CN116654050A - Device and method for monitoring running and operation on-orbit state of polishing trolley - Google Patents
Device and method for monitoring running and operation on-orbit state of polishing trolley Download PDFInfo
- Publication number
- CN116654050A CN116654050A CN202310962271.4A CN202310962271A CN116654050A CN 116654050 A CN116654050 A CN 116654050A CN 202310962271 A CN202310962271 A CN 202310962271A CN 116654050 A CN116654050 A CN 116654050A
- Authority
- CN
- China
- Prior art keywords
- wheel
- state
- polishing trolley
- rail
- distance sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000012544 monitoring process Methods 0.000 title claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 238000005096 rolling process Methods 0.000 claims abstract description 21
- 238000012545 processing Methods 0.000 claims abstract description 10
- 230000033001 locomotion Effects 0.000 claims description 43
- 239000008186 active pharmaceutical agent Substances 0.000 claims description 14
- 238000012806 monitoring device Methods 0.000 claims description 10
- 230000009194 climbing Effects 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 235000000396 iron Nutrition 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 description 13
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- GZPBVLUEICLBOA-UHFFFAOYSA-N 4-(dimethylamino)-3,5-dimethylphenol Chemical compound CN(C)C1=C(C)C=C(O)C=C1C GZPBVLUEICLBOA-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004091 panning Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0054—Train integrity supervision, e.g. end-of-train [EOT] devices
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/02—Working rail or other metal track components on the spot
- E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
- E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses a device and a method for monitoring running and operating on-orbit states of a polishing trolley, and relates to the field of rail transit, wherein the device comprises a fixed bracket, a laser sensor assembly and data processing equipment; the fixed bracket is arranged on the polishing trolley framework and is used for fixing the laser sensor assembly; each laser sensor component is used for acquiring and outputting the distance from the nominal rolling circle of the wheel to the highest point of the rail top of the steel rail and the distance from the top point of the rim of the wheel to the rail bottom of the steel rail; the data processing equipment is used for carrying out on-orbit state monitoring on the walking and operation of the polishing trolley according to the data output by the laser sensor assembly. The invention considers the integral running form of the polishing trolley, can rapidly, accurately and clearly give out the monitoring result of the whole vehicle, eliminates the influence of the track passing seam and the turnout of the wheel, is compatible with the working conditions of fasteners, clamping plates, switch rails, pull rods, connecting rods, top irons, limiters, spacing irons, rail supporting rib plates and rim grooves at the side of the rail, and greatly ensures the judging accuracy of the on-rail state of the wheel.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a device and a method for monitoring running and operation on-orbit states of a polishing trolley.
Background
With the high-speed development of rail transit, the interaction between the vehicles and the rails is aggravated due to the influence of factors such as a plurality of rail transit running vehicles, high carrying quantity, high running density, complex line conditions and the like, and the rail damage problem is becoming serious.
The damage of the steel rail not only can influence the running stability and the comfort of the vehicle, but also can greatly influence the service life of the vehicle track components due to the vibration between the wheel and the rail, and the quality, the cost and even the safety problems of railway transportation are directly related. In order to delay the development of the damage of the steel rail and prolong the service life of the steel rail, the steel rail is usually polished and repaired by a steel rail polishing vehicle after the surface state of the steel rail is deteriorated by an overhaul department. The rail grinding wagon mainly comprises a cart and a grinding trolley, and the grinding trolley has two states in the running process: a self-walking state and a working state. In the self-running process of the polishing trolley, under the interaction of the guide wheels and the steel rails and the action of the connecting parts of the large trolley and the small workshop, the running stability and the safety of the polishing trolley are influenced; in the operation process, besides the influence of self-walking, the influence of the interaction force between the grinding stone and the steel rail on the operation safety of the grinding trolley is more remarkable. At present, rail grinding trucks used in China have repeated rail derailing accidents of the grinding trucks in practical application, not only do not achieve the aim of repairing rails, but also cause more serious damage to the rails, so that the cost is increased for replacing the rails, and meanwhile, great safety risks are brought to grinding truck operators. The occurrence rate of safety accidents can be reduced only by carrying out real-time on-line monitoring on the running and on-orbit state of the polishing trolley, the running safety of the vehicle and the polishing trolley is improved, and the derailment accidents are effectively prevented.
