JPS6057005B2 - Track alignment machine leveling inspection method and leveling device - Google Patents

Description

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

In general, when adjusting a track, the vertical adjustment of the longitudinal direction of the top surface of the left or right rail, that is, the height deviation, is corrected, and the height deviation of the left and right rails, that is, the level deviation, is corrected. A leveling adjustment is performed to adjust the value, and these are collectively called leveling adjustment, and are performed by a leveling device of a track straightening machine.

A track straightening machine automatically levels and straightens the track using a leveling device while running on the rail.
Usually used as a leveling device, a leveling inspection device (
A rail lifting device (also referred to as a rail lifting device) that lifts the rail to the leveling correction position according to a command from the inspection device, and a rail lifting device that lifts the rail to the leveling correction position by the rail lifting device. In order to maintain this, the ballast bed is equipped with a tamping device that compacts the ballast track bed on the underside of the sleepers using vibrations, etc. Normally, one of the left and right rails is set as the reference side rail and the other rail is set as the anti-reference side rail, and the height deviation of the reference side rail is first corrected using a measuring device and a rail lifting device. After correcting the level deviation of the anti-reference side rail with respect to the reference side rail whose height deviation has been corrected, in order to hold the rail at the leveling correction position, the ballast track bed on the underside of the sleeper is compacted using a tamping device to perform leveling. Do what is right. Conventionally, various inspection devices for this type of track straightening machine have been proposed, and a typical one is a front reference part and a rear reference part provided at the front and rear parts of the track straightening machine, respectively. A detection part for detecting height deviation of the rail, which has a reference line sensing means between the front reference part and the rear reference part, and a detection part for detecting height deviation of the rail, and a reference line is formed above each rail between the front reference part and the rear reference part. A measuring device equipped with a level to detect deviation is known.

As an example of this type of measuring device, a detection unit and a level are placed near the tamping device, and the height deviation of the rail is measured by the displacement of the reference line detection means with respect to the reference line. However, when adjusting the level, the response speed of the level becomes a problem.If the response speed is made faster, it becomes unstable due to the vibration of the tamping device, and if the response speed is made slower, it becomes difficult to lift the left and right rails. This method not only takes time, but also has the disadvantage that the detection level includes errors. The present invention was made in order to eliminate the above-mentioned drawbacks of the conventional inspection device of the leveling device of the track straightening machine, and it forms reference lines above the left and right rails, and misleads each reference line. In a track straightening machine having a means for The height error of the reference line above the reference side rail is corrected, and the height difference between the front reference part and the rear reference part is adjusted based on the level at the rear reference part and the predetermined cant amount. There is provided a leveling inspection method characterized in that the position of the sensing means provided between the two is corrected with respect to a reference line above a rail on the opposite reference side.

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 responds to the difference in output between the first and second level. an inclination corrector for adjusting the level of the front reference part to match the level of the rear reference part; and a vertical adjuster for correcting a height error caused in the reference line above the reference side rail by the inclination corrector. ,
Provided is a leveling inspection device comprising: a corrector that corrects the position of the sensing means with respect to the reference line above the non-reference side rail in response to the difference between the second level and a predetermined cant amount. do. According to the present invention, the spirit level is disposed in the front reference part and the rear reference part which are hardly affected by the vibrations caused by the tamping device, and the level can be detected as is with the reference line detection means used for height detection. Since it can be used for many purposes, the configuration of the inspection device is simplified.

Further, since an electrical arithmetic circuit is used to calculate the detection level, accurate results can be obtained quickly, and as a result, leveling correction can be performed with almost no delay element. Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a schematic layout diagram of an embodiment of the leveling inspection device according to the present invention mounted on a track straightening machine, FIG. 2 is a schematic perspective view of an embodiment of the leveling inspection device of the present invention, and FIG. FIG. 3 is a diagram for explaining the leveling inspection method according to the present invention, and FIG. 4 is a block diagram showing the main parts of the leveling work. In FIG. 1, the leveling device is 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 tamping device 3, and a 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 a description thereof 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 therebetween. The front reference device 41 is a cart 41c supported by measuring wheels 41a, 41b rolling on rails 5a, 5b.
On the other hand, the swing bar 41d is pin-coupled to the swing itself by a joint 41e. The swing bar 41d has struts 41f and 41g extending upward from both ends.
The movement of 1g is free in the vertical direction and restricted in the left-right and front-back directions by a guide tube (not shown) fixed to the main body 1a. A spirit level A is attached to the center of the swing bar 41d, and a cap nut 41h that is threadedly engaged with a threaded rod 62 of a tilt corrector 6, which will be described later, is fixed close to it. Beam 411 between the upper ends of pillars 41f and 41g
is provided. The beam 411 is attached to the pillars 41f and 41g so that the pin can swing freely, and a vertical adjuster 7 is installed in the center of the beam 411.
is installed. The vertical adjuster 7 is composed of a drive section 7a and vertical movement devices 7d and 7e connected to the drive section 7a by rotating shafts 7b and 7c, and is configured to meet the criteria described below at the rail gradient change section or total slope. Adjust the height of the left and right wires at the same time. The vertical movement devices 7d and 7e are attached to the upper ends of the columns 41f and 41g, respectively, and have vertically movable rods 8A and 8b above them. The rods 8a, 8b are moved upward or downward by driving the driving portion 7a of the vertical adjuster 7 to rotate the rotating shafts 7b, 7c. The upper ends of the rods 8a and 8b are swingably connected to each other by a connecting bar 41j via a pin (not shown). Therefore, when the truck 41c is tilted by the rails 5a and 5b, the connecting bar 41j is also tilted. The tilt corrector 6 is configured to rotate a threaded rod 62 via a deceleration means 61 by a motor M fixed to the main body 1a in an appropriate manner, and when the threaded rod 62 is rotated, the swing bar is rotated. In cooperation with a cap nut 41h fixed to 41d, the swing bar 41d1 and hence the front reference device 41 are tilted with respect to the main body 1a. The threaded rod 62 is supported on the truck 41c. Next, the rear reference device 42 also controls the rails 5a and 5b.
It has struts 42d and 42e that are swingably and laterally movably attached to both ends of a cart 42c supported by wheels 42a and 42b that roll on it and extend upward, and both upper ends of the struts 42d and 42e. A beam 42f is provided in between, which is swingably attached with a pin (not shown).

The movement of the struts 42d and 42e, like the struts 41f and 41g, is free in the vertical direction and restricted in the left-right and front-back directions by a guide tube (not shown) fixed to the main body 1a. A spirit level B is provided on the cart 42c. Beam 42
A laterally movable reference beam 42i is attached to f, and reference points 42h, 42h'' are attached to this reference beam 421.
are provided at both ends. This reference beam 421 has a structure in which reference points 42h, 42h'' can always be moved directly above the rails 5a, 5b by a lateral correction device 42g. This prevents it from slipping from directly above. Additionally, trolley 42
c and the reference beam 421 are configured to always have the same inclination. Reference point 41 of connecting bar 41j of front reference device 41
Between the reference points 42h, 42h'' of the reference beam 421 of the rear reference device 42, two reference wires 10a, 10b are stretched directly above the rails 5a, 5b. The tension of both wires is adjusted by a wire tension adjustment device 411 provided on the connection bar 41j.

Height from measurement wheels 41a, 41b to reference points 41k, 41k'' and from wheels 42a, 42b to reference points 42h, 42
The height up to h'' is achieved by vertically moving devices 7d and 7e using rods 8a and 8a.
8b is kept at exactly the same value except when moving it in the vertical direction at a gradient change section or during a full climb. Next, the detection device 43 detects wheels 43a and 43a rolling on the rails 5a and 5b.
A cart 43c supported by 43b, and this cart 43c.
It has struts 43d and 43e that are swingably and laterally movably attached to both sides and extend upward, and a beam 43f is connected between the upper ends of these struts 43d and 43e as fulcrums 43g,
43g' so as to be swingable. Pillar 43
The movements of d and 43e are caused by the movements of pillars 41f, 41g and 42d,
Similarly to 42e, it is freely movable in the vertical direction and restrained in the left-right and front-rear directions by a guide tube (not shown) fixed to the main body 1a. Feelers 13a and 13b are suspended from the beam 43f via feeler modifiers 12a and 12b that are attached in a horizontally movable structure.
3a and 13b sense the wires when they come into contact with the reference wires 10a and 10b, respectively. Both fillers 13a
, 13b are swingably attached to the feeler correctors 12a, 12b, and are connected to the feeler leveler 14 to be kept horizontal at all times. In this case, in the rail curve section, the reference points 41k, 41k'' of the front reference device 41 and the reference points 42h, 42h'' of the rear reference device 42 are directly above the rail, but the detection device 43 is located between the front reference and the rear reference. Therefore, the positions of the reference wires 10a, 10b and the rails 5a, 5b are misaligned, and the inclination of the left and right rails causes a height error. Therefore, the feeler level 14 is used to keep the feeler level at all times and make corrections to prevent the height error from occurring. The beam 43f is suspended in a direction across the rails 5a and 5b by a lateral correction device 43h, and this lateral correction device 43h is similar to the lateral correction device 42g in the rear reference device 42 described above.
To prevent feelers 13a and 13b from shifting from directly above the rail. The case where level detection is performed using the measuring device of the present invention having such a configuration will be described with reference to FIGS. 3 and 4J. The feeler is corrected during level detection, and the feeler correction is performed as follows.

Levels A and B are configured to extract the height difference 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 called A.
, b. Now, with the rail 5a as the reference side, the level a of the front reference part from the level A and the level b of the rear reference part from the level B are compared by the comparator 15, and the output corresponding to the difference between the two levels is calculated as the slope. It is supplied to the corrector 6. As a result, the motor M of the tilt corrector 6 is driven, and the threaded rod 62 is rotated by a predetermined amount via the speed reduction device 61, thereby tilting the swing bar 41d as shown by the two-dot chain line in FIG. In this way, the level of the front reference part is adjusted to the level of the rear reference part. In other words, the swing bar 41d in the front reference device 41 is made parallel to the cart 42c in the rear reference device 42. However, as a result, the reference side reference point 41k in the front reference part changes from the position P1 before the operation of the tilt corrector 6 to the position P2. The output a is supplied to the coefficient multiplier 16 and multiplied by a necessary coefficient k, and then the output is supplied to the vertical adjuster 7. The vertical adjuster 7 adjusts the vertical movement device 7d according to the output of the coefficient multiplier 16.
, 7e, the rods 8a and 8b are simultaneously moved downward by the same amount, so that the connecting bar 41j descends while maintaining a parallel state, and the reference point 41k descends from position P2 to P1 and stops. In this way, the reference side reference point 4 by the tilt corrector 6
The 1k error will be corrected. The coefficient multiplier 16 adjusts the ratio of the length L of the connecting bar 41j to the distance 1 between the two reference points 41k and 41k'' in order to correct the deviation of the reference side reference point 41k caused by the inclination of the swing bar 41d. It multiplies the input by the determined coefficient K=l/L and outputs the result.As an example, if 1=112・L, then K=112,
The amount by which the connecting bar 41j is lowered by the vertical adjuster 7 is determined by the level A.
The output a is 1'2. Next, the output b of the level B of the rear reference section is compared with the cant amount C set by the cant amount setting device 17 in the comparator 18, and an output corresponding to the sum or difference is obtained. The feeler 13b is supplied to the anti-reference side feeler corrector 12b selected in advance by the reference changeover switch 19.
is corrected by a predetermined amount. In the flat area, the cant setting amount C is input as zero. In addition, the feeler corrector 12 on the reference side
a is held at the zero position that was adjusted prior to the measurement. Since the above-mentioned feeler correction work is performed immediately after the track straightening machine stops moving between the sleepers, the feeler has already been corrected to a predetermined position at the time of straightening. After the filler has been corrected in this manner, leveling correction is performed by the leveling device.

After stopping the track straightening machine at the correction position, the lifting device 2 lifts the rails 5a, 5b, and the feelers 13a, 1
3b separates from the reference wires 10a and 10b, respectively, a "leveling 0K" signal is issued and the rail lifting work is stopped. The lifting operation is performed independently for the left and right rails, but the feeler correction work is performed immediately after the track straightening machine stops moving between the sleepers, and the feeler has already been corrected to the specified position at the time of straightening, so the feeler correction work is performed for the left and right rails independently. There is no delay in lifting operations. In the embodiment described above, a reference wire is used as the reference line and a feeler is used as the reference line detection means, but instead of these, a light source is provided in the front reference part and the light beam emitted from this light source is used to detect the reference wire. It is also possible to form a reference line detection means by forming a line and comprising a light receiver provided in the rear reference part and a slitter provided in the detection part.

Further, the front reference device or the rear reference device can be located not on the track straightening machine but at a position that has a fixed positional relationship with the track straightening machine and is not affected by the tamping operation.

Furthermore, in the front reference section, the lateral error between the reference point and the rail is smaller than the error in the rear reference section or the detection section, so in this embodiment, the front reference device is not provided with a lateral correction device. Of course it's a good thing. As explained above, in the leveling device equipped with the measuring device according to the present invention, since the leveling device is placed in the front reference part and the rear reference part which are not affected by the tamping device, vibrations caused by the tamping device can be avoided. There is almost no effect, the detection level is stable, the detection accuracy is improved, and the structure is significantly simplified.

A further advantage is that the standard line for height detection, which is naturally provided in the measuring device, can be used as is for level detection. The measuring method of the present invention uses an electrical arithmetic circuit to calculate the detection level, so it has great effects such as being able to quickly obtain accurate results.

[Brief explanation of drawings]

FIG. 1 is a schematic layout diagram of an embodiment of the leveling inspection device according to the present invention mounted on a track straightening machine, FIG. 2 is a schematic perspective view of an embodiment of the leveling inspection device of the present invention, and FIG. FIG. 3 is a diagram for explaining the leveling inspection method according to the present invention, and FIG. 4 is a block diagram showing the main parts of the leveling work. 1...Track adjustment machine, 4...Levelling inspection device, 5a, 5b...Rules, 6...
Tilt corrector, 7...Vertical adjuster, 10a, 10b
...Reference wire, 12a, 12b...Feeler corrector, 13a, 13b...Feeler, 1
4... Feeler level, 41... Front reference device, 41h, 41h'', 42k, 42k''...
Reference point, 42... Rear reference device, 43...
・Detection device, A, B... Level, 42g, 43
h... Lateral correction device, 15, 18...
Comparator, 16...Coefficient multiplier, 17...
Cant amount setting device.

Claims (1)

[Claims] 1. 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, a reference line is formed between the front reference part and the rear reference part, and the level at the front reference part is set. The height error of the reference line above the reference side rail is corrected to match the level at the rear reference part, and the front reference part and the rear reference part are adjusted based on the level at the rear reference part and a predetermined cant amount. A leveling inspection method characterized by correcting the position of the sensing means provided between the reference lines above the anti-reference side rail. 2 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, a reference line is formed between the front reference part and the rear reference part, and a first spirit level is attached to the front reference part. a tilt corrector for placing a second level on the reference section and adjusting the level of the front reference section to match the level of the rear reference section in response to the difference in output between the first and second level instruments; a vertical adjuster for correcting a height error caused in the reference line above the reference side rail by the inclination corrector; A leveling inspection device for a track straightening machine, comprising a corrector for correcting the position of the sensing means with respect to the line.