EP0015793B1 - Jaw type track brake for rail vehicles - Google Patents

Jaw type track brake for rail vehicles Download PDF

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Publication number
EP0015793B1
EP0015793B1 EP80400190A EP80400190A EP0015793B1 EP 0015793 B1 EP0015793 B1 EP 0015793B1 EP 80400190 A EP80400190 A EP 80400190A EP 80400190 A EP80400190 A EP 80400190A EP 0015793 B1 EP0015793 B1 EP 0015793B1
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EP
European Patent Office
Prior art keywords
levers
rail
running rail
track
tenons
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
Application number
EP80400190A
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German (de)
French (fr)
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EP0015793A1 (en
Inventor
André Oriol
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.)
SAXBY
Original Assignee
SAXBY
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Filing date
Publication date
Application filed by SAXBY filed Critical SAXBY
Priority to AT80400190T priority Critical patent/ATE2414T1/en
Publication of EP0015793A1 publication Critical patent/EP0015793A1/en
Application granted granted Critical
Publication of EP0015793B1 publication Critical patent/EP0015793B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K7/00—Railway stops fixed to permanent way; Track brakes or retarding apparatus fixed to permanent way; Sand tracks or the like
    • B61K7/02—Track brakes or retarding apparatus
    • B61K7/04—Track brakes or retarding apparatus with clamping action

Definitions

  • the present invention relates to a rail brake for railway wagons, operating by gravity, of the type comprising pairs of articulated levers carrying two brake shoes forming jaws arranged on either side of a running rail provided vertically movable.
  • Such track brakes called gravity because they exert on the wagons a deceleration effort proportional to their weight, are currently widely used in marshalling yards and are for example described in FR-A-2 233 212 and FR-A-2 333 213 belonging to the applicant company.
  • these brakes have, as shown for example in FR-A-1 338 242, two rolling rails pierced with holes for fixing the bearings where the jaws are articulated as well as the stabilization bars which hold the two rails apart constant, while allowing the lifting of the brake assembly and the weighing of the wagons when the wheels penetrate into their jaws.
  • the main object of the present invention is therefore to remedy these drawbacks and, to do this, it relates to a track brake of the aforementioned type which is essentially characterized in that the levers are provided with pins which are articulated in housings acting as bearings formed by a flange added in two parts coming to be fixed on the sole of the running rail, the hook shape of this flange being able to retain the tenons of each of the levers in the angle formed by the core of the rail and its sole, and in that the running rail receiving said levers is constituted by one of the two rails of the current track, previously detached from the sleepers by removing the lag screws.
  • the track brake according to the invention can indeed be fixed directly and without machining on one of the rails of the current track.
  • Track brakes are thus finally obtained, which are installed in a simpler way than existing models and which it is possible to split into elements of short length, in order to distribute them in the sorting classification tracks to obtain braking. almost continuous until the final stop of the wagons, instead of only doing it at the top of the classification tracks, as is currently the case.
  • This arrangement makes it possible to significantly improve the precision of the docking speeds and to eliminate any collision detrimental to the loading of the wagons.
  • This track brake essentially consists of a number of pairs of levers, only one of which is shown in the figure, respectively at 1 and 2. These levers are arranged on either side of a running rail 3 of the track and carry brake shoes forming jaws, constituted here in a conventional manner by simple sections of rails 4.
  • the running rail 3 can be formed directly by one of the rails of the current track, previously detached from the crosspieces, by removing the lag screws, over a length which depends on the flexibility of the said rail.
  • the levers 1 and 2 are in fact mounted directly on the rail, without it being necessary to machine the latter, by means of tenons 5 which are articulated in housings acting as bearings, formed by a flange attached in two parts 6. This flange is pinched on the sole of the running rail by two bolts such as 7 and its hook shape makes it possible to retain the tenons 5 of each of the levers 1 and 2 in the angle formed by the web of the rail and its sole.
  • Candles 8, integral with a chassis 9, provide lateral support for the rail separated from the crosspieces, while allowing its vertical clearance.
  • a control jack 10, for example of the electromechanical type, is mounted on the chassis 9 in order to allow the end of the levers 1 and 2 to be raised by means of a linkage 11 and brackets 12 mounted so as to rotate about of horizontal axes 13, said brackets bearing on the lower ramp of the levers by rollers 14.
  • the lifting of the levers 1 and 2 by the jack 10 is such that the spacing between the brake shoes 4 is reduced to a value less than the smallest existing thickness of the wheels of wagons to be braked. Consequently, by being introduced into the rut of the brake shoes, the wheels raise the assembly constituted by these brake shoes, the levers 1 and 2, and the running rail 3 with the associated flange 6.
  • the lifting takes place by rotation of said assembly around the rollers 14 carried by the ends of the brackets 12, while the jack stands 8 maintain the running rail 3 in its vertical deflection plane.
  • the braking force exerted by the brake shoes 4 on the wheels of the wagons is directly a function of the apparent weight of said wheels, the assembly behaving like a kind of balance.
  • a reverse command on the jack 10 causes the lowering of the brackets 12 and consequently of the levers 1 and 2, as well as of the running rail 3 which then comes to bear on the chassis 9. In doing so, the brake pads 4 move apart wheels of the wagons and release them from any delaying effort.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
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Abstract

1. A track brake for railway carriages and trucks, comprising jaws and operating by gravity, of the type comprising pairs of articulated levers (1, 2) carrying two braking shoes (4) forming jaws disposed on each side of a vertically mobile running rail (3), characterized in that the levers (1, 2) are provided with tenons (5) articulated in housings serving as bearings formed by a two-part movable flange (6) fixed to the base of the running rail (3) without it being necessary to machine the latter, the hook shape of this flange (6) being adapted to retain the tenons (5) of each of the levers (1, 2) in the angle constituted by the web of the rail and its base, and in that the running rail (3) receiving said levers (1, 2) is constituted by one of the two rails of the running track, previously released from the sleepers by removal of the sleeper screws.

Description

La présente invention concerne un frein de voie pour wagons de chemin de fer, fonctionnant par gravité, du type comprenant des paires de leviers articulés portant deux patins freineurs formant mâchoires disposés de part et d'autre d'un rail de roulement prévu mobile verticalement.The present invention relates to a rail brake for railway wagons, operating by gravity, of the type comprising pairs of articulated levers carrying two brake shoes forming jaws arranged on either side of a running rail provided vertically movable.

De tels freins de voie, dits à gravité parce qu'ils exercent sur les wagons un effort de ralentissement proportionnel à leur poids, sont actuellement largement utilisés dans les gares de triage et sont par exemple décrits dans les FR-A-2 233 212 et FR-A-2 333 213 appartenant à la société demanderesse.Such track brakes, called gravity because they exert on the wagons a deceleration effort proportional to their weight, are currently widely used in marshalling yards and are for example described in FR-A-2 233 212 and FR-A-2 333 213 belonging to the applicant company.

Généralement, ces freins possèdent, comme représenté par exemple dans le FR-A-1 338 242, deux rails de roulement percés de trous pour fixer les paliers où s'articulent les mâchoires ainsi que les barres de stabilisation qui maintiennent les deux rails à écartement constant, tout en permettant le soulvèvement de l'ensemble du frein et la pesée des wagons lors de la pénétration des roues dans leurs mâchoires.Generally, these brakes have, as shown for example in FR-A-1 338 242, two rolling rails pierced with holes for fixing the bearings where the jaws are articulated as well as the stabilization bars which hold the two rails apart constant, while allowing the lifting of the brake assembly and the weighing of the wagons when the wheels penetrate into their jaws.

En raison du nombre de trous nécessaires et de l'importance de leur diamètre, il est matériellement impossible de les réaliser sur place sur la voie courante. Ces freins sont donc entièrement montés en usine et insérés dans la voie courante par sectionnement des rails. Or, cette opération de sectionnement des voies, outre qu'elle n'est pas aisée, conduit à l'immobilisation d'un triage pendant un délai assez long, ce qui est préjudiciable à son exploitation.Because of the number of holes required and the importance of their diameter, it is materially impossible to make them on site on the current track. These brakes are therefore fully assembled in the factory and inserted into the running track by sectioning the rails. However, this operation of sectioning the tracks, apart from being not easy, leads to the immobilization of a yard for a fairly long period, which is detrimental to its operation.

La présente invention a donc pour but principal de remédier à ces inconvénients et, pour ce faire, elle a pour objet un frein de voie du type susmentionné qui se caractérisé essentiellement en ce que les leviers sont pourvus de tenons venant s'articuler dans des logements faisant office de paliers formés par une bride rapportée en deux parties venant se fixer sur la semelle du rail de roulement, la forme en crochet de cette bride étant apte à retenir les tenons de chacun des leviers dans l'angle constitué par l'âme du rail et sa semelle, et en ce que le rail de roulement recevant lesdits leviers est constitué par l'un des deux rails de la voie courante, préalablement désolidarisé des traverses par suppression des tire-fonds.The main object of the present invention is therefore to remedy these drawbacks and, to do this, it relates to a track brake of the aforementioned type which is essentially characterized in that the levers are provided with pins which are articulated in housings acting as bearings formed by a flange added in two parts coming to be fixed on the sole of the running rail, the hook shape of this flange being able to retain the tenons of each of the levers in the angle formed by the core of the rail and its sole, and in that the running rail receiving said levers is constituted by one of the two rails of the current track, previously detached from the sleepers by removing the lag screws.

Le frein de voie conforme à l'invention peut en effet être fixé directement et sans usinage sur l'un des rails de la voie courante. On obtient donc finalement ainsi des freins de voie qui s'installent de maniere plus simple que les modèles existants et qu'il est possible de fractionner en éléments de petite longueur, afin de les répartir dans les voies de classement des triages pour obtenir un freinage quasi-continu jusqu'à l'arrêt final des wagons, au lieu de le faire uniquement en tête des voies de classement, comme c'est le cas actuellement. Cette disposition permet d'améliorer notablement la précision des vitesses d'accostage et d'éliminer tout heurt préjudiciable au chargement des wagons.The track brake according to the invention can indeed be fixed directly and without machining on one of the rails of the current track. Track brakes are thus finally obtained, which are installed in a simpler way than existing models and which it is possible to split into elements of short length, in order to distribute them in the sorting classification tracks to obtain braking. almost continuous until the final stop of the wagons, instead of only doing it at the top of the classification tracks, as is currently the case. This arrangement makes it possible to significantly improve the precision of the docking speeds and to eliminate any collision detrimental to the loading of the wagons.

Une forme d'exécution de l'invention est décrite ci-après à titre d'exemple, en référence au dessin annexé dans lequel la figure unique est une vue simplifiée en coupe transversale d'un frein de voie conforme à l'invention.An embodiment of the invention is described below by way of example, with reference to the accompanying drawing in which the single figure is a simplified view in cross section of a track brake according to the invention.

Ce frein de voie se compose essentiellement d'un certain nombre de paires de leviers, dont une seule est représentée sur la figure, respectivement en 1 et 2. Ces leviers sont disposés de part et d'autre d'un rail de roulement 3 de la voie et portent des patins de freinage formant mâchoires, constitués ici de façon classique par de simples tronçons de rails 4.This track brake essentially consists of a number of pairs of levers, only one of which is shown in the figure, respectively at 1 and 2. These levers are arranged on either side of a running rail 3 of the track and carry brake shoes forming jaws, constituted here in a conventional manner by simple sections of rails 4.

Conformément à l'invention, le rail de roulement 3 peut être constitué directement par l'un des rails de la voie courant, préalablement désolidarisé des traverses, par suppression des tire-fonds, sur une longueur fonction de la flexibilité dudit rail. Les leviers 1 et 2 sont en effet montés directement sur le rail, sans qu'il soit nécessaire d'usiner celui-ci, grâce à des tenons 5 venant s'articuler dans des logements faisant office de paliers, formés par une bride rapportée en deux parties 6. Cette bride est pincée sur la semelle du rail de roulement par deux boulons tels que 7 et sa forme en crochet permet de retenir les tenons 5 de chacun des leviers 1 et 2 dans l'angle constitué par l'âme du rail et sa semelle.According to the invention, the running rail 3 can be formed directly by one of the rails of the current track, previously detached from the crosspieces, by removing the lag screws, over a length which depends on the flexibility of the said rail. The levers 1 and 2 are in fact mounted directly on the rail, without it being necessary to machine the latter, by means of tenons 5 which are articulated in housings acting as bearings, formed by a flange attached in two parts 6. This flange is pinched on the sole of the running rail by two bolts such as 7 and its hook shape makes it possible to retain the tenons 5 of each of the levers 1 and 2 in the angle formed by the web of the rail and its sole.

Des chandelles 8, solidaires d'un châssis 9, assurent le maintien latéral du rail désolidarisé des traverses, tout en permettant son débattement vertical. Un vérin de commande 10, par exemple du type électromécanique, est monté sur le châssis 9 afin de permettre de soulever l'extrémité des leviers 1 et 2 par l'intermédiaire d'une tringlerie 11 et d'équerres 12 montées mobiles en rotation autour d'axes horizontaux 13, lesdites équerres prenant appui sur la rampe inférieure des leviers par des galets 14.Candles 8, integral with a chassis 9, provide lateral support for the rail separated from the crosspieces, while allowing its vertical clearance. A control jack 10, for example of the electromechanical type, is mounted on the chassis 9 in order to allow the end of the levers 1 and 2 to be raised by means of a linkage 11 and brackets 12 mounted so as to rotate about of horizontal axes 13, said brackets bearing on the lower ramp of the levers by rollers 14.

Le soulèvement des leviers 1 et 2 par le vérin 10 est tel que l'écartement entre les patins freineurs 4 se trouve réduit à une valeur inférieure à la plus petite épaisseur existante des roues de wagons à freiner. Dès lors, en s'introduisant dans l'ornière des patins freineurs, les roues soulèvent l'ensemble constitué par ces patins freineurs, les leviers 1 et 2, et le rail de roulement 3 avec la bride associée 6. Le soulèvement s'opère par rotation dudit ensemble autour des galets 14 portés par les extrémités des équerres 12, tandis que les chandelles 8 maintiennent le rail de roulement 3 dans son plan de débattement vertical.The lifting of the levers 1 and 2 by the jack 10 is such that the spacing between the brake shoes 4 is reduced to a value less than the smallest existing thickness of the wheels of wagons to be braked. Consequently, by being introduced into the rut of the brake shoes, the wheels raise the assembly constituted by these brake shoes, the levers 1 and 2, and the running rail 3 with the associated flange 6. The lifting takes place by rotation of said assembly around the rollers 14 carried by the ends of the brackets 12, while the jack stands 8 maintain the running rail 3 in its vertical deflection plane.

On comprendra aisément qu'ainsi, l'effort de freinage exercé par les patins freineurs 4 sur les roues des wagons est directement fonction du poids apparent desdites roues, l'ensemble se comportant comme une sorte de balance. Une commande inverse sur le vérin 10 provoque l'abaissement des équerres 12 et par conséquent des leviers 1 et 2, ainsi que du rail de roulement 3 qui vient alors en appui sur le châssis 9. Ce faisant, les patins freineurs 4 s'écartent des roues des wagons et les libèrent de tout effort retardateur.It will easily be understood that thus, the braking force exerted by the brake shoes 4 on the wheels of the wagons is directly a function of the apparent weight of said wheels, the assembly behaving like a kind of balance. A reverse command on the jack 10 causes the lowering of the brackets 12 and consequently of the levers 1 and 2, as well as of the running rail 3 which then comes to bear on the chassis 9. In doing so, the brake pads 4 move apart wheels of the wagons and release them from any delaying effort.

On voit donc en définitive qu'avec la disposition conforme à la présente invention, il est possible de réaliser de façon extrêmement simple et peu coûteuse des freins de voie efficaces fonctionnant par gravité, et ce sans avoir à sectionner le rail de la voie courante.It is therefore seen ultimately that with the arrangement according to the present invention, it is possible to produce extremely simple and inexpensive effective track brakes operating by gravity, without having to cut the rail of the current track.

Claims (1)

1. A track brake for railway carriages and trucks, comprising jaws and operating by gravity, of the type comprising pairs of articulated levers (1, 2) carrying two braking shoes (4) forming jaws disposed on each side of a vertically mobile running rail (3), characterized in that the levers (1, 2) are provided with tenons (5) articulated in housings serving as bearings formed by a two-part movable flange (6) fixed to the base of the running rail (3) without it being necessary to machine the latter, the hook shape of this flange (6) being adapted to retain the tenons (5) of each of the levers (1, 2) in the angle constituted by the web of the rail and its base, and in that the running rail (3) receiving said levers (1, 2) is constituted by one of the two rails of the running track, previously released from the sleepers by removal of the sleeper screws.
EP80400190A 1979-02-19 1980-02-06 Jaw type track brake for rail vehicles Expired EP0015793B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400190T ATE2414T1 (en) 1979-02-19 1980-02-06 SHOE TRACK BRAKE FOR RAIL VEHICLES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7904101 1979-02-19
FR7904101A FR2449014A1 (en) 1979-02-19 1979-02-19 JAW TRACK BRAKE USING ONE OF THE TRACK TRACK RAILS, WITHOUT MACHINING, FOR WEIGHING CARS AND BRAKING THEM PROPORTIONALLY AT WEIGHT

Publications (2)

Publication Number Publication Date
EP0015793A1 EP0015793A1 (en) 1980-09-17
EP0015793B1 true EP0015793B1 (en) 1983-02-09

Family

ID=9222124

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400190A Expired EP0015793B1 (en) 1979-02-19 1980-02-06 Jaw type track brake for rail vehicles

Country Status (17)

Country Link
EP (1) EP0015793B1 (en)
AT (1) ATE2414T1 (en)
CS (1) CS262405B2 (en)
DD (1) DD149194A5 (en)
DE (1) DE3061840D1 (en)
ES (1) ES254340Y (en)
FI (1) FI71276C (en)
FR (1) FR2449014A1 (en)
GR (1) GR65761B (en)
MX (1) MX149173A (en)
NO (1) NO147666C (en)
PL (1) PL120122B1 (en)
PT (1) PT70840A (en)
RO (1) RO79045A (en)
SU (1) SU957754A3 (en)
YU (1) YU42502B (en)
ZA (1) ZA80866B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101913365B (en) * 2009-12-30 2012-06-06 张力 Anti-skid stopping device for railway freight line/special line
CN104527718A (en) * 2014-12-05 2015-04-22 淮北矿业（集团）有限责任公司 Manual linkage car arresting device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1270475A (en) * 1960-03-17 1961-08-25 Westinghouse Air Brake Co Railroad car retarder
FR1338242A (en) * 1962-11-08 1963-09-20 Westinghouse Air Brake Co braking equipment for railway wagons
FR2068287A5 (en) * 1970-10-01 1971-08-20 Abex Corp
FR2233212A1 (en) * 1973-06-14 1975-01-10 Saxby Variable force railway track brake - force is varied by piston stroke toggles and cam action on braking beams
FR2233213A1 (en) * 1973-06-18 1975-01-10 Saxby Track mounted brake for railway vehicles - pivoted beams engage sides of wheel and have vertically movable pivot

Also Published As

Publication number Publication date
SU957754A3 (en) 1982-09-07
CS96580A2 (en) 1988-08-16
FR2449014A1 (en) 1980-09-12
NO800419L (en) 1980-08-20
GR65761B (en) 1980-10-30
FR2449014B1 (en) 1984-04-13
NO147666C (en) 1983-05-25
FI71276B (en) 1986-09-09
FI71276C (en) 1986-12-19
YU37380A (en) 1983-01-21
RO79045A (en) 1982-06-25
EP0015793A1 (en) 1980-09-17
ES254340Y (en) 1981-10-01
MX149173A (en) 1983-09-14
ES254340U (en) 1981-03-16
PT70840A (en) 1980-03-01
PL222051A1 (en) 1980-11-03
NO147666B (en) 1983-02-14
ATE2414T1 (en) 1983-03-15
CS262405B2 (en) 1989-03-14
DE3061840D1 (en) 1983-03-17
FI800230A (en) 1980-08-20
ZA80866B (en) 1981-09-30
DD149194A5 (en) 1981-07-01
YU42502B (en) 1988-10-31
PL120122B1 (en) 1982-02-27

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