CN102353348B - Detection and automatic straightening method of electrified railway construction contact line hard spot - Google Patents
Detection and automatic straightening method of electrified railway construction contact line hard spot Download PDFInfo
- Publication number
- CN102353348B CN102353348B CN 201110177034 CN201110177034A CN102353348B CN 102353348 B CN102353348 B CN 102353348B CN 201110177034 CN201110177034 CN 201110177034 CN 201110177034 A CN201110177034 A CN 201110177034A CN 102353348 B CN102353348 B CN 102353348B
- Authority
- CN
- China
- Prior art keywords
- contact line
- hard spot
- straightener
- osculatory
- plc
- 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 With Unspecified Measuring Means (AREA)
Abstract
The invention relates to a detection and automatic straightening method of an electrified railway construction contact line hard spot, which belongs to the technical field of power supply wires. The method comprises the following technical processes that: a contact line adopts a continuous constant tension decoiling mode to pass a straightener with a servo motor; a flatness measuring instrument detects the hard spot on the contact line before the contact line enters the straightener, and transfers the corresponding signal and straightening quantity to a programmable logic controller (PLC); meanwhile, the PLC transfers the signal to a tachometer, the tachometer detects the instantaneous speed of the moving contact line, and the PLC calculates the working time point of the straightener through the instantaneous speed detected by the tachometer; and the PLC calculates the movement turns of a screw of the straightener through the required straightening quantity, and finally transfers the working time and the workload to the servo motor, the servo motor makes the straightener move up and down through the screw, so the automatic straightening of the hard spot of the contact line is realized. The detection and automatic straightening method of the electrified railway construction contact line hard spot can quickly, conveniently and accurately detect the hard spot condition of the contact line, and automatically and accurately straighten the hard spot.
Description
Technical field
The class lead technology field that the present invention relates to power relates in particular to a kind of electric railway osculatory hard spot and detects and the automatic aligning method.
Electric locomotive is in operation, and the variation of motorcycle pantograph and osculatory contact force is very complicated, and we have cited approvingly place that the contact force of motorcycle pantograph and osculatory changes suddenly for contacting hard spot usually, are referred to as hard spot.Because pantograph is soft contact with contacting of osculatory, the impact of any hard spot all will cause off-line, and electric arc is had and produced in the stage casing in one's care, the scaling loss osculatory, and in the serviceable life of shortening osculatory, the while can not be satisfied the needs that steadily continue to get stream of high speed pantograph.
The reason that hard spot produces is a lot, construction reason: contact wire is not adopted permanent tension stringing, is not formed hard spot according to the construction technology unwrapping wire in the unwrapping wire process; Personnel step on and step on contact wire in the contact net installation is adjusted, Operation Van's hoistable platform immediate roof is lifted contact wire and produced hard spot.The material reason: adopt alloy contact wire crystal grain inhomogeneous, there is stress in wire inside, and it is curved to form wave under the tension force effect, and contact wire forms hard spot making or twine in the dish process.
At present in high-speed railway is used because the raising of osculatory hardness, hard spot is easier generation then, in order to avoid producing the curved and hard spot of wave in the work progress as far as possible, affect current carrying quality, therefore on Setting-out Technique from the employing damping line-putting method of general speed, become the permanent tension stringing technology that adopts the advanced person, purpose is to guarantee that osculatory is discharged with reel tension value in the manufacture process, and guarantees to continue with smooth-going in the unwrapping wire process.It mainly is observation by naked eyes behind the unwrapping wire that the curved and hard spot of existing wave detects, and its efficient is low, poor accuracy; Carry out again comparatively difficulty of alignment after construction is finished simultaneously, and precision is not high.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, the hard spot situation that can detect quick, convenient, accurately osculatory is provided, and hard spot is carried out automatically the accurately method of the detection of the electrified railway construction contact line hard spot of alignment and automatic aligning.
The object of the present invention is achieved like this: the method for a kind of electrified railway construction contact line hard spot detection and automatic aligning, and described method comprises following technological process: osculatory adopts the mode of continuous permanent tension stringing by the straightener with servomotor; Detect the hard spot on the osculatory that enters before the straightener by flatness meassuring instrument, and provide corresponding signal and the aligning amount is transferred to PLC; PLC is transferred to knotmeter with this signal simultaneously, detects the instantaneous velocity that osculatory moves by knotmeter, because the distance of flatness meassuring instrument and straightener is fixed, then PLC can calculate by the instantaneous velocity that knotmeter detects the time point of straightener work; Because servomotor is made straightener by screw rod and moved up and down, PLC can calculate by needs aligning amount the number of turns of screw motion, and last PLC is transferred to servomotor with time and the workload of work, realizes the automatic aligning of osculatory hard spot.
Osculatory is in high-speed motion state during for construction, and traditional flatness detects contact methods such as need under static state adopting clearance gauge and detects, inefficiency, and the osculatory that is not suitable for high-speed motion state detects.Therefore the flatness meassuring instrument for wire rods such as osculatory should adopt contactless method to carry out, and as adopting the flatness meassuring instrument of laser technology, such as the laser flatness meassuring instrument, its ultimate principle is:
Be the laser directive measured target of c with the light velocity, measure the time that it returns, try to achieve thus between laser instrument and measured target apart from d.
That is: d=c t/2
t-laser sends and receives the time interval between the return signal in the formula.
By continual range observation, obtain the continuous distance Curve of wire rod, and then the amount that calculates the flatness of wire rod and need to align.
Work accurately for guaranteeing straightener, need knotmeter that the accurate working time is provided, existing knotmeter working method has contact and contactless, and contact such as dicycly (Fig. 3) and crawler type (Fig. 4) are utilizes friction force to drive wheel turns, thereby by the sensor finding speed.But osculatory is bare copper wire, because need of work requires smooth surface, not damaged, the surface may be stained with oil stain etc. simultaneously, and the contact knotmeter must cause skidding, and it is inaccurate to test the speed.Therefore should adopt contactless knotmeter such as laser velocimeter, radar meter etc. for speed measuring device.
The invention has the beneficial effects as follows:
The inventive method can detect the hard spot situation of osculatory quick, convenient, accurately, and hard spot is carried out automatically accurately alignment.Thereby guaranteed the degree of accuracy of straightener work, realized precision straightening.Can reach normal operating conditions with osculatory after guaranteeing construction.
Description of drawings
Fig. 1 is the FB(flow block) of the method for electrified railway construction contact line hard spot detection of the present invention and automatic aligning.
Fig. 2 is that the electrified railway construction contact line hard spot that adopts of the present invention detects and the apparatus structure synoptic diagram of automatic aligning.
Fig. 3 is the dicycly knotmeter structural representation that in the past adopts.
Fig. 4 is the crawler type knotmeter structural representation that in the past adopts.
Reference numeral among the figure:
Flatness meassuring instrument 1
PLC?3
Straightener 4, straightener upper movable structure 401, servomotor 402, screw rod 403, straightener substructure 404 with servomotor;
Osculatory 5
Two-wheel 6
Sensor 7
Crawler belt 8
Sensor 9.
