EP0299318B1 - Undercarriage for railway vehicles with magnetic track brake or eddy current brake - Google Patents

Undercarriage for railway vehicles with magnetic track brake or eddy current brake Download PDF

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Publication number
EP0299318B1
EP0299318B1 EP88110636A EP88110636A EP0299318B1 EP 0299318 B1 EP0299318 B1 EP 0299318B1 EP 88110636 A EP88110636 A EP 88110636A EP 88110636 A EP88110636 A EP 88110636A EP 0299318 B1 EP0299318 B1 EP 0299318B1
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EP
European Patent Office
Prior art keywords
brake
rail
stops
eddy current
drive device
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
Application number
EP88110636A
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German (de)
French (fr)
Other versions
EP0299318A2 (en
EP0299318A3 (en
Inventor
Otto Braun
Rolf Dr.-Ing. Schraut
Egbert Sonder
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.)
Duewag AG
Original Assignee
Duewag AG
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Filing date
Publication date
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Application filed by Duewag AG filed Critical Duewag AG
Priority to AT88110636T priority Critical patent/ATE82207T1/en
Publication of EP0299318A2 publication Critical patent/EP0299318A2/en
Publication of EP0299318A3 publication Critical patent/EP0299318A3/en
Application granted granted Critical
Publication of EP0299318B1 publication Critical patent/EP0299318B1/en
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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
    • B61H7/086—Suspensions therefor

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
  • Braking Systems And Boosters (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

In an undercarriage for railway vehicles, the brake body (3) of a magnetic rail brake or of an eddy-current brake is held by means of a drive device (4) so as to be capable of being lowered or raised between an upper position of rest and a lower operative position and supported in both positions by stops (6 and 1e, respectively). In order to keep the constructional outlay as small as possible and to achieve a moment-free force flow, the drive device (4) is secured to a carrier (1) of the undercarriage frame which does not carry out any resilient movements with respect to the rail (7) so that there is a spacing between carrier (1) and rail (7) which is to this extent constant. In addition, the aforesaid carrier (1) has the stops (1e) which support the brake body (3) in its operative position and are provided in order to avoid moments in the direction of action of the forces occurring. <IMAGE>

Description

Die Erfindung betrifft ein Fahrwerk für Schienenfahrzeuge mit einer Magnetschienenbremse oder einer Wirbelstrombremse, deren Bremskörper mittels einer Antriebsvorrichtung zwischen einer oberen Ruhestellung und einer unteren Wirkstellung senk- bzw. hebbar gehalten und in beiden Stellungen über Anschläge zumindest in Längsrichtung abgestützt ist, wobei die Antriebsvorrichtung und die Anschläge an einem Längsträger des Fahrwerkrahmens gehalten sind, der keine federnden Bewegungen in bezug auf die Schiene ausführt.The invention relates to a chassis for rail vehicles with a magnetic rail brake or an eddy current brake, the brake body of which can be lowered or raised by means of a drive device between an upper rest position and a lower active position and is supported in both positions via stops at least in the longitudinal direction, the drive device and the Stops are held on a side member of the chassis frame, which does not perform any resilient movements with respect to the rail.

Durch die US-A-2 103 354 oder die CH-A- 178 733 ist eine Art der Aufhängung von Magnetschienenbremsen bekannt, die üblicherweise als "Tiefanlenkung" bezeichnet wird. Bei einer solchen Anlenkung besteht zwischen dem über Schraubenfedern an einem Fahrwerk gehaltenen Bremskörper und der Schienenoberkante ein Abstand von nur wenigen Millimetern. Dieser geringe Abstand wird durch Einschalten des elektrischen Stromes für die Schienenbremse gegen die Kraft der Schraubenfedern überbrückt, so daß der Bremskörper auf der Schiene liegt. Nach Abschalten des Stromes ziehen die Federn den Bremskörper in seine Ruhestellung zurück.From US-A-2 103 354 or CH-A-178 733 a type of suspension of magnetic rail brakes is known, which is usually referred to as "deep linkage". With such a linkage, there is a distance of only a few millimeters between the brake body, which is held on a running gear via coil springs, and the upper edge of the rail. This small distance is bridged by switching on the electrical current for the rail brake against the force of the coil springs, so that the brake body lies on the rail. After switching off the current, the springs pull the brake body back into its rest position.

Bei einer anderen, auch "Hochanlenkung" genannten Art der Aufhängung von Schienenbremsen - siehe CH-A- 474 392 (dazu parallel DE-B-1 780 100) und die daraus entnehmbaren Merkmale der eingangs zitierten Gattung - besteht zwischen dem Bremskörper und der Schienenoberkante ein größerer Abstand, beispielsweise 85 mm. Da ein derartiger Abstand den Federweg der bei der "Tiefanlenkung" vorgesehenen Schraubenfedern übersteigt, werden für das Senken und Heben des Bremskörpers Antriebseinrichtungen verwendet. Diese Vorrichtungen sind gemäß CH-A- 474 392 bzw. DE-B-1 780 100 mit einem Längsträger des Fahrwerkrahmens verbunden, der keine federnden Bewegungen in bezug auf die Schiene ausführt. Dieser Längsträger weist außerdem Anschläge auf, die den Bremskörper in seiner Ruhestellung und in seiner Wirkstellung zumindest in Längsrichtung des Fahrwerks abstützen. Bei der bekannten Bauweise erhöht sich die ungefederte Masse des Fahrwerkrahmens nachteilig um das beträchtliche Gewicht der Schienenbremsen.For another type of suspension of rail brakes, also called "high linkage" - see CH-A-474 392 (see parallel DE-B-1 780 100) and the features of the type cited at the beginning - there is a greater distance, for example 85 mm, between the brake body and the top edge of the rail. Since such a distance exceeds the spring travel of the helical springs provided in the "deep linkage", drive devices are used for lowering and raising the brake body. According to CH-A-474 392 and DE-B-1 780 100, these devices are connected to a longitudinal member of the undercarriage frame which does not perform any resilient movements with respect to the rail. This side member also has stops which support the brake body in its rest position and in its operative position at least in the longitudinal direction of the chassis. In the known design, the unsprung mass of the chassis frame increases disadvantageously by the considerable weight of the rail brakes.

Zum Stand der Technik (DE-A-2 415 858) gehört ferner eine Anschlageinrichtung, über die ein in "Hochanlenkung" angeordneter Bremskörper in seiner Ruhestellung horizontal fixierbar ist. Diese Anschlageinrichtung besteht im wesentlichen aus einer am Bremskörper angebrachten Kegelfläche, die mit einer am Fahrwerk gehaltenen Hohlkegelfläche zusammenwirkt.The prior art (DE-A-2 415 858) also includes a stop device by means of which a brake body arranged in a "high linkage" can be horizontally fixed in its rest position. This stop device essentially consists of a conical surface attached to the brake body, which cooperates with a hollow conical surface held on the chassis.

Der Erfindung liegt die Aufgabe zugrunde, ein Fahrwerk der gattungsgemäßen Art so auszugestalten, daß die ungefederte Masse des Fahrwerkrahmens bei zuverlässiger Abstützung und Führung des Bremskörpers möglichst gering ist.The invention has for its object to design a chassis of the generic type so that the unsprung mass of the chassis frame with reliable support and guidance of the brake body is as low as possible.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Bremskörper in seiner Ruhestellung durch eine an sich bekannte Anschlageinrichtung in Horizontalebene fixiert und über mindestens zwei, zwischen der Anschlageinrichtung und dem Längsträger angeordnete Federelemente vertikal abgefedert ist.This object is achieved in that the brake body is fixed in its rest position by a known stop device in the horizontal plane and is vertically cushioned by at least two spring elements arranged between the stop device and the longitudinal member.

Die mit der Erfindung erzielbaren Vorteile ergeben sich aus Aufgabe und Lösung unmittelbar. Die in den Unteransprüchen genannten Ausgestaltungen der Erfindung werden im anschließenden Abschnitt der Beschreibung erläutert.The advantages that can be achieved with the invention result directly from the problem and the solution. The refinements of the invention mentioned in the subclaims are explained in the subsequent section of the description.

Ausführungsbeispiele der Erfindung sind in der Zeichnung schematisch dargestellt und werden im folgenden näher beschrieben. Es zeigen

Fig. 1 A
ein Fahrwerk für Schienenfahrzeuge in Draufsicht, ausgerüstet mit einer Magnetschienenbremse,
Fig. 1 B
ein der Fig. 1 A ähnliches Fahrwerk in Draufsicht, jedoch mit einer Wirbelstrombremse,
Fig. 2 A
die Seitenansicht des Fahrwerks nach Fig. 1 A,
Fig. 2 B
die Seitenansicht des Fahrwerks nach Fig. 1 B,
Fig. 3
einen in Zeichnungsebene der Fig. 2 B rechten Teilbereich im vergrößerten Maßstab,
Fig. 4
den Schnitt nach der Linie IV - IV in Fig. 3,
Fig. 5
die Einzelheit Z in Fig. 3 im Längsschnitt.
Embodiments of the invention are shown schematically in the drawing and are described in more detail below. Show it
Fig. 1A
a chassis for rail vehicles in plan view, equipped with a magnetic rail brake,
Fig. 1B
a similar to Fig. 1 A chassis in plan view, but with an eddy current brake,
Fig. 2A
the side view of the chassis of FIG. 1A,
Fig. 2B
the side view of the chassis of Fig. 1 B,
Fig. 3
a partial area on the right in the drawing plane of FIG. 2B on an enlarged scale,
Fig. 4
the section along the line IV - IV in Fig. 3,
Fig. 5
the detail Z in Fig. 3 in longitudinal section.

Das gezeigte Fahrwerk hat einen Rahmen, der aus zwei Längsträgern 1 und daran angebrachten Auslegern 1a besteht. Die Ausleger 1a sind jeweils mit dem gegenüberliegenden Längsträger 1 gelenkig verbunden. An den gabelförmig ausgebildeten Enden 1b der Längsträger 1 befinden sich Lagerungen 1c für Wellenstücke 2a von Rädern 2. Eine bei Fahrwerken oder Drehgestellen an sich übliche Abfederung des Rahmens auf den Radlagerungen ist hier nicht vorhanden und wegen der relativ geringen Masse des Rahmens auch nicht erforderlich.The chassis shown has a frame which consists of two side members 1 and brackets 1a attached to them. The brackets 1a are each articulated to the opposite side member 1. At the fork-shaped ends 1b of the side members 1 there are bearings 1c for shaft pieces 2a of wheels 2. A suspension of the frame on the wheel bearings, which is inherently common in running gear or bogies, is not present here and is not necessary because of the relatively small mass of the frame.

Unterhalb jedes Längsträgers 1 ist ein Bremskörper 3 einer Magnetschienenbremse oder einer Wirbelstrombremse angeordnet. Der Bremskörper 3 ist mittels einer Antriebsvorrichtung 4 - beispielsweise durch zwei druckluftbetätigte und federvorgespannte Zylinder - zwischen einer oberen Ruhestellung und einer unteren Wirkstellung verstellbar. Gemäß Fig. 1 A und Fig. 2 A sind die an Konsolen 1d des Längsträgers 1 gehaltenen Zylinder der Antriebsvorrichtung 4 diagonal gegenüberliegend angeordnet. Bei dem Ausführungsbeispiel nach Fig. 1 B und 2 B befinden sich die Zylinder der Antriebsvorrichtung 4 in Längsachse des Längsträgers 1.A brake body 3 of a magnetic rail brake or an eddy current brake is arranged below each side member 1. The brake body 3 can be adjusted between an upper rest position and a lower operative position by means of a drive device 4 - for example by means of two compressed air-actuated and spring-loaded cylinders. According to FIG. 1A and FIG. 2A, the cylinders of the drive device 4 held on brackets 1d of the longitudinal member 1 are diagonally opposite arranged. In the exemplary embodiment according to FIGS. 1 B and 2 B, the cylinders of the drive device 4 are located in the longitudinal axis of the side member 1.

Jeder Bremskörper 3 ist in seiner oberen Ruhestellung durch die Federvorspannkraft der Antriebsvorrichtung 4 gehalten, durch zwei (Fig. 1 A und 2 A) oder vier (Fig. 1 B und 2 B) Federelemente 5 (siehe Fig. 5, obere Bildhälfte) gegenüber dem jeweiligen Längsträger 1 vertikal abgefedert und durch eine Anschlageinrichtung 6 (siehe Fig. 5, untere Bildhälfte) in der Horizontalebene fixiert.Each brake body 3 is held in its upper rest position by the spring biasing force of the drive device 4, by two (FIGS. 1A and 2 A) or four (FIGS. 1 B and 2 B) spring elements 5 (see FIG. 5, upper half of the figure) opposite the respective longitudinal member 1 vertically cushioned and fixed in the horizontal plane by a stop device 6 (see FIG. 5, lower half of the figure).

Die Federelemente 5 sind über Schrauben 5a mit den Längsträgern 1 und mit einem Oberteil 6a der entsprechend DE-A-2 415 858 gestalteten Anschlageinrichtung 6 verbunden. Dieses Oberteil 6a wirkt mit einem am Bremskörper 3 befestigten Zentrierkegel 6b zusammen, der im übrigen mittels einer Exzenterbuchse 6c paßgenau eingestellt werden kann.The spring elements 5 are connected by screws 5a to the side members 1 and to an upper part 6a of the stop device 6 designed according to DE-A-2 415 858. This upper part 6a interacts with a centering cone 6b fastened to the brake body 3, which can be adjusted precisely by means of an eccentric bushing 6c.

In der unteren Wirkstellung liegt der Bremskörper 3 der Magnetschienenbremse direkt auf der Schiene 7, wogegen zwischen dem Bremskörper 3 der Wirbelstrombremse und der Schiene 7 ein definierter Luftspalt bestehen muß. Um die beim Bremsen auftretenden Reaktionskräfte momentenfrei aufzunehmen, weist der Längsträger 1 in Wirkrichtung dieser Kräfte angeordnete Anschläge 1e auf. Diese Anschläge 1e können bei der Magnetschienenbremse als einfache Längsanschläge (siehe Fig. 2 A) ausgebildet sein.In the lower active position, the brake body 3 of the magnetic rail brake lies directly on the rail 7, whereas a defined air gap must exist between the brake body 3 of the eddy current brake and the rail 7. In order to absorb the reaction forces occurring during braking without torque, the side member 1 has stops 1e arranged in the direction of action of these forces. These stops 1e can be designed as simple longitudinal stops (see FIG. 2A) in the magnetic rail brake.

Im Fall der Wirbelstrombremse sind die Anschläge 1e (siehe Fig. 3 und 4) neben ihrer Funktion in Längsrichtung auch vertikal nach unten hin sowie in Querrichtung wirksam. Dazu hat der jeweilige Anschlag 1e eine Aufnahme 1f für einen Nocken 3b an einem Kragarm 3a des Bremskörpers 3. Wie aus Fig. 4 ersichtlich, ist die Aufnahme 1f in ihrer Höhe einstellbar (Langloch für Klemmschrauben, gezahnte Kontaktflächen) mit dem Anschlag 1e verbunden. Dadurch kann der gewollte Luftspalt zwischen Bremskörper 3 und Schiene 7 auf einfache Weise bei der Erstmontage eingestellt bzw. bei Verschleiß an den Rädern 2 nachgestellt werden. Die Fixierung des abgesenkten Bremskörpers 3 in Querrichtung erfolgt über die Seitenflächen der Aufnahme 1f und des Nockens 3b. Diese Seitenflächen sind prismatisch gestaltet, um beim Absenken des Bremskörpers 3 ein leichtes Einfädeln des Nockens 3b in die Aufnahme 1f zu ermöglichen.In the case of the eddy current brake, the stops 1e (see FIGS. 3 and 4) are effective in addition to their function in the longitudinal direction, vertically downward and in the transverse direction. For this purpose, the respective stop 1e has a receptacle 1f for a cam 3b on a cantilever arm 3a of the brake body 3. As can be seen from FIG. 4, the height of the receptacle 1f can be adjusted (elongated hole for clamping screws, toothed contact surfaces). connected to the stop 1e. As a result, the desired air gap between the brake body 3 and the rail 7 can be set in a simple manner during the initial assembly or readjusted when the wheels 2 are worn. The lowered brake body 3 is fixed in the transverse direction via the side surfaces of the receptacle 1f and the cam 3b. These side surfaces are designed prismatic to enable the cam 3b to be easily threaded into the receptacle 1f when the brake body 3 is lowered.

Claims (4)

  1. A bogie for rail vehicles having an electromagnetic rail brake or an eddy current brake, the braking element (3) of which is held by means of a drive device (4) such that it can be lowered or raised between an upper rest position and a lower effective position and is supported at least in the longitudinal direction in both positions via stops (1e), wherein the drive device (4) and the stops (1e) are held on a longitudinal carrier (1) of the bogie frame, which does not execute any spring movements in relation to the rail (7), characterised in that the braking element (3) is fixed in a horizontal plane in its rest position by a stop arrangement (6) known per se and is vertically sprung via at least two spring elements (5) arranged between the stop arrangement (6) and the longitudinal carrier (1).
  2. A bogie according to claim 1, fitted with an eddy current brake, characterised in that the stops (1e) are each provided with a receiver (1f) limiting the distance between the rail (7) and the braking element (3) in the effective position and fixing the braking element (3) in the transverse direction.
  3. A bogie according to claim 2, characterised in that the receiver (1f) of the stop (1e) and a cam (3b) on the braking element (3) co-operating with the receiver (1f) are each prismatically formed.
  4. A bogie according to claim 2 or 3, characterised in that the receiver (1f) is connected to the stop (1e) in a vertically adjustable manner.
EP88110636A 1987-07-16 1988-07-04 Undercarriage for railway vehicles with magnetic track brake or eddy current brake Expired - Lifetime EP0299318B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88110636T ATE82207T1 (en) 1987-07-16 1988-07-04 RUNNING GEAR FOR RAIL VEHICLES WITH A MAGNETIC RAIL BRAKE OR AN EDDY CURRENT BRAKE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873723525 DE3723525A1 (en) 1987-07-16 1987-07-16 UNDERCARRIAGE FOR RAILWAY VEHICLES WITH A MAGNETIC RAIL BRAKE OR A WHIRL-FLOW BRAKE
DE3723525 1987-07-16

Publications (3)

Publication Number Publication Date
EP0299318A2 EP0299318A2 (en) 1989-01-18
EP0299318A3 EP0299318A3 (en) 1989-08-02
EP0299318B1 true EP0299318B1 (en) 1992-11-11

Family

ID=6331700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88110636A Expired - Lifetime EP0299318B1 (en) 1987-07-16 1988-07-04 Undercarriage for railway vehicles with magnetic track brake or eddy current brake

Country Status (3)

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EP (1) EP0299318B1 (en)
AT (1) ATE82207T1 (en)
DE (2) DE3723525A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4009449C2 (en) * 1990-03-23 1997-08-07 Knorr Bremse Ag Eddy current rail brake
DE19732483A1 (en) * 1997-07-29 1999-02-04 Sab Wabco Bsi Verkehrstechnik Magnetic braking device for rail vehicles
CN107901940B (en) * 2017-12-13 2024-01-16 中南大学 Anti-overturning device for railway vehicle and railway vehicle bogie
JP7047916B2 (en) * 2018-07-30 2022-04-05 日本製鉄株式会社 Eddy current type rail brake device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1960595A (en) * 1933-12-19 1934-05-29 Charley A Poe Magnetic brake for railways
CH178733A (en) * 1934-12-28 1935-07-31 Oerlikon Maschf Rail vehicle with electromagnetic rail brakes.
US2103354A (en) * 1936-09-30 1937-12-28 Westinghouse Air Brake Co Magnetic brake shoe
AT175599B (en) * 1951-04-27 1953-07-25 Eksjoeverken Ab Suspension for electromagnetic rail brakes
DE1127387B (en) * 1958-07-24 1962-04-12 Hansa Waggonbau G M B H Electric rail brake for railway vehicles
FR1540461A (en) 1967-08-11 1968-09-27 Creusot Forges Ateliers Pendulum suspension device for magnetic brake pads on rails, for bogies of railway vehicles
DE1903315C3 (en) * 1969-01-23 1973-09-27 Knorr-Bremse Gmbh, 8000 Muenchen Suspension device for a magnetic rail brake
DE2418636A1 (en) * 1974-04-18 1975-10-30 Knorr Bremse Gmbh CENTERING DEVICE FOR RAIL BRAKE MAGNETS
DE2443832A1 (en) * 1974-09-13 1976-03-25 Knorr Bremse Gmbh HANGING DEVICE FOR RAIL BRAKE MAGNETS
IT1071511B (en) * 1976-10-11 1985-04-10 Wabco Westinghouse Spa ELECTROMAGNETIC SHOE BRAKE FOR RAIL VEHICLES
SE436484B (en) * 1980-11-19 1984-12-17 Sab Ind Ab ELECTROMAGNETIC RAILWAYS FOR A RAILWAY VEHICLE

Also Published As

Publication number Publication date
EP0299318A2 (en) 1989-01-18
EP0299318A3 (en) 1989-08-02
DE3875831D1 (en) 1992-12-17
ATE82207T1 (en) 1992-11-15
DE3723525A1 (en) 1989-01-26

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