EP0633174A1 - Dispositif de frein magnétique sur rail - Google Patents

Dispositif de frein magnétique sur rail Download PDF

Info

Publication number
EP0633174A1
EP0633174A1 EP94890098A EP94890098A EP0633174A1 EP 0633174 A1 EP0633174 A1 EP 0633174A1 EP 94890098 A EP94890098 A EP 94890098A EP 94890098 A EP94890098 A EP 94890098A EP 0633174 A1 EP0633174 A1 EP 0633174A1
Authority
EP
European Patent Office
Prior art keywords
section
magnetizable
core
brake
solid
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.)
Withdrawn
Application number
EP94890098A
Other languages
German (de)
English (en)
Inventor
Günter Grondinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG Oesterreich
Original Assignee
Siemens AG Oesterreich
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG Oesterreich filed Critical Siemens AG Oesterreich
Publication of EP0633174A1 publication Critical patent/EP0633174A1/fr
Withdrawn legal-status Critical Current

Links

Images

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 invention relates to a magnetic rail brake with an excitation coil and an elongated coil core, which is made up of several sections arranged in the longitudinal direction one behind the other with a U-shaped cross section, the legs of which are provided on the track side with at least one magnetizable brake shoe, with a non-magnetizable between these brake shoes Grinding shoe is arranged.
  • a rail brake of the type mentioned above is apparent from DE-PS 620 916. It discloses an electromagnetic rail brake with blocks that can be moved individually perpendicular to the rail, the cutting planes of which run along the line of force in order to adapt the braking surface to unevenness in the rail surface.
  • the task on which this rail brake is based is to increase the frictional force acting during a braking operation by fitting the braking surface to the rail surface. Since the rail brake is composed of individual solid blocks, a high-quality soft magnetic steel must be used for its production, which is both expensive and difficult to obtain.
  • a further disadvantage of the arrangement described above is that, due to the manufacturing process, the coil core also has sectional planes in the longitudinal direction of the rail, which interrupt the flow of the line of force and therefore generally have an unfavorable effect on the magnetic properties of this arrangement.
  • rail brakes are used in which the U-shaped coil core consists of an elongated central part, on each side of which a solid leg is arranged, the two legs and the central central part being connected to one another via transverse bolts. The central middle part is enclosed by a coil, which is used to generate a magnetic flux.
  • a brake shoe is screwed onto each leg of the U-shaped core on the rail side.
  • a non-magnetizable grinding shoe is also arranged between the two brake shoes.
  • Such a magnetic rail brake is held on the rail vehicle with a suspension directly above the rail.
  • the coil is excited and it forms in the Coil core, the brake shoes and the rail form a closed magnetic circuit, the force of which pulls the rail brake against the rail and brakes the rail vehicle.
  • the excitation of the coil is switched off again and the rail brake is lifted by means of the usually springy suspension.
  • the coil core is made of a highly magnetizable steel, e.g. St 34 or CK10, manufactured to achieve small dimensions.
  • a highly magnetizable steel e.g. St 34 or CK10
  • such materials are expensive and difficult to obtain in the desired quantities.
  • At least a portion of the coil core is formed by a plurality of magnetizable sheets, which are U-shaped and are arranged one behind the other.
  • Magnetizable sheets for example transformer sheets, are readily available and have good magnetic properties, so that a magnetic rail brake according to the invention can be produced inexpensively with small dimensions. By using magnetizable sheets, better magnetic properties are achieved compared to known devices.
  • a mechanically stable embodiment of a magnetic rail brake results from the fact that the core has at least two solid sections, between which a section formed from a plurality of sheets is arranged, the brake shoes being fastened to the at least two solid sections of the coil core.
  • these solid sections preferably one each is arranged at the front and rear ends of the core and at least one between its front and rear ends, a section formed from sheet metal being arranged between each two solid sections and each solid section made of a soft magnetic material consists.
  • the U-shaped, magnetizable sheets are transformer sheets formed in one piece.
  • transformer sheets By using such one-piece transformer sheets, it is possible to produce a coil core in which the magnetic force lines are advantageously not interrupted.
  • a coil 1 with a U-shaped core 2 is shown.
  • the coil is enclosed by a coil housing 3, preferably the coil is cast in it.
  • the core 3 has three solid partial sections with a U-shaped cross section, namely a front solid end section 4, a rear solid end section 5 and a solid central section 6.
  • These partial sections 4, 5 and 6 are preferably made of an inexpensive soft magnetic material , such as St 37 steel.
  • U-shaped magnetizable sheets 7 are arranged one behind the other between these massive sections 4, 5 6.
  • Such sheets are, for example, transformer sheets, which are readily available, inexpensive and have good magnetic properties.
  • the sheets 7 have essentially the same cross-section as the solid sections 4, 5 and 6, whereby the outer edges of the U-profile can be beveled in an embodiment not shown here in order to achieve better field line guidance there.
  • the core 2 is provided in the region of each leg with two longitudinal bores 8a, b, 9a, b arranged one above the other for a respective clamping bolt 10a, b, 11a, b, with these clamping bolts providing a rigid and form-fitting longitudinal connection of the solid sections 4, 5 and 6 and the intermediate transformer sheets 7 is produced.
  • a magnetizable brake shoe 12a, b is arranged on each leg of the core 2. These brake shoes 12a, b are screwed to the solid sections 4, 5 6 of the core 2 and transmit the magnetic flux of the core 2 to the rail during a braking operation. Furthermore, between the two brake shoes 12a, b there is a non-magnetic grinding shoe 13 which is connected to the brake shoes via cross bolts. The brake shoes 12a, b and the grinding shoe 13, which are to be regarded as wearing parts, are placed on the rail during a braking operation and are therefore slightly beveled at the front and rear ends.
  • a suspension device 14 or 15 is provided, by means of which the magnetic rail brake is fastened to the rail vehicle and is lowered onto the rail before each braking operation or is then raised again.
  • the suspension device 14, 15 consists of springs, against the force of which the rail brake is pulled downward onto the rail when its coil is excited.
  • a power transmission element 16, 17 is provided at each of the end sections 4, 5 of the core 2, which transmits the horizontal force that occurs during a braking operation to the rail vehicle and is only indicated here.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
EP94890098A 1993-07-05 1994-06-09 Dispositif de frein magnétique sur rail Withdrawn EP0633174A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1317/93 1993-07-05
AT131793A AT401762B (de) 1993-07-05 1993-07-05 Magnetschienenbremse

Publications (1)

Publication Number Publication Date
EP0633174A1 true EP0633174A1 (fr) 1995-01-11

Family

ID=3511277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94890098A Withdrawn EP0633174A1 (fr) 1993-07-05 1994-06-09 Dispositif de frein magnétique sur rail

Country Status (2)

Country Link
EP (1) EP0633174A1 (fr)
AT (1) AT401762B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19619409A1 (de) * 1996-05-14 1997-11-27 Ruefas Pagid Ag Magnetschienenbremse
CN102941859A (zh) * 2012-11-14 2013-02-27 江苏大学 一种垂滑式磁轨制动器增力装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE906103C (de) * 1951-04-29 1954-03-11 Robert Hanning Mit Wechselstrom betriebene elektromagnetische Schienenbremse
EP0042787A1 (fr) * 1980-06-20 1981-12-30 S.A. Wabco-Standard N.V. Patin électromagnétique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE620916C (de) * 1934-11-12 1935-10-30 Knorr Bremse Akt Ges Elektromagnetische Schienenbremse
BE477948A (fr) * 1946-12-12

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE906103C (de) * 1951-04-29 1954-03-11 Robert Hanning Mit Wechselstrom betriebene elektromagnetische Schienenbremse
EP0042787A1 (fr) * 1980-06-20 1981-12-30 S.A. Wabco-Standard N.V. Patin électromagnétique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19619409A1 (de) * 1996-05-14 1997-11-27 Ruefas Pagid Ag Magnetschienenbremse
DE19619409C2 (de) * 1996-05-14 2001-02-15 Ruefas Pagid Ag Magnetschienenbremse
CN102941859A (zh) * 2012-11-14 2013-02-27 江苏大学 一种垂滑式磁轨制动器增力装置
CN102941859B (zh) * 2012-11-14 2015-06-10 江苏大学 一种垂滑式磁轨制动器增力装置

Also Published As

Publication number Publication date
AT401762B (de) 1996-11-25
ATA131793A (de) 1996-04-15

Similar Documents

Publication Publication Date Title
EP1737718B1 (fr) Dispositif de frein electromagnetique sur rails
WO2013178350A2 (fr) Dispositif de frein electromagnetique sur rails
DE2744554C2 (de) Magnetanordnung für eine Hammerbankanordnung eines Anschlagdruckers
DE3114041C2 (fr)
CH676895A5 (fr)
DE874516C (de) Elektromagnet mit zwei Spulen
AT401762B (de) Magnetschienenbremse
EP0594870A1 (fr) Moteur de commande
CH645188A5 (de) Elektrische waage.
DE3110798C2 (de) Druckkopf
EP0073002B1 (fr) Déclencheur électromagnétique
EP0001802A1 (fr) Relais électromagnétique monostable à armature rotative
EP0575935B1 (fr) Dispositif de frein magnétique sur rail
DE3338602C2 (fr)
DE577924C (de) Elektromagneitsches Relais, bei dem die Endlage des ohne Zuhilfenahme einer Hebelwirkung auf Kontakte einwirkenden Ankers durch Dreipunktauflage bestimmt ist
DE3428763C2 (de) Hochleistungszündspule
DE620916C (de) Elektromagnetische Schienenbremse
EP0019118B1 (fr) Dispositif pour brasser des fontes métalliques dans des installations de coulée continue
DE267556C (fr)
DE2150244B2 (de) Magnetanordnung fuer ein magnetisches trag- oder fuehrungssystem
DE3133620C2 (de) Sperrmagnetauslöser
DE2155580C3 (de) Bremsmagnet für mit Wirbelstrombremsen ausgerüstete Schienenfahrzeuge
DE887540C (de) Elektromagnetisches Relais mit permanentem Hilfsmagneten
DE2746601A1 (de) Verfahren und anordnung zum verbinden einer drucknadel mit einem huelsenfoermigen magnetanker
EP0097199A1 (fr) Dispositif de commutation électrique

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE IT LI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19950712