CN111595431A - Whole dropper vibration register for easy reference collection device of high-speed railway contact net - Google Patents
Whole dropper vibration register for easy reference collection device of high-speed railway contact net Download PDFInfo
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- CN111595431A CN111595431A CN202010204806.8A CN202010204806A CN111595431A CN 111595431 A CN111595431 A CN 111595431A CN 202010204806 A CN202010204806 A CN 202010204806A CN 111595431 A CN111595431 A CN 111595431A
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- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
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Abstract
The utility model provides a whole dropper vibration register for easy way contact net collection system, belongs to the track traffic field, is a non-contact measuring device for gathering whole dropper vibration register for easy way, mainly comprises collection system, control system, and collection system includes high-speed camera module (1), telephoto lens (2), A-frame (3), and control system comprises PLC the control unit (4), industrial computer (5), data transmission line (6) and data display (7). The acquisition device simultaneously measures vibration images of contact lines (9) and carrier cables (10) at positions corresponding to 6 integral dropper (8) in one span when a train passes by near a railway through the high-speed camera module (1), and achieves the purpose of measuring vibration spectrums of the integral dropper (8) in real time.
Description
Technical Field
The invention belongs to the field of rail transit, and is suitable for measuring the vibration spectrum of the integral dropper of a high-speed railway contact network.
Background
The integral dropper is an important component of a high-speed railway contact net, one end of the integral dropper is connected with a contact net carrier cable, and the other end of the integral dropper is connected with a contact line, so that the contact suspension point of the contact line is increased, the sag and the elastic uniformity of the contact net are improved, the structural height of the contact suspension is adjusted, and a certain bearing and current-carrying effect is achieved.
When a high-speed train passes by, the pantograph slide plate at the top of the train and the contact line carry out current-carrying friction operation and get electricity from the contact line, so that the purpose of supplying power to the train is achieved. However, when the pantograph slide plate is in dynamic contact friction with the contact line, the pantograph slide plate is used as an elastic system and can lift the contact line under the action of dynamic elastic force and contact force, so that the integral dropper at the contact point is driven to lift upwards; when the pantograph slide plate passes through, the contact line and the integral dropper at the position suddenly drop due to the action of gravity, and then continuously vibrate up and down and are gradually attenuated under the action of a flexible system.
In the actual service process, when no train passes through, the integral dropper is in a static state under the action of the flexible elastic system and the self gravity; when a train passes through, due to the lifting of the pantograph and the damping effect of the flexible system, the whole dropper can vibrate up and down when the train passes through and after the train passes through, and the current-carrying friction motion of the subsequent second pantograph or the next train pantograph is influenced. In addition, the up-and-down vibration of the integral dropper can cause the integral dropper to bear dynamic force and repeatedly bend, so that the integral dropper fails in fatigue. Therefore, the vibration process and the vibration spectrum of the whole dropper need to be measured, and the influence of the vibration process and the vibration spectrum on the service life of the whole dropper and the current-carrying friction motion of the pantograph and the contact net needs to be analyzed.
Because the integral dropper is arranged right above the high-speed railway line, the vibration of the dropper is only generated when the train passes by and in a short time after the train passes by, the vibration process and the vibration spectrum measurement are not easy to realize, and the normal operation of the train cannot be influenced in the measurement process.
To the measurement problem of whole dropper vibration spectrum, this patent has designed a whole dropper vibration spectrum collection system of high-speed railway contact net, can be near the vibration spectrum of the real-time measurement whole dropper of non-contact near high-speed railway line.
Disclosure of Invention
The invention aims to solve the technical problem of vibration spectrum measurement of an integral dropper of a rail transit overhead contact system, and designs a vibration spectrum acquisition device of the integral dropper of the high-speed railway overhead contact system.
The technical scheme adopted by the invention is as follows: the utility model provides a whole dropper vibration spectrum collection system of high-speed railway contact net, mainly comprises collection system, control system, and collection system includes high-speed camera module (1), telephoto lens (2), A-frame (3), and control system comprises PLC the control unit (4), industrial computer (5), data transmission line (6) and data display (7).
The collecting device collects vibration images of the integral dropper (8) when a train passes by near a high-speed railway line through the high-speed camera module (1) and the telephoto lens (2), and converts the vibration images into digital information through the industrial personal computer (5), so that a vibration spectrum of the integral dropper (8) is obtained.
The vibration spectrum acquisition process of the integral dropper (8) is realized by an acquisition system comprising 6 groups of high-speed camera modules (1), a telephoto lens (2) and a triangular support (3) which are arranged near a line, the test distance can be controlled by adjusting the telephoto lens (2), and the test angle can be realized by adjusting the angle of the triangular support (3).
The acquisition system is controlled by a control system consisting of a PLC control unit (4) and an industrial personal computer (5), so that vibration images of 6 integral suspension strings (8) in a span of a high-speed railway contact network can be synchronously acquired at the same time.
The vibration image acquisition of the integral dropper (8) is to acquire images of a contact line (9) and a carrier cable (10) at the upper end and the lower end of the integral dropper (8) through an acquisition system, convert the images into digital information through an industrial personal computer (5) by using an image processing method, and obtain vibration spectrum data of the integral dropper (8) by comparing the digital information of the contact line (9) and the carrier cable (10).
The invention has the following characteristics:
the utility model provides a whole dropper vibration spectrum collection system of high-speed railway contact net, the major component includes collection system, control system, and wherein collection system comprises high-speed camera module (1), telephoto lens (2), A-frame (3), and control system includes that PLC control unit (4), industrial computer (5), data transmission line (6) and data display (7) realize data transmission and show the function in real time.
The acquisition system of the acquisition device realizes non-contact measurement of a vibration image of the whole dropper (8) near a high-speed railway line through the high-speed camera module (1), the telephoto lens (2) and the triangular bracket (3), the measurement distance (100 meters to 200 meters) and the measurement angle (0 degree to 90 degrees) of the acquisition system can be realized by adjusting the telephoto lens (2) and the triangular bracket (3), and the acquisition system is used for 6 sets of simultaneous acquisition.
The acquisition system of the acquisition device is controlled in real time through the control system, the control system controls the acquisition process of 6 integral suspension strings (8) in a span of a high-speed railway contact network in real time through the PLC control unit (4), and the acquisition process of the 6 integral suspension strings (8) is ensured to be synchronous at the same time; the acquired image data of the integral dropper (8) is synchronously stored on the industrial personal computer (5) in real time.
The collecting process of the integral dropper (8) of the collecting system is that images of contact lines (9) and carrier cables (10) at the upper end and the lower end of the integral dropper (8) are collected and identified through a high-speed camera module (1), the images are converted into digital information through an industrial personal computer (5), and then the digital information of the contact lines (9) and the carrier cables (10) is compared in real time, so that vibration spectrum data of the integral dropper (8) are obtained.
The acquisition device is connected with all 6 sets of acquisition systems through a data transmission line (6), transmits the information of the acquisition systems to a control system, and then displays the acquired image of the integral dropper (8) and the vibration spectrum of the integral dropper (8) converted by the industrial personal computer (5) on a data display (7) in real time.
The acquisition device is a non-contact measurement system, realizes the acquisition of images in the range of 100-200 meters on a railway, and can display the images of the whole hanger (8) and the processed vibration spectrum data in real time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only one embodiment of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is an overall schematic view of an overall dropper vibration spectrum acquisition device for a high-speed railway contact network according to an embodiment of the present invention, in which a high-speed camera module 1, a telephoto lens 2, a tripod 3, a PLC control unit 4, an industrial personal computer 5, a data transmission line 6, a data display 7, an overall dropper 8, a contact line 9, and a catenary 10 are shown.
Fig. 2 is a method for image acquisition and data conversion of the integral dropper vibration spectrum acquisition device according to the embodiment of the present invention.
Detailed Description
A structural schematic diagram of a high-speed railway contact net integral dropper vibration spectrum acquisition device is shown in figure 1, and a schematic diagram of an image acquisition and data conversion method is shown in figure 2, and the device comprises a high-speed camera module (1), a telephoto lens (2), a triangular support (3), a PLC control unit (4), an industrial personal computer (5), a data transmission line (6), a data display (7), an integral dropper (8), a contact line (9) and a catenary (10).
The utility model provides a whole dropper vibration spectrum collection system of high-speed railway contact net, mainly comprises collection system, control system, and wherein collection system passes through high-speed camera module (1), telephoto lens (2), A-frame (3) collection image, and control system passes through PLC control unit (4), industrial computer (5), data transmission line (6) and data display (8) and realizes the control and the image conversion function of collection process, as shown in figure 1.
The high-speed camera module (1) collects a dropper vibration image when a high-speed train passes at the highest speed of 160-380 km/h; 1000-.
In the field acquisition process of a high-speed railway line, a triangular support (3) is fixed within a range of 100-200 meters away from the high-speed railway line, then a telephoto lens (2) and a high-speed camera module (1) are respectively installed on the triangular support (3) in sequence, the telephoto lens (2) and the high-speed camera module (1) are sequentially connected with a PLC control unit (4), an industrial personal computer (5) and a data display (7) through a data transmission line (6), the data display (7) is opened and field debugging equipment is debugged, images of a train passing through a front integral hanger (8), a contact line (9) and a carrier cable (10) are acquired, and the images are converted into digital information through the industrial personal computer (5).
In the debugging process, the integral dropper (8), the contact line (9) and the carrier cable (10) which need to be collected are positioned by adjusting the focal length of the telephoto lens (2), the position of the triangular support (3) and the angle. The PLC control unit (4) is used for controlling 6 acquisition systems to simultaneously acquire images of the contact line, 6 cross-inside and integral dropper (8) of the contact line and the contact line (9) and the catenary (10) at corresponding positions, and the 6 groups of data are synchronized by debugging.
When a high-speed train passes by, the PLC control unit (4) controls to rapidly collect images of the contact line, 6-span internal contact lines, the integrated dropper (8) and the contact lines (9) and the catenary cables (10) at corresponding positions, stores related images to the industrial personal computer (5) in real time, converts image data of the integrated dropper (8), the contact lines (9) and the catenary cables (10) into digital information through the industrial personal computer (5), obtains displacement information of the contact lines (9) and the catenary cables (10) at the upper end and the lower end of the integrated dropper (8) at the corresponding positions, and obtains a vibration spectrum of the integrated dropper (8) at the corresponding positions by comparing the displacement information of the contact lines (9) and the catenary cables (10), as shown in figure 2, and the aim of collecting the vibration spectrum of the high-speed railway contact line integrated dropper (8) is achieved.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (2)
1. The device for acquiring the integral dropper vibration spectrum of the high-speed railway contact network is characterized by comprising an acquisition system and a control system, wherein the acquisition system comprises a high-speed camera module (1), a telephoto lens (2) and a triangular bracket (3), and the control system consists of a PLC (programmable logic controller) control unit (4) and an industrial personal computer (5), and further comprises a data transmission line (6) and a data display (7);
the acquisition device acquires vibration spectrums of 6 integral suspension strings in a span of a contact network when a high-speed train passes by the high-speed railway line in real time through an acquisition system; the acquisition device consists of 6 sets of acquisition systems, each set of acquisition system is erected within a range of 100-500 meters away from the high-speed railway through a high-speed camera module (1), a telephoto lens (2) and a triangular support (3), and the vibration process of the 6 integral dropper is acquired remotely in a non-contact manner in real time;
the high-speed camera module (1) collects a dropper vibration image when a high-speed train passes at the highest speed of 160-380 km/h;
each set of acquisition system controls the measurement distance of the acquisition system within the range of 100 meters to 500 meters by adjusting the focal length of the telephoto lens (2); the measurement angle of the acquisition system can be adjusted within the range of 0-90 degrees through the triangular support (3);
the control system of the acquisition device controls 6 sets of acquisition systems through the PLC control unit (4), stores 6 groups of images of the 6 sets of acquisition systems on the industrial personal computer (5) in real time, and ensures that the 6 groups of acquired images are synchronous in time.
2. The device for acquiring the vibration spectrum of the integral dropper of the high-speed railway contact network according to claim 1, wherein the vibration spectrum of the integral dropper is obtained by comparing the displacement of the acquired images of the contact line (9) and the catenary cable (10) through an industrial personal computer (5);
each set of acquisition system tracks images of a contact line (9) and a carrier cable (10) at the upper end and the lower end of the integral dropper (8) when a train passes through in real time through a high-speed camera module (1), records image data of the contact line (9) and the carrier cable (10) when the train passes through, converts image information of the contact line (9) and the carrier cable (10) into displacement digital information through an industrial personal computer (5), and then compares displacement information of the contact line (9) and the carrier cable (10) to obtain vibration digital information of the integral dropper (8) and obtain a vibration spectrum of the integral dropper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010204806.8A CN111595431A (en) | 2020-03-22 | 2020-03-22 | Whole dropper vibration register for easy reference collection device of high-speed railway contact net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010204806.8A CN111595431A (en) | 2020-03-22 | 2020-03-22 | Whole dropper vibration register for easy reference collection device of high-speed railway contact net |
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| CN111595431A true CN111595431A (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010204806.8A Pending CN111595431A (en) | 2020-03-22 | 2020-03-22 | Whole dropper vibration register for easy reference collection device of high-speed railway contact net |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114049559A (en) * | 2021-11-17 | 2022-02-15 | 西南交通大学 | Non-contact measurement method and device for overall dropper load of railway contact network |
| NL2030934A (en) * | 2022-02-14 | 2022-07-06 | Univ Southwest Jiaotong | Non-contact measurement device for load of integrated sling of railway catenary |
-
2020
- 2020-03-22 CN CN202010204806.8A patent/CN111595431A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114049559A (en) * | 2021-11-17 | 2022-02-15 | 西南交通大学 | Non-contact measurement method and device for overall dropper load of railway contact network |
| NL2030934A (en) * | 2022-02-14 | 2022-07-06 | Univ Southwest Jiaotong | Non-contact measurement device for load of integrated sling of railway catenary |
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Effective date of registration: 20211201 Address after: 100081 Beijing city Haidian District Daliushu Road No. 2 Applicant after: STANDARD MEASUREMENT INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCE Corp.,Ltd. Applicant after: CHINA RAILWAY TEST & CERTIFICATION CENTER Co.,Ltd. Applicant after: SOUTHWEST JIAOTONG University Applicant after: CHINA ACADEMY OF RAILWAY SCIENCES Corp.,Ltd. Address before: 100081 Beijing city Haidian District Daliushu Road No. 2 Applicant before: STANDARD MEASUREMENT INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCE Corp.,Ltd. Applicant before: CHINA RAILWAY TEST & CERTIFICATION CENTER Co.,Ltd. Applicant before: SOUTHWEST JIAOTONG University |