CN109895807A - Trouble area's rail detection system - Google Patents

Trouble area's rail detection system Download PDF

Info

Publication number
CN109895807A
CN109895807A CN201910304044.6A CN201910304044A CN109895807A CN 109895807 A CN109895807 A CN 109895807A CN 201910304044 A CN201910304044 A CN 201910304044A CN 109895807 A CN109895807 A CN 109895807A
Authority
CN
China
Prior art keywords
detection
trouble area
track
shape
area
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.)
Pending
Application number
CN201910304044.6A
Other languages
Chinese (zh)
Inventor
孔德顺
刘越
杨琦
付青喜
李世林
安爱民
段小军
李学宝
胡智博
姜恵峰
李元龙
梁凤庆
周用贵
王敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Huaheng Technology Co Ltd
Original Assignee
Beijing Huaheng Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Huaheng Technology Co Ltd filed Critical Beijing Huaheng Technology Co Ltd
Priority to CN201910304044.6A priority Critical patent/CN109895807A/en
Publication of CN109895807A publication Critical patent/CN109895807A/en
Priority to CN201910865896.2A priority patent/CN110497931B/en
Priority to CN201910865898.1A priority patent/CN110497932B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61KAUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K9/00Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
    • B61K9/08Measuring installations for surveying permanent way

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

Disclose a kind of trouble area rail detection system, executive device, which is fixedly connected on device out of shape, to be moved with device out of shape along trouble area's track, by the way that second detection device to be fixedly connected to detection trouble area's curve track or trouble area's rectilinear orbit with device out of shape, first detection device is movably coupled to executive device, control device controls executive device and the relatively transverse top for moving so that the first detection device and being always positioned at the first trouble area rectilinear orbit or second trouble area's curve track of the first detection device according to the detection information of second detection device, first trouble area's rectilinear orbit of detection or second trouble area's curve track.The embodiment of the present invention improves measurement accuracy and speed instead of manual measurement, high degree of automation.

Description

Trouble area's rail detection system
Technical field
The present invention relates to track fields, and in particular to a kind of trouble area rail detection system.
Background technique
With high speed, the development construction of heavy haul railway and urban track traffic, the quantity of trouble area's track is more and more.With The various state parameters of the long-play of track, trouble area's track can change therewith, influence the normal operation of train, therefore It is measured, is then correspondingly overhauled according to the parameter of detection, to guarantee train by the state parameter to trouble area's track Safe operation.Measurement data is inputted and is calculated based on manual measurement, record and analysis by existing trouble area's track condition measurement Machine, analyzed by computer statistics supplemented by, this measurement method relies primarily on that artificial measurement is horizontal, the data precision of measurement Difference, the degree of automation is low, large labor intensity, while manual measurement is also easy to cause data test leakage, to cause trouble area's rail-like State measurement data is inaccurate, in turn results in the security risk of train operation.
Summary of the invention
In view of this, the present invention provides a kind of trouble area rail detection system, manual measurement, the degree of automation can replace Height improves measurement accuracy and speed.
The embodiment of the invention provides a kind of trouble area rail detection systems, comprising:
Device out of shape is configured as moving along the predetermined direction of trouble area's track, and trouble area's track includes the first Cha Qu straight Trajectory, second trouble area's rectilinear orbit, first trouble area's curve track and second trouble area's curve track, the first trouble area's straight line rail Road and first trouble area's curve track connection, second trouble area's rectilinear orbit and second trouble area's curve track connection;
Executive device is fixedly connected with the device out of shape;
First detection device is movably coupled to the executive device, for detecting first trouble area's rectilinear orbit or the Two trouble area's curve tracks;
Second detection device is fixedly connected with the device out of shape, for detecting first trouble area's curve track and the second trouble Area's curve track, alternatively, first trouble area's rectilinear orbit of detection and second trouble area's rectilinear orbit;
Control device, be configured as being controlled according to the detection information of the second detection device executive device with it is described First detection device is relatively transverse to move so that first detection device is located at the first trouble area's rectilinear orbit or second The top of trouble area's curve track.
Preferably, the device out of shape includes:
First mechanism out of shape, including the first fixed frame, the first idler wheel and the second idler wheel, first idler wheel and the second idler wheel It is respectively arranged at the both ends of first fixed frame;
Second mechanism out of shape, including the second fixed frame and third idler wheel, second mechanism out of shape and described first out of shape Mechanism is oppositely arranged;
Connection frame, for connecting first fixed frame and the second fixed frame, so that first mechanism out of shape and institute The second mechanism out of shape is stated to move along trouble area's track simultaneously.
Preferably, the executive device includes:
First executing agency, one end are fixedly connected with first fixed frame, and the other end prolongs to the described second mechanism out of shape It stretches;
Second executing agency, one end are fixedly connected with second fixed frame, and the other end prolongs to the described first mechanism out of shape It stretches.
Preferably, the second detection device includes:
First detection unit is fixed on first fixed frame;
Second detection unit is fixed on second fixed frame;
Third detection unit, it is coaxially connected with second idler wheel, for measuring the state of second idler wheel.
Preferably, first detection device includes:
4th detection unit is connect with first executing agency, and first executing agency is configured as according to The state of second idler wheel and the 4th detection unit relatively move;
5th detection unit is connect with second executing agency, and second executing agency is configured as according to The state of second idler wheel and the 5th detection unit relatively move.
Preferably, the first detection unit, second detection unit, the 4th detection unit and the 5th detection unit are three-dimensional Laser displacement sensor;The third detection unit is incremental encoder.
Preferably, the detection system further include:
Multiple three dimension acceleration sensors are connect, for detecting respectively with the device out of shape and the executive device State the acceleration of device out of shape and the executive device during the motion;
Athletic posture detection device is fixed on the connection frame, for detecting the device out of shape along trouble area's track fortune Kinematic parameter when dynamic.
Preferably, the executive device is ball-screw single line rail slide unit, and the athletic posture detection device is laser top Spiral shell instrument.
Preferably, the detection system further include:
Thrust mechanism is fixedly connected with the device out of shape.
Preferably, the detection system further include:
Processing unit is connect with the control device, for storing and processing the detection information of trouble area's track.
Device out of shape is followed to move along trouble area's track by the way that executive device to be fixedly connected on device out of shape, by the second inspection It surveys device and is fixedly connected with detection trouble area's curve track or trouble area's rectilinear orbit with device out of shape, by the first detection device and execute dress It sets and is movably coupled to, control device controls executive device and the first detection device phase according to the detection information of second detection device To transverse shifting so that the first detection device is always positioned at the top of the first trouble area rectilinear orbit or second trouble area's curve track, First trouble area's rectilinear orbit of detection or second trouble area's curve track.The embodiment of the present invention is instead of manual measurement, the degree of automation Height improves measurement accuracy and speed.
Detailed description of the invention
By referring to the drawings to the description of the embodiment of the present invention, the above and other purposes of the present invention, feature and Advantage will be apparent from, in the accompanying drawings:
Fig. 1 is trouble area's rail detection system of the embodiment of the present invention and the stereoscopic schematic diagram of trouble area's track;
Fig. 2 is the stereoscopic schematic diagram one of trouble area's rail detection system of this hair embodiment;
Fig. 3 is the stereoscopic schematic diagram two of trouble area's rail detection system of this hair embodiment;
Fig. 4 is the main view of trouble area's rail detection system of this hair embodiment;
Fig. 5 is the top view of trouble area's rail detection system of this hair embodiment;
Fig. 6 is the left view of trouble area's rail detection system of this hair embodiment;
Fig. 7 is the right view of trouble area's rail detection system of this hair embodiment;
Fig. 8 is the schematic diagram of trouble area's track of this hair embodiment;
Fig. 9 is schematic diagram one in the trouble area rail detection system measurement process of this hair embodiment;
Figure 10 is schematic diagram two in the trouble area rail detection system measurement process of this hair embodiment.
Specific embodiment
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Under Text is detailed to describe some specific detail sections in datail description of the invention.Do not have for a person skilled in the art The present invention can also be understood completely in the description of these detail sections.In order to avoid obscuring essence of the invention, well known method, mistake There is no narrations in detail for journey, process, element and circuit.
In addition, it should be understood by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and What attached drawing was not necessarily drawn to scale.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar Word should be construed as the meaning for including rather than exclusive or exhaustive meaning;That is, be " including but not limited to " contains Justice.
In the description of the present invention, it is to be understood that, term " first ", " second " etc. are used for description purposes only, without It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple " It is two or more.
Unless otherwise clearly defined and limited, the terms such as term " installation ", " connected ", " connection ", " fixation " should be done extensively Reason and good sense solution may be a detachable connection for example, it may be being fixedly connected, or integral;It can be mechanical connection, it can also be with It is electrical connection;Can be directly connected, can also indirectly connected through an intermediary, can be connection inside two elements or The interaction relationship of two elements, unless otherwise restricted clearly.For the ordinary skill in the art, Ke Yigen The concrete meaning of above-mentioned term in the present invention is understood according to concrete condition.
Fig. 1-Fig. 7 is the structural schematic diagram of trouble area's rail detection system of the embodiment of the present invention.As shown in Figure 1, trouble area's rail Road detection system includes device 1, executive device 2, the first detection device 3, second detection device 4 and control device 5 out of shape.It is out of shape Device 1 is configured as moving along trouble area's track.Wherein, executive device 2 is fixed on device 1 out of shape, the first detection device 3 with hold Luggage is set 2 and is movably coupled to, and second detection device 4 is fixed on the device out of shape 1.Control device 5 respectively with execute dress Set the 2, first detection device 3, second detection device 4 communicates to connect.
In the present embodiment, trouble area's track includes two first parallel trouble area's rectilinear orbit A1, second trouble area's straight line rails Road A2 and two are apart from identical first trouble area's curve track B1, second trouble area's curve track B2.The area the Liang Tiaocha straight line rail The distance between road A1, A2 are identical as the distance between the area Liang Tiaocha curve track B1, B2.Wherein, first trouble area's rectilinear orbit The trouble area's curve track B1 intersection connection of A1 and first, second trouble area's rectilinear orbit A2 and second trouble area's curve track B2 phase commissure It connects, as illustrated in figures 1 and 8.Device 1 out of shape can be along two first parallel trouble area's rectilinear orbit A1 and second trouble area's straight line rail Road A2 is mobile, can also move along two apart from identical first trouble area's curve track B1 and second trouble area's curve track B2.
When device 1 out of shape is moved along first trouble area's curve track B1 and second trouble area's curve track B2,1 band of device out of shape Dynamic second detection device 4 is mobile, so that second detection device 4 is always positioned at the trouble of the first trouble area curve track B1 and second area song The top of trajectory B2 can detecte the trouble area's curve track of the first trouble area curve track B1 and second by second detection device 4 The state of B2.The state for trouble area's curve track that control device 5 is obtained according to the detection of second detection device 4, the first detection of control Device 3 and the relatively transverse movement of executive device 2, so that the first detection device 3 is always positioned at the first trouble area rectilinear orbit A1's Top can detecte the state of the first trouble area rectilinear orbit A1 by the first detection device 3.
When device 1 out of shape is moved along first trouble area's rectilinear orbit A1 and second trouble area's rectilinear orbit A2,1 band of device out of shape Dynamic second detection device 4 is mobile, so as to be always positioned at the first trouble area rectilinear orbit A1 and the second Cha Qu straight for second detection device 4 The top of trajectory A2 can detecte the trouble area's rectilinear orbit of the first trouble area rectilinear orbit A1 and second by second detection device 4 The state of A2.The state for trouble area's rectilinear orbit that control device 5 is obtained according to the detection of second detection device 4, the first detection of control Device 3 and the relatively transverse movement of executive device 2, so that the first detection device 3 is always positioned at the second trouble area curve track B2's Top can detecte the state of the second trouble area curve track B2 by the first detection device 3.
Device 1 out of shape includes the first mechanism 11, the second mechanism 12 out of shape and connection frame 13 out of shape, as shown in Figures 2 and 3. Wherein, the first mechanism 11 out of shape is oppositely arranged with the second mechanism 12 out of shape, and the two is fixedly connected by connection frame 13.First is out of shape Mechanism 11 and the second mechanism 12 out of shape can be moved respectively along first trouble area's rectilinear orbit A1 and second trouble area's rectilinear orbit A2 or Person moves respectively along first trouble area's curve track B1 and second trouble area's curve track B2 to complete track detecting.
First mechanism 11 out of shape includes the first fixed frame 111, the first idler wheel 112 and the second idler wheel 113, such as Fig. 2 and Fig. 3 institute Show.Wherein, the first idler wheel 112 and the second idler wheel 113 are respectively arranged at the both ends of the first fixed frame 111, first idler wheel 112 It is set to the front side of the second idler wheel 113.First idler wheel 112 and the second idler wheel 113 are along first trouble area's rectilinear orbit A1 or first Area's curve track B1 that branches off is mobile.Second mechanism 12 out of shape includes the second fixed frame 121 and third idler wheel 122, and third idler wheel 122 is set It is placed in the lower section of the second fixed frame 121, is moved along second trouble area's rectilinear orbit A2 or second trouble area's curve track B2.Connection frame 13 Both ends be fixedly connected respectively with the first fixed frame 111 and the second fixed frame 121 so that three idler wheels can be simultaneously along correspondence Track it is mobile, to complete to detect.In the present embodiment, the first idler wheel 112, the second idler wheel 113 and third idler wheel 122 can be with shapes At triangle, using triangle stability principle, three idler wheels can provide good stabilization during exercise for entire detection system Property.Preferably, the first idler wheel 112, the second idler wheel 113 and third idler wheel 122 can form isosceles triangle, i.e. third idler wheel The distance of 122 to the first idler wheel 112 and being equidistant to the second idler wheel 113.
In the present embodiment, the first idler wheel 112, the second idler wheel 113 and third idler wheel 122 are unilateral wheel, so that institute Running track of the train on trouble area's track can be met by stating detection system when moving.Preferably, first idler wheel 112, Second idler wheel 113 and third idler wheel 122 can be using existing, and the unilateral wheel with standard specification both can satisfy use Demand, while production cost can also be reduced.
In the present embodiment, the first fixed frame 111 can be set to " door " shape structure, can be mutually isostructural by two Longitudinal rod and a transverse bar connect to be formed.Wherein, the first idler wheel 112 and the second idler wheel 113 are rotated with two longitudinal rods respectively Connection.Preferably, hollow structure can be set to by the first fixed frame 111 that longitudinal rod and transverse bar are formed, it on the one hand can be with Mitigate the overall weight of device 1 out of shape, on the other hand it is also possible that the route of detection device is improved by hollow structure cabling The aesthetics of detection system.When the first fixed frame 111 is set as hollow structure, the portion of the first idler wheel 112 and the second idler wheel 113 Minute wheel hub is set in hollow structure, is rotatablely connected by shaft and the first fixed frame 111, is further improved detection system Aesthetics.
Accordingly, the second fixed frame 121 can be set to column structure, and third idler wheel 122 and the second fixed frame 121 rotate Connection.Preferably, second fixed frame 121 may be set to be hollow structure, on the one hand can reduce the whole of device 1 out of shape Body weight, on the other hand it is also possible that the route of detection device improves the aesthetics of detection system by hollow structure cabling. Accordingly, when the second fixed frame 121 is set as hollow structure, the part wheel hub of third idler wheel 122 is set in hollow structure, It is rotatablely connected by shaft and the second fixed frame 121, it is identical as the set-up mode of the first idler wheel 112, the second idler wheel 113, into one Step improves the aesthetics of detection system.
The both ends of connection frame 13 are fixedly connected with the first fixed frame 111 and the second fixed frame 121 respectively, as shown in Figure 5.Its In, connection frame 13 is set to the top of the first fixed frame 111 and the second fixed frame 121.The connection frame 13 is for connecting first Fixed frame 111 and the second fixed frame 121, so that three idler wheels can be simultaneously along first trouble area's rectilinear orbit A1 and the second trouble Area rectilinear orbit A2 is mobile, or moves simultaneously along first trouble area's curve track B1 and second trouble area's curve track B2.At this In embodiment, connection frame 13 includes first connecting rod 131 and the second connecting rod 132, first connecting rod 131 and the second connecting rod 132 is parallel, and the height apart from ground is equal.That is, plane and rail that first connecting rod 131 and the second connecting rod 132 are formed The top surface in road is parallel.In the present embodiment, the both ends of first connecting rod 131 and the second connecting rod 132 respectively with the first fixed frame 111, the second fixed frame 121 connects.Wherein, multiple connections are additionally provided between first connecting rod 131 and the second connecting rod 132 Muscle, for connecting first connecting rod 131 and the second connecting rod 132, to improve the stability of connection frame 13.Preferably, the company Connecing frame 13 can be set to hollow structure, can reduce the weight of device 1 out of shape.
Executive device 2 includes the first executing agency 21 and the second executing agency 22, as shown in Figure 4.First executing agency 21 One end be fixedly connected with the first fixed frame 111, the side where the other end to the second mechanism out of shape 12 extends, and second executes machine One end of structure 22 is fixedly connected with the second fixed frame 121, and the side where the other end to the described first mechanism 11 out of shape extends.Tool Body, the first executing agency 21 is set to the lower section of first connecting rod 131, and the second executing agency 22 is set to the second connecting rod 132 lower section.That is, the first executing agency 21 and the second executing agency 22 put down on the perspective plane parallel with rail top face Row.The height of first executing agency 21 and the second executing agency 22 apart from rail top face can be identical or different, Ke Yigen Factually border is designed and installs.In the present embodiment, the first executing agency 21 and the second executing agency 22 are ball-screw Single line rail slide unit, ball-screw single line rail slide unit include single ball-screw and the slide unit that connect with ball screw spiral. When ball-screw controlled rotation, relative rectilinear movement occurs for slide unit and ball-screw.Optionally, executing agency 2 and connection frame It is additionally provided with support device 23 between 13, can be used for fixed executing agency 2.
In the present embodiment, the first detection device 3 is fixed on the slide unit of executive device 2, can be with slide unit and rolling Ballscrew relative movement.Specifically, the first detection device 3 includes the 4th detection unit 31 and the 5th detection unit 32, such as Fig. 3 institute Show.Wherein, the 4th detection unit 31 is movably coupled to the first executing agency 21, and the 5th detection unit 32 and second executes machine Structure 22 is movably coupled to.That is, when the first executing agency 21 and the second executing agency 22 are ball-screw single line rail When slide unit, the 4th detection unit 31 and the 5th detection unit 32 are respectively and in the first executing agency 21 and the second executing agency 22 Slide unit is fixedly connected.When ball-screw controlled rotation, the 4th detection unit 31 and the 5th detection unit 32 are in corresponding slide unit Drive it is lower relatively moved with corresponding ball-screw so that the 4th detection unit 31 and the 5th detection unit 32 are positioned at the The top of one trouble area's rectilinear orbit A1 or second trouble area's curve track B2 can detecte acquisition first trouble area's rectilinear orbit A1 or the The state of two trouble area's curve track B2.
In the present embodiment, the end of the extension of first executing agency 21 and the second executing agency 22 has been more than even Connect the midpoint of frame 13.That is, when the first executing agency 21 and the second executing agency 22 are ball-screw single line rail slide unit When, slide unit moveable distance on ball-screw is greater than the half of 13 length of connection frame.
When device 1 out of shape is in along first trouble area's curve track B1 and second trouble area's curve track B2 moving process, the Increasing, the ball wire of the first executing agency 21 of the distance between one trouble area's curve track B1 and first trouble area's rectilinear orbit A1 Thick stick rotates under the control of control device 5, and with ball-screw relatively transverse movement occurs for the 4th detection unit 31, from close to first Laterally closer second fixed frame, 121 side of fixed frame 111 1 is gradually moved, so that the 4th detection unit 31 is always positioned at the first trouble The top of area rectilinear orbit A1, for detecting the state of first trouble area's rectilinear orbit A1.As first trouble area's curve track B1 and the One trouble the distance between area's rectilinear orbit A1 be greater than slide unit on ball-screw movably apart from when, the control of control device 5 the The ball-screws of two executing agencies 22 rotates, and with ball-screw relatively transverse movement occurs for the 5th detection unit 32, from close to the Laterally closer second fixed frame, 121 side of one fixed frame 111 1 is gradually moved, so that the 5th detection unit 32 is located at the first Cha Qu The top of rectilinear orbit A1 continues to test the state of the first trouble area rectilinear orbit A1, instead of the 4th detection unit 31 to avoid hair Raw missing inspection and so on.When device 1 out of shape is moved along first trouble area's rectilinear orbit A1 and second trouble area's rectilinear orbit A2 During dynamic, the distance between second trouble area's rectilinear orbit A2 and second trouble area's curve track B2 are increasing, and second executes machine The ball-screw of structure 22 rotates under the control of control device 5, and with ball-screw relatively transverse shifting occurs for the 5th detection unit 32 It is dynamic, it is gradually moved from close to laterally closer first fixed frame, 111 side of the second fixed frame 121 1, so that the 5th detection unit 32 It is always positioned at the top of the second trouble area curve track B2, for detecting the state of second trouble area's curve track B2.As the second Cha Qu The trouble of curve track B2 and second the distance between area's rectilinear orbit A2 be greater than slide unit on ball-screw movably apart from when, control Device 5 processed controls the ball-screw rotation of the first executing agency 21, and the 4th detection unit 31 occurs relatively transverse with ball-screw It is mobile, it is gradually moved from close to laterally closer first fixed frame, 111 side of the second fixed frame 121 1, so that the 4th detection unit 31 are located at the top of second trouble area's curve track B2, continue to test the second trouble area curve track B2's instead of the 5th detection unit 32 State, to avoid generation missing inspection.The present embodiment is divided using the 4th detection unit 31 and the 5th detection unit 32 The state of the first trouble of section measurement area's rectilinear orbit A1, the state of second trouble area's curve track B2 and first trouble area's rectilinear orbit A1 The opposite position of relative displacement, second trouble area's curve track B2 and second trouble area's rectilinear orbit A2 with first trouble area's curve track B1 It moves, it is possible to reduce the influence of cumulative errors.
Second detection device 4 includes first detection unit 41, second detection unit 42 and third detection unit 43, such as Fig. 3 It is shown.Wherein, first detection unit 41 is fixed on the first fixed frame 111, and second detection unit 42 is fixed on the second fixed frame On 121.When device 1 out of shape along first trouble area's curve track B1 and second trouble area's curve track B2 when moving, first is detected Unit 41 is used to detect the state for obtaining first trouble area's curve track B1, and second detection unit 42 obtains the second Cha Qu for detecting The state of curve track B2.When device 1 out of shape is moved along first trouble area's rectilinear orbit A1 and second trouble area's rectilinear orbit A2 When, first detection unit 41 is used to detect the state for obtaining first trouble area's rectilinear orbit A1, and second detection unit 42 is for detecting Obtain the state of second trouble area's rectilinear orbit A2.Preferably, first detection unit 41, the detection of second detection unit the 42, the 4th are single Member 31 and the 5th detection unit 32 be three-dimensional laser displacement sensor, can detecte trouble area's raceway surface structural form (for example, With the presence or absence of recess, pit-hole etc.), the wear law on the inside of trouble area's track and the height change situation etc. of area's track of branching off.
Third detection unit 43 and the second idler wheel 113 are coaxially connected, for measuring the state of the second idler wheel 113.Described Three detection units 43 are incremental encoder, can be used for detecting the turnning circle of the second idler wheel 113, can be according to the second idler wheel The circle number of 113 rotations calculates the mobile distance of the second idler wheel 113.In the present embodiment, adjacent trouble area rectilinear orbit and Cha Qu Curve track can regard two straight lines with predetermined angle α as.The predetermined angle α when obtaining the second idler wheel 113 it is known that exist Wherein moved on a track apart from when, according to the principle of trigonometric function, can calculate and get current second idler wheel, 113 institute Distance between the adjacent orbit of position.Control device 5 can control the 4th detection unit 31 or the 5th detection according to this distance Unit 32 is mobile, to detect the state of first trouble area's rectilinear orbit A1 or second trouble area's curve track B2.
Specifically, when device 1 out of shape along first trouble area's curve track B1 and second trouble area's curve track B2 move when, Third detection unit 43 is used to detect the second idler wheel 113 distance M1 mobile in first trouble area's curve track B1.According to triangle letter Several principles, can calculate and get the real-time range N1 of the first trouble area curve track B1 to first trouble area's rectilinear orbit A1 is M1 Multiplied by cos α, control device 5 can control the first executing agency 21 or the second execution machine according to the real-time range N1 finally obtained The lead screw of structure 22 (i.e. ball-screw single line rail slide unit) rotates, so that the 4th detection unit 31 or the 5th detection unit 32 are along rolling Ballscrew laterally moves to the top of the first trouble area rectilinear orbit A1, the scanning of the 4th detection unit 31 and the 5th detection unit 32 Beam orthogonal is in the rail section of track, so that device out of shape 1 in moving process, can pass through the 4th detection unit 31 and Five detection units, 32 real-time detection obtains the correlated condition parameter of first trouble area's rectilinear orbit A1.
When device 1 out of shape along first trouble area's rectilinear orbit A1 and second trouble area's rectilinear orbit A2 when moving, third is examined It surveys unit 43 and is used to detect the distance that the second idler wheel 113 moves on first trouble area's rectilinear orbit A1, that is, device out of shape 1 exists The distance moved on second trouble area's rectilinear orbit A2.According to the principle of trigonometric function, it can calculate and get the second trouble area straight line The real-time range N2 of the trouble of track A2 to second area's curve track B2 is M2 divided by cos α, and control device 5 can be obtained according to last Real-time range N2 control the lead screw rotation of the second executing agency 22 or the first executing agency 21 (i.e. ball-screw single line rail slide unit) Turn, so that the 5th detection unit 32 or the 4th detection unit 31 laterally move to the second trouble area curve track B2 along ball-screw Top, the scanning light beam of the 4th detection unit 31 and the 5th detection unit 32 perpendicular to track rail section so that out of shape Device 1 can obtain the second Cha Qu by the 4th detection unit 31 and 32 real-time detection of the 5th detection unit in moving process The correlated condition parameter of curve track B2.
Since in real life, the distance between adjacent trouble area curve track and trouble area's rectilinear orbit can become Change, but variable quantity is smaller, and be that a scanning surface is projected to track when the detection of three-dimensional laser displacement sensor, therefore, As long as can be carried out normally detecting, Bu Huiying when the covering of the scanning light beam of three-dimensional laser displacement sensor is in orbit Ring its detection accuracy.In another optional implementation, third detection unit 43 can be coaxially connected with the first idler wheel 112, uses In the state for measuring the first idler wheel 112;Alternatively, third detection unit 43 can also be coaxially connected with third idler wheel 122, for surveying The state of three idler wheel 122 of flow control.
In the present embodiment, the distance between first trouble area's curve track B1 and second trouble area's curve track B2 or first The distance between the trouble of the area's rectilinear orbit A1 and second area's rectilinear orbit A2 that branches off can be obtained according to detection.Due to trouble area's track it is inclined Difference and detection device is mobile asynchronous causes between trouble area's curve track that distance has detection between distance and trouble area's rectilinear orbit Error can specifically be modified detection system according to such as under type.As shown in figure 9, device 1 out of shape is in first trouble area's curve Mobile detection on the trouble of track B1 and second area's curve track B2.It is the second Cha Qu that H1, which is the first trouble area's curve track B1, H2, in figure Curve track B2.Area's rail detection system branch off when detecting, as first trouble area's curve track B1 and first trouble area's rectilinear orbit A1 The distance between less than the 4th detection unit 31 in the first executing agency 21 movably apart from when, the control of control device 5 the The mobile top for being always positioned at the first trouble area rectilinear orbit A1 of four detection units 31, the 5th detection unit 32 are always positioned at the second trouble The top of area curve track B2.At this point, the theoretical test point of trouble area's track is fallen at three point of A, B and C point, wherein A point, B point and C Three-dimensional laser displacement sensor at point is respectively the 5th detection unit 32, second detection unit 42 and first detection unit 41, For OC line perpendicular to track H1 and H2, measuring the distance between the area Liang Gecha curve track of acquisition is S.In actually detected process In, since the injustice of track is pliable, certain inclination can occur for device 1 out of shape, and A point, B point and C point become into A ', B ' and C ' There is angle theta in point, the line and H2 of A ' point and B ' point, and the three-dimensional laser displacement sensor (first detection unit 41) at C point goes out At present C ', then measuring the distance between the area Liang Gecha curve track of acquisition as S ', and the 5th detection unit 32, second The distance between detection unit 42 is that the distance between A ' point and B ' point are L.In order to improve the precision of trouble area's orbit measurement, work as A When there is difference along the lateral measurements of track in three-dimensional laser displacement sensor at point and B point, deviation d, then the first trouble Actual gauge value S between the trouble of area curve track B1 and second area's curve track B2 is the gauge value S ' of detection multiplied by cos (arcsin (d/L)), while H1 the and H2 rail profile size value scanned is also repaired multiplied by cos (arcsin (d/L)) coefficient Just.
When the distance between first trouble area's curve track B1 and first trouble area's rectilinear orbit A1 are greater than the 4th detection unit 31 In the first executing agency 21 movably apart from when, control device 5 control the 4th detection unit 31 be always positioned at the first Cha Qu The top of curve track B1, the mobile top for being always positioned at the first trouble area rectilinear orbit A1 of the 5th detection unit 32.At this point, Cha Qu The theoretical test point of track is fallen at three point of A, B and C point, as shown in Figure 10.The wherein three-dimensional laser position at A point, B point and C point Displacement sensor is respectively first detection unit 41, the 4th detection unit 31 and second detection unit 42, and OC line is perpendicular to track H1 And H2, measuring the distance between the area Liang Gecha curve track of acquisition is S.During atual detection, not due to track Certain inclination can occur for ride comfort, device 1 out of shape, and A point, B point and C point become into A ', B ' and C ' point, the company of A ' point and B ' point There is angle theta in line and H1, and the three-dimensional laser displacement sensor (second detection unit 42) at C point is at C ', then measuring The distance between the area Liang Gecha curve track of acquisition is S ', and between first detection unit 41, the 4th detection unit 31 The distance between distance i.e. A ' point and B ' point are L.In order to improve the precision of trouble area's orbit measurement, the three-dimensional laser at A point and B point When there is difference along the lateral measurements of track in displacement sensor, deviation d, then first trouble area's curve track B1 and second Actual gauge value S between trouble area's curve track B2 is the gauge value S ' of detection multiplied by cos (arcsin (d/L)), is swept simultaneously H1 the and H2 rail profile size value retouched also is modified multiplied by cos (arcsin (d/L)) coefficient.
Similarly, when device 1 out of shape mobile detection on first trouble area's curve track B1 and second trouble area's curve track B2. First trouble area's rectilinear orbit A1 and second trouble the distance between area's rectilinear orbit A2 can also be carried out according to the above method detection and Amendment.
Trouble area's rail detection system further includes multiple three dimension acceleration sensors 6, athletic posture detection device 7 and processing dress Set 9 (not shown)s.Wherein, processing unit 9 by control device 5 respectively with the first detection device 3, second detection device 4, Three dimension acceleration sensor 6, athletic posture detection device 7 communicate to connect, for storing and handling the first detection device 3, second The parameter that detection device 4, three dimension acceleration sensor 6, the measurement of athletic posture detection device 7 obtain, the people so that Cha Qu works Member can accurately be safeguarded to trouble area's track condition or overhaul.
Specifically, multiple three dimension acceleration sensors 6 are connect with device 1 out of shape, executive device 2 respectively, for detecting Shape dress sets 1 and the acceleration signal during the motion of executive device 2.Athletic posture detection device 7 is fixed on connection frame 13, For detecting the kinematic parameter (attitude parameter) when the device out of shape 1 is moved along trouble area's track.Device 1 out of shape and executive device 2 speed during the motion is different and since track irregularity causes the bounce amplitude of device 1 out of shape different, can be right The detection of first detection device 3 and second detection device 4 causes certain interference, influences the data that the two detects respectively, in turn Influence maintenance work of the staff to the track later period.Therefore, the present embodiment passes through three dimension acceleration sensor 6 and athletic posture 7 pairs of trouble area rail detection systems of detection device measure, and the parameter after measurement is then sent to processing by control device 5 Device 9, the data that processing unit 9 is measured according to three dimension acceleration sensor 6 and athletic posture detection device 7 fill the first detection Set 3 and second detection device 4 detect Orbit State Parameters be modified, with calculate obtain trouble area's track virtual condition parameter Deng raising measurement accuracy.
In the present embodiment, trouble area's rail detection system includes four three dimension acceleration sensors 6, is detected respectively with first Unit 41, second detection unit 42, the 4th detection unit 31, the 5th detection unit 32 are fixedly connected, and can detecte device 1 out of shape The acceleration signal of each detection unit during the motion carries out interference signal processing convenient for aftertreatment device 9, improves The measurement accuracy of detection unit.Optionally, athletic posture detection device 7 can be lasergyro, can detecte device 1 out of shape The pitch angle and roll angle of device out of shape 1 when movement on direction along ng a path (for indicating the irregularity character state of track).
Control device 5 respectively with the first detection device 3, second detection device 4, three dimension acceleration sensor 6, athletic posture Detection device 7 communicates to connect, the track condition data for collecting.In addition to this, control device 5 also and executive device 2 connections, for being rotated according to the track condition data control executive device 2 for receiving the acquisition of third detection unit 43, so that First detection device 3 relatively transverse can be moved to the top of the trouble of the first trouble area rectilinear orbit A1 or second area's curve track B2, The correlated condition parameter of first trouble area's rectilinear orbit A1 or second trouble area's curve track B2 can be obtained with real-time detection.Optionally, The control device 5 further includes display, can show trouble area track condition data and track that current detection device detects Structure etc. more has intuitive.The control device 5 can be industrial industrial personal computer etc..
The area's rail detection system that branches off further includes thrust mechanism 8.Thrust mechanism 8 is fixedly connected with device 1 out of shape, for pushing Device 1 out of shape is moved along track.Specifically, thrust mechanism 8 can be set to T-bar shape structure, and one end and connection frame 13 are fixed Connection, the other end extend outwardly.Preferably, it is comfortable that the height that the thrust mechanism 8 extends one end can be set to staff The height of work.
Processing unit 9 and control device 5 communicate to connect, for storing and processing the detection information of trouble area's track, institute The detection information of the area Shu Cha track includes structural form (for example, with the presence or absence of recess, pit-hole etc.), the Cha Qu of trouble area's raceway surface The height change situation etc. of wear law and trouble area's track on the inside of track.In addition to this, processing unit 9 can also be according to obtaining The detection information calculating for the trouble area's track got obtains practical inclined between adjacent trouble area's curve track and trouble area's rectilinear orbit Move the actual range between distance and the area Liang Gecha curve track, the actual range between the area Liang Gecha rectilinear orbit.Meanwhile Staff can judge the service condition of track according to the detection information of the trouble area track of acquisition, correspondingly be repaired to it Or replacement, to meet the needs of train normal operation.
Specifically, initially install trouble area's track after, will branch off area's track standard state parameter (height etc. of track) It is stored in processing unit 9.Meanwhile a datum mark is set near trouble area track, and with datum mark for each Cha Qu The origin of orbit measurement starts to detect the trouble area's track initially installed and arrives the distance of datum mark, and branch off between area's track away from From, and store into processing unit 9, the subsequent normal data that can be used as is compared, and can calculate trouble area's track Changing rule.Wherein, the initial information of datum mark includes the initial point position of trouble area's track and the model etc. of trouble area's track.It is described Datum mark needs are periodically calibrated, can be with some fixed buildings, such as waiting room for branching off near area's track etc. to benchmark It is fixed to click through rower.
When branching off area's track using after a certain period of time, when repairing detection to trouble area's track, (swashed by detection device first Optical displacement sensor) identification datum mark, to realize the self calibration of trouble area's rail detection system, then by controlling trouble area's track inspection Examining system moves on trouble area's track, successively obtains trouble area's track relative to the actual range of datum mark and the shape of trouble area's track State parameter can calculate the offset distance between adjacent trouble area's track according to the actual range of adjacent trouble area's track to datum mark Deng.Meanwhile trouble area's rail detection system can also pass through first detection unit 41, second detection unit 42, the 4th detection unit 31 and the 5th the detection of detection unit 32 obtain the structural form (for example, with the presence or absence of recess, pit-hole etc.) of trouble area's raceway surface, branch off The height change situation etc. of abrasion condition and trouble area's track on the inside of area's track.Processing unit 9 is by the track condition number of measurement According to compared with the standard state parameter of trouble area's track of storage, repaired you can learn which kind of carries out to trouble area's track in later period needs The underlying parameter operated again.Preferably, trouble area's rail detection system further includes remote administration terminal or movable termination, processing Device 9 can send remote administration terminal or movable termination by network for the track condition data calculated after analyzing On, for showing the Orbit State Parameters handled by analysis.
In another optional implementation, when trouble area's rail detection system again measures trouble area's track, processing Device 9 can also be compared point the Orbit State Parameters of double measurement on the basis of the Orbit State Parameters of this measurement Analysis obtains variation and the wear law of same trouble area's track, provides technical basis for trouble area's orbital maintenance.Wherein, every time to Cha Qu When track detecting, operator needs to carry out trouble area's track detection device to guarantee that detection device precision meets measurement from checking It is required that.
The high degree of automation of the embodiment of the present invention reduces the error of artificial observation, so that trouble area's track condition measurement Data are more accurate, and the orbital position data that are measured by the detection system of the control system and management platform are deposited Storage track condition data compare, and control executing agency's work, the area Shi Cha track condition measurement data is more accurate, realizes Closed-loop measuring, measurement result are more accurate.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art For, the invention can have various changes and changes.All any modifications made within the spirit and principles of the present invention are equal Replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of trouble area rail detection system, comprising:
Device (1) out of shape is configured as moving along the predetermined direction of trouble area's track, and trouble area's track includes first trouble area's straight line Track (A1), the second trouble area's rectilinear orbit (A2), the first trouble area's curve track (B1), the second trouble area's curve track (B2), it is described First trouble area's rectilinear orbit (A1) and the first trouble area's curve track (B1) connection, second trouble area's rectilinear orbit (A2) and second Trouble area's curve track (B2) connection;
Executive device (2) is fixedly connected with the device (1) out of shape;
First detection device (3) is movably coupled to the executive device (2), for detecting first trouble area's rectilinear orbit (A1) or second trouble area's curve track (B2);
Second detection device (4) is fixedly connected with the device (1) out of shape, for detect first trouble area's curve track (B1) and Second trouble area's curve track (B2), alternatively, the first trouble area's rectilinear orbit (A1) of detection and the second trouble area's rectilinear orbit (A2);
Control device (5) is configured as controlling the executive device (2) according to the detection information of the second detection device (4) Relatively transverse to move so that first detection device (3) is located at first Cha Qu straight with first detection device (3) The top of trajectory (A1) or the second trouble area's curve track (B2).
2. detection system according to claim 1, which is characterized in that the device (1) out of shape includes:
First mechanism (11) out of shape, including the first fixed frame (111), the first idler wheel (112) and the second idler wheel (113), described One idler wheel (112) and the second idler wheel (113) are respectively arranged at the both ends of first fixed frame (111);
Second mechanism (12) out of shape, including the second fixed frame (121) and third idler wheel (122), second mechanism (12) out of shape It is oppositely arranged with the described first mechanism (11) out of shape;
Connection frame (13), for connecting first fixed frame (111) and the second fixed frame (121), so that described first walks Shape mechanism (11) and second mechanism (12) out of shape are moved along trouble area's track simultaneously.
3. detection system according to claim 2, which is characterized in that the executive device (2) includes:
First executing agency (21), one end are fixedly connected with first fixed frame (111), and the other end is to the described second machine out of shape Structure (12) extends;
Second executing agency (22), one end are fixedly connected with second fixed frame (121), and the other end is to the described first machine out of shape Structure (11) extends.
4. detection system according to claim 3, which is characterized in that the second detection device (4) includes:
First detection unit (41) is fixed on first fixed frame (111);
Second detection unit (42) is fixed on second fixed frame (121);
Third detection unit (43), it is coaxially connected with second idler wheel (113), for measuring second idler wheel (113) State.
5. detection system according to claim 4, which is characterized in that first detection device (3) includes:
4th detection unit (31) is movably coupled to first executing agency (21), first executing agency (21) It is configured as being relatively moved according to the state of second idler wheel (113) and the 4th detection unit (31);
5th detection unit (32) is movably coupled to second executing agency (22), second executing agency (22) It is configured as being relatively moved according to the state of second idler wheel (113) and the 5th detection unit (32).
6. detection system according to claim 5, which is characterized in that the first detection unit (41), the second detection are single First (42), the 4th detection unit (31) and the 5th detection unit (32) are three-dimensional laser displacement sensor;The third detection is single First (43) are incremental encoder.
7. detection system according to claim 5, which is characterized in that the detection system further include:
Multiple three dimension acceleration sensors (6), connect, for examining respectively with the device (1) out of shape and the executive device (2) Survey the acceleration of the device out of shape (1) and the executive device (2) during the motion;
Athletic posture detection device (7), is fixed on the connection frame, moves for detecting the device out of shape along trouble area's track When kinematic parameter.
8. detection system according to claim 7, which is characterized in that the executive device (2) is ball-screw single line rail Slide unit, the athletic posture detection device (7) are lasergyro.
9. detection system according to claim 1, which is characterized in that the detection system further include:
Thrust mechanism (8) is fixedly connected with the device (1) out of shape.
10. detection system according to claim 1, which is characterized in that the detection system further include:
Processing unit (9) is connect with the control device (5), for storing and processing the detection information of trouble area's track.
CN201910304044.6A 2019-04-16 2019-04-16 Trouble area's rail detection system Pending CN109895807A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201910304044.6A CN109895807A (en) 2019-04-16 2019-04-16 Trouble area's rail detection system
CN201910865896.2A CN110497931B (en) 2019-04-16 2019-09-12 Method for detecting track state of turnout zone
CN201910865898.1A CN110497932B (en) 2019-04-16 2019-09-12 Switch zone track detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910304044.6A CN109895807A (en) 2019-04-16 2019-04-16 Trouble area's rail detection system

