CN207241486U - A kind of contact rail expansion joint - Google Patents
A kind of contact rail expansion joint Download PDFInfo
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- CN207241486U CN207241486U CN201721371675.2U CN201721371675U CN207241486U CN 207241486 U CN207241486 U CN 207241486U CN 201721371675 U CN201721371675 U CN 201721371675U CN 207241486 U CN207241486 U CN 207241486U
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- rail
- long
- short
- expansion joint
- rails
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Abstract
The utility model discloses a kind of contact rail expansion joint, is arranged between two conductor rails, and including two long rails and the short rail being arranged between two long rails；Often long rail is fixed with a conductor rail；Under initial mounting state, the gap that compensation conductor rail stretches is reserved between short rail both ends and two long rails；The contact rail expansion joint sets distributor gear, and the distributor gear includes rotating bar, short rail is rotationally connected with the middle part of rotating bar, and both ends are rotatablely connected one end of a push-pull rod respectively；The other end per push-pull rod is rotationally connected with a long rail, short rail is interlocked by the long rail of the distributor gear and two.When two long rail slippages are inconsistent, short rail is to wider one side slip of gap, so that two gap width subtractives are small, make the contact rail expansion joint gap more uniform, thus evade the uneven pantagraph current collector casey triggered in gap, running noises increase, produce electric arc equivalent risk, beneficial to pantagraph current collector along smoothly being slided into by stream interface, make that train power supply is continuous, operates steadily.
Description
Technical field
Expansion pipe technical field is the utility model is related to, more particularly to a kind of contact rail expansion joint.
Background technology
Conductor rail, is arranged at train rail both sides, for train power supply.Train is provided with pantagraph current collector, train travelling process
In, pantagraph current collector is contacted with the rail level of conductor rail, and is slided into along its rail level.
Contact rail expansion joint is installed between two conductor rails.The heat that electric current produces 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, expansion pipe includes two long rails and the short rail being arranged between two long rails.Initial mounting state
Under, the gap stretched for conductor rail is often reserved between long rail and short rail.Each long rail is fixed with a conductor rail, when conductor rail is stretched
During contracting, long rail moves, and short rail slides freely.
Utility model content
The utility model provides a kind of contact rail expansion joint, the contact rail expansion joint be arranged at two conductor rails it
Between, and including two long rails and the short rail being arranged between the two long rails；Fixed per the long rail with a conductor rail；Initial peace
Under dress state, the gap that compensation conductor rail stretches is reserved between the short rail both ends and the two long rails；The conductor rail
Expansion pipe further includes distributor gear；The distributor gear includes rotating bar, is rotationally connected with the middle part of the rotating bar described
Short rail, both ends are rotatablely connected one end of a push-pull rod respectively, and the other end per the push-pull rod is rotationally connected with a long rail,
The short rail is set to be interlocked with the long rail to reduce the stand out in two gaps.
Contact rail expansion joint provided by the utility model, its described short rail pass through the long rail of the distributor gear and two
Interlock, short rail is slid to compared with big gap side and slide, so that two gap width subtractives are small, for background technology, seam
Gap is more uniform, it is possible thereby to evade the uneven pantagraph current collector casey triggered in gap, running noises increase, produce electric arc equivalent risk,
And a gap width can be evaded to be zero and another gap width beyond design requirement extreme condition generation, be beneficial to
Pantagraph current collector makes that train power supply is continuous, operates steadily along smoothly being slided into by stream interface.
In addition, the distributor gear of contact rail expansion joint provided by the utility model, overall structure is simple, convenient to carry out,
And rotation connection realizes that push-and-pull interlocks between each rod piece of distributor gear, without accurate fit structure so that it is reliable, be not easy
Failure, beneficial to saving operation expense.
Alternatively, under initial mounting state, two gap widths are consistent；The middle part and both ends of the rotating bar are each right
There should be a connecting hole, the connecting hole that two connecting holes positioned at both ends are located relatively at middle part is symmetrical；
A connecting hole is corresponding with per the push-pull rod both ends；The distance between two connecting holes of one push-pull rod,
The distance between two connecting holes of another push-pull rod are equal.
Alternatively, the contact rail expansion joint further includes two anchoring clamping plates, and the two anchoring clamping plates are respectively arranged at two
The rail level both sides of the long rail and the short rail, and be fixedly connected with the short rail by bolt and the two long rails slidably
Connection.
Alternatively, the junction of the long rail and the anchoring clamping plate sets the slot hole for bolt sliding at this, the length
Hole extends along the length direction of the long rail.
Alternatively, the long rail level is the inner to one end of the short rail, and the inner face per the long rail is arranged to inclined-plane,
The both ends of the surface of the short rail are also disposed as the inclined-plane parallel with the corresponding long rail inner face.
Alternatively, the inner face of the two long rails is arranged to the inclined-plane being parallel to each other.
Alternatively, the angle of inclination of the inner face of the two long rails is 25 °.
Brief description of the drawings
Fig. 1 is a kind of axis side schematic diagram of specific embodiment of contact rail expansion joint provided by the utility model；
Fig. 2 is the front view of Fig. 1；
Fig. 3 is the top view of Fig. 1；
Fig. 4 is the right view of Fig. 1.
Reference numeral is as follows in Fig. 1-Fig. 4：1 long rail, 11 slot holes, 1a long rail rail surfaces, 2 short rails, 3 gaps, 4 distributor gears,
41 rotating bars, 42 push-pull rods, 5 anchoring clamping plates, 6 switching supports, 7 bolts, 8 axis pins.
Embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings and have
The utility model is described in further detail for body embodiment.
Please refer to Fig.1 the axis side that-Fig. 4, Fig. 1 are a kind of specific embodiment of contact rail expansion joint provided by the utility model
Schematic diagram；Fig. 2 is the front view of Fig. 1；Fig. 3 is the top view of Fig. 1；Fig. 4 is the right view of Fig. 1.
As shown in Figure 1, contact rail expansion joint provided by the utility model includes two long rails 1, the abutting end of two long rails 1 claims
For the inner, opposite end is known as outer end.Short rail 2 is provided between the inner of two long rails 1, often the outer end of long rail 1 is consolidated with a conductor rail
It is fixed.The rail level co-planar arrangement of short rail rail surface and two long rail rail surface 1a with conductor rail, with formed be in contact with pantagraph current collector by
Stream interface.Under train operation state, pantagraph current collector is contacted with by stream interface, and edge is slided into by stream interface.
Under initial mounting state, inner reserved with corresponding short 2 one end of rail of one long rail 1 has the gap 3, another long rail
The 1 inner and other end of corresponding short rail 2 is also reserved and has the gap 3, to provide flexible space to both ends conductor rail, so as to mend
Repay expanding with heat and contract with cold for conductor rail.Specifically, under initial mounting state, two 3 equivalent widths of gap.
Also, as shown in Figure 1, contact rail expansion joint provided by the utility model further includes distributor gear 4, the distribution
Mechanism 4 includes rotating bar 41, and the middle part of the rotating bar 41 is rotationally connected with the short rail 2, and both ends are rotationally connected with one respectively
One end of push-pull rod 42；The other end per the push-pull rod 42 is rotationally connected with a long rail 1.
Contact rail expansion joint specific work process provided by the utility model is as follows：
When two conductor rails are by thermal stretching, two long rails 1 being fixedly connected with two conductor rails slide to short 2 direction of rail, band
Dynamic two push-pull rods 42 are moved to short 2 direction of rail, two push-pull rods 42 is mutually pushed with rotating bar 41.Power is pushed in rotating bar 41
Under effect, each push-pull rod 42 turns with one end that rotating bar 41 is connected with respect to one end that the push-pull rod 42 is connected with corresponding long rail 1
It is dynamic, it is to rotate clockwise using Fig. 2 as visual angle.Meanwhile in the case where two push-pull rods 42 are to thrust, rotating bar 41 is around wherein
Portion rotates, and using Fig. 2 as visual angle, rotating bar 41 rotates counterclockwise.That is, when two conductor rails are by thermal stretching, two seams
Gap 3 reduces, and distributor gear 4 is generally in folded state.
Meanwhile when two conductor rails are different by thermal expansion length, cause two long 1 slippages of rail different.Using Fig. 2 as visual angle,
When the slippage of long rail 1 is more than the slippage of the long rail 1 in right side on the left of such as, under instantaneous state, the gap 3 in left side is narrower than right side
Gap 3；At this time, rotating bar 41 two push-pull rods 42 push effect under, slid to the right while rotating counterclockwise as described above,
Short rail 2 is driven to slide to the right, so that the gap 3 width increase in left side, 3 width of gap on right side reduce.
When two conductor rails are cooled shortening, two long rails 1 being fixedly connected with two conductor rails are slided to the direction away from short rail 2
Move, drive two push-pull rods 42 to be moved to the direction away from short rail 2, two push-pull rods 42 is mutually pulled with rotating bar 41.Rotating
Under the traction force effect of bar 41, each push-pull rod 42 is with one end that rotating bar 41 is connected with respect to the push-pull rod 42 and corresponding long rail 1
Connected one end rotates, and is to rotate counterclockwise using Fig. 2 as visual angle.Meanwhile under the traction force effect of two push-pull rods 42, turn
Lever 41 is rotated around its middle part, and using Fig. 2 as visual angle, rotating bar 41 rotates clockwise.That is, when two conductor rails are cooled shortening
When, two gaps 3 are broadening, and distributor gear 4 is generally in stretched condition.
Meanwhile when the shortening amount of two conductor rails is different, cause two long 1 slippages of rail different, using Fig. 2 as visual angle, such as
When the slippage of the long rail 1 in left side is more than the slippage of the long rail 1 in right side, under instantaneous state, the gap 3 in left side is wider than the gap on right side
3；At this time, rotating bar 41 slides to the left under the traction action of two push-pull rods 42 while rotating clockwise as described above, drives
Short rail 2 slides to the left, so that 3 width of gap in left side reduces, the gap 3 width increase on right side.
As described above, contact rail expansion joint provided by the utility model, its described short rail 2 passes through the distributor gear 4
Interlocked with the two long rails 1, short rail 2 is slid to wider 3 one side slip of gap, so that two gaps, 3 stand out reduces, compared
For background technology, gap 3 is more uniform, it is possible thereby to evade the uneven pantagraph current collector casey triggered in gap 3, running noises increase
Greatly, produce electric arc equivalent risk, and a gap width can be evaded to be zero and another gap width exceed design requirement pole
The generation of limit situation, beneficial to pantagraph current collector along smoothly being slided into by stream interface, makes that train power supply is continuous, operates steadily.
In addition, the distributor gear 4 of contact rail expansion joint provided by the utility model, overall structure is simple, convenient to carry out,
And rotation connection realizes that push-and-pull interlocks between 4 each rod piece of distributor gear, without accurate fit structure, so that reliable, no
It is vulnerable, beneficial to saving operation expense.
Specifically, the rotating bar 41 is connected with the short rail 2 by axis pin 8, the push-pull rod 42 and the rotating bar
41 is hinged.Also, as shown in the figure, being further fixed on two switching supports 6 on the two long rails 1, two switching supports 6 stretch out, with
It is easily installed under state and avoids mounting rail or other equipment；The overhanging end of the push-pull rod 42 and the switching support 6 is hinged, with
Realize the rotation connection with long rail 1.Certainly, if not having the interference of other equipment under installment state, push-pull rod can directly be made
42 are connected on long rail 1 by axis pin 8.
Specifically, as shown in Figs 1-4, in a particular embodiment, the long rail 1 and the short rail 2 are that cross section is in work
The I-rail of word.In two parallel plates of I-rail, the surface of a parallel plates forms rail level, the table of another parallel plates
Face forms rail level opposite face, and the both sides of two parallel plates form rail edge.Between the middle floor both sides of I-rail, two parallel plates
Form two rail chambers.Above-mentioned distributor gear 4 is arranged at the place side of rail level opposite face, in order to implement, and easy to avoid along rail
The pantagraph current collector that face slides into.
More specifically, in a particular embodiment, the two long rails 1 and 2 both sides of short rail set anchoring clamping plate 5.Specifically
, as shown in figure 4, the section of two anchoring clamping plates 5 is similar T-shaped, and its afterbody is respectively embedded into the rail chamber of respective side, and head compresses
In respective side rail along upper.
Also, as shown in Fig. 2, the middle part of anchoring clamping plate 5 is connected by bolt 7 with short rail 2, the both ends of anchoring clamping plate 5 are divided
It is not connected by bolt 7 with two long rails 1.Also, as shown in figure 3, two long rails 1 offer length with the position that anchoring clamping plate 5 is connected
Hole 11, corresponding bolt 7 runs through slot hole 11, and can be slid along the length direction of slot hole 11, makes two long rails 1 and anchoring clamping plate 5
Slidable connection；Short rail 2 opens up fastening circular hole with the position that anchoring clamping plate 5 is connected, and corresponding bolt 7 makes through fastening circular hole
Short rail 2 is fixedly connected with anchoring clamping plate 5, that is to say, that when short rail 2 slides as described above, anchoring clamping plate 5 is also synchronous sliding therewith
Move.
Above-mentioned set-up mode, had not only realized the connection of two long rails 1 and short rail 2, but also realized the opposite anchoring clamping plate 5 of short rail 2
Fixation, the also sliding and short rail 2 and the sliding for anchoring clamping plate 5 without prejudice to the opposite anchoring clamping plate 5 of long rail 1；It is and also favourable
In guiding glide direction.
Further, the middle part of the rotating bar 41 and both ends are respectively corresponding with a connecting hole, and two positioned at both ends
The connecting hole that connecting hole is located relatively at middle part is symmetrical.Meanwhile it is corresponding with a connecting hole per 42 both ends of push-pull rod；One institute
The distance between two connecting holes of push-pull rod 42 are stated, the distance between two connecting holes of another push-pull rod 42 are equal.This
Kind set-up mode, can make the width in two gaps 3 consistent all the time, further beneficial to the uniform of two gaps 3.
Further, the inner face of the two long rails 1 is disposed as inclined-plane, and the both ends of the surface of the short rail 2 are also respectively provided with
For the inclined-plane parallel with corresponding long 1 inner face of rail, for being set compared to plane, smooth beneficial to pantagraph current collector slides into,
Improve pantagraph current collector passes through performance.
Specifically, as shown in the figure, the inner face of the two long rails 1 is arranged to the inclined-plane being parallel to each other, that is to say, that above-mentioned
Each inclined-plane is mutually parallel.Certainly, the inner face of the two long rails 1 can not also be arranged in parallel.
Alternatively, the angle of inclination of the inner face of the two long rails 1 is 25 °.
Contact rail expansion joint provided by the utility model is described in detail above.It is used herein specifically
A example is set forth the principle and embodiment of the utility model, and the explanation of above example is only intended to help to understand this
The method and its core concept of utility model.It should be pointed out that for those skilled in the art, do not departing from
On the premise of the utility model principle, some improvement and modification can also be carried out to the utility model, these are improved and modification
Fall into the protection domain of the utility model claims.
Claims (7)
1. a kind of contact rail expansion joint, is arranged between two conductor rails, and including two long rails (1) and is arranged at two length
Short rail (2) between rail (1)；Fixed per the long rail (1) with a conductor rail；Under initial mounting state, short rail (2) both ends
The gap (3) that compensation conductor rail stretches is reserved between the two long rails (1)；It is characterized in that, the conductor rail expansion
Connector further includes distributor gear (4)；The distributor gear (4) includes rotating bar (41), and the middle part of the rotating bar (41) rotates
The short rail (2) is connected to, both ends are rotatablely connected one end of a push-pull rod (42) respectively, the other end per the push-pull rod (42)
A long rail (1) is rotationally connected with, the short rail (2) is interlocked with the two long rails (1) to reduce two gaps (3)
Stand out.
2. contact rail expansion joint according to claim 1, it is characterised in that under initial mounting state, two gaps
(3) equivalent width；The middle part and both ends of the rotating bar (41) are respectively corresponding with a connecting hole, two connections positioned at both ends
The connecting hole that hole is located relatively at middle part is symmetrical；
A connecting hole is corresponding with per the push-pull rod (42) both ends；Between two connecting holes of one push-pull rod (42) away from
From the distance between two connecting holes of another push-pull rod (42) are equal.
3. contact rail expansion joint according to claim 1, it is characterised in that the contact rail expansion joint further includes two
Clamping plate (5) is anchored, the two anchoring clamping plates (5) are respectively arranged at the rail level both sides of the two long rails (1) and the short rail (2),
And be fixedly connected by bolt (7) with the short rail (2), with two long rail (1) slidable connections.
4. contact rail expansion joint according to claim 3, it is characterised in that the long rail (1) and the anchoring clamping plate
(5) junction sets the slot hole (11) for bolt (7) sliding at this, length side of the slot hole (11) along the long rail (1)
To extension.
5. according to claim 1-4 any one of them contact rail expansion joints, it is characterised in that the long rail (1) faces institute
The one end for stating short rail (2) is the inner, and the inner face per the long rail (1) is arranged to inclined-plane, and the both ends of the surface of the short rail (2) are also equal
It is arranged to the inclined-plane parallel with corresponding long rail (1) inner face.
6. contact rail expansion joint according to claim 5, it is characterised in that the inner face of the two long rails (1) is set
For the inclined-plane being parallel to each other.
7. contact rail expansion joint according to claim 6, it is characterised in that the inner face of the two long rails (1) inclines
Rake angle is 25 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721371675.2U CN207241486U (en) | 2017-10-16 | 2017-10-16 | A kind of contact rail expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721371675.2U CN207241486U (en) | 2017-10-16 | 2017-10-16 | A kind of contact rail expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207241486U true CN207241486U (en) | 2018-04-17 |
Family
ID=61883352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721371675.2U Active CN207241486U (en) | 2017-10-16 | 2017-10-16 | A kind of contact rail expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207241486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107599894A (en) * | 2017-10-16 | 2018-01-19 | 北京控股磁悬浮技术发展有限公司 | A kind of contact rail expansion joint |
-
2017
- 2017-10-16 CN CN201721371675.2U patent/CN207241486U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107599894A (en) * | 2017-10-16 | 2018-01-19 | 北京控股磁悬浮技术发展有限公司 | A kind of contact rail expansion joint |
| CN107599894B (en) * | 2017-10-16 | 2023-08-22 | 北京控股磁悬浮技术发展有限公司 | Expansion joint for contact rail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100124 room 2501, block C, Jin Changan tower, 82 East Fourth Ring Road, Chaoyang District, Beijing. Patentee after: Beijing Maglev Traffic Development Co., Ltd. Address before: 100124 room 2501, block C, Jin Changan tower, 82 East Fourth Ring Road, Chaoyang District, Beijing. Patentee before: Beijing Holding Magnetic Suspension Techn Development Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Contact rail expansion joint Effective date of registration: 20180720 Granted publication date: 20180417 Pledgee: Beijing rail transit technology and Equipment Group Co., Ltd. Pledgor: Beijing Maglev Traffic Development Co., Ltd. Registration number: 2018110000017 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190114 Granted publication date: 20180417 Pledgee: Beijing rail transit technology and Equipment Group Co., Ltd. Pledgor: Beijing Maglev Traffic Development Co., Ltd. Registration number: 2018110000017 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Contact rail expansion joint Effective date of registration: 20190717 Granted publication date: 20180417 Pledgee: Beijing rail transit technology and Equipment Group Co., Ltd. Pledgor: Beijing Maglev Traffic Development Co., Ltd. Registration number: 2019990000736 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200424 Granted publication date: 20180417 Pledgee: Beijing rail transit technology and Equipment Group Co., Ltd. Pledgor: BEIJING CIFU TRANSPORTATION DEVELOPMENT Co.,Ltd. Registration number: 2019990000736 |