At present, the detection and evaluation method for the running and operation on-orbit state of the polishing trolley is rough, and needs to be further perfected, firstly, the measurement parameters are not visual, the indexes such as the traditional wheel load shedding rate, the derailment coefficient and the like are calculated through the measurement data of the force measuring wheel set, the derailment is indirectly evaluated, the misinformation problem is not solved, and domestic and foreign scholars theoretically research that whether the derailment is judged through the wheel lifting amount and the wheel rail contact point, but the wheel lifting amount and the wheel rail contact point are generally difficult to accurately measure in engineering practice; secondly, the false alarm rate is high, the prior art CN105480250A discloses an anti-derailment bogie based on bearing saddle positioning detection and a derailment detection method, and the patent judges whether the bogie derails or not by utilizing three continuous distance values, but frequent false alarms are caused by short jump because wheels are frequently disturbed by the roughness of the surface of a steel rail; CN109032057a discloses a method, device and system for monitoring derailment of a grinding trolley of a rail grinding car, wherein the patent utilizes the number and duration of sensor alarms to generate and generate alarm information, but cannot effectively early warn the derailment trend; CN114368411a discloses a method and device for monitoring and early warning of derailment safety of a train, the patent uses a laser instrument and a camera to identify contact profiles of wheel tracks, converts relative lateral displacement data of the wheel tracks to evaluate the derailment safety level, but the requirement of the camera on working environment is higher, and the detection precision of the camera is affected by abrasive dust and dust generated during the operation of a grinding vehicle, so that the false alarm rate of derailment is greatly improved; the derailment evaluation view angle is isolated, the integral condition of the polishing trolley is not considered, only the on-orbit state of one wheel is judged, the on-orbit state linkage analysis of the wheels of the same axle under different working conditions is not carried out, and the integral operation form linkage analysis of the polishing trolley is not carried out by combining all the on-orbit conditions of the wheels. Therefore, the existing method has lower accuracy in monitoring the running and operation on-orbit state of the polishing trolley.
Disclosure of Invention
Aiming at the defects in the prior art, the device and the method for monitoring the running and operating on-track state of the polishing trolley solve the problem that the existing method is low in accuracy in monitoring the running and operating on-track state of the polishing trolley.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the on-orbit state monitoring device for walking and operation of the polishing trolley comprises a fixed bracket, a laser sensor assembly and data processing equipment; the number of the fixed brackets and the laser sensor assemblies is the same as that of the wheels of the polishing trolley;
the fixed bracket is arranged on the polishing trolley framework and is used for fixing the laser sensor assembly;
each laser sensor assembly comprises two laser distance sensors, wherein the first laser distance sensor is used for acquiring and outputting the distance from a nominal rolling circle of the wheel to the highest point of the rail top of the steel rail; the second laser distance sensor is used for acquiring and outputting the distance from the top point of the wheel rim to the rail bottom of the steel rail;
and the data processing equipment is used for carrying out on-orbit state monitoring on the walking and operation of the polishing trolley according to the data output by the laser sensor assembly.
The monitoring method based on the on-orbit state monitoring device for walking and operation of the polishing trolley comprises the following steps:
s1, obtaining the distance from a nominal rolling circle of a corresponding wheel at each wheel of a polishing trolley to the highest point of a rail top of a steel rail and the distance from the top point of a rim of the wheel to the rail bottom of the steel rail through a laser sensor assembly;
s2, acquiring state values of all wheels of the polishing trolley according to data and data slopes output by the laser sensor assembly;
and S3, identifying the movement state of the polishing trolley according to the state values of all wheels of the polishing trolley, and realizing the running and operation on-track state monitoring of the polishing trolley.
The beneficial effects of the invention are as follows:
1. the invention adopts the relative vertical displacement of the wheel rail as a derailment judging data source, is a more direct method for observing the contact state of the wheel rail compared with the derailment coefficient and the wheel weight load shedding rate, is a more suitable index for the working environment of the grinding trolley and can be directly measured compared with an indirect calculation method for detecting the transverse displacement of the wheel by a camera, the vibration acceleration of an axle box and the like, and can be directly related to the lifting quantity of the wheel.
2. The method adopts the mode of mutual reference of the relative vertical displacement results of the coaxial wheels, combination of duration time and data change slope to comprehensively evaluate the in-orbit state of the wheels, is more reasonable in evaluation of the in-orbit state of the wheels, eliminates the influence of the over-orbit seam and the turnout of the wheels, is compatible with the working conditions of fasteners, clamping plates, switch rails, pull rods, connecting rods, top irons, limiters, spacing irons, rail bracing plates and rim grooves beside the rails, and greatly ensures the judgment accuracy of the in-orbit state of the wheels.
3. The invention considers the whole running form of the polishing trolley, can rapidly, accurately and clearly give out the whole vehicle monitoring result, and is more in line with the working requirements of the overhaul department, and simultaneously gives out a corresponding scheme, so that the derailment object, the cause, the current running form of the polishing trolley and emergency measures should be taken as long as derailment exists, thereby improving the working efficiency and protecting the working safety of staff.
Drawings
FIG. 1 is a schematic diagram of the installation structure of the monitoring device;
FIG. 2 is an illuminated front schematic view of a monitoring device;
FIG. 3 is a schematic flow chart of the method;
FIG. 4 is a flow chart of acquiring status values of each wheel of the sanding trolley;
FIG. 5 is a schematic flow chart for monitoring the running and operation on-track state of the polishing trolley;
FIG. 6 is a schematic representation of the wheel-rail position in an ideal wheel-rail contact geometry in an embodiment;
FIG. 7 is a schematic diagram of the wheel track position at the critical moment of derailment early warning;
FIG. 8 is a schematic diagram of wheel track position at the moment of track climbing;
FIG. 9 is measurement data of a vehicle as it climbs a track;
fig. 10 is measurement data of a wheel passing through a 10mm rail gap.
Wherein: 1. a fixed bracket; 2. a laser sensor assembly; 3. a wheel; 4. a steel rail; 5. and (5) polishing the trolley framework.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and all the inventions which make use of the inventive concept are protected by the spirit and scope of the present invention as defined and defined in the appended claims to those skilled in the art.
As shown in fig. 1 and 2, the on-track state monitoring device for walking and operation of the polishing trolley comprises a fixed bracket 1, a laser sensor assembly 2 and data processing equipment; the number of the fixed brackets 1 and the laser sensor assemblies 2 is the same as that of the wheels of the polishing trolley;
the fixed bracket 1 is arranged on the polishing trolley framework 5 and is used for fixing the laser sensor assembly 2;
each laser sensor assembly 2 comprises two laser distance sensors, wherein the first laser distance sensor is used for acquiring and outputting the distance from a nominal rolling circle of the wheel to the highest point of the rail top of the steel rail 4; the second laser distance sensor is used for acquiring and outputting the distance from the top of the rim of the wheel 3 to the bottom of the steel rail 4;
the data processing equipment is used for carrying out the running and operation on-orbit state monitoring of the polishing trolley according to the data output by the laser sensor assembly 2.
The data processing equipment comprises a data slope acquisition unit, a wheel state value acquisition unit and a polishing trolley overall motion state acquisition unit;
a data slope obtaining unit for obtaining a data slope of the laser sensor assembly 2;
the wheel state value acquisition unit is used for acquiring the state value of each wheel 3 of the polishing trolley according to the data value and the data slope output by the laser sensor assembly 2;
and the overall motion state acquisition unit of the polishing trolley is used for identifying the motion state of the polishing trolley according to the state values of the wheels 3 of the polishing trolley, so as to realize the running and operation on-orbit state monitoring of the polishing trolley.
As shown in fig. 3, the monitoring method based on the on-track state monitoring device for walking and operation of the polishing trolley comprises the following steps:
s1, obtaining the distance from a nominal rolling circle of a corresponding wheel at each wheel of a polishing trolley to the highest point of a rail top of a steel rail and the distance from the top point of a rim of the wheel to the rail bottom of the steel rail through a laser sensor assembly 2;
s2, acquiring state values of all wheels of the polishing trolley according to data and data slopes output by the laser sensor assembly 2;
and S3, identifying the movement state of the polishing trolley according to the state values of all wheels of the polishing trolley, and realizing the running and operation on-track state monitoring of the polishing trolley.
As shown in fig. 4, the specific method of step S2 includes the following sub-steps:
s2-1, judging whether output data of a first laser distance sensor of a first wheel of the polishing trolley is larger than or equal to DS+HF and the duration is larger than t1, and if yes, entering a step S2-2; otherwise, enter step S2-4; wherein t1 is a constant;
s2-2, judging whether output data of a second laser distance sensor of the first wheel is smaller than DS+HMAX and the duration time is longer than t1, if yes, judging that the state of the first wheel is derailed, marking the state value D1 as 31, and entering step S2-7; otherwise, enter step S2-3; wherein both HMAX and t1 are constants;
s2-3, judging whether output data of a first laser distance sensor of a second wheel of the polishing trolley is larger than or equal to DS+HF and whether output data of the second laser distance sensor of the second wheel is smaller than DS+HMAX, if yes, judging that the state of the first wheel is safe, and recording a state value D1 of the first wheel as 1; otherwise, judging the state of the first wheel as derailment, and recording the state value D1 as 32; step S2-7 is carried out; wherein the second wheel is coaxial with the first wheel;
s2-4, judging whether the output data of the first laser distance sensor of the first wheel is greater than or equal to DS+HY, if so, entering a step S2-5; otherwise, judging that the state of the first wheel is safe, entering a step S2-7, and marking the state value D1 as 1; the HY is an early warning critical of vertical lifting of the wheels relative to the steel rail;
s2-5, judging whether the slope of the output data of the first laser distance sensor of the first wheel is larger than SL1_L and smaller than SL1_H and the duration is larger than t1, if so, entering a step S2-6; otherwise, judging that the state of the first wheel is safe, marking the state value D1 as 1, and entering the step S2-7; the system comprises a first laser distance sensor, a second laser distance sensor, a third laser distance sensor, a fourth laser distance sensor, a fifth laser distance sensor, a sixth laser distance sensor and a fourth laser distance sensor, wherein SL1_L is the output data slope of the first laser distance sensor when a nominal rolling circle of the wheel is continuously at the highest point of the rail top of a steel rail, and SL1_H is the output data slope of the first laser distance sensor when the wheel passes through a rail gap;
s2-6, judging whether the slope of output data of a second laser distance sensor of the first wheel is larger than SL2 and the duration is larger than t1, if so, judging that the first wheel is in a derailment early warning state, and marking the state value D1 as 2; otherwise, judging the state of the first wheel to be safe, and recording the state value D1 of the first wheel as 1; the SL2 is the output data slope of the second laser distance sensor when the nominal rolling circle of the wheel is continuously at the highest point of the rail top of the steel rail, and SL2 is larger than 0; step S2-7 is carried out;
s2-7, acquiring state values of other wheels of the polishing trolley by adopting the same method as that of the steps S2-1 to S2-6; wherein, the state corresponding to D1 being 1 is normal; the state corresponding to D1 is 2 is derailment early warning; the corresponding state of D1 is 31, namely wheel climbing rail; the state corresponding to D1 being 32 is wheel jump.
As shown in fig. 5, the specific method of step S3 includes the following sub-steps:
s3-1, judging whether the maximum state value in all wheels of the polishing trolley is greater than 3, if so, entering a step S3-2; otherwise, marking the overall motion state value T1 of the polishing trolley as 1;
s3-2, judging whether D1 is larger than 3, D3 is larger than 3, D2 is equal to 1 and D4 is equal to 1, and if so, marking the overall motion state value T1 of the polishing trolley as 3; otherwise, entering a step S3-3; wherein D2 is the state value of the second wheel of the polishing trolley, D3 is the state value of the third wheel of the polishing trolley, D4 is the state value of the fourth wheel of the polishing trolley, the first wheel and the third wheel are on the same side, and the third wheel and the fourth wheel are coaxial;
s3-3, judging whether D1 is larger than 3, D4 is larger than 3, D2 is equal to 1 and D3 is equal to 1, if so, marking the overall motion state value T1 of the polishing trolley as 2; otherwise, marking the overall motion state value T1 of the polishing trolley as 1;
when T1 is 1, the whole motion state of the polishing trolley is safe; when T1 is 2, the whole motion state of the polishing trolley is a shaking motion; and when T1 is 3, the whole motion state of the polishing trolley is rolling motion.
After step S3, the method further comprises the steps of:
s4, when the maximum state value of all wheels of the polishing trolley is greater than 3, generating alarm information and sending the alarm information to related personnel, and sending an emergency lifting instruction of a hydraulic cylinder of the polishing trolley and a deceleration braking instruction of the polishing trolley to a control system of the polishing trolley; the alarm information comprises the integral running state of the derailing wheel and the polishing trolley; when the maximum state value in all wheels of the polishing trolley is equal to 2, generating early warning information and sending the early warning information to related personnel; wherein the early warning information comprises wheels with a derailment tendency, i.e. wheels with a state value of 2.
In the specific implementation process, the initial distance DS from the nominal rolling circle of the wheel to the highest point of the rail top of the steel rail is 100mm; the initial distance HF from the top of the rim to the highest point of the rail top of the steel rail is 27mm; the first laser distance sensor and the second laser distance sensor are arranged at equal heights, and the initial distance measured by the first laser distance sensor is the distance from the nominal rolling circle of the wheel to the highest point of the 4 rail tops of the steel rails; the initial distance measured by the second laser distance sensor minus DS and HF is the distance from the top of the rim of the wheel 3 to the bottom of the steel rail 4. HMAX had a value of 170mm and HY had a value of 12mm. the value of t1 can be determined by the running speed of the polishing trolley, and can be set manually according to actual conditions.
A vehicle body generally has 6 degrees of freedom according to vehicle dynamics and is described by 6 fixed terms, including a sink-float motion, a yaw motion, a telescopic motion, a head-shaking motion, a nodding motion and a side rolling motion, while the yaw and the side rolling of the vehicle body are always coupled together to form a rolling motion, and in actual operation, a polishing trolley can cause overturning and endanger the main consideration of the head-shaking motion and the rolling motion in the present operation form, so that the two motions are separately classified, and the sink-float, the telescopic motion and the nodding motion are grouped together into other safe motions.
In one embodiment of the invention, the wheel track position in the ideal wheel track contact geometry is shown in fig. 6, the wheel track position at the derailment early warning critical moment is shown in fig. 7, and the wheel track position at the derailment warning critical moment is shown in fig. 8. As shown in fig. 9 and 10 (the ordinate in the figure represents the data measured by the sensor, the unit is mm, the abscissa is time, and the unit is ms), in fig. 9, it can be seen that the distance from the top of the rim to the rail bottom of the rail is about 270mm before the vehicle climbs the rail, when the wheel starts to climb the rail, because the wheel lifts, the distance from the top of the rim to the rail bottom of the rail is slightly greater than 270mm, and then the data measured by the second laser distance sensor becomes the distance from the top of the rim to the side of the rail, so that the value is drastically reduced; when the wheel climbs the rail, the data measured by the second laser distance sensor becomes the distance from the top point of the rim to the highest point of the rail top, which is around 100 mm. As can be seen in fig. 10, the first laser distance sensor has a sudden change in value when the wheel passes through a 10mm seam, but the duration is short, so the invention uses the data duration for false alarm elimination.
In this embodiment, the grinding carriage derails and operates in a working condition of moving head: the speed of the car is 80km/h and the oil cylinder is extended, which means that the grinding trolley falls on the steel rail and is running or grinding operation. The relative vertical displacement of the wheel rail at different times was obtained by a laser distance sensor assembly, as shown in table 1, with the first laser distance sensor (sensor 1) measurement value of wheel 1 being denoted as da1, the second laser distance sensor (sensor 2) measurement value of wheel 1 being denoted as da2, the first laser distance sensor (sensor 1) measurement value of wheel 2 being denoted as db1, the second laser distance sensor (sensor 2) measurement value of wheel 2 being denoted as db2, and so on.
Table 1: laser distance sensor assembly measurements
The method comprises the steps of respectively analyzing the on-track states of two wheels of a first axle by utilizing 4 laser distance sensor measured values of the first axle, wherein the first wheel firstly judges that the measured value 130>100+27 of the sensor 1 is longer than t1, so that the output data of a second laser distance sensor is judged, and D1 = 31 is recorded as derailment alarm because 160<270 and the duration is longer than t1, and the specific type is wheel derailment alarm.
The same method determines the second wheel, sensor 1 measurement 275>100+27 for the second wheel and duration greater than t1, sensor 2 measurement 298>270 for the second wheel, thus comprehensively determining sensor 1 measurement 130>100+27 for the first wheel and sensor 2 measurement 160<270 for the first wheel, d2=1, noted as safe. The same method was used to analyze the third and fourth wheels to obtain d3=1, d4=31. The third wheel and the fourth wheel are coaxial, and the first wheel and the third wheel are on the same side.
After the state values of all the wheels are obtained, analyzing the overall motion state T1 of the polishing trolley:
dmax=31, DMAX >3, not satisfying d1>3 and d3>3 and d2=1 and d4=1, but satisfying d1>3 and d4>3 and d2=1 and d3=1, t1=2, is noted as a panning motion. The corresponding emergency policies are: DMAX is greater than 3, alarm information is generated and sent to related operators, the alarm information comprises derailment (climbing rail) of a first wheel, derailment (climbing rail) of a fourth wheel and shaking movement of a grinding trolley, and an emergency lifting instruction of a hydraulic cylinder of the grinding trolley and a deceleration braking instruction of the grinding trolley are sent to a control system of the grinding trolley.
In summary, the invention considers the whole running form of the polishing trolley, can rapidly, accurately and clearly give out the monitoring result of the whole vehicle, eliminates the influence of the rail passing seam and the turnout of the vehicle, is compatible with the working conditions of fasteners, clamping plates, switch rails, pull rods, connecting rods, top irons, limiters, spacing irons, rail brace plates and rim grooves at the rail side, and greatly ensures the judging accuracy of the rail state of the vehicle.
Claims (8)
1. The on-orbit state monitoring device for walking and operation of the polishing trolley is characterized by comprising a fixed bracket, a laser sensor assembly and data processing equipment; the number of the fixed brackets and the laser sensor assemblies is the same as that of the wheels of the polishing trolley;
the fixed bracket is arranged on the polishing trolley framework and is used for fixing the laser sensor assembly;
each laser sensor assembly comprises two laser distance sensors, wherein the first laser distance sensor is used for acquiring and outputting the distance from a nominal rolling circle of the wheel to the highest point of the rail top of the steel rail; the second laser distance sensor is used for acquiring and outputting the distance from the top point of the wheel rim to the rail bottom of the steel rail;
and the data processing equipment is used for carrying out on-orbit state monitoring on the walking and operation of the polishing trolley according to the data output by the laser sensor assembly.
2. The on-track running and operating condition monitoring device for a grinding trolley according to claim 1, wherein the initial distance DS from the nominal rolling circle of the wheel to the highest point of the rail top of the rail is 100mm; the initial distance HF from the top of the rim to the highest point of the rail top of the steel rail is 27mm; the first laser distance sensor and the second laser distance sensor are arranged at equal heights, and the initial distance measured by the first laser distance sensor is the distance from the nominal rolling circle of the wheel to the highest point of the rail top of the steel rail; the initial distance measured by the second laser distance sensor minus DS and HF is the distance from the top of the wheel rim to the rail bottom of the steel rail.
3. The on-track running and operation state monitoring device for the polishing trolley according to claim 1, wherein the data processing equipment comprises a data slope obtaining unit, a wheel state value obtaining unit and a polishing trolley overall motion state obtaining unit;
the data slope acquisition unit is used for acquiring the data slope of the laser sensor component;
the wheel state value acquisition unit is used for acquiring the state value of each wheel of the polishing trolley according to the data and the data slope output by the laser sensor assembly;
and the overall motion state acquisition unit of the polishing trolley is used for identifying the motion state of the polishing trolley according to the state values of all wheels of the polishing trolley, so that the running and operation on-track state monitoring of the polishing trolley is realized.
4. A monitoring method based on the on-orbit state monitoring device for walking and operation of a polishing trolley according to any one of claims 1 to 3, which is characterized by comprising the following steps:
s1, obtaining the distance from a nominal rolling circle of a corresponding wheel at each wheel of a polishing trolley to the highest point of a rail top of a steel rail and the distance from the top point of a rim of the wheel to the rail bottom of the steel rail through a laser sensor assembly;
s2, acquiring state values of all wheels of the polishing trolley according to data and data slopes output by the laser sensor assembly;
and S3, identifying the movement state of the polishing trolley according to the state values of all wheels of the polishing trolley, and realizing the running and operation on-track state monitoring of the polishing trolley.
5. The method according to claim 4, wherein the specific method of step S2 comprises the following sub-steps:
s2-1, judging whether output data of a first laser distance sensor of a first wheel of the polishing trolley is larger than or equal to DS+HF and the duration is larger than t1, and if yes, entering a step S2-2; otherwise, enter step S2-4; wherein t1 is a constant;
s2-2, judging whether output data of a second laser distance sensor of the first wheel is smaller than DS+HMAX and the duration time is longer than t1, if yes, judging that the state of the first wheel is derailed, marking the state value D1 as 31, and entering step S2-7; otherwise, enter step S2-3; wherein both HMAX and t1 are constants;
s2-3, judging whether output data of a first laser distance sensor of a second wheel of the polishing trolley is larger than or equal to DS+HF and whether output data of the second laser distance sensor of the second wheel is smaller than DS+HMAX, if yes, judging that the state of the first wheel is safe, and recording a state value D1 of the first wheel as 1; otherwise, judging the state of the first wheel as derailment, and recording the state value D1 as 32; step S2-7 is carried out; wherein the second wheel is coaxial with the first wheel;
s2-4, judging whether the output data of the first laser distance sensor of the first wheel is greater than or equal to DS+HY, if so, entering a step S2-5; otherwise, judging that the state of the first wheel is safe, entering a step S2-7, and marking the state value D1 as 1; the HY is an early warning critical of vertical lifting of the wheels relative to the steel rail;
s2-5, judging whether the slope of the output data of the first laser distance sensor of the first wheel is larger than SL1_L and smaller than SL1_H and the duration is larger than t1, if so, entering a step S2-6; otherwise, judging that the state of the first wheel is safe, marking the state value D1 as 1, and entering the step S2-7; the system comprises a first laser distance sensor, a second laser distance sensor, a third laser distance sensor, a fourth laser distance sensor, a fifth laser distance sensor, a sixth laser distance sensor and a fourth laser distance sensor, wherein SL1_L is the output data slope of the first laser distance sensor when a nominal rolling circle of the wheel is continuously at the highest point of the rail top of a steel rail, and SL1_H is the output data slope of the first laser distance sensor when the wheel passes through a rail gap;
s2-6, judging whether the slope of output data of a second laser distance sensor of the first wheel is larger than SL2 and the duration is larger than t1, if so, judging that the first wheel is in a derailment early warning state, and marking the state value D1 as 2; otherwise, judging the state of the first wheel to be safe, and recording the state value D1 of the first wheel as 1; the SL2 is the output data slope of the second laser distance sensor when the nominal rolling circle of the wheel is continuously at the highest point of the rail top of the steel rail, and SL2 is larger than 0; step S2-7 is carried out;
s2-7, acquiring state values of other wheels of the polishing trolley by adopting the same method as that of the steps S2-1 to S2-6; wherein, the state corresponding to D1 being 1 is normal; the state corresponding to D1 is 2 is derailment early warning; the corresponding state of D1 is 31, namely wheel climbing rail; the state corresponding to D1 being 32 is wheel jump.
6. The method according to claim 5, wherein the specific method of step S3 comprises the following sub-steps:
s3-1, judging whether the maximum state value in all wheels of the polishing trolley is greater than 3, if so, entering a step S3-2; otherwise, marking the overall motion state value T1 of the polishing trolley as 1;
s3-2, judging whether D1 is larger than 3, D3 is larger than 3, D2 is equal to 1 and D4 is equal to 1, and if so, marking the overall motion state value T1 of the polishing trolley as 3; otherwise, entering a step S3-3; wherein D2 is the state value of the second wheel of the polishing trolley, D3 is the state value of the third wheel of the polishing trolley, D4 is the state value of the fourth wheel of the polishing trolley, the first wheel and the third wheel are on the same side, and the third wheel and the fourth wheel are coaxial;
s3-3, judging whether D1 is larger than 3, D4 is larger than 3, D2 is equal to 1 and D3 is equal to 1, if so, marking the overall motion state value T1 of the polishing trolley as 2; otherwise, marking the overall motion state value T1 of the polishing trolley as 1;
when T1 is 1, the whole motion state of the polishing trolley is safe; when T1 is 2, the whole motion state of the polishing trolley is a shaking motion; and when T1 is 3, the whole motion state of the polishing trolley is rolling motion.
7. The monitoring method according to claim 6, further comprising the step of, after step S3:
s4, when the maximum state value of all wheels of the polishing trolley is greater than 3, generating alarm information and sending the alarm information to related personnel, and sending an emergency lifting instruction of a hydraulic cylinder of the polishing trolley and a deceleration braking instruction of the polishing trolley to a control system of the polishing trolley; the alarm information comprises the integral running state of the derailing wheel and the polishing trolley; when the maximum state value in all wheels of the polishing trolley is equal to 2, generating early warning information and sending the early warning information to related personnel; wherein the early warning information comprises wheels with a derailment tendency, i.e. wheels with a state value of 2.
8. The method of monitoring according to claim 5, wherein HMAX has a value of 170mm and HY has a value of 12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310962271.4A CN116654050B (en) | 2023-08-02 | 2023-08-02 | Device and method for monitoring running and operation on-orbit state of polishing trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310962271.4A CN116654050B (en) | 2023-08-02 | 2023-08-02 | Device and method for monitoring running and operation on-orbit state of polishing trolley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116654050A true CN116654050A (en) | 2023-08-29 |
| CN116654050B CN116654050B (en) | 2023-10-13 |
Family
ID=87722879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310962271.4A Active CN116654050B (en) | 2023-08-02 | 2023-08-02 | Device and method for monitoring running and operation on-orbit state of polishing trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116654050B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012223076A (en) * | 2011-04-14 | 2012-11-12 | Railway Technical Research Institute | Operation control system for railroad, and its method |
| CN111845842A (en) * | 2019-04-29 | 2020-10-30 | 洛阳双瑞橡塑科技有限公司 | Track monitoring system and monitoring method thereof |
| CN112722003A (en) * | 2019-10-14 | 2021-04-30 | 北京昊鹏智能技术有限公司 | Method and equipment for monitoring train derailment risk |
| CN112912297A (en) * | 2018-10-31 | 2021-06-04 | 西门子交通奥地利有限责任公司 | Method and device for detecting a derailment condition of a rail vehicle |
| CN115219251A (en) * | 2022-07-18 | 2022-10-21 | 西南交通大学 | A Dynamic Performance Monitoring System of Railway Vehicles Based on Wheelset Running Attitude |
| US20230060665A1 (en) * | 2021-08-31 | 2023-03-02 | Focused Technology Solutions, Inc. | Switch Gap Detection System |
-
2023
- 2023-08-02 CN CN202310962271.4A patent/CN116654050B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012223076A (en) * | 2011-04-14 | 2012-11-12 | Railway Technical Research Institute | Operation control system for railroad, and its method |
| CN112912297A (en) * | 2018-10-31 | 2021-06-04 | 西门子交通奥地利有限责任公司 | Method and device for detecting a derailment condition of a rail vehicle |
| CN111845842A (en) * | 2019-04-29 | 2020-10-30 | 洛阳双瑞橡塑科技有限公司 | Track monitoring system and monitoring method thereof |
| CN112722003A (en) * | 2019-10-14 | 2021-04-30 | 北京昊鹏智能技术有限公司 | Method and equipment for monitoring train derailment risk |
| US20230060665A1 (en) * | 2021-08-31 | 2023-03-02 | Focused Technology Solutions, Inc. | Switch Gap Detection System |
| CN115219251A (en) * | 2022-07-18 | 2022-10-21 | 西南交通大学 | A Dynamic Performance Monitoring System of Railway Vehicles Based on Wheelset Running Attitude |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116654050B (en) | 2023-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102521432B (en) | Security judging method of rail irregularity state | |
| US6668239B1 (en) | Track monitoring equipment | |
| CN106245474B (en) | A kind of track detecting dolly | |
| CN109443264B (en) | Online measuring device and method for wheel cake parameters of railway vehicle | |
| CN203231740U (en) | Railway track wear detector | |
| KR101256901B1 (en) | Prediction methods for derailment of the wheels using the external force acted on the wheelset | |
| EP2374686A1 (en) | Method of detecting warning sign of derailment and derailment reproduction apparatus | |
| WO2017113983A1 (en) | Anti-derailing bogie based on adapter positioning detection and derailing detection method | |
| CN109353370B (en) | Non-contact rail wave mill and contour detection device | |
| US6192736B1 (en) | Tribometer for testing the efficiency of lubrication upon a railroad track surface | |
| WO2017121177A1 (en) | Derailing prevention bogie based on side frame positioning detection and derailing detection method therefor | |
| CN107200041A (en) | Tramcar wheel out of round degree on-line measuring device and method based on array laser | |
| CN206219922U (en) | A kind of track detecting dolly | |
| CN205344913U (en) | Derailment inspection equipment based on side bearer location | |
| CN116654050B (en) | Device and method for monitoring running and operation on-orbit state of polishing trolley | |
| CN112644558A (en) | Rail train, rail state monitoring method and monitoring system bearing platform | |
| CN210618147U (en) | Track fastener overhauls equipment | |
| CN113624140A (en) | Online measuring device and method for wheel cake parameters of railway vehicle | |
| CN205344912U (en) | Derailment inspection equipment based on bear saddle location | |
| Zheng et al. | Experimental and numerical investigation of bogie hunting instability for railway vehicles based on multiple sensors | |
| CN2823079Y (en) | On-line testing device for wheels of trains | |
| CN208219317U (en) | A kind of pocket hand-held railroad track detection trolley | |
| Tsubokawa et al. | Development of a dynamic track measuring device for gauge and twist to reduce derailment accidents | |
| CN205344911U (en) | Anticreep rail bogie based on bear saddle location detection | |
| CN214065967U (en) | Parallel contact detection system for vehicle wheel tread abrasion and out-of-roundness |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |