CN108891305B - Intelligent support of contact net - Google Patents
Intelligent support of contact net Download PDFInfo
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- CN108891305B CN108891305B CN201810486982.8A CN201810486982A CN108891305B CN 108891305 B CN108891305 B CN 108891305B CN 201810486982 A CN201810486982 A CN 201810486982A CN 108891305 B CN108891305 B CN 108891305B
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- motor
- contact line
- plane
- cylinder
- positioning arm
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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)
- Wind Motors (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention belongs to the field of electrified railways, and particularly relates to a support of a contact network, which comprises an empty cylinder, a positioning arm, a sensor, a controller, a motor and a rotary cylinder, wherein the empty cylinder is penetrated with a contact line, the positioning arm, the sensor, the controller, the motor and the rotary cylinder are arranged in the empty cylinder, when the sensor measures real-time wind direction data, the controller controls a first motor and a second motor to operate to drive the first positioning arm and the empty cylinder to rotate, so that the contact line is positioned in a position parallel to the wind direction, the vibration of the contact line is weakened, and simultaneously controls a third motor to operate to drive the rotary cylinder to. According to the invention, the position of the contact line is changed according to the wind direction, and the length compensation is carried out on the contact line, so that the wind resistance of the contact net is dynamically adjustable, the contact net can cope with complicated and changeable climatic environments, the wind resistance of the contact net is improved, and the wind damage loss of an electrified railway is reduced.
Description
Technical Field
The invention belongs to the field of electrified railways, and particularly relates to an intelligent support of a contact network.
Background
The strong wind action of wind zone, wind gap and the vortex wind field action of tunnel portal can make the contact net take place complicated vibration and windage yaw, influence bow net operation dynamic quality, threaten bow net contact safety. The electrified contact network of the railway under the strong wind environment of the first reconnaissance and design institute group limited company of medium-speed railway and the parameter determination method thereof adopt a simple chain-shaped suspension system with the structure height of 1100mm, the span of not more than 50m, the proper matching of the tension of a catenary cable and the tension of a contact wire, the whole steel cantilever structure, a conversion column and a turnout column which are double-cantilever columns and the anchoring of the contact wire and the catenary branch column. (refer to patent document CN 102756671B). Patent product of university of the same economic, a high-speed railway contact net anti-location elastic damper supporting mechanism, this cantilever structure includes flat cantilever, oblique cantilever, the registration arm, locator and registration arm support, and supporting mechanism includes damping generation unit and dowel unit, damping generation unit one end and registration arm fixed connection, and the other end passes through the dowel unit and is connected with the locator, and damping generation unit arranges along the slant to be connected with locator, registration arm respectively, constitute bearing structure jointly (refer to patent document CN 104890534B).
Disclosure of Invention
The invention provides an intelligent support of a contact network, which can be used for dealing with complicated and changeable climatic environments and has dynamically adjustable wind resistance so as to improve the wind resistance of the contact network and reduce the wind damage loss of an electrified railway.
The method comprises the following steps:
the flat wrist arm is vertically and fixedly connected with the pillar;
one end of the first positioning arm can be rotatably embedded into the flat wrist arm;
one end of the second positioning arm is fixed on the pillar, and the other end of the second positioning arm is hinged with the tail end of the first positioning arm;
the first motor is arranged on the flat wrist arm and used for controlling the rotation of the first positioning arm;
the second motor is arranged on the first positioning arm and used for controlling the rotation of the empty cylinder;
the sensor is arranged on the strut and used for monitoring the real-time wind direction;
the hollow cylinder is m in length, internally penetrates through a contact line, is arranged at the tail end of the first positioning arm and is driven to rotate by a second motor;
the contact wire is led in from one port of the empty cylinder, wound to the central position of the rotary cylinder from one end of the rotary cylinder, fixed with the rotary cylinder at the central position, reversely wound to the other end of the rotary cylinder from the central position and led out from the other port of the empty cylinder;
the rotary drum is vertically arranged in the hollow drum, and a contact line for length compensation is wound on the surface of the rotary drum;
the third motor is arranged on the hollow cylinder and used for controlling the rotation of the rotary cylinder;
the controller is in signal connection with the sensor, the first motor, the second motor and the third motor;
the controller is configured to:
(1) establishing a space coordinate system which takes the center of the hollow cylinder as an origin, the direction of the contact line as an X axis, the direction towards the inner side of the rail as a Y axis and the vertical upward direction as a Z axis;
(2) acquiring wind direction data, establishing a three-dimensional vector of a wind direction, and projecting the three-dimensional vector to Xoy and Zox planes respectively to obtain a first plane vector and a second plane vector;
(3) calculating an included angle theta between the first plane vector and the X axis and an included angle mu between the second plane vector and the Z axis;
(4) controlling a first motor to drive a first positioning arm to rotate an empty cylinder by a first angle alpha in an Xoy plane according to theta, and enabling an included angle between a projection of a contact line between two adjacent empty cylinders on a Xoy plane and an X axis to be changed from 0 degrees to theta, namely the contact line is parallel to the first plane on a Xoy plane;
wherein,
(5) controlling a second motor to drive the hollow cylinders to rotate by a second angle beta in the Zox plane according to mu, so that the included angle between the projection of the contact line between two adjacent hollow cylinders on the Zox plane and the Z axis is changed from 90 degrees to mu, namely the contact line is parallel to the second plane on the Zox plane;
wherein,
(6) controlling a third motor to drive the rotary drum to rotate to release the contact line with the length of delta L, so that the length of the contact line between the supports is increased, and the tension of the contact line is reduced;
wherein,
L0the initial length of the contact line between the struts.
The invention has the beneficial effects that: the contact net supporting structure capable of changing the position of the contact line according to the wind direction is adopted, the contact net can be automatically kept parallel to the wind direction, the wind resistance of the contact net is enabled to be dynamically adjustable, the complex and changeable climatic environment can be coped with, the wind resistance of the contact net is improved, and the wind damage loss of the electrified railway is reduced.
Drawings
Figure 1 shows a schematic view of a support of a catenary;
FIG. 2 shows a schematic view of the drum;
FIG. 3 shows a schematic diagram of contact line adjustment;
figure 4 shows a simplified formula derivation diagram.
Detailed Description
The structure of the present system and the functions performed are described in detail below with reference to the accompanying drawings.
As shown in the figures 1-3 of the drawings,
the flat cantilever 1 is vertically and fixedly connected with the pillar;
one end of the first positioning arm 2 is rotatably embedded into the flat wrist arm 1;
one end of the second positioning arm 3 is fixed on the pillar, and the other end is hinged with the tail end of the first positioning arm 2;
the first motor 4 is arranged on the flat wrist arm 1 and used for controlling the rotation of the first positioning arm 2;
the second motor 5 is arranged on the first positioning arm 2 and used for controlling the rotation of the empty cylinder 7;
the sensor 6 is arranged on the strut and used for monitoring the real-time wind direction;
an empty cylinder 7 with the length of m and a contact line 8 penetrating inside, which is arranged at the tail end of the first positioning arm 2 and is driven to rotate by the second motor 5;
a contact wire 8 which is led in from one port of the empty cylinder 7, is wound from one end of the rotary cylinder 9 to the central position of the rotary cylinder 9, is fixed with the rotary cylinder 9 at the central position, is reversely wound from the central position to the other end of the rotary cylinder 9, and is led out from the other port of the empty cylinder 7;
the rotary drum 9 is vertically arranged in the hollow drum 7, and a contact line for length compensation is wound on the surface of the rotary drum;
the third motor 11 is arranged on the hollow cylinder 7 and used for controlling the rotation of the rotary cylinder 9;
the controller 12 is in signal connection with the sensor 6, the first motor 4, the second motor 5 and the third motor 11;
the controller 12 is configured to:
(1) establishing a space coordinate system which takes the center of the hollow cylinder 7 as an origin, the direction of the contact line is an X axis, the direction towards the inner side of the rail is a Y axis, and the vertical upward direction is a Z axis;
(2) acquiring wind direction data, establishing a three-dimensional vector of a wind direction, and projecting the three-dimensional vector to Xoy and Zox planes respectively to obtain a first plane vector and a second plane vector;
(3) calculating an included angle theta between the first plane vector and the X axis and an included angle mu between the second plane vector and the Z axis;
(4) controlling a first motor 4 to drive a first positioning arm 2 to rotate an empty cylinder 7 by a first angle alpha in the Xoy plane according to theta, so that the included angle between the projection of a contact line 8 between two adjacent empty cylinders 7 on the Xoy plane and the X axis is changed from 0 DEG to theta, namely the contact line 8 is parallel to the first plane on the Xoy plane;
wherein,
(5) controlling a second motor 5 to drive the hollow cylinders 7 to rotate by a second angle beta in the Zox plane according to mu, so that the included angle between the projection of the contact line 8 between two adjacent hollow cylinders 7 on the Zox plane and the Z axis is changed from 90 DEG to mu, namely the contact line 8 is parallel to the second plane on the Zox plane;
wherein,
(6) controlling a third motor 11 to drive the rotary drum 9 to rotate to release the contact line with the length of delta L, so that the length of the contact line between the struts is increased, and the tension of the contact line is reduced;
wherein,
L0the initial length of the contact line between the struts.
As shown in fig. 4, the first angle α calculation formula is derived as follows:
knowing that the distance between adjacent struts is d, the length of the contact line between the struts after the hollow cylinder rotates is L, the cosine law can be used to obtain:
the following steps are provided:
bringing (2) into (1) to obtain:
and finishing derivation.
It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as shown in the specific embodiments without departing from the spirit or scope of the invention as broadly described. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. Likewise, the invention encompasses any combination of features, in particular of features in the patent claims, even if this feature or this combination of features is not explicitly specified in the patent claims or in the individual embodiments herein.
Claims (1)
1. An intelligent support for a catenary, comprising:
the flat wrist arm is vertically and fixedly connected with the pillar;
one end of the first positioning arm can be rotatably embedded into the flat wrist arm;
one end of the second positioning arm is fixed on the pillar, and the other end of the second positioning arm is hinged with the tail end of the first positioning arm;
it is characterized in that the preparation method is characterized in that,
the first motor is arranged on the flat wrist arm and used for controlling the rotation of the first positioning arm;
the second motor is arranged on the first positioning arm and used for controlling the rotation of the empty cylinder;
the sensor is arranged on the strut and used for monitoring the real-time wind direction;
the hollow cylinder is m in length, internally penetrates through a contact line, is arranged at the tail end of the first positioning arm and is driven to rotate by a second motor;
the contact wire is led in from one port of the empty cylinder, wound to the central position of the rotary cylinder from one end of the rotary cylinder, fixed with the rotary cylinder at the central position, reversely wound to the other end of the rotary cylinder from the central position and led out from the other port of the empty cylinder;
the rotary drum is vertically arranged in the hollow drum, and a contact line for length compensation is wound on the surface of the rotary drum;
the third motor is arranged on the hollow cylinder and used for controlling the rotation of the rotary cylinder;
the controller is in signal connection with the sensor, the first motor, the second motor and the third motor;
the controller is configured to:
(1) establishing a space coordinate system which takes the center of the hollow cylinder as an origin, the direction of the contact line as an X axis, the direction towards the inner side of the rail as a Y axis and the vertical upward direction as a Z axis;
(2) acquiring wind direction data, establishing a three-dimensional vector of a wind direction, and projecting the three-dimensional vector to Xoy and Zox planes respectively to obtain a first plane vector and a second plane vector;
(3) calculating an included angle theta between the first plane vector and the X axis and an included angle mu between the second plane vector and the Z axis;
(4) controlling the first motor to drive the first positioning arm according to the angle θ, so that the empty cylinders rotate within the Xoy plane by the first angle α, and an included angle between a projection of a contact line between two adjacent empty cylinders on the Xoy plane and the X axis is changed from 0 ° to θ, that is, the contact line is parallel to the first plane in the Xoy plane;
wherein,
(5) controlling the second motor to drive the hollow cylinders to rotate by a second angle beta in the Zox plane according to the mu, so that the included angle between the projection of the contact line between two adjacent hollow cylinders on the Zox plane and the Z axis is changed from 90 ° to mu, namely the contact line is parallel to the second plane in the Zox plane;
wherein,
(6) controlling a third motor to drive the rotary drum to rotate to release the contact line with the length of delta L, so that the length of the contact line between the supports is increased, and the tension of the contact line is reduced;
wherein,
L0is indirect to a pillarThe initial length of the antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810486982.8A CN108891305B (en) | 2018-05-21 | 2018-05-21 | Intelligent support of contact net |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810486982.8A CN108891305B (en) | 2018-05-21 | 2018-05-21 | Intelligent support of contact net |
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| Publication Number | Publication Date |
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| CN108891305A CN108891305A (en) | 2018-11-27 |
| CN108891305B true CN108891305B (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810486982.8A Active CN108891305B (en) | 2018-05-21 | 2018-05-21 | Intelligent support of contact net |
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Citations (6)
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| CN2701688Y (en) * | 2004-04-14 | 2005-05-25 | 北京首铁科技工程公司 | Multifunctional localizer for contact system |
| WO2007020297A1 (en) * | 2005-08-19 | 2007-02-22 | Tram Power Ltd | Overhead lines for rail vehicles |
| CN201656396U (en) * | 2010-04-01 | 2010-11-24 | 扬州东方吊架有限公司 | Solar anti-icing device of overhead power transmission line |
| CN201914121U (en) * | 2010-12-30 | 2011-08-03 | 中铁三局集团电务工程有限公司 | Installation tool of contact network cantilever |
| CN206426873U (en) * | 2016-11-08 | 2017-08-22 | 中铁一局集团电务工程有限公司 | A kind of high headroom section contact net cantilever beam of urban track traffic |
| CN206781567U (en) * | 2017-04-01 | 2017-12-22 | 中铁第一勘察设计院集团有限公司 | A kind of mobile catenary power bracket mechanism |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9904422D0 (en) * | 1998-07-22 | 1999-04-21 | Saipem Spa | Improvements in and relating to underwater pipe-laying |
| CN2353618Y (en) * | 1998-10-08 | 1999-12-15 | 铁三院三电技术开发公司 | Spacing positioner for contact net of electric railway |
| CN206242955U (en) * | 2016-11-11 | 2017-06-13 | 成都国佳电气工程有限公司 | A kind of insulated compound formula contact net supports device |
-
2018
- 2018-05-21 CN CN201810486982.8A patent/CN108891305B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2701688Y (en) * | 2004-04-14 | 2005-05-25 | 北京首铁科技工程公司 | Multifunctional localizer for contact system |
| WO2007020297A1 (en) * | 2005-08-19 | 2007-02-22 | Tram Power Ltd | Overhead lines for rail vehicles |
| CN201656396U (en) * | 2010-04-01 | 2010-11-24 | 扬州东方吊架有限公司 | Solar anti-icing device of overhead power transmission line |
| CN201914121U (en) * | 2010-12-30 | 2011-08-03 | 中铁三局集团电务工程有限公司 | Installation tool of contact network cantilever |
| CN206426873U (en) * | 2016-11-08 | 2017-08-22 | 中铁一局集团电务工程有限公司 | A kind of high headroom section contact net cantilever beam of urban track traffic |
| CN206781567U (en) * | 2017-04-01 | 2017-12-22 | 中铁第一勘察设计院集团有限公司 | A kind of mobile catenary power bracket mechanism |
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| CN108891305A (en) | 2018-11-27 |
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Effective date of registration: 20210507 Address after: 31 Baoci Road, Hengfeng street, Wenling City, Taizhou City, Zhejiang Province Applicant after: Wang Meihua Address before: 230000 Building 2, Tianlong square community, Qianshan Road, Hefei City, Anhui Province Applicant before: Liang Keyi |
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