CN102910089A - Plane arrangement optimize structure of rigid contact system - Google Patents
Plane arrangement optimize structure of rigid contact system Download PDFInfo
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- CN102910089A CN102910089A CN2012104544763A CN201210454476A CN102910089A CN 102910089 A CN102910089 A CN 102910089A CN 2012104544763 A CN2012104544763 A CN 2012104544763A CN 201210454476 A CN201210454476 A CN 201210454476A CN 102910089 A CN102910089 A CN 102910089A
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- abrasion
- carbon slide
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Abstract
The invention discloses a plane arrangement optimize structure of a rigid contact system. The abrasion among bow nets at the rigid suspension section is reduced, and the non-uniform degree of the abrasion is reduced, so that the uniform abrasion of a pantograph carbon contact strip is achieved finally, the service life of the pantograph carbon contact strip is prolonged, and the purpose of reducing the replace and maintenance operation of the pantograph carbon contact strip is achieved. The plane arrangement optimize structure comprises anchoring sections formed by straight busbars (11) and curved busbars (12); the stagger values of all suspension points of the anchoring sections are arranged according to 2 to 5 mm/m constant change rate along a line; each anchoring section is bent once; and the suspension point where the highest stagger value of each anchoring section is positioned is arranged as a center anchoring joint (13).
Description
Technical field
The present invention relates generally to urban track traffic, and particularly a kind of rigid contact net floor plan is optimized structure.
Background technology
All the time, pantograph contact line relation all is one of gordian technique of electrified railway.Pantograph-contact system is as the important equipment that electric energy is provided to train, and its good current carrying quality is the condition precedent of train safe, reliable, smooth operation, also affects service life and the operation cost of pantograph and contact system.
After No. two lines of Guangzhou Underground adopt overhead rigid suspension, have simple in structure, the outstanding advantages such as reliability is high, engineering construction is easy, the operation maintenance integrated cost is low, good economy performance in view of rigid suspended, thereby urban track traffic and main line electrified railway obtain using more and more widely at home.
But since No. two lines of Guangzhou Underground put into effect in 2002, bow net in actual operation process, occurs and wear away greatly and wear away the problems such as inhomogeneous, it is inhomogeneous to be mainly manifested in the pantograph carbon slide abrasion, the out-of-shape of the present pantograph carbon slide driving surface of master meter and uneven, the stagger maxim (± 200mm) locate the pantograph abrasion seriously, form darker groove.Irregular wear appears in vehicle pantograph carbon slide plate, and major cause is that the Layout Design of rigidity overhead contact line is unreasonable, causes distribution probability and the wearing time of contact wire on pantograph carbon slide inhomogeneous.
The rigid suspended floor plan of present domestic subway generally adopts sine wave shape arrangement (as shown in Figure 1), maximum stagger is no more than 200mm, maximum anchor segment length is no more than 250m, and uninsulated overlap place stagger is ± No. two lines in 100mm(Guangzhou) or ± other circuit of 75mm().
When adopting sinusoidal the layout, in each anchor section, the stagger rate of change is not more constant numerical value, but alter a great deal, namely at different track sections, contact wire on pantograph carbon slide to sweep frequency inconsistent, cause the friction probability of contact wire different parts on pantograph carbon slide different.Therefore, time of run one is long, the rough situation of unavoidable appearance on the pantograph carbon slide.
Especially at sinusoidal crest and trough, i.e. the maximum stagger in both sides place, the stagger rate of change is minimum, and the continuous span distance.Sinusoidal arrangement is described for this so that the probability of the maximum stagger in pantograph carbon slide both sides place's abrasion is larger, and the time that wears away continuously is the longest, directly causes pantograph carbon slide serious wear herein.
Summary of the invention
Technical matters to be solved by this invention provides a kind of rigid contact net floor plan and optimizes structure, to wear away between the bow net that reduces rigid suspended section, and the degree of irregularity of reduction abrasion, finally reach the pantograph carbon slide abrasion evenly, prolong its service life, reduce the purpose of pantograph carbon slide being changed maintenance workload.
The technical solution adopted for the present invention to solve the technical problems is as follows:
Rigid contact net floor plan of the present invention is optimized structure, comprise the anchor section that is consisted of by straight line bus duct and crooked bus duct, it is characterized in that: the stagger of described each hitch point of anchor section arranges in the constant variation rate of fair line road direction by 2～5mm/m, each anchor section bending once, the maximum stagger place hitch point of each anchor section is set to mid point anchor.
The invention has the beneficial effects as follows that the abrasion of train pantograph carbon slide have evenly avoided forming on the pantograph carbon slide surface hidden danger of groove even appearance card line or backguy, guarantee operation security.Simultaneously, keep the pantograph carbon slide surface smoothing also can effectively increase the area of contact of contact wire and pantograph carbon slide, thereby improve pantograph contact line relation, reduce the probability of arcing between bow net.Stagger adjustment in construction is more simple and easy to do, is more convenient for guaranteeing construction quality.
Description of drawings
This specification sheets comprises following three width of cloth accompanying drawings:
Fig. 1 is existing rigid contact net plane arrangement structure scheme drawing;
Fig. 2 is the rigid contact net floor plan of the present invention scheme drawing of optimizing structure;
Fig. 3 is the structural representation of the embodiment of the invention.
Indicate member, position and corresponding mark among the figure: straight line bus duct 11, crooked bus duct 12, mid point anchor 13.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
With reference to Fig. 1, the rigid suspended floor plan of present domestic subway generally adopts the sine wave shape arrangement, maximum stagger is no more than 200mm, and maximum anchor segment length is no more than 250m, and uninsulated overlap place stagger is ± No. two lines in 100mm(Guangzhou) or ± other circuit of 75mm().When adopting sinusoidal the layout, in each anchor section, the stagger rate of change is not more constant numerical value, but alter a great deal, namely at different track sections, contact wire on pantograph carbon slide to sweep frequency inconsistent, cause the friction probability of contact wire different parts on pantograph carbon slide different.Therefore, time of run one is long, the rough situation of unavoidable appearance on the pantograph carbon slide.Especially at sinusoidal crest and trough, i.e. the maximum stagger in both sides place, the stagger rate of change is minimum, and the continuous span distance.Sinusoidal arrangement is described for this so that the probability of the maximum stagger in pantograph carbon slide both sides place's abrasion is larger, and the time that wears away continuously is the longest, directly causes pantograph carbon slide serious wear herein.
With reference to Fig. 2, rigid contact net floor plan of the present invention is optimized structure, comprise the anchor section that is consisted of by straight line bus duct 11 and crooked bus duct 12, the stagger of described each hitch point of anchor section, no matter at straight line or curve section, arrange by the constant variation rate of 2～5mm/m in fair line road direction, make contact wire sweeping frequency and just can substantially keep constant on pantograph carbon slide.In addition, each anchor section bending once, the maximum stagger place hitch point of each anchor section is set to mid point anchor 13, makes the less section of bus duct bending spring be positioned at the place of close mid point anchor.
During pantograph carbon slide Effective width 800mm, described maximum stagger is all by being not more than 280mm, the stagger of the adjacent side-by-side mounting point of maximum stagger hitch point is generally got 250mm(but should be greater than 250mm), according to the concrete numerical value of definite maximum stagger hitch poinies such as these two hitch point staggers, route curve radius.The stagger of all the other hitch poinies beyond the inferior large stagger needs to determine its rate of change according to time large stagger, joint hitch point stagger and anchor segment length etc., and then determines according to the span between this rate of change, hitch point.
Except maximum stagger hitch point is the adjustable stagger, all the other hitch poinies are crucial hitch point.
The closed guard gate, anti-flood the special sectors such as door, switch area and can choose as the case may be stagger.
Reference is by the embodiment shown in Fig. 3, the mid point anchor of left side M1 anchor section and right side M3 anchor section is separately positioned on anchor section middle part hitch point M1-13, M3-13 place, the hitch point M1-12 of sides adjacent and M3-12 then are defined as time large stagger hitch point, its stagger absolute value is fixedly installed and is 250mm, and then the anchor section placement variation rate expression formula between M1-12 and M3-12 is:
K=（|a1|+|a2|+d）/（S1+S2-3）
In the formula: a1, a2 are respectively the stagger of M1-12, M3-12 hitch point;
D is that adjacent two anchor sections are in the spacing of joint;
S1, S2 are respectively two span sums between adjacent anchor section straight-though arrangement anchor paragraph header tail two hitch poinies;
" 3 " are that two anchor sections are 3 meters in the length of joint intersection.
According to this expression formula, if shown in the joint be uninsulated overlap, then can calculate the rate of change K=(250+250+200 of its linear portion anchor section)/(78+78-3)=4.58mm/m.According to this rate of change, can fast speed calculate the stagger of other hitch poinies between M1-12 ~ M3-12 hitch point.Take the M1-6 hitch point as example, its distance apart from the M1-12 hitch point=(8+8+......+8)=and 48m, the stagger a=250-48 * 4.58=30mm of M1-6 hitch point.
Each hitch point stagger computation chart of table 1-
Rigid contact net floor plan of the present invention is optimized structure and is made the abrasion of train pantograph carbon slide evenly, has avoided forming on the pantograph carbon slide surface hidden danger of groove even appearance card line or backguy, guarantees operation security.Simultaneously, keep the pantograph carbon slide surface smoothing also can effectively increase the area of contact of contact wire and pantograph carbon slide, thereby improve pantograph contact line relation, reduce the probability of arcing between bow net.This scheme also makes the stagger adjustment of overhead rigid suspension contact system in construction more simple and easy to do, is more convenient for guaranteeing construction quality.
Although the overhead rigid suspension contact system can not be arranged to the "the" shape of standard as the built on stilts flexible suspension contact system, strides in the scope in both sides, maximum stagger place two, can form broken line with the bending spring of trying one's best little that bus duct allows and arrange.Compare with the sinusoidal waveform arrangement, the present invention can effectively shorten the length of the halt of maximum stagger place's contact wire on pantograph carbon slide, avoids pantograph carbon slide to form groove in both sides.Therefore, this scheme also can be referred to as " splayed " arrangement visually.
Because time large stagger of this scheme and maximum stagger are slightly large when arranging than sinusoidal waveform, therefore, enlarged pantograph carbon slide and area of contact contact wire, improve the service life of pantograph carbon slide and reduced the replacing maintenance workload of carbon slide plate.
In addition, when arranging according to the constant-slope arrangement, the slope computing formula in according to the present invention, anchor section for different length, then the hitch point stagger at place, joint place is also different, and namely the stagger at joint is not definite value, but the length that is divided with the anchor section is relevant.It is that definite value is compared that this randomness is arranged in joint with traditional sinusoidal waveform, and the further even abrasion of contact wire on the carbon slide plate are unlikely to form groove near the both sides 100mm of pantograph carbon slide center.
The above some principle that rigid contact net floor plan of the present invention is optimized structure that just explained through diagrams, be not be the present invention to be confined to shown in and in described concrete structure and the Applicable scope, so every corresponding modify that might be utilized and equivalent all belong to the claim that the present invention applies for.
Claims (2)
1. the rigid contact net floor plan is optimized structure, comprise the anchor section that is consisted of by straight line bus duct (11) and crooked bus duct (12), it is characterized in that: the stagger of described each hitch point of anchor section arranges in the constant variation rate of fair line road direction by 2～5mm/m, each anchor section bending once, the maximum stagger place hitch point of each anchor section is set to mid point anchor (13).
2. rigid contact net floor plan as claimed in claim 1 is optimized structure, and it is characterized in that: described maximum stagger is not more than 280mm, and the stagger of the adjacent side-by-side mounting point of maximum stagger hitch point is not more than 250mm.
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| CN2012104544763A CN102910089A (en) | 2012-11-13 | 2012-11-13 | Plane arrangement optimize structure of rigid contact system |
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| CN2012104544763A CN102910089A (en) | 2012-11-13 | 2012-11-13 | Plane arrangement optimize structure of rigid contact system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175473A (en) * | 2013-03-26 | 2013-06-26 | 东莞市诺丽电子科技有限公司 | Online monorail car pantograph monitoring system |
| CN104156588A (en) * | 2014-08-05 | 2014-11-19 | 中铁电气化勘测设计研究院有限公司 | Method for calculating wear shape of slide plate corresponding to rigid catenary design model |
| CN105095598A (en) * | 2015-08-28 | 2015-11-25 | 中铁第一勘察设计院集团有限公司 | Construction method for graphic design drawing of overhead rigid catenary of metro |
| CN112078436A (en) * | 2020-08-20 | 2020-12-15 | 广州地铁设计研究院股份有限公司 | Rigid contact net anchor section joint structure |
| CN113415212A (en) * | 2021-08-11 | 2021-09-21 | 中铁二院工程集团有限责任公司 | Continuous seamless rigid contact suspension network system for rail transit and installation method thereof |
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| CN202986863U (en) * | 2012-11-13 | 2013-06-12 | 中铁二院工程集团有限责任公司 | Rigid contact system plane arrangement optimized structure |
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| CN202986863U (en) * | 2012-11-13 | 2013-06-12 | 中铁二院工程集团有限责任公司 | Rigid contact system plane arrangement optimized structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175473A (en) * | 2013-03-26 | 2013-06-26 | 东莞市诺丽电子科技有限公司 | Online monorail car pantograph monitoring system |
| CN103175473B (en) * | 2013-03-26 | 2016-01-20 | 东莞市诺丽电子科技有限公司 | Online pantograph of monorail vehicle monitoring system |
| CN104156588A (en) * | 2014-08-05 | 2014-11-19 | 中铁电气化勘测设计研究院有限公司 | Method for calculating wear shape of slide plate corresponding to rigid catenary design model |
| CN105095598A (en) * | 2015-08-28 | 2015-11-25 | 中铁第一勘察设计院集团有限公司 | Construction method for graphic design drawing of overhead rigid catenary of metro |
| CN105095598B (en) * | 2015-08-28 | 2018-03-16 | 中铁第一勘察设计院集团有限公司 | The construction method of subway overheat rigid contact network plane design drawing |
| CN112078436A (en) * | 2020-08-20 | 2020-12-15 | 广州地铁设计研究院股份有限公司 | Rigid contact net anchor section joint structure |
| CN113415212A (en) * | 2021-08-11 | 2021-09-21 | 中铁二院工程集团有限责任公司 | Continuous seamless rigid contact suspension network system for rail transit and installation method thereof |
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Application publication date: 20130206 |