JP2573469Y2 - Orbit inspection 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 track inspection device for detecting track deviation of a railway line.

[0002]

2. Description of the Related Art In order to operate a train safely and in a comfortable running state, it is necessary to maintain and maintain a track in a good state at all times. For this purpose, it is necessary to inspect the track, and the method includes a method using a high-speed track inspection vehicle, a method using a portable track inspection device, and a manual method.

[0003] High-speed track inspection vehicles are mainly used in long track sections. For example, in small sections such as yards,
It uses manual or portable track inspection equipment. The portable track detector device, and performs automatic gage work is run Ri by the human power, and has a structure as shown in the schematic Figures 6 and 7. 6 and 7, reference numeral 100 denotes a reference beam. FIG. 6 is a view of the portable track inspection device as viewed from the bottom side. The bottom of the street reference beam 100 rolls on the tread surface of the rail 201 to be measured and moves the street reference beam 100 along the rail 201 to be measured.
Running wheels 101 and gauge surface 2 of rail 201 to be measured
01A, two guide rollers 102 for measuring runaway that rotate in contact with 01A, a gauge reference beam 103 projecting from the center of the reference beam 100 toward the opposite rail 202,
A traveling wheel 104 provided at the free end of the gauge reference beam 103
And the auxiliary contact 106 for pressing the third guide roller 102 against the rail surface 201A of the measured rail 201 by pressing the third guide roller 102 against the rail surface of the measured rail 201. A run-out detection roller 108 elastically pressed against the rail surface 201A of the rail 201 to be measured by the biasing force of the spring 107 at a center position of the mounting interval of the third guide roller 102;
It is composed of a street sensor 109, such as a differential transformer, for converting the amount of run-away into an electric signal by the run-away detecting roller 108, and a handle 110 for moving the apparatus.

With such a structure, the rail to be measured 20
1, the reference beam 100 and the rail to be measured 2 are caused to travel by hand.
01 is output from the sensor 109, and the amount of the deviation is stored in a memory at every fixed traveling distance by a detection signal of a distance sensor (not shown), and the amount of the deviation is measured.

[0005] In addition to the portable orbital inspection device for measuring the amount of runaway by the structure described above,
A structure that measures both the amount of out-of-gauge has been proposed.

[0006]

[Problem to be Solved by the Invention] In the case of measuring both the deviation amount and the deviation amount between gauges, apart from the case where both are measured at once, especially when only the deviation amount between the lines is measured, The gauge deviation is measured while the reference beam 100 is attached. The passage reference beam 100 has a predetermined length (3 to 4) in order to accurately measure the deviation.
Meters), and it must be rigid, so it is heavy and cannot be installed or removed on track alone. In addition, since the gauge reference beam 103 and the reference beam 100 are integrated, there is also a disadvantage that the overall shape becomes large and carrying becomes inconvenient.

[0007]

According to the present invention, a reference beam is detachably provided for a gauge reference beam which is arranged to be spanned between gauges, and only a gauge reference beam is used when measuring a gauge misalignment amount. It is configured to run on rails and to measure only the deviation between gauges independently.

Therefore, according to the present invention, when measuring the distance between gauges, it is only necessary to remove the reference beam and run on the rail only with the gauge reference beam. Therefore, when only the gauge is to be measured, only the gauge reference beam needs to be handled, so that there is an advantage that the size and weight can be reduced and the handling can be easily performed. Further, since the gauge reference beam and the reference beam can be separated from each other, the size of the transport case can be reduced. Therefore, there is an advantage that the portable device can be easily carried.

[0009]

1 to 3 show an embodiment of a portable trajectory measuring device according to the present invention. FIG. 1 shows a plan view of a state in which a street reference beam 100 is attached to a gauge reference beam 103. In the figure, reference numeral 111 denotes a tightening screw with an operation knob. The reference beam 100 is tightened and fixed to the gauge reference beam 103 by the tightening screw 111. In this example, the tightening screw 111
The case where five are provided is shown.

