JP2005248432A - Method of detecting ballast condition, method of determining whether tamping operation is good or not, and finishing support device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of detecting a ballast condition from a penetration depth of a tamping tool, and to provide a lifting support device for controlling the tamping tool, based on an analysis result of data stored according to the method. <P>SOLUTION: Tamping work of ballast laid under sleepers by dropping the tamping tool onto the ballast, is carried out by repeatedly dropping and lifting the tamping tool several times. The present inventors have found out a relationship in which the penetration depth of the dropped tamping tool into the ballast (hereinafter referred to as "the tool depth") is in proportion to ballast resistance, and have quantified the relationship as a factor of evaluation of the tamping work. According to the method, the tool depth can be obtained by measuring upper and lower heights of the tamping tool by using a potentiometer attached to a multiple tie-tamper, for instance. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention has a tamping unit having a tamping unit provided with a plurality of tamping tools corresponding to the inside and outside of a track, and tamping the ballast on the roadbed with each tamping tool (hereinafter referred to as a multy). A method for detecting the bed bed condition from the depth of penetration of the tool, and by accumulating and analyzing the detected bed bed condition data, determining the number of compaction and the amount of lifting, and automatically controlling the tamping tool. The present invention relates to a lifting support device that can be used.

  Multai is a track maintenance machine that lifts the sleepers that are the object of tamping work together with the rails using a clamping device, and in that state, the ballast on the track is secured by a tamping tool. Usually, before and after the sleepers to be tamped, a total of twelve places, one inside each of a set of two rails and two outside, are consolidated together.

In the techniques described in Patent Documents 1 and 2, in such a tamping work by a mulch tie, track information of a part where a rail is branched, a part in a railroad crossing, or a part where ancillary equipment such as a signal cable is provided Is known using a non-contact type electronic device such as an ID tag. In Multai, only the places where tamping work can be performed are automatically tamped based on this track information, and the places where the tamping work cannot be done are squeezed by the maintenance staff. These are only information on incidental facilities on the track.
JP-A-6-64541 Japanese Patent Laid-Open No. 10-266107

  As described above, in the techniques described in Patent Documents 1 and 2, it is possible to obtain information on incidental facilities on the track, but it is impossible to grasp the state of the roadbed. Therefore, the determination of the number of times of compaction and the amount of lifting is based on the judgment of the operator who operates the mulch. Therefore, depending on the level of skill of the operator, even within the allowable error range, there are variations in the number of squeezing and the amount of lifting, resulting in a difference in the finishing condition, and a problem that the ride quality is good or bad. In addition, there is a problem that the roadbed state after the compaction work varies depending on the individual, and the necessary maintenance cycle is shortened.

  The present invention is an improvement and removal in view of the above-described conventional problems, and it is possible to control the tamping tool from a method of grasping the road bed state from the penetration depth of the tamping tool and the result of analyzing the data accumulated by this method. To provide a lifting support device.

  Thus, in order to solve the above-mentioned problem, the means of claim 1 adopted by the present invention is that the tamping tool is used in a road maintenance work of a multiple tie tamper that drops the tamping tool onto the road bed and fixes the road bed under the sleepers. The depth of penetration into the bed is detected by measuring the vertical position of the tamping tool, and the bed resistance at the measurement part is obtained from the relationship between the penetration depth and the bed resistance previously obtained. This is a detection method of the roadbed state.

  The means of claim 2 adopted by the present invention is that in the maintenance work for a multiple tie tamper that drops the tamping tool onto the roadbed and fixes the roadbed under the sleeper, the penetration depth of the tamping tool into the roadbed is determined. This is a method for detecting the road bed state characterized by detecting the vertical position and determining the trajectory error speed in the measurement part based on the relationship between the penetration depth and the trajectory error speed determined in advance. .

  According to the third aspect of the present invention, the tamping tool penetrates into the roadbed in the tie bed maintenance work of the multiple tie tamper where the tamping tool is dropped onto the roadbed to fix the roadbed under the sleepers. A compaction operation characterized by detecting whether or not the compaction operation of the operator is good or bad based on the correlation between the penetration depth obtained in advance and the amount of elevation on the point plane. This is a method for judging whether the product is good or bad.

  The means of claim 4 adopted by the present invention is an apparatus for supporting the road bed maintenance work of the multiple tie tamper that drops the tamping tool onto the road bed and fixes the road bed under the sleepers, and measures the vertical position of the tamping tool. And a depth-of-penetration measuring device that detects the depth of penetration, and data such as the roadbed resistance, the trajectory error speed, and the judgment result of the operator's compaction operation obtained by the method of claims 1-3. Analyzing and calculating the optimal number of compaction and lifting amount for the position where the roadbed maintenance work is performed, and outputting the number of compaction and the lifting amount calculated by the computation device to the control device of the tamping tool A lifting support device characterized by comprising a control unit for

  In the invention of claim 1, the operation of dropping the tamping tool onto the road bed and fixing the road bed under the sleepers is performed by repeatedly dropping and lifting the tamping tool several times. The present inventors have found a correlation that the depth at which the tamping tool penetrates into the road bed when the tamping tool is dropped (hereinafter referred to as the tool depth) is proportional to the road bed resistance. Was quantified to be an element of evaluation for tamping work. The tool depth can be obtained by measuring the vertical height position of the tamping tool by using, for example, a potentiometer provided in the Multai. That is, the electrical signal from the potentiometer is taken out, the vertical height position of the tamping tool is obtained, and the tool depth is obtained from the value. Then, the value of the tool depth is included in the relational expression between the tool depth and the roadbed resistance obtained by analyzing the data accumulated in advance to obtain the roadbed resistance.

  In the invention of claim 2, data in daily tamping work is accumulated and analyzed, and it has also been clarified that the tool depth and the trajectory error speed have a correlation. The tool depth is proportional to the road bed resistance. When the tool depth is shallow, it can be determined that the road bed state is hard, the trajectory deviation is less likely to occur, and the speed at which the trajectory deviation increases is slow. On the other hand, when the tool depth is deep, it can be determined that the roadbed state is soft, the trajectory error tends to occur, and the trajectory error advance speed is high. If the trajectory speed is high, the maintenance cycle of the roadbed must be set short.

In the invention of claim 3, it has been found that it is possible to judge whether the operator's compacting operation is good or not based on the correlation between the tool depth and the point average lifting amount. The operator's compaction operations are mainly tamping times and ballast compaction (squeeze) performed after dropping the tamping tool onto the roadbed. A squeeze is a method of compacting a ballast by narrowing or widening the distance between tamping tools before and after a sleeper.
In the invention of claim 3, data in daily tamping work is accumulated, and it was found from the analysis result that the tool depth and the point average lifting amount have a correlation. If there is a variation in the point average lifting amount, the tamping frequency and squeeze of the operator are not appropriate, and the compaction operation is ugly. As a result of accumulating the quality of the operator's compaction operation in this way, it is possible to know the appropriate number of tamping and squeeze times for a certain tool depth, and by quantifying this, there will be no individual differences among operators. In addition, it will make it possible to automatically tighten maltai.

  In the invention of claim 4, data such as the roadbed resistance, the trajectory error speed, the judgment result of the operator's compaction operation obtained by the above claims 1 to 3 are accumulated and analyzed. Thereby, it is possible to obtain the optimum number of compaction and the amount of lifting at the position where the roadbed maintenance work is performed. In the present apparatus, this is performed by an arithmetic unit. The number of times of compaction and the amount of lifting that have been arithmetically processed by the arithmetic device are output to the control device of the tamping tool. As a result, it is possible to automate the mulch, so that individual differences among operators do not affect the finished state, and it is possible to obtain a uniform finished state that can extend the maintenance cycle.

  The configuration of the present invention will be described below based on the embodiment of the invention shown in the drawings. FIGS. 1 to 3 relate to an embodiment of the present invention. FIG. 1 is a block diagram showing the overall configuration of the Multai lifting support device 1. FIG. 2 is a tool depth (depth from below a sleeper). ) And FIG. 3 is a flowchart of the lifting support apparatus 1. As shown in FIG. 1, the lifting support device 1 uses an existing device 2 and an automation device (central control device) 3 in Maltai.

  The existing apparatus includes a potentiometer 4 that measures the vertical position of a tamping tool (not shown), a control circuit 5, and leveling measuring instruments 6A and 6B that measure the height positions of the rail top surfaces of the left and right tracks. Open and close the sensor 7 as it measures the street (bending condition of the track), the tamping pedal 8 that starts the tamping by dropping the tamping tool, and the tools before and after the tamping tool after dropping. And a squeeze pedal 9 for starting the operation of compacting the ballast. The control circuit 5 has a tamping circuit for causing the tamping tool to move up and down and to keep the tamping tool stopped at the standby position. In addition, the leveling measuring instruments 6A and 6B measure the height position of the rail top surface of the left and right rails, the lining circuit for correcting the unevenness in the rail longitudinal direction, and the ballast after the tamping tool is dropped. And a squeeze circuit for performing compaction.

Signals output from each measuring device and control device of these existing devices are output to the arithmetic unit (CPU) 10 of the automation device 3, and numerical data from the measuring device and data such as the number of tamping and squeeze are accumulated and stored. Is done.
On the other hand, the lifting support device 1 calculates a signal to the control circuit 5 of the existing device 2 based on a calculation processing unit that calculates the accumulated data from the automation device 3 and a result obtained by the calculation processing unit. And a control processing unit 11 for outputting.

  In the lifting support device 1 configured as described above, the tool depth for each sleeper is measured based on the flowchart shown in FIG. The tool depth is measured by the following procedure after Multai arrives at the site and sets the tamping tool at the appropriate sleeper position. First, the vertical height position of the tamping unit (a set of tamping tools on each of the left and right tracks) is read. If the tamping unit is not in the locked position, it is determined that the tamping work has started, and the tamping tool is lowered. At the same time, data logging is started and a counter is preset.

  Then, it is determined whether or not the tamping tool is below the ON position (the standby position below the storage position). When the position is below the ON position, the tamping tool is located at the tamping work position and is performing the tamping work. The tool depth at this time is measured from the output signal (voltage value) of the potentiometer 4. Subsequently, the height position of the rail top surface before climbing (before lifting the rail) is read by the left and right leveling potentiometers 6A and 6B. After the tamping and squeeze operations are completed, the rail is unclamped and the rail top surface The height position is read and the difference between the two is calculated.

  If the street is out of order, the rail position is shifted to the left and right together with the sleepers, and the street is corrected. The sensor 7 passes through the street value before the street is corrected (the deviation in the horizontal direction with respect to the rail center). taking measurement. Since the street correction is performed when the rail is released after tamping and squeezing, the street value is read after tamping and squeezing, the difference between the two is obtained, and the amount of movement is calculated. Further, the number of squeeze times and the squeeze time are measured, and the position of the point (kilo present) where these operations are performed is read.

  This completes the predetermined tamping and squeeze work. After that, the tamping unit is raised and moved to its upper limit position. When returning to the upper limit position, the above-described data during each operation is temporarily stored. Each temporarily stored data is output to the central processing unit 10 of the automation device 3 and stored in a database. In the mulch, it is determined whether or not the tamping unit is in the storage position. If the tamping unit is in the storage position, all the operations are completed, and the tamping unit moves to the position of the sleeper for the next tamping operation. If it is not in the storage position, the process returns to the step of confirming the vertical position of the tamping tool at any work position, and the above routine is repeated.

  In the present embodiment, as a result of accumulating and analyzing the data collected in this way, the following correlation has been found. First of all, the resistance of the road bed generated when the tamping tool is driven into the road bed is proportional to the tool depth. As described with reference to the flowchart of FIG. 2, the tool depth is calculated from the electrical signal from the potentiometer 4 mounted in the mulch, and the vertical position of the tamping tool is obtained and calculated from that value. Then, the value of the tool depth is included in the relational expression between the tool depth and the roadbed resistance obtained by analyzing the data accumulated in advance to obtain the roadbed resistance.

  Second, there is a correlation between the tool depth and the trajectory speed. The high or low trajectory speed means a speed at which the height of the rail top surface of each of the left and right rails changes at a certain period. As shown in FIG. 4, the correlation between the tool depth and the high and low trajectory error speed is shown by drawing a line with a tool depth of 70 mm on the vertical axis and increasing the trajectory error from 0 mm to the maintenance target value of 7 mm in one year. The value of the trajectory error speed to reach 0.194 mm / Maya (1 Maya is a period of about 36 days of orbital inspection measurement per year is equivalent to around 10 days) is drawn on the horizontal axis. Data collected separately in the partitioned areas I, II, III, and IV were analyzed. A line with a tool depth of 70 mm is a boundary indicating whether the tool blade penetrates completely under the sleeper. The 0.194 / Maya line, if left unattended, is the boundary that is subject to the high / low orbit deviation correction work once a year.

As a result, the region I is a group of points where the tool penetrates at an appropriate depth and the trajectory speed is low. The IV area is a section where the road bed has been replaced within five years, there is no ballast refinement, etc., but the tool penetrates, but there is fluttering and shiraishi, and the speed of madness is great and the function is impaired. It was coming. The region III is a region where the road bed consolidation due to the finer grain is remarkable and the penetration resistance is increased. Although there are many unclear points in the area II, it can be seen that the trajectory is maintained while the bed is solid.
Focusing on the correlation shown in FIG. 4, it is possible to determine whether the region is I, II or III, IV from the trajectory error speed, and whether the region is III region or IV from the history of roadbed replacement. It is possible to determine whether it is an area. It can be judged that the bed bed condition is good in the regions I and II, and the regions III and IV are bad.

Furthermore, the present inventors have also found that the tool depth and the lifting amount have a correlation. Fig. 5 shows the results after the construction when the expert and the beginner performed the maintenance work on the basis of the improvement rate of the amount of lifting and evaluated it according to A to E ranks. Comparison was made with the amount of lifting after performing the compaction operation on the amount. The figure (A) of the same figure is the data at the time of the maintenance work by the expert, and the figure (B) is the data at the time of the maintenance work by the beginner. Further, these data are displayed by being classified according to the day each worker performs the work. According to the figure (A), the point average hoisting amount with respect to the tool depth is collected, and the average hoisting amount is 0.9 or more, and there is an appropriate compaction operation for the penetration resistance. I understand that. Furthermore, the improvement rate of the lifting amount is within the A to C ranks. On the other hand, in the case of a beginner shown in the figure (B) of the same figure, the improvement rate of the dredging amount is D or E rank, and the point average wrinkle for the case where the initial tool depth value is the same. The value of the upper amount is also different, and there is a large variation in the pattern of the compaction operation, indicating that the compaction operation is poor.
In this way, it is possible to judge whether the operator's compaction operation is good or bad from the correlation between the initial tool depth and the point average lifting amount. It is possible to pattern what sort of compaction operation should be performed based on the initial tool depth.

  Furthermore, the present inventors investigated the correlation between the tool depth and the number of compaction operations when quantifying the compaction operation of the operator. The results are shown in Fig. 6. When a newcomer (novice) with little experience has performed the compaction operation, the number of compaction is small as a whole, the roadbed is compacted, and the maintenance cycle is expected to be extended. Can not. In addition, in a place where a large amount of lifting is required, the skilled person repeats compaction and lifting many times, whereas compaction and lifting tend to be insufficient. On the other hand, when the skilled person performs the compaction operation, the number of consolidations is large as a whole, and it is understood that the proper number of compaction is applied to the planned amount of lifting.

  Thus, by analyzing the data accumulated by the present inventors, there is a correlation between the tool depth and the penetration resistance, and there is also a correlation between the tool depth and the trajectory deviation speed. It became clear that it was possible to grasp the bed bed condition. Furthermore, there is also a correlation between the tool depth and the amount of lifting, which makes it possible to judge whether or not the operator performs the compacting operation, and in addition, the correlation between the tool depth and the number of compacting operations on the site. Once the initial tool depth is known, the appropriate number of compactions can be determined.

  Based on these correlations, the inventors quantify what kind of compaction operation should be performed at the site from the compaction operation of an expert, and incorporate this into the lifting support apparatus 1 shown in FIG. Based on the flowchart shown in FIG. 3, the support of the lifting operation of the Maltai is performed. At the site, the operator is clarified by the data from the track measuring vehicle in which the planned lifting amount and the moving amount are performed in advance, and performs an operation so that these clear the set values.

  Thus, the operator steps on the tamping pedal 8 to drop the tamping tool onto the roadbed. The tool depth at that time is measured by the potentiometer 4 and output to the central processing unit 10 of the automation device 3. The central processing unit 1 outputs the data and accumulated past data to the arithmetic processing and control processing unit 11 of the lifting support device. Based on the data, the arithmetic processing and control processing unit 11 outputs the optimum number of compaction times, the number of squeeze times, and the like to the mulch side. The mulch side performs compaction and squeeze of the number of times automatically instructed based on this output signal. It should be noted that the amount of lifting is measured for each compaction. Then, when the lifting amount and the movement amount clear the set values, the work is finished, and the movement to the next sleeper is performed.

  As described above, the lifting support apparatus 1 according to the present embodiment accumulates and analyzes data such as the correlation between the tool depth, the roadbed resistance, the trajectory error speed, and the judgment result of the operator's compaction operation. ing. As a result, the optimum number of times of compaction and the amount of lifting of the roadbed maintenance work are obtained, and the tamping tool is automatically controlled so that the individual difference of the operator does not affect the finished state. Further, it is possible to obtain a uniform finished state that can extend the maintenance cycle.

It is a block diagram which concerns on one embodiment of this invention and shows the whole structure of a multi-tie lifting support apparatus. It is a flowchart in the case of measuring the tool depth according to one embodiment of the present invention. It is a flowchart of a lifting support apparatus according to an embodiment of the present invention. FIG. 6 is a diagram related to an embodiment of the present invention and showing a correlation between a tool depth and a trajectory deviation speed. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A shows an embodiment of the present invention, and FIG. 1A shows a correlation between a tool depth and an average amount of lifting by a skilled operator's compacting operation, and FIG. It is drawing which shows the correlation with the tool depth and average amount of hoisting. FIG. 5 is a diagram illustrating a correlation between a tool depth and the number of compaction according to an embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Lifting support apparatus, 2 ... Existing apparatus, 3 ... Automation apparatus, 4 ... Potentiometer, 5 ... Control part, 6A ... Left leveling potentiometer, 6B ... Right leveling potentiometer, 7 ... Street sensor, 8 ... Tamping pedal, 9 ... Squeeze pedal, 10... Central processing unit, 11... Arithmetic processing and control processing unit

Claims (4)

Measure the depth of penetration of the tamping tool into the roadbed by measuring the vertical position of the tamping tool in the maintenance work of multiple tie tampers that drop the tamping tool onto the roadbed and fix the roadbed under the sleepers. A method for detecting a bed bed condition, characterized in that the bed bed resistance at the measurement portion is obtained from the relationship between the penetration depth and the bed bed resistance. Measure the depth of penetration of the tamping tool by measuring the vertical position of the tamping tool in the maintenance work of multiple tie tampers where the tamping tool is dropped onto the roadbed to fix the roadbed under the sleepers. A method for detecting a road bed condition, characterized in that the trajectory error speed in the measurement portion is obtained from the relationship between the penetration depth and the trajectory error speed. Measure the depth of penetration of the tamping tool into the roadbed by measuring the vertical position of the tamping tool in the maintenance work of multiple tie tampers that drop the tamping tool onto the roadbed and fix the roadbed under the sleepers. A method for determining the quality of the compaction operation, characterized in that the quality of the compaction operation of the operator is determined from the correlation between the penetration depth and the amount of lifting on the point plane. An intrusion depth measurement that detects the penetration depth by measuring the vertical position of the tamping tool by dropping the tamping tool onto the roadbed and supporting the roadbed under the sleepers. Optimizing the position where the roadbed maintenance work is performed by accumulating and analyzing data such as the roadbed resistance, the trajectory error speed, the judgment result of the operator's compaction operation quality determined by the method of claims 1 to 3 It is characterized by comprising an arithmetic device for determining the number of tamping and the amount of lifting and a control unit for outputting the number of tamping and the amount of lifting processed by the arithmetic device to the control device of the tamping tool.扛上 Assist device.

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