CN112575637B - Joint type turnout line type detection method - Google Patents
Joint type turnout line type detection method Download PDFInfo
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- CN112575637B CN112575637B CN201910935022.XA CN201910935022A CN112575637B CN 112575637 B CN112575637 B CN 112575637B CN 201910935022 A CN201910935022 A CN 201910935022A CN 112575637 B CN112575637 B CN 112575637B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B35/00—Applications of measuring apparatus or devices for track-building purposes
- E01B35/06—Applications of measuring apparatus or devices for track-building purposes for measuring irregularities in longitudinal direction
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Abstract
The present disclosure relates to a method for detecting articulated turnout profiles, which is used to overcome the problem in the related art that articulated turnout profile detection cannot be performed due to the fact that the related distance value cannot be measured on site. The method comprises the following steps: selecting one of the turnout beams as a target turnout beam (1), and determining a marking point on the target turnout beam (1); determining a reference point on the surface of the ground substrate (G) according to the marking point; moving the target turnout beam (1) to a position to be measured, and projecting the mark point onto the surface of a ground substrate (G) at a preset angle to obtain a projection point; measuring an actual distance between the projected point and the reference point; and determining whether the current linear type of the target turnout beam (1) is a preset linear type or not according to the comparison result of the actual distance and the theoretical distance.
Description
Technical Field
The disclosure relates to the technical field of turnouts, in particular to a joint type turnout line type detection method.
Background
The turnout is important equipment for realizing switching among multiple tracks and widely exists on a railway line. The turnout line type is the basis of route planning, and the accuracy of the turnout line type directly influences the accuracy of butt joint with a turnout beam, so that the smoothness of a train passing through is influenced. Therefore, after the switch is installed and before the switch is put into use, the switch needs to be debugged, that is, the line type of the switch is detected and corrected.
In the related art, referring to fig. 1, the line type detection of the turnout is mainly performed in the following manner: when the turnout is installed, the turnout beam is adjusted to be connected with the track beam at the end part E. And then the turnout beam locking bottom plate is firmly welded with the mounting bottom plate. Then, the origin of the theodolite is adjusted to the switching center point a of the whole turnout, and a marker is placed on the intersection point B, C, D, E of the central lines of every two turnout beams. And finally, adjusting the positions of the AB, BC, CD and DE related turnout beams respectively to enable the included angles between the F, B, C, D, E adjacent two points taking the A as the vertex to be equal, and realizing the linear detection of the turnout. However, in actual installation, the point a is covered by the track beam, the total station cannot be set at the point a, and the hinge point of the two beams of the points B, C, D and E cannot be accurately led out in actual installation, so that the position error of the site marking point is large.
Disclosure of Invention
The purpose of the present disclosure is to provide a method for detecting the line type of an articulated turnout, which is convenient to implement and can ensure the accuracy.
In order to achieve the above object, the present disclosure provides an articulated switch line type detecting method, the articulated switch including a plurality of switch beams sequentially articulated, the method including:
selecting one of the turnout beams as a target turnout beam, and determining a marking point on the target turnout beam;
determining a reference point on the surface of the ground substrate according to the mark point;
moving the target turnout beam to a position to be measured, and projecting the mark point onto the surface of the ground substrate at a preset angle to obtain a projection point;
measuring an actual distance between the projected point and the reference point;
and determining whether the current linear type of the target turnout beam is a preset linear type or not according to the comparison result of the actual distance and the theoretical distance.
Optionally, the determining whether the current line type of the target turnout beam is a preset line type according to the comparison result between the actual distance and the theoretical distance includes:
and if the distance difference between the actual distance and the theoretical distance is within a preset difference range, determining that the current line type of the target turnout beam is the preset line type, and judging that the position to be detected is the required position.
Optionally, the determining whether the current line type of the target turnout beam is a preset line type according to the comparison result between the actual distance and the theoretical distance includes:
if the distance difference between the actual distance and the theoretical distance is not within the preset difference range, determining that the current line type of the target turnout beam is not the preset line type, and judging that the position to be detected is not the required position;
the method further comprises the following steps:
adjusting the position to be measured of the target turnout beam according to the distance difference between the actual distance and the theoretical distance;
and performing line type detection on the target turnout beam after the position is adjusted.
Optionally, the adjusting the position to be measured of the target turnout beam according to the distance difference between the actual distance and the theoretical distance includes:
determining the position offset of the target turnout beam in the current line type relative to the target turnout beam in the preset line type according to the distance difference between the actual distance and the theoretical distance;
and determining the adjustment direction and the adjustment displacement of the target turnout beam according to the position offset, and moving the target turnout beam along the adjustment direction by the adjustment displacement.
