EP0575935B1 - Magnetschienenbremse - Google Patents
Magnetschienenbremse Download PDFInfo
- Publication number
- EP0575935B1 EP0575935B1 EP93109865A EP93109865A EP0575935B1 EP 0575935 B1 EP0575935 B1 EP 0575935B1 EP 93109865 A EP93109865 A EP 93109865A EP 93109865 A EP93109865 A EP 93109865A EP 0575935 B1 EP0575935 B1 EP 0575935B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- magnetic
- rail brake
- magnetic rail
- coil
- brake according
- 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.)
- Expired - Lifetime
Links
- 238000004804 winding Methods 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 claims 1
- 210000002414 leg Anatomy 0.000 description 24
- 239000000853 adhesive Substances 0.000 description 11
- 230000001070 adhesive effect Effects 0.000 description 11
- 230000005284 excitation Effects 0.000 description 10
- 238000005192 partition Methods 0.000 description 7
- 230000004907 flux Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H7/00—Brakes with braking members co-operating with the track
- B61H7/02—Scotch blocks, skids, or like track-engaging shoes
- B61H7/04—Scotch blocks, skids, or like track-engaging shoes attached to railway vehicles
- B61H7/06—Skids
- B61H7/08—Skids electromagnetically operated
Definitions
- the present invention relates to a magnetic rail brake according to the preamble of claim 1.
- a generic magnetic rail brake is from DE-OS 27 20 815 Knorr-Bremse GmbH, Kunststoff, known.
- This magnetic rail brake exists essentially two curved, metallic legs that are U-shaped are connected by means of a rigidly connected web part.
- the pole shoes which represent the end of the legs, each have at their ends two contact surfaces running parallel to the rail, which when the Magnetic rail brakes have a certain distance from the rail.
- the Legs themselves are curved, so that the pole shoes with their inner surfaces in lower part are closer than in the upper part of the legs. Through this Curvatures in the legs form a cavity between them, which leads to Recording the coil carrier is used.
- the main disadvantage of this known magnetic rail brake are its perceived geometric dimensions, the total length, i.e. Iron core plus bobbin is about 220 mm in height and 140 mm in width. These dimensions are perceived by the end customers as too large, so that its Installation options are limited.
- the total weight is proportional designed high, because for a certain nominal adhesive force (kN), e.g. 85 kN a Nominal current of approximately 29 amps is required to get the appropriate field strength achieve this required nominal adhesive force either by changing the to magnetizing core or by changing the flow of the excitation coils can be achieved.
- kN nominal adhesive force
- a training according to the features of the claims enables such a compact design of the magnetic rail brake that the entire height of the contact surface of the pole shoes on the rail up to the upper edge of the coil body is not larger than 160 mm, the clear dimensions width x height of the Spool-receiving space in the coil body essentially not 60x30 mm exceed.
- the height of the metallic, magnetic legs about 130 mm, where this measure is not significantly exceeded.
- the magnetic rail brake should be noted that when the Excitation coil as a high-performance coil whose excitation current is approx. 40 amperes can be increased, which in about a 50% higher rated current in Comparison to the conventional magnetic rail brakes means. Furthermore, by choosing suitable insulating materials, the filling factor of the magnetic coil is extremely large can be selected, creating the geometric dimensions of the magnetic rail brake be influenced favorably. It is advisable not to use the pole shoe width larger than 72 mm, because this width is roughly the width of the rail corresponds.
- Fig.1 the bobbin case is in a perspective view shown.
- the bobbin case 1 is used to hold the to achieve of the necessary electromagnetic flux required Windings 6.
- the oval or can be rectangular are evenly spaced Partitions 10 distributed and on the bobbin case 1 in their positions fixed.
- the magnetic force flow absorbing Pole shoe 3 inserted into the central opening 9, with its Legs overlaps the lower half of the bobbin case.
- the two legs 3 formed as separate parts Pole shoes are secured by screws 12 which secure the web part 2 penetrate, so firmly and permanently connected to each other that the simply available joint even after long periods of operation no disadvantageous increase in magnetic resistance is.
- the thickness of the partitions 10 is in terms of the size of the forces to be absorbed approx. 8 mm, their distance from the center line to The center line is approx. 100 mm each.
- An exemplary Formation of the pole shoes is with reference to Figures 2a and 2b described in more detail below.
- Fig.2a is a link of the bobbin case 1 in its front view with the bobbin case and the turns 6 therein shown.
- the metallic core of the coil 6 to be magnetized consists in principle of two legs 3, the U-shaped one Web 2 are rigidly connected and are shaped so that the The ends of the legs are within a few mm of one another with their inner surfaces come.
- the distance between the lower parts 13 of the legs 3 is approx. 12 mm and should not be far for physical reasons be undercut.
- the total width of both leg ends 13 plus the space of approximately 12 mm is 72 mm in the present Embodiment, which in some ways is an optimal measure represents.
- the bobbin 1 or bobbin case serves the Turns of the excitation coil in a mechanically stable border record and also against environmental influences such as moisture protect.
- an end plate 8 is used, which in close Contact with the turns on the last layer of the excitation coil 6 is placed and welded to the sides with the coil carrier 1 becomes. This creates a large amount of heat, which may damage the insulation of the windings.
- metallic become in the upper corners of the solenoid Angle plates 7 placed on the windings at a suitable point, see above that point heat occurs relatively evenly on a Large number of turns is transmitted, so that not the entire occurring amount of heat must be derived from a point.
- the Filling factor of the coil 6 By consistently using modern insulation materials, the Filling factor of the coil 6 compared to the previous embodiment be significantly increased. Through this measure, the Dimensions of the bobbin case or bobbin 1 considerable be reduced.
- the free end of the leg 3 is opposite his approach on the web part 2 offset inwards, so that it Center line a distance of approx. 6 mm and up to opposite leg has a distance of 10 mm.
- the Cross section of the leg is substantially rectangular and has a width of about 35 mm at the height of the magnetic coil. At this The cross-sectional area is largest at the point and tapers off down to the end of pole shoes.
- pole shoes 3 and Links according to the invention in the coil box 1 is particularly good for the manufacture of the pole pieces 3 or at least their lower ones Wear sections suitable that the to the surfaces 11 subsequent vertical area of the legs grasp and in generally consist of steel.
- Wear sections suitable that the to the surfaces 11 subsequent vertical area of the legs grasp and in generally consist of steel.
- the pole pieces Steel can cause the contact length of the pole pieces to weld to lead. To avoid these welds it can be useful be on the extension of the thighs near her rail Area in the direction of the rail axis.
- leg sections can also be asymmetrical be trained.
- the lower one, adjoining the surfaces 11 Section of the two combined into a U-shaped structure Leg 3 is skimmed laterally by different dimensions, but with a mutual distance of about 12 mm remains.
- the bobbin case is laterally offset over the rail.
- Figure 2 is a partial sectional drawing along the in Fig.1 Section line A-B shown. It can be seen from this that the Foot 13 of the leg 3 has a length of approximately 90 mm.
- Figure 3 is a graphical representation in which the relationship between adhesive force and flooding of the iron core on the one hand, or the relationship between electrical power and flow on the other hand shown for the optimized magnetic rail brakes are.
- the electrical power (Pe) is in (kW) is shown as a function of the flow (kA), which is about 45 Ampere nominal current is about 1.45 kW.
- the dash-dotted curve (Pe) represents the electrical power. It shows a in the lower area flatter rise than in the upper range. That depends directly on the characteristic of the magnetization of the core together, which at low currents through the coil 6 relatively stronger is magnetized as in the upper saturation range.
- the solid curve (F H ) represents the adhesive force 15 of the weight-optimized magnet Nb.Gl.
- the solid curve (F H ) represents the adhesive force 15 of the weight-optimized magnet Nb.Gl.
- the optimized according to the invention stands out Magnetic rail brake by a relatively small weight, one low height and economically justifiable manufacturing and Material costs, with an adhesive force of 85 kN at a electrical output of 1.45 kW is guaranteed.
- the magnetic rail brake consists essentially of one Bobbin and several links, which are separated by partitions (10) are separated from each other, the links consisting of two magnetic Pole shoes (3) exist and rigidly with one another with a web part (2) are connected.
- the magnetic rail brake stands out in particular due to their low overall height and their relatively small size Weight off.
- the nominal current is around 40 amperes a nominal power of about 1.45 kW.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Description
- Fig.1
- eine perspektivische Ansicht des Spulenkastens mit eingebauten Trennwänden (10) und einem montierten Polschuhpaar (3);
- Fig.2a
- eine Vorderansicht des erfindungsgemäßen Polschuhpaars (3) mit der eingebauten im Schnitt dargestellten Erregerspule (6);
- Fig.2b
- eine Schnittzeichnung entlang der Schnittlinie A-B in der Fig.2a;
- Fig.3
- eine graphische Darstellung, die den Zusammenhang zwischen Haftkraft und der Durchflutung einerseits und der elektrischen Leistung und der Durchflutung andererseits für verschiedene vergleichbare Zwischenglieder der Magnetschienenbremse darstellt.
- 1
- Spulenträgerkasten
- 2
- Steg
- 3
- Polschuh-Schenkel
- 4
- Hohlraum
- 5
- 6
- Windungswicklung
- 7
- Winkelblech
- 8
- Abdeckblech
- 9
- Mittelöffnung
- 10
- Trennwände
- 11
- Auflagefläche
- 12
- Schrauben
- 13
- Polschuhend-Teile
- 14
- elektrische Leistung
- 15
- Haftkraft
Claims (10)
- Magnetschienenbremse mit im Querschnitt U-förmigen, symmetrisch oder unsymmetrisch ausgebildeten Polschuhen (3), deren geschwungene, metallische und magnetische Schenkel in der Mitte einen Hohlraum (4) bilden, in den ein passender Spulenkörper einer Spule (6) mit Windungen eingepasst wird, der das Stegteil (2) der Polschuhe (3) umgibt, dadurch gekennzeichnet, daß an den beiden oberen Ecken der Spule (6) über die Windungen ein metallisches Winkelstück (7) gebracht wird, das punktuelle Wärme beim Einschweißen eines Abschlußbleches (8) gleichmäßig verteilt.
- Magnetschienenbremse nach Anspruch 1, dadurch gekennzeichnet, daß das metallische Winkelstück (7) aus gut wärmeleitendem Material wie Kupfer (Cu) besteht.
- Magnetschienenbremse nach Anspruch 1, dadurch gekennzeichnet, daß die Isolierung der Windungen der Spule (6) extrem dünn ist, so daß der Füllfaktor groß ist.
- Magnetschienenbremse nach Anspruch 1, dadurch gekennzeichnet, daß die Polschuhbreite nicht größer als 72 mm und die Polschuhhöhe zwischen 10 und 20 mm liegt.
- Magnetschienenbremse nach Anspruch 1, dadurch gekennzeichnet, daß der Polschuhabstand in Schienen-Querrichtung nicht größer als 12 mm ist.
- Magnetschienenbremse nach einen der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß die Magnetspule (6) eine Hochleistungsspule ist, mit extrem günstigen Füllfaktor.
- Magnetschienenbremse nach Anspruch 6, dadurch gekennzeichnet, daß die Betriebsspannung der Elektromagnete U = 110 Volt beträgt und zwei Magnetspulen jeweils in Reihe geschaltet sind.
- Magnetschienenbremse nach Anspruch 1, dadurch gekennzeichnet, daß die Haftkraft ca. 85 kN beträgt.
- Magnetschienenbremse nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß die Polschuhe (3) im Bereich unterhalb des Steges (2) nach innen abgestuft ausgebildet sind und die Polschuhe (3) im Bereich des Spulenkörpers (1) eine Stärke quer zur Schienenachse von ca. 35 mm aufweisen.
- Magnetschienenbremse nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß die Polschuhe (3) in ihrem unteren Bereich beiderseits in Richtung der Schienenachse eine Länge von ca. 20 mm, ausgehend von der unteren Auflagefläche (11) bis zur Krümmung der Außenfläche der Polschuhe (3) aufweisen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9208380U DE9208380U1 (de) | 1992-06-23 | 1992-06-23 | Magnetschienenbremse |
DE9208380U | 1992-06-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0575935A1 EP0575935A1 (de) | 1993-12-29 |
EP0575935B1 true EP0575935B1 (de) | 1998-02-18 |
Family
ID=6880829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93109865A Expired - Lifetime EP0575935B1 (de) | 1992-06-23 | 1993-06-21 | Magnetschienenbremse |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0575935B1 (de) |
JP (1) | JPH0678517A (de) |
AT (1) | ATE163282T1 (de) |
DE (2) | DE9208380U1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1022885C2 (nl) | 2003-03-10 | 2004-09-13 | Walker Europ Holding B V | Elektrisch bedienbare magnetische railreminrichting, alsmede langs een of meer rails beweegbare inrichting voorzien van een railreminrichting. |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004018008B3 (de) * | 2004-04-14 | 2005-12-22 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Magnetschienenbremsvorrichtung mit flach bauendem Bremsmagneten |
CN102991528A (zh) * | 2012-10-31 | 2013-03-27 | 镇江电磁设备厂有限责任公司 | 一种磁轨制动电磁铁 |
DE102017006732A1 (de) * | 2017-07-17 | 2019-01-17 | Knorr-Bremse Gesellschaft Mit Beschränkter Haftung | Magnetschienenbremsvorrichtung eines Schienenfahrzeugs mit vergrößertem Wickelraum |
DE102017006736B4 (de) | 2017-07-17 | 2024-10-02 | Knorr-Bremse Gesellschaft Mit Beschränkter Haftung | Gliedermagnetschienenbremsvorrichtung eines Schienenfahrzeugs mit elektrischer Anschlusseinrichtung an den Endgliedern |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE662235C (de) * | 1934-03-02 | 1938-07-08 | Aeg | In einem Metallgehaeuse eingeschlossene, mit Isolierung umgebene Spule fuer Schienenbremsmagnete |
JPS5288291A (en) * | 1976-01-19 | 1977-07-23 | Hitachi Ltd | Process and apparatus for regeneration of activated carbon |
DE2720815A1 (de) * | 1977-05-09 | 1978-11-23 | Knorr Bremse Gmbh | Magnetschienenbremse |
DE2752016C2 (de) * | 1977-11-22 | 1982-04-01 | Knorr-Bremse GmbH, 8000 München | Erregerspule für Schienenbremsmagnete |
-
1992
- 1992-06-23 DE DE9208380U patent/DE9208380U1/de not_active Expired - Lifetime
-
1993
- 1993-06-21 EP EP93109865A patent/EP0575935B1/de not_active Expired - Lifetime
- 1993-06-21 AT AT93109865T patent/ATE163282T1/de not_active IP Right Cessation
- 1993-06-21 DE DE59308153T patent/DE59308153D1/de not_active Expired - Fee Related
- 1993-06-23 JP JP5152108A patent/JPH0678517A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1022885C2 (nl) | 2003-03-10 | 2004-09-13 | Walker Europ Holding B V | Elektrisch bedienbare magnetische railreminrichting, alsmede langs een of meer rails beweegbare inrichting voorzien van een railreminrichting. |
Also Published As
Publication number | Publication date |
---|---|
JPH0678517A (ja) | 1994-03-18 |
DE9208380U1 (de) | 1992-08-13 |
ATE163282T1 (de) | 1998-03-15 |
EP0575935A1 (de) | 1993-12-29 |
DE59308153D1 (de) | 1998-03-26 |
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