CN102529750B - Construction technology of insulation structure of ground power supply sliding contact wire of electric flat car - Google Patents
Construction technology of insulation structure of ground power supply sliding contact wire of electric flat car Download PDFInfo
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- CN102529750B CN102529750B CN201210024310.8A CN201210024310A CN102529750B CN 102529750 B CN102529750 B CN 102529750B CN 201210024310 A CN201210024310 A CN 201210024310A CN 102529750 B CN102529750 B CN 102529750B
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Abstract
The invention discloses a construction technology of an insulation structure of a ground power supply sliding contact wire of an electric flat car. Firstly, a layer of electro-insulating rubber of 2-5mm is additionally arranged at a contact port part of a pressing plate and a track; secondly, an insulation tube is sleeved on a foundation bolt, a phenolic aldehyde insulation plate is arranged between a steel washer of the foundation bolt and an insulation pressing plate; meanwhile, an elastic rubber base plate which is arranged below the track in the original design is reserved, and layers of insulation are formed between the insulation pressing plate and the track, between the insulation pressing plate and the bolt as well as between the track and a foundation; and finally, the design requirement of the insulation resistance of the track to the ground is also ensured. According to the insulation structure, a process of pouring the sulphur-bonded motar insulation foundation bolt is omitted, so the construction difficulty is greatly reduced; the construction quality and the progress are improved, and the construction technology is the insulation technology of a flat car track, which is more convenient, environmental-friendly, safer and more economic.
Description
Technical field
The present invention relates to low voltage electric flat carriage surface power supply trolley insulation technology, specifically, relate to insulation system and the construction technology thereof of ground trolley bolt and track.
Background technology
KPDS type three-phase and KPD type individual event low voltage electric flat carriage adopt ground trolley, and it bears must be greater than >=0.5M of the flatcar track ground insulation resistance Ω of load-bearing and trolley task, and this is the key that determines that whether flatcar normally moves.In existing design, holding-down bolt adopts sulphur-bonded mortar to be poured in basic preformed hole, is used for guaranteeing every holding-down bolt ground insulation; Under track and pressing plate, be equipped with elastic insulated backing plate, with this, guarantee be greater than >=0.5M of track ground insulation resistance Ω.
But in construction, complex process is carried out in the preparation of sulphur-bonded mortar and perfusion at high temperature (approximately 130 ℃～170 ℃) at the scene; Very easily contact with reserved hole wall during embedding anchor bolts in addition, insulation resistance value is difficult to guarantee; And boil on-the-spot meeting and produce a large amount of CO
2, SO
2deng toxic and harmful, affect the healthy of workman, the while is contaminated environment also, and construction naked light has increased again on-the-spot dangerous matter sources.
Summary of the invention
What the present invention will solve is that holding-down bolt insulation resistance value is difficult to the technical matters guaranteeing, the electric flat carriage surface power supply trolley insulation system insulating layer by layer between a kind of track and pressing plate, pressing plate and bolt is provided, has guaranteed that the insulation resistance value of flatcar power supply rail has met designing requirement.
The present invention has also solved the technical matters of existing ground trolley insulation complicated construction technique simultaneously, a kind of construction technology of electric flat carriage surface power supply trolley insulation system is provided, omit the operation of pouring into sulphur-bonded mortar insulation holding-down bolt in former technique, greatly reduce difficulty of construction, improve construction quality and progress.
In order to solve first technical matters, the present invention is achieved by following technical scheme:
A kind of electric flat carriage surface power supply trolley insulation system, comprise the track being arranged in the groove of flatcar basis, described track both sides are fixed by the pressing plate being arranged on holding-down bolt respectively, below described track and described pressing plate, be disposed with elastic insulated backing plate and billet, between described billet and described flatcar basis, be filled with high-strength grout, between the nut of described holding-down bolt and described pressing plate, be disposed with spring washer and steel washer, the pressure mouth place that described pressing plate contacts with described track is provided with the line with rubber insulating barrier of 2～5mm.
Described holding-down bolt is partly set with insulation tube at described steel washer to the section between described elastic insulated backing plate.
On described holding-down bolt, between described steel washer and described pressing plate, be provided with insulating washer.
In order to solve second technical matters, the present invention is achieved by following technical scheme:
A construction technology for electric flat carriage surface power supply trolley insulation system, comprises the steps:
(1). construction ground foot bolt on flatcar basis;
(2). billet is installed, and is adjusted its absolute altitude and planeness to meeting design requirement;
(3). under billet, with high-strength grout, fill closely knit;
(4). after high-strength grout condenses completely, on billet, add elastic insulated backing plate;
(5). holding-down bolt is at the above exposed portions serve suit of elastic insulated backing plate insulation tube;
(6). lay track;
(7). pressing plate is installed on holding-down bolt, and the pressure mouth place that this pressing plate contacts with track is provided with the line with rubber insulating barrier of 2～5mm;
(8). by the above unnecessary insulation tube excision of pressing plate, and on holding-down bolt installing insulating packing ring, steel washer, spring washer and nut successively, insulating washer is positioned at pressing plate upper surface;
(9). adjust track level measuring and parallelism to after meeting design requirement, by fastening nuts.
The invention has the beneficial effects as follows:
According to the requirement of design technology, what bear ground trolley task is track, as long as can make be greater than >=0.5M of track ground insulation resistance Ω, just can guarantee design and operational requirement.Therefore, insulation system of the present invention forms between insulating press boards and track, and between insulating press boards and bolt, the insulation layer by layer between track and basis, has finally guaranteed be greater than >=0.5M of track insulation resistance value over the ground Ω equally, has met design technology requirement.
Whether ground insulation has not affected track insulation over the ground to every holding-down bolt like this, so the operation of perfusion sulphur-bonded mortar is cancelled, bolt can direct-burried, together construct with foundation concrete, also can adopt ripe back-grouting technology to be anchored in preformed hole, so both having facilitated construction, and accelerated progress, guaranteed quality, and also reduced the discharge of toxic and harmful, is a kind of more convenient, environmental protection, safe, economic flatcar track insulation technique.In addition, the operation of having cancelled sulphur-bonded mortar has also reduced Construction Cost, has increased the economic benefit of engineering.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of electric flat carriage surface power supply trolley insulation system;
Fig. 2 is the structural representation of insulating press boards;
Fig. 3 is the birds-eye view of Fig. 2.
In figure: 1: holding-down bolt, 2: nut, 3: spring washer, 4: steel washer, 5: insulating washer, 6: insulation tube, 7: elastic insulated backing plate, 8: pressing plate, 80: line with rubber insulating barrier, 9: track, 10: bituminous grout, 11: high-strength grout, 12: billet, 13: flatcar basis.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail:
As shown in Figure 1, the present embodiment has disclosed a kind of electric flat carriage surface power supply trolley insulation system, and the track 9 of electric flat carriage is arranged in the groove on flatcar basis 14, and track 9 both sides are fixing by the pressing plate 8 being arranged on holding-down bolt 1 respectively.Track 9 is equipped with elastic insulated backing plate 7 and billet 12 below successively with pressing plate 8, between billet 12 and flatcar basis 14, is filled with high-strength grout 11.Holding-down bolt 1 top is provided with the nut 2 for fixation clip 8, is disposed with spring washer 3 and steel washer 4 between nut 2 and pressing plate 8.
According to the requirement of design technology, what bear ground trolley task is track 9, as long as can make track 9 be greater than >=0.5M of ground insulation resistance Ω, just can guarantee design and operational requirement.Shown in Fig. 2 and Fig. 3, the technical program is mainly the pressure mouth place line with rubber contacting with track 9 at pressing plate 8, forms the line with rubber insulating barrier 80 of 2～5mm, because the effect of electro-insulating rubber makes both not conductings.
In order to make further to guarantee insulation effect, the technical program can be at the exposed portions serve suit insulation tube 6 of holding-down bolt 1, the preferred UPVC of material of insulation tube 6; Between steel washer 4 that can also be on holding-down bolt 1 and pressing plate 8, insulating washer 5 is set, insulating washer 5 is made for good with phenolic aldehyde insulcrete, thus also not conducting between holding-down bolt 1 and pressing plate 8.
Like this, this insulation system has formed between pressing plate 8 and track 9, and between pressing plate 8 and holding-down bolt 1, the insulation layer by layer between track 9 and flatcar basis 14, finally can guarantee the designing requirement of be greater than >=0.5M of track 9 insulation resistance value over the ground Ω equally.
Based on insulation system of the present invention, whether ground insulation has not affected track 9 insulation over the ground to every holding-down bolt 1, and in construction technology, the insulation of holding-down bolt 1 will be cancelled, holding-down bolt 1 direct-burried or with burying and all can after high-strength grout.Therefore the operation of preparation and perfusion sulphur-bonded mortar is also cancelled, the construction technology of the common holding-down bolt of holding-down bolt 1 construction reference.
After holding-down bolt 1 construction, carrying out billet 12 installs: with double nuts, billet 12 is fixedly clamped on holding-down bolt 1, the absolute altitude of adjustment billet 12 and planeness are to meeting design requirement, after adjustment, billet 12 times, with high-strength grout 11, fill closely knit and form screed-coat, after high-strength grout 11 condenses completely, shed the captive nut on billet 12 tops.
Then carrying out track 9 installs: the logical brush of the groove inside face heated bitumen on flatcar basis 14 adds elastic insulated backing plate 7 on billet 12.Holding-down bolt 1 is the long UPVC insulation tube 6 of more than 7 exposed portions serve cover 100mm at elastic insulated backing plate, lays afterwards track 9.Pressing plate 8, phenolic aldehyde insulating washer 5, steel washer 4, spring washer 3, nut 2 are installed successively on holding-down bolt 1, are installed simultaneously 6 excisions of unnecessary UPVC insulation tube, after track 9 absolute altitudes and parallelism are adjusted to and meet design requirement, nut 2 is fastening.Wherein, pressing plate 8 arranges the insulating press boards of 2～5mm line with rubber insulating barrier 80 for the pressure mouth place contacting with track 9.
Again carry out electric installation: i.e. electrical equipment and the circuits such as compensation bus on attachment rail 9.
Finally carry out protective cover construction: treat all to install above, after flatcar trial run and run is normal, by track 9 flatcar basis, both sides 14 grooves with bituminous grout 10 fill and lead up, compacting, to be protected insulating.
Although by reference to the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, can also make the concrete conversion of a lot of forms, within these all belong to protection scope of the present invention.
Claims (1)
1. a construction technology for electric flat carriage surface power supply trolley insulation system, is characterized in that, comprises the steps:
(1). construction ground foot bolt on flatcar basis;
(2). billet is installed, and is adjusted its absolute altitude and planeness to meeting design requirement;
(3). under billet, with high-strength grout, fill closely knit;
(4). after high-strength grout condenses completely, on billet, add elastic insulated backing plate;
(5). holding-down bolt is at the above exposed portions serve suit of elastic insulated backing plate insulation tube;
(6). lay track;
(7). pressing plate is installed on holding-down bolt, and the pressure mouth place that this pressing plate contacts with track is provided with the line with rubber insulating barrier of 2～5mm;
(8). by the above unnecessary insulation tube excision of pressing plate, and on holding-down bolt installing insulating packing ring, steel washer, spring washer and nut successively, insulating washer is positioned at pressing plate upper surface;
(9). adjust track level measuring and parallelism to after meeting design requirement, by fastening nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210024310.8A CN102529750B (en) | 2012-02-03 | 2012-02-03 | Construction technology of insulation structure of ground power supply sliding contact wire of electric flat car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210024310.8A CN102529750B (en) | 2012-02-03 | 2012-02-03 | Construction technology of insulation structure of ground power supply sliding contact wire of electric flat car |
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| CN102529750A CN102529750A (en) | 2012-07-04 |
| CN102529750B true CN102529750B (en) | 2014-01-22 |
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| CN103952950B (en) * | 2014-05-16 | 2016-02-24 | 洛阳双瑞橡塑科技有限公司 | A kind of flush type track of demountable structure |
| CN105113345B (en) * | 2015-09-17 | 2017-12-19 | 柳州汉西鸣建材发展有限公司 | A kind of track acoustic board attachment means and preparation method thereof |
| CN105648850A (en) * | 2016-01-21 | 2016-06-08 | 连云港凯帝重工科技有限公司 | Method for insulating steel rails from concrete |
| CN112982044B (en) * | 2021-03-24 | 2023-01-06 | 广西柳州钢铁集团有限公司 | Construction process for quickly forming integral road bed of road junction |
| CN114934413A (en) * | 2022-06-29 | 2022-08-23 | 中核华辰建筑工程有限公司 | Group ground steel rail construction method |
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| FR2228134B1 (en) * | 1973-05-03 | 1980-04-11 | Nord Ressorts | |
| JP3165675B2 (en) * | 1998-06-01 | 2001-05-14 | 東京フアブリック工業株式会社 | Electrical insulation rail fastening device and insulation pad for iron sleepers |
| CN2435273Y (en) * | 2000-04-07 | 2001-06-20 | 北京通驰轨道技术开发中心 | Insulation sleeper |
| JP3851826B2 (en) * | 2002-02-13 | 2006-11-29 | 財団法人鉄道総合技術研究所 | Railway vehicle track deviation prevention apparatus and railcar track deviation prevention method |
| CN100503970C (en) * | 2007-06-06 | 2009-06-24 | 天津滨海快速交通发展有限公司 | Construction method for embedded guided way at orbit traffic engineering across |
| CN201459534U (en) * | 2009-08-05 | 2010-05-12 | 宝鸡中铁宝桥天元实业发展有限公司 | Temporary beam rail fastener for construction |
| CN202507953U (en) * | 2012-02-03 | 2012-10-31 | 天津二十冶建设有限公司 | Insulation structure for ground power supply sliding contact line of electric flat carriage |
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