Optionally, the ground base plate is provided with a lock groove having a basic width, the target turnout beam is carried by a trolley, the trolley is provided with a locking piece which can stretch and retract to be inserted into the lock groove or withdrawn from the lock groove, backing plates are arranged on two sides of the locking piece in the width direction of the lock groove so as to position the locking piece in the lock groove when the locking piece is inserted into the lock groove, the width direction is parallel to the adjusting direction, and the backing plates have a basic thickness,
the determining an adjustment direction and an adjustment displacement of the target turnout beam according to the position offset, and moving the target turnout beam along the adjustment direction by the adjustment displacement, includes:
determining the number of backing plates required by one side of the locking piece according to the adjusting direction and the adjusting displacement;
and adjusting the quantity of the base plates on two sides of the locking piece according to the required quantity of the base plates so as to adjust the position of the locking piece in the locking groove and further adjust the position of the trolley and the target turnout beam borne by the trolley.
Optionally, the projecting the marker point onto the surface at a preset angle to obtain a projected point includes:
connecting a mass pendant at the mark point, wherein a laser source is arranged in the mass pendant, the mass pendant is provided with a hanging point for connecting to the mark point through a flexible rope, and laser emitted by the laser source is collinear with the hanging point;
putting down the mass plummet;
and starting a laser source after the mass plummet is static, wherein the point on the surface, which is irradiated by the light beam emitted by the laser source, is the projection point.
Optionally, the articulated switch is a multiple switch, one end for interfacing with a first switch beam and the other end for selectively interfacing with one of a plurality of second switch beams, one of the plurality of second switch beams being collinear with the first switch beam to define a linear rail,
determining a reference point on the surface of the ground substrate according to the mark point, comprising:
and when the target turnout beam is in butt joint with a second turnout beam which is collinear with the first turnout beam, projecting the mark point onto the surface at the preset angle, wherein the obtained projection point is the reference point.
Optionally, the number of the marking points is at least two, the marking points are selected from two ends of the target turnout beam in the extension direction, and the reference points correspond to the marking points one to one.
Optionally, the target turnout beam has a plurality of side faces perpendicular to the surface of the ground base plate, two adjacent side faces intersect to form a vertical edge, and the mark point is located on the vertical edge.
Optionally, the mark points are located on the vertical edges of the same side.
Through the technical scheme, after the switch installation is accomplished, can project the current line type of switch roof beam on the coplanar (being the surface of foundation slab G) with the form of point, then carry out distance calculation on this plane, detect with realizing the switch line type, not only implement easily, but also can ensure measuring degree of accuracy, overcome in the correlation technique because the unable problem that can't carry out the switch line type detection that leads to of direct measurement correlation parameter value, can improve the detection efficiency of switch line type, and the accuracy of switch roof beam and switch roof beam butt joint when having improved the switch in the use, be of value to improving the ride comfort when the train passes through the switch.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a schematic diagram illustrating a related art linear detection process for articulated switches;
FIG. 2 is a flow chart illustrating a method of articulated switch line type detection according to an exemplary embodiment of the present disclosure;
fig. 3 is a schematic perspective view of a marking point on a target switch beam in a articulated switch line type detection method according to an exemplary embodiment of the present disclosure;
fig. 4 is a schematic top view of a marker on a target switch beam in a articulated switch line type detection method according to another exemplary embodiment of the present disclosure;
FIG. 5 is a schematic diagram illustrating projected points and reference points on a ground plate in a method for articulated switch line detection according to an exemplary embodiment of the present disclosure;
fig. 6 is a schematic diagram illustrating the adjustment of the number of tie plates on both sides of a target switch beam in a articulated switch line type detection method according to an exemplary embodiment of the present disclosure;
fig. 7 is a schematic diagram illustrating the adjustment of the number of tie plates on both sides of a target switch beam in a articulated switch line type detection method according to another exemplary embodiment of the present disclosure;
FIG. 8 is a schematic diagram illustrating the adjustment of the number of tie plates on both sides of a target switch beam in a articulated switch line type detection method according to yet another exemplary embodiment of the present disclosure;
fig. 9 is a flow chart illustrating a method for articulated switch line type detection according to another exemplary embodiment of the present disclosure.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise stated, directional terms such as lateral and longitudinal are defined based on the track, longitudinal means the extending direction of the track, and lateral is understood to be the width direction of the track. The words used above are words of description and illustration of the disclosure, rather than words of limitation.