Embodiment
Referring to Fig. 1 and Fig. 2, Fig. 1 is the FB(flow block) of the method for electrified railway construction contact line hard spot detection of the present invention and automatic aligning.Fig. 2 utilizes the structural representation of the device of the detection of invention electrified railway construction contact line hard spot and automatic aligning method for this.Can be found out by Fig. 1 and Fig. 2, the method of electrified railway construction contact line hard spot detection of the present invention and automatic aligning, the device that described method adopts forms by flatness meassuring instrument 1, knotmeter 2, PLC 3 with straightener 4 four parts of servomotor, for straightener can be aligned accurately, the amount and the aligning time point that need PLC to calculate and accurately determine to align.In order to cooperate two instruments of PLC need of work flatness meassuring instrument and knotmeter, the concrete working method of these two instruments is: osculatory 5 adopts the mode of continuous permanent tension stringing by the straightener with servomotor; Realize detecting quickly and accurately hard spot by flatness meassuring instrument, and provide corresponding signal and the aligning amount is transferred to PLC; PLC is transferred to knotmeter with this signal simultaneously, detects the instantaneous velocity that osculatory 5 moves by knotmeter, because the distance of flatness meassuring instrument and straightener is fixed, then PLC can calculate by the instantaneous velocity that detects the time point of straightener work.Because servomotor is made straightener by screw rod and moved up and down, PLC can calculate by needs aligning amount the number of turns of screw motion.Last PLC is transferred to servomotor with time and the workload of work, the work of driven by servomotor straightener, the automatic aligning of realization osculatory hard spot.
Concrete mounting means is: when needs carry out the detection of vertical direction hard spot and aligning, flatness meassuring instrument is placed the osculatory vertical direction, straightener also places the osculatory vertical direction to get final product, and the speedometer instrument places the osculatory side, and direction can be arranged arbitrarily; When needs carry out the detection of horizontal direction hard spot and aligning, flatness meassuring instrument is placed the osculatory horizontal direction, straightener also places the osculatory horizontal direction to get final product, and the speedometer instrument places the osculatory side, and direction can be arranged arbitrarily.
Claims (5)
1. an electrified railway construction contact line hard spot detects and the method for automatic aligning, and it is characterized in that: described method comprises following technological process: osculatory adopts the mode of continuous permanent tension stringing by the straightener with servomotor; Detect the hard spot on the osculatory that enters before the straightener by flatness meassuring instrument, and provide corresponding signal and the aligning amount is transferred to PLC; PLC is transferred to knotmeter with this signal simultaneously, detects the instantaneous velocity that osculatory moves by knotmeter, and the instantaneous velocity that PLC detects by knotmeter calculates the time point of straightener work; PLC calculates the number of turns of the screw motion of straightener by needs aligning amount, and last PLC is transferred to servomotor with time and the workload of work, and servomotor moves up and down straightener by screw rod, realizes the automatic aligning of osculatory hard spot.
2. a kind of electrified railway construction contact line hard spot according to claim 1 detects and the method for automatic aligning, and it is characterized in that: described flatness meassuring instrument adopts contactless flatness meassuring instrument, and knotmeter also adopts contactless knotmeter.
3. a kind of electrified railway construction contact line hard spot according to claim 2 detects and the method for automatic aligning, and it is characterized in that: described contactless flatness meassuring instrument is the laser flatness meassuring instrument; Contactless knotmeter is laser velocimeter or radar meter.
4. according to claim 1 and 2 or 3 described a kind of electrified railway construction contact line hard spots detect and the method for automatic aligning, it is characterized in that: when needs carry out the detection of vertical direction hard spot and aligning, flatness meassuring instrument is placed the osculatory vertical direction, straightener also places the osculatory vertical direction, and knotmeter places the osculatory side.
5. according to claim 1 and 2 or 3 described a kind of electrified railway construction contact line hard spots detect and the method for automatic aligning, it is characterized in that: when needs carry out the detection of horizontal direction hard spot and aligning, described flatness meassuring instrument is placed the osculatory horizontal direction, straightener also places the osculatory horizontal direction, and knotmeter places the osculatory side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110177034 CN102353348B (en) | 2011-06-28 | 2011-06-28 | Detection and automatic straightening method of electrified railway construction contact line hard spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110177034 CN102353348B (en) | 2011-06-28 | 2011-06-28 | Detection and automatic straightening method of electrified railway construction contact line hard spot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102353348A CN102353348A (en) | 2012-02-15 |
| CN102353348B true CN102353348B (en) | 2013-05-01 |
Family
ID=45576969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110177034 Active CN102353348B (en) | 2011-06-28 | 2011-06-28 | Detection and automatic straightening method of electrified railway construction contact line hard spot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102353348B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014613B (en) * | 2014-05-27 | 2016-08-17 | 中国重型机械研究院股份公司 | A kind of non-contact laser on-line checking bar linearity mechanism and detection method |
| JP6311757B2 (en) * | 2016-09-13 | 2018-04-18 | 株式会社明電舎 | Insulator detecting device and insulator detecting method |
| CN108088606A (en) * | 2017-06-05 | 2018-05-29 | 范长东 | A kind of contact line conducting wire parameter measurement instrument |
| CN109444613A (en) * | 2018-12-21 | 2019-03-08 | 北京史河科技有限公司 | Contact line detector |
| CN112387899A (en) * | 2020-11-17 | 2021-02-23 | 中铁十局集团电务工程有限公司 | Intelligent line straightening device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1001338B (en) * | 1992-01-21 | 1993-08-31 | Antonios Anagnostopoulos | Method for the alignment of a wire. |
| JP2850288B2 (en) * | 1995-03-31 | 1999-01-27 | 株式会社三葉製作所 | Wire straightening ruler cutting device |
| DE19828675C2 (en) * | 1998-06-26 | 2000-05-25 | Witels App Masch Albert Gmbh | Method and device for adjusting straightening rollers of a straightening apparatus for straightening wire which can be adjusted in translation by means of an adjusting mechanism |
| CN2838803Y (en) * | 2005-09-23 | 2006-11-22 | 中铁电气化局集团有限公司 | The contact wire swage |
-
2011
- 2011-06-28 CN CN 201110177034 patent/CN102353348B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102353348A (en) | 2012-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102353348B (en) | Detection and automatic straightening method of electrified railway construction contact line hard spot | |
| CN101537552B (en) | Online measurement and control method and device of filling ratio of flux-cored wire forming machine | |
| RU2010118060A (en) | MACHINE FOR CONTINUOUS FLEXIBILITY OF EXTENDED WORK WITH PRESET RADIUS | |
| CN104677300A (en) | Online measurement device and method for thickness of thin film | |
| CN105277129A (en) | Dynamic noncontact rail gauge measuring system and method thereof | |
| CN104457608A (en) | Cylinder size error detection system | |
| CN103344186A (en) | Loading machine unloading parameter testing device and method | |
| CN110207613A (en) | A kind of workpiece two-dimensional on-line measuring device and detection method | |
| CN102489547A (en) | Device for automatically measuring and inkjet-marking steel tube | |
| CN104864824A (en) | Plate waveform scanning device for plate heat exchanger | |
| CN202133382U (en) | Device for hard spot detection and automatic alignment for contact line in electrified railway construction | |
| CN204064252U (en) | Wheel hub measurement mechanism | |
| CN102910811A (en) | Scribing device and method for maintaining the pressing pressure of scribing device | |
| CN203337107U (en) | Loader unloading parameter testing device | |
| CN105277138A (en) | Maglev curve F-type rail curvature two-dimensional measuring device and detection method thereof | |
| CN105241420B (en) | A kind of movable road surface flatness on-line determination equipment and its method of work | |
| CN102809359A (en) | Claw pole boss height measuring device | |
| CN201952113U (en) | Braking gliding amount testing instrument for cranes | |
| CN205561773U (en) | Measuring device is warp to dam level based on grating chi | |
| CN202092622U (en) | Height measuring device of claw pole boss | |
| CN205192444U (en) | Measurement device for magnetism floats curve F type rail camber two dimension | |
| CN211926823U (en) | Online measuring system for straightness of bar | |
| CN103611906B (en) | Portable online strand length-measuring appliance and measuring method thereof | |
| CN204594430U (en) | Plate heat exchanger plate waveform scanister | |
| CN204461395U (en) | A kind of overhead contact built-in conduit gap measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |