CN214583062U - Contact wire detection device - Google Patents
Contact wire detection device Download PDFInfo
- Publication number
- CN214583062U CN214583062U CN202120914185.2U CN202120914185U CN214583062U CN 214583062 U CN214583062 U CN 214583062U CN 202120914185 U CN202120914185 U CN 202120914185U CN 214583062 U CN214583062 U CN 214583062U
- Authority
- CN
- China
- Prior art keywords
- contact line
- laser
- point
- point laser
- hole
- 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.)
- Active
Links
Images
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a contact line detection device, which comprises a plurality of point laser sensors, wherein laser emitted by the plurality of point laser sensors forms a plurality of laser points on a horizontal plane where a contact line is located, the distance between two adjacent projection points of the plurality of laser points on a projection plane is smaller than the diameter of the contact line, and the projection plane is a plane where the cross section of the contact line is located; during detection, at least one beam of laser emitted by the point laser sensor in the opening state is irradiated on the contact line to be detected. The scheme can solve the problem that the detection accuracy and precision are low in the existing contact line detection mode.
Description
Technical Field
The invention relates to the technical field of contact line detection, in particular to a contact line detection device.
Background
In the actual running process of the trains of the national railways and the urban rail transit, the pantograph above the trains keeps long-term contact with the contact line of the contact network, so that the trains can always obtain power from the contact line to ensure the normal running of the trains. The contact line is in contact with the pantograph of the running train for a long time, so that the contact line is worn constantly, and unreliable factors are caused for power supply of the train, so that the state of the contact line needs to be detected in real time to ensure the safety and stability of the train in the running process.
The detection modes in the prior art are mainly two; the first method comprises the following steps: the contact line is detected through the laser radar (namely, a laser transmitter is used for detection), and the specific process is as follows: fixing a point laser sensor at one position, and scanning the contact line point by point in an intermittent rotation mode, wherein the scanning can be performed once every 5 degrees for example; however, this has the following problems: 1. the accuracy is low: when the point laser sensor rotates at a fixed angle for scanning, the moving distance of a scanning point on a horizontal plane where a contact line is actually irradiated by laser depends on the actual rotating angle of the point laser sensor, the actual rotating angle of the point laser sensor inevitably has control deviation, and the control deviation is obviously amplified along with the increase of the detection distance, so that the problem that the contact line cannot be detected due to the fact that the distance between two scanning points is too wide is caused, and the accuracy of the detection of the contact line is seriously influenced; 2. the precision is low: since the laser radar needs to rotate and swing during the detection process, the detection accuracy of the laser radar itself is reduced, and even if the contact line is detected, the detection accuracy is not high.
And the second method comprises the following steps: the method comprises the following steps of detecting a contact line through a line laser sensor and a camera, and specifically comprises the following steps: the line laser sensor and the camera are fixed at a specific position, the line laser sensor emits line laser to the contact line, the camera photographs a laser point emitted by the line laser sensor to the contact line, and the height of the laser point on the contact line in the photograph is calculated according to the size of the laser point on the contact line.
Disclosure of Invention
The invention discloses a contact line detection device, which aims to solve the problem of low detection accuracy and precision in the current contact line detection mode.
In order to solve the problems, the invention adopts the following technical scheme:
the invention provides a contact line detection device, which comprises a plurality of point laser sensors, wherein laser emitted by the plurality of point laser sensors forms a plurality of laser points on a horizontal plane where a contact line is located, the distance between two adjacent projection points of the plurality of laser points on a projection plane is smaller than the diameter of the contact line, and the projection plane is a plane where the cross section of the contact line is located.
Optionally, the contact line detecting device further comprises a reflecting element; the reflecting element is arranged facing the point laser sensor and used for reflecting laser emitted by the point laser sensor to the horizontal plane where the contact line is located.
Optionally, the number of the reflective elements is equal to the number of the point laser sensors, and one point laser sensor corresponds to one reflective element.
Optionally, the point laser sensor is disposed facing a horizontal plane where the contact line is located, and laser emitted by the point laser sensor directly irradiates the horizontal plane where the contact line is located.
Optionally, the contact line detecting device further comprises a fixing seat; the fixed seat is provided with a plurality of adjusting mechanisms, one point laser sensor is arranged on the corresponding one adjusting mechanism, and the angle of the point laser sensor on the fixed seat can be adjusted through the adjusting mechanism.
Optionally, the adjusting mechanism comprises an adjusting seat and a locking bolt; the adjusting seat is connected with the fixing seat in a rotating mode, the fixing seat is provided with an arc-shaped guide hole, and the screw rod end of the locking bolt penetrates through the arc-shaped guide hole and is matched with the threaded hole of the adjusting seat.
Optionally, the fixing seat is provided with a through hole; the adjusting seat is provided with a convex part which is in running fit with the through hole, and the convex part penetrates through the through hole and is connected with a detachable limiting part; the limiting part is used for being in limiting fit with one side end face, deviating from the adjusting seat, of the through hole.
The technical scheme adopted by the invention can achieve the following beneficial effects:
the contact line detection device disclosed by the invention has the advantages that the plurality of point laser sensors are arranged to emit laser, so that the laser emitted by the plurality of point laser sensors forms a plurality of laser points on the horizontal plane where the contact line is located, the distance between two adjacent projection points of the plurality of laser points on the projection plane is smaller than the diameter of the contact line, and the projection plane is the plane where the cross section of the contact line is located, so that at least one laser beam emitted by the plurality of point laser sensors can be irradiated on the contact line to be detected, the continuous rotating and swinging scanning of the point laser sensors is avoided, and the detection device can accurately detect the contact line; therefore, compared with the laser radar rotation scanning mode in the prior art, the contact line detection device disclosed by the invention can improve the accuracy and precision of contact line detection.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a contact line detecting apparatus disclosed in an embodiment of the present invention;
FIG. 2 is a schematic view of the distribution of laser beams emitted from the contact line detecting apparatus shown in FIG. 1 at a horizontal plane of the contact line;
FIG. 3 is a schematic diagram illustrating the distribution of laser beams emitted from a plurality of point laser sensors in an arc-shaped arrangement on a horizontal plane where contact lines are located according to an embodiment of the present invention;
fig. 4 is a schematic distribution diagram of laser beams emitted from a plurality of point laser sensors in a double-row arrangement on a horizontal plane where contact lines are located according to an embodiment of the present invention;
FIG. 5 is a schematic sectional view of an assembly of an adjusting seat and a fixing seat disclosed in the embodiment of the present invention;
description of reference numerals:
100-point laser sensor, 101-laser emitting end, 102-laser receiving end, 110-laser point,
200-a reflective element,
300-fixed seat, 301-arc guide hole, 302-locking bolt, 310-adjusting seat, 311-convex part,
312-an adjusting groove, 320-a limiting piece,
The 400-contact line and the 401-contact line are in the plane of the cross section.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 4, an embodiment of the invention discloses a contact line detecting apparatus, which includes a plurality of point laser sensors 100, wherein a plurality of laser spots 110 are formed on a horizontal plane where a contact line 400 is located by laser emitted from the plurality of point laser sensors 100, a distance between two adjacent projected points of the plurality of laser spots 110 on a projection plane 401 is smaller than a diameter of the contact line 400, and the projection plane 401 is a plane where a cross section of the contact line 400 is located.
The laser sensors 100 are arranged, so that the laser emitted by the laser sensors 100 forms a plurality of laser spots 110 on a horizontal plane where the contact line 400 is located, the distance between two adjacent projection points of the laser spots 110 on the projection plane 401 is smaller than the diameter of the contact line 400, and the projection plane 401 is a plane where the cross section of the contact line 400 is located, so that when the contact line detection device moves to the erection position of the contact line 400 for detection, at least one laser beam of the laser emitted by the laser sensors 100 can be irradiated onto the contact line 400 to be detected, and the detection device can accurately detect the contact line 400; therefore, compared with the detection mode of laser radar rotation scanning in the prior art, the contact line detection device disclosed by the invention can improve the detection accuracy and precision of the contact line 400.
Specifically, as shown in fig. 1, the plurality of spot laser sensors 100 may be arranged in a row, so that as shown in fig. 2, a plurality of laser spots 110 formed on a horizontal plane where the contact line 400 is located by the laser light emitted from the plurality of spot laser sensors 100 may be distributed on the same straight line; alternatively, the plurality of dot laser sensors 100 may be arranged in a double-row arrangement, so that as shown in fig. 4, a plurality of laser spots 110 formed on a horizontal plane where the contact line 400 is located by the laser emitted by the plurality of dot laser sensors 100 are distributed on two straight lines; still alternatively, the plurality of spot laser sensors 100 may be arranged in an arc-shaped arrangement, so that, as shown in fig. 3, a plurality of laser spots 110 formed on a horizontal plane where the contact line 400 is located by the laser emitted from the plurality of spot laser sensors 100 are distributed on an arc-shaped curve.
However, it should be noted that no matter what arrangement of the plurality of point laser sensors 100 is, the laser beams emitted from the plurality of point laser sensors 100 need to form a plurality of laser spots 110 on the contact surface, and the distance between two adjacent projection points of the plurality of laser spots 110 on the projection surface 401 is smaller than the diameter of the contact line 400, and the projection surface 401 is a plane where the cross section of the contact line 400 is located, so as to ensure that at least one laser beam of a plurality of laser beams emitted from the plurality of point laser sensors 100 always irradiates the contact line 400.
Preferably, the distance between two adjacent projected points of the plurality of laser spots 110 on the projection surface 401 is smaller than the radius of the contact line 400, and the projection surface 401 is a plane where the cross section of the contact line 400 is located, so as to ensure that the area of the laser spot 110 irradiated on the contact line 400 can reach more than 50% of the area of the laser spot 110, and better ensure the detection accuracy and precision of the contact line detection apparatus in the embodiment.
In the contact line detecting apparatus disclosed in this embodiment, as an arrangement manner in which the point laser sensor 100 emits laser light to the horizontal plane in which the contact line 400 is located, the laser light emitted by the point laser sensor 100 may be irradiated to the horizontal plane in which the contact line 400 is located in an indirect manner; specifically, as shown in fig. 1, the contact line detecting device may further include a reflective element 200, the reflective element 200 is disposed facing the point laser sensor 100, so that the point laser sensor 100 may adopt a flat arrangement mode through the reflective element 200, thereby reducing the center of gravity and facilitating the stable movement of the contact line detecting device, and the reflective element may also shield natural light, thereby avoiding the interference of the outdoor natural light on the laser receiving end 102 of the point laser sensor 100, and further better ensuring the detection accuracy and precision of the contact line detecting device.
When the contact line 400 is detected, laser emitted by the laser emitting end 101 of each point laser sensor 100 in the contact line detection device can irradiate on the reflecting element 200, and the laser is reflected to the horizontal plane of the contact line 400 under the reflection action of the reflecting element 200, so that the laser can irradiate on the contact line 400; then, the contact line 400 reflects the laser light irradiated thereon to the reflective element 200 again, and reflects the reflected laser light to the laser receiving end 102 of the laser sensor 100 at the corresponding point through the reflective element 200; meanwhile, after the laser receiving end 102 receives the laser reflected back by the reflecting element 200, a processor (not shown in the figure) connected to the laser emitting end 101 and the laser receiving end 102 calculates the distance S from the contact line 400 to the contact line detecting device according to the time T from the laser emitting end 101 to the laser receiving end 102 receiving the laser and the propagation velocity V (fixed value) of the laser in the air, and further calculates the height L of the contact line according to the height of the contact line detecting device.
In particular, the reflective element 200 may be a right-angle prism or a plane mirror; the number of the reflective elements 200 may be equal to the number of the point laser sensors 100, and one point laser sensor 100 corresponds to one reflective element 200, so that when the angle of each point laser sensor 100 is adjusted, each reflective element 200 may be adaptively adjusted.
Of course, the number of reflective elements 200 may be different from the number of spot laser sensors 100; for example, the plurality of point laser sensors 100 may share one reflecting element 200, and the present embodiment does not set any limit to the type and number of the reflecting elements 200.
As another arrangement of the point laser sensors 100, the plurality of point laser sensors 100 may also be arranged facing the horizontal plane where the contact line 400 is located, so that the laser emitting end 101 of each point laser sensor 100 can directly emit laser to the horizontal plane where the contact line 400 is located and irradiate on the contact line 400; then, the contact line 400 reflects the laser irradiated thereon back to the laser receiving end 102 of the laser sensor 100 at the corresponding point; alternatively, the plurality of spot laser sensors 100 may be arranged in such a manner that a part of the spot laser sensors 100 directly emit laser light to the horizontal plane of the contact line 400, and a part of the spot laser sensors 100 indirectly emit laser light to the horizontal plane of the contact line 400 via the reflection element 200.
In order to facilitate the arrangement of the plurality of point laser sensors 100, the contact line detecting apparatus disclosed in this embodiment may further include a fixing base 300, so that the fixing base 300 may provide a mounting bearing basis for the arrangement of each point laser sensor 100, so that the point laser sensor 100 may be arranged on the fixing base 300; simultaneously, can also conveniently install this contact wire detection device on non-contact measuring device through fixing base 300, non-contact measuring device can be non-contact fixed point measuring device or non-contact continuous measuring device, and further non-contact measuring device can be hand propelled inspection device or automatic inspection device, and this application does not carry out any restriction to contact net detection device's setting carrier.
Preferably, a plurality of adjusting mechanisms are arranged on the fixed seat 300, and one point laser sensor 100 is arranged on a corresponding adjusting mechanism, and the angle of the point laser sensor 100 on the fixed seat 300 can be adjusted through the adjusting mechanism; therefore, under different working conditions, the angles of the point laser sensors 100 can be adaptively adjusted or corrected, so that the laser emitted by the point laser sensors 100 forms a plurality of laser spots 110 on the horizontal plane where the contact line 400 is located, and the distance between two adjacent projection points of the plurality of laser spots 110 on the plane 401 where the cross section of the contact line 400 is located is smaller than the diameter of the contact line 400 to be detected, thereby better ensuring the detection effect and the adaptability of the contact line detection device.
Specifically, the adjustment mechanism may include an adjustment seat 310 and a locking bolt 302; adjust seat 310 and fixing base 300 and rotate and be connected, fixing base 300 is provided with arc guiding hole 301, and the screw rod end of locking bolt 302 passes arc guiding hole 301 to with the screw hole cooperation of adjusting seat 310.
When the angle of the point laser sensor 100 needs to be adjusted or corrected, the locking bolt 302 is loosened, so that the screw of the locking bolt 302 can slide along the guide of the arc-shaped guide hole 301, the adjusting seat 310 is rotated to drive the point laser sensor 100 to rotate together, the angle adjustment or correction of the point laser sensor 100 is further realized, the locking bolt 302 is screwed after the adjusting seat 310 rotates to a required angle, the fixing of the adjustment angle or the correction angle of the point laser sensor 100 is realized, and the reliability of the working of the contact line detection device is prevented from being influenced by the rotation of the point laser sensor 100.
As a specific way of rotationally connecting the adjusting seat 310 and the fixing seat 300, the fixing seat 300 may be provided with a through hole, the adjusting seat 310 may be provided with a convex portion 311 rotationally matched with the through hole, and the convex portion 311 passes through the through hole and is connected with a detachable limiting member 320; as shown in fig. 5, the limiting member 320 is used for limiting and matching with an end surface of the through hole facing away from the adjusting base 310.
The convex part 311 not only can realize the rotating fit between the adjusting seat 310 and the fixed seat 300, but also the convex part 311 can bear the weight of the adjusting seat 310 and the point laser sensor 100 arranged on the adjusting seat 310; moreover, the protrusion 311 is detachably connected to the limiting element 320, and the protrusion 311 is assembled and fixed to the fixing base 300 by limiting the limiting element 320 and the through hole to be away from the end surface of one side of the adjusting base 310. It will be readily appreciated that the cross-sectional shape of the boss 311 and the through-hole should be circular in order to allow the boss 311 to be rotatably engaged with the through-hole.
Meanwhile, the limiting member 320 may be a ring-shaped member, the inner diameter of the ring-shaped member is smaller than the diameter of the protrusion 311, and the outer diameter of the ring-shaped member is larger than the diameter of the protrusion 311; so that at least two mounting holes can be formed in the overlapped part of the ring-shaped member and the end face of the convex part 311, and then fasteners such as screws or bolts are inserted into the corresponding mounting holes, thereby realizing the detachable connection of the convex part 311 and the limiting part 320; the part of the annular part extending out of the end surface of the convex part 311 can abut against the end surface of one side of the through hole departing from the adjusting seat 310 to form a limit matching structure.
In order to make the annular member can imbed in fixing base 300 to guarantee the level and smooth of fixing base 300 surface, the through-hole can set up to the shoulder hole, and the part that the annular member extends the convex part 311 terminal surface is taken and is limited fixedly on the step face of shoulder hole, and makes during the annular member imbeds the shoulder hole, avoids the annular member because of protrusion in fixing base 300 surface and leads to fixing base 300 and the counterbalance problem when setting up installation such as carrier, reaches the mesh of stepping down.
Preferably, the end surface position of the convex part 311 corresponding to the inner hole of the ring-shaped member is provided with an adjusting groove 312; during adjustment, an adjusting tool can be inserted into the adjusting groove 312 of the convex part 311 through the inner hole of the ring-shaped member, so that the convex part 311 is driven to rotate by rotating the adjusting tool, and further, the angle of the adjusting seat 310 can be accurately adjusted; the adjustment groove 312 may be designed to have various shapes such as an inner triangle or an inner hexagon, the shape of the adjustment groove 312 is not limited in this embodiment, and accordingly, the head of the adjustment tool is adapted to the shape of the adjustment groove 312, so that the head of the adjustment tool can be snapped into the adjustment groove 312 to drive the protrusion 311 to rotate together.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (7)
1. The contact line detection device is characterized by comprising a plurality of point laser sensors, wherein laser emitted by the plurality of point laser sensors forms a plurality of laser points on a horizontal plane where a contact line is located, the distance between two adjacent projection points of the plurality of laser points on a projection plane is smaller than the diameter of the contact line, and the projection plane is a plane where the cross section of the contact line is located.
2. The contact line inspection apparatus of claim 1, further comprising a reflective element; the reflecting element is arranged facing the point laser sensor and used for reflecting laser emitted by the point laser sensor to the horizontal plane where the contact line is located.
3. The contact line detecting device as claimed in claim 2, wherein the number of the reflecting elements is equal to the number of the point laser sensors, and one point laser sensor corresponds to one reflecting element.
4. The contact line detecting device according to claim 1, wherein the point laser sensor is disposed facing a horizontal plane on which the contact line is located, and the laser emitted from the point laser sensor is directly irradiated to the horizontal plane on which the contact line is located.
5. The contact line detecting device according to any one of claims 1 to 4, further comprising a holder; the fixed seat is provided with a plurality of adjusting mechanisms, one point laser sensor is arranged on the corresponding one adjusting mechanism, and the angle of the point laser sensor on the fixed seat can be adjusted through the adjusting mechanism.
6. The contact line detecting device according to claim 5, wherein the adjusting mechanism comprises an adjusting seat and a locking bolt; the adjusting seat is connected with the fixing seat in a rotating mode, the fixing seat is provided with an arc-shaped guide hole, and the screw rod end of the locking bolt penetrates through the arc-shaped guide hole and is matched with the threaded hole of the adjusting seat.
7. The contact line detecting device according to claim 6, wherein the holder is provided with a through hole; the adjusting seat is provided with a convex part which is in running fit with the through hole, and the convex part penetrates through the through hole and is connected with a detachable limiting part; the limiting part is used for being in limiting fit with one side end face, deviating from the adjusting seat, of the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120914185.2U CN214583062U (en) | 2021-04-29 | 2021-04-29 | Contact wire detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120914185.2U CN214583062U (en) | 2021-04-29 | 2021-04-29 | Contact wire detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214583062U true CN214583062U (en) | 2021-11-02 |
Family
ID=78328552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120914185.2U Active CN214583062U (en) | 2021-04-29 | 2021-04-29 | Contact wire detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214583062U (en) |
-
2021
- 2021-04-29 CN CN202120914185.2U patent/CN214583062U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3992844B2 (en) | Laser projector power and transmission system | |
| CN103547886B (en) | For the grade mechanism of tiltable laser optical system | |
| CN214583062U (en) | Contact wire detection device | |
| CN111482696B (en) | Welding seam tracking and height measuring system of friction stir welding robot | |
| CN108195568B (en) | Centering self-checking and calibrating method for headlamp illuminance detection device | |
| CN111981978B (en) | Auxiliary target set for large-span bridge space linear three-dimensional laser scanning | |
| CN113155037A (en) | Contact line detection device and contact line detection method | |
| CN113137344A (en) | Wind generating set clearance measuring device and method and wind generating set | |
| US8149129B2 (en) | Signal alignment monitoring system and method of assembling the same | |
| CN214744441U (en) | Adjusting mechanism for contact wire detection device | |
| CN102878986A (en) | Method and apparatus for aligning and leveling server rack rail | |
| CN105675269A (en) | Vehicle head light tester and quick positioning method capable of automatically identifying route | |
| CN110812712B (en) | Two-plane corner precision adjustment and calibration device | |
| CN212459307U (en) | Laser emitting angle adjusting device | |
| JPH11166832A (en) | Laser surveying system | |
| CN113093152B (en) | Laser detector for panoramic view | |
| KR200332833Y1 (en) | A level maintenance device of distance measuring instrument which moves on the rail | |
| JP3971005B2 (en) | Wind power generator and aviation obstruction light device used therefor | |
| CN220432090U (en) | Auxiliary deviation correcting device of gantry crane | |
| CN220419567U (en) | Laser navigation positioning reflecting device | |
| CN210981187U (en) | Detector for detecting flatness of elevator guide rail during elevator installation | |
| JP2018141784A (en) | Steel plate shape measurement device and steel plate shape straightening device | |
| CN221098181U (en) | Photoelectric switch debugging rotating bracket | |
| CN221037323U (en) | Perpendicularity measuring instrument for traffic mapping | |
| CN219590512U (en) | Measuring device using laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230822 Address after: No. 303, Floor 3, Building 1, No. 937, Wenjin Road, Wuhou District, Chengdu, Sichuan 610041 Patentee after: Chengdu Huacong Zhishi Technology Co.,Ltd. Address before: No.172 Shunsheng Road, Zhengxing street, Tianfu New District, Chengdu, Sichuan 610213 Patentee before: Chengdu Juju Zhichuang Technology Co.,Ltd. |