In the method for detecting the line type of the articulated turnout provided by the present disclosure, the articulated turnout may be a multi-opening turnout, such as a three-opening turnout, a five-opening turnout, and the like, one end of which is used for abutting against a first turnout beam and the other end of which is used for selectively abutting against one of a plurality of second turnout beams, thereby realizing rail transfer. For multiple switches, the switch line type of the switch on each strand rail needs to be detected, and the detection of the switch line type on a certain strand rail can be implemented as the detection of the line type of each switch beam in the switch, wherein the line type of each switch beam can be detected by adopting the same detection mode. Therefore, the line type detection method provided by the disclosure can be understood as the detection of the line type of the turnout beam.
For ease of description, the terms "front" and "rear" may be used to define the switch beam as a rear end adjacent the end of the first switch beam and a front end adjacent the end of the second switch beam. Generally, a turnout beam in an articulated turnout is carried by a trolley, and a switch machine drives the turnout beam and the trolley to move so as to realize rail change. Wherein a trolley is arranged below the front end and the rear end of each turnout beam to provide stable support. In the case of two articulated switch beams, a common bogie is usually provided at the joint, on which common bogie the front end of the rear switch beam and the rear end of the front switch beam are supported. After the turnout is subjected to rail transfer, the trolley needs to be locked, namely the position of a turnout beam on the trolley is locked, so that the running stability and running safety of the vehicle are ensured. In one embodiment, the locking of the trolley is realized by the cooperation of the locking groove 3 arranged on the ground substrate G and the locking piece 2 on the trolley. Wherein, the locked groove 3 has basic width in orbital transverse direction, and locking member 2 can stretch out and draw back in order to insert in locked groove 3 or withdraw from locked groove 3, and locking member 2's both sides can be provided with backing plate 4 in the width direction of locked groove 3, fixes a position locking member 2 in locked groove 3 through backing plate 4 to realize the locking of platform truck, make the switch roof beam keep current line type.
Fig. 2 is a flow chart illustrating a method of articulated switch line type detection according to an exemplary embodiment of the present disclosure. Referring to fig. 2, the articulated switch includes a plurality of switch beams sequentially articulated, and the articulated switch line type detection method may include the steps of:
step S201, selecting one of the turnout beams as a target turnout beam 1, and determining a mark point on the target turnout beam 1.
In order to improve the accuracy of the detection result, the number of the marking points can be at least two, and the marking points are selected from two ends of the target turnout beam 1 in the extension direction, so that the detected turnout line type can reflect the real line type of the target turnout beam 1 more accurately. In this case, the reference points need to correspond one-to-one to the mark points.
In one embodiment, the target switch beam 1 is configured to have a plurality of sides perpendicular to the surface of the ground substrate G, for example, as shown in fig. 3, the target switch beam 1 is configured in a rectangular parallelepiped structure, and two adjacent sides intersect to form a vertical edge on which the marking point is located in order to facilitate the acquisition of the marking point. In addition, the mark points may be located on the vertical edge of the same side, which facilitates the implementation of the projection in step S202 described below.
Referring to fig. 3, the target switch beam 1 has three side surfaces H1, H2, H3 which are adjacent in sequence and perpendicular to the surface of the ground base plate G, wherein a marking point M1 is selected on the vertical edge where the surfaces H1 and H2 intersect, and a marking point M2 is selected on the vertical edge where the surfaces H2 and H3 intersect.
Of course, the marker points may be selected from a side surface perpendicular to the surface of the ground base plate G, for example, as shown in fig. 4, the marker point M1 and the marker point M2 are selected from a side surface parallel to the extending direction of the target switch beam 1.
It should be understood that the above description is only exemplary of the marking points and is not intended to limit the embodiments of the present disclosure, and in the specific implementation of the present disclosure, different marking points may be determined according to the actual situation of the switch beam.
Step S202, determining a reference point on the surface of the ground substrate G according to the mark point. Illustratively, according to the above example, the reference point may be determined on the surface of the ground substrate G according to the marking point M1 and the marking point M2.
In one embodiment, there is one of the plurality of second fork beams being collinear with the first fork beam to define a linear rail. In this case, the reference point can be obtained in this way: moving the target turnout beam 1 to a second turnout beam which is in butt joint with the first turnout beam in a collinear way; and projecting the mark points onto the surface of the ground substrate G at a preset angle, wherein the obtained projection points are used as reference points.
The accuracy of the butt joint between the target turnout beam 1 and the second turnout beam in the linear rail can be ensured in a wire pulling mode, namely a linear wire rope can be pulled between the first turnout beam and the second turnout beam and used as a scale to move the target turnout beam 1, and the required butt joint accuracy can be obtained. Thereafter, the projection may be performed in the manner in the above-described step S202, so as to obtain the projected point of the mark point of the target switch beam 1 on the surface of the ground substrate G when being on the straight track, which may be used as the reference point.
In another embodiment, none of the second switch beams is collinear with the first switch beam, i.e., all of the switches are curved rails. In this case, the reference point can be obtained in this way:
a straight line is drawn from the first fork beam, and a reference point is selected on the straight line.
Theoretically, when the joint type turnout is straightened from the first turnout beam, the reference point and the marking point are correspondingly superposed. Thus, the length of the articulated switch may be measured, and then the distance from the selected marker point to a certain end face of the target switch beam 1 (which may be, for example, the end face facing the second switch beam) may be measured, either by means of a tape measure or the like. Then, the length can be measured along a straight line from a projection point of a certain point of the end surface of the first turnout beam on the ground substrate G, and then the distance can be measured back, wherein the certain point is not selected randomly, the transverse position of the point on the first turnout beam corresponds to the transverse position of the marking point on the target turnout beam 1, and thus, the distance can be measured back to obtain the reference point corresponding to the marking point.
Step S203, moving the target turnout beam 1 to a position to be measured, and projecting the mark point onto the surface of the ground substrate G at a preset angle to obtain a projection point.
Among them, in the embodiments provided in this disclosure, the preset angle can be conveniently set as required. In an embodiment, the predetermined angle is perpendicular to the surface of the ground substrate G, in which case, the process of projecting the mark point onto the surface of the ground substrate G at the predetermined angle to obtain the projected point may be: and connecting a mass pendant at the mark point, wherein the mass pendant can be internally provided with a laser source, and the mass pendant is provided with a hanging point for connecting to the mark point through a flexible rope, and the laser emitted by the laser source is collinear with the hanging point. After that, the mass sinker is set down. And starting the laser source after the mass plummet is static, wherein the point of the beam emitted by the laser source, which is irradiated on the surface of the ground substrate G, is the projection point. Of course, in other embodiments of the present disclosure, quicksand, water droplets, or the like may be used instead of the laser source to acquire the projected points. In this regard, the present disclosure is not particularly limited.
In the embodiment shown in fig. 5, the articulated switch has three line types, corresponding to the straight line rail, the left switch 1 rail and the left switch 2 rail, and the position of the target switch beam 1 corresponds to the straight line position, the left switch 1 position and the left switch 2 position. Fig. 5 shows the projected points of the marker point M1 and the marker point M2 of the target switch beam 1 in fig. 4 at the straight line position, the left switch 1 position and the left switch 2 position, which are M11 and M21, M12 and M22, and M13 and M23.
It should be noted that although fig. 5 shows three line-type projected points of the target switch beam 1, in the detection method of the present disclosure, it is necessary to detect one switch line type and then detect the second switch line type, and therefore, the acquisition of the projected points of the target switch beam 1 at the straight line position, the left switch 1 position and the left switch 2 position in fig. 5 is not synchronous or centralized in the same step.
Step S204, measuring the actual distance between the projection point and the reference point.
In this step, the actual distance between the projected point and the reference point on the surface of the ground substrate G can be easily measured using a measuring tape or the like.
And S205, determining whether the current linear type of the target turnout beam 1 is a preset linear type according to the comparison result of the actual distance and the theoretical distance.
For example, the theoretical distance may be obtained by labeling in the switch design process, that is, the theoretical distance may be a distance between the mark point and the reference point when the target switch beam 1 is in the preset linear shape, so that by comparing the theoretical distance with the measured actual distance, it may be determined whether the current linear shape of the target switch beam 1 is the preset linear shape.
If the current line type of the target turnout beam 1 is a preset line type, the line type of the target turnout beam 1 can be indicated to be correct, the position to be detected is a required position or a correction position, and therefore the line type detection process of the target turnout beam 1 in the corresponding line rail can be finished, in the using process, the position of the target turnout beam 1 in the process of changing the rail into the corresponding line rail is fixed and is the required position or the correction position, and therefore the accuracy of the butt joint of the turnout beam and the second turnout beam in each rail changing process can be guaranteed. Under the condition that the current line type of the target turnout beam 1 is a preset line type, the projection point corresponding to the mark point can be used as a reference point in the line type detection process of the target turnout beam 1 in other line rails.
For example, in the embodiment shown in fig. 5, if the current straight line position of the target switch beam 1 and the left switch 1 position are detected and determined to be the corresponding required position or the correction position, the corresponding projection points of the marker M1 and the marker M2 are: m11 and M21, M12 and M22 can be used as reference points in the process of detecting the line type of the target turnout beam 1 in the left turnout 2 rail. In this case, a verification of the switch profile can be carried out, namely: based on the measured distance a between the point M11 and the point M13, the distance B between the point M12 and the point M13, the distance C between the point M11 and the point M12, the distance D between the point M22 and the point M23, the distance E between the point M21 and the point M23, and the distance F between the point M21 and the point M22, if the distance a, the distance B, and the distance C can constitute a closed-loop size value (i.e., the triangular relationship formed by a, B, and C is a theoretical triangular relationship within an allowable tolerance range), the distance D, the distance E, and the distance F can constitute a closed-loop size value (i.e., the triangular relationship formed by E, D, and F is a theoretical triangular relationship within an allowable error range), it is determined that the left switch 2 position where the target switch beam 1 is currently located is a desired position or a corrected position, the current line type is a preset line type, and the distance B therein can be used to determine whether the measured three ABC distances can constitute a closed-loop size value, accordingly, the distance D can be used to determine whether the three measured DEF distances constitute a closed loop dimension value. And such checking may also be used as a pre-determination prior to step S205.
And if the target turnout beam 1 is not in the preset line type, the current line type of the target turnout beam 1 is incorrect, the position to be detected of the target turnout beam 1 needs to be adjusted, and the line type of the target turnout beam 1 is detected again. The possible ways of adjusting the position to be measured of the target switch beam 1 will be explained later.
In an embodiment, if the distance difference between the actual distance and the theoretical distance is within a preset difference range, determining that the current line type of the target turnout beam 1 is the preset line type, and determining that the position to be measured is the required position.
For example, the preset difference range may be set according to actual conditions, for example, the preset difference range may be set to 0, in which case, when the actual distance is the same as the theoretical distance, the current line type of the target switch beam 1 is determined to be the preset line type. Alternatively, the preset difference range may be set to any value range greater than 0, and the like, which is not limited in the embodiment of the disclosure.
In this way, after the switch installation is accomplished, can project the current line type of switch roof beam on the coplanar (being the surface of foundation slab G) with the form of point, then carry out distance calculation on this plane, detect with realizing the switch line type, not only implement easily, but also can ensure measuring degree of accuracy, overcome in the correlation technique because the unable problem that can't carry out the switch line type detection that leads to of the relevant distance value of direct measurement, can improve the detection efficiency of switch line type, the accuracy of switch roof beam and switch roof beam butt joint when having improved the switch change in the use, be of value to the ride comfort when improving the train and passing through the switch.
In another embodiment, if the distance difference between the actual distance and the theoretical distance is not within a preset difference range, it is determined that the current line type of the target turnout beam 1 is not a preset line type, and it is determined that the position to be measured is not the required position. Furthermore, the position to be detected of the target turnout beam 1 can be adjusted according to the distance difference between the actual distance and the theoretical distance, and linear detection is carried out on the target turnout beam 1 after the position is adjusted.
That is, in the embodiment of the present disclosure, if the current line type of the target switch beam 1 is incorrect, the position to be measured of the target switch beam 1 may be adjusted according to the deviation value of the test value and the theoretical value, the adjustment amount is determined each time, the operation is easy, and the adjustment efficiency is high. In addition, after the position to be detected of the target turnout beam 1 is adjusted, the line type of the target turnout beam 1 after the position is adjusted can be detected again until the current line type of the target turnout beam 1 is the preset line type.
In one embodiment, the process of adjusting the position of the target switch beam 1 may be: firstly, according to a distance difference between an actual distance and a theoretical distance, determining the position offset of a target turnout beam 1 in a current line type relative to a target turnout beam 1 in a preset line type, then determining the adjustment direction and the adjustment displacement of the target turnout beam 1 according to the position offset, and moving the target turnout beam 1 along the adjustment direction by the adjustment displacement.
In the above-mentioned embodiment of the locking groove 3 and the locking member 2, the base plate 4 may be defined to have a basic thickness, so that the position of the locking member 2 in the locking groove 3 is adjusted by adjusting the number of the base plates 4 on both sides of the locking member 2, thereby adjusting the position of the bogie in the lateral direction, and further adjusting the position of the target switch beam 1. In this embodiment, the position of the target switch beam 1 is adjusted in units of the basic thickness of the tie plate 4, and the adjustment direction is substantially the lateral direction. When the target turnout beam 1 is at the position to be measured, the number of the base plates 4 on two sides of the locking piece 2 is determined. The number of the backing plates 4 required by one side of the locking member 2 can be determined according to the adjusting direction and the adjusting displacement, wherein the adjusting direction is parallel to the width direction; and then adjusting the quantity of the backing plates 4 on the two sides of the locking piece 2 according to the quantity of the required backing plates 4 so as to adjust the position of the locking piece 2 in the locking groove 3 and further adjust the position of the trolley and the target turnout beam 1 borne by the trolley.
For example, determining the position offset according to the distance difference between the actual distance and the theoretical distance may be: determining the current position of the target switch beam 1 to be deviated to the left or to the right according to the distance difference, wherein for convenience of description, it may be defined that when the target switch beam is in the preset line type, the second switch beam is located right in front of the target switch beam (corresponding to the second switch beam being located on the right side of the target switch beam 1 when fig. 5, where the orientation "right" here is the orientation corresponding to the right hand when facing the paper surface), and based on this, the position offset may be used to indicate the distance that the target switch beam 1 in the current line type is deviated to the left or to the right relative to the target switch beam 1 in the preset line type. It should be noted that the following directional terms "left" and "right" are defined based on the "front" direction herein.
For example, referring to fig. 5, assuming that the line type corresponding to the current position of the target switch beam 1 on the straight-line rail is determined to be a preset straight-line type, that is, the points M11 and M21 may be used as reference points, based on which the line type when the target switch beam 1 is at the current position on the left switch 1 rail needs to be detected, if the measured actual distance F is greater than the theoretical distance F and the measured actual distance C is greater than the theoretical distance C, it may be determined that the position of the target switch beam 1 is deviated to the left, and the distance that the rear end of the target switch beam 1 is deviated to the left may be determined according to the distance difference between the actual distance F and the theoretical distance F, and the distance that the front end of the target switch beam 1 is deviated to the left may be determined according to the distance difference between the actual distance C and the theoretical distance C.
Conversely, if the measured actual distance F is less than the theoretical distance F and the measured actual distance C is less than the theoretical distance C, it may be determined that the position of the target switch beam 1 is on the right. And the distance of the rear end of the target turnout beam 1 deviating to the right can be determined according to the distance difference between the actual distance F and the theoretical distance F, and the distance of the front end of the target turnout beam 1 deviating to the right can be determined according to the distance difference between the actual distance C and the theoretical distance C.
After the position offset of the target turnout beam 1 is determined, namely the front end/rear end of the target turnout beam 1 is determined to be deviated leftwards or rightwards, and after the specific distance offset is determined, the number of the base plates 4 on two sides of the locking piece 2 can be adjusted according to the position offset and the preset corresponding relation between the number of the base plates 4 and the position offset. For example, in the above example, if the front end position of the target switch beam 1 is shifted to the left, the number of the backing plates 4 added to the left side of the lock member 2 at the front end and the number of the backing plates 4 decreased to the right side of the lock member 2 at the front end may be determined according to the preset correspondence, so that the right movement of the target switch beam 1 is realized.
It will be understood that the target switch beam 1 has an initial position to be measured, corresponding to an equal number of tie plates 4 on both sides of the locking member 2 inserted into the locking groove 3, as shown in fig. 6, for example. If it is detected that the initial position to be measured of the target turnout beam 1 is deviated to the right, the locking member 2 can be moved to the left (below in the direction of the paper) by taking out a plurality of backing plates 4 (the number of the backing plates 4 should correspond to the above-mentioned position deviation amount) on the left side (above in the direction of the paper) of the locking member 2 and putting the backing plates into the right side (below in the direction of the paper) of the locking member 2, for example, as shown in fig. 7. Similarly, if it is detected that the initial position to be measured of the target turnout beam 1 is deviated to the left, the locking member 2 may be moved to the right (above in the direction of the paper surface) by taking out a plurality of backing plates 4 (the number of the backing plates 4 should correspond to the above-mentioned position offset) on the right side of the locking member 2 and putting the backing plates into the left side of the locking member 2 (above in the direction of the paper surface), for example, as shown in fig. 8.
That is, in a possible manner, the preset correspondence relationship may include a distance that the target switch beam 1 is deviated to the left or right, and the number of tie plates 4 that are increased or decreased on the left and right sides of the target switch beam 1 corresponding to the distance. It should be understood that the increased or decreased number of tie plates 4 may be based on multiple tests, which are not limited by the disclosed embodiments.
When the line type detection of one of the two switch beams, for example, the former, is completed, if the front end of the latter switch beam and the rear end of the former switch beam are on a common trolley during the line type detection of the other of the two switch beams, for example, the latter, the line type detection can be performed by using only the mark point of the rear end of the latter switch beam during the line type detection of the latter switch beam.
