JPS6160921B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a leveling inspection method and a leveling device for a track straightening machine.

Generally, when adjusting a track, height adjustment is performed to correct irregularities in the longitudinal direction of the right or left rail, and level adjustment is performed to correct the difference in height between the left and right rails to a predetermined value. This is collectively called leveling correction and is carried out by the leveling device of the track correction machine. A track straightening machine automatically performs leveling while running on the track, and then fills the underside of the sleepers with ballast to maintain the track height. It is equipped with a rail lifting device (also called a lifting device) and a tamping device in addition to a measuring device (simply referred to as an inspection device).
The rail lifting device and tamping device are controlled based on the measurement results of the measuring device to straighten the track.

Various inspection devices for this type of track straightening machine have been proposed in the past, and a typical one is one in which reference parts are provided at the front and rear of the track straightening machine, and a reference line is placed between these reference parts. A device is known that measures the height or level of a rail using a detecting section that is formed between a front reference section and a rear reference section, and has a reference line sensing means, and a level. An example of this type of measuring device is one in which unevenness in the longitudinal direction of the rail is measured by the displacement of a reference line sensing means with respect to the reference line, and the difference in height between the left and right rails is measured with a spirit level placed directly on the detection part. However, when adjusting the level, the response speed of the spirit level becomes a problem, and if the response speed is increased, it becomes unstable due to the vibration of the tamping device, and if the response speed is decreased, it is not only impossible to lift the left and right rails at the same time. The disadvantage is that the detection level includes an error. Another example that can be detected without being affected by the vibrations of the tamping device is a reference level device that is always held horizontally, for example, at the rear of the track straightener, away from the tamping device and with relatively little vibration. The horizontal level of this reference level device is transmitted to the detection unit using a reference bar, etc., and the displacement of the horizontal lever provided on the reference bar and the left or right rail (level side rail) in the detection unit is measured using a potentiometer, etc. There is a measuring device that detects the noise by moving the sensor, but it has the disadvantage that the entire device is complicated and cumulative errors occur due to misalignment of various parts. In addition, as another example, a level is placed at the rear of the measuring device, that is, at the rear reference part, and the reference line emitted from the front reference part (when the light beam is used as the reference line) and the rear reference part on the left and right rails are separated. There is also a method of connecting the points to form a triangular plane and measuring the reference point of the rear reference part on the left and right rails with a spirit level to keep it level at all times, but when correcting the rear reference point, it is necessary to use a spirit level. Since the level is swung around to make corrections while moving, it is difficult to stabilize, and this type of device has drawbacks such as being complicated. Also,
There is also a type that has a front reference part and a rear reference part above the left and right rails, and connects the front reference part and the rear reference part with a reference line and corrects the left and right reference height of the front reference part to a predetermined cant ( At this time, the rear reference part is on the leveled rail), not only does this require one more operator to manually perform this correction, but also when there is a leveling error on the leveled rail. This error enters the detection unit again and requires time to correct, resulting in disadvantages such as poor efficiency.

The present invention was made in order to eliminate the above-mentioned drawbacks that conventional leveling devices of track straightening machines have in level detection, and includes means for forming reference lines above the left and right rails and sensing each reference line. In the track straightening machine, a front reference part is provided at the front part of the track straightening machine and a rear reference part is provided at the rear part,
The height, that is, the level, of the left or right rail relative to the right or left rail in the front reference part and the rear reference part is detected, and the reference line above the level side rail is changed to the reference line above the high and low side rails depending on the detected level. After correcting the position of the sensing means provided between the front reference part and the rear reference part with respect to the reference line above the level side rail based on this calculator, the height of the level side rail and the level The present invention provides a leveling inspection method characterized by correcting. Furthermore, the present invention provides a first level in the front reference part and a second level in the rear reference part in the track straightening machine, and the output of the first level and the second level.
an arithmetic unit that calculates the slope of a reference line above the level side rail with respect to a reference line above the height side rail based on the output of the level gauge; and a sensor that senses the reference line above the level side rail in response to the output of the arithmetic unit. and a corrector for correcting the position of the means.

According to the present invention, the level is disposed at the front reference part and the rear reference part, which are hardly affected by vibrations caused by the tamping device, and the level itself does not move during inspection, so the detected level is stable. Accurate. Further, since the reference line and sensing means used for height detection can be used as they are for level detection, the configuration of the measuring device is simplified. Furthermore, there is no need to mechanically form a plane for level detection, and therefore there is no need to connect the detection section and the rear reference section, so in this sense as well, the structure of the device is simplified and the inspection operation is simplified. . Furthermore, since an electrical arithmetic circuit is used to calculate the detection level, accurate results can be obtained quickly, and as a result, it is advantageous in that the left and right rails can be lifted and leveling adjustment can be performed with almost no delay. .

Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a schematic layout diagram of a track straightening machine equipped with an embodiment of leveling adjustment according to the present invention, FIG. 2 is a schematic perspective view of an inspection device of the leveling device, and FIG. 3 is a diagram according to the present invention. FIG. 4, which is a diagram for explaining the principle of the leveling inspection method, is a block diagram showing the main parts of the leveling device. In FIG. 1, the leveling device includes a rail lifting device 2 disposed approximately in the center of the main body 1a of the track straightening machine 1, a tamping device 3 disposed slightly behind the rail lifting device 2, and a tamping device 3 disposed slightly behind the rail lifting device 2. It is composed of a level measuring device 4. Of these, the rail lifting device 2 and the tamping device 3 are not essential parts of the present invention and are already well known, so their invention will be omitted.

The measuring device 4 of the leveling device according to the present invention is shown in particular detail in FIG. Referring to FIG. 2 together with FIG. 1, the inspection device 4 includes a front reference device 41 provided at the front of the track straightener 1 and a rear reference device 42 provided at the rear of the track straightener 1. and a detection device 43 provided approximately midway between the rail lifting device 2 and the tamping device 3. Front reference device 41
is a measuring wheel 41a rolling on rails 5a and 5b,
It has struts 41d and 41e extending upward from both ends of the trolley 41c supported by the strut 41b.
The movements of 1d and 41e are free in the vertical direction and restricted in the left-right and front-rear directions by a guide tube (not shown) fixed to the main body 1a. Post 41d,
A beam 41f is provided between both upper ends of 41e.
These supports 41d and 41e are swingably connected to the carriage 41c by pin joints or the like. A spirit level A is disposed approximately in the center of the cart 41c. The beam 41f is swingably attached to the columns 41d and 41e with pins, and the vertical drive section 6 is attached to the center thereof. This drive unit 6 includes a pillar 41
d, vertical adjuster 7a provided at the upper end of 41e,
7b are connected by rotating shafts 6a and 6b that drive the same, and the height of a reference line (to be described later) is simultaneously adjusted in the vertical direction on the left and right sides by the vertical drive unit 6 at the time of a gradient change section or a full slope. These vertical adjusters 7a, 7b have upwardly extending rods 8a, 8b attached to, for example, a screw shaft and a screw sleeve so as to be movable in the vertical direction. Bar 8
When the rotation shafts 6a, 6b are rotated by driving the vertical drive unit 6, a, 8b are moved upward or downward by vertical adjusters 7a, 7b. The upper ends of the rods 8a and 8b are swingably connected to each other by a connecting bar 41g via a pin (not shown). Therefore, when the truck 41c is tilted by the rails 5a and 5b, the connecting bar 41g is also tilted.

Next, the rear reference device 42 also controls the rails 5a, 5.
Supports 4 are swingably and laterally movably attached to both ends of a truck 42c supported by wheels 41a and 42b rolling on b, and extend upward.
2d and 42e, and a beam 42f is provided between both upper ends of the support columns 42d and 42e, and is swingably attached with a pin (not shown). In addition, the pillar 42d,
Like the columns 41d and 41e, the movement of 42e is free in the vertical direction and restricted in the left-right and front-rear directions by a guide tube (not shown) fixed to the main body 1a. A spirit level B is disposed approximately in the center of the cart 42c. A laterally movable reference beam 42i is attached to the beam 42f, and this reference beam 42
Reference points 42h and 42h' are provided at both ends of i. This reference beam 42i has reference points 42h, 42h' always aligned with the rails 5a, 5 by means of a lateral correction device 42g.
It has a structure that allows it to be moved directly above b. The lateral direction correction device 42g
This prevents the reference points 42h, 42h' from shifting directly above the rail even if the support columns 42d, 42e are moved laterally with respect to the trolley 42c by the guide tubes, since the reference points 42h, 42h' are shifted laterally with respect to the trolley 42c. . Note that the cart 42c and the reference beam 42i are configured to always have the same inclination.

Reference point 41 of connecting bar 41g of front reference device 41
Between the reference points 42h, 42h' of the reference beam 42i of the rear reference device 42, both rails 5a, 41h' are provided.
Two reference wires 10a, 1 are placed directly above the wire 5b.
0b is tensioned, and the tension of both wires is adjusted by the wire tension adjustment device 4 provided on the connecting bar 41g.
1i. Measuring wheels 41a, 41
The height from b to the reference points 41h, 41h' and the height from the wheels 42a, 42b to the reference points 42h, 42h' are determined when the vertical adjusters 7a, 7b are not moved other than at a gradient change section or during a total climb. When set to 0 point, it is kept at the same height.

Next, the detection device 43 is attached to a truck 43c supported by wheels 43a and 43b rolling on rails 5a and 5b, and to both sides of the truck 43c so as to be swingable and movable in the lateral direction, and extends upward. It has pillars 43d and 43e, and these pillars 43d,
A beam 43f is placed between both upper ends of 43e as a fulcrum 43g, 43
It is provided so as to be swingable via g′. Pillar 43
The movement of columns 41d, 41e and 43e
Similar to 2d and 42e, the guide tube (not shown) fixed to the main body 1a allows it to be freely moved up and down and restrained in the left and right and front and rear directions. Feelers 13a, 12b are installed from the beam 43f in a horizontally movable structure.
13b is suspended, and these feelers 13a, 13
b senses the wire when it comes into contact with the reference wires 10a and 10b, respectively. Both fillers 13
a, 13b are connected to feeler correctors 12a, 12b and a swingably mounted feeler leveler 14 to keep the feelers 13a, 13b horizontal at all times.
In this case, the front reference device 4
The reference points 41h, 41h' of No. 1 and the reference points 42h, 42h' of the rear reference device 42 are located directly above the rail, but since the detection device 43 is located between the front reference and the rear reference, the positions of the reference wire and the rail are shifted. Since height deviations occur due to the inclination of the left and right rails, correction is performed using a feeler level to keep the feeler level at all times to prevent height deviations. The beam 43f is suspended in a direction across the rails 5a and 5b by a lateral correction device 43h.
Similar to the lateral correction device 42g in the rear reference device 42 described above, h prevents the feelers 13a and 13b from shifting from directly above the rail due to the lateral shift of the main body 1a with respect to the bogie 43c at the rail curve section. .

The case where level detection is performed according to the present invention using a measuring device having such a configuration will be explained with reference to FIG. Let be the level side. The distance from the rear reference device 42 to the front reference device 41 is L, and the rear reference device 4
2 to the detection device 43, the output of the level A (front reference device) is a, and the output of the level B (rear reference device) is b, then the reference wire 10a at the position of the detection device 43 and Reference wire 10
The difference in height of b, that is, the filler correction amount d is expressed by the following equation.

d=(b-b-a/k)-c...(1) However, k=L/l, and c is the cant setting amount. Here, the levels A and B are configured to extract the difference in height between the left and right rails as a function of the angle that the straight line connecting both rails makes with respect to the horizontal plane, that is, the inclination angle, and for convenience, the output is a, It was expressed as b.

The above formula is based on the deviation of only the previous standard (a≠0, b=
0), deviation of only the rear reference (a=0, b≠0), deviation of both the front and rear standards (a≠0, b≠0), the positive and negative of a, b, a, The size of b,
This holds true regardless of the presence or absence of cant amount.

First, the rail 5a is set to the high and low sides using a leveling device equipped with a measuring device shown in FIG.
To correct the height of the rail 5a, the rail 5a is lifted by the lifting device 2 after the track alignment machine is stopped at the alignment position. As a result, the detection device 43 simultaneously stops the rail lifting operation at the moment when the lift feeler 13a separates from the reference wire 10a. In this case, the "0" point of the feeler corrector 12 is a position where the heights from the wheel 42a to the feeler 13a, from the wheel 42a to the reference point 42h, and from the wheel 41a to the reference point 41h are the same. Similarly, the rail 5b is lifted by the lifting device 2, and at the same time the height of the feeler 13b is adjusted by the feeler corrector 12b to the reference wire in the detection device 43 using the value d=(bb-a/k)-c. After correcting the height difference between the height of the reference wire 10a and the reference wire 10b to "0" point in the straight section of the track, the feeler 13b
The moment it leaves 0b, the rail lifting is stopped and the tamping device 3 tames the track bed.

Next, feeler correction according to the present invention will be explained with reference to FIG.

The feeler 13b is corrected by the feeler corrector 12b on the level side.The level of the front reference part is detected by the level A, and its output a, and the level of the rear reference part is detected by the level B, and its output b is sent to the calculator 20. is input, the difference b-a between both outputs a and b is calculated, and the deviation in the feeler portion of the reference wire 10a is calculated by multiplying by the reciprocal of the coefficient k set in advance. On the other hand, the cant setting amount c is inputted to the calculator 20 by the cant amount setting device 21, and the feeler correction value d
is calculated as in equation (1). In the flat section, the cant setting amount c is input as zero. This correction value d is supplied by the reference changeover switch 22 to the filler corrector 12a or filler corrector 12b selected in advance. In addition, the feeler corrector 12a on the high and low side
is always held at d=0. In this way, the feeler corrector 12b is raised by the feeler correction value d calculated by the inspection device, and the reference wire 10b is
After correcting the position of the feeler 13b, the rails 5a and 5b are lifted by the rail lifting device, and the left feeler 12b and the left reference wire 10 are lifted.
b, right feeler 13a and right reference wire 10
When a momentarily separates, a "leveling OK" signal is issued and the lifting operation is stopped. Note that the lifting operation is performed independently on the left and right sides. In this way, leveling work can be performed. The actual feeler correction work is done while the track straightening machine is moving between the sleepers, so by the time the rail lifting work is done, the feeler has already been corrected to the specified position, so there is a delay in the rail lifting work (especially lifting the left and right rails). do not have.

In the embodiment described above, a reference wire is used as the reference line and a feeler is used as the reference line sensing means, but instead of these, a light source is provided in the front reference part and the reference line is formed by the light beam emitted from this light source. However, the reference line sensing means can also be constituted by a light receiver provided in the rear reference section and a slitter provided in the detection section.

Further, the front reference device and the rear reference device can be set not on the track straightening machine but at positions that have a certain positional relationship with the track straightening machine and are not affected by the straightening work. Since the positions of the front reference device and the rear reference device affect the coefficient k, the positions of these devices are determined with consideration given to making k as large as possible. Furthermore, in the front reference section, the error between the reference point and the rail is smaller than the error in the rear reference section or the detection section, so in the embodiment, the front reference device is not provided with a lateral correction device, but even if provided. Of course it's a good thing.

As explained above, in the leveling device equipped with the inspection device according to the present invention, the leveling device is disposed not in the detection section but in the front reference section and the rear reference section, so that the influence of vibrations caused by the tamping device is eliminated. In addition, since the level itself is not moved during measurement, the detection level is stable and accurate.
In addition, the detection bar, reference bar, potentiometer, and other equipment used in conventional leveling devices that have a level at the end of the track straightener to reduce the effects of vibration are completely unnecessary. The structure is extremely simple. Furthermore, since there is no need to form a plane between the front reference part and the rear reference part, it is also advantageous that the mechanism and inspection operation for this purpose are simplified. A further advantage is that the reference line for height detection, which is naturally provided in the measuring device, can be used as is for level detection. In the inspection method of the present invention, since an electrical arithmetic circuit is used to calculate the detection level, accurate results can be obtained quickly. It is superior in all respects compared to conventional leveling devices, such as preventing deviations from occurring.

[Brief explanation of the drawing]

Fig. 1 is a schematic layout diagram of an embodiment of the leveling device according to the present invention mounted on a track straightening machine, Fig. 2 is a schematic perspective view of an inspection device of the leveling device, and Fig. 3 is a leveling device according to the present invention. FIG. 4, which is a diagram for explaining the measuring method, is a block diagram showing the main parts of the leveling device. DESCRIPTION OF SYMBOLS 1...Track alignment machine, 4...Rail height and level inspection device, 5a, 5b...Rail, 6...Vertical drive section, 7a, 7b...Vertical adjuster, 10a,
10b... Reference wire, 12a, 12b... Feeler corrector, 13a, 13b... Feeler, 14
...Feeler level, 41...Front reference device, 41
h, 41h', 42h, 42h'...Reference point, 42...
... Rear reference device, 43 ... Detection device, A, B ... Level, 42g ... Lateral correction device, 20 ... Calculator, 21 ... Cant amount setting device.

Claims (1)

[Scope of Claims] 1. A track straightening machine that forms reference lines above the left and right rails and has a means for sensing each reference line is provided with a front reference part at the front and a rear reference part at the rear, and the front reference Detects the height of the left or right rail relative to the right or left rail at the rear reference section and the rear reference section, and calculates the slope of the reference line above the level side rail with respect to the reference line above the height side rail based on the detected level. A method for leveling and measuring a track straightening machine, characterized in that the height and level are corrected by correcting the position of the sensing means with respect to a reference line above the level side rail based on this calculated value. 2. The track straightening machine according to claim 1, wherein a calculated value representing the inclination of the reference line above the level side rail and a calculated value representing a predetermined cant amount are calculated by a calculator. Leveling inspection method. 3. In addition to forming reference lines above the left and right rails, a first reference line is installed on the front reference part provided at the front of the track straightening machine, which has means for sensing each reference line.
A second level is provided in the rear reference part provided at the rear of the track straightening machine, and the output of the first level and the output of the second level allow the level side rail to be adjusted. an arithmetic unit that calculates the slope of the upper reference line with respect to the reference line above the reference side rail; and a corrector that corrects the position of the sensing means with respect to the reference line above the level side rail in response to the output of the arithmetic unit. A leveling device for a track straightening machine. 4. The leveling device for a track straightening machine according to claim 3, further comprising a cant amount setter, and the predetermined cant amount set by the setter is calculated by the calculator.