CN106926753A - Flexible mobile network sidesway integral-rotation bracket device - Google Patents
Flexible mobile network sidesway integral-rotation bracket device Download PDFInfo
- Publication number
- CN106926753A CN106926753A CN201710214839.9A CN201710214839A CN106926753A CN 106926753 A CN106926753 A CN 106926753A CN 201710214839 A CN201710214839 A CN 201710214839A CN 106926753 A CN106926753 A CN 106926753A
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- Prior art keywords
- integral
- bracket
- cantilever
- rotation
- sidesway
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 238000005452 bending Methods 0.000 claims abstract description 22
- 229910000679 solder Inorganic materials 0.000 claims abstract description 22
- 239000012212 insulator Substances 0.000 claims abstract description 17
- 230000003373 anti-fouling effect Effects 0.000 claims abstract description 14
- 230000007704 transition Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract description 2
- 230000003137 locomotive effect Effects 0.000 description 6
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000000707 wrist Anatomy 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 210000002310 elbow joint Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 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
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The present invention relates to a kind of flexible mobile network sidesway integral-rotation bracket device.Be there is no in moveable contact line system using sidesway compliant mechanism, what is come into operation is stiff cantilevers formula structure, or upper act formula movement linkage.The adjustable cantilever base of T-shaped integral-rotation of the invention is installed on pillar and Up/down base is general, and the adjustable fastener shaft of screw thread long, the adjustable fastening outer shaft sleeve groove profile connection inner thread sleeve of screw thread long are installed between Up/down base；Integral solder round steel pipe bending cam combination bracket side is connected to groove profile and connects inner thread sleeve upper and lower ends by a pair antifouling splicing type bracket insulators；Integral solder round steel pipe bending cam combination bracket opposite side is provided with the carrier cable bearing and contact line elastic fixing device of self-lubricating bearing.The present invention can according to the Impact direction of carrier cable and contact line can voluntarily Positive rotational, compensated with the traveling that temperature change compensation and external force cause, the accurate effect being oriented to.
Description
Technical field
The present invention relates to electrification railway contact net technical field, and in particular to a kind of flexible mobile network sidesway integral-rotation
Bracket device.
Background technology
Common flexible mobile network hanging and locating device axiality and rotary freedom are not enough, the uniform elastic at anchor point
Degree is poor, serious wear after junction swings between parts, by as many as parts body wear 60% after field observation 2 years,
Deformation is more serious, and function component structural anisotropy of the same race is big, and parts interchangeability is poor.Common mobile catenary
Once there is elbow joint pin once occurred to rub in bracket hanging and locating device, the failure such as wire strand breakage has a strong impact on train fortune
Row safety, long-term use forms potential safety hazard.
The content of the invention
It is flexible new side shifting type it is an object of the invention to provide a kind of flexible mobile network sidesway integral-rotation bracket device
The indispensable middle bracket hanging and locating device of mobile catenary.
The technical solution adopted in the present invention is：
Flexible mobile network sidesway integral-rotation bracket device, it is characterised in that：
Including the adjustable cantilever base of T-shaped integral-rotation, groove profile connection inner thread sleeve, screw thread long is adjustable fastener shaft, antifouling grafting
Type bracket insulator and integral solder round steel pipe bending cam combination bracket；
The T-shaped adjustable cantilever base of integral-rotation is installed on pillar and Up/down base is general, and screw thread long is installed between Up/down base can
Adjust fastener shaft, the adjustable fastening outer shaft sleeve groove profile connection inner thread sleeve of screw thread long；
Integral solder round steel pipe bending cam combination bracket side is connected to groove profile by a pair antifouling splicing type bracket insulators
Connection inner thread sleeve upper and lower ends；Integral solder round steel pipe bending cam combination bracket opposite side is provided with self-lubricating bearing
Carrier cable bearing and contact line elastic fixing device.
Integral solder round steel pipe bending cam combination bracket includes Horizontal Cantilever and inclined cantilever, before Horizontal Cantilever front end and inclined cantilever
End is intersecting, and Horizontal Cantilever rear end is connected with antifouling splicing type bracket insulator respectively with inclined cantilever rear end；
It is provided between Horizontal Cantilever front end and inclined cantilever rear end by the positioning pipe of arc-shaped transition to linear.
Vertical cantilever support is provided between Horizontal Cantilever rear end and inclined cantilever rear end.
Integral solder round steel pipe bending cam combination bracket Horizontal Cantilever front end sets round and installs holding with self-lubricating bearing
Power rope bearing, the correspondence position on the positioning pipe of lower section installs contact line elastic fixing device.
Big umbellule arranged for interval on antifouling splicing type bracket insulator.
T-shaped integral-rotation is adjustable cantilever base using double group needle bearing or thrust bearings, with bearing (ball) cover and O-shaped close
Seal.
The present invention has advantages below：
1st, during the present invention can be used for large-scale handling operation area or train speed compared with lower curtate electrifing railway contacting net system, it is used for
Suspension during large-scale loading place as contact net positions support structures, smooth accessible contact net can be moved into field side.Will
Coefficient of friction at rotary shaft is improved to 0.01-0.03, and the Impact direction according to wire is voluntarily adjusted, with vary with temperature from
By play, the accurate effect being oriented to can compensate the effect of mobile network power end and the outside input power skew of restoring force end again.
2nd, the present invention can according to the Impact direction of carrier cable and contact line can voluntarily Positive rotational, with temperature change compensation
And the traveling that external force causes is compensated, the accurate effect being oriented to.
3rd, at present invention entirety bracket rotary joint using interference fit bearing can effectively reduce parts between rub
Abrasion, the carrier cable bearing of embedded self-lubricating bearing, contact line fixing device with spring function and anti-with self-cleaning ability
Pollution flashover type insulator, improves the service life of the present apparatus.
Brief description of the drawings
Fig. 1 is the schematic diagram of flexible mobile network sidesway integral-rotation insulation bracket device.
In figure, 1-T type integral-rotations are adjustable cantilever base, 2- groove profiles connection inner thread sleeve, fastening that 3- screw threads long are adjustable
Axle, the antifouling splicing type bracket insulators of 4-, 5- integral solder round steel pipe bending cam combination brackets, 6- holding with self-lubricating bearing
Power rope bearing, 7- contact line elastic fixing devices.
Specific embodiment
With reference to specific embodiment, the present invention will be described in detail.
Locomotive type mainly has internal combustion to adjust machine transport or electric locomotive to transport in current van container cargo handling operation area
It is defeated.Mobile contact net electricity getting device need to be set using electric locomotive transport, its mechanical movement model is parallel multigroup connecting rod machine
Structure.Drive device is arranged on locomotive and sails end into, can meet two way demand.Driven end is middle movable rotary bracket device
Contact net according to setting removes different its movement bracket device direction of motion difference in position, and the not contour mode of removing of contact net can
Bracket device, contour Cai Yong the apparatus of the present invention for being moved to side of contact net are moved using upper act formula --- the mobile net side of flexibility
Move integral-rotation insulation bracket device.Apparatus of the present invention consumption is maximum in mobile network system, degree of rotating freely, axiality reliability
Property require very high, the particularly synchronism of mechanical movement, directly affect the operating of system.
Large-scale handling operation area normal flexible mobile catenary is once used for Kunming container node station, the bracket knot of mobile network
Structure is upper act formula, and upper act formula bracket joint is provided without bearing arrangement, is articulated and connected so that up and down for a long time between parts cause
Serious wear, wire rope transfers initial force, due to transmission distance about 800m, power transmission is uneven after expanding with heat and contract with cold, and causes adjacent
Bracket in span is asynchronous, and card, disconnected accident occur after moving displacement difference accumulation.
Flexible mobile catenary of the present invention sidesway integral-rotation insulation bracket device, using overall bracket knot
Structure, carrier cable and contact line hang, are fixed on overall bracket, and when locomotive is sailed into, contact net is lateral under the drive of overall bracket
Move to circuit top；After locomotive is rolled away from, crane carries out handling operation, and contact net laterally moves to field under the drive of overall bracket
Side.Carrier cable and the energy rotation of contact line bearing, effectively prevent from reversing moment of flexure in moving process.
The present invention is applied to long line cargo handling area or other train speed per hours compared with lower curtate, the base being connected with pillar
Using the structure with rolling bearing system coaxial up and down, while fully ensuring that the axiality of overall bracket, flexible rotation turns
It is fast uniform, there is no abrasion, the clamping stagnation between the connection of gap.Bracket uses integral solder structure, and the outer unstable phenomenon of plane does not occur,
The field side that moves to of contact net safety can be ensured that loading place carries out safety work.
A kind of flexible mobile network sidesway integral-rotation bracket device of the present invention, including the adjustable wrist of T-shaped integral-rotation
Arm base, groove profile connection inner thread sleeve, screw thread long is adjustable fastener shaft, antifouling splicing type bracket insulator and integral solder round steel
Pipe bending cam combination bracket.
The T-shaped adjustable cantilever base of integral-rotation is installed on pillar and Up/down base is general, and spiral shell long is installed between Up/down base
Line is adjustable fastener shaft, the adjustable fastening outer shaft sleeve groove profile connection inner thread sleeve of screw thread long, three's connection is integral and is fastened,
Realize seamless connectivity.
Integral solder round steel pipe bending cam combination bracket side is connected to by a pair antifouling splicing type bracket insulators
Groove profile connects inner thread sleeve upper and lower ends；Integral solder round steel pipe bending cam combination bracket opposite side is provided with self-lubricating
The carrier cable bearing and contact line elastic fixing device of bearing.
Integral solder round steel pipe bending cam combination bracket includes Horizontal Cantilever and inclined cantilever, before Horizontal Cantilever front end and inclined cantilever
End is intersecting, and Horizontal Cantilever rear end is connected with antifouling splicing type bracket insulator respectively with inclined cantilever rear end.Horizontal Cantilever front end and oblique wrist
It is provided between arm rear end by the positioning pipe of arc-shaped transition to linear.It is provided between Horizontal Cantilever rear end and inclined cantilever rear end perpendicular
Straight cantilever support.Integral solder round steel pipe bending cam combination bracket Horizontal Cantilever front end sets round and installs band self-lubricating bearing
Carrier cable bearing, correspondence position on the positioning pipe of lower section installs contact line elastic fixing device.
Integral solder round steel pipe bending cam combination bracket end firm banking uses two-rolling bearing type adjustable base.It is anti-
Dirty splicing type bracket insulator is using the big umbellule cabinet-type of organic synthesis and with automatic detection electromagnetic field intensity distribution function.
Integral solder round steel pipe bending cam combination bracket is using seamless steel pipe entirety rigid connection, connectionless parts.Band self-lubricating bearing
Carrier cable bearing inside be fixed on Horizontal Cantilever without sliding by round.Contact line elastic fixing device 7 is used with positioning pipe
Hem type is connected, and alleviates pantograph lifting force.Single unit system combination can guarantee that axiality gapless is rotated freely.
The T-shaped adjustable cantilever base body housing of integral-rotation is used and is not less than 45# steel alloy materials.Using double groups of needle roller axles
Hold or thrust bearing, with bearing (ball) cover and O-ring seal, inner thread sleeve uses stainless steel.
Groove profile is connected inner thread sleeve material and is welded using seamless steel pipe, and tapping is carried out inside two ends.Integral solder
Round steel pipe bending cam combination bracket uses section bar bending technique.
The adjustable fastener shaft of screw thread long runs through the upper and lower T-shaped adjustable cantilever base of integral-rotation and groove profile connection inner thread sleeve
The assembling of overall bracket is realized into vertical rotating mechanism, shape extrusion, material is used and is not less than 45# steel.
Antifouling splicing type bracket insulator can use composite organic insulator silicon rubber or other materials, and connectivity port is symmetrical
Structure, is followed closely using double-pin and connected, and with adjustment function.
The base of the overall bracket of apparatus of the present invention is designed for upper and lower double rolling bearing, it is ensured that axiality can ensure
0.06mm.Messenger Wire base is internally embedded interference fit self-lubricating bearing, and the free degree of rotation is higher.Contact line fixing device is used
Spring assembly, can ensure that mechanical lifting 50mm ~ 100mm when being contacted with pantograph.Mobile network folding work switching state, the present invention
Device followability is good, wire retractable and play.
Bracket Guan Jun uses 20# or Q345B seamless steel pipes, welding node to be processed according to continuous line welding, overall after welding
Galvanizing by dipping.All of shaft element can be using the steel alloy material for being not less than 40Cr.Mobile, rotation etc. has the free degree to require
The equal interference fit bearing of turning joint, assembling bearing metapore gap shrinks to 0.5mm, after assembling each connection parts between connect
Pin axle flexible rotating, without catching phenomenon.
After embedded self-lubricating bearing at single pin joint, the vibration number of shop test is not less than 2,000,000 times, times of fatigue 50
Ten thousand times.Device rotates flexible after experiment, and energy normal work, wear extent is not more than 0.5mm（It is micro- to see polishing scratch）.
Present disclosure is not limited to cited by embodiment, and those of ordinary skill in the art are by reading description of the invention
And any equivalent conversion taken technical solution of the present invention, it is claim of the invention and is covered.
Claims (6)
1. flexible mobile network sidesway integral-rotation bracket device, it is characterised in that：
Including the adjustable cantilever base of T-shaped integral-rotation（1）, groove profile connection inner thread sleeve（2）, the adjustable fastener shaft of screw thread long（3）、
Antifouling splicing type bracket insulator（4）With integral solder round steel pipe bending cam combination bracket（5）；
The T-shaped adjustable cantilever base of integral-rotation（1）It is installed on pillar and Up/down base is general, screw thread long is installed between Up/down base
Adjustable fastener shaft（3）, the adjustable fastener shaft of screw thread long（3）Overcoat groove profile connects inner thread sleeve（2）；
Integral solder round steel pipe bending cam combination bracket（5）Side passes through a pair antifouling splicing type bracket insulators（4）Connection
Inner thread sleeve is connected to groove profile（2）Upper and lower ends；Integral solder round steel pipe bending cam combination bracket（5）Opposite side is provided with
Carrier cable bearing with self-lubricating bearing（6）With contact line elastic fixing device（7）.
2. flexible mobile network sidesway integral-rotation bracket device according to claim 1, it is characterised in that：
Integral solder round steel pipe bending cam combination bracket（5）Including Horizontal Cantilever and inclined cantilever, before Horizontal Cantilever front end and inclined cantilever
End is intersecting, Horizontal Cantilever rear end and inclined cantilever rear end respectively with antifouling splicing type bracket insulator（4）Connection；
It is provided between Horizontal Cantilever front end and inclined cantilever rear end by the positioning pipe of arc-shaped transition to linear.
3. flexible mobile network sidesway integral-rotation bracket device according to claim 2, it is characterised in that：
Vertical cantilever support is provided between Horizontal Cantilever rear end and inclined cantilever rear end.
4. flexible mobile network sidesway integral-rotation bracket device according to claim 3, it is characterised in that：
Integral solder round steel pipe bending cam combination bracket（5）Horizontal Cantilever front end sets round and installs the load with self-lubricating bearing
Rope bearing（6）, the correspondence position installation contact line elastic fixing device on the positioning pipe of lower section（7）.
5. flexible mobile network sidesway integral-rotation bracket device according to claim 1, it is characterised in that：
Antifouling splicing type bracket insulator（4）On big umbellule arranged for interval.
6. flexible mobile network sidesway integral-rotation bracket device according to claim 1, it is characterised in that：
The T-shaped adjustable cantilever base of integral-rotation（1）Using double groups of needle bearings or thrust bearing, with bearing (ball) cover and O-shaped close
Seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214839.9A CN106926753A (en) | 2017-04-01 | 2017-04-01 | Flexible mobile network sidesway integral-rotation bracket device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214839.9A CN106926753A (en) | 2017-04-01 | 2017-04-01 | Flexible mobile network sidesway integral-rotation bracket device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106926753A true CN106926753A (en) | 2017-07-07 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710214839.9A Pending CN106926753A (en) | 2017-04-01 | 2017-04-01 | Flexible mobile network sidesway integral-rotation bracket device |
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| Country | Link |
|---|---|
| CN (1) | CN106926753A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246993A (en) * | 2017-07-31 | 2017-10-13 | 株洲时代新材料科技股份有限公司 | A kind of mechanical property test device |
| CN107380206A (en) * | 2017-08-25 | 2017-11-24 | 中国铁道科学研究院东郊分院 | The performs device and its system of contact net geometric parameter adjust automatically |
| CN108297739A (en) * | 2018-03-16 | 2018-07-20 | 中铁第勘察设计院集团有限公司 | T-type, which rotates integrally, can adjust cantilever base |
| CN108357394A (en) * | 2018-03-16 | 2018-08-03 | 中铁第勘察设计院集团有限公司 | Bracket is adjustable fastening shaft device |
| CN109733250A (en) * | 2019-01-31 | 2019-05-10 | 中国铁路设计集团有限公司 | A kind of contact net system based on composite wrist-arm |
| CN111572413A (en) * | 2020-04-23 | 2020-08-25 | 石家庄京铁供电器材有限公司 | Tram contact wire linkage |
| CN112026593A (en) * | 2020-07-31 | 2020-12-04 | 智慧支点(北京)科技有限公司 | Contact wire module connecting device and mobile contact net system |
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| JP2002205579A (en) * | 2001-01-05 | 2002-07-23 | Kawasaki Heavy Ind Ltd | Movable overhead line feeding facilities |
| CN1704281A (en) * | 2004-05-28 | 2005-12-07 | 周建科 | Designing method for upper and lower chassis |
| CN201217397Y (en) * | 2008-06-05 | 2009-04-08 | 中铁电气化局集团宝鸡器材有限公司 | Rigidly movable contact net active cantilever arm mechanism |
| CN101698390A (en) * | 2009-10-30 | 2010-04-28 | 李霁开 | Push-off mode adjustable cantilever of overhead contact line equipment of electrified railway |
| CN201712491U (en) * | 2010-07-03 | 2011-01-19 | 衡水宝力铁路电气化器材有限公司 | Cantilever positioning device for electrified railway compensating contact network |
| CN205706237U (en) * | 2016-04-06 | 2016-11-23 | 中铁电气化局集团宝鸡器材有限公司 | Tramcar contact line slidingtype spring suspension device |
| EP3121058A1 (en) * | 2015-07-20 | 2017-01-25 | Ing. Karl u. Albert Kruch GmbH & Co. KG | Assembly for holding the overhead wire for electrical railway vehicles comprising the supporting cable and contact wire |
| CN206615102U (en) * | 2017-04-01 | 2017-11-07 | 中铁第一勘察设计院集团有限公司 | A kind of flexible mobile network sidesway integral-rotation bracket device |
-
2017
- 2017-04-01 CN CN201710214839.9A patent/CN106926753A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002205579A (en) * | 2001-01-05 | 2002-07-23 | Kawasaki Heavy Ind Ltd | Movable overhead line feeding facilities |
| CN1704281A (en) * | 2004-05-28 | 2005-12-07 | 周建科 | Designing method for upper and lower chassis |
| CN201217397Y (en) * | 2008-06-05 | 2009-04-08 | 中铁电气化局集团宝鸡器材有限公司 | Rigidly movable contact net active cantilever arm mechanism |
| CN101698390A (en) * | 2009-10-30 | 2010-04-28 | 李霁开 | Push-off mode adjustable cantilever of overhead contact line equipment of electrified railway |
| CN201712491U (en) * | 2010-07-03 | 2011-01-19 | 衡水宝力铁路电气化器材有限公司 | Cantilever positioning device for electrified railway compensating contact network |
| EP3121058A1 (en) * | 2015-07-20 | 2017-01-25 | Ing. Karl u. Albert Kruch GmbH & Co. KG | Assembly for holding the overhead wire for electrical railway vehicles comprising the supporting cable and contact wire |
| CN205706237U (en) * | 2016-04-06 | 2016-11-23 | 中铁电气化局集团宝鸡器材有限公司 | Tramcar contact line slidingtype spring suspension device |
| CN206615102U (en) * | 2017-04-01 | 2017-11-07 | 中铁第一勘察设计院集团有限公司 | A kind of flexible mobile network sidesway integral-rotation bracket device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246993A (en) * | 2017-07-31 | 2017-10-13 | 株洲时代新材料科技股份有限公司 | A kind of mechanical property test device |
| CN107380206A (en) * | 2017-08-25 | 2017-11-24 | 中国铁道科学研究院东郊分院 | The performs device and its system of contact net geometric parameter adjust automatically |
| CN107380206B (en) * | 2017-08-25 | 2023-11-03 | 中国铁道科学研究院东郊分院 | Execution device and system for automatically adjusting geometrical parameters of overhead contact system |
| CN108297739A (en) * | 2018-03-16 | 2018-07-20 | 中铁第勘察设计院集团有限公司 | T-type, which rotates integrally, can adjust cantilever base |
| CN108357394A (en) * | 2018-03-16 | 2018-08-03 | 中铁第勘察设计院集团有限公司 | Bracket is adjustable fastening shaft device |
| CN109733250A (en) * | 2019-01-31 | 2019-05-10 | 中国铁路设计集团有限公司 | A kind of contact net system based on composite wrist-arm |
| CN111572413A (en) * | 2020-04-23 | 2020-08-25 | 石家庄京铁供电器材有限公司 | Tram contact wire linkage |
| CN111572413B (en) * | 2020-04-23 | 2023-07-18 | 石家庄京铁供电器材有限公司 | Tram contact wire linkage |
| CN112026593A (en) * | 2020-07-31 | 2020-12-04 | 智慧支点(北京)科技有限公司 | Contact wire module connecting device and mobile contact net system |
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Application publication date: 20170707 |
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| RJ01 | Rejection of invention patent application after publication |