Three traveling wheels 101 are mounted on the street reference beam 100. When the street reference beam 100 is attached to the gauge reference beam 103, the street reference beam 1
The traveling wheel 101 attached to the rail 00 contacts the tread surface of the rail 201 to be measured and rolls on the rail 201 to be measured.
When the reference beam 100 is removed from the gauge reference beam 103, the traveling wheel 301 shown in FIG. 2 contacts the tread surface of the measured rail 201, and the traveling wheel 301 supports one end of the gauge reference beam 103. The traveling wheel 301 is mounted on a frame 302 provided at one end of the gauge reference beam 103.
Is supported on the bottom side. A second guide roller 303 (see FIGS. 2 and 3) is provided near the inner wall surface of the frame 302. The second guide roller 303 rolls into contact with the rail gauge surface when the reference beam 100 is removed and serves as a reference point for gauge inspection, and has a flat surface between the frame body 302 and the gauge reference beam 103. A measuring device main body 305 is mounted on the pedestal 304.

The first displacement detector 30 is provided on the bottom side of the base 304.
6 is mounted. As the first displacement detector 306, a displacement-electric converter that converts a linear displacement amount into an electric signal, such as a differential transformer, can be used. Movable rod 3
Although not specifically shown in 06A, in the same manner as described in the prior art, the biasing force is applied toward the outward from the end of the gauge reference beam 103 by a spring, attached to the distal end by the elastic biasing force roller 306B is pressed against the rail surface of the rail.

A sliding shaft 307 is provided on the other end of the gauge reference beam 103. The sliding shaft 307 is provided at the other end of the gauge reference beam 103 with the gauge reference beam 103.
And a biasing force (not shown) in a direction protruding outward from an end of the gauge reference beam 103 by a biasing force of a spring (not shown). As the sliding shaft, for example, a shaft having a square cross section is used, and the sliding shaft is supported by being prevented from rotating with respect to the gauge reference beam 103. A block 308 is attached to the tip of the sliding shaft 307,
A second guide roller 309 is provided on the bottom side of the block 308.
Is provided. This example shows a case where two second guide rollers 309 are attached.

The traveling wheels 311 are provided outside the block 308. The traveling wheel 311 and the traveling wheel 301 provided on the frame 302 support the gauge reference beam 103 on the gauge, and the first guide roller 303 and the second guide roller 309 are in contact with the gauge surface of the rail so that the gauge reference beam 103 is provided. 1
03 is supported in the gauge. The frame 302 is provided with a distance measuring wheel 312 (see FIGS. 1 and 2) for transmitting a traveling distance signal at a position above the traveling wheel 301. The distance measuring wheel 312 is directly connected to, for example, a rotary encoder. By rotating the rotary encoder, for example, a pulse is transmitted one by one every time the vehicle travels on a rail by 1 mm. It is configured so that the distance can be integrated.

The sliding shaft 307 is provided between the gauge reference beam 10
The second displacement detector 313 inserted in the frame constituting the third 3
The distance between the gauges is detected by the sum of the displacement detection amounts of the second displacement detector 313 and the first displacement detector 306. Reference numeral 314 denotes a handle. When the handle 314 is pushed by hand to travel on the rail, and the reference beam 100 is removed as shown in FIG.

The method of calculating the gauge deviation will be schematically described with reference to FIG. A and b shown in FIG.
And the measured value of the second displacement detector 313. c is defined as a value obtained by adding the length of the gauge reference beam 103 and the length of the pedestal 304, and this is a design gauge value G serving as a reference (for example, 1435 m).
It is set to a value equal to m). Therefore, the track deviation X is calculated as follows: X = a + b + c−G = a + b (1)

Next, a structure for attaching the reference beam 100 to the gauge reference beam will be described with reference to FIGS.
In FIG. 3, the distance measuring wheel 312 is omitted. As shown in FIGS. 2 and 3, the screw holes 112 are formed in the members of the frame 302 and the members forming the pedestal 304. The reference beam 100 can be attached to the gauge reference beam 103 by screwing the screw portion of the tightening screw 111 provided on the reference beam 100 through the screw hole 112. The fastening screw 111 is provided with a knob having a large diameter at the upper end, so that the fastening operation and the removing operation can be performed manually.

