CN102501783B - Expansion joint for smooth transition of third rail of subway - Google Patents
Expansion joint for smooth transition of third rail of subway Download PDFInfo
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- CN102501783B CN102501783B CN201110326909.2A CN201110326909A CN102501783B CN 102501783 B CN102501783 B CN 102501783B CN 201110326909 A CN201110326909 A CN 201110326909A CN 102501783 B CN102501783 B CN 102501783B
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- expansion pipe
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Abstract
The invention discloses an expansion joint for smooth transition of a third rail of a subway, belonging to the technical fields of mechanical devices and transportation. The expansion joint combines the functions of temperature compensation of the expansion joint and the smooth transition of a collector shoe of a current collector on a train and can be used for a section needing to install the expansion joint in the third rail of the subway. According to the expansion joint, due to addition of a smooth transition mechanism of the collector shoe of the current collector, not only can the temperature compensation function of the expansion joint be realized, but also the expansion joint has the obvious characteristic of protecting the collector shoe of the current collector. The expansion joint disclosed by the invention is suitable for being used by collector shoes of various current collectors.
Description
Technical field
The invention belongs to mechanical device and technical field of transportation, be specifically related to a kind of subway the 3rd rail expansion joint for smooth transition.
Background technology
3rd rail, also known as contact rail, conductor rail.Third rail system is the vitals of electric power supply system for subway, carries the important task for underground engines transmits electric power.3rd rail of current application mostly is steel aluminum compound structure, and both the 3rd rail main body adopted industrial aluminium, on the surface of industrial aluminium with certain thickness stainless steel band.3rd rail alives, and pantagraph current collector collector shoe and the 3rd rail stainless steel band of underground engines carry out moving contact, thus obtain electric current generation power.This structure makes the 3rd rail have the features such as conductivity water temperature and depth is high, lightweight, wear-resisting, is used widely.Because there is variation of ambient temperature and flowing through the current heating reason of the 3rd rail, the change along with temperature changes by the length of the 3rd rail.In order to adapt to this change; need, in third rail system, expansion pipe is installed; expansion pipe self can realize extending and shortening; thus the change of the 3rd rail length can be offset; prevent Yin Wendu from raising and cause the 3rd rail to elongate or shorten third rail system generation destruction, protect whole third rail system safety.
The expansion pipe that current 3rd rail is applied all has similar structure, both the material of main part of expansion pipe was the 3rd rail, cut along the inclined-plane angled with axis by the 3rd rail a segment length, form expansion pipe fixed track and expansion pipe moving rail, with arrangements of electric connection, expansion pipe fixed track and expansion pipe moving rail are coupled together again, gap is left between expansion pipe fixed track and expansion pipe moving rail, be the increase in line expansion pipe gap by expansion pipe moving rail relative to the movement of expansion pipe fixed track or reduce, continuous current can be formed by arrangements of electric connection, thus formation expansion pipe.As Chinese patent ZL2004200885909.3, CN 101823446 A, CN 101823448 A all belong to above-mentioned situation.Above-mentioned expansion pipe must form gap between expansion pipe fixed track and expansion pipe moving rail, and train pantagraph current collector collector shoe can back and forth repeatedly through the gap place of expansion pipe, certainly will impact pantagraph current collector collector shoe like this, be easy to damage pantagraph current collector collector shoe.
Summary of the invention
The object of the present invention is to provide a kind of subway the 3rd rail expansion joint for smooth transition, realize the conduction of normal current continuity, the elongating or shortening of expansion pipe.
A kind of subway the 3rd rail expansion joint for smooth transition, shunt 1 connects the first expansion pipe moving rail 7 and the second expansion pipe moving rail 9, first expansion pipe moving rail 7 is welded with a stay bearing plate 4, second expansion pipe moving rail 9 is also welded with a stay bearing plate 4, two side end of shunt 1 have fixed orifice, the inner side of shunt 1 is connected with short guide plate 3, the outside of shunt 1 is connected with long guide plate 2, short guide plate 3 and long guide plate 2 have the connecting bore 10 corresponding with shunt 1, by bolt respectively by shunt 1, short guide plate 3, long guide plate 2, stay bearing plate 4 is linked to be an entirety, expansion fish plate 5 is fixed on the first expansion pipe moving rail 7 by 3 fasteners 6, on expansion pipe fixed track 8 and the second expansion pipe moving rail 9.
First expansion pipe moving rail 7 and the second expansion pipe moving rail 9 are provided with Slotted bores 11.
Form in expansion pipe fixed track 8 and the first expansion pipe moving rail 7 one end that the one end in gap or the second expansion pipe moving rail 9 and expansion pipe fixed track 8 form gap and be provided with forked joint 12, described expansion pipe fixed track (8), the end of the first expansion pipe moving rail (7) and the second expansion pipe moving rail (9) is equipped with forked joint (12), forked joint 12 has three prongs 13, gap is there is between adjacent prong 13, the width in gap is larger than the width of single prong 13, and the end of prong 13 is provided with arc structure 14.
The material of described shunt 1 is copper.
The material of described stay bearing plate 4 is identical with the material of the 3rd rail aluminium section bar.
Beneficial effect of the present invention: the present invention combines the three zones of expansion pipe, both current delivery, temperature compensating, seamlessly transit, the conduction of normal current continuity, the elongating or shortening of expansion pipe can not only be realized, and common expansion pipe can be avoided the impact effect of pantagraph current collector collector shoe, the service life of pantagraph current collector collector shoe can be strengthened.
Accompanying drawing explanation
Fig. 1 is subway the 3rd rail expansion joint for smooth transition schematic diagram;
Fig. 2 is subway the 3rd rail expansion joint for smooth transition moving rail schematic diagram;
Fig. 3 is the forked joint schematic diagram of subway the 3rd rail expansion joint for smooth transition;
Fig. 4 is shunt schematic diagram;
In figure, the long guide plate of 1-shunt, 2-, the short guide plate of 3-, 4-stay bearing plate, 5-expansion fish plate, 6-fastener, 7-first expansion pipe moving rail, 8-expansion pipe fixed track, 9-second expansion pipe moving rail, 10-connecting bore, 11-Slotted bores, the forked joint of 12-, 13-prong, arc structure 14.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment 1
A kind of subway the 3rd rail expansion joint for smooth transition (as shown in Figure 1), shunt 1 (as shown in Figure 4) connects the first expansion pipe moving rail 7 and the second expansion pipe moving rail 9, first expansion pipe moving rail 7 is welded with a stay bearing plate 4, second expansion pipe moving rail 9 is also welded with a stay bearing plate 4, two side end of shunt 1 have fixed orifice, the inner side of shunt 1 is connected with short guide plate 3, the outside of shunt 1 is connected with long guide plate 2, short guide plate 3 and long guide plate 2 have the connecting bore 10 corresponding with shunt 1, by bolt respectively by shunt 1, short guide plate 3, long guide plate 2, stay bearing plate 4 is linked to be an entirety, expansion fish plate 5 is fixed on the first expansion pipe moving rail 7 by 3 fasteners 6, on expansion pipe fixed track 8 and the second expansion pipe moving rail 9.First expansion pipe moving rail 7 and the second expansion pipe moving rail 9 are provided with Slotted bores 11 (as shown in Figure 2).Form in expansion pipe fixed track 8 and the first expansion pipe moving rail 7 one end that the one end in gap or the second expansion pipe moving rail 9 and expansion pipe fixed track 8 form gap and be provided with forked joint 12, described expansion pipe fixed track (8), the end of the first expansion pipe moving rail (7) and the second expansion pipe moving rail (9) is equipped with forked joint (12), forked joint 12 has three prongs 13, gap is there is between adjacent prong 13, the width in gap is larger than the width of single prong 13, the end of prong 13 is provided with arc structure 14 (as shown in Figure 3).
The expansion joint for smooth transition of the present embodiment has current delivery, temperature compensating and seamlessly transits three functions.
In current delivery, shunt 1 by being connected with the stay bearing plate 4 be welded on expansion pipe moving rail, thus couples together two expansion pipe moving rails.Shunt 1 is made up of scale copper, overall in a bar-shape.Have fixed orifice in the corresponding end, two sides of shunt 1, by this fixed orifice, shunt 1 is connected with stay bearing plate 4.Because shunt 1 itself is comparatively soft, be therefore provided with short guide plate 3 and long guide plate 2 in the inner side and outer side of shunt, short guide plate 3 and long guide plate 2 and shunt 1 partial fixing, remainder is free state.When expansion joint for smooth transition gap changes, shunt 1 also can move thereupon, and shunt 1 whole perimeter does not change.Owing to there is the clamping action of short guide plate and 3 long guide plates, 2 pairs of shunts 1, shunt 1 can not become slack and undisciplined phenomenon because of the change in expansion joint for smooth transition gap.Shunt 1 is all connected by stainless steel bolt with between stay bearing plate 4, short lead plate 3, long guide plate 2, ensures Joint strenght and prevents fastener from getting rusty.Nut is black nut, and can ensure that pantagraph current collector collector shoe is through expansion pipe, fastener still connects well, prevents from loosening.
In temperature compensating, because temperature traverse can cause the 3rd rail at expansion pipe two ends to elongate or shorten, in order to adapt to this change, expansion pipe also needs to carry out shortening or extending thereupon.The parts realizing this function in the present embodiment mainly comprise long guide plate 2, short guide plate 3, stay bearing plate 4, first expansion pipe moving rail 7, expansion pipe fixed track 8, second expansion pipe moving rail 9, expansion fish plate 5 and respective fastener 6.First expansion pipe moving rail and the second expansion pipe moving rail have Slotted bores 11, and fastener 6 fixes two pieces of expansion fish plates 5 through Slotted bores 11.Expansion fish plate 5 is fixed with expansion pipe orbit determination 8 relative position by middle fastener 6.When expansion joint for smooth transition gap changes, the first expansion pipe moving rail 7, expansion pipe fixed track 8 are moved along expansion fish plate 5 length direction, thus form elongating or shortening of expansion joint for smooth transition gap.
In seamlessly transitting, the present embodiment is cut along the inclined-plane angled with axis by the 3rd rail a segment length, form expansion pipe fixed track 8 and expansion pipe moving rail, with arrangements of electric connection, expansion pipe fixed track 8 and expansion pipe moving rail are coupled together again, gap is left between expansion pipe fixed track 8 and expansion pipe moving rail, realize the increase in expansion pipe gap by expansion pipe moving rail relative to the movement of expansion pipe fixed track 8 or reduce, can continuous current be formed by arrangements of electric connection, thus form expansion pipe.The expansion pipe that this method is formed, inevitably frequently impacts with the collector shoe of process at gap place.Collector shoe, being do not have apertured through common 3rd rail, does not so also just impact.When pantagraph current collector collector shoe is through expansion pipe, because itself is with very strong electric current, if now there is powerful impact again, larger infringement certainly will be caused to pantagraph current collector collector shoe.For avoiding expansion pipe gap to the impact effect of pantagraph current collector collector shoe, the present embodiment has installed prong like 12 additional at expansion pipe gap place.The two ends of expansion pipe fixed track 8 and the first expansion pipe are moved the 7, second expansion pipe moving rail 9 end and the identical forked joint 12 of profile are all housed.Forked joint 12 end is three prongs 13, space is left between adjacent prong, the width in space is larger than prong local width, prong 13 between the prong 13 of such expansion pipe fixed track 8 and the first expansion pipe moving rail 7 or the second expansion pipe moving rail 9 just can enter into the space of the other side each other, so just achieve seamlessly transitting of expansion pipe, can not impact through out-of-date at pantagraph current collector collector shoe.
Claims (4)
1. subway a 3rd rail expansion joint for smooth transition, it is characterized in that, shunt (1) connects the first expansion pipe moving rail (7) and the second expansion pipe moving rail (9), first expansion pipe moving rail (7) is welded with a stay bearing plate (4), second expansion pipe moving rail (9) is also welded with a stay bearing plate (4), two side end of shunt (1) have fixed orifice, the inner side of shunt (1) is connected with short guide plate (3), the outside of shunt (1) is connected with long guide plate (2), short guide plate (3) and long guide plate (2) have the connecting bore (10) corresponding with shunt (1), by bolt respectively by shunt (1), short guide plate (3), long guide plate (2), stay bearing plate (4) is linked to be an entirety, expansion fish plate (5) is fixed on the first expansion pipe moving rail (7) by 3 fasteners (6), on expansion pipe fixed track (8) and the second expansion pipe moving rail (9),
At expansion pipe fixed track (8) two ends, the first expansion pipe moving rail (7) and expansion pipe fixed track (8) form one end that the one end in gap and the second expansion pipe moving rail (9) and expansion pipe fixed track (8) form gap and be equipped with forked joint (12), forked joint (12) has three prongs (13), gap is there is in adjacent prong between (13), the width in gap is larger than the width of single prong (13), and the end of prong (13) is provided with arc structure (14).
2. a kind of subway the 3rd rail expansion joint for smooth transition according to claim 1, it is characterized in that, the first expansion pipe moving rail (7) and the second expansion pipe moving rail (9) are provided with Slotted bores (11).
3. a kind of subway the 3rd rail expansion joint for smooth transition according to claim 1, it is characterized in that, the material of described shunt (1) is copper.
4. a kind of subway the 3rd rail expansion joint for smooth transition according to claim 1, it is characterized in that, the material of described stay bearing plate (4) is identical with the material of the 3rd rail aluminium section bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110326909.2A CN102501783B (en) | 2011-10-25 | 2011-10-25 | Expansion joint for smooth transition of third rail of subway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110326909.2A CN102501783B (en) | 2011-10-25 | 2011-10-25 | Expansion joint for smooth transition of third rail of subway |
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| Publication Number | Publication Date |
|---|---|
| CN102501783A CN102501783A (en) | 2012-06-20 |
| CN102501783B true CN102501783B (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110326909.2A Active CN102501783B (en) | 2011-10-25 | 2011-10-25 | Expansion joint for smooth transition of third rail of subway |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017111984A1 (en) * | 2017-05-31 | 2018-12-06 | Conductix-Wampfler Gmbh | Fixing device for a conductor rail and conductor rail system |
| CN109693582B (en) * | 2017-10-20 | 2022-03-18 | 比亚迪股份有限公司 | Expansion joint |
| CN107878260A (en) * | 2017-10-30 | 2018-04-06 | 镇江大全赛雪龙牵引电气有限公司 | A kind of compensating gear for steel-aluminum compounding conductor rail |
| CN108556686B (en) * | 2018-04-25 | 2020-06-05 | 重庆公共运输职业学院 | Track loop power supply system |
| CN112297960B (en) * | 2019-07-26 | 2022-03-18 | 比亚迪股份有限公司 | Joint device for conductor rail and conductor rail system with same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3955895A (en) * | 1973-07-27 | 1976-05-11 | Societe Dite Aeropar Societe Anonyme Francaise | Rail expansion joint |
| CN2736205Y (en) * | 2004-08-27 | 2005-10-26 | 铁道部电气化工程局宝鸡器材厂 | Expanding and jointing device of railway traffic conductor rail |
| CN101823446A (en) * | 2010-04-28 | 2010-09-08 | 浙江旺隆轨道交通设备有限公司 | Contact rail expansion joint |
| WO2011091554A1 (en) * | 2010-02-01 | 2011-08-04 | 新誉集团有限公司 | Conductive rail joint |
-
2011
- 2011-10-25 CN CN201110326909.2A patent/CN102501783B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3955895A (en) * | 1973-07-27 | 1976-05-11 | Societe Dite Aeropar Societe Anonyme Francaise | Rail expansion joint |
| CN2736205Y (en) * | 2004-08-27 | 2005-10-26 | 铁道部电气化工程局宝鸡器材厂 | Expanding and jointing device of railway traffic conductor rail |
| WO2011091554A1 (en) * | 2010-02-01 | 2011-08-04 | 新誉集团有限公司 | Conductive rail joint |
| CN101823446A (en) * | 2010-04-28 | 2010-09-08 | 浙江旺隆轨道交通设备有限公司 | Contact rail expansion joint |
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| Publication number | Publication date |
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| CN102501783A (en) | 2012-06-20 |
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