Publications (1)

Publication Number Publication Date
CN109895807A true CN109895807A (en) 2019-06-18

Family

ID=66955752

Family Applications (3)

Application Number Title Priority Date Filing Date
CN201910304044.6A Pending CN109895807A (en) 2019-04-16 2019-04-16 Trouble area's rail detection system
CN201910865898.1A Active CN110497932B (en) 2019-04-16 2019-09-12 Switch zone track detection system
CN201910865896.2A Active CN110497931B (en) 2019-04-16 2019-09-12 Method for detecting track state of turnout zone

Family Applications After (2)

Application Number Title Priority Date Filing Date
CN201910865898.1A Active CN110497932B (en) 2019-04-16 2019-09-12 Switch zone track detection system
CN201910865896.2A Active CN110497931B (en) 2019-04-16 2019-09-12 Method for detecting track state of turnout zone

Country Status (1)

Country Link
CN (3) CN109895807A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112149622B (en) * 2020-10-16 2022-02-18 北京理工大学 Railway turnout identification method and system
CN114624637B (en) * 2022-04-21 2023-07-14 西南交通大学 Permanent magnet track three-dimensional magnetic field scanning device and scanning method thereof
CN117146721B (en) * 2023-09-11 2024-04-05 铁科(北京)轨道装备技术有限公司 Rail parameter measuring ruler

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2566875B2 (en) * 1993-08-06 1996-12-25 東日本旅客鉄道株式会社 Crossing wear amount measuring device
CN205997898U (en) * 2016-08-31 2017-03-08 武汉汉宁轨道交通技术有限公司 A kind of railway switch detects dolly
CN107089244B (en) * 2017-04-10 2018-09-18 浙江大学 A kind of railway switch damage detection system
CN207828716U (en) * 2018-01-05 2018-09-07 中铁宝桥(南京)有限公司 A kind of more applicability track switch geometry state automatic checkout equipments
CN210027450U (en) * 2019-04-16 2020-02-07 北京华横科技有限公司 Switch zone track detection system

Also Published As

Publication number Publication date
CN110497932A (en) 2019-11-26
CN110497932B (en) 2020-11-27
CN110497931B (en) 2020-10-09
CN110497931A (en) 2019-11-26

Similar Documents

Publication Publication Date Title
CN106274981B (en) A kind of track detection device and detection method
CN110497932A (en) Trouble area's rail detection system
CN102251451B (en) Track geometric state measurement system and method based on multisource information fusion technology
CN201158385Y (en) Instrument for accurately testing high-speed railway rails
CN105277129B (en) A kind of contactless gauge measuring system of laser range sensor dynamic
CN205589249U (en) Track inspection dolly
CN106769116A (en) A kind of high ferro bogie on-line automatic detection device
CN202368604U (en) Detecting device for dynamically detecting heights of left and right steel rails of railway track
CN107380204A (en) Orbit geometry parameter detects car and orbit geometry parameter detection method
FI80790B (en) FOERFARANDE OCH ANORDNING FOER BESTAEMNING AV ETT SPAORS LAEGE.
CN102012211B (en) Three pairs of sliding pair-spherical hinge-spherical hinge (3-PSS) mechanism-based coordinate measuring machine
CN2778867Y (en) Orbit static geometrical parameter detecting vehicle.
CN109594439A (en) A kind of track geometric parameter measurement method being applied in combination based on GNSS/INS and total station
CN106441091A (en) Steel rail automatic detection device and method
CN102962728A (en) Device for detecting position of center of ball joint
CN103862327A (en) Ball joint center position detecting method
JP2019074428A (en) Measurement device and method of construction limit in railway
CN104908775A (en) Non-contact steel rail abrasion detecting device
CN106247995A (en) A kind of ship lift guide rail parallelism measuring method
CN207274715U (en) Orbit geometry parameter detects car
CN103486983B (en) In extraordinary elongated tubular, thorax spiral-line straightness error detection device surveys head
CN210027450U (en) Switch zone track detection system
CN204688131U (en) Non-contact steel rail Abrasion detecting device
CN207894579U (en) Rail traffic bridge degree of disturbing detection device
CN201476798U (en) Optical-fiber gyro track testing device

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
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Kong Deshun

Inventor after: Jiang Huifeng

Inventor after: Li Yuanlong

Inventor after: Liang Fengqing

Inventor after: Zhou Yonggui

Inventor after: Wang Min

Inventor after: Liu Yue

Inventor after: Yang Qi

Inventor after: Fu Qingxi

Inventor after: Li Shilin

Inventor after: An Aimin

Inventor after: Duan Xiaojun

Inventor after: Li Xuebao

Inventor after: Hu Zhibo

Inventor before: Kong Deshun

Inventor before: Jiang Huifeng

Inventor before: Li Yuanlong

Inventor before: Liang Fengqing

Inventor before: Zhou Yonggui

Inventor before: Wang Min

Inventor before: Liu Yue

Inventor before: Yang Qi

Inventor before: Fu Qingxi

Inventor before: Li Shilin

Inventor before: An Aimin

Inventor before: Duan Xiaojun

Inventor before: Li Xuebao

Inventor before: Hu Zhibo

WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20190618