CN107650737A - A kind of seamless contact rail expansion joint - Google Patents
A kind of seamless contact rail expansion joint Download PDFInfo
- Publication number
- CN107650737A CN107650737A CN201710963813.4A CN201710963813A CN107650737A CN 107650737 A CN107650737 A CN 107650737A CN 201710963813 A CN201710963813 A CN 201710963813A CN 107650737 A CN107650737 A CN 107650737A
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- China
- Prior art keywords
- rail
- expansion joint
- plate
- slide rails
- slide
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- 239000004020 conductor Substances 0.000 claims abstract description 36
- 238000004873 anchoring Methods 0.000 claims description 30
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000004904 shortening Methods 0.000 description 6
- 230000000007 visual effect Effects 0.000 description 6
- 238000010891 electric arc Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/30—Power rails
- B60M1/305—Joints
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses a kind of seamless contact rail expansion joint, including two slide rails and the sliding block that is arranged between two slide rails；The outer end of two slide rails is fixed with a conductor rail respectively；Sliding block includes plate, and the plate has two oblique opposite inclined-planes；The inner end face of two slide rails is parallel with two inclined-planes of plate respectively；The seamless contact rail expansion joint also includes precompressed spring；Spring compresses sliding block, two inclined-planes of plate is brought into close contact the inner end face of two slide rails, and do not influence the sliding of two slide rails.Seamless contact rail expansion joint provided by the invention, make during conductor rail expands with heat and contract with cold, two inclined-planes of plate are brought into close contact all the time with the inner end face of two slide rails, so that panel surface and two slide rail rail levels be seamlessly connected to be formed it is complete, do not have it is apertured by stream interface, beneficial to pantagraph current collector along smoothly being slided into by stream interface, so as to so that train power supply is continuous, operates steadily.
Description
Technical field
The present invention relates to expansion pipe technical field, more particularly to a kind of seamless contact rail expansion joint.
Background technology
Conductor rail, train rail both sides are arranged at, for train power supply.Train is provided with pantagraph current collector, train operation
Cheng Zhong, pantagraph current collector contact with the rail level of conductor rail, and are slided into along its rail level.
Contact rail expansion joint is installed between two conductor rails.Heat caused by electric current in variation of ambient temperature or operation
Conductor rail temperature change can be caused, conductor rail is expanded with heat and contract with cold.On the one hand, contact rail expansion joint allows certain stroke,
To meet the demand of expanding with heat and contract with cold of conductor rail；On the other hand, contact rail expansion joint provides connection for two conductor rails, to be formed
Completely by stream interface, pass through pantagraph current collector, to meet the power demands of train.
In the prior art, contact rail expansion joint includes two long rails and the short rail being arranged between two long rails.It is each long
Rail is fixed with a conductor rail, two gaps stretched for conductor rail is reserved between short rail both ends and two long rails, when conductor rail stretches
When, long rail moves, and short rail slides freely.In the prior art, the inequality in the presence in gap and two gaps, which easily causes, is flowed
Device jam, running noises are big, produce the problems such as electric arc, influence the steady reliability service of train.
The content of the invention
It is an object of the invention to provide a kind of seamless contact rail expansion joint, i.e., does not have between the rail level of contact rail expansion joint
Gap, so as to evade pantagraph current collector by when be caught in gap risk and train travelling process in due to caused by the inequality of gap fortune
Row noise is big, produces electric arc equivalent risk.
Seamless contact rail expansion joint provided by the invention, is arranged between two conductor rails, the seamless conductor rail expansion
Joint includes two slide rails and the sliding block being arranged between two slide rails；The outer end of two slide rails is consolidated with two conductor rails respectively
It is fixed；The sliding block includes plate, and the plate has two oblique opposite inclined-planes；The inner end face of two slide rails respectively with
Two inclined-planes of the plate are parallel；
The seamless contact rail expansion joint also includes precompressed spring；The spring compresses the sliding block, makes described
Two inclined-planes of plate are brought into close contact the inner end face of two slide rails.
Seamless contact rail expansion joint provided by the invention, make during conductor rail expands with heat and contract with cold, two inclined-planes of plate
It is brought into close contact all the time with the inner end face of two slide rails, so that the rail level of the surface of plate and two slide rails is seamlessly connected to be formed completely
, do not have apertured by stream interface, for background technology, pantagraph current collector jam, the fortune for being had gap to trigger by stream interface can be evaded
Row noise is big, produces electric arc equivalent risk, beneficial to pantagraph current collector along smoothly being slided into by stream interface, makes that train power supply is continuous, operates steadily.
Alternatively, the sliding block also includes fixed block, and the fixed block is integrally formed at the back side of the plate；The nothing
Stitching contact rail expansion joint also includes two anchoring clamping plates；
The two anchoring clamping plates are respectively arranged at two slide rail rail levels and panel surface both sides, and with the fixed block and two institutes
State slide rail slidable connection；And the spring precompressed is shunk between the fixed block and an anchoring clamping plate.
Alternatively, the anchoring clamping plate passes through some bolt connections with the fixed block and the slide rail；The fixed block
Along sliding axially for its corresponding bolt；The junction of the slide rail and the anchoring clamping plate sets the length for bolt sliding at this
Hole, length direction extension of the elongated hole along the slide rail.
Alternatively, the angle of inclination on the inclined-plane of plate two is 25 °.
Alternatively, the spring is placed on alignment pin；The alignment pin runs through the anchoring close to the big end of the plate
Clamping plate, and extend to the fixed block.
Alternatively, the seamless contact rail expansion joint also includes centering body, for making the sliding block be in two slide rails
The centre position of inner spacing；The seamless contact rail expansion joint also includes fixed seat, for installing the centering body.
Alternatively, the fixed seat includes intermediate bar and is integrally formed at the fixed plate at the intermediate bar both ends；Two institutes
State fixed plate and be individually fixed in the two anchoring cleat surfaces；The intermediate bar is fixed between the two anchoring clamping plates, and position
In the opposite side of the panel surface.
Alternatively, the centering body includes rotating bar and two pull bars；Institute is rotationally connected with the middle part of the rotating bar
Intermediate bar is stated, both ends are rotatablely connected with one end of a pull bar respectively；The other end per the pull bar is rotationally connected with
One slide rail；
The middle part and both ends of the rotating bar are respectively provided with a connecting hole, and two connecting holes positioned at both ends are located relatively at middle part
Connecting hole it is symmetrical；Be respectively provided with a connecting hole per the pull bar both ends, between two connecting holes of a pull bar away from
From the distance between two connecting holes of another pull bar are equal.
Brief description of the drawings
Fig. 1 is the overall structure diagram of seamless one angle of contact rail expansion joint provided by the invention；
Fig. 2 is the overall structure diagram of seamless another angle of contact rail expansion joint provided by the invention；
Fig. 3 is that conductor rail is heated under elongation state, the schematic front view of seamless contact rail expansion joint provided by the invention；
Fig. 4 is that conductor rail is cooled under shortening state, the schematic front view of seamless contact rail expansion joint provided by the invention.
Fig. 5 is the schematic top plan view of seamless contact rail expansion joint provided by the invention；
Reference is as follows in Fig. 1-Fig. 5：1 slide rail, 11 elongated holes, 1a slide rail rail levels, 21 plates, 22 fixed blocks, 2a plates
Surface, 3 springs, 4 anchoring clamping plates, 5 bolts, 6 alignment pins, 7 centering bodies, 71 rotating bars, 72 pull bars, 81 intermediate bars, 82 is solid
Fixed board.
Embodiment
In order that those skilled in the art will better understand the technical solution of the present invention, below in conjunction with the accompanying drawings it is and specific real
Applying mode, the present invention is described in further detail.
Fig. 1-2 is refer to, Fig. 1 is that the overall structure of seamless one angle of contact rail expansion joint provided by the invention is illustrated
Figure；Fig. 2 is the overall structure diagram of seamless another angle of contact rail expansion joint provided by the invention.
As shown in figure 1, seamless contact rail expansion joint provided by the invention includes two slide rails 1 and is arranged at two cunnings
Sliding block between rail 1.The outer end of two slide rails 1 is fixed with two conductor rails respectively.The sliding block includes plate 21, and plate 21 has
There are two oblique opposite inclined-planes, the angle of inclination that can be specifically vee-block or trapezoid block and two inclined-planes can be
25°.The inner end face of two slide rails 1 is parallel with two inclined-planes of the plate 21 respectively.
Also, as shown in Fig. 2 the contact rail expansion joint also includes spring 3, under initial mounting state, the spring 3
In its pre-compressed state；The spring 3 compresses the sliding block, two inclined-planes of the plate 21 is brought into close contact two slide rails 1
Inner end face, the panel surface 2a and the slide rail rail level 1a are seamlessly connected.
Fig. 3-Fig. 4 is refer to, Fig. 3 is that conductor rail is heated under elongation state, and seamless conductor rail expansion provided by the invention connects
The schematic front view of head；Fig. 4 is that conductor rail is cooled under shortening state, the main view of seamless contact rail expansion joint provided by the invention
Schematic diagram.
Specifically, as shown in figure 3, when conductor rail is by thermal stretching, two slide rails 1 are therewith to sliding block direction sliding (diagram
The direction of arrow), the spacing between the inner of two slide rail 1 reduces, and pushes inner end face of the plate 21 along two slide rails 1 to the direction of spring 3
(diagram is upward) sliding, makes spring 3 further be compressed.The spring 3 compressed compresses downwards sliding block, makes two inclined-planes of plate 21
It is brought into close contact with two slide rails, 1 inner end face.
Specifically, as shown in figure 4, when conductor rail is cooled shortening, two slide rails 1 slide to the direction away from sliding block therewith
(shown by arrow direction), the spacing increase between two sliding block the inners.Now, because spring 3 is initially in its pre-compressed state, so as to
Remain able to sliding block apply it is downward compress power, make direction (diagram of the plate 21 along 1 inner end of slide rail away from spring 3
Slide downwards), two inclined-planes and two slide rails, 1 inner end face for making plate 21 are brought into close contact.
As described above, seamless contact rail expansion joint provided by the invention, make during conductor rail expands with heat and contract with cold, plate
The inner end face on 21 two inclined-planes and two slide rails 1 is brought into close contact all the time, so that panel surface 2a and two slide rail rail level 1a are seamless
Connection formed it is complete, do not have it is apertured by stream interface, for background technology, can evade by stream interface have that gap triggers by
Flow that device jam, running noises are big, produce electric arc equivalent risk, beneficial to pantagraph current collector along smoothly being slided into by stream interface, make train power supply it is continuous,
Operate steadily.
Specifically, as shown in Fig. 2 the sliding block also includes fixed block 22, the fixed block 22 is integrally formed at the plate
The surface opposite face at the back side of block 21, i.e. plate 21.Specifically, the fixed block 22 can with the plate 21 is near vertical sets
Put.
More specifically, as shown in Fig. 2 the seamless contact rail expansion joint also includes two anchoring clamping plates 4, two anchorings
Clamping plate 4 is respectively arranged at two slide rail rail level 1a and panel surface 2a both sides.In a particular embodiment, the slide rail 1 is transversal
Face is in the I-rail of I-shaped.In two parallel plates of I-rail, the surface of a parallel plates forms slide rail rail level 1a, and two is parallel
The both sides of plate body form rail edge.Two rail chambers are formed between the middle floor both sides of I-rail, two parallel plates.Two anchoring clamping plates 4
Section it is similar T-shaped, and its afterbody is respectively embedded into the rail chamber of respective side, and head presses on the rail of respective side along upper.
More specifically, as shown in Fig. 2 the seamless contact rail expansion joint also includes fixed seat, the fixed seat includes
Intermediate bar 81, the intermediate bar 81 is fixed between the two anchoring clamping plates 4, and is located at panel surface 2a opposite sides.
Also, as shown in Fig. 2 the fixed seat also includes being integrally formed at the fixed plate 82 at the both ends of intermediate bar 81,
Two fixed plates 82 are respectively positioned at two anchoring clamping plate 4 surfaces.
Fig. 2 and Fig. 5 are refer to, Fig. 5 is the schematic top plan view of seamless contact rail expansion joint provided by the invention.
In a particular embodiment, two middle parts of anchoring clamping plate 4 are sequentially passed through positioned at slide rail rail level 1a by two bolts 5
The fixed plate 82 and anchoring clamping plate 4 of side, fixed block 22 and the anchoring clamping plate 4 positioned at slide rail rail level 1a opposite sides and fixation
Plate 82.It should be appreciated that two bolt 5 for penetrating the fixed block 22 has no effect on axial direction of the fixed block 22 along two bolt 5
Slide, that is, illustrate above-below direction action.
Meanwhile two anchoring clamping plate 4 both ends respectively pass through a slidable connection of 5 and two slide rail of bolt 1.Specifically, such as Fig. 5
Shown, two slide rails 1 and anchoring clamping plate 4 junction offer elongated hole 11, length direction extension of the elongated hole 11 along slide rail 1, at this
Bolt 5 runs through corresponding elongated hole 11, and can be slid along the length direction of elongated hole 11, to realize two slide rails 1 and anchoring clamping plate 4
Slidable connection.Certainly, other connected modes in addition to bolt are also possible.
Now, as shown in figure 5, the precompressed of the spring 3 shrinks in the fixed block 22 with (being illustrated close to the plate 21 end greatly
Upside) the anchoring clamping plate 4 between.In addition, the middle part of anchoring clamping plate 4 is additionally provided with alignment pin 6, alignment pin 6, which sequentially passes through, to be leaned on
The fixed plate 82 and anchoring clamping plate 4 that nearly plate 21 is held greatly, and extend to fixed block 22.Spring 3 is placed on the alignment pin 6, can
To prevent spring 3 from coming off.Please also refer to Fig. 2, in order to understand.
Please continue to refer to Fig. 2.
Further, the contact rail expansion joint also includes centering body 7.As shown in Fig. 2 centering body 7 includes turning
The pull bar 72 of lever 71 and two.The middle part of the rotating bar 71 is rotatablely connected with above-mentioned intermediate bar 81, both ends respectively with per described
One end rotation connection of pull bar 72.The other end per the pull bar 72 is rotationally connected with a slide rail 1.Specifically, institute
It can be hinged to state rotation connection.
The middle part and both ends of the rotating bar 71 are respectively provided with a connecting hole；Two connections positioned at both ends are located relatively at middle part
Connecting hole it is symmetrical.A connecting hole is respectively provided with per the both ends of pull bar 72, between two connecting holes of a pull bar 72
The distance between distance, two connecting holes of another pull bar 72 it is equal.
It refer to Fig. 3-Fig. 4.
The specific work process of centering body 7 is as follows：
As shown in figure 3, when two slide rails 1 slide to sliding block direction, drive two pull bars 72 also to be moved to sliding block direction, make
Two pull bars 72 mutually push with rotating bar 71.In the case where rotating bar 71 is to thrust, each pull bar 72 and rotating bar 71
Connected one end rotates relative to one end that the pull bar 72 is connected with slide rail 1, is to rotate counterclockwise using Fig. 3 as visual angle.Together
When, in the case where two pull bars 72 are to thrust, rotating bar 71 rotates around its middle part, and using Fig. 3 as visual angle, rotating bar 71 is clockwise
Rotate.That is, when two conductor rails are by thermal stretching, the centering body 7 is generally in folded state.
Meanwhile when two conductor rails are by thermal expansion length difference, cause the slippage of two slide rail 1 different.Using Fig. 3 as visual angle,
When the slippage of slide rail 1 is more than the slippage of right side slide rail 1 on the left of such as, rotating bar 71 pushes effect two pull bars 72
Under, moved right while rotating clockwise as described above, band movable slider slides to the right, so that sliding block is in two slide rails 1
Hold the centre position of spacing.
As shown in figure 4, when two conductor rails are cooled shortening, two slide rails 1 being fixedly connected with two conductor rails are to away from sliding
The direction sliding of block, drives two pull bars 72 also to be moved to the direction away from sliding block, makes two pull bars 72 and rotating bar 71 mutual
Drawing.Under the traction force effect of rotating bar 71, each pull bar 72 pull bar 72 relative with one end that rotating bar 71 is connected
The one end being connected with slide rail 1 rotates, and is to rotate clockwise using Fig. 4 as visual angle.Meanwhile in the drawing masterpiece of two pull bars 72
Under, rotating bar 71 rotates around its middle part, and using Fig. 4 as visual angle, rotating bar 71 rotates counterclockwise.That is, when two conductor rails
Be cooled shortening when, the centering body 7 is generally in stretched condition.
Meanwhile when the shortening amount difference of two conductor rails, cause the slippage of two slide rail 1 different, using Fig. 4 as visual angle, such as
When the slippage of left side slide rail 1 is more than the slippage of right side slide rail 1, rotating bar 71 is under the traction action of two pull bars 72, such as
It is moved to the left while being rotated counterclockwise described in upper, band movable slider slides to the left, so that sliding block is in two slide rails, 1 inner spacing
Centre position.
As described above, set centering body 7, make during conductor rail expands with heat and contract with cold, sliding block is all the time in two slide rails 1
The centre position of spacing is held, to ensure that sliding block can be with the inner end faces of two slide rails 1 while being brought into close contact, so as to evade cunning
Block is only bonded with the inner end face of a slide rail 1 caused by deviateing centre position or is not bonded with the inner end face of two slide rails 1
Risk, more conducively ensure to be formed it is complete, do not have it is apertured by stream interface.
Seamless contact rail expansion joint provided by the present invention is described in detail above.It is used herein specifically
Individual example is set forth to the principle and embodiment of the present invention, and the explanation of above example is only intended to help and understands the present invention
Method and its core concept.It should be pointed out that for those skilled in the art, original of the invention is not being departed from
On the premise of reason, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into right of the present invention and wanted
In the protection domain asked.
Claims (8)
1. a kind of seamless contact rail expansion joint, is arranged between two conductor rails, it is characterised in that the seamless conductor rail expansion
Joint includes two slide rails (1) and the sliding block being arranged between two slide rails (1)；The outer end of two slide rails (1) respectively with
Two conductor rails are fixed；The sliding block includes plate (21), and the plate (21) has two oblique opposite inclined-planes；Two cunnings
The inner end face of rail (1) is parallel with two inclined-planes of the plate (21) respectively；
The seamless contact rail expansion joint also includes precompressed spring (3)；The spring (3) compresses the sliding block, makes institute
Two inclined-planes for stating plate (21) are brought into close contact the inner end face of two slide rails (1).
2. seamless contact rail expansion joint according to claim 1, it is characterised in that the sliding block also includes fixed block
(22), the fixed block (22) is integrally formed at the back side of the plate (21)；The seamless contact rail expansion joint also includes
Two anchoring clamping plates (4)；
The two anchoring clamping plates (4) are respectively arranged at two slide rail rail levels (1a) and panel surface (2a) both sides, and with the fixation
Block (22) and two slide rail (1) slidable connections；And spring (3) precompressed shrinks in the fixed block (22) and an anchor
Gu between clamping plate (4).
3. seamless contact rail expansion joint according to claim 2, it is characterised in that it is described anchoring clamping plate (4) with it is described
Fixed block (22) and the slide rail (1) by bolt stem (5) if connected；The fixed block (22) can be along its corresponding bolt (5)
Slide axially；The junction of the slide rail (1) and the anchoring clamping plate (4) sets the elongated hole for bolt (5) sliding at this
(11), length direction extension of the elongated hole (11) along the slide rail (1).
4. seamless contact rail expansion joint according to claim 1, it is characterised in that incline on the inclined-plane of plate (21) two
Rake angle is 25 °.
5. seamless contact rail expansion joint according to claim 1, it is characterised in that the spring (3) is placed on alignment pin
(6) on；The alignment pin (6) runs through the anchoring clamping plate (4) held greatly close to the plate (21), and extends to the fixation
Block (22).
6. according to the seamless contact rail expansion joint described in claim any one of 1-5, it is characterised in that the seamless conductor rail
Expansion pipe also includes centering body (7), for making the sliding block be in the centre position of two slide rails (1) inner spacing；It is described
Seamless contact rail expansion joint also includes fixed seat, for installing the centering body (7).
7. seamless contact rail expansion joint according to claim 6, it is characterised in that the fixed seat includes intermediate bar
(81) and it is integrally formed at the fixed plate (82) at the intermediate bar (81) both ends；Two fixed plates (82) are individually fixed in two
Described anchoring clamping plate (4) surface；The intermediate bar (81) is fixed between the two anchoring clamping plates (4), and is located at the plate
The opposite side on surface (2a).
8. seamless contact rail expansion joint according to claim 7, it is characterised in that the centering body (7) includes turning
Lever (71) and two pull bars (72)；The intermediate bar (81), both ends difference are rotationally connected with the middle part of the rotating bar (71)
It is rotatablely connected with one end of a pull bar (72)；The other end per the pull bar (72) is rotationally connected with a slide rail
(1)；
The middle part and both ends of the rotating bar (71) are respectively provided with a connecting hole, and two connecting holes positioned at both ends are located relatively at middle part
Connecting hole it is symmetrical；A connecting hole, two connecting holes of a pull bar (72) are respectively provided with per the pull bar (72) both ends
The distance between, the distance between two connecting holes of another pull bar (72) are equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710963813.4A CN107650737B (en) | 2017-10-16 | 2017-10-16 | Expansion joint for seamless contact rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710963813.4A CN107650737B (en) | 2017-10-16 | 2017-10-16 | Expansion joint for seamless contact rail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107650737A true CN107650737A (en) | 2018-02-02 |
| CN107650737B CN107650737B (en) | 2024-06-28 |
Family
ID=61118504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710963813.4A Active CN107650737B (en) | 2017-10-16 | 2017-10-16 | Expansion joint for seamless contact rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107650737B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109159721A (en) * | 2018-11-02 | 2019-01-08 | 湖南磁浮技术研究中心有限公司 | Seamless conductor rail expansion connecting device |
| CN110303950A (en) * | 2019-08-09 | 2019-10-08 | 中铁高铁电气装备股份有限公司 | Modular expansion element of contact rail power supply system |
| CN110509820A (en) * | 2018-05-21 | 2019-11-29 | 比亚迪股份有限公司 | Connection device for connecting conductor rails and conductor rail assembly having the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110509820A (en) * | 2018-05-21 | 2019-11-29 | 比亚迪股份有限公司 | Connection device for connecting conductor rails and conductor rail assembly having the same |
| CN109159721A (en) * | 2018-11-02 | 2019-01-08 | 湖南磁浮技术研究中心有限公司 | Seamless conductor rail expansion connecting device |
| CN110303950A (en) * | 2019-08-09 | 2019-10-08 | 中铁高铁电气装备股份有限公司 | Modular expansion element of contact rail power supply system |
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| CN107650737B (en) | 2024-06-28 |
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