5 is a plan view of the centering mechanism of FIG. 1;

FIG. 6 is a plan view of a branch road.

FIG. 7 is a front view of a conventional train line size measuring instrument.

[Explanation of symbols]

 1a Train line (+) 1b Train line (-) 2 Insulator 4 Guide rail 6 Running path 31 Measurement cart 41a Sensor 41b Sensor 41e Sensor

Claims (1)

(57) [Scope of request for utility model registration] 1. An apparatus for measuring the position of a train line erected along a travel path to supply power to a vehicle traveling on the travel path guided by guide rails laid along the travel path, Providing a measurement carriage guided on the guide rail and traveling on a travel path, a sensor for measuring a distance between the contact line of the train line and the guide rail, and measuring a distance between the travel path and the measurement carriage on the measurement carriage. An automatic measuring device for the position of a train line, comprising a sensor for detecting the position of a train.