The articulated switch line type detection method of the present disclosure is explained below by another exemplary embodiment. Wherein the articulated turnout comprises a plurality of sequentially articulated turnout beams, the articulated turnout is a multi-opening turnout, one end of the articulated turnout is used for butting against a first turnout beam, the other end of the articulated turnout is used for selectively butting against one of a plurality of second turnout beams, and one of the second turnout beams is collinear with the first turnout beam so as to define a linear rail. And, there is a lock groove 3 on the foundation plate G, the lock groove 3 has basic width, the target turnout beam 1 is carried by the trolley, the trolley is provided with a locking piece 2, the locking piece 2 can stretch and retract to insert into the lock groove 3 or withdraw from the lock groove 3, both sides of the locking piece 2 are provided with backing plates 4 in the width direction of the lock groove 3 to position the locking piece 2 in the lock groove 3 when the locking piece 2 is inserted into the lock groove 3, the width direction is parallel to the adjustment direction, the backing plates 4 have basic thickness.
Referring to fig. 9, the articulated turnout line type detection method may include the steps of:
step S901, selecting one of the multiple turnout beams as a target turnout beam 1, and determining a mark point on the target turnout beam 1.
And step S902, moving the target turnout beam 1 to be butted with a second turnout beam which is collinear with the first turnout beam.
Step S903, projecting the mark point onto the surface of the ground substrate G at a preset angle, and determining the obtained projection point as a reference point.
And step S904, connecting a mass pendant at the mark point, wherein a laser source is arranged in the mass pendant, the mass pendant is provided with a hanging point for connecting to the mark point through a flexible rope, and laser emitted by the laser source is collinear with the hanging point.
And step S905, putting down the mass plummet.
And step S906, after the mass plummet is stopped, starting the laser source, and determining the point on the surface irradiated by the light beam emitted by the laser source as a projection point.
In step S907, the actual distance between the projected point and the reference point is measured, and the process proceeds to step S908 or step S909.
Step S908, if the distance difference between the actual distance and the theoretical distance is within the preset difference range, determining that the current line type of the target turnout beam 1 is the preset line type, and determining that the position to be detected is the required position.
In step S909, if the distance difference between the actual distance and the theoretical distance is not within the preset difference range, it is determined that the current line type of the target turnout beam 1 is not the preset line type, and it is determined that the position to be measured is not the required position.
Step S910, determining a position offset of the target switch beam 1 in the current line type relative to the target switch beam 1 in the preset line type according to a distance difference between the actual distance and the theoretical distance.
And step S911, determining the adjusting direction and the adjusting displacement of the target turnout beam 1 according to the position offset, and determining the number of backing plates 4 required by one side of the locking piece 2 according to the adjusting direction and the adjusting displacement.
Step S912, adjusting the number of the backing plates 4 on the two sides of the locking member 2 according to the number of the required backing plates 4, so as to adjust the position of the locking member 2 in the locking groove 3, and further adjust the position of the trolley and the target turnout beam 1 loaded thereon.
And step S913, performing line type detection on the target turnout beam 1 after the position is adjusted.
In this way, after the switch installation is accomplished, can project the current line type of switch roof beam on the coplanar (being the surface of foundation slab G) with the form of point, then carry out distance calculation on this plane, detect with realizing the switch line type, not only implement easily, but also can ensure measuring degree of accuracy, overcome in the correlation technique because the unable problem that can't carry out the switch line type detection that leads to of the relevant distance value of direct measurement, can improve the detection efficiency of switch line type, the accuracy of switch roof beam and switch roof beam butt joint when having improved the switch change in the use, be of value to the ride comfort when improving the train and passing through the switch.
The detailed description of the above steps is given above for illustrative purposes, and will not be repeated here. It will also be appreciated that for simplicity of explanation, the above-described method embodiments are all presented as a series of acts or combination of acts, but those skilled in the art will recognize that the present disclosure is not limited by the order of acts or combination of acts described above. Further, those skilled in the art will also appreciate that the embodiments described above are preferred embodiments and that the steps involved are not necessarily required for the present disclosure.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (7)
1. A method of detecting the alignment of an articulated switch comprising a plurality of switch beams that are sequentially articulated one behind the other, wherein the articulated switch is a multiple switch having one end for abutting a first switch beam and another end for selectively abutting one of a plurality of second switch beams, one of the second switch beams being co-linear with the first switch beam to define a linear rail, the method comprising:
selecting one of the turnout beams as a target turnout beam (1), and determining a marking point on the target turnout beam (1);
when the target turnout beam (1) is butted with a second turnout beam which is collinear with the first turnout beam, projecting the mark point onto the surface of a ground substrate (G) at a preset angle to obtain a first projection point which is used as a reference point, wherein a lock groove (3) is arranged on the ground substrate (G), the lock groove (3) has a basic width, the target turnout beam (1) is borne by a trolley, the trolley is provided with a locking piece (2), the locking piece (2) can stretch and retract to be inserted into the lock groove (3) or withdrawn from the lock groove (3), backing plates (4) are arranged on two sides of the locking piece (2) in the width direction of the lock groove (3) so as to position the locking piece (2) in the lock groove (3) when the locking piece (2) is inserted into the lock groove (3), the width direction is parallel to the adjustment direction, and the backing plate (4) has a basic thickness;
moving the target turnout beam (1) to a position to be measured, and projecting the mark point onto the surface of the ground substrate (G) at the preset angle to obtain a second projection point;
measuring an actual distance between the second projection point and the reference point;
determining whether the current linear type of the target turnout beam (1) is a preset linear type according to the comparison result of the actual distance and the theoretical distance, wherein the determining step comprises the following steps:
determining the position offset of the target turnout beam (1) in the current line type relative to the target turnout beam (1) in the preset line type according to the distance difference between the actual distance and the theoretical distance;
determining the adjustment direction and the adjustment displacement of the target turnout beam (1) according to the position offset; and the number of the first and second electrodes,
determining the number of backing plates (4) required by one side of the locking piece (2) according to the adjusting direction and the adjusting displacement;
adjusting the number of the base plates (4) on two sides of the locking piece (2) according to the number of the required base plates (4) so as to adjust the position of the locking piece (2) in the locking groove (3), and further adjust the position of the trolley and the target turnout beam (1) borne by the trolley;
and performing linear detection on the target turnout beam (1) after the position is adjusted.
2. The method according to claim 1, wherein the determining whether the current line type of the target turnout beam (1) is a preset line type according to the comparison result of the actual distance and the theoretical distance comprises:
and if the distance difference between the actual distance and the theoretical distance is within a preset difference range, determining that the current line type of the target turnout beam (1) is the preset line type, and judging that the position to be detected is the required position.
3. The method according to claim 1, wherein the determining whether the current line type of the target turnout beam (1) is a preset line type according to the comparison result of the actual distance and the theoretical distance comprises:
and if the distance difference between the actual distance and the theoretical distance is not within the preset difference range, determining that the current line type of the target turnout beam (1) is not the preset line type, and judging that the position to be measured is not the required position.
4. The method according to claim 1, wherein the projecting the marking point onto the surface of the ground substrate (G) at a preset angle to obtain a first projected point comprises:
connecting a mass pendant at the mark point, wherein a laser source is arranged in the mass pendant, the mass pendant is provided with a hanging point for connecting to the mark point through a flexible rope, and laser emitted by the laser source is collinear with the hanging point;
putting down the mass plummet;
and starting a laser source after the mass plummet is static, wherein the point on the surface, which is irradiated by the light beam emitted by the laser source, is the first projection point.
5. The method according to claim 1, characterized in that the number of the marking points is at least two, the marking points are selected at two ends of the extension direction of the target turnout beam (1), and the reference points are in one-to-one correspondence with the marking points.
6. The method according to claim 5, wherein the target turnout beam (1) has a plurality of sides perpendicular to the surface of the ground base plate (G), two adjacent sides intersecting to form a vertical edge, the marking point being located on the vertical edge.
7. The method of claim 6, wherein the marker points are located on vertical edges of the same side.
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| CH534257A (en) * | 1971-08-09 | 1973-02-28 | Matisa Materiel Ind Sa | Method for measuring and rectifying the position of a railway track by means of a beam of coherent light rays, and device for implementing the method |
| CN104452490B (en) * | 2014-10-16 | 2016-08-24 | 山东钢铁股份有限公司 | A kind of railway switch offset of lead curve backing plate |
| CN207391958U (en) * | 2017-10-31 | 2018-05-22 | 中铁第四勘察设计院集团有限公司 | A kind of single track joint turnout connected using returning face plate |
| CN108149535B (en) * | 2017-11-30 | 2019-08-20 | 中铁四局集团第五工程有限公司 | Method for detecting paving precision of track slab of CRTSIII slab ballastless track |
| CN108457143B (en) * | 2018-03-27 | 2020-03-24 | 株洲时代电子技术有限公司 | Track line coordinate measuring system |
| CN110020490B (en) * | 2019-04-16 | 2022-12-16 | 北京磁浮交通发展有限公司 | Track panel drawing method and device |
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