CN2217214Y - Device for measuring the drawing out value with difference calculating for connection net of electric railway - Google Patents
Device for measuring the drawing out value with difference calculating for connection net of electric railway Download PDFInfo
- Publication number
- CN2217214Y CN2217214Y CN 94210417 CN94210417U CN2217214Y CN 2217214 Y CN2217214 Y CN 2217214Y CN 94210417 CN94210417 CN 94210417 CN 94210417 U CN94210417 U CN 94210417U CN 2217214 Y CN2217214 Y CN 2217214Y
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- CN
- China
- Prior art keywords
- stagger
- chi
- anchor point
- drawing out
- out value
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a power frequency single-phase alternating current contacting net in electric railway in China. The utility model provides a new measuring device which can directly obtain the actual drawing out value of a contact line without the influence of the situation of a line. The utility model is characterized in that the bottom of a common measuring bar is additionally provided with a positioning point rail distance measuring ruler which can slide in an insulator along the central line of the measuring device; the inner part of the positioning point rail distance measuring ruler is provided with a drawing out value measuring ruler which is capable of sliding along the central line of the drawing out value measuring ruler and is provided with the graduation of the drawing out value; the drawing out value measuring ruler is provided with a positioning stopping nail which is capable of being rotated downward at any time to decide the relative position of the drawing out value measuring ruler and the positioning point rail distance measuring ruler. The utility model is suitable for measuring the actual drawing out value of the contact line.
Description
The utility model relates to the power frequency single-phase AC electric railway contact net of China.Be applicable to the measurement of osculatory stagger.
Osculatory must be located by technical requirement.There is certain distance at anchor point and pantograph pan of locomotive center, this distance in linear section " it " word value; At curve section stagger.General general designation stagger is represented with a.According to the Ministry of Railways make No. 1 the issue " regulations of railway technical operation) regulation: linear section, wire center overlaps with the motorcycle pantograph center, stagger road along the line center arrangement, standard is ± 300mm; Curve section stagger standard sees Table one.
Table one
| Sweep R (m) | 300—1200 | 1201—1799 | ＞1800 |
| Stagger a (mm) | 400 | 250 | 150 |
c＝h·H÷l
a＝m＋c
The height of h-osculatory
H-superelevation of outer rail value
L-rail rail square
M-osculatory is to the distance of wire center
The offset distance of c-central lines of track and pantograph center line must be measured the stagger of osculatory, to be adjusted to the technical standard state for guaranteeing normal safe driving regularly.On-the-spot in operation, the main survey method of stagger is that method is surveyed in projection, weighs down with the insulating bar ledger line, makes anchor point to the circuit projection, determines the position of anchor point to pantograph indirectly by projected position; Concrete grammar is: line is weighed down fastens on the little hook that thin nylon wire hangs over the insulating bar top, then insulating bar is hung on anchor point, treat line weigh down stable after, slotted line weighs down the distance of top and wire center, at this moment, if in linear section, this distance is actual bit and goes out value; If at curve section, this distance is the m value shown in Fig. 1, calculates actual stagger by formula a=m+c.Because curve section need just can obtain actual stagger by calculating, and causes measuring speed slow so projection survey method is influenced by line conditions and self survey method, especially be unsuitable for from density driving section; Be subjected to wind effect because line weighs down simultaneously, the measured value error is bigger.The another kind survey method of stagger is to utilize insulating bar to measure the distance of anchor point to the two rails rail level, substitution a=(AB
2-AC
2) ÷ 2CB (with reference to the geometric analysis of Fig. 2: figure one), calculate actual stagger with counter.But this survey method still need be calculated the step of actual stagger, and it is slower to test the speed, and used supporting measuring tool cost cost is big, is difficult to be suitable for.
The purpose of this utility model provides a kind of improved stagger measuring tool, and it is not influenced by line conditions and measurement environment, does not need to calculate, and can obtain the actual stagger that accuracy meets the demands from measuring tool quickly and easily.
The utility model is achieved in that with reference to Fig. 2 formula:
A=(AB
2-AC
2) ÷ 2CB (linear section is as the same)
A-anchor point
B-interior rail rail level
C-outer rail rail level
CB-rail square (getting 1440mm) is according to a=(AB
2-AC
2) ÷ 2CB, by changing the height and the stagger of osculatory, draw the actual value of AB, AC respectively, and observation difference (AB-AC), big variation does not take place because of the height change of osculatory and superelevation of outer rail different in the relation of finding stagger a and (AB-AC), in view of the above and consider that the accuracy of measured value obtains: the altitude range that is applicable to osculatory has a=4.4436 (AB-AC), relative error I＜2.7% during for 6.2m-6.5m; The altitude range of osculatory has a=4.2498 (AB-AC), relative error T＜6.7% during for 5.7m-6.2m.Linked up with by the top, the common measuring staff bottom that the cylinder insulator is formed is set up the fixed point rail spacing that can slide along its center line and is surveyed chi in insulating bar, leave the existing Cha Kou of a reading on the anchor point rail spacing survey chi.Link up with to anchor point rail spacing survey chi bottom surface from the top, the active length of measuring tool can be measured the ultimate range of anchor point to two rails rail level spacing; Measuring tool is hung on anchor point, when anchor point rail spacing is surveyed chi and is placed the two rails rail level respectively, this survey chi can reflect anchor point between the two rails rail level apart from difference.In anchor point rail spacing is surveyed chi, be provided with one and can survey chi along the stagger that its center line slides with stagger scale; That is: when the altitude range of osculatory is 6.2m-6.5m, to be anchor point see Table two apart from 4.4436 times of difference to the two rails rail level to stagger; When the altitude range of osculatory was 5.7m-6.2m, to be anchor point to two rail rail level saw Table three apart from 4.2498 times of difference to stagger.
Table two
| 35 | 46 | 68 | 90 | 101 |
| 150 | 200 | 300 | 400 | 450 |
Table three
| 35 | 47 | 71 | 95 | 107 |
| 150 | 200 | 300 | 400 | 450 |
Stagger is surveyed and is established a location non-magnetic shim that can screw off at any time with decision stagger survey chi and anchor point rail spacing survey chi relative position on the chi, when anchor point being reflected to stagger apart from difference and surveying on the chi between the two rails rail level, just can read the stagger reading of a correspondence easily, thereby obtain the actual stagger of osculatory.
An anchor point rail spacing is surveyed chi to the utility model and a stagger is surveyed chi because only need to set up on former measuring tool, so structure is simple especially; Simultaneously, do not need other instrument to cooperate because its measuring method depends on stagger and the proportionate relationship of anchor point to two rails rail level spacing difference, and the measurement approach is direct, easy to use, and not influenced by line conditions and measurement environment, measurement is quick and precisely.
Below in conjunction with accompanying drawing the utility model is described in detail
(the measuring tool each several part long measure that marks among the figure is m).
Fig. 3 is applicable to structural drawing of the present utility model when height of contact wire is 5.7m-6.2m.
Fig. 4 is that anchor point rail spacing is surveyed the chi structural drawing in Fig. 3 measuring tool.
Fig. 5 is that Fig. 4 surveys the cut-open view of chi along the A-A line.
Fig. 6 is the scale synoptic diagram that stagger is surveyed chi in Fig. 3 measuring tool.
Fig. 7 is the sectional view that Fig. 6 surveys chi.
Fig. 8 is applicable to structural drawing of the present utility model when height of contact wire is 6.2m-6.5m.
With reference to Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, this measuring tool comprises a measuring staff top hook [1], cylinder insulator [2] [3] [4] [5], and anchor point rail spacing is surveyed chi [6], and stagger is surveyed chi [7] and location non-magnetic shim [8].Anchor point rail spacing is surveyed on the chi [6] and is left the reading observation panel.Stagger is surveyed and is established a location non-magnetic shim [8] on the chi [7], and stagger survey chi [7] is gone up the reading of stagger and pressed table three scale.For easy to carry, cylinder insulator [2] section can bounce back in [3] section successively, and [3] section can shrink in [4] section, and [4] section can shrink in [5] section, after each section relative fixed, satisfies length shown in Figure 3 when measuring tool draws back work.Anchor point rail spacing is surveyed chi [6] and also can be bounced back in cylinder insulator [5], and stagger is surveyed chi [7] and can be free to slide in anchor point rail spacing is surveyed chi [6] along the measuring tool center line.The location non-magnetic shim [8] that stagger is surveyed on the chi [7] can screw off the relative position of surveying chi [7] and anchor point rail spacing survey chi [6] with the decision stagger at any time, location non-magnetic shim [8] makes stagger survey chi [7] can not do lateral rotation with respect to anchor point rail spacing survey chi [6], in case the scale that stagger is surveyed on the chi [7] departs from observation panel.When measuring stagger, the cylinder insulator is drawn back relative fixed successively from [2] section, then measuring tool is hung on anchor point, in plane perpendicular to surface level, anchor point rail spacing is surveyed chi [6] extracts out in insulator [5], its bottom places the rail rail level of osculatory pull-out direction earlier, promote location non-magnetic shim [8], the stagger that moves up is surveyed chi [7], when the zero graduation on the stagger survey chi [7] is concordant with insulator [5] section bottom surface, screw off location non-magnetic shim [8], survey fixedly stagger survey chi [7] of chi [6] with respect to anchor point rail spacing.At this moment, less anchor point to rail rail level spacing is surveyed the zero-bit that chi [7] is gone up the stagger scale corresponding to stagger.Then anchor point rail intermittent gauging chi [6] bottom is placed another rail rail level, obtain a bigger anchor point to rail rail level spacing.At this moment and since anchor point rail spacing survey chi [6] continue move down, stagger is surveyed chi [7] and is moved down synchronously with it, with respect to insulator [5] section bottom surface, anchor point between the two rails rail level apart from the difference Lock-in and simultaneously the value of being drawn out survey chi [7] measurement.The stagger of observing cylinder insulator [5] section bottom surface correspondence is surveyed the reading of chi [7], is the actual stagger of osculatory.
With reference to Fig. 8, this measuring tool and measuring tool shown in Figure 3 have only insulator length, and anchor point rail spacing is surveyed chi length, and stagger is surveyed the difference of chi scale ratio.Matching relationship between its structure and each several part and using method and measuring tool shown in Figure 3 are identical.
Claims (3)
1. one by top hook [1], the electric railway osculatory stagger measuring tool that circle simple insulator [2] [3] [4] [5] is formed, it is characterized in that the measuring tool bottom also has an anchor point rail spacing to survey chi [6], this survey chi can slide in insulator along the measuring tool center line, have one can survey chi [7] along the stagger with stagger scale that its center line slides in anchor point rail spacing is surveyed chi [6], stagger survey chi [7] is provided with one can screw off the location non-magnetic shim [8] of surveying carpenters square [6] relative position between chi [7] and anchor point rail with the decision stagger at any time.
2. by the osculatory stagger measuring tool of claim 1 regulation, it is characterized in that leaving a reading observation panel on the anchor point rail spacing survey chi [6].
3. press the osculatory stagger measuring tool of claim 1 regulation, it is characterized in that the scale that stagger is surveyed on the chi [7] is determined by following relation, when the altitude range of osculatory is 6.2m-6.5m, stagger is an anchor point to two rails rail level 4.4436 times apart from difference, when the altitude range of osculatory is 5.7m-6.2m, stagger is an anchor point to two rails rail level 4.2498 times apart from difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94210417 CN2217214Y (en) | 1994-05-03 | 1994-05-03 | Device for measuring the drawing out value with difference calculating for connection net of electric railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94210417 CN2217214Y (en) | 1994-05-03 | 1994-05-03 | Device for measuring the drawing out value with difference calculating for connection net of electric railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2217214Y true CN2217214Y (en) | 1996-01-10 |
Family
ID=33827838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94210417 Expired - Fee Related CN2217214Y (en) | 1994-05-03 | 1994-05-03 | Device for measuring the drawing out value with difference calculating for connection net of electric railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2217214Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589826A (en) * | 2012-03-08 | 2012-07-18 | 南京铁道职业技术学院 | Elasticity measuring device for contact net |
| CN110470194A (en) * | 2019-08-30 | 2019-11-19 | 中国铁建电气化局集团第五工程有限公司 | A kind of lever contact net leads the measuring device of height and stagger |
-
1994
- 1994-05-03 CN CN 94210417 patent/CN2217214Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589826A (en) * | 2012-03-08 | 2012-07-18 | 南京铁道职业技术学院 | Elasticity measuring device for contact net |
| CN102589826B (en) * | 2012-03-08 | 2016-01-27 | 南京铁道职业技术学院 | A kind of elasticity measuring device for contact net |
| CN110470194A (en) * | 2019-08-30 | 2019-11-19 | 中国铁建电气化局集团第五工程有限公司 | A kind of lever contact net leads the measuring device of height and stagger |
| CN110470194B (en) * | 2019-08-30 | 2024-02-13 | 中国铁建电气化局集团第五工程有限公司 | Lever type contact net height guiding and pulling-out value measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |