JPH0132327B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rail track straightening method and device, and in particular to a rail track straightening method and device, and particularly to a rail track straightening method and device. A method for measuring the curvature of a rail before straightening based on the measured value, moving the rail in the width direction according to this measurement value, and straightening the rail to match the theoretical curvature. Related to equipment.

[Prior Art] Straightening (also referred to as lining) of a rail track is a process of moving and correcting a laid rail in the width direction so that the rail matches the theoretical (designed) curvature. In this case, the premise of the straightening work is to accurately measure how much the curvature of the actually laid rail before straightening differs from the theoretical curvature.

Conventionally, as a method of measuring the curvature of the rail before straightening, as shown in Fig. 1, a circular arc S of radius R is used.
When a string J of length l is stretched over the string J
Distance V (generally called vertical distance, especially l = 10 m
is called Masaya) is V≒(a・b)/
The Masaya method, which utilizes the relationship expressed by 2R (or V≒l ² /8R in the case of a=b), is mainly adopted. That is, in this Masaya method, the arc S indicates the rail before straightening, the chord J is the reference line (reference bar) stretched between two points on the rail, and the curve at the inspection point j on the reference line is If the rail is moved until the versine value V matches the versine value of the rail with the theoretical curvature (1/R), the rail will be adjusted to the theoretical curvature.

[Problems to be Solved by the Invention] By the way, when using such a masaya method, the problem is how accurate is the masaya value of the rail before straightening measured at the inspection point j? The question is whether it is. In other words, since the rail straightening work is carried out at inspection point j based on the positive arrow value V,
The rail ahead of inspection point j is in an unaligned state, and the front end A of the reference line (chord J), which is the reference for the versine value V, is always located on the unaligned rail S'. . As a result, the difference between the point on the unaligned rail S' where the front end A of the reference line is actually located and the point where the front end A would be located if the straightened rail S was extended with that curvature. Depending on the size, as shown in Figure 2,
There was a possibility that a large error in the positive arrow value V at the measurement point j would occur. This also applies to the rear end B of the reference point (chord J); if the rail is moved for alignment at the inspection point j, the movement of the rail at that part will also affect the rear end B. Even for rails with regular corners, the curvature sometimes deviated from the theoretical value.

SUMMARY OF THE INVENTION An object of the present invention is to provide a new street straightening method and apparatus that solve the problems of the prior art as described above.

[Means for Solving the Problems] In order to achieve the above object, in the present invention, a front masaya measuring bar is passed between two points on an unaligned rail, and a front masaya measuring bar on this front masaya measuring bar is The masaya value at the front reference point is measured based on the deviation between the reference point and the rail, and a reference value is measured between the front reference point on the front masaya measurement bar and the rear reference point set on the adjusted rail side. Stretch the line, measure the deviation between the reference line and the rail at the inspection point set on this reference line, and use the measured masaya value determined based on this deviation as the front masaya value using the front masaya measurement bar. The correction amount is determined by comparing this corrected inspection positive value with the theoretical positive value at which the rail should be corrected, and the rail straightening device The system was configured to operate to align the rails.

[Operation] In the present invention having the above configuration,
Considering that the rail on which the front end of the reference line is located is unaligned, the versus value of this unaligned rail is measured with the front versine measuring bar, and the alignment point (inspection point) is In this step, the versine value between the reference line and the rail is measured, the verse value at this measurement point is corrected based on the verse value at the front end of the reference line, and this corrected verse value is combined with the theoretical rail value. By aligning the rail so that it matches the masaya value, even if the curvature of the unaligned part is different from the theoretical rail curvature, the corrected part will be accurate to the theoretical value. It is possible to perform proper adjustment work.

[Examples] Hereinafter, the present invention will be specifically described based on illustrated examples.

3 and 4 show an embodiment in which the street straightening device according to the present invention is attached to a track straightening machine, and in the figures, reference numeral T is the track straightening machine and S' is a rail to be straightened. J is a reference line in the straightening device of the present invention, and this reference line J extends from the front end to the rear end of the track straightening machine, and is independent of the straightening machine in the width direction of the rail S'. and move. The front reference point A of this reference line J is attached to the center of the front masaya measurement bar 1 provided in front of the track straightening machine T. The front end of the front masaya measuring bar 1 is pivotally connected to the center of the front reference truck 2 via a shaft 3, while the rear end is pivotally attached to the center of the rear reference truck 4 via a shaft 5. In addition, the front and rear reference carts 2 and 4 are equipped with wheels 6 provided at the front and rear thereof.
The train travels on the rail S′ by A front masaya measurement cart 7 is disposed below the front reference point A on the front masaya measurement bar 1. This measuring cart 7 runs on the rail S' with wheels 8, and is attached to the front masaya measuring bar 1 so that it can move only in the width direction of the rail. A potentiometer PT is connected between this measuring cart 7 and the front reference point A of the front masaya measuring bar 1.
is provided to measure the deviation between the measuring cart 7 and the front reference point A. Note that when the length of the front masaya measurement bar 1 is not 10 m, the deviation between the measuring cart 7 and the front reference point A is not the versaign value, but the front reference point can be determined using a computer based on this deviation. Masaya value V ₁ between unaligned rail S′ and front masaya measurement bar 1 at point A
can be calculated.

On the other hand, the rear reference point B, which is the rear end of the reference line J, is attached to the center of the rear masaya measuring bar 9 provided at the rear of the track straightening machine T. The rear masaya measuring bar 9 is attached so as to span between a front reference truck 10 and a rear reference truck 11 provided before and after the rear masaya measuring bar 9. The front and rear reference carts 10 and 11 run on the straightened rails S by wheels 12 provided on each cart. In front of the rear reference point B, a rear masaya measurement trolley 13 is arranged to measure the masaya value of the rear masaya measurement bar 9 and the straightened rail S. The rear masaya measurement cart 13 also always maintains a fixed position in the longitudinal direction relative to the rear masaya measurement bar 9, but can move away from the rear masaya measurement bar 9 in the width direction of the rail. Furthermore, a potentiometer PT is provided between the measuring cart 13 and the rear masaya measuring bar 9 to measure the positional deviation between the two. This amount of deviation is 10m when the rear Masaya measuring bar 9 is
If it is not, it is not the positive value, so by using a computer, the rear reference point B can be calculated from this deviation amount.
The positive arrow value V ₂ at can be found.

Note that the rear Masaya measurement trolley 13 can also be provided directly below the rear reference point B, but in this embodiment, it is also used as the trolley of the rear reference device t of the leveling device installed in the track straightening machine T. By doing so, the rear reference point B was set slightly in front of it.

An inspection point j for the deviation between the reference line J and the unaligned rail S' is set in the middle of the reference line J, and this inspection point j
An inspection cart 15 supported by wheels 14 on a rail S' is disposed below. This inspection trolley 1
5 is provided with a feeler 16 for alignment including a potentiometer PT, which measures the deviation between the inspection point j of the reference line J and the inspection cart 15. This amount of deviation at inspection point j is also not a versine value when the reference line J is not 10 m, but by using a computer, it is possible to calculate the versus value V ₅ at inspection point j from this amount of deviation. can.

In this embodiment, the inspection cart 15 also serves as the cart of the inspection device t' for leveling adjustment provided in the track straightening machine T, and is Installed so that it can move only in the width direction. Further, in front of this inspection cart 15, a rail S' straightening device 17 is provided. This straightening device 17 moves the rail S' by lifting it or pushing it sideways, and includes a straightening member 18 that removably engages with the rail S' and a straightening member 18 that moves the straightening member 18 in the width direction of the rail. A fluid cylinder 19 for movement is provided.

Each measuring device having such a configuration is connected to a street correction computer 20, as shown in FIG. That is, the computer 20 is connected to each measuring device (potentiometer) provided at the front reference point A, the rear reference point B, and the inspection point j, and the rails S, S' measured by each measuring device are connected to the computer 20. The deviation is sent to the computer 20, and the computer 20 calculates the
The positive arrow values V ₁ , V ₂ , and V ₅ are calculated from this shift.
Further, a versus setting device 21 is connected to the computer 20, and a theoretical versing value V ₄ at the adjustment point (inspection point) is given to this versing setting device 21.
The computer 20 is provided with a display device 22,
The display device 22 displays the versine values V ₁ , V ₂ , V 5 at each of the measurement points calculated by the computer 20, the versus value V ₄ set in the setting device 21, and the versus value V ₄ set in the setting device 21, and The calculated rail adjustment amount y is displayed.

Further, the computer 20 is connected to a drive device 23 (for example, a hydraulic device) for operating the fluid cylinder 19 of the rail straightening device 17 by a predetermined amount based on the amount of straightening. Reference numeral 24 denotes a correction amount adjustment device, which is used to set in advance what percentage of the calculated correction amount y the command to give to the drive device 23 should be. This type of adjustment device is provided because the rails are often moved with little effort. Further, 25 is a work progress distance measuring device provided on the rear Masaya measuring cart 1, which is also connected to the computer 20.

The straightening device according to this embodiment has the above-mentioned configuration.Next, the operation of the device and the straightening method according to the present invention will be explained.

FIG. 6 is a skeletal plan view when the straightening device is located on a curved portion of the rail as shown in FIGS. 3 and 4, and is a diagram of the principle of the straightening method of the present invention.

In the figure, the rail S' in front of the inspection point j is not straightened, and the curvature of the inspection point j and the front reference point A is unknown. Therefore, in the present invention, the deviation between the front reference point A and the rail is measured at the front reference point A, and the versine value V ₁ at the front reference point A is determined from this deviation.
Calculate. In this case, it is also possible to measure the amount of deviation, which is the basis of the front versine value, by directly bringing the front and rear ends of the front versine measurement bar 1 into contact with the rail S'; however, in this embodiment, Front Masaya measurement bar 1
By pivoting the front and rear ends of the front and rear ends of the bar to the front and rear reference carts 2 and 4, the deviation between the front reference point A and the rail can be determined based on the average value of the curvature of the rail at the front and rear ends of the front masaya measuring bar 1, i.e. The front masaya value is calculated based on this. In order to actually measure the amount of deviation that is the basis of the front masaya value, the front masaya measurement cart 7 running on the rail S′ and the front masaya measurement bar 1 stretched in a straight line must be Measure the deviation from reference point A using potentiometer PT. The amount of deviation measured in this way is sent from the potentiometer PT to the computer 20, and in this computer 20 it is converted to the case where the front versine measurement bar 1 is 10 m, and the front versine value V ₁ is obtained. It will be done.

On the other hand, also at the rear reference point B of the reference line J, the amount of deviation between the rear reference point B on the rear masaya measuring bar 9 and the measuring cart 13 running on the rail S is determined by the potentiometer.
From this amount of deviation measured by the PT and sent to the computer 20, the rear versine value V ₂ is calculated.
In this case, since the rail S at the rear reference point B has been straightened, the curvature of the rail rarely changes locally like the front reference point A. Therefore, in this embodiment, the reference carts 10 and 11 provided before and after the rear masaya measuring bar 9 are the same as the front masaya measuring bar 1.
Instead of the type that calculates the average value as shown in the figure, we adopted one in which the front and rear ends of the rear masaya measurement bar 9 are positioned directly on the rail.

Furthermore, at the inspection point j set at the center of the reference line J, the amount of deviation between the inspection point j and the inspection trolley 15 running on the rail S' is measured by the potentiometer PT and sent to the computer 20. and the computer 20 calculates the positive arrow value V ₅ at the inspection point j.
is calculated. This positive arrow value V ₅ is between the curvature of the straightened rail where the front reference point A of the reference line J is located on the unstraightened rail, and the curvature of the straightened rail where the rear reference point B is located and the theoretical rail curvature. Because there is some error in
The versus value corresponding to the actual curvature of the rail S′ at the inspection point j (that is, the versus value obtained at the inspection point j when the straightened rail is extended to the previous reference point A with that curvature) and It doesn't match.

Therefore, in the computer 20, this measured versus value V ₅ is corrected according to the versus values V ₁ and V ₂ at the front and rear reference points A and B to correspond to the actual curvature of the measurement point j. The versine value is obtained, and the rail adjustment amount y is obtained from the corrected measured versine value and the set versine value _V4 . That is, the adjustment amount y is determined by the following equation, for example.

y = (V ₃ + V ₄ )/2 - V ₅ However, V ₃ = (V ₁ + V ₂ )/2 In this way, in this embodiment, the versus value V ₄ set in the setting device 21 and the inspection point The positive arrow value obtained at j is V ₅
Without calculating the adjustment amount y by directly comparing
The front versine value V ₁ and the rear versine value obtained at the reference points A and B before and after these set versine value V 4 and measured verse value V _{5 are} added.
Since the amount of straightening is obtained by taking V ₂ into consideration, there is an advantage that accurate straightening work can be performed taking into account the curvature of the unleveled rail.

In addition, in actual adjustment, this adjustment amount y
According to the command from the adjustment amount adjustment device 24,
Since it is determined by what percentage of the correction amount y the driving device 23 should be driven, even more fine-grained correction is possible.

[Effects of the Invention] As described above, the present invention obtains the versine value at the front reference point on the unaligned rail, corrects the versine value obtained at the inspection point based on this, and Since the true value of the actual rail is calculated at , the measurement error caused by the unaligned rail is eliminated. As a result, the amount of rail alignment can be determined correctly, which has the effect of allowing accurate alignment work to be performed.

In addition, as in the illustrated embodiment, if the versus value of the straightened rail at the rear reference point is also calculated, and this is added to correct the versus value at the inspection point, a more accurate correction amount can be obtained. be able to.

In addition, the device of the present invention has reference points before and after the reference line attached to the front and rear versine measurement bars, and the measurement bar can calculate the verse value of the front and rear rails, and the reference line can be used to measure the alignment points. Since the calculation of the versine value of the rail is carried out continuously using one device, it is possible to simplify the inspection and adjustment work.

[Brief explanation of drawings]

Figures 1 and 2 are principle diagrams of the conventional straightening method using the Masaya method, Figures 3a and b are plan views showing an example of the straightening device according to the present invention, and Figures 4a and b are side views of the same. 5 is a connection diagram showing the relationship between each measuring device and a computer in the apparatus of the present invention, and FIG. 6 is a principle diagram showing the adjustment method according to the present invention. S, S'...Rail, T...Track straightening machine, J...
Reference line, A...front reference point, B...rear reference point, 1...
...Front Masaya measurement bar, 2...Front reference trolley, 4...Rear reference trolley, 7...Front Masaya measurement trolley, 9...Rear Masaya measurement bar, 10...Front reference trolley, 11...Rear Reference trolley, 13... Rear Masaya measurement trolley, 15... Inspection trolley, 16... Adjustment feeler, 17... Adjustment device, 20... Computer, 21... Masaya setting device, 22... Display device, 23... drive device.

Claims (1)

[Scope of Claims] 1. A front masaya measurement bar is stretched between two points on an unaligned rail, and the masaya at the front reference point is determined from the deviation between the front reference point on the front versine measurement bar and the rail. At the same time as measuring the value, a reference line is stretched between the front reference point on the front Masaya measurement bar and the rear reference point set on the adjusted rail side, and the reference line is set at the inspection point set on this reference line. The deviation between the line and the rail is measured, and the measured versine value obtained based on this deviation is corrected based on the versine value from the front versine measurement bar, and this corrected versine value and the rail are aligned. The amount of adjustment is determined by comparing the value with the theoretical positive arrow value to be corrected, and the rail adjustment device is operated according to this amount of adjustment to perform alignment of the rail. The adjustment method is as follows. 2. To set the rear reference point on the straightened rail side, cross the rear masaya measurement bar between two points on the straightened rail, then set the rear reference point on the masaya measurement bar, and then The versus value at the rear reference point is measured from the deviation between the arrow measurement bar and the calibrated rail, and the measured versa value is then corrected based on the versus value as well. Correct method. 3. Support the front and rear ends of the front masaya measurement bar via the shafts on the front and rear reference carts, attach the front reference point of the reference line to this front masaya measurement bar, and attach the front reference point of the reference line to this front masaya measurement bar. A front masaya measuring trolley that is movable only in the width direction is provided, and a device is installed between this measuring trolley and the measuring bar to detect the deviation between the two, while the reference point behind the reference line is located at the front masaya measuring bar. It is attached to a reference trolley different from the reference trolley, and furthermore, an inspection point is provided in the middle of the reference line, and an inspection trolley that can move only in the width direction of the rail is provided with respect to this inspection point. A device is provided between the measuring cart and the reference line to measure the deviation between the two, and a correction device for moving the rail in the width direction is provided near the measuring point. straightening device. 4. When attaching the rear reference point to the reference truck, a rear masaya measuring bar is provided between the two front and rear reference trucks, and then the rear reference point is attached to the masaya measuring bar.A straightening device as described in item 3. 5 The rear masaya measuring bar has a rear masaya measuring trolley that is movable only in its width direction, and a device is provided between the measuring bar and this measuring trolley to detect a deviation between the two. Street straightening device. 6 The front and rear reference bogies that support the front masaya measurement bar have front and rear wheels at the pivot point of the measurement bar, and the third, fourth or Adjustment device as described in Section 5.