WO2013034816A1 - Sand dispenser for preventing train wheels from skidding - Google Patents

Sand dispenser for preventing train wheels from skidding Download PDF

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Publication number
WO2013034816A1
WO2013034816A1 PCT/FR2011/000494 FR2011000494W WO2013034816A1 WO 2013034816 A1 WO2013034816 A1 WO 2013034816A1 FR 2011000494 W FR2011000494 W FR 2011000494W WO 2013034816 A1 WO2013034816 A1 WO 2013034816A1
Authority
WO
WIPO (PCT)
Prior art keywords
sand
piston
dispenser
tank
bell
Prior art date
Application number
PCT/FR2011/000494
Other languages
French (fr)
Inventor
Willy DELBARBA
Original Assignee
Delbarba Willy
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 Delbarba Willy filed Critical Delbarba Willy
Priority to EP11761098.0A priority Critical patent/EP2776300B1/en
Priority to PCT/FR2011/000494 priority patent/WO2013034816A1/en
Publication of WO2013034816A1 publication Critical patent/WO2013034816A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
    • B61C15/08—Preventing wheel slippage
    • B61C15/10—Preventing wheel slippage by depositing sand or like friction increasing materials
    • B61C15/102—Preventing wheel slippage by depositing sand or like friction increasing materials with sanding equipment of mechanical or fluid type, e.g. by means of steam

Definitions

  • the present invention relates to a machine that allows to distribute the sand of the sanders mounted on the trains, on the railroad rails this to restore adhesion to the braking and acceleration of the wheels on the rails.
  • This machine uses a cyclic sand dosing system, in order to easily control the flow of sand that must be spread on the rails before the wheels pass.
  • This machine makes it possible to transfer the sand contained in the sand reservoir into an intermediate chamber situated at the bottom of the dispenser; at the same time, compressed air projects this quantity of sand into the duct which conveys it onto the rail.
  • This machine allows to completely isolate the chamber of the sand tank, the outlet of the distributor and this in both phases, rest and work.
  • This machine additionally generates vibrations due to the translation of the dosing pistons, this vibration is important, it allows to fluidize and unclog the sand contained in the reservoir.
  • This sand feeder is performed by the compressed air of the train; it can also be controlled by an electrical source.
  • the flow of sand is directly proportional to the compressed air supply pressure or the delay of the electrical pulses in the case of the power supply.
  • the sand distribution consists of: A sand reservoir (1) which holds the sand, the latter is fixed under the body of the train; the sand (2) is directed towards the center at the bottom of the tank by means of a cylindro-conical shape, the sand distributor (3) is fixed under this reservoir, a compressed air inlet of the train (4) fed the sand dispenser, a hose (5) attached to the sand dispenser routes the latter on the rail near the de axle wheel.
  • a bell (10) belonging to the sand distributor is embedded in the sand tank (2), it reduces the downward thrust of sand, it is equipped with fins in the upper part to transmit the vibrations to the sand when the The dispenser is operative and also serves to limit the flow of sand through the constriction (15).
  • a piston (7) is equipped with two cylindrical rubber seals (6) and is controlled by a compressed air piston (11) which linearly reciprocates from top to bottom.
  • the linear displacement of the piston allows with its two joints to imprison a defined quantity of sand, by the volume separating the two joints.
  • a deformable synthetic washer characterized by a larger diameter than the tank connection port allows, during disassembly of the lower part of the dispenser, to block the fall of the sand during the maintenance of the latter.
  • the piston (7) moves downwards, at this point the cavity (16) is separated from the sand reservoir, it transfers this quantity of sand downwards while isolating the sand reservoir from the lower part of the distributor which is In correspondence with the outside air through the flexible pipe (5).
  • the piston (7) continues to descend, opens the cavity (16) and allows the sand contained in the latter to fall into the volume (14); at this level the sand contained in the tank is always isolated.
  • the compressed air (4) pushes this quantity of sand into the hose and feeds it onto the rail.
  • This machine makes it possible to avoid any rise in humidity in the tank in the two phases, operation and rest.
  • This machine makes it possible to accurately dose the quantity of sand Spread on the rail.
  • This machine generates vibration during operation that significantly increases Sand flowability when filling the dispenser.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Jigging Conveyors (AREA)

Abstract

The invention relates to a sand dispenser for preventing train wheels from skidding, characterized in that it includes a bell (10) which is to be embedded in a sand tank (1) attached under the train bodywork, and a piston (7) that is capable of carrying out a linear, alternating, up-and-down motion. Said piston is provided with two cylindrical gaskets (6) such that the linear motion of the piston makes it possible, with both gaskets thereof, to trap a defined amount of sand by volume, thus separating both gaskets while preventing any increase in moisture in the tank in the upper, lower, and intermediate piston stages. The sand dispenser is characterized in that the piston (7) is controlled by a compressed-air piston (11) that is completely isolated from the chamber in which the sand flows, and is thus safely sealed off from the air and the grains of sand. The sand dispenser is further characterized in that the bell (10) is provided with vanes in the upper portion thereof so as to transmit the vibrations of the sand, which are contained in the sand tank of the locomotive, thus sealing off the sand when the dispenser operates.

Description

DESCRIPTION  DESCRIPTION
DISTRIBUTEUR DE SABLE POUR L'ANTIPATINAGE SAND DISPENSER FOR ANTIPAINTING
DES ROUES DES TRAINS  TRAIN WHEELS
La présente invention concerne une machine qui permet de distribuer le sable des sablières montés sur les trains, sur les rails de chemin de fer ceci afin de redonner de l'adhérence au freinage et à l'accélération des roues sur les rails. Cette machine fait appel à un système de dosage cyclique du sable, ceci afin de pour pouvoir contrôler facilement le débit de sable qui doit être étalé sur les rails avant passage des roues. The present invention relates to a machine that allows to distribute the sand of the sanders mounted on the trains, on the railroad rails this to restore adhesion to the braking and acceleration of the wheels on the rails. This machine uses a cyclic sand dosing system, in order to easily control the flow of sand that must be spread on the rails before the wheels pass.
Cette machine permet de transvaser le sable contenu dans le réservoir de sable dans une chambre intermédiaire située en partie basse du distributeur ; simultanément, de l'air comprimé projette cette quantité de sable dans le conduit qui achemine ce dernier sur le rail. This machine makes it possible to transfer the sand contained in the sand reservoir into an intermediate chamber situated at the bottom of the dispenser; at the same time, compressed air projects this quantity of sand into the duct which conveys it onto the rail.
Cette machine permet d'isoler complètement l'enceinte du réservoir de sable, de la sortie du distributeur et ce dans les deux phases, repos et travail. Cette machine de plus génère des vibrations dues à la translation des pistons de dosages, cette vibration est importante, elle permet de fluidiser et de décolmater le sable contenu dans le réservoir. This machine allows to completely isolate the chamber of the sand tank, the outlet of the distributor and this in both phases, rest and work. This machine additionally generates vibrations due to the translation of the dosing pistons, this vibration is important, it allows to fluidize and unclog the sand contained in the reservoir.
La commande de ce doseur de sable est effectuée par l'air comprimé du train ; elle peut être aussi commandée par une source électrique. The control of this sand feeder is performed by the compressed air of the train; it can also be controlled by an electrical source.
Le débit de sable est directement proportionnel à la pression d'alimentation en air comprimé ou à la temporisation des impulsions électriques dans le cas de l'alimentation électrique. The flow of sand is directly proportional to the compressed air supply pressure or the delay of the electrical pulses in the case of the power supply.
En figure 1 , la distribution de sable est constituée de : Un réservoir de sable (1) qui retient le sable, ce dernier est fixé sous la caisse du train ; le sable (2) est dirigé vers le centre en bas du réservoir par l'intermédiaire d'une forme cylindro-conique, le distributeur de sable (3) est fixé sous ce réservoir, une arrivée d'air comprimé du train (4) alimente le distributeur de sable, un flexible (5) fixée sur le distributeur de sable achemine ce dernier sur le rail à proximité de la roue de Γ essieux. In Figure 1, the sand distribution consists of: A sand reservoir (1) which holds the sand, the latter is fixed under the body of the train; the sand (2) is directed towards the center at the bottom of the tank by means of a cylindro-conical shape, the sand distributor (3) is fixed under this reservoir, a compressed air inlet of the train (4) fed the sand dispenser, a hose (5) attached to the sand dispenser routes the latter on the rail near the de axle wheel.
En figure 2, le fonctionnement du distributeur est le suivant : In FIG. 2, the operation of the dispenser is as follows:
Une cloche (10) appartenant au distributeur de sable est noyée dans le réservoir de sable (2) , elle permet de réduire la poussée de sable vers la bas , elle est équipée d'ailettes en partie supérieur pour transmettre les vibrations au sable lorsque le distributeur est fonctionnant et elle a aussi pour fonction de limiter le débit du sable par l'intermédiaire de l'étranglement (15). A bell (10) belonging to the sand distributor is embedded in the sand tank (2), it reduces the downward thrust of sand, it is equipped with fins in the upper part to transmit the vibrations to the sand when the The dispenser is operative and also serves to limit the flow of sand through the constriction (15).
Un piston (7) est équipé de deux joints cylindriques en caoutchouc (6), il est commandé par un piston d'air comprimé (11) qui effectue un mouvement alternatif linéaire de haut en bas.  A piston (7) is equipped with two cylindrical rubber seals (6) and is controlled by a compressed air piston (11) which linearly reciprocates from top to bottom.
Le déplacement linéaire du piston permet avec ses deux joints d'emprisonner une quantité définie de sable, par le volume séparant les deux joints.  The linear displacement of the piston allows with its two joints to imprison a defined quantity of sand, by the volume separating the two joints.
Une rondelle synthétique déformable caractérisée par un diamètre plus grand que l'orifice de raccordement du réservoir permet, lors du démontage de la partie inférieure du distributeur, de bloquer la chute du sable lors de l'entretien de ce dernier.  A deformable synthetic washer characterized by a larger diameter than the tank connection port allows, during disassembly of the lower part of the dispenser, to block the fall of the sand during the maintenance of the latter.
En figure 3 : In Figure 3:
Le piston (7) se déplace vers le bas, à ce niveau la cavité (16) est séparé du réservoir de sable, elle transfert cette quantité de sable vers le bas tout en isolant le réservoir de sable de la parie inférieure du distributeur qui est En correspondance avec l'air extérieur à travers le tuyau flexible (5). The piston (7) moves downwards, at this point the cavity (16) is separated from the sand reservoir, it transfers this quantity of sand downwards while isolating the sand reservoir from the lower part of the distributor which is In correspondence with the outside air through the flexible pipe (5).
En figure 4 : In Figure 4:
Le piston (7) continuant à descendre, ouvre la cavité (16) et permet au sable contenu dans cette dernière de tomber dans le volume (14) ; à ce niveau le sable contenu dans le réservoir est toujours isolé. The piston (7) continues to descend, opens the cavity (16) and allows the sand contained in the latter to fall into the volume (14); at this level the sand contained in the tank is always isolated.
L'air comprimé (4) pousse cette quantité de sable dans le flexible et l'achemine sur le rail. The compressed air (4) pushes this quantity of sand into the hose and feeds it onto the rail.
De cette invention découle les principaux avantages suivants : Cette machine permet d'éviter toute remonté d'humidité dans le réservoir dans les deux phases, fonctionnement et repos. The main advantages of this invention are as follows: This machine makes it possible to avoid any rise in humidity in the tank in the two phases, operation and rest.
Cette machine permet de doser d'une manière précise la quantité de sable Etalée sur le rail. This machine makes it possible to accurately dose the quantity of sand Spread on the rail.
Cette machine permet de générer des vibrations pendant le fonctionnement qui augmentent d'une façon significative la coulabilité du Sable lors du remplissage du distributeur. This machine generates vibration during operation that significantly increases Sand flowability when filling the dispenser.

Claims

REVENDICATIONS
1°) Distributeur de sable pour Γ antipatinage des roues des trains, caractérisé en ce qu'il comprend une cloche (10) destinée à être noyée dans un réservoir de sable (1) fixé sous la caisse du train, et un piston (7) pouvant effectuer un mouvement alternatif linéaire de haut en bas, ce piston étant équipé de deux joints cylindriques (6), en sorte que le déplacement linéaire du piston permet avec ses deux joints d'emprisonner une quantité définie de sable, par volume séparant les deux joint, tout en évitant toute remontée d'humidité dans le réservoir dans la phase piston haut, piston bas et piston intermédiaire. 1 °) sand distributor for Γ traction control of the wheels of the trains, characterized in that it comprises a bell (10) intended to be embedded in a sand reservoir (1) fixed under the body of the train, and a piston (7 ) capable of reciprocating linearly from top to bottom, this piston being equipped with two cylindrical seals (6), so that the linear displacement of the piston allows with its two joints to imprison a defined quantity of sand, by volume separating the two seal, while avoiding any rise of moisture in the tank in the high piston phase, low piston and intermediate piston.
2°) Distributeur de sable selon la revendication 1 caractérisé en ce que le piston (7) est commandé par un piston d'air comprimé (1 1) qui est complètement isolé de la chambre où circule le sable et hermétiquement fermé donc à l'abri de l'air et des poussières de sable. 2) Sand dispenser according to claim 1 characterized in that the piston (7) is controlled by a piston of compressed air (1 1) which is completely isolated from the chamber where the sand circulates and hermetically closed so to the shelter from the air and sand dust.
3°) Distributeur de sable l'une quelconque des revendications 1 et 2 caractérisé en ce que la cloche (10) est équipée d'ailettes en partie supérieure, en sorte de transmettre les vibrations au sable, contenue dans le réservoir de sable de la locomotive, lorsque le distributeur fonctionne, le sable est ainsi décolmaté. 3) sand dispenser according to any one of claims 1 and 2 characterized in that the bell (10) is equipped with fins in the upper part, so as to transmit the vibrations to the sand, contained in the sand tank of the locomotive, when the distributor operates, the sand is thus unclogged.
PCT/FR2011/000494 2011-09-08 2011-09-08 Sand dispenser for preventing train wheels from skidding WO2013034816A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP11761098.0A EP2776300B1 (en) 2011-09-08 2011-09-08 Sand dispenser for preventing train wheels from skidding
PCT/FR2011/000494 WO2013034816A1 (en) 2011-09-08 2011-09-08 Sand dispenser for preventing train wheels from skidding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FR2011/000494 WO2013034816A1 (en) 2011-09-08 2011-09-08 Sand dispenser for preventing train wheels from skidding

Publications (1)

Publication Number Publication Date
WO2013034816A1 true WO2013034816A1 (en) 2013-03-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2011/000494 WO2013034816A1 (en) 2011-09-08 2011-09-08 Sand dispenser for preventing train wheels from skidding

Country Status (2)

Country Link
EP (1) EP2776300B1 (en)
WO (1) WO2013034816A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104787059A (en) * 2014-11-28 2015-07-22 南车青岛四方机车车辆股份有限公司 Sanding device installed on headstock and tramcar
WO2015189771A1 (en) 2014-06-10 2015-12-17 Microsistemi S.R.L. Sandbox for rail vehicles
CN109017829A (en) * 2018-07-26 2018-12-18 株洲电力机车电机修造有限公司 A kind of locomotive sand sprayer
CN109910924A (en) * 2019-04-18 2019-06-21 华铁西屋法维莱(青岛)交通设备有限公司 Rail traffic anti-compaction sander

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE332439C (en) * 1920-02-07 1921-01-31 Heinrich Glahe Sand spreader
FR593382A (en) * 1925-02-11 1925-08-21 Compressed air operated sand pit for all vehicles on rail or not
US2155214A (en) * 1937-11-24 1939-04-18 Westinghouse Air Brake Co Rail sanding device
GB857246A (en) * 1957-09-23 1960-12-29 Gresham & Craven Ltd Improvements in and relating to railway vehicles
EP0656292A1 (en) * 1993-12-01 1995-06-07 Forges De Belles-Ondes Sanding device with a recipient containing granular matter, particularly sand, for a wheel of a rail coach
DE29721340U1 (en) * 1997-12-03 1998-02-26 Füßmann, Dieter, 45711 Datteln Sand dosing device for rail vehicles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE332439C (en) * 1920-02-07 1921-01-31 Heinrich Glahe Sand spreader
FR593382A (en) * 1925-02-11 1925-08-21 Compressed air operated sand pit for all vehicles on rail or not
US2155214A (en) * 1937-11-24 1939-04-18 Westinghouse Air Brake Co Rail sanding device
GB857246A (en) * 1957-09-23 1960-12-29 Gresham & Craven Ltd Improvements in and relating to railway vehicles
EP0656292A1 (en) * 1993-12-01 1995-06-07 Forges De Belles-Ondes Sanding device with a recipient containing granular matter, particularly sand, for a wheel of a rail coach
DE29721340U1 (en) * 1997-12-03 1998-02-26 Füßmann, Dieter, 45711 Datteln Sand dosing device for rail vehicles

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015189771A1 (en) 2014-06-10 2015-12-17 Microsistemi S.R.L. Sandbox for rail vehicles
US10029703B2 (en) 2014-06-10 2018-07-24 Microsistemi S.R.L. Sandbox for rail vehicles
CN104787059A (en) * 2014-11-28 2015-07-22 南车青岛四方机车车辆股份有限公司 Sanding device installed on headstock and tramcar
CN109017829A (en) * 2018-07-26 2018-12-18 株洲电力机车电机修造有限公司 A kind of locomotive sand sprayer
CN109910924A (en) * 2019-04-18 2019-06-21 华铁西屋法维莱(青岛)交通设备有限公司 Rail traffic anti-compaction sander
CN109910924B (en) * 2019-04-18 2024-02-02 华铁西屋法维莱(青岛)交通设备有限公司 Hardening-preventing sand spreading device for rail transit

Also Published As

Publication number Publication date
EP2776300A1 (en) 2014-09-17
EP2776300B1 (en) 2021-02-17

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