As shown in FIG.
In the case of mounting on the reference beam 03, the third guide roller 102 provided on the reference beam 100 is arranged so as to protrude toward the rail side from the first guide roller 303. First guide roller 3
03 and step δ of the third guide roller 102 (see FIG. 5) is to change the values of a and b shown in Formula, the step δ has a
And b are further changed differentially (a + δ, b−δ)
Therefore, the added value of the term of the step δ becomes 0, and the gauge deviation amount X
Does not affect Therefore , even when the reference beam 100 is attached, the measurement of the gauge deviation can be performed.

When the street reference beam 100 is attached to the gauge reference beam 103, the traveling wheel 101 attached to the street reference beam 100 is arranged to protrude below the traveling wheel 301 attached to the frame 302. Therefore, in this case, the wheels 301 attached to the frame 302 are lifted up, and the frame 302 and the pedestal 304 are supported on the rails by the traveling wheels 101 attached to the reference beam 100 so that the vehicle can travel.

FIG. 5 is a principle diagram showing a state in which the reference beam 100 is attached as shown in FIG. In a state where both the track deviation and the path deviation are measured at the same time, they are supported in the gauge by the second guide rollers 102 and the second guide rollers 309 provided at both ends of the reference beam 100. In this state, measurement values a, b, and v are obtained. “a” indicates a displacement measurement value of the first displacement detector 306, “b” indicates a displacement measurement value of the second displacement detector 313, and “v” indicates a deviation amount. The deviation amount v is determined by the distance between the line connecting the contact points of the third guide roller 102 with the rail and the rail gauge surface at the center position of the reference beam 100.

The measured value a is a = v + δ, and thus the amount v of deviation is obtained by v = a− δ (2) .

[0021]

As described above, according to the present invention, since the reference beam 100 can be attached and detached along the gauge reference beam 103, only the gauge reference beam 103 needs to be used when only the gauge deviation is to be measured. I just need. Therefore, it is not necessary to carry the reference beam 100 as the shape is large, so that it is easy to handle and convenient.

Further, by attaching the reference beam 100, there is also obtained an advantage that, in addition to the irregularity of the gauge, the amount of the irregularity can be measured at a time, and the effect is very large for practical use.

[Brief description of the drawings]

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

FIG. 2 is a plan view showing a state in which a reference beam is removed from the trajectory inspection device according to the present invention.

FIG. 3 is an exploded perspective view for explaining a structure of a main part of the present invention.

FIG. 4 is a diagram for explaining an operation in a case where a track deviation is detected by the track detection device according to the present invention.

FIG. 5 is a diagram for explaining the operation in the case of detecting a deviation and a gauge deviation by the trajectory measuring device according to the present invention.

FIG. 6 is a plan view for explaining a conventional technique.

FIG. 7 is a front view for explaining a conventional technique.

[Explanation of symbols]

 100 way reference beam 101 running wheel 102 third guide roller 103 gauge reference beam 301 running wheel 302 frame 303 first guide roller 304 pedestal 305 measuring instrument body 306 first displacement detector 306B roller 307 sliding shaft 309 second guide roller 311 Running wheel 313 Second displacement detector

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2-171402 (JP, A) JP-A-58-55701 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) G01B 5/00 G01B 21/00

Claims (1)

(57) [Scope of request for utility model registration] 1. A. First Embodiment B. a gauge reference beam spanned between the rails ; The rail is provided at one end and the other end of the gauge reference beam and is elastically pressed against the gauge of the rail by a biasing force of a spring.
B. a first displacement detector and a second displacement detector for detecting contact between the rails and the rails; One end of the gauge reference beam has a longitudinal direction in a direction perpendicular to the gauge reference beam, and has guide rollers at both ends that abut against the gauge surface of the rail to be measured. Attached and fixed,
A trajectory measuring device comprising a reference beam which can be removed from the gauge reference beam by removing the fastening screw.