JPH0523004U - Orbit inspection device - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a track inspection device that is easy to handle. [Configuration] Gauge reference beam 103 passed between rails
On the other hand, the reference beam 100 having a longitudinal direction in a direction orthogonal to the reference beam 100 is detachably attached, and when the amount of gauge deviation is measured, the reference beam 100 is removed and the gauge reference beam 1
If only 03 is run and the reference beam is attached to the gauge reference beam and it is run on the rail,
You can check both of the passing times at once.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a track inspection device for detecting a track deviation of a railroad track.

[0002]

[Prior Art]

 In order to operate a train safely and in a comfortable riding condition, it is necessary to maintain the track in a good condition at all times. For this purpose, it is necessary to inspect the track, and there are methods such as using a high-speed track inspection vehicle, using a portable track inspection device, and manually.

The high-speed track inspection vehicle is mainly used for a long track section, but for a small section such as a yard, for example, a manually or portable track inspection apparatus is used. A portable track inspection device is a device that travels by human power and automatically performs inspection work, and has a structure as schematically shown in FIGS. 6 and 7. 6 and 7, reference numeral 100 denotes a reference beam. FIG. 6 is a view of the portable orbit measuring device as seen from the bottom side. The bottom of the passing reference beam 100 rolls on the tread surface of the rail to be measured 201, and the three running wheels 101 that cause the passing reference beam 100 to travel along the rail to be measured 201 and the rail to be measured 201. The two guide rollers 102 for contacting and rotating on the track surface 201 A, for measuring the deviation, the gauge reference beam 103 protruding from the center of the reference beam 100 toward the opposite rail 202, and the gauge reference beam 103. Of the traveling wheel 104 provided at the free end of the rail, and the spring 105 presses it against the gauge surface of the opposite rail 202. At the center position of the mounting distance between the auxiliary contactor 106 and the third guide roller 102, which passes over, Of the deviation detection roller 108 that is elastically pressed by the deviation force of the deviation sensor, and the deviation sensor 109 that converts the deviation amount into an electric signal by the deviation detection roller 108. And a handle 110 for moving the device.

When the passing reference beam 100 is manually driven on the rail 201 to be measured by such a structure, the deviation amount between the passing reference beam 100 and the rail 201 to be measured is output from the sensor 109, and the distance sensor The amount of deviation is stored in the memory for each fixed distance traveled by a detection signal (not shown), and the amount of deviation is measured.

In addition to the portable orbit measuring device that measures the deviation amount by the above-described structure, a structure that measures both the deviation amount and the deviation amount is also proposed.

[0006]

[Problems to be solved by the device]

 With a structure that measures both the deviation amount and the deviation amount, both when measuring both at once, especially when measuring only the deviation amount, with the reference beam 100 attached. Measuring the amount of track deviation. The passage reference beam 100 requires a predetermined length (3 to 4 meters) to measure the passage accurately, and since it must have rigidity, it is heavy and installed on the track. Removal cannot be done by one person. Further, since the gauge reference beam 103 and the through-reference beam 100 are integrated, there is a drawback that the entire shape becomes large and the carrying becomes inconvenient.

[0007]

[Means for Solving the Problems]

 In this invention, a reference beam is provided so that it can be attached to and removed from the gauge reference beam that is placed across the gauge, and when the gauge deviation is measured, the gauge reference beam alone is used to drive the rail. It is configured so that only the amount of gauge error can be measured independently.

Therefore, according to the present invention, when the amount of gauge deviation is measured, it is sufficient to remove the passing 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, which has the advantage of being compact and lightweight and easy to handle. Further, since the gauge reference beam and the passing reference beam can be separated, the size can be reduced when they are transported. Therefore, there is an advantage that it can be easily carried.

[0009]

【Example】

 1 to 3 show an embodiment of a portable track inspection device according to the present invention. FIG. 1 is a plan view showing a state in which the through reference beam 100 is attached to the gauge reference beam 103. In the figure, 111 indicates a tightening screw with an operation knob. The reference beam 100 is fastened and fixed to the gauge reference beam 103 by the tightening screw 111. In this example, the case where five tightening screws 111 are provided is shown.

Three traveling wheels 101 are attached to the street reference beam 100. When the passing reference beam 100 is attached to the gauge reference beam 103, the traveling wheels 101 attached to the passing reference beam 100 come into contact with the tread surface of the rail 201 to be measured and roll on the rail 201 to be measured. To do. When the passing 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 rail 201 to be measured, and the traveling wheel 301 supports one end of the gauge reference beam 103. The traveling wheel 301 is supported on the bottom surface side of a frame 302 provided on one end side of the gauge reference beam 103. A second guide roller 303 (see FIGS. 2 and 3) is provided near the inner wall surface of the frame 302. This second guide roller 303 has a flat surface between the frame 302 and the gauge reference beam 103, which rolls on the gauge surface of the rail when the passing reference beam 100 is removed and acts as a reference point for gauge measurement. A pedestal 304 is provided, and the measuring device main body 305 is mounted on the pedestal 304.

A first displacement detector 306 is attached to the bottom surface side of the pedestal 304. As the first displacement detector 306, for example, a displacement-electric converter that converts a linear displacement amount into an electric signal, such as a differential transformer, can be used. Although not shown in particular, the movable rod 306A is biased outward from the end of the gauge reference beam 103 by a spring, and is attached to the tip by this elastic biasing force, as described in the prior art. The roller 306B is pressed against the rail surface of the rail.

A sliding shaft 307 is provided on the other end side of the gauge reference beam 103. This sliding shaft 307 is supported at the other end of the gauge reference beam 103 so as to be able to move in and out in the axial direction of the gauge reference beam 103, and although not particularly shown, it is outwardly moved from the end of the gauge reference beam 103 by the biasing force of a spring. A biasing force is applied in the protruding direction. As the sliding shaft, for example, a shaft having a rectangular 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, and a second guide roller 309 is provided on the bottom surface side of the block 308. In this example, a case where two second guide rollers 309 are attached is shown.

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 The beam 103 is supported within the gauge. The frame 302 is provided with a distance measuring wheel 312 (see FIGS. 1 and 2) for transmitting a travel distance signal to an upper position of the travel wheel 301. The distance measuring wheel 312 is directly connected to, for example, a rotary encoder, and by rotating the rotary encoder, one pulse is transmitted each time the vehicle travels 1 mm on the rail, and the pulse is input to the measuring device body 305. It is configured so that the mileage can be integrated.

The sliding shaft 307 is connected to a second displacement detector 313 inserted in a frame forming the gauge reference beam 103, and the sum of displacement detection amounts of the second displacement detector 313 and the first displacement detector 306. The gauge error is measured by. Reference numeral 314 denotes a handle, and by pushing the handle 314 with a hand, the vehicle travels on the rail, and when the passing reference beam 100 is removed as shown in FIG. 2, the misalignment amount is measured.

A method of calculating the gauge deviation amount will be briefly described with reference to FIG. A and b shown in FIG. 4 indicate measured values of the first displacement detector 306 and the second displacement detector 313. c is defined by a value obtained by adding the lengths of the gauge reference beam 103 and the pedestal 304, and this is set to a value substantially equal to the reference design gauge G (for example, 1435 mm). Therefore, the gauge deviation amount X is calculated by X = a + b + c-G (1).

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

When the passage reference beam 100 is attached to the gauge reference beam 103, the third guide roller 102 provided on the passage reference beam 100 is arranged so as to protrude from the first guide roller 303 to the rail side. The step δ between the first guide roller 303 and the third guide roller 102 (see FIG. 5) changes the value of c shown in the equation, but since this step δ is a known value, the pass-through reference beam 100 is attached. It is possible to perform an out-of-gauge amount of inspection even in a closed state.

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

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

The measured value a is a = v + s (s is the distance between the reference position p of the first displacement detector 306 and the tangent line contacting the outside of the third guide roller 102, and is given as a constant value. In v, v = a−s (2) The gauge deviation amount X is X = a + b + cc−G (3) cc is the difference c between the first guide roller 303 and the third guide roller 102 in c of the equation (1). The value is subtracted and corrected.

[0021]

[Effect of the device]

 As described above, according to the present invention, the reference beam 100 can be attached to and detached from the gauge reference beam 103. Therefore, if only the gauge deviation is desired to be measured, only the gauge reference beam 103 may be used. Therefore, since it is not necessary to carry the reference beam 100 having a large shape, the handling is easy and convenient.

Further, by installing the passing reference beam 100, there is an advantage that the amount of deviation can be measured at one time in addition to the deviation of the gauge, and the effect is great for practical use.

[Brief description of 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 through reference beam is removed from the orbit 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 when a track error is measured by the track inspection device according to the present invention.

FIG. 5 is a view for explaining the operation when the track inspection device according to the present invention detects a passage error and a track error.

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 reference beam 101 traveling wheel 102 third guide roller 103 gauge reference beam 301 traveling 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 traveling wheel 313 second displacement detector

Claims (1)

[Scope of utility model registration request] 1. A gauge reference beam which is arranged so as to be passed between rails, and which is provided at one end side and the other end side of the gauge reference beam and which rolls on the gauge surface of the rail to detect the gauge deviation of the rail. A first displacement detector and a second displacement detector, a longitudinal direction in a direction orthogonal to the gauge reference beam on one end side of the gauge reference beam, and guide rollers abutting the gauge surface of the rail to be measured on both ends. A track inspection apparatus comprising: a reference beam which is fastened and fixed to the gauge reference beam by a tightening screw, and a reference beam which can be removed from the gauge reference beam by removing the tightening screw.