CN87209827U - Magnetoelectric sensor for railways - Google Patents
Magnetoelectric sensor for railways Download PDFInfo
- Publication number
- CN87209827U CN87209827U CN 87209827 CN87209827U CN87209827U CN 87209827 U CN87209827 U CN 87209827U CN 87209827 CN87209827 CN 87209827 CN 87209827 U CN87209827 U CN 87209827U CN 87209827 U CN87209827 U CN 87209827U
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- magneto
- electric rail
- permanent magnet
- cylindrical
- rail sensor
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Abstract
The utility model relates to a magnetoelectric type track sensor which is used as an automatic control device for railway signals and special lines of factories and mines, and is particularly suitable for the information control of hump marshalling stations, highway crossing signals, and the axial temperature detection of infrared rays. The magnetoelectric type track sensor adopts a self-closing type magnetic circuit structure with adjustable working gaps with small magnetic leakage and high magnetic energy utilizing rate. The utility model has the characteristics of strong anti-interference ability, good operation stability under the low temperature, small volume of the permanent magnet, etc., and the wheel rims are not easily damaged when in the overrun time. The utility model is suitable for the use in non electric sections, electric sections, and sections which are not suitable for installing track circuits.
Description
A kind of magneto-electric rail sensor that is used for railway signal automatic control device and in-dustrial line automatic control device is specially adapted to the information Control that hump marshalling station, grade crossing signal and infrared ray are surveyed axle temperature.
The magneto-electric rail sensor, it is the car that takes this opportunity, vehicle wheel rim is by the working sensor air gap, magnetic resistance is reduced, magnetic flow increases suddenly, produce the electric signal of certain frequency in coil, the reflection train running information offers control convenience, to realize automatic guidance, disclose a magneto-electric rail sensor (being pedal) in China's utility model patent (86202117), it and rail are formed magnetic circuit, and leakage field is big, the magnetic energy utilization rate is low, poor anti jamming capability, low-temperature properties instability, rolling stock speed job insecurity below 5 kilometers/hour the time, easily damaged by pressure, adopt bigger permanent magnet to produce than large-signal by the wagon loaded with out-of-gouge goods wheel.
The utility model provides a kind of leakage field little, magnetic energy utilization rate height, antijamming capability is strong, and the low-temperature working stability is good, just bigger signal can be produced with less permanent magnet, can and the magneto-electric rail sensor that track circuit section uses should not be adorned at non-electrified sections, electrified sections.
The utility model is to adopt less cylindrical permanent magnet, be placed on the cylindrical shape yoke bottom centre position, the bottom for disc top be cylindrical (be truncated cone for disc top perhaps with the bottom, the bottom is that ladder is cylindrical for disc top) iron core place on the permanent magnet, adopting diameter around the exterior coil of iron core is the enamel wire of 0.1～0.35mm, general coiling 4000～12000 circles, the coil gabarit is cylindrical, the inboard also is cylindrical (also truncated cone or ladder is cylindrical), lead-out wires of coil is connected with the socket that is fixed on the yoke bottom, magnetic circuit working clearance adjustable ring is connected with threaded iron core, adjustable bolt is installed is fixed on the yoke bottom, socket is put by yoke bottom centre, the angle of installing between adjustable bolt is 90 °, yoke also is a shell, the magneto-electric rail sensor that adopts said structure to form, but self-closing work magnetic circuit with adjusting work gap, antijamming capability and magnetic energy utilization rate have been improved, the permanent magnet volume is reduced, because the permanent magnet that has adopted rare earth permanent-magnetic material or made through the strontium ferrite permanent magnetic material of burin-in process, improve low-temperature working stability, can be superimposed upon non-electrification, on the various track circuits of electrified sections.And can use at the section of unsuitable mounted tracks circuit.This magneto-electric rail sensor is placed on the rubber-like adjusting pad, and adjusting pad is placed on the jig, fixes by adjustable bolt is installed.
The utility model is at non-electrified sections, when electrified sections reaches the section use of unsuitable mounted tracks circuit at the rail disturbing current below 500 amperes, only needing that a magneto-electric rail sensor is placed in the rail inboard gets final product, at disturbing current is that electrified sections more than 500 amperes is when using, on rail bilateral symmetry position, respectively lay a magneto-electric rail sensor, its connection for when two magneto-electric rail sensor polarity identical when identical with coil winding-direction, magneto-electric rail sensor head end pig-tail wire tie mutually with another magneto-electric rail sensor tail end pig-tail wire and draw (or when two magneto-electric rail sensor polarity identical when opposite with coil winding-direction, the top of two coil is tied mutually with the top pig-tail wire, tail end with draw after the tail end pig-tail wire is tied mutually.Two magneto-electric rail sensor polarity are opposite when identical with coil winding-direction, and the top of two coil is tied mutually with top, tail end with draw after the tail end pig-tail wire is tied mutually.Two magneto-electric rail sensor polarity are opposite when opposite with coil winding-direction, the coil head end of a magneto-electric rail sensor with draw after the coil tail end of another magnetoelectric sensor is tied mutually).
The sensor of this magneto-electric track is through at non-electrified sections, and unsuitable mounted tracks circuit section, electrified sections evidence: low-temperature stability is good, antijamming capability is strong, magnetic energy utilization rate height, can produce bigger working signal with less permanent magnet, compare with existing magneto-electric rail sensor (being pedal), the permanent magnet volume reduces, working signal increases, when new wheel passes through this magneto-electric rail sensor, under the worst condition of working gas gap, output voltage peak one peak value is not less than 10 volts.As meet under the situation that the rail surface abrasion are transfinited or the flange tread abrasion are transfinited, when wheel passes through this magneto-electric rail sensor,, be not damaged normal operation because of being provided with adjusting pad.Locomotive speed can normal operation below 5 kilometers/hour the time.
The additional microelectronics self-checking system of the sensor of this magneto-electric track constitutes the self-closing detecting device, power consumption is few, opened up approach for independent current sources solution non-transformer area realization railway equipment automatic guidances such as solar cell, zinc and air cell are set, it can make complicated controlled condition simplify.
Below by the further casehistory of accompanying drawing
Fig. 1, this magneto-electric rail sensor and rail mounting structure (being used for non-electrified sections, the electrified sections of rail disturbing current below 500 amperes and unsuitable mounted tracks circuit section)
The structure of Fig. 2, this magneto-electric rail sensor
Fig. 3, cylinder stepped appearance iron core and loop construction thereof
Fig. 4, truncated cone-shaped iron core and loop construction thereof
Fig. 5, this magneto-electric rail sensor and rail mounting structure (being used for electrified sections)
Fig. 6, the tie lines method of two sensors when this magneto-electric rail sensor is used for electrified sections
Among the figure: the 1st, magnetic circuit working clearance adjustable ring, the 2nd, iron core, the 3rd, coil, the 4th, yoke (shell), the 5th, permanent magnet, the 6th, the epoxy resin weighting material, the 7th, adjustable bolt is installed, the 8th, socket, the 9th, jig, the 10th, adjusting pad, the 11st, magneto-electric rail sensor, the 12nd, wheel rim, the 13rd, rail.
Less cylinder type neodymium iron boron permanent magnet (5), be placed on cylindrical shape yoke (4) bottom centre position of magnetic conduction, the bottom is that columniform conducting magnet core (2) places on the permanent magnet (5) for disc top, the enamel wire that with line directly is 0.1～0.35mm is around 9500 circles, the outside and the inboard top that is sleeved on permanent magnet (5) for columniform coil (3), coil (3) pig-tail wire is connected with the socket (8) that is fixed on yoke (4) bottom, the magnetic circuit working clearance adjustable ring made from permeability magnetic material (1) is connected with threaded iron core (2) top, adjustable bolt (7) is installed is fixed on yoke (4) bottom, make yoke (4) bottom centre put to the angle between socket (8) and adjustable bolt (7) be 90 °, yoke (4) also is a shell, with epoxy resin weighting material (6) packing space position.The jig (9) that circular adjusting pad (10) that this magneto-electric rail sensor (1), elastomeric material are made and cast steel are made is connected and fixed by adjustable bolt (7) is installed.Its working process at first is to be fixed under the working clearance condition that rail is inboard and the track formation is exceeded by locomotive, vehicle wheel rim height at the magneto-electric rail sensor, as locomotive, when vehicle wheel rim passes through magneto-electric rail sensor working gas gap, the magnetic group reduces, the work magnetic flow of loop chain magneto-electric rail sensor is increased suddenly, sensor signal induced electricity, realization detects the function of train running information.
The utility model is all suitable in non-electrification, electrified sections utilization, to having rail return current more than 500 amperes at electrified sections and having section that the spuious strong-electromagnetic field of homophase disturbs when using, establish the two sensors combined method in the rail symmetric position, suppress electromagnetic field intensity and disturb.
The combination of two sensors is when changing a sensor output intent, no matter the direction of cutting magnetic line how, all obtains different output wave shapes.With Fig. 6 and Fig. 7 two sensors mouth 15 and 16 knots mutually, 14 and 17 tie mutually and draw respectively.Appropriate in two cell winding parameters, technology coupling, under the good condition of symmetry, the homophase strong-electromagnetic field to be disturbed, its output is 0, only could export useful signal at the differential information waveform that has wheel rim effect and no wheel rim effect to cause.This differential output intent, having electrochemical strong jamming section experiment, respond well.Also can realize multiple combined method, strong-electromagnetic field is realized suppressing effectively.
Claims (6)
1, a kind of magneto-electric rail sensor that is used for railway signal automatic guidance and in-dustrial line automatic control device, be specially adapted to hump marshalling station, grade crossing signal and infrared ray are surveyed the information Control of axle temperature, it is by permanent magnet, coil, pig-tail wire, shell, epoxy resin stuff is formed, it is characterized in that but magnetic structure is the self-closing work magnetic circuit of adjusting work air gap, adopt less cylindrical permanent magnet, be placed on the cylindrical shape yoke bottom centre position, the bottom is a disc, top be cylindrical (be truncated cone-shaped for disc top perhaps with the bottom, the bottom is that ladder is cylindrical for disc top) iron core place on the permanent magnet, mounting coil is on iron core, magnetic circuit working clearance adjustable ring places the iron core top, lead-out wires of coil is connected with the socket that is fixed on the yoke bottom, adjustable bolt is installed is fixed on the yoke bottom, yoke also is a shell, the magneto-electric rail sensor that its space segment is filled with epoxy resin, it is placed on the rubber-like adjusting pad, adjusting pad is placed on the jig, fixes by adjustable bolt is installed.
2,, it is characterized in that permanent magnet is that rare earth permanent-magnetic material or the strontium ferrite permanent magnetic material that passes through burin-in process are made according to the magneto-electric rail sensor of claim 1.
3, according to claim 1,2 magneto-electric rail sensor, it is characterized in that permanent magnet is that Nd-Fe-Bo permanent magnet material is made.
4, according to the magneto-electric rail sensor of claim 1, it is characterized in that the coil outside also is cylindrical (perhaps be truncated cone-shaped, ladder is cylindrical) for cylindrical, inboard, the enamel wire line directly is 0.1～0.35mm, generally around 4000～12000 circles.
5,, it is characterized in that adjusting pad made by elastomeric material according to the magneto-electric rail sensor of claim 1.
6,, it is characterized in that socket is put by yoke bottom centre and be 90 ° to the angle of installing between adjustable bolt according to the magneto-electric rail sensor of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87209827 CN87209827U (en) | 1987-07-06 | 1987-07-06 | Magnetoelectric sensor for railways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87209827 CN87209827U (en) | 1987-07-06 | 1987-07-06 | Magnetoelectric sensor for railways |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87209827U true CN87209827U (en) | 1988-08-03 |
Family
ID=4824853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87209827 Withdrawn CN87209827U (en) | 1987-07-06 | 1987-07-06 | Magnetoelectric sensor for railways |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87209827U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972886A (en) * | 2010-04-02 | 2011-02-16 | 无锡华联科技集团有限公司 | Walking track mounting structure for gantry digital control cutter |
| EP2305533A3 (en) * | 2004-07-16 | 2012-04-18 | Lynxrail Corporation | Apparatus for detecting hunting and angle of attack of a rail vehicle wheelset |
| CN102840901A (en) * | 2012-09-25 | 2012-12-26 | 何志明 | Microcomputer weight measurement device for rail vehicle |
| CN107561333A (en) * | 2016-06-30 | 2018-01-09 | 株洲中车时代电气股份有限公司 | A kind of track disturbs current measurement system |
-
1987
- 1987-07-06 CN CN 87209827 patent/CN87209827U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2305533A3 (en) * | 2004-07-16 | 2012-04-18 | Lynxrail Corporation | Apparatus for detecting hunting and angle of attack of a rail vehicle wheelset |
| CN101972886A (en) * | 2010-04-02 | 2011-02-16 | 无锡华联科技集团有限公司 | Walking track mounting structure for gantry digital control cutter |
| CN102840901A (en) * | 2012-09-25 | 2012-12-26 | 何志明 | Microcomputer weight measurement device for rail vehicle |
| CN102840901B (en) * | 2012-09-25 | 2014-12-17 | 何志明 | Microcomputer weight measurement device for rail vehicle |
| CN107561333A (en) * | 2016-06-30 | 2018-01-09 | 株洲中车时代电气股份有限公司 | A kind of track disturbs current measurement system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |