EP4088041A2 - Garniture de frein pour frein à disque d'un véhicule ferroviaire et frein à disque - Google Patents

Garniture de frein pour frein à disque d'un véhicule ferroviaire et frein à disque

Info

Publication number
EP4088041A2
EP4088041A2 EP20839355.3A EP20839355A EP4088041A2 EP 4088041 A2 EP4088041 A2 EP 4088041A2 EP 20839355 A EP20839355 A EP 20839355A EP 4088041 A2 EP4088041 A2 EP 4088041A2
Authority
EP
European Patent Office
Prior art keywords
guide body
brake
brake pad
spacer
spacers
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Withdrawn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
EP20839355.3A
Other languages
German (de)
English (en)
Inventor
Bernhard Hämmerl
Xiqing XU (Sean)
Zhuang LIU (Eric)
Erich Fuderer
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.)
Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
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 Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Publication of EP4088041A2 publication Critical patent/EP4088041A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D69/0408—Attachment of linings specially adapted for plane linings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H5/00—Applications or arrangements of brakes with substantially radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D2069/0425—Attachment methods or devices
    • F16D2069/0433—Connecting elements not integral with the braking member, e.g. bolts, rivets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/2245—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members in which the common actuating member acts on two levers carrying the braking members, e.g. tong-type brakes

Definitions

  • the present invention relates to a brake lining for a disc brake of a rail vehicle according to the preamble of claim 1 and a disc brake.
  • the relative movements between the brake discs and the brake linings are dependent on the design properties of the bogie (primary suspension), the installation position and installation position of the brake caliper of the disc brake of the rail vehicle, as well as operating factors such as the load condition, downhill travel and required braking forces.
  • the positioning of the brake calipers in the bogie is structurally determined in such a way that the described relative movements lead to a statistically as uniform as possible coverage of the brake disks by the brake pads. Considered over the operating time, this condition must be fulfilled in order to achieve the most uniform possible wear of the brake disks.
  • the object of the present invention is to further develop a brake lining in such a way that, when used in a disc brake of a rail vehicle, it causes the brake disc to wear as evenly as possible.
  • the brake lining according to the invention for a disc brake of a rail vehicle has at least two carrier plates and at least one friction lining held on a respective one of the carrier plates.
  • a holding element for fixing the brake lining is fastened to a lining holder of a brake caliper of the disc brake.
  • At least one of the holding elements has a guide body undetachably arranged on the carrier plate and at least one spacer that rests on an end face of the guide body and can be releasably fastened to this and / or the carrier plate.
  • the positioning of the brake linings is therefore no longer exclusively determined by the construction of the brake lining carrier.
  • the design of the holding element with a guide body and at least one such spacer enables the basic installation position of the brake pad to be easily adapted relative to the brake disc without having to change the brake pad, since this basic installation position is adapted using the spacer or spacers.
  • Such a change in the installation position of the brake lining can take place, for example, in an operating depot as part of an extended regular control of the rail vehicle.
  • the brake lining has a set of differently shaped spacers that can be attached to facing end faces of the guide body or to facing faces of the guide body, with one or more of the spacers being selected when forming the holding element, which together form a holding element with a predetermined length with the guide body.
  • the set of differently shaped spacers means that there is always a combination of guide body and one or more of the spacers allows, from which a holding element can be put together with the predetermined length.
  • the spacer is arranged on at least one of the mutually facing end faces of the carrier plates.
  • This arrangement increases the length of the brake lining in the direction of the longitudinal axis of the holding element, which means that the friction area of the friction linings on the brake disks is enlarged in the radial direction and thus the formation of undesired unworn annular surfaces is effectively prevented.
  • the spacer is shaped in such a way that in a functional position fastened between facing end faces of the guide bodies it rests exclusively on the guide body or on a spacer fixed on the guide body of the adjacent carrier plate.
  • the spacer is shaped in such a way that it rests in a functional position fastened between facing end faces of the guide body both on the guide body and on the carrier plate on which the spacer is fixed, whereby the contact surface of the spacer on the guide body of the other carrier plate or the spacer, which is arranged on this other carrier plate, enlarged.
  • a spacer is arranged on at least one of the end faces of the guide body facing away from one another.
  • the arrangement of the spacer on the end face of the guide body facing away from the other guide body serves to maintain the predetermined length of the holding element.
  • a spacer is arranged on one of the end faces of the guide body facing away from one another and a spacer is arranged on one of the end faces of the guide body facing one another.
  • this enables the overall length of the brake lining to be increased while at the same time maintaining the predetermined length of the holding element.
  • the spacers are shaped in such a way that they can be attached to both of the end faces of the guide body.
  • these and the guide bodies have bores for receiving respective bolts with which the spacers are attached to the guide bodies
  • the end face of the respective spacer facing the respective end face is provided with a projection which rests in corresponding recesses of the guide body in the assembled position.
  • the respective spacer is on the one hand held in a form-fitting manner on the respective carrier plate by the bolt in the longitudinal direction of the brake lining. Due to the projection and the recess in the guide body that receives this projection, the spacer is additionally fixed in a form-fitting manner perpendicular to the longitudinal direction of the brake lining on the guide body.
  • a spacer which can be attached to one of the end faces of the guide body facing away from one another is provided on its side facing the carrier plate with a projection which, in the assembled position, rests in a corresponding recess in the carrier plate.
  • the spacer is easily secured in the plane of the carrier plate by means of a form fit. At right angles to this, such a spacer is secured against falling out after the covering has been pushed into the covering holder.
  • the guide body is dovetail-shaped in a cross section perpendicular to its longitudinal axis and thus enables a secure hold perpendicular to the direction of insertion of the brake pad into the brake pad holder of the brake caliper of the disc brake.
  • the friction linings are preferably either firmly fixed to the carrier plate in the form of large-area friction linings made of preferably organic carrier material, in particular glued or baked to it or, if several small-area friction linings, in particular made of sintered material, are configured per carrier plate via respective fastening pins on the carrier plate.
  • the fastening pin can be moved, in particular pivoted, by means of a tension spring supported in a recess of the lining holder.
  • one of the holding elements has a guide body which is undetachably arranged on the carrier plate.
  • at least two spacers are releasably attached to one end face of the carrier plate. This variant also enables the total length of the brake lining to be extended in a simple manner.
  • the disc brake according to the invention of a rail vehicle is characterized by a brake lining as described above.
  • FIGS. 2 and 3 are schematic top views of embodiment variants of a brake lining with a spacer or spacers arranged between the carrier plates,
  • FIG. 4 shows a perspective illustration of an embodiment variant of a brake lining according to the invention with spacers arranged on end faces of the guide body facing away from one another,
  • Fig. 5 is a plan view of the brake lining shown in Fig. 4,
  • FIGS. 4 and 6 10 and 11 representations corresponding to FIGS. 4 and 6 of a further embodiment variant of a brake lining according to the invention with spacers arranged only on opposite end faces of the guide body (FIG. 10) or only on the mutually facing end faces of the guide body with spacers arranged on both end faces a guide body attachable spacers and 12 to 19 top views of different design variants of a brake lining according to the invention with differently configured spacers arranged on the end faces of the guide body to illustrate the assembly of the spacers.
  • the reference numeral 1 denotes a respective embodiment variant of a brake pad according to the invention.
  • the brake lining has at least two carrier plates 2, 3 and at least one friction lining 4 held on a respective one of the carrier plates 2, 3.
  • the brake lining has two such carrier plates 2, 3 which, together with the friction linings 4 arranged on them, form two lining halves of at least approximately the same size.
  • the friction linings 4 are fixed to the carrier plates 2, 3 in a manner known per se.
  • the friction linings 4 shown in FIG. 4 can be moved, in particular, via fastening pins 11 attached to them on the lining holder held pivotable.
  • a tension spring 12 supported in a recess 24, 34 of the carrier plate 2, 3, which fixes the fastening pin 11 on the respective carrier plate 2, 3, is used for the pivotable mounting.
  • a holding element for fixing the brake lining 1 is fastened to a lining holder of a brake caliper of the disc brake.
  • At least one of these holding elements has a guide body 5 undetachably arranged on the carrier plate 2, 3 and at least one spacer 6, 7, 8 which rests on an end face 51, 52 of the guide body 5 and can be detachably fastened to this and / or the carrier plate 2, 3 , 9, 9a.
  • FIGS. A first variant of such a holding element is shown in FIGS. As can be seen in these figures, such a holding element is arranged on each of the carrier plates 2, 3.
  • the guide body 5 is preferably formed in one piece with the carrier plate 2, 3, for example as a cast part.
  • the guide body 5 is preferably dovetail-shaped when viewed in a cross-section perpendicular to its longitudinal axis AL and can be mounted on the brake pad holder (not shown here) of a brake caliper in the direction of the longitudinal axis AL of the holding element in a recess of the brake pad holder of the brake caliper that is shaped to match the cross section of the guide body 5 be inserted and fixed.
  • first spacers 6 are attached to spaced-apart end faces 52 of the guide body 5. In the brake pad 1 shown in FIG. 4, these spacers 6 are used to maintain a predetermined length L of the holding element, which is required to fix the brake pad 1 in the pad holder of the brake caliper of the disc brake in the direction of insertion of the brake pad 1.
  • composition of the holding elements from guide body 5 and one or more spacers 6, 7, 8, 9 enables variable positioning of the brake lining within the lining holder of the brake calliper.
  • one of the spacers 6 or both spacers 6 can be detached from the carrier plate 2, 3 and the guide body 5 with the brake lining according to the invention as part of maintenance of the bogie and replaced by other spacers 7, 8 as shown in Figs. 6-9.
  • the length of the holding element arranged on the respective carrier plate 2, 3 with the guide bodies 5 and the spacers 6 or 7, 8 arranged thereon corresponds to the predetermined length L.
  • a spacer 7 is arranged on facing end faces 51 of the guide body 5. This increases the length of the brake lining 1 in the direction of the longitudinal axis AL of the holding element.
  • the spacers 7 arranged on the facing end faces 51 of the guide body 5 determine the overall increase in the length of the brake lining 1.
  • the spacers 7 are dimensioned in their thickness (parallel to the axis of rotation of the brake disc) so that they rest both on the facing end faces 51 of the guide body 5 with a guide body spacer 72 and on the facing End faces 23, 33 of the carrier plates 2, 3 with a carrier plate spacer 71.
  • the spacers 7 are provided with a projection 73 which is inserted into a corresponding recess 53 in the end face 51 of the guide body 5 facing the other guide body 5 is molded.
  • the spacers 6, 7 and 8 shown in FIGS. 6 to 9 are shaped in such a way that they are only attached to one of the end faces 51, 52 of the guide body 5, either to the facing end face 51 of the guide body 5 or to the end face 52 of the guide body facing away from each other 5 can be attached.
  • the spacers 6 and 8 can be attached to the end faces 52 of the guide body 5 facing away from one another, while the spacers 7 can be attached to the end faces 51 of the guide body 5 facing one another.
  • An alternative embodiment of a spacer 9 is shown in FIGS. The spacer 9 shown here can be attached to both of the end faces 51, 52 of the guide body 5.
  • the spacers 9 are attached to the end faces 52 of the guide body 5 facing away from one another and thus ensure the aforementioned predetermined length L of the holding element.
  • the spacers 9 are attached to the facing end faces 51 of the guide body, which in turn leads to an increase in the length LB of the brake lining 1.
  • the thickness of the spacers 9 is such that they rest exclusively on the end faces 51, 52 of the guide body 5.
  • FIGS. 12 to 19 exemplary fastening options for the spacers 6 - 9 are shown on the basis of the spacers 7a, 9 and 9a.
  • the bolts 55 and the corresponding bores 54, 91 in the guide bodies 5 or the spacers 9 can vary in diameter.
  • the bolts 55, which are inserted between the carrier plates 2, 3, have a larger diameter than bolts 55 which protrude from the end faces 52 of the guide bodies 5 facing away from one another.
  • the spacers 9a are dimensioned such that they cover the entire end face 23, 33 of the carrier plates 2, 3.
  • the thickness of these spacers 9a is designed in such a way that they correspond to the thickness of the carrier plates 2, 3 in the region of the carrier plates 2, 3.
  • the thickness of these spacers 9a corresponds to the sum of the thickness of the carrier plates 2, 3 and the guide body 5.
  • the spacers 9a are preferably screwed to the respective carrier plates 2, 3 by bolts 56 designed as screw bolts.
  • the spacer 9a is fixed in a form-fitting manner perpendicular to the longitudinal direction of the brake lining 1 on the guide body 5.
  • the spacers 7a similar to the spacers 7, have a projection 73a which is received in a corresponding groove 58 in the outer end face 52 of the guide body 5 in the assembled state.
  • the bolt 56 is designed as a screw bolt, so that the spacer 7a can be fixed in a form-fitting manner on the guide body 5 with the aid of the bolt 56 and the molded-on projection 73a, analogously to the spacer 9a described with reference to FIG. 16.
  • the bolts 56 themselves are used as spacers.
  • corresponding bores 25 are provided in the carrier plates 2, 3, into which the bolts 56 can be screwed or inserted.
  • the spacers 9 according to FIG. 19 essentially correspond to those of the spacers shown in FIG. 15, but each with only one bore 91 for receiving a bolt 55. It is also conceivable to screw the spacers 6, 7, 7a, 8, 9, 9a to the respective carrier plate 2, 3 or the guide bodies 5 formed in one piece therewith.
  • the outer spacers 9b which can be attached to the end faces 52 of the guide body 5 facing away from one another, are provided on their side facing the carrier plate 2, 3 with a projection 91b which, in the assembled position, rests in a corresponding recess 25, 35 of the carrier plate 2, 3 .
  • This spacer 9b is thus held in a form-fitting manner in the plane of the carrier plate 2, 3. At right angles to this, these spacers 9b are secured against falling out after the lining 1 has been pushed into the lining holder.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne une garniture de frein (1) pour un frein à disque d'un véhicule ferroviaire, présentant au moins deux plaques de support (2, 3) et au moins une garniture de friction (4) maintenue sur une des plaques de support (2, 3), un élément de retenue respectif étant fixé sur une face des plaques de support (2, 3) opposée à ladite au moins une garniture de friction (4) pour fixer la garniture de frein (1) sur un support de garniture d'un étrier du frein à disque. Selon l'invention, au moins un des éléments de retenue présente un corps de guidage (5) disposé de manière inamovible sur la plaque de support (2, 3), ainsi qu'au moins une pièce d'espacement (6, 7, 7a, 8, 9, 9a) qui est placée contre une face frontale (51, 52) du corps de guidage (5) et qui peut être fixée de manière amovible sur celui-ci et/ou sur la plaque de support (2, 3).
EP20839355.3A 2020-01-07 2020-12-29 Garniture de frein pour frein à disque d'un véhicule ferroviaire et frein à disque Withdrawn EP4088041A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020100139.8A DE102020100139A1 (de) 2020-01-07 2020-01-07 Bremsbelag für eine Scheibenbremse eines Schienenfahrzeugs und Scheibenbremse
PCT/EP2020/087992 WO2021140047A2 (fr) 2020-01-07 2020-12-29 Garniture de frein pour frein à disque d'un véhicule ferroviaire et frein à disque

Publications (1)

Publication Number Publication Date
EP4088041A2 true EP4088041A2 (fr) 2022-11-16

Family

ID=74181170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20839355.3A Withdrawn EP4088041A2 (fr) 2020-01-07 2020-12-29 Garniture de frein pour frein à disque d'un véhicule ferroviaire et frein à disque

Country Status (4)

Country Link
EP (1) EP4088041A2 (fr)
CN (1) CN114945758B (fr)
DE (1) DE102020100139A1 (fr)
WO (1) WO2021140047A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT525457B1 (de) * 2022-04-04 2023-04-15 Miba Frictec Gmbh Bremsbelag
CN119469809A (zh) * 2024-11-30 2025-02-18 山东众顺机电科技有限公司 一种多工位刹车盘磨损测试装置

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1264115A (fr) * 1968-03-01 1972-02-16
IT1032231B (it) * 1974-02-23 1979-05-30 Knorr Bremse Gmbh Dispositivo di sopporto per acco gliebo in modo univoco una guar nizione per freni inserible in un sostegno in particolare per cepri di freni a disco per veico li su rotate
ZA793427B (en) * 1978-07-20 1980-06-25 Ferodo Ltd Brakes
CA1323979C (fr) * 1988-02-23 1993-11-09 Masao Inoue Fabrication de la garniture de freins a disque
GB8822670D0 (en) * 1988-09-27 1988-11-02 Automotive Prod Plc Bonding apparatus
ITRM20050005A1 (it) * 2005-01-10 2006-07-11 Rutgers Rail S P A Pattino per freni a disco perfezionato, con elementi di attrito, in particolare per uso ferroviario.
DE102008019003A1 (de) * 2008-04-14 2009-10-15 Tmd Friction Services Gmbh Bremsbelag mit Adapter für Scheibenbremsen
DE102009006290A1 (de) 2009-01-27 2010-07-29 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Verbindung eines Bremsbelages mit einem Belaghalter
CN101832350B (zh) * 2010-04-09 2012-01-11 武汉元丰汽车零部件有限公司 双轭板固定钳盘式制动器
DE102012102584A1 (de) * 2012-03-26 2013-09-26 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Scheibenbremse mit Rückstelleinrichtung und Bremsbelag
CN103133571B (zh) * 2013-02-06 2016-04-13 北京天宜上佳新材料有限公司 列车用浮动式制动闸片
DE202013101402U1 (de) * 2013-04-02 2014-07-03 Faiveley Transport Witten Gmbh Bremsbelag für Teilbelag-Scheibenbremsen, insbesondere für Schienenfahrzeuge
JP2015010614A (ja) * 2013-06-26 2015-01-19 曙ブレーキ工業株式会社 ディスクブレーキ用ブレーキパッド組立体
DE102014119489B4 (de) * 2014-12-23 2016-11-03 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Bremsbelag für eine Teilbelag-Scheibenbremse und Anordnung eines Bremsbelags an einem Belaghalter
DE102016104969A1 (de) * 2015-10-09 2017-04-13 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Scheibenbremse für ein Nutzfahrzeug
AT519454B1 (de) * 2017-04-25 2018-07-15 Miba Frictec Gmbh Bremsbelag
JP7168415B2 (ja) * 2018-10-31 2022-11-09 曙ブレーキ工業株式会社 シム及びシム取付方法、並びにディスクブレーキ用パッド組立体

Also Published As

Publication number Publication date
DE102020100139A1 (de) 2021-07-08
CN114945758A (zh) 2022-08-26
WO2021140047A3 (fr) 2021-12-09
WO2021140047A2 (fr) 2021-07-15
CN114945758B (zh) 2024-10-01

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