CN108608892A - A kind of fulcrum bar component of electrification railway contact net - Google Patents
A kind of fulcrum bar component of electrification railway contact net Download PDFInfo
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- CN108608892A CN108608892A CN201810526887.6A CN201810526887A CN108608892A CN 108608892 A CN108608892 A CN 108608892A CN 201810526887 A CN201810526887 A CN 201810526887A CN 108608892 A CN108608892 A CN 108608892A
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- damper
- wind
- current
- coil
- wind speed
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention belongs to electric railway fields, more particularly to a kind of fulcrum bar component of electrification railway contact net, it includes cantilever structure, regulating current device, elastic damper, damping case, power supply, double control switch, air velocity transducer and controller, when air velocity transducer detects that wind speed is higher than predetermined wind value, the coil turn damped in case is switched to minimum turn number value by double control switch, and control regulating current device and the electric current for being passed through coil is adjusted, it is influenced to make damper have corresponding damping force to cope with wind shake；Change the response time of damper according to wind speed size, reduce due to wind speed is too fast and the phenomenon that damper reaction leads to deviation of contact wire not in time, to achieve the effect that make pantograph stable by stream；In addition, changing size of current according to wind speed, influenced with generating corresponding damping force to cope with wind shake, keeps the wind resistance dynamic of contact net adjustable, improve the wind loading rating of contact net.
Description
Technical field
The invention belongs to electric railway field, more particularly to a kind of fulcrum bar component of electrification railway contact net.
Background technology
The vortex Wind in wind area, the wind effect in air port and tunnel face can make contact net that complicated vibration and wind occur
Partially, bow net operation state quality is influenced, bow net contact safety is threatened.The high wind of China Railway First Investigation Designing Institute Group Co., Ltd
Electrification contact network and its parameter determination method under environment use structure height to be not more than 50m for 1100mm, span, hold
Power rope tensility match suitable, overall steel cantilever structure, transition mast with contact line tension and turnout mast be double bracket columns, contact line and
The simple catenary suspension that carrier cable branch column casts anchor.(referenced patent document CN102756671B).The patent of Tongji University
A kind of high-speed railway touching net antidirection finding elastic damper fulcrum bar component of product, the cantilever structure include Horizontal Cantilever, inclined cantilever, determine
Position pipe, locator and positioning pipe support, fulcrum bar component include damping generation unit and shop bolt unit, damp generation unit
One end is fixedly connected with positioning pipe, and the other end is connect by shop bolt unit with locator, damps generation unit diagonally cloth
It sets, and is connect respectively with locator, positioning pipe, collectively form support construction (referenced patent document CN104890534B).
Invention content
The present invention provides a kind of fulcrum bar components of electrification railway contact net, can cope with weather ring complicated and changeable
Border has the adjustable wind resistance of dynamic, to improve the wind loading rating of contact net, reduce electric railway windburn loss.
Including：
Horizontal bracket, is installed on column, is fixedly connected with inclined cantilever；
Arc registration arm is fixedly connected on horizontal bracket, for fixing contact line；
Rod insulator is separately fixed on horizontal bracket and inclined cantilever, for increasing creepage distance；
First damper is installed on for flexible type damper between arc registration arm and inclined cantilever, one end and oblique wrist
Arm is fixedly connected, and the other end is hinged by damper rod and arc registration arm, absorbs contact line due to wind as auxiliary damper
The vibrational energy of generation；
Further include：
Case is damped, one end is fixedly connected with column, and the other end is hinged by piston rod and arc registration arm；
Coil, is set in damping case, generates magnetic field after powered up to change liquid viscosity；
Double control switch is set in damping case, and two contacts of switch connect with the intermediate terminal of coil and end terminals respectively
It connects, changes the number of turns of coil by connecting different contacts, so that the response time of damper changes；
Second damper is magnetorheological damper, is set in damping case, is generated because of wind for absorbing contact line
Vibrational energy；
Regulating current device is set on column, for adjusting the size of current by coil；
Air velocity transducer is installed on column, for detecting wind speed size；
Controller is arranged on column, and signal is connected to the second damper, double control switch, regulating current device, wind
Fast sensor；Controller is configured as：
When air velocity transducer detects that wind speed size is less than the first air speed value, double control switch connects the first contact, by line
Circle the number of turns is adjusted to first the number of turns value, and it was the first response time to make the response time of the second damper；Meanwhile controller is according to wind speed
Size controls regulating current device by current regulation to the first current value, changes liquid by being passed through current induced magnetic field to coil
Body viscosity, to change the damping force of damper；
When air velocity transducer detects that wind speed size is higher than the first air speed value, double control switch connects the second contact, by line
Circle the number of turns is adjusted to second the number of turns value to reduce coil inductance, reduces the induced current of current regulation process coil generation to defeated
Entering the obstruction of electric current influences, to which the response time of the second damper was reduced to for the second response time from the first response time,
Make contact net in the case where wind shake is affected, the electric current of regulating current device output still is able to that damper is allowed to generate phase rapidly
The damping force of size is answered to cope with the variation of wind speed, avoids causing pantograph generation to take stream not since damping force is adjusted not in time
Stable phenomenon；Meanwhile electric current is increased to the second current value by regulating current device so that damper generates the damping of bigger
Power；
First second response times of response time ＞；
First the number of turns value ＞ second the number of turns values；
First the second current values of current value ＜.
The beneficial effects of the invention are as follows：Change the response time of damper according to wind speed size, reduces since wind speed is too fast
And damper reacts the phenomenon that leading to deviation of contact wire not in time, to achieve the effect that make pantograph stable by stream；In addition, root
Change size of current according to wind speed, influenced with generating corresponding damping force to cope with wind shake, keeps the wind resistance dynamic of contact net adjustable,
It improves the wind loading rating of contact net, reduce electric railway windburn loss.
Description of the drawings
Fig. 1 shows the fulcrum bar component schematic diagram of electrification railway contact net；
Fig. 2 shows magnetic rheological liquid damper internal structure schematic diagrams.
Specific implementation mode
With reference to the accompanying drawings, the function that the structure of this system is described in detail and is realized.
As shown in Figs. 1-2,
Horizontal bracket 1 is installed on column 2, is fixedly connected with inclined cantilever 4；
Arc registration arm 3 is fixedly connected on horizontal bracket, for fixing contact line；
Rod insulator 5 is separately fixed on horizontal bracket 1 and inclined cantilever 4, for increasing creepage distance；
Case 7 is damped, one end is fixedly connected with column 2, and the other end is hinged by piston rod 6 and arc registration arm 3；
First damper 8, is installed between arc registration arm 3 and inclined cantilever 4, and one end is fixedly connected with inclined cantilever 4, separately
One end is hinged by damper rod 9 and arc registration arm 3, absorbs the vibrational energy that contact line is generated by wind as auxiliary damper
Amount；
Coil 10, is set in damping case 7, generates magnetic field after powered up to change liquid viscosity；
Double control switch 11 is set in damping case 7, two contacts of switch respectively with the intermediate terminal of coil and end terminals
Connection changes the number of turns of coil, so that the response time of damper changes by connecting different contacts；
Second damper 12 is set in damping case 7, the vibrational energy generated by wind for absorbing contact line；
Regulating current device 13 is set on column 2, for adjusting the size of current by coil 10；
Air velocity transducer 14 is installed on column 2, for detecting wind speed size；
Controller 15 is arranged on column 2, and signal is connected to the second damper 12, double control switch 11, current regulation
Device 13, air velocity transducer 14；
Controller 15 is configured as：
When air velocity transducer 14 detects that wind speed size is less than the first air speed value, double control switch 11 connects the first contact,
Coil turn is adjusted to first the number of turns value, it was the first response time to make the response time of the second damper 12；Meanwhile controller 15
Regulating current device 13 is controlled by current regulation to the first current value according to wind speed size, and magnetic is generated by being passed through electric current to coil
Change liquid viscosity, to changing the damping force of damper；
When air velocity transducer 14 detects that wind speed size is higher than the first air speed value, double control switch 11 connects the second contact,
Coil turn is adjusted to second the number of turns value to reduce coil inductance, reduces the induced current that current regulation process coil generates
The obstruction of input current is influenced, to which the response time of the second damper 12 is reduced to the second response from the first response time
Time makes contact net in the case where wind shake is affected, and the electric current that regulating current device 13 exports still is able to allow rapidly damping
Device generates damping force of corresponding size to cope with the variation of wind speed, avoids causing pantograph to be produced not in time due to damping force adjusting
Raw take flows unstable phenomenon；Meanwhile electric current is increased to the second current value by regulating current device 13 so that damper generates more
Big damping force.
One skilled in the art would recognize that without departing substantially from the spirit and scope of the invention as describing in general manner,
Various variations and/or modification can be carried out to invention shown in each specific embodiment.Therefore, in terms of all
For, embodiment here is considered as illustrative and and non-limiting.Equally, the present invention includes any feature
Combination, the combination of any feature especially in Patent right requirement, even if the combination of this feature or feature is not in patent
It is explicitely stated in claim or each embodiment here.
Claims (2)
1. a kind of fulcrum bar component of electrification railway contact net, which is characterized in that including electromagnetic damper, have dynamic adjustable
Damping force, so that the wind resistance of fulcrum bar component can adjust with the wind.
2. a kind of fulcrum bar component of electrification railway contact net, including：
Horizontal bracket, is installed on column, is fixedly connected with inclined cantilever；
Arc registration arm is fixedly connected on horizontal bracket, for fixing contact line；
Rod insulator is separately fixed on horizontal bracket and inclined cantilever, for increasing creepage distance；
First damper is flexible type damper, is installed between arc registration arm and inclined cantilever that one end is solid with inclined cantilever
Fixed connection, the other end is hinged by damper rod and arc registration arm, and absorb contact line as auxiliary damper generates because of wind
Vibrational energy；
It is characterized in that,
Case is damped, one end is fixedly connected with column, and the other end is hinged by piston rod and arc registration arm；
Coil, is set in damping case, generates magnetic field after powered up to change liquid viscosity；
Double control switch is set in damping case, and two contacts of switch are connect with the intermediate terminal of coil and end terminals respectively,
Change the number of turns of coil by connecting different contacts, so that the response time of damper changes；
Second damper is magnetorheological damper, is set in damping case, is shaken for absorb that contact line generates by wind
Energy；
Regulating current device is set on column, for adjusting the size of current by coil；
Air velocity transducer is installed on column, for detecting wind speed size；
Controller is arranged on column, and signal is connected to the second damper, double control switch, regulating current device, wind speed and passes
Sensor；Controller is configured as：
When air velocity transducer detects that wind speed size is less than the first air speed value, double control switch connects the first contact, by coil turn
Number is adjusted to first the number of turns value, and it was the first response time to make the response time of the second damper；Meanwhile controller is according to wind speed size
Regulating current device is controlled by current regulation to the first current value, it is glutinous to change liquid by being passed through current induced magnetic field to coil
Degree, to change the damping force of damper；
When air velocity transducer detects that wind speed size is higher than the first air speed value, double control switch connects the second contact, by coil turn
Number is adjusted to second the number of turns value to reduce coil inductance, and it is electric to input to reduce the induced current that current regulation process coil generates
The obstruction of stream influences, and to which the response time of the second damper was reduced to for the second response time from the first response time, makes to connect
It touches net in the case where wind shake is affected, the electric current of regulating current device output still is able to allow damper generation corresponding big rapidly
Small damping force avoids causing pantograph generation to take stream unstable since damping force is adjusted not in time to cope with the variation of wind speed
The phenomenon that；Meanwhile electric current is increased to the second current value by regulating current device so that damper generates the damping force of bigger；
First second response times of response time ＞；
First the number of turns value ＞ second the number of turns values；
First the second current values of current value ＜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810526887.6A CN108608892B (en) | 2018-05-29 | 2018-05-29 | Supporting rod assembly of electrified railway contact net |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810526887.6A CN108608892B (en) | 2018-05-29 | 2018-05-29 | Supporting rod assembly of electrified railway contact net |
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| CN108608892A true CN108608892A (en) | 2018-10-02 |
| CN108608892B CN108608892B (en) | 2020-12-04 |
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| CN201810526887.6A Active CN108608892B (en) | 2018-05-29 | 2018-05-29 | Supporting rod assembly of electrified railway contact net |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108749651A (en) * | 2018-05-29 | 2018-11-06 | 贺营营 | A kind of supporting mechanism of electric contact net |
| CN108999906A (en) * | 2018-10-11 | 2018-12-14 | 北矿科技股份有限公司 | A kind of excitation unit for electromagnetic damper |
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| CN104890534A (en) * | 2015-05-06 | 2015-09-09 | 同济大学 | Supporting mechanism of negative positioning elastic damper for high-speed railway touching nets |
| KR20170076420A (en) * | 2015-12-24 | 2017-07-04 | 울산과학기술원 | Apparatus for measuring tension and controlling vibration of cable, method thereof and system |
| CN107093881A (en) * | 2017-05-02 | 2017-08-25 | 东北电力大学 | A kind of damping unit for being used to suppress electric transmission line isolator windage yaw |
| CN108674256A (en) * | 2018-05-21 | 2018-10-19 | 梁可义 | A kind of support device of power contacts net |
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2018
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Patent Citations (7)
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|---|---|---|---|---|
| JP2003080977A (en) * | 2001-09-11 | 2003-03-19 | East Japan Railway Co | Steady arm for trolley wire |
| CN201538255U (en) * | 2009-12-17 | 2010-08-04 | 衡水宝力铁路电气化器材有限公司 | Self-location wind-prevention damping elastic locator of high-speed railway electrified contact net |
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| CN108674256A (en) * | 2018-05-21 | 2018-10-19 | 梁可义 | A kind of support device of power contacts net |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108749651A (en) * | 2018-05-29 | 2018-11-06 | 贺营营 | A kind of supporting mechanism of electric contact net |
| CN108749651B (en) * | 2018-05-29 | 2020-12-04 | 湖州达立智能设备制造有限公司 | Supporting mechanism of electric contact net |
| CN108999906A (en) * | 2018-10-11 | 2018-12-14 | 北矿科技股份有限公司 | A kind of excitation unit for electromagnetic damper |
| CN108999906B (en) * | 2018-10-11 | 2024-03-26 | 北矿科技股份有限公司 | Excitation device for electromagnetic damper |
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| CN108608892B (en) | 2020-12-04 |
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Effective date of registration: 20201119 Address after: 313000 1-D, building 1, No. 656 Qixing Road, high tech Zone, Wuxing District, Huzhou City, Zhejiang Province Applicant after: Huzhou Dali Intelligent Equipment Manufacturing Co.,Ltd. Address before: 238000 7 health tower, Chaohu, Anhui Applicant before: He Yingying |
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| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A strut assembly for overhead contact system of electrified railway Effective date of registration: 20211222 Granted publication date: 20201204 Pledgee: Huzhou Wuxing Rural Commercial Bank Co.,Ltd. high tech Zone Green sub branch Pledgor: Huzhou Dali Intelligent Equipment Manufacturing Co.,Ltd. Registration number: Y2021330002600 |
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Date of cancellation: 20230912 Granted publication date: 20201204 Pledgee: Huzhou Wuxing Rural Commercial Bank Co.,Ltd. high tech Zone Green sub branch Pledgor: Huzhou Dali Intelligent Equipment Manufacturing Co.,Ltd. Registration number: Y2021330002600 |
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