CN100429494C - Special force sensor for DSA series pantograph - Google Patents
Special force sensor for DSA series pantograph Download PDFInfo
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- CN100429494C CN100429494C CNB2004100468183A CN200410046818A CN100429494C CN 100429494 C CN100429494 C CN 100429494C CN B2004100468183 A CNB2004100468183 A CN B2004100468183A CN 200410046818 A CN200410046818 A CN 200410046818A CN 100429494 C CN100429494 C CN 100429494C
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- pantograph
- dsa
- dsa series
- series
- special
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- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The present invention relates to a special force sensor for a DSA series pantograph, which is used for testing the contact pressure between a pantograph and a contact net and is composed of spring rods (1), (2), (6) and a tension-compression annular sensor and is combination of the spring rods in a bracket of the DSA series pantograph and the tension-compression annular force sensor. The sensor and a force directing device have the characteristics of small size and light weight. The present invention can not cause adverse effect on the primary characteristic of the pantograph, and has high sensitivity and accuracy.
Description
Technical field
The present invention relates to a kind of force transducer, especially relate to critical component---the force transducer of detection of dynamic between a kind of electric railway pantograph and the contact net.
Background technology
Incessantly pantograph and contact net being detected is important leverage to the electric railway safe operation.The important parameter that bow net detects is dynamic contact pressure and the dynamic stagger between the bow net.
And force transducer and force guide device are the critical components of pressure detection of dynamic between electric railway pantograph and the contact net.
At present, the DSA series pantograph that China uses mainly contains two kinds: the design of a kind of STAMP of being company, the DSA series pantograph that Datong Locomotive Works produces; Another is the DX200 type pantograph that Luoyang City prosperous enlightening railway electrification equipment company limited copies DSA series pantograph to produce.
At present, only two " the Contact Line Detection cars " with bow net contact pressure measuring ability of China are imports, and price is all more than 1,000 ten thousand yuans.Though these two inspection vehicles have international most advanced level, and two defectives are arranged: the one, inspection vehicle can only move once by some months, can not detect contact net at any time; The 2nd, the pantograph of using on employed pantograph and the actual locomotive on the operation conditions of inspection vehicle and the inspection vehicle is all inequality.Different pantographs need be used different force transducers.
The force transducer of existing German bow net checkout equipment, volume is bigger, and heavy, can only be installed on the aluminum frame of pantograph, needs the pantograph aluminum frame is cut off, and connects sensor then.Described aluminum frame is the weak element of pantograph, very easily damages.Improved like this pantograph can only be specially as the detection under the non-operation state, and the bow net contact pressure that should not be used for runing detects.
Summary of the invention
The object of the present invention is to provide a kind of volume little, in light weight, highly versatile, measuring accuracy height, the special-purpose force transducer of the DSA that can detect at any time series pantograph to the dynamic contact pressure between the operating bow net.
The objective of the invention is to be achieved through the following technical solutions, it comprises dop, connecting rod I, elastic body and the connecting rod II that links to each other in turn, described elastic body is provided with the sensitive element that elastomeric distortion is changed into electric signal, elastomeric both sides are posted sealing sheet respectively, wherein a side is provided with the lead fairlead, and on the sealing sheet of opposite side, paste binding post, described sensitive element and binding post are formed the Hui Sidun bridge.
Described sensitive element can be strainometer.
In order to improve antijamming capability, described sealing sheet preferably adopts sheet metal to make.Should adopt the good fluid sealant of water resistance bonding between diaphragm seal and the elastic body.
A pair of steel wire rack is arranged at the upper frame top of existing DSA series pantograph, and steel wire rack links to each other by extension spring with bow, and extension spring is made of spring and spring lever.
The characteristics of this structure are, have both kept the kinetic characteristic and the connected mode of original spring lever in the pantograph support, can not cause adverse effect to the primary characteristic of pantograph, again can be with very high precision measure power.
The present invention has little, the lightweight characteristics of volume, and this force transducer is installed in the spring lever of DSA series pantograph support, and weight only increases by 10 grams, can not have any impact to the operation characteristic of pantograph.
The present invention is insensitive to transverse force.Laterally sidewindering during locomotive operation can make pantograph roll, and the force transducer in the test macro is produced very big transverse force.The present invention's force transducer itself does not possess eliminates the transverse force interference capability, but owing to when installing, can be combined as a whole with stand spring, thereby eliminate the interference of pantograph pan transverse force fully.
The present invention has good precision.Accurate in order to guarantee test result, the precision of sensor must guarantee in 0.5%F.S.The back system accuracy is installed to be guaranteed in 1%F.S.Force transducer provided by the invention can reach this index fully.
Description of drawings
Fig. 1 is the front view of one embodiment of the invention;
The left view that Fig. 2 is embodiment illustrated in fig. 1;
The vertical view that Fig. 3 is embodiment illustrated in fig. 1.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
With reference to accompanying drawing, present embodiment comprises dop 1, connecting rod I2, elastic body 3 and the connecting rod II6 that links to each other successively, be connected with sensitive element strainometer 4 on the described elastic body 3, the both sides of elastic body 3 are respectively equipped with diaphragm seal 8 and diaphragm seal 9, one side is provided with lead fairlead 5, be pasted with binding post 7 on the sealing sheet of opposite side, sensitive element strainometer 4 is formed the Hui Sidun bridge with binding post 7.
Signal wire is connected with binding post 7.
Claims (3)
1, the special-purpose force transducer of a kind of DSA series pantograph, it is characterized in that, comprise the dop, connecting rod I, elastic body and the connecting rod II that link to each other in turn, described elastic body is provided with the sensitive element that elastomeric distortion is changed into electric signal, elastomeric both sides are posted sealing sheet respectively, wherein a side is provided with the lead fairlead, and pastes binding post on the sealing sheet of opposite side, and described sensitive element and binding post are formed the Hui Sidun bridge.
2, the special-purpose force transducer of DSA series pantograph according to claim 1 is characterized in that described sensitive element is a strainometer.
3, the special-purpose force transducer of DSA series pantograph according to claim 1 and 2 is characterized in that described sealing sheet adopts sheet metal to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100468183A CN100429494C (en) | 2004-10-10 | 2004-10-10 | Special force sensor for DSA series pantograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100468183A CN100429494C (en) | 2004-10-10 | 2004-10-10 | Special force sensor for DSA series pantograph |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1758040A CN1758040A (en) | 2006-04-12 |
| CN100429494C true CN100429494C (en) | 2008-10-29 |
Family
ID=36703525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100468183A Expired - Fee Related CN100429494C (en) | 2004-10-10 | 2004-10-10 | Special force sensor for DSA series pantograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100429494C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102602296A (en) * | 2012-04-11 | 2012-07-25 | 长春轨道客车股份有限公司 | Pantograph contact pressure adjusting method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5115405A (en) * | 1989-04-28 | 1992-05-19 | Faiveley Transport | Device for adjusting the bearing force of a pantograph on a catenary wire and process relating thereto |
| JP2001018692A (en) * | 1999-07-06 | 2001-01-23 | Railway Technical Res Inst | Method and device for measuring contact force of pantograph |
| CN1313209A (en) * | 2001-04-25 | 2001-09-19 | 西南交通大学 | Integrated automatic detection unit for roof states of electric locomotive |
| JP2002328063A (en) * | 2001-05-01 | 2002-11-15 | East Japan Railway Co | Apparatus for measuring contact force of pantograph |
| CN2601883Y (en) * | 2002-10-31 | 2004-02-04 | 中南大学 | Force sensor for electrified railway pantograph-catenary dynamic detection and 8K-imitated pantograph head |
-
2004
- 2004-10-10 CN CNB2004100468183A patent/CN100429494C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5115405A (en) * | 1989-04-28 | 1992-05-19 | Faiveley Transport | Device for adjusting the bearing force of a pantograph on a catenary wire and process relating thereto |
| JP2001018692A (en) * | 1999-07-06 | 2001-01-23 | Railway Technical Res Inst | Method and device for measuring contact force of pantograph |
| CN1313209A (en) * | 2001-04-25 | 2001-09-19 | 西南交通大学 | Integrated automatic detection unit for roof states of electric locomotive |
| JP2002328063A (en) * | 2001-05-01 | 2002-11-15 | East Japan Railway Co | Apparatus for measuring contact force of pantograph |
| CN2601883Y (en) * | 2002-10-31 | 2004-02-04 | 中南大学 | Force sensor for electrified railway pantograph-catenary dynamic detection and 8K-imitated pantograph head |
Non-Patent Citations (2)
| Title |
|---|
| 接触力测量装置. 宋毓芬.铁道机车车辆，第3期. 1997 |
| 接触力测量装置. 宋毓芬. 铁道机车车辆，第3期. 1997 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1758040A (en) | 2006-04-12 |
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Granted publication date: 20081029 Termination date: 20141010 |
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