JPS6033902A - Absolute correction of track correcting machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a track straightening method in which a track is straightened while running on the rails of the track, and in particular, to a three-point-straight track straightening method. By automatically correcting the height of the front reference section using a laser beam and photoelectric elements such as solar cells, the reference line is installed at a predetermined height and the absolute alignment of the track rails is carried out. Concerning the absolute correction method of the track alignment machine that can be used.

[Technical Background of the Invention] A track straightening machine detects the height difference between the rails on a track,
Various methods are known for raising the track rail based on the detected value and correcting unevenness of the track rail.
The most common method is a 3-point straight line method in which the rail on one track is used as a reference rail.

That is, a wire serving as a reference line is stretched between the reference parts provided before and after the track straightening machine, and a detecting device is provided at the approximate center of the track straightening machine, and the contact between the filler and the wire causes the rail to be It detects the difference in height between the two. Also, these three points-
In the straight line method, instead of using a wire, the light from the light source installed in the front reference section is used as the reference line, the filler of the detection device is changed to a slitter, and the rear reference section is changed to the receiver, and the light from the light source is used as the reference line. There is also a device that performs alignment work by irradiating the light receiver of the rear reference part through the slitter so that the front and rear reference parts and the slitter are aligned in a straight line.

These three-point-straight line methods will be explained by taking the wire method as an example with reference to FIG.

When working on the rail 1 of the track between two points AB using the 3-point-straight line method, the straightening work has already been completed at point A, which is the rear reference point, and the track straightening machine 2 is installed at point A. A rear reference device 3 provided at the rear is located. The reference device 3 has wheels running on the rails 1 of the track at its lower part, and a spirit level and a support are provided on the bogie supported by the wheels. One end of the wire 4 is fixed to constitute a rear reference part. On the other hand, 3
Point B, which is the front reference point of the point-straight line method, is on the rail of the unstraightened track, and the front reference device 5 provided at the front of the track straightening machine 2 is located here.

The front reference device 5 has the same configuration as the rear reference device 3, and the other end of the wire 4 is attached to the upper end of the column of the front reference device 5, forming a front reference portion. .

A trajectory correction detecting device 6 is located at a correction point C, which is approximately midway between the ΔB and both positions, and is used for actually IMing the correction work. This detection device 6 includes a filler that contacts the reference wire A7 at the upper end of a column supported by wheels running on the rails of the track. Here, from the wheels running on the rails of the track, to the wire attachment position (front reference part) at the upper end of the column of the front reference device 5, to the wire attachment position (rear reference part) of the rear reference device 3, and to the filler of the detection device 6. The heights of are set in advance to be the same height H'.

In the vicinity of this detection device 6, there are provided a rail lifting device 7 for lifting the rails and sleepers of the track to the correct position, and a tamping device 9 for pushing and tamping ballast below the lifted sleepers 8.

When performing straightening work using such a track straightening machine 2,
If the position of the track rail at straightening point C is at the appropriate height, the height of the upper surface of the track rail head and the wire attachment position (reference part) at the front and rear reference points AB, and the height of the detection device part. Since the height from the upper surface of the rail head of the track to the filler is set in advance to be equal to H', the filler of the detection device 6 is spaced apart from the reference wire, and the rail main device 7 does not operate in response to the detection signal. No straightening work will be carried out.

However, when the alignment point C is lower than the line connecting the front and rear reference points AB, the filler contacts the reference wire and operates the rail control W9 according to the signal from the filler, keeping the track rail straight. I'm going to raise it. Then, the filler also gradually moves upward and separates from the wire serving as the reference line. Then, upon receiving the detection signal, the rail lifting main device 7 stops lifting the rail 1. Thereafter, the tamping device tamps the ballast below the sleeper 8, thereby completing the straightening of the rail at the straightening point C.

From now on, similar work will be carried out one after another while moving the track straightening machine forward.

[Problems with Background Art] However, the above-mentioned conventional relative straightening method has the following drawbacks.

That is, in the conventional relative straightening method, the previous reference point B is always on the unregistered rail, and the unregistered point B and the adjusted post-reference point A are set at a height of H-, and the adjusted point C is Then, the reference point A is moved to the adjustment point C and the same adjustment is performed, so the rails of the track are only relatively adjusted. Therefore, in such relative alignment work, if work is carried out one after another based on the unaligned previous reference point, even if the rails of the track concerned are partially aligned smoothly, However, the overall problem was that considerable unevenness remained.

In order to improve the shortcomings of this relative alignment method, absolute alignment work is required to align the rails of the track to the correct design position.

In order to perform absolute straightening work using this 3-point-straight line method, the difference in height of the track rails must be measured in advance using a surveying machine such as a transit, and the amount of correction must be determined based on the measured values. Ta. Then, write this amount of correction on the sleeper etc. in advance, and when the front reference device installed at the front of the track straightening machine comes to this part, manually raise or lower the front reference device by one step according to the amount of correction. was.

However, although this method of absolute correction of the front reference part using transits can theoretically align the rails of the track to the designed position without any irregularities, as mentioned above, surveying work using transits etc. is indispensable. A great deal of labor and time is required to manually move the front reference device up and down for each sleeper.

Furthermore, in the past, the front reference point was raised and lowered by a worker manually operating a vernier dial or the like to operate the raising and lowering mechanism according to the measured correction amount. There is also the disadvantage that alignment work is required by personnel, making correction work on the track straightening machine extremely complicated. In addition, in manual operations like this, the scale on the dial is checked visually, so reading errors are inevitable.
It was also inferior in terms of accuracy.

[Object of the Invention] An object of the present invention is to easily change a track straightening machine using a relative straightening method to an absolute straightening method as described above, and to provide a track straightening machine which has been proposed in view of the shortcomings of the conventional absolute straightening method. The purpose is to be able to easily and accurately set the height of the reference line by correcting the height of the front reference part in the 3-point-line method, and to eliminate the work of correcting the front reference part. The purpose of the present invention is to provide an absolute correction method for an automated track adjustment machine.

[Summary of the Invention] The absolute correction method for a track straightening machine according to the present invention provides a sighting device consisting of a plurality of optical N elements on a front reference part on an unaligned rail, while the track straightening work progresses. Set an absolute reference point at a high point on the reference rail a predetermined distance in front of the direction, install a laser oscillator at this absolute reference point, set the emission point of this laser oscillator to the required height, and then A laser beam is emitted, and the front reference section is automatically raised and lowered along with the aiming point so that the potential difference between the upper and lower photoelectric elements around the aiming point that receives the laser beam is equalized, and the reference line is set at a predetermined height. This allows the orbit to be adjusted using this absolute standard.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be specifically described based on FIG. 2.

An absolute reference point is set in advance at a high point on the reference rail in front of the front reference point B of the rail of the track to be aligned.

This absolute reference point is located on the rail of the uncorrected track, and the distance from the previous reference point B is set to a distance that the laser beam can effectively reach, for example, 80 to 100 m.

A reference wheel 12 equipped with a high-output laser oscillator 11 is placed on this absolute reference point. This standard car 12
For example, as shown in FIGS. 3 and 4, a support frame 15 is fixed on a truck 14 having wheels 13 running on the rails of a track, and a laser oscillator lifting mechanism 16 is mounted on this support frame 15.
, horizontal rotation mechanism 17, and elevation rotation mechanism 1
8, the laser oscillator 11 is provided.

The reference vehicle 12 is provided with a self-propelled driving device 19, the laser oscillator 11, and an operation panel 20 for controlling the mechanisms 15 to 18. Further, when performing radio control or the like as necessary, a receiving device may be provided to control each mechanism 15 to 18.

On the other hand, the front reference device 5 provided at the front of the track straightening machine 2 is arranged on the front quasi-point B, which is the rail of the unstraightened track. As shown in FIG. 5.6, for example, the front reference device 5 has a vertical spindle 23 built into the upper part of the left and right pillars 22 supported by the underframe 21 of the track straightening machine 2 so as to be able to rise and fall. At the upper end of the upper and lower spindles 23 of the reference bar 2
4 was supported. A motor 25 that is a drive source for the upper and lower spindles 23 is installed on the underframe 21, and a drive shaft 26 extending from the motor 25 is connected to the input side of a bevel gear 32 of a spindle lifting mechanism 31 provided on the support 22. There is. This spindle raising/lowering mechanism 31 is composed of a bevel gear 32 and a drive shaft 33 whose one end and the other end are directly connected to the spindle 23 on the output side of the bevel gear.

Left and right reference wires 4 (reference lines) are attached to the reference bar 24 via rollers 34 so as to be located directly above the rails, and their ends are attached to the center of the reference bar 24. Connected to V tension cylinder 27. Reference bar 24
Roller 34 (front reference part) of the left and right wire attachment parts in
A sight 28 is provided below each of the two.

In the center of the sight 28, aiming points 29 are provided at preset intervals.On the surface of the sight 28, two A column of photoelectric elements 30 is provided.These photoelectric elements 30 are
- For example, consisting of solar cells, arranged at equal intervals with the same dimensions. These photoelectric elements 30 are connected to a driving motor for raising and lowering the front reference section via a servo controller. This servo controller drives the motor in the upward direction of the reference part when the electromotive force of the upper photoelectric element 30a is larger than the electromotive force of the lower photoelectric element 30b, and vice versa. The motor is driven in the downward direction of the reference part, and the motor is stopped when the potential difference between the upper and lower sides matches.

Further, the output from these photoelectric elements is the reference vehicle 12.
It is also possible to connect to the horizontal rotation mechanism 17 using a wireless device or the like. That is, when the potential difference between the left and right photoelectric elements 30c and 30d across the reference point 29 matches,
When the rotation mechanism 17 stops and there is a potential difference between the left and right photoelectric elements, the rotation mechanism 17 is operated in that direction and the laser oscillator 11 is emitted until the central aiming point 29 and the irradiation point coincide. It rotates the direction.

Note that the front reference device 5 provided with this sight 28 has wheels 35 running on the rails of the track at its lower part, like the previous device. Furthermore, the rear reference device, detection device, lifting device, tamping device, etc. provided in the track straightening machine 2 have the same configuration as the conventional track straightening machine.

In the present invention, the height of the reference line is set to a predetermined value using the reference vehicle and front reference device having the above-described configuration as follows.

First, from the laser oscillator 11 provided on the upper part of the reference wheel 12 located at the absolute reference point, toward the sight 28 provided on the front reference device at the front of the track straightening machine 2, oscillates a laser beam.

Then, the laser beam travels straight and reaches the front reference part @5 located on the front quasi point B.

At this time, if the position of the rail of the track at the front reference point B is lower than the position of the absolute reference point, the laser beam R is installed in the front reference device 5 as shown in FIG. 7(A). The light is irradiated above the aiming point 29 of a certain sighting device. Then, the electromotive force of the photoelectric element 30a at the upper stage of the aiming point 29 becomes larger than that at the lower stage, so the servo controller connected to the aiming device receives a signal to rotate the drive motor 25 and raise the upper and lower spindles 23. is input. As a result, the motor 25 is driven, and the reference bar 24 on the upper part of the upper and lower spindles is raised, and at the same time, the roller 34 (front reference part) of the wire attachment part provided on the reference bar 24 is also raised. When the sight 28 rises as the reference part rises, the aim point 29 rises, and while there is a potential difference between the upper and lower elements,
The motor 25 continues to operate in the upward direction, but when the potential difference matches, that is, the irradiation point and the aiming point match as shown in FIG. 7(B), the motor 25 stops. As a result, the reference wire is set at a predetermined height above the laser beam.

The machine performs the work of straightening the rail position of the track at the straightening point C based on the absolutely corrected reference wire 17 in the same way as the conventional track straightening machine shown in Figure 1. For example, the rails of that part of the track are absolutely aligned.

Then, the track straightening machine 2 is run to the next sleeper, and the same operation is carried out for each sleeper. After the straightening point C approaches the absolute reference point, the reference car 12 is moved again. The laser beam is advanced by the distance traveled by the laser beam, a new absolute reference point is set at that position, and the same adjustment work as described above is repeated.

Therefore, compared to the conventional method in which the amount of correction of the previous reference point is entered for each sleeper and the previous reference point is manually adjusted up or down during operation, the workability is greatly improved.

In addition, in places where the track rail is curved, or where the absolute reference point and the front reference point are vertical curves with an inclination, the laser oscillator is rotated left and right or in the elevation direction. When changing the rail, move the sight to the left or right so that the laser beam is irradiated onto the sight. At this time, if the rail is curved, the laser beam I
The irradiation point of R is shifted to the left and right of the aiming point as shown in FIG. 7(C). As a result, a difference occurs in the electromotive forces of the photoelectric elements arranged on the left and right sides of the aiming point, so the rotation mechanism is operated to rotate the emission point of the laser oscillator until the electromotive forces of both elements match. In this way, even if the track straightening machine continues to work and reaches a curved part of the rail, the laser firing point will automatically follow the curvature of the rail, so the work on the reference vehicle side will also be automated. There is an advantage that

[Effects of the Invention] As described above, the present invention uses a laser beam having characteristics of high directivity and low attenuation as a means for setting the height of the reference line, and also allows the laser oscillator to be moved up and down and rotated.・Since it is movable, there is no need for surveying to determine correction values for each sleeper, and the reference vehicle can be placed much further forward than before, reducing the number of connection points for work. Moreover, the operation of raising and lowering the front reference section is automatically performed.

As a result, absolute rail alignment work can be carried out easily and accurately, and a rail track with no irregularities that meets the design values can be extremely easily obtained, and the work speed can be increased. Moreover, the effects are great, such as the ability to easily change the conventional relative correction type track straightening machine to an absolute correction type one.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing the conventional relative track adjustment method, Fig. 2 is a schematic diagram showing the principle of the absolute correction method of the front reference part of the present invention, and Fig. 3 is a schematic diagram showing the reference vehicle used in the present invention. A side view of an example, FIG. 4 is a front view of FIG. 3, FIG. 5 is a side view of the front reference device, FIG. 6 is a front view of FIG. 5, and FIGS. 7 (A) to (C').
FIG. 2 is a front view showing the positional relationship between a photoelectric element on the sight and a laser beam. A... Shun reference point, B... Front reference point, C... Adjustment point, D... Absolute reference point, 1... Track rail, 2...
・Track straightening machine, 3... Rear reference device, 4... Reference wire A7 (reference line), 5... Front reference device, 6... Detection device, 7... Lifting device, 8 ... sleeper, 9 ... tamping device, 11 ... laser oscillator, 12 ... reference car, 13 ... wheel, 14 ... trolley, 15 ... support frame, 16 ... laser Oscillator lifting mechanism 17... Horizontal rotation mechanism, 18... Elevation angle rotation mechanism, 19... Drive device, 20... Operation panel, 21... Underframe, 22... Support column, 23...・Upper and lower spindle, 24 ・Reference bar, 2
5... Motor, 26... Drive shaft, 27... Cylinder, 28... Sighting device, 29... Aiming point, 30... Photoelectric element, 31... Spindle lifting mechanism. wE 3 Figure! 4E Figure 7 (A) Figure 7 (B) Figure 7 (C) Continued from page 1 0 Inventor Akatsuki Hara Yoko r Field P (100 Hata, Kasama-cho, Totsuka-ku, Ichito Shibaura Manufacturing Co., Ltd. Ofuna Eco Co., Ltd.)

Claims (2)

[Claims] (1) A reference line was established between the front reference part set on the front reference point of the track rail and the rear reference part set on the rear reference point, and was established at the alignment point between the front and rear reference points. A three-point straight line type track straightening machine uses a detection device to detect the difference in height between the reference line and the track rail at the straightening point, and performs climbing and tamping work on the track rail based on the detected value. A reference car equipped with a laser oscillator is placed at the absolute reference point in front of the track straightening machine, and a sighting device is installed at the front reference part of the track straightening machine to receive the laser beam from the laser oscillator. Photoelectric elements are placed above and below the aiming point of the sight, and a laser beam is irradiated from the laser oscillator toward the front reference part. An absolute correction method for track straightening, which is characterized by raising and lowering parts to absolutely straighten the rails of the track. (2) Place photoelectric elements on the left and right of the aiming point of the sight, so that the potential difference between the left and right photoelectric elements that receive the laser beam matches.
An absolute correction method for a track straightening machine according to claim 1, wherein the emission point of a laser oscillator of a reference vehicle is